diff options
| author | Steve French <stfrench@microsoft.com> | 2020-06-12 09:25:21 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2020-06-12 13:21:15 -0500 |
| commit | 975221eca5fbfdb4b6b1d17c9e540d4d7627ce18 (patch) | |
| tree | 198ac249e567c11a1702d89557bcac88e43fdd8b /fs/cifs/cifsacl.c | |
| parent | e4bd7c4a8d2a8471d821dd29919378d1b8567091 (diff) | |
| download | linux-975221eca5fbfdb4b6b1d17c9e540d4d7627ce18.tar.bz2 | |
smb3: allow uid and gid owners to be set on create with idsfromsid mount option
Currently idsfromsid mount option allows querying owner information from the
special sids used to represent POSIX uids and gids but needed changes to
populate the security descriptor context with the owner information when
idsfromsid mount option was used.
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsacl.c')
| -rw-r--r-- | fs/cifs/cifsacl.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index ae421634aa42..63aaa363ed14 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -849,6 +849,28 @@ unsigned int setup_special_mode_ACE(struct cifs_ace *pntace, __u64 nmode) return ace_size; } +unsigned int setup_special_user_owner_ACE(struct cifs_ace *pntace) +{ + int i; + unsigned int ace_size = 28; + + pntace->type = ACCESS_ALLOWED_ACE_TYPE; + pntace->flags = 0x0; + pntace->access_req = cpu_to_le32(GENERIC_ALL); + pntace->sid.num_subauth = 3; + pntace->sid.revision = 1; + for (i = 0; i < NUM_AUTHS; i++) + pntace->sid.authority[i] = sid_unix_NFS_users.authority[i]; + + pntace->sid.sub_auth[0] = sid_unix_NFS_users.sub_auth[0]; + pntace->sid.sub_auth[1] = sid_unix_NFS_users.sub_auth[1]; + pntace->sid.sub_auth[2] = cpu_to_le32(current_fsgid().val); + + /* size = 1 + 1 + 2 + 4 + 1 + 1 + 6 + (psid->num_subauth*4) */ + pntace->size = cpu_to_le16(ace_size); + return ace_size; +} + static int set_chmod_dacl(struct cifs_acl *pndacl, struct cifs_sid *pownersid, struct cifs_sid *pgrpsid, __u64 nmode, bool modefromsid) { |