Commit d0cbe56a authored by Steve French's avatar Steve French
Browse files

[smb3] improve error message when mount options conflict with posix 



POSIX extensions require SMB3.1.1 (so improve the error
message when vers=3.0, 2.1 or 2.0 is specified on mount)

Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent dfd42fac

fs/cifs/connect.c

+10 −1
Original line number Diff line number Diff line
@@ -2340,10 +2340,19 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx) 
		if (ses->server->posix_ext_supported) {

			tcon->posix_extensions = true;

			pr_warn_once("SMB3.11 POSIX Extensions are experimental\n");

		} else {

		} else if ((ses->server->vals->protocol_id == SMB311_PROT_ID) ||

		    (strcmp(ses->server->vals->version_string,

		     SMB3ANY_VERSION_STRING) == 0) ||

		    (strcmp(ses->server->vals->version_string,

		     SMBDEFAULT_VERSION_STRING) == 0)) {

			cifs_dbg(VFS, "Server does not support mounting with posix SMB3.11 extensions\n");

			rc = -EOPNOTSUPP;

			goto out_fail;

		} else {

			cifs_dbg(VFS, "Check vers= mount option. SMB3.11 "

				"disabled but required for POSIX extensions\n");

			rc = -EOPNOTSUPP;

			goto out_fail;

		}

	}