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 36void avahi_dbus_async_service_resolver_free(AsyncServiceResolverInfo *i) { 37 assert(i); 38 39 if (i->service_resolver) 40 avahi_s_service_resolver_free(i->service_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(AsyncServiceResolverInfo, async_service_resolvers, i->client->async_service_resolvers, i); 48 49 i->client->n_objects--; 50 assert(i->client->n_objects >= 0); 51 52 avahi_free(i); 53} 54 55void avahi_dbus_async_service_resolver_callback( 56 AvahiSServiceResolver *r, 57 AvahiIfIndex interface, 58 AvahiProtocol protocol, 59 AvahiResolverEvent event, 60 const char *name, 61 const char *type, 62 const char *domain, 63 const char *host_name, 64 const AvahiAddress *a, 65 uint16_t port, 66 AvahiStringList *txt, 67 AvahiLookupResultFlags flags, 68 void* userdata) { 69 70 AsyncServiceResolverInfo *i = userdata; 71 DBusMessage *reply; 72 73 assert(r); 74 assert(i); 75 76 reply = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, avahi_dbus_map_resolve_signal_name(event)); 77 78 if (event == AVAHI_RESOLVER_FOUND) { 79 char t[AVAHI_ADDRESS_STR_MAX], *pt = t; 80 int32_t i_interface, i_protocol, i_aprotocol; 81 uint32_t u_flags; 82 83 assert(host_name); 84 85/* avahi_log_debug(__FILE__": [%s] Successfully resolved service <%s.%s.%s>", i->path, name, type, domain); */ 86 87 if (a) 88 avahi_address_snprint(t, sizeof(t), a); 89 else 90 t[0] = 0; 91 92 if (!name) 93 name = ""; 94 95 if (avahi_dbus_is_our_own_service(i->client, interface, protocol, name, type, domain) > 0) 96 flags |= AVAHI_LOOKUP_RESULT_OUR_OWN; 97 98 i_interface = (int32_t) interface; 99 i_protocol = (int32_t) protocol; 100 if (a) 101 i_aprotocol = (int32_t) a->proto; 102 else 103 i_aprotocol = AVAHI_PROTO_UNSPEC; 104 u_flags = (uint32_t) flags; 105 106 dbus_message_append_args( 107 reply, 108 DBUS_TYPE_INT32, &i_interface, 109 DBUS_TYPE_INT32, &i_protocol, 110 DBUS_TYPE_STRING, &name, 111 DBUS_TYPE_STRING, &type, 112 DBUS_TYPE_STRING, &domain, 113 DBUS_TYPE_STRING, &host_name, 114 DBUS_TYPE_INT32, &i_aprotocol, 115 DBUS_TYPE_STRING, &pt, 116 DBUS_TYPE_UINT16, &port, 117 DBUS_TYPE_INVALID); 118 119 avahi_dbus_append_string_list(reply, txt); 120 121 dbus_message_append_args( 122 reply, 123 DBUS_TYPE_UINT32, &u_flags, 124 DBUS_TYPE_INVALID); 125 } else { 126 assert(event == AVAHI_RESOLVER_FAILURE); 127 avahi_dbus_append_server_error(reply); 128 } 129 130 dbus_message_set_destination(reply, i->client->name); 131 dbus_connection_send(server->bus, reply, NULL); 132 dbus_message_unref(reply); 133} 134 135DBusHandlerResult avahi_dbus_msg_async_service_resolver_impl(DBusConnection *c, DBusMessage *m, void *userdata) { 136 DBusError error; 137 AsyncServiceResolverInfo *i = userdata; 138 139 assert(c); 140 assert(m); 141 assert(i); 142 143 dbus_error_init(&error); 144 145 avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s", 146 dbus_message_get_interface(m), 147 dbus_message_get_path(m), 148 dbus_message_get_member(m)); 149 150 /* Introspection */ 151 if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect")) 152 return avahi_dbus_handle_introspect(c, m, "ServiceResolver.introspect"); 153 154 /* Access control */ 155 if (strcmp(dbus_message_get_sender(m), i->client->name)) 156 return avahi_dbus_respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL); 157 158 if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Free")) { 159 160 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) { 161 avahi_log_warn("Error parsing ServiceResolver::Free message"); 162 goto fail; 163 } 164 165 avahi_dbus_async_service_resolver_free(i); 166 return avahi_dbus_respond_ok(c, m); 167 } 168 169 avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m)); 170 171fail: 172 if (dbus_error_is_set(&error)) 173 dbus_error_free(&error); 174 175 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; 176} 177 178