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[pulseaudio] / polyp / 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 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 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
31 #include "protocol-native.h"
32 #include "native-common.h"
33 #include "packet.h"
34 #include "client.h"
35 #include "source-output.h"
36 #include "sink-input.h"
37 #include "pstream.h"
38 #include "tagstruct.h"
39 #include "pdispatch.h"
40 #include "pstream-util.h"
41 #include "authkey.h"
42 #include "namereg.h"
43 #include "scache.h"
44 #include "xmalloc.h"
45 #include "util.h"
46 #include "subscribe.h"
47 #include "log.h"
48 #include "autoload.h"
49
50 struct connection;
51 struct pa_protocol_native;
52
53 struct record_stream {
54 struct connection *connection;
55 uint32_t index;
56 struct pa_source_output *source_output;
57 struct pa_memblockq *memblockq;
58 size_t fragment_size;
59 };
60
61 struct playback_stream {
62 int type;
63 struct connection *connection;
64 uint32_t index;
65 struct pa_sink_input *sink_input;
66 struct pa_memblockq *memblockq;
67 size_t requested_bytes;
68 int drain_request;
69 uint32_t drain_tag;
70 };
71
72 struct upload_stream {
73 int type;
74 struct connection *connection;
75 uint32_t index;
76 struct pa_memchunk memchunk;
77 size_t length;
78 char *name;
79 struct pa_sample_spec sample_spec;
80 };
81
82 struct output_stream {
83 int type;
84 };
85
86 enum {
87 UPLOAD_STREAM,
88 PLAYBACK_STREAM
89 };
90
91 struct connection {
92 int authorized;
93 struct pa_protocol_native *protocol;
94 struct pa_client *client;
95 struct pa_pstream *pstream;
96 struct pa_pdispatch *pdispatch;
97 struct pa_idxset *record_streams, *output_streams;
98 uint32_t rrobin_index;
99 struct pa_subscription *subscription;
100 };
101
102 struct pa_protocol_native {
103 struct pa_module *module;
104 int public;
105 struct pa_core *core;
106 struct pa_socket_server *server;
107 struct pa_idxset *connections;
108 uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH];
109 };
110
111 static int sink_input_peek_cb(struct pa_sink_input *i, struct pa_memchunk *chunk);
112 static void sink_input_drop_cb(struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length);
113 static void sink_input_kill_cb(struct pa_sink_input *i);
114 static pa_usec_t sink_input_get_latency_cb(struct pa_sink_input *i);
115
116 static void request_bytes(struct playback_stream*s);
117
118 static void source_output_kill_cb(struct pa_source_output *o);
119 static void source_output_push_cb(struct pa_source_output *o, const struct pa_memchunk *chunk);
120 static pa_usec_t source_output_get_latency_cb(struct pa_source_output *o);
121
122 static void command_exit(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
123 static void command_create_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
124 static void command_drain_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
125 static void command_create_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
126 static void command_delete_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
127 static void command_auth(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
128 static void command_set_client_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
129 static void command_lookup(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
130 static void command_stat(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
131 static void command_get_playback_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
132 static void command_get_record_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
133 static void command_create_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
134 static void command_finish_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
135 static void command_play_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
136 static void command_remove_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
137 static void command_get_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
138 static void command_get_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
139 static void command_get_server_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
140 static void command_subscribe(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
141 static void command_set_volume(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
142 static void command_cork_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
143 static void command_flush_or_trigger_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
144 static void command_set_default_sink_or_source(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
145 static void command_set_stream_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
146 static void command_kill(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
147 static void command_load_module(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
148 static void command_unload_module(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
149 static void command_add_autoload(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
150 static void command_remove_autoload(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
151 static void command_get_autoload_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
152 static void command_get_autoload_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
153
154 static const struct pa_pdispatch_command command_table[PA_COMMAND_MAX] = {
155 [PA_COMMAND_ERROR] = { NULL },
156 [PA_COMMAND_TIMEOUT] = { NULL },
157 [PA_COMMAND_REPLY] = { NULL },
158 [PA_COMMAND_CREATE_PLAYBACK_STREAM] = { command_create_playback_stream },
159 [PA_COMMAND_DELETE_PLAYBACK_STREAM] = { command_delete_stream },
160 [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = { command_drain_playback_stream },
161 [PA_COMMAND_CREATE_RECORD_STREAM] = { command_create_record_stream },
162 [PA_COMMAND_DELETE_RECORD_STREAM] = { command_delete_stream },
163 [PA_COMMAND_AUTH] = { command_auth },
164 [PA_COMMAND_REQUEST] = { NULL },
165 [PA_COMMAND_EXIT] = { command_exit },
166 [PA_COMMAND_SET_CLIENT_NAME] = { command_set_client_name },
167 [PA_COMMAND_LOOKUP_SINK] = { command_lookup },
168 [PA_COMMAND_LOOKUP_SOURCE] = { command_lookup },
169 [PA_COMMAND_STAT] = { command_stat },
170 [PA_COMMAND_GET_PLAYBACK_LATENCY] = { command_get_playback_latency },
171 [PA_COMMAND_GET_RECORD_LATENCY] = { command_get_record_latency },
172 [PA_COMMAND_CREATE_UPLOAD_STREAM] = { command_create_upload_stream },
173 [PA_COMMAND_DELETE_UPLOAD_STREAM] = { command_delete_stream },
174 [PA_COMMAND_FINISH_UPLOAD_STREAM] = { command_finish_upload_stream },
175 [PA_COMMAND_PLAY_SAMPLE] = { command_play_sample },
176 [PA_COMMAND_REMOVE_SAMPLE] = { command_remove_sample },
177 [PA_COMMAND_GET_SINK_INFO] = { command_get_info },
178 [PA_COMMAND_GET_SOURCE_INFO] = { command_get_info },
179 [PA_COMMAND_GET_CLIENT_INFO] = { command_get_info },
180 [PA_COMMAND_GET_MODULE_INFO] = { command_get_info },
181 [PA_COMMAND_GET_SINK_INPUT_INFO] = { command_get_info },
182 [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = { command_get_info },
183 [PA_COMMAND_GET_SAMPLE_INFO] = { command_get_info },
184 [PA_COMMAND_GET_SINK_INFO_LIST] = { command_get_info_list },
185 [PA_COMMAND_GET_SOURCE_INFO_LIST] = { command_get_info_list },
186 [PA_COMMAND_GET_MODULE_INFO_LIST] = { command_get_info_list },
187 [PA_COMMAND_GET_CLIENT_INFO_LIST] = { command_get_info_list },
188 [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = { command_get_info_list },
189 [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = { command_get_info_list },
190 [PA_COMMAND_GET_SAMPLE_INFO_LIST] = { command_get_info_list },
191 [PA_COMMAND_GET_SERVER_INFO] = { command_get_server_info },
192 [PA_COMMAND_SUBSCRIBE] = { command_subscribe },
193 [PA_COMMAND_SET_SINK_VOLUME] = { command_set_volume },
194 [PA_COMMAND_SET_SINK_INPUT_VOLUME] = { command_set_volume },
195 [PA_COMMAND_CORK_PLAYBACK_STREAM] = { command_cork_playback_stream },
196 [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = { command_flush_or_trigger_playback_stream },
197 [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = { command_flush_or_trigger_playback_stream },
198 [PA_COMMAND_SET_DEFAULT_SINK] = { command_set_default_sink_or_source },
199 [PA_COMMAND_SET_DEFAULT_SOURCE] = { command_set_default_sink_or_source },
200 [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = { command_set_stream_name },
201 [PA_COMMAND_SET_RECORD_STREAM_NAME] = { command_set_stream_name },
202 [PA_COMMAND_KILL_CLIENT] = { command_kill },
203 [PA_COMMAND_KILL_SINK_INPUT] = { command_kill },
204 [PA_COMMAND_KILL_SOURCE_OUTPUT] = { command_kill },
205 [PA_COMMAND_LOAD_MODULE] = { command_load_module },
206 [PA_COMMAND_UNLOAD_MODULE] = { command_unload_module },
207 [PA_COMMAND_GET_AUTOLOAD_INFO] = { command_get_autoload_info },
208 [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = { command_get_autoload_info_list },
209 [PA_COMMAND_ADD_AUTOLOAD] = { command_add_autoload },
210 [PA_COMMAND_REMOVE_AUTOLOAD] = { command_remove_autoload },
211 };
212
213 /* structure management */
214
215 static struct upload_stream* upload_stream_new(struct connection *c, const struct pa_sample_spec *ss, const char *name, size_t length) {
216 struct upload_stream *s;
217 assert(c && ss && name && length);
218
219 s = pa_xmalloc(sizeof(struct upload_stream));
220 s->type = UPLOAD_STREAM;
221 s->connection = c;
222 s->sample_spec = *ss;
223 s->name = pa_xstrdup(name);
224
225 s->memchunk.memblock = NULL;
226 s->memchunk.index = 0;
227 s->memchunk.length = 0;
228
229 s->length = length;
230
231 pa_idxset_put(c->output_streams, s, &s->index);
232 return s;
233 }
234
235 static void upload_stream_free(struct upload_stream *o) {
236 assert(o && o->connection);
237
238 pa_idxset_remove_by_data(o->connection->output_streams, o, NULL);
239
240 pa_xfree(o->name);
241
242 if (o->memchunk.memblock)
243 pa_memblock_unref(o->memchunk.memblock);
244
245 pa_xfree(o);
246 }
247
248 static struct record_stream* record_stream_new(struct connection *c, struct pa_source *source, const struct pa_sample_spec *ss, const char *name, size_t maxlength, size_t fragment_size) {
249 struct record_stream *s;
250 struct pa_source_output *source_output;
251 size_t base;
252 assert(c && source && ss && name && maxlength);
253
254 if (!(source_output = pa_source_output_new(source, name, ss, -1)))
255 return NULL;
256
257 s = pa_xmalloc(sizeof(struct record_stream));
258 s->connection = c;
259 s->source_output = source_output;
260 s->source_output->push = source_output_push_cb;
261 s->source_output->kill = source_output_kill_cb;
262 s->source_output->get_latency = source_output_get_latency_cb;
263 s->source_output->userdata = s;
264 s->source_output->owner = c->protocol->module;
265 s->source_output->client = c->client;
266
267 s->memblockq = pa_memblockq_new(maxlength, 0, base = pa_frame_size(ss), 0, 0, c->protocol->core->memblock_stat);
268 assert(s->memblockq);
269
270 s->fragment_size = (fragment_size/base)*base;
271 if (!s->fragment_size)
272 s->fragment_size = base;
273
274 pa_idxset_put(c->record_streams, s, &s->index);
275 return s;
276 }
277
278 static void record_stream_free(struct record_stream* r) {
279 assert(r && r->connection);
280
281 pa_idxset_remove_by_data(r->connection->record_streams, r, NULL);
282 pa_source_output_disconnect(r->source_output);
283 pa_source_output_unref(r->source_output);
284 pa_memblockq_free(r->memblockq);
285 pa_xfree(r);
286 }
287
288 static struct playback_stream* playback_stream_new(struct connection *c, struct pa_sink *sink, const struct pa_sample_spec *ss, const char *name,
289 size_t maxlength,
290 size_t tlength,
291 size_t prebuf,
292 size_t minreq,
293 pa_volume_t volume) {
294 struct playback_stream *s;
295 struct pa_sink_input *sink_input;
296 assert(c && sink && ss && name && maxlength);
297
298 if (!(sink_input = pa_sink_input_new(sink, name, ss, 0, -1)))
299 return NULL;
300
301 s = pa_xmalloc(sizeof(struct playback_stream));
302 s->type = PLAYBACK_STREAM;
303 s->connection = c;
304 s->sink_input = sink_input;
305
306 s->sink_input->peek = sink_input_peek_cb;
307 s->sink_input->drop = sink_input_drop_cb;
308 s->sink_input->kill = sink_input_kill_cb;
309 s->sink_input->get_latency = sink_input_get_latency_cb;
310 s->sink_input->userdata = s;
311 s->sink_input->owner = c->protocol->module;
312 s->sink_input->client = c->client;
313
314 s->memblockq = pa_memblockq_new(maxlength, tlength, pa_frame_size(ss), prebuf, minreq, c->protocol->core->memblock_stat);
315 assert(s->memblockq);
316
317 s->requested_bytes = 0;
318 s->drain_request = 0;
319
320 s->sink_input->volume = volume;
321
322 pa_idxset_put(c->output_streams, s, &s->index);
323 return s;
324 }
325
326 static void playback_stream_free(struct playback_stream* p) {
327 assert(p && p->connection);
328
329 if (p->drain_request)
330 pa_pstream_send_error(p->connection->pstream, p->drain_tag, PA_ERROR_NOENTITY);
331
332 pa_idxset_remove_by_data(p->connection->output_streams, p, NULL);
333 pa_sink_input_disconnect(p->sink_input);
334 pa_sink_input_unref(p->sink_input);
335 pa_memblockq_free(p->memblockq);
336 pa_xfree(p);
337 }
338
339 static void connection_free(struct connection *c) {
340 struct record_stream *r;
341 struct output_stream *o;
342 assert(c && c->protocol);
343
344 pa_idxset_remove_by_data(c->protocol->connections, c, NULL);
345 while ((r = pa_idxset_first(c->record_streams, NULL)))
346 record_stream_free(r);
347 pa_idxset_free(c->record_streams, NULL, NULL);
348
349 while ((o = pa_idxset_first(c->output_streams, NULL)))
350 if (o->type == PLAYBACK_STREAM)
351 playback_stream_free((struct playback_stream*) o);
352 else
353 upload_stream_free((struct upload_stream*) o);
354 pa_idxset_free(c->output_streams, NULL, NULL);
355
356 pa_pdispatch_unref(c->pdispatch);
357 pa_pstream_close(c->pstream);
358 pa_pstream_unref(c->pstream);
359 pa_client_free(c->client);
360
361 if (c->subscription)
362 pa_subscription_free(c->subscription);
363
364 pa_xfree(c);
365 }
366
367 static void request_bytes(struct playback_stream *s) {
368 struct pa_tagstruct *t;
369 size_t l;
370 assert(s);
371
372 if (!(l = pa_memblockq_missing(s->memblockq)))
373 return;
374
375 if (l <= s->requested_bytes)
376 return;
377
378 l -= s->requested_bytes;
379
380 if (l < pa_memblockq_get_minreq(s->memblockq))
381 return;
382
383 s->requested_bytes += l;
384
385 t = pa_tagstruct_new(NULL, 0);
386 assert(t);
387 pa_tagstruct_putu32(t, PA_COMMAND_REQUEST);
388 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
389 pa_tagstruct_putu32(t, s->index);
390 pa_tagstruct_putu32(t, l);
391 pa_pstream_send_tagstruct(s->connection->pstream, t);
392
393 /* pa_log(__FILE__": Requesting %u bytes\n", l); */
394 }
395
396 static void send_memblock(struct connection *c) {
397 uint32_t start;
398 struct record_stream *r;
399
400 start = PA_IDXSET_INVALID;
401 for (;;) {
402 struct pa_memchunk chunk;
403
404 if (!(r = pa_idxset_rrobin(c->record_streams, &c->rrobin_index)))
405 return;
406
407 if (start == PA_IDXSET_INVALID)
408 start = c->rrobin_index;
409 else if (start == c->rrobin_index)
410 return;
411
412 if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) {
413 struct pa_memchunk schunk = chunk;
414
415 if (schunk.length > r->fragment_size)
416 schunk.length = r->fragment_size;
417
418 pa_pstream_send_memblock(c->pstream, r->index, 0, &schunk);
419 pa_memblockq_drop(r->memblockq, &chunk, schunk.length);
420 pa_memblock_unref(schunk.memblock);
421
422 return;
423 }
424 }
425 }
426
427 static void send_playback_stream_killed(struct playback_stream *p) {
428 struct pa_tagstruct *t;
429 assert(p);
430
431 t = pa_tagstruct_new(NULL, 0);
432 assert(t);
433 pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED);
434 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
435 pa_tagstruct_putu32(t, p->index);
436 pa_pstream_send_tagstruct(p->connection->pstream, t);
437 }
438
439 static void send_record_stream_killed(struct record_stream *r) {
440 struct pa_tagstruct *t;
441 assert(r);
442
443 t = pa_tagstruct_new(NULL, 0);
444 assert(t);
445 pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED);
446 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
447 pa_tagstruct_putu32(t, r->index);
448 pa_pstream_send_tagstruct(r->connection->pstream, t);
449 }
450
451 /*** sinkinput callbacks ***/
452
453 static int sink_input_peek_cb(struct pa_sink_input *i, struct pa_memchunk *chunk) {
454 struct playback_stream *s;
455 assert(i && i->userdata && chunk);
456 s = i->userdata;
457
458 if (pa_memblockq_peek(s->memblockq, chunk) < 0)
459 return -1;
460
461 return 0;
462 }
463
464 static void sink_input_drop_cb(struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length) {
465 struct playback_stream *s;
466 assert(i && i->userdata && length);
467 s = i->userdata;
468
469 pa_memblockq_drop(s->memblockq, chunk, length);
470 request_bytes(s);
471
472 if (s->drain_request && !pa_memblockq_is_readable(s->memblockq)) {
473 pa_pstream_send_simple_ack(s->connection->pstream, s->drain_tag);
474 s->drain_request = 0;
475 }
476
477 /*pa_log(__FILE__": after_drop: %u\n", pa_memblockq_get_length(s->memblockq));*/
478 }
479
480 static void sink_input_kill_cb(struct pa_sink_input *i) {
481 assert(i && i->userdata);
482 send_playback_stream_killed((struct playback_stream *) i->userdata);
483 playback_stream_free((struct playback_stream *) i->userdata);
484 }
485
486 static pa_usec_t sink_input_get_latency_cb(struct pa_sink_input *i) {
487 struct playback_stream *s;
488 assert(i && i->userdata);
489 s = i->userdata;
490
491 /*pa_log(__FILE__": get_latency: %u\n", pa_memblockq_get_length(s->memblockq));*/
492
493 return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &s->sink_input->sample_spec);
494 }
495
496 /*** source_output callbacks ***/
497
498 static void source_output_push_cb(struct pa_source_output *o, const struct pa_memchunk *chunk) {
499 struct record_stream *s;
500 assert(o && o->userdata && chunk);
501 s = o->userdata;
502
503 pa_memblockq_push_align(s->memblockq, chunk, 0);
504 if (!pa_pstream_is_pending(s->connection->pstream))
505 send_memblock(s->connection);
506 }
507
508 static void source_output_kill_cb(struct pa_source_output *o) {
509 assert(o && o->userdata);
510 send_record_stream_killed((struct record_stream *) o->userdata);
511 record_stream_free((struct record_stream *) o->userdata);
512 }
513
514 static pa_usec_t source_output_get_latency_cb(struct pa_source_output *o) {
515 struct record_stream *s;
516 assert(o && o->userdata);
517 s = o->userdata;
518
519 /*pa_log(__FILE__": get_latency: %u\n", pa_memblockq_get_length(s->memblockq));*/
520
521 return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec);
522 }
523
524 /*** pdispatch callbacks ***/
525
526 static void protocol_error(struct connection *c) {
527 pa_log(__FILE__": protocol error, kicking client\n");
528 connection_free(c);
529 }
530
531 static void command_create_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
532 struct connection *c = userdata;
533 struct playback_stream *s;
534 size_t maxlength, tlength, prebuf, minreq;
535 uint32_t sink_index;
536 const char *name, *sink_name;
537 struct pa_sample_spec ss;
538 struct pa_tagstruct *reply;
539 struct pa_sink *sink;
540 pa_volume_t volume;
541 assert(c && t && c->protocol && c->protocol->core);
542
543 if (pa_tagstruct_gets(t, &name) < 0 ||
544 pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
545 pa_tagstruct_getu32(t, &sink_index) < 0 ||
546 pa_tagstruct_gets(t, &sink_name) < 0 ||
547 pa_tagstruct_getu32(t, &maxlength) < 0 ||
548 pa_tagstruct_getu32(t, &tlength) < 0 ||
549 pa_tagstruct_getu32(t, &prebuf) < 0 ||
550 pa_tagstruct_getu32(t, &minreq) < 0 ||
551 pa_tagstruct_getu32(t, &volume) < 0 ||
552 !pa_tagstruct_eof(t)) {
553 protocol_error(c);
554 return;
555 }
556
557 if (!c->authorized) {
558 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
559 return;
560 }
561
562 if (sink_index != (uint32_t) -1)
563 sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
564 else
565 sink = pa_namereg_get(c->protocol->core, *sink_name ? sink_name : NULL, PA_NAMEREG_SINK, 1);
566
567 if (!sink) {
568 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
569 return;
570 }
571
572 if (!(s = playback_stream_new(c, sink, &ss, name, maxlength, tlength, prebuf, minreq, volume))) {
573 pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
574 return;
575 }
576
577 reply = pa_tagstruct_new(NULL, 0);
578 assert(reply);
579 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
580 pa_tagstruct_putu32(reply, tag);
581 pa_tagstruct_putu32(reply, s->index);
582 assert(s->sink_input);
583 pa_tagstruct_putu32(reply, s->sink_input->index);
584 pa_tagstruct_putu32(reply, s->requested_bytes = pa_memblockq_missing(s->memblockq));
585 pa_pstream_send_tagstruct(c->pstream, reply);
586 request_bytes(s);
587 }
588
589 static void command_delete_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
590 struct connection *c = userdata;
591 uint32_t channel;
592 assert(c && t);
593
594 if (pa_tagstruct_getu32(t, &channel) < 0 ||
595 !pa_tagstruct_eof(t)) {
596 protocol_error(c);
597 return;
598 }
599
600 if (!c->authorized) {
601 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
602 return;
603 }
604
605 if (command == PA_COMMAND_DELETE_PLAYBACK_STREAM) {
606 struct playback_stream *s;
607 if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != PLAYBACK_STREAM)) {
608 pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
609 return;
610 }
611
612 playback_stream_free(s);
613 } else if (command == PA_COMMAND_DELETE_RECORD_STREAM) {
614 struct record_stream *s;
615 if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
616 pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
617 return;
618 }
619
620 record_stream_free(s);
621 } else {
622 struct upload_stream *s;
623 assert(command == PA_COMMAND_DELETE_UPLOAD_STREAM);
624 if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) {
625 pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
626 return;
627 }
628
629 upload_stream_free(s);
630 }
631
632 pa_pstream_send_simple_ack(c->pstream, tag);
633 }
634
635 static void command_create_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
636 struct connection *c = userdata;
637 struct record_stream *s;
638 size_t maxlength, fragment_size;
639 uint32_t source_index;
640 const char *name, *source_name;
641 struct pa_sample_spec ss;
642 struct pa_tagstruct *reply;
643 struct pa_source *source;
644 assert(c && t && c->protocol && c->protocol->core);
645
646 if (pa_tagstruct_gets(t, &name) < 0 ||
647 pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
648 pa_tagstruct_getu32(t, &source_index) < 0 ||
649 pa_tagstruct_gets(t, &source_name) < 0 ||
650 pa_tagstruct_getu32(t, &maxlength) < 0 ||
651 pa_tagstruct_getu32(t, &fragment_size) < 0 ||
652 !pa_tagstruct_eof(t)) {
653 protocol_error(c);
654 return;
655 }
656
657 if (!c->authorized) {
658 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
659 return;
660 }
661
662 if (source_index != (uint32_t) -1)
663 source = pa_idxset_get_by_index(c->protocol->core->sources, source_index);
664 else
665 source = pa_namereg_get(c->protocol->core, *source_name ? source_name : NULL, PA_NAMEREG_SOURCE, 1);
666
667 if (!source) {
668 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
669 return;
670 }
671
672 if (!(s = record_stream_new(c, source, &ss, name, maxlength, fragment_size))) {
673 pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
674 return;
675 }
676
677 reply = pa_tagstruct_new(NULL, 0);
678 assert(reply);
679 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
680 pa_tagstruct_putu32(reply, tag);
681 pa_tagstruct_putu32(reply, s->index);
682 assert(s->source_output);
683 pa_tagstruct_putu32(reply, s->source_output->index);
684 pa_pstream_send_tagstruct(c->pstream, reply);
685 }
686
687 static void command_exit(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
688 struct connection *c = userdata;
689 assert(c && t);
690
691 if (!pa_tagstruct_eof(t)) {
692 protocol_error(c);
693 return;
694 }
695
696 if (!c->authorized) {
697 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
698 return;
699 }
700
701 assert(c->protocol && c->protocol->core && c->protocol->core->mainloop);
702 c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0);
703 pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
704 return;
705 }
706
707 static void command_auth(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
708 struct connection *c = userdata;
709 const void*cookie;
710 assert(c && t);
711
712 if (pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
713 !pa_tagstruct_eof(t)) {
714 protocol_error(c);
715 return;
716 }
717
718 if (!c->authorized) {
719 if (memcmp(c->protocol->auth_cookie, cookie, PA_NATIVE_COOKIE_LENGTH) != 0) {
720 pa_log(__FILE__": Denied access to client with invalid authorization key.\n");
721 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
722 return;
723 }
724
725 c->authorized = 1;
726 }
727
728 pa_pstream_send_simple_ack(c->pstream, tag);
729 return;
730 }
731
732 static void command_set_client_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
733 struct connection *c = userdata;
734 const char *name;
735 assert(c && t);
736
737 if (pa_tagstruct_gets(t, &name) < 0 ||
738 !pa_tagstruct_eof(t)) {
739 protocol_error(c);
740 return;
741 }
742
743 pa_client_set_name(c->client, name);
744 pa_pstream_send_simple_ack(c->pstream, tag);
745 return;
746 }
747
748 static void command_lookup(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
749 struct connection *c = userdata;
750 const char *name;
751 uint32_t index = PA_IDXSET_INVALID;
752 assert(c && t);
753
754 if (pa_tagstruct_gets(t, &name) < 0 ||
755 !pa_tagstruct_eof(t)) {
756 protocol_error(c);
757 return;
758 }
759
760 if (!c->authorized) {
761 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
762 return;
763 }
764
765 if (command == PA_COMMAND_LOOKUP_SINK) {
766 struct pa_sink *sink;
767 if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1)))
768 index = sink->index;
769 } else {
770 struct pa_source *source;
771 assert(command == PA_COMMAND_LOOKUP_SOURCE);
772 if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1)))
773 index = source->index;
774 }
775
776 if (index == PA_IDXSET_INVALID)
777 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
778 else {
779 struct pa_tagstruct *reply;
780 reply = pa_tagstruct_new(NULL, 0);
781 assert(reply);
782 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
783 pa_tagstruct_putu32(reply, tag);
784 pa_tagstruct_putu32(reply, index);
785 pa_pstream_send_tagstruct(c->pstream, reply);
786 }
787 }
788
789 static void command_drain_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
790 struct connection *c = userdata;
791 uint32_t index;
792 struct playback_stream *s;
793 assert(c && t);
794
795 if (pa_tagstruct_getu32(t, &index) < 0 ||
796 !pa_tagstruct_eof(t)) {
797 protocol_error(c);
798 return;
799 }
800
801 if (!c->authorized) {
802 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
803 return;
804 }
805
806 if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
807 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
808 return;
809 }
810
811 s->drain_request = 0;
812
813 pa_memblockq_prebuf_disable(s->memblockq);
814
815 if (!pa_memblockq_is_readable(s->memblockq)) {
816 pa_pstream_send_simple_ack(c->pstream, tag);
817 } else {
818 s->drain_request = 1;
819 s->drain_tag = tag;
820
821 pa_sink_notify(s->sink_input->sink);
822 }
823 }
824
825 static void command_stat(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
826 struct connection *c = userdata;
827 struct pa_tagstruct *reply;
828 assert(c && t);
829
830 if (!pa_tagstruct_eof(t)) {
831 protocol_error(c);
832 return;
833 }
834
835 if (!c->authorized) {
836 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
837 return;
838 }
839
840 reply = pa_tagstruct_new(NULL, 0);
841 assert(reply);
842 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
843 pa_tagstruct_putu32(reply, tag);
844 pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total);
845 pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total_size);
846 pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated);
847 pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated_size);
848 pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
849 pa_pstream_send_tagstruct(c->pstream, reply);
850 }
851
852 static void command_get_playback_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
853 struct connection *c = userdata;
854 struct pa_tagstruct *reply;
855 struct playback_stream *s;
856 struct timeval tv, now;
857 uint32_t index;
858 assert(c && t);
859
860 if (pa_tagstruct_getu32(t, &index) < 0 ||
861 pa_tagstruct_get_timeval(t, &tv) < 0 ||
862 !pa_tagstruct_eof(t)) {
863 protocol_error(c);
864 return;
865 }
866
867 if (!c->authorized) {
868 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
869 return;
870 }
871
872 if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
873 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
874 return;
875 }
876
877 reply = pa_tagstruct_new(NULL, 0);
878 assert(reply);
879 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
880 pa_tagstruct_putu32(reply, tag);
881 pa_tagstruct_put_usec(reply, pa_sink_input_get_latency(s->sink_input));
882 pa_tagstruct_put_usec(reply, pa_sink_get_latency(s->sink_input->sink));
883 pa_tagstruct_put_usec(reply, 0);
884 pa_tagstruct_put_boolean(reply, pa_memblockq_is_readable(s->memblockq));
885 pa_tagstruct_putu32(reply, pa_memblockq_get_length(s->memblockq));
886 pa_tagstruct_put_timeval(reply, &tv);
887 gettimeofday(&now, NULL);
888 pa_tagstruct_put_timeval(reply, &now);
889 pa_pstream_send_tagstruct(c->pstream, reply);
890 }
891
892 static void command_get_record_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
893 struct connection *c = userdata;
894 struct pa_tagstruct *reply;
895 struct record_stream *s;
896 struct timeval tv, now;
897 uint32_t index;
898 assert(c && t);
899
900 if (pa_tagstruct_getu32(t, &index) < 0 ||
901 pa_tagstruct_get_timeval(t, &tv) < 0 ||
902 !pa_tagstruct_eof(t)) {
903 protocol_error(c);
904 return;
905 }
906
907 if (!c->authorized) {
908 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
909 return;
910 }
911
912 if (!(s = pa_idxset_get_by_index(c->record_streams, index))) {
913 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
914 return;
915 }
916
917 reply = pa_tagstruct_new(NULL, 0);
918 assert(reply);
919 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
920 pa_tagstruct_putu32(reply, tag);
921 pa_tagstruct_put_usec(reply, pa_source_output_get_latency(s->source_output));
922 pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
923 pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
924 pa_tagstruct_put_boolean(reply, 0);
925 pa_tagstruct_putu32(reply, pa_memblockq_get_length(s->memblockq));
926 pa_tagstruct_put_timeval(reply, &tv);
927 gettimeofday(&now, NULL);
928 pa_tagstruct_put_timeval(reply, &now);
929 pa_pstream_send_tagstruct(c->pstream, reply);
930 }
931
932
933 static void command_create_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
934 struct connection *c = userdata;
935 struct upload_stream *s;
936 size_t length;
937 const char *name;
938 struct pa_sample_spec ss;
939 struct pa_tagstruct *reply;
940 assert(c && t && c->protocol && c->protocol->core);
941
942 if (pa_tagstruct_gets(t, &name) < 0 ||
943 pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
944 pa_tagstruct_getu32(t, &length) < 0 ||
945 !pa_tagstruct_eof(t)) {
946 protocol_error(c);
947 return;
948 }
949
950 if (!c->authorized) {
951 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
952 return;
953 }
954
955 if ((length % pa_frame_size(&ss)) != 0 || length <= 0 || !*name) {
956 pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
957 return;
958 }
959
960 if (!(s = upload_stream_new(c, &ss, name, length))) {
961 pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
962 return;
963 }
964
965 reply = pa_tagstruct_new(NULL, 0);
966 assert(reply);
967 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
968 pa_tagstruct_putu32(reply, tag);
969 pa_tagstruct_putu32(reply, s->index);
970 pa_pstream_send_tagstruct(c->pstream, reply);
971
972 reply = pa_tagstruct_new(NULL, 0);
973 assert(reply);
974 pa_tagstruct_putu32(reply, PA_COMMAND_REQUEST);
975 pa_tagstruct_putu32(reply, (uint32_t) -1); /* tag */
976 pa_tagstruct_putu32(reply, s->index);
977 pa_tagstruct_putu32(reply, length);
978 pa_pstream_send_tagstruct(c->pstream, reply);
979 }
980
981 static void command_finish_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
982 struct connection *c = userdata;
983 uint32_t channel;
984 struct upload_stream *s;
985 uint32_t index;
986 assert(c && t);
987
988 if (pa_tagstruct_getu32(t, &channel) < 0 ||
989 !pa_tagstruct_eof(t)) {
990 protocol_error(c);
991 return;
992 }
993
994 if (!c->authorized) {
995 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
996 return;
997 }
998
999 if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) {
1000 pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
1001 return;
1002 }
1003
1004 pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->memchunk, &index);
1005 pa_pstream_send_simple_ack(c->pstream, tag);
1006 upload_stream_free(s);
1007 }
1008
1009 static void command_play_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1010 struct connection *c = userdata;
1011 uint32_t sink_index, volume;
1012 struct pa_sink *sink;
1013 const char *name, *sink_name;
1014 assert(c && t);
1015
1016 if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
1017 pa_tagstruct_gets(t, &sink_name) < 0 ||
1018 pa_tagstruct_getu32(t, &volume) < 0 ||
1019 pa_tagstruct_gets(t, &name) < 0 ||
1020 !pa_tagstruct_eof(t)) {
1021 protocol_error(c);
1022 return;
1023 }
1024
1025 if (!c->authorized) {
1026 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1027 return;
1028 }
1029
1030 if (sink_index != (uint32_t) -1)
1031 sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
1032 else
1033 sink = pa_namereg_get(c->protocol->core, *sink_name ? sink_name : NULL, PA_NAMEREG_SINK, 1);
1034
1035 if (!sink) {
1036 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1037 return;
1038 }
1039
1040 if (pa_scache_play_item(c->protocol->core, name, sink, volume) < 0) {
1041 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1042 return;
1043 }
1044
1045 pa_pstream_send_simple_ack(c->pstream, tag);
1046 }
1047
1048 static void command_remove_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1049 struct connection *c = userdata;
1050 const char *name;
1051 assert(c && t);
1052
1053 if (pa_tagstruct_gets(t, &name) < 0 ||
1054 !pa_tagstruct_eof(t)) {
1055 protocol_error(c);
1056 return;
1057 }
1058
1059 if (!c->authorized) {
1060 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1061 return;
1062 }
1063
1064 if (pa_scache_remove_item(c->protocol->core, name) < 0) {
1065 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1066 return;
1067 }
1068
1069 pa_pstream_send_simple_ack(c->pstream, tag);
1070 }
1071
1072 static void sink_fill_tagstruct(struct pa_tagstruct *t, struct pa_sink *sink) {
1073 assert(t && sink);
1074 pa_tagstruct_putu32(t, sink->index);
1075 pa_tagstruct_puts(t, sink->name);
1076 pa_tagstruct_puts(t, sink->description ? sink->description : "");
1077 pa_tagstruct_put_sample_spec(t, &sink->sample_spec);
1078 pa_tagstruct_putu32(t, sink->owner ? sink->owner->index : (uint32_t) -1);
1079 pa_tagstruct_putu32(t, sink->volume);
1080 pa_tagstruct_putu32(t, sink->monitor_source->index);
1081 pa_tagstruct_puts(t, sink->monitor_source->name);
1082 pa_tagstruct_put_usec(t, pa_sink_get_latency(sink));
1083 }
1084
1085 static void source_fill_tagstruct(struct pa_tagstruct *t, struct pa_source *source) {
1086 assert(t && source);
1087 pa_tagstruct_putu32(t, source->index);
1088 pa_tagstruct_puts(t, source->name);
1089 pa_tagstruct_puts(t, source->description ? source->description : "");
1090 pa_tagstruct_put_sample_spec(t, &source->sample_spec);
1091 pa_tagstruct_putu32(t, source->owner ? source->owner->index : (uint32_t) -1);
1092 pa_tagstruct_putu32(t, source->monitor_of ? source->monitor_of->index : (uint32_t) -1);
1093 pa_tagstruct_puts(t, source->monitor_of ? source->monitor_of->name : "");
1094 pa_tagstruct_put_usec(t, pa_source_get_latency(source));
1095 }
1096
1097 static void client_fill_tagstruct(struct pa_tagstruct *t, struct pa_client *client) {
1098 assert(t && client);
1099 pa_tagstruct_putu32(t, client->index);
1100 pa_tagstruct_puts(t, client->name);
1101 pa_tagstruct_puts(t, client->protocol_name);
1102 pa_tagstruct_putu32(t, client->owner ? client->owner->index : (uint32_t) -1);
1103 }
1104
1105 static void module_fill_tagstruct(struct pa_tagstruct *t, struct pa_module *module) {
1106 assert(t && module);
1107 pa_tagstruct_putu32(t, module->index);
1108 pa_tagstruct_puts(t, module->name);
1109 pa_tagstruct_puts(t, module->argument ? module->argument : "");
1110 pa_tagstruct_putu32(t, module->n_used);
1111 pa_tagstruct_put_boolean(t, module->auto_unload);
1112 }
1113
1114 static void sink_input_fill_tagstruct(struct pa_tagstruct *t, struct pa_sink_input *s) {
1115 assert(t && s);
1116 pa_tagstruct_putu32(t, s->index);
1117 pa_tagstruct_puts(t, s->name ? s->name : "");
1118 pa_tagstruct_putu32(t, s->owner ? s->owner->index : (uint32_t) -1);
1119 pa_tagstruct_putu32(t, s->client ? s->client->index : (uint32_t) -1);
1120 pa_tagstruct_putu32(t, s->sink->index);
1121 pa_tagstruct_put_sample_spec(t, &s->sample_spec);
1122 pa_tagstruct_putu32(t, s->volume);
1123 pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s));
1124 pa_tagstruct_put_usec(t, pa_sink_get_latency(s->sink));
1125 }
1126
1127 static void source_output_fill_tagstruct(struct pa_tagstruct *t, struct pa_source_output *s) {
1128 assert(t && s);
1129 pa_tagstruct_putu32(t, s->index);
1130 pa_tagstruct_puts(t, s->name ? s->name : "");
1131 pa_tagstruct_putu32(t, s->owner ? s->owner->index : (uint32_t) -1);
1132 pa_tagstruct_putu32(t, s->client ? s->client->index : (uint32_t) -1);
1133 pa_tagstruct_putu32(t, s->source->index);
1134 pa_tagstruct_put_sample_spec(t, &s->sample_spec);
1135 pa_tagstruct_put_usec(t, pa_source_output_get_latency(s));
1136 pa_tagstruct_put_usec(t, pa_source_get_latency(s->source));
1137 }
1138
1139 static void scache_fill_tagstruct(struct pa_tagstruct *t, struct pa_scache_entry *e) {
1140 assert(t && e);
1141 pa_tagstruct_putu32(t, e->index);
1142 pa_tagstruct_puts(t, e->name);
1143 pa_tagstruct_putu32(t, e->volume);
1144 pa_tagstruct_put_usec(t, pa_bytes_to_usec(e->memchunk.length, &e->sample_spec));
1145 pa_tagstruct_put_sample_spec(t, &e->sample_spec);
1146 pa_tagstruct_putu32(t, e->memchunk.length);
1147 pa_tagstruct_put_boolean(t, e->lazy);
1148 pa_tagstruct_puts(t, e->filename);
1149 }
1150
1151 static void command_get_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1152 struct connection *c = userdata;
1153 uint32_t index;
1154 struct pa_sink *sink = NULL;
1155 struct pa_source *source = NULL;
1156 struct pa_client *client = NULL;
1157 struct pa_module *module = NULL;
1158 struct pa_sink_input *si = NULL;
1159 struct pa_source_output *so = NULL;
1160 struct pa_scache_entry *sce = NULL;
1161 const char *name;
1162 struct pa_tagstruct *reply;
1163 assert(c && t);
1164
1165
1166 if (pa_tagstruct_getu32(t, &index) < 0 ||
1167 (command != PA_COMMAND_GET_CLIENT_INFO &&
1168 command != PA_COMMAND_GET_MODULE_INFO &&
1169 command != PA_COMMAND_GET_SINK_INPUT_INFO &&
1170 command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
1171 pa_tagstruct_gets(t, &name) < 0) ||
1172 !pa_tagstruct_eof(t)) {
1173 protocol_error(c);
1174 return;
1175 }
1176
1177 if (!c->authorized) {
1178 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1179 return;
1180 }
1181
1182 if (command == PA_COMMAND_GET_SINK_INFO) {
1183 if (index != (uint32_t) -1)
1184 sink = pa_idxset_get_by_index(c->protocol->core->sinks, index);
1185 else
1186 sink = pa_namereg_get(c->protocol->core, *name ? name : NULL, PA_NAMEREG_SINK, 1);
1187 } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
1188 if (index != (uint32_t) -1)
1189 source = pa_idxset_get_by_index(c->protocol->core->sources, index);
1190 else
1191 source = pa_namereg_get(c->protocol->core, *name ? name : NULL, PA_NAMEREG_SOURCE, 1);
1192 } else if (command == PA_COMMAND_GET_CLIENT_INFO)
1193 client = pa_idxset_get_by_index(c->protocol->core->clients, index);
1194 else if (command == PA_COMMAND_GET_MODULE_INFO)
1195 module = pa_idxset_get_by_index(c->protocol->core->modules, index);
1196 else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
1197 si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index);
1198 else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
1199 so = pa_idxset_get_by_index(c->protocol->core->source_outputs, index);
1200 else {
1201 assert(command == PA_COMMAND_GET_SAMPLE_INFO && name);
1202 if (index != (uint32_t) -1)
1203 sce = pa_idxset_get_by_index(c->protocol->core->scache, index);
1204 else
1205 sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0);
1206 }
1207
1208 if (!sink && !source && !client && !module && !si && !so && !sce) {
1209 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1210 return;
1211 }
1212
1213 reply = pa_tagstruct_new(NULL, 0);
1214 assert(reply);
1215 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1216 pa_tagstruct_putu32(reply, tag);
1217 if (sink)
1218 sink_fill_tagstruct(reply, sink);
1219 else if (source)
1220 source_fill_tagstruct(reply, source);
1221 else if (client)
1222 client_fill_tagstruct(reply, client);
1223 else if (module)
1224 module_fill_tagstruct(reply, module);
1225 else if (si)
1226 sink_input_fill_tagstruct(reply, si);
1227 else if (so)
1228 source_output_fill_tagstruct(reply, so);
1229 else
1230 scache_fill_tagstruct(reply, sce);
1231 pa_pstream_send_tagstruct(c->pstream, reply);
1232 }
1233
1234 static void command_get_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1235 struct connection *c = userdata;
1236 struct pa_idxset *i;
1237 uint32_t index;
1238 void *p;
1239 struct pa_tagstruct *reply;
1240 assert(c && t);
1241
1242 if (!pa_tagstruct_eof(t)) {
1243 protocol_error(c);
1244 return;
1245 }
1246
1247 if (!c->authorized) {
1248 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1249 return;
1250 }
1251
1252 reply = pa_tagstruct_new(NULL, 0);
1253 assert(reply);
1254 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1255 pa_tagstruct_putu32(reply, tag);
1256
1257 if (command == PA_COMMAND_GET_SINK_INFO_LIST)
1258 i = c->protocol->core->sinks;
1259 else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
1260 i = c->protocol->core->sources;
1261 else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
1262 i = c->protocol->core->clients;
1263 else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
1264 i = c->protocol->core->modules;
1265 else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
1266 i = c->protocol->core->sink_inputs;
1267 else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
1268 i = c->protocol->core->source_outputs;
1269 else {
1270 assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
1271 i = c->protocol->core->scache;
1272 }
1273
1274 if (i) {
1275 for (p = pa_idxset_first(i, &index); p; p = pa_idxset_next(i, &index)) {
1276 if (command == PA_COMMAND_GET_SINK_INFO_LIST)
1277 sink_fill_tagstruct(reply, p);
1278 else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
1279 source_fill_tagstruct(reply, p);
1280 else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
1281 client_fill_tagstruct(reply, p);
1282 else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
1283 module_fill_tagstruct(reply, p);
1284 else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
1285 sink_input_fill_tagstruct(reply, p);
1286 else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
1287 source_output_fill_tagstruct(reply, p);
1288 else {
1289 assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
1290 scache_fill_tagstruct(reply, p);
1291 }
1292 }
1293 }
1294
1295 pa_pstream_send_tagstruct(c->pstream, reply);
1296 }
1297
1298 static void command_get_server_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1299 struct connection *c = userdata;
1300 struct pa_tagstruct *reply;
1301 char txt[256];
1302 const char *n;
1303 assert(c && t);
1304
1305 if (!pa_tagstruct_eof(t)) {
1306 protocol_error(c);
1307 return;
1308 }
1309
1310 if (!c->authorized) {
1311 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1312 return;
1313 }
1314
1315 reply = pa_tagstruct_new(NULL, 0);
1316 assert(reply);
1317 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1318 pa_tagstruct_putu32(reply, tag);
1319 pa_tagstruct_puts(reply, PACKAGE_NAME);
1320 pa_tagstruct_puts(reply, PACKAGE_VERSION);
1321 pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
1322 pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
1323 pa_tagstruct_put_sample_spec(reply, &c->protocol->core->default_sample_spec);
1324
1325 n = pa_namereg_get_default_sink_name(c->protocol->core);
1326 pa_tagstruct_puts(reply, n ? n : "");
1327 n = pa_namereg_get_default_source_name(c->protocol->core);
1328 pa_tagstruct_puts(reply, n ? n : "");
1329 pa_pstream_send_tagstruct(c->pstream, reply);
1330 }
1331
1332 static void subscription_cb(struct pa_core *core, enum pa_subscription_event_type e, uint32_t index, void *userdata) {
1333 struct pa_tagstruct *t;
1334 struct connection *c = userdata;
1335 assert(c && core);
1336
1337 t = pa_tagstruct_new(NULL, 0);
1338 assert(t);
1339 pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
1340 pa_tagstruct_putu32(t, (uint32_t) -1);
1341 pa_tagstruct_putu32(t, e);
1342 pa_tagstruct_putu32(t, index);
1343 pa_pstream_send_tagstruct(c->pstream, t);
1344 }
1345
1346 static void command_subscribe(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1347 struct connection *c = userdata;
1348 enum pa_subscription_mask m;
1349 assert(c && t);
1350
1351 if (pa_tagstruct_getu32(t, &m) < 0 ||
1352 !pa_tagstruct_eof(t)) {
1353 protocol_error(c);
1354 return;
1355 }
1356
1357 if (!c->authorized) {
1358 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1359 return;
1360 }
1361
1362 if (c->subscription)
1363 pa_subscription_free(c->subscription);
1364
1365 if (m != 0) {
1366 c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
1367 assert(c->subscription);
1368 } else
1369 c->subscription = NULL;
1370
1371 pa_pstream_send_simple_ack(c->pstream, tag);
1372 }
1373
1374 static void command_set_volume(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1375 struct connection *c = userdata;
1376 uint32_t index, volume;
1377 struct pa_sink *sink = NULL;
1378 struct pa_sink_input *si = NULL;
1379 const char *name = NULL;
1380 assert(c && t);
1381
1382 if (pa_tagstruct_getu32(t, &index) < 0 ||
1383 (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
1384 pa_tagstruct_getu32(t, &volume) ||
1385 !pa_tagstruct_eof(t)) {
1386 protocol_error(c);
1387 return;
1388 }
1389
1390 if (!c->authorized) {
1391 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1392 return;
1393 }
1394
1395 if (command == PA_COMMAND_SET_SINK_VOLUME) {
1396 if (index != (uint32_t) -1)
1397 sink = pa_idxset_get_by_index(c->protocol->core->sinks, index);
1398 else
1399 sink = pa_namereg_get(c->protocol->core, *name ? name : NULL, PA_NAMEREG_SINK, 1);
1400 } else {
1401 assert(command == PA_COMMAND_SET_SINK_INPUT_VOLUME);
1402 si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index);
1403 }
1404
1405 if (!si && !sink) {
1406 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1407 return;
1408 }
1409
1410 if (sink)
1411 pa_sink_set_volume(sink, volume);
1412 else if (si)
1413 pa_sink_input_set_volume(si, volume);
1414
1415 pa_pstream_send_simple_ack(c->pstream, tag);
1416 }
1417
1418 static void command_cork_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1419 struct connection *c = userdata;
1420 uint32_t index;
1421 uint32_t b;
1422 struct playback_stream *s;
1423 assert(c && t);
1424
1425 if (pa_tagstruct_getu32(t, &index) < 0 ||
1426 pa_tagstruct_getu32(t, &b) < 0 ||
1427 !pa_tagstruct_eof(t)) {
1428 protocol_error(c);
1429 return;
1430 }
1431
1432 if (!c->authorized) {
1433 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1434 return;
1435 }
1436
1437 if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
1438 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1439 return;
1440 }
1441
1442 pa_sink_input_cork(s->sink_input, b);
1443 pa_pstream_send_simple_ack(c->pstream, tag);
1444 }
1445
1446 static void command_flush_or_trigger_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1447 struct connection *c = userdata;
1448 uint32_t index;
1449 struct playback_stream *s;
1450 assert(c && t);
1451
1452 if (pa_tagstruct_getu32(t, &index) < 0 ||
1453 !pa_tagstruct_eof(t)) {
1454 protocol_error(c);
1455 return;
1456 }
1457
1458 if (!c->authorized) {
1459 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1460 return;
1461 }
1462
1463 if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
1464 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1465 return;
1466 }
1467
1468 if (command == PA_COMMAND_TRIGGER_PLAYBACK_STREAM)
1469 pa_memblockq_prebuf_disable(s->memblockq);
1470 else {
1471 assert(command == PA_COMMAND_FLUSH_PLAYBACK_STREAM);
1472 pa_memblockq_flush(s->memblockq);
1473 /*pa_log(__FILE__": flush: %u\n", pa_memblockq_get_length(s->memblockq));*/
1474 }
1475
1476 pa_sink_notify(s->sink_input->sink);
1477 pa_pstream_send_simple_ack(c->pstream, tag);
1478 request_bytes(s);
1479 }
1480
1481 static void command_set_default_sink_or_source(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1482 struct connection *c = userdata;
1483 uint32_t index;
1484 const char *s;
1485 assert(c && t);
1486
1487 if (pa_tagstruct_getu32(t, &index) < 0 ||
1488 pa_tagstruct_gets(t, &s) < 0 ||
1489 !pa_tagstruct_eof(t)) {
1490 protocol_error(c);
1491 return;
1492 }
1493
1494 if (!c->authorized) {
1495 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1496 return;
1497 }
1498
1499 pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
1500 pa_pstream_send_simple_ack(c->pstream, tag);
1501 }
1502
1503 static void command_set_stream_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1504 struct connection *c = userdata;
1505 uint32_t index;
1506 const char *name;
1507 assert(c && t);
1508
1509 if (pa_tagstruct_getu32(t, &index) < 0 ||
1510 pa_tagstruct_gets(t, &name) < 0 ||
1511 !pa_tagstruct_eof(t)) {
1512 protocol_error(c);
1513 return;
1514 }
1515
1516 if (!c->authorized) {
1517 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1518 return;
1519 }
1520
1521 if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
1522 struct playback_stream *s;
1523
1524 if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
1525 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1526 return;
1527 }
1528
1529 pa_sink_input_set_name(s->sink_input, name);
1530
1531 } else {
1532 struct record_stream *s;
1533
1534 if (!(s = pa_idxset_get_by_index(c->record_streams, index))) {
1535 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1536 return;
1537 }
1538
1539 pa_source_output_set_name(s->source_output, name);
1540 }
1541
1542 pa_pstream_send_simple_ack(c->pstream, tag);
1543 }
1544
1545 static void command_kill(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1546 struct connection *c = userdata;
1547 uint32_t index;
1548 assert(c && t);
1549
1550 if (pa_tagstruct_getu32(t, &index) < 0 ||
1551 !pa_tagstruct_eof(t)) {
1552 protocol_error(c);
1553 return;
1554 }
1555
1556 if (!c->authorized) {
1557 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1558 return;
1559 }
1560
1561 if (command == PA_COMMAND_KILL_CLIENT) {
1562 struct pa_client *client;
1563
1564 if (!(client = pa_idxset_get_by_index(c->protocol->core->clients, index))) {
1565 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1566 return;
1567 }
1568
1569 pa_client_kill(client);
1570 } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
1571 struct pa_sink_input *s;
1572
1573 if (!(s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index))) {
1574 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1575 return;
1576 }
1577
1578 pa_sink_input_kill(s);
1579 } else {
1580 struct pa_source_output *s;
1581
1582 assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
1583
1584 if (!(s = pa_idxset_get_by_index(c->protocol->core->source_outputs, index))) {
1585 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1586 return;
1587 }
1588
1589 pa_source_output_kill(s);
1590 }
1591
1592 pa_pstream_send_simple_ack(c->pstream, tag);
1593 }
1594
1595 static void command_load_module(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1596 struct connection *c = userdata;
1597 struct pa_module *m;
1598 const char *name, *argument;
1599 struct pa_tagstruct *reply;
1600 assert(c && t);
1601
1602 if (pa_tagstruct_gets(t, &name) < 0 ||
1603 pa_tagstruct_gets(t, &argument) < 0 ||
1604 !pa_tagstruct_eof(t)) {
1605 protocol_error(c);
1606 return;
1607 }
1608
1609 if (!c->authorized) {
1610 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1611 return;
1612 }
1613
1614 if (!(m = pa_module_load(c->protocol->core, name, argument))) {
1615 pa_pstream_send_error(c->pstream, tag, PA_ERROR_INITFAILED);
1616 return;
1617 }
1618
1619 reply = pa_tagstruct_new(NULL, 0);
1620 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1621 pa_tagstruct_putu32(reply, tag);
1622 pa_tagstruct_putu32(reply, m->index);
1623 pa_pstream_send_tagstruct(c->pstream, reply);
1624 }
1625
1626 static void command_unload_module(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1627 struct connection *c = userdata;
1628 uint32_t index;
1629 struct pa_module *m;
1630 assert(c && t);
1631
1632 if (pa_tagstruct_getu32(t, &index) < 0 ||
1633 !pa_tagstruct_eof(t)) {
1634 protocol_error(c);
1635 return;
1636 }
1637
1638 if (!c->authorized) {
1639 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1640 return;
1641 }
1642
1643 if (!(m = pa_idxset_get_by_index(c->protocol->core->modules, index))) {
1644 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1645 return;
1646 }
1647
1648 pa_module_unload_request(m);
1649 pa_pstream_send_simple_ack(c->pstream, tag);
1650 }
1651
1652 static void command_add_autoload(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1653 struct connection *c = userdata;
1654 const char *name, *module, *argument;
1655 uint32_t type;
1656 assert(c && t);
1657
1658 if (pa_tagstruct_gets(t, &name) < 0 ||
1659 pa_tagstruct_getu32(t, &type) < 0 || type > 1 ||
1660 pa_tagstruct_gets(t, &module) < 0 ||
1661 pa_tagstruct_gets(t, &argument) < 0 ||
1662 !pa_tagstruct_eof(t)) {
1663 protocol_error(c);
1664 return;
1665 }
1666
1667 if (!c->authorized) {
1668 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1669 return;
1670 }
1671
1672 if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument) < 0) {
1673 pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
1674 return;
1675 }
1676
1677 pa_pstream_send_simple_ack(c->pstream, tag);
1678 }
1679
1680 static void command_remove_autoload(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1681 struct connection *c = userdata;
1682 const char *name;
1683 uint32_t type;
1684 assert(c && t);
1685
1686 if (pa_tagstruct_gets(t, &name) < 0 ||
1687 pa_tagstruct_getu32(t, &type) < 0 || type > 1 ||
1688 !pa_tagstruct_eof(t)) {
1689 protocol_error(c);
1690 return;
1691 }
1692
1693 if (!c->authorized) {
1694 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1695 return;
1696 }
1697
1698 if (pa_autoload_remove(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE) < 0) {
1699 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1700 return;
1701 }
1702
1703 pa_pstream_send_simple_ack(c->pstream, tag);
1704 }
1705
1706 static void autoload_fill_tagstruct(struct pa_tagstruct *t, struct pa_autoload_entry *e) {
1707 assert(t && e);
1708 pa_tagstruct_puts(t, e->name);
1709 pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1);
1710 pa_tagstruct_puts(t, e->module);
1711 pa_tagstruct_puts(t, e->argument);
1712 }
1713
1714 static void command_get_autoload_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1715 struct connection *c = userdata;
1716 struct pa_autoload_entry *a = NULL;
1717 uint32_t type;
1718 const char *name;
1719 struct pa_tagstruct *reply;
1720 assert(c && t);
1721
1722 if (pa_tagstruct_gets(t, &name) < 0 ||
1723 pa_tagstruct_getu32(t, &type) < 0 || type > 1 ||
1724 !pa_tagstruct_eof(t)) {
1725 protocol_error(c);
1726 return;
1727 }
1728
1729 if (!c->authorized) {
1730 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1731 return;
1732 }
1733
1734 if (!c->protocol->core->autoload_hashmap || !(a = pa_hashmap_get(c->protocol->core->autoload_hashmap, name)) || (a->type == PA_NAMEREG_SINK && type != 0) || (a->type == PA_NAMEREG_SOURCE && type != 1)) {
1735 pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1736 return;
1737 }
1738
1739 reply = pa_tagstruct_new(NULL, 0);
1740 assert(reply);
1741 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1742 pa_tagstruct_putu32(reply, tag);
1743 autoload_fill_tagstruct(reply, a);
1744 pa_pstream_send_tagstruct(c->pstream, reply);
1745 }
1746
1747 static void command_get_autoload_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1748 struct connection *c = userdata;
1749 struct pa_tagstruct *reply;
1750 assert(c && t);
1751
1752 if (!pa_tagstruct_eof(t)) {
1753 protocol_error(c);
1754 return;
1755 }
1756
1757 if (!c->authorized) {
1758 pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1759 return;
1760 }
1761
1762 reply = pa_tagstruct_new(NULL, 0);
1763 pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1764 pa_tagstruct_putu32(reply, tag);
1765
1766 if (c->protocol->core->autoload_hashmap) {
1767 struct pa_autoload_entry *a;
1768 void *state = NULL;
1769
1770 while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state)))
1771 autoload_fill_tagstruct(reply, a);
1772 }
1773
1774 pa_pstream_send_tagstruct(c->pstream, reply);
1775 }
1776
1777 /*** pstream callbacks ***/
1778
1779 static void pstream_packet_callback(struct pa_pstream *p, struct pa_packet *packet, void *userdata) {
1780 struct connection *c = userdata;
1781 assert(p && packet && packet->data && c);
1782
1783 if (pa_pdispatch_run(c->pdispatch, packet, c) < 0) {
1784 pa_log(__FILE__": invalid packet.\n");
1785 connection_free(c);
1786 }
1787 }
1788
1789 static void pstream_memblock_callback(struct pa_pstream *p, uint32_t channel, uint32_t delta, const struct pa_memchunk *chunk, void *userdata) {
1790 struct connection *c = userdata;
1791 struct output_stream *stream;
1792 assert(p && chunk && userdata);
1793
1794 if (!(stream = pa_idxset_get_by_index(c->output_streams, channel))) {
1795 pa_log(__FILE__": client sent block for invalid stream.\n");
1796 connection_free(c);
1797 return;
1798 }
1799
1800 if (stream->type == PLAYBACK_STREAM) {
1801 struct playback_stream *p = (struct playback_stream*) stream;
1802 if (chunk->length >= p->requested_bytes)
1803 p->requested_bytes = 0;
1804 else
1805 p->requested_bytes -= chunk->length;
1806
1807 pa_memblockq_push_align(p->memblockq, chunk, delta);
1808 assert(p->sink_input);
1809 /*pa_log(__FILE__": after_recv: %u\n", pa_memblockq_get_length(p->memblockq));*/
1810
1811 pa_sink_notify(p->sink_input->sink);
1812 /* pa_log(__FILE__": Recieved %u bytes.\n", chunk->length); */
1813
1814 } else {
1815 struct upload_stream *u = (struct upload_stream*) stream;
1816 size_t l;
1817 assert(u->type == UPLOAD_STREAM);
1818
1819 if (!u->memchunk.memblock) {
1820 if (u->length == chunk->length) {
1821 u->memchunk = *chunk;
1822 pa_memblock_ref(u->memchunk.memblock);
1823 u->length = 0;
1824 } else {
1825 u->memchunk.memblock = pa_memblock_new(u->length, c->protocol->core->memblock_stat);
1826 u->memchunk.index = u->memchunk.length = 0;
1827 }
1828 }
1829
1830 assert(u->memchunk.memblock);
1831
1832 l = u->length;
1833 if (l > chunk->length)
1834 l = chunk->length;
1835
1836 if (l > 0) {
1837 memcpy((uint8_t*) u->memchunk.memblock->data + u->memchunk.index + u->memchunk.length,
1838 (uint8_t*) chunk->memblock->data+chunk->index, l);
1839 u->memchunk.length += l;
1840 u->length -= l;
1841 }
1842 }
1843 }
1844
1845 static void pstream_die_callback(struct pa_pstream *p, void *userdata) {
1846 struct connection *c = userdata;
1847 assert(p && c);
1848 connection_free(c);
1849
1850 /* pa_log(__FILE__": connection died.\n");*/
1851 }
1852
1853
1854 static void pstream_drain_callback(struct pa_pstream *p, void *userdata) {
1855 struct connection *c = userdata;
1856 assert(p && c);
1857
1858 send_memblock(c);
1859 }
1860
1861 /*** client callbacks ***/
1862
1863 static void client_kill_cb(struct pa_client *c) {
1864 assert(c && c->userdata);
1865 connection_free(c->userdata);
1866 }
1867
1868 /*** socket server callbacks ***/
1869
1870 static void on_connection(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata) {
1871 struct pa_protocol_native *p = userdata;
1872 struct connection *c;
1873 assert(io && p);
1874
1875 c = pa_xmalloc(sizeof(struct connection));
1876
1877 c->authorized =!! p->public;
1878 c->protocol = p;
1879 assert(p->core);
1880 c->client = pa_client_new(p->core, "NATIVE", "Client");
1881 assert(c->client);
1882 c->client->kill = client_kill_cb;
1883 c->client->userdata = c;
1884 c->client->owner = p->module;
1885
1886 c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->memblock_stat);
1887 assert(c->pstream);
1888
1889 pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
1890 pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
1891 pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
1892 pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
1893
1894 c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
1895 assert(c->pdispatch);
1896
1897 c->record_streams = pa_idxset_new(NULL, NULL);
1898 c->output_streams = pa_idxset_new(NULL, NULL);
1899 assert(c->record_streams && c->output_streams);
1900
1901 c->rrobin_index = PA_IDXSET_INVALID;
1902 c->subscription = NULL;
1903
1904 pa_idxset_put(p->connections, c, NULL);
1905 }
1906
1907 /*** module entry points ***/
1908
1909 static struct pa_protocol_native* protocol_new_internal(struct pa_core *c, struct pa_module *m, struct pa_modargs *ma) {
1910 struct pa_protocol_native *p;
1911 int public = 0;
1912 assert(c && ma);
1913
1914 if (pa_modargs_get_value_boolean(ma, "public", &public) < 0) {
1915 pa_log(__FILE__": public= expects a boolean argument.\n");
1916 return NULL;
1917 }
1918
1919 p = pa_xmalloc(sizeof(struct pa_protocol_native));
1920
1921 if (pa_authkey_load_from_home(pa_modargs_get_value(ma, "cookie", PA_NATIVE_COOKIE_FILE), p->auth_cookie, sizeof(p->auth_cookie)) < 0) {
1922 pa_xfree(p);
1923 return NULL;
1924 }
1925
1926 p->module = m;
1927 p->public = public;
1928 p->server = NULL;
1929 p->core = c;
1930 p->connections = pa_idxset_new(NULL, NULL);
1931 assert(p->connections);
1932
1933 return p;
1934 }
1935
1936 struct pa_protocol_native* pa_protocol_native_new(struct pa_core *core, struct pa_socket_server *server, struct pa_module *m, struct pa_modargs *ma) {
1937 struct pa_protocol_native *p;
1938
1939 if (!(p = protocol_new_internal(core, m, ma)))
1940 return NULL;
1941
1942 p->server = server;
1943 pa_socket_server_set_callback(p->server, on_connection, p);
1944
1945 return p;
1946 }
1947
1948 void pa_protocol_native_free(struct pa_protocol_native *p) {
1949 struct connection *c;
1950 assert(p);
1951
1952 while ((c = pa_idxset_first(p->connections, NULL)))
1953 connection_free(c);
1954 pa_idxset_free(p->connections, NULL, NULL);
1955
1956 if (p->server)
1957 pa_socket_server_unref(p->server);
1958
1959 pa_xfree(p);
1960 }
1961
1962 struct pa_protocol_native* pa_protocol_native_new_iochannel(struct pa_core*core, struct pa_iochannel *io, struct pa_module *m, struct pa_modargs *ma) {
1963 struct pa_protocol_native *p;
1964
1965 if (!(p = protocol_new_internal(core, m, ma)))
1966 return NULL;
1967
1968 on_connection(NULL, io, p);
1969
1970 return p;
1971 }