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
34void avahi_dbus_domain_browser_free(DomainBrowserInfo *i) {
35    assert(i);
36
37    if (i->domain_browser)
38        avahi_s_domain_browser_free(i->domain_browser);
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(DomainBrowserInfo, domain_browsers, i->client->domain_browsers, i);
46
47    assert(i->client->n_objects >= 1);
48    i->client->n_objects--;
49
50    avahi_free(i);
51}
52
53DBusHandlerResult avahi_dbus_msg_domain_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
54    DBusError error;
55    DomainBrowserInfo *i = userdata;
56
57    assert(c);
58    assert(m);
59    assert(i);
60
61    dbus_error_init(&error);
62
63    avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s",
64                    dbus_message_get_interface(m),
65                    dbus_message_get_path(m),
66                    dbus_message_get_member(m));
67
68    /* Introspection */
69    if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
70        return avahi_dbus_handle_introspect(c, m, "org.freedesktop.Avahi.DomainBrowser.xml");
71
72    /* Access control */
73    if (strcmp(dbus_message_get_sender(m), i->client->name))
74        return avahi_dbus_respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
75
76    if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Free")) {
77
78        if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
79            avahi_log_warn("Error parsing DomainBrowser::Free message");
80            goto fail;
81        }
82
83        avahi_dbus_domain_browser_free(i);
84        return avahi_dbus_respond_ok(c, m);
85
86    }
87
88    avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
89
90fail:
91    if (dbus_error_is_set(&error))
92        dbus_error_free(&error);
93
94    return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
95}
96
97void avahi_dbus_domain_browser_callback(AvahiSDomainBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const char *domain, AvahiLookupResultFlags flags,  void* userdata) {
98    DomainBrowserInfo *i = userdata;
99    DBusMessage *m;
100    int32_t i_interface, i_protocol;
101    uint32_t u_flags;
102
103    assert(b);
104    assert(i);
105
106    i_interface = (int32_t) interface;
107    i_protocol = (int32_t) protocol;
108    u_flags = (uint32_t) flags;
109
110    m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, avahi_dbus_map_browse_signal_name(event));
111
112    if (!m) {
113        avahi_log_error("Failed allocate message");
114        return;
115    }
116
117    if (event == AVAHI_BROWSER_NEW || event == AVAHI_BROWSER_REMOVE) {
118        assert(domain);
119        dbus_message_append_args(
120            m,
121            DBUS_TYPE_INT32, &i_interface,
122            DBUS_TYPE_INT32, &i_protocol,
123            DBUS_TYPE_STRING, &domain,
124            DBUS_TYPE_UINT32, &u_flags,
125            DBUS_TYPE_INVALID);
126    } else if (event == AVAHI_BROWSER_FAILURE)
127        avahi_dbus_append_server_error(m);
128
129    dbus_message_set_destination(m, i->client->name);
130    dbus_connection_send(server->bus, m, NULL);
131    dbus_message_unref(m);
132}
133