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_host_name_resolver_free(AsyncHostNameResolverInfo *i) {
37    assert(i);
38
39    if (i->host_name_resolver)
40        avahi_s_host_name_resolver_free(i->host_name_resolver);
41
42    if (i->path) {
43        dbus_connection_unregister_object_path(server->bus, i->path);
44        avahi_free(i->path);
45    }
46    AVAHI_LLIST_REMOVE(AsyncHostNameResolverInfo, async_host_name_resolvers, i->client->async_host_name_resolvers, i);
47
48    i->client->n_objects--;
49    assert(i->client->n_objects >= 0);
50
51    avahi_free(i);
52}
53
54void avahi_dbus_async_host_name_resolver_callback(AvahiSHostNameResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const char *host_name, const AvahiAddress *a, AvahiLookupResultFlags flags, void* userdata) {
55    AsyncHostNameResolverInfo *i = userdata;
56    DBusMessage *reply;
57
58    assert(r);
59    assert(i);
60
61    reply = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, avahi_dbus_map_resolve_signal_name(event));
62
63    if (event == AVAHI_RESOLVER_FOUND) {
64        char t[AVAHI_ADDRESS_STR_MAX], *pt = t;
65        int32_t i_interface, i_protocol, i_aprotocol;
66        uint32_t u_flags;
67
68        assert(a);
69        assert(host_name);
70        avahi_address_snprint(t, sizeof(t), a);
71
72        i_interface = (int32_t) interface;
73        i_protocol = (int32_t) protocol;
74        i_aprotocol = (int32_t) a->proto;
75        u_flags = (uint32_t) flags;
76
77        dbus_message_append_args(
78            reply,
79            DBUS_TYPE_INT32, &i_interface,
80            DBUS_TYPE_INT32, &i_protocol,
81            DBUS_TYPE_STRING, &host_name,
82            DBUS_TYPE_INT32, &i_aprotocol,
83            DBUS_TYPE_STRING, &pt,
84            DBUS_TYPE_UINT32, &u_flags,
85            DBUS_TYPE_INVALID);
86    }  else {
87        assert(event == AVAHI_RESOLVER_FAILURE);
88        avahi_dbus_append_server_error(reply);
89    }
90
91    dbus_message_set_destination(reply, i->client->name);
92    dbus_connection_send(server->bus, reply, NULL);
93    dbus_message_unref(reply);
94}
95
96DBusHandlerResult avahi_dbus_msg_async_host_name_resolver_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
97    DBusError error;
98    AsyncHostNameResolverInfo *i = userdata;
99
100    assert(c);
101    assert(m);
102    assert(i);
103
104    dbus_error_init(&error);
105
106    avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s",
107                    dbus_message_get_interface(m),
108                    dbus_message_get_path(m),
109                    dbus_message_get_member(m));
110
111    /* Introspection */
112    if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
113        return avahi_dbus_handle_introspect(c, m, "HostNameResolver.introspect");
114
115    /* Access control */
116    if (strcmp(dbus_message_get_sender(m), i->client->name))
117        return avahi_dbus_respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
118
119    if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Free")) {
120
121        if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
122            avahi_log_warn("Error parsing HostNameResolver::Free message");
123            goto fail;
124        }
125
126        avahi_dbus_async_host_name_resolver_free(i);
127        return avahi_dbus_respond_ok(c, m);
128    }
129
130    avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
131
132fail:
133    if (dbus_error_is_set(&error))
134        dbus_error_free(&error);
135
136    return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
137}
138
139