Commit 55cdea9e authored Jan 05, 2009 by Hendrik Brueckner Committed by David S. Miller Jan 05, 2009

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: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 48e4cc77

net/iucv/af_iucv.c

+15 −1

Original line number	Diff line number	Diff line
		@@ -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;
		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;
		}

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