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authorShirish Pargaonkar <shirishp@us.ibm.com>2007-10-30 04:45:14 +0000
committerSteve French <sfrench@us.ibm.com>2007-10-30 04:45:14 +0000
commite01b64001359034d04c695388870936ed3d1b56b (patch)
tree1c6c3e0267e7bd902d0c8c9293ceb844a6993bd2 /fs
parentb9c7a2bb1e57f571d3b0763bdce1ce15510a7b78 (diff)
downloadlinux-e01b64001359034d04c695388870936ed3d1b56b.tar.bz2
[CIFS] enable get mode from ACL when cifsacl mount option specified
Part 9 of ACL patch series. getting mode from ACL now works in some cases (and requires CIFS_EXPERIMENTAL config option). Signed-off-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/CHANGES4
-rw-r--r--fs/cifs/cifsacl.c28
2 files changed, 24 insertions, 8 deletions
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 3d419163c3d3..c65c9da863f3 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -12,7 +12,9 @@ leak that causes cifsd not to stop and rmmod to fail to cleanup
cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
bigendian architectures. Fix possible memory corruption when
EAGAIN returned on kern_recvmsg. Return better error if server
-requires packet signing but client has disabled it.
+requires packet signing but client has disabled it. When mounted
+with cifsacl mount option - mode bits are approximated based
+on the contents of the files ACL.
Version 1.50
------------
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index cad2da3a447d..629b96c21639 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -43,8 +43,8 @@ static struct cifs_wksid wksidarr[NUM_WK_SIDS] = {
/* security id for everyone */
-static const struct cifs_sid sid_everyone =
- {1, 1, {0, 0, 0, 0, 0, 0}, {} };
+static const struct cifs_sid sid_everyone = {
+ 1, 1, {0, 0, 0, 0, 0, 1}, {0} };
/* group users */
static const struct cifs_sid sid_user =
{1, 2 , {0, 0, 0, 0, 0, 5}, {} };
@@ -138,8 +138,6 @@ static void access_flags_to_mode(__u32 ace_flags, umode_t *pmode,
umode_t bits_to_set)
{
- *pmode &= ~bits_to_set;
-
if (ace_flags & GENERIC_ALL) {
*pmode |= (S_IRWXUGO & bits_to_set);
#ifdef CONFIG_CIFS_DEBUG2
@@ -147,11 +145,14 @@ static void access_flags_to_mode(__u32 ace_flags, umode_t *pmode,
#endif
return;
}
- if ((ace_flags & GENERIC_WRITE) || (ace_flags & FILE_WRITE_RIGHTS))
+ if ((ace_flags & GENERIC_WRITE) ||
+ ((ace_flags & FILE_WRITE_RIGHTS) == FILE_WRITE_RIGHTS))
*pmode |= (S_IWUGO & bits_to_set);
- if ((ace_flags & GENERIC_READ) || (ace_flags & FILE_READ_RIGHTS))
+ if ((ace_flags & GENERIC_READ) ||
+ ((ace_flags & FILE_READ_RIGHTS) == FILE_READ_RIGHTS))
*pmode |= (S_IRUGO & bits_to_set);
- if ((ace_flags & GENERIC_EXECUTE) || (ace_flags & FILE_EXEC_RIGHTS))
+ if ((ace_flags & GENERIC_EXECUTE) ||
+ ((ace_flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS))
*pmode |= (S_IXUGO & bits_to_set);
#ifdef CONFIG_CIFS_DEBUG2
@@ -234,11 +235,24 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
cifscred->aces = kmalloc(num_aces *
sizeof(struct cifs_ace *), GFP_KERNEL);*/
+ /* reset rwx permissions for user/group/other */
+ inode->i_mode &= ~(S_IRWXUGO);
+
for (i = 0; i < num_aces; ++i) {
ppace[i] = (struct cifs_ace *) (acl_base + acl_size);
parse_ace(ppace[i], end_of_acl);
+ if (compare_sids(&(ppace[i]->sid), pownersid))
+ access_flags_to_mode(ppace[i]->access_req,
+ &(inode->i_mode), S_IRWXU);
+ if (compare_sids(&(ppace[i]->sid), pgrpsid))
+ access_flags_to_mode(ppace[i]->access_req,
+ &(inode->i_mode), S_IRWXG);
+ if (compare_sids(&(ppace[i]->sid), &sid_everyone))
+ access_flags_to_mode(ppace[i]->access_req,
+ &(inode->i_mode), S_IRWXO);
+
/* memcpy((void *)(&(cifscred->aces[i])),
(void *)ppace[i],
sizeof(struct cifs_ace)); */