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_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
55void 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
98DBusHandlerResult 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
134fail:
135    if (dbus_error_is_set(&error))
136        dbus_error_free(&error);
137
138    return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
139}
140