[Qemu-devel] [RFC][PATCH v4 14/18] virtagent: add client capabilities init function

[Michael Roth <mdroth@linux.vnet.ibm.com>]

Non-monitor version of agent_capabilities monitor function. This is
called by the local RPC server when it gets a "hello" from the guest
agent to re-negotiate guest agent capabilities.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 virtagent.c |   34 ++++++++++++++++++++++++++++++++++
 virtagent.h |    1 +
 2 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/virtagent.c b/virtagent.c
index e0f7f99..4ec1b42 100644
--- a/virtagent.c
+++ b/virtagent.c
@@ -694,3 +694,37 @@ int do_agent_capabilities(Monitor *mon, const QDict *mon_params,
 
     return 0;
 }
+
+/* non-HMP/QMP RPC client functions */
+
+int va_client_init_capabilities(void)
+{
+    xmlrpc_env env;
+    xmlrpc_value *params;
+    VARPCData *rpc_data;
+    int ret;
+
+    xmlrpc_env_init(&env);
+
+    params = xmlrpc_build_value(&env, "()");
+    if (rpc_has_error(&env)) {
+        return -1;
+    }
+
+    rpc_data = qemu_mallocz(sizeof(VARPCData));
+    rpc_data->cb = do_agent_capabilities_cb;
+    rpc_data->mon_cb = NULL;
+    rpc_data->mon_data = NULL;
+
+    ret = rpc_execute(&env, "system.listMethods", params, rpc_data);
+    if (ret == -EREMOTE) {
+        LOG("RPC Failed (%i): %s\n", env.fault_code,
+            env.fault_string);
+        return -1;
+    } else if (ret == -1) {
+        LOG("RPC communication error\n");
+        return -1;
+    }
+
+    return 0;
+}
diff --git a/virtagent.h b/virtagent.h
index c10ee35..da4be60 100644
--- a/virtagent.h
+++ b/virtagent.h
@@ -23,6 +23,7 @@
 #define VA_MAX_CHUNK_SIZE 4096 /* max bytes at a time for get/send file */
 
 int va_client_init(VPDriver *vp_drv, bool is_host);
+int va_client_init_capabilities(void);
 void do_agent_viewfile_print(Monitor *mon, const QObject *qobject);
 int do_agent_viewfile(Monitor *mon, const QDict *mon_params,
                       MonitorCompletion cb, void *opaque);
-- 
1.7.0.4