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-rw-r--r--fs/cifs/cifsproto.h3
-rw-r--r--fs/cifs/connect.c26
-rw-r--r--fs/cifs/dir.c28
-rw-r--r--fs/cifs/inode.c65
-rw-r--r--fs/cifs/link.c42
5 files changed, 37 insertions, 127 deletions
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 08248e85b78..845b18e1abe 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -150,9 +150,6 @@ extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
unsigned int *number_of_UNC_in_array,
const struct nls_table *nls_codepage, int remap);
-extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
- const char *old_path,
- const struct nls_table *nls_codepage, int remap);
extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
const char *old_path,
const struct nls_table *nls_codepage,
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 7c2e5ea0330..d5747e30f1c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1419,27 +1419,6 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName)
}
int
-connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
- const char *old_path, const struct nls_table *nls_codepage,
- int remap)
-{
- struct dfs_info3_param *referrals = NULL;
- unsigned int num_referrals;
- int rc = 0;
-
- rc = get_dfs_path(xid, pSesInfo, old_path, nls_codepage,
- &num_referrals, &referrals, remap);
-
- /* BB Add in code to: if valid refrl, if not ip address contact
- the helper that resolves tcp names, mount to it, try to
- tcon to it unmount it if fail */
-
- kfree(referrals);
-
- return rc;
-}
-
-int
get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path,
const struct nls_table *nls_codepage, unsigned int *pnum_referrals,
struct dfs_info3_param **preferrals, int remap)
@@ -2161,10 +2140,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if ((strchr(volume_info.UNC + 3, '\\') == NULL)
&& (strchr(volume_info.UNC + 3, '/') ==
NULL)) {
- rc = connect_to_dfs_path(xid, pSesInfo,
+/* rc = connect_to_dfs_path(xid, pSesInfo,
"", cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ CIFS_MOUNT_MAP_SPECIAL_CHR);*/
+ cFYI(1, ("DFS root not supported"));
rc = -ENODEV;
goto out;
} else {
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index e4e0078a052..05afe33ea64 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -49,18 +49,25 @@ build_path_from_dentry(struct dentry *direntry)
struct dentry *temp;
int namelen;
int pplen;
+ int dfsplen;
char *full_path;
char dirsep;
+ struct cifs_sb_info *cifs_sb;
if (direntry == NULL)
return NULL; /* not much we can do if dentry is freed and
we need to reopen the file after it was closed implicitly
when the server crashed */
- dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
- pplen = CIFS_SB(direntry->d_sb)->prepathlen;
+ cifs_sb = CIFS_SB(direntry->d_sb);
+ dirsep = CIFS_DIR_SEP(cifs_sb);
+ pplen = cifs_sb->prepathlen;
+ if (cifs_sb->tcon && (cifs_sb->tcon->Flags & SMB_SHARE_IS_IN_DFS))
+ dfsplen = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE + 1);
+ else
+ dfsplen = 0;
cifs_bp_rename_retry:
- namelen = pplen;
+ namelen = pplen + dfsplen;
for (temp = direntry; !IS_ROOT(temp);) {
namelen += (1 + temp->d_name.len);
temp = temp->d_parent;
@@ -91,7 +98,7 @@ cifs_bp_rename_retry:
return NULL;
}
}
- if (namelen != pplen) {
+ if (namelen != pplen + dfsplen) {
cERROR(1,
("did not end path lookup where expected namelen is %d",
namelen));
@@ -107,7 +114,18 @@ cifs_bp_rename_retry:
since the '\' is a valid posix character so we can not switch
those safely to '/' if any are found in the middle of the prepath */
/* BB test paths to Windows with '/' in the midst of prepath */
- strncpy(full_path, CIFS_SB(direntry->d_sb)->prepath, pplen);
+
+ if (dfsplen) {
+ strncpy(full_path, cifs_sb->tcon->treeName, dfsplen);
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
+ int i;
+ for (i = 0; i < dfsplen; i++) {
+ if (full_path[i] == '\\')
+ full_path[i] = '/';
+ }
+ }
+ }
+ strncpy(full_path + dfsplen, CIFS_SB(direntry->d_sb)->prepath, pplen);
return full_path;
}
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 2d53b436d51..9d9b56a9c08 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -161,52 +161,18 @@ static void cifs_unix_info_to_inode(struct inode *inode,
spin_unlock(&inode->i_lock);
}
-static const unsigned char *cifs_get_search_path(struct cifs_sb_info *cifs_sb,
- const char *search_path)
-{
- int tree_len;
- int path_len;
- int i;
- char *tmp_path;
- struct cifsTconInfo *pTcon = cifs_sb->tcon;
-
- if (!(pTcon->Flags & SMB_SHARE_IS_IN_DFS))
- return search_path;
-
- /* use full path name for working with DFS */
- tree_len = strnlen(pTcon->treeName, MAX_TREE_SIZE + 1);
- path_len = strnlen(search_path, MAX_PATHCONF);
-
- tmp_path = kmalloc(tree_len+path_len+1, GFP_KERNEL);
- if (tmp_path == NULL)
- return search_path;
-
- strncpy(tmp_path, pTcon->treeName, tree_len);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
- for (i = 0; i < tree_len; i++) {
- if (tmp_path[i] == '\\')
- tmp_path[i] = '/';
- }
- strncpy(tmp_path+tree_len, search_path, path_len);
- tmp_path[tree_len+path_len] = 0;
- return tmp_path;
-}
-
int cifs_get_inode_info_unix(struct inode **pinode,
- const unsigned char *search_path, struct super_block *sb, int xid)
+ const unsigned char *full_path, struct super_block *sb, int xid)
{
int rc = 0;
FILE_UNIX_BASIC_INFO findData;
struct cifsTconInfo *pTcon;
struct inode *inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
- const unsigned char *full_path;
bool is_dfs_referral = false;
pTcon = cifs_sb->tcon;
- cFYI(1, ("Getting info on %s", search_path));
-
- full_path = cifs_get_search_path(cifs_sb, search_path);
+ cFYI(1, ("Getting info on %s", full_path));
try_again_CIFSSMBUnixQPathInfo:
/* could have done a find first instead but this returns more info */
@@ -218,10 +184,6 @@ try_again_CIFSSMBUnixQPathInfo:
if (rc) {
if (rc == -EREMOTE && !is_dfs_referral) {
is_dfs_referral = true;
- if (full_path != search_path) {
- kfree(full_path);
- full_path = search_path;
- }
goto try_again_CIFSSMBUnixQPathInfo;
}
goto cgiiu_exit;
@@ -271,8 +233,6 @@ try_again_CIFSSMBUnixQPathInfo:
cifs_set_ops(inode, is_dfs_referral);
}
cgiiu_exit:
- if (full_path != search_path)
- kfree(full_path);
return rc;
}
@@ -380,20 +340,19 @@ static int get_sfu_mode(struct inode *inode,
}
int cifs_get_inode_info(struct inode **pinode,
- const unsigned char *search_path, FILE_ALL_INFO *pfindData,
+ const unsigned char *full_path, FILE_ALL_INFO *pfindData,
struct super_block *sb, int xid, const __u16 *pfid)
{
int rc = 0;
struct cifsTconInfo *pTcon;
struct inode *inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
- const unsigned char *full_path = NULL;
char *buf = NULL;
bool adjustTZ = false;
bool is_dfs_referral = false;
pTcon = cifs_sb->tcon;
- cFYI(1, ("Getting info on %s", search_path));
+ cFYI(1, ("Getting info on %s", full_path));
if ((pfindData == NULL) && (*pinode != NULL)) {
if (CIFS_I(*pinode)->clientCanCacheRead) {
@@ -409,8 +368,6 @@ int cifs_get_inode_info(struct inode **pinode,
return -ENOMEM;
pfindData = (FILE_ALL_INFO *)buf;
- full_path = cifs_get_search_path(cifs_sb, search_path);
-
try_again_CIFSSMBQPathInfo:
/* could do find first instead but this returns more info */
rc = CIFSSMBQPathInfo(xid, pTcon, full_path, pfindData,
@@ -432,10 +389,6 @@ try_again_CIFSSMBQPathInfo:
if (rc) {
if (rc == -EREMOTE && !is_dfs_referral) {
is_dfs_referral = true;
- if (full_path != search_path) {
- kfree(full_path);
- full_path = search_path;
- }
goto try_again_CIFSSMBQPathInfo;
}
goto cgii_exit;
@@ -470,7 +423,7 @@ try_again_CIFSSMBQPathInfo:
__u64 inode_num;
rc1 = CIFSGetSrvInodeNumber(xid, pTcon,
- search_path, &inode_num,
+ full_path, &inode_num,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
@@ -539,7 +492,7 @@ try_again_CIFSSMBQPathInfo:
(cifsInfo->cifsAttrs & ATTR_SYSTEM)) {
if (decode_sfu_inode(inode,
le64_to_cpu(pfindData->EndOfFile),
- search_path,
+ full_path,
cifs_sb, xid))
cFYI(1, ("Unrecognized sfu inode type"));
@@ -582,12 +535,12 @@ try_again_CIFSSMBQPathInfo:
/* fill in 0777 bits from ACL */
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
cFYI(1, ("Getting mode bits from ACL"));
- acl_to_uid_mode(inode, search_path, pfid);
+ acl_to_uid_mode(inode, full_path, pfid);
}
#endif
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
/* fill in remaining high mode bits e.g. SUID, VTX */
- get_sfu_mode(inode, search_path, cifs_sb, xid);
+ get_sfu_mode(inode, full_path, cifs_sb, xid);
} else if (atomic_read(&cifsInfo->inUse) == 0) {
inode->i_uid = cifs_sb->mnt_uid;
inode->i_gid = cifs_sb->mnt_gid;
@@ -599,8 +552,6 @@ try_again_CIFSSMBQPathInfo:
cifs_set_ops(inode, is_dfs_referral);
}
cgii_exit:
- if (full_path != search_path)
- kfree(full_path);
kfree(buf);
return rc;
}
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 1c2c3ce5020..316f9830ce3 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -295,45 +295,9 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
cFYI(1, ("Error closing junction point "
"(open for ioctl)"));
}
- /* BB unwind this long, nested function, or remove BB */
- if (rc == -EIO) {
- /* Query if DFS Junction */
- unsigned int num_referrals = 0;
- struct dfs_info3_param *refs = NULL;
- tmp_path =
- kmalloc(MAX_TREE_SIZE + MAX_PATHCONF + 1,
- GFP_KERNEL);
- if (tmp_path) {
- strncpy(tmp_path, pTcon->treeName,
- MAX_TREE_SIZE);
- strncat(tmp_path, full_path,
- MAX_PATHCONF);
- rc = get_dfs_path(xid, pTcon->ses,
- tmp_path,
- cifs_sb->local_nls,
- &num_referrals, &refs,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- cFYI(1, ("Get DFS for %s rc = %d ",
- tmp_path, rc));
- if ((num_referrals == 0) && (rc == 0))
- rc = -EACCES;
- else {
- cFYI(1, ("num referral: %d",
- num_referrals));
- if (refs && refs->path_name) {
- strncpy(tmpbuffer,
- refs->path_name,
- len-1);
- }
- }
- kfree(refs);
- kfree(tmp_path);
-}
- /* BB add code like else decode referrals
- then memcpy to tmpbuffer and free referrals
- string array BB */
- }
+ /* If it is a DFS junction earlier we would have gotten
+ PATH_NOT_COVERED returned from server so we do
+ not need to request the DFS info here */
}
}
/* BB Anything else to do to handle recursive links? */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 01:36:23 +0000