[Qemu-devel] [PATCH] hmp: Update info vnc

[Dr. David Alan Gilbert (git)]

From: "Dr. David Alan Gilbert" <address@hidden>

The QMP query-vnc interfaces have gained a lot more information that
the HMP interfaces hasn't got yet. Update it.

Note the output format has changed, but this is HMP so that's OK.

In particular, this now includes client information for reverse
connections:

-vnc :0
(qemu) info vnc
default:
  Server: 0.0.0.0:5900 (ipv4)
    Auth: none (Sub: none)
  Auth: none (Sub: none)

  (Now connect a client)

(qemu) info vnc
default:
  Server: 0.0.0.0:5900 (ipv4)
    Auth: none (Sub: none)
  Client: 127.0.0.1:51828 (ipv4)
    x509_dname: none
    username: none
  Auth: none (Sub: none)

-vnc localhost:7000,reverse
(qemu) info vnc
default:
  Client: ::1:7000 (ipv6)
    x509_dname: none
    username: none
  Auth: none (Sub: none)

-vnc :1,password,id=rev -vnc localhost:7000,reverse
(qemu) info vnc
default:
  Client: ::1:7000 (ipv6)
    x509_dname: none
    username: none
  Auth: none (Sub: none)
rev:
  Server: 0.0.0.0:5901 (ipv4)
    Auth: vnc (Sub: none)
  Client: 127.0.0.1:53616 (ipv4)
    x509_dname: none
    username: none
  Auth: vnc (Sub: none)

This was originally RH bz 1461682

Signed-off-by: Dr. David Alan Gilbert <address@hidden>
---
 hmp.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 67 insertions(+), 31 deletions(-)

diff --git a/hmp.c b/hmp.c
index dee40284c1..c11a5fe2c6 100644
--- a/hmp.c
+++ b/hmp.c
@@ -600,50 +600,86 @@ void hmp_info_blockstats(Monitor *mon, const QDict *qdict)
     qapi_free_BlockStatsList(stats_list);
 }
 
+/* Helper for hmp_info_vnc_clients, _servers */
+static void hmp_info_VncBasicInfo(Monitor *mon, VncBasicInfo *info,
+                                  const char *name)
+{
+    monitor_printf(mon, "  %s: %s:%s (%s%s)\n",
+                   name,
+                   info->host,
+                   info->service,
+                   NetworkAddressFamily_lookup[info->family],
+                   info->websocket ? " (Websocket)" : "");
+}
+
+/* Helper displaying and euth and crypt info */
+static void hmp_info_vnc_authcrypt(Monitor *mon, const char *indent,
+                                   VncPrimaryAuth auth,
+                                   VncVencryptSubAuth *vencrypt)
+{
+    monitor_printf(mon, "%sAuth: %s (Sub: %s)\n", indent,
+                   VncPrimaryAuth_lookup[auth],
+                   vencrypt ? VncVencryptSubAuth_lookup[*vencrypt] : "none");
+}
+
+static void hmp_info_vnc_clients(Monitor *mon, VncClientInfoList *client)
+{
+    while (client) {
+        VncClientInfo *cinfo = client->value;
+
+        hmp_info_VncBasicInfo(mon, (VncBasicInfo *)cinfo, "Client");
+        monitor_printf(mon, "    x509_dname: %s\n",
+                       cinfo->x509_dname ?
+                       cinfo->x509_dname : "none");
+        monitor_printf(mon, "    username: %s\n",
+                       cinfo->has_sasl_username ?
+                       cinfo->sasl_username : "none");
+
+        client = client->next;
+    }
+}
+
+static void hmp_info_vnc_servers(Monitor *mon, VncServerInfo2List *server)
+{
+    while (server) {
+        VncServerInfo2 *sinfo = server->value;
+        hmp_info_VncBasicInfo(mon, (VncBasicInfo *)sinfo, "Server");
+        hmp_info_vnc_authcrypt(mon, "    ", sinfo->auth,
+                               sinfo->has_vencrypt ? &sinfo->vencrypt : NULL);
+        server = server->next;
+    }
+}
+
 void hmp_info_vnc(Monitor *mon, const QDict *qdict)
 {
-    VncInfo *info;
+    VncInfo2List *info2l;
     Error *err = NULL;
-    VncClientInfoList *client;
 
-    info = qmp_query_vnc(&err);
+    info2l = qmp_query_vnc_servers(&err);
     if (err) {
         error_report_err(err);
         return;
     }
-
-    if (!info->enabled) {
-        monitor_printf(mon, "Server: disabled\n");
-        goto out;
-    }
-
-    monitor_printf(mon, "Server:\n");
-    if (info->has_host && info->has_service) {
-        monitor_printf(mon, "     address: %s:%s\n", info->host, 
info->service);
-    }
-    if (info->has_auth) {
-        monitor_printf(mon, "        auth: %s\n", info->auth);
+    if (!info2l) {
+        monitor_printf(mon, "None\n");
+        return;
     }
 
-    if (!info->has_clients || info->clients == NULL) {
-        monitor_printf(mon, "Client: none\n");
-    } else {
-        for (client = info->clients; client; client = client->next) {
-            monitor_printf(mon, "Client:\n");
-            monitor_printf(mon, "     address: %s:%s\n",
-                           client->value->host,
-                           client->value->service);
-            monitor_printf(mon, "  x509_dname: %s\n",
-                           client->value->x509_dname ?
-                           client->value->x509_dname : "none");
-            monitor_printf(mon, "    username: %s\n",
-                           client->value->has_sasl_username ?
-                           client->value->sasl_username : "none");
+    while (info2l) {
+        VncInfo2 *info = info2l->value;
+        monitor_printf(mon, "%s:\n", info->id);
+        hmp_info_vnc_servers(mon, info->server);
+        hmp_info_vnc_clients(mon, info->clients);
+        hmp_info_vnc_authcrypt(mon, "  ", info->auth,
+                          info->has_vencrypt ? &info->vencrypt : NULL);
+        if (info->has_display) {
+            monitor_printf(mon, "  Display: %s\n", info->display);
         }
+        info2l = info2l->next;
     }
 
-out:
-    qapi_free_VncInfo(info);
+    qapi_free_VncInfo2List(info2l);
+
 }
 
 #ifdef CONFIG_SPICE
-- 
2.13.0