From: Daniel P. Berrange <berrange@redhat.com>
Date: Wed, 6 Sep 2017 10:38:36 +0000 (+0100)
Subject: io: include full error message in websocket handshake trace
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3a3f8705962c8c8a47a9b981ffd5aab7274ad508;p=qemu.git

io: include full error message in websocket handshake trace

When the websocket handshake fails it is useful to log the real
error message via the trace points for debugging purposes.

Fixes bug: #1715186

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---

diff --git a/io/channel-websock.c b/io/channel-websock.c
index f5fac5b422..6ddcec1549 100644
--- a/io/channel-websock.c
+++ b/io/channel-websock.c
@@ -507,7 +507,7 @@ static gboolean qio_channel_websock_handshake_send(QIOChannel *ioc,
                             &err);
 
     if (ret < 0) {
-        trace_qio_channel_websock_handshake_fail(ioc);
+        trace_qio_channel_websock_handshake_fail(ioc, error_get_pretty(err));
         qio_task_set_error(task, err);
         qio_task_complete(task);
         return FALSE;
@@ -516,7 +516,8 @@ static gboolean qio_channel_websock_handshake_send(QIOChannel *ioc,
     buffer_advance(&wioc->encoutput, ret);
     if (wioc->encoutput.offset == 0) {
         if (wioc->io_err) {
-            trace_qio_channel_websock_handshake_fail(ioc);
+            trace_qio_channel_websock_handshake_fail(
+                ioc, error_get_pretty(wioc->io_err));
             qio_task_set_error(task, wioc->io_err);
             wioc->io_err = NULL;
             qio_task_complete(task);
@@ -547,7 +548,7 @@ static gboolean qio_channel_websock_handshake_io(QIOChannel *ioc,
          * client connection, as most of the time we have an
          * HTTP 4xx err response to send instead
          */
-        trace_qio_channel_websock_handshake_fail(ioc);
+        trace_qio_channel_websock_handshake_fail(ioc, error_get_pretty(err));
         qio_task_set_error(task, err);
         qio_task_complete(task);
         return FALSE;
diff --git a/io/trace-events b/io/trace-events
index 3d233698d0..6459f71f5b 100644
--- a/io/trace-events
+++ b/io/trace-events
@@ -46,7 +46,7 @@ qio_channel_websock_new_server(void *ioc, void *master) "Websock new client ioc=
 qio_channel_websock_handshake_start(void *ioc) "Websock handshake start ioc=%p"
 qio_channel_websock_handshake_pending(void *ioc, int status) "Websock handshake pending ioc=%p status=%d"
 qio_channel_websock_handshake_reply(void *ioc) "Websock handshake reply ioc=%p"
-qio_channel_websock_handshake_fail(void *ioc) "Websock handshake fail ioc=%p"
+qio_channel_websock_handshake_fail(void *ioc, const char *msg) "Websock handshake fail ioc=%p err=%s"
 qio_channel_websock_handshake_complete(void *ioc) "Websock handshake complete ioc=%p"
 
 # io/channel-command.c