1 /*** 2 This file is part of avahi. 3 4 avahi is free software; you can redistribute it and/or modify it 5 under the terms of the GNU Lesser General Public License as 6 published by the Free Software Foundation; either version 2.1 of the 7 License, or (at your option) any later version. 8 9 avahi is distributed in the hope that it will be useful, but WITHOUT 10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 11 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General 12 Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with avahi; if not, write to the Free Software 16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 17 USA. 18 ***/ 19 20 #ifdef HAVE_CONFIG_H 21 #include <config.h> 22 #endif 23 24 #include <string.h> 25 26 #include "avahi-common/avahi-malloc.h" 27 #include <avahi-common/dbus.h> 28 #include <avahi-common/error.h> 29 #include <avahi-core/log.h> 30 31 #include "dbus-util.h" 32 #include "dbus-internal.h" 33 34 void avahi_dbus_async_address_resolver_free(AsyncAddressResolverInfo *i) { 35 assert(i); 36 37 if (i->address_resolver) 38 avahi_s_address_resolver_free(i->address_resolver); 39 40 if (i->path) { 41 dbus_connection_unregister_object_path(server->bus, i->path); 42 avahi_free(i->path); 43 } 44 45 AVAHI_LLIST_REMOVE(AsyncAddressResolverInfo, async_address_resolvers, i->client->async_address_resolvers, i); 46 47 assert(i->client->n_objects >= 1); 48 i->client->n_objects--; 49 50 avahi_free(i); 51 } 52 53 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) { 54 AsyncAddressResolverInfo *i = userdata; 55 DBusMessage *reply; 56 57 assert(r); 58 assert(i); 59 60 reply = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, avahi_dbus_map_resolve_signal_name(event)); 61 62 if (!reply) { 63 avahi_log_error("Failed allocate message"); 64 return; 65 } 66 67 if (event == AVAHI_RESOLVER_FOUND) { 68 char t[AVAHI_ADDRESS_STR_MAX], *pt = t; 69 int32_t i_interface, i_protocol, i_aprotocol; 70 uint32_t u_flags; 71 72 assert(address); 73 assert(host_name); 74 avahi_address_snprint(t, sizeof(t), address); 75 76 i_interface = (int32_t) interface; 77 i_protocol = (int32_t) protocol; 78 i_aprotocol = (int32_t) address->proto; 79 u_flags = (uint32_t) flags; 80 81 dbus_message_append_args( 82 reply, 83 DBUS_TYPE_INT32, &i_interface, 84 DBUS_TYPE_INT32, &i_protocol, 85 DBUS_TYPE_INT32, &i_aprotocol, 86 DBUS_TYPE_STRING, &pt, 87 DBUS_TYPE_STRING, &host_name, 88 DBUS_TYPE_UINT32, &u_flags, 89 DBUS_TYPE_INVALID); 90 91 } else { 92 assert(event == AVAHI_RESOLVER_FAILURE); 93 avahi_dbus_append_server_error(reply); 94 } 95 96 dbus_message_set_destination(reply, i->client->name); 97 dbus_connection_send(server->bus, reply, NULL); 98 dbus_message_unref(reply); 99 } 100 101 DBusHandlerResult avahi_dbus_msg_async_address_resolver_impl(DBusConnection *c, DBusMessage *m, void *userdata) { 102 DBusError error; 103 AsyncAddressResolverInfo *i = userdata; 104 105 assert(c); 106 assert(m); 107 assert(i); 108 109 dbus_error_init(&error); 110 111 avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s", 112 dbus_message_get_interface(m), 113 dbus_message_get_path(m), 114 dbus_message_get_member(m)); 115 116 /* Introspection */ 117 if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect")) 118 return avahi_dbus_handle_introspect(c, m, "org.freedesktop.Avahi.AddressResolver.xml"); 119 120 /* Access control */ 121 if (strcmp(dbus_message_get_sender(m), i->client->name)) 122 return avahi_dbus_respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL); 123 124 if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Free")) { 125 126 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) { 127 avahi_log_warn("Error parsing AddressResolver::Free message"); 128 goto fail; 129 } 130 131 avahi_dbus_async_address_resolver_free(i); 132 return avahi_dbus_respond_ok(c, m); 133 } 134 135 avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m)); 136 137 fail: 138 if (dbus_error_is_set(&error)) 139 dbus_error_free(&error); 140 141 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; 142 } 143