diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index 1fe9a553c37b..f0025d1c3d5a 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -101,6 +101,16 @@ Description:
devices that support receiving integrity metadata.
+What: /sys/block/<disk>/partscan
+Date: May 2024
+Contact: Christoph Hellwig <hch@xxxxxx>
+Description:
+ The /sys/block/<disk>/partscan files reports if partition
+ scanning is enabled for the disk. It returns "1" if partition
+ scanning is enabled, or "0" if not. The value type is a 32-bit
+ unsigned integer, but only "0" and "1" are valid values.
+
+
What: /sys/block/<disk>/<partition>/alignment_offset
Date: April 2009
Contact: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
diff --git a/Documentation/admin-guide/hw-vuln/core-scheduling.rst b/Documentation/admin-guide/hw-vuln/core-scheduling.rst
index cf1eeefdfc32..a92e10ec402e 100644
--- a/Documentation/admin-guide/hw-vuln/core-scheduling.rst
+++ b/Documentation/admin-guide/hw-vuln/core-scheduling.rst
@@ -67,8 +67,8 @@ arg4:
will be performed for all tasks in the task group of ``pid``.
arg5:
- userspace pointer to an unsigned long for storing the cookie returned by
- ``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands.
+ userspace pointer to an unsigned long long for storing the cookie returned
+ by ``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands.
In order for a process to push a cookie to, or pull a cookie from a process, it
is required to have the ptrace access mode: `PTRACE_MODE_READ_REALCREDS` to the
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index 8da1b7281827..9285f69f4f73 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -389,7 +389,7 @@ pages of all memory cgroups except ``/having_care_already``.::
# # further filter out all cgroups except one at '/having_care_already'
echo memcg > 1/type
echo /having_care_already > 1/memcg_path
- echo N > 1/matching
+ echo Y > 1/matching
Note that ``anon`` and ``memcg`` filters are currently supported only when
``paddr`` `implementation <sysfs_contexts>` is being used.
diff --git a/Documentation/sphinx/kernel_include.py b/Documentation/sphinx/kernel_include.py
index abe768088377..638762442336 100755
--- a/Documentation/sphinx/kernel_include.py
+++ b/Documentation/sphinx/kernel_include.py
@@ -97,7 +97,6 @@ class KernelInclude(Include):
# HINT: this is the only line I had to change / commented out:
#path = utils.relative_path(None, path)
- path = nodes.reprunicode(path)
encoding = self.options.get(
'encoding', self.state.document.settings.input_encoding)
e_handler=self.state.document.settings.input_encoding_error_handler
diff --git a/Makefile b/Makefile
index f66238b5d931..c3b324ed985e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 6
PATCHLEVEL = 6
-SUBLEVEL = 31
+SUBLEVEL = 32
EXTRAVERSION =
NAME = Hurr durr I'ma ninja sloth
diff --git a/block/genhd.c b/block/genhd.c
index f9b81be6c761..2ef1e08d70ec 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -345,9 +345,7 @@ int disk_scan_partitions(struct gendisk *disk, blk_mode_t mode)
struct block_device *bdev;
int ret = 0;
- if (disk->flags & (GENHD_FL_NO_PART | GENHD_FL_HIDDEN))
- return -EINVAL;
- if (test_bit(GD_SUPPRESS_PART_SCAN, &disk->state))
+ if (!disk_has_partscan(disk))
return -EINVAL;
if (disk->open_partitions)
return -EBUSY;
@@ -503,8 +501,7 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk,
goto out_unregister_bdi;
/* Make sure the first partition scan will be proceed */
- if (get_capacity(disk) && !(disk->flags & GENHD_FL_NO_PART) &&
- !test_bit(GD_SUPPRESS_PART_SCAN, &disk->state))
+ if (get_capacity(disk) && disk_has_partscan(disk))
set_bit(GD_NEED_PART_SCAN, &disk->state);
bdev_add(disk->part0, ddev->devt);
@@ -1040,6 +1037,12 @@ static ssize_t diskseq_show(struct device *dev,
return sprintf(buf, "%llu\n", disk->diskseq);
}
+static ssize_t partscan_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%u\n", disk_has_partscan(dev_to_disk(dev)));
+}
+
static DEVICE_ATTR(range, 0444, disk_range_show, NULL);
static DEVICE_ATTR(ext_range, 0444, disk_ext_range_show, NULL);
static DEVICE_ATTR(removable, 0444, disk_removable_show, NULL);
@@ -1053,6 +1056,7 @@ static DEVICE_ATTR(stat, 0444, part_stat_show, NULL);
static DEVICE_ATTR(inflight, 0444, part_inflight_show, NULL);
static DEVICE_ATTR(badblocks, 0644, disk_badblocks_show, disk_badblocks_store);
static DEVICE_ATTR(diskseq, 0444, diskseq_show, NULL);
+static DEVICE_ATTR(partscan, 0444, partscan_show, NULL);
#ifdef CONFIG_FAIL_MAKE_REQUEST
ssize_t part_fail_show(struct device *dev,
@@ -1099,6 +1103,7 @@ static struct attribute *disk_attrs[] = {
&dev_attr_events_async.attr,
&dev_attr_events_poll_msecs.attr,
&dev_attr_diskseq.attr,
+ &dev_attr_partscan.attr,
#ifdef CONFIG_FAIL_MAKE_REQUEST
&dev_attr_fail.attr,
#endif
diff --git a/block/partitions/core.c b/block/partitions/core.c
index e58c8b50350b..962e4b57d64a 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -592,10 +592,7 @@ static int blk_add_partitions(struct gendisk *disk)
struct parsed_partitions *state;
int ret = -EAGAIN, p;
- if (disk->flags & GENHD_FL_NO_PART)
- return 0;
-
- if (test_bit(GD_SUPPRESS_PART_SCAN, &disk->state))
+ if (!disk_has_partscan(disk))
return 0;
state = check_partition(disk);
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 64f4573656c6..e67a91120385 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -5368,7 +5368,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
goto err;
break;
case BINDER_SET_MAX_THREADS: {
- int max_threads;
+ u32 max_threads;
if (copy_from_user(&max_threads, ubuf,
sizeof(max_threads))) {
diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h
index 7270d4d22207..5b7c80b99ae8 100644
--- a/drivers/android/binder_internal.h
+++ b/drivers/android/binder_internal.h
@@ -421,7 +421,7 @@ struct binder_proc {
struct list_head todo;
struct binder_stats stats;
struct list_head delivered_death;
- int max_threads;
+ u32 max_threads;
int requested_threads;
int requested_threads_started;
int tmp_ref;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 6f6341f70278..67b75ff0f7c3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1025,6 +1025,9 @@ int amdgpu_ras_query_error_status(struct amdgpu_device *adev,
if (!obj)
return -EINVAL;
+ if (!info || info->head.block == AMDGPU_RAS_BLOCK_COUNT)
+ return -EINVAL;
+
if (info->head.block == AMDGPU_RAS_BLOCK__UMC) {
amdgpu_ras_get_ecc_info(adev, &err_data);
} else {
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c
index 3966845c7694..230be292ff35 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c
+++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c
@@ -1033,7 +1033,12 @@ static bool setup_dsc_config(
if (!is_dsc_possible)
goto done;
- dsc_cfg->num_slices_v = pic_height/slice_height;
+ if (slice_height > 0) {
+ dsc_cfg->num_slices_v = pic_height / slice_height;
+ } else {
+ is_dsc_possible = false;
+ goto done;
+ }
if (target_bandwidth_kbps > 0) {
is_dsc_possible = decide_dsc_target_bpp_x16(
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 3a927452a650..7e39017e440f 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1819,8 +1819,13 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if (err)
goto free_card;
-
- } else if (!mmc_card_hs400es(card)) {
+ } else if (mmc_card_hs400es(card)) {
+ if (host->ops->execute_hs400_tuning) {
+ err = host->ops->execute_hs400_tuning(host, card);
+ if (err)
+ goto free_card;
+ }
+ } else {
/* Select the desired bus width optionally */
err = mmc_select_bus_width(card);
if (err > 0 && mmc_card_hs(card)) {
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
index d8509e86214e..6c6f267dcccc 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -547,17 +547,15 @@ bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
/**
* ice_vc_isvalid_q_id
- * @vf: pointer to the VF info
- * @vsi_id: VSI ID
+ * @vsi: VSI to check queue ID against
* @qid: VSI relative queue ID
*
* check for the valid queue ID
*/
-static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid)
+static bool ice_vc_isvalid_q_id(struct ice_vsi *vsi, u8 qid)
{
- struct ice_vsi *vsi = ice_find_vsi(vf->pf, vsi_id);
/* allocated Tx and Rx queues should be always equal for VF VSI */
- return (vsi && (qid < vsi->alloc_txq));
+ return qid < vsi->alloc_txq;
}
/**
@@ -1257,7 +1255,7 @@ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
*/
q_map = vqs->rx_queues;
for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
- if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
@@ -1279,7 +1277,7 @@ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
q_map = vqs->tx_queues;
for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
- if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
@@ -1384,7 +1382,7 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
q_map = vqs->tx_queues;
for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
- if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
@@ -1410,7 +1408,7 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
} else if (q_map) {
for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
- if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
@@ -1466,7 +1464,7 @@ ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
vsi_q_id = vsi_q_id_idx;
- if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
+ if (!ice_vc_isvalid_q_id(vsi, vsi_q_id))
return VIRTCHNL_STATUS_ERR_PARAM;
q_vector->num_ring_rx++;
@@ -1480,7 +1478,7 @@ ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
vsi_q_id = vsi_q_id_idx;
- if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
+ if (!ice_vc_isvalid_q_id(vsi, vsi_q_id))
return VIRTCHNL_STATUS_ERR_PARAM;
q_vector->num_ring_tx++;
@@ -1629,7 +1627,7 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
qpi->txq.headwb_enabled ||
!ice_vc_isvalid_ring_len(qpi->txq.ring_len) ||
!ice_vc_isvalid_ring_len(qpi->rxq.ring_len) ||
- !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
+ !ice_vc_isvalid_q_id(vsi, qpi->txq.queue_id)) {
goto error_param;
}
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
index daa6a1e894cf..6fdbd73804d1 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
@@ -107,9 +107,6 @@ ice_vc_fdir_param_check(struct ice_vf *vf, u16 vsi_id)
if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF))
return -EINVAL;
- if (vsi_id != vf->lan_vsi_num)
- return -EINVAL;
-
if (!ice_vc_isvalid_vsi_id(vf, vsi_id))
return -EINVAL;
diff --git a/drivers/net/ethernet/micrel/ks8851_common.c b/drivers/net/ethernet/micrel/ks8851_common.c
index 502518cdb461..6453c92f0fa7 100644
--- a/drivers/net/ethernet/micrel/ks8851_common.c
+++ b/drivers/net/ethernet/micrel/ks8851_common.c
@@ -328,7 +328,6 @@ static irqreturn_t ks8851_irq(int irq, void *_ks)
{
struct ks8851_net *ks = _ks;
struct sk_buff_head rxq;
- unsigned handled = 0;
unsigned long flags;
unsigned int status;
struct sk_buff *skb;
@@ -336,24 +335,17 @@ static irqreturn_t ks8851_irq(int irq, void *_ks)
ks8851_lock(ks, &flags);
status = ks8851_rdreg16(ks, KS_ISR);
+ ks8851_wrreg16(ks, KS_ISR, status);
netif_dbg(ks, intr, ks->netdev,
"%s: status 0x%04x\n", __func__, status);
- if (status & IRQ_LCI)
- handled |= IRQ_LCI;
-
if (status & IRQ_LDI) {
u16 pmecr = ks8851_rdreg16(ks, KS_PMECR);
pmecr &= ~PMECR_WKEVT_MASK;
ks8851_wrreg16(ks, KS_PMECR, pmecr | PMECR_WKEVT_LINK);
-
- handled |= IRQ_LDI;
}
- if (status & IRQ_RXPSI)
- handled |= IRQ_RXPSI;
-
if (status & IRQ_TXI) {
unsigned short tx_space = ks8851_rdreg16(ks, KS_TXMIR);
@@ -365,20 +357,12 @@ static irqreturn_t ks8851_irq(int irq, void *_ks)
if (netif_queue_stopped(ks->netdev))
netif_wake_queue(ks->netdev);
spin_unlock(&ks->statelock);
-
- handled |= IRQ_TXI;
}
- if (status & IRQ_RXI)
- handled |= IRQ_RXI;
-
if (status & IRQ_SPIBEI) {
netdev_err(ks->netdev, "%s: spi bus error\n", __func__);
- handled |= IRQ_SPIBEI;
}
- ks8851_wrreg16(ks, KS_ISR, handled);
-
if (status & IRQ_RXI) {
/* the datasheet says to disable the rx interrupt during
* packet read-out, however we're masking the interrupt
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 21b6c4d94a63..6d31061818e9 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -174,6 +174,7 @@ struct ax88179_data {
u32 wol_supported;
u32 wolopts;
u8 disconnecting;
+ u8 initialized;
};
struct ax88179_int_data {
@@ -1673,6 +1674,18 @@ static int ax88179_reset(struct usbnet *dev)
return 0;
}
+static int ax88179_net_reset(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+
+ if (ax179_data->initialized)
+ ax88179_reset(dev);
+ else
+ ax179_data->initialized = 1;
+
+ return 0;
+}
+
static int ax88179_stop(struct usbnet *dev)
{
u16 tmp16;
@@ -1692,6 +1705,7 @@ static const struct driver_info ax88179_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1704,6 +1718,7 @@ static const struct driver_info ax88178a_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1716,7 +1731,7 @@ static const struct driver_info cypress_GX3_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1729,7 +1744,7 @@ static const struct driver_info dlink_dub1312_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1742,7 +1757,7 @@ static const struct driver_info sitecom_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1755,7 +1770,7 @@ static const struct driver_info samsung_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1768,7 +1783,7 @@ static const struct driver_info lenovo_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1781,7 +1796,7 @@ static const struct driver_info belkin_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1794,7 +1809,7 @@ static const struct driver_info toshiba_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1807,7 +1822,7 @@ static const struct driver_info mct_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1820,7 +1835,7 @@ static const struct driver_info at_umc2000_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1833,7 +1848,7 @@ static const struct driver_info at_umc200_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
@@ -1846,7 +1861,7 @@ static const struct driver_info at_umc2000sp_info = {
.unbind = ax88179_unbind,
.status = ax88179_status,
.link_reset = ax88179_link_reset,
- .reset = ax88179_reset,
+ .reset = ax88179_net_reset,
.stop = ax88179_stop,
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
.rx_fixup = ax88179_rx_fixup,
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index dcc94ee2458d..c4c535b01181 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -126,7 +126,7 @@ static int scp_elf_read_ipi_buf_addr(struct mtk_scp *scp,
static int scp_ipi_init(struct mtk_scp *scp, const struct firmware *fw)
{
int ret;
- size_t offset;
+ size_t buf_sz, offset;
/* read the ipi buf addr from FW itself first */
ret = scp_elf_read_ipi_buf_addr(scp, fw, &offset);
@@ -138,6 +138,14 @@ static int scp_ipi_init(struct mtk_scp *scp, const struct firmware *fw)
}
dev_info(scp->dev, "IPI buf addr %#010zx\n", offset);
+ /* Make sure IPI buffer fits in the L2TCM range assigned to this core */
+ buf_sz = sizeof(*scp->recv_buf) + sizeof(*scp->send_buf);
+
+ if (scp->sram_size < buf_sz + offset) {
+ dev_err(scp->dev, "IPI buffer does not fit in SRAM.\n");
+ return -EOVERFLOW;
+ }
+
scp->recv_buf = (struct mtk_share_obj __iomem *)
(scp->sram_base + offset);
scp->send_buf = (struct mtk_share_obj __iomem *)
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 7ce7bb164005..58ea1e1391ce 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -19,6 +19,7 @@
#include <linux/console.h>
#include <linux/vt_kern.h>
#include <linux/input.h>
+#include <linux/irq_work.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
@@ -48,6 +49,25 @@ static struct kgdb_io kgdboc_earlycon_io_ops;
static int (*earlycon_orig_exit)(struct console *con);
#endif /* IS_BUILTIN(CONFIG_KGDB_SERIAL_CONSOLE) */
+/*
+ * When we leave the debug trap handler we need to reset the keyboard status
+ * (since the original keyboard state gets partially clobbered by kdb use of
+ * the keyboard).
+ *
+ * The path to deliver the reset is somewhat circuitous.
+ *
+ * To deliver the reset we register an input handler, reset the keyboard and
+ * then deregister the input handler. However, to get this done right, we do
+ * have to carefully manage the calling context because we can only register
+ * input handlers from task context.
+ *
+ * In particular we need to trigger the action from the debug trap handler with
+ * all its NMI and/or NMI-like oddities. To solve this the kgdboc trap exit code
+ * (the "post_exception" callback) uses irq_work_queue(), which is NMI-safe, to
+ * schedule a callback from a hardirq context. From there we have to defer the
+ * work again, this time using schedule_work(), to get a callback using the
+ * system workqueue, which runs in task context.
+ */
#ifdef CONFIG_KDB_KEYBOARD
static int kgdboc_reset_connect(struct input_handler *handler,
struct input_dev *dev,
@@ -99,10 +119,17 @@ static void kgdboc_restore_input_helper(struct work_struct *dummy)
static DECLARE_WORK(kgdboc_restore_input_work, kgdboc_restore_input_helper);
+static void kgdboc_queue_restore_input_helper(struct irq_work *unused)
+{
+ schedule_work(&kgdboc_restore_input_work);
+}
+
+static DEFINE_IRQ_WORK(kgdboc_restore_input_irq_work, kgdboc_queue_restore_input_helper);
+
static void kgdboc_restore_input(void)
{
if (likely(system_state == SYSTEM_RUNNING))
- schedule_work(&kgdboc_restore_input_work);
+ irq_work_queue(&kgdboc_restore_input_irq_work);
}
static int kgdboc_register_kbd(char **cptr)
@@ -133,6 +160,7 @@ static void kgdboc_unregister_kbd(void)
i--;
}
}
+ irq_work_sync(&kgdboc_restore_input_irq_work);
flush_work(&kgdboc_restore_input_work);
}
#else /* ! CONFIG_KDB_KEYBOARD */
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 4062a486b9e6..579d90efc281 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1718,7 +1718,6 @@ static int __dwc3_gadget_get_frame(struct dwc3 *dwc)
*/
static int __dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool interrupt)
{
- struct dwc3 *dwc = dep->dwc;
struct dwc3_gadget_ep_cmd_params params;
u32 cmd;
int ret;
@@ -1743,8 +1742,7 @@ static int __dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool int
dep->resource_index = 0;
if (!interrupt) {
- if (!DWC3_IP_IS(DWC3) || DWC3_VER_IS_PRIOR(DWC3, 310A))
- mdelay(1);
+ mdelay(1);
dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
} else if (!ret) {
dep->flags |= DWC3_EP_END_TRANSFER_PENDING;
diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index 37b56ce75f39..125269f39f83 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -26,6 +26,7 @@
#define TPS_REG_MODE 0x03
#define TPS_REG_CMD1 0x08
#define TPS_REG_DATA1 0x09
+#define TPS_REG_VERSION 0x0F
#define TPS_REG_INT_EVENT1 0x14
#define TPS_REG_INT_EVENT2 0x15
#define TPS_REG_INT_MASK1 0x16
@@ -515,49 +516,67 @@ static irqreturn_t cd321x_interrupt(int irq, void *data)
static irqreturn_t tps6598x_interrupt(int irq, void *data)
{
+ int intev_len = TPS_65981_2_6_INTEVENT_LEN;
struct tps6598x *tps = data;
- u64 event1 = 0;
- u64 event2 = 0;
+ u64 event1[2] = { };
+ u64 event2[2] = { };
+ u32 version;
u32 status;
int ret;
mutex_lock(&tps->lock);
- ret = tps6598x_read64(tps, TPS_REG_INT_EVENT1, &event1);
- ret |= tps6598x_read64(tps, TPS_REG_INT_EVENT2, &event2);
+ ret = tps6598x_read32(tps, TPS_REG_VERSION, &version);
+ if (ret)
+ dev_warn(tps->dev, "%s: failed to read version (%d)\n",
+ __func__, ret);
+
+ if (TPS_VERSION_HW_VERSION(version) == TPS_VERSION_HW_65987_8_DH ||
+ TPS_VERSION_HW_VERSION(version) == TPS_VERSION_HW_65987_8_DK)
+ intev_len = TPS_65987_8_INTEVENT_LEN;
+
+ ret = tps6598x_block_read(tps, TPS_REG_INT_EVENT1, event1, intev_len);
+
+ ret = tps6598x_block_read(tps, TPS_REG_INT_EVENT1, event1, intev_len);
if (ret) {
- dev_err(tps->dev, "%s: failed to read events\n", __func__);
+ dev_err(tps->dev, "%s: failed to read event1\n", __func__);
goto err_unlock;
}
- trace_tps6598x_irq(event1, event2);
+ ret = tps6598x_block_read(tps, TPS_REG_INT_EVENT2, event2, intev_len);
+ if (ret) {
+ dev_err(tps->dev, "%s: failed to read event2\n", __func__);
+ goto err_unlock;
+ }
+ trace_tps6598x_irq(event1[0], event2[0]);
- if (!(event1 | event2))
+ if (!(event1[0] | event1[1] | event2[0] | event2[1]))
goto err_unlock;
if (!tps6598x_read_status(tps, &status))
goto err_clear_ints;
- if ((event1 | event2) & TPS_REG_INT_POWER_STATUS_UPDATE)
+ if ((event1[0] | event2[0]) & TPS_REG_INT_POWER_STATUS_UPDATE)
if (!tps6598x_read_power_status(tps))
goto err_clear_ints;
- if ((event1 | event2) & TPS_REG_INT_DATA_STATUS_UPDATE)
+ if ((event1[0] | event2[0]) & TPS_REG_INT_DATA_STATUS_UPDATE)
if (!tps6598x_read_data_status(tps))
goto err_clear_ints;
/* Handle plug insert or removal */
- if ((event1 | event2) & TPS_REG_INT_PLUG_EVENT)
+ if ((event1[0] | event2[0]) & TPS_REG_INT_PLUG_EVENT)
tps6598x_handle_plug_event(tps, status);
err_clear_ints:
- tps6598x_write64(tps, TPS_REG_INT_CLEAR1, event1);
- tps6598x_write64(tps, TPS_REG_INT_CLEAR2, event2);
+ tps6598x_block_write(tps, TPS_REG_INT_CLEAR1, event1, intev_len);
+ tps6598x_block_write(tps, TPS_REG_INT_CLEAR2, event2, intev_len);
err_unlock:
mutex_unlock(&tps->lock);
- if (event1 | event2)
+ if (event1[0] | event1[1] | event2[0] | event2[1])
return IRQ_HANDLED;
+
return IRQ_NONE;
}
diff --git a/drivers/usb/typec/tipd/tps6598x.h b/drivers/usb/typec/tipd/tps6598x.h
index 527857549d69..1fc3cc8ad199 100644
--- a/drivers/usb/typec/tipd/tps6598x.h
+++ b/drivers/usb/typec/tipd/tps6598x.h
@@ -199,4 +199,15 @@
#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_A BIT(2)
#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_B (BIT(2) | BIT(1))
+/* Version Register */
+#define TPS_VERSION_HW_VERSION_MASK GENMASK(31, 24)
+#define TPS_VERSION_HW_VERSION(x) TPS_FIELD_GET(TPS_VERSION_HW_VERSION_MASK, (x))
+#define TPS_VERSION_HW_65981_2_6 0x00
+#define TPS_VERSION_HW_65987_8_DH 0xF7
+#define TPS_VERSION_HW_65987_8_DK 0xF9
+
+/* Int Event Register length */
+#define TPS_65981_2_6_INTEVENT_LEN 8
+#define TPS_65987_8_INTEVENT_LEN 11
+
#endif /* __TPS6598X_H__ */
diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c
index 73cd5bf35047..2431febc4615 100644
--- a/drivers/usb/typec/ucsi/displayport.c
+++ b/drivers/usb/typec/ucsi/displayport.c
@@ -275,8 +275,6 @@ static void ucsi_displayport_work(struct work_struct *work)
struct ucsi_dp *dp = container_of(work, struct ucsi_dp, work);
int ret;
- mutex_lock(&dp->con->lock);
-
ret = typec_altmode_vdm(dp->alt, dp->header,
dp->vdo_data, dp->vdo_size);
if (ret)
@@ -285,8 +283,6 @@ static void ucsi_displayport_work(struct work_struct *work)
dp->vdo_data = NULL;
dp->vdo_size = 0;
dp->header = 0;
-
- mutex_unlock(&dp->con->lock);
}
void ucsi_displayport_remove_partner(struct typec_altmode *alt)
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 1a4fe9f60295..787cc9ff9029 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -82,13 +82,6 @@ struct erofs_dev_context {
bool flatdev;
};
-struct erofs_fs_context {
- struct erofs_mount_opts opt;
- struct erofs_dev_context *devs;
- char *fsid;
- char *domain_id;
-};
-
/* all filesystem-wide lz4 configurations */
struct erofs_sb_lz4_info {
/* # of pages needed for EROFS lz4 rolling decompression */
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index c9f9a43197db..113414e6f35b 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -367,18 +367,18 @@ static int erofs_read_superblock(struct super_block *sb)
return ret;
}
-static void erofs_default_options(struct erofs_fs_context *ctx)
+static void erofs_default_options(struct erofs_sb_info *sbi)
{
#ifdef CONFIG_EROFS_FS_ZIP
- ctx->opt.cache_strategy = EROFS_ZIP_CACHE_READAROUND;
- ctx->opt.max_sync_decompress_pages = 3;
- ctx->opt.sync_decompress = EROFS_SYNC_DECOMPRESS_AUTO;
+ sbi->opt.cache_strategy = EROFS_ZIP_CACHE_READAROUND;
+ sbi->opt.max_sync_decompress_pages = 3;
+ sbi->opt.sync_decompress = EROFS_SYNC_DECOMPRESS_AUTO;
#endif
#ifdef CONFIG_EROFS_FS_XATTR
- set_opt(&ctx->opt, XATTR_USER);
+ set_opt(&sbi->opt, XATTR_USER);
#endif
#ifdef CONFIG_EROFS_FS_POSIX_ACL
- set_opt(&ctx->opt, POSIX_ACL);
+ set_opt(&sbi->opt, POSIX_ACL);
#endif
}
@@ -423,17 +423,17 @@ static const struct fs_parameter_spec erofs_fs_parameters[] = {
static bool erofs_fc_set_dax_mode(struct fs_context *fc, unsigned int mode)
{
#ifdef CONFIG_FS_DAX
- struct erofs_fs_context *ctx = fc->fs_private;
+ struct erofs_sb_info *sbi = fc->s_fs_info;
switch (mode) {
case EROFS_MOUNT_DAX_ALWAYS:
warnfc(fc, "DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
- set_opt(&ctx->opt, DAX_ALWAYS);
- clear_opt(&ctx->opt, DAX_NEVER);
+ set_opt(&sbi->opt, DAX_ALWAYS);
+ clear_opt(&sbi->opt, DAX_NEVER);
return true;
case EROFS_MOUNT_DAX_NEVER:
- set_opt(&ctx->opt, DAX_NEVER);
- clear_opt(&ctx->opt, DAX_ALWAYS);
+ set_opt(&sbi->opt, DAX_NEVER);
+ clear_opt(&sbi->opt, DAX_ALWAYS);
return true;
default:
DBG_BUGON(1);
@@ -448,7 +448,7 @@ static bool erofs_fc_set_dax_mode(struct fs_context *fc, unsigned int mode)
static int erofs_fc_parse_param(struct fs_context *fc,
struct fs_parameter *param)
{
- struct erofs_fs_context *ctx = fc->fs_private;
+ struct erofs_sb_info *sbi = fc->s_fs_info;
struct fs_parse_result result;
struct erofs_device_info *dif;
int opt, ret;
@@ -461,9 +461,9 @@ static int erofs_fc_parse_param(struct fs_context *fc,
case Opt_user_xattr:
#ifdef CONFIG_EROFS_FS_XATTR
if (result.boolean)
- set_opt(&ctx->opt, XATTR_USER);
+ set_opt(&sbi->opt, XATTR_USER);
else
- clear_opt(&ctx->opt, XATTR_USER);
+ clear_opt(&sbi->opt, XATTR_USER);
#else
errorfc(fc, "{,no}user_xattr options not supported");
#endif
@@ -471,16 +471,16 @@ static int erofs_fc_parse_param(struct fs_context *fc,
case Opt_acl:
#ifdef CONFIG_EROFS_FS_POSIX_ACL
if (result.boolean)
- set_opt(&ctx->opt, POSIX_ACL);
+ set_opt(&sbi->opt, POSIX_ACL);
else
- clear_opt(&ctx->opt, POSIX_ACL);
+ clear_opt(&sbi->opt, POSIX_ACL);
#else
errorfc(fc, "{,no}acl options not supported");
#endif
break;
case Opt_cache_strategy:
#ifdef CONFIG_EROFS_FS_ZIP
- ctx->opt.cache_strategy = result.uint_32;
+ sbi->opt.cache_strategy = result.uint_32;
#else
errorfc(fc, "compression not supported, cache_strategy ignored");
#endif
@@ -502,27 +502,27 @@ static int erofs_fc_parse_param(struct fs_context *fc,
kfree(dif);
return -ENOMEM;
}
- down_write(&ctx->devs->rwsem);
- ret = idr_alloc(&ctx->devs->tree, dif, 0, 0, GFP_KERNEL);
- up_write(&ctx->devs->rwsem);
+ down_write(&sbi->devs->rwsem);
+ ret = idr_alloc(&sbi->devs->tree, dif, 0, 0, GFP_KERNEL);
+ up_write(&sbi->devs->rwsem);
if (ret < 0) {
kfree(dif->path);
kfree(dif);
return ret;
}
- ++ctx->devs->extra_devices;
+ ++sbi->devs->extra_devices;
break;
#ifdef CONFIG_EROFS_FS_ONDEMAND
case Opt_fsid:
- kfree(ctx->fsid);
- ctx->fsid = kstrdup(param->string, GFP_KERNEL);
- if (!ctx->fsid)
+ kfree(sbi->fsid);
+ sbi->fsid = kstrdup(param->string, GFP_KERNEL);
+ if (!sbi->fsid)
return -ENOMEM;
break;
case Opt_domain_id:
- kfree(ctx->domain_id);
- ctx->domain_id = kstrdup(param->string, GFP_KERNEL);
- if (!ctx->domain_id)
+ kfree(sbi->domain_id);
+ sbi->domain_id = kstrdup(param->string, GFP_KERNEL);
+ if (!sbi->domain_id)
return -ENOMEM;
break;
#else
@@ -578,8 +578,7 @@ static const struct export_operations erofs_export_ops = {
static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
{
struct inode *inode;
- struct erofs_sb_info *sbi;
- struct erofs_fs_context *ctx = fc->fs_private;
+ struct erofs_sb_info *sbi = EROFS_SB(sb);
int err;
sb->s_magic = EROFS_SUPER_MAGIC;
@@ -587,19 +586,6 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
sb->s_maxbytes = MAX_LFS_FILESIZE;
sb->s_op = &erofs_sops;
- sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
- if (!sbi)
- return -ENOMEM;
-
- sb->s_fs_info = sbi;
- sbi->opt = ctx->opt;
- sbi->devs = ctx->devs;
- ctx->devs = NULL;
- sbi->fsid = ctx->fsid;
- ctx->fsid = NULL;
- sbi->domain_id = ctx->domain_id;
- ctx->domain_id = NULL;
-
sbi->blkszbits = PAGE_SHIFT;
if (erofs_is_fscache_mode(sb)) {
sb->s_blocksize = PAGE_SIZE;
@@ -703,9 +689,9 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
static int erofs_fc_get_tree(struct fs_context *fc)
{
- struct erofs_fs_context *ctx = fc->fs_private;
+ struct erofs_sb_info *sbi = fc->s_fs_info;
- if (IS_ENABLED(CONFIG_EROFS_FS_ONDEMAND) && ctx->fsid)
+ if (IS_ENABLED(CONFIG_EROFS_FS_ONDEMAND) && sbi->fsid)
return get_tree_nodev(fc, erofs_fc_fill_super);
return get_tree_bdev(fc, erofs_fc_fill_super);
@@ -715,19 +701,19 @@ static int erofs_fc_reconfigure(struct fs_context *fc)
{
struct super_block *sb = fc->root->d_sb;
struct erofs_sb_info *sbi = EROFS_SB(sb);
- struct erofs_fs_context *ctx = fc->fs_private;
+ struct erofs_sb_info *new_sbi = fc->s_fs_info;
DBG_BUGON(!sb_rdonly(sb));
- if (ctx->fsid || ctx->domain_id)
+ if (new_sbi->fsid || new_sbi->domain_id)
erofs_info(sb, "ignoring reconfiguration for fsid|domain_id.");
- if (test_opt(&ctx->opt, POSIX_ACL))
+ if (test_opt(&new_sbi->opt, POSIX_ACL))
fc->sb_flags |= SB_POSIXACL;
else
fc->sb_flags &= ~SB_POSIXACL;
- sbi->opt = ctx->opt;
+ sbi->opt = new_sbi->opt;
fc->sb_flags |= SB_RDONLY;
return 0;
@@ -758,12 +744,15 @@ static void erofs_free_dev_context(struct erofs_dev_context *devs)
static void erofs_fc_free(struct fs_context *fc)
{
- struct erofs_fs_context *ctx = fc->fs_private;
+ struct erofs_sb_info *sbi = fc->s_fs_info;
- erofs_free_dev_context(ctx->devs);
- kfree(ctx->fsid);
- kfree(ctx->domain_id);
- kfree(ctx);
+ if (!sbi)
+ return;
+
+ erofs_free_dev_context(sbi->devs);
+ kfree(sbi->fsid);
+ kfree(sbi->domain_id);
+ kfree(sbi);
}
static const struct fs_context_operations erofs_context_ops = {
@@ -775,38 +764,35 @@ static const struct fs_context_operations erofs_context_ops = {
static int erofs_init_fs_context(struct fs_context *fc)
{
- struct erofs_fs_context *ctx;
+ struct erofs_sb_info *sbi;
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
- if (!ctx)
+ sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
+ if (!sbi)
return -ENOMEM;
- ctx->devs = kzalloc(sizeof(struct erofs_dev_context), GFP_KERNEL);
- if (!ctx->devs) {
- kfree(ctx);
+
+ sbi->devs = kzalloc(sizeof(struct erofs_dev_context), GFP_KERNEL);
+ if (!sbi->devs) {
+ kfree(sbi);
return -ENOMEM;
}
- fc->fs_private = ctx;
+ fc->s_fs_info = sbi;
- idr_init(&ctx->devs->tree);
- init_rwsem(&ctx->devs->rwsem);
- erofs_default_options(ctx);
+ idr_init(&sbi->devs->tree);
+ init_rwsem(&sbi->devs->rwsem);
+ erofs_default_options(sbi);
fc->ops = &erofs_context_ops;
return 0;
}
static void erofs_kill_sb(struct super_block *sb)
{
- struct erofs_sb_info *sbi;
+ struct erofs_sb_info *sbi = EROFS_SB(sb);
- if (erofs_is_fscache_mode(sb))
+ if (IS_ENABLED(CONFIG_EROFS_FS_ONDEMAND) && sbi->fsid)
kill_anon_super(sb);
else
kill_block_super(sb);
- sbi = EROFS_SB(sb);
- if (!sbi)
- return;
-
erofs_free_dev_context(sbi->devs);
fs_put_dax(sbi->dax_dev, NULL);
erofs_fscache_unregister_fs(sb);
diff --git a/fs/smb/client/Makefile b/fs/smb/client/Makefile
index 0b07eb94c93b..e11985f2460b 100644
--- a/fs/smb/client/Makefile
+++ b/fs/smb/client/Makefile
@@ -12,7 +12,7 @@ cifs-y := trace.o cifsfs.o cifs_debug.o connect.o dir.o file.o \
smb2ops.o smb2maperror.o smb2transport.o \
smb2misc.o smb2pdu.o smb2inode.o smb2file.o cifsacl.o fs_context.o \
dns_resolve.o cifs_spnego_negtokeninit.asn1.o asn1.o \
- namespace.o
+ namespace.o reparse.o
$(obj)/asn1.o: $(obj)/cifs_spnego_negtokeninit.asn1.h
diff --git a/fs/smb/client/cached_dir.c b/fs/smb/client/cached_dir.c
index 567f718362c5..0ff2491c311d 100644
--- a/fs/smb/client/cached_dir.c
+++ b/fs/smb/client/cached_dir.c
@@ -145,21 +145,27 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
struct cached_fid *cfid;
struct cached_fids *cfids;
const char *npath;
+ int retries = 0, cur_sleep = 1;
if (tcon == NULL || tcon->cfids == NULL || tcon->nohandlecache ||
is_smb1_server(tcon->ses->server) || (dir_cache_timeout == 0))
return -EOPNOTSUPP;
ses = tcon->ses;
- server = cifs_pick_channel(ses);
cfids = tcon->cfids;
- if (!server->ops->new_lease_key)
- return -EIO;
-
if (cifs_sb->root == NULL)
return -ENOENT;
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ oplock = SMB2_OPLOCK_LEVEL_II;
+ server = cifs_pick_channel(ses);
+
+ if (!server->ops->new_lease_key)
+ return -EIO;
+
utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
if (!utf16_path)
return -ENOMEM;
@@ -237,6 +243,7 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
FILE_READ_EA,
.disposition = FILE_OPEN,
.fid = pfid,
+ .replay = !!(retries),
};
rc = SMB2_open_init(tcon, server,
@@ -269,6 +276,11 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
*/
cfid->has_lease = true;
+ if (retries) {
+ smb2_set_replay(server, &rqst[0]);
+ smb2_set_replay(server, &rqst[1]);
+ }
+
rc = compound_send_recv(xid, ses, server,
flags, 2, rqst,
resp_buftype, rsp_iov);
@@ -369,6 +381,10 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
}
kfree(utf16_path);
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
diff --git a/fs/smb/client/cifs_debug.c b/fs/smb/client/cifs_debug.c
index c53d516459fc..c71ae5c04306 100644
--- a/fs/smb/client/cifs_debug.c
+++ b/fs/smb/client/cifs_debug.c
@@ -280,6 +280,24 @@ static int cifs_debug_files_proc_show(struct seq_file *m, void *v)
return 0;
}
+static __always_inline const char *compression_alg_str(__le16 alg)
+{
+ switch (alg) {
+ case SMB3_COMPRESS_NONE:
+ return "NONE";
+ case SMB3_COMPRESS_LZNT1:
+ return "LZNT1";
+ case SMB3_COMPRESS_LZ77:
+ return "LZ77";
+ case SMB3_COMPRESS_LZ77_HUFF:
+ return "LZ77-Huffman";
+ case SMB3_COMPRESS_PATTERN:
+ return "Pattern_V1";
+ default:
+ return "invalid";
+ }
+}
+
static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
{
struct mid_q_entry *mid_entry;
@@ -425,12 +443,6 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
server->echo_credits,
server->oplock_credits,
server->dialect);
- if (server->compress_algorithm == SMB3_COMPRESS_LZNT1)
- seq_printf(m, " COMPRESS_LZNT1");
- else if (server->compress_algorithm == SMB3_COMPRESS_LZ77)
- seq_printf(m, " COMPRESS_LZ77");
- else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF)
- seq_printf(m, " COMPRESS_LZ77_HUFF");
if (server->sign)
seq_printf(m, " signed");
if (server->posix_ext_supported)
@@ -438,6 +450,8 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
if (server->nosharesock)
seq_printf(m, " nosharesock");
+ seq_printf(m, "\nServer capabilities: 0x%x", server->capabilities);
+
if (server->rdma)
seq_printf(m, "\nRDMA ");
seq_printf(m, "\nTCP status: %d Instance: %d"
@@ -460,6 +474,14 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
server->leaf_fullpath);
}
+ seq_puts(m, "\nCompression: ");
+ if (!server->compression.requested)
+ seq_puts(m, "disabled on mount");
+ else if (server->compression.enabled)
+ seq_printf(m, "enabled (%s)", compression_alg_str(server->compression.alg));
+ else
+ seq_puts(m, "disabled (not supported by this server)");
+
seq_printf(m, "\n\n\tSessions: ");
i = 0;
list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
@@ -777,14 +799,14 @@ static ssize_t name##_write(struct file *file, const char __user *buffer, \
size_t count, loff_t *ppos) \
{ \
int rc; \
- rc = kstrtoint_from_user(buffer, count, 10, & name); \
+ rc = kstrtoint_from_user(buffer, count, 10, &name); \
if (rc) \
return rc; \
return count; \
} \
static int name##_proc_show(struct seq_file *m, void *v) \
{ \
- seq_printf(m, "%d\n", name ); \
+ seq_printf(m, "%d\n", name); \
return 0; \
} \
static int name##_open(struct inode *inode, struct file *file) \
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index 44e2cc37a8b6..f1dcb86ab989 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -150,10 +150,6 @@ MODULE_PARM_DESC(disable_legacy_dialects, "To improve security it may be "
"vers=1.0 (CIFS/SMB1) and vers=2.0 are weaker"
" and less secure. Default: n/N/0");
-extern mempool_t *cifs_sm_req_poolp;
-extern mempool_t *cifs_req_poolp;
-extern mempool_t *cifs_mid_poolp;
-
struct workqueue_struct *cifsiod_wq;
struct workqueue_struct *decrypt_wq;
struct workqueue_struct *fileinfo_put_wq;
@@ -674,6 +670,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
seq_printf(s, ",backupgid=%u",
from_kgid_munged(&init_user_ns,
cifs_sb->ctx->backupgid));
+ seq_show_option(s, "reparse",
+ cifs_reparse_type_str(cifs_sb->ctx->reparse_type));
seq_printf(s, ",rsize=%u", cifs_sb->ctx->rsize);
seq_printf(s, ",wsize=%u", cifs_sb->ctx->wsize);
@@ -682,6 +680,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
seq_printf(s, ",rasize=%u", cifs_sb->ctx->rasize);
if (tcon->ses->server->min_offload)
seq_printf(s, ",esize=%u", tcon->ses->server->min_offload);
+ if (tcon->ses->server->retrans)
+ seq_printf(s, ",retrans=%u", tcon->ses->server->retrans);
seq_printf(s, ",echo_interval=%lu",
tcon->ses->server->echo_interval / HZ);
@@ -739,6 +739,8 @@ static void cifs_umount_begin(struct super_block *sb)
spin_lock(&cifs_tcp_ses_lock);
spin_lock(&tcon->tc_lock);
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_see_umount);
if ((tcon->tc_count > 1) || (tcon->status == TID_EXITING)) {
/* we have other mounts to same share or we have
already tried to umount this and woken up
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index b598c7ed497b..c146f83eba9b 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -49,6 +49,11 @@
*/
#define CIFS_DEF_ACTIMEO (1 * HZ)
+/*
+ * max sleep time before retry to server
+ */
+#define CIFS_MAX_SLEEP 2000
+
/*
* max attribute cache timeout (jiffies) - 2^30
*/
@@ -148,6 +153,24 @@ enum securityEnum {
Kerberos, /* Kerberos via SPNEGO */
};
+enum cifs_reparse_type {
+ CIFS_REPARSE_TYPE_NFS,
+ CIFS_REPARSE_TYPE_WSL,
+ CIFS_REPARSE_TYPE_DEFAULT = CIFS_REPARSE_TYPE_NFS,
+};
+
+static inline const char *cifs_reparse_type_str(enum cifs_reparse_type type)
+{
+ switch (type) {
+ case CIFS_REPARSE_TYPE_NFS:
+ return "nfs";
+ case CIFS_REPARSE_TYPE_WSL:
+ return "wsl";
+ default:
+ return "unknown";
+ }
+}
+
struct session_key {
unsigned int len;
char *response;
@@ -192,37 +215,30 @@ struct cifs_open_info_data {
bool symlink;
};
struct {
+ /* ioctl response buffer */
+ struct {
+ int buftype;
+ struct kvec iov;
+ } io;
__u32 tag;
union {
struct reparse_data_buffer *buf;
struct reparse_posix_data *posix;
};
} reparse;
+ struct {
+ __u8 eas[SMB2_WSL_MAX_QUERY_EA_RESP_SIZE];
+ unsigned int eas_len;
+ } wsl;
char *symlink_target;
+ struct cifs_sid posix_owner;
+ struct cifs_sid posix_group;
union {
struct smb2_file_all_info fi;
struct smb311_posix_qinfo posix_fi;
};
};
-static inline bool cifs_open_data_reparse(struct cifs_open_info_data *data)
-{
- struct smb2_file_all_info *fi = &data->fi;
- u32 attrs = le32_to_cpu(fi->Attributes);
- bool ret;
-
- ret = data->reparse_point || (attrs & ATTR_REPARSE);
- if (ret)
- attrs |= ATTR_REPARSE;
- fi->Attributes = cpu_to_le32(attrs);
- return ret;
-}
-
-static inline void cifs_free_open_info(struct cifs_open_info_data *data)
-{
- kfree(data->symlink_target);
-}
-
/*
*****************************************************************
* Except the CIFS PDUs themselves all the
@@ -367,7 +383,8 @@ struct smb_version_operations {
struct cifs_open_info_data *data);
/* set size by path */
int (*set_path_size)(const unsigned int, struct cifs_tcon *,
- const char *, __u64, struct cifs_sb_info *, bool);
+ const char *, __u64, struct cifs_sb_info *, bool,
+ struct dentry *);
/* set size by file handle */
int (*set_file_size)(const unsigned int, struct cifs_tcon *,
struct cifsFileInfo *, __u64, bool);
@@ -397,7 +414,7 @@ struct smb_version_operations {
struct cifs_sb_info *);
/* unlink file */
int (*unlink)(const unsigned int, struct cifs_tcon *, const char *,
- struct cifs_sb_info *);
+ struct cifs_sb_info *, struct dentry *);
/* open, rename and delete file */
int (*rename_pending_delete)(const char *, struct dentry *,
const unsigned int);
@@ -577,6 +594,12 @@ struct smb_version_operations {
int (*parse_reparse_point)(struct cifs_sb_info *cifs_sb,
struct kvec *rsp_iov,
struct cifs_open_info_data *data);
+ int (*create_reparse_symlink)(const unsigned int xid,
+ struct inode *inode,
+ struct dentry *dentry,
+ struct cifs_tcon *tcon,
+ const char *full_path,
+ const char *symname);
};
struct smb_version_values {
@@ -748,7 +771,12 @@ struct TCP_Server_Info {
unsigned int max_read;
unsigned int max_write;
unsigned int min_offload;
- __le16 compress_algorithm;
+ unsigned int retrans;
+ struct {
+ bool requested; /* "compress" mount option set*/
+ bool enabled; /* actually negotiated with server */
+ __le16 alg; /* preferred alg negotiated with server */
+ } compression;
__u16 signing_algorithm;
__le16 cipher_type;
/* save initital negprot hash */
@@ -1162,6 +1190,7 @@ struct cifs_fattr {
*/
struct cifs_tcon {
struct list_head tcon_list;
+ int debug_id; /* Debugging for tracing */
int tc_count;
struct list_head rlist; /* reconnect list */
spinlock_t tc_lock; /* protect anything here that is not protected */
@@ -1370,6 +1399,8 @@ struct cifs_open_parms {
struct cifs_fid *fid;
umode_t mode;
bool reconnect:1;
+ bool replay:1; /* indicates that this open is for a replay */
+ struct kvec *ea_cctx;
};
struct cifs_fid {
@@ -1411,6 +1442,7 @@ struct cifsFileInfo {
bool invalidHandle:1; /* file closed via session abend */
bool swapfile:1;
bool oplock_break_cancelled:1;
+ bool status_file_deleted:1; /* file has been deleted */
bool offload:1; /* offload final part of _put to a wq */
unsigned int oplock_epoch; /* epoch from the lease break */
__u32 oplock_level; /* oplock/lease level from the lease break */
@@ -1503,6 +1535,7 @@ struct cifs_writedata {
struct smbd_mr *mr;
#endif
struct cifs_credits credits;
+ bool replay;
};
/*
@@ -2080,6 +2113,8 @@ extern struct workqueue_struct *deferredclose_wq;
extern struct workqueue_struct *serverclose_wq;
extern __u32 cifs_lock_secret;
+extern mempool_t *cifs_sm_req_poolp;
+extern mempool_t *cifs_req_poolp;
extern mempool_t *cifs_mid_poolp;
/* Operations for different SMB versions */
@@ -2270,10 +2305,21 @@ static inline void cifs_sg_set_buf(struct sg_table *sgtable,
}
}
+#define CIFS_OPARMS(_cifs_sb, _tcon, _path, _da, _cd, _co, _mode) \
+ ((struct cifs_open_parms) { \
+ .tcon = _tcon, \
+ .path = _path, \
+ .desired_access = (_da), \
+ .disposition = (_cd), \
+ .create_options = cifs_create_options(_cifs_sb, (_co)), \
+ .mode = (_mode), \
+ .cifs_sb = _cifs_sb, \
+ })
+
struct smb2_compound_vars {
struct cifs_open_parms oparms;
- struct kvec rsp_iov[3];
- struct smb_rqst rqst[3];
+ struct kvec rsp_iov[MAX_COMPOUND];
+ struct smb_rqst rqst[MAX_COMPOUND];
struct kvec open_iov[SMB2_CREATE_IOV_SIZE];
struct kvec qi_iov;
struct kvec io_iov[SMB2_IOCTL_IOV_SIZE];
@@ -2281,6 +2327,7 @@ struct smb2_compound_vars {
struct kvec close_iov;
struct smb2_file_rename_info rename_info;
struct smb2_file_link_info link_info;
+ struct kvec ea_iov;
};
static inline bool cifs_ses_exiting(struct cifs_ses *ses)
diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h
index 1bdad33580b5..fbc358c09da3 100644
--- a/fs/smb/client/cifsproto.h
+++ b/fs/smb/client/cifsproto.h
@@ -210,11 +210,11 @@ extern struct inode *cifs_iget(struct super_block *sb,
int cifs_get_inode_info(struct inode **inode, const char *full_path,
struct cifs_open_info_data *data, struct super_block *sb, int xid,
const struct cifs_fid *fid);
-bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb,
- struct cifs_fattr *fattr,
- struct cifs_open_info_data *data);
-extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
- struct super_block *sb, unsigned int xid);
+extern int smb311_posix_get_inode_info(struct inode **inode,
+ const char *full_path,
+ struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid);
extern int cifs_get_inode_info_unix(struct inode **pinode,
const unsigned char *search_path,
struct super_block *sb, unsigned int xid);
@@ -294,12 +294,16 @@ extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,
const char *path);
+
+extern void cifs_mark_open_handles_for_deleted_file(struct inode *inode,
+ const char *path);
+
extern struct TCP_Server_Info *
cifs_get_tcp_session(struct smb3_fs_context *ctx,
struct TCP_Server_Info *primary_server);
extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
int from_reconnect);
-extern void cifs_put_tcon(struct cifs_tcon *tcon);
+extern void cifs_put_tcon(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace);
extern void cifs_release_automount_timer(void);
@@ -400,7 +404,8 @@ extern int CIFSSMBSetFileDisposition(const unsigned int xid,
__u32 pid_of_opener);
extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
const char *file_name, __u64 size,
- struct cifs_sb_info *cifs_sb, bool set_allocation);
+ struct cifs_sb_info *cifs_sb, bool set_allocation,
+ struct dentry *dentry);
extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
struct cifsFileInfo *cfile, __u64 size,
bool set_allocation);
@@ -436,7 +441,8 @@ extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
const struct nls_table *nls_codepage,
int remap_special_chars);
extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
- const char *name, struct cifs_sb_info *cifs_sb);
+ const char *name, struct cifs_sb_info *cifs_sb,
+ struct dentry *dentry);
int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
struct dentry *source_dentry,
const char *from_name, const char *to_name,
@@ -524,8 +530,9 @@ extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
extern struct cifs_ses *sesInfoAlloc(void);
extern void sesInfoFree(struct cifs_ses *);
-extern struct cifs_tcon *tcon_info_alloc(bool dir_leases_enabled);
-extern void tconInfoFree(struct cifs_tcon *);
+extern struct cifs_tcon *tcon_info_alloc(bool dir_leases_enabled,
+ enum smb3_tcon_ref_trace trace);
+extern void tconInfoFree(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace);
extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
__u32 *pexpected_response_sequence_number);
@@ -673,6 +680,9 @@ char *extract_sharename(const char *unc);
int parse_reparse_point(struct reparse_data_buffer *buf,
u32 plen, struct cifs_sb_info *cifs_sb,
bool unicode, struct cifs_open_info_data *data);
+int cifs_sfu_make_node(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev);
#ifdef CONFIG_CIFS_DFS_UPCALL
static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
@@ -712,8 +722,6 @@ static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
return options;
}
-struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
-void cifs_put_tcon_super(struct super_block *sb);
int cifs_wait_for_server_reconnect(struct TCP_Server_Info *server, bool retry);
/* Put references of @ses and its children */
@@ -762,4 +770,11 @@ static inline void release_mid(struct mid_q_entry *mid)
kref_put(&mid->refcount, __release_mid);
}
+static inline void cifs_free_open_info(struct cifs_open_info_data *data)
+{
+ kfree(data->symlink_target);
+ free_rsp_buf(data->reparse.io.buftype, data->reparse.io.iov.iov_base);
+ memset(data, 0, sizeof(*data));
+}
+
#endif /* _CIFSPROTO_H */
diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c
index e9e33b0b3ac4..301189ee1335 100644
--- a/fs/smb/client/cifssmb.c
+++ b/fs/smb/client/cifssmb.c
@@ -738,7 +738,7 @@ CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
int
CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
- struct cifs_sb_info *cifs_sb)
+ struct cifs_sb_info *cifs_sb, struct dentry *dentry)
{
DELETE_FILE_REQ *pSMB = NULL;
DELETE_FILE_RSP *pSMBr = NULL;
@@ -2700,11 +2700,12 @@ int cifs_query_reparse_point(const unsigned int xid,
u32 *tag, struct kvec *rsp,
int *rsp_buftype)
{
+ struct reparse_data_buffer *buf;
struct cifs_open_parms oparms;
TRANSACT_IOCTL_REQ *io_req = NULL;
TRANSACT_IOCTL_RSP *io_rsp = NULL;
struct cifs_fid fid;
- __u32 data_offset, data_count;
+ __u32 data_offset, data_count, len;
__u8 *start, *end;
int io_rsp_len;
int oplock = 0;
@@ -2774,7 +2775,16 @@ int cifs_query_reparse_point(const unsigned int xid,
goto error;
}
- *tag = le32_to_cpu(((struct reparse_data_buffer *)start)->ReparseTag);
+ data_count = le16_to_cpu(io_rsp->ByteCount);
+ buf = (struct reparse_data_buffer *)start;
+ len = sizeof(*buf);
+ if (data_count < len ||
+ data_count < le16_to_cpu(buf->ReparseDataLength) + len) {
+ rc = -EIO;
+ goto error;
+ }
+
+ *tag = le32_to_cpu(buf->ReparseTag);
rsp->iov_base = io_rsp;
rsp->iov_len = io_rsp_len;
*rsp_buftype = CIFS_LARGE_BUFFER;
@@ -4983,7 +4993,7 @@ CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
int
CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
const char *file_name, __u64 size, struct cifs_sb_info *cifs_sb,
- bool set_allocation)
+ bool set_allocation, struct dentry *dentry)
{
struct smb_com_transaction2_spi_req *pSMB = NULL;
struct smb_com_transaction2_spi_rsp *pSMBr = NULL;
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index cb3bed8364e0..7a16e12f5da8 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -52,9 +52,6 @@
#include "fs_context.h"
#include "cifs_swn.h"
-extern mempool_t *cifs_req_poolp;
-extern bool disable_legacy_dialects;
-
/* FIXME: should these be tunable? */
#define TLINK_ERROR_EXPIRE (1 * HZ)
#define TLINK_IDLE_EXPIRE (600 * HZ)
@@ -501,6 +498,7 @@ static int reconnect_target_unlocked(struct TCP_Server_Info *server, struct dfs_
static int reconnect_dfs_server(struct TCP_Server_Info *server)
{
struct dfs_cache_tgt_iterator *target_hint = NULL;
+
DFS_CACHE_TGT_LIST(tl);
int num_targets = 0;
int rc = 0;
@@ -763,6 +761,7 @@ cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
{
struct msghdr smb_msg = {};
struct kvec iov = {.iov_base = buf, .iov_len = to_read};
+
iov_iter_kvec(&smb_msg.msg_iter, ITER_DEST, &iov, 1, to_read);
return cifs_readv_from_socket(server, &smb_msg);
@@ -1418,11 +1417,13 @@ cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs)
case AF_INET: {
struct sockaddr_in *saddr4 = (struct sockaddr_in *)srcaddr;
struct sockaddr_in *vaddr4 = (struct sockaddr_in *)rhs;
+
return (saddr4->sin_addr.s_addr == vaddr4->sin_addr.s_addr);
}
case AF_INET6: {
struct sockaddr_in6 *saddr6 = (struct sockaddr_in6 *)srcaddr;
struct sockaddr_in6 *vaddr6 = (struct sockaddr_in6 *)rhs;
+
return (ipv6_addr_equal(&saddr6->sin6_addr, &vaddr6->sin6_addr)
&& saddr6->sin6_scope_id == vaddr6->sin6_scope_id);
}
@@ -1588,6 +1589,9 @@ static int match_server(struct TCP_Server_Info *server,
if (server->min_offload != ctx->min_offload)
return 0;
+ if (server->retrans != ctx->retrans)
+ return 0;
+
return 1;
}
@@ -1741,7 +1745,7 @@ cifs_get_tcp_session(struct smb3_fs_context *ctx,
tcp_ses->channel_sequence_num = 0; /* only tracked for primary channel */
tcp_ses->reconnect_instance = 1;
tcp_ses->lstrp = jiffies;
- tcp_ses->compress_algorithm = cpu_to_le16(ctx->compression);
+ tcp_ses->compression.requested = ctx->compress;
spin_lock_init(&tcp_ses->req_lock);
spin_lock_init(&tcp_ses->srv_lock);
spin_lock_init(&tcp_ses->mid_lock);
@@ -1812,6 +1816,7 @@ cifs_get_tcp_session(struct smb3_fs_context *ctx,
goto out_err_crypto_release;
}
tcp_ses->min_offload = ctx->min_offload;
+ tcp_ses->retrans = ctx->retrans;
/*
* at this point we are the only ones with the pointer
* to the struct since the kernel thread not created yet
@@ -1938,7 +1943,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb3_fs_context *ctx)
}
/* no need to setup directory caching on IPC share, so pass in false */
- tcon = tcon_info_alloc(false);
+ tcon = tcon_info_alloc(false, netfs_trace_tcon_ref_new_ipc);
if (tcon == NULL)
return -ENOMEM;
@@ -1955,7 +1960,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb3_fs_context *ctx)
if (rc) {
cifs_server_dbg(VFS, "failed to connect to IPC (rc=%d)\n", rc);
- tconInfoFree(tcon);
+ tconInfoFree(tcon, netfs_trace_tcon_ref_free_ipc_fail);
goto out;
}
@@ -2038,7 +2043,7 @@ void __cifs_put_smb_ses(struct cifs_ses *ses)
* files on session close, as specified in MS-SMB2 3.3.5.6 Receiving an
* SMB2 LOGOFF Request.
*/
- tconInfoFree(tcon);
+ tconInfoFree(tcon, netfs_trace_tcon_ref_free_ipc);
if (do_logoff) {
xid = get_xid();
rc = server->ops->logoff(xid, ses);
@@ -2427,6 +2432,8 @@ cifs_find_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
continue;
}
++tcon->tc_count;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_get_find);
spin_unlock(&tcon->tc_lock);
spin_unlock(&cifs_tcp_ses_lock);
return tcon;
@@ -2436,7 +2443,7 @@ cifs_find_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
}
void
-cifs_put_tcon(struct cifs_tcon *tcon)
+cifs_put_tcon(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace)
{
unsigned int xid;
struct cifs_ses *ses;
@@ -2452,6 +2459,7 @@ cifs_put_tcon(struct cifs_tcon *tcon)
cifs_dbg(FYI, "%s: tc_count=%d\n", __func__, tcon->tc_count);
spin_lock(&cifs_tcp_ses_lock);
spin_lock(&tcon->tc_lock);
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count - 1, trace);
if (--tcon->tc_count > 0) {
spin_unlock(&tcon->tc_lock);
spin_unlock(&cifs_tcp_ses_lock);
@@ -2488,7 +2496,7 @@ cifs_put_tcon(struct cifs_tcon *tcon)
_free_xid(xid);
cifs_fscache_release_super_cookie(tcon);
- tconInfoFree(tcon);
+ tconInfoFree(tcon, netfs_trace_tcon_ref_free);
cifs_put_smb_ses(ses);
}
@@ -2542,7 +2550,7 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
nohandlecache = ctx->nohandlecache;
else
nohandlecache = true;
- tcon = tcon_info_alloc(!nohandlecache);
+ tcon = tcon_info_alloc(!nohandlecache, netfs_trace_tcon_ref_new);
if (tcon == NULL) {
rc = -ENOMEM;
goto out_fail;
@@ -2607,8 +2615,8 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
rc = -EOPNOTSUPP;
goto out_fail;
} else {
- cifs_dbg(VFS, "Check vers= mount option. SMB3.11 "
- "disabled but required for POSIX extensions\n");
+ cifs_dbg(VFS,
+ "Check vers= mount option. SMB3.11 disabled but required for POSIX extensions\n");
rc = -EOPNOTSUPP;
goto out_fail;
}
@@ -2732,7 +2740,7 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
return tcon;
out_fail:
- tconInfoFree(tcon);
+ tconInfoFree(tcon, netfs_trace_tcon_ref_free_fail);
return ERR_PTR(rc);
}
@@ -2749,9 +2757,8 @@ cifs_put_tlink(struct tcon_link *tlink)
}
if (!IS_ERR(tlink_tcon(tlink)))
- cifs_put_tcon(tlink_tcon(tlink));
+ cifs_put_tcon(tlink_tcon(tlink), netfs_trace_tcon_ref_put_tlink);
kfree(tlink);
- return;
}
static int
@@ -2798,6 +2805,8 @@ compare_mount_options(struct super_block *sb, struct cifs_mnt_data *mnt_data)
return 0;
if (old->ctx->closetimeo != new->ctx->closetimeo)
return 0;
+ if (old->ctx->reparse_type != new->ctx->reparse_type)
+ return 0;
return 1;
}
@@ -2892,6 +2901,7 @@ static inline void
cifs_reclassify_socket4(struct socket *sock)
{
struct sock *sk = sock->sk;
+
BUG_ON(!sock_allow_reclassification(sk));
sock_lock_init_class_and_name(sk, "slock-AF_INET-CIFS",
&cifs_slock_key[0], "sk_lock-AF_INET-CIFS", &cifs_key[0]);
@@ -2901,6 +2911,7 @@ static inline void
cifs_reclassify_socket6(struct socket *sock)
{
struct sock *sk = sock->sk;
+
BUG_ON(!sock_allow_reclassification(sk));
sock_lock_init_class_and_name(sk, "slock-AF_INET6-CIFS",
&cifs_slock_key[1], "sk_lock-AF_INET6-CIFS", &cifs_key[1]);
@@ -2935,15 +2946,18 @@ static int
bind_socket(struct TCP_Server_Info *server)
{
int rc = 0;
+
if (server->srcaddr.ss_family != AF_UNSPEC) {
/* Bind to the specified local IP address */
struct socket *socket = server->ssocket;
+
rc = kernel_bind(socket,
(struct sockaddr *) &server->srcaddr,
sizeof(server->srcaddr));
if (rc < 0) {
struct sockaddr_in *saddr4;
struct sockaddr_in6 *saddr6;
+
saddr4 = (struct sockaddr_in *)&server->srcaddr;
saddr6 = (struct sockaddr_in6 *)&server->srcaddr;
if (saddr6->sin6_family == AF_INET6)
@@ -3173,6 +3187,7 @@ void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
if (!CIFSSMBQFSUnixInfo(xid, tcon)) {
__u64 cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
+
cifs_dbg(FYI, "unix caps which server supports %lld\n", cap);
/*
* check for reconnect case in which we do not
@@ -3307,7 +3322,7 @@ void cifs_mount_put_conns(struct cifs_mount_ctx *mnt_ctx)
int rc = 0;
if (mnt_ctx->tcon)
- cifs_put_tcon(mnt_ctx->tcon);
+ cifs_put_tcon(mnt_ctx->tcon, netfs_trace_tcon_ref_put_mnt_ctx);
else if (mnt_ctx->ses)
cifs_put_smb_ses(mnt_ctx->ses);
else if (mnt_ctx->server)
@@ -3698,7 +3713,7 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
smb_buffer_response = smb_buffer;
header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX,
- NULL /*no tid */ , 4 /*wct */ );
+ NULL /*no tid */, 4 /*wct */);
smb_buffer->Mid = get_next_mid(ses->server);
smb_buffer->Uid = ses->Suid;
@@ -3717,12 +3732,12 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
if (ses->server->sign)
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
- if (ses->capabilities & CAP_STATUS32) {
+ if (ses->capabilities & CAP_STATUS32)
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
- }
- if (ses->capabilities & CAP_DFS) {
+
+ if (ses->capabilities & CAP_DFS)
smb_buffer->Flags2 |= SMBFLG2_DFS;
- }
+
if (ses->capabilities & CAP_UNICODE) {
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
length =
diff --git a/fs/smb/client/dir.c b/fs/smb/client/dir.c
index 855468a32904..864b194dbaa0 100644
--- a/fs/smb/client/dir.c
+++ b/fs/smb/client/dir.c
@@ -627,11 +627,18 @@ int cifs_mknod(struct mnt_idmap *idmap, struct inode *inode,
goto mknod_out;
}
+ trace_smb3_mknod_enter(xid, tcon->ses->Suid, tcon->tid, full_path);
+
rc = tcon->ses->server->ops->make_node(xid, inode, direntry, tcon,
full_path, mode,
device_number);
mknod_out:
+ if (rc)
+ trace_smb3_mknod_err(xid, tcon->ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_mknod_done(xid, tcon->ses->Suid, tcon->tid);
+
free_dentry_path(page);
free_xid(xid);
cifs_put_tlink(tlink);
@@ -695,9 +702,10 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
full_path, d_inode(direntry));
again:
- if (pTcon->posix_extensions)
- rc = smb311_posix_get_inode_info(&newInode, full_path, parent_dir_inode->i_sb, xid);
- else if (pTcon->unix_ext) {
+ if (pTcon->posix_extensions) {
+ rc = smb311_posix_get_inode_info(&newInode, full_path, NULL,
+ parent_dir_inode->i_sb, xid);
+ } else if (pTcon->unix_ext) {
rc = cifs_get_inode_info_unix(&newInode, full_path,
parent_dir_inode->i_sb, xid);
} else {
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 53a8c633221b..7ea8c3cf70f6 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -1102,14 +1102,16 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
if (!is_interrupt_error(rc))
mapping_set_error(inode->i_mapping, rc);
- if (tcon->posix_extensions)
- rc = smb311_posix_get_inode_info(&inode, full_path, inode->i_sb, xid);
- else if (tcon->unix_ext)
+ if (tcon->posix_extensions) {
+ rc = smb311_posix_get_inode_info(&inode, full_path,
+ NULL, inode->i_sb, xid);
+ } else if (tcon->unix_ext) {
rc = cifs_get_inode_info_unix(&inode, full_path,
inode->i_sb, xid);
- else
+ } else {
rc = cifs_get_inode_info(&inode, full_path, NULL,
inode->i_sb, xid, NULL);
+ }
}
/*
* Else we are writing out data to server already and could deadlock if
@@ -1149,6 +1151,19 @@ void smb2_deferred_work_close(struct work_struct *work)
_cifsFileInfo_put(cfile, true, false);
}
+static bool
+smb2_can_defer_close(struct inode *inode, struct cifs_deferred_close *dclose)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsInodeInfo *cinode = CIFS_I(inode);
+
+ return (cifs_sb->ctx->closetimeo && cinode->lease_granted && dclose &&
+ (cinode->oplock == CIFS_CACHE_RHW_FLG ||
+ cinode->oplock == CIFS_CACHE_RH_FLG) &&
+ !test_bit(CIFS_INO_CLOSE_ON_LOCK, &cinode->flags));
+
+}
+
int cifs_close(struct inode *inode, struct file *file)
{
struct cifsFileInfo *cfile;
@@ -1162,10 +1177,8 @@ int cifs_close(struct inode *inode, struct file *file)
cfile = file->private_data;
file->private_data = NULL;
dclose = kmalloc(sizeof(struct cifs_deferred_close), GFP_KERNEL);
- if ((cifs_sb->ctx->closetimeo && cinode->oplock == CIFS_CACHE_RHW_FLG)
- && cinode->lease_granted &&
- !test_bit(CIFS_INO_CLOSE_ON_LOCK, &cinode->flags) &&
- dclose) {
+ if ((cfile->status_file_deleted == false) &&
+ (smb2_can_defer_close(inode, dclose))) {
if (test_and_clear_bit(CIFS_INO_MODIFIED_ATTR, &cinode->flags)) {
inode_set_mtime_to_ts(inode,
inode_set_ctime_current(inode));
@@ -3202,8 +3215,15 @@ static int cifs_write_end(struct file *file, struct address_space *mapping,
if (rc > 0) {
spin_lock(&inode->i_lock);
if (pos > inode->i_size) {
+ loff_t additional_blocks = (512 - 1 + copied) >> 9;
+
i_size_write(inode, pos);
- inode->i_blocks = (512 - 1 + pos) >> 9;
+ /*
+ * Estimate new allocation size based on the amount written.
+ * This will be updated from server on close (and on queryinfo)
+ */
+ inode->i_blocks = min_t(blkcnt_t, (512 - 1 + pos) >> 9,
+ inode->i_blocks + additional_blocks);
}
spin_unlock(&inode->i_lock);
}
@@ -3411,6 +3431,7 @@ cifs_resend_wdata(struct cifs_writedata *wdata, struct list_head *wdata_list,
if (wdata->cfile->invalidHandle)
rc = -EAGAIN;
else {
+ wdata->replay = true;
#ifdef CONFIG_CIFS_SMB_DIRECT
if (wdata->mr) {
wdata->mr->need_invalidate = true;
diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index 4d9e57be84db..3bbac925d076 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -139,6 +139,7 @@ const struct fs_parameter_spec smb3_fs_parameters[] = {
fsparam_u32("dir_mode", Opt_dirmode),
fsparam_u32("port", Opt_port),
fsparam_u32("min_enc_offload", Opt_min_enc_offload),
+ fsparam_u32("retrans", Opt_retrans),
fsparam_u32("esize", Opt_min_enc_offload),
fsparam_u32("bsize", Opt_blocksize),
fsparam_u32("rasize", Opt_rasize),
@@ -174,6 +175,7 @@ const struct fs_parameter_spec smb3_fs_parameters[] = {
fsparam_string("vers", Opt_vers),
fsparam_string("sec", Opt_sec),
fsparam_string("cache", Opt_cache),
+ fsparam_string("reparse", Opt_reparse),
/* Arguments that should be ignored */
fsparam_flag("guest", Opt_ignore),
@@ -296,6 +298,35 @@ cifs_parse_cache_flavor(struct fs_context *fc, char *value, struct smb3_fs_conte
return 0;
}
+static const match_table_t reparse_flavor_tokens = {
+ { Opt_reparse_default, "default" },
+ { Opt_reparse_nfs, "nfs" },
+ { Opt_reparse_wsl, "wsl" },
+ { Opt_reparse_err, NULL },
+};
+
+static int parse_reparse_flavor(struct fs_context *fc, char *value,
+ struct smb3_fs_context *ctx)
+{
+ substring_t args[MAX_OPT_ARGS];
+
+ switch (match_token(value, reparse_flavor_tokens, args)) {
+ case Opt_reparse_default:
+ ctx->reparse_type = CIFS_REPARSE_TYPE_DEFAULT;
+ break;
+ case Opt_reparse_nfs:
+ ctx->reparse_type = CIFS_REPARSE_TYPE_NFS;
+ break;
+ case Opt_reparse_wsl:
+ ctx->reparse_type = CIFS_REPARSE_TYPE_WSL;
+ break;
+ default:
+ cifs_errorf(fc, "bad reparse= option: %s\n", value);
+ return 1;
+ }
+ return 0;
+}
+
#define DUP_CTX_STR(field) \
do { \
if (ctx->field) { \
@@ -947,7 +978,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
switch (opt) {
case Opt_compress:
- ctx->compression = UNKNOWN_TYPE;
+ ctx->compress = true;
cifs_dbg(VFS,
"SMB3 compression support is experimental\n");
break;
@@ -1098,6 +1129,9 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
case Opt_min_enc_offload:
ctx->min_offload = result.uint_32;
break;
+ case Opt_retrans:
+ ctx->retrans = result.uint_32;
+ break;
case Opt_blocksize:
/*
* inode blocksize realistically should never need to be
@@ -1591,6 +1625,10 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
case Opt_rdma:
ctx->rdma = true;
break;
+ case Opt_reparse:
+ if (parse_reparse_flavor(fc, param->string, ctx))
+ goto cifs_parse_mount_err;
+ break;
}
/* case Opt_ignore: - is ignored as expected ... */
@@ -1678,6 +1716,9 @@ int smb3_init_fs_context(struct fs_context *fc)
ctx->backupuid_specified = false; /* no backup intent for a user */
ctx->backupgid_specified = false; /* no backup intent for a group */
+ ctx->retrans = 1;
+ ctx->reparse_type = CIFS_REPARSE_TYPE_DEFAULT;
+
/*
* short int override_uid = -1;
* short int override_gid = -1;
diff --git a/fs/smb/client/fs_context.h b/fs/smb/client/fs_context.h
index d7c090dbe75d..cf577ec0dd0a 100644
--- a/fs/smb/client/fs_context.h
+++ b/fs/smb/client/fs_context.h
@@ -41,6 +41,13 @@ enum {
Opt_cache_err
};
+enum cifs_reparse_parm {
+ Opt_reparse_default,
+ Opt_reparse_nfs,
+ Opt_reparse_wsl,
+ Opt_reparse_err
+};
+
enum cifs_sec_param {
Opt_sec_krb5,
Opt_sec_krb5i,
@@ -118,6 +125,7 @@ enum cifs_param {
Opt_file_mode,
Opt_dirmode,
Opt_min_enc_offload,
+ Opt_retrans,
Opt_blocksize,
Opt_rasize,
Opt_rsize,
@@ -148,6 +156,7 @@ enum cifs_param {
Opt_vers,
Opt_sec,
Opt_cache,
+ Opt_reparse,
/* Mount options to be ignored */
Opt_ignore,
@@ -249,6 +258,7 @@ struct smb3_fs_context {
unsigned int rsize;
unsigned int wsize;
unsigned int min_offload;
+ unsigned int retrans;
bool sockopt_tcp_nodelay:1;
/* attribute cache timemout for files and directories in jiffies */
unsigned long acregmax;
@@ -267,12 +277,13 @@ struct smb3_fs_context {
unsigned int max_credits; /* smb3 max_credits 10 < credits < 60000 */
unsigned int max_channels;
unsigned int max_cached_dirs;
- __u16 compression; /* compression algorithm 0xFFFF default 0=disabled */
+ bool compress; /* enable SMB2 messages (READ/WRITE) de/compression */
bool rootfs:1; /* if it's a SMB root file system */
bool witness:1; /* use witness protocol */
char *leaf_fullpath;
struct cifs_ses *dfs_root_ses;
bool dfs_automount:1; /* set for dfs automount only */
+ enum cifs_reparse_type reparse_type;
};
extern const struct fs_parameter_spec smb3_fs_parameters[];
diff --git a/fs/smb/client/fscache.c b/fs/smb/client/fscache.c
index ecabc4b40053..98c5eebdc7b2 100644
--- a/fs/smb/client/fscache.c
+++ b/fs/smb/client/fscache.c
@@ -94,6 +94,11 @@ int cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
}
pr_err("Cache volume key already in use (%s)\n", key);
vcookie = NULL;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_see_fscache_collision);
+ } else {
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_see_fscache_okay);
}
tcon->fscache = vcookie;
@@ -115,6 +120,8 @@ void cifs_fscache_release_super_cookie(struct cifs_tcon *tcon)
cifs_fscache_fill_volume_coherency(tcon, &cd);
fscache_relinquish_volume(tcon->fscache, &cd, false);
tcon->fscache = NULL;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_see_fscache_relinq);
}
void cifs_fscache_get_inode_cookie(struct inode *inode)
diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c
index fa6330d586e8..9cdbc3ccc1d1 100644
--- a/fs/smb/client/inode.c
+++ b/fs/smb/client/inode.c
@@ -26,6 +26,7 @@
#include "fs_context.h"
#include "cifs_ioctl.h"
#include "cached_dir.h"
+#include "reparse.h"
static void cifs_set_ops(struct inode *inode)
{
@@ -400,7 +401,6 @@ cifs_get_file_info_unix(struct file *filp)
cifs_unix_basic_to_fattr(&fattr, &find_data, cifs_sb);
} else if (rc == -EREMOTE) {
cifs_create_junction_fattr(&fattr, inode->i_sb);
- rc = 0;
} else
goto cifs_gfiunix_out;
@@ -666,8 +666,6 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,
/* Fill a cifs_fattr struct with info from POSIX info struct */
static void smb311_posix_info_to_fattr(struct cifs_fattr *fattr,
struct cifs_open_info_data *data,
- struct cifs_sid *owner,
- struct cifs_sid *group,
struct super_block *sb)
{
struct smb311_posix_qinfo *info = &data->posix_fi;
@@ -693,114 +691,43 @@ static void smb311_posix_info_to_fattr(struct cifs_fattr *fattr,
fattr->cf_mtime.tv_sec += tcon->ses->server->timeAdj;
}
+ /*
+ * The srv fs device id is overridden on network mount so setting
+ * @fattr->cf_rdev isn't needed here.
+ */
fattr->cf_eof = le64_to_cpu(info->EndOfFile);
fattr->cf_bytes = le64_to_cpu(info->AllocationSize);
fattr->cf_createtime = le64_to_cpu(info->CreationTime);
-
fattr->cf_nlink = le32_to_cpu(info->HardLinks);
fattr->cf_mode = (umode_t) le32_to_cpu(info->Mode);
- /* The srv fs device id is overridden on network mount so setting rdev isn't needed here */
- /* fattr->cf_rdev = le32_to_cpu(info->DeviceId); */
- if (data->symlink) {
- fattr->cf_mode |= S_IFLNK;
- fattr->cf_dtype = DT_LNK;
- fattr->cf_symlink_target = data->symlink_target;
- data->symlink_target = NULL;
- } else if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
+ if (cifs_open_data_reparse(data) &&
+ cifs_reparse_point_to_fattr(cifs_sb, fattr, data))
+ goto out_reparse;
+
+ fattr->cf_mode &= ~S_IFMT;
+ if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
fattr->cf_mode |= S_IFDIR;
fattr->cf_dtype = DT_DIR;
} else { /* file */
fattr->cf_mode |= S_IFREG;
fattr->cf_dtype = DT_REG;
}
- /* else if reparse point ... TODO: add support for FIFO and blk dev; special file types */
- sid_to_id(cifs_sb, owner, fattr, SIDOWNER);
- sid_to_id(cifs_sb, group, fattr, SIDGROUP);
+out_reparse:
+ if (S_ISLNK(fattr->cf_mode)) {
+ if (likely(data->symlink_target))
+ fattr->cf_eof = strnlen(data->symlink_target, PATH_MAX);
+ fattr->cf_symlink_target = data->symlink_target;
+ data->symlink_target = NULL;
+ }
+ sid_to_id(cifs_sb, &data->posix_owner, fattr, SIDOWNER);
+ sid_to_id(cifs_sb, &data->posix_group, fattr, SIDGROUP);
cifs_dbg(FYI, "POSIX query info: mode 0x%x uniqueid 0x%llx nlink %d\n",
fattr->cf_mode, fattr->cf_uniqueid, fattr->cf_nlink);
}
-static inline dev_t nfs_mkdev(struct reparse_posix_data *buf)
-{
- u64 v = le64_to_cpu(*(__le64 *)buf->DataBuffer);
-
- return MKDEV(v >> 32, v & 0xffffffff);
-}
-
-bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb,
- struct cifs_fattr *fattr,
- struct cifs_open_info_data *data)
-{
- struct reparse_posix_data *buf = data->reparse.posix;
- u32 tag = data->reparse.tag;
-
- if (tag == IO_REPARSE_TAG_NFS && buf) {
- switch (le64_to_cpu(buf->InodeType)) {
- case NFS_SPECFILE_CHR:
- fattr->cf_mode |= S_IFCHR | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_CHR;
- fattr->cf_rdev = nfs_mkdev(buf);
- break;
- case NFS_SPECFILE_BLK:
- fattr->cf_mode |= S_IFBLK | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_BLK;
- fattr->cf_rdev = nfs_mkdev(buf);
- break;
- case NFS_SPECFILE_FIFO:
- fattr->cf_mode |= S_IFIFO | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_FIFO;
- break;
- case NFS_SPECFILE_SOCK:
- fattr->cf_mode |= S_IFSOCK | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_SOCK;
- break;
- case NFS_SPECFILE_LNK:
- fattr->cf_mode = S_IFLNK | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_LNK;
- break;
- default:
- WARN_ON_ONCE(1);
- return false;
- }
- return true;
- }
-
- switch (tag) {
- case IO_REPARSE_TAG_LX_SYMLINK:
- fattr->cf_mode |= S_IFLNK | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_LNK;
- break;
- case IO_REPARSE_TAG_LX_FIFO:
- fattr->cf_mode |= S_IFIFO | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_FIFO;
- break;
- case IO_REPARSE_TAG_AF_UNIX:
- fattr->cf_mode |= S_IFSOCK | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_SOCK;
- break;
- case IO_REPARSE_TAG_LX_CHR:
- fattr->cf_mode |= S_IFCHR | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_CHR;
- break;
- case IO_REPARSE_TAG_LX_BLK:
- fattr->cf_mode |= S_IFBLK | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_BLK;
- break;
- case 0: /* SMB1 symlink */
- case IO_REPARSE_TAG_SYMLINK:
- case IO_REPARSE_TAG_NFS:
- fattr->cf_mode = S_IFLNK | cifs_sb->ctx->file_mode;
- fattr->cf_dtype = DT_LNK;
- break;
- default:
- return false;
- }
- return true;
-}
-
static void cifs_open_info_to_fattr(struct cifs_fattr *fattr,
struct cifs_open_info_data *data,
struct super_block *sb)
@@ -831,7 +758,10 @@ static void cifs_open_info_to_fattr(struct cifs_fattr *fattr,
fattr->cf_bytes = le64_to_cpu(info->AllocationSize);
fattr->cf_createtime = le64_to_cpu(info->CreationTime);
fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
+ fattr->cf_uid = cifs_sb->ctx->linux_uid;
+ fattr->cf_gid = cifs_sb->ctx->linux_gid;
+ fattr->cf_mode = cifs_sb->ctx->file_mode;
if (cifs_open_data_reparse(data) &&
cifs_reparse_point_to_fattr(cifs_sb, fattr, data))
goto out_reparse;
@@ -872,9 +802,6 @@ static void cifs_open_info_to_fattr(struct cifs_fattr *fattr,
fattr->cf_symlink_target = data->symlink_target;
data->symlink_target = NULL;
}
-
- fattr->cf_uid = cifs_sb->ctx->linux_uid;
- fattr->cf_gid = cifs_sb->ctx->linux_gid;
}
static int
@@ -888,9 +815,14 @@ cifs_get_file_info(struct file *filp)
struct cifsFileInfo *cfile = filp->private_data;
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
struct TCP_Server_Info *server = tcon->ses->server;
+ struct dentry *dentry = filp->f_path.dentry;
+ void *page = alloc_dentry_path();
+ const unsigned char *path;
- if (!server->ops->query_file_info)
+ if (!server->ops->query_file_info) {
+ free_dentry_path(page);
return -ENOSYS;
+ }
xid = get_xid();
rc = server->ops->query_file_info(xid, tcon, cfile, &data);
@@ -902,11 +834,17 @@ cifs_get_file_info(struct file *filp)
data.symlink = true;
data.reparse.tag = IO_REPARSE_TAG_SYMLINK;
}
+ path = build_path_from_dentry(dentry, page);
+ if (IS_ERR(path)) {
+ rc = PTR_ERR(path);
+ goto cgfi_exit;
+ }
cifs_open_info_to_fattr(&fattr, &data, inode->i_sb);
+ if (fattr.cf_flags & CIFS_FATTR_DELETE_PENDING)
+ cifs_mark_open_handles_for_deleted_file(inode, path);
break;
case -EREMOTE:
cifs_create_junction_fattr(&fattr, inode->i_sb);
- rc = 0;
break;
case -EOPNOTSUPP:
case -EINVAL:
@@ -932,6 +870,7 @@ cifs_get_file_info(struct file *filp)
rc = cifs_fattr_to_inode(inode, &fattr, false);
cgfi_exit:
cifs_free_open_info(&data);
+ free_dentry_path(page);
free_xid(xid);
return rc;
}
@@ -1078,6 +1017,9 @@ static int reparse_info_to_fattr(struct cifs_open_info_data *data,
&rsp_iov, &rsp_buftype);
if (!rc)
iov = &rsp_iov;
+ } else if (data->reparse.io.buftype != CIFS_NO_BUFFER &&
+ data->reparse.io.iov.iov_base) {
+ iov = &data->reparse.io.iov;
}
rc = -EOPNOTSUPP;
@@ -1094,16 +1036,20 @@ static int reparse_info_to_fattr(struct cifs_open_info_data *data,
rc = 0;
goto out;
default:
- if (data->symlink_target) {
+ /* Check for cached reparse point data */
+ if (data->symlink_target || data->reparse.buf) {
rc = 0;
- } else if (server->ops->parse_reparse_point) {
+ } else if (iov && server->ops->parse_reparse_point) {
rc = server->ops->parse_reparse_point(cifs_sb,
iov, data);
}
break;
}
- cifs_open_info_to_fattr(fattr, data, sb);
+ if (tcon->posix_extensions)
+ smb311_posix_info_to_fattr(fattr, data, sb);
+ else
+ cifs_open_info_to_fattr(fattr, data, sb);
out:
fattr->cf_cifstag = data->reparse.tag;
free_rsp_buf(rsp_buftype, rsp_iov.iov_base);
@@ -1159,6 +1105,9 @@ static int cifs_get_fattr(struct cifs_open_info_data *data,
} else {
cifs_open_info_to_fattr(fattr, data, sb);
}
+ if (!rc && *inode &&
+ (fattr->cf_flags & CIFS_FATTR_DELETE_PENDING))
+ cifs_mark_open_handles_for_deleted_file(*inode, full_path);
break;
case -EREMOTE:
/* DFS link, no metadata available on this server */
@@ -1293,31 +1242,34 @@ int cifs_get_inode_info(struct inode **inode,
return rc;
}
-static int smb311_posix_get_fattr(struct cifs_fattr *fattr,
+static int smb311_posix_get_fattr(struct cifs_open_info_data *data,
+ struct cifs_fattr *fattr,
const char *full_path,
struct super_block *sb,
const unsigned int xid)
{
- struct cifs_open_info_data data = {};
+ struct cifs_open_info_data tmp_data = {};
+ struct TCP_Server_Info *server;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifs_tcon *tcon;
struct tcon_link *tlink;
- struct cifs_sid owner, group;
int tmprc;
- int rc;
+ int rc = 0;
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink))
return PTR_ERR(tlink);
tcon = tlink_tcon(tlink);
+ server = tcon->ses->server;
/*
- * 1. Fetch file metadata
+ * 1. Fetch file metadata if not provided (data)
*/
-
- rc = smb311_posix_query_path_info(xid, tcon, cifs_sb,
- full_path, &data,
- &owner, &group);
+ if (!data) {
+ rc = server->ops->query_path_info(xid, tcon, cifs_sb,
+ full_path, &tmp_data);
+ data = &tmp_data;
+ }
/*
* 2. Convert it to internal cifs metadata (fattr)
@@ -1325,7 +1277,12 @@ static int smb311_posix_get_fattr(struct cifs_fattr *fattr,
switch (rc) {
case 0:
- smb311_posix_info_to_fattr(fattr, &data, &owner, &group, sb);
+ if (cifs_open_data_reparse(data)) {
+ rc = reparse_info_to_fattr(data, sb, xid, tcon,
+ full_path, fattr);
+ } else {
+ smb311_posix_info_to_fattr(fattr, data, sb);
+ }
break;
case -EREMOTE:
/* DFS link, no metadata available on this server */
@@ -1356,12 +1313,15 @@ static int smb311_posix_get_fattr(struct cifs_fattr *fattr,
out:
cifs_put_tlink(tlink);
- cifs_free_open_info(&data);
+ cifs_free_open_info(data);
return rc;
}
-int smb311_posix_get_inode_info(struct inode **inode, const char *full_path,
- struct super_block *sb, const unsigned int xid)
+int smb311_posix_get_inode_info(struct inode **inode,
+ const char *full_path,
+ struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid)
{
struct cifs_fattr fattr = {};
int rc;
@@ -1371,11 +1331,13 @@ int smb311_posix_get_inode_info(struct inode **inode, const char *full_path,
return 0;
}
- rc = smb311_posix_get_fattr(&fattr, full_path, sb, xid);
+ rc = smb311_posix_get_fattr(data, &fattr, full_path, sb, xid);
if (rc)
goto out;
rc = update_inode_info(sb, &fattr, inode);
+ if (!rc && fattr.cf_flags & CIFS_FATTR_DELETE_PENDING)
+ cifs_mark_open_handles_for_deleted_file(*inode, full_path);
out:
kfree(fattr.cf_symlink_target);
return rc;
@@ -1521,7 +1483,7 @@ struct inode *cifs_root_iget(struct super_block *sb)
convert_delimiter(path, CIFS_DIR_SEP(cifs_sb));
if (tcon->posix_extensions)
- rc = smb311_posix_get_fattr(&fattr, path, sb, xid);
+ rc = smb311_posix_get_fattr(NULL, &fattr, path, sb, xid);
else
rc = cifs_get_fattr(NULL, sb, xid, NULL, &fattr, &inode, path);
@@ -1539,6 +1501,9 @@ struct inode *cifs_root_iget(struct super_block *sb)
goto out;
}
+ if (!rc && fattr.cf_flags & CIFS_FATTR_DELETE_PENDING)
+ cifs_mark_open_handles_for_deleted_file(inode, path);
+
if (rc && tcon->pipe) {
cifs_dbg(FYI, "ipc connection - fake read inode\n");
spin_lock(&inode->i_lock);
@@ -1825,20 +1790,24 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry)
goto psx_del_no_retry;
}
- rc = server->ops->unlink(xid, tcon, full_path, cifs_sb);
+ rc = server->ops->unlink(xid, tcon, full_path, cifs_sb, dentry);
psx_del_no_retry:
if (!rc) {
- if (inode)
+ if (inode) {
+ cifs_mark_open_handles_for_deleted_file(inode, full_path);
cifs_drop_nlink(inode);
+ }
} else if (rc == -ENOENT) {
d_drop(dentry);
} else if (rc == -EBUSY) {
if (server->ops->rename_pending_delete) {
rc = server->ops->rename_pending_delete(full_path,
dentry, xid);
- if (rc == 0)
+ if (rc == 0) {
+ cifs_mark_open_handles_for_deleted_file(inode, full_path);
cifs_drop_nlink(inode);
+ }
}
} else if ((rc == -EACCES) && (dosattr == 0) && inode) {
attrs = kzalloc(sizeof(*attrs), GFP_KERNEL);
@@ -1894,16 +1863,18 @@ cifs_mkdir_qinfo(struct inode *parent, struct dentry *dentry, umode_t mode,
int rc = 0;
struct inode *inode = NULL;
- if (tcon->posix_extensions)
- rc = smb311_posix_get_inode_info(&inode, full_path, parent->i_sb, xid);
+ if (tcon->posix_extensions) {
+ rc = smb311_posix_get_inode_info(&inode, full_path,
+ NULL, parent->i_sb, xid);
#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
- else if (tcon->unix_ext)
+ } else if (tcon->unix_ext) {
rc = cifs_get_inode_info_unix(&inode, full_path, parent->i_sb,
xid);
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
- else
+ } else {
rc = cifs_get_inode_info(&inode, full_path, NULL, parent->i_sb,
xid, NULL);
+ }
if (rc)
return rc;
@@ -2585,13 +2556,15 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry)
dentry, cifs_get_time(dentry), jiffies);
again:
- if (cifs_sb_master_tcon(CIFS_SB(sb))->posix_extensions)
- rc = smb311_posix_get_inode_info(&inode, full_path, sb, xid);
- else if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext)
+ if (cifs_sb_master_tcon(CIFS_SB(sb))->posix_extensions) {
+ rc = smb311_posix_get_inode_info(&inode, full_path,
+ NULL, sb, xid);
+ } else if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext) {
rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
- else
+ } else {
rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
xid, NULL);
+ }
if (rc == -EAGAIN && count++ < 10)
goto again;
out:
@@ -2772,7 +2745,7 @@ void cifs_setsize(struct inode *inode, loff_t offset)
static int
cifs_set_file_size(struct inode *inode, struct iattr *attrs,
- unsigned int xid, const char *full_path)
+ unsigned int xid, const char *full_path, struct dentry *dentry)
{
int rc;
struct cifsFileInfo *open_file;
@@ -2823,7 +2796,7 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
*/
if (server->ops->set_path_size)
rc = server->ops->set_path_size(xid, tcon, full_path,
- attrs->ia_size, cifs_sb, false);
+ attrs->ia_size, cifs_sb, false, dentry);
else
rc = -ENOSYS;
cifs_dbg(FYI, "SetEOF by path (setattrs) rc = %d\n", rc);
@@ -2913,7 +2886,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
rc = 0;
if (attrs->ia_valid & ATTR_SIZE) {
- rc = cifs_set_file_size(inode, attrs, xid, full_path);
+ rc = cifs_set_file_size(inode, attrs, xid, full_path, direntry);
if (rc != 0)
goto out;
}
@@ -3079,7 +3052,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
}
if (attrs->ia_valid & ATTR_SIZE) {
- rc = cifs_set_file_size(inode, attrs, xid, full_path);
+ rc = cifs_set_file_size(inode, attrs, xid, full_path, direntry);
if (rc != 0)
goto cifs_setattr_exit;
}
diff --git a/fs/smb/client/ioctl.c b/fs/smb/client/ioctl.c
index 204dd7c47126..855ac5a62edf 100644
--- a/fs/smb/client/ioctl.c
+++ b/fs/smb/client/ioctl.c
@@ -143,6 +143,7 @@ static long smb_mnt_get_fsinfo(unsigned int xid, struct cifs_tcon *tcon,
fsinf->version = 1;
fsinf->protocol_id = tcon->ses->server->vals->protocol_id;
+ fsinf->tcon_flags = tcon->Flags;
fsinf->device_characteristics =
le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics);
fsinf->device_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
@@ -348,6 +349,11 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
xid = get_xid();
cifs_dbg(FYI, "cifs ioctl 0x%x\n", command);
+ if (pSMBFile == NULL)
+ trace_smb3_ioctl(xid, 0, command);
+ else
+ trace_smb3_ioctl(xid, pSMBFile->fid.persistent_fid, command);
+
switch (command) {
case FS_IOC_GETFLAGS:
if (pSMBFile == NULL)
diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c
index 6c4ae52ddc04..d86da949a919 100644
--- a/fs/smb/client/link.c
+++ b/fs/smb/client/link.c
@@ -42,23 +42,11 @@ symlink_hash(unsigned int link_len, const char *link_str, u8 *md5_hash)
rc = cifs_alloc_hash("md5", &md5);
if (rc)
- goto symlink_hash_err;
+ return rc;
- rc = crypto_shash_init(md5);
- if (rc) {
- cifs_dbg(VFS, "%s: Could not init md5 shash\n", __func__);
- goto symlink_hash_err;
- }
- rc = crypto_shash_update(md5, link_str, link_len);
- if (rc) {
- cifs_dbg(VFS, "%s: Could not update with link_str\n", __func__);
- goto symlink_hash_err;
- }
- rc = crypto_shash_final(md5, md5_hash);
+ rc = crypto_shash_digest(md5, link_str, link_len, md5_hash);
if (rc)
cifs_dbg(VFS, "%s: Could not generate md5 hash\n", __func__);
-
-symlink_hash_err:
cifs_free_hash(&md5);
return rc;
}
@@ -581,6 +569,7 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
int rc = -EOPNOTSUPP;
unsigned int xid;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct TCP_Server_Info *server;
struct tcon_link *tlink;
struct cifs_tcon *pTcon;
const char *full_path;
@@ -602,6 +591,7 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
goto symlink_exit;
}
pTcon = tlink_tcon(tlink);
+ server = cifs_pick_channel(pTcon->ses);
full_path = build_path_from_dentry(direntry, page);
if (IS_ERR(full_path)) {
@@ -613,27 +603,32 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
cifs_dbg(FYI, "symname is %s\n", symname);
/* BB what if DFS and this volume is on different share? BB */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) {
rc = create_mf_symlink(xid, pTcon, cifs_sb, full_path, symname);
#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
- else if (pTcon->unix_ext)
+ } else if (pTcon->unix_ext) {
rc = CIFSUnixCreateSymLink(xid, pTcon, full_path, symname,
cifs_sb->local_nls,
cifs_remap(cifs_sb));
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
- /* else
- rc = CIFSCreateReparseSymLink(xid, pTcon, fromName, toName,
- cifs_sb_target->local_nls); */
+ } else if (server->ops->create_reparse_symlink) {
+ rc = server->ops->create_reparse_symlink(xid, inode, direntry,
+ pTcon, full_path,
+ symname);
+ goto symlink_exit;
+ }
if (rc == 0) {
- if (pTcon->posix_extensions)
- rc = smb311_posix_get_inode_info(&newinode, full_path, inode->i_sb, xid);
- else if (pTcon->unix_ext)
+ if (pTcon->posix_extensions) {
+ rc = smb311_posix_get_inode_info(&newinode, full_path,
+ NULL, inode->i_sb, xid);
+ } else if (pTcon->unix_ext) {
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb, xid);
- else
+ } else {
rc = cifs_get_inode_info(&newinode, full_path, NULL,
inode->i_sb, xid, NULL);
+ }
if (rc != 0) {
cifs_dbg(FYI, "Create symlink ok, getinodeinfo fail rc = %d\n",
diff --git a/fs/smb/client/misc.c b/fs/smb/client/misc.c
index d56959d02e36..07c468ddb88a 100644
--- a/fs/smb/client/misc.c
+++ b/fs/smb/client/misc.c
@@ -27,9 +27,6 @@
#include "fs_context.h"
#include "cached_dir.h"
-extern mempool_t *cifs_sm_req_poolp;
-extern mempool_t *cifs_req_poolp;
-
/* The xid serves as a useful identifier for each incoming vfs request,
in a similar way to the mid which is useful to track each sent smb,
and CurrentXid can also provide a running counter (although it
@@ -114,9 +111,10 @@ sesInfoFree(struct cifs_ses *buf_to_free)
}
struct cifs_tcon *
-tcon_info_alloc(bool dir_leases_enabled)
+tcon_info_alloc(bool dir_leases_enabled, enum smb3_tcon_ref_trace trace)
{
struct cifs_tcon *ret_buf;
+ static atomic_t tcon_debug_id;
ret_buf = kzalloc(sizeof(*ret_buf), GFP_KERNEL);
if (!ret_buf)
@@ -133,7 +131,8 @@ tcon_info_alloc(bool dir_leases_enabled)
atomic_inc(&tconInfoAllocCount);
ret_buf->status = TID_NEW;
- ++ret_buf->tc_count;
+ ret_buf->debug_id = atomic_inc_return(&tcon_debug_id);
+ ret_buf->tc_count = 1;
spin_lock_init(&ret_buf->tc_lock);
INIT_LIST_HEAD(&ret_buf->openFileList);
INIT_LIST_HEAD(&ret_buf->tcon_list);
@@ -145,17 +144,19 @@ tcon_info_alloc(bool dir_leases_enabled)
#ifdef CONFIG_CIFS_FSCACHE
mutex_init(&ret_buf->fscache_lock);
#endif
+ trace_smb3_tcon_ref(ret_buf->debug_id, ret_buf->tc_count, trace);
return ret_buf;
}
void
-tconInfoFree(struct cifs_tcon *tcon)
+tconInfoFree(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace)
{
if (tcon == NULL) {
cifs_dbg(FYI, "Null buffer passed to tconInfoFree\n");
return;
}
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count, trace);
free_cached_dirs(tcon->cfids);
atomic_dec(&tconInfoAllocCount);
kfree(tcon->nativeFileSystem);
@@ -853,6 +854,40 @@ cifs_close_deferred_file_under_dentry(struct cifs_tcon *tcon, const char *path)
free_dentry_path(page);
}
+/*
+ * If a dentry has been deleted, all corresponding open handles should know that
+ * so that we do not defer close them.
+ */
+void cifs_mark_open_handles_for_deleted_file(struct inode *inode,
+ const char *path)
+{
+ struct cifsFileInfo *cfile;
+ void *page;
+ const char *full_path;
+ struct cifsInodeInfo *cinode = CIFS_I(inode);
+
+ page = alloc_dentry_path();
+ spin_lock(&cinode->open_file_lock);
+
+ /*
+ * note: we need to construct path from dentry and compare only if the
+ * inode has any hardlinks. When number of hardlinks is 1, we can just
+ * mark all open handles since they are going to be from the same file.
+ */
+ if (inode->i_nlink > 1) {
+ list_for_each_entry(cfile, &cinode->openFileList, flist) {
+ full_path = build_path_from_dentry(cfile->dentry, page);
+ if (!IS_ERR(full_path) && strcmp(full_path, path) == 0)
+ cfile->status_file_deleted = true;
+ }
+ } else {
+ list_for_each_entry(cfile, &cinode->openFileList, flist)
+ cfile->status_file_deleted = true;
+ }
+ spin_unlock(&cinode->open_file_lock);
+ free_dentry_path(page);
+}
+
/* parses DFS referral V3 structure
* caller is responsible for freeing target_nodes
* returns:
diff --git a/fs/smb/client/ntlmssp.h b/fs/smb/client/ntlmssp.h
index 2c5dde2ece58..875de43b72de 100644
--- a/fs/smb/client/ntlmssp.h
+++ b/fs/smb/client/ntlmssp.h
@@ -133,8 +133,8 @@ typedef struct _AUTHENTICATE_MESSAGE {
SECURITY_BUFFER WorkstationName;
SECURITY_BUFFER SessionKey;
__le32 NegotiateFlags;
- /* SECURITY_BUFFER for version info not present since we
- do not set the version is present flag */
+ struct ntlmssp_version Version;
+ /* SECURITY_BUFFER */
char UserString[];
} __attribute__((packed)) AUTHENTICATE_MESSAGE, *PAUTHENTICATE_MESSAGE;
diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c
index 56033e4e4bae..06111d9f3950 100644
--- a/fs/smb/client/readdir.c
+++ b/fs/smb/client/readdir.c
@@ -22,6 +22,7 @@
#include "smb2proto.h"
#include "fs_context.h"
#include "cached_dir.h"
+#include "reparse.h"
/*
* To be safe - for UCS to UTF-8 with strings loaded with the rare long
@@ -55,23 +56,6 @@ static inline void dump_cifs_file_struct(struct file *file, char *label)
}
#endif /* DEBUG2 */
-/*
- * Match a reparse point inode if reparse tag and ctime haven't changed.
- *
- * Windows Server updates ctime of reparse points when their data have changed.
- * The server doesn't allow changing reparse tags from existing reparse points,
- * though it's worth checking.
- */
-static inline bool reparse_inode_match(struct inode *inode,
- struct cifs_fattr *fattr)
-{
- struct timespec64 ctime = inode_get_ctime(inode);
-
- return (CIFS_I(inode)->cifsAttrs & ATTR_REPARSE) &&
- CIFS_I(inode)->reparse_tag == fattr->cf_cifstag &&
- timespec64_equal(&ctime, &fattr->cf_ctime);
-}
-
/*
* Attempt to preload the dcache with the results from the FIND_FIRST/NEXT
*
@@ -133,14 +117,16 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name,
* Query dir responses don't provide enough
* information about reparse points other than
* their reparse tags. Save an invalidation by
- * not clobbering the existing mode, size and
- * symlink target (if any) when reparse tag and
- * ctime haven't changed.
+ * not clobbering some existing attributes when
+ * reparse tag and ctime haven't changed.
*/
rc = 0;
if (fattr->cf_cifsattrs & ATTR_REPARSE) {
if (likely(reparse_inode_match(inode, fattr))) {
fattr->cf_mode = inode->i_mode;
+ fattr->cf_rdev = inode->i_rdev;
+ fattr->cf_uid = inode->i_uid;
+ fattr->cf_gid = inode->i_gid;
fattr->cf_eof = CIFS_I(inode)->server_eof;
fattr->cf_symlink_target = NULL;
} else {
@@ -647,10 +633,10 @@ static int cifs_entry_is_dot(struct cifs_dirent *de, bool is_unicode)
static int is_dir_changed(struct file *file)
{
struct inode *inode = file_inode(file);
- struct cifsInodeInfo *cifsInfo = CIFS_I(inode);
+ struct cifsInodeInfo *cifs_inode_info = CIFS_I(inode);
- if (cifsInfo->time == 0)
- return 1; /* directory was changed, perhaps due to unlink */
+ if (cifs_inode_info->time == 0)
+ return 1; /* directory was changed, e.g. unlink or new file */
else
return 0;
diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c
new file mode 100644
index 000000000000..a0ffbda90733
--- /dev/null
+++ b/fs/smb/client/reparse.c
@@ -0,0 +1,532 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2024 Paulo Alcantara <pc@xxxxxxxxxxxxx>
+ */
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include "cifsglob.h"
+#include "smb2proto.h"
+#include "cifsproto.h"
+#include "cifs_unicode.h"
+#include "cifs_debug.h"
+#include "fs_context.h"
+#include "reparse.h"
+
+int smb2_create_reparse_symlink(const unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, const char *symname)
+{
+ struct reparse_symlink_data_buffer *buf = NULL;
+ struct cifs_open_info_data data;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct inode *new;
+ struct kvec iov;
+ __le16 *path;
+ char *sym, sep = CIFS_DIR_SEP(cifs_sb);
+ u16 len, plen;
+ int rc = 0;
+
+ sym = kstrdup(symname, GFP_KERNEL);
+ if (!sym)
+ return -ENOMEM;
+
+ data = (struct cifs_open_info_data) {
+ .reparse_point = true,
+ .reparse = { .tag = IO_REPARSE_TAG_SYMLINK, },
+ .symlink_target = sym,
+ };
+
+ convert_delimiter(sym, sep);
+ path = cifs_convert_path_to_utf16(sym, cifs_sb);
+ if (!path) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ plen = 2 * UniStrnlen((wchar_t *)path, PATH_MAX);
+ len = sizeof(*buf) + plen * 2;
+ buf = kzalloc(len, GFP_KERNEL);
+ if (!buf) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ buf->ReparseTag = cpu_to_le32(IO_REPARSE_TAG_SYMLINK);
+ buf->ReparseDataLength = cpu_to_le16(len - sizeof(struct reparse_data_buffer));
+ buf->SubstituteNameOffset = cpu_to_le16(plen);
+ buf->SubstituteNameLength = cpu_to_le16(plen);
+ memcpy(&buf->PathBuffer[plen], path, plen);
+ buf->PrintNameOffset = 0;
+ buf->PrintNameLength = cpu_to_le16(plen);
+ memcpy(buf->PathBuffer, path, plen);
+ buf->Flags = cpu_to_le32(*symname != '/' ? SYMLINK_FLAG_RELATIVE : 0);
+ if (*sym != sep)
+ buf->Flags = cpu_to_le32(SYMLINK_FLAG_RELATIVE);
+
+ convert_delimiter(sym, '/');
+ iov.iov_base = buf;
+ iov.iov_len = len;
+ new = smb2_get_reparse_inode(&data, inode->i_sb, xid,
+ tcon, full_path, &iov, NULL);
+ if (!IS_ERR(new))
+ d_instantiate(dentry, new);
+ else
+ rc = PTR_ERR(new);
+out:
+ kfree(path);
+ cifs_free_open_info(&data);
+ kfree(buf);
+ return rc;
+}
+
+static int nfs_set_reparse_buf(struct reparse_posix_data *buf,
+ mode_t mode, dev_t dev,
+ struct kvec *iov)
+{
+ u64 type;
+ u16 len, dlen;
+
+ len = sizeof(*buf);
+
+ switch ((type = reparse_mode_nfs_type(mode))) {
+ case NFS_SPECFILE_BLK:
+ case NFS_SPECFILE_CHR:
+ dlen = sizeof(__le64);
+ break;
+ case NFS_SPECFILE_FIFO:
+ case NFS_SPECFILE_SOCK:
+ dlen = 0;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ buf->ReparseTag = cpu_to_le32(IO_REPARSE_TAG_NFS);
+ buf->Reserved = 0;
+ buf->InodeType = cpu_to_le64(type);
+ buf->ReparseDataLength = cpu_to_le16(len + dlen -
+ sizeof(struct reparse_data_buffer));
+ *(__le64 *)buf->DataBuffer = cpu_to_le64(((u64)MAJOR(dev) << 32) |
+ MINOR(dev));
+ iov->iov_base = buf;
+ iov->iov_len = len + dlen;
+ return 0;
+}
+
+static int mknod_nfs(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev)
+{
+ struct cifs_open_info_data data;
+ struct reparse_posix_data *p;
+ struct inode *new;
+ struct kvec iov;
+ __u8 buf[sizeof(*p) + sizeof(__le64)];
+ int rc;
+
+ p = (struct reparse_posix_data *)buf;
+ rc = nfs_set_reparse_buf(p, mode, dev, &iov);
+ if (rc)
+ return rc;
+
+ data = (struct cifs_open_info_data) {
+ .reparse_point = true,
+ .reparse = { .tag = IO_REPARSE_TAG_NFS, .posix = p, },
+ };
+
+ new = smb2_get_reparse_inode(&data, inode->i_sb, xid,
+ tcon, full_path, &iov, NULL);
+ if (!IS_ERR(new))
+ d_instantiate(dentry, new);
+ else
+ rc = PTR_ERR(new);
+ cifs_free_open_info(&data);
+ return rc;
+}
+
+static int wsl_set_reparse_buf(struct reparse_data_buffer *buf,
+ mode_t mode, struct kvec *iov)
+{
+ u32 tag;
+
+ switch ((tag = reparse_mode_wsl_tag(mode))) {
+ case IO_REPARSE_TAG_LX_BLK:
+ case IO_REPARSE_TAG_LX_CHR:
+ case IO_REPARSE_TAG_LX_FIFO:
+ case IO_REPARSE_TAG_AF_UNIX:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ buf->ReparseTag = cpu_to_le32(tag);
+ buf->Reserved = 0;
+ buf->ReparseDataLength = 0;
+ iov->iov_base = buf;
+ iov->iov_len = sizeof(*buf);
+ return 0;
+}
+
+static struct smb2_create_ea_ctx *ea_create_context(u32 dlen, size_t *cc_len)
+{
+ struct smb2_create_ea_ctx *cc;
+
+ *cc_len = round_up(sizeof(*cc) + dlen, 8);
+ cc = kzalloc(*cc_len, GFP_KERNEL);
+ if (!cc)
+ return ERR_PTR(-ENOMEM);
+
+ cc->ctx.NameOffset = cpu_to_le16(offsetof(struct smb2_create_ea_ctx,
+ name));
+ cc->ctx.NameLength = cpu_to_le16(4);
+ memcpy(cc->name, SMB2_CREATE_EA_BUFFER, strlen(SMB2_CREATE_EA_BUFFER));
+ cc->ctx.DataOffset = cpu_to_le16(offsetof(struct smb2_create_ea_ctx, ea));
+ cc->ctx.DataLength = cpu_to_le32(dlen);
+ return cc;
+}
+
+struct wsl_xattr {
+ const char *name;
+ __le64 value;
+ u16 size;
+ u32 next;
+};
+
+static int wsl_set_xattrs(struct inode *inode, umode_t _mode,
+ dev_t _dev, struct kvec *iov)
+{
+ struct smb2_file_full_ea_info *ea;
+ struct smb2_create_ea_ctx *cc;
+ struct smb3_fs_context *ctx = CIFS_SB(inode->i_sb)->ctx;
+ __le64 uid = cpu_to_le64(from_kuid(current_user_ns(), ctx->linux_uid));
+ __le64 gid = cpu_to_le64(from_kgid(current_user_ns(), ctx->linux_gid));
+ __le64 dev = cpu_to_le64(((u64)MINOR(_dev) << 32) | MAJOR(_dev));
+ __le64 mode = cpu_to_le64(_mode);
+ struct wsl_xattr xattrs[] = {
+ { .name = SMB2_WSL_XATTR_UID, .value = uid, .size = SMB2_WSL_XATTR_UID_SIZE, },
+ { .name = SMB2_WSL_XATTR_GID, .value = gid, .size = SMB2_WSL_XATTR_GID_SIZE, },
+ { .name = SMB2_WSL_XATTR_MODE, .value = mode, .size = SMB2_WSL_XATTR_MODE_SIZE, },
+ { .name = SMB2_WSL_XATTR_DEV, .value = dev, .size = SMB2_WSL_XATTR_DEV_SIZE, },
+ };
+ size_t cc_len;
+ u32 dlen = 0, next = 0;
+ int i, num_xattrs;
+ u8 name_size = SMB2_WSL_XATTR_NAME_LEN + 1;
+
+ memset(iov, 0, sizeof(*iov));
+
+ /* Exclude $LXDEV xattr for sockets and fifos */
+ if (S_ISSOCK(_mode) || S_ISFIFO(_mode))
+ num_xattrs = ARRAY_SIZE(xattrs) - 1;
+ else
+ num_xattrs = ARRAY_SIZE(xattrs);
+
+ for (i = 0; i < num_xattrs; i++) {
+ xattrs[i].next = ALIGN(sizeof(*ea) + name_size +
+ xattrs[i].size, 4);
+ dlen += xattrs[i].next;
+ }
+
+ cc = ea_create_context(dlen, &cc_len);
+ if (IS_ERR(cc))
+ return PTR_ERR(cc);
+
+ ea = &cc->ea;
+ for (i = 0; i < num_xattrs; i++) {
+ ea = (void *)((u8 *)ea + next);
+ next = xattrs[i].next;
+ ea->next_entry_offset = cpu_to_le32(next);
+
+ ea->ea_name_length = name_size - 1;
+ ea->ea_value_length = cpu_to_le16(xattrs[i].size);
+ memcpy(ea->ea_data, xattrs[i].name, name_size);
+ memcpy(&ea->ea_data[name_size],
+ &xattrs[i].value, xattrs[i].size);
+ }
+ ea->next_entry_offset = 0;
+
+ iov->iov_base = cc;
+ iov->iov_len = cc_len;
+ return 0;
+}
+
+static int mknod_wsl(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev)
+{
+ struct cifs_open_info_data data;
+ struct reparse_data_buffer buf;
+ struct smb2_create_ea_ctx *cc;
+ struct inode *new;
+ unsigned int len;
+ struct kvec reparse_iov, xattr_iov;
+ int rc;
+
+ rc = wsl_set_reparse_buf(&buf, mode, &reparse_iov);
+ if (rc)
+ return rc;
+
+ rc = wsl_set_xattrs(inode, mode, dev, &xattr_iov);
+ if (rc)
+ return rc;
+
+ data = (struct cifs_open_info_data) {
+ .reparse_point = true,
+ .reparse = { .tag = le32_to_cpu(buf.ReparseTag), .buf = &buf, },
+ };
+
+ cc = xattr_iov.iov_base;
+ len = le32_to_cpu(cc->ctx.DataLength);
+ memcpy(data.wsl.eas, &cc->ea, len);
+ data.wsl.eas_len = len;
+
+ new = smb2_get_reparse_inode(&data, inode->i_sb,
+ xid, tcon, full_path,
+ &reparse_iov, &xattr_iov);
+ if (!IS_ERR(new))
+ d_instantiate(dentry, new);
+ else
+ rc = PTR_ERR(new);
+ cifs_free_open_info(&data);
+ kfree(xattr_iov.iov_base);
+ return rc;
+}
+
+int smb2_mknod_reparse(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev)
+{
+ struct smb3_fs_context *ctx = CIFS_SB(inode->i_sb)->ctx;
+ int rc = -EOPNOTSUPP;
+
+ switch (ctx->reparse_type) {
+ case CIFS_REPARSE_TYPE_NFS:
+ rc = mknod_nfs(xid, inode, dentry, tcon, full_path, mode, dev);
+ break;
+ case CIFS_REPARSE_TYPE_WSL:
+ rc = mknod_wsl(xid, inode, dentry, tcon, full_path, mode, dev);
+ break;
+ }
+ return rc;
+}
+
+/* See MS-FSCC 2.1.2.6 for the 'NFS' style reparse tags */
+static int parse_reparse_posix(struct reparse_posix_data *buf,
+ struct cifs_sb_info *cifs_sb,
+ struct cifs_open_info_data *data)
+{
+ unsigned int len;
+ u64 type;
+
+ switch ((type = le64_to_cpu(buf->InodeType))) {
+ case NFS_SPECFILE_LNK:
+ len = le16_to_cpu(buf->ReparseDataLength);
+ data->symlink_target = cifs_strndup_from_utf16(buf->DataBuffer,
+ len, true,
+ cifs_sb->local_nls);
+ if (!data->symlink_target)
+ return -ENOMEM;
+ convert_delimiter(data->symlink_target, '/');
+ cifs_dbg(FYI, "%s: target path: %s\n",
+ __func__, data->symlink_target);
+ break;
+ case NFS_SPECFILE_CHR:
+ case NFS_SPECFILE_BLK:
+ case NFS_SPECFILE_FIFO:
+ case NFS_SPECFILE_SOCK:
+ break;
+ default:
+ cifs_dbg(VFS, "%s: unhandled inode type: 0x%llx\n",
+ __func__, type);
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static int parse_reparse_symlink(struct reparse_symlink_data_buffer *sym,
+ u32 plen, bool unicode,
+ struct cifs_sb_info *cifs_sb,
+ struct cifs_open_info_data *data)
+{
+ unsigned int len;
+ unsigned int offs;
+
+ /* We handle Symbolic Link reparse tag here. See: MS-FSCC 2.1.2.4 */
+
+ offs = le16_to_cpu(sym->SubstituteNameOffset);
+ len = le16_to_cpu(sym->SubstituteNameLength);
+ if (offs + 20 > plen || offs + len + 20 > plen) {
+ cifs_dbg(VFS, "srv returned malformed symlink buffer\n");
+ return -EIO;
+ }
+
+ data->symlink_target = cifs_strndup_from_utf16(sym->PathBuffer + offs,
+ len, unicode,
+ cifs_sb->local_nls);
+ if (!data->symlink_target)
+ return -ENOMEM;
+
+ convert_delimiter(data->symlink_target, '/');
+ cifs_dbg(FYI, "%s: target path: %s\n", __func__, data->symlink_target);
+
+ return 0;
+}
+
+int parse_reparse_point(struct reparse_data_buffer *buf,
+ u32 plen, struct cifs_sb_info *cifs_sb,
+ bool unicode, struct cifs_open_info_data *data)
+{
+ data->reparse.buf = buf;
+
+ /* See MS-FSCC 2.1.2 */
+ switch (le32_to_cpu(buf->ReparseTag)) {
+ case IO_REPARSE_TAG_NFS:
+ return parse_reparse_posix((struct reparse_posix_data *)buf,
+ cifs_sb, data);
+ case IO_REPARSE_TAG_SYMLINK:
+ return parse_reparse_symlink(
+ (struct reparse_symlink_data_buffer *)buf,
+ plen, unicode, cifs_sb, data);
+ case IO_REPARSE_TAG_LX_SYMLINK:
+ case IO_REPARSE_TAG_AF_UNIX:
+ case IO_REPARSE_TAG_LX_FIFO:
+ case IO_REPARSE_TAG_LX_CHR:
+ case IO_REPARSE_TAG_LX_BLK:
+ return 0;
+ default:
+ cifs_dbg(VFS, "%s: unhandled reparse tag: 0x%08x\n",
+ __func__, le32_to_cpu(buf->ReparseTag));
+ return -EOPNOTSUPP;
+ }
+}
+
+int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb,
+ struct kvec *rsp_iov,
+ struct cifs_open_info_data *data)
+{
+ struct reparse_data_buffer *buf;
+ struct smb2_ioctl_rsp *io = rsp_iov->iov_base;
+ u32 plen = le32_to_cpu(io->OutputCount);
+
+ buf = (struct reparse_data_buffer *)((u8 *)io +
+ le32_to_cpu(io->OutputOffset));
+ return parse_reparse_point(buf, plen, cifs_sb, true, data);
+}
+
+static void wsl_to_fattr(struct cifs_open_info_data *data,
+ struct cifs_sb_info *cifs_sb,
+ u32 tag, struct cifs_fattr *fattr)
+{
+ struct smb2_file_full_ea_info *ea;
+ u32 next = 0;
+
+ switch (tag) {
+ case IO_REPARSE_TAG_LX_SYMLINK:
+ fattr->cf_mode |= S_IFLNK;
+ break;
+ case IO_REPARSE_TAG_LX_FIFO:
+ fattr->cf_mode |= S_IFIFO;
+ break;
+ case IO_REPARSE_TAG_AF_UNIX:
+ fattr->cf_mode |= S_IFSOCK;
+ break;
+ case IO_REPARSE_TAG_LX_CHR:
+ fattr->cf_mode |= S_IFCHR;
+ break;
+ case IO_REPARSE_TAG_LX_BLK:
+ fattr->cf_mode |= S_IFBLK;
+ break;
+ }
+
+ if (!data->wsl.eas_len)
+ goto out;
+
+ ea = (struct smb2_file_full_ea_info *)data->wsl.eas;
+ do {
+ const char *name;
+ void *v;
+ u8 nlen;
+
+ ea = (void *)((u8 *)ea + next);
+ next = le32_to_cpu(ea->next_entry_offset);
+ if (!le16_to_cpu(ea->ea_value_length))
+ continue;
+
+ name = ea->ea_data;
+ nlen = ea->ea_name_length;
+ v = (void *)((u8 *)ea->ea_data + ea->ea_name_length + 1);
+
+ if (!strncmp(name, SMB2_WSL_XATTR_UID, nlen))
+ fattr->cf_uid = wsl_make_kuid(cifs_sb, v);
+ else if (!strncmp(name, SMB2_WSL_XATTR_GID, nlen))
+ fattr->cf_gid = wsl_make_kgid(cifs_sb, v);
+ else if (!strncmp(name, SMB2_WSL_XATTR_MODE, nlen))
+ fattr->cf_mode = (umode_t)le32_to_cpu(*(__le32 *)v);
+ else if (!strncmp(name, SMB2_WSL_XATTR_DEV, nlen))
+ fattr->cf_rdev = wsl_mkdev(v);
+ } while (next);
+out:
+ fattr->cf_dtype = S_DT(fattr->cf_mode);
+}
+
+bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb,
+ struct cifs_fattr *fattr,
+ struct cifs_open_info_data *data)
+{
+ struct reparse_posix_data *buf = data->reparse.posix;
+ u32 tag = data->reparse.tag;
+
+ if (tag == IO_REPARSE_TAG_NFS && buf) {
+ switch (le64_to_cpu(buf->InodeType)) {
+ case NFS_SPECFILE_CHR:
+ fattr->cf_mode |= S_IFCHR;
+ fattr->cf_rdev = reparse_nfs_mkdev(buf);
+ break;
+ case NFS_SPECFILE_BLK:
+ fattr->cf_mode |= S_IFBLK;
+ fattr->cf_rdev = reparse_nfs_mkdev(buf);
+ break;
+ case NFS_SPECFILE_FIFO:
+ fattr->cf_mode |= S_IFIFO;
+ break;
+ case NFS_SPECFILE_SOCK:
+ fattr->cf_mode |= S_IFSOCK;
+ break;
+ case NFS_SPECFILE_LNK:
+ fattr->cf_mode |= S_IFLNK;
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ return false;
+ }
+ goto out;
+ }
+
+ switch (tag) {
+ case IO_REPARSE_TAG_DFS:
+ case IO_REPARSE_TAG_DFSR:
+ case IO_REPARSE_TAG_MOUNT_POINT:
+ /* See cifs_create_junction_fattr() */
+ fattr->cf_mode = S_IFDIR | 0711;
+ break;
+ case IO_REPARSE_TAG_LX_SYMLINK:
+ case IO_REPARSE_TAG_LX_FIFO:
+ case IO_REPARSE_TAG_AF_UNIX:
+ case IO_REPARSE_TAG_LX_CHR:
+ case IO_REPARSE_TAG_LX_BLK:
+ wsl_to_fattr(data, cifs_sb, tag, fattr);
+ break;
+ case 0: /* SMB1 symlink */
+ case IO_REPARSE_TAG_SYMLINK:
+ case IO_REPARSE_TAG_NFS:
+ fattr->cf_mode |= S_IFLNK;
+ break;
+ default:
+ return false;
+ }
+out:
+ fattr->cf_dtype = S_DT(fattr->cf_mode);
+ return true;
+}
diff --git a/fs/smb/client/reparse.h b/fs/smb/client/reparse.h
new file mode 100644
index 000000000000..6b55d1df9e2f
--- /dev/null
+++ b/fs/smb/client/reparse.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2024 Paulo Alcantara <pc@xxxxxxxxxxxxx>
+ */
+
+#ifndef _CIFS_REPARSE_H
+#define _CIFS_REPARSE_H
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/uidgid.h>
+#include "fs_context.h"
+#include "cifsglob.h"
+
+static inline dev_t reparse_nfs_mkdev(struct reparse_posix_data *buf)
+{
+ u64 v = le64_to_cpu(*(__le64 *)buf->DataBuffer);
+
+ return MKDEV(v >> 32, v & 0xffffffff);
+}
+
+static inline dev_t wsl_mkdev(void *ptr)
+{
+ u64 v = le64_to_cpu(*(__le64 *)ptr);
+
+ return MKDEV(v & 0xffffffff, v >> 32);
+}
+
+static inline kuid_t wsl_make_kuid(struct cifs_sb_info *cifs_sb,
+ void *ptr)
+{
+ u32 uid = le32_to_cpu(*(__le32 *)ptr);
+
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
+ return cifs_sb->ctx->linux_uid;
+ return make_kuid(current_user_ns(), uid);
+}
+
+static inline kgid_t wsl_make_kgid(struct cifs_sb_info *cifs_sb,
+ void *ptr)
+{
+ u32 gid = le32_to_cpu(*(__le32 *)ptr);
+
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)
+ return cifs_sb->ctx->linux_gid;
+ return make_kgid(current_user_ns(), gid);
+}
+
+static inline u64 reparse_mode_nfs_type(mode_t mode)
+{
+ switch (mode & S_IFMT) {
+ case S_IFBLK: return NFS_SPECFILE_BLK;
+ case S_IFCHR: return NFS_SPECFILE_CHR;
+ case S_IFIFO: return NFS_SPECFILE_FIFO;
+ case S_IFSOCK: return NFS_SPECFILE_SOCK;
+ }
+ return 0;
+}
+
+static inline u32 reparse_mode_wsl_tag(mode_t mode)
+{
+ switch (mode & S_IFMT) {
+ case S_IFBLK: return IO_REPARSE_TAG_LX_BLK;
+ case S_IFCHR: return IO_REPARSE_TAG_LX_CHR;
+ case S_IFIFO: return IO_REPARSE_TAG_LX_FIFO;
+ case S_IFSOCK: return IO_REPARSE_TAG_AF_UNIX;
+ }
+ return 0;
+}
+
+/*
+ * Match a reparse point inode if reparse tag and ctime haven't changed.
+ *
+ * Windows Server updates ctime of reparse points when their data have changed.
+ * The server doesn't allow changing reparse tags from existing reparse points,
+ * though it's worth checking.
+ */
+static inline bool reparse_inode_match(struct inode *inode,
+ struct cifs_fattr *fattr)
+{
+ struct timespec64 ctime = inode_get_ctime(inode);
+
+ return (CIFS_I(inode)->cifsAttrs & ATTR_REPARSE) &&
+ CIFS_I(inode)->reparse_tag == fattr->cf_cifstag &&
+ timespec64_equal(&ctime, &fattr->cf_ctime);
+}
+
+static inline bool cifs_open_data_reparse(struct cifs_open_info_data *data)
+{
+ struct smb2_file_all_info *fi = &data->fi;
+ u32 attrs = le32_to_cpu(fi->Attributes);
+ bool ret;
+
+ ret = data->reparse_point || (attrs & ATTR_REPARSE);
+ if (ret)
+ attrs |= ATTR_REPARSE;
+ fi->Attributes = cpu_to_le32(attrs);
+ return ret;
+}
+
+bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb,
+ struct cifs_fattr *fattr,
+ struct cifs_open_info_data *data);
+int smb2_create_reparse_symlink(const unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, const char *symname);
+int smb2_mknod_reparse(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev);
+int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb, struct kvec *rsp_iov,
+ struct cifs_open_info_data *data);
+
+#endif /* _CIFS_REPARSE_H */
diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c
index e4168cd8b6c2..3216f786908f 100644
--- a/fs/smb/client/sess.c
+++ b/fs/smb/client/sess.c
@@ -108,6 +108,7 @@ cifs_chan_clear_in_reconnect(struct cifs_ses *ses,
struct TCP_Server_Info *server)
{
unsigned int chan_index = cifs_ses_get_chan_index(ses, server);
+
if (chan_index == CIFS_INVAL_CHAN_INDEX)
return;
@@ -119,6 +120,7 @@ cifs_chan_in_reconnect(struct cifs_ses *ses,
struct TCP_Server_Info *server)
{
unsigned int chan_index = cifs_ses_get_chan_index(ses, server);
+
if (chan_index == CIFS_INVAL_CHAN_INDEX)
return true; /* err on the safer side */
@@ -130,6 +132,7 @@ cifs_chan_set_need_reconnect(struct cifs_ses *ses,
struct TCP_Server_Info *server)
{
unsigned int chan_index = cifs_ses_get_chan_index(ses, server);
+
if (chan_index == CIFS_INVAL_CHAN_INDEX)
return;
@@ -143,6 +146,7 @@ cifs_chan_clear_need_reconnect(struct cifs_ses *ses,
struct TCP_Server_Info *server)
{
unsigned int chan_index = cifs_ses_get_chan_index(ses, server);
+
if (chan_index == CIFS_INVAL_CHAN_INDEX)
return;
@@ -156,6 +160,7 @@ cifs_chan_needs_reconnect(struct cifs_ses *ses,
struct TCP_Server_Info *server)
{
unsigned int chan_index = cifs_ses_get_chan_index(ses, server);
+
if (chan_index == CIFS_INVAL_CHAN_INDEX)
return true; /* err on the safer side */
@@ -167,6 +172,7 @@ cifs_chan_is_iface_active(struct cifs_ses *ses,
struct TCP_Server_Info *server)
{
unsigned int chan_index = cifs_ses_get_chan_index(ses, server);
+
if (chan_index == CIFS_INVAL_CHAN_INDEX)
return true; /* err on the safer side */
@@ -331,10 +337,10 @@ cifs_disable_secondary_channels(struct cifs_ses *ses)
if (iface) {
spin_lock(&ses->iface_lock);
- kref_put(&iface->refcount, release_iface);
iface->num_channels--;
if (iface->weight_fulfilled)
iface->weight_fulfilled--;
+ kref_put(&iface->refcount, release_iface);
spin_unlock(&ses->iface_lock);
}
@@ -436,8 +442,14 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
}
if (!iface) {
- cifs_dbg(FYI, "unable to get the interface matching: %pIS\n",
- &ss);
+ if (!chan_index)
+ cifs_dbg(FYI, "unable to get the interface matching: %pIS\n",
+ &ss);
+ else {
+ cifs_dbg(FYI, "unable to find another interface to replace: %pIS\n",
+ &old_iface->sockaddr);
+ }
+
spin_unlock(&ses->iface_lock);
return;
}
@@ -455,10 +467,6 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
iface->weight_fulfilled++;
kref_put(&old_iface->refcount, release_iface);
- } else if (old_iface) {
- /* if a new candidate is not found, keep things as is */
- cifs_dbg(FYI, "could not replace iface: %pIS\n",
- &old_iface->sockaddr);
} else if (!chan_index) {
/* special case: update interface for primary channel */
cifs_dbg(FYI, "referencing primary channel iface: %pIS\n",
@@ -477,8 +485,6 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
ses->chans[chan_index].iface = iface;
spin_unlock(&ses->chan_lock);
-
- return;
}
/*
@@ -677,8 +683,7 @@ static __u32 cifs_ssetup_hdr(struct cifs_ses *ses,
/* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */
- /* BB verify whether signing required on neg or just on auth frame
- (and NTLM case) */
+ /* BB verify whether signing required on neg or just auth frame (and NTLM case) */
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
CAP_LARGE_WRITE_X | CAP_LARGE_READ_X;
@@ -735,8 +740,10 @@ static void unicode_domain_string(char **pbcc_area, struct cifs_ses *ses,
/* copy domain */
if (ses->domainName == NULL) {
- /* Sending null domain better than using a bogus domain name (as
- we did briefly in 2.6.18) since server will use its default */
+ /*
+ * Sending null domain better than using a bogus domain name (as
+ * we did briefly in 2.6.18) since server will use its default
+ */
*bcc_ptr = 0;
*(bcc_ptr+1) = 0;
bytes_ret = 0;
@@ -755,8 +762,7 @@ static void unicode_ssetup_strings(char **pbcc_area, struct cifs_ses *ses,
char *bcc_ptr = *pbcc_area;
int bytes_ret = 0;
- /* BB FIXME add check that strings total less
- than 335 or will need to send them as arrays */
+ /* BB FIXME add check that strings less than 335 or will need to send as arrays */
/* copy user */
if (ses->user_name == NULL) {
@@ -801,8 +807,7 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifs_ses *ses,
if (WARN_ON_ONCE(len < 0))
len = CIFS_MAX_DOMAINNAME_LEN - 1;
bcc_ptr += len;
- } /* else we will send a null domain name
- so the server will default to its own domain */
+ } /* else we send a null domain name so server will default to its own domain */
*bcc_ptr = 0;
bcc_ptr++;
@@ -898,11 +903,14 @@ static void decode_ascii_ssetup(char **pbcc_area, __u16 bleft,
if (len > bleft)
return;
- /* No domain field in LANMAN case. Domain is
- returned by old servers in the SMB negprot response */
- /* BB For newer servers which do not support Unicode,
- but thus do return domain here we could add parsing
- for it later, but it is not very important */
+ /*
+ * No domain field in LANMAN case. Domain is
+ * returned by old servers in the SMB negprot response
+ *
+ * BB For newer servers which do not support Unicode,
+ * but thus do return domain here, we could add parsing
+ * for it later, but it is not very important
+ */
cifs_dbg(FYI, "ascii: bytes left %d\n", bleft);
}
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
@@ -958,9 +966,12 @@ int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
ses->ntlmssp->server_flags = server_flags;
memcpy(ses->ntlmssp->cryptkey, pblob->Challenge, CIFS_CRYPTO_KEY_SIZE);
- /* In particular we can examine sign flags */
- /* BB spec says that if AvId field of MsvAvTimestamp is populated then
- we must set the MIC field of the AUTHENTICATE_MESSAGE */
+ /*
+ * In particular we can examine sign flags
+ *
+ * BB spec says that if AvId field of MsvAvTimestamp is populated then
+ * we must set the MIC field of the AUTHENTICATE_MESSAGE
+ */
tioffset = le32_to_cpu(pblob->TargetInfoArray.BufferOffset);
tilen = le16_to_cpu(pblob->TargetInfoArray.Length);
@@ -1201,10 +1212,16 @@ int build_ntlmssp_auth_blob(unsigned char **pbuffer,
memcpy(sec_blob->Signature, NTLMSSP_SIGNATURE, 8);
sec_blob->MessageType = NtLmAuthenticate;
+ /* send version information in ntlmssp authenticate also */
flags = ses->ntlmssp->server_flags | NTLMSSP_REQUEST_TARGET |
- NTLMSSP_NEGOTIATE_TARGET_INFO | NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED;
- /* we only send version information in ntlmssp negotiate, so do not set this flag */
- flags = flags & ~NTLMSSP_NEGOTIATE_VERSION;
+ NTLMSSP_NEGOTIATE_TARGET_INFO | NTLMSSP_NEGOTIATE_VERSION |
+ NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED;
+
+ sec_blob->Version.ProductMajorVersion = LINUX_VERSION_MAJOR;
+ sec_blob->Version.ProductMinorVersion = LINUX_VERSION_PATCHLEVEL;
+ sec_blob->Version.ProductBuild = cpu_to_le16(SMB3_PRODUCT_BUILD);
+ sec_blob->Version.NTLMRevisionCurrent = NTLMSSP_REVISION_W2K3;
+
tmp = *pbuffer + sizeof(AUTHENTICATE_MESSAGE);
sec_blob->NegotiateFlags = cpu_to_le32(flags);
diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c
index 1aebcf95c195..212ec6f66ec6 100644
--- a/fs/smb/client/smb1ops.c
+++ b/fs/smb/client/smb1ops.c
@@ -1041,15 +1041,7 @@ cifs_make_node(unsigned int xid, struct inode *inode,
{
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct inode *newinode = NULL;
- int rc = -EPERM;
- struct cifs_open_info_data buf = {};
- struct cifs_io_parms io_parms;
- __u32 oplock = 0;
- struct cifs_fid fid;
- struct cifs_open_parms oparms;
- unsigned int bytes_written;
- struct win_dev *pdev;
- struct kvec iov[2];
+ int rc;
if (tcon->unix_ext) {
/*
@@ -1083,74 +1075,18 @@ cifs_make_node(unsigned int xid, struct inode *inode,
d_instantiate(dentry, newinode);
return rc;
}
-
/*
- * SMB1 SFU emulation: should work with all servers, but only
- * support block and char device (no socket & fifo)
+ * Check if mounted with mount parm 'sfu' mount parm.
+ * SFU emulation should work with all servers, but only
+ * supports block and char device (no socket & fifo),
+ * and was used by default in earlier versions of Windows
*/
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
- return rc;
-
- if (!S_ISCHR(mode) && !S_ISBLK(mode))
- return rc;
-
- cifs_dbg(FYI, "sfu compat create special file\n");
-
- oparms = (struct cifs_open_parms) {
- .tcon = tcon,
- .cifs_sb = cifs_sb,
- .desired_access = GENERIC_WRITE,
- .create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR |
- CREATE_OPTION_SPECIAL),
- .disposition = FILE_CREATE,
- .path = full_path,
- .fid = &fid,
- };
-
- if (tcon->ses->server->oplocks)
- oplock = REQ_OPLOCK;
- else
- oplock = 0;
- rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, &buf);
- if (rc)
- return rc;
-
- /*
- * BB Do not bother to decode buf since no local inode yet to put
- * timestamps in, but we can reuse it safely.
- */
-
- pdev = (struct win_dev *)&buf.fi;
- io_parms.pid = current->tgid;
- io_parms.tcon = tcon;
- io_parms.offset = 0;
- io_parms.length = sizeof(struct win_dev);
- iov[1].iov_base = &buf.fi;
- iov[1].iov_len = sizeof(struct win_dev);
- if (S_ISCHR(mode)) {
- memcpy(pdev->type, "IntxCHR", 8);
- pdev->major = cpu_to_le64(MAJOR(dev));
- pdev->minor = cpu_to_le64(MINOR(dev));
- rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
- &bytes_written, iov, 1);
- } else if (S_ISBLK(mode)) {
- memcpy(pdev->type, "IntxBLK", 8);
- pdev->major = cpu_to_le64(MAJOR(dev));
- pdev->minor = cpu_to_le64(MINOR(dev));
- rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
- &bytes_written, iov, 1);
- }
- tcon->ses->server->ops->close(xid, tcon, &fid);
- d_drop(dentry);
-
- /* FIXME: add code here to set EAs */
-
- cifs_free_open_info(&buf);
- return rc;
+ return -EPERM;
+ return cifs_sfu_make_node(xid, inode, dentry, tcon,
+ full_path, mode, dev);
}
-
-
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
diff --git a/fs/smb/client/smb2glob.h b/fs/smb/client/smb2glob.h
index 82e916ad167c..2466e6155136 100644
--- a/fs/smb/client/smb2glob.h
+++ b/fs/smb/client/smb2glob.h
@@ -23,17 +23,22 @@
* Identifiers for functions that use the open, operation, close pattern
* in smb2inode.c:smb2_compound_op()
*/
-#define SMB2_OP_SET_DELETE 1
-#define SMB2_OP_SET_INFO 2
-#define SMB2_OP_QUERY_INFO 3
-#define SMB2_OP_QUERY_DIR 4
-#define SMB2_OP_MKDIR 5
-#define SMB2_OP_RENAME 6
-#define SMB2_OP_DELETE 7
-#define SMB2_OP_HARDLINK 8
-#define SMB2_OP_SET_EOF 9
-#define SMB2_OP_RMDIR 10
-#define SMB2_OP_POSIX_QUERY_INFO 11
+enum smb2_compound_ops {
+ SMB2_OP_SET_DELETE = 1,
+ SMB2_OP_SET_INFO,
+ SMB2_OP_QUERY_INFO,
+ SMB2_OP_QUERY_DIR,
+ SMB2_OP_MKDIR,
+ SMB2_OP_RENAME,
+ SMB2_OP_DELETE,
+ SMB2_OP_HARDLINK,
+ SMB2_OP_SET_EOF,
+ SMB2_OP_RMDIR,
+ SMB2_OP_POSIX_QUERY_INFO,
+ SMB2_OP_SET_REPARSE,
+ SMB2_OP_GET_REPARSE,
+ SMB2_OP_QUERY_WSL_EA,
+};
/* Used when constructing chained read requests. */
#define CHAINED_REQUEST 1
diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c
index 6cac0b107a2d..86f8c8179137 100644
--- a/fs/smb/client/smb2inode.c
+++ b/fs/smb/client/smb2inode.c
@@ -26,15 +26,6 @@
#include "cached_dir.h"
#include "smb2status.h"
-static void
-free_set_inf_compound(struct smb_rqst *rqst)
-{
- if (rqst[1].rq_iov)
- SMB2_set_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
-}
-
static inline __u32 file_create_options(struct dentry *dentry)
{
struct cifsInodeInfo *ci;
@@ -47,6 +38,129 @@ static inline __u32 file_create_options(struct dentry *dentry)
return 0;
}
+static struct reparse_data_buffer *reparse_buf_ptr(struct kvec *iov)
+{
+ struct reparse_data_buffer *buf;
+ struct smb2_ioctl_rsp *io = iov->iov_base;
+ u32 off, count, len;
+
+ count = le32_to_cpu(io->OutputCount);
+ off = le32_to_cpu(io->OutputOffset);
+ if (check_add_overflow(off, count, &len) || len > iov->iov_len)
+ return ERR_PTR(-EIO);
+
+ buf = (struct reparse_data_buffer *)((u8 *)io + off);
+ len = sizeof(*buf);
+ if (count < len || count < le16_to_cpu(buf->ReparseDataLength) + len)
+ return ERR_PTR(-EIO);
+ return buf;
+}
+
+/* Parse owner and group from SMB3.1.1 POSIX query info */
+static int parse_posix_sids(struct cifs_open_info_data *data,
+ struct kvec *rsp_iov)
+{
+ struct smb2_query_info_rsp *qi = rsp_iov->iov_base;
+ unsigned int out_len = le32_to_cpu(qi->OutputBufferLength);
+ unsigned int qi_len = sizeof(data->posix_fi);
+ int owner_len, group_len;
+ u8 *sidsbuf, *sidsbuf_end;
+
+ if (out_len <= qi_len)
+ return -EINVAL;
+
+ sidsbuf = (u8 *)qi + le16_to_cpu(qi->OutputBufferOffset) + qi_len;
+ sidsbuf_end = sidsbuf + out_len - qi_len;
+
+ owner_len = posix_info_sid_size(sidsbuf, sidsbuf_end);
+ if (owner_len == -1)
+ return -EINVAL;
+
+ memcpy(&data->posix_owner, sidsbuf, owner_len);
+ group_len = posix_info_sid_size(sidsbuf + owner_len, sidsbuf_end);
+ if (group_len == -1)
+ return -EINVAL;
+
+ memcpy(&data->posix_group, sidsbuf + owner_len, group_len);
+ return 0;
+}
+
+struct wsl_query_ea {
+ __le32 next;
+ __u8 name_len;
+ __u8 name[SMB2_WSL_XATTR_NAME_LEN + 1];
+} __packed;
+
+#define NEXT_OFF cpu_to_le32(sizeof(struct wsl_query_ea))
+
+static const struct wsl_query_ea wsl_query_eas[] = {
+ { .next = NEXT_OFF, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_UID, },
+ { .next = NEXT_OFF, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_GID, },
+ { .next = NEXT_OFF, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_MODE, },
+ { .next = 0, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_DEV, },
+};
+
+static int check_wsl_eas(struct kvec *rsp_iov)
+{
+ struct smb2_file_full_ea_info *ea;
+ struct smb2_query_info_rsp *rsp = rsp_iov->iov_base;
+ unsigned long addr;
+ u32 outlen, next;
+ u16 vlen;
+ u8 nlen;
+ u8 *end;
+
+ outlen = le32_to_cpu(rsp->OutputBufferLength);
+ if (outlen < SMB2_WSL_MIN_QUERY_EA_RESP_SIZE ||
+ outlen > SMB2_WSL_MAX_QUERY_EA_RESP_SIZE)
+ return -EINVAL;
+
+ ea = (void *)((u8 *)rsp_iov->iov_base +
+ le16_to_cpu(rsp->OutputBufferOffset));
+ end = (u8 *)rsp_iov->iov_base + rsp_iov->iov_len;
+ for (;;) {
+ if ((u8 *)ea > end - sizeof(*ea))
+ return -EINVAL;
+
+ nlen = ea->ea_name_length;
+ vlen = le16_to_cpu(ea->ea_value_length);
+ if (nlen != SMB2_WSL_XATTR_NAME_LEN ||
+ (u8 *)ea + nlen + 1 + vlen > end)
+ return -EINVAL;
+
+ switch (vlen) {
+ case 4:
+ if (strncmp(ea->ea_data, SMB2_WSL_XATTR_UID, nlen) &&
+ strncmp(ea->ea_data, SMB2_WSL_XATTR_GID, nlen) &&
+ strncmp(ea->ea_data, SMB2_WSL_XATTR_MODE, nlen))
+ return -EINVAL;
+ break;
+ case 8:
+ if (strncmp(ea->ea_data, SMB2_WSL_XATTR_DEV, nlen))
+ return -EINVAL;
+ break;
+ case 0:
+ if (!strncmp(ea->ea_data, SMB2_WSL_XATTR_UID, nlen) ||
+ !strncmp(ea->ea_data, SMB2_WSL_XATTR_GID, nlen) ||
+ !strncmp(ea->ea_data, SMB2_WSL_XATTR_MODE, nlen) ||
+ !strncmp(ea->ea_data, SMB2_WSL_XATTR_DEV, nlen))
+ break;
+ fallthrough;
+ default:
+ return -EINVAL;
+ }
+
+ next = le32_to_cpu(ea->next_entry_offset);
+ if (!next)
+ break;
+ if (!IS_ALIGNED(next, 4) ||
+ check_add_overflow((unsigned long)ea, next, &addr))
+ return -EINVAL;
+ ea = (void *)addr;
+ }
+ return 0;
+}
+
/*
* note: If cfile is passed, the reference to it is dropped here.
* So make sure that you do not reuse cfile after return from this func.
@@ -57,13 +171,14 @@ static inline __u32 file_create_options(struct dentry *dentry)
*/
static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *full_path,
- __u32 desired_access, __u32 create_disposition, __u32 create_options,
- umode_t mode, void *ptr, int command, struct cifsFileInfo *cfile,
- __u8 **extbuf, size_t *extbuflen,
- struct kvec *out_iov, int *out_buftype)
+ struct cifs_open_parms *oparms, struct kvec *in_iov,
+ int *cmds, int num_cmds, struct cifsFileInfo *cfile,
+ struct kvec *out_iov, int *out_buftype, struct dentry *dentry)
{
+
+ struct reparse_data_buffer *rbuf;
struct smb2_compound_vars *vars = NULL;
- struct kvec *rsp_iov;
+ struct kvec *rsp_iov, *iov;
struct smb_rqst *rqst;
int rc;
__le16 *utf16_path = NULL;
@@ -71,15 +186,24 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_fid fid;
struct cifs_ses *ses = tcon->ses;
struct TCP_Server_Info *server;
- int num_rqst = 0;
- int resp_buftype[3];
+ int num_rqst = 0, i;
+ int resp_buftype[MAX_COMPOUND];
struct smb2_query_info_rsp *qi_rsp = NULL;
struct cifs_open_info_data *idata;
+ struct inode *inode = NULL;
int flags = 0;
__u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0};
unsigned int size[2];
void *data[2];
- int len;
+ unsigned int len;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ oplock = SMB2_OPLOCK_LEVEL_NONE;
+ num_rqst = 0;
+ server = cifs_pick_channel(ses);
vars = kzalloc(sizeof(*vars), GFP_ATOMIC);
if (vars == NULL)
@@ -87,12 +211,11 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
rqst = &vars->rqst[0];
rsp_iov = &vars->rsp_iov[0];
- server = cifs_pick_channel(ses);
-
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
- resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
+ for (i = 0; i < ARRAY_SIZE(resp_buftype); i++)
+ resp_buftype[i] = CIFS_NO_BUFFER;
/* We already have a handle so we can skip the open */
if (cfile)
@@ -105,16 +228,28 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
goto finished;
}
- vars->oparms = (struct cifs_open_parms) {
- .tcon = tcon,
- .path = full_path,
- .desired_access = desired_access,
- .disposition = create_disposition,
- .create_options = cifs_create_options(cifs_sb, create_options),
- .fid = &fid,
- .mode = mode,
- .cifs_sb = cifs_sb,
- };
+ /* if there is an existing lease, reuse it */
+
+ /*
+ * note: files with hardlinks cause unexpected behaviour. As per MS-SMB2,
+ * lease keys are associated with the filepath. We are maintaining lease keys
+ * with the inode on the client. If the file has hardlinks, it is possible
+ * that the lease for a file be reused for an operation on its hardlink or
+ * vice versa.
+ * As a workaround, send request using an existing lease key and if the server
+ * returns STATUS_INVALID_PARAMETER, which maps to EINVAL, send the request
+ * again without the lease.
+ */
+ if (dentry) {
+ inode = d_inode(dentry);
+ if (CIFS_I(inode)->lease_granted && server->ops->get_lease_key) {
+ oplock = SMB2_OPLOCK_LEVEL_LEASE;
+ server->ops->get_lease_key(inode, &fid);
+ }
+ }
+
+ vars->oparms = *oparms;
+ vars->oparms.fid = &fid;
rqst[num_rqst].rq_iov = &vars->open_iov[0];
rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE;
@@ -130,242 +265,330 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
num_rqst++;
rc = 0;
- /* Operation */
- switch (command) {
- case SMB2_OP_QUERY_INFO:
- rqst[num_rqst].rq_iov = &vars->qi_iov;
- rqst[num_rqst].rq_nvec = 1;
-
- if (cfile)
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- FILE_ALL_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- sizeof(struct smb2_file_all_info) +
- PATH_MAX * 2, 0, NULL);
- else {
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID,
- FILE_ALL_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- sizeof(struct smb2_file_all_info) +
- PATH_MAX * 2, 0, NULL);
- if (!rc) {
+ for (i = 0; i < num_cmds; i++) {
+ /* Operation */
+ switch (cmds[i]) {
+ case SMB2_OP_QUERY_INFO:
+ rqst[num_rqst].rq_iov = &vars->qi_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+ if (cfile) {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FILE_ALL_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb2_file_all_info) +
+ PATH_MAX * 2, 0, NULL);
+ } else {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ FILE_ALL_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb2_file_all_info) +
+ PATH_MAX * 2, 0, NULL);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
+ num_rqst++;
+ trace_smb3_query_info_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_POSIX_QUERY_INFO:
+ rqst[num_rqst].rq_iov = &vars->qi_iov;
+ rqst[num_rqst].rq_nvec = 1;
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid,
- full_path);
- break;
- case SMB2_OP_POSIX_QUERY_INFO:
- rqst[num_rqst].rq_iov = &vars->qi_iov;
- rqst[num_rqst].rq_nvec = 1;
-
- if (cfile)
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- SMB_FIND_FILE_POSIX_INFO,
- SMB2_O_INFO_FILE, 0,
+ if (cfile) {
/* TBD: fix following to allow for longer SIDs */
- sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) +
- (sizeof(struct cifs_sid) * 2), 0, NULL);
- else {
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID,
- SMB_FIND_FILE_POSIX_INFO,
- SMB2_O_INFO_FILE, 0,
- sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) +
- (sizeof(struct cifs_sid) * 2), 0, NULL);
- if (!rc) {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ SMB_FIND_FILE_POSIX_INFO,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb311_posix_qinfo *) +
+ (PATH_MAX * 2) +
+ (sizeof(struct cifs_sid) * 2), 0, NULL);
+ } else {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ SMB_FIND_FILE_POSIX_INFO,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb311_posix_qinfo *) +
+ (PATH_MAX * 2) +
+ (sizeof(struct cifs_sid) * 2), 0, NULL);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
-
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_posix_query_info_compound_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_DELETE:
- trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_MKDIR:
- /*
- * Directories are created through parameters in the
- * SMB2_open() call.
- */
- trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_RMDIR:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 1;
-
- size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
- data[0] = &delete_pending[0];
-
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_DISPOSITION_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (rc)
- goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_SET_EOF:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 1;
+ num_rqst++;
+ trace_smb3_posix_query_info_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_DELETE:
+ trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_MKDIR:
+ /*
+ * Directories are created through parameters in the
+ * SMB2_open() call.
+ */
+ trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_RMDIR:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 1;
- size[0] = 8; /* sizeof __le64 */
- data[0] = ptr;
+ size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
+ data[0] = &delete_pending[0];
- if (cfile) {
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- current->tgid,
- FILE_END_OF_FILE_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- data, size);
- } else {
rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID,
- current->tgid,
- FILE_END_OF_FILE_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- data, size);
- if (!rc) {
+ &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_DISPOSITION_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (rc)
+ goto finished;
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst++]);
+ trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_EOF:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 1;
+
+ size[0] = in_iov[i].iov_len;
+ data[0] = in_iov[i].iov_base;
+
+ if (cfile) {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ current->tgid,
+ FILE_END_OF_FILE_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ data, size);
+ } else {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ current->tgid,
+ FILE_END_OF_FILE_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ data, size);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_SET_INFO:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 1;
-
-
- size[0] = sizeof(FILE_BASIC_INFO);
- data[0] = ptr;
-
- if (cfile)
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, current->tgid,
- FILE_BASIC_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- else {
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_BASIC_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (!rc) {
+ num_rqst++;
+ trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_INFO:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 1;
+
+ size[0] = in_iov[i].iov_len;
+ data[0] = in_iov[i].iov_base;
+
+ if (cfile) {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ } else {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
-
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid,
- full_path);
- break;
- case SMB2_OP_RENAME:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 2;
+ num_rqst++;
+ trace_smb3_set_info_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_RENAME:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 2;
- len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
+ len = in_iov[i].iov_len;
- vars->rename_info.ReplaceIfExists = 1;
- vars->rename_info.RootDirectory = 0;
- vars->rename_info.FileNameLength = cpu_to_le32(len);
+ vars->rename_info.ReplaceIfExists = 1;
+ vars->rename_info.RootDirectory = 0;
+ vars->rename_info.FileNameLength = cpu_to_le32(len);
- size[0] = sizeof(struct smb2_file_rename_info);
- data[0] = &vars->rename_info;
+ size[0] = sizeof(struct smb2_file_rename_info);
+ data[0] = &vars->rename_info;
- size[1] = len + 2 /* null */;
- data[1] = (__le16 *)ptr;
+ size[1] = len + 2 /* null */;
+ data[1] = in_iov[i].iov_base;
- if (cfile)
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- current->tgid, FILE_RENAME_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- else {
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID, COMPOUND_FID,
- current->tgid, FILE_RENAME_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (!rc) {
+ if (cfile) {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ current->tgid, FILE_RENAME_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ } else {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ current->tgid, FILE_RENAME_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_HARDLINK:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 2;
+ num_rqst++;
+ trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_HARDLINK:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 2;
- len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
+ len = in_iov[i].iov_len;
- vars->link_info.ReplaceIfExists = 0;
- vars->link_info.RootDirectory = 0;
- vars->link_info.FileNameLength = cpu_to_le32(len);
+ vars->link_info.ReplaceIfExists = 0;
+ vars->link_info.RootDirectory = 0;
+ vars->link_info.FileNameLength = cpu_to_le32(len);
- size[0] = sizeof(struct smb2_file_link_info);
- data[0] = &vars->link_info;
+ size[0] = sizeof(struct smb2_file_link_info);
+ data[0] = &vars->link_info;
- size[1] = len + 2 /* null */;
- data[1] = (__le16 *)ptr;
+ size[1] = len + 2 /* null */;
+ data[1] = in_iov[i].iov_base;
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_LINK_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (rc)
- goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- default:
- cifs_dbg(VFS, "Invalid command\n");
- rc = -EINVAL;
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_LINK_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (rc)
+ goto finished;
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst++]);
+ trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_REPARSE:
+ rqst[num_rqst].rq_iov = vars->io_iov;
+ rqst[num_rqst].rq_nvec = ARRAY_SIZE(vars->io_iov);
+
+ if (cfile) {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FSCTL_SET_REPARSE_POINT,
+ in_iov[i].iov_base,
+ in_iov[i].iov_len, 0);
+ } else {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ FSCTL_SET_REPARSE_POINT,
+ in_iov[i].iov_base,
+ in_iov[i].iov_len, 0);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
+ }
+ num_rqst++;
+ trace_smb3_set_reparse_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_GET_REPARSE:
+ rqst[num_rqst].rq_iov = vars->io_iov;
+ rqst[num_rqst].rq_nvec = ARRAY_SIZE(vars->io_iov);
+
+ if (cfile) {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FSCTL_GET_REPARSE_POINT,
+ NULL, 0, CIFSMaxBufSize);
+ } else {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ FSCTL_GET_REPARSE_POINT,
+ NULL, 0, CIFSMaxBufSize);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
+ }
+ num_rqst++;
+ trace_smb3_get_reparse_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_QUERY_WSL_EA:
+ rqst[num_rqst].rq_iov = &vars->ea_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+ if (cfile) {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FILE_FULL_EA_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ SMB2_WSL_MAX_QUERY_EA_RESP_SIZE,
+ sizeof(wsl_query_eas),
+ (void *)wsl_query_eas);
+ } else {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ FILE_FULL_EA_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ SMB2_WSL_MAX_QUERY_EA_RESP_SIZE,
+ sizeof(wsl_query_eas),
+ (void *)wsl_query_eas);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
+ }
+ num_rqst++;
+ break;
+ default:
+ cifs_dbg(VFS, "Invalid command\n");
+ rc = -EINVAL;
+ }
}
if (rc)
goto finished;
@@ -387,157 +610,219 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
num_rqst++;
if (cfile) {
+ if (retries)
+ for (i = 1; i < num_rqst - 2; i++)
+ smb2_set_replay(server, &rqst[i]);
+
rc = compound_send_recv(xid, ses, server,
flags, num_rqst - 2,
&rqst[1], &resp_buftype[1],
&rsp_iov[1]);
- } else
+ } else {
+ if (retries)
+ for (i = 0; i < num_rqst; i++)
+ smb2_set_replay(server, &rqst[i]);
+
rc = compound_send_recv(xid, ses, server,
flags, num_rqst,
rqst, resp_buftype,
rsp_iov);
+ }
- finished:
- SMB2_open_free(&rqst[0]);
+finished:
+ num_rqst = 0;
+ SMB2_open_free(&rqst[num_rqst++]);
if (rc == -EREMCHG) {
pr_warn_once("server share %s deleted\n", tcon->tree_name);
tcon->need_reconnect = true;
}
- switch (command) {
- case SMB2_OP_QUERY_INFO:
- idata = ptr;
- if (rc == 0 && cfile && cfile->symlink_target) {
- idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
- if (!idata->symlink_target)
- rc = -ENOMEM;
- }
- if (rc == 0) {
- qi_rsp = (struct smb2_query_info_rsp *)
- rsp_iov[1].iov_base;
- rc = smb2_validate_and_copy_iov(
- le16_to_cpu(qi_rsp->OutputBufferOffset),
- le32_to_cpu(qi_rsp->OutputBufferLength),
- &rsp_iov[1], sizeof(idata->fi), (char *)&idata->fi);
- }
- if (rqst[1].rq_iov)
- SMB2_query_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
- if (rc)
- trace_smb3_query_info_compound_err(xid, ses->Suid,
- tcon->tid, rc);
- else
- trace_smb3_query_info_compound_done(xid, ses->Suid,
- tcon->tid);
- break;
- case SMB2_OP_POSIX_QUERY_INFO:
- idata = ptr;
- if (rc == 0 && cfile && cfile->symlink_target) {
- idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
- if (!idata->symlink_target)
- rc = -ENOMEM;
- }
- if (rc == 0) {
- qi_rsp = (struct smb2_query_info_rsp *)
- rsp_iov[1].iov_base;
- rc = smb2_validate_and_copy_iov(
- le16_to_cpu(qi_rsp->OutputBufferOffset),
- le32_to_cpu(qi_rsp->OutputBufferLength),
- &rsp_iov[1], sizeof(idata->posix_fi) /* add SIDs */,
- (char *)&idata->posix_fi);
- }
- if (rc == 0) {
- unsigned int length = le32_to_cpu(qi_rsp->OutputBufferLength);
-
- if (length > sizeof(idata->posix_fi)) {
- char *base = (char *)rsp_iov[1].iov_base +
- le16_to_cpu(qi_rsp->OutputBufferOffset) +
- sizeof(idata->posix_fi);
- *extbuflen = length - sizeof(idata->posix_fi);
- *extbuf = kmemdup(base, *extbuflen, GFP_KERNEL);
- if (!*extbuf)
+ for (i = 0; i < num_cmds; i++) {
+ switch (cmds[i]) {
+ case SMB2_OP_QUERY_INFO:
+ idata = in_iov[i].iov_base;
+ if (rc == 0 && cfile && cfile->symlink_target) {
+ idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
+ if (!idata->symlink_target)
rc = -ENOMEM;
+ }
+ if (rc == 0) {
+ qi_rsp = (struct smb2_query_info_rsp *)
+ rsp_iov[i + 1].iov_base;
+ rc = smb2_validate_and_copy_iov(
+ le16_to_cpu(qi_rsp->OutputBufferOffset),
+ le32_to_cpu(qi_rsp->OutputBufferLength),
+ &rsp_iov[i + 1], sizeof(idata->fi), (char *)&idata->fi);
+ }
+ SMB2_query_info_free(&rqst[num_rqst++]);
+ if (rc)
+ trace_smb3_query_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_query_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ break;
+ case SMB2_OP_POSIX_QUERY_INFO:
+ idata = in_iov[i].iov_base;
+ if (rc == 0 && cfile && cfile->symlink_target) {
+ idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
+ if (!idata->symlink_target)
+ rc = -ENOMEM;
+ }
+ if (rc == 0) {
+ qi_rsp = (struct smb2_query_info_rsp *)
+ rsp_iov[i + 1].iov_base;
+ rc = smb2_validate_and_copy_iov(
+ le16_to_cpu(qi_rsp->OutputBufferOffset),
+ le32_to_cpu(qi_rsp->OutputBufferLength),
+ &rsp_iov[i + 1], sizeof(idata->posix_fi) /* add SIDs */,
+ (char *)&idata->posix_fi);
+ }
+ if (rc == 0)
+ rc = parse_posix_sids(idata, &rsp_iov[i + 1]);
+
+ SMB2_query_info_free(&rqst[num_rqst++]);
+ if (rc)
+ trace_smb3_posix_query_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_posix_query_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ break;
+ case SMB2_OP_DELETE:
+ if (rc)
+ trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc);
+ else {
+ /*
+ * If dentry (hence, inode) is NULL, lease break is going to
+ * take care of degrading leases on handles for deleted files.
+ */
+ if (inode)
+ cifs_mark_open_handles_for_deleted_file(inode, full_path);
+ trace_smb3_delete_done(xid, ses->Suid, tcon->tid);
+ }
+ break;
+ case SMB2_OP_MKDIR:
+ if (rc)
+ trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid);
+ break;
+ case SMB2_OP_HARDLINK:
+ if (rc)
+ trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_RENAME:
+ if (rc)
+ trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_rename_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_RMDIR:
+ if (rc)
+ trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_SET_EOF:
+ if (rc)
+ trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_SET_INFO:
+ if (rc)
+ trace_smb3_set_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_set_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_SET_REPARSE:
+ if (rc) {
+ trace_smb3_set_reparse_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ } else {
+ trace_smb3_set_reparse_compound_done(xid, ses->Suid,
+ tcon->tid);
+ }
+ SMB2_ioctl_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_GET_REPARSE:
+ if (!rc) {
+ iov = &rsp_iov[i + 1];
+ idata = in_iov[i].iov_base;
+ idata->reparse.io.iov = *iov;
+ idata->reparse.io.buftype = resp_buftype[i + 1];
+ rbuf = reparse_buf_ptr(iov);
+ if (IS_ERR(rbuf)) {
+ rc = PTR_ERR(rbuf);
+ trace_smb3_set_reparse_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ } else {
+ idata->reparse.tag = le32_to_cpu(rbuf->ReparseTag);
+ trace_smb3_set_reparse_compound_done(xid, ses->Suid,
+ tcon->tid);
+ }
+ memset(iov, 0, sizeof(*iov));
+ resp_buftype[i + 1] = CIFS_NO_BUFFER;
+ } else {
+ trace_smb3_set_reparse_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ }
+ SMB2_ioctl_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_QUERY_WSL_EA:
+ if (!rc) {
+ idata = in_iov[i].iov_base;
+ qi_rsp = rsp_iov[i + 1].iov_base;
+ data[0] = (u8 *)qi_rsp + le16_to_cpu(qi_rsp->OutputBufferOffset);
+ size[0] = le32_to_cpu(qi_rsp->OutputBufferLength);
+ rc = check_wsl_eas(&rsp_iov[i + 1]);
+ if (!rc) {
+ memcpy(idata->wsl.eas, data[0], size[0]);
+ idata->wsl.eas_len = size[0];
+ }
+ }
+ if (!rc) {
+ trace_smb3_query_wsl_ea_compound_done(xid, ses->Suid,
+ tcon->tid);
} else {
- rc = -EINVAL;
+ trace_smb3_query_wsl_ea_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
}
+ SMB2_query_info_free(&rqst[num_rqst++]);
+ break;
}
- if (rqst[1].rq_iov)
- SMB2_query_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
- if (rc)
- trace_smb3_posix_query_info_compound_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_posix_query_info_compound_done(xid, ses->Suid, tcon->tid);
- break;
- case SMB2_OP_DELETE:
- if (rc)
- trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_delete_done(xid, ses->Suid, tcon->tid);
- if (rqst[1].rq_iov)
- SMB2_close_free(&rqst[1]);
- break;
- case SMB2_OP_MKDIR:
- if (rc)
- trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid);
- if (rqst[1].rq_iov)
- SMB2_close_free(&rqst[1]);
- break;
- case SMB2_OP_HARDLINK:
- if (rc)
- trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_RENAME:
- if (rc)
- trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_rename_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_RMDIR:
- if (rc)
- trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_SET_EOF:
- if (rc)
- trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_SET_INFO:
- if (rc)
- trace_smb3_set_info_compound_err(xid, ses->Suid,
- tcon->tid, rc);
- else
- trace_smb3_set_info_compound_done(xid, ses->Suid,
- tcon->tid);
- free_set_inf_compound(rqst);
- break;
}
+ SMB2_close_free(&rqst[num_rqst]);
- if (cfile)
- cifsFileInfo_put(cfile);
-
+ num_cmds += 2;
if (out_iov && out_buftype) {
- memcpy(out_iov, rsp_iov, 3 * sizeof(*out_iov));
- memcpy(out_buftype, resp_buftype, 3 * sizeof(*out_buftype));
+ memcpy(out_iov, rsp_iov, num_cmds * sizeof(*out_iov));
+ memcpy(out_buftype, resp_buftype,
+ num_cmds * sizeof(*out_buftype));
} else {
- free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
- free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
- free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
+ for (i = 0; i < num_cmds; i++)
+ free_rsp_buf(resp_buftype[i], rsp_iov[i].iov_base);
}
+ num_cmds -= 2; /* correct num_cmds as there could be a retry */
kfree(vars);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
+ if (cfile)
+ cifsFileInfo_put(cfile);
+
return rc;
}
@@ -577,38 +862,64 @@ int smb2_query_path_info(const unsigned int xid,
const char *full_path,
struct cifs_open_info_data *data)
{
+ struct cifs_open_parms oparms;
__u32 create_options = 0;
struct cifsFileInfo *cfile;
struct cached_fid *cfid = NULL;
struct smb2_hdr *hdr;
- struct kvec out_iov[3] = {};
+ struct kvec in_iov[3], out_iov[3] = {};
int out_buftype[3] = {};
+ int cmds[3];
bool islink;
+ int i, num_cmds = 0;
int rc, rc2;
data->adjust_tz = false;
data->reparse_point = false;
- if (strcmp(full_path, ""))
- rc = -ENOENT;
- else
- rc = open_cached_dir(xid, tcon, full_path, cifs_sb, false, &cfid);
- /* If it is a root and its handle is cached then use it */
- if (!rc) {
- if (cfid->file_all_info_is_valid) {
- memcpy(&data->fi, &cfid->file_all_info, sizeof(data->fi));
+ /*
+ * BB TODO: Add support for using cached root handle in SMB3.1.1 POSIX.
+ * Create SMB2_query_posix_info worker function to do non-compounded
+ * query when we already have an open file handle for this. For now this
+ * is fast enough (always using the compounded version).
+ */
+ if (!tcon->posix_extensions) {
+ if (*full_path) {
+ rc = -ENOENT;
} else {
- rc = SMB2_query_info(xid, tcon, cfid->fid.persistent_fid,
- cfid->fid.volatile_fid, &data->fi);
+ rc = open_cached_dir(xid, tcon, full_path,
+ cifs_sb, false, &cfid);
+ }
+ /* If it is a root and its handle is cached then use it */
+ if (!rc) {
+ if (cfid->file_all_info_is_valid) {
+ memcpy(&data->fi, &cfid->file_all_info,
+ sizeof(data->fi));
+ } else {
+ rc = SMB2_query_info(xid, tcon,
+ cfid->fid.persistent_fid,
+ cfid->fid.volatile_fid,
+ &data->fi);
+ }
+ close_cached_dir(cfid);
+ return rc;
}
- close_cached_dir(cfid);
- return rc;
+ cmds[num_cmds++] = SMB2_OP_QUERY_INFO;
+ } else {
+ cmds[num_cmds++] = SMB2_OP_POSIX_QUERY_INFO;
}
+ in_iov[0].iov_base = data;
+ in_iov[0].iov_len = sizeof(*data);
+ in_iov[1] = in_iov[0];
+ in_iov[2] = in_iov[0];
+
cifs_get_readable_path(tcon, full_path, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN,
- create_options, ACL_NO_MODE, data, SMB2_OP_QUERY_INFO, cfile,
- NULL, NULL, out_iov, out_buftype);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_READ_ATTRIBUTES,
+ FILE_OPEN, create_options, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
+ &oparms, in_iov, cmds, num_cmds,
+ cfile, out_iov, out_buftype, NULL);
hdr = out_iov[0].iov_base;
/*
* If first iov is unset, then SMB session was dropped or we've got a
@@ -620,18 +931,30 @@ int smb2_query_path_info(const unsigned int xid,
switch (rc) {
case 0:
case -EOPNOTSUPP:
+ /*
+ * BB TODO: When support for special files added to Samba
+ * re-verify this path.
+ */
rc = parse_create_response(data, cifs_sb, &out_iov[0]);
if (rc || !data->reparse_point)
goto out;
- create_options |= OPEN_REPARSE_POINT;
- /* Failed on a symbolic link - query a reparse point info */
+ cmds[num_cmds++] = SMB2_OP_QUERY_WSL_EA;
+ /*
+ * Skip SMB2_OP_GET_REPARSE if symlink already parsed in create
+ * response.
+ */
+ if (data->reparse.tag != IO_REPARSE_TAG_SYMLINK)
+ cmds[num_cmds++] = SMB2_OP_GET_REPARSE;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
+ FILE_READ_ATTRIBUTES | FILE_READ_EA,
+ FILE_OPEN, create_options |
+ OPEN_REPARSE_POINT, ACL_NO_MODE);
cifs_get_readable_path(tcon, full_path, &cfile);
rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_READ_ATTRIBUTES, FILE_OPEN,
- create_options, ACL_NO_MODE, data,
- SMB2_OP_QUERY_INFO, cfile, NULL, NULL,
- NULL, NULL);
+ &oparms, in_iov, cmds, num_cmds,
+ cfile, NULL, NULL, NULL);
break;
case -EREMOTE:
break;
@@ -649,93 +972,8 @@ int smb2_query_path_info(const unsigned int xid,
}
out:
- free_rsp_buf(out_buftype[0], out_iov[0].iov_base);
- free_rsp_buf(out_buftype[1], out_iov[1].iov_base);
- free_rsp_buf(out_buftype[2], out_iov[2].iov_base);
- return rc;
-}
-
-int smb311_posix_query_path_info(const unsigned int xid,
- struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb,
- const char *full_path,
- struct cifs_open_info_data *data,
- struct cifs_sid *owner,
- struct cifs_sid *group)
-{
- int rc;
- __u32 create_options = 0;
- struct cifsFileInfo *cfile;
- struct kvec out_iov[3] = {};
- int out_buftype[3] = {};
- __u8 *sidsbuf = NULL;
- __u8 *sidsbuf_end = NULL;
- size_t sidsbuflen = 0;
- size_t owner_len, group_len;
-
- data->adjust_tz = false;
- data->reparse_point = false;
-
- /*
- * BB TODO: Add support for using the cached root handle.
- * Create SMB2_query_posix_info worker function to do non-compounded query
- * when we already have an open file handle for this. For now this is fast enough
- * (always using the compounded version).
- */
-
- cifs_get_readable_path(tcon, full_path, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN,
- create_options, ACL_NO_MODE, data, SMB2_OP_POSIX_QUERY_INFO, cfile,
- &sidsbuf, &sidsbuflen, out_iov, out_buftype);
- /*
- * If first iov is unset, then SMB session was dropped or we've got a
- * cached open file (@cfile).
- */
- if (!out_iov[0].iov_base || out_buftype[0] == CIFS_NO_BUFFER)
- goto out;
-
- switch (rc) {
- case 0:
- case -EOPNOTSUPP:
- /* BB TODO: When support for special files added to Samba re-verify this path */
- rc = parse_create_response(data, cifs_sb, &out_iov[0]);
- if (rc || !data->reparse_point)
- goto out;
-
- create_options |= OPEN_REPARSE_POINT;
- /* Failed on a symbolic link - query a reparse point info */
- cifs_get_readable_path(tcon, full_path, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES,
- FILE_OPEN, create_options, ACL_NO_MODE, data,
- SMB2_OP_POSIX_QUERY_INFO, cfile,
- &sidsbuf, &sidsbuflen, NULL, NULL);
- break;
- }
-
-out:
- if (rc == 0) {
- sidsbuf_end = sidsbuf + sidsbuflen;
-
- owner_len = posix_info_sid_size(sidsbuf, sidsbuf_end);
- if (owner_len == -1) {
- rc = -EINVAL;
- goto out;
- }
- memcpy(owner, sidsbuf, owner_len);
-
- group_len = posix_info_sid_size(
- sidsbuf + owner_len, sidsbuf_end);
- if (group_len == -1) {
- rc = -EINVAL;
- goto out;
- }
- memcpy(group, sidsbuf + owner_len, group_len);
- }
-
- kfree(sidsbuf);
- free_rsp_buf(out_buftype[0], out_iov[0].iov_base);
- free_rsp_buf(out_buftype[1], out_iov[1].iov_base);
- free_rsp_buf(out_buftype[2], out_iov[2].iov_base);
+ for (i = 0; i < ARRAY_SIZE(out_buftype); i++)
+ free_rsp_buf(out_buftype[i], out_iov[i].iov_base);
return rc;
}
@@ -744,10 +982,14 @@ smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode,
struct cifs_tcon *tcon, const char *name,
struct cifs_sb_info *cifs_sb)
{
- return smb2_compound_op(xid, tcon, cifs_sb, name,
- FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR,
- NULL, NULL, NULL, NULL, NULL);
+ struct cifs_open_parms oparms;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name, FILE_WRITE_ATTRIBUTES,
+ FILE_CREATE, CREATE_NOT_FILE, mode);
+ return smb2_compound_op(xid, tcon, cifs_sb,
+ name, &oparms, NULL,
+ &(int){SMB2_OP_MKDIR}, 1,
+ NULL, NULL, NULL, NULL);
}
void
@@ -755,21 +997,26 @@ smb2_mkdir_setinfo(struct inode *inode, const char *name,
struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
const unsigned int xid)
{
- FILE_BASIC_INFO data;
+ struct cifs_open_parms oparms;
+ FILE_BASIC_INFO data = {};
struct cifsInodeInfo *cifs_i;
struct cifsFileInfo *cfile;
+ struct kvec in_iov;
u32 dosattrs;
int tmprc;
- memset(&data, 0, sizeof(data));
+ in_iov.iov_base = &data;
+ in_iov.iov_len = sizeof(data);
cifs_i = CIFS_I(inode);
dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
data.Attributes = cpu_to_le32(dosattrs);
cifs_get_writable_path(tcon, name, FIND_WR_ANY, &cfile);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name, FILE_WRITE_ATTRIBUTES,
+ FILE_CREATE, CREATE_NOT_FILE, ACL_NO_MODE);
tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
- FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, ACL_NO_MODE,
- &data, SMB2_OP_SET_INFO, cfile, NULL, NULL, NULL, NULL);
+ &oparms, &in_iov,
+ &(int){SMB2_OP_SET_INFO}, 1,
+ cfile, NULL, NULL, NULL);
if (tmprc == 0)
cifs_i->cifsAttrs = dosattrs;
}
@@ -778,27 +1025,48 @@ int
smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
struct cifs_sb_info *cifs_sb)
{
+ struct cifs_open_parms oparms;
+
drop_cached_dir_by_name(xid, tcon, name, cifs_sb);
- return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
- CREATE_NOT_FILE, ACL_NO_MODE,
- NULL, SMB2_OP_RMDIR, NULL, NULL, NULL, NULL, NULL);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name, DELETE,
+ FILE_OPEN, CREATE_NOT_FILE, ACL_NO_MODE);
+ return smb2_compound_op(xid, tcon, cifs_sb,
+ name, &oparms, NULL,
+ &(int){SMB2_OP_RMDIR}, 1,
+ NULL, NULL, NULL, NULL);
}
int
smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
- struct cifs_sb_info *cifs_sb)
+ struct cifs_sb_info *cifs_sb, struct dentry *dentry)
{
- return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
- CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
- ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL, NULL, NULL, NULL, NULL);
+ struct cifs_open_parms oparms;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name,
+ DELETE, FILE_OPEN,
+ CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
+ ACL_NO_MODE);
+ int rc = smb2_compound_op(xid, tcon, cifs_sb, name, &oparms,
+ NULL, &(int){SMB2_OP_DELETE}, 1,
+ NULL, NULL, NULL, dentry);
+ if (rc == -EINVAL) {
+ cifs_dbg(FYI, "invalid lease key, resending request without lease");
+ rc = smb2_compound_op(xid, tcon, cifs_sb, name, &oparms,
+ NULL, &(int){SMB2_OP_DELETE}, 1,
+ NULL, NULL, NULL, NULL);
+ }
+ return rc;
}
static int smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
const char *from_name, const char *to_name,
struct cifs_sb_info *cifs_sb,
__u32 create_options, __u32 access,
- int command, struct cifsFileInfo *cfile)
+ int command, struct cifsFileInfo *cfile,
+ struct dentry *dentry)
{
+ struct cifs_open_parms oparms;
+ struct kvec in_iov;
__le16 *smb2_to_name = NULL;
int rc;
@@ -807,9 +1075,13 @@ static int smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
rc = -ENOMEM;
goto smb2_rename_path;
}
- rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
- FILE_OPEN, create_options, ACL_NO_MODE, smb2_to_name,
- command, cfile, NULL, NULL, NULL, NULL);
+ in_iov.iov_base = smb2_to_name;
+ in_iov.iov_len = 2 * UniStrnlen((wchar_t *)smb2_to_name, PATH_MAX);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, from_name, access, FILE_OPEN,
+ create_options, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, from_name,
+ &oparms, &in_iov, &command, 1,
+ cfile, NULL, NULL, dentry);
smb2_rename_path:
kfree(smb2_to_name);
return rc;
@@ -827,8 +1099,14 @@ int smb2_rename_path(const unsigned int xid,
drop_cached_dir_by_name(xid, tcon, from_name, cifs_sb);
cifs_get_writable_path(tcon, from_name, FIND_WR_WITH_DELETE, &cfile);
- return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
- co, DELETE, SMB2_OP_RENAME, cfile);
+ int rc = smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
+ co, DELETE, SMB2_OP_RENAME, cfile, source_dentry);
+ if (rc == -EINVAL) {
+ cifs_dbg(FYI, "invalid lease key, resending request without lease");
+ rc = smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
+ co, DELETE, SMB2_OP_RENAME, cfile, NULL);
+ }
+ return rc;
}
int smb2_create_hardlink(const unsigned int xid,
@@ -841,31 +1119,51 @@ int smb2_create_hardlink(const unsigned int xid,
return smb2_set_path_attr(xid, tcon, from_name, to_name,
cifs_sb, co, FILE_READ_ATTRIBUTES,
- SMB2_OP_HARDLINK, NULL);
+ SMB2_OP_HARDLINK, NULL, NULL);
}
int
smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
const char *full_path, __u64 size,
- struct cifs_sb_info *cifs_sb, bool set_alloc)
+ struct cifs_sb_info *cifs_sb, bool set_alloc,
+ struct dentry *dentry)
{
- __le64 eof = cpu_to_le64(size);
+ struct cifs_open_parms oparms;
struct cifsFileInfo *cfile;
+ struct kvec in_iov;
+ __le64 eof = cpu_to_le64(size);
+ int rc;
+ in_iov.iov_base = &eof;
+ in_iov.iov_len = sizeof(eof);
cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
- return smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE,
- &eof, SMB2_OP_SET_EOF, cfile, NULL, NULL, NULL, NULL);
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_WRITE_DATA,
+ FILE_OPEN, 0, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_SET_EOF}, 1,
+ cfile, NULL, NULL, dentry);
+ if (rc == -EINVAL) {
+ cifs_dbg(FYI, "invalid lease key, resending request without lease");
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_SET_EOF}, 1,
+ cfile, NULL, NULL, NULL);
+ }
+ return rc;
}
int
smb2_set_file_info(struct inode *inode, const char *full_path,
FILE_BASIC_INFO *buf, const unsigned int xid)
{
+ struct cifs_open_parms oparms;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct tcon_link *tlink;
struct cifs_tcon *tcon;
struct cifsFileInfo *cfile;
+ struct kvec in_iov = { .iov_base = buf, .iov_len = sizeof(*buf), };
int rc;
if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
@@ -879,10 +1177,100 @@ smb2_set_file_info(struct inode *inode, const char *full_path,
tcon = tlink_tcon(tlink);
cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_WRITE_ATTRIBUTES, FILE_OPEN,
- 0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, cfile,
- NULL, NULL, NULL, NULL);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_WRITE_ATTRIBUTES,
+ FILE_OPEN, 0, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_SET_INFO}, 1,
+ cfile, NULL, NULL, NULL);
cifs_put_tlink(tlink);
return rc;
}
+
+struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid,
+ struct cifs_tcon *tcon,
+ const char *full_path,
+ struct kvec *reparse_iov,
+ struct kvec *xattr_iov)
+{
+ struct cifs_open_parms oparms;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+ struct cifsFileInfo *cfile;
+ struct inode *new = NULL;
+ struct kvec in_iov[2];
+ int cmds[2];
+ int rc;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
+ SYNCHRONIZE | DELETE |
+ FILE_READ_ATTRIBUTES |
+ FILE_WRITE_ATTRIBUTES,
+ FILE_CREATE,
+ CREATE_NOT_DIR | OPEN_REPARSE_POINT,
+ ACL_NO_MODE);
+ if (xattr_iov)
+ oparms.ea_cctx = xattr_iov;
+
+ cmds[0] = SMB2_OP_SET_REPARSE;
+ in_iov[0] = *reparse_iov;
+ in_iov[1].iov_base = data;
+ in_iov[1].iov_len = sizeof(*data);
+
+ if (tcon->posix_extensions) {
+ cmds[1] = SMB2_OP_POSIX_QUERY_INFO;
+ cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, &oparms,
+ in_iov, cmds, 2, cfile, NULL, NULL, NULL);
+ if (!rc) {
+ rc = smb311_posix_get_inode_info(&new, full_path,
+ data, sb, xid);
+ }
+ } else {
+ cmds[1] = SMB2_OP_QUERY_INFO;
+ cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, &oparms,
+ in_iov, cmds, 2, cfile, NULL, NULL, NULL);
+ if (!rc) {
+ rc = cifs_get_inode_info(&new, full_path,
+ data, sb, xid, NULL);
+ }
+ }
+ return rc ? ERR_PTR(rc) : new;
+}
+
+int smb2_query_reparse_point(const unsigned int xid,
+ struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb,
+ const char *full_path,
+ u32 *tag, struct kvec *rsp,
+ int *rsp_buftype)
+{
+ struct cifs_open_parms oparms;
+ struct cifs_open_info_data data = {};
+ struct cifsFileInfo *cfile;
+ struct kvec in_iov = { .iov_base = &data, .iov_len = sizeof(data), };
+ int rc;
+
+ cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
+
+ cifs_get_readable_path(tcon, full_path, &cfile);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_READ_ATTRIBUTES,
+ FILE_OPEN, OPEN_REPARSE_POINT, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_GET_REPARSE}, 1,
+ cfile, NULL, NULL, NULL);
+ if (rc)
+ goto out;
+
+ *tag = data.reparse.tag;
+ *rsp = data.reparse.io.iov;
+ *rsp_buftype = data.reparse.io.buftype;
+ memset(&data.reparse.io.iov, 0, sizeof(data.reparse.io.iov));
+ data.reparse.io.buftype = CIFS_NO_BUFFER;
+out:
+ cifs_free_open_info(&data);
+ return rc;
+}
diff --git a/fs/smb/client/smb2maperror.c b/fs/smb/client/smb2maperror.c
index 1a90dd78b238..ac1895358908 100644
--- a/fs/smb/client/smb2maperror.c
+++ b/fs/smb/client/smb2maperror.c
@@ -1210,6 +1210,8 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
{STATUS_INVALID_TASK_INDEX, -EIO, "STATUS_INVALID_TASK_INDEX"},
{STATUS_THREAD_ALREADY_IN_TASK, -EIO, "STATUS_THREAD_ALREADY_IN_TASK"},
{STATUS_CALLBACK_BYPASS, -EIO, "STATUS_CALLBACK_BYPASS"},
+ {STATUS_SERVER_UNAVAILABLE, -EAGAIN, "STATUS_SERVER_UNAVAILABLE"},
+ {STATUS_FILE_NOT_AVAILABLE, -EAGAIN, "STATUS_FILE_NOT_AVAILABLE"},
{STATUS_PORT_CLOSED, -EIO, "STATUS_PORT_CLOSED"},
{STATUS_MESSAGE_LOST, -EIO, "STATUS_MESSAGE_LOST"},
{STATUS_INVALID_MESSAGE, -EIO, "STATUS_INVALID_MESSAGE"},
diff --git a/fs/smb/client/smb2misc.c b/fs/smb/client/smb2misc.c
index cc72be5a93a9..677ef6f99a5b 100644
--- a/fs/smb/client/smb2misc.c
+++ b/fs/smb/client/smb2misc.c
@@ -767,7 +767,7 @@ smb2_cancelled_close_fid(struct work_struct *work)
if (rc)
cifs_tcon_dbg(VFS, "Close cancelled mid failed rc:%d\n", rc);
- cifs_put_tcon(tcon);
+ cifs_put_tcon(tcon, netfs_trace_tcon_ref_put_cancelled_close_fid);
kfree(cancelled);
}
@@ -811,6 +811,8 @@ smb2_handle_cancelled_close(struct cifs_tcon *tcon, __u64 persistent_fid,
if (tcon->tc_count <= 0) {
struct TCP_Server_Info *server = NULL;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_see_cancelled_close);
WARN_ONCE(tcon->tc_count < 0, "tcon refcount is negative");
spin_unlock(&cifs_tcp_ses_lock);
@@ -823,12 +825,14 @@ smb2_handle_cancelled_close(struct cifs_tcon *tcon, __u64 persistent_fid,
return 0;
}
tcon->tc_count++;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_get_cancelled_close);
spin_unlock(&cifs_tcp_ses_lock);
rc = __smb2_handle_cancelled_cmd(tcon, SMB2_CLOSE_HE, 0,
persistent_fid, volatile_fid);
if (rc)
- cifs_put_tcon(tcon);
+ cifs_put_tcon(tcon, netfs_trace_tcon_ref_put_cancelled_close);
return rc;
}
@@ -856,7 +860,7 @@ smb2_handle_cancelled_mid(struct mid_q_entry *mid, struct TCP_Server_Info *serve
rsp->PersistentFileId,
rsp->VolatileFileId);
if (rc)
- cifs_put_tcon(tcon);
+ cifs_put_tcon(tcon, netfs_trace_tcon_ref_put_cancelled_mid);
return rc;
}
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index 04fea874d0a3..66cfce456263 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -28,6 +28,7 @@
#include "fscache.h"
#include "fs_context.h"
#include "cached_dir.h"
+#include "reparse.h"
/* Change credits for different ops and return the total number of credits */
static int
@@ -1108,7 +1109,7 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
{
struct smb2_compound_vars *vars;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
struct smb_rqst *rqst;
struct kvec *rsp_iov;
__le16 *utf16_path = NULL;
@@ -1124,6 +1125,13 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
struct smb2_file_full_ea_info *ea = NULL;
struct smb2_query_info_rsp *rsp;
int rc, used_len = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = CIFS_CP_CREATE_CLOSE_OP;
+ oplock = SMB2_OPLOCK_LEVEL_NONE;
+ server = cifs_pick_channel(ses);
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
@@ -1197,6 +1205,7 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
.disposition = FILE_OPEN,
.create_options = cifs_create_options(cifs_sb, 0),
.fid = &fid,
+ .replay = !!(retries),
};
rc = SMB2_open_init(tcon, server,
@@ -1244,6 +1253,12 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
goto sea_exit;
smb2_set_related(&rqst[2]);
+ if (retries) {
+ smb2_set_replay(server, &rqst[0]);
+ smb2_set_replay(server, &rqst[1]);
+ smb2_set_replay(server, &rqst[2]);
+ }
+
rc = compound_send_recv(xid, ses, server,
flags, 3, rqst,
resp_buftype, rsp_iov);
@@ -1260,6 +1275,11 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
kfree(vars);
out_free_path:
kfree(utf16_path);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
#endif
@@ -1485,7 +1505,7 @@ smb2_ioctl_query_info(const unsigned int xid,
struct smb_rqst *rqst;
struct kvec *rsp_iov;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
char __user *arg = (char __user *)p;
struct smb_query_info qi;
struct smb_query_info __user *pqi;
@@ -1502,6 +1522,13 @@ smb2_ioctl_query_info(const unsigned int xid,
void *data[2];
int create_options = is_dir ? CREATE_NOT_FILE : CREATE_NOT_DIR;
void (*free_req1_func)(struct smb_rqst *r);
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = CIFS_CP_CREATE_CLOSE_OP;
+ oplock = SMB2_OPLOCK_LEVEL_NONE;
+ server = cifs_pick_channel(ses);
vars = kzalloc(sizeof(*vars), GFP_ATOMIC);
if (vars == NULL)
@@ -1545,6 +1572,7 @@ smb2_ioctl_query_info(const unsigned int xid,
.disposition = FILE_OPEN,
.create_options = cifs_create_options(cifs_sb, create_options),
.fid = &fid,
+ .replay = !!(retries),
};
if (qi.flags & PASSTHRU_FSCTL) {
@@ -1642,6 +1670,12 @@ smb2_ioctl_query_info(const unsigned int xid,
goto free_req_1;
smb2_set_related(&rqst[2]);
+ if (retries) {
+ smb2_set_replay(server, &rqst[0]);
+ smb2_set_replay(server, &rqst[1]);
+ smb2_set_replay(server, &rqst[2]);
+ }
+
rc = compound_send_recv(xid, ses, server,
flags, 3, rqst,
resp_buftype, rsp_iov);
@@ -1702,6 +1736,11 @@ smb2_ioctl_query_info(const unsigned int xid,
kfree(buffer);
free_vars:
kfree(vars);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -1932,7 +1971,6 @@ static int
smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
struct cifsFileInfo *cfile, __u64 size, bool set_alloc)
{
- __le64 eof = cpu_to_le64(size);
struct inode *inode;
/*
@@ -1949,7 +1987,7 @@ smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
}
return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, cfile->pid, &eof);
+ cfile->fid.volatile_fid, cfile->pid, size);
}
static int
@@ -2229,8 +2267,14 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_open_parms oparms;
struct smb2_query_directory_rsp *qd_rsp = NULL;
struct smb2_create_rsp *op_rsp = NULL;
- struct TCP_Server_Info *server = cifs_pick_channel(tcon->ses);
- int retry_count = 0;
+ struct TCP_Server_Info *server;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ oplock = SMB2_OPLOCK_LEVEL_NONE;
+ server = cifs_pick_channel(tcon->ses);
utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
if (!utf16_path)
@@ -2255,6 +2299,7 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
.disposition = FILE_OPEN,
.create_options = cifs_create_options(cifs_sb, 0),
.fid = fid,
+ .replay = !!(retries),
};
rc = SMB2_open_init(tcon, server,
@@ -2280,14 +2325,15 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
smb2_set_related(&rqst[1]);
-again:
+ if (retries) {
+ smb2_set_replay(server, &rqst[0]);
+ smb2_set_replay(server, &rqst[1]);
+ }
+
rc = compound_send_recv(xid, tcon->ses, server,
flags, 2, rqst,
resp_buftype, rsp_iov);
- if (rc == -EAGAIN && retry_count++ < 10)
- goto again;
-
/* If the open failed there is nothing to do */
op_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base;
if (op_rsp == NULL || op_rsp->hdr.Status != STATUS_SUCCESS) {
@@ -2335,6 +2381,11 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
SMB2_query_directory_free(&rqst[1]);
free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -2461,6 +2512,22 @@ smb2_oplock_response(struct cifs_tcon *tcon, __u64 persistent_fid,
CIFS_CACHE_READ(cinode) ? 1 : 0);
}
+void
+smb2_set_replay(struct TCP_Server_Info *server, struct smb_rqst *rqst)
+{
+ struct smb2_hdr *shdr;
+
+ if (server->dialect < SMB30_PROT_ID)
+ return;
+
+ shdr = (struct smb2_hdr *)(rqst->rq_iov[0].iov_base);
+ if (shdr == NULL) {
+ cifs_dbg(FYI, "shdr NULL in smb2_set_related\n");
+ return;
+ }
+ shdr->Flags |= SMB2_FLAGS_REPLAY_OPERATION;
+}
+
void
smb2_set_related(struct smb_rqst *rqst)
{
@@ -2533,6 +2600,27 @@ smb2_set_next_command(struct cifs_tcon *tcon, struct smb_rqst *rqst)
shdr->NextCommand = cpu_to_le32(len);
}
+/*
+ * helper function for exponential backoff and check if replayable
+ */
+bool smb2_should_replay(struct cifs_tcon *tcon,
+ int *pretries,
+ int *pcur_sleep)
+{
+ if (!pretries || !pcur_sleep)
+ return false;
+
+ if (tcon->retry || (*pretries)++ < tcon->ses->server->retrans) {
+ msleep(*pcur_sleep);
+ (*pcur_sleep) = ((*pcur_sleep) << 1);
+ if ((*pcur_sleep) > CIFS_MAX_SLEEP)
+ (*pcur_sleep) = CIFS_MAX_SLEEP;
+ return true;
+ }
+
+ return false;
+}
+
/*
* Passes the query info response back to the caller on success.
* Caller need to free this with free_rsp_buf().
@@ -2546,7 +2634,7 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
{
struct smb2_compound_vars *vars;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
int flags = CIFS_CP_CREATE_CLOSE_OP;
struct smb_rqst *rqst;
int resp_buftype[3];
@@ -2557,6 +2645,13 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
int rc;
__le16 *utf16_path;
struct cached_fid *cfid = NULL;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = CIFS_CP_CREATE_CLOSE_OP;
+ oplock = SMB2_OPLOCK_LEVEL_NONE;
+ server = cifs_pick_channel(ses);
if (!path)
path = "";
@@ -2593,6 +2688,7 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
.disposition = FILE_OPEN,
.create_options = cifs_create_options(cifs_sb, 0),
.fid = &fid,
+ .replay = !!(retries),
};
rc = SMB2_open_init(tcon, server,
@@ -2637,6 +2733,14 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
goto qic_exit;
smb2_set_related(&rqst[2]);
+ if (retries) {
+ if (!cfid) {
+ smb2_set_replay(server, &rqst[0]);
+ smb2_set_replay(server, &rqst[2]);
+ }
+ smb2_set_replay(server, &rqst[1]);
+ }
+
if (cfid) {
rc = compound_send_recv(xid, ses, server,
flags, 1, &rqst[1],
@@ -2669,6 +2773,11 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
kfree(vars);
out_free_path:
kfree(utf16_path);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -2806,8 +2915,11 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses,
tcon = list_first_entry_or_null(&ses->tcon_list,
struct cifs_tcon,
tcon_list);
- if (tcon)
+ if (tcon) {
tcon->tc_count++;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_get_dfs_refer);
+ }
spin_unlock(&cifs_tcp_ses_lock);
}
@@ -2871,6 +2983,8 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses,
/* ipc tcons are not refcounted */
spin_lock(&cifs_tcp_ses_lock);
tcon->tc_count--;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_dec_dfs_refer);
/* tc_count can never go negative */
WARN_ON(tcon->tc_count < 0);
spin_unlock(&cifs_tcp_ses_lock);
@@ -2881,260 +2995,6 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses,
return rc;
}
-/* See MS-FSCC 2.1.2.6 for the 'NFS' style reparse tags */
-static int parse_reparse_posix(struct reparse_posix_data *buf,
- struct cifs_sb_info *cifs_sb,
- struct cifs_open_info_data *data)
-{
- unsigned int len;
- u64 type;
-
- switch ((type = le64_to_cpu(buf->InodeType))) {
- case NFS_SPECFILE_LNK:
- len = le16_to_cpu(buf->ReparseDataLength);
- data->symlink_target = cifs_strndup_from_utf16(buf->DataBuffer,
- len, true,
- cifs_sb->local_nls);
- if (!data->symlink_target)
- return -ENOMEM;
- convert_delimiter(data->symlink_target, '/');
- cifs_dbg(FYI, "%s: target path: %s\n",
- __func__, data->symlink_target);
- break;
- case NFS_SPECFILE_CHR:
- case NFS_SPECFILE_BLK:
- case NFS_SPECFILE_FIFO:
- case NFS_SPECFILE_SOCK:
- break;
- default:
- cifs_dbg(VFS, "%s: unhandled inode type: 0x%llx\n",
- __func__, type);
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-static int parse_reparse_symlink(struct reparse_symlink_data_buffer *sym,
- u32 plen, bool unicode,
- struct cifs_sb_info *cifs_sb,
- struct cifs_open_info_data *data)
-{
- unsigned int len;
- unsigned int offs;
-
- /* We handle Symbolic Link reparse tag here. See: MS-FSCC 2.1.2.4 */
-
- offs = le16_to_cpu(sym->SubstituteNameOffset);
- len = le16_to_cpu(sym->SubstituteNameLength);
- if (offs + 20 > plen || offs + len + 20 > plen) {
- cifs_dbg(VFS, "srv returned malformed symlink buffer\n");
- return -EIO;
- }
-
- data->symlink_target = cifs_strndup_from_utf16(sym->PathBuffer + offs,
- len, unicode,
- cifs_sb->local_nls);
- if (!data->symlink_target)
- return -ENOMEM;
-
- convert_delimiter(data->symlink_target, '/');
- cifs_dbg(FYI, "%s: target path: %s\n", __func__, data->symlink_target);
-
- return 0;
-}
-
-int parse_reparse_point(struct reparse_data_buffer *buf,
- u32 plen, struct cifs_sb_info *cifs_sb,
- bool unicode, struct cifs_open_info_data *data)
-{
- if (plen < sizeof(*buf)) {
- cifs_dbg(VFS, "%s: reparse buffer is too small. Must be at least 8 bytes but was %d\n",
- __func__, plen);
- return -EIO;
- }
-
- if (plen < le16_to_cpu(buf->ReparseDataLength) + sizeof(*buf)) {
- cifs_dbg(VFS, "%s: invalid reparse buf length: %d\n",
- __func__, plen);
- return -EIO;
- }
-
- data->reparse.buf = buf;
-
- /* See MS-FSCC 2.1.2 */
- switch (le32_to_cpu(buf->ReparseTag)) {
- case IO_REPARSE_TAG_NFS:
- return parse_reparse_posix((struct reparse_posix_data *)buf,
- cifs_sb, data);
- case IO_REPARSE_TAG_SYMLINK:
- return parse_reparse_symlink(
- (struct reparse_symlink_data_buffer *)buf,
- plen, unicode, cifs_sb, data);
- case IO_REPARSE_TAG_LX_SYMLINK:
- case IO_REPARSE_TAG_AF_UNIX:
- case IO_REPARSE_TAG_LX_FIFO:
- case IO_REPARSE_TAG_LX_CHR:
- case IO_REPARSE_TAG_LX_BLK:
- return 0;
- default:
- cifs_dbg(VFS, "%s: unhandled reparse tag: 0x%08x\n",
- __func__, le32_to_cpu(buf->ReparseTag));
- return -EOPNOTSUPP;
- }
-}
-
-static int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb,
- struct kvec *rsp_iov,
- struct cifs_open_info_data *data)
-{
- struct reparse_data_buffer *buf;
- struct smb2_ioctl_rsp *io = rsp_iov->iov_base;
- u32 plen = le32_to_cpu(io->OutputCount);
-
- buf = (struct reparse_data_buffer *)((u8 *)io +
- le32_to_cpu(io->OutputOffset));
- return parse_reparse_point(buf, plen, cifs_sb, true, data);
-}
-
-static int smb2_query_reparse_point(const unsigned int xid,
- struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb,
- const char *full_path,
- u32 *tag, struct kvec *rsp,
- int *rsp_buftype)
-{
- struct smb2_compound_vars *vars;
- int rc;
- __le16 *utf16_path = NULL;
- __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- struct cifs_fid fid;
- struct TCP_Server_Info *server = cifs_pick_channel(tcon->ses);
- int flags = CIFS_CP_CREATE_CLOSE_OP;
- struct smb_rqst *rqst;
- int resp_buftype[3];
- struct kvec *rsp_iov;
- struct smb2_ioctl_rsp *ioctl_rsp;
- struct reparse_data_buffer *reparse_buf;
- u32 off, count, len;
-
- cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
-
- if (smb3_encryption_required(tcon))
- flags |= CIFS_TRANSFORM_REQ;
-
- utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
- if (!utf16_path)
- return -ENOMEM;
-
- resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
- vars = kzalloc(sizeof(*vars), GFP_KERNEL);
- if (!vars) {
- rc = -ENOMEM;
- goto out_free_path;
- }
- rqst = vars->rqst;
- rsp_iov = vars->rsp_iov;
-
- /*
- * setup smb2open - TODO add optimization to call cifs_get_readable_path
- * to see if there is a handle already open that we can use
- */
- rqst[0].rq_iov = vars->open_iov;
- rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE;
-
- oparms = (struct cifs_open_parms) {
- .tcon = tcon,
- .path = full_path,
- .desired_access = FILE_READ_ATTRIBUTES,
- .disposition = FILE_OPEN,
- .create_options = cifs_create_options(cifs_sb, OPEN_REPARSE_POINT),
- .fid = &fid,
- };
-
- rc = SMB2_open_init(tcon, server,
- &rqst[0], &oplock, &oparms, utf16_path);
- if (rc)
- goto query_rp_exit;
- smb2_set_next_command(tcon, &rqst[0]);
-
-
- /* IOCTL */
- rqst[1].rq_iov = vars->io_iov;
- rqst[1].rq_nvec = SMB2_IOCTL_IOV_SIZE;
-
- rc = SMB2_ioctl_init(tcon, server,
- &rqst[1], COMPOUND_FID,
- COMPOUND_FID, FSCTL_GET_REPARSE_POINT, NULL, 0,
- CIFSMaxBufSize -
- MAX_SMB2_CREATE_RESPONSE_SIZE -
- MAX_SMB2_CLOSE_RESPONSE_SIZE);
- if (rc)
- goto query_rp_exit;
-
- smb2_set_next_command(tcon, &rqst[1]);
- smb2_set_related(&rqst[1]);
-
- /* Close */
- rqst[2].rq_iov = &vars->close_iov;
- rqst[2].rq_nvec = 1;
-
- rc = SMB2_close_init(tcon, server,
- &rqst[2], COMPOUND_FID, COMPOUND_FID, false);
- if (rc)
- goto query_rp_exit;
-
- smb2_set_related(&rqst[2]);
-
- rc = compound_send_recv(xid, tcon->ses, server,
- flags, 3, rqst,
- resp_buftype, rsp_iov);
-
- ioctl_rsp = rsp_iov[1].iov_base;
-
- /*
- * Open was successful and we got an ioctl response.
- */
- if (rc == 0) {
- /* See MS-FSCC 2.3.23 */
- off = le32_to_cpu(ioctl_rsp->OutputOffset);
- count = le32_to_cpu(ioctl_rsp->OutputCount);
- if (check_add_overflow(off, count, &len) ||
- len > rsp_iov[1].iov_len) {
- cifs_tcon_dbg(VFS, "%s: invalid ioctl: off=%d count=%d\n",
- __func__, off, count);
- rc = -EIO;
- goto query_rp_exit;
- }
-
- reparse_buf = (void *)((u8 *)ioctl_rsp + off);
- len = sizeof(*reparse_buf);
- if (count < len ||
- count < le16_to_cpu(reparse_buf->ReparseDataLength) + len) {
- cifs_tcon_dbg(VFS, "%s: invalid ioctl: off=%d count=%d\n",
- __func__, off, count);
- rc = -EIO;
- goto query_rp_exit;
- }
- *tag = le32_to_cpu(reparse_buf->ReparseTag);
- *rsp = rsp_iov[1];
- *rsp_buftype = resp_buftype[1];
- resp_buftype[1] = CIFS_NO_BUFFER;
- }
-
- query_rp_exit:
- SMB2_open_free(&rqst[0]);
- SMB2_ioctl_free(&rqst[1]);
- SMB2_close_free(&rqst[2]);
- free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
- free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
- free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
- kfree(vars);
-out_free_path:
- kfree(utf16_path);
- return rc;
-}
-
static struct cifs_ntsd *
get_smb2_acl_by_fid(struct cifs_sb_info *cifs_sb,
const struct cifs_fid *cifsfid, u32 *pacllen, u32 info)
@@ -3335,7 +3195,6 @@ static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon,
unsigned long long new_size;
long rc;
unsigned int xid;
- __le64 eof;
xid = get_xid();
@@ -3365,9 +3224,8 @@ static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon,
*/
new_size = offset + len;
if (keep_size == false && (unsigned long long)i_size_read(inode) < new_size) {
- eof = cpu_to_le64(new_size);
rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, cfile->pid, &eof);
+ cfile->fid.volatile_fid, cfile->pid, new_size);
if (rc >= 0) {
truncate_setsize(inode, new_size);
fscache_resize_cookie(cifs_inode_cookie(inode), new_size);
@@ -3560,7 +3418,7 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
struct cifsFileInfo *cfile = file->private_data;
long rc = -EOPNOTSUPP;
unsigned int xid;
- __le64 eof;
+ loff_t new_eof;
xid = get_xid();
@@ -3589,14 +3447,14 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
if (cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)
smb2_set_sparse(xid, tcon, cfile, inode, false);
- eof = cpu_to_le64(off + len);
+ new_eof = off + len;
rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, cfile->pid, &eof);
+ cfile->fid.volatile_fid, cfile->pid, new_eof);
if (rc == 0) {
- cifsi->server_eof = off + len;
- cifs_setsize(inode, off + len);
+ cifsi->server_eof = new_eof;
+ cifs_setsize(inode, new_eof);
cifs_truncate_page(inode->i_mapping, inode->i_size);
- truncate_setsize(inode, off + len);
+ truncate_setsize(inode, new_eof);
}
goto out;
}
@@ -3687,8 +3545,7 @@ static long smb3_collapse_range(struct file *file, struct cifs_tcon *tcon,
struct inode *inode = file_inode(file);
struct cifsFileInfo *cfile = file->private_data;
struct cifsInodeInfo *cifsi = CIFS_I(inode);
- __le64 eof;
- loff_t old_eof;
+ loff_t old_eof, new_eof;
xid = get_xid();
@@ -3713,9 +3570,9 @@ static long smb3_collapse_range(struct file *file, struct cifs_tcon *tcon,
if (rc < 0)
goto out_2;
- eof = cpu_to_le64(old_eof - len);
+ new_eof = old_eof - len;
rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, cfile->pid, &eof);
+ cfile->fid.volatile_fid, cfile->pid, new_eof);
if (rc < 0)
goto out_2;
@@ -3739,8 +3596,7 @@ static long smb3_insert_range(struct file *file, struct cifs_tcon *tcon,
unsigned int xid;
struct cifsFileInfo *cfile = file->private_data;
struct inode *inode = file_inode(file);
- __le64 eof;
- __u64 count, old_eof;
+ __u64 count, old_eof, new_eof;
xid = get_xid();
@@ -3753,20 +3609,20 @@ static long smb3_insert_range(struct file *file, struct cifs_tcon *tcon,
}
count = old_eof - off;
- eof = cpu_to_le64(old_eof + len);
+ new_eof = old_eof + len;
filemap_invalidate_lock(inode->i_mapping);
- rc = filemap_write_and_wait_range(inode->i_mapping, off, old_eof + len - 1);
+ rc = filemap_write_and_wait_range(inode->i_mapping, off, new_eof - 1);
if (rc < 0)
goto out_2;
truncate_pagecache_range(inode, off, old_eof);
rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, cfile->pid, &eof);
+ cfile->fid.volatile_fid, cfile->pid, new_eof);
if (rc < 0)
goto out_2;
- truncate_setsize(inode, old_eof + len);
+ truncate_setsize(inode, new_eof);
fscache_resize_cookie(cifs_inode_cookie(inode), i_size_read(inode));
rc = smb2_copychunk_range(xid, cfile, cfile, off, count, off + len);
@@ -5105,98 +4961,107 @@ static int smb2_next_header(struct TCP_Server_Info *server, char *buf,
return 0;
}
-static int
-smb2_make_node(unsigned int xid, struct inode *inode,
- struct dentry *dentry, struct cifs_tcon *tcon,
- const char *full_path, umode_t mode, dev_t dev)
+static int __cifs_sfu_make_node(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev)
{
+ struct TCP_Server_Info *server = tcon->ses->server;
+ struct cifs_open_parms oparms;
+ struct cifs_io_parms io_parms = {};
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
- int rc = -EPERM;
- struct cifs_open_info_data buf = {};
- struct cifs_io_parms io_parms = {0};
- __u32 oplock = 0;
struct cifs_fid fid;
- struct cifs_open_parms oparms;
unsigned int bytes_written;
- struct win_dev *pdev;
+ struct win_dev pdev = {};
struct kvec iov[2];
+ __u32 oplock = server->oplocks ? REQ_OPLOCK : 0;
+ int rc;
- /*
- * Check if mounted with mount parm 'sfu' mount parm.
- * SFU emulation should work with all servers, but only
- * supports block and char device (no socket & fifo),
- * and was used by default in earlier versions of Windows
- */
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
- return rc;
+ switch (mode & S_IFMT) {
+ case S_IFCHR:
+ strscpy(pdev.type, "IntxCHR", strlen("IntxChr"));
+ pdev.major = cpu_to_le64(MAJOR(dev));
+ pdev.minor = cpu_to_le64(MINOR(dev));
+ break;
+ case S_IFBLK:
+ strscpy(pdev.type, "IntxBLK", strlen("IntxBLK"));
+ pdev.major = cpu_to_le64(MAJOR(dev));
+ pdev.minor = cpu_to_le64(MINOR(dev));
+ break;
+ case S_IFIFO:
+ strscpy(pdev.type, "LnxFIFO", strlen("LnxFIFO"));
+ break;
+ default:
+ return -EPERM;
+ }
- /*
- * TODO: Add ability to create instead via reparse point. Windows (e.g.
- * their current NFS server) uses this approach to expose special files
- * over SMB2/SMB3 and Samba will do this with SMB3.1.1 POSIX Extensions
- */
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, GENERIC_WRITE,
+ FILE_CREATE, CREATE_NOT_DIR |
+ CREATE_OPTION_SPECIAL, ACL_NO_MODE);
+ oparms.fid = &fid;
- if (!S_ISCHR(mode) && !S_ISBLK(mode) && !S_ISFIFO(mode))
+ rc = server->ops->open(xid, &oparms, &oplock, NULL);
+ if (rc)
return rc;
- cifs_dbg(FYI, "sfu compat create special file\n");
+ io_parms.pid = current->tgid;
+ io_parms.tcon = tcon;
+ io_parms.length = sizeof(pdev);
+ iov[1].iov_base = &pdev;
+ iov[1].iov_len = sizeof(pdev);
- oparms = (struct cifs_open_parms) {
- .tcon = tcon,
- .cifs_sb = cifs_sb,
- .desired_access = GENERIC_WRITE,
- .create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR |
- CREATE_OPTION_SPECIAL),
- .disposition = FILE_CREATE,
- .path = full_path,
- .fid = &fid,
- };
+ rc = server->ops->sync_write(xid, &fid, &io_parms,
+ &bytes_written, iov, 1);
+ server->ops->close(xid, tcon, &fid);
+ return rc;
+}
- if (tcon->ses->server->oplocks)
- oplock = REQ_OPLOCK;
- else
- oplock = 0;
- rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, &buf);
+int cifs_sfu_make_node(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev)
+{
+ struct inode *new = NULL;
+ int rc;
+
+ rc = __cifs_sfu_make_node(xid, inode, dentry, tcon,
+ full_path, mode, dev);
if (rc)
return rc;
+ if (tcon->posix_extensions) {
+ rc = smb311_posix_get_inode_info(&new, full_path, NULL,
+ inode->i_sb, xid);
+ } else if (tcon->unix_ext) {
+ rc = cifs_get_inode_info_unix(&new, full_path,
+ inode->i_sb, xid);
+ } else {
+ rc = cifs_get_inode_info(&new, full_path, NULL,
+ inode->i_sb, xid, NULL);
+ }
+ if (!rc)
+ d_instantiate(dentry, new);
+ return rc;
+}
+
+static int smb2_make_node(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ int rc;
+
/*
- * BB Do not bother to decode buf since no local inode yet to put
- * timestamps in, but we can reuse it safely.
+ * Check if mounted with mount parm 'sfu' mount parm.
+ * SFU emulation should work with all servers, but only
+ * supports block and char device (no socket & fifo),
+ * and was used by default in earlier versions of Windows
*/
-
- pdev = (struct win_dev *)&buf.fi;
- io_parms.pid = current->tgid;
- io_parms.tcon = tcon;
- io_parms.offset = 0;
- io_parms.length = sizeof(struct win_dev);
- iov[1].iov_base = &buf.fi;
- iov[1].iov_len = sizeof(struct win_dev);
- if (S_ISCHR(mode)) {
- memcpy(pdev->type, "IntxCHR", 8);
- pdev->major = cpu_to_le64(MAJOR(dev));
- pdev->minor = cpu_to_le64(MINOR(dev));
- rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
- &bytes_written, iov, 1);
- } else if (S_ISBLK(mode)) {
- memcpy(pdev->type, "IntxBLK", 8);
- pdev->major = cpu_to_le64(MAJOR(dev));
- pdev->minor = cpu_to_le64(MINOR(dev));
- rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
- &bytes_written, iov, 1);
- } else if (S_ISFIFO(mode)) {
- memcpy(pdev->type, "LnxFIFO", 8);
- pdev->major = 0;
- pdev->minor = 0;
- rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
- &bytes_written, iov, 1);
- }
- tcon->ses->server->ops->close(xid, tcon, &fid);
- d_drop(dentry);
-
- /* FIXME: add code here to set EAs */
-
- cifs_free_open_info(&buf);
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ rc = cifs_sfu_make_node(xid, inode, dentry, tcon,
+ full_path, mode, dev);
+ } else {
+ rc = smb2_mknod_reparse(xid, inode, dentry, tcon,
+ full_path, mode, dev);
+ }
return rc;
}
@@ -5253,6 +5118,7 @@ struct smb_version_operations smb20_operations = {
.parse_reparse_point = smb2_parse_reparse_point,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
+ .create_reparse_symlink = smb2_create_reparse_symlink,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
@@ -5355,6 +5221,7 @@ struct smb_version_operations smb21_operations = {
.parse_reparse_point = smb2_parse_reparse_point,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
+ .create_reparse_symlink = smb2_create_reparse_symlink,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
@@ -5461,6 +5328,7 @@ struct smb_version_operations smb30_operations = {
.parse_reparse_point = smb2_parse_reparse_point,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
+ .create_reparse_symlink = smb2_create_reparse_symlink,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
@@ -5576,6 +5444,7 @@ struct smb_version_operations smb311_operations = {
.parse_reparse_point = smb2_parse_reparse_point,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
+ .create_reparse_symlink = smb2_create_reparse_symlink,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index 70530108b9bb..a5efce03cb58 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -743,7 +743,7 @@ assemble_neg_contexts(struct smb2_negotiate_req *req,
pneg_ctxt += sizeof(struct smb2_posix_neg_context);
neg_context_count++;
- if (server->compress_algorithm) {
+ if (server->compression.requested) {
build_compression_ctxt((struct smb2_compression_capabilities_context *)
pneg_ctxt);
ctxt_len = ALIGN(sizeof(struct smb2_compression_capabilities_context), 8);
@@ -791,6 +791,9 @@ static void decode_compress_ctx(struct TCP_Server_Info *server,
struct smb2_compression_capabilities_context *ctxt)
{
unsigned int len = le16_to_cpu(ctxt->DataLength);
+ __le16 alg;
+
+ server->compression.enabled = false;
/*
* Caller checked that DataLength remains within SMB boundary. We still
@@ -801,15 +804,22 @@ static void decode_compress_ctx(struct TCP_Server_Info *server,
pr_warn_once("server sent bad compression cntxt\n");
return;
}
+
if (le16_to_cpu(ctxt->CompressionAlgorithmCount) != 1) {
- pr_warn_once("Invalid SMB3 compress algorithm count\n");
+ pr_warn_once("invalid SMB3 compress algorithm count\n");
return;
}
- if (le16_to_cpu(ctxt->CompressionAlgorithms[0]) > 3) {
- pr_warn_once("unknown compression algorithm\n");
+
+ alg = ctxt->CompressionAlgorithms[0];
+
+ /* 'NONE' (0) compressor type is never negotiated */
+ if (alg == 0 || le16_to_cpu(alg) > 3) {
+ pr_warn_once("invalid compression algorithm '%u'\n", alg);
return;
}
- server->compress_algorithm = ctxt->CompressionAlgorithms[0];
+
+ server->compression.alg = alg;
+ server->compression.enabled = true;
}
static int decode_encrypt_ctx(struct TCP_Server_Info *server,
@@ -2019,10 +2029,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
__le16 *unc_path = NULL;
int flags = 0;
unsigned int total_len;
- struct TCP_Server_Info *server;
-
- /* always use master channel */
- server = ses->server;
+ struct TCP_Server_Info *server = cifs_pick_channel(ses);
cifs_dbg(FYI, "TCON\n");
@@ -2155,6 +2162,7 @@ SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon)
struct smb2_tree_disconnect_req *req; /* response is trivial */
int rc = 0;
struct cifs_ses *ses = tcon->ses;
+ struct TCP_Server_Info *server = cifs_pick_channel(ses);
int flags = 0;
unsigned int total_len;
struct kvec iov[1];
@@ -2177,7 +2185,7 @@ SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon)
invalidate_all_cached_dirs(tcon);
- rc = smb2_plain_req_init(SMB2_TREE_DISCONNECT, tcon, ses->server,
+ rc = smb2_plain_req_init(SMB2_TREE_DISCONNECT, tcon, server,
(void **) &req,
&total_len);
if (rc)
@@ -2195,7 +2203,7 @@ SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon)
rqst.rq_iov = iov;
rqst.rq_nvec = 1;
- rc = cifs_send_recv(xid, ses, ses->server,
+ rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buf_type, flags, &rsp_iov);
cifs_small_buf_release(req);
if (rc) {
@@ -2423,8 +2431,13 @@ create_durable_v2_buf(struct cifs_open_parms *oparms)
*/
buf->dcontext.Timeout = cpu_to_le32(oparms->tcon->handle_timeout);
buf->dcontext.Flags = cpu_to_le32(SMB2_DHANDLE_FLAG_PERSISTENT);
- generate_random_uuid(buf->dcontext.CreateGuid);
- memcpy(pfid->create_guid, buf->dcontext.CreateGuid, 16);
+
+ /* for replay, we should not overwrite the existing create guid */
+ if (!oparms->replay) {
+ generate_random_uuid(buf->dcontext.CreateGuid);
+ memcpy(pfid->create_guid, buf->dcontext.CreateGuid, 16);
+ } else
+ memcpy(buf->dcontext.CreateGuid, pfid->create_guid, 16);
/* SMB2_CREATE_DURABLE_HANDLE_REQUEST is "DH2Q" */
buf->Name[0] = 'D';
@@ -2729,6 +2742,17 @@ add_query_id_context(struct kvec *iov, unsigned int *num_iovec)
return 0;
}
+static void add_ea_context(struct cifs_open_parms *oparms,
+ struct kvec *rq_iov, unsigned int *num_iovs)
+{
+ struct kvec *iov = oparms->ea_cctx;
+
+ if (iov && iov->iov_base && iov->iov_len) {
+ rq_iov[(*num_iovs)++] = *iov;
+ memset(iov, 0, sizeof(*iov));
+ }
+}
+
static int
alloc_path_with_tree_prefix(__le16 **out_path, int *out_size, int *out_len,
const char *treename, const __le16 *path)
@@ -2797,7 +2821,14 @@ int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,
int flags = 0;
unsigned int total_len;
__le16 *utf16_path = NULL;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ n_iov = 2;
+ server = cifs_pick_channel(ses);
cifs_dbg(FYI, "mkdir\n");
@@ -2901,6 +2932,10 @@ int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,
/* no need to inc num_remote_opens because we close it just below */
trace_smb3_posix_mkdir_enter(xid, tcon->tid, ses->Suid, full_path, CREATE_NOT_FILE,
FILE_WRITE_ATTRIBUTES);
+
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
/* resource #4: response buffer */
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
@@ -2938,6 +2973,11 @@ int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,
cifs_small_buf_release(req);
err_free_path:
kfree(utf16_path);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -3079,6 +3119,7 @@ SMB2_open_init(struct cifs_tcon *tcon, struct TCP_Server_Info *server,
}
add_query_id_context(iov, &n_iov);
+ add_ea_context(oparms, iov, &n_iov);
if (n_iov > 2) {
/*
@@ -3133,12 +3174,19 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
struct smb2_create_rsp *rsp = NULL;
struct cifs_tcon *tcon = oparms->tcon;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
struct kvec iov[SMB2_CREATE_IOV_SIZE];
struct kvec rsp_iov = {NULL, 0};
int resp_buftype = CIFS_NO_BUFFER;
int rc = 0;
int flags = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
+ oparms->replay = !!(retries);
cifs_dbg(FYI, "create/open\n");
if (!ses || !server)
@@ -3160,6 +3208,9 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
trace_smb3_open_enter(xid, tcon->tid, tcon->ses->Suid, oparms->path,
oparms->create_options, oparms->desired_access);
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags,
&rsp_iov);
@@ -3213,6 +3264,11 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
creat_exit:
SMB2_open_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -3337,15 +3393,7 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
int resp_buftype = CIFS_NO_BUFFER;
int rc = 0;
int flags = 0;
-
- cifs_dbg(FYI, "SMB2 IOCTL\n");
-
- if (out_data != NULL)
- *out_data = NULL;
-
- /* zero out returned data len, in case of error */
- if (plen)
- *plen = 0;
+ int retries = 0, cur_sleep = 1;
if (!tcon)
return -EIO;
@@ -3354,10 +3402,23 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
if (!ses)
return -EIO;
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
server = cifs_pick_channel(ses);
+
if (!server)
return -EIO;
+ cifs_dbg(FYI, "SMB2 IOCTL\n");
+
+ if (out_data != NULL)
+ *out_data = NULL;
+
+ /* zero out returned data len, in case of error */
+ if (plen)
+ *plen = 0;
+
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
@@ -3372,6 +3433,9 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
if (rc)
goto ioctl_exit;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags,
&rsp_iov);
@@ -3441,6 +3505,11 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
ioctl_exit:
SMB2_ioctl_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -3512,13 +3581,20 @@ __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
struct smb_rqst rqst;
struct smb2_close_rsp *rsp = NULL;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
struct kvec iov[1];
struct kvec rsp_iov;
int resp_buftype = CIFS_NO_BUFFER;
int rc = 0;
int flags = 0;
bool query_attrs = false;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ query_attrs = false;
+ server = cifs_pick_channel(ses);
cifs_dbg(FYI, "Close\n");
@@ -3544,6 +3620,9 @@ __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
if (rc)
goto close_exit;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
rsp = (struct smb2_close_rsp *)rsp_iov.iov_base;
@@ -3577,6 +3656,11 @@ __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
cifs_dbg(VFS, "handle cancelled close fid 0x%llx returned error %d\n",
persistent_fid, tmp_rc);
}
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -3707,12 +3791,19 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon,
struct TCP_Server_Info *server;
int flags = 0;
bool allocated = false;
+ int retries = 0, cur_sleep = 1;
cifs_dbg(FYI, "Query Info\n");
if (!ses)
return -EIO;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ allocated = false;
server = cifs_pick_channel(ses);
+
if (!server)
return -EIO;
@@ -3734,6 +3825,9 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon,
trace_smb3_query_info_enter(xid, persistent_fid, tcon->tid,
ses->Suid, info_class, (__u32)info_type);
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base;
@@ -3776,6 +3870,11 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon,
qinf_exit:
SMB2_query_info_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -3876,7 +3975,7 @@ SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
u32 *plen /* returned data len */)
{
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
struct smb_rqst rqst;
struct smb2_change_notify_rsp *smb_rsp;
struct kvec iov[1];
@@ -3884,6 +3983,12 @@ SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
int resp_buftype = CIFS_NO_BUFFER;
int flags = 0;
int rc = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
cifs_dbg(FYI, "change notify\n");
if (!ses || !server)
@@ -3908,6 +4013,10 @@ SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
trace_smb3_notify_enter(xid, persistent_fid, tcon->tid, ses->Suid,
(u8)watch_tree, completion_filter);
+
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
@@ -3942,6 +4051,11 @@ SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
if (rqst.rq_iov)
cifs_small_buf_release(rqst.rq_iov[0].iov_base); /* request */
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -3979,7 +4093,7 @@ void smb2_reconnect_server(struct work_struct *work)
struct cifs_ses *ses, *ses2;
struct cifs_tcon *tcon, *tcon2;
struct list_head tmp_list, tmp_ses_list;
- bool tcon_exist = false, ses_exist = false;
+ bool ses_exist = false;
bool tcon_selected = false;
int rc;
bool resched = false;
@@ -4024,8 +4138,10 @@ void smb2_reconnect_server(struct work_struct *work)
list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
if (tcon->need_reconnect || tcon->need_reopen_files) {
tcon->tc_count++;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_get_reconnect_server);
list_add_tail(&tcon->rlist, &tmp_list);
- tcon_selected = tcon_exist = true;
+ tcon_selected = true;
}
}
/*
@@ -4034,7 +4150,7 @@ void smb2_reconnect_server(struct work_struct *work)
*/
if (ses->tcon_ipc && ses->tcon_ipc->need_reconnect) {
list_add_tail(&ses->tcon_ipc->rlist, &tmp_list);
- tcon_selected = tcon_exist = true;
+ tcon_selected = true;
cifs_smb_ses_inc_refcount(ses);
}
/*
@@ -4062,14 +4178,14 @@ void smb2_reconnect_server(struct work_struct *work)
if (tcon->ipc)
cifs_put_smb_ses(tcon->ses);
else
- cifs_put_tcon(tcon);
+ cifs_put_tcon(tcon, netfs_trace_tcon_ref_put_reconnect_server);
}
if (!ses_exist)
goto done;
/* allocate a dummy tcon struct used for reconnect */
- tcon = tcon_info_alloc(false);
+ tcon = tcon_info_alloc(false, netfs_trace_tcon_ref_new_reconnect_server);
if (!tcon) {
resched = true;
list_for_each_entry_safe(ses, ses2, &tmp_ses_list, rlist) {
@@ -4092,7 +4208,7 @@ void smb2_reconnect_server(struct work_struct *work)
list_del_init(&ses->rlist);
cifs_put_smb_ses(ses);
}
- tconInfoFree(tcon);
+ tconInfoFree(tcon, netfs_trace_tcon_ref_free_reconnect_server);
done:
cifs_dbg(FYI, "Reconnecting tcons and channels finished\n");
@@ -4184,10 +4300,16 @@ SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
struct smb_rqst rqst;
struct kvec iov[1];
struct kvec rsp_iov = {NULL, 0};
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
int resp_buftype = CIFS_NO_BUFFER;
int flags = 0;
int rc = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
cifs_dbg(FYI, "flush\n");
if (!ses || !(ses->server))
@@ -4207,6 +4329,10 @@ SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
goto flush_exit;
trace_smb3_flush_enter(xid, persistent_fid, tcon->tid, ses->Suid);
+
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
@@ -4221,6 +4347,11 @@ SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
flush_exit:
SMB2_flush_free(&rqst);
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -4700,7 +4831,7 @@ smb2_async_writev(struct cifs_writedata *wdata,
struct cifs_io_parms *io_parms = NULL;
int credit_request;
- if (!wdata->server)
+ if (!wdata->server || wdata->replay)
server = wdata->server = cifs_pick_channel(tcon->ses);
/*
@@ -4785,6 +4916,8 @@ smb2_async_writev(struct cifs_writedata *wdata,
rqst.rq_nvec = 1;
rqst.rq_iter = wdata->iter;
rqst.rq_iter_size = iov_iter_count(&rqst.rq_iter);
+ if (wdata->replay)
+ smb2_set_replay(server, &rqst);
#ifdef CONFIG_CIFS_SMB_DIRECT
if (wdata->mr)
iov[0].iov_len += sizeof(struct smbd_buffer_descriptor_v1);
@@ -4858,18 +4991,21 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
int flags = 0;
unsigned int total_len;
struct TCP_Server_Info *server;
+ int retries = 0, cur_sleep = 1;
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
*nbytes = 0;
-
- if (n_vec < 1)
- return rc;
-
if (!io_parms->server)
io_parms->server = cifs_pick_channel(io_parms->tcon->ses);
server = io_parms->server;
if (server == NULL)
return -ECONNABORTED;
+ if (n_vec < 1)
+ return rc;
+
rc = smb2_plain_req_init(SMB2_WRITE, io_parms->tcon, server,
(void **) &req, &total_len);
if (rc)
@@ -4903,6 +5039,9 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
rqst.rq_iov = iov;
rqst.rq_nvec = n_vec + 1;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, io_parms->tcon->ses, server,
&rqst,
&resp_buftype, flags, &rsp_iov);
@@ -4927,6 +5066,11 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
cifs_small_buf_release(req);
free_rsp_buf(resp_buftype, rsp);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(io_parms->tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -5244,8 +5388,14 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
struct kvec rsp_iov;
int rc = 0;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
int flags = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
if (!ses || !(ses->server))
return -EIO;
@@ -5265,6 +5415,9 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
if (rc)
goto qdir_exit;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
rsp = (struct smb2_query_directory_rsp *)rsp_iov.iov_base;
@@ -5299,6 +5452,11 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
qdir_exit:
SMB2_query_directory_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -5365,8 +5523,14 @@ send_set_info(const unsigned int xid, struct cifs_tcon *tcon,
int rc = 0;
int resp_buftype;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
int flags = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
if (!ses || !server)
return -EIO;
@@ -5394,6 +5558,8 @@ send_set_info(const unsigned int xid, struct cifs_tcon *tcon,
return rc;
}
+ if (retries)
+ smb2_set_replay(server, &rqst);
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags,
@@ -5409,23 +5575,28 @@ send_set_info(const unsigned int xid, struct cifs_tcon *tcon,
free_rsp_buf(resp_buftype, rsp);
kfree(iov);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
int
SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
- u64 volatile_fid, u32 pid, __le64 *eof)
+ u64 volatile_fid, u32 pid, loff_t new_eof)
{
struct smb2_file_eof_info info;
void *data;
unsigned int size;
- info.EndOfFile = *eof;
+ info.EndOfFile = cpu_to_le64(new_eof);
data = &info;
size = sizeof(struct smb2_file_eof_info);
- trace_smb3_set_eof(xid, persistent_fid, tcon->tid, tcon->ses->Suid, le64_to_cpu(*eof));
+ trace_smb3_set_eof(xid, persistent_fid, tcon->tid, tcon->ses->Suid, new_eof);
return send_set_info(xid, tcon, persistent_fid, volatile_fid,
pid, FILE_END_OF_FILE_INFORMATION, SMB2_O_INFO_FILE,
@@ -5461,12 +5632,18 @@ SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
int rc;
struct smb2_oplock_break *req = NULL;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
int flags = CIFS_OBREAK_OP;
unsigned int total_len;
struct kvec iov[1];
struct kvec rsp_iov;
int resp_buf_type;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = CIFS_OBREAK_OP;
+ server = cifs_pick_channel(ses);
cifs_dbg(FYI, "SMB2_oplock_break\n");
rc = smb2_plain_req_init(SMB2_OPLOCK_BREAK, tcon, server,
@@ -5491,15 +5668,21 @@ SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
rqst.rq_iov = iov;
rqst.rq_nvec = 1;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buf_type, flags, &rsp_iov);
cifs_small_buf_release(req);
-
if (rc) {
cifs_stats_fail_inc(tcon, SMB2_OPLOCK_BREAK_HE);
cifs_dbg(FYI, "Send error in Oplock Break = %d\n", rc);
}
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -5585,9 +5768,15 @@ SMB311_posix_qfs_info(const unsigned int xid, struct cifs_tcon *tcon,
int rc = 0;
int resp_buftype;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
FILE_SYSTEM_POSIX_INFO *info = NULL;
int flags = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
rc = build_qfs_info_req(&iov, tcon, server,
FS_POSIX_INFORMATION,
@@ -5603,6 +5792,9 @@ SMB311_posix_qfs_info(const unsigned int xid, struct cifs_tcon *tcon,
rqst.rq_iov = &iov;
rqst.rq_nvec = 1;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
free_qfs_info_req(&iov);
@@ -5622,6 +5814,11 @@ SMB311_posix_qfs_info(const unsigned int xid, struct cifs_tcon *tcon,
posix_qfsinf_exit:
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -5636,9 +5833,15 @@ SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
int rc = 0;
int resp_buftype;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
struct smb2_fs_full_size_info *info = NULL;
int flags = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
rc = build_qfs_info_req(&iov, tcon, server,
FS_FULL_SIZE_INFORMATION,
@@ -5654,6 +5857,9 @@ SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
rqst.rq_iov = &iov;
rqst.rq_nvec = 1;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
free_qfs_info_req(&iov);
@@ -5673,6 +5879,11 @@ SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
qfsinf_exit:
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -5687,9 +5898,15 @@ SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
int rc = 0;
int resp_buftype, max_len, min_len;
struct cifs_ses *ses = tcon->ses;
- struct TCP_Server_Info *server = cifs_pick_channel(ses);
+ struct TCP_Server_Info *server;
unsigned int rsp_len, offset;
int flags = 0;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ server = cifs_pick_channel(ses);
if (level == FS_DEVICE_INFORMATION) {
max_len = sizeof(FILE_SYSTEM_DEVICE_INFO);
@@ -5721,6 +5938,9 @@ SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
rqst.rq_iov = &iov;
rqst.rq_nvec = 1;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, ses, server,
&rqst, &resp_buftype, flags, &rsp_iov);
free_qfs_info_req(&iov);
@@ -5758,6 +5978,11 @@ SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
qfsattr_exit:
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
@@ -5775,7 +6000,13 @@ smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon,
unsigned int count;
int flags = CIFS_NO_RSP_BUF;
unsigned int total_len;
- struct TCP_Server_Info *server = cifs_pick_channel(tcon->ses);
+ struct TCP_Server_Info *server;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = CIFS_NO_RSP_BUF;
+ server = cifs_pick_channel(tcon->ses);
cifs_dbg(FYI, "smb2_lockv num lock %d\n", num_lock);
@@ -5806,6 +6037,9 @@ smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon,
rqst.rq_iov = iov;
rqst.rq_nvec = 2;
+ if (retries)
+ smb2_set_replay(server, &rqst);
+
rc = cifs_send_recv(xid, tcon->ses, server,
&rqst, &resp_buf_type, flags,
&rsp_iov);
@@ -5817,6 +6051,10 @@ smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon,
tcon->ses->Suid, rc);
}
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
return rc;
}
diff --git a/fs/smb/client/smb2pdu.h b/fs/smb/client/smb2pdu.h
index b00f707bddfc..5c458ab3b05a 100644
--- a/fs/smb/client/smb2pdu.h
+++ b/fs/smb/client/smb2pdu.h
@@ -117,9 +117,10 @@ struct share_redirect_error_context_rsp {
* [4] : posix context
* [5] : time warp context
* [6] : query id context
- * [7] : compound padding
+ * [7] : create ea context
+ * [8] : compound padding
*/
-#define SMB2_CREATE_IOV_SIZE 8
+#define SMB2_CREATE_IOV_SIZE 9
/*
* Maximum size of a SMB2_CREATE response is 64 (smb2 header) +
@@ -144,7 +145,7 @@ struct durable_context_v2 {
} __packed;
struct create_durable_v2 {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct durable_context_v2 dcontext;
} __packed;
@@ -166,7 +167,7 @@ struct durable_reconnect_context_v2_rsp {
} __packed;
struct create_durable_handle_reconnect_v2 {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct durable_reconnect_context_v2 dcontext;
__u8 Pad[4];
@@ -174,7 +175,7 @@ struct create_durable_handle_reconnect_v2 {
/* See MS-SMB2 2.2.13.2.5 */
struct crt_twarp_ctxt {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le64 Timestamp;
@@ -182,12 +183,12 @@ struct crt_twarp_ctxt {
/* See MS-SMB2 2.2.13.2.9 */
struct crt_query_id_ctxt {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
} __packed;
struct crt_sd_ctxt {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct smb3_sd sd;
} __packed;
@@ -413,4 +414,35 @@ struct smb2_posix_info_parsed {
const u8 *name;
};
+struct smb2_create_ea_ctx {
+ struct create_context_hdr ctx;
+ __u8 name[8];
+ struct smb2_file_full_ea_info ea;
+} __packed;
+
+#define SMB2_WSL_XATTR_UID "$LXUID"
+#define SMB2_WSL_XATTR_GID "$LXGID"
+#define SMB2_WSL_XATTR_MODE "$LXMOD"
+#define SMB2_WSL_XATTR_DEV "$LXDEV"
+#define SMB2_WSL_XATTR_NAME_LEN 6
+#define SMB2_WSL_NUM_XATTRS 4
+
+#define SMB2_WSL_XATTR_UID_SIZE 4
+#define SMB2_WSL_XATTR_GID_SIZE 4
+#define SMB2_WSL_XATTR_MODE_SIZE 4
+#define SMB2_WSL_XATTR_DEV_SIZE 8
+
+#define SMB2_WSL_MIN_QUERY_EA_RESP_SIZE \
+ (ALIGN((SMB2_WSL_NUM_XATTRS - 1) * \
+ (SMB2_WSL_XATTR_NAME_LEN + 1 + \
+ sizeof(struct smb2_file_full_ea_info)), 4) + \
+ SMB2_WSL_XATTR_NAME_LEN + 1 + sizeof(struct smb2_file_full_ea_info))
+
+#define SMB2_WSL_MAX_QUERY_EA_RESP_SIZE \
+ (ALIGN(SMB2_WSL_MIN_QUERY_EA_RESP_SIZE + \
+ SMB2_WSL_XATTR_UID_SIZE + \
+ SMB2_WSL_XATTR_GID_SIZE + \
+ SMB2_WSL_XATTR_MODE_SIZE + \
+ SMB2_WSL_XATTR_DEV_SIZE, 4))
+
#endif /* _SMB2PDU_H */
diff --git a/fs/smb/client/smb2proto.h b/fs/smb/client/smb2proto.h
index a8084ce7fcbd..732169d8a67a 100644
--- a/fs/smb/client/smb2proto.h
+++ b/fs/smb/client/smb2proto.h
@@ -56,6 +56,19 @@ extern int smb3_handle_read_data(struct TCP_Server_Info *server,
extern int smb2_query_reparse_tag(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *path,
__u32 *reparse_tag);
+struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid,
+ struct cifs_tcon *tcon,
+ const char *full_path,
+ struct kvec *reparse_iov,
+ struct kvec *xattr_iov);
+int smb2_query_reparse_point(const unsigned int xid,
+ struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb,
+ const char *full_path,
+ u32 *tag, struct kvec *rsp,
+ int *rsp_buftype);
int smb2_query_path_info(const unsigned int xid,
struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb,
@@ -63,7 +76,8 @@ int smb2_query_path_info(const unsigned int xid,
struct cifs_open_info_data *data);
extern int smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
const char *full_path, __u64 size,
- struct cifs_sb_info *cifs_sb, bool set_alloc);
+ struct cifs_sb_info *cifs_sb, bool set_alloc,
+ struct dentry *dentry);
extern int smb2_set_file_info(struct inode *inode, const char *full_path,
FILE_BASIC_INFO *buf, const unsigned int xid);
extern int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,
@@ -79,7 +93,8 @@ extern void smb2_mkdir_setinfo(struct inode *inode, const char *full_path,
extern int smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
const char *name, struct cifs_sb_info *cifs_sb);
extern int smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon,
- const char *name, struct cifs_sb_info *cifs_sb);
+ const char *name, struct cifs_sb_info *cifs_sb,
+ struct dentry *dentry);
int smb2_rename_path(const unsigned int xid,
struct cifs_tcon *tcon,
struct dentry *source_dentry,
@@ -110,6 +125,11 @@ extern unsigned long smb_rqst_len(struct TCP_Server_Info *server,
extern void smb2_set_next_command(struct cifs_tcon *tcon,
struct smb_rqst *rqst);
extern void smb2_set_related(struct smb_rqst *rqst);
+extern void smb2_set_replay(struct TCP_Server_Info *server,
+ struct smb_rqst *rqst);
+extern bool smb2_should_replay(struct cifs_tcon *tcon,
+ int *pretries,
+ int *pcur_sleep);
/*
* SMB2 Worker functions - most of protocol specific implementation details
@@ -209,7 +229,7 @@ extern int SMB2_query_directory_init(unsigned int xid, struct cifs_tcon *tcon,
extern void SMB2_query_directory_free(struct smb_rqst *rqst);
extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid, u32 pid,
- __le64 *eof);
+ loff_t new_eof);
extern int SMB2_set_info_init(struct cifs_tcon *tcon,
struct TCP_Server_Info *server,
struct smb_rqst *rqst,
@@ -287,10 +307,15 @@ int smb311_posix_query_path_info(const unsigned int xid,
struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb,
const char *full_path,
- struct cifs_open_info_data *data,
- struct cifs_sid *owner,
- struct cifs_sid *group);
+ struct cifs_open_info_data *data);
int posix_info_parse(const void *beg, const void *end,
struct smb2_posix_info_parsed *out);
int posix_info_sid_size(const void *beg, const void *end);
+int smb2_create_reparse_symlink(const unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, const char *symname);
+int smb2_make_nfs_node(unsigned int xid, struct inode *inode,
+ struct dentry *dentry, struct cifs_tcon *tcon,
+ const char *full_path, umode_t mode, dev_t dev);
+
#endif /* _SMB2PROTO_H */
diff --git a/fs/smb/client/smb2status.h b/fs/smb/client/smb2status.h
index a9e958166fc5..9c6d79b0bd49 100644
--- a/fs/smb/client/smb2status.h
+++ b/fs/smb/client/smb2status.h
@@ -982,6 +982,8 @@ struct ntstatus {
#define STATUS_INVALID_TASK_INDEX cpu_to_le32(0xC0000501)
#define STATUS_THREAD_ALREADY_IN_TASK cpu_to_le32(0xC0000502)
#define STATUS_CALLBACK_BYPASS cpu_to_le32(0xC0000503)
+#define STATUS_SERVER_UNAVAILABLE cpu_to_le32(0xC0000466)
+#define STATUS_FILE_NOT_AVAILABLE cpu_to_le32(0xC0000467)
#define STATUS_PORT_CLOSED cpu_to_le32(0xC0000700)
#define STATUS_MESSAGE_LOST cpu_to_le32(0xC0000701)
#define STATUS_INVALID_MESSAGE cpu_to_le32(0xC0000702)
diff --git a/fs/smb/client/smb2transport.c b/fs/smb/client/smb2transport.c
index 5a3ca62d2f07..8f346aafc4cf 100644
--- a/fs/smb/client/smb2transport.c
+++ b/fs/smb/client/smb2transport.c
@@ -189,6 +189,8 @@ smb2_find_smb_sess_tcon_unlocked(struct cifs_ses *ses, __u32 tid)
if (tcon->tid != tid)
continue;
++tcon->tc_count;
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_get_find_sess_tcon);
return tcon;
}
diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index 94df9eec3d8d..d74e829de51c 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -2136,7 +2136,7 @@ static int allocate_mr_list(struct smbd_connection *info)
for (i = 0; i < info->responder_resources * 2; i++) {
smbdirect_mr = kzalloc(sizeof(*smbdirect_mr), GFP_KERNEL);
if (!smbdirect_mr)
- goto out;
+ goto cleanup_entries;
smbdirect_mr->mr = ib_alloc_mr(info->pd, info->mr_type,
info->max_frmr_depth);
if (IS_ERR(smbdirect_mr->mr)) {
@@ -2162,7 +2162,7 @@ static int allocate_mr_list(struct smbd_connection *info)
out:
kfree(smbdirect_mr);
-
+cleanup_entries:
list_for_each_entry_safe(smbdirect_mr, tmp, &info->mr_list, list) {
list_del(&smbdirect_mr->list);
ib_dereg_mr(smbdirect_mr->mr);
diff --git a/fs/smb/client/smbencrypt.c b/fs/smb/client/smbencrypt.c
index f0ce26414f17..1d1ee9f18f37 100644
--- a/fs/smb/client/smbencrypt.c
+++ b/fs/smb/client/smbencrypt.c
@@ -26,13 +26,6 @@
#include "cifsproto.h"
#include "../common/md4.h"
-#ifndef false
-#define false 0
-#endif
-#ifndef true
-#define true 1
-#endif
-
/* following came from the other byteorder.h to avoid include conflicts */
#define CVAL(buf,pos) (((unsigned char *)(buf))[pos])
#define SSVALX(buf,pos,val) (CVAL(buf,pos)=(val)&0xFF,CVAL(buf,pos+1)=(val)>>8)
diff --git a/fs/smb/client/trace.h b/fs/smb/client/trace.h
index de199ec9f726..604e52876cd2 100644
--- a/fs/smb/client/trace.h
+++ b/fs/smb/client/trace.h
@@ -3,6 +3,9 @@
* Copyright (C) 2018, Microsoft Corporation.
*
* Author(s): Steve French <stfrench@xxxxxxxxxxxxx>
+ *
+ * Please use this 3-part article as a reference for writing new tracepoints:
+ * https://lwn.net/Articles/379903/
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM cifs
@@ -15,9 +18,70 @@
#include <linux/inet.h>
/*
- * Please use this 3-part article as a reference for writing new tracepoints:
- * https://lwn.net/Articles/379903/
+ * Specify enums for tracing information.
+ */
+#define smb3_tcon_ref_traces \
+ EM(netfs_trace_tcon_ref_dec_dfs_refer, "DEC DfsRef") \
+ EM(netfs_trace_tcon_ref_free, "FRE ") \
+ EM(netfs_trace_tcon_ref_free_fail, "FRE Fail ") \
+ EM(netfs_trace_tcon_ref_free_ipc, "FRE Ipc ") \
+ EM(netfs_trace_tcon_ref_free_ipc_fail, "FRE Ipc-F ") \
+ EM(netfs_trace_tcon_ref_free_reconnect_server, "FRE Reconn") \
+ EM(netfs_trace_tcon_ref_get_cancelled_close, "GET Cn-Cls") \
+ EM(netfs_trace_tcon_ref_get_dfs_refer, "GET DfsRef") \
+ EM(netfs_trace_tcon_ref_get_find, "GET Find ") \
+ EM(netfs_trace_tcon_ref_get_find_sess_tcon, "GET FndSes") \
+ EM(netfs_trace_tcon_ref_get_reconnect_server, "GET Reconn") \
+ EM(netfs_trace_tcon_ref_new, "NEW ") \
+ EM(netfs_trace_tcon_ref_new_ipc, "NEW Ipc ") \
+ EM(netfs_trace_tcon_ref_new_reconnect_server, "NEW Reconn") \
+ EM(netfs_trace_tcon_ref_put_cancelled_close, "PUT Cn-Cls") \
+ EM(netfs_trace_tcon_ref_put_cancelled_close_fid, "PUT Cn-Fid") \
+ EM(netfs_trace_tcon_ref_put_cancelled_mid, "PUT Cn-Mid") \
+ EM(netfs_trace_tcon_ref_put_mnt_ctx, "PUT MntCtx") \
+ EM(netfs_trace_tcon_ref_put_reconnect_server, "PUT Reconn") \
+ EM(netfs_trace_tcon_ref_put_tlink, "PUT Tlink ") \
+ EM(netfs_trace_tcon_ref_see_cancelled_close, "SEE Cn-Cls") \
+ EM(netfs_trace_tcon_ref_see_fscache_collision, "SEE FV-CO!") \
+ EM(netfs_trace_tcon_ref_see_fscache_okay, "SEE FV-Ok ") \
+ EM(netfs_trace_tcon_ref_see_fscache_relinq, "SEE FV-Rlq") \
+ E_(netfs_trace_tcon_ref_see_umount, "SEE Umount")
+
+#undef EM
+#undef E_
+
+/*
+ * Define those tracing enums.
+ */
+#ifndef __SMB3_DECLARE_TRACE_ENUMS_ONCE_ONLY
+#define __SMB3_DECLARE_TRACE_ENUMS_ONCE_ONLY
+
+#define EM(a, b) a,
+#define E_(a, b) a
+
+enum smb3_tcon_ref_trace { smb3_tcon_ref_traces } __mode(byte);
+
+#undef EM
+#undef E_
+#endif
+
+/*
+ * Export enum symbols via userspace.
+ */
+#define EM(a, b) TRACE_DEFINE_ENUM(a);
+#define E_(a, b) TRACE_DEFINE_ENUM(a);
+
+smb3_tcon_ref_traces;
+
+#undef EM
+#undef E_
+
+/*
+ * Now redefine the EM() and E_() macros to map the enums to the strings that
+ * will be printed in the output.
*/
+#define EM(a, b) { a, b },
+#define E_(a, b) { a, b }
/* For logging errors in read or write */
DECLARE_EVENT_CLASS(smb3_rw_err_class,
@@ -370,10 +434,12 @@ DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(rename_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(rmdir_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(set_eof_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(set_info_compound_enter);
+DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(set_reparse_compound_enter);
+DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(get_reparse_compound_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(delete_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(mkdir_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(tdis_enter);
-
+DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(mknod_enter);
DECLARE_EVENT_CLASS(smb3_inf_compound_done_class,
TP_PROTO(unsigned int xid,
@@ -408,10 +474,13 @@ DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(rename_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(rmdir_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(set_eof_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(set_info_compound_done);
+DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(set_reparse_compound_done);
+DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(get_reparse_compound_done);
+DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(query_wsl_ea_compound_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(delete_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(mkdir_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(tdis_done);
-
+DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(mknod_done);
DECLARE_EVENT_CLASS(smb3_inf_compound_err_class,
TP_PROTO(unsigned int xid,
@@ -451,9 +520,13 @@ DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(rename_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(rmdir_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(set_eof_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(set_info_compound_err);
+DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(set_reparse_compound_err);
+DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(get_reparse_compound_err);
+DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(query_wsl_ea_compound_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(mkdir_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(delete_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(tdis_err);
+DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(mknod_err);
/*
* For logging SMB3 Status code and Command for responses which return errors
@@ -1025,6 +1098,38 @@ DEFINE_EVENT(smb3_ses_class, smb3_##name, \
DEFINE_SMB3_SES_EVENT(ses_not_found);
+DECLARE_EVENT_CLASS(smb3_ioctl_class,
+ TP_PROTO(unsigned int xid,
+ __u64 fid,
+ unsigned int command),
+ TP_ARGS(xid, fid, command),
+ TP_STRUCT__entry(
+ __field(unsigned int, xid)
+ __field(__u64, fid)
+ __field(unsigned int, command)
+ ),
+ TP_fast_assign(
+ __entry->xid = xid;
+ __entry->fid = fid;
+ __entry->command = command;
+ ),
+ TP_printk("xid=%u fid=0x%llx ioctl cmd=0x%x",
+ __entry->xid, __entry->fid, __entry->command)
+)
+
+#define DEFINE_SMB3_IOCTL_EVENT(name) \
+DEFINE_EVENT(smb3_ioctl_class, smb3_##name, \
+ TP_PROTO(unsigned int xid, \
+ __u64 fid, \
+ unsigned int command), \
+ TP_ARGS(xid, fid, command))
+
+DEFINE_SMB3_IOCTL_EVENT(ioctl);
+
+
+
+
+
DECLARE_EVENT_CLASS(smb3_credit_class,
TP_PROTO(__u64 currmid,
__u64 conn_id,
@@ -1084,6 +1189,30 @@ DEFINE_SMB3_CREDIT_EVENT(waitff_credits);
DEFINE_SMB3_CREDIT_EVENT(overflow_credits);
DEFINE_SMB3_CREDIT_EVENT(set_credits);
+
+TRACE_EVENT(smb3_tcon_ref,
+ TP_PROTO(unsigned int tcon_debug_id, int ref,
+ enum smb3_tcon_ref_trace trace),
+ TP_ARGS(tcon_debug_id, ref, trace),
+ TP_STRUCT__entry(
+ __field(unsigned int, tcon)
+ __field(int, ref)
+ __field(enum smb3_tcon_ref_trace, trace)
+ ),
+ TP_fast_assign(
+ __entry->tcon = tcon_debug_id;
+ __entry->ref = ref;
+ __entry->trace = trace;
+ ),
+ TP_printk("TC=%08x %s r=%u",
+ __entry->tcon,
+ __print_symbolic(__entry->trace, smb3_tcon_ref_traces),
+ __entry->ref)
+ );
+
+
+#undef EM
+#undef E_
#endif /* _CIFS_TRACE_H */
#undef TRACE_INCLUDE_PATH
diff --git a/fs/smb/common/smb2pdu.h b/fs/smb/common/smb2pdu.h
index 22c94dea5211..8d10be1fe18a 100644
--- a/fs/smb/common/smb2pdu.h
+++ b/fs/smb/common/smb2pdu.h
@@ -34,6 +34,7 @@
#define SMB2_QUERY_INFO_HE 0x0010
#define SMB2_SET_INFO_HE 0x0011
#define SMB2_OPLOCK_BREAK_HE 0x0012
+#define SMB2_SERVER_TO_CLIENT_NOTIFICATION 0x0013
/* The same list in little endian */
#define SMB2_NEGOTIATE cpu_to_le16(SMB2_NEGOTIATE_HE)
@@ -207,38 +208,45 @@ struct smb2_transform_hdr {
__le64 SessionId;
} __packed;
+/*
+ * These are simplified versions from the spec, as we don't need a fully fledged
+ * form of both unchained and chained structs.
+ *
+ * Moreover, even in chained compressed payloads, the initial compression header
+ * has the form of the unchained one -- i.e. it never has the
+ * OriginalPayloadSize field and ::Offset field always represent an offset
+ * (instead of a length, as it is in the chained header).
+ *
+ * See MS-SMB2 2.2.42 for more details.
+ */
+#define SMB2_COMPRESSION_FLAG_NONE 0x0000
+#define SMB2_COMPRESSION_FLAG_CHAINED 0x0001
-/* See MS-SMB2 2.2.42 */
-struct smb2_compression_transform_hdr_unchained {
- __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */
+struct smb2_compression_hdr {
+ __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */
__le32 OriginalCompressedSegmentSize;
__le16 CompressionAlgorithm;
__le16 Flags;
- __le16 Length; /* if chained it is length, else offset */
+ __le32 Offset; /* this is the size of the uncompressed SMB2 header below */
+ /* uncompressed SMB2 header (READ or WRITE) goes here */
+ /* compressed data goes here */
} __packed;
-/* See MS-SMB2 2.2.42.1 */
-#define SMB2_COMPRESSION_FLAG_NONE 0x0000
-#define SMB2_COMPRESSION_FLAG_CHAINED 0x0001
-
-struct compression_payload_header {
+/*
+ * ... OTOH, set compression payload header to always have OriginalPayloadSize
+ * as it's easier to pass the struct size minus sizeof(OriginalPayloadSize)
+ * than to juggle around the header/data memory.
+ */
+struct smb2_compression_payload_hdr {
__le16 CompressionAlgorithm;
__le16 Flags;
__le32 Length; /* length of compressed playload including field below if present */
- /* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */
-} __packed;
-
-/* See MS-SMB2 2.2.42.2 */
-struct smb2_compression_transform_hdr_chained {
- __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */
- __le32 OriginalCompressedSegmentSize;
- /* struct compression_payload_header[] */
+ __le32 OriginalPayloadSize; /* accounted when LZNT1, LZ77, LZ77+Huffman */
} __packed;
-/* See MS-SMB2 2.2.42.2.2 */
-struct compression_pattern_payload_v1 {
- __le16 Pattern;
- __le16 Reserved1;
+struct smb2_compression_pattern_v1 {
+ __u8 Pattern;
+ __u8 Reserved1;
__le16 Reserved2;
__le32 Repetitions;
} __packed;
@@ -272,15 +280,16 @@ struct smb3_blob_data {
#define SE_GROUP_RESOURCE 0x20000000
#define SE_GROUP_LOGON_ID 0xC0000000
-/* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
-
struct sid_array_data {
__le16 SidAttrCount;
/* SidAttrList - array of sid_attr_data structs */
} __packed;
-struct luid_attr_data {
-
+/* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
+struct sid_attr_data {
+ __le16 BlobSize;
+ __u8 BlobData[];
+ /* __le32 Attr */
} __packed;
/*
@@ -411,6 +420,7 @@ struct smb2_tree_disconnect_rsp {
#define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_DIRECTORY_LEASING 0x00000020 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_ENCRYPTION 0x00000040 /* New to SMB3 */
+#define SMB2_GLOBAL_CAP_NOTIFICATIONS 0x00000080 /* New to SMB3.1.1 */
/* Internal types */
#define SMB2_NT_FIND 0x00100000
#define SMB2_LARGE_FILES 0x00200000
@@ -493,6 +503,7 @@ struct smb2_encryption_neg_context {
#define SMB3_COMPRESS_LZ77_HUFF cpu_to_le16(0x0003)
/* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
#define SMB3_COMPRESS_PATTERN cpu_to_le16(0x0004) /* Pattern_V1 */
+#define SMB3_COMPRESS_LZ4 cpu_to_le16(0x0005)
/* Compression Flags */
#define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE cpu_to_le32(0x00000000)
@@ -984,6 +995,19 @@ struct smb2_change_notify_rsp {
__u8 Buffer[]; /* array of file notify structs */
} __packed;
+/*
+ * SMB2_SERVER_TO_CLIENT_NOTIFICATION: See MS-SMB2 section 2.2.44
+ */
+
+#define SMB2_NOTIFY_SESSION_CLOSED 0x0000
+
+struct smb2_server_client_notification {
+ struct smb2_hdr hdr;
+ __le16 StructureSize;
+ __u16 Reserved; /* MBZ */
+ __le32 NotificationType;
+ __u8 NotificationBuffer[4]; /* MBZ */
+} __packed;
/*
* SMB2_CREATE See MS-SMB2 section 2.2.13
@@ -1100,16 +1124,23 @@ struct smb2_change_notify_rsp {
#define FILE_WRITE_THROUGH_LE cpu_to_le32(0x00000002)
#define FILE_SEQUENTIAL_ONLY_LE cpu_to_le32(0x00000004)
#define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
+/* FILE_SYNCHRONOUS_IO_ALERT_LE cpu_to_le32(0x00000010) should be zero, ignored */
+/* FILE_SYNCHRONOUS_IO_NONALERT cpu_to_le32(0x00000020) should be zero, ignored */
#define FILE_NON_DIRECTORY_FILE_LE cpu_to_le32(0x00000040)
#define FILE_COMPLETE_IF_OPLOCKED_LE cpu_to_le32(0x00000100)
#define FILE_NO_EA_KNOWLEDGE_LE cpu_to_le32(0x00000200)
+/* FILE_OPEN_REMOTE_INSTANCE cpu_to_le32(0x00000400) should be zero, ignored */
#define FILE_RANDOM_ACCESS_LE cpu_to_le32(0x00000800)
-#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000)
+#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000) /* MBZ */
#define FILE_OPEN_BY_FILE_ID_LE cpu_to_le32(0x00002000)
#define FILE_OPEN_FOR_BACKUP_INTENT_LE cpu_to_le32(0x00004000)
#define FILE_NO_COMPRESSION_LE cpu_to_le32(0x00008000)
+/* FILE_OPEN_REQUIRING_OPLOCK cpu_to_le32(0x00010000) should be zero, ignored */
+/* FILE_DISALLOW_EXCLUSIVE cpu_to_le32(0x00020000) should be zero, ignored */
+/* FILE_RESERVE_OPFILTER cpu_to_le32(0x00100000) MBZ */
#define FILE_OPEN_REPARSE_POINT_LE cpu_to_le32(0x00200000)
#define FILE_OPEN_NO_RECALL_LE cpu_to_le32(0x00400000)
+/* #define FILE_OPEN_FOR_FREE_SPACE_QUERY cpu_to_le32(0x00800000) should be zero, ignored */
#define CREATE_OPTIONS_MASK_LE cpu_to_le32(0x00FFFFFF)
#define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
@@ -1140,12 +1171,15 @@ struct smb2_change_notify_rsp {
#define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
struct create_context {
- __le32 Next;
- __le16 NameOffset;
- __le16 NameLength;
- __le16 Reserved;
- __le16 DataOffset;
- __le32 DataLength;
+ /* New members must be added within the struct_group() macro below. */
+ __struct_group(create_context_hdr, hdr, __packed,
+ __le32 Next;
+ __le16 NameOffset;
+ __le16 NameLength;
+ __le16 Reserved;
+ __le16 DataOffset;
+ __le32 DataLength;
+ );
__u8 Buffer[];
} __packed;
@@ -1191,7 +1225,7 @@ struct smb2_create_rsp {
} __packed;
struct create_posix {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[16];
__le32 Mode;
__u32 Reserved;
@@ -1199,7 +1233,7 @@ struct create_posix {
/* See MS-SMB2 2.2.13.2.3 and MS-SMB2 2.2.13.2.4 */
struct create_durable {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
union {
__u8 Reserved[16];
@@ -1212,14 +1246,14 @@ struct create_durable {
/* See MS-SMB2 2.2.13.2.5 */
struct create_mxac_req {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le64 Timestamp;
} __packed;
/* See MS-SMB2 2.2.14.2.5 */
struct create_mxac_rsp {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le32 QueryStatus;
__le32 MaximalAccess;
@@ -1255,13 +1289,13 @@ struct lease_context_v2 {
} __packed;
struct create_lease {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct lease_context lcontext;
} __packed;
struct create_lease_v2 {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct lease_context_v2 lcontext;
__u8 Pad[4];
@@ -1269,7 +1303,7 @@ struct create_lease_v2 {
/* See MS-SMB2 2.2.14.2.9 */
struct create_disk_id_rsp {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le64 DiskFileId;
__le64 VolumeId;
@@ -1278,7 +1312,7 @@ struct create_disk_id_rsp {
/* See MS-SMB2 2.2.13.2.13 */
struct create_app_inst_id {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[16];
__le32 StructureSize; /* Must be 20 */
__u16 Reserved;
@@ -1287,7 +1321,7 @@ struct create_app_inst_id {
/* See MS-SMB2 2.2.13.2.15 */
struct create_app_inst_id_vers {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[16];
__le32 StructureSize; /* Must be 24 */
__u16 Reserved;
diff --git a/fs/smb/common/smbfsctl.h b/fs/smb/common/smbfsctl.h
index edd7fc2a7921..a94d658b88e8 100644
--- a/fs/smb/common/smbfsctl.h
+++ b/fs/smb/common/smbfsctl.h
@@ -158,12 +158,6 @@
#define IO_REPARSE_TAG_LX_CHR 0x80000025
#define IO_REPARSE_TAG_LX_BLK 0x80000026
-#define IO_REPARSE_TAG_LX_SYMLINK_LE cpu_to_le32(0xA000001D)
-#define IO_REPARSE_TAG_AF_UNIX_LE cpu_to_le32(0x80000023)
-#define IO_REPARSE_TAG_LX_FIFO_LE cpu_to_le32(0x80000024)
-#define IO_REPARSE_TAG_LX_CHR_LE cpu_to_le32(0x80000025)
-#define IO_REPARSE_TAG_LX_BLK_LE cpu_to_le32(0x80000026)
-
/* fsctl flags */
/* If Flags is set to this value, the request is an FSCTL not ioctl request */
#define SMB2_0_IOCTL_IS_FSCTL 0x00000001
diff --git a/fs/smb/server/auth.c b/fs/smb/server/auth.c
index 229a6527870d..09b20039636e 100644
--- a/fs/smb/server/auth.c
+++ b/fs/smb/server/auth.c
@@ -208,10 +208,12 @@ static int calc_ntlmv2_hash(struct ksmbd_conn *conn, struct ksmbd_session *sess,
/**
* ksmbd_auth_ntlmv2() - NTLMv2 authentication handler
- * @sess: session of connection
+ * @conn: connection
+ * @sess: session of connection
* @ntlmv2: NTLMv2 challenge response
* @blen: NTLMv2 blob length
* @domain_name: domain name
+ * @cryptkey: session crypto key
*
* Return: 0 on success, error number on error
*/
@@ -294,7 +296,8 @@ int ksmbd_auth_ntlmv2(struct ksmbd_conn *conn, struct ksmbd_session *sess,
* ksmbd_decode_ntlmssp_auth_blob() - helper function to construct
* authenticate blob
* @authblob: authenticate blob source pointer
- * @usr: user details
+ * @blob_len: length of the @authblob message
+ * @conn: connection
* @sess: session of connection
*
* Return: 0 on success, error number on error
@@ -376,8 +379,8 @@ int ksmbd_decode_ntlmssp_auth_blob(struct authenticate_message *authblob,
* ksmbd_decode_ntlmssp_neg_blob() - helper function to construct
* negotiate blob
* @negblob: negotiate blob source pointer
- * @rsp: response header pointer to be updated
- * @sess: session of connection
+ * @blob_len: length of the @authblob message
+ * @conn: connection
*
*/
int ksmbd_decode_ntlmssp_neg_blob(struct negotiate_message *negblob,
@@ -403,8 +406,7 @@ int ksmbd_decode_ntlmssp_neg_blob(struct negotiate_message *negblob,
* ksmbd_build_ntlmssp_challenge_blob() - helper function to construct
* challenge blob
* @chgblob: challenge blob source pointer to initialize
- * @rsp: response header pointer to be updated
- * @sess: session of connection
+ * @conn: connection
*
*/
unsigned int
diff --git a/fs/smb/server/ksmbd_netlink.h b/fs/smb/server/ksmbd_netlink.h
index 4464a62228cf..f4e55199938d 100644
--- a/fs/smb/server/ksmbd_netlink.h
+++ b/fs/smb/server/ksmbd_netlink.h
@@ -75,6 +75,7 @@ struct ksmbd_heartbeat {
#define KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION BIT(1)
#define KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL BIT(2)
#define KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION_OFF BIT(3)
+#define KSMBD_GLOBAL_FLAG_DURABLE_HANDLE BIT(4)
/*
* IPC request for ksmbd server startup
@@ -339,23 +340,24 @@ enum KSMBD_TREE_CONN_STATUS {
/*
* Share config flags.
*/
-#define KSMBD_SHARE_FLAG_INVALID (0)
-#define KSMBD_SHARE_FLAG_AVAILABLE BIT(0)
-#define KSMBD_SHARE_FLAG_BROWSEABLE BIT(1)
-#define KSMBD_SHARE_FLAG_WRITEABLE BIT(2)
-#define KSMBD_SHARE_FLAG_READONLY BIT(3)
-#define KSMBD_SHARE_FLAG_GUEST_OK BIT(4)
-#define KSMBD_SHARE_FLAG_GUEST_ONLY BIT(5)
-#define KSMBD_SHARE_FLAG_STORE_DOS_ATTRS BIT(6)
-#define KSMBD_SHARE_FLAG_OPLOCKS BIT(7)
-#define KSMBD_SHARE_FLAG_PIPE BIT(8)
-#define KSMBD_SHARE_FLAG_HIDE_DOT_FILES BIT(9)
-#define KSMBD_SHARE_FLAG_INHERIT_OWNER BIT(10)
-#define KSMBD_SHARE_FLAG_STREAMS BIT(11)
-#define KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS BIT(12)
-#define KSMBD_SHARE_FLAG_ACL_XATTR BIT(13)
-#define KSMBD_SHARE_FLAG_UPDATE BIT(14)
-#define KSMBD_SHARE_FLAG_CROSSMNT BIT(15)
+#define KSMBD_SHARE_FLAG_INVALID (0)
+#define KSMBD_SHARE_FLAG_AVAILABLE BIT(0)
+#define KSMBD_SHARE_FLAG_BROWSEABLE BIT(1)
+#define KSMBD_SHARE_FLAG_WRITEABLE BIT(2)
+#define KSMBD_SHARE_FLAG_READONLY BIT(3)
+#define KSMBD_SHARE_FLAG_GUEST_OK BIT(4)
+#define KSMBD_SHARE_FLAG_GUEST_ONLY BIT(5)
+#define KSMBD_SHARE_FLAG_STORE_DOS_ATTRS BIT(6)
+#define KSMBD_SHARE_FLAG_OPLOCKS BIT(7)
+#define KSMBD_SHARE_FLAG_PIPE BIT(8)
+#define KSMBD_SHARE_FLAG_HIDE_DOT_FILES BIT(9)
+#define KSMBD_SHARE_FLAG_INHERIT_OWNER BIT(10)
+#define KSMBD_SHARE_FLAG_STREAMS BIT(11)
+#define KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS BIT(12)
+#define KSMBD_SHARE_FLAG_ACL_XATTR BIT(13)
+#define KSMBD_SHARE_FLAG_UPDATE BIT(14)
+#define KSMBD_SHARE_FLAG_CROSSMNT BIT(15)
+#define KSMBD_SHARE_FLAG_CONTINUOUS_AVAILABILITY BIT(16)
/*
* Tree connect request flags.
diff --git a/fs/smb/server/mgmt/user_session.c b/fs/smb/server/mgmt/user_session.c
index 15f68ee05089..aec0a7a12405 100644
--- a/fs/smb/server/mgmt/user_session.c
+++ b/fs/smb/server/mgmt/user_session.c
@@ -156,7 +156,7 @@ void ksmbd_session_destroy(struct ksmbd_session *sess)
kfree(sess);
}
-static struct ksmbd_session *__session_lookup(unsigned long long id)
+struct ksmbd_session *__session_lookup(unsigned long long id)
{
struct ksmbd_session *sess;
@@ -305,6 +305,32 @@ struct preauth_session *ksmbd_preauth_session_alloc(struct ksmbd_conn *conn,
return sess;
}
+void destroy_previous_session(struct ksmbd_conn *conn,
+ struct ksmbd_user *user, u64 id)
+{
+ struct ksmbd_session *prev_sess;
+ struct ksmbd_user *prev_user;
+
+ down_write(&sessions_table_lock);
+ down_write(&conn->session_lock);
+ prev_sess = __session_lookup(id);
+ if (!prev_sess || prev_sess->state == SMB2_SESSION_EXPIRED)
+ goto out;
+
+ prev_user = prev_sess->user;
+ if (!prev_user ||
+ strcmp(user->name, prev_user->name) ||
+ user->passkey_sz != prev_user->passkey_sz ||
+ memcmp(user->passkey, prev_user->passkey, user->passkey_sz))
+ goto out;
+
+ ksmbd_destroy_file_table(&prev_sess->file_table);
+ prev_sess->state = SMB2_SESSION_EXPIRED;
+out:
+ up_write(&conn->session_lock);
+ up_write(&sessions_table_lock);
+}
+
static bool ksmbd_preauth_session_id_match(struct preauth_session *sess,
unsigned long long id)
{
diff --git a/fs/smb/server/mgmt/user_session.h b/fs/smb/server/mgmt/user_session.h
index 63cb08fffde8..dc9fded2cd43 100644
--- a/fs/smb/server/mgmt/user_session.h
+++ b/fs/smb/server/mgmt/user_session.h
@@ -88,8 +88,11 @@ struct ksmbd_session *ksmbd_session_lookup(struct ksmbd_conn *conn,
int ksmbd_session_register(struct ksmbd_conn *conn,
struct ksmbd_session *sess);
void ksmbd_sessions_deregister(struct ksmbd_conn *conn);
+struct ksmbd_session *__session_lookup(unsigned long long id);
struct ksmbd_session *ksmbd_session_lookup_all(struct ksmbd_conn *conn,
unsigned long long id);
+void destroy_previous_session(struct ksmbd_conn *conn,
+ struct ksmbd_user *user, u64 id);
struct preauth_session *ksmbd_preauth_session_alloc(struct ksmbd_conn *conn,
u64 sess_id);
struct preauth_session *ksmbd_preauth_session_lookup(struct ksmbd_conn *conn,
diff --git a/fs/smb/server/misc.c b/fs/smb/server/misc.c
index 9e8afaa686e3..1a5faa6f6e7b 100644
--- a/fs/smb/server/misc.c
+++ b/fs/smb/server/misc.c
@@ -261,6 +261,7 @@ char *ksmbd_casefold_sharename(struct unicode_map *um, const char *name)
/**
* ksmbd_extract_sharename() - get share name from tree connect request
+ * @um: pointer to a unicode_map structure for character encoding handling
* @treename: buffer containing tree name and share name
*
* Return: share name on success, otherwise error
diff --git a/fs/smb/server/oplock.c b/fs/smb/server/oplock.c
index dc729ab980dc..b7adb6549aa0 100644
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -159,7 +159,8 @@ static struct oplock_info *opinfo_get_list(struct ksmbd_inode *ci)
opinfo = list_first_or_null_rcu(&ci->m_op_list, struct oplock_info,
op_entry);
if (opinfo) {
- if (!atomic_inc_not_zero(&opinfo->refcount))
+ if (opinfo->conn == NULL ||
+ !atomic_inc_not_zero(&opinfo->refcount))
opinfo = NULL;
else {
atomic_inc(&opinfo->conn->r_count);
@@ -527,7 +528,7 @@ static struct oplock_info *same_client_has_lease(struct ksmbd_inode *ci,
*/
read_lock(&ci->m_lock);
list_for_each_entry(opinfo, &ci->m_op_list, op_entry) {
- if (!opinfo->is_lease)
+ if (!opinfo->is_lease || !opinfo->conn)
continue;
read_unlock(&ci->m_lock);
lease = opinfo->o_lease;
@@ -651,7 +652,7 @@ static void __smb2_oplock_break_noti(struct work_struct *wk)
struct smb2_hdr *rsp_hdr;
struct ksmbd_file *fp;
- fp = ksmbd_lookup_durable_fd(br_info->fid);
+ fp = ksmbd_lookup_global_fd(br_info->fid);
if (!fp)
goto out;
@@ -1115,7 +1116,7 @@ void smb_send_parent_lease_break_noti(struct ksmbd_file *fp,
read_lock(&p_ci->m_lock);
list_for_each_entry(opinfo, &p_ci->m_op_list, op_entry) {
- if (!opinfo->is_lease)
+ if (opinfo->conn == NULL || !opinfo->is_lease)
continue;
if (opinfo->o_lease->state != SMB2_OPLOCK_LEVEL_NONE &&
@@ -1151,7 +1152,7 @@ void smb_lazy_parent_lease_break_close(struct ksmbd_file *fp)
opinfo = rcu_dereference(fp->f_opinfo);
rcu_read_unlock();
- if (!opinfo->is_lease || opinfo->o_lease->version != 2)
+ if (!opinfo || !opinfo->is_lease || opinfo->o_lease->version != 2)
return;
p_ci = ksmbd_inode_lookup_lock(fp->filp->f_path.dentry->d_parent);
@@ -1160,7 +1161,7 @@ void smb_lazy_parent_lease_break_close(struct ksmbd_file *fp)
read_lock(&p_ci->m_lock);
list_for_each_entry(opinfo, &p_ci->m_op_list, op_entry) {
- if (!opinfo->is_lease)
+ if (opinfo->conn == NULL || !opinfo->is_lease)
continue;
if (opinfo->o_lease->state != SMB2_OPLOCK_LEVEL_NONE) {
@@ -1372,6 +1373,9 @@ void smb_break_all_levII_oplock(struct ksmbd_work *work, struct ksmbd_file *fp,
rcu_read_lock();
list_for_each_entry_rcu(brk_op, &ci->m_op_list, op_entry) {
+ if (brk_op->conn == NULL)
+ continue;
+
if (!atomic_inc_not_zero(&brk_op->refcount))
continue;
@@ -1508,11 +1512,10 @@ void create_lease_buf(u8 *rbuf, struct lease *lease)
/**
* parse_lease_state() - parse lease context containted in file open request
* @open_req: buffer containing smb2 file open(create) request
- * @is_dir: whether leasing file is directory
*
* Return: oplock state, -ENOENT if create lease context not found
*/
-struct lease_ctx_info *parse_lease_state(void *open_req, bool is_dir)
+struct lease_ctx_info *parse_lease_state(void *open_req)
{
struct create_context *cc;
struct smb2_create_req *req = (struct smb2_create_req *)open_req;
@@ -1530,12 +1533,7 @@ struct lease_ctx_info *parse_lease_state(void *open_req, bool is_dir)
struct create_lease_v2 *lc = (struct create_lease_v2 *)cc;
memcpy(lreq->lease_key, lc->lcontext.LeaseKey, SMB2_LEASE_KEY_SIZE);
- if (is_dir) {
- lreq->req_state = lc->lcontext.LeaseState &
- ~SMB2_LEASE_WRITE_CACHING_LE;
- lreq->is_dir = true;
- } else
- lreq->req_state = lc->lcontext.LeaseState;
+ lreq->req_state = lc->lcontext.LeaseState;
lreq->flags = lc->lcontext.LeaseFlags;
lreq->epoch = lc->lcontext.Epoch;
lreq->duration = lc->lcontext.LeaseDuration;
@@ -1659,6 +1657,8 @@ void create_durable_v2_rsp_buf(char *cc, struct ksmbd_file *fp)
buf->Name[3] = 'Q';
buf->Timeout = cpu_to_le32(fp->durable_timeout);
+ if (fp->is_persistent)
+ buf->Flags = cpu_to_le32(SMB2_DHANDLE_FLAG_PERSISTENT);
}
/**
@@ -1826,3 +1826,71 @@ struct oplock_info *lookup_lease_in_table(struct ksmbd_conn *conn,
read_unlock(&lease_list_lock);
return ret_op;
}
+
+int smb2_check_durable_oplock(struct ksmbd_conn *conn,
+ struct ksmbd_share_config *share,
+ struct ksmbd_file *fp,
+ struct lease_ctx_info *lctx,
+ char *name)
+{
+ struct oplock_info *opinfo = opinfo_get(fp);
+ int ret = 0;
+
+ if (!opinfo)
+ return 0;
+
+ if (opinfo->is_lease == false) {
+ if (lctx) {
+ pr_err("create context include lease\n");
+ ret = -EBADF;
+ goto out;
+ }
+
+ if (opinfo->level != SMB2_OPLOCK_LEVEL_BATCH) {
+ pr_err("oplock level is not equal to SMB2_OPLOCK_LEVEL_BATCH\n");
+ ret = -EBADF;
+ }
+
+ goto out;
+ }
+
+ if (memcmp(conn->ClientGUID, fp->client_guid,
+ SMB2_CLIENT_GUID_SIZE)) {
+ ksmbd_debug(SMB, "Client guid of fp is not equal to the one of connection\n");
+ ret = -EBADF;
+ goto out;
+ }
+
+ if (!lctx) {
+ ksmbd_debug(SMB, "create context does not include lease\n");
+ ret = -EBADF;
+ goto out;
+ }
+
+ if (memcmp(opinfo->o_lease->lease_key, lctx->lease_key,
+ SMB2_LEASE_KEY_SIZE)) {
+ ksmbd_debug(SMB,
+ "lease key of fp does not match lease key in create context\n");
+ ret = -EBADF;
+ goto out;
+ }
+
+ if (!(opinfo->o_lease->state & SMB2_LEASE_HANDLE_CACHING_LE)) {
+ ksmbd_debug(SMB, "lease state does not contain SMB2_LEASE_HANDLE_CACHING\n");
+ ret = -EBADF;
+ goto out;
+ }
+
+ if (opinfo->o_lease->version != lctx->version) {
+ ksmbd_debug(SMB,
+ "lease version of fp does not match the one in create context\n");
+ ret = -EBADF;
+ goto out;
+ }
+
+ if (!ksmbd_inode_pending_delete(fp))
+ ret = ksmbd_validate_name_reconnect(share, fp, name);
+out:
+ opinfo_put(opinfo);
+ return ret;
+}
diff --git a/fs/smb/server/oplock.h b/fs/smb/server/oplock.h
index 5b93ea9196c0..e9da63f25b20 100644
--- a/fs/smb/server/oplock.h
+++ b/fs/smb/server/oplock.h
@@ -111,7 +111,7 @@ void opinfo_put(struct oplock_info *opinfo);
/* Lease related functions */
void create_lease_buf(u8 *rbuf, struct lease *lease);
-struct lease_ctx_info *parse_lease_state(void *open_req, bool is_dir);
+struct lease_ctx_info *parse_lease_state(void *open_req);
__u8 smb2_map_lease_to_oplock(__le32 lease_state);
int lease_read_to_write(struct oplock_info *opinfo);
@@ -130,4 +130,9 @@ void destroy_lease_table(struct ksmbd_conn *conn);
void smb_send_parent_lease_break_noti(struct ksmbd_file *fp,
struct lease_ctx_info *lctx);
void smb_lazy_parent_lease_break_close(struct ksmbd_file *fp);
+int smb2_check_durable_oplock(struct ksmbd_conn *conn,
+ struct ksmbd_share_config *share,
+ struct ksmbd_file *fp,
+ struct lease_ctx_info *lctx,
+ char *name);
#endif /* __KSMBD_OPLOCK_H */
diff --git a/fs/smb/server/smb2misc.c b/fs/smb/server/smb2misc.c
index 03dded29a980..727cb49926ee 100644
--- a/fs/smb/server/smb2misc.c
+++ b/fs/smb/server/smb2misc.c
@@ -101,13 +101,17 @@ static int smb2_get_data_area_len(unsigned int *off, unsigned int *len,
*len = le16_to_cpu(((struct smb2_sess_setup_req *)hdr)->SecurityBufferLength);
break;
case SMB2_TREE_CONNECT:
- *off = le16_to_cpu(((struct smb2_tree_connect_req *)hdr)->PathOffset);
+ *off = max_t(unsigned short int,
+ le16_to_cpu(((struct smb2_tree_connect_req *)hdr)->PathOffset),
+ offsetof(struct smb2_tree_connect_req, Buffer));
*len = le16_to_cpu(((struct smb2_tree_connect_req *)hdr)->PathLength);
break;
case SMB2_CREATE:
{
unsigned short int name_off =
- le16_to_cpu(((struct smb2_create_req *)hdr)->NameOffset);
+ max_t(unsigned short int,
+ le16_to_cpu(((struct smb2_create_req *)hdr)->NameOffset),
+ offsetof(struct smb2_create_req, Buffer));
unsigned short int name_len =
le16_to_cpu(((struct smb2_create_req *)hdr)->NameLength);
@@ -128,11 +132,15 @@ static int smb2_get_data_area_len(unsigned int *off, unsigned int *len,
break;
}
case SMB2_QUERY_INFO:
- *off = le16_to_cpu(((struct smb2_query_info_req *)hdr)->InputBufferOffset);
+ *off = max_t(unsigned int,
+ le16_to_cpu(((struct smb2_query_info_req *)hdr)->InputBufferOffset),
+ offsetof(struct smb2_query_info_req, Buffer));
*len = le32_to_cpu(((struct smb2_query_info_req *)hdr)->InputBufferLength);
break;
case SMB2_SET_INFO:
- *off = le16_to_cpu(((struct smb2_set_info_req *)hdr)->BufferOffset);
+ *off = max_t(unsigned int,
+ le16_to_cpu(((struct smb2_set_info_req *)hdr)->BufferOffset),
+ offsetof(struct smb2_set_info_req, Buffer));
*len = le32_to_cpu(((struct smb2_set_info_req *)hdr)->BufferLength);
break;
case SMB2_READ:
@@ -142,7 +150,7 @@ static int smb2_get_data_area_len(unsigned int *off, unsigned int *len,
case SMB2_WRITE:
if (((struct smb2_write_req *)hdr)->DataOffset ||
((struct smb2_write_req *)hdr)->Length) {
- *off = max_t(unsigned int,
+ *off = max_t(unsigned short int,
le16_to_cpu(((struct smb2_write_req *)hdr)->DataOffset),
offsetof(struct smb2_write_req, Buffer));
*len = le32_to_cpu(((struct smb2_write_req *)hdr)->Length);
@@ -153,7 +161,9 @@ static int smb2_get_data_area_len(unsigned int *off, unsigned int *len,
*len = le16_to_cpu(((struct smb2_write_req *)hdr)->WriteChannelInfoLength);
break;
case SMB2_QUERY_DIRECTORY:
- *off = le16_to_cpu(((struct smb2_query_directory_req *)hdr)->FileNameOffset);
+ *off = max_t(unsigned short int,
+ le16_to_cpu(((struct smb2_query_directory_req *)hdr)->FileNameOffset),
+ offsetof(struct smb2_query_directory_req, Buffer));
*len = le16_to_cpu(((struct smb2_query_directory_req *)hdr)->FileNameLength);
break;
case SMB2_LOCK:
@@ -168,7 +178,9 @@ static int smb2_get_data_area_len(unsigned int *off, unsigned int *len,
break;
}
case SMB2_IOCTL:
- *off = le32_to_cpu(((struct smb2_ioctl_req *)hdr)->InputOffset);
+ *off = max_t(unsigned int,
+ le32_to_cpu(((struct smb2_ioctl_req *)hdr)->InputOffset),
+ offsetof(struct smb2_ioctl_req, Buffer));
*len = le32_to_cpu(((struct smb2_ioctl_req *)hdr)->InputCount);
break;
default:
diff --git a/fs/smb/server/smb2ops.c b/fs/smb/server/smb2ops.c
index 8600f32c981a..606aa3c5189a 100644
--- a/fs/smb/server/smb2ops.c
+++ b/fs/smb/server/smb2ops.c
@@ -261,6 +261,9 @@ void init_smb3_02_server(struct ksmbd_conn *conn)
if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL)
conn->vals->capabilities |= SMB2_GLOBAL_CAP_MULTI_CHANNEL;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_PERSISTENT_HANDLES;
}
/**
@@ -283,6 +286,9 @@ int init_smb3_11_server(struct ksmbd_conn *conn)
if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL)
conn->vals->capabilities |= SMB2_GLOBAL_CAP_MULTI_CHANNEL;
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE)
+ conn->vals->capabilities |= SMB2_GLOBAL_CAP_PERSISTENT_HANDLES;
+
INIT_LIST_HEAD(&conn->preauth_sess_table);
return 0;
}
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index fb9eea631069..1e536ae27761 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -611,30 +611,6 @@ int smb2_check_user_session(struct ksmbd_work *work)
return -ENOENT;
}
-static void destroy_previous_session(struct ksmbd_conn *conn,
- struct ksmbd_user *user, u64 id)
-{
- struct ksmbd_session *prev_sess = ksmbd_session_lookup_slowpath(id);
- struct ksmbd_user *prev_user;
- struct channel *chann;
- long index;
-
- if (!prev_sess)
- return;
-
- prev_user = prev_sess->user;
-
- if (!prev_user ||
- strcmp(user->name, prev_user->name) ||
- user->passkey_sz != prev_user->passkey_sz ||
- memcmp(user->passkey, prev_user->passkey, user->passkey_sz))
- return;
-
- prev_sess->state = SMB2_SESSION_EXPIRED;
- xa_for_each(&prev_sess->ksmbd_chann_list, index, chann)
- ksmbd_conn_set_exiting(chann->conn);
-}
-
/**
* smb2_get_name() - get filename string from on the wire smb format
* @src: source buffer
@@ -1955,7 +1931,7 @@ int smb2_tree_connect(struct ksmbd_work *work)
WORK_BUFFERS(work, req, rsp);
- treename = smb_strndup_from_utf16(req->Buffer,
+ treename = smb_strndup_from_utf16((char *)req + le16_to_cpu(req->PathOffset),
le16_to_cpu(req->PathLength), true,
conn->local_nls);
if (IS_ERR(treename)) {
@@ -2012,7 +1988,12 @@ int smb2_tree_connect(struct ksmbd_work *work)
write_unlock(&sess->tree_conns_lock);
rsp->StructureSize = cpu_to_le16(16);
out_err1:
- rsp->Capabilities = 0;
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE &&
+ test_share_config_flag(share,
+ KSMBD_SHARE_FLAG_CONTINUOUS_AVAILABILITY))
+ rsp->Capabilities = SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY;
+ else
+ rsp->Capabilities = 0;
rsp->Reserved = 0;
/* default manual caching */
rsp->ShareFlags = SMB2_SHAREFLAG_MANUAL_CACHING;
@@ -2646,6 +2627,165 @@ static void ksmbd_acls_fattr(struct smb_fattr *fattr,
}
}
+enum {
+ DURABLE_RECONN_V2 = 1,
+ DURABLE_RECONN,
+ DURABLE_REQ_V2,
+ DURABLE_REQ,
+};
+
+struct durable_info {
+ struct ksmbd_file *fp;
+ unsigned short int type;
+ bool persistent;
+ bool reconnected;
+ unsigned int timeout;
+ char *CreateGuid;
+};
+
+static int parse_durable_handle_context(struct ksmbd_work *work,
+ struct smb2_create_req *req,
+ struct lease_ctx_info *lc,
+ struct durable_info *dh_info)
+{
+ struct ksmbd_conn *conn = work->conn;
+ struct create_context *context;
+ int dh_idx, err = 0;
+ u64 persistent_id = 0;
+ int req_op_level;
+ static const char * const durable_arr[] = {"DH2C", "DHnC", "DH2Q", "DHnQ"};
+
+ req_op_level = req->RequestedOplockLevel;
+ for (dh_idx = DURABLE_RECONN_V2; dh_idx <= ARRAY_SIZE(durable_arr);
+ dh_idx++) {
+ context = smb2_find_context_vals(req, durable_arr[dh_idx - 1], 4);
+ if (IS_ERR(context)) {
+ err = PTR_ERR(context);
+ goto out;
+ }
+ if (!context)
+ continue;
+
+ switch (dh_idx) {
+ case DURABLE_RECONN_V2:
+ {
+ struct create_durable_reconn_v2_req *recon_v2;
+
+ if (dh_info->type == DURABLE_RECONN ||
+ dh_info->type == DURABLE_REQ_V2) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ recon_v2 = (struct create_durable_reconn_v2_req *)context;
+ persistent_id = recon_v2->Fid.PersistentFileId;
+ dh_info->fp = ksmbd_lookup_durable_fd(persistent_id);
+ if (!dh_info->fp) {
+ ksmbd_debug(SMB, "Failed to get durable handle state\n");
+ err = -EBADF;
+ goto out;
+ }
+
+ if (memcmp(dh_info->fp->create_guid, recon_v2->CreateGuid,
+ SMB2_CREATE_GUID_SIZE)) {
+ err = -EBADF;
+ ksmbd_put_durable_fd(dh_info->fp);
+ goto out;
+ }
+
+ dh_info->type = dh_idx;
+ dh_info->reconnected = true;
+ ksmbd_debug(SMB,
+ "reconnect v2 Persistent-id from reconnect = %llu\n",
+ persistent_id);
+ break;
+ }
+ case DURABLE_RECONN:
+ {
+ struct create_durable_reconn_req *recon;
+
+ if (dh_info->type == DURABLE_RECONN_V2 ||
+ dh_info->type == DURABLE_REQ_V2) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ recon = (struct create_durable_reconn_req *)context;
+ persistent_id = recon->Data.Fid.PersistentFileId;
+ dh_info->fp = ksmbd_lookup_durable_fd(persistent_id);
+ if (!dh_info->fp) {
+ ksmbd_debug(SMB, "Failed to get durable handle state\n");
+ err = -EBADF;
+ goto out;
+ }
+
+ dh_info->type = dh_idx;
+ dh_info->reconnected = true;
+ ksmbd_debug(SMB, "reconnect Persistent-id from reconnect = %llu\n",
+ persistent_id);
+ break;
+ }
+ case DURABLE_REQ_V2:
+ {
+ struct create_durable_req_v2 *durable_v2_blob;
+
+ if (dh_info->type == DURABLE_RECONN ||
+ dh_info->type == DURABLE_RECONN_V2) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ durable_v2_blob =
+ (struct create_durable_req_v2 *)context;
+ ksmbd_debug(SMB, "Request for durable v2 open\n");
+ dh_info->fp = ksmbd_lookup_fd_cguid(durable_v2_blob->CreateGuid);
+ if (dh_info->fp) {
+ if (!memcmp(conn->ClientGUID, dh_info->fp->client_guid,
+ SMB2_CLIENT_GUID_SIZE)) {
+ if (!(req->hdr.Flags & SMB2_FLAGS_REPLAY_OPERATION)) {
+ err = -ENOEXEC;
+ goto out;
+ }
+
+ dh_info->fp->conn = conn;
+ dh_info->reconnected = true;
+ goto out;
+ }
+ }
+
+ if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
+ req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) {
+ dh_info->CreateGuid =
+ durable_v2_blob->CreateGuid;
+ dh_info->persistent =
+ le32_to_cpu(durable_v2_blob->Flags);
+ dh_info->timeout =
+ le32_to_cpu(durable_v2_blob->Timeout);
+ dh_info->type = dh_idx;
+ }
+ break;
+ }
+ case DURABLE_REQ:
+ if (dh_info->type == DURABLE_RECONN)
+ goto out;
+ if (dh_info->type == DURABLE_RECONN_V2 ||
+ dh_info->type == DURABLE_REQ_V2) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
+ req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) {
+ ksmbd_debug(SMB, "Request for durable open\n");
+ dh_info->type = dh_idx;
+ }
+ }
+ }
+
+out:
+ return err;
+}
+
/**
* smb2_open() - handler for smb file open request
* @work: smb work containing request buffer
@@ -2669,6 +2809,7 @@ int smb2_open(struct ksmbd_work *work)
struct lease_ctx_info *lc = NULL;
struct create_ea_buf_req *ea_buf = NULL;
struct oplock_info *opinfo;
+ struct durable_info dh_info = {0};
__le32 *next_ptr = NULL;
int req_op_level = 0, open_flags = 0, may_flags = 0, file_info = 0;
int rc = 0;
@@ -2708,7 +2849,7 @@ int smb2_open(struct ksmbd_work *work)
goto err_out2;
}
- name = smb2_get_name(req->Buffer,
+ name = smb2_get_name((char *)req + le16_to_cpu(req->NameOffset),
le16_to_cpu(req->NameLength),
work->conn->local_nls);
if (IS_ERR(name)) {
@@ -2749,6 +2890,49 @@ int smb2_open(struct ksmbd_work *work)
}
}
+ req_op_level = req->RequestedOplockLevel;
+
+ if (server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE &&
+ req->CreateContextsOffset) {
+ lc = parse_lease_state(req);
+ rc = parse_durable_handle_context(work, req, lc, &dh_info);
+ if (rc) {
+ ksmbd_debug(SMB, "error parsing durable handle context\n");
+ goto err_out2;
+ }
+
+ if (dh_info.reconnected == true) {
+ rc = smb2_check_durable_oplock(conn, share, dh_info.fp, lc, name);
+ if (rc) {
+ ksmbd_put_durable_fd(dh_info.fp);
+ goto err_out2;
+ }
+
+ rc = ksmbd_reopen_durable_fd(work, dh_info.fp);
+ if (rc) {
+ ksmbd_put_durable_fd(dh_info.fp);
+ goto err_out2;
+ }
+
+ if (ksmbd_override_fsids(work)) {
+ rc = -ENOMEM;
+ ksmbd_put_durable_fd(dh_info.fp);
+ goto err_out2;
+ }
+
+ fp = dh_info.fp;
+ file_info = FILE_OPENED;
+
+ rc = ksmbd_vfs_getattr(&fp->filp->f_path, &stat);
+ if (rc)
+ goto err_out2;
+
+ ksmbd_put_durable_fd(fp);
+ goto reconnected_fp;
+ }
+ } else if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
+ lc = parse_lease_state(req);
+
if (le32_to_cpu(req->ImpersonationLevel) > le32_to_cpu(IL_DELEGATE)) {
pr_err("Invalid impersonationlevel : 0x%x\n",
le32_to_cpu(req->ImpersonationLevel));
@@ -3211,10 +3395,6 @@ int smb2_open(struct ksmbd_work *work)
need_truncate = 1;
}
- req_op_level = req->RequestedOplockLevel;
- if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
- lc = parse_lease_state(req, S_ISDIR(file_inode(filp)->i_mode));
-
share_ret = ksmbd_smb_check_shared_mode(fp->filp, fp);
if (!test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_OPLOCKS) ||
(req_op_level == SMB2_OPLOCK_LEVEL_LEASE &&
@@ -3225,6 +3405,11 @@ int smb2_open(struct ksmbd_work *work)
}
} else {
if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) {
+ if (S_ISDIR(file_inode(filp)->i_mode)) {
+ lc->req_state &= ~SMB2_LEASE_WRITE_CACHING_LE;
+ lc->is_dir = true;
+ }
+
/*
* Compare parent lease using parent key. If there is no
* a lease that has same parent key, Send lease break
@@ -3321,6 +3506,26 @@ int smb2_open(struct ksmbd_work *work)
memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE);
+ if (dh_info.type == DURABLE_REQ_V2 || dh_info.type == DURABLE_REQ) {
+ if (dh_info.type == DURABLE_REQ_V2 && dh_info.persistent &&
+ test_share_config_flag(work->tcon->share_conf,
+ KSMBD_SHARE_FLAG_CONTINUOUS_AVAILABILITY))
+ fp->is_persistent = true;
+ else
+ fp->is_durable = true;
+
+ if (dh_info.type == DURABLE_REQ_V2) {
+ memcpy(fp->create_guid, dh_info.CreateGuid,
+ SMB2_CREATE_GUID_SIZE);
+ if (dh_info.timeout)
+ fp->durable_timeout = min(dh_info.timeout,
+ 300000);
+ else
+ fp->durable_timeout = 60;
+ }
+ }
+
+reconnected_fp:
rsp->StructureSize = cpu_to_le16(89);
rcu_read_lock();
opinfo = rcu_dereference(fp->f_opinfo);
@@ -3407,6 +3612,33 @@ int smb2_open(struct ksmbd_work *work)
next_off = conn->vals->create_disk_id_size;
}
+ if (dh_info.type == DURABLE_REQ || dh_info.type == DURABLE_REQ_V2) {
+ struct create_context *durable_ccontext;
+
+ durable_ccontext = (struct create_context *)(rsp->Buffer +
+ le32_to_cpu(rsp->CreateContextsLength));
+ contxt_cnt++;
+ if (dh_info.type == DURABLE_REQ) {
+ create_durable_rsp_buf(rsp->Buffer +
+ le32_to_cpu(rsp->CreateContextsLength));
+ le32_add_cpu(&rsp->CreateContextsLength,
+ conn->vals->create_durable_size);
+ iov_len += conn->vals->create_durable_size;
+ } else {
+ create_durable_v2_rsp_buf(rsp->Buffer +
+ le32_to_cpu(rsp->CreateContextsLength),
+ fp);
+ le32_add_cpu(&rsp->CreateContextsLength,
+ conn->vals->create_durable_v2_size);
+ iov_len += conn->vals->create_durable_v2_size;
+ }
+
+ if (next_ptr)
+ *next_ptr = cpu_to_le32(next_off);
+ next_ptr = &durable_ccontext->Next;
+ next_off = conn->vals->create_durable_size;
+ }
+
if (posix_ctxt) {
contxt_cnt++;
create_posix_rsp_buf(rsp->Buffer +
@@ -4084,7 +4316,7 @@ int smb2_query_dir(struct ksmbd_work *work)
}
srch_flag = req->Flags;
- srch_ptr = smb_strndup_from_utf16(req->Buffer,
+ srch_ptr = smb_strndup_from_utf16((char *)req + le16_to_cpu(req->FileNameOffset),
le16_to_cpu(req->FileNameLength), 1,
conn->local_nls);
if (IS_ERR(srch_ptr)) {
@@ -4344,7 +4576,8 @@ static int smb2_get_ea(struct ksmbd_work *work, struct ksmbd_file *fp,
sizeof(struct smb2_ea_info_req))
return -EINVAL;
- ea_req = (struct smb2_ea_info_req *)req->Buffer;
+ ea_req = (struct smb2_ea_info_req *)((char *)req +
+ le16_to_cpu(req->InputBufferOffset));
} else {
/* need to send all EAs, if no specific EA is requested*/
if (le32_to_cpu(req->Flags) & SL_RETURN_SINGLE_ENTRY)
@@ -5991,6 +6224,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
struct ksmbd_share_config *share)
{
unsigned int buf_len = le32_to_cpu(req->BufferLength);
+ char *buffer = (char *)req + le16_to_cpu(req->BufferOffset);
switch (req->FileInfoClass) {
case FILE_BASIC_INFORMATION:
@@ -5998,7 +6232,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
if (buf_len < sizeof(struct smb2_file_basic_info))
return -EINVAL;
- return set_file_basic_info(fp, (struct smb2_file_basic_info *)req->Buffer, share);
+ return set_file_basic_info(fp, (struct smb2_file_basic_info *)buffer, share);
}
case FILE_ALLOCATION_INFORMATION:
{
@@ -6006,7 +6240,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
return -EINVAL;
return set_file_allocation_info(work, fp,
- (struct smb2_file_alloc_info *)req->Buffer);
+ (struct smb2_file_alloc_info *)buffer);
}
case FILE_END_OF_FILE_INFORMATION:
{
@@ -6014,7 +6248,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
return -EINVAL;
return set_end_of_file_info(work, fp,
- (struct smb2_file_eof_info *)req->Buffer);
+ (struct smb2_file_eof_info *)buffer);
}
case FILE_RENAME_INFORMATION:
{
@@ -6022,7 +6256,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
return -EINVAL;
return set_rename_info(work, fp,
- (struct smb2_file_rename_info *)req->Buffer,
+ (struct smb2_file_rename_info *)buffer,
buf_len);
}
case FILE_LINK_INFORMATION:
@@ -6031,7 +6265,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
return -EINVAL;
return smb2_create_link(work, work->tcon->share_conf,
- (struct smb2_file_link_info *)req->Buffer,
+ (struct smb2_file_link_info *)buffer,
buf_len, fp->filp,
work->conn->local_nls);
}
@@ -6041,7 +6275,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
return -EINVAL;
return set_file_disposition_info(fp,
- (struct smb2_file_disposition_info *)req->Buffer);
+ (struct smb2_file_disposition_info *)buffer);
}
case FILE_FULL_EA_INFORMATION:
{
@@ -6054,7 +6288,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
if (buf_len < sizeof(struct smb2_ea_info))
return -EINVAL;
- return smb2_set_ea((struct smb2_ea_info *)req->Buffer,
+ return smb2_set_ea((struct smb2_ea_info *)buffer,
buf_len, &fp->filp->f_path, true);
}
case FILE_POSITION_INFORMATION:
@@ -6062,14 +6296,14 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
if (buf_len < sizeof(struct smb2_file_pos_info))
return -EINVAL;
- return set_file_position_info(fp, (struct smb2_file_pos_info *)req->Buffer);
+ return set_file_position_info(fp, (struct smb2_file_pos_info *)buffer);
}
case FILE_MODE_INFORMATION:
{
if (buf_len < sizeof(struct smb2_file_mode_info))
return -EINVAL;
- return set_file_mode_info(fp, (struct smb2_file_mode_info *)req->Buffer);
+ return set_file_mode_info(fp, (struct smb2_file_mode_info *)buffer);
}
}
@@ -6150,7 +6384,7 @@ int smb2_set_info(struct ksmbd_work *work)
}
rc = smb2_set_info_sec(fp,
le32_to_cpu(req->AdditionalInformation),
- req->Buffer,
+ (char *)req + le16_to_cpu(req->BufferOffset),
le32_to_cpu(req->BufferLength));
ksmbd_revert_fsids(work);
break;
@@ -7596,7 +7830,7 @@ static int fsctl_pipe_transceive(struct ksmbd_work *work, u64 id,
struct smb2_ioctl_rsp *rsp)
{
struct ksmbd_rpc_command *rpc_resp;
- char *data_buf = (char *)&req->Buffer[0];
+ char *data_buf = (char *)req + le32_to_cpu(req->InputOffset);
int nbytes = 0;
rpc_resp = ksmbd_rpc_ioctl(work->sess, id, data_buf,
@@ -7709,6 +7943,7 @@ int smb2_ioctl(struct ksmbd_work *work)
u64 id = KSMBD_NO_FID;
struct ksmbd_conn *conn = work->conn;
int ret = 0;
+ char *buffer;
if (work->next_smb2_rcv_hdr_off) {
req = ksmbd_req_buf_next(work);
@@ -7731,6 +7966,8 @@ int smb2_ioctl(struct ksmbd_work *work)
goto out;
}
+ buffer = (char *)req + le32_to_cpu(req->InputOffset);
+
cnt_code = le32_to_cpu(req->CtlCode);
ret = smb2_calc_max_out_buf_len(work, 48,
le32_to_cpu(req->MaxOutputResponse));
@@ -7788,7 +8025,7 @@ int smb2_ioctl(struct ksmbd_work *work)
}
ret = fsctl_validate_negotiate_info(conn,
- (struct validate_negotiate_info_req *)&req->Buffer[0],
+ (struct validate_negotiate_info_req *)buffer,
(struct validate_negotiate_info_rsp *)&rsp->Buffer[0],
in_buf_len);
if (ret < 0)
@@ -7841,7 +8078,7 @@ int smb2_ioctl(struct ksmbd_work *work)
rsp->VolatileFileId = req->VolatileFileId;
rsp->PersistentFileId = req->PersistentFileId;
fsctl_copychunk(work,
- (struct copychunk_ioctl_req *)&req->Buffer[0],
+ (struct copychunk_ioctl_req *)buffer,
le32_to_cpu(req->CtlCode),
le32_to_cpu(req->InputCount),
req->VolatileFileId,
@@ -7854,8 +8091,7 @@ int smb2_ioctl(struct ksmbd_work *work)
goto out;
}
- ret = fsctl_set_sparse(work, id,
- (struct file_sparse *)&req->Buffer[0]);
+ ret = fsctl_set_sparse(work, id, (struct file_sparse *)buffer);
if (ret < 0)
goto out;
break;
@@ -7878,7 +8114,7 @@ int smb2_ioctl(struct ksmbd_work *work)
}
zero_data =
- (struct file_zero_data_information *)&req->Buffer[0];
+ (struct file_zero_data_information *)buffer;
off = le64_to_cpu(zero_data->FileOffset);
bfz = le64_to_cpu(zero_data->BeyondFinalZero);
@@ -7909,7 +8145,7 @@ int smb2_ioctl(struct ksmbd_work *work)
}
ret = fsctl_query_allocated_ranges(work, id,
- (struct file_allocated_range_buffer *)&req->Buffer[0],
+ (struct file_allocated_range_buffer *)buffer,
(struct file_allocated_range_buffer *)&rsp->Buffer[0],
out_buf_len /
sizeof(struct file_allocated_range_buffer), &nbytes);
@@ -7953,7 +8189,7 @@ int smb2_ioctl(struct ksmbd_work *work)
goto out;
}
- dup_ext = (struct duplicate_extents_to_file *)&req->Buffer[0];
+ dup_ext = (struct duplicate_extents_to_file *)buffer;
fp_in = ksmbd_lookup_fd_slow(work, dup_ext->VolatileFileHandle,
dup_ext->PersistentFileHandle);
diff --git a/fs/smb/server/smb2pdu.h b/fs/smb/server/smb2pdu.h
index d12cfd3b0927..643f5e1cfe35 100644
--- a/fs/smb/server/smb2pdu.h
+++ b/fs/smb/server/smb2pdu.h
@@ -64,7 +64,7 @@ struct preauth_integrity_info {
#define SMB2_SESSION_TIMEOUT (10 * HZ)
struct create_durable_req_v2 {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le32 Timeout;
__le32 Flags;
@@ -72,8 +72,20 @@ struct create_durable_req_v2 {
__u8 CreateGuid[16];
} __packed;
+struct create_durable_reconn_req {
+ struct create_context_hdr ccontext;
+ __u8 Name[8];
+ union {
+ __u8 Reserved[16];
+ struct {
+ __u64 PersistentFileId;
+ __u64 VolatileFileId;
+ } Fid;
+ } Data;
+} __packed;
+
struct create_durable_reconn_v2_req {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct {
__u64 PersistentFileId;
@@ -84,13 +96,13 @@ struct create_durable_reconn_v2_req {
} __packed;
struct create_alloc_size_req {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le64 AllocationSize;
} __packed;
struct create_durable_rsp {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
union {
__u8 Reserved[8];
@@ -98,8 +110,11 @@ struct create_durable_rsp {
} Data;
} __packed;
+/* See MS-SMB2 2.2.13.2.11 */
+/* Flags */
+#define SMB2_DHANDLE_FLAG_PERSISTENT 0x00000002
struct create_durable_v2_rsp {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le32 Timeout;
__le32 Flags;
@@ -107,7 +122,7 @@ struct create_durable_v2_rsp {
/* equivalent of the contents of SMB3.1.1 POSIX open context response */
struct create_posix_rsp {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[16];
__le32 nlink;
__le32 reparse_tag;
@@ -366,13 +381,13 @@ struct smb2_ea_info {
} __packed; /* level 15 Query */
struct create_ea_buf_req {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct smb2_ea_info ea;
} __packed;
struct create_sd_buf_req {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct smb_ntsd ntsd;
} __packed;
diff --git a/fs/smb/server/transport_tcp.c b/fs/smb/server/transport_tcp.c
index 0012919309f1..6633fa78e9b9 100644
--- a/fs/smb/server/transport_tcp.c
+++ b/fs/smb/server/transport_tcp.c
@@ -365,6 +365,7 @@ static int ksmbd_tcp_readv(struct tcp_transport *t, struct kvec *iov_orig,
* @t: TCP transport instance
* @buf: buffer to store read data from socket
* @to_read: number of bytes to read from socket
+ * @max_retries: number of retries if reading from socket fails
*
* Return: on success return number of bytes read from socket,
* otherwise return error number
@@ -416,6 +417,7 @@ static void tcp_destroy_socket(struct socket *ksmbd_socket)
/**
* create_socket - create socket for ksmbd/0
+ * @iface: interface to bind the created socket to
*
* Return: 0 on success, error number otherwise
*/
diff --git a/fs/smb/server/vfs.c b/fs/smb/server/vfs.c
index 626406b0cf4a..255811996935 100644
--- a/fs/smb/server/vfs.c
+++ b/fs/smb/server/vfs.c
@@ -49,6 +49,10 @@ static void ksmbd_vfs_inherit_owner(struct ksmbd_work *work,
/**
* ksmbd_vfs_lock_parent() - lock parent dentry if it is stable
+ * @parent: parent dentry
+ * @child: child dentry
+ *
+ * Returns: %0 on success, %-ENOENT if the parent dentry is not stable
*/
int ksmbd_vfs_lock_parent(struct dentry *parent, struct dentry *child)
{
@@ -360,7 +364,7 @@ static int check_lock_range(struct file *filp, loff_t start, loff_t end,
/**
* ksmbd_vfs_read() - vfs helper for smb file read
* @work: smb work
- * @fid: file id of open file
+ * @fp: ksmbd file pointer
* @count: read byte count
* @pos: file pos
* @rbuf: read data buffer
@@ -474,7 +478,7 @@ static int ksmbd_vfs_stream_write(struct ksmbd_file *fp, char *buf, loff_t *pos,
/**
* ksmbd_vfs_write() - vfs helper for smb file write
* @work: work
- * @fid: file id of open file
+ * @fp: ksmbd file pointer
* @buf: buf containing data for writing
* @count: read byte count
* @pos: file pos
@@ -545,10 +549,8 @@ int ksmbd_vfs_write(struct ksmbd_work *work, struct ksmbd_file *fp,
/**
* ksmbd_vfs_getattr() - vfs helper for smb getattr
- * @work: work
- * @fid: file id of open file
- * @attrs: inode attributes
- *
+ * @path: path of dentry
+ * @stat: pointer to returned kernel stat structure
* Return: 0 on success, otherwise error
*/
int ksmbd_vfs_getattr(const struct path *path, struct kstat *stat)
@@ -565,6 +567,7 @@ int ksmbd_vfs_getattr(const struct path *path, struct kstat *stat)
* ksmbd_vfs_fsync() - vfs helper for smb fsync
* @work: work
* @fid: file id of open file
+ * @p_id: persistent file id
*
* Return: 0 on success, otherwise error
*/
@@ -587,7 +590,8 @@ int ksmbd_vfs_fsync(struct ksmbd_work *work, u64 fid, u64 p_id)
/**
* ksmbd_vfs_remove_file() - vfs helper for smb rmdir or unlink
- * @name: directory or file name that is relative to share
+ * @work: work
+ * @path: path of dentry
*
* Return: 0 on success, otherwise error
*/
@@ -623,6 +627,7 @@ int ksmbd_vfs_remove_file(struct ksmbd_work *work, const struct path *path)
/**
* ksmbd_vfs_link() - vfs helper for creating smb hardlink
+ * @work: work
* @oldname: source file name
* @newname: hardlink name that is relative to share
*
@@ -800,7 +805,7 @@ int ksmbd_vfs_rename(struct ksmbd_work *work, const struct path *old_path,
/**
* ksmbd_vfs_truncate() - vfs helper for smb file truncate
* @work: work
- * @fid: file id of old file
+ * @fp: ksmbd file pointer
* @size: truncate to given size
*
* Return: 0 on success, otherwise error
@@ -843,7 +848,6 @@ int ksmbd_vfs_truncate(struct ksmbd_work *work,
* ksmbd_vfs_listxattr() - vfs helper for smb list extended attributes
* @dentry: dentry of file for listing xattrs
* @list: destination buffer
- * @size: destination buffer length
*
* Return: xattr list length on success, otherwise error
*/
@@ -952,7 +956,7 @@ int ksmbd_vfs_setxattr(struct mnt_idmap *idmap,
/**
* ksmbd_vfs_set_fadvise() - convert smb IO caching options to linux options
* @filp: file pointer for IO
- * @options: smb IO options
+ * @option: smb IO options
*/
void ksmbd_vfs_set_fadvise(struct file *filp, __le32 option)
{
@@ -1164,6 +1168,7 @@ static bool __caseless_lookup(struct dir_context *ctx, const char *name,
* @dir: path info
* @name: filename to lookup
* @namelen: filename length
+ * @um: &struct unicode_map to use
*
* Return: 0 on success, otherwise error
*/
@@ -1194,6 +1199,7 @@ static int ksmbd_vfs_lookup_in_dir(const struct path *dir, char *name,
/**
* ksmbd_vfs_kern_path_locked() - lookup a file and get path info
+ * @work: work
* @name: file path that is relative to share
* @flags: lookup flags
* @parent_path: if lookup succeed, return parent_path info
@@ -1641,6 +1647,8 @@ int ksmbd_vfs_get_dos_attrib_xattr(struct mnt_idmap *idmap,
* ksmbd_vfs_init_kstat() - convert unix stat information to smb stat format
* @p: destination buffer
* @ksmbd_kstat: ksmbd kstat wrapper
+ *
+ * Returns: pointer to the converted &struct file_directory_info
*/
void *ksmbd_vfs_init_kstat(char **p, struct ksmbd_kstat *ksmbd_kstat)
{
diff --git a/fs/smb/server/vfs_cache.c b/fs/smb/server/vfs_cache.c
index 4e82ff627d12..030f70700036 100644
--- a/fs/smb/server/vfs_cache.c
+++ b/fs/smb/server/vfs_cache.c
@@ -305,7 +305,8 @@ static void __ksmbd_close_fd(struct ksmbd_file_table *ft, struct ksmbd_file *fp)
fd_limit_close();
__ksmbd_remove_durable_fd(fp);
- __ksmbd_remove_fd(ft, fp);
+ if (ft)
+ __ksmbd_remove_fd(ft, fp);
close_id_del_oplock(fp);
filp = fp->filp;
@@ -465,11 +466,32 @@ struct ksmbd_file *ksmbd_lookup_fd_slow(struct ksmbd_work *work, u64 id,
return fp;
}
-struct ksmbd_file *ksmbd_lookup_durable_fd(unsigned long long id)
+struct ksmbd_file *ksmbd_lookup_global_fd(unsigned long long id)
{
return __ksmbd_lookup_fd(&global_ft, id);
}
+struct ksmbd_file *ksmbd_lookup_durable_fd(unsigned long long id)
+{
+ struct ksmbd_file *fp;
+
+ fp = __ksmbd_lookup_fd(&global_ft, id);
+ if (fp && fp->conn) {
+ ksmbd_put_durable_fd(fp);
+ fp = NULL;
+ }
+
+ return fp;
+}
+
+void ksmbd_put_durable_fd(struct ksmbd_file *fp)
+{
+ if (!atomic_dec_and_test(&fp->refcount))
+ return;
+
+ __ksmbd_close_fd(NULL, fp);
+}
+
struct ksmbd_file *ksmbd_lookup_fd_cguid(char *cguid)
{
struct ksmbd_file *fp = NULL;
@@ -639,6 +661,32 @@ __close_file_table_ids(struct ksmbd_file_table *ft,
return num;
}
+static inline bool is_reconnectable(struct ksmbd_file *fp)
+{
+ struct oplock_info *opinfo = opinfo_get(fp);
+ bool reconn = false;
+
+ if (!opinfo)
+ return false;
+
+ if (opinfo->op_state != OPLOCK_STATE_NONE) {
+ opinfo_put(opinfo);
+ return false;
+ }
+
+ if (fp->is_resilient || fp->is_persistent)
+ reconn = true;
+ else if (fp->is_durable && opinfo->is_lease &&
+ opinfo->o_lease->state & SMB2_LEASE_HANDLE_CACHING_LE)
+ reconn = true;
+
+ else if (fp->is_durable && opinfo->level == SMB2_OPLOCK_LEVEL_BATCH)
+ reconn = true;
+
+ opinfo_put(opinfo);
+ return reconn;
+}
+
static bool tree_conn_fd_check(struct ksmbd_tree_connect *tcon,
struct ksmbd_file *fp)
{
@@ -648,7 +696,28 @@ static bool tree_conn_fd_check(struct ksmbd_tree_connect *tcon,
static bool session_fd_check(struct ksmbd_tree_connect *tcon,
struct ksmbd_file *fp)
{
- return false;
+ struct ksmbd_inode *ci;
+ struct oplock_info *op;
+ struct ksmbd_conn *conn;
+
+ if (!is_reconnectable(fp))
+ return false;
+
+ conn = fp->conn;
+ ci = fp->f_ci;
+ write_lock(&ci->m_lock);
+ list_for_each_entry_rcu(op, &ci->m_op_list, op_entry) {
+ if (op->conn != conn)
+ continue;
+ op->conn = NULL;
+ }
+ write_unlock(&ci->m_lock);
+
+ fp->conn = NULL;
+ fp->tcon = NULL;
+ fp->volatile_id = KSMBD_NO_FID;
+
+ return true;
}
void ksmbd_close_tree_conn_fds(struct ksmbd_work *work)
@@ -687,6 +756,68 @@ void ksmbd_free_global_file_table(void)
ksmbd_destroy_file_table(&global_ft);
}
+int ksmbd_validate_name_reconnect(struct ksmbd_share_config *share,
+ struct ksmbd_file *fp, char *name)
+{
+ char *pathname, *ab_pathname;
+ int ret = 0;
+
+ pathname = kmalloc(PATH_MAX, GFP_KERNEL);
+ if (!pathname)
+ return -EACCES;
+
+ ab_pathname = d_path(&fp->filp->f_path, pathname, PATH_MAX);
+ if (IS_ERR(ab_pathname)) {
+ kfree(pathname);
+ return -EACCES;
+ }
+
+ if (name && strcmp(&ab_pathname[share->path_sz + 1], name)) {
+ ksmbd_debug(SMB, "invalid name reconnect %s\n", name);
+ ret = -EINVAL;
+ }
+
+ kfree(pathname);
+
+ return ret;
+}
+
+int ksmbd_reopen_durable_fd(struct ksmbd_work *work, struct ksmbd_file *fp)
+{
+ struct ksmbd_inode *ci;
+ struct oplock_info *op;
+
+ if (!fp->is_durable || fp->conn || fp->tcon) {
+ pr_err("Invalid durable fd [%p:%p]\n", fp->conn, fp->tcon);
+ return -EBADF;
+ }
+
+ if (has_file_id(fp->volatile_id)) {
+ pr_err("Still in use durable fd: %llu\n", fp->volatile_id);
+ return -EBADF;
+ }
+
+ fp->conn = work->conn;
+ fp->tcon = work->tcon;
+
+ ci = fp->f_ci;
+ write_lock(&ci->m_lock);
+ list_for_each_entry_rcu(op, &ci->m_op_list, op_entry) {
+ if (op->conn)
+ continue;
+ op->conn = fp->conn;
+ }
+ write_unlock(&ci->m_lock);
+
+ __open_id(&work->sess->file_table, fp, OPEN_ID_TYPE_VOLATILE_ID);
+ if (!has_file_id(fp->volatile_id)) {
+ fp->conn = NULL;
+ fp->tcon = NULL;
+ return -EBADF;
+ }
+ return 0;
+}
+
int ksmbd_init_file_table(struct ksmbd_file_table *ft)
{
ft->idr = kzalloc(sizeof(struct idr), GFP_KERNEL);
diff --git a/fs/smb/server/vfs_cache.h b/fs/smb/server/vfs_cache.h
index a528f0cc775a..ed44fb4e18e7 100644
--- a/fs/smb/server/vfs_cache.h
+++ b/fs/smb/server/vfs_cache.h
@@ -14,6 +14,7 @@
#include <linux/workqueue.h>
#include "vfs.h"
+#include "mgmt/share_config.h"
/* Windows style file permissions for extended response */
#define FILE_GENERIC_ALL 0x1F01FF
@@ -106,6 +107,9 @@ struct ksmbd_file {
int dot_dotdot[2];
unsigned int f_state;
bool reserve_lease_break;
+ bool is_durable;
+ bool is_persistent;
+ bool is_resilient;
};
static inline void set_ctx_actor(struct dir_context *ctx,
@@ -141,7 +145,9 @@ struct ksmbd_file *ksmbd_lookup_fd_slow(struct ksmbd_work *work, u64 id,
void ksmbd_fd_put(struct ksmbd_work *work, struct ksmbd_file *fp);
struct ksmbd_inode *ksmbd_inode_lookup_lock(struct dentry *d);
void ksmbd_inode_put(struct ksmbd_inode *ci);
+struct ksmbd_file *ksmbd_lookup_global_fd(unsigned long long id);
struct ksmbd_file *ksmbd_lookup_durable_fd(unsigned long long id);
+void ksmbd_put_durable_fd(struct ksmbd_file *fp);
struct ksmbd_file *ksmbd_lookup_fd_cguid(char *cguid);
struct ksmbd_file *ksmbd_lookup_fd_inode(struct dentry *dentry);
unsigned int ksmbd_open_durable_fd(struct ksmbd_file *fp);
@@ -173,6 +179,9 @@ void ksmbd_set_inode_pending_delete(struct ksmbd_file *fp);
void ksmbd_clear_inode_pending_delete(struct ksmbd_file *fp);
void ksmbd_fd_set_delete_on_close(struct ksmbd_file *fp,
int file_info);
+int ksmbd_reopen_durable_fd(struct ksmbd_work *work, struct ksmbd_file *fp);
+int ksmbd_validate_name_reconnect(struct ksmbd_share_config *share,
+ struct ksmbd_file *fp, char *name);
int ksmbd_init_file_cache(void);
void ksmbd_exit_file_cache(void);
#endif /* __VFS_CACHE_H__ */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 5b6e86b2c37a..a7b65d4ab616 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -229,6 +229,19 @@ static inline unsigned int disk_openers(struct gendisk *disk)
return atomic_read(&disk->part0->bd_openers);
}
+/**
+ * disk_has_partscan - return %true if partition scanning is enabled on a disk
+ * @disk: disk to check
+ *
+ * Returns %true if partitions scanning is enabled for @disk, or %false if
+ * partition scanning is disabled either permanently or temporarily.
+ */
+static inline bool disk_has_partscan(struct gendisk *disk)
+{
+ return !(disk->flags & (GENHD_FL_NO_PART | GENHD_FL_HIDDEN)) &&
+ !test_bit(GD_SUPPRESS_PART_SCAN, &disk->state);
+}
+
/*
* The gendisk is refcounted by the part0 block_device, and the bd_device
* therein is also used for device model presentation in sysfs.
diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h
index fc0d6f32c687..dfaae3e3ec15 100644
--- a/include/linux/bpf_types.h
+++ b/include/linux/bpf_types.h
@@ -142,9 +142,12 @@ BPF_LINK_TYPE(BPF_LINK_TYPE_ITER, iter)
#ifdef CONFIG_NET
BPF_LINK_TYPE(BPF_LINK_TYPE_NETNS, netns)
BPF_LINK_TYPE(BPF_LINK_TYPE_XDP, xdp)
+BPF_LINK_TYPE(BPF_LINK_TYPE_NETFILTER, netfilter)
+BPF_LINK_TYPE(BPF_LINK_TYPE_TCX, tcx)
#endif
#ifdef CONFIG_PERF_EVENTS
BPF_LINK_TYPE(BPF_LINK_TYPE_PERF_EVENT, perf)
#endif
BPF_LINK_TYPE(BPF_LINK_TYPE_KPROBE_MULTI, kprobe_multi)
BPF_LINK_TYPE(BPF_LINK_TYPE_STRUCT_OPS, struct_ops)
+BPF_LINK_TYPE(BPF_LINK_TYPE_UPROBE_MULTI, uprobe_multi)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 35c5f75a3a5e..7367ef7e92f5 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1662,6 +1662,15 @@ struct hci_cp_le_set_event_mask {
__u8 mask[8];
} __packed;
+/* BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 4, Part E
+ * 7.8.2 LE Read Buffer Size command
+ * MAX_LE_MTU is 0xffff.
+ * 0 is also valid. It means that no dedicated LE Buffer exists.
+ * It should use the HCI_Read_Buffer_Size command and mtu is shared
+ * between BR/EDR and LE.
+ */
+#define HCI_MIN_LE_MTU 0x001b
+
#define HCI_OP_LE_READ_BUFFER_SIZE 0x2002
struct hci_rp_le_read_buffer_size {
__u8 status;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e6f659ce534e..b5b0a1e1bba0 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -707,6 +707,7 @@ struct hci_conn {
__u16 handle;
__u16 sync_handle;
__u16 state;
+ __u16 mtu;
__u8 mode;
__u8 type;
__u8 role;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 1f8c8d65350c..aea7f06c107e 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -939,11 +939,37 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
{
struct hci_conn *conn;
+ switch (type) {
+ case ACL_LINK:
+ if (!hdev->acl_mtu)
+ return ERR_PTR(-ECONNREFUSED);
+ break;
+ case ISO_LINK:
+ if (hdev->iso_mtu)
+ /* Dedicated ISO Buffer exists */
+ break;
+ fallthrough;
+ case LE_LINK:
+ if (hdev->le_mtu && hdev->le_mtu < HCI_MIN_LE_MTU)
+ return ERR_PTR(-ECONNREFUSED);
+ if (!hdev->le_mtu && hdev->acl_mtu < HCI_MIN_LE_MTU)
+ return ERR_PTR(-ECONNREFUSED);
+ break;
+ case SCO_LINK:
+ case ESCO_LINK:
+ if (!hdev->sco_pkts)
+ /* Controller does not support SCO or eSCO over HCI */
+ return ERR_PTR(-ECONNREFUSED);
+ break;
+ default:
+ return ERR_PTR(-ECONNREFUSED);
+ }
+
bt_dev_dbg(hdev, "dst %pMR handle 0x%4.4x", dst, handle);
conn = kzalloc(sizeof(*conn), GFP_KERNEL);
if (!conn)
- return NULL;
+ return ERR_PTR(-ENOMEM);
bacpy(&conn->dst, dst);
bacpy(&conn->src, &hdev->bdaddr);
@@ -974,10 +1000,12 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
switch (type) {
case ACL_LINK:
conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK;
+ conn->mtu = hdev->acl_mtu;
break;
case LE_LINK:
/* conn->src should reflect the local identity address */
hci_copy_identity_address(hdev, &conn->src, &conn->src_type);
+ conn->mtu = hdev->le_mtu ? hdev->le_mtu : hdev->acl_mtu;
break;
case ISO_LINK:
/* conn->src should reflect the local identity address */
@@ -989,6 +1017,8 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
else if (conn->role == HCI_ROLE_MASTER)
conn->cleanup = cis_cleanup;
+ conn->mtu = hdev->iso_mtu ? hdev->iso_mtu :
+ hdev->le_mtu ? hdev->le_mtu : hdev->acl_mtu;
break;
case SCO_LINK:
if (lmp_esco_capable(hdev))
@@ -996,9 +1026,12 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
(hdev->esco_type & EDR_ESCO_MASK);
else
conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
+
+ conn->mtu = hdev->sco_mtu;
break;
case ESCO_LINK:
conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK;
+ conn->mtu = hdev->sco_mtu;
break;
}
@@ -1041,7 +1074,7 @@ struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
handle = hci_conn_hash_alloc_unset(hdev);
if (unlikely(handle < 0))
- return NULL;
+ return ERR_PTR(-ECONNREFUSED);
return hci_conn_add(hdev, type, dst, role, handle);
}
@@ -1384,8 +1417,8 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
bacpy(&conn->dst, dst);
} else {
conn = hci_conn_add_unset(hdev, LE_LINK, dst, role);
- if (!conn)
- return ERR_PTR(-ENOMEM);
+ if (IS_ERR(conn))
+ return conn;
hci_conn_hold(conn);
conn->pending_sec_level = sec_level;
}
@@ -1549,8 +1582,8 @@ static struct hci_conn *hci_add_bis(struct hci_dev *hdev, bdaddr_t *dst,
return ERR_PTR(-EADDRINUSE);
conn = hci_conn_add_unset(hdev, ISO_LINK, dst, HCI_ROLE_MASTER);
- if (!conn)
- return ERR_PTR(-ENOMEM);
+ if (IS_ERR(conn))
+ return conn;
conn->state = BT_CONNECT;
@@ -1593,8 +1626,8 @@ struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
BT_DBG("requesting refresh of dst_addr");
conn = hci_conn_add_unset(hdev, LE_LINK, dst, HCI_ROLE_MASTER);
- if (!conn)
- return ERR_PTR(-ENOMEM);
+ if (IS_ERR(conn))
+ return conn;
if (hci_explicit_conn_params_set(hdev, dst, dst_type) < 0) {
hci_conn_del(conn);
@@ -1641,8 +1674,8 @@ struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
if (!acl) {
acl = hci_conn_add_unset(hdev, ACL_LINK, dst, HCI_ROLE_MASTER);
- if (!acl)
- return ERR_PTR(-ENOMEM);
+ if (IS_ERR(acl))
+ return acl;
}
hci_conn_hold(acl);
@@ -1701,9 +1734,9 @@ struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
sco = hci_conn_hash_lookup_ba(hdev, type, dst);
if (!sco) {
sco = hci_conn_add_unset(hdev, type, dst, HCI_ROLE_MASTER);
- if (!sco) {
+ if (IS_ERR(sco)) {
hci_conn_drop(acl);
- return ERR_PTR(-ENOMEM);
+ return sco;
}
}
@@ -1893,8 +1926,8 @@ struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
qos->ucast.cis);
if (!cis) {
cis = hci_conn_add_unset(hdev, ISO_LINK, dst, HCI_ROLE_MASTER);
- if (!cis)
- return ERR_PTR(-ENOMEM);
+ if (IS_ERR(cis))
+ return cis;
cis->cleanup = cis_cleanup;
cis->dst_type = dst_type;
cis->iso_qos.ucast.cig = BT_ISO_QOS_CIG_UNSET;
@@ -2029,14 +2062,8 @@ static void hci_iso_qos_setup(struct hci_dev *hdev, struct hci_conn *conn,
struct bt_iso_io_qos *qos, __u8 phy)
{
/* Only set MTU if PHY is enabled */
- if (!qos->sdu && qos->phy) {
- if (hdev->iso_mtu > 0)
- qos->sdu = hdev->iso_mtu;
- else if (hdev->le_mtu > 0)
- qos->sdu = hdev->le_mtu;
- else
- qos->sdu = hdev->acl_mtu;
- }
+ if (!qos->sdu && qos->phy)
+ qos->sdu = conn->mtu;
/* Use the same PHY as ACL if set to any */
if (qos->phy == BT_ISO_PHY_ANY)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 9274d3255049..361e2c68a51a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -958,6 +958,9 @@ static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
+ if (!hdev->acl_mtu || !hdev->acl_pkts)
+ return HCI_ERROR_INVALID_PARAMETERS;
+
return rp->status;
}
@@ -1267,6 +1270,9 @@ static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
+ if (hdev->le_mtu && hdev->le_mtu < HCI_MIN_LE_MTU)
+ return HCI_ERROR_INVALID_PARAMETERS;
+
return rp->status;
}
@@ -2351,8 +2357,8 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
if (!conn) {
conn = hci_conn_add_unset(hdev, ACL_LINK, &cp->bdaddr,
HCI_ROLE_MASTER);
- if (!conn)
- bt_dev_err(hdev, "no memory for new connection");
+ if (IS_ERR(conn))
+ bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
}
}
@@ -3165,8 +3171,8 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
BDADDR_BREDR)) {
conn = hci_conn_add_unset(hdev, ev->link_type,
&ev->bdaddr, HCI_ROLE_SLAVE);
- if (!conn) {
- bt_dev_err(hdev, "no memory for new conn");
+ if (IS_ERR(conn)) {
+ bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
goto unlock;
}
} else {
@@ -3356,8 +3362,8 @@ static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
if (!conn) {
conn = hci_conn_add_unset(hdev, ev->link_type, &ev->bdaddr,
HCI_ROLE_SLAVE);
- if (!conn) {
- bt_dev_err(hdev, "no memory for new connection");
+ if (IS_ERR(conn)) {
+ bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
goto unlock;
}
}
@@ -3834,6 +3840,9 @@ static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
+ if (hdev->le_mtu && hdev->le_mtu < HCI_MIN_LE_MTU)
+ return HCI_ERROR_INVALID_PARAMETERS;
+
return rp->status;
}
@@ -5925,8 +5934,8 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
goto unlock;
conn = hci_conn_add_unset(hdev, LE_LINK, bdaddr, role);
- if (!conn) {
- bt_dev_err(hdev, "no memory for new connection");
+ if (IS_ERR(conn)) {
+ bt_dev_err(hdev, "connection err: %ld", PTR_ERR(conn));
goto unlock;
}
@@ -7051,7 +7060,7 @@ static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
if (!cis) {
cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE,
cis_handle);
- if (!cis) {
+ if (IS_ERR(cis)) {
hci_le_reject_cis(hdev, ev->cis_handle);
goto unlock;
}
@@ -7170,7 +7179,7 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
if (!bis) {
bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
HCI_ROLE_SLAVE, handle);
- if (!bis)
+ if (IS_ERR(bis))
continue;
}
@@ -7242,7 +7251,7 @@ static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
pa_sync = hci_conn_add_unset(hdev, ISO_LINK, BDADDR_ANY,
HCI_ROLE_SLAVE);
- if (!pa_sync)
+ if (IS_ERR(pa_sync))
goto unlock;
pa_sync->sync_handle = le16_to_cpu(ev->sync_handle);
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index 2f63ea9e62ec..05b9edb480f0 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -1135,7 +1135,7 @@ static int iso_sock_sendmsg(struct socket *sock, struct msghdr *msg,
return -ENOTCONN;
}
- mtu = iso_pi(sk)->conn->hcon->hdev->iso_mtu;
+ mtu = iso_pi(sk)->conn->hcon->mtu;
release_sock(sk);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 1e961cfaa07b..ab5d0204086f 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3905,13 +3905,12 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn,
return 0;
}
-static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
- struct l2cap_cmd_hdr *cmd,
- u8 *data, u8 rsp_code, u8 amp_id)
+static void l2cap_connect(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd,
+ u8 *data, u8 rsp_code, u8 amp_id)
{
struct l2cap_conn_req *req = (struct l2cap_conn_req *) data;
struct l2cap_conn_rsp rsp;
- struct l2cap_chan *chan = NULL, *pchan;
+ struct l2cap_chan *chan = NULL, *pchan = NULL;
int result, status = L2CAP_CS_NO_INFO;
u16 dcid = 0, scid = __le16_to_cpu(req->scid);
@@ -3924,7 +3923,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
&conn->hcon->dst, ACL_LINK);
if (!pchan) {
result = L2CAP_CR_BAD_PSM;
- goto sendresp;
+ goto response;
}
mutex_lock(&conn->chan_lock);
@@ -4011,17 +4010,15 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
}
response:
- l2cap_chan_unlock(pchan);
- mutex_unlock(&conn->chan_lock);
- l2cap_chan_put(pchan);
-
-sendresp:
rsp.scid = cpu_to_le16(scid);
rsp.dcid = cpu_to_le16(dcid);
rsp.result = cpu_to_le16(result);
rsp.status = cpu_to_le16(status);
l2cap_send_cmd(conn, cmd->ident, rsp_code, sizeof(rsp), &rsp);
+ if (!pchan)
+ return;
+
if (result == L2CAP_CR_PEND && status == L2CAP_CS_NO_INFO) {
struct l2cap_info_req info;
info.type = cpu_to_le16(L2CAP_IT_FEAT_MASK);
@@ -4044,7 +4041,9 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
chan->num_conf_req++;
}
- return chan;
+ l2cap_chan_unlock(pchan);
+ mutex_unlock(&conn->chan_lock);
+ l2cap_chan_put(pchan);
}
static int l2cap_connect_req(struct l2cap_conn *conn,
@@ -6242,7 +6241,7 @@ static int l2cap_finish_move(struct l2cap_chan *chan)
BT_DBG("chan %p", chan);
chan->rx_state = L2CAP_RX_STATE_RECV;
- chan->conn->mtu = chan->conn->hcon->hdev->acl_mtu;
+ chan->conn->mtu = chan->conn->hcon->mtu;
return l2cap_resegment(chan);
}
@@ -6309,7 +6308,7 @@ static int l2cap_rx_state_wait_f(struct l2cap_chan *chan,
*/
chan->next_tx_seq = control->reqseq;
chan->unacked_frames = 0;
- chan->conn->mtu = chan->conn->hcon->hdev->acl_mtu;
+ chan->conn->mtu = chan->conn->hcon->mtu;
err = l2cap_resegment(chan);
@@ -6849,18 +6848,7 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon)
BT_DBG("hcon %p conn %p hchan %p", hcon, conn, hchan);
- switch (hcon->type) {
- case LE_LINK:
- if (hcon->hdev->le_mtu) {
- conn->mtu = hcon->hdev->le_mtu;
- break;
- }
- fallthrough;
- default:
- conn->mtu = hcon->hdev->acl_mtu;
- break;
- }
-
+ conn->mtu = hcon->mtu;
conn->feat_mask = 0;
conn->local_fixed_chan = L2CAP_FC_SIG_BREDR | L2CAP_FC_CONNLESS;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index ede7391f3aa9..3c3650902c83 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -126,7 +126,6 @@ static void sco_sock_clear_timer(struct sock *sk)
/* ---- SCO connections ---- */
static struct sco_conn *sco_conn_add(struct hci_conn *hcon)
{
- struct hci_dev *hdev = hcon->hdev;
struct sco_conn *conn = hcon->sco_data;
if (conn) {
@@ -144,9 +143,10 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon)
hcon->sco_data = conn;
conn->hcon = hcon;
+ conn->mtu = hcon->mtu;
- if (hdev->sco_mtu > 0)
- conn->mtu = hdev->sco_mtu;
+ if (hcon->mtu > 0)
+ conn->mtu = hcon->mtu;
else
conn->mtu = 60;
diff --git a/security/keys/trusted-keys/trusted_tpm2.c b/security/keys/trusted-keys/trusted_tpm2.c
index bc700f85f80b..ea277c55a38d 100644
--- a/security/keys/trusted-keys/trusted_tpm2.c
+++ b/security/keys/trusted-keys/trusted_tpm2.c
@@ -38,6 +38,7 @@ static int tpm2_key_encode(struct trusted_key_payload *payload,
u8 *end_work = scratch + SCRATCH_SIZE;
u8 *priv, *pub;
u16 priv_len, pub_len;
+ int ret;
priv_len = get_unaligned_be16(src) + 2;
priv = src;
@@ -57,8 +58,10 @@ static int tpm2_key_encode(struct trusted_key_payload *payload,
unsigned char bool[3], *w = bool;
/* tag 0 is emptyAuth */
w = asn1_encode_boolean(w, w + sizeof(bool), true);
- if (WARN(IS_ERR(w), "BUG: Boolean failed to encode"))
- return PTR_ERR(w);
+ if (WARN(IS_ERR(w), "BUG: Boolean failed to encode")) {
+ ret = PTR_ERR(w);
+ goto err;
+ }
work = asn1_encode_tag(work, end_work, 0, bool, w - bool);
}
@@ -69,8 +72,10 @@ static int tpm2_key_encode(struct trusted_key_payload *payload,
* trigger, so if it does there's something nefarious going on
*/
if (WARN(work - scratch + pub_len + priv_len + 14 > SCRATCH_SIZE,
- "BUG: scratch buffer is too small"))
- return -EINVAL;
+ "BUG: scratch buffer is too small")) {
+ ret = -EINVAL;
+ goto err;
+ }
work = asn1_encode_integer(work, end_work, options->keyhandle);
work = asn1_encode_octet_string(work, end_work, pub, pub_len);
@@ -79,10 +84,18 @@ static int tpm2_key_encode(struct trusted_key_payload *payload,
work1 = payload->blob;
work1 = asn1_encode_sequence(work1, work1 + sizeof(payload->blob),
scratch, work - scratch);
- if (WARN(IS_ERR(work1), "BUG: ASN.1 encoder failed"))
- return PTR_ERR(work1);
+ if (IS_ERR(work1)) {
+ ret = PTR_ERR(work1);
+ pr_err("BUG: ASN.1 encoder failed with %d\n", ret);
+ goto err;
+ }
+ kfree(scratch);
return work1 - payload->blob;
+
+err:
+ kfree(scratch);
+ return ret;
}
struct tpm2_key_context {
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
index e8eecbc83a60..ad7b97e16f37 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -48,6 +48,7 @@
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
+#include <string.h>
#include <stdio.h>
#include <sys/utsname.h>
#endif
@@ -156,6 +157,19 @@ static inline void ksft_print_msg(const char *msg, ...)
va_end(args);
}
+static inline void ksft_perror(const char *msg)
+{
+#ifndef NOLIBC
+ ksft_print_msg("%s: %s (%d)\n", msg, strerror(errno), errno);
+#else
+ /*
+ * nolibc doesn't provide strerror() and it seems
+ * inappropriate to add one, just print the errno.
+ */
+ ksft_print_msg("%s: %d)\n", msg, errno);
+#endif
+}
+
static inline void ksft_test_result_pass(const char *msg, ...)
{
int saved_errno = errno;
