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authorEric W. Biederman <ebiederm@xmission.com>2013-02-06 12:33:17 +0400
committerEric W. Biederman <ebiederm@xmission.com>2013-02-13 19:28:47 +0400
commit8abf2775dd425ec3c767ea7c5a51b45fc8be76c2 (patch)
tree7b6ba7f274246f8675db20845089a31625f5e1cd /fs/cifs/inode.c
parent8e3028b908a048ac0b3102504b7daad7b5544846 (diff)
downloadlinux-8abf2775dd425ec3c767ea7c5a51b45fc8be76c2.tar.xz
cifs: Use kuids and kgids SID to uid/gid mapping
Update id_mode_to_cifs_acl to take a kuid_t and a kgid_t. Replace NO_CHANGE_32 with INVALID_UID and INVALID_GID, and tests for NO_CHANGE_32 with uid_valid and gid_valid. Carefully unpack the value returned from request_key. memcpy the value into the expected type. The convert the uid/gid into a kuid/kgid. And then only if the result is a valid kuid or kgid update fuid/fgid. Cc: Steve French <smfrench@gmail.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/cifs/inode.c')
-rw-r--r--fs/cifs/inode.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index d7ea2a6eaead..d4cf7509c106 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2090,8 +2090,8 @@ static int
cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
{
unsigned int xid;
- uid_t uid = NO_CHANGE_32;
- gid_t gid = NO_CHANGE_32;
+ kuid_t uid = INVALID_UID;
+ kgid_t gid = INVALID_GID;
struct inode *inode = direntry->d_inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct cifsInodeInfo *cifsInode = CIFS_I(inode);
@@ -2150,7 +2150,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
#ifdef CONFIG_CIFS_ACL
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
- if (uid != NO_CHANGE_32 || gid != NO_CHANGE_32) {
+ if (uid_valid(uid) || gid_valid(gid)) {
rc = id_mode_to_cifs_acl(inode, full_path, NO_CHANGE_64,
uid, gid);
if (rc) {
@@ -2174,7 +2174,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
#ifdef CONFIG_CIFS_ACL
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
rc = id_mode_to_cifs_acl(inode, full_path, mode,
- NO_CHANGE_32, NO_CHANGE_32);
+ INVALID_UID, INVALID_GID);
if (rc) {
cFYI(1, "%s: Setting ACL failed with error: %d",
__func__, rc);