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[pulseaudio] / src / pulsecore / protocol-native.c
1 /* $Id$ */
2
3 /***
4 This file is part of PulseAudio.
5
6 Copyright 2004-2006 Lennart Poettering
7 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
8
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
13
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 USA.
23 ***/
24
25 #ifdef HAVE_CONFIG_H
26 #include <config.h>
27 #endif
28
29 #include <string.h>
30 #include <stdio.h>
31 #include <assert.h>
32 #include <stdlib.h>
33 #include <unistd.h>
34
35 #include <pulse/timeval.h>
36 #include <pulse/version.h>
37 #include <pulse/utf8.h>
38 #include <pulse/util.h>
39 #include <pulse/xmalloc.h>
40
41 #include <pulsecore/native-common.h>
42 #include <pulsecore/packet.h>
43 #include <pulsecore/client.h>
44 #include <pulsecore/source-output.h>
45 #include <pulsecore/sink-input.h>
46 #include <pulsecore/pstream.h>
47 #include <pulsecore/tagstruct.h>
48 #include <pulsecore/pdispatch.h>
49 #include <pulsecore/pstream-util.h>
50 #include <pulsecore/authkey.h>
51 #include <pulsecore/namereg.h>
52 #include <pulsecore/core-scache.h>
53 #include <pulsecore/core-subscribe.h>
54 #include <pulsecore/log.h>
55 #include <pulsecore/autoload.h>
56 #include <pulsecore/authkey-prop.h>
57 #include <pulsecore/strlist.h>
58 #include <pulsecore/props.h>
59 #include <pulsecore/sample-util.h>
60 #include <pulsecore/llist.h>
61 #include <pulsecore/creds.h>
62 #include <pulsecore/core-util.h>
63 #include <pulsecore/ipacl.h>
64
65 #include "protocol-native.h"
66
67 /* Kick a client if it doesn't authenticate within this time */
68 #define AUTH_TIMEOUT 60
69
70 /* Don't accept more connection than this */
71 #define MAX_CONNECTIONS 64
72
73 #define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */
74
75 struct connection;
76 struct pa_protocol_native;
77
78 struct record_stream {
79 struct connection *connection;
80 uint32_t index;
81 pa_source_output *source_output;
82 pa_memblockq *memblockq;
83 size_t fragment_size;
84 };
85
86 struct playback_stream {
87 int type;
88 struct connection *connection;
89 uint32_t index;
90 pa_sink_input *sink_input;
91 pa_memblockq *memblockq;
92 size_t requested_bytes;
93 int drain_request;
94 uint32_t drain_tag;
95 uint32_t syncid;
96 int underrun;
97
98 /* Sync group members */
99 PA_LLIST_FIELDS(struct playback_stream);
100 };
101
102 struct upload_stream {
103 int type;
104 struct connection *connection;
105 uint32_t index;
106 pa_memchunk memchunk;
107 size_t length;
108 char *name;
109 pa_sample_spec sample_spec;
110 pa_channel_map channel_map;
111 };
112
113 struct output_stream {
114 int type;
115 };
116
117 enum {
118 UPLOAD_STREAM,
119 PLAYBACK_STREAM
120 };
121
122 struct connection {
123 int authorized;
124 uint32_t version;
125 pa_protocol_native *protocol;
126 pa_client *client;
127 pa_pstream *pstream;
128 pa_pdispatch *pdispatch;
129 pa_idxset *record_streams, *output_streams;
130 uint32_t rrobin_index;
131 pa_subscription *subscription;
132 pa_time_event *auth_timeout_event;
133 };
134
135 struct pa_protocol_native {
136 pa_module *module;
137 int public;
138 pa_core *core;
139 pa_socket_server *server;
140 pa_idxset *connections;
141 uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH];
142 int auth_cookie_in_property;
143 #ifdef HAVE_CREDS
144 char *auth_group;
145 #endif
146 pa_ip_acl *auth_ip_acl;
147 };
148
149 static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk);
150 static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length);
151 static void sink_input_kill_cb(pa_sink_input *i);
152 static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i);
153
154 static void request_bytes(struct playback_stream*s);
155
156 static void source_output_kill_cb(pa_source_output *o);
157 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk);
158 static pa_usec_t source_output_get_latency_cb(pa_source_output *o);
159
160 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
161 static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
162 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
163 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
164 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
165 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
166 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
167 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
168 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
169 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
170 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
171 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
172 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
173 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
174 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
175 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
176 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
177 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
178 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
179 static void command_set_volume(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
180 static void command_set_mute(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
181 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
182 static void command_flush_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
183 static void command_trigger_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
184 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
185 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
186 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
187 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
188 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
189 static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
190 static void command_remove_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
191 static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
192 static void command_get_autoload_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
193 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
194 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
195 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
196
197 static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
198 [PA_COMMAND_ERROR] = NULL,
199 [PA_COMMAND_TIMEOUT] = NULL,
200 [PA_COMMAND_REPLY] = NULL,
201 [PA_COMMAND_CREATE_PLAYBACK_STREAM] = command_create_playback_stream,
202 [PA_COMMAND_DELETE_PLAYBACK_STREAM] = command_delete_stream,
203 [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = command_drain_playback_stream,
204 [PA_COMMAND_CREATE_RECORD_STREAM] = command_create_record_stream,
205 [PA_COMMAND_DELETE_RECORD_STREAM] = command_delete_stream,
206 [PA_COMMAND_AUTH] = command_auth,
207 [PA_COMMAND_REQUEST] = NULL,
208 [PA_COMMAND_EXIT] = command_exit,
209 [PA_COMMAND_SET_CLIENT_NAME] = command_set_client_name,
210 [PA_COMMAND_LOOKUP_SINK] = command_lookup,
211 [PA_COMMAND_LOOKUP_SOURCE] = command_lookup,
212 [PA_COMMAND_STAT] = command_stat,
213 [PA_COMMAND_GET_PLAYBACK_LATENCY] = command_get_playback_latency,
214 [PA_COMMAND_GET_RECORD_LATENCY] = command_get_record_latency,
215 [PA_COMMAND_CREATE_UPLOAD_STREAM] = command_create_upload_stream,
216 [PA_COMMAND_DELETE_UPLOAD_STREAM] = command_delete_stream,
217 [PA_COMMAND_FINISH_UPLOAD_STREAM] = command_finish_upload_stream,
218 [PA_COMMAND_PLAY_SAMPLE] = command_play_sample,
219 [PA_COMMAND_REMOVE_SAMPLE] = command_remove_sample,
220 [PA_COMMAND_GET_SINK_INFO] = command_get_info,
221 [PA_COMMAND_GET_SOURCE_INFO] = command_get_info,
222 [PA_COMMAND_GET_CLIENT_INFO] = command_get_info,
223 [PA_COMMAND_GET_MODULE_INFO] = command_get_info,
224 [PA_COMMAND_GET_SINK_INPUT_INFO] = command_get_info,
225 [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = command_get_info,
226 [PA_COMMAND_GET_SAMPLE_INFO] = command_get_info,
227 [PA_COMMAND_GET_SINK_INFO_LIST] = command_get_info_list,
228 [PA_COMMAND_GET_SOURCE_INFO_LIST] = command_get_info_list,
229 [PA_COMMAND_GET_MODULE_INFO_LIST] = command_get_info_list,
230 [PA_COMMAND_GET_CLIENT_INFO_LIST] = command_get_info_list,
231 [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = command_get_info_list,
232 [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = command_get_info_list,
233 [PA_COMMAND_GET_SAMPLE_INFO_LIST] = command_get_info_list,
234 [PA_COMMAND_GET_SERVER_INFO] = command_get_server_info,
235 [PA_COMMAND_SUBSCRIBE] = command_subscribe,
236
237 [PA_COMMAND_SET_SINK_VOLUME] = command_set_volume,
238 [PA_COMMAND_SET_SINK_INPUT_VOLUME] = command_set_volume,
239 [PA_COMMAND_SET_SOURCE_VOLUME] = command_set_volume,
240
241 [PA_COMMAND_SET_SINK_MUTE] = command_set_mute,
242 [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute,
243
244 [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream,
245 [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_flush_playback_stream,
246 [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_prebuf_playback_stream,
247 [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_prebuf_playback_stream,
248
249 [PA_COMMAND_CORK_RECORD_STREAM] = command_cork_record_stream,
250 [PA_COMMAND_FLUSH_RECORD_STREAM] = command_flush_record_stream,
251
252 [PA_COMMAND_SET_DEFAULT_SINK] = command_set_default_sink_or_source,
253 [PA_COMMAND_SET_DEFAULT_SOURCE] = command_set_default_sink_or_source,
254 [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = command_set_stream_name,
255 [PA_COMMAND_SET_RECORD_STREAM_NAME] = command_set_stream_name,
256 [PA_COMMAND_KILL_CLIENT] = command_kill,
257 [PA_COMMAND_KILL_SINK_INPUT] = command_kill,
258 [PA_COMMAND_KILL_SOURCE_OUTPUT] = command_kill,
259 [PA_COMMAND_LOAD_MODULE] = command_load_module,
260 [PA_COMMAND_UNLOAD_MODULE] = command_unload_module,
261 [PA_COMMAND_GET_AUTOLOAD_INFO] = command_get_autoload_info,
262 [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = command_get_autoload_info_list,
263 [PA_COMMAND_ADD_AUTOLOAD] = command_add_autoload,
264 [PA_COMMAND_REMOVE_AUTOLOAD] = command_remove_autoload,
265
266 [PA_COMMAND_MOVE_SINK_INPUT] = command_move_stream,
267 [PA_COMMAND_MOVE_SOURCE_OUTPUT] = command_move_stream
268 };
269
270 /* structure management */
271
272 static struct upload_stream* upload_stream_new(
273 struct connection *c,
274 const pa_sample_spec *ss,
275 const pa_channel_map *map,
276 const char *name, size_t length) {
277
278 struct upload_stream *s;
279 assert(c && ss && name && length);
280
281 s = pa_xnew(struct upload_stream, 1);
282 s->type = UPLOAD_STREAM;
283 s->connection = c;
284 s->sample_spec = *ss;
285 s->channel_map = *map;
286 s->name = pa_xstrdup(name);
287
288 s->memchunk.memblock = NULL;
289 s->memchunk.index = 0;
290 s->memchunk.length = 0;
291
292 s->length = length;
293
294 pa_idxset_put(c->output_streams, s, &s->index);
295 return s;
296 }
297
298 static void upload_stream_free(struct upload_stream *o) {
299 assert(o && o->connection);
300
301 pa_idxset_remove_by_data(o->connection->output_streams, o, NULL);
302
303 pa_xfree(o->name);
304
305 if (o->memchunk.memblock)
306 pa_memblock_unref(o->memchunk.memblock);
307
308 pa_xfree(o);
309 }
310
311 static struct record_stream* record_stream_new(
312 struct connection *c,
313 pa_source *source,
314 const pa_sample_spec *ss,
315 const pa_channel_map *map,
316 const char *name,
317 size_t maxlength,
318 size_t fragment_size) {
319
320 struct record_stream *s;
321 pa_source_output *source_output;
322 size_t base;
323 pa_source_output_new_data data;
324
325 assert(c && ss && name && maxlength);
326
327 pa_source_output_new_data_init(&data);
328 data.source = source;
329 data.driver = __FILE__;
330 data.name = name;
331 pa_source_output_new_data_set_sample_spec(&data, ss);
332 pa_source_output_new_data_set_channel_map(&data, map);
333 data.module = c->protocol->module;
334 data.client = c->client;
335
336 if (!(source_output = pa_source_output_new(c->protocol->core, &data, 0)))
337 return NULL;
338
339 s = pa_xnew(struct record_stream, 1);
340 s->connection = c;
341 s->source_output = source_output;
342 s->source_output->push = source_output_push_cb;
343 s->source_output->kill = source_output_kill_cb;
344 s->source_output->get_latency = source_output_get_latency_cb;
345 s->source_output->userdata = s;
346
347 s->memblockq = pa_memblockq_new(
348 0,
349 maxlength,
350 0,
351 base = pa_frame_size(ss),
352 1,
353 0,
354 NULL);
355 assert(s->memblockq);
356
357 s->fragment_size = (fragment_size/base)*base;
358 if (!s->fragment_size)
359 s->fragment_size = base;
360
361 pa_idxset_put(c->record_streams, s, &s->index);
362 return s;
363 }
364
365 static void record_stream_free(struct record_stream* r) {
366 assert(r && r->connection);
367
368 pa_idxset_remove_by_data(r->connection->record_streams, r, NULL);
369 pa_source_output_disconnect(r->source_output);
370 pa_source_output_unref(r->source_output);
371 pa_memblockq_free(r->memblockq);
372 pa_xfree(r);
373 }
374
375 static struct playback_stream* playback_stream_new(
376 struct connection *c,
377 pa_sink *sink,
378 const pa_sample_spec *ss,
379 const pa_channel_map *map,
380 const char *name,
381 size_t maxlength,
382 size_t tlength,
383 size_t prebuf,
384 size_t minreq,
385 pa_cvolume *volume,
386 uint32_t syncid) {
387
388 struct playback_stream *s, *ssync;
389 pa_sink_input *sink_input;
390 pa_memblock *silence;
391 uint32_t idx;
392 int64_t start_index;
393 pa_sink_input_new_data data;
394
395 assert(c && ss && name && maxlength);
396
397 /* Find syncid group */
398 for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) {
399
400 if (ssync->type != PLAYBACK_STREAM)
401 continue;
402
403 if (ssync->syncid == syncid)
404 break;
405 }
406
407 /* Synced streams must connect to the same sink */
408 if (ssync)
409 sink = ssync->sink_input->sink;
410
411 pa_sink_input_new_data_init(&data);
412 data.sink = sink;
413 data.driver = __FILE__;
414 data.name = name;
415 pa_sink_input_new_data_set_sample_spec(&data, ss);
416 pa_sink_input_new_data_set_channel_map(&data, map);
417 pa_sink_input_new_data_set_volume(&data, volume);
418 data.module = c->protocol->module;
419 data.client = c->client;
420
421 if (!(sink_input = pa_sink_input_new(c->protocol->core, &data, 0)))
422 return NULL;
423
424 s = pa_xnew(struct playback_stream, 1);
425 s->type = PLAYBACK_STREAM;
426 s->connection = c;
427 s->syncid = syncid;
428 s->sink_input = sink_input;
429 s->underrun = 1;
430
431 s->sink_input->peek = sink_input_peek_cb;
432 s->sink_input->drop = sink_input_drop_cb;
433 s->sink_input->kill = sink_input_kill_cb;
434 s->sink_input->get_latency = sink_input_get_latency_cb;
435 s->sink_input->userdata = s;
436
437 if (ssync) {
438 /* Sync id found, now find head of list */
439 PA_LLIST_FIND_HEAD(struct playback_stream, ssync, &ssync);
440
441 /* Prepend ourselves */
442 PA_LLIST_PREPEND(struct playback_stream, ssync, s);
443
444 /* Set our start index to the current read index of the other grozp member(s) */
445 assert(ssync->next);
446 start_index = pa_memblockq_get_read_index(ssync->next->memblockq);
447 } else {
448 /* This ia a new sync group */
449 PA_LLIST_INIT(struct playback_stream, s);
450 start_index = 0;
451 }
452
453 silence = pa_silence_memblock_new(c->protocol->core->mempool, ss, 0);
454
455 s->memblockq = pa_memblockq_new(
456 start_index,
457 maxlength,
458 tlength,
459 pa_frame_size(ss),
460 prebuf,
461 minreq,
462 silence);
463
464 pa_memblock_unref(silence);
465
466 s->requested_bytes = 0;
467 s->drain_request = 0;
468
469 pa_idxset_put(c->output_streams, s, &s->index);
470
471 return s;
472 }
473
474 static void playback_stream_free(struct playback_stream* p) {
475 struct playback_stream *head;
476 assert(p && p->connection);
477
478 if (p->drain_request)
479 pa_pstream_send_error(p->connection->pstream, p->drain_tag, PA_ERR_NOENTITY);
480
481 PA_LLIST_FIND_HEAD(struct playback_stream, p, &head);
482 PA_LLIST_REMOVE(struct playback_stream, head, p);
483
484 pa_idxset_remove_by_data(p->connection->output_streams, p, NULL);
485 pa_sink_input_disconnect(p->sink_input);
486 pa_sink_input_unref(p->sink_input);
487 pa_memblockq_free(p->memblockq);
488 pa_xfree(p);
489 }
490
491 static void connection_free(struct connection *c) {
492 struct record_stream *r;
493 struct output_stream *o;
494 assert(c && c->protocol);
495
496 pa_idxset_remove_by_data(c->protocol->connections, c, NULL);
497 while ((r = pa_idxset_first(c->record_streams, NULL)))
498 record_stream_free(r);
499 pa_idxset_free(c->record_streams, NULL, NULL);
500
501 while ((o = pa_idxset_first(c->output_streams, NULL)))
502 if (o->type == PLAYBACK_STREAM)
503 playback_stream_free((struct playback_stream*) o);
504 else
505 upload_stream_free((struct upload_stream*) o);
506 pa_idxset_free(c->output_streams, NULL, NULL);
507
508 pa_pdispatch_unref(c->pdispatch);
509 pa_pstream_close(c->pstream);
510 pa_pstream_unref(c->pstream);
511 pa_client_free(c->client);
512
513 if (c->subscription)
514 pa_subscription_free(c->subscription);
515
516 if (c->auth_timeout_event)
517 c->protocol->core->mainloop->time_free(c->auth_timeout_event);
518
519 pa_xfree(c);
520 }
521
522 static void request_bytes(struct playback_stream *s) {
523 pa_tagstruct *t;
524 size_t l;
525 assert(s);
526
527 if (!(l = pa_memblockq_missing(s->memblockq)))
528 return;
529
530 if (l <= s->requested_bytes)
531 return;
532
533 l -= s->requested_bytes;
534
535 if (l < pa_memblockq_get_minreq(s->memblockq))
536 return;
537
538 s->requested_bytes += l;
539
540 t = pa_tagstruct_new(NULL, 0);
541 assert(t);
542 pa_tagstruct_putu32(t, PA_COMMAND_REQUEST);
543 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
544 pa_tagstruct_putu32(t, s->index);
545 pa_tagstruct_putu32(t, l);
546 pa_pstream_send_tagstruct(s->connection->pstream, t);
547
548 /* pa_log("Requesting %u bytes", l); */
549 }
550
551 static void send_memblock(struct connection *c) {
552 uint32_t start;
553 struct record_stream *r;
554
555 start = PA_IDXSET_INVALID;
556 for (;;) {
557 pa_memchunk chunk;
558
559 if (!(r = pa_idxset_rrobin(c->record_streams, &c->rrobin_index)))
560 return;
561
562 if (start == PA_IDXSET_INVALID)
563 start = c->rrobin_index;
564 else if (start == c->rrobin_index)
565 return;
566
567 if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) {
568 pa_memchunk schunk = chunk;
569
570 if (schunk.length > r->fragment_size)
571 schunk.length = r->fragment_size;
572
573 pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk);
574 pa_memblockq_drop(r->memblockq, &chunk, schunk.length);
575 pa_memblock_unref(schunk.memblock);
576
577 return;
578 }
579 }
580 }
581
582 static void send_playback_stream_killed(struct playback_stream *p) {
583 pa_tagstruct *t;
584 assert(p);
585
586 t = pa_tagstruct_new(NULL, 0);
587 pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED);
588 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
589 pa_tagstruct_putu32(t, p->index);
590 pa_pstream_send_tagstruct(p->connection->pstream, t);
591 }
592
593 static void send_record_stream_killed(struct record_stream *r) {
594 pa_tagstruct *t;
595 assert(r);
596
597 t = pa_tagstruct_new(NULL, 0);
598 pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED);
599 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
600 pa_tagstruct_putu32(t, r->index);
601 pa_pstream_send_tagstruct(r->connection->pstream, t);
602 }
603
604 /*** sinkinput callbacks ***/
605
606 static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
607 struct playback_stream *s;
608 assert(i && i->userdata && chunk);
609 s = i->userdata;
610
611 if (pa_memblockq_get_length(s->memblockq) <= 0 && !s->underrun) {
612 pa_tagstruct *t;
613
614 /* Report that we're empty */
615
616 t = pa_tagstruct_new(NULL, 0);
617 pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW);
618 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
619 pa_tagstruct_putu32(t, s->index);
620 pa_pstream_send_tagstruct(s->connection->pstream, t);
621
622 s->underrun = 1;
623 }
624
625 if (pa_memblockq_peek(s->memblockq, chunk) < 0) {
626 /* pa_log("peek: failure"); */
627 return -1;
628 }
629
630 /* pa_log("peek: %u", chunk->length); */
631
632 return 0;
633 }
634
635 static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) {
636 struct playback_stream *s;
637 assert(i && i->userdata && length);
638 s = i->userdata;
639
640 pa_memblockq_drop(s->memblockq, chunk, length);
641
642 request_bytes(s);
643
644 if (s->drain_request && !pa_memblockq_is_readable(s->memblockq)) {
645 pa_pstream_send_simple_ack(s->connection->pstream, s->drain_tag);
646 s->drain_request = 0;
647 }
648
649 /* pa_log("after_drop: %u %u", pa_memblockq_get_length(s->memblockq), pa_memblockq_is_readable(s->memblockq)); */
650 }
651
652 static void sink_input_kill_cb(pa_sink_input *i) {
653 assert(i && i->userdata);
654 send_playback_stream_killed((struct playback_stream *) i->userdata);
655 playback_stream_free((struct playback_stream *) i->userdata);
656 }
657
658 static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) {
659 struct playback_stream *s;
660 assert(i && i->userdata);
661 s = i->userdata;
662
663 /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/
664
665 return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &s->sink_input->sample_spec);
666 }
667
668 /*** source_output callbacks ***/
669
670 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
671 struct record_stream *s;
672 assert(o && o->userdata && chunk);
673 s = o->userdata;
674
675 if (pa_memblockq_push_align(s->memblockq, chunk) < 0) {
676 pa_log_warn("Failed to push data into output queue.");
677 return;
678 }
679
680 if (!pa_pstream_is_pending(s->connection->pstream))
681 send_memblock(s->connection);
682 }
683
684 static void source_output_kill_cb(pa_source_output *o) {
685 assert(o && o->userdata);
686 send_record_stream_killed((struct record_stream *) o->userdata);
687 record_stream_free((struct record_stream *) o->userdata);
688 }
689
690 static pa_usec_t source_output_get_latency_cb(pa_source_output *o) {
691 struct record_stream *s;
692 assert(o && o->userdata);
693 s = o->userdata;
694
695 /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/
696
697 return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec);
698 }
699
700 /*** pdispatch callbacks ***/
701
702 static void protocol_error(struct connection *c) {
703 pa_log("protocol error, kicking client");
704 connection_free(c);
705 }
706
707 #define CHECK_VALIDITY(pstream, expression, tag, error) do { \
708 if (!(expression)) { \
709 pa_pstream_send_error((pstream), (tag), (error)); \
710 return; \
711 } \
712 } while(0);
713
714 static pa_tagstruct *reply_new(uint32_t tag) {
715 pa_tagstruct *reply;
716
717 reply = pa_tagstruct_new(NULL, 0);
718 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
719 pa_tagstruct_putu32(reply, tag);
720 return reply;
721 }
722
723 static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
724 struct connection *c = userdata;
725 struct playback_stream *s;
726 uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid;
727 const char *name, *sink_name;
728 pa_sample_spec ss;
729 pa_channel_map map;
730 pa_tagstruct *reply;
731 pa_sink *sink = NULL;
732 pa_cvolume volume;
733 int corked;
734
735 assert(c && t && c->protocol && c->protocol->core);
736
737 if (pa_tagstruct_get(
738 t,
739 PA_TAG_STRING, &name,
740 PA_TAG_SAMPLE_SPEC, &ss,
741 PA_TAG_CHANNEL_MAP, &map,
742 PA_TAG_U32, &sink_index,
743 PA_TAG_STRING, &sink_name,
744 PA_TAG_U32, &maxlength,
745 PA_TAG_BOOLEAN, &corked,
746 PA_TAG_U32, &tlength,
747 PA_TAG_U32, &prebuf,
748 PA_TAG_U32, &minreq,
749 PA_TAG_U32, &syncid,
750 PA_TAG_CVOLUME, &volume,
751 PA_TAG_INVALID) < 0 ||
752 !pa_tagstruct_eof(t) ||
753 !name) {
754 protocol_error(c);
755 return;
756 }
757
758 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
759 CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
760 CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
761 CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
762 CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
763 CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
764 CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID);
765 CHECK_VALIDITY(c->pstream, maxlength > 0 && maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID);
766 CHECK_VALIDITY(c->pstream, maxlength >= pa_frame_size(&ss), tag, PA_ERR_INVALID);
767
768 if (sink_index != PA_INVALID_INDEX) {
769 sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
770 CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
771 } else if (sink_name) {
772 sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
773 CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
774 }
775
776 s = playback_stream_new(c, sink, &ss, &map, name, maxlength, tlength, prebuf, minreq, &volume, syncid);
777 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
778
779 pa_sink_input_cork(s->sink_input, corked);
780
781 reply = reply_new(tag);
782 pa_tagstruct_putu32(reply, s->index);
783 assert(s->sink_input);
784 pa_tagstruct_putu32(reply, s->sink_input->index);
785 pa_tagstruct_putu32(reply, s->requested_bytes = pa_memblockq_missing(s->memblockq));
786
787 if (c->version >= 9) {
788 /* Since 0.9 we support sending the buffer metrics back to the client */
789
790 pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq));
791 pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_tlength(s->memblockq));
792 pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_prebuf(s->memblockq));
793 pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_minreq(s->memblockq));
794 }
795
796 pa_pstream_send_tagstruct(c->pstream, reply);
797 request_bytes(s);
798 }
799
800 static void command_delete_stream(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
801 struct connection *c = userdata;
802 uint32_t channel;
803 assert(c && t);
804
805 if (pa_tagstruct_getu32(t, &channel) < 0 ||
806 !pa_tagstruct_eof(t)) {
807 protocol_error(c);
808 return;
809 }
810
811 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
812
813 if (command == PA_COMMAND_DELETE_PLAYBACK_STREAM) {
814 struct playback_stream *s;
815 if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != PLAYBACK_STREAM)) {
816 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
817 return;
818 }
819
820 playback_stream_free(s);
821 } else if (command == PA_COMMAND_DELETE_RECORD_STREAM) {
822 struct record_stream *s;
823 if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
824 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
825 return;
826 }
827
828 record_stream_free(s);
829 } else {
830 struct upload_stream *s;
831 assert(command == PA_COMMAND_DELETE_UPLOAD_STREAM);
832 if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) {
833 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
834 return;
835 }
836
837 upload_stream_free(s);
838 }
839
840 pa_pstream_send_simple_ack(c->pstream, tag);
841 }
842
843 static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
844 struct connection *c = userdata;
845 struct record_stream *s;
846 uint32_t maxlength, fragment_size;
847 uint32_t source_index;
848 const char *name, *source_name;
849 pa_sample_spec ss;
850 pa_channel_map map;
851 pa_tagstruct *reply;
852 pa_source *source = NULL;
853 int corked;
854 assert(c && t && c->protocol && c->protocol->core);
855
856 if (pa_tagstruct_gets(t, &name) < 0 ||
857 pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
858 pa_tagstruct_get_channel_map(t, &map) < 0 ||
859 pa_tagstruct_getu32(t, &source_index) < 0 ||
860 pa_tagstruct_gets(t, &source_name) < 0 ||
861 pa_tagstruct_getu32(t, &maxlength) < 0 ||
862 pa_tagstruct_get_boolean(t, &corked) < 0 ||
863 pa_tagstruct_getu32(t, &fragment_size) < 0 ||
864 !pa_tagstruct_eof(t)) {
865 protocol_error(c);
866 return;
867 }
868
869 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
870 CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
871 CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
872 CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
873 CHECK_VALIDITY(c->pstream, source_index != PA_INVALID_INDEX || !source_name || (*source_name && pa_utf8_valid(source_name)), tag, PA_ERR_INVALID);
874 CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
875 CHECK_VALIDITY(c->pstream, maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID);
876
877 if (source_index != PA_INVALID_INDEX) {
878 source = pa_idxset_get_by_index(c->protocol->core->sources, source_index);
879 CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
880 } else if (source_name) {
881 source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1);
882 CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
883 }
884
885 s = record_stream_new(c, source, &ss, &map, name, maxlength, fragment_size);
886 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
887
888 pa_source_output_cork(s->source_output, corked);
889
890 reply = reply_new(tag);
891 pa_tagstruct_putu32(reply, s->index);
892 assert(s->source_output);
893 pa_tagstruct_putu32(reply, s->source_output->index);
894
895 if (c->version >= 9) {
896 /* Since 0.9 we support sending the buffer metrics back to the client */
897
898 pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq));
899 pa_tagstruct_putu32(reply, (uint32_t) s->fragment_size);
900 }
901
902 pa_pstream_send_tagstruct(c->pstream, reply);
903 }
904
905 static void command_exit(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
906 struct connection *c = userdata;
907 assert(c && t);
908
909 if (!pa_tagstruct_eof(t)) {
910 protocol_error(c);
911 return;
912 }
913
914 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
915
916 assert(c->protocol && c->protocol->core && c->protocol->core->mainloop);
917 c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0);
918 pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
919 }
920
921 static void command_auth(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
922 struct connection *c = userdata;
923 const void*cookie;
924 pa_tagstruct *reply;
925 assert(c && t);
926
927 if (pa_tagstruct_getu32(t, &c->version) < 0 ||
928 pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
929 !pa_tagstruct_eof(t)) {
930 protocol_error(c);
931 return;
932 }
933
934 /* Minimum supported version */
935 if (c->version < 8) {
936 pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION);
937 return;
938 }
939
940 if (!c->authorized) {
941 int success = 0;
942
943 #ifdef HAVE_CREDS
944 const pa_creds *creds;
945
946 if ((creds = pa_pdispatch_creds(pd))) {
947 if (creds->uid == getuid())
948 success = 1;
949 else if (c->protocol->auth_group) {
950 int r;
951 gid_t gid;
952
953 if ((gid = pa_get_gid_of_group(c->protocol->auth_group)) == (gid_t) -1)
954 pa_log_warn("failed to get GID of group '%s'", c->protocol->auth_group);
955 else if (gid == creds->gid)
956 success = 1;
957
958 if (!success) {
959 if ((r = pa_uid_in_group(creds->uid, c->protocol->auth_group)) < 0)
960 pa_log_warn("failed to check group membership.");
961 else if (r > 0)
962 success = 1;
963 }
964 }
965
966 pa_log_info("Got credentials: uid=%lu gid=%lu success=%i",
967 (unsigned long) creds->uid,
968 (unsigned long) creds->gid,
969 success);
970
971 if (c->version >= 10 &&
972 pa_mempool_is_shared(c->protocol->core->mempool) &&
973 creds->uid == getuid()) {
974
975 pa_pstream_use_shm(c->pstream, 1);
976 pa_log_info("Enabled SHM for new connection");
977 }
978
979 }
980 #endif
981
982 if (!success && memcmp(c->protocol->auth_cookie, cookie, PA_NATIVE_COOKIE_LENGTH) == 0)
983 success = 1;
984
985 if (!success) {
986 pa_log_warn("Denied access to client with invalid authorization data.");
987 pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS);
988 return;
989 }
990
991 c->authorized = 1;
992 if (c->auth_timeout_event) {
993 c->protocol->core->mainloop->time_free(c->auth_timeout_event);
994 c->auth_timeout_event = NULL;
995 }
996 }
997
998 reply = reply_new(tag);
999 pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION);
1000
1001 #ifdef HAVE_CREDS
1002 {
1003 /* SHM support is only enabled after both sides made sure they are the same user. */
1004
1005 pa_creds ucred;
1006
1007 ucred.uid = getuid();
1008 ucred.gid = getgid();
1009
1010 pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred);
1011 }
1012 #else
1013 pa_pstream_send_tagstruct(c->pstream, reply);
1014 #endif
1015 }
1016
1017 static void command_set_client_name(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1018 struct connection *c = userdata;
1019 const char *name;
1020 assert(c && t);
1021
1022 if (pa_tagstruct_gets(t, &name) < 0 ||
1023 !pa_tagstruct_eof(t)) {
1024 protocol_error(c);
1025 return;
1026 }
1027
1028 CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
1029
1030 pa_client_set_name(c->client, name);
1031 pa_pstream_send_simple_ack(c->pstream, tag);
1032 }
1033
1034 static void command_lookup(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1035 struct connection *c = userdata;
1036 const char *name;
1037 uint32_t idx = PA_IDXSET_INVALID;
1038 assert(c && t);
1039
1040 if (pa_tagstruct_gets(t, &name) < 0 ||
1041 !pa_tagstruct_eof(t)) {
1042 protocol_error(c);
1043 return;
1044 }
1045
1046 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1047 CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
1048
1049 if (command == PA_COMMAND_LOOKUP_SINK) {
1050 pa_sink *sink;
1051 if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1)))
1052 idx = sink->index;
1053 } else {
1054 pa_source *source;
1055 assert(command == PA_COMMAND_LOOKUP_SOURCE);
1056 if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1)))
1057 idx = source->index;
1058 }
1059
1060 if (idx == PA_IDXSET_INVALID)
1061 pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1062 else {
1063 pa_tagstruct *reply;
1064 reply = reply_new(tag);
1065 pa_tagstruct_putu32(reply, idx);
1066 pa_pstream_send_tagstruct(c->pstream, reply);
1067 }
1068 }
1069
1070 static void command_drain_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1071 struct connection *c = userdata;
1072 uint32_t idx;
1073 struct playback_stream *s;
1074 assert(c && t);
1075
1076 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1077 !pa_tagstruct_eof(t)) {
1078 protocol_error(c);
1079 return;
1080 }
1081
1082 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1083 s = pa_idxset_get_by_index(c->output_streams, idx);
1084 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1085 CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY);
1086
1087 s->drain_request = 0;
1088
1089 pa_memblockq_prebuf_disable(s->memblockq);
1090
1091 if (!pa_memblockq_is_readable(s->memblockq)) {
1092 /* pa_log("immediate drain: %u", pa_memblockq_get_length(s->memblockq)); */
1093 pa_pstream_send_simple_ack(c->pstream, tag);
1094 } else {
1095 /* pa_log("slow drain triggered"); */
1096 s->drain_request = 1;
1097 s->drain_tag = tag;
1098
1099 pa_sink_notify(s->sink_input->sink);
1100 }
1101 }
1102
1103 static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1104 struct connection *c = userdata;
1105 pa_tagstruct *reply;
1106 const pa_mempool_stat *stat;
1107 assert(c && t);
1108
1109 if (!pa_tagstruct_eof(t)) {
1110 protocol_error(c);
1111 return;
1112 }
1113
1114 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1115
1116 stat = pa_mempool_get_stat(c->protocol->core->mempool);
1117
1118 reply = reply_new(tag);
1119 pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated));
1120 pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size));
1121 pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated));
1122 pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size));
1123 pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
1124 pa_pstream_send_tagstruct(c->pstream, reply);
1125 }
1126
1127 static void command_get_playback_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1128 struct connection *c = userdata;
1129 pa_tagstruct *reply;
1130 struct playback_stream *s;
1131 struct timeval tv, now;
1132 uint32_t idx;
1133 pa_usec_t latency;
1134 assert(c && t);
1135
1136 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1137 pa_tagstruct_get_timeval(t, &tv) < 0 ||
1138 !pa_tagstruct_eof(t)) {
1139 protocol_error(c);
1140 return;
1141 }
1142
1143 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1144 s = pa_idxset_get_by_index(c->output_streams, idx);
1145 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1146 CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY);
1147
1148 reply = reply_new(tag);
1149
1150 latency = pa_sink_get_latency(s->sink_input->sink);
1151 if (s->sink_input->resampled_chunk.memblock)
1152 latency += pa_bytes_to_usec(s->sink_input->resampled_chunk.length, &s->sink_input->sample_spec);
1153 pa_tagstruct_put_usec(reply, latency);
1154
1155 pa_tagstruct_put_usec(reply, 0);
1156 pa_tagstruct_put_boolean(reply, s->sink_input->state == PA_SINK_INPUT_RUNNING);
1157 pa_tagstruct_put_timeval(reply, &tv);
1158 pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
1159 pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
1160 pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
1161 pa_pstream_send_tagstruct(c->pstream, reply);
1162 }
1163
1164 static void command_get_record_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1165 struct connection *c = userdata;
1166 pa_tagstruct *reply;
1167 struct record_stream *s;
1168 struct timeval tv, now;
1169 uint32_t idx;
1170 assert(c && t);
1171
1172 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1173 pa_tagstruct_get_timeval(t, &tv) < 0 ||
1174 !pa_tagstruct_eof(t)) {
1175 protocol_error(c);
1176 return;
1177 }
1178
1179 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1180 s = pa_idxset_get_by_index(c->record_streams, idx);
1181 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1182
1183 reply = reply_new(tag);
1184 pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
1185 pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
1186 pa_tagstruct_put_boolean(reply, 0);
1187 pa_tagstruct_put_timeval(reply, &tv);
1188 pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
1189 pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
1190 pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
1191 pa_pstream_send_tagstruct(c->pstream, reply);
1192 }
1193
1194 static void command_create_upload_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1195 struct connection *c = userdata;
1196 struct upload_stream *s;
1197 uint32_t length;
1198 const char *name;
1199 pa_sample_spec ss;
1200 pa_channel_map map;
1201 pa_tagstruct *reply;
1202 assert(c && t && c->protocol && c->protocol->core);
1203
1204 if (pa_tagstruct_gets(t, &name) < 0 ||
1205 pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
1206 pa_tagstruct_get_channel_map(t, &map) < 0 ||
1207 pa_tagstruct_getu32(t, &length) < 0 ||
1208 !pa_tagstruct_eof(t)) {
1209 protocol_error(c);
1210 return;
1211 }
1212
1213 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1214 CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1215 CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1216 CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
1217 CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID);
1218 CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE);
1219 CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
1220
1221 s = upload_stream_new(c, &ss, &map, name, length);
1222 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
1223
1224 reply = reply_new(tag);
1225 pa_tagstruct_putu32(reply, s->index);
1226 pa_tagstruct_putu32(reply, length);
1227 pa_pstream_send_tagstruct(c->pstream, reply);
1228 }
1229
1230 static void command_finish_upload_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1231 struct connection *c = userdata;
1232 uint32_t channel;
1233 struct upload_stream *s;
1234 uint32_t idx;
1235 assert(c && t);
1236
1237 if (pa_tagstruct_getu32(t, &channel) < 0 ||
1238 !pa_tagstruct_eof(t)) {
1239 protocol_error(c);
1240 return;
1241 }
1242
1243 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1244
1245 s = pa_idxset_get_by_index(c->output_streams, channel);
1246 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1247 CHECK_VALIDITY(c->pstream, s->type == UPLOAD_STREAM, tag, PA_ERR_NOENTITY);
1248
1249 if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, &idx) < 0)
1250 pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL);
1251 else
1252 pa_pstream_send_simple_ack(c->pstream, tag);
1253
1254 upload_stream_free(s);
1255 }
1256
1257 static void command_play_sample(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1258 struct connection *c = userdata;
1259 uint32_t sink_index;
1260 pa_volume_t volume;
1261 pa_sink *sink;
1262 const char *name, *sink_name;
1263 assert(c && t);
1264
1265 if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
1266 pa_tagstruct_gets(t, &sink_name) < 0 ||
1267 pa_tagstruct_getu32(t, &volume) < 0 ||
1268 pa_tagstruct_gets(t, &name) < 0 ||
1269 !pa_tagstruct_eof(t)) {
1270 protocol_error(c);
1271 return;
1272 }
1273
1274 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1275 CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
1276 CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
1277
1278 if (sink_index != PA_INVALID_INDEX)
1279 sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
1280 else
1281 sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
1282
1283 CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
1284
1285 if (pa_scache_play_item(c->protocol->core, name, sink, volume) < 0) {
1286 pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1287 return;
1288 }
1289
1290 pa_pstream_send_simple_ack(c->pstream, tag);
1291 }
1292
1293 static void command_remove_sample(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1294 struct connection *c = userdata;
1295 const char *name;
1296 assert(c && t);
1297
1298 if (pa_tagstruct_gets(t, &name) < 0 ||
1299 !pa_tagstruct_eof(t)) {
1300 protocol_error(c);
1301 return;
1302 }
1303
1304 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1305 CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
1306
1307 if (pa_scache_remove_item(c->protocol->core, name) < 0) {
1308 pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1309 return;
1310 }
1311
1312 pa_pstream_send_simple_ack(c->pstream, tag);
1313 }
1314
1315 static void sink_fill_tagstruct(pa_tagstruct *t, pa_sink *sink) {
1316 assert(t && sink);
1317 pa_tagstruct_put(
1318 t,
1319 PA_TAG_U32, sink->index,
1320 PA_TAG_STRING, sink->name,
1321 PA_TAG_STRING, sink->description,
1322 PA_TAG_SAMPLE_SPEC, &sink->sample_spec,
1323 PA_TAG_CHANNEL_MAP, &sink->channel_map,
1324 PA_TAG_U32, sink->owner ? sink->owner->index : PA_INVALID_INDEX,
1325 PA_TAG_CVOLUME, pa_sink_get_volume(sink, PA_MIXER_HARDWARE),
1326 PA_TAG_BOOLEAN, pa_sink_get_mute(sink, PA_MIXER_HARDWARE),
1327 PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX,
1328 PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL,
1329 PA_TAG_USEC, pa_sink_get_latency(sink),
1330 PA_TAG_STRING, sink->driver,
1331 PA_TAG_U32,
1332 (sink->get_hw_volume ? PA_SINK_HW_VOLUME_CTRL : 0) |
1333 (sink->get_latency ? PA_SINK_LATENCY : 0) |
1334 (sink->is_hardware ? PA_SINK_HARDWARE : 0),
1335 PA_TAG_INVALID);
1336 }
1337
1338 static void source_fill_tagstruct(pa_tagstruct *t, pa_source *source) {
1339 assert(t && source);
1340 pa_tagstruct_put(
1341 t,
1342 PA_TAG_U32, source->index,
1343 PA_TAG_STRING, source->name,
1344 PA_TAG_STRING, source->description,
1345 PA_TAG_SAMPLE_SPEC, &source->sample_spec,
1346 PA_TAG_CHANNEL_MAP, &source->channel_map,
1347 PA_TAG_U32, source->owner ? source->owner->index : PA_INVALID_INDEX,
1348 PA_TAG_CVOLUME, pa_source_get_volume(source, PA_MIXER_HARDWARE),
1349 PA_TAG_BOOLEAN, pa_source_get_mute(source, PA_MIXER_HARDWARE),
1350 PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX,
1351 PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
1352 PA_TAG_USEC, pa_source_get_latency(source),
1353 PA_TAG_STRING, source->driver,
1354 PA_TAG_U32,
1355 (source->get_hw_volume ? PA_SOURCE_HW_VOLUME_CTRL : 0) |
1356 (source->get_latency ? PA_SOURCE_LATENCY : 0) |
1357 (source->is_hardware ? PA_SOURCE_HARDWARE : 0),
1358 PA_TAG_INVALID);
1359 }
1360
1361 static void client_fill_tagstruct(pa_tagstruct *t, pa_client *client) {
1362 assert(t && client);
1363 pa_tagstruct_putu32(t, client->index);
1364 pa_tagstruct_puts(t, client->name);
1365 pa_tagstruct_putu32(t, client->owner ? client->owner->index : PA_INVALID_INDEX);
1366 pa_tagstruct_puts(t, client->driver);
1367 }
1368
1369 static void module_fill_tagstruct(pa_tagstruct *t, pa_module *module) {
1370 assert(t && module);
1371 pa_tagstruct_putu32(t, module->index);
1372 pa_tagstruct_puts(t, module->name);
1373 pa_tagstruct_puts(t, module->argument);
1374 pa_tagstruct_putu32(t, module->n_used);
1375 pa_tagstruct_put_boolean(t, module->auto_unload);
1376 }
1377
1378 static void sink_input_fill_tagstruct(pa_tagstruct *t, pa_sink_input *s) {
1379 assert(t && s);
1380 pa_tagstruct_putu32(t, s->index);
1381 pa_tagstruct_puts(t, s->name);
1382 pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
1383 pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
1384 pa_tagstruct_putu32(t, s->sink->index);
1385 pa_tagstruct_put_sample_spec(t, &s->sample_spec);
1386 pa_tagstruct_put_channel_map(t, &s->channel_map);
1387 pa_tagstruct_put_cvolume(t, &s->volume);
1388 pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s));
1389 pa_tagstruct_put_usec(t, pa_sink_get_latency(s->sink));
1390 pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s)));
1391 pa_tagstruct_puts(t, s->driver);
1392 }
1393
1394 static void source_output_fill_tagstruct(pa_tagstruct *t, pa_source_output *s) {
1395 assert(t && s);
1396 pa_tagstruct_putu32(t, s->index);
1397 pa_tagstruct_puts(t, s->name);
1398 pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
1399 pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
1400 pa_tagstruct_putu32(t, s->source->index);
1401 pa_tagstruct_put_sample_spec(t, &s->sample_spec);
1402 pa_tagstruct_put_channel_map(t, &s->channel_map);
1403 pa_tagstruct_put_usec(t, pa_source_output_get_latency(s));
1404 pa_tagstruct_put_usec(t, pa_source_get_latency(s->source));
1405 pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s)));
1406 pa_tagstruct_puts(t, s->driver);
1407 }
1408
1409 static void scache_fill_tagstruct(pa_tagstruct *t, pa_scache_entry *e) {
1410 assert(t && e);
1411 pa_tagstruct_putu32(t, e->index);
1412 pa_tagstruct_puts(t, e->name);
1413 pa_tagstruct_put_cvolume(t, &e->volume);
1414 pa_tagstruct_put_usec(t, pa_bytes_to_usec(e->memchunk.length, &e->sample_spec));
1415 pa_tagstruct_put_sample_spec(t, &e->sample_spec);
1416 pa_tagstruct_put_channel_map(t, &e->channel_map);
1417 pa_tagstruct_putu32(t, e->memchunk.length);
1418 pa_tagstruct_put_boolean(t, e->lazy);
1419 pa_tagstruct_puts(t, e->filename);
1420 }
1421
1422 static void command_get_info(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1423 struct connection *c = userdata;
1424 uint32_t idx;
1425 pa_sink *sink = NULL;
1426 pa_source *source = NULL;
1427 pa_client *client = NULL;
1428 pa_module *module = NULL;
1429 pa_sink_input *si = NULL;
1430 pa_source_output *so = NULL;
1431 pa_scache_entry *sce = NULL;
1432 const char *name;
1433 pa_tagstruct *reply;
1434 assert(c && t);
1435
1436 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1437 (command != PA_COMMAND_GET_CLIENT_INFO &&
1438 command != PA_COMMAND_GET_MODULE_INFO &&
1439 command != PA_COMMAND_GET_SINK_INPUT_INFO &&
1440 command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
1441 pa_tagstruct_gets(t, &name) < 0) ||
1442 !pa_tagstruct_eof(t)) {
1443 protocol_error(c);
1444 return;
1445 }
1446
1447 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1448 CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
1449
1450 if (command == PA_COMMAND_GET_SINK_INFO) {
1451 if (idx != PA_INVALID_INDEX)
1452 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
1453 else
1454 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
1455 } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
1456 if (idx != PA_INVALID_INDEX)
1457 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
1458 else
1459 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
1460 } else if (command == PA_COMMAND_GET_CLIENT_INFO)
1461 client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
1462 else if (command == PA_COMMAND_GET_MODULE_INFO)
1463 module = pa_idxset_get_by_index(c->protocol->core->modules, idx);
1464 else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
1465 si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
1466 else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
1467 so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
1468 else {
1469 assert(command == PA_COMMAND_GET_SAMPLE_INFO);
1470 if (idx != PA_INVALID_INDEX)
1471 sce = pa_idxset_get_by_index(c->protocol->core->scache, idx);
1472 else
1473 sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0);
1474 }
1475
1476 if (!sink && !source && !client && !module && !si && !so && !sce) {
1477 pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1478 return;
1479 }
1480
1481 reply = reply_new(tag);
1482 if (sink)
1483 sink_fill_tagstruct(reply, sink);
1484 else if (source)
1485 source_fill_tagstruct(reply, source);
1486 else if (client)
1487 client_fill_tagstruct(reply, client);
1488 else if (module)
1489 module_fill_tagstruct(reply, module);
1490 else if (si)
1491 sink_input_fill_tagstruct(reply, si);
1492 else if (so)
1493 source_output_fill_tagstruct(reply, so);
1494 else
1495 scache_fill_tagstruct(reply, sce);
1496 pa_pstream_send_tagstruct(c->pstream, reply);
1497 }
1498
1499 static void command_get_info_list(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1500 struct connection *c = userdata;
1501 pa_idxset *i;
1502 uint32_t idx;
1503 void *p;
1504 pa_tagstruct *reply;
1505 assert(c && t);
1506
1507 if (!pa_tagstruct_eof(t)) {
1508 protocol_error(c);
1509 return;
1510 }
1511
1512 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1513
1514 reply = reply_new(tag);
1515
1516 if (command == PA_COMMAND_GET_SINK_INFO_LIST)
1517 i = c->protocol->core->sinks;
1518 else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
1519 i = c->protocol->core->sources;
1520 else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
1521 i = c->protocol->core->clients;
1522 else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
1523 i = c->protocol->core->modules;
1524 else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
1525 i = c->protocol->core->sink_inputs;
1526 else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
1527 i = c->protocol->core->source_outputs;
1528 else {
1529 assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
1530 i = c->protocol->core->scache;
1531 }
1532
1533 if (i) {
1534 for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) {
1535 if (command == PA_COMMAND_GET_SINK_INFO_LIST)
1536 sink_fill_tagstruct(reply, p);
1537 else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
1538 source_fill_tagstruct(reply, p);
1539 else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
1540 client_fill_tagstruct(reply, p);
1541 else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
1542 module_fill_tagstruct(reply, p);
1543 else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
1544 sink_input_fill_tagstruct(reply, p);
1545 else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
1546 source_output_fill_tagstruct(reply, p);
1547 else {
1548 assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
1549 scache_fill_tagstruct(reply, p);
1550 }
1551 }
1552 }
1553
1554 pa_pstream_send_tagstruct(c->pstream, reply);
1555 }
1556
1557 static void command_get_server_info(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1558 struct connection *c = userdata;
1559 pa_tagstruct *reply;
1560 char txt[256];
1561 const char *n;
1562 assert(c && t);
1563
1564 if (!pa_tagstruct_eof(t)) {
1565 protocol_error(c);
1566 return;
1567 }
1568
1569 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1570
1571 reply = reply_new(tag);
1572 pa_tagstruct_puts(reply, PACKAGE_NAME);
1573 pa_tagstruct_puts(reply, PACKAGE_VERSION);
1574 pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
1575 pa_tagstruct_puts(reply, pa_get_fqdn(txt, sizeof(txt)));
1576 pa_tagstruct_put_sample_spec(reply, &c->protocol->core->default_sample_spec);
1577
1578 n = pa_namereg_get_default_sink_name(c->protocol->core);
1579 pa_tagstruct_puts(reply, n);
1580 n = pa_namereg_get_default_source_name(c->protocol->core);
1581 pa_tagstruct_puts(reply, n);
1582
1583 pa_tagstruct_putu32(reply, c->protocol->core->cookie);
1584
1585 pa_pstream_send_tagstruct(c->pstream, reply);
1586 }
1587
1588 static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) {
1589 pa_tagstruct *t;
1590 struct connection *c = userdata;
1591 assert(c && core);
1592
1593 t = pa_tagstruct_new(NULL, 0);
1594 pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
1595 pa_tagstruct_putu32(t, (uint32_t) -1);
1596 pa_tagstruct_putu32(t, e);
1597 pa_tagstruct_putu32(t, idx);
1598 pa_pstream_send_tagstruct(c->pstream, t);
1599 }
1600
1601 static void command_subscribe(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1602 struct connection *c = userdata;
1603 pa_subscription_mask_t m;
1604 assert(c && t);
1605
1606 if (pa_tagstruct_getu32(t, &m) < 0 ||
1607 !pa_tagstruct_eof(t)) {
1608 protocol_error(c);
1609 return;
1610 }
1611
1612 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1613 CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID);
1614
1615 if (c->subscription)
1616 pa_subscription_free(c->subscription);
1617
1618 if (m != 0) {
1619 c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
1620 assert(c->subscription);
1621 } else
1622 c->subscription = NULL;
1623
1624 pa_pstream_send_simple_ack(c->pstream, tag);
1625 }
1626
1627 static void command_set_volume(
1628 PA_GCC_UNUSED pa_pdispatch *pd,
1629 uint32_t command,
1630 uint32_t tag,
1631 pa_tagstruct *t,
1632 void *userdata) {
1633
1634 struct connection *c = userdata;
1635 uint32_t idx;
1636 pa_cvolume volume;
1637 pa_sink *sink = NULL;
1638 pa_source *source = NULL;
1639 pa_sink_input *si = NULL;
1640 const char *name = NULL;
1641 assert(c && t);
1642
1643 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1644 (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
1645 (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
1646 pa_tagstruct_get_cvolume(t, &volume) ||
1647 !pa_tagstruct_eof(t)) {
1648 protocol_error(c);
1649 return;
1650 }
1651
1652 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1653 CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
1654 CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
1655
1656 if (command == PA_COMMAND_SET_SINK_VOLUME) {
1657 if (idx != PA_INVALID_INDEX)
1658 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
1659 else
1660 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
1661 } else if (command == PA_COMMAND_SET_SOURCE_VOLUME) {
1662 if (idx != (uint32_t) -1)
1663 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
1664 else
1665 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
1666 } else {
1667 assert(command == PA_COMMAND_SET_SINK_INPUT_VOLUME);
1668 si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
1669 }
1670
1671 CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
1672
1673 if (sink)
1674 pa_sink_set_volume(sink, PA_MIXER_HARDWARE, &volume);
1675 else if (source)
1676 pa_source_set_volume(source, PA_MIXER_HARDWARE, &volume);
1677 else if (si)
1678 pa_sink_input_set_volume(si, &volume);
1679
1680 pa_pstream_send_simple_ack(c->pstream, tag);
1681 }
1682
1683 static void command_set_mute(
1684 PA_GCC_UNUSED pa_pdispatch *pd,
1685 uint32_t command,
1686 uint32_t tag,
1687 pa_tagstruct *t,
1688 void *userdata) {
1689
1690 struct connection *c = userdata;
1691 uint32_t idx;
1692 int mute;
1693 pa_sink *sink = NULL;
1694 pa_source *source = NULL;
1695 const char *name = NULL;
1696 assert(c && t);
1697
1698 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1699 pa_tagstruct_gets(t, &name) < 0 ||
1700 pa_tagstruct_get_boolean(t, &mute) ||
1701 !pa_tagstruct_eof(t)) {
1702 protocol_error(c);
1703 return;
1704 }
1705
1706 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1707 CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
1708
1709 if (command == PA_COMMAND_SET_SINK_MUTE) {
1710 if (idx != PA_INVALID_INDEX)
1711 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
1712 else
1713 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
1714 } else {
1715 assert(command == PA_COMMAND_SET_SOURCE_MUTE);
1716 if (idx != (uint32_t) -1)
1717 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
1718 else
1719 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
1720 }
1721
1722 CHECK_VALIDITY(c->pstream, sink || source, tag, PA_ERR_NOENTITY);
1723
1724 if (sink)
1725 pa_sink_set_mute(sink, PA_MIXER_HARDWARE, mute);
1726 else if (source)
1727 pa_source_set_mute(source, PA_MIXER_HARDWARE, mute);
1728
1729 pa_pstream_send_simple_ack(c->pstream, tag);
1730 }
1731
1732 static void command_cork_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1733 struct connection *c = userdata;
1734 uint32_t idx;
1735 int b;
1736 struct playback_stream *s, *ssync;
1737 assert(c && t);
1738
1739 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1740 pa_tagstruct_get_boolean(t, &b) < 0 ||
1741 !pa_tagstruct_eof(t)) {
1742 protocol_error(c);
1743 return;
1744 }
1745
1746 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1747 CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1748 s = pa_idxset_get_by_index(c->output_streams, idx);
1749 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1750 CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY);
1751
1752 pa_sink_input_cork(s->sink_input, b);
1753 pa_memblockq_prebuf_force(s->memblockq);
1754
1755 /* Do the same for all other members in the sync group */
1756 for (ssync = s->prev; ssync; ssync = ssync->prev) {
1757 pa_sink_input_cork(ssync->sink_input, b);
1758 pa_memblockq_prebuf_force(ssync->memblockq);
1759 }
1760
1761 for (ssync = s->next; ssync; ssync = ssync->next) {
1762 pa_sink_input_cork(ssync->sink_input, b);
1763 pa_memblockq_prebuf_force(ssync->memblockq);
1764 }
1765
1766 pa_pstream_send_simple_ack(c->pstream, tag);
1767 }
1768
1769 static void command_flush_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1770 struct connection *c = userdata;
1771 uint32_t idx;
1772 struct playback_stream *s, *ssync;
1773 assert(c && t);
1774
1775 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1776 !pa_tagstruct_eof(t)) {
1777 protocol_error(c);
1778 return;
1779 }
1780
1781 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1782 CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1783 s = pa_idxset_get_by_index(c->output_streams, idx);
1784 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1785 CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY);
1786
1787 pa_memblockq_flush(s->memblockq);
1788 s->underrun = 0;
1789
1790 /* Do the same for all other members in the sync group */
1791 for (ssync = s->prev; ssync; ssync = ssync->prev) {
1792 pa_memblockq_flush(ssync->memblockq);
1793 ssync->underrun = 0;
1794 }
1795
1796 for (ssync = s->next; ssync; ssync = ssync->next) {
1797 pa_memblockq_flush(ssync->memblockq);
1798 ssync->underrun = 0;
1799 }
1800
1801 pa_pstream_send_simple_ack(c->pstream, tag);
1802 pa_sink_notify(s->sink_input->sink);
1803 request_bytes(s);
1804
1805 for (ssync = s->prev; ssync; ssync = ssync->prev)
1806 request_bytes(ssync);
1807
1808 for (ssync = s->next; ssync; ssync = ssync->next)
1809 request_bytes(ssync);
1810 }
1811
1812 static void command_trigger_or_prebuf_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1813 struct connection *c = userdata;
1814 uint32_t idx;
1815 struct playback_stream *s;
1816 assert(c && t);
1817
1818 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1819 !pa_tagstruct_eof(t)) {
1820 protocol_error(c);
1821 return;
1822 }
1823
1824 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1825 CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1826 s = pa_idxset_get_by_index(c->output_streams, idx);
1827 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1828 CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY);
1829
1830 switch (command) {
1831 case PA_COMMAND_PREBUF_PLAYBACK_STREAM:
1832 pa_memblockq_prebuf_force(s->memblockq);
1833 break;
1834
1835 case PA_COMMAND_TRIGGER_PLAYBACK_STREAM:
1836 pa_memblockq_prebuf_disable(s->memblockq);
1837 break;
1838
1839 default:
1840 abort();
1841 }
1842
1843 pa_sink_notify(s->sink_input->sink);
1844 pa_pstream_send_simple_ack(c->pstream, tag);
1845 request_bytes(s);
1846 }
1847
1848 static void command_cork_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1849 struct connection *c = userdata;
1850 uint32_t idx;
1851 struct record_stream *s;
1852 int b;
1853 assert(c && t);
1854
1855 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1856 pa_tagstruct_get_boolean(t, &b) < 0 ||
1857 !pa_tagstruct_eof(t)) {
1858 protocol_error(c);
1859 return;
1860 }
1861
1862 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1863 s = pa_idxset_get_by_index(c->record_streams, idx);
1864 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1865
1866 pa_source_output_cork(s->source_output, b);
1867 pa_memblockq_prebuf_force(s->memblockq);
1868 pa_pstream_send_simple_ack(c->pstream, tag);
1869 }
1870
1871 static void command_flush_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1872 struct connection *c = userdata;
1873 uint32_t idx;
1874 struct record_stream *s;
1875 assert(c && t);
1876
1877 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1878 !pa_tagstruct_eof(t)) {
1879 protocol_error(c);
1880 return;
1881 }
1882
1883 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1884 s = pa_idxset_get_by_index(c->record_streams, idx);
1885 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1886
1887 pa_memblockq_flush(s->memblockq);
1888 pa_pstream_send_simple_ack(c->pstream, tag);
1889 }
1890
1891 static void command_set_default_sink_or_source(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1892 struct connection *c = userdata;
1893 const char *s;
1894 assert(c && t);
1895
1896 if (pa_tagstruct_gets(t, &s) < 0 ||
1897 !pa_tagstruct_eof(t)) {
1898 protocol_error(c);
1899 return;
1900 }
1901
1902 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1903 CHECK_VALIDITY(c->pstream, !s || (*s && pa_utf8_valid(s)), tag, PA_ERR_INVALID);
1904
1905 pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
1906 pa_pstream_send_simple_ack(c->pstream, tag);
1907 }
1908
1909 static void command_set_stream_name(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1910 struct connection *c = userdata;
1911 uint32_t idx;
1912 const char *name;
1913 assert(c && t);
1914
1915 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1916 pa_tagstruct_gets(t, &name) < 0 ||
1917 !pa_tagstruct_eof(t)) {
1918 protocol_error(c);
1919 return;
1920 }
1921
1922 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1923 CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
1924
1925 if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
1926 struct playback_stream *s;
1927
1928 s = pa_idxset_get_by_index(c->output_streams, idx);
1929 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1930 CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY);
1931
1932 pa_sink_input_set_name(s->sink_input, name);
1933
1934 } else {
1935 struct record_stream *s;
1936
1937 s = pa_idxset_get_by_index(c->record_streams, idx);
1938 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1939
1940 pa_source_output_set_name(s->source_output, name);
1941 }
1942
1943 pa_pstream_send_simple_ack(c->pstream, tag);
1944 }
1945
1946 static void command_kill(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1947 struct connection *c = userdata;
1948 uint32_t idx;
1949 assert(c && t);
1950
1951 if (pa_tagstruct_getu32(t, &idx) < 0 ||
1952 !pa_tagstruct_eof(t)) {
1953 protocol_error(c);
1954 return;
1955 }
1956
1957 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1958
1959 if (command == PA_COMMAND_KILL_CLIENT) {
1960 pa_client *client;
1961
1962 client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
1963 CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY);
1964 pa_client_kill(client);
1965
1966 } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
1967 pa_sink_input *s;
1968
1969 s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
1970 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1971
1972 pa_sink_input_kill(s);
1973 } else {
1974 pa_source_output *s;
1975
1976 assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
1977
1978 s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
1979 CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1980
1981 pa_source_output_kill(s);
1982 }
1983
1984 pa_pstream_send_simple_ack(c->pstream, tag);
1985 }
1986
1987 static void command_load_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1988 struct connection *c = userdata;
1989 pa_module *m;
1990 const char *name, *argument;
1991 pa_tagstruct *reply;
1992 assert(c && t);
1993
1994 if (pa_tagstruct_gets(t, &name) < 0 ||
1995 pa_tagstruct_gets(t, &argument) < 0 ||
1996 !pa_tagstruct_eof(t)) {
1997 protocol_error(c);
1998 return;
1999 }
2000
2001 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2002 CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID);
2003 CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
2004
2005 if (!(m = pa_module_load(c->protocol->core, name, argument))) {
2006 pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED);
2007 return;
2008 }
2009
2010 reply = reply_new(tag);
2011 pa_tagstruct_putu32(reply, m->index);
2012 pa_pstream_send_tagstruct(c->pstream, reply);
2013 }
2014
2015 static void command_unload_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2016 struct connection *c = userdata;
2017 uint32_t idx;
2018 pa_module *m;
2019 assert(c && t);
2020
2021 if (pa_tagstruct_getu32(t, &idx) < 0 ||
2022 !pa_tagstruct_eof(t)) {
2023 protocol_error(c);
2024 return;
2025 }
2026
2027 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2028 m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
2029 CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY);
2030
2031 pa_module_unload_request(m);
2032 pa_pstream_send_simple_ack(c->pstream, tag);
2033 }
2034
2035 static void command_add_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2036 struct connection *c = userdata;
2037 const char *name, *module, *argument;
2038 uint32_t type;
2039 uint32_t idx;
2040 pa_tagstruct *reply;
2041 assert(c && t);
2042
2043 if (pa_tagstruct_gets(t, &name) < 0 ||
2044 pa_tagstruct_getu32(t, &type) < 0 ||
2045 pa_tagstruct_gets(t, &module) < 0 ||
2046 pa_tagstruct_gets(t, &argument) < 0 ||
2047 !pa_tagstruct_eof(t)) {
2048 protocol_error(c);
2049 return;
2050 }
2051
2052 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2053 CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2054 CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID);
2055 CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID);
2056 CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
2057
2058 if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) {
2059 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
2060 return;
2061 }
2062
2063 reply = reply_new(tag);
2064 pa_tagstruct_putu32(reply, idx);
2065 pa_pstream_send_tagstruct(c->pstream, reply);
2066 }
2067
2068 static void command_remove_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2069 struct connection *c = userdata;
2070 const char *name = NULL;
2071 uint32_t type, idx = PA_IDXSET_INVALID;
2072 int r;
2073 assert(c && t);
2074
2075 if ((pa_tagstruct_getu32(t, &idx) < 0 &&
2076 (pa_tagstruct_gets(t, &name) < 0 ||
2077 pa_tagstruct_getu32(t, &type) < 0)) ||
2078 !pa_tagstruct_eof(t)) {
2079 protocol_error(c);
2080 return;
2081 }
2082
2083 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2084 CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
2085 CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID);
2086
2087 if (name)
2088 r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
2089 else
2090 r = pa_autoload_remove_by_index(c->protocol->core, idx);
2091
2092 CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY);
2093
2094 pa_pstream_send_simple_ack(c->pstream, tag);
2095 }
2096
2097 static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) {
2098 assert(t && e);
2099
2100 pa_tagstruct_putu32(t, e->index);
2101 pa_tagstruct_puts(t, e->name);
2102 pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1);
2103 pa_tagstruct_puts(t, e->module);
2104 pa_tagstruct_puts(t, e->argument);
2105 }
2106
2107 static void command_get_autoload_info(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2108 struct connection *c = userdata;
2109 const pa_autoload_entry *a = NULL;
2110 uint32_t type, idx;
2111 const char *name;
2112 pa_tagstruct *reply;
2113 assert(c && t);
2114
2115 if ((pa_tagstruct_getu32(t, &idx) < 0 &&
2116 (pa_tagstruct_gets(t, &name) < 0 ||
2117 pa_tagstruct_getu32(t, &type) < 0)) ||
2118 !pa_tagstruct_eof(t)) {
2119 protocol_error(c);
2120 return;
2121 }
2122
2123 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2124 CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
2125 CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2126
2127 if (name)
2128 a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
2129 else
2130 a = pa_autoload_get_by_index(c->protocol->core, idx);
2131
2132 CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY);
2133
2134 reply = reply_new(tag);
2135 autoload_fill_tagstruct(reply, a);
2136 pa_pstream_send_tagstruct(c->pstream, reply);
2137 }
2138
2139 static void command_get_autoload_info_list(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2140 struct connection *c = userdata;
2141 pa_tagstruct *reply;
2142 assert(c && t);
2143
2144 if (!pa_tagstruct_eof(t)) {
2145 protocol_error(c);
2146 return;
2147 }
2148
2149 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2150
2151 reply = reply_new(tag);
2152
2153 if (c->protocol->core->autoload_hashmap) {
2154 pa_autoload_entry *a;
2155 void *state = NULL;
2156
2157 while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL)))
2158 autoload_fill_tagstruct(reply, a);
2159 }
2160
2161 pa_pstream_send_tagstruct(c->pstream, reply);
2162 }
2163
2164 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2165 struct connection *c = userdata;
2166 uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX;
2167 const char *name = NULL;
2168
2169 assert(c);
2170 assert(t);
2171
2172 if (pa_tagstruct_getu32(t, &idx) < 0 ||
2173 pa_tagstruct_getu32(t, &idx_device) < 0 ||
2174 pa_tagstruct_gets(t, &name) < 0 ||
2175 !pa_tagstruct_eof(t)) {
2176 protocol_error(c);
2177 return;
2178 }
2179
2180 CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2181 CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2182 CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2183
2184 if (command == PA_COMMAND_MOVE_SINK_INPUT) {
2185 pa_sink_input *si = NULL;
2186 pa_sink *sink = NULL;
2187
2188 si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2189
2190 if (idx_device != PA_INVALID_INDEX)
2191 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device);
2192 else
2193 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2194
2195 CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY);
2196
2197 if (pa_sink_input_move_to(si, sink, 0) < 0) {
2198 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
2199 return;
2200 }
2201 } else {
2202 pa_source_output *so = NULL;
2203 pa_source *source;
2204
2205 so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
2206
2207 if (idx_device != PA_INVALID_INDEX)
2208 source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device);
2209 else
2210 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2211
2212 CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY);
2213
2214 if (pa_source_output_move_to(so, source) < 0) {
2215 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
2216 return;
2217 }
2218 }
2219
2220 pa_pstream_send_simple_ack(c->pstream, tag);
2221
2222 }
2223
2224 /*** pstream callbacks ***/
2225
2226 static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
2227 struct connection *c = userdata;
2228 assert(p && packet && packet->data && c);
2229
2230 if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) {
2231 pa_log("invalid packet.");
2232 connection_free(c);
2233 }
2234 }
2235
2236 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) {
2237 struct connection *c = userdata;
2238 struct output_stream *stream;
2239 assert(p && chunk && userdata);
2240
2241 if (!(stream = pa_idxset_get_by_index(c->output_streams, channel))) {
2242 pa_log("client sent block for invalid stream.");
2243 /* Ignoring */
2244 return;
2245 }
2246
2247 if (stream->type == PLAYBACK_STREAM) {
2248 struct playback_stream *ps = (struct playback_stream*) stream;
2249 if (chunk->length >= ps->requested_bytes)
2250 ps->requested_bytes = 0;
2251 else
2252 ps->requested_bytes -= chunk->length;
2253
2254 pa_memblockq_seek(ps->memblockq, offset, seek);
2255
2256 if (pa_memblockq_push_align(ps->memblockq, chunk) < 0) {
2257 pa_tagstruct *t;
2258
2259 pa_log_warn("failed to push data into queue");
2260
2261 /* Pushing this block into the queue failed, so we simulate
2262 * it by skipping ahead */
2263
2264 pa_memblockq_seek(ps->memblockq, chunk->length, PA_SEEK_RELATIVE);
2265
2266 /* Notify the user */
2267 t = pa_tagstruct_new(NULL, 0);
2268 pa_tagstruct_putu32(t, PA_COMMAND_OVERFLOW);
2269 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
2270 pa_tagstruct_putu32(t, ps->index);
2271 pa_pstream_send_tagstruct(p, t);
2272 }
2273
2274 ps->underrun = 0;
2275
2276 pa_sink_notify(ps->sink_input->sink);
2277
2278 } else {
2279 struct upload_stream *u = (struct upload_stream*) stream;
2280 size_t l;
2281 assert(u->type == UPLOAD_STREAM);
2282
2283 if (!u->memchunk.memblock) {
2284 if (u->length == chunk->length) {
2285 u->memchunk = *chunk;
2286 pa_memblock_ref(u->memchunk.memblock);
2287 u->length = 0;
2288 } else {
2289 u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length);
2290 u->memchunk.index = u->memchunk.length = 0;
2291 }
2292 }
2293
2294 assert(u->memchunk.memblock);
2295
2296 l = u->length;
2297 if (l > chunk->length)
2298 l = chunk->length;
2299
2300 if (l > 0) {
2301 memcpy((uint8_t*) u->memchunk.memblock->data + u->memchunk.index + u->memchunk.length,
2302 (uint8_t*) chunk->memblock->data+chunk->index, l);
2303 u->memchunk.length += l;
2304 u->length -= l;
2305 }
2306 }
2307 }
2308
2309 static void pstream_die_callback(pa_pstream *p, void *userdata) {
2310 struct connection *c = userdata;
2311 assert(p && c);
2312 connection_free(c);
2313
2314 /* pa_log("connection died.");*/
2315 }
2316
2317
2318 static void pstream_drain_callback(pa_pstream *p, void *userdata) {
2319 struct connection *c = userdata;
2320 assert(p && c);
2321
2322 send_memblock(c);
2323 }
2324
2325 /*** client callbacks ***/
2326
2327 static void client_kill_cb(pa_client *c) {
2328 assert(c && c->userdata);
2329 connection_free(c->userdata);
2330 }
2331
2332 /*** socket server callbacks ***/
2333
2334 static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
2335 struct connection *c = userdata;
2336 assert(m && tv && c && c->auth_timeout_event == e);
2337
2338 if (!c->authorized)
2339 connection_free(c);
2340 }
2341
2342 static void on_connection(PA_GCC_UNUSED pa_socket_server*s, pa_iochannel *io, void *userdata) {
2343 pa_protocol_native *p = userdata;
2344 struct connection *c;
2345 char cname[256], pname[128];
2346 assert(io && p);
2347
2348 if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
2349 pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
2350 pa_iochannel_free(io);
2351 return;
2352 }
2353
2354 c = pa_xmalloc(sizeof(struct connection));
2355
2356 c->authorized = !!p->public;
2357
2358 if (!c->authorized && p->auth_ip_acl && pa_ip_acl_check(p->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) {
2359 pa_log_info("Client authenticated by IP ACL.");
2360 c->authorized = 1;
2361 }
2362
2363 if (!c->authorized) {
2364 struct timeval tv;
2365 pa_gettimeofday(&tv);
2366 tv.tv_sec += AUTH_TIMEOUT;
2367 c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
2368 } else
2369 c->auth_timeout_event = NULL;
2370
2371 c->version = 8;
2372 c->protocol = p;
2373 pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
2374 snprintf(cname, sizeof(cname), "Native client (%s)", pname);
2375 assert(p->core);
2376 c->client = pa_client_new(p->core, __FILE__, cname);
2377 assert(c->client);
2378 c->client->kill = client_kill_cb;
2379 c->client->userdata = c;
2380 c->client->owner = p->module;
2381
2382 c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool);
2383 assert(c->pstream);
2384
2385 pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
2386 pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
2387 pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
2388 pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
2389
2390 c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
2391 assert(c->pdispatch);
2392
2393 c->record_streams = pa_idxset_new(NULL, NULL);
2394 c->output_streams = pa_idxset_new(NULL, NULL);
2395 assert(c->record_streams && c->output_streams);
2396
2397 c->rrobin_index = PA_IDXSET_INVALID;
2398 c->subscription = NULL;
2399
2400 pa_idxset_put(p->connections, c, NULL);
2401
2402
2403 #ifdef HAVE_CREDS
2404 if (pa_iochannel_creds_supported(io))
2405 pa_iochannel_creds_enable(io);
2406
2407 #endif
2408 }
2409
2410 /*** module entry points ***/
2411
2412 static int load_key(pa_protocol_native*p, const char*fn) {
2413 assert(p);
2414
2415 p->auth_cookie_in_property = 0;
2416
2417 if (!fn && pa_authkey_prop_get(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) {
2418 pa_log_info("using already loaded auth cookie.");
2419 pa_authkey_prop_ref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME);
2420 p->auth_cookie_in_property = 1;
2421 return 0;
2422 }
2423
2424 if (!fn)
2425 fn = PA_NATIVE_COOKIE_FILE;
2426
2427 if (pa_authkey_load_auto(fn, p->auth_cookie, sizeof(p->auth_cookie)) < 0)
2428 return -1;
2429
2430 pa_log_info("loading cookie from disk.");
2431
2432 if (pa_authkey_prop_put(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0)
2433 p->auth_cookie_in_property = 1;
2434
2435 return 0;
2436 }
2437
2438 static pa_protocol_native* protocol_new_internal(pa_core *c, pa_module *m, pa_modargs *ma) {
2439 pa_protocol_native *p;
2440 int public = 0;
2441 const char *acl;
2442
2443 assert(c);
2444 assert(ma);
2445
2446 if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &public) < 0) {
2447 pa_log("auth-anonymous= expects a boolean argument.");
2448 return NULL;
2449 }
2450
2451 p = pa_xnew(pa_protocol_native, 1);
2452 p->core = c;
2453 p->module = m;
2454 p->public = public;
2455 p->server = NULL;
2456 p->auth_ip_acl = NULL;
2457
2458 #ifdef HAVE_CREDS
2459 {
2460 int a = 1;
2461 if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &a) < 0) {
2462 pa_log("auth-group-enabled= expects a boolean argument.");
2463 return NULL;
2464 }
2465 p->auth_group = a ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", c->is_system_instance ? PA_ACCESS_GROUP : NULL)) : NULL;
2466
2467 if (p->auth_group)
2468 pa_log_info("Allowing access to group '%s'.", p->auth_group);
2469 }
2470 #endif
2471
2472
2473 if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) {
2474
2475 if (!(p->auth_ip_acl = pa_ip_acl_new(acl))) {
2476 pa_log("Failed to parse IP ACL '%s'", acl);
2477 goto fail;
2478 }
2479 }
2480
2481 if (load_key(p, pa_modargs_get_value(ma, "cookie", NULL)) < 0)
2482 goto fail;
2483
2484 p->connections = pa_idxset_new(NULL, NULL);
2485 assert(p->connections);
2486
2487 return p;
2488
2489 fail:
2490 #ifdef HAVE_CREDS
2491 pa_xfree(p->auth_group);
2492 #endif
2493 if (p->auth_ip_acl)
2494 pa_ip_acl_free(p->auth_ip_acl);
2495 pa_xfree(p);
2496 return NULL;
2497 }
2498
2499 pa_protocol_native* pa_protocol_native_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma) {
2500 char t[256];
2501 pa_protocol_native *p;
2502
2503 if (!(p = protocol_new_internal(core, m, ma)))
2504 return NULL;
2505
2506 p->server = server;
2507 pa_socket_server_set_callback(p->server, on_connection, p);
2508
2509 if (pa_socket_server_get_address(p->server, t, sizeof(t))) {
2510 pa_strlist *l;
2511 l = pa_property_get(core, PA_NATIVE_SERVER_PROPERTY_NAME);
2512 l = pa_strlist_prepend(l, t);
2513 pa_property_replace(core, PA_NATIVE_SERVER_PROPERTY_NAME, l);
2514 }
2515
2516 return p;
2517 }
2518
2519 void pa_protocol_native_free(pa_protocol_native *p) {
2520 struct connection *c;
2521 assert(p);
2522
2523 while ((c = pa_idxset_first(p->connections, NULL)))
2524 connection_free(c);
2525 pa_idxset_free(p->connections, NULL, NULL);
2526
2527 if (p->server) {
2528 char t[256];
2529
2530 if (pa_socket_server_get_address(p->server, t, sizeof(t))) {
2531 pa_strlist *l;
2532 l = pa_property_get(p->core, PA_NATIVE_SERVER_PROPERTY_NAME);
2533 l = pa_strlist_remove(l, t);
2534
2535 if (l)
2536 pa_property_replace(p->core, PA_NATIVE_SERVER_PROPERTY_NAME, l);
2537 else
2538 pa_property_remove(p->core, PA_NATIVE_SERVER_PROPERTY_NAME);
2539 }
2540
2541 pa_socket_server_unref(p->server);
2542 }
2543
2544 if (p->auth_cookie_in_property)
2545 pa_authkey_prop_unref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME);
2546
2547 if (p->auth_ip_acl)
2548 pa_ip_acl_free(p->auth_ip_acl);
2549
2550 #ifdef HAVE_CREDS
2551 pa_xfree(p->auth_group);
2552 #endif
2553 pa_xfree(p);
2554 }
2555
2556 pa_protocol_native* pa_protocol_native_new_iochannel(pa_core*core, pa_iochannel *io, pa_module *m, pa_modargs *ma) {
2557 pa_protocol_native *p;
2558
2559 if (!(p = protocol_new_internal(core, m, ma)))
2560 return NULL;
2561
2562 on_connection(NULL, io, p);
2563
2564 return p;
2565 }