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authorSteve French <smfrench@gmail.com>2016-09-23 08:36:34 +0200
committerSteve French <smfrench@gmail.com>2016-10-14 21:22:01 +0200
commit9593265531fa66177a0547e63abd99907ec0a687 (patch)
tree81350498ef2188029c0555163b60899ee029e372 /fs/cifs/connect.c
parentCIFS: Reset read oplock to NONE if we have mandatory locks after reopen (diff)
downloadlinux-9593265531fa66177a0547e63abd99907ec0a687.tar.xz
linux-9593265531fa66177a0547e63abd99907ec0a687.zip
CIFS: Add new mount option to set owner uid and gid from special sids in acl
Add "idsfromsid" mount option to indicate to cifs.ko that it should try to retrieve the uid and gid owner fields from special sids in the ACL if present. This first patch just adds the parsing for the mount option. Signed-off-by: Steve French <steve.french@primarydata.com> Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to '')
-rw-r--r--fs/cifs/connect.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 657369db76df..aab5227979e2 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -75,7 +75,7 @@ enum {
Opt_noposixpaths, Opt_nounix,
Opt_nocase,
Opt_brl, Opt_nobrl,
- Opt_forcemandatorylock, Opt_setuids,
+ Opt_forcemandatorylock, Opt_setuidfromacl, Opt_setuids,
Opt_nosetuids, Opt_dynperm, Opt_nodynperm,
Opt_nohard, Opt_nosoft,
Opt_nointr, Opt_intr,
@@ -147,6 +147,7 @@ static const match_table_t cifs_mount_option_tokens = {
{ Opt_forcemandatorylock, "forcemand" },
{ Opt_setuids, "setuids" },
{ Opt_nosetuids, "nosetuids" },
+ { Opt_setuidfromacl, "idsfromsid" },
{ Opt_dynperm, "dynperm" },
{ Opt_nodynperm, "nodynperm" },
{ Opt_nohard, "nohard" },
@@ -1376,6 +1377,9 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
case Opt_nosetuids:
vol->setuids = 0;
break;
+ case Opt_setuidfromacl:
+ vol->setuidfromacl = 1;
+ break;
case Opt_dynperm:
vol->dynperm = true;
break;
@@ -3279,6 +3283,8 @@ int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM;
if (pvolume_info->setuids)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SET_UID;
+ if (pvolume_info->setuidfromacl)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UID_FROM_ACL;
if (pvolume_info->server_ino)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM;
if (pvolume_info->remap)