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 || !name ||
 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
 558     if (!c->authorized) {
 559         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 560         return;
 561     }
 562
 563     if (sink_index != (uint32_t) -1)
 564         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
 565     else
 566         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
 567
 568     if (!sink) {
 569         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
 570         return;
 571     }
 572
 573     if (!(s = playback_stream_new(c, sink, &ss, name, maxlength, tlength, prebuf, minreq, volume))) {
 574         pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
 575         return;
 576     }
 577
 578     reply = pa_tagstruct_new(NULL, 0);
 579     assert(reply);
 580     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
 581     pa_tagstruct_putu32(reply, tag);
 582     pa_tagstruct_putu32(reply, s->index);
 583     assert(s->sink_input);
 584     pa_tagstruct_putu32(reply, s->sink_input->index);
 585     pa_tagstruct_putu32(reply, s->requested_bytes = pa_memblockq_missing(s->memblockq));
 586     pa_pstream_send_tagstruct(c->pstream, reply);
 587     request_bytes(s);
 588 }
 589
 590 static void command_delete_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 591     struct connection *c = userdata;
 592     uint32_t channel;
 593     assert(c && t);
 594
 595     if (pa_tagstruct_getu32(t, &channel) < 0 ||
 596         !pa_tagstruct_eof(t)) {
 597         protocol_error(c);
 598         return;
 599     }
 600
 601     if (!c->authorized) {
 602         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 603         return;
 604     }
 605
 606     if (command == PA_COMMAND_DELETE_PLAYBACK_STREAM) {
 607         struct playback_stream *s;
 608         if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != PLAYBACK_STREAM)) {
 609             pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
 610             return;
 611         }
 612
 613         playback_stream_free(s);
 614     } else if (command == PA_COMMAND_DELETE_RECORD_STREAM) {
 615         struct record_stream *s;
 616         if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
 617             pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
 618             return;
 619         }
 620
 621         record_stream_free(s);
 622     } else {
 623         struct upload_stream *s;
 624         assert(command == PA_COMMAND_DELETE_UPLOAD_STREAM);
 625         if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) {
 626             pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
 627             return;
 628         }
 629
 630         upload_stream_free(s);
 631     }
 632
 633     pa_pstream_send_simple_ack(c->pstream, tag);
 634 }
 635
 636 static void command_create_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 637     struct connection *c = userdata;
 638     struct record_stream *s;
 639     size_t maxlength, fragment_size;
 640     uint32_t source_index;
 641     const char *name, *source_name;
 642     struct pa_sample_spec ss;
 643     struct pa_tagstruct *reply;
 644     struct pa_source *source;
 645     assert(c && t && c->protocol && c->protocol->core);
 646
 647     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
 648         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
 649         pa_tagstruct_getu32(t, &source_index) < 0 ||
 650         pa_tagstruct_gets(t, &source_name) < 0 ||
 651         pa_tagstruct_getu32(t, &maxlength) < 0 ||
 652         pa_tagstruct_getu32(t, &fragment_size) < 0 ||
 653         !pa_tagstruct_eof(t)) {
 654         protocol_error(c);
 655         return;
 656     }
 657
 658     if (!c->authorized) {
 659         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 660         return;
 661     }
 662
 663     if (source_index != (uint32_t) -1)
 664         source = pa_idxset_get_by_index(c->protocol->core->sources, source_index);
 665     else
 666         source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1);
 667
 668     if (!source) {
 669         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
 670         return;
 671     }
 672
 673     if (!(s = record_stream_new(c, source, &ss, name, maxlength, fragment_size))) {
 674         pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
 675         return;
 676     }
 677
 678     reply = pa_tagstruct_new(NULL, 0);
 679     assert(reply);
 680     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
 681     pa_tagstruct_putu32(reply, tag);
 682     pa_tagstruct_putu32(reply, s->index);
 683     assert(s->source_output);
 684     pa_tagstruct_putu32(reply, s->source_output->index);
 685     pa_pstream_send_tagstruct(c->pstream, reply);
 686 }
 687
 688 static void command_exit(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 689     struct connection *c = userdata;
 690     assert(c && t);
 691
 692     if (!pa_tagstruct_eof(t)) {
 693         protocol_error(c);
 694         return;
 695     }
 696
 697     if (!c->authorized) {
 698         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 699         return;
 700     }
 701
 702     assert(c->protocol && c->protocol->core && c->protocol->core->mainloop);
 703     c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0);
 704     pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
 705     return;
 706 }
 707
 708 static void command_auth(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 709     struct connection *c = userdata;
 710     const void*cookie;
 711     assert(c && t);
 712
 713     if (pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
 714         !pa_tagstruct_eof(t)) {
 715         protocol_error(c);
 716         return;
 717     }
 718
 719     if (!c->authorized) {
 720         if (memcmp(c->protocol->auth_cookie, cookie, PA_NATIVE_COOKIE_LENGTH) != 0) {
 721             pa_log(__FILE__": Denied access to client with invalid authorization key.\n");
 722             pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 723             return;
 724         }
 725
 726         c->authorized = 1;
 727     }
 728
 729     pa_pstream_send_simple_ack(c->pstream, tag);
 730     return;
 731 }
 732
 733 static void command_set_client_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 734     struct connection *c = userdata;
 735     const char *name;
 736     assert(c && t);
 737
 738     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
 739         !pa_tagstruct_eof(t)) {
 740         protocol_error(c);
 741         return;
 742     }
 743
 744     pa_client_set_name(c->client, name);
 745     pa_pstream_send_simple_ack(c->pstream, tag);
 746     return;
 747 }
 748
 749 static void command_lookup(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 750     struct connection *c = userdata;
 751     const char *name;
 752     uint32_t index = PA_IDXSET_INVALID;
 753     assert(c && t);
 754
 755     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
 756         !pa_tagstruct_eof(t)) {
 757         protocol_error(c);
 758         return;
 759     }
 760
 761     if (!c->authorized) {
 762         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 763         return;
 764     }
 765
 766     if (command == PA_COMMAND_LOOKUP_SINK) {
 767         struct pa_sink *sink;
 768         if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1)))
 769             index = sink->index;
 770     } else {
 771         struct pa_source *source;
 772         assert(command == PA_COMMAND_LOOKUP_SOURCE);
 773         if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1)))
 774             index = source->index;
 775     }
 776
 777     if (index == PA_IDXSET_INVALID)
 778         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
 779     else {
 780         struct pa_tagstruct *reply;
 781         reply = pa_tagstruct_new(NULL, 0);
 782         assert(reply);
 783         pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
 784         pa_tagstruct_putu32(reply, tag);
 785         pa_tagstruct_putu32(reply, index);
 786         pa_pstream_send_tagstruct(c->pstream, reply);
 787     }
 788 }
 789
 790 static void command_drain_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 791     struct connection *c = userdata;
 792     uint32_t index;
 793     struct playback_stream *s;
 794     assert(c && t);
 795
 796     if (pa_tagstruct_getu32(t, &index) < 0 ||
 797         !pa_tagstruct_eof(t)) {
 798         protocol_error(c);
 799         return;
 800     }
 801
 802     if (!c->authorized) {
 803         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 804         return;
 805     }
 806
 807     if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
 808         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
 809         return;
 810     }
 811
 812     s->drain_request = 0;
 813
 814     pa_memblockq_prebuf_disable(s->memblockq);
 815
 816     if (!pa_memblockq_is_readable(s->memblockq)) {
 817         pa_pstream_send_simple_ack(c->pstream, tag);
 818     } else {
 819         s->drain_request = 1;
 820         s->drain_tag = tag;
 821
 822         pa_sink_notify(s->sink_input->sink);
 823     }
 824 }
 825
 826 static void command_stat(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 827     struct connection *c = userdata;
 828     struct pa_tagstruct *reply;
 829     assert(c && t);
 830
 831     if (!pa_tagstruct_eof(t)) {
 832         protocol_error(c);
 833         return;
 834     }
 835
 836     if (!c->authorized) {
 837         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 838         return;
 839     }
 840
 841     reply = pa_tagstruct_new(NULL, 0);
 842     assert(reply);
 843     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
 844     pa_tagstruct_putu32(reply, tag);
 845     pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total);
 846     pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total_size);
 847     pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated);
 848     pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated_size);
 849     pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
 850     pa_pstream_send_tagstruct(c->pstream, reply);
 851 }
 852
 853 static void command_get_playback_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 854     struct connection *c = userdata;
 855     struct pa_tagstruct *reply;
 856     struct playback_stream *s;
 857     struct timeval tv, now;
 858     uint32_t index;
 859     assert(c && t);
 860
 861     if (pa_tagstruct_getu32(t, &index) < 0 ||
 862         pa_tagstruct_get_timeval(t, &tv) < 0 ||
 863         !pa_tagstruct_eof(t)) {
 864         protocol_error(c);
 865         return;
 866     }
 867
 868     if (!c->authorized) {
 869         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 870         return;
 871     }
 872
 873     if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
 874         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
 875         return;
 876     }
 877
 878     reply = pa_tagstruct_new(NULL, 0);
 879     assert(reply);
 880     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
 881     pa_tagstruct_putu32(reply, tag);
 882     pa_tagstruct_put_usec(reply, pa_sink_input_get_latency(s->sink_input));
 883     pa_tagstruct_put_usec(reply, pa_sink_get_latency(s->sink_input->sink));
 884     pa_tagstruct_put_usec(reply, 0);
 885     pa_tagstruct_put_boolean(reply, pa_memblockq_is_readable(s->memblockq));
 886     pa_tagstruct_putu32(reply, pa_memblockq_get_length(s->memblockq));
 887     pa_tagstruct_put_timeval(reply, &tv);
 888     gettimeofday(&now, NULL);
 889     pa_tagstruct_put_timeval(reply, &now);
 890     pa_pstream_send_tagstruct(c->pstream, reply);
 891 }
 892
 893 static void command_get_record_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 894     struct connection *c = userdata;
 895     struct pa_tagstruct *reply;
 896     struct record_stream *s;
 897     struct timeval tv, now;
 898     uint32_t index;
 899     assert(c && t);
 900
 901     if (pa_tagstruct_getu32(t, &index) < 0 ||
 902         pa_tagstruct_get_timeval(t, &tv) < 0 ||
 903         !pa_tagstruct_eof(t)) {
 904         protocol_error(c);
 905         return;
 906     }
 907
 908     if (!c->authorized) {
 909         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 910         return;
 911     }
 912
 913     if (!(s = pa_idxset_get_by_index(c->record_streams, index))) {
 914         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
 915         return;
 916     }
 917
 918     reply = pa_tagstruct_new(NULL, 0);
 919     assert(reply);
 920     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
 921     pa_tagstruct_putu32(reply, tag);
 922     pa_tagstruct_put_usec(reply, pa_source_output_get_latency(s->source_output));
 923     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
 924     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
 925     pa_tagstruct_put_boolean(reply, 0);
 926     pa_tagstruct_putu32(reply, pa_memblockq_get_length(s->memblockq));
 927     pa_tagstruct_put_timeval(reply, &tv);
 928     gettimeofday(&now, NULL);
 929     pa_tagstruct_put_timeval(reply, &now);
 930     pa_pstream_send_tagstruct(c->pstream, reply);
 931 }
 932
 933
 934 static void command_create_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 935     struct connection *c = userdata;
 936     struct upload_stream *s;
 937     size_t length;
 938     const char *name;
 939     struct pa_sample_spec ss;
 940     struct pa_tagstruct *reply;
 941     assert(c && t && c->protocol && c->protocol->core);
 942
 943     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
 944         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
 945         pa_tagstruct_getu32(t, &length) < 0 ||
 946         !pa_tagstruct_eof(t)) {
 947         protocol_error(c);
 948         return;
 949     }
 950
 951     if (!c->authorized) {
 952         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 953         return;
 954     }
 955
 956     if ((length % pa_frame_size(&ss)) != 0 || length <= 0 || !*name) {
 957         pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
 958         return;
 959     }
 960
 961     if (!(s = upload_stream_new(c, &ss, name, length))) {
 962         pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID);
 963         return;
 964     }
 965
 966     reply = pa_tagstruct_new(NULL, 0);
 967     assert(reply);
 968     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
 969     pa_tagstruct_putu32(reply, tag);
 970     pa_tagstruct_putu32(reply, s->index);
 971     pa_tagstruct_putu32(reply, length);
 972     pa_pstream_send_tagstruct(c->pstream, reply);
 973 }
 974
 975 static void command_finish_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 976     struct connection *c = userdata;
 977     uint32_t channel;
 978     struct upload_stream *s;
 979     uint32_t index;
 980     assert(c && t);
 981
 982     if (pa_tagstruct_getu32(t, &channel) < 0 ||
 983         !pa_tagstruct_eof(t)) {
 984         protocol_error(c);
 985         return;
 986     }
 987
 988     if (!c->authorized) {
 989         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
 990         return;
 991     }
 992
 993     if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) {
 994         pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
 995         return;
 996     }
 997
 998     pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->memchunk, &index);
 999     pa_pstream_send_simple_ack(c->pstream, tag);
1000     upload_stream_free(s);
1001 }
1002
1003 static void command_play_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1004     struct connection *c = userdata;
1005     uint32_t sink_index, volume;
1006     struct pa_sink *sink;
1007     const char *name, *sink_name;
1008     assert(c && t);
1009
1010     if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
1011         pa_tagstruct_gets(t, &sink_name) < 0 ||
1012         pa_tagstruct_getu32(t, &volume) < 0 ||
1013         pa_tagstruct_gets(t, &name) < 0 || !name ||
1014         !pa_tagstruct_eof(t)) {
1015         protocol_error(c);
1016         return;
1017     }
1018
1019     if (!c->authorized) {
1020         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1021         return;
1022     }
1023
1024     if (sink_index != (uint32_t) -1)
1025         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
1026     else
1027         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
1028
1029     if (!sink) {
1030         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1031         return;
1032     }
1033
1034     if (pa_scache_play_item(c->protocol->core, name, sink, volume) < 0) {
1035         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1036         return;
1037     }
1038
1039     pa_pstream_send_simple_ack(c->pstream, tag);
1040 }
1041
1042 static void command_remove_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1043     struct connection *c = userdata;
1044     const char *name;
1045     assert(c && t);
1046
1047     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
1048         !pa_tagstruct_eof(t)) {
1049         protocol_error(c);
1050         return;
1051     }
1052
1053     if (!c->authorized) {
1054         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1055         return;
1056     }
1057
1058     if (pa_scache_remove_item(c->protocol->core, name) < 0) {
1059         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1060         return;
1061     }
1062
1063     pa_pstream_send_simple_ack(c->pstream, tag);
1064 }
1065
1066 static void sink_fill_tagstruct(struct pa_tagstruct *t, struct pa_sink *sink) {
1067     assert(t && sink);
1068     pa_tagstruct_putu32(t, sink->index);
1069     pa_tagstruct_puts(t, sink->name);
1070     pa_tagstruct_puts(t, sink->description);
1071     pa_tagstruct_put_sample_spec(t, &sink->sample_spec);
1072     pa_tagstruct_putu32(t, sink->owner ? sink->owner->index : (uint32_t) -1);
1073     pa_tagstruct_putu32(t, sink->volume);
1074     pa_tagstruct_putu32(t, sink->monitor_source->index);
1075     pa_tagstruct_puts(t, sink->monitor_source->name);
1076     pa_tagstruct_put_usec(t, pa_sink_get_latency(sink));
1077 }
1078
1079 static void source_fill_tagstruct(struct pa_tagstruct *t, struct pa_source *source) {
1080     assert(t && source);
1081     pa_tagstruct_putu32(t, source->index);
1082     pa_tagstruct_puts(t, source->name);
1083     pa_tagstruct_puts(t, source->description);
1084     pa_tagstruct_put_sample_spec(t, &source->sample_spec);
1085     pa_tagstruct_putu32(t, source->owner ? source->owner->index : (uint32_t) -1);
1086     pa_tagstruct_putu32(t, source->monitor_of ? source->monitor_of->index : (uint32_t) -1);
1087     pa_tagstruct_puts(t, source->monitor_of ? source->monitor_of->name : NULL);
1088     pa_tagstruct_put_usec(t, pa_source_get_latency(source));
1089 }
1090
1091 static void client_fill_tagstruct(struct pa_tagstruct *t, struct pa_client *client) {
1092     assert(t && client);
1093     pa_tagstruct_putu32(t, client->index);
1094     pa_tagstruct_puts(t, client->name);
1095     pa_tagstruct_puts(t, client->protocol_name);
1096     pa_tagstruct_putu32(t, client->owner ? client->owner->index : (uint32_t) -1);
1097 }
1098
1099 static void module_fill_tagstruct(struct pa_tagstruct *t, struct pa_module *module) {
1100     assert(t && module);
1101     pa_tagstruct_putu32(t, module->index);
1102     pa_tagstruct_puts(t, module->name);
1103     pa_tagstruct_puts(t, module->argument);
1104     pa_tagstruct_putu32(t, module->n_used);
1105     pa_tagstruct_put_boolean(t, module->auto_unload);
1106 }
1107
1108 static void sink_input_fill_tagstruct(struct pa_tagstruct *t, struct pa_sink_input *s) {
1109     assert(t && s);
1110     pa_tagstruct_putu32(t, s->index);
1111     pa_tagstruct_puts(t, s->name);
1112     pa_tagstruct_putu32(t, s->owner ? s->owner->index : (uint32_t) -1);
1113     pa_tagstruct_putu32(t, s->client ? s->client->index : (uint32_t) -1);
1114     pa_tagstruct_putu32(t, s->sink->index);
1115     pa_tagstruct_put_sample_spec(t, &s->sample_spec);
1116     pa_tagstruct_putu32(t, s->volume);
1117     pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s));
1118     pa_tagstruct_put_usec(t, pa_sink_get_latency(s->sink));
1119 }
1120
1121 static void source_output_fill_tagstruct(struct pa_tagstruct *t, struct pa_source_output *s) {
1122     assert(t && s);
1123     pa_tagstruct_putu32(t, s->index);
1124     pa_tagstruct_puts(t, s->name);
1125     pa_tagstruct_putu32(t, s->owner ? s->owner->index : (uint32_t) -1);
1126     pa_tagstruct_putu32(t, s->client ? s->client->index : (uint32_t) -1);
1127     pa_tagstruct_putu32(t, s->source->index);
1128     pa_tagstruct_put_sample_spec(t, &s->sample_spec);
1129     pa_tagstruct_put_usec(t, pa_source_output_get_latency(s));
1130     pa_tagstruct_put_usec(t, pa_source_get_latency(s->source));
1131 }
1132
1133 static void scache_fill_tagstruct(struct pa_tagstruct *t, struct pa_scache_entry *e) {
1134     assert(t && e);
1135     pa_tagstruct_putu32(t, e->index);
1136     pa_tagstruct_puts(t, e->name);
1137     pa_tagstruct_putu32(t, e->volume);
1138     pa_tagstruct_put_usec(t, pa_bytes_to_usec(e->memchunk.length, &e->sample_spec));
1139     pa_tagstruct_put_sample_spec(t, &e->sample_spec);
1140     pa_tagstruct_putu32(t, e->memchunk.length);
1141     pa_tagstruct_put_boolean(t, e->lazy);
1142     pa_tagstruct_puts(t, e->filename);
1143 }
1144
1145 static void command_get_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1146     struct connection *c = userdata;
1147     uint32_t index;
1148     struct pa_sink *sink = NULL;
1149     struct pa_source *source = NULL;
1150     struct pa_client *client = NULL;
1151     struct pa_module *module = NULL;
1152     struct pa_sink_input *si = NULL;
1153     struct pa_source_output *so = NULL;
1154     struct pa_scache_entry *sce = NULL;
1155     const char *name;
1156     struct pa_tagstruct *reply;
1157     assert(c && t);
1158
1159
1160     if (pa_tagstruct_getu32(t, &index) < 0 ||
1161         (command != PA_COMMAND_GET_CLIENT_INFO &&
1162          command != PA_COMMAND_GET_MODULE_INFO &&
1163          command != PA_COMMAND_GET_SINK_INPUT_INFO &&
1164          command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
1165          pa_tagstruct_gets(t, &name) < 0) ||
1166         !pa_tagstruct_eof(t)) {
1167         protocol_error(c);
1168         return;
1169     }
1170
1171     if (!c->authorized) {
1172         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1173         return;
1174     }
1175
1176     if (command == PA_COMMAND_GET_SINK_INFO) {
1177         if (index != (uint32_t) -1)
1178             sink = pa_idxset_get_by_index(c->protocol->core->sinks, index);
1179         else
1180             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
1181     } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
1182         if (index != (uint32_t) -1)
1183             source = pa_idxset_get_by_index(c->protocol->core->sources, index);
1184         else
1185             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
1186     } else if (command == PA_COMMAND_GET_CLIENT_INFO)
1187         client = pa_idxset_get_by_index(c->protocol->core->clients, index);
1188     else if (command == PA_COMMAND_GET_MODULE_INFO)
1189         module = pa_idxset_get_by_index(c->protocol->core->modules, index);
1190     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
1191         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index);
1192     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
1193         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, index);
1194     else {
1195         assert(command == PA_COMMAND_GET_SAMPLE_INFO);
1196         if (index != (uint32_t) -1)
1197             sce = pa_idxset_get_by_index(c->protocol->core->scache, index);
1198         else
1199             sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0);
1200     }
1201
1202     if (!sink && !source && !client && !module && !si && !so && !sce) {
1203         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1204         return;
1205     }
1206
1207     reply = pa_tagstruct_new(NULL, 0);
1208     assert(reply);
1209     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1210     pa_tagstruct_putu32(reply, tag);
1211     if (sink)
1212         sink_fill_tagstruct(reply, sink);
1213     else if (source)
1214         source_fill_tagstruct(reply, source);
1215     else if (client)
1216         client_fill_tagstruct(reply, client);
1217     else if (module)
1218         module_fill_tagstruct(reply, module);
1219     else if (si)
1220         sink_input_fill_tagstruct(reply, si);
1221     else if (so)
1222         source_output_fill_tagstruct(reply, so);
1223     else
1224         scache_fill_tagstruct(reply, sce);
1225     pa_pstream_send_tagstruct(c->pstream, reply);
1226 }
1227
1228 static void command_get_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1229     struct connection *c = userdata;
1230     struct pa_idxset *i;
1231     uint32_t index;
1232     void *p;
1233     struct pa_tagstruct *reply;
1234     assert(c && t);
1235
1236     if (!pa_tagstruct_eof(t)) {
1237         protocol_error(c);
1238         return;
1239     }
1240
1241     if (!c->authorized) {
1242         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1243         return;
1244     }
1245
1246     reply = pa_tagstruct_new(NULL, 0);
1247     assert(reply);
1248     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1249     pa_tagstruct_putu32(reply, tag);
1250
1251     if (command == PA_COMMAND_GET_SINK_INFO_LIST)
1252         i = c->protocol->core->sinks;
1253     else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
1254         i = c->protocol->core->sources;
1255     else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
1256         i = c->protocol->core->clients;
1257     else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
1258         i = c->protocol->core->modules;
1259     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
1260         i = c->protocol->core->sink_inputs;
1261     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
1262         i = c->protocol->core->source_outputs;
1263     else {
1264         assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
1265         i = c->protocol->core->scache;
1266     }
1267
1268     if (i) {
1269         for (p = pa_idxset_first(i, &index); p; p = pa_idxset_next(i, &index)) {
1270             if (command == PA_COMMAND_GET_SINK_INFO_LIST)
1271                 sink_fill_tagstruct(reply, p);
1272             else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
1273                 source_fill_tagstruct(reply, p);
1274             else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
1275                 client_fill_tagstruct(reply, p);
1276             else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
1277                 module_fill_tagstruct(reply, p);
1278             else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
1279                 sink_input_fill_tagstruct(reply, p);
1280             else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
1281                 source_output_fill_tagstruct(reply, p);
1282             else {
1283                 assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
1284                 scache_fill_tagstruct(reply, p);
1285             }
1286         }
1287     }
1288
1289     pa_pstream_send_tagstruct(c->pstream, reply);
1290 }
1291
1292 static void command_get_server_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1293     struct connection *c = userdata;
1294     struct pa_tagstruct *reply;
1295     char txt[256];
1296     const char *n;
1297     assert(c && t);
1298
1299     if (!pa_tagstruct_eof(t)) {
1300         protocol_error(c);
1301         return;
1302     }
1303
1304     if (!c->authorized) {
1305         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1306         return;
1307     }
1308
1309     reply = pa_tagstruct_new(NULL, 0);
1310     assert(reply);
1311     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1312     pa_tagstruct_putu32(reply, tag);
1313     pa_tagstruct_puts(reply, PACKAGE_NAME);
1314     pa_tagstruct_puts(reply, PACKAGE_VERSION);
1315     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
1316     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
1317     pa_tagstruct_put_sample_spec(reply, &c->protocol->core->default_sample_spec);
1318
1319     n = pa_namereg_get_default_sink_name(c->protocol->core);
1320     pa_tagstruct_puts(reply, n);
1321     n = pa_namereg_get_default_source_name(c->protocol->core);
1322     pa_tagstruct_puts(reply, n);
1323     pa_pstream_send_tagstruct(c->pstream, reply);
1324 }
1325
1326 static void subscription_cb(struct pa_core *core, enum pa_subscription_event_type e, uint32_t index, void *userdata) {
1327     struct pa_tagstruct *t;
1328     struct connection *c = userdata;
1329     assert(c && core);
1330
1331     t = pa_tagstruct_new(NULL, 0);
1332     assert(t);
1333     pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
1334     pa_tagstruct_putu32(t, (uint32_t) -1);
1335     pa_tagstruct_putu32(t, e);
1336     pa_tagstruct_putu32(t, index);
1337     pa_pstream_send_tagstruct(c->pstream, t);
1338 }
1339
1340 static void command_subscribe(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1341     struct connection *c = userdata;
1342     enum pa_subscription_mask m;
1343     assert(c && t);
1344
1345     if (pa_tagstruct_getu32(t, &m) < 0 ||
1346         !pa_tagstruct_eof(t)) {
1347         protocol_error(c);
1348         return;
1349     }
1350
1351     if (!c->authorized) {
1352         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1353         return;
1354     }
1355
1356     if (c->subscription)
1357         pa_subscription_free(c->subscription);
1358
1359     if (m != 0) {
1360         c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
1361         assert(c->subscription);
1362     } else
1363         c->subscription = NULL;
1364
1365     pa_pstream_send_simple_ack(c->pstream, tag);
1366 }
1367
1368 static void command_set_volume(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1369     struct connection *c = userdata;
1370     uint32_t index, volume;
1371     struct pa_sink *sink = NULL;
1372     struct pa_sink_input *si = NULL;
1373     const char *name = NULL;
1374     assert(c && t);
1375
1376     if (pa_tagstruct_getu32(t, &index) < 0 ||
1377         (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
1378         pa_tagstruct_getu32(t, &volume) ||
1379         !pa_tagstruct_eof(t)) {
1380         protocol_error(c);
1381         return;
1382     }
1383
1384     if (!c->authorized) {
1385         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1386         return;
1387     }
1388
1389     if (command == PA_COMMAND_SET_SINK_VOLUME) {
1390         if (index != (uint32_t) -1)
1391             sink = pa_idxset_get_by_index(c->protocol->core->sinks, index);
1392         else
1393             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
1394     }  else {
1395         assert(command == PA_COMMAND_SET_SINK_INPUT_VOLUME);
1396         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index);
1397     }
1398
1399     if (!si && !sink) {
1400         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1401         return;
1402     }
1403
1404     if (sink)
1405         pa_sink_set_volume(sink, volume);
1406     else if (si)
1407         pa_sink_input_set_volume(si, volume);
1408
1409     pa_pstream_send_simple_ack(c->pstream, tag);
1410 }
1411
1412 static void command_cork_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1413     struct connection *c = userdata;
1414     uint32_t index;
1415     uint32_t b;
1416     struct playback_stream *s;
1417     assert(c && t);
1418
1419     if (pa_tagstruct_getu32(t, &index) < 0 ||
1420         pa_tagstruct_getu32(t, &b) < 0 ||
1421         !pa_tagstruct_eof(t)) {
1422         protocol_error(c);
1423         return;
1424     }
1425
1426     if (!c->authorized) {
1427         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1428         return;
1429     }
1430
1431     if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
1432         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1433         return;
1434     }
1435
1436     pa_sink_input_cork(s->sink_input, b);
1437     pa_pstream_send_simple_ack(c->pstream, tag);
1438 }
1439
1440 static void command_flush_or_trigger_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1441     struct connection *c = userdata;
1442     uint32_t index;
1443     struct playback_stream *s;
1444     assert(c && t);
1445
1446     if (pa_tagstruct_getu32(t, &index) < 0 ||
1447         !pa_tagstruct_eof(t)) {
1448         protocol_error(c);
1449         return;
1450     }
1451
1452     if (!c->authorized) {
1453         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1454         return;
1455     }
1456
1457     if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
1458         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1459         return;
1460     }
1461
1462     if (command == PA_COMMAND_TRIGGER_PLAYBACK_STREAM)
1463         pa_memblockq_prebuf_disable(s->memblockq);
1464     else {
1465         assert(command == PA_COMMAND_FLUSH_PLAYBACK_STREAM);
1466         pa_memblockq_flush(s->memblockq);
1467         /*pa_log(__FILE__": flush: %u\n", pa_memblockq_get_length(s->memblockq));*/
1468     }
1469
1470     pa_sink_notify(s->sink_input->sink);
1471     pa_pstream_send_simple_ack(c->pstream, tag);
1472     request_bytes(s);
1473 }
1474
1475 static void command_set_default_sink_or_source(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1476     struct connection *c = userdata;
1477     uint32_t index;
1478     const char *s;
1479     assert(c && t);
1480
1481     if (pa_tagstruct_getu32(t, &index) < 0 ||
1482         pa_tagstruct_gets(t, &s) < 0 || !s ||
1483         !pa_tagstruct_eof(t)) {
1484         protocol_error(c);
1485         return;
1486     }
1487
1488     if (!c->authorized) {
1489         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1490         return;
1491     }
1492
1493     pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
1494     pa_pstream_send_simple_ack(c->pstream, tag);
1495 }
1496
1497 static void command_set_stream_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1498     struct connection *c = userdata;
1499     uint32_t index;
1500     const char *name;
1501     assert(c && t);
1502
1503     if (pa_tagstruct_getu32(t, &index) < 0 ||
1504         pa_tagstruct_gets(t, &name) < 0 || !name ||
1505         !pa_tagstruct_eof(t)) {
1506         protocol_error(c);
1507         return;
1508     }
1509
1510     if (!c->authorized) {
1511         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1512         return;
1513     }
1514
1515     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
1516         struct playback_stream *s;
1517
1518         if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) {
1519             pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1520             return;
1521         }
1522
1523         pa_sink_input_set_name(s->sink_input, name);
1524
1525     } else {
1526         struct record_stream *s;
1527
1528         if (!(s = pa_idxset_get_by_index(c->record_streams, index))) {
1529             pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1530             return;
1531         }
1532
1533         pa_source_output_set_name(s->source_output, name);
1534     }
1535
1536     pa_pstream_send_simple_ack(c->pstream, tag);
1537 }
1538
1539 static void command_kill(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1540     struct connection *c = userdata;
1541     uint32_t index;
1542     assert(c && t);
1543
1544     if (pa_tagstruct_getu32(t, &index) < 0 ||
1545         !pa_tagstruct_eof(t)) {
1546         protocol_error(c);
1547         return;
1548     }
1549
1550     if (!c->authorized) {
1551         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1552         return;
1553     }
1554
1555     if (command == PA_COMMAND_KILL_CLIENT) {
1556         struct pa_client *client;
1557
1558         if (!(client = pa_idxset_get_by_index(c->protocol->core->clients, index))) {
1559             pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1560             return;
1561         }
1562
1563         pa_client_kill(client);
1564     } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
1565         struct pa_sink_input *s;
1566
1567         if (!(s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index))) {
1568             pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1569             return;
1570         }
1571
1572         pa_sink_input_kill(s);
1573     } else {
1574         struct pa_source_output *s;
1575
1576         assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
1577
1578         if (!(s = pa_idxset_get_by_index(c->protocol->core->source_outputs, index))) {
1579             pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1580             return;
1581         }
1582
1583         pa_source_output_kill(s);
1584     }
1585
1586     pa_pstream_send_simple_ack(c->pstream, tag);
1587 }
1588
1589 static void command_load_module(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1590     struct connection *c = userdata;
1591     struct pa_module *m;
1592     const char *name, *argument;
1593     struct pa_tagstruct *reply;
1594     assert(c && t);
1595
1596     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
1597         pa_tagstruct_gets(t, &argument) < 0 ||
1598         !pa_tagstruct_eof(t)) {
1599         protocol_error(c);
1600         return;
1601     }
1602
1603     if (!c->authorized) {
1604         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1605         return;
1606     }
1607
1608     if (!(m = pa_module_load(c->protocol->core, name, argument))) {
1609         pa_pstream_send_error(c->pstream, tag, PA_ERROR_INITFAILED);
1610         return;
1611     }
1612
1613     reply = pa_tagstruct_new(NULL, 0);
1614     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1615     pa_tagstruct_putu32(reply, tag);
1616     pa_tagstruct_putu32(reply, m->index);
1617     pa_pstream_send_tagstruct(c->pstream, reply);
1618 }
1619
1620 static void command_unload_module(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1621     struct connection *c = userdata;
1622     uint32_t index;
1623     struct pa_module *m;
1624     assert(c && t);
1625
1626     if (pa_tagstruct_getu32(t, &index) < 0 ||
1627         !pa_tagstruct_eof(t)) {
1628         protocol_error(c);
1629         return;
1630     }
1631
1632     if (!c->authorized) {
1633         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1634         return;
1635     }
1636
1637     if (!(m = pa_idxset_get_by_index(c->protocol->core->modules, index))) {
1638         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1639         return;
1640     }
1641
1642     pa_module_unload_request(m);
1643     pa_pstream_send_simple_ack(c->pstream, tag);
1644 }
1645
1646 static void command_add_autoload(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1647     struct connection *c = userdata;
1648     const char *name, *module, *argument;
1649     uint32_t type;
1650     assert(c && t);
1651
1652     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
1653         pa_tagstruct_getu32(t, &type) < 0 || type > 1 ||
1654         pa_tagstruct_gets(t, &module) < 0 || !module ||
1655         pa_tagstruct_gets(t, &argument) < 0 ||
1656         !pa_tagstruct_eof(t)) {
1657         protocol_error(c);
1658         return;
1659     }
1660
1661     if (!c->authorized) {
1662         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1663         return;
1664     }
1665
1666     if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument) < 0) {
1667         pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST);
1668         return;
1669     }
1670
1671     pa_pstream_send_simple_ack(c->pstream, tag);
1672 }
1673
1674 static void command_remove_autoload(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1675     struct connection *c = userdata;
1676     const char *name;
1677     uint32_t type;
1678     assert(c && t);
1679
1680     if (pa_tagstruct_gets(t, &name) < 0 || !name ||
1681         pa_tagstruct_getu32(t, &type) < 0 || type > 1 ||
1682         !pa_tagstruct_eof(t)) {
1683         protocol_error(c);
1684         return;
1685     }
1686
1687     if (!c->authorized) {
1688         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1689         return;
1690     }
1691
1692     if (pa_autoload_remove(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE) < 0) {
1693         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1694         return;
1695     }
1696
1697     pa_pstream_send_simple_ack(c->pstream, tag);
1698 }
1699
1700 static void autoload_fill_tagstruct(struct pa_tagstruct *t, struct pa_autoload_entry *e) {
1701     assert(t && e);
1702     pa_tagstruct_puts(t, e->name);
1703     pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1);
1704     pa_tagstruct_puts(t, e->module);
1705     pa_tagstruct_puts(t, e->argument);
1706 }
1707
1708 static void command_get_autoload_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1709     struct connection *c = userdata;
1710     struct pa_autoload_entry *a = NULL;
1711     uint32_t type;
1712     const char *name;
1713     struct pa_tagstruct *reply;
1714     assert(c && t);
1715
1716     if (pa_tagstruct_gets(t, &name) < 0 || name ||
1717         pa_tagstruct_getu32(t, &type) < 0 || type > 1 ||
1718         !pa_tagstruct_eof(t)) {
1719         protocol_error(c);
1720         return;
1721     }
1722
1723     if (!c->authorized) {
1724         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1725         return;
1726     }
1727
1728     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)) {
1729         pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY);
1730         return;
1731     }
1732
1733     reply = pa_tagstruct_new(NULL, 0);
1734     assert(reply);
1735     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1736     pa_tagstruct_putu32(reply, tag);
1737     autoload_fill_tagstruct(reply, a);
1738     pa_pstream_send_tagstruct(c->pstream, reply);
1739 }
1740
1741 static void command_get_autoload_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
1742     struct connection *c = userdata;
1743     struct pa_tagstruct *reply;
1744     assert(c && t);
1745
1746     if (!pa_tagstruct_eof(t)) {
1747         protocol_error(c);
1748         return;
1749     }
1750
1751     if (!c->authorized) {
1752         pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
1753         return;
1754     }
1755
1756     reply = pa_tagstruct_new(NULL, 0);
1757     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1758     pa_tagstruct_putu32(reply, tag);
1759
1760     if (c->protocol->core->autoload_hashmap) {
1761         struct pa_autoload_entry *a;
1762         void *state = NULL;
1763
1764         while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state)))
1765             autoload_fill_tagstruct(reply, a);
1766     }
1767
1768     pa_pstream_send_tagstruct(c->pstream, reply);
1769 }
1770
1771 /*** pstream callbacks ***/
1772
1773 static void pstream_packet_callback(struct pa_pstream *p, struct pa_packet *packet, void *userdata) {
1774     struct connection *c = userdata;
1775     assert(p && packet && packet->data && c);
1776
1777     if (pa_pdispatch_run(c->pdispatch, packet, c) < 0) {
1778         pa_log(__FILE__": invalid packet.\n");
1779         connection_free(c);
1780     }
1781 }
1782
1783 static void pstream_memblock_callback(struct pa_pstream *p, uint32_t channel, uint32_t delta, const struct pa_memchunk *chunk, void *userdata) {
1784     struct connection *c = userdata;
1785     struct output_stream *stream;
1786     assert(p && chunk && userdata);
1787
1788     if (!(stream = pa_idxset_get_by_index(c->output_streams, channel))) {
1789         pa_log(__FILE__": client sent block for invalid stream.\n");
1790         connection_free(c);
1791         return;
1792     }
1793
1794     if (stream->type == PLAYBACK_STREAM) {
1795         struct playback_stream *p = (struct playback_stream*) stream;
1796         if (chunk->length >= p->requested_bytes)
1797             p->requested_bytes = 0;
1798         else
1799             p->requested_bytes -= chunk->length;
1800
1801         pa_memblockq_push_align(p->memblockq, chunk, delta);
1802         assert(p->sink_input);
1803         /*pa_log(__FILE__": after_recv: %u\n", pa_memblockq_get_length(p->memblockq));*/
1804
1805         pa_sink_notify(p->sink_input->sink);
1806 /*         pa_log(__FILE__": Recieved %u bytes.\n", chunk->length); */
1807
1808     } else {
1809         struct upload_stream *u = (struct upload_stream*) stream;
1810         size_t l;
1811         assert(u->type == UPLOAD_STREAM);
1812
1813         if (!u->memchunk.memblock) {
1814             if (u->length == chunk->length) {
1815                 u->memchunk = *chunk;
1816                 pa_memblock_ref(u->memchunk.memblock);
1817                 u->length = 0;
1818             } else {
1819                 u->memchunk.memblock = pa_memblock_new(u->length, c->protocol->core->memblock_stat);
1820                 u->memchunk.index = u->memchunk.length = 0;
1821             }
1822         }
1823
1824         assert(u->memchunk.memblock);
1825
1826         l = u->length;
1827         if (l > chunk->length)
1828             l = chunk->length;
1829
1830         if (l > 0) {
1831             memcpy((uint8_t*) u->memchunk.memblock->data + u->memchunk.index + u->memchunk.length,
1832                    (uint8_t*) chunk->memblock->data+chunk->index, l);
1833             u->memchunk.length += l;
1834             u->length -= l;
1835         }
1836     }
1837 }
1838
1839 static void pstream_die_callback(struct pa_pstream *p, void *userdata) {
1840     struct connection *c = userdata;
1841     assert(p && c);
1842     connection_free(c);
1843
1844 /*    pa_log(__FILE__": connection died.\n");*/
1845 }
1846
1847
1848 static void pstream_drain_callback(struct pa_pstream *p, void *userdata) {
1849     struct connection *c = userdata;
1850     assert(p && c);
1851
1852     send_memblock(c);
1853 }
1854
1855 /*** client callbacks ***/
1856
1857 static void client_kill_cb(struct pa_client *c) {
1858     assert(c && c->userdata);
1859     connection_free(c->userdata);
1860 }
1861
1862 /*** socket server callbacks ***/
1863
1864 static void on_connection(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata) {
1865     struct pa_protocol_native *p = userdata;
1866     struct connection *c;
1867     assert(io && p);
1868
1869     c = pa_xmalloc(sizeof(struct connection));
1870
1871     c->authorized =!! p->public;
1872     c->protocol = p;
1873     assert(p->core);
1874     c->client = pa_client_new(p->core, "NATIVE", "Client");
1875     assert(c->client);
1876     c->client->kill = client_kill_cb;
1877     c->client->userdata = c;
1878     c->client->owner = p->module;
1879
1880     c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->memblock_stat);
1881     assert(c->pstream);
1882
1883     pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
1884     pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
1885     pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
1886     pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
1887
1888     c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
1889     assert(c->pdispatch);
1890
1891     c->record_streams = pa_idxset_new(NULL, NULL);
1892     c->output_streams = pa_idxset_new(NULL, NULL);
1893     assert(c->record_streams && c->output_streams);
1894
1895     c->rrobin_index = PA_IDXSET_INVALID;
1896     c->subscription = NULL;
1897
1898     pa_idxset_put(p->connections, c, NULL);
1899 }
1900
1901 /*** module entry points ***/
1902
1903 static struct pa_protocol_native* protocol_new_internal(struct pa_core *c, struct pa_module *m, struct pa_modargs *ma) {
1904     struct pa_protocol_native *p;
1905     int public = 0;
1906     assert(c && ma);
1907
1908     if (pa_modargs_get_value_boolean(ma, "public", &public) < 0) {
1909         pa_log(__FILE__": public= expects a boolean argument.\n");
1910         return NULL;
1911     }
1912
1913     p = pa_xmalloc(sizeof(struct pa_protocol_native));
1914
1915     if (pa_authkey_load_from_home(pa_modargs_get_value(ma, "cookie", PA_NATIVE_COOKIE_FILE), p->auth_cookie, sizeof(p->auth_cookie)) < 0) {
1916         pa_xfree(p);
1917         return NULL;
1918     }
1919
1920     p->module = m;
1921     p->public = public;
1922     p->server = NULL;
1923     p->core = c;
1924     p->connections = pa_idxset_new(NULL, NULL);
1925     assert(p->connections);
1926
1927     return p;
1928 }
1929
1930 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) {
1931     struct pa_protocol_native *p;
1932
1933     if (!(p = protocol_new_internal(core, m, ma)))
1934         return NULL;
1935
1936     p->server = server;
1937     pa_socket_server_set_callback(p->server, on_connection, p);
1938
1939     return p;
1940 }
1941
1942 void pa_protocol_native_free(struct pa_protocol_native *p) {
1943     struct connection *c;
1944     assert(p);
1945
1946     while ((c = pa_idxset_first(p->connections, NULL)))
1947         connection_free(c);
1948     pa_idxset_free(p->connections, NULL, NULL);
1949
1950     if (p->server)
1951         pa_socket_server_unref(p->server);
1952
1953     pa_xfree(p);
1954 }
1955
1956 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) {
1957     struct pa_protocol_native *p;
1958
1959     if (!(p = protocol_new_internal(core, m, ma)))
1960         return NULL;
1961
1962     on_connection(NULL, io, p);
1963
1964     return p;
1965 }