implement the command get_link_status to qemu-kve paket. so you can call per QMP...

[pve-qemu-kvm.git] / debian / patches / add-qmp-get-link-status.patch

Index: new/qapi-schema.json
===================================================================
--- new.orig/qapi-schema.json	2014-12-10 09:15:50.890262765 +0100
+++ new/qapi-schema.json	2014-12-11 09:20:31.072561486 +0100
@@ -1366,6 +1366,22 @@
 ##
 { 'command': 'set_link', 'data': {'name': 'str', 'up': 'bool'} }
 
+
+##
+# @get_link_status
+#
+# Get the current link state of the nics or nic.
+#
+# @name: name of the nic you get the state of
+#
+# Return: If link is up 1
+#         If link is down 0
+#         If an error occure an empty string.
+#
+# Notes: this is an Proxmox VE extension and not offical part of Qemu.
+##
+{ 'command': 'get_link_status', 'data': {'name': 'str'}, 'returns': 'int'}
+
 ##
 # @balloon:
 #
Index: new/net/net.c
===================================================================
--- new.orig/net/net.c	2014-12-10 10:24:39.790496356 +0100
+++ new/net/net.c	2014-12-11 09:37:55.971321170 +0100
@@ -1141,6 +1141,32 @@
     }
 }
 
+int64_t qmp_get_link_status(const char *name, Error **errp)
+{
+    NetClientState *ncs[MAX_QUEUE_NUM];
+    NetClientState *nc;
+    int queues;
+    bool ret;
+
+    queues = qemu_find_net_clients_except(name, ncs,
+                                          NET_CLIENT_OPTIONS_KIND_MAX,
+                                          MAX_QUEUE_NUM);
+
+    if (queues == 0) {
+        error_set(errp, QERR_DEVICE_NOT_FOUND, name);
+	return (int64_t) -1;
+    }
+
+    nc = ncs[0];
+    ret = ncs[0]->link_down;
+
+    if (nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
+      ret = ncs[0]->peer->link_down;
+    }
+
+    return (int64_t) ret ? 0 : 1;
+}
+
 void qmp_set_link(const char *name, bool up, Error **errp)
 {
     NetClientState *ncs[MAX_QUEUE_NUM];
Index: new/qmp-commands.hx
===================================================================
--- new.orig/qmp-commands.hx	2014-12-10 09:15:50.891262737 +0100
+++ new/qmp-commands.hx	2014-12-11 08:36:26.583532314 +0100
@@ -1473,6 +1473,29 @@
 EQMP
 
     {
+        .name       = "get_link_status",
+        .args_type  = "name:s",
+        .mhandler.cmd_new = qmp_marshal_input_get_link_status,
+    },
+
+SQMP
+get_link_status
+--------
+
+Get the link status of a network adapter.
+
+Arguments:
+
+- "name": network device name (json-string)
+
+Example:
+
+-> { "execute": "set_link", "arguments": { "name": "e1000.0" } }
+<- { "return": {1} }
+
+EQMP
+
+    {
         .name       = "getfd",
         .args_type  = "fdname:s",
         .params     = "getfd name",