From: Shirish Pargaonkar <shirishpargaonkar@xxxxxxxxx>
Added set acl function. Very similar to set cifs acl function for smb1.
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@xxxxxxxxx>
---
fs/cifs/smb2ops.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 61 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 6b1ef79..490737c 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1369,6 +1369,63 @@ static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
return pntsd;
}
+#ifdef CONFIG_CIFS_ACL
+int
+set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
+ struct inode *inode, const char *path, int aclflag)
+{
+ u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
+ unsigned int xid;
+ int rc, access_flags, create_options = 0;
+ struct cifs_tcon *tcon;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
+ struct cifs_fid fid;
+ struct cifs_open_parms oparms;
+ __le16 *utf16_path;
+
+ cifs_dbg(FYI, "set smb3 acl for path %s\n", path);
+ if (IS_ERR(tlink))
+ return PTR_ERR(tlink);
+
+ tcon = tlink_tcon(tlink);
+ xid = get_xid();
+
+ if (backup_cred(cifs_sb))
+ oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
+
+ if (aclflag == CIFS_ACL_OWNER || aclflag == CIFS_ACL_GROUP)
+ access_flags = WRITE_OWNER;
+ else
+ access_flags = WRITE_DAC;
+
+ utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
+ if (!utf16_path)
+ return -ENOMEM;
+
+ oparms.tcon = tcon;
+ oparms.desired_access = access_flags;
+ oparms.create_options = create_options;
+ oparms.disposition = FILE_OPEN;
+ oparms.path = path;
+ oparms.fid = &fid;
+ oparms.reconnect = false;
+
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
+ kfree(utf16_path);
+ if (!rc) {
+ rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid,
+ fid.volatile_fid, pnntsd, acllen, aclflag);
+ SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+ }
+
+ cifs_put_tlink(tlink);
+ free_xid(xid);
+
+ return rc;
+}
+#endif /* CIFS_ACL */
+
/* Retrieve an ACL from the server */
static struct cifs_ntsd *
get_smb2_acl(struct cifs_sb_info *cifs_sb,
@@ -2495,7 +2552,7 @@ struct smb_version_operations smb20_operations = {
#ifdef CONFIG_CIFS_ACL
.get_acl = get_smb2_acl,
.get_acl_by_fid = get_smb2_acl_by_fid,
-/* .set_acl = set_smb3_acl, */
+ .set_acl = set_smb2_acl,
#endif /* CIFS_ACL */
};
@@ -2584,7 +2641,7 @@ struct smb_version_operations smb21_operations = {
#ifdef CONFIG_CIFS_ACL
.get_acl = get_smb2_acl,
.get_acl_by_fid = get_smb2_acl_by_fid,
-/* .set_acl = set_smb3_acl, */
+ .set_acl = set_smb2_acl,
#endif /* CIFS_ACL */
};
@@ -2683,7 +2740,7 @@ struct smb_version_operations smb30_operations = {
#ifdef CONFIG_CIFS_ACL
.get_acl = get_smb2_acl,
.get_acl_by_fid = get_smb2_acl_by_fid,
-/* .set_acl = set_smb3_acl, */
+ .set_acl = set_smb2_acl,
#endif /* CIFS_ACL */
};
@@ -2783,7 +2840,7 @@ struct smb_version_operations smb311_operations = {
#ifdef CONFIG_CIFS_ACL
.get_acl = get_smb2_acl,
.get_acl_by_fid = get_smb2_acl_by_fid,
-/* .set_acl = set_smb3_acl, */
+ .set_acl = set_smb2_acl,
#endif /* CIFS_ACL */
};
#endif /* CIFS_SMB311 */
--
1.9.1
--
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