From b73b9a4ba753dfd7d304ee6ee4685b827524c533 Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 19 Apr 2011 18:27:10 +0000 Subject: [CIFS] Allow to set extended attribute cifs_acl (try #2) Allow setting cifs_acl on the server. Pass on to the server the ACL blob generated by an application. cifs is just a pass-through, it does not monitor or inspect the contents of the blob, server decides whether to enforce/apply the ACL blob composed by an application. If setting of ACL is succeessful, mark the inode for revalidation. Signed-off-by: Shirish Pargaonkar Acked-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/xattr.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'fs/cifs/xattr.c') diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index eae2a1491608..912995e013ec 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 +167,25 @@ 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 { +#ifdef CONFIG_CIFS_ACL + memcpy(pacl, ea_value, value_size); + rc = set_cifs_acl(pacl, value_size, + direntry->d_inode, full_path); + if (rc == 0) /* force revalidate of the inode */ + CIFS_I(direntry->d_inode)->time = 0; + kfree(pacl); +#else + cFYI(1, "Set CIFS ACL not supported yet"); +#endif /* CONFIG_CIFS_ACL */ + } } else { int temp; temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, -- cgit v1.2.3-55-g7522