+ *usec = yl > yr ? yl - yr : 0;
+ return 0;
+ }
+
+ case SINK_MESSAGE_REQUEST:
+
+ pa_assert(offset > 0);
+ u->requested_bytes += (size_t) offset;
+
+ if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
+ send_data(u);
+
+ return 0;
+
+ case SINK_MESSAGE_REMOTE_SUSPEND:
+
+ stream_suspend_within_thread(u, !!PA_PTR_TO_UINT(data));
+ return 0;
+
+ case SINK_MESSAGE_UPDATE_LATENCY: {
+ pa_usec_t y;
+
+ y = pa_bytes_to_usec((uint64_t) u->counter, &u->sink->sample_spec);
+
+ if (y > (pa_usec_t) offset)
+ y -= (pa_usec_t) offset;
+ else
+ y = 0;
+
+ pa_smoother_put(u->smoother, pa_rtclock_now(), y);
+
+ /* We can access this freely here, since the main thread is waiting for us */
+ u->thread_transport_usec = u->transport_usec;
+
+ return 0;
+ }
+
+ case SINK_MESSAGE_POST:
+
+ /* OK, This might be a bit confusing. This message is
+ * delivered to us from the main context -- NOT from the
+ * IO thread context where the rest of the messages are
+ * dispatched. Yeah, ugly, but I am a lazy bastard. */
+
+ pa_pstream_send_memblock(u->pstream, u->channel, 0, PA_SEEK_RELATIVE, chunk);
+
+ u->counter_delta += (int64_t) chunk->length;
+
+ return 0;
+ }
+
+ return pa_sink_process_msg(o, code, data, offset, chunk);
+}
+
+/* Called from main context */
+static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
+ struct userdata *u;
+ pa_sink_assert_ref(s);
+ u = s->userdata;
+
+ switch ((pa_sink_state_t) state) {
+
+ case PA_SINK_SUSPENDED:
+ pa_assert(PA_SINK_IS_OPENED(s->state));
+ stream_cork(u, true);
+ break;
+
+ case PA_SINK_IDLE:
+ case PA_SINK_RUNNING:
+ if (s->state == PA_SINK_SUSPENDED)
+ stream_cork(u, false);
+ break;
+
+ case PA_SINK_UNLINKED:
+ case PA_SINK_INIT:
+ case PA_SINK_INVALID_STATE:
+ ;
+ }
+
+ return 0;
+}
+
+#else
+
+/* This function is called from IO context -- except when it is not. */
+static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+ struct userdata *u = PA_SOURCE(o)->userdata;
+
+ switch (code) {
+
+ case PA_SOURCE_MESSAGE_SET_STATE: {
+ int r;
+
+ if ((r = pa_source_process_msg(o, code, data, offset, chunk)) >= 0)
+ stream_cork_within_thread(u, u->source->thread_info.state == PA_SOURCE_SUSPENDED);
+
+ return r;
+ }
+
+ case PA_SOURCE_MESSAGE_GET_LATENCY: {
+ pa_usec_t yr, yl, *usec = data;
+
+ yl = pa_bytes_to_usec((uint64_t) u->counter, &PA_SOURCE(o)->sample_spec);
+ yr = pa_smoother_get(u->smoother, pa_rtclock_now());
+
+ *usec = yr > yl ? yr - yl : 0;
+ return 0;
+ }
+
+ case SOURCE_MESSAGE_POST: {
+ pa_memchunk c;
+
+ pa_mcalign_push(u->mcalign, chunk);
+
+ while (pa_mcalign_pop(u->mcalign, &c) >= 0) {
+
+ if (PA_SOURCE_IS_OPENED(u->source->thread_info.state))
+ pa_source_post(u->source, &c);
+
+ pa_memblock_unref(c.memblock);
+
+ u->counter += (int64_t) c.length;
+ }
+
+ return 0;
+ }
+
+ case SOURCE_MESSAGE_REMOTE_SUSPEND:
+
+ stream_suspend_within_thread(u, !!PA_PTR_TO_UINT(data));
+ return 0;
+
+ case SOURCE_MESSAGE_UPDATE_LATENCY: {
+ pa_usec_t y;
+
+ y = pa_bytes_to_usec((uint64_t) u->counter, &u->source->sample_spec);
+ y += (pa_usec_t) offset;
+
+ pa_smoother_put(u->smoother, pa_rtclock_now(), y);
+
+ /* We can access this freely here, since the main thread is waiting for us */
+ u->thread_transport_usec = u->transport_usec;
+
+ return 0;
+ }
+ }
+
+ return pa_source_process_msg(o, code, data, offset, chunk);
+}
+
+/* Called from main context */
+static int source_set_state(pa_source *s, pa_source_state_t state) {
+ struct userdata *u;
+ pa_source_assert_ref(s);
+ u = s->userdata;
+
+ switch ((pa_source_state_t) state) {
+
+ case PA_SOURCE_SUSPENDED:
+ pa_assert(PA_SOURCE_IS_OPENED(s->state));
+ stream_cork(u, true);
+ break;
+
+ case PA_SOURCE_IDLE:
+ case PA_SOURCE_RUNNING:
+ if (s->state == PA_SOURCE_SUSPENDED)
+ stream_cork(u, false);
+ break;
+
+ case PA_SOURCE_UNLINKED:
+ case PA_SOURCE_INIT:
+ case PA_SINK_INVALID_STATE:
+ ;
+ }
+
+ return 0;
+}
+
+#endif
+
+static void thread_func(void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(u);
+
+ pa_log_debug("Thread starting up");
+
+ pa_thread_mq_install(&u->thread_mq);
+
+ for (;;) {
+ int ret;
+
+#ifdef TUNNEL_SINK
+ if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
+ pa_sink_process_rewind(u->sink, 0);
+#endif
+
+ if ((ret = pa_rtpoll_run(u->rtpoll, true)) < 0)
+ goto fail;
+
+ if (ret == 0)
+ goto finish;
+ }
+
+fail:
+ /* If this was no regular exit from the loop we have to continue
+ * processing messages until we received PA_MESSAGE_SHUTDOWN */
+ pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
+ pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
+
+finish:
+ pa_log_debug("Thread shutting down");
+}
+
+#ifdef TUNNEL_SINK
+/* Called from main context */
+static void command_request(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ uint32_t bytes, channel;
+
+ pa_assert(pd);
+ pa_assert(command == PA_COMMAND_REQUEST);
+ pa_assert(t);
+ pa_assert(u);
+ pa_assert(u->pdispatch == pd);
+
+ if (pa_tagstruct_getu32(t, &channel) < 0 ||
+ pa_tagstruct_getu32(t, &bytes) < 0) {
+ pa_log("Invalid protocol reply");
+ goto fail;
+ }
+
+ if (channel != u->channel) {
+ pa_log("Received data for invalid channel");
+ goto fail;
+ }
+
+ pa_asyncmsgq_post(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_REQUEST, NULL, bytes, NULL, NULL);
+ return;
+
+fail:
+ pa_module_unload_request(u->module, true);
+}
+
+#endif
+
+/* Called from main context */
+static void stream_get_latency_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ pa_usec_t sink_usec, source_usec;
+ bool playing;
+ int64_t write_index, read_index;
+ struct timeval local, remote, now;
+ pa_sample_spec *ss;
+ int64_t delay;
+
+ pa_assert(pd);
+ pa_assert(u);
+
+ if (command != PA_COMMAND_REPLY) {
+ if (command == PA_COMMAND_ERROR)
+ pa_log("Failed to get latency.");
+ else
+ pa_log("Protocol error.");
+ goto fail;
+ }
+
+ if (pa_tagstruct_get_usec(t, &sink_usec) < 0 ||
+ pa_tagstruct_get_usec(t, &source_usec) < 0 ||
+ pa_tagstruct_get_boolean(t, &playing) < 0 ||
+ pa_tagstruct_get_timeval(t, &local) < 0 ||
+ pa_tagstruct_get_timeval(t, &remote) < 0 ||
+ pa_tagstruct_gets64(t, &write_index) < 0 ||
+ pa_tagstruct_gets64(t, &read_index) < 0) {
+ pa_log("Invalid reply.");
+ goto fail;
+ }
+
+#ifdef TUNNEL_SINK
+ if (u->version >= 13) {
+ uint64_t underrun_for = 0, playing_for = 0;
+
+ if (pa_tagstruct_getu64(t, &underrun_for) < 0 ||
+ pa_tagstruct_getu64(t, &playing_for) < 0) {
+ pa_log("Invalid reply.");
+ goto fail;
+ }
+ }
+#endif
+
+ if (!pa_tagstruct_eof(t)) {
+ pa_log("Invalid reply.");
+ goto fail;
+ }
+
+ if (tag < u->ignore_latency_before) {
+ return;
+ }
+
+ pa_gettimeofday(&now);
+
+ /* Calculate transport usec */
+ if (pa_timeval_cmp(&local, &remote) < 0 && pa_timeval_cmp(&remote, &now)) {
+ /* local and remote seem to have synchronized clocks */
+#ifdef TUNNEL_SINK
+ u->transport_usec = pa_timeval_diff(&remote, &local);
+#else
+ u->transport_usec = pa_timeval_diff(&now, &remote);
+#endif
+ } else
+ u->transport_usec = pa_timeval_diff(&now, &local)/2;
+
+ /* First, take the device's delay */
+#ifdef TUNNEL_SINK
+ delay = (int64_t) sink_usec;
+ ss = &u->sink->sample_spec;
+#else
+ delay = (int64_t) source_usec;
+ ss = &u->source->sample_spec;
+#endif
+
+ /* Add the length of our server-side buffer */
+ if (write_index >= read_index)
+ delay += (int64_t) pa_bytes_to_usec((uint64_t) (write_index-read_index), ss);
+ else
+ delay -= (int64_t) pa_bytes_to_usec((uint64_t) (read_index-write_index), ss);
+
+ /* Our measurements are already out of date, hence correct by the *
+ * transport latency */
+#ifdef TUNNEL_SINK
+ delay -= (int64_t) u->transport_usec;
+#else
+ delay += (int64_t) u->transport_usec;
+#endif
+
+ /* Now correct by what we have have read/written since we requested the update */
+#ifdef TUNNEL_SINK
+ delay += (int64_t) pa_bytes_to_usec((uint64_t) u->counter_delta, ss);
+#else
+ delay -= (int64_t) pa_bytes_to_usec((uint64_t) u->counter_delta, ss);
+#endif
+
+#ifdef TUNNEL_SINK
+ pa_asyncmsgq_send(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_UPDATE_LATENCY, 0, delay, NULL);
+#else
+ pa_asyncmsgq_send(u->source->asyncmsgq, PA_MSGOBJECT(u->source), SOURCE_MESSAGE_UPDATE_LATENCY, 0, delay, NULL);
+#endif
+
+ return;
+
+fail:
+
+ pa_module_unload_request(u->module, true);
+}
+
+/* Called from main context */
+static void request_latency(struct userdata *u) {
+ pa_tagstruct *t;
+ struct timeval now;
+ uint32_t tag;
+ pa_assert(u);
+
+ t = pa_tagstruct_new(NULL, 0);
+#ifdef TUNNEL_SINK
+ pa_tagstruct_putu32(t, PA_COMMAND_GET_PLAYBACK_LATENCY);
+#else
+ pa_tagstruct_putu32(t, PA_COMMAND_GET_RECORD_LATENCY);
+#endif
+ pa_tagstruct_putu32(t, tag = u->ctag++);
+ pa_tagstruct_putu32(t, u->channel);
+
+ pa_tagstruct_put_timeval(t, pa_gettimeofday(&now));
+
+ pa_pstream_send_tagstruct(u->pstream, t);
+ pa_pdispatch_register_reply(u->pdispatch, tag, DEFAULT_TIMEOUT, stream_get_latency_callback, u, NULL);
+
+ u->ignore_latency_before = tag;
+ u->counter_delta = 0;
+}
+
+/* Called from main context */
+static void timeout_callback(pa_mainloop_api *m, pa_time_event *e, const struct timeval *t, void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(m);
+ pa_assert(e);
+ pa_assert(u);
+
+ request_latency(u);
+
+ pa_core_rttime_restart(u->core, e, pa_rtclock_now() + LATENCY_INTERVAL);
+}
+
+/* Called from main context */
+static void update_description(struct userdata *u) {
+ char *d;
+ char un[128], hn[128];
+ pa_tagstruct *t;
+
+ pa_assert(u);
+
+ if (!u->server_fqdn || !u->user_name || !u->device_description)
+ return;
+
+ d = pa_sprintf_malloc("%s on %s@%s", u->device_description, u->user_name, u->server_fqdn);
+
+#ifdef TUNNEL_SINK
+ pa_sink_set_description(u->sink, d);
+ pa_proplist_sets(u->sink->proplist, "tunnel.remote.user", u->user_name);
+ pa_proplist_sets(u->sink->proplist, "tunnel.remote.fqdn", u->server_fqdn);
+ pa_proplist_sets(u->sink->proplist, "tunnel.remote.description", u->device_description);
+#else
+ pa_source_set_description(u->source, d);
+ pa_proplist_sets(u->source->proplist, "tunnel.remote.user", u->user_name);
+ pa_proplist_sets(u->source->proplist, "tunnel.remote.fqdn", u->server_fqdn);
+ pa_proplist_sets(u->source->proplist, "tunnel.remote.description", u->device_description);
+#endif
+
+ pa_xfree(d);
+
+ d = pa_sprintf_malloc("%s for %s@%s", u->device_description,
+ pa_get_user_name(un, sizeof(un)),
+ pa_get_host_name(hn, sizeof(hn)));
+
+ t = pa_tagstruct_new(NULL, 0);
+#ifdef TUNNEL_SINK
+ pa_tagstruct_putu32(t, PA_COMMAND_SET_PLAYBACK_STREAM_NAME);
+#else
+ pa_tagstruct_putu32(t, PA_COMMAND_SET_RECORD_STREAM_NAME);
+#endif
+ pa_tagstruct_putu32(t, u->ctag++);
+ pa_tagstruct_putu32(t, u->channel);
+ pa_tagstruct_puts(t, d);
+ pa_pstream_send_tagstruct(u->pstream, t);
+
+ pa_xfree(d);
+}
+
+/* Called from main context */
+static void server_info_cb(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ pa_sample_spec ss;
+ pa_channel_map cm;
+ const char *server_name, *server_version, *user_name, *host_name, *default_sink_name, *default_source_name;
+ uint32_t cookie;
+
+ pa_assert(pd);
+ pa_assert(u);
+
+ if (command != PA_COMMAND_REPLY) {
+ if (command == PA_COMMAND_ERROR)
+ pa_log("Failed to get info.");
+ else
+ pa_log("Protocol error.");
+ goto fail;
+ }
+
+ if (pa_tagstruct_gets(t, &server_name) < 0 ||
+ pa_tagstruct_gets(t, &server_version) < 0 ||
+ pa_tagstruct_gets(t, &user_name) < 0 ||
+ pa_tagstruct_gets(t, &host_name) < 0 ||
+ pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
+ pa_tagstruct_gets(t, &default_sink_name) < 0 ||
+ pa_tagstruct_gets(t, &default_source_name) < 0 ||
+ pa_tagstruct_getu32(t, &cookie) < 0 ||
+ (u->version >= 15 && pa_tagstruct_get_channel_map(t, &cm) < 0)) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+
+ if (!pa_tagstruct_eof(t)) {
+ pa_log("Packet too long");
+ goto fail;
+ }
+
+ pa_xfree(u->server_fqdn);
+ u->server_fqdn = pa_xstrdup(host_name);
+
+ pa_xfree(u->user_name);
+ u->user_name = pa_xstrdup(user_name);
+
+ update_description(u);
+
+ return;
+
+fail:
+ pa_module_unload_request(u->module, true);
+}
+
+static int read_ports(struct userdata *u, pa_tagstruct *t) {
+ if (u->version >= 16) {
+ uint32_t n_ports;
+ const char *s;
+
+ if (pa_tagstruct_getu32(t, &n_ports)) {
+ pa_log("Parse failure");
+ return -PA_ERR_PROTOCOL;
+ }
+
+ for (uint32_t j = 0; j < n_ports; j++) {
+ uint32_t priority;
+
+ if (pa_tagstruct_gets(t, &s) < 0 || /* name */
+ pa_tagstruct_gets(t, &s) < 0 || /* description */
+ pa_tagstruct_getu32(t, &priority) < 0) {
+
+ pa_log("Parse failure");
+ return -PA_ERR_PROTOCOL;
+ }
+ if (u->version >= 24 && pa_tagstruct_getu32(t, &priority) < 0) { /* available */
+ pa_log("Parse failure");
+ return -PA_ERR_PROTOCOL;
+ }
+ }
+
+ if (pa_tagstruct_gets(t, &s) < 0) { /* active port */
+ pa_log("Parse failure");
+ return -PA_ERR_PROTOCOL;
+ }
+ }
+ return 0;
+}
+
+static int read_formats(struct userdata *u, pa_tagstruct *t) {
+ uint8_t n_formats;
+ pa_format_info *format;
+
+ if (pa_tagstruct_getu8(t, &n_formats) < 0) { /* no. of formats */
+ pa_log("Parse failure");
+ return -PA_ERR_PROTOCOL;
+ }
+
+ for (uint8_t j = 0; j < n_formats; j++) {
+ format = pa_format_info_new();
+ if (pa_tagstruct_get_format_info(t, format)) { /* format info */
+ pa_format_info_free(format);
+ pa_log("Parse failure");
+ return -PA_ERR_PROTOCOL;
+ }
+ pa_format_info_free(format);
+ }
+ return 0;
+}
+
+#ifdef TUNNEL_SINK
+
+/* Called from main context */
+static void sink_info_cb(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ uint32_t idx, owner_module, monitor_source, flags;
+ const char *name, *description, *monitor_source_name, *driver;
+ pa_sample_spec ss;
+ pa_channel_map cm;
+ pa_cvolume volume;
+ bool mute;
+ pa_usec_t latency;
+
+ pa_assert(pd);
+ pa_assert(u);
+
+ if (command != PA_COMMAND_REPLY) {
+ if (command == PA_COMMAND_ERROR)
+ pa_log("Failed to get info.");
+ else
+ pa_log("Protocol error.");
+ goto fail;
+ }
+
+ if (pa_tagstruct_getu32(t, &idx) < 0 ||
+ pa_tagstruct_gets(t, &name) < 0 ||
+ pa_tagstruct_gets(t, &description) < 0 ||
+ pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
+ pa_tagstruct_get_channel_map(t, &cm) < 0 ||
+ pa_tagstruct_getu32(t, &owner_module) < 0 ||
+ pa_tagstruct_get_cvolume(t, &volume) < 0 ||
+ pa_tagstruct_get_boolean(t, &mute) < 0 ||
+ pa_tagstruct_getu32(t, &monitor_source) < 0 ||
+ pa_tagstruct_gets(t, &monitor_source_name) < 0 ||
+ pa_tagstruct_get_usec(t, &latency) < 0 ||
+ pa_tagstruct_gets(t, &driver) < 0 ||
+ pa_tagstruct_getu32(t, &flags) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+
+ if (u->version >= 13) {
+ pa_usec_t configured_latency;
+
+ if (pa_tagstruct_get_proplist(t, NULL) < 0 ||
+ pa_tagstruct_get_usec(t, &configured_latency) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (u->version >= 15) {
+ pa_volume_t base_volume;
+ uint32_t state, n_volume_steps, card;
+
+ if (pa_tagstruct_get_volume(t, &base_volume) < 0 ||
+ pa_tagstruct_getu32(t, &state) < 0 ||
+ pa_tagstruct_getu32(t, &n_volume_steps) < 0 ||
+ pa_tagstruct_getu32(t, &card) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (read_ports(u, t) < 0)
+ goto fail;
+
+ if (u->version >= 21 && read_formats(u, t) < 0)
+ goto fail;
+
+ if (!pa_tagstruct_eof(t)) {
+ pa_log("Packet too long");
+ goto fail;
+ }
+
+ if (!u->sink_name || !pa_streq(name, u->sink_name))
+ return;
+
+ pa_xfree(u->device_description);
+ u->device_description = pa_xstrdup(description);
+
+ update_description(u);
+
+ return;
+
+fail:
+ pa_module_unload_request(u->module, true);
+}
+
+/* Called from main context */
+static void sink_input_info_cb(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ uint32_t idx, owner_module, client, sink;
+ pa_usec_t buffer_usec, sink_usec;
+ const char *name, *driver, *resample_method;
+ bool mute = false;
+ pa_sample_spec sample_spec;
+ pa_channel_map channel_map;
+ pa_cvolume volume;
+ bool b;
+
+ pa_assert(pd);
+ pa_assert(u);
+
+ if (command != PA_COMMAND_REPLY) {
+ if (command == PA_COMMAND_ERROR)
+ pa_log("Failed to get info.");
+ else
+ pa_log("Protocol error.");
+ goto fail;
+ }
+
+ if (pa_tagstruct_getu32(t, &idx) < 0 ||
+ pa_tagstruct_gets(t, &name) < 0 ||
+ pa_tagstruct_getu32(t, &owner_module) < 0 ||
+ pa_tagstruct_getu32(t, &client) < 0 ||
+ pa_tagstruct_getu32(t, &sink) < 0 ||
+ pa_tagstruct_get_sample_spec(t, &sample_spec) < 0 ||
+ pa_tagstruct_get_channel_map(t, &channel_map) < 0 ||
+ pa_tagstruct_get_cvolume(t, &volume) < 0 ||
+ pa_tagstruct_get_usec(t, &buffer_usec) < 0 ||
+ pa_tagstruct_get_usec(t, &sink_usec) < 0 ||
+ pa_tagstruct_gets(t, &resample_method) < 0 ||
+ pa_tagstruct_gets(t, &driver) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+
+ if (u->version >= 11) {
+ if (pa_tagstruct_get_boolean(t, &mute) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (u->version >= 13) {
+ if (pa_tagstruct_get_proplist(t, NULL) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (u->version >= 19) {
+ if (pa_tagstruct_get_boolean(t, &b) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (u->version >= 20) {
+ if (pa_tagstruct_get_boolean(t, &b) < 0 ||
+ pa_tagstruct_get_boolean(t, &b) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (u->version >= 21) {
+ pa_format_info *format = pa_format_info_new();
+
+ if (pa_tagstruct_get_format_info(t, format) < 0) {
+ pa_format_info_free(format);
+ pa_log("Parse failure");
+ goto fail;
+ }
+ pa_format_info_free(format);
+ }
+
+ if (!pa_tagstruct_eof(t)) {
+ pa_log("Packet too long");
+ goto fail;
+ }
+
+ if (idx != u->device_index)
+ return;
+
+ pa_assert(u->sink);
+
+ if ((u->version < 11 || !!mute == !!u->sink->muted) &&
+ pa_cvolume_equal(&volume, &u->sink->real_volume))
+ return;
+
+ pa_sink_volume_changed(u->sink, &volume);
+
+ if (u->version >= 11)
+ pa_sink_mute_changed(u->sink, mute);
+
+ return;
+
+fail:
+ pa_module_unload_request(u->module, true);
+}
+
+#else
+
+/* Called from main context */
+static void source_info_cb(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ uint32_t idx, owner_module, monitor_of_sink, flags;
+ const char *name, *description, *monitor_of_sink_name, *driver;
+ pa_sample_spec ss;
+ pa_channel_map cm;
+ pa_cvolume volume;
+ bool mute;
+ pa_usec_t latency, configured_latency;
+
+ pa_assert(pd);
+ pa_assert(u);
+
+ if (command != PA_COMMAND_REPLY) {
+ if (command == PA_COMMAND_ERROR)
+ pa_log("Failed to get info.");
+ else
+ pa_log("Protocol error.");
+ goto fail;
+ }
+
+ if (pa_tagstruct_getu32(t, &idx) < 0 ||
+ pa_tagstruct_gets(t, &name) < 0 ||
+ pa_tagstruct_gets(t, &description) < 0 ||
+ pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
+ pa_tagstruct_get_channel_map(t, &cm) < 0 ||
+ pa_tagstruct_getu32(t, &owner_module) < 0 ||
+ pa_tagstruct_get_cvolume(t, &volume) < 0 ||
+ pa_tagstruct_get_boolean(t, &mute) < 0 ||
+ pa_tagstruct_getu32(t, &monitor_of_sink) < 0 ||
+ pa_tagstruct_gets(t, &monitor_of_sink_name) < 0 ||
+ pa_tagstruct_get_usec(t, &latency) < 0 ||
+ pa_tagstruct_gets(t, &driver) < 0 ||
+ pa_tagstruct_getu32(t, &flags) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+
+ if (u->version >= 13) {
+ if (pa_tagstruct_get_proplist(t, NULL) < 0 ||
+ pa_tagstruct_get_usec(t, &configured_latency) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (u->version >= 15) {
+ pa_volume_t base_volume;
+ uint32_t state, n_volume_steps, card;
+
+ if (pa_tagstruct_get_volume(t, &base_volume) < 0 ||
+ pa_tagstruct_getu32(t, &state) < 0 ||
+ pa_tagstruct_getu32(t, &n_volume_steps) < 0 ||
+ pa_tagstruct_getu32(t, &card) < 0) {
+
+ pa_log("Parse failure");
+ goto fail;
+ }
+ }
+
+ if (read_ports(u, t) < 0)
+ goto fail;
+
+ if (u->version >= 22 && read_formats(u, t) < 0)
+ goto fail;
+
+ if (!pa_tagstruct_eof(t)) {
+ pa_log("Packet too long");
+ goto fail;
+ }
+
+ if (!u->source_name || !pa_streq(name, u->source_name))
+ return;
+
+ pa_xfree(u->device_description);
+ u->device_description = pa_xstrdup(description);
+
+ update_description(u);
+
+ return;
+
+fail:
+ pa_module_unload_request(u->module, true);
+}
+
+#endif
+
+/* Called from main context */
+static void request_info(struct userdata *u) {
+ pa_tagstruct *t;
+ uint32_t tag;
+ pa_assert(u);
+
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_GET_SERVER_INFO);
+ pa_tagstruct_putu32(t, tag = u->ctag++);
+ pa_pstream_send_tagstruct(u->pstream, t);
+ pa_pdispatch_register_reply(u->pdispatch, tag, DEFAULT_TIMEOUT, server_info_cb, u, NULL);
+
+#ifdef TUNNEL_SINK
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_GET_SINK_INPUT_INFO);
+ pa_tagstruct_putu32(t, tag = u->ctag++);
+ pa_tagstruct_putu32(t, u->device_index);
+ pa_pstream_send_tagstruct(u->pstream, t);
+ pa_pdispatch_register_reply(u->pdispatch, tag, DEFAULT_TIMEOUT, sink_input_info_cb, u, NULL);
+
+ if (u->sink_name) {
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_GET_SINK_INFO);
+ pa_tagstruct_putu32(t, tag = u->ctag++);
+ pa_tagstruct_putu32(t, PA_INVALID_INDEX);
+ pa_tagstruct_puts(t, u->sink_name);
+ pa_pstream_send_tagstruct(u->pstream, t);
+ pa_pdispatch_register_reply(u->pdispatch, tag, DEFAULT_TIMEOUT, sink_info_cb, u, NULL);
+ }
+#else
+ if (u->source_name) {
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_GET_SOURCE_INFO);
+ pa_tagstruct_putu32(t, tag = u->ctag++);
+ pa_tagstruct_putu32(t, PA_INVALID_INDEX);
+ pa_tagstruct_puts(t, u->source_name);
+ pa_pstream_send_tagstruct(u->pstream, t);
+ pa_pdispatch_register_reply(u->pdispatch, tag, DEFAULT_TIMEOUT, source_info_cb, u, NULL);
+ }
+#endif
+}
+
+/* Called from main context */
+static void command_subscribe_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ pa_subscription_event_type_t e;
+ uint32_t idx;
+
+ pa_assert(pd);
+ pa_assert(t);
+ pa_assert(u);
+ pa_assert(command == PA_COMMAND_SUBSCRIBE_EVENT);
+
+ if (pa_tagstruct_getu32(t, &e) < 0 ||
+ pa_tagstruct_getu32(t, &idx) < 0) {
+ pa_log("Invalid protocol reply");
+ pa_module_unload_request(u->module, true);
+ return;
+ }
+
+ if (e != (PA_SUBSCRIPTION_EVENT_SERVER|PA_SUBSCRIPTION_EVENT_CHANGE) &&
+#ifdef TUNNEL_SINK
+ e != (PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE) &&
+ e != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE)
+#else
+ e != (PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE)
+#endif
+ )
+ return;
+
+ request_info(u);
+}
+
+/* Called from main context */
+static void start_subscribe(struct userdata *u) {
+ pa_tagstruct *t;
+ pa_assert(u);
+
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE);
+ pa_tagstruct_putu32(t, u->ctag++);
+ pa_tagstruct_putu32(t, PA_SUBSCRIPTION_MASK_SERVER|
+#ifdef TUNNEL_SINK
+ PA_SUBSCRIPTION_MASK_SINK_INPUT|PA_SUBSCRIPTION_MASK_SINK
+#else
+ PA_SUBSCRIPTION_MASK_SOURCE
+#endif
+ );
+
+ pa_pstream_send_tagstruct(u->pstream, t);
+}
+
+/* Called from main context */
+static void create_stream_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+#ifdef TUNNEL_SINK
+ uint32_t bytes;
+#endif
+
+ pa_assert(pd);
+ pa_assert(u);
+ pa_assert(u->pdispatch == pd);
+
+ if (command != PA_COMMAND_REPLY) {
+ if (command == PA_COMMAND_ERROR)
+ pa_log("Failed to create stream.");
+ else
+ pa_log("Protocol error.");
+ goto fail;
+ }
+
+ if (pa_tagstruct_getu32(t, &u->channel) < 0 ||
+ pa_tagstruct_getu32(t, &u->device_index) < 0
+#ifdef TUNNEL_SINK
+ || pa_tagstruct_getu32(t, &bytes) < 0
+#endif
+ )
+ goto parse_error;
+
+ if (u->version >= 9) {
+#ifdef TUNNEL_SINK
+ if (pa_tagstruct_getu32(t, &u->maxlength) < 0 ||
+ pa_tagstruct_getu32(t, &u->tlength) < 0 ||
+ pa_tagstruct_getu32(t, &u->prebuf) < 0 ||
+ pa_tagstruct_getu32(t, &u->minreq) < 0)
+ goto parse_error;
+#else
+ if (pa_tagstruct_getu32(t, &u->maxlength) < 0 ||
+ pa_tagstruct_getu32(t, &u->fragsize) < 0)
+ goto parse_error;
+#endif
+ }
+
+ if (u->version >= 12) {
+ pa_sample_spec ss;
+ pa_channel_map cm;
+ uint32_t device_index;
+ const char *dn;
+ bool suspended;
+
+ if (pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
+ pa_tagstruct_get_channel_map(t, &cm) < 0 ||
+ pa_tagstruct_getu32(t, &device_index) < 0 ||
+ pa_tagstruct_gets(t, &dn) < 0 ||
+ pa_tagstruct_get_boolean(t, &suspended) < 0)
+ goto parse_error;
+
+#ifdef TUNNEL_SINK
+ pa_xfree(u->sink_name);
+ u->sink_name = pa_xstrdup(dn);
+#else
+ pa_xfree(u->source_name);
+ u->source_name = pa_xstrdup(dn);
+#endif
+ }
+
+ if (u->version >= 13) {
+ pa_usec_t usec;
+
+ if (pa_tagstruct_get_usec(t, &usec) < 0)
+ goto parse_error;
+
+/* #ifdef TUNNEL_SINK */
+/* pa_sink_set_latency_range(u->sink, usec + MIN_NETWORK_LATENCY_USEC, 0); */
+/* #else */
+/* pa_source_set_latency_range(u->source, usec + MIN_NETWORK_LATENCY_USEC, 0); */
+/* #endif */
+ }
+
+ if (u->version >= 21) {
+ pa_format_info *format = pa_format_info_new();
+
+ if (pa_tagstruct_get_format_info(t, format) < 0) {
+ pa_format_info_free(format);
+ goto parse_error;
+ }
+
+ pa_format_info_free(format);
+ }
+
+ if (!pa_tagstruct_eof(t))
+ goto parse_error;
+
+ start_subscribe(u);
+ request_info(u);
+
+ pa_assert(!u->time_event);
+ u->time_event = pa_core_rttime_new(u->core, pa_rtclock_now() + LATENCY_INTERVAL, timeout_callback, u);
+
+ request_latency(u);
+
+ pa_log_debug("Stream created.");
+
+#ifdef TUNNEL_SINK
+ pa_asyncmsgq_post(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_REQUEST, NULL, bytes, NULL, NULL);
+#endif
+
+ return;
+
+parse_error:
+ pa_log("Invalid reply. (Create stream)");
+
+fail:
+ pa_module_unload_request(u->module, true);
+
+}
+
+/* Called from main context */
+static void setup_complete_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+ struct userdata *u = userdata;
+ pa_tagstruct *reply;
+ char name[256], un[128], hn[128];
+ pa_cvolume volume;
+
+ pa_assert(pd);
+ pa_assert(u);
+ pa_assert(u->pdispatch == pd);
+
+ if (command != PA_COMMAND_REPLY ||
+ pa_tagstruct_getu32(t, &u->version) < 0 ||
+ !pa_tagstruct_eof(t)) {
+
+ if (command == PA_COMMAND_ERROR)
+ pa_log("Failed to authenticate");
+ else
+ pa_log("Protocol error.");
+
+ goto fail;
+ }
+
+ /* Minimum supported protocol version */
+ if (u->version < 8) {
+ pa_log("Incompatible protocol version");
+ goto fail;
+ }
+
+ /* Starting with protocol version 13 the MSB of the version tag
+ reflects if shm is enabled for this connection or not. We don't
+ support SHM here at all, so we just ignore this. */
+
+ if (u->version >= 13)
+ u->version &= 0x7FFFFFFFU;
+
+ pa_log_debug("Protocol version: remote %u, local %u", u->version, PA_PROTOCOL_VERSION);
+
+#ifdef TUNNEL_SINK
+ pa_proplist_setf(u->sink->proplist, "tunnel.remote_version", "%u", u->version);
+ pa_sink_update_proplist(u->sink, 0, NULL);
+
+ pa_snprintf(name, sizeof(name), "%s for %s@%s",
+ u->sink_name,
+ pa_get_user_name(un, sizeof(un)),
+ pa_get_host_name(hn, sizeof(hn)));
+#else
+ pa_proplist_setf(u->source->proplist, "tunnel.remote_version", "%u", u->version);
+ pa_source_update_proplist(u->source, 0, NULL);
+
+ pa_snprintf(name, sizeof(name), "%s for %s@%s",
+ u->source_name,
+ pa_get_user_name(un, sizeof(un)),
+ pa_get_host_name(hn, sizeof(hn)));
+#endif
+
+ reply = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(reply, PA_COMMAND_SET_CLIENT_NAME);
+ pa_tagstruct_putu32(reply, u->ctag++);
+
+ if (u->version >= 13) {
+ pa_proplist *pl;
+ pl = pa_proplist_new();
+ pa_proplist_sets(pl, PA_PROP_APPLICATION_ID, "org.PulseAudio.PulseAudio");
+ pa_proplist_sets(pl, PA_PROP_APPLICATION_VERSION, PACKAGE_VERSION);
+ pa_init_proplist(pl);
+ pa_tagstruct_put_proplist(reply, pl);
+ pa_proplist_free(pl);
+ } else
+ pa_tagstruct_puts(reply, "PulseAudio");
+
+ pa_pstream_send_tagstruct(u->pstream, reply);
+ /* We ignore the server's reply here */
+
+ reply = pa_tagstruct_new(NULL, 0);
+
+ if (u->version < 13)
+ /* Only for older PA versions we need to fill in the maxlength */
+ u->maxlength = 4*1024*1024;
+
+#ifdef TUNNEL_SINK
+ u->tlength = (uint32_t) pa_usec_to_bytes(PA_USEC_PER_MSEC * DEFAULT_TLENGTH_MSEC, &u->sink->sample_spec);
+ u->minreq = (uint32_t) pa_usec_to_bytes(PA_USEC_PER_MSEC * DEFAULT_MINREQ_MSEC, &u->sink->sample_spec);
+ u->prebuf = u->tlength;
+#else
+ u->fragsize = (uint32_t) pa_usec_to_bytes(PA_USEC_PER_MSEC * DEFAULT_FRAGSIZE_MSEC, &u->source->sample_spec);
+#endif
+
+#ifdef TUNNEL_SINK
+ pa_tagstruct_putu32(reply, PA_COMMAND_CREATE_PLAYBACK_STREAM);
+ pa_tagstruct_putu32(reply, tag = u->ctag++);
+
+ if (u->version < 13)
+ pa_tagstruct_puts(reply, name);
+
+ pa_tagstruct_put_sample_spec(reply, &u->sink->sample_spec);
+ pa_tagstruct_put_channel_map(reply, &u->sink->channel_map);
+ pa_tagstruct_putu32(reply, PA_INVALID_INDEX);
+ pa_tagstruct_puts(reply, u->sink_name);
+ pa_tagstruct_putu32(reply, u->maxlength);
+ pa_tagstruct_put_boolean(reply, !PA_SINK_IS_OPENED(pa_sink_get_state(u->sink)));
+ pa_tagstruct_putu32(reply, u->tlength);
+ pa_tagstruct_putu32(reply, u->prebuf);
+ pa_tagstruct_putu32(reply, u->minreq);
+ pa_tagstruct_putu32(reply, 0);
+ pa_cvolume_reset(&volume, u->sink->sample_spec.channels);
+ pa_tagstruct_put_cvolume(reply, &volume);
+#else
+ pa_tagstruct_putu32(reply, PA_COMMAND_CREATE_RECORD_STREAM);
+ pa_tagstruct_putu32(reply, tag = u->ctag++);
+
+ if (u->version < 13)
+ pa_tagstruct_puts(reply, name);
+
+ pa_tagstruct_put_sample_spec(reply, &u->source->sample_spec);
+ pa_tagstruct_put_channel_map(reply, &u->source->channel_map);
+ pa_tagstruct_putu32(reply, PA_INVALID_INDEX);
+ pa_tagstruct_puts(reply, u->source_name);
+ pa_tagstruct_putu32(reply, u->maxlength);
+ pa_tagstruct_put_boolean(reply, !PA_SOURCE_IS_OPENED(pa_source_get_state(u->source)));
+ pa_tagstruct_putu32(reply, u->fragsize);
+#endif
+
+ if (u->version >= 12) {
+ pa_tagstruct_put_boolean(reply, false); /* no_remap */
+ pa_tagstruct_put_boolean(reply, false); /* no_remix */
+ pa_tagstruct_put_boolean(reply, false); /* fix_format */
+ pa_tagstruct_put_boolean(reply, false); /* fix_rate */
+ pa_tagstruct_put_boolean(reply, false); /* fix_channels */
+ pa_tagstruct_put_boolean(reply, true); /* no_move */
+ pa_tagstruct_put_boolean(reply, false); /* variable_rate */
+ }
+
+ if (u->version >= 13) {
+ pa_proplist *pl;
+
+ pa_tagstruct_put_boolean(reply, false); /* start muted/peak detect*/
+ pa_tagstruct_put_boolean(reply, true); /* adjust_latency */
+
+ pl = pa_proplist_new();
+ pa_proplist_sets(pl, PA_PROP_MEDIA_NAME, name);
+ pa_proplist_sets(pl, PA_PROP_MEDIA_ROLE, "abstract");
+ pa_tagstruct_put_proplist(reply, pl);
+ pa_proplist_free(pl);
+
+#ifndef TUNNEL_SINK
+ pa_tagstruct_putu32(reply, PA_INVALID_INDEX); /* direct on input */
+#endif
+ }
+
+ if (u->version >= 14) {
+#ifdef TUNNEL_SINK
+ pa_tagstruct_put_boolean(reply, false); /* volume_set */
+#endif
+ pa_tagstruct_put_boolean(reply, true); /* early rquests */
+ }
+
+ if (u->version >= 15) {
+#ifdef TUNNEL_SINK
+ pa_tagstruct_put_boolean(reply, false); /* muted_set */
+#endif
+ pa_tagstruct_put_boolean(reply, false); /* don't inhibit auto suspend */
+ pa_tagstruct_put_boolean(reply, false); /* fail on suspend */
+ }
+
+#ifdef TUNNEL_SINK
+ if (u->version >= 17)
+ pa_tagstruct_put_boolean(reply, false); /* relative volume */
+
+ if (u->version >= 18)
+ pa_tagstruct_put_boolean(reply, false); /* passthrough stream */
+#endif
+
+#ifdef TUNNEL_SINK
+ if (u->version >= 21) {
+ /* We're not using the extended API, so n_formats = 0 and that's that */
+ pa_tagstruct_putu8(reply, 0);
+ }
+#else
+ if (u->version >= 22) {
+ /* We're not using the extended API, so n_formats = 0 and that's that */
+ pa_tagstruct_putu8(reply, 0);
+ pa_cvolume_reset(&volume, u->source->sample_spec.channels);
+ pa_tagstruct_put_cvolume(reply, &volume);
+ pa_tagstruct_put_boolean(reply, false); /* muted */
+ pa_tagstruct_put_boolean(reply, false); /* volume_set */
+ pa_tagstruct_put_boolean(reply, false); /* muted_set */
+ pa_tagstruct_put_boolean(reply, false); /* relative volume */
+ pa_tagstruct_put_boolean(reply, false); /* passthrough stream */
+ }
+#endif
+
+ pa_pstream_send_tagstruct(u->pstream, reply);
+ pa_pdispatch_register_reply(u->pdispatch, tag, DEFAULT_TIMEOUT, create_stream_callback, u, NULL);
+
+ pa_log_debug("Connection authenticated, creating stream ...");
+
+ return;
+
+fail:
+ pa_module_unload_request(u->module, true);
+}
+
+/* Called from main context */
+static void pstream_die_callback(pa_pstream *p, void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(p);
+ pa_assert(u);
+
+ pa_log_warn("Stream died.");
+ pa_module_unload_request(u->module, true);
+}
+
+/* Called from main context */
+static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(p);
+ pa_assert(packet);
+ pa_assert(u);
+
+ if (pa_pdispatch_run(u->pdispatch, packet, creds, u) < 0) {
+ pa_log("Invalid packet");
+ pa_module_unload_request(u->module, true);
+ return;
+ }
+}
+
+#ifndef TUNNEL_SINK
+/* Called from main context */
+static void pstream_memblock_callback(pa_pstream *p, uint32_t channel, int64_t offset, pa_seek_mode_t seek, const pa_memchunk *chunk, void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(p);
+ pa_assert(chunk);
+ pa_assert(u);
+
+ if (channel != u->channel) {
+ pa_log("Received memory block on bad channel.");
+ pa_module_unload_request(u->module, true);
+ return;
+ }
+
+ pa_asyncmsgq_send(u->source->asyncmsgq, PA_MSGOBJECT(u->source), SOURCE_MESSAGE_POST, PA_UINT_TO_PTR(seek), offset, chunk);
+
+ u->counter_delta += (int64_t) chunk->length;
+}
+#endif
+
+/* Called from main context */
+static void on_connection(pa_socket_client *sc, pa_iochannel *io, void *userdata) {
+ struct userdata *u = userdata;
+ pa_tagstruct *t;
+ uint32_t tag;
+
+ pa_assert(sc);
+ pa_assert(u);
+ pa_assert(u->client == sc);
+
+ pa_socket_client_unref(u->client);
+ u->client = NULL;
+
+ if (!io) {
+ pa_log("Connection failed: %s", pa_cstrerror(errno));
+ pa_module_unload_request(u->module, true);
+ return;
+ }
+
+ u->pstream = pa_pstream_new(u->core->mainloop, io, u->core->mempool);
+ u->pdispatch = pa_pdispatch_new(u->core->mainloop, true, command_table, PA_COMMAND_MAX);
+
+ pa_pstream_set_die_callback(u->pstream, pstream_die_callback, u);
+ pa_pstream_set_receive_packet_callback(u->pstream, pstream_packet_callback, u);
+#ifndef TUNNEL_SINK
+ pa_pstream_set_receive_memblock_callback(u->pstream, pstream_memblock_callback, u);
+#endif
+
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_AUTH);
+ pa_tagstruct_putu32(t, tag = u->ctag++);
+ pa_tagstruct_putu32(t, PA_PROTOCOL_VERSION);
+
+ pa_tagstruct_put_arbitrary(t, pa_auth_cookie_read(u->auth_cookie, PA_NATIVE_COOKIE_LENGTH), PA_NATIVE_COOKIE_LENGTH);
+
+#ifdef HAVE_CREDS
+{
+ pa_creds ucred;
+
+ if (pa_iochannel_creds_supported(io))
+ pa_iochannel_creds_enable(io);
+
+ ucred.uid = getuid();
+ ucred.gid = getgid();
+
+ pa_pstream_send_tagstruct_with_creds(u->pstream, t, &ucred);
+}
+#else
+ pa_pstream_send_tagstruct(u->pstream, t);
+#endif
+
+ pa_pdispatch_register_reply(u->pdispatch, tag, DEFAULT_TIMEOUT, setup_complete_callback, u, NULL);
+
+ pa_log_debug("Connection established, authenticating ...");
+}
+
+#ifdef TUNNEL_SINK
+
+/* Called from main context */
+static void sink_set_volume(pa_sink *sink) {
+ struct userdata *u;
+ pa_tagstruct *t;
+
+ pa_assert(sink);
+ u = sink->userdata;
+ pa_assert(u);
+
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_SET_SINK_INPUT_VOLUME);
+ pa_tagstruct_putu32(t, u->ctag++);
+ pa_tagstruct_putu32(t, u->device_index);
+ pa_tagstruct_put_cvolume(t, &sink->real_volume);
+ pa_pstream_send_tagstruct(u->pstream, t);
+}
+
+/* Called from main context */
+static void sink_set_mute(pa_sink *sink) {
+ struct userdata *u;
+ pa_tagstruct *t;
+
+ pa_assert(sink);
+ u = sink->userdata;
+ pa_assert(u);
+
+ if (u->version < 11)
+ return;
+
+ t = pa_tagstruct_new(NULL, 0);
+ pa_tagstruct_putu32(t, PA_COMMAND_SET_SINK_INPUT_MUTE);
+ pa_tagstruct_putu32(t, u->ctag++);
+ pa_tagstruct_putu32(t, u->device_index);
+ pa_tagstruct_put_boolean(t, !!sink->muted);
+ pa_pstream_send_tagstruct(u->pstream, t);
+}
+
+#endif
+
+int pa__init(pa_module*m) {
+ pa_modargs *ma = NULL;
+ struct userdata *u = NULL;
+ char *server = NULL;
+ pa_strlist *server_list = NULL;
+ pa_sample_spec ss;
+ pa_channel_map map;
+ char *dn = NULL;
+#ifdef TUNNEL_SINK
+ pa_sink_new_data data;
+#else
+ pa_source_new_data data;
+#endif
+ bool automatic;
+#ifdef HAVE_X11
+ xcb_connection_t *xcb = NULL;
+#endif
+ const char *cookie_path;
+
+ pa_assert(m);
+
+ if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+ pa_log("Failed to parse module arguments");
+ goto fail;
+ }
+
+ m->userdata = u = pa_xnew0(struct userdata, 1);
+ u->core = m->core;
+ u->module = m;
+ u->client = NULL;
+ u->pdispatch = NULL;
+ u->pstream = NULL;
+ u->server_name = NULL;
+#ifdef TUNNEL_SINK
+ u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));;
+ u->sink = NULL;
+ u->requested_bytes = 0;
+#else
+ u->source_name = pa_xstrdup(pa_modargs_get_value(ma, "source", NULL));;
+ u->source = NULL;