From 55cdea9ed9cf2d76993e40ed7a1fc649a14db07c Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Mon, 5 Jan 2009 18:07:07 -0800
Subject: [PATCH] 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>
---
net/iucv/af_iucv.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index af3192d2a5a3..1077bc4e6e2a 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -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;
}
--
2.34.1