git.meshlink.io Git - catta/blob - avahi-daemon/dbus-async-address-resolver.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of avahi.
   5
   6   avahi is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   avahi is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13   or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
  14   Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with avahi; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27
  28 #include <avahi-common/malloc.h>
  29 #include <avahi-common/dbus.h>
  30 #include <avahi-common/error.h>
  31 #include <avahi-core/log.h>
  32
  33 #include "dbus-util.h"
  34 #include "dbus-internal.h"
  35
  36 void avahi_dbus_async_address_resolver_free(AsyncAddressResolverInfo *i) {
  37     assert(i);
  38
  39     if (i->address_resolver)
  40         avahi_s_address_resolver_free(i->address_resolver);
  41
  42     if (i->path) {
  43         dbus_connection_unregister_object_path(server->bus, i->path);
  44         avahi_free(i->path);
  45     }
  46
  47     AVAHI_LLIST_REMOVE(AsyncAddressResolverInfo, async_address_resolvers, i->client->async_address_resolvers, i);
  48
  49     i->client->n_objects--;
  50     assert(i->client->n_objects >= 0);
  51
  52     avahi_free(i);
  53 }
  54
  55 void avahi_dbus_async_address_resolver_callback(AvahiSAddressResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const AvahiAddress *address, const char *host_name, AvahiLookupResultFlags flags, void* userdata) {
  56     AsyncAddressResolverInfo *i = userdata;
  57     DBusMessage *reply;
  58
  59     assert(r);
  60     assert(i);
  61
  62     reply = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, avahi_dbus_map_resolve_signal_name(event));
  63
  64     if (event == AVAHI_RESOLVER_FOUND) {
  65         char t[AVAHI_ADDRESS_STR_MAX], *pt = t;
  66         int32_t i_interface, i_protocol, i_aprotocol;
  67         uint32_t u_flags;
  68
  69         assert(address);
  70         assert(host_name);
  71         avahi_address_snprint(t, sizeof(t), address);
  72
  73         i_interface = (int32_t) interface;
  74         i_protocol = (int32_t) protocol;
  75         i_aprotocol = (int32_t) address->proto;
  76         u_flags = (uint32_t) flags;
  77
  78         dbus_message_append_args(
  79             reply,
  80             DBUS_TYPE_INT32, &i_interface,
  81             DBUS_TYPE_INT32, &i_protocol,
  82             DBUS_TYPE_INT32, &i_aprotocol,
  83             DBUS_TYPE_STRING, &pt,
  84             DBUS_TYPE_STRING, &host_name,
  85             DBUS_TYPE_UINT32, &u_flags,
  86             DBUS_TYPE_INVALID);
  87
  88     }  else {
  89         assert(event == AVAHI_RESOLVER_FAILURE);
  90         avahi_dbus_append_server_error(reply);
  91     }
  92
  93     dbus_message_set_destination(reply, i->client->name);
  94     dbus_connection_send(server->bus, reply, NULL);
  95     dbus_message_unref(reply);
  96 }
  97
  98 DBusHandlerResult avahi_dbus_msg_async_address_resolver_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
  99     DBusError error;
 100     AsyncAddressResolverInfo *i = userdata;
 101
 102     assert(c);
 103     assert(m);
 104     assert(i);
 105
 106     dbus_error_init(&error);
 107
 108     avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s",
 109                     dbus_message_get_interface(m),
 110                     dbus_message_get_path(m),
 111                     dbus_message_get_member(m));
 112
 113     /* Introspection */
 114     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
 115         return avahi_dbus_handle_introspect(c, m, "AddressResolver.introspect");
 116
 117     /* Access control */
 118     if (strcmp(dbus_message_get_sender(m), i->client->name))
 119         return avahi_dbus_respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
 120
 121     if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Free")) {
 122
 123         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 124             avahi_log_warn("Error parsing AddressResolver::Free message");
 125             goto fail;
 126         }
 127
 128         avahi_dbus_async_address_resolver_free(i);
 129         return avahi_dbus_respond_ok(c, m);
 130     }
 131
 132     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
 133
 134 fail:
 135     if (dbus_error_is_set(&error))
 136         dbus_error_free(&error);
 137
 138     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 139 }