Signed-off-by: Pavel Shilovsky <pshilovsky@xxxxxxxxx>
---
fs/cifs/cifsglob.h | 3 +++
fs/cifs/connect.c | 31 ++++++-------------------------
fs/cifs/smb1ops.c | 25 +++++++++++++++++++++++++
3 files changed, 34 insertions(+), 25 deletions(-)
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 4f82900..7f5cb14 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -215,6 +215,9 @@ struct smb_version_operations {
const struct nls_table *, int);
/* informational QFS call */
void (*qfs_tcon)(const int, struct cifs_tcon *);
+ /* check if a path is accessible or not */
+ int (*is_path_accessible)(const int, struct cifs_tcon *,
+ struct cifs_sb_info *, const char *);
};
struct smb_version_values {
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 3f6b66a..a1f301f 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3385,30 +3385,6 @@ cifs_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *pvolume_info)
return rsize;
}
-static int
-is_path_accessible(int xid, struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb, const char *full_path)
-{
- int rc;
- FILE_ALL_INFO *pfile_info;
-
- pfile_info = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
- if (pfile_info == NULL)
- return -ENOMEM;
-
- rc = CIFSSMBQPathInfo(xid, tcon, full_path, pfile_info,
- 0 /* not legacy */, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
-
- if (rc == -EOPNOTSUPP || rc == -EINVAL)
- rc = SMBQueryInformation(xid, tcon, full_path, pfile_info,
- cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- kfree(pfile_info);
- return rc;
-}
-
static void
cleanup_volume_info_contents(struct smb_vol *volume_info)
{
@@ -3686,13 +3662,18 @@ remote_path_check:
/* check if a whole path is not remote */
if (!rc && tcon) {
+ if (!server->ops->is_path_accessible) {
+ rc = -ENOSYS;
+ goto mount_fail_check;
+ }
/* build_path_to_root works only when we have a valid tcon */
full_path = cifs_build_path_to_root(volume_info, cifs_sb, tcon);
if (full_path == NULL) {
rc = -ENOMEM;
goto mount_fail_check;
}
- rc = is_path_accessible(xid, tcon, cifs_sb, full_path);
+ rc = server->ops->is_path_accessible(xid, tcon, cifs_sb,
+ full_path);
if (rc != 0 && rc != -EREMOTE) {
kfree(full_path);
goto mount_fail_check;
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 00cae9e..554ecba 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -428,6 +428,30 @@ cifs_qfs_tcon(const int xid, struct cifs_tcon *tcon)
CIFSSMBQFSAttributeInfo(xid, tcon);
}
+int
+cifs_is_path_accessible(const int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, const char *full_path)
+{
+ int rc;
+ FILE_ALL_INFO *file_info;
+
+ file_info = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+ if (file_info == NULL)
+ return -ENOMEM;
+
+ rc = CIFSSMBQPathInfo(xid, tcon, full_path, file_info,
+ 0 /* not legacy */, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc == -EOPNOTSUPP || rc == -EINVAL)
+ rc = SMBQueryInformation(xid, tcon, full_path, file_info,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ kfree(file_info);
+ return rc;
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
@@ -454,6 +478,7 @@ struct smb_version_operations smb1_operations = {
.tree_disconnect = CIFSSMBTDis,
.get_dfs_refer = cifs_get_dfs_refer,
.qfs_tcon = cifs_qfs_tcon,
+ .is_path_accessible = cifs_is_path_accessible,
};
struct smb_version_values smb1_values = {
--
1.7.1
--
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