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_record_browser_free(RecordBrowserInfo *i) {
37    assert(i);
38
39    if (i->record_browser)
40        avahi_s_record_browser_free(i->record_browser);
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(RecordBrowserInfo, record_browsers, i->client->record_browsers, i);
47
48    i->client->n_objects--;
49    assert(i->client->n_objects >= 0);
50
51    avahi_free(i);
52}
53
54DBusHandlerResult avahi_dbus_msg_record_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
55    DBusError error;
56    RecordBrowserInfo *i = userdata;
57
58    assert(c);
59    assert(m);
60    assert(i);
61
62    dbus_error_init(&error);
63
64    avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s",
65                    dbus_message_get_interface(m),
66                    dbus_message_get_path(m),
67                    dbus_message_get_member(m));
68
69    /* Introspection */
70    if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
71        return avahi_dbus_handle_introspect(c, m, "RecordBrowser.introspect");
72
73    /* Access control */
74    if (strcmp(dbus_message_get_sender(m), i->client->name))
75        return avahi_dbus_respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
76
77    if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "Free")) {
78
79        if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
80            avahi_log_warn("Error parsing RecordBrowser::Free message");
81            goto fail;
82        }
83
84        avahi_dbus_record_browser_free(i);
85        return avahi_dbus_respond_ok(c, m);
86
87    }
88
89    avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
90
91fail:
92    if (dbus_error_is_set(&error))
93        dbus_error_free(&error);
94
95    return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
96}
97
98void avahi_dbus_record_browser_callback(
99    AvahiSRecordBrowser *b,
100    AvahiIfIndex interface,
101    AvahiProtocol protocol,
102    AvahiBrowserEvent event,
103    AvahiRecord *record,
104    AvahiLookupResultFlags flags,
105    void* userdata) {
106
107    RecordBrowserInfo *i = userdata;
108    DBusMessage *m = NULL;
109    int32_t i_interface, i_protocol;
110    uint32_t u_flags;
111
112    assert(b);
113    assert(i);
114
115    i_interface = (int32_t) interface;
116    i_protocol = (int32_t) protocol;
117    u_flags = (uint32_t) flags;
118
119    m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, avahi_dbus_map_browse_signal_name(event));
120
121    if (event == AVAHI_BROWSER_NEW || event == AVAHI_BROWSER_REMOVE) {
122        uint8_t rdata[0xFFFF];
123        size_t size;
124        assert(record);
125
126        if (!(dbus_message_append_args(
127                  m,
128                  DBUS_TYPE_INT32, &i_interface,
129                  DBUS_TYPE_INT32, &i_protocol,
130                  DBUS_TYPE_STRING, &record->key->name,
131                  DBUS_TYPE_UINT16, &record->key->clazz,
132                  DBUS_TYPE_UINT16, &record->key->type,
133                  DBUS_TYPE_INVALID)))
134            goto fail;
135
136        if ((size = avahi_rdata_serialize(record, rdata, sizeof(rdata))) == (size_t) -1 ||
137            avahi_dbus_append_rdata(m, rdata, size) < 0) {
138            avahi_log_debug(__FILE__": Failed to append rdata");
139            dbus_message_unref(m);
140            return;
141        }
142
143        dbus_message_append_args(
144            m,
145            DBUS_TYPE_UINT32, &u_flags,
146            DBUS_TYPE_INVALID);
147
148    } else if (event == AVAHI_BROWSER_FAILURE)
149        avahi_dbus_append_server_error(m);
150
151    dbus_message_set_destination(m, i->client->name);
152    dbus_connection_send(server->bus, m, NULL);
153    dbus_message_unref(m);
154
155    return;
156
157fail:
158
159    if (m)
160        dbus_message_unref(m);
161}
162