Since both CIFS and SMB2 use ses->capabilities (server->capabilities)
field but flags are different we should make such checks protocol
independent.
Signed-off-by: Pavel Shilovsky <pshilovsky@xxxxxxxxx>
---
fs/cifs/cifsglob.h | 10 ++++++++++
fs/cifs/connect.c | 6 +++---
fs/cifs/dir.c | 3 +--
fs/cifs/file.c | 33 ++++++++++++++++-----------------
fs/cifs/inode.c | 26 ++++++++++++--------------
fs/cifs/link.c | 6 +++---
fs/cifs/readdir.c | 16 ++++++++--------
fs/cifs/smb1ops.c | 3 +++
fs/cifs/smb2ops.c | 3 +++
fs/cifs/smb2pdu.c | 2 ++
fs/cifs/smb2pdu.h | 3 +++
11 files changed, 64 insertions(+), 47 deletions(-)
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 12b1176..5695693 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -258,6 +258,9 @@ struct smb_version_values {
size_t max_header_size;
size_t read_rsp_size;
__le16 lock_cmd;
+ int cap_unix;
+ int cap_nt_find;
+ int cap_large_files;
};
#define HEADER_SIZE(server) (server->vals->header_size)
@@ -554,6 +557,13 @@ struct cifs_ses {
which do not negotiate NTLM or POSIX dialects, but instead
negotiate one of the older LANMAN dialects */
#define CIFS_SES_LANMAN 8
+
+static inline bool
+cap_unix(struct cifs_ses *ses)
+{
+ return ses->server->vals->cap_unix & ses->capabilities;
+}
+
/*
* there is one of these for each connection to a resource on a particular
* session
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b1ab89a..99d50bf 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3633,7 +3633,7 @@ try_mount_again:
}
/* tell server which Unix caps we support */
- if (tcon->ses->capabilities & CAP_UNIX) {
+ if (cap_unix(tcon->ses)) {
/* reset of caps checks mount to see if unix extensions
disabled for just this mount */
reset_cifs_unix_caps(xid, tcon, cifs_sb, volume_info);
@@ -3992,7 +3992,7 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
ses->flags = 0;
ses->capabilities = server->capabilities;
if (linuxExtEnabled == 0)
- ses->capabilities &= (~CAP_UNIX);
+ ses->capabilities &= (~server->vals->cap_unix);
cFYI(1, "Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
server->sec_mode, server->capabilities, server->timeAdj);
@@ -4099,7 +4099,7 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, uid_t fsuid)
goto out;
}
- if (ses->capabilities & CAP_UNIX)
+ if (cap_unix(ses))
reset_cifs_unix_caps(0, tcon, NULL, vol_info);
out:
kfree(vol_info->username);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 2caba0b..cbe709a 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -182,8 +182,7 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
goto out;
}
- if (tcon->unix_ext && (tcon->ses->capabilities & CAP_UNIX) &&
- !tcon->broken_posix_open &&
+ if (tcon->unix_ext && cap_unix(tcon->ses) && !tcon->broken_posix_open &&
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(tcon->fsUnixInfo.Capability))) {
rc = cifs_posix_open(full_path, &newinode,
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index ea1bb66..1712794 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -385,9 +385,8 @@ int cifs_open(struct inode *inode, struct file *file)
oplock = 0;
if (!tcon->broken_posix_open && tcon->unix_ext &&
- (tcon->ses->capabilities & CAP_UNIX) &&
- (CIFS_UNIX_POSIX_PATH_OPS_CAP &
- le64_to_cpu(tcon->fsUnixInfo.Capability))) {
+ cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP &
+ le64_to_cpu(tcon->fsUnixInfo.Capability))) {
/* can not refresh inode info since size could be stale */
rc = cifs_posix_open(full_path, &inode, inode->i_sb,
cifs_sb->mnt_file_mode /* ignored */,
@@ -509,10 +508,9 @@ static int cifs_reopen_file(struct cifsFileInfo *pCifsFile, bool can_flush)
else
oplock = 0;
- if (tcon->unix_ext && (tcon->ses->capabilities & CAP_UNIX) &&
+ if (tcon->unix_ext && cap_unix(tcon->ses) &&
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
- le64_to_cpu(tcon->fsUnixInfo.Capability))) {
-
+ le64_to_cpu(tcon->fsUnixInfo.Capability))) {
/*
* O_CREAT, O_EXCL and O_TRUNC already had their effect on the
* original open. Must mask them off for a reopen.
@@ -1073,7 +1071,7 @@ cifs_push_locks(struct cifsFileInfo *cfile)
struct cifs_sb_info *cifs_sb = CIFS_SB(cfile->dentry->d_sb);
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
- if ((tcon->ses->capabilities & CAP_UNIX) &&
+ if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0))
return cifs_push_posix_locks(cfile);
@@ -1421,7 +1419,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *flock)
netfid = cfile->netfid;
cinode = CIFS_I(file->f_path.dentry->d_inode);
- if ((tcon->ses->capabilities & CAP_UNIX) &&
+ if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0))
posix_lck = true;
@@ -2747,7 +2745,7 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
unsigned int current_read_size;
unsigned int rsize;
struct cifs_sb_info *cifs_sb;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *tcon;
unsigned int xid;
char *current_offset;
struct cifsFileInfo *open_file;
@@ -2767,7 +2765,7 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
return rc;
}
open_file = file->private_data;
- pTcon = tlink_tcon(open_file->tlink);
+ tcon = tlink_tcon(open_file->tlink);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
pid = open_file->pid;
@@ -2781,11 +2779,12 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
read_size > total_read;
total_read += bytes_read, current_offset += bytes_read) {
current_read_size = min_t(uint, read_size - total_read, rsize);
-
- /* For windows me and 9x we do not want to request more
- than it negotiated since it will refuse the read then */
- if ((pTcon->ses) &&
- !(pTcon->ses->capabilities & CAP_LARGE_FILES)) {
+ /*
+ * For windows me and 9x we do not want to request more than it
+ * negotiated since it will refuse the read then.
+ */
+ if ((tcon->ses) && !(tcon->ses->capabilities |
+ tcon->ses->server->vals->cap_large_files)) {
current_read_size = min_t(uint, current_read_size,
CIFSMaxBufSize);
}
@@ -2798,7 +2797,7 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
}
io_parms.netfid = open_file->netfid;
io_parms.pid = pid;
- io_parms.tcon = pTcon;
+ io_parms.tcon = tcon;
io_parms.offset = *poffset;
io_parms.length = current_read_size;
rc = CIFSSMBRead(xid, &io_parms, &bytes_read,
@@ -2812,7 +2811,7 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
return rc;
}
} else {
- cifs_stats_bytes_read(pTcon, total_read);
+ cifs_stats_bytes_read(tcon, total_read);
*poffset += bytes_read;
}
}
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index def1006..35cb6a3 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1149,9 +1149,8 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry)
goto unlink_out;
}
- if ((tcon->ses->capabilities & CAP_UNIX) &&
- (CIFS_UNIX_POSIX_PATH_OPS_CAP &
- le64_to_cpu(tcon->fsUnixInfo.Capability))) {
+ if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP &
+ le64_to_cpu(tcon->fsUnixInfo.Capability))) {
rc = CIFSPOSIXDelFile(xid, tcon, full_path,
SMB_POSIX_UNLINK_FILE_TARGET, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
@@ -1226,7 +1225,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
unsigned int xid;
struct cifs_sb_info *cifs_sb;
struct tcon_link *tlink;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *tcon;
char *full_path = NULL;
struct inode *newinode = NULL;
struct cifs_fattr fattr;
@@ -1237,7 +1236,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink))
return PTR_ERR(tlink);
- pTcon = tlink_tcon(tlink);
+ tcon = tlink_tcon(tlink);
xid = get_xid();
@@ -1247,9 +1246,8 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
goto mkdir_out;
}
- if ((pTcon->ses->capabilities & CAP_UNIX) &&
- (CIFS_UNIX_POSIX_PATH_OPS_CAP &
- le64_to_cpu(pTcon->fsUnixInfo.Capability))) {
+ if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP &
+ le64_to_cpu(tcon->fsUnixInfo.Capability))) {
u32 oplock = 0;
FILE_UNIX_BASIC_INFO *pInfo =
kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
@@ -1259,7 +1257,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
}
mode &= ~current_umask();
- rc = CIFSPOSIXCreate(xid, pTcon, SMB_O_DIRECTORY | SMB_O_CREAT,
+ rc = CIFSPOSIXCreate(xid, tcon, SMB_O_DIRECTORY | SMB_O_CREAT,
mode, NULL /* netfid */, pInfo, &oplock,
full_path, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
@@ -1303,14 +1301,14 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
}
mkdir_retry_old:
/* BB add setting the equivalent of mode via CreateX w/ACLs */
- rc = CIFSSMBMkDir(xid, pTcon, full_path, cifs_sb->local_nls,
+ rc = CIFSSMBMkDir(xid, tcon, full_path, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
if (rc) {
cFYI(1, "cifs_mkdir returned 0x%x", rc);
d_drop(direntry);
} else {
mkdir_get_info:
- if (pTcon->unix_ext)
+ if (tcon->unix_ext)
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb, xid);
else
@@ -1328,7 +1326,7 @@ mkdir_get_info:
if (inode->i_mode & S_ISGID)
mode |= S_ISGID;
- if (pTcon->unix_ext) {
+ if (tcon->unix_ext) {
struct cifs_unix_set_info_args args = {
.mode = mode,
.ctime = NO_CHANGE_64,
@@ -1346,7 +1344,7 @@ mkdir_get_info:
args.uid = NO_CHANGE_64;
args.gid = NO_CHANGE_64;
}
- CIFSSMBUnixSetPathInfo(xid, pTcon, full_path, &args,
+ CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
@@ -1361,7 +1359,7 @@ mkdir_get_info:
cifsInode = CIFS_I(newinode);
dosattrs = cifsInode->cifsAttrs|ATTR_READONLY;
pInfo.Attributes = cpu_to_le32(dosattrs);
- tmprc = CIFSSMBSetPathInfo(xid, pTcon,
+ tmprc = CIFSSMBSetPathInfo(xid, tcon,
full_path, &pInfo,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 77d781a..d08b76c 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -495,8 +495,8 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
* but there doesn't seem to be any harm in allowing the client to
* read them.
*/
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
- && !(tcon->ses->capabilities & CAP_UNIX)) {
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) &&
+ !cap_unix(tcon->ses)) {
rc = -EACCES;
goto out;
}
@@ -518,7 +518,7 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- if ((rc != 0) && (tcon->ses->capabilities & CAP_UNIX))
+ if ((rc != 0) && cap_unix(tcon->ses))
rc = CIFSSMBUnixQuerySymLink(xid, tcon, full_path, &target_path,
cifs_sb->local_nls);
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index da30d96..d87f826 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -228,7 +228,7 @@ static int initiate_cifs_search(const unsigned int xid, struct file *file)
struct cifsFileInfo *cifsFile;
struct cifs_sb_info *cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
struct tcon_link *tlink = NULL;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *tcon;
if (file->private_data == NULL) {
tlink = cifs_sb_tlink(cifs_sb);
@@ -242,10 +242,10 @@ static int initiate_cifs_search(const unsigned int xid, struct file *file)
}
file->private_data = cifsFile;
cifsFile->tlink = cifs_get_tlink(tlink);
- pTcon = tlink_tcon(tlink);
+ tcon = tlink_tcon(tlink);
} else {
cifsFile = file->private_data;
- pTcon = tlink_tcon(cifsFile->tlink);
+ tcon = tlink_tcon(cifsFile->tlink);
}
cifsFile->invalidHandle = true;
@@ -262,11 +262,11 @@ static int initiate_cifs_search(const unsigned int xid, struct file *file)
ffirst_retry:
/* test for Unix extensions */
/* but now check for them on the share/mount not on the SMB session */
-/* if (pTcon->ses->capabilities & CAP_UNIX) { */
- if (pTcon->unix_ext)
+ /* if (cap_unix(tcon->ses) { */
+ if (tcon->unix_ext)
cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX;
- else if ((pTcon->ses->capabilities &
- (CAP_NT_SMBS | CAP_NT_FIND)) == 0) {
+ else if ((tcon->ses->capabilities &
+ tcon->ses->server->vals->cap_nt_find) == 0) {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD;
} else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_ID_FULL_DIR_INFO;
@@ -278,7 +278,7 @@ ffirst_retry:
if (backup_cred(cifs_sb))
search_flags |= CIFS_SEARCH_BACKUP_SEARCH;
- rc = CIFSFindFirst(xid, pTcon, full_path, cifs_sb->local_nls,
+ rc = CIFSFindFirst(xid, tcon, full_path, cifs_sb->local_nls,
&cifsFile->netfid, search_flags, &cifsFile->srch_inf,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb));
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 5817409..c40356d 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -632,4 +632,7 @@ struct smb_version_values smb1_values = {
.max_header_size = MAX_CIFS_HDR_SIZE,
.read_rsp_size = sizeof(READ_RSP),
.lock_cmd = cpu_to_le16(SMB_COM_LOCKING_ANDX),
+ .cap_unix = CAP_UNIX,
+ .cap_nt_find = CAP_NT_SMBS | CAP_NT_FIND,
+ .cap_large_files = CAP_LARGE_FILES,
};
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 1018c5c..410cf92 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -325,4 +325,7 @@ struct smb_version_values smb21_values = {
.header_size = sizeof(struct smb2_hdr),
.max_header_size = MAX_SMB2_HDR_SIZE,
.lock_cmd = SMB2_LOCK,
+ .cap_unix = 0,
+ .cap_nt_find = SMB2_NT_FIND,
+ .cap_large_files = SMB2_LARGE_FILES,
};
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index e4eb1d3..62b3f17 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -428,6 +428,8 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
/* BB Do we need to validate the SecurityMode? */
server->sec_mode = le16_to_cpu(rsp->SecurityMode);
server->capabilities = le32_to_cpu(rsp->Capabilities);
+ /* Internal types */
+ server->capabilities |= SMB2_NT_FIND | SMB2_LARGE_FILES;
security_blob = smb2_get_data_area_len(&blob_offset, &blob_length,
&rsp->hdr);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 59aae60..f37a1b4 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -167,6 +167,9 @@ struct smb2_negotiate_req {
#define SMB2_GLOBAL_CAP_DFS 0x00000001
#define SMB2_GLOBAL_CAP_LEASING 0x00000002 /* Resp only New to SMB2.1 */
#define SMB2_GLOBAL_CAP_LARGE_MTU 0X00000004 /* Resp only New to SMB2.1 */
+/* Internal types */
+#define SMB2_NT_FIND 0x00100000
+#define SMB2_LARGE_FILES 0x00200000
struct smb2_negotiate_rsp {
struct smb2_hdr hdr;
--
1.7.1
--
To unsubscribe from this list: send the line "unsubscribe linux-cifs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
