First move of elements depending on user data.
Signed-off-by: Gustavo F. Padovan <padovan@xxxxxxxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 3 +-
net/bluetooth/l2cap_core.c | 88 +++++++++++++++++++++--------------------
net/bluetooth/l2cap_sock.c | 10 +++-
3 files changed, 53 insertions(+), 48 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 537e3c1..b3bb3d4 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -291,6 +291,7 @@ struct l2cap_chan {
__u8 num_conf_req;
__u8 num_conf_rsp;
+ __u8 conf_state;
__u16 conn_state;
__u8 next_tx_seq;
@@ -375,8 +376,6 @@ struct l2cap_pinfo {
__u8 force_reliable;
__u8 flushable;
- __u8 conf_state;
-
__u8 tx_win;
__u8 max_tx;
__u16 retrans_timeout;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 9a60ec0..a3aa26b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -236,8 +236,8 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
} else
sk->sk_state_change(sk);
- if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_OUTPUT_DONE &&
- l2cap_pi(sk)->conf_state & L2CAP_CONF_INPUT_DONE))
+ if (!(chan->conf_state & L2CAP_CONF_OUTPUT_DONE &&
+ chan->conf_state & L2CAP_CONF_INPUT_DONE))
goto free;
skb_queue_purge(&chan->tx_q);
@@ -411,9 +411,9 @@ static inline void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, u16 control)
l2cap_send_sframe(chan, control);
}
-static inline int __l2cap_no_conn_pending(struct sock *sk)
+static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
{
- return !(l2cap_pi(sk)->conf_state & L2CAP_CONF_CONNECT_PEND);
+ return !(chan->conf_state & L2CAP_CONF_CONNECT_PEND);
}
static void l2cap_do_start(struct l2cap_chan *chan)
@@ -425,13 +425,13 @@ static void l2cap_do_start(struct l2cap_chan *chan)
if (!(conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE))
return;
- if (l2cap_check_security(sk) && __l2cap_no_conn_pending(sk)) {
+ if (l2cap_check_security(sk) && __l2cap_no_conn_pending(chan)) {
struct l2cap_conn_req req;
req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
chan->ident = l2cap_get_ident(conn);
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
+ chan->conf_state |= L2CAP_CONF_CONNECT_PEND;
l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_REQ,
sizeof(req), &req);
@@ -516,14 +516,14 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
struct l2cap_conn_req req;
if (!l2cap_check_security(sk) ||
- !__l2cap_no_conn_pending(sk)) {
+ !__l2cap_no_conn_pending(chan)) {
bh_unlock_sock(sk);
continue;
}
if (!l2cap_mode_supported(l2cap_pi(sk)->mode,
conn->feat_mask)
- && l2cap_pi(sk)->conf_state &
+ && chan->conf_state &
L2CAP_CONF_STATE2_DEVICE) {
/* __l2cap_sock_close() calls list_del(chan)
* so release the lock */
@@ -538,7 +538,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
req.psm = l2cap_pi(sk)->psm;
chan->ident = l2cap_get_ident(conn);
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
+ chan->conf_state |= L2CAP_CONF_CONNECT_PEND;
l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_REQ,
sizeof(req), &req);
@@ -569,13 +569,13 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
sizeof(rsp), &rsp);
- if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT ||
+ if (chan->conf_state & L2CAP_CONF_REQ_SENT ||
rsp.result != L2CAP_CR_SUCCESS) {
bh_unlock_sock(sk);
continue;
}
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
+ chan->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
l2cap_build_conf_req(chan, buf), buf);
chan->num_conf_req++;
@@ -1381,10 +1381,11 @@ int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t le
static void l2cap_chan_ready(struct sock *sk)
{
struct sock *parent = bt_sk(sk)->parent;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
BT_DBG("sk %p, parent %p", sk, parent);
- l2cap_pi(sk)->conf_state = 0;
+ chan->conf_state = 0;
l2cap_sock_clear_timer(sk);
if (!parent) {
@@ -1618,7 +1619,7 @@ static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data)
switch (pi->mode) {
case L2CAP_MODE_STREAMING:
case L2CAP_MODE_ERTM:
- if (pi->conf_state & L2CAP_CONF_STATE2_DEVICE)
+ if (chan->conf_state & L2CAP_CONF_STATE2_DEVICE)
break;
/* fall through */
@@ -1665,7 +1666,7 @@ done:
break;
if (pi->fcs == L2CAP_FCS_NONE ||
- pi->conf_state & L2CAP_CONF_NO_FCS_RECV) {
+ chan->conf_state & L2CAP_CONF_NO_FCS_RECV) {
pi->fcs = L2CAP_FCS_NONE;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, pi->fcs);
}
@@ -1688,7 +1689,7 @@ done:
break;
if (pi->fcs == L2CAP_FCS_NONE ||
- pi->conf_state & L2CAP_CONF_NO_FCS_RECV) {
+ chan->conf_state & L2CAP_CONF_NO_FCS_RECV) {
pi->fcs = L2CAP_FCS_NONE;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, pi->fcs);
}
@@ -1741,7 +1742,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
case L2CAP_CONF_FCS:
if (val == L2CAP_FCS_NONE)
- pi->conf_state |= L2CAP_CONF_NO_FCS_RECV;
+ chan->conf_state |= L2CAP_CONF_NO_FCS_RECV;
break;
@@ -1761,7 +1762,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
switch (pi->mode) {
case L2CAP_MODE_STREAMING:
case L2CAP_MODE_ERTM:
- if (!(pi->conf_state & L2CAP_CONF_STATE2_DEVICE)) {
+ if (!(chan->conf_state & L2CAP_CONF_STATE2_DEVICE)) {
pi->mode = l2cap_select_mode(rfc.mode,
pi->conn->feat_mask);
break;
@@ -1794,14 +1795,14 @@ done:
result = L2CAP_CONF_UNACCEPT;
else {
pi->omtu = mtu;
- pi->conf_state |= L2CAP_CONF_MTU_DONE;
+ chan->conf_state |= L2CAP_CONF_MTU_DONE;
}
l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->omtu);
switch (rfc.mode) {
case L2CAP_MODE_BASIC:
pi->fcs = L2CAP_FCS_NONE;
- pi->conf_state |= L2CAP_CONF_MODE_DONE;
+ chan->conf_state |= L2CAP_CONF_MODE_DONE;
break;
case L2CAP_MODE_ERTM:
@@ -1818,7 +1819,7 @@ done:
rfc.monitor_timeout =
le16_to_cpu(L2CAP_DEFAULT_MONITOR_TO);
- pi->conf_state |= L2CAP_CONF_MODE_DONE;
+ chan->conf_state |= L2CAP_CONF_MODE_DONE;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
sizeof(rfc), (unsigned long) &rfc);
@@ -1831,7 +1832,7 @@ done:
chan->remote_mps = le16_to_cpu(rfc.max_pdu_size);
- pi->conf_state |= L2CAP_CONF_MODE_DONE;
+ chan->conf_state |= L2CAP_CONF_MODE_DONE;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
sizeof(rfc), (unsigned long) &rfc);
@@ -1846,7 +1847,7 @@ done:
}
if (result == L2CAP_CONF_SUCCESS)
- pi->conf_state |= L2CAP_CONF_OUTPUT_DONE;
+ chan->conf_state |= L2CAP_CONF_OUTPUT_DONE;
}
rsp->scid = cpu_to_le16(pi->dcid);
rsp->result = cpu_to_le16(result);
@@ -1855,8 +1856,9 @@ done:
return ptr - data;
}
-static int l2cap_parse_conf_rsp(struct sock *sk, void *rsp, int len, void *data, u16 *result)
+static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, void *data, u16 *result)
{
+ struct sock *sk = chan->sk;
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct l2cap_conf_req *req = data;
void *ptr = req->data;
@@ -1889,7 +1891,7 @@ static int l2cap_parse_conf_rsp(struct sock *sk, void *rsp, int len, void *data,
if (olen == sizeof(rfc))
memcpy(&rfc, (void *)val, olen);
- if ((pi->conf_state & L2CAP_CONF_STATE2_DEVICE) &&
+ if ((chan->conf_state & L2CAP_CONF_STATE2_DEVICE) &&
rfc.mode != pi->mode)
return -ECONNREFUSED;
@@ -1954,10 +1956,10 @@ void __l2cap_connect_rsp_defer(struct sock *sk)
l2cap_send_cmd(conn, chan->ident,
L2CAP_CONN_RSP, sizeof(rsp), &rsp);
- if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT)
+ if (chan->conf_state & L2CAP_CONF_REQ_SENT)
return;
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
+ chan->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
l2cap_build_conf_req(chan, buf), buf);
chan->num_conf_req++;
@@ -2145,10 +2147,10 @@ sendresp:
L2CAP_INFO_REQ, sizeof(info), &info);
}
- if (chan && !(l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) &&
+ if (chan && !(chan->conf_state & L2CAP_CONF_REQ_SENT) &&
result == L2CAP_CR_SUCCESS) {
u8 buf[128];
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
+ chan->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
l2cap_build_conf_req(chan, buf), buf);
chan->num_conf_req++;
@@ -2189,12 +2191,12 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
sk->sk_state = BT_CONFIG;
chan->ident = 0;
l2cap_pi(sk)->dcid = dcid;
- l2cap_pi(sk)->conf_state &= ~L2CAP_CONF_CONNECT_PEND;
+ chan->conf_state &= ~L2CAP_CONF_CONNECT_PEND;
- if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT)
+ if (chan->conf_state & L2CAP_CONF_REQ_SENT)
break;
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
+ chan->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
l2cap_build_conf_req(chan, req), req);
@@ -2202,7 +2204,7 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
break;
case L2CAP_CR_PEND:
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
+ chan->conf_state |= L2CAP_CONF_CONNECT_PEND;
break;
default:
@@ -2229,7 +2231,7 @@ static inline void set_default_fcs(struct l2cap_pinfo *pi)
*/
if (pi->mode != L2CAP_MODE_ERTM && pi->mode != L2CAP_MODE_STREAMING)
pi->fcs = L2CAP_FCS_NONE;
- else if (!(pi->conf_state & L2CAP_CONF_NO_FCS_RECV))
+ else if (!(pi->chan->conf_state & L2CAP_CONF_NO_FCS_RECV))
pi->fcs = L2CAP_FCS_CRC16;
}
@@ -2296,10 +2298,10 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
/* Reset config buffer. */
chan->conf_len = 0;
- if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_OUTPUT_DONE))
+ if (!(chan->conf_state & L2CAP_CONF_OUTPUT_DONE))
goto unlock;
- if (l2cap_pi(sk)->conf_state & L2CAP_CONF_INPUT_DONE) {
+ if (chan->conf_state & L2CAP_CONF_INPUT_DONE) {
set_default_fcs(l2cap_pi(sk));
sk->sk_state = BT_CONNECTED;
@@ -2314,9 +2316,9 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
goto unlock;
}
- if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT)) {
+ if (!(chan->conf_state & L2CAP_CONF_REQ_SENT)) {
u8 buf[64];
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
+ chan->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
l2cap_build_conf_req(chan, buf), buf);
chan->num_conf_req++;
@@ -2364,8 +2366,8 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
/* throw out any old stored conf requests */
result = L2CAP_CONF_SUCCESS;
- len = l2cap_parse_conf_rsp(sk, rsp->data,
- len, req, &result);
+ len = l2cap_parse_conf_rsp(chan, rsp->data, len,
+ req, &result);
if (len < 0) {
l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
@@ -2389,9 +2391,9 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
if (flags & 0x01)
goto done;
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_INPUT_DONE;
+ chan->conf_state |= L2CAP_CONF_INPUT_DONE;
- if (l2cap_pi(sk)->conf_state & L2CAP_CONF_OUTPUT_DONE) {
+ if (chan->conf_state & L2CAP_CONF_OUTPUT_DONE) {
set_default_fcs(l2cap_pi(sk));
sk->sk_state = BT_CONNECTED;
@@ -3898,7 +3900,7 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
bh_lock_sock(sk);
- if (l2cap_pi(sk)->conf_state & L2CAP_CONF_CONNECT_PEND) {
+ if (chan->conf_state & L2CAP_CONF_CONNECT_PEND) {
bh_unlock_sock(sk);
continue;
}
@@ -3917,7 +3919,7 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
req.psm = l2cap_pi(sk)->psm;
chan->ident = l2cap_get_ident(conn);
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
+ chan->conf_state |= L2CAP_CONF_CONNECT_PEND;
l2cap_send_cmd(conn, chan->ident,
L2CAP_CONN_REQ, sizeof(req), &req);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index e372457..a29782a 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -528,6 +528,7 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
struct l2cap_options opts;
int len, err = 0;
u32 opt;
@@ -565,7 +566,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
l2cap_pi(sk)->mode = opts.mode;
switch (l2cap_pi(sk)->mode) {
case L2CAP_MODE_BASIC:
- l2cap_pi(sk)->conf_state &= ~L2CAP_CONF_STATE2_DEVICE;
+ chan->conf_state &= ~L2CAP_CONF_STATE2_DEVICE;
break;
case L2CAP_MODE_ERTM:
case L2CAP_MODE_STREAMING:
@@ -979,16 +980,19 @@ static void l2cap_sock_destruct(struct sock *sk)
void l2cap_sock_init(struct sock *sk, struct sock *parent)
{
struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct l2cap_chan *chan = pi->chan;
BT_DBG("sk %p", sk);
if (parent) {
+ struct l2cap_chan *pchan = l2cap_pi(parent)->chan;
+
sk->sk_type = parent->sk_type;
bt_sk(sk)->defer_setup = bt_sk(parent)->defer_setup;
pi->imtu = l2cap_pi(parent)->imtu;
pi->omtu = l2cap_pi(parent)->omtu;
- pi->conf_state = l2cap_pi(parent)->conf_state;
+ chan->conf_state = pchan->conf_state;
pi->mode = l2cap_pi(parent)->mode;
pi->fcs = l2cap_pi(parent)->fcs;
pi->max_tx = l2cap_pi(parent)->max_tx;
@@ -1002,7 +1006,7 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent)
pi->omtu = 0;
if (!disable_ertm && sk->sk_type == SOCK_STREAM) {
pi->mode = L2CAP_MODE_ERTM;
- pi->conf_state |= L2CAP_CONF_STATE2_DEVICE;
+ chan->conf_state |= L2CAP_CONF_STATE2_DEVICE;
} else {
pi->mode = L2CAP_MODE_BASIC;
}
--
1.7.5.rc1
--
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