monitor: Add host_net_add device argument completion

Also fix the parameters documentation.

Signed-off-by: Hani Benhabiles <hani@linux.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

hmp-commands.hx

@@ -1209,9 +1209,10 @@ ETEXI
     {
         .name       = "host_net_add",
         .args_type  = "device:s,opts:s?",
-        .params     = "tap|user|socket|vde|netmap|dump [options]",
+        .params     = "tap|user|socket|vde|netmap|bridge|dump [options]",
         .help       = "add host VLAN client",
         .mhandler.cmd = net_host_device_add,
+        .command_completion = host_net_add_completion,
     },
 
 STEXI

hmp.h

@@ -109,5 +109,6 @@ void watchdog_action_completion(ReadLineState *rs, int nb_args,
                                 const char *str);
 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
                                        const char *str);
+void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str);
 
 #endif

monitor.c

@@ -4594,6 +4594,22 @@ void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
     }
 }
 
+void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str)
+{
+    int i;
+    size_t len;
+    if (nb_args != 2) {
+        return;
+    }
+    len = strlen(str);
+    readline_set_completion_index(rs, len);
+    for (i = 0; host_net_devices[i]; i++) {
+        if (!strncmp(host_net_devices[i], str, len)) {
+            readline_add_completion(rs, host_net_devices[i]);
+        }
+    }
+}
+
 static void monitor_find_completion_by_table(Monitor *mon,
                                              const mon_cmd_t *cmd_table,
                                              char **args,