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