spice: connection events.

This patch adds support for connection events to spice.  The events are
quite simliar to the vnc events.  Unlike vnc spice uses multiple tcp
channels though.  qemu will report every single tcp connection (aka
spice channel).  If you want track spice sessions only you can filter
for the main channel (channel-type == 1).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

4 files changed, 152 insertions, 0 deletions

diff --git a/QMP/qmp-events.txt b/QMP/qmp-events.txt
index aa2021082f..0ce5d4efe2 100644
--- a/QMP/qmp-events.txt
+++ b/QMP/qmp-events.txt
@@ -182,6 +182,70 @@ Example:
                     "host": "127.0.0.1", "sasl_username": "luiz" } },
         "timestamp": { "seconds": 1263475302, "microseconds": 150772 } }
 
+SPICE_CONNECTED, SPICE_DISCONNECTED
+-----------------------------------
+
+Emitted when a SPICE client connects or disconnects.
+
+Data:
+
+- "server": Server information (json-object)
+  - "host": IP address (json-string)
+  - "port": port number (json-string)
+  - "family": address family (json-string, "ipv4" or "ipv6")
+- "client": Client information (json-object)
+  - "host": IP address (json-string)
+  - "port": port number (json-string)
+  - "family": address family (json-string, "ipv4" or "ipv6")
+
+Example:
+
+{ "timestamp": {"seconds": 1290688046, "microseconds": 388707},
+  "event": "SPICE_CONNECTED",
+  "data": {
+    "server": { "port": "5920", "family": "ipv4", "host": "127.0.0.1"},
+    "client": {"port": "52873", "family": "ipv4", "host": "127.0.0.1"}
+}}
+
+
+SPICE_INITIALIZED
+-----------------
+
+Emitted after initial handshake and authentication takes place (if any)
+and the SPICE channel is up'n'running
+
+Data:
+
+- "server": Server information (json-object)
+  - "host": IP address (json-string)
+  - "port": port number (json-string)
+  - "family": address family (json-string, "ipv4" or "ipv6")
+  - "auth": authentication method (json-string, optional)
+- "client": Client information (json-object)
+  - "host": IP address (json-string)
+  - "port": port number (json-string)
+  - "family": address family (json-string, "ipv4" or "ipv6")
+  - "connection-id": spice connection id.  All channels with the same id
+                     belong to the same spice session (json-int)
+  - "channel-type": channel type.  "1" is the main control channel, filter for
+                    this one if you want track spice sessions only (json-int)
+  - "channel-id": channel id.  Usually "0", might be different needed when
+                  multiple channels of the same type exist, such as multiple
+                  display channels in a multihead setup (json-int)
+  - "tls": whevener the channel is encrypted (json-bool)
+
+Example:
+
+{ "timestamp": {"seconds": 1290688046, "microseconds": 417172},
+  "event": "SPICE_INITIALIZED",
+  "data": {"server": {"auth": "spice", "port": "5921",
+                      "family": "ipv4", "host": "127.0.0.1"},
+           "client": {"port": "49004", "family": "ipv4", "channel-type": 3,
+                      "connection-id": 1804289383, "host": "127.0.0.1",
+                      "channel-id": 0, "tls": true}
+}}
+
+
 WATCHDOG
 --------
 
diff --git a/monitor.c b/monitor.c
index ec31eac8c1..f04dda527a 100644
--- a/monitor.c
+++ b/monitor.c
@@ -59,6 +59,7 @@
 #ifdef CONFIG_SIMPLE_TRACE
 #include "trace.h"
 #endif
+#include "ui/qemu-spice.h"
 
 //#define DEBUG
 //#define DEBUG_COMPLETION
@@ -459,6 +460,15 @@ void monitor_protocol_event(MonitorEvent event, QObject *data)
         case QEVENT_WATCHDOG:
             event_name = "WATCHDOG";
             break;
+        case QEVENT_SPICE_CONNECTED:
+            event_name = "SPICE_CONNECTED";
+            break;
+        case QEVENT_SPICE_INITIALIZED:
+            event_name = "SPICE_INITIALIZED";
+            break;
+        case QEVENT_SPICE_DISCONNECTED:
+            event_name = "SPICE_DISCONNECTED";
+            break;
         default:
             abort();
             break;
diff --git a/monitor.h b/monitor.h
index 2d36bba87f..4f2d328db5 100644
--- a/monitor.h
+++ b/monitor.h
@@ -32,6 +32,9 @@ typedef enum MonitorEvent {
     QEVENT_BLOCK_IO_ERROR,
     QEVENT_RTC_CHANGE,
     QEVENT_WATCHDOG,
+    QEVENT_SPICE_CONNECTED,
+    QEVENT_SPICE_INITIALIZED,
+    QEVENT_SPICE_DISCONNECTED,
     QEVENT_MAX,
 } MonitorEvent;
 
diff --git a/ui/spice-core.c b/ui/spice-core.c
index b7fa0315bd..93461c6d06 100644
--- a/ui/spice-core.c
+++ b/ui/spice-core.c
@@ -18,16 +18,24 @@
 #include <spice.h>
 #include <spice-experimental.h>
 
+#include <netdb.h>
+
 #include "qemu-common.h"
 #include "qemu-spice.h"
 #include "qemu-timer.h"
 #include "qemu-queue.h"
 #include "qemu-x509.h"
+#include "qemu_socket.h"
+#include "qint.h"
+#include "qbool.h"
+#include "qstring.h"
+#include "qjson.h"
 #include "monitor.h"
 
 /* core bits */
 
 static SpiceServer *spice_server;
+static const char *auth = "spice";
 int using_spice = 0;
 
 struct SpiceTimer {
@@ -121,6 +129,68 @@ static void watch_remove(SpiceWatch *watch)
     qemu_free(watch);
 }
 
+#if SPICE_INTERFACE_CORE_MINOR >= 3
+
+static void add_addr_info(QDict *dict, struct sockaddr *addr, int len)
+{
+    char host[NI_MAXHOST], port[NI_MAXSERV];
+    const char *family;
+
+    getnameinfo(addr, len, host, sizeof(host), port, sizeof(port),
+                NI_NUMERICHOST | NI_NUMERICSERV);
+    family = inet_strfamily(addr->sa_family);
+
+    qdict_put(dict, "host", qstring_from_str(host));
+    qdict_put(dict, "port", qstring_from_str(port));
+    qdict_put(dict, "family", qstring_from_str(family));
+}
+
+static void add_channel_info(QDict *dict, SpiceChannelEventInfo *info)
+{
+    int tls = info->flags & SPICE_CHANNEL_EVENT_FLAG_TLS;
+
+    qdict_put(dict, "connection-id", qint_from_int(info->connection_id));
+    qdict_put(dict, "channel-type", qint_from_int(info->type));
+    qdict_put(dict, "channel-id", qint_from_int(info->id));
+    qdict_put(dict, "tls", qbool_from_int(tls));
+}
+
+static void channel_event(int event, SpiceChannelEventInfo *info)
+{
+    static const int qevent[] = {
+        [ SPICE_CHANNEL_EVENT_CONNECTED    ] = QEVENT_SPICE_CONNECTED,
+        [ SPICE_CHANNEL_EVENT_INITIALIZED  ] = QEVENT_SPICE_INITIALIZED,
+        [ SPICE_CHANNEL_EVENT_DISCONNECTED ] = QEVENT_SPICE_DISCONNECTED,
+    };
+    QDict *server, *client;
+    QObject *data;
+
+    client = qdict_new();
+    add_addr_info(client, &info->paddr, info->plen);
+
+    server = qdict_new();
+    add_addr_info(server, &info->laddr, info->llen);
+
+    if (event == SPICE_CHANNEL_EVENT_INITIALIZED) {
+        qdict_put(server, "auth", qstring_from_str(auth));
+        add_channel_info(client, info);
+    }
+
+    data = qobject_from_jsonf("{ 'client': %p, 'server': %p }",
+                              QOBJECT(client), QOBJECT(server));
+    monitor_protocol_event(qevent[event], data);
+    qobject_decref(data);
+}
+
+#else /* SPICE_INTERFACE_CORE_MINOR >= 3 */
+
+static QList *channel_list_get(void)
+{
+    return NULL;
+}
+
+#endif /* SPICE_INTERFACE_CORE_MINOR >= 3 */
+
 static SpiceCoreInterface core_interface = {
     .base.type          = SPICE_INTERFACE_CORE,
     .base.description   = "qemu core services",
@@ -135,6 +205,10 @@ static SpiceCoreInterface core_interface = {
     .watch_add          = watch_add,
     .watch_update_mask  = watch_update_mask,
     .watch_remove       = watch_remove,
+
+#if SPICE_INTERFACE_CORE_MINOR >= 3
+    .channel_event      = channel_event,
+#endif
 };
 
 /* config string parsing */
@@ -316,6 +390,7 @@ void qemu_spice_init(void)
         spice_server_set_ticket(spice_server, password, 0, 0, 0);
     }
     if (qemu_opt_get_bool(opts, "disable-ticketing", 0)) {
+        auth = "none";
         spice_server_set_noauth(spice_server);
     }