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authorSteve French <sfrench@us.ibm.com>2007-03-23 01:45:08 +0100
committerSteve French <sfrench@us.ibm.com>2007-03-23 01:45:08 +0100
commit066fcb06d3e27c258bc229bb688ced2b16daa6c2 (patch)
tree9e2dd78b4821f57f5727ec8ea05e3d95d9819ca6 /fs/cifs/inode.c
parent[CIFS] Do not negotiate new POSIX_PATH_OPERATIONS_CAP yet (diff)
downloadlinux-066fcb06d3e27c258bc229bb688ced2b16daa6c2.tar.xz
linux-066fcb06d3e27c258bc229bb688ced2b16daa6c2.zip
[CIFS] Allow reset of file to ATTR_NORMAL when archive bit not set
When a file had a dos attribute of 0x1 (readonly - but dos attribute of archive was not set) - doing chmod 0777 or equivalent would try to set a dos attribute of 0 (which some servers ignore) rather than ATTR_NORMAL (0x20) which most servers accept. Does not affect servers which support the CIFS Unix Extensions. Acked-by: Prasad Potluri <pvp@us.ibm.com> Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/inode.c')
-rw-r--r--fs/cifs/inode.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index e75a844accd7..f414526e476a 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1196,6 +1196,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
struct cifsFileInfo *open_file = NULL;
FILE_BASIC_INFO time_buf;
int set_time = FALSE;
+ int set_dosattr = FALSE;
__u64 mode = 0xFFFFFFFFFFFFFFFFULL;
__u64 uid = 0xFFFFFFFFFFFFFFFFULL;
__u64 gid = 0xFFFFFFFFFFFFFFFFULL;
@@ -1332,15 +1333,23 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
else if (attrs->ia_valid & ATTR_MODE) {
rc = 0;
if ((mode & S_IWUGO) == 0) /* not writeable */ {
- if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0)
+ if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
+ set_dosattr = TRUE;
time_buf.Attributes =
cpu_to_le32(cifsInode->cifsAttrs |
ATTR_READONLY);
+ }
} else if ((mode & S_IWUGO) == S_IWUGO) {
- if (cifsInode->cifsAttrs & ATTR_READONLY)
+ if (cifsInode->cifsAttrs & ATTR_READONLY) {
+ set_dosattr = TRUE;
time_buf.Attributes =
cpu_to_le32(cifsInode->cifsAttrs &
(~ATTR_READONLY));
+ /* Windows ignores set to zero */
+ if(time_buf.Attributes == 0)
+ time_buf.Attributes |=
+ cpu_to_le32(ATTR_NORMAL);
+ }
}
/* BB to be implemented -
via Windows security descriptors or streams */
@@ -1378,7 +1387,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
} else
time_buf.ChangeTime = 0;
- if (set_time || time_buf.Attributes) {
+ if (set_time || set_dosattr) {
time_buf.CreationTime = 0; /* do not change */
/* In the future we should experiment - try setting timestamps
via Handle (SetFileInfo) instead of by path */