From: Shirish Pargaonkar <shirishpargaonkar@xxxxxxxxx>
Allow setting cifs_acl on the server.
Pass on to the server the ACL blob generated by an application.
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@xxxxxxxxx>
---
fs/cifs/cifsacl.c | 3 ++-
fs/cifs/cifsproto.h | 2 ++
fs/cifs/xattr.c | 14 ++++++++++++++
3 files changed, 18 insertions(+), 1 deletions(-)
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index c6ebea0..43c1190 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -677,7 +677,8 @@ out:
}
/* Set an ACL on the server */
-static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
+int
+set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
struct inode *inode, const char *path)
{
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index db961dc..4aed3c6 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -136,6 +136,8 @@ extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
extern int mode_to_cifs_acl(struct inode *inode, const char *path, __u64);
extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
const char *, u32 *);
+extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
+ const char *);
extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
const char *);
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 6667d26..137f905 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -112,6 +112,7 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
struct cifsTconInfo *pTcon;
struct super_block *sb;
char *full_path;
+ struct cifs_ntsd *pacl;
if (direntry == NULL)
return -EIO;
@@ -166,6 +167,19 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value,
(__u16)value_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ } else if (strncmp(ea_name, CIFS_XATTR_CIFS_ACL,
+ strlen(CIFS_XATTR_CIFS_ACL)) == 0) {
+ pacl = kmalloc(value_size, GFP_KERNEL);
+ if (!pacl) {
+ cFYI(1, "%s: Can't allocate memory for ACL",
+ __func__);
+ rc = -ENOMEM;
+ } else {
+ memcpy(pacl, ea_value, value_size);
+ rc = set_cifs_acl(pacl, value_size,
+ direntry->d_inode, full_path);
+ kfree(pacl);
+ }
} else {
int temp;
temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
--
1.6.0.2
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