RxRPC: Don't attempt to reuse aborted connections

Connections that have seen a connection-level abort should not be reused
as the far end will just abort them again; instead a new connection
should be made.

Connection-level aborts occur due to such things as authentication
failures.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c
index dc5cb1e19509..0505cdc4d6d4 100644
--- a/net/rxrpc/ar-connevent.c
+++ b/net/rxrpc/ar-connevent.c
@@ -150,11 +150,15 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
         u32 serial;
         int loop, ret;
 
-        if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED)
+        if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) {
+                kleave(" = -ECONNABORTED [%u]", conn->state);
                 return -ECONNABORTED;
+        }
 
         serial = ntohl(sp->hdr.serial);
 
+        _enter("{%d},{%u,%%%u},", conn->debug_id, sp->hdr.type, serial);
+
         switch (sp->hdr.type) {
         case RXRPC_PACKET_TYPE_ABORT:
                 if (skb_copy_bits(skb, 0, &tmp, sizeof(tmp)) < 0)
@@ -199,6 +203,7 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
                 return 0;
 
         default:
+                _leave(" = -EPROTO [%u]", sp->hdr.type);
                 return -EPROTO;
         }
 }