Commit 55cdea9e authored by Hendrik Brueckner's avatar Hendrik Brueckner Committed by David S. Miller

af_iucv: New error return codes for connect()

If the iucv_path_connect() call fails then return an error code that
corresponds to the iucv_path_connect() failure condition; instead of
returning -ECONNREFUSED for any failure.

This helps to improve error handling for user space applications
(e.g.  inform the user that the z/VM guest is not authorized to
connect to other guest virtual machines).

The error return codes are based on those described in connect(2).
Signed-off-by: default avatarHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: default avatarUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 48e4cc77
......@@ -494,7 +494,21 @@ static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr,
if (err) {
iucv_path_free(iucv->path);
iucv->path = NULL;
err = -ECONNREFUSED;
switch (err) {
case 0x0b: /* Target communicator is not logged on */
err = -ENETUNREACH;
break;
case 0x0d: /* Max connections for this guest exceeded */
case 0x0e: /* Max connections for target guest exceeded */
err = -EAGAIN;
break;
case 0x0f: /* Missing IUCV authorization */
err = -EACCES;
break;
default:
err = -ECONNREFUSED;
break;
}
goto done;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment