code.delx.au - pulseaudio/blob - src/pulsecore/protocol-native.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31
  32 #include <pulse/timeval.h>
  33 #include <pulse/version.h>
  34 #include <pulse/utf8.h>
  35 #include <pulse/util.h>
  36 #include <pulse/xmalloc.h>
  37
  38 #include <pulsecore/native-common.h>
  39 #include <pulsecore/packet.h>
  40 #include <pulsecore/client.h>
  41 #include <pulsecore/source-output.h>
  42 #include <pulsecore/sink-input.h>
  43 #include <pulsecore/pstream.h>
  44 #include <pulsecore/tagstruct.h>
  45 #include <pulsecore/pdispatch.h>
  46 #include <pulsecore/pstream-util.h>
  47 #include <pulsecore/authkey.h>
  48 #include <pulsecore/namereg.h>
  49 #include <pulsecore/core-scache.h>
  50 #include <pulsecore/core-subscribe.h>
  51 #include <pulsecore/log.h>
  52 #include <pulsecore/strlist.h>
  53 #include <pulsecore/shared.h>
  54 #include <pulsecore/sample-util.h>
  55 #include <pulsecore/llist.h>
  56 #include <pulsecore/creds.h>
  57 #include <pulsecore/core-util.h>
  58 #include <pulsecore/ipacl.h>
  59 #include <pulsecore/thread-mq.h>
  60
  61 #include "protocol-native.h"
  62
  63 /* Kick a client if it doesn't authenticate within this time */
  64 #define AUTH_TIMEOUT 60
  65
  66 /* Don't accept more connection than this */
  67 #define MAX_CONNECTIONS 64
  68
  69 #define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */
  70 #define DEFAULT_TLENGTH_MSEC 2000 /* 2s */
  71 #define DEFAULT_PROCESS_MSEC 20   /* 20ms */
  72 #define DEFAULT_FRAGSIZE_MSEC DEFAULT_TLENGTH_MSEC
  73
  74 struct pa_native_protocol;
  75
  76 typedef struct record_stream {
  77     pa_msgobject parent;
  78
  79     pa_native_connection *connection;
  80     uint32_t index;
  81
  82     pa_source_output *source_output;
  83     pa_memblockq *memblockq;
  84     size_t fragment_size;
  85     pa_usec_t source_latency;
  86 } record_stream;
  87
  88 PA_DECLARE_CLASS(record_stream);
  89 #define RECORD_STREAM(o) (record_stream_cast(o))
  90 static PA_DEFINE_CHECK_TYPE(record_stream, pa_msgobject);
  91
  92 typedef struct output_stream {
  93     pa_msgobject parent;
  94 } output_stream;
  95
  96 PA_DECLARE_CLASS(output_stream);
  97 #define OUTPUT_STREAM(o) (output_stream_cast(o))
  98 static PA_DEFINE_CHECK_TYPE(output_stream, pa_msgobject);
  99
 100 typedef struct playback_stream {
 101     output_stream parent;
 102
 103     pa_native_connection *connection;
 104     uint32_t index;
 105
 106     pa_sink_input *sink_input;
 107     pa_memblockq *memblockq;
 108     pa_bool_t is_underrun:1;
 109     pa_bool_t drain_request:1;
 110     uint32_t drain_tag;
 111     uint32_t syncid;
 112
 113     pa_atomic_t missing;
 114     size_t minreq;
 115     pa_usec_t sink_latency;
 116
 117     /* Only updated after SINK_INPUT_MESSAGE_UPDATE_LATENCY */
 118     int64_t read_index, write_index;
 119     size_t render_memblockq_length;
 120 } playback_stream;
 121
 122 PA_DECLARE_CLASS(playback_stream);
 123 #define PLAYBACK_STREAM(o) (playback_stream_cast(o))
 124 static PA_DEFINE_CHECK_TYPE(playback_stream, output_stream);
 125
 126 typedef struct upload_stream {
 127     output_stream parent;
 128
 129     pa_native_connection *connection;
 130     uint32_t index;
 131
 132     pa_memchunk memchunk;
 133     size_t length;
 134     char *name;
 135     pa_sample_spec sample_spec;
 136     pa_channel_map channel_map;
 137     pa_proplist *proplist;
 138 } upload_stream;
 139
 140 PA_DECLARE_CLASS(upload_stream);
 141 #define UPLOAD_STREAM(o) (upload_stream_cast(o))
 142 static PA_DEFINE_CHECK_TYPE(upload_stream, output_stream);
 143
 144 struct pa_native_connection {
 145     pa_msgobject parent;
 146     pa_native_protocol *protocol;
 147     pa_native_options *options;
 148     pa_bool_t authorized:1;
 149     pa_bool_t is_local:1;
 150     uint32_t version;
 151     pa_client *client;
 152     pa_pstream *pstream;
 153     pa_pdispatch *pdispatch;
 154     pa_idxset *record_streams, *output_streams;
 155     uint32_t rrobin_index;
 156     pa_subscription *subscription;
 157     pa_time_event *auth_timeout_event;
 158 };
 159
 160 PA_DECLARE_CLASS(pa_native_connection);
 161 #define PA_NATIVE_CONNECTION(o) (pa_native_connection_cast(o))
 162 static PA_DEFINE_CHECK_TYPE(pa_native_connection, pa_msgobject);
 163
 164 struct pa_native_protocol {
 165     PA_REFCNT_DECLARE;
 166
 167     pa_core *core;
 168     pa_idxset *connections;
 169
 170     pa_strlist *servers;
 171     pa_hook hooks[PA_NATIVE_HOOK_MAX];
 172
 173     pa_hashmap *extensions;
 174 };
 175
 176 enum {
 177     SINK_INPUT_MESSAGE_POST_DATA = PA_SINK_INPUT_MESSAGE_MAX, /* data from main loop to sink input */
 178     SINK_INPUT_MESSAGE_DRAIN, /* disabled prebuf, get playback started. */
 179     SINK_INPUT_MESSAGE_FLUSH,
 180     SINK_INPUT_MESSAGE_TRIGGER,
 181     SINK_INPUT_MESSAGE_SEEK,
 182     SINK_INPUT_MESSAGE_PREBUF_FORCE,
 183     SINK_INPUT_MESSAGE_UPDATE_LATENCY
 184 };
 185
 186 enum {
 187     PLAYBACK_STREAM_MESSAGE_REQUEST_DATA,      /* data requested from sink input from the main loop */
 188     PLAYBACK_STREAM_MESSAGE_UNDERFLOW,
 189     PLAYBACK_STREAM_MESSAGE_OVERFLOW,
 190     PLAYBACK_STREAM_MESSAGE_DRAIN_ACK,
 191     PLAYBACK_STREAM_MESSAGE_STARTED
 192 };
 193
 194 enum {
 195     RECORD_STREAM_MESSAGE_POST_DATA         /* data from source output to main loop */
 196 };
 197
 198 enum {
 199     CONNECTION_MESSAGE_RELEASE,
 200     CONNECTION_MESSAGE_REVOKE
 201 };
 202
 203 static int sink_input_pop_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk);
 204 static void sink_input_kill_cb(pa_sink_input *i);
 205 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend);
 206 static void sink_input_moved_cb(pa_sink_input *i);
 207 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes);
 208 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes);
 209 static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes);
 210 static void sink_input_send_event_cb(pa_sink_input *i, const char *event, pa_proplist *pl);
 211
 212 static void native_connection_send_memblock(pa_native_connection *c);
 213 static void playback_stream_request_bytes(struct playback_stream*s);
 214
 215 static void source_output_kill_cb(pa_source_output *o);
 216 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk);
 217 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend);
 218 static void source_output_moved_cb(pa_source_output *o);
 219 static pa_usec_t source_output_get_latency_cb(pa_source_output *o);
 220 static void source_output_send_event_cb(pa_source_output *o, const char *event, pa_proplist *pl);
 221
 222 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
 223
 224 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 225 static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 226 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 227 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 228 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 229 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 230 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 231 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 232 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 233 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 234 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 235 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 236 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 237 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 238 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 239 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 240 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 241 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 242 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 243 static void command_set_volume(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 244 static void command_set_mute(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 245 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 246 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 247 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 248 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 249 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 250 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 251 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 252 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 253 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 254 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 255 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 256 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 257 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 258 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 259 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 260 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 261 static void command_set_card_profile(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 262
 263 static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
 264     [PA_COMMAND_ERROR] = NULL,
 265     [PA_COMMAND_TIMEOUT] = NULL,
 266     [PA_COMMAND_REPLY] = NULL,
 267     [PA_COMMAND_CREATE_PLAYBACK_STREAM] = command_create_playback_stream,
 268     [PA_COMMAND_DELETE_PLAYBACK_STREAM] = command_delete_stream,
 269     [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = command_drain_playback_stream,
 270     [PA_COMMAND_CREATE_RECORD_STREAM] = command_create_record_stream,
 271     [PA_COMMAND_DELETE_RECORD_STREAM] = command_delete_stream,
 272     [PA_COMMAND_AUTH] = command_auth,
 273     [PA_COMMAND_REQUEST] = NULL,
 274     [PA_COMMAND_EXIT] = command_exit,
 275     [PA_COMMAND_SET_CLIENT_NAME] = command_set_client_name,
 276     [PA_COMMAND_LOOKUP_SINK] = command_lookup,
 277     [PA_COMMAND_LOOKUP_SOURCE] = command_lookup,
 278     [PA_COMMAND_STAT] = command_stat,
 279     [PA_COMMAND_GET_PLAYBACK_LATENCY] = command_get_playback_latency,
 280     [PA_COMMAND_GET_RECORD_LATENCY] = command_get_record_latency,
 281     [PA_COMMAND_CREATE_UPLOAD_STREAM] = command_create_upload_stream,
 282     [PA_COMMAND_DELETE_UPLOAD_STREAM] = command_delete_stream,
 283     [PA_COMMAND_FINISH_UPLOAD_STREAM] = command_finish_upload_stream,
 284     [PA_COMMAND_PLAY_SAMPLE] = command_play_sample,
 285     [PA_COMMAND_REMOVE_SAMPLE] = command_remove_sample,
 286     [PA_COMMAND_GET_SINK_INFO] = command_get_info,
 287     [PA_COMMAND_GET_SOURCE_INFO] = command_get_info,
 288     [PA_COMMAND_GET_CLIENT_INFO] = command_get_info,
 289     [PA_COMMAND_GET_CARD_INFO] = command_get_info,
 290     [PA_COMMAND_GET_MODULE_INFO] = command_get_info,
 291     [PA_COMMAND_GET_SINK_INPUT_INFO] = command_get_info,
 292     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = command_get_info,
 293     [PA_COMMAND_GET_SAMPLE_INFO] = command_get_info,
 294     [PA_COMMAND_GET_SINK_INFO_LIST] = command_get_info_list,
 295     [PA_COMMAND_GET_SOURCE_INFO_LIST] = command_get_info_list,
 296     [PA_COMMAND_GET_MODULE_INFO_LIST] = command_get_info_list,
 297     [PA_COMMAND_GET_CLIENT_INFO_LIST] = command_get_info_list,
 298     [PA_COMMAND_GET_CARD_INFO_LIST] = command_get_info_list,
 299     [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = command_get_info_list,
 300     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = command_get_info_list,
 301     [PA_COMMAND_GET_SAMPLE_INFO_LIST] = command_get_info_list,
 302     [PA_COMMAND_GET_SERVER_INFO] = command_get_server_info,
 303     [PA_COMMAND_SUBSCRIBE] = command_subscribe,
 304
 305     [PA_COMMAND_SET_SINK_VOLUME] = command_set_volume,
 306     [PA_COMMAND_SET_SINK_INPUT_VOLUME] = command_set_volume,
 307     [PA_COMMAND_SET_SOURCE_VOLUME] = command_set_volume,
 308
 309     [PA_COMMAND_SET_SINK_MUTE] = command_set_mute,
 310     [PA_COMMAND_SET_SINK_INPUT_MUTE] = command_set_mute,
 311     [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute,
 312
 313     [PA_COMMAND_SUSPEND_SINK] = command_suspend,
 314     [PA_COMMAND_SUSPEND_SOURCE] = command_suspend,
 315
 316     [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream,
 317     [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 318     [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 319     [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 320
 321     [PA_COMMAND_CORK_RECORD_STREAM] = command_cork_record_stream,
 322     [PA_COMMAND_FLUSH_RECORD_STREAM] = command_flush_record_stream,
 323
 324     [PA_COMMAND_SET_DEFAULT_SINK] = command_set_default_sink_or_source,
 325     [PA_COMMAND_SET_DEFAULT_SOURCE] = command_set_default_sink_or_source,
 326     [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = command_set_stream_name,
 327     [PA_COMMAND_SET_RECORD_STREAM_NAME] = command_set_stream_name,
 328     [PA_COMMAND_KILL_CLIENT] = command_kill,
 329     [PA_COMMAND_KILL_SINK_INPUT] = command_kill,
 330     [PA_COMMAND_KILL_SOURCE_OUTPUT] = command_kill,
 331     [PA_COMMAND_LOAD_MODULE] = command_load_module,
 332     [PA_COMMAND_UNLOAD_MODULE] = command_unload_module,
 333
 334     [PA_COMMAND_GET_AUTOLOAD_INFO___OBSOLETE] = NULL,
 335     [PA_COMMAND_GET_AUTOLOAD_INFO_LIST___OBSOLETE] = NULL,
 336     [PA_COMMAND_ADD_AUTOLOAD___OBSOLETE] = NULL,
 337     [PA_COMMAND_REMOVE_AUTOLOAD___OBSOLETE] = NULL,
 338
 339     [PA_COMMAND_MOVE_SINK_INPUT] = command_move_stream,
 340     [PA_COMMAND_MOVE_SOURCE_OUTPUT] = command_move_stream,
 341
 342     [PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 343     [PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 344
 345     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 346     [PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 347
 348     [PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST] = command_update_proplist,
 349     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST] = command_update_proplist,
 350     [PA_COMMAND_UPDATE_CLIENT_PROPLIST] = command_update_proplist,
 351
 352     [PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST] = command_remove_proplist,
 353     [PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST] = command_remove_proplist,
 354     [PA_COMMAND_REMOVE_CLIENT_PROPLIST] = command_remove_proplist,
 355
 356     [PA_COMMAND_SET_CARD_PROFILE] = command_set_card_profile,
 357
 358     [PA_COMMAND_EXTENSION] = command_extension
 359 };
 360
 361 /* structure management */
 362
 363 static void upload_stream_unlink(upload_stream *s) {
 364     pa_assert(s);
 365
 366     if (!s->connection)
 367         return;
 368
 369     pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s);
 370     s->connection = NULL;
 371     upload_stream_unref(s);
 372 }
 373
 374 static void upload_stream_free(pa_object *o) {
 375     upload_stream *s = UPLOAD_STREAM(o);
 376     pa_assert(s);
 377
 378     upload_stream_unlink(s);
 379
 380     pa_xfree(s->name);
 381
 382     if (s->proplist)
 383         pa_proplist_free(s->proplist);
 384
 385     if (s->memchunk.memblock)
 386         pa_memblock_unref(s->memchunk.memblock);
 387
 388     pa_xfree(s);
 389 }
 390
 391 static upload_stream* upload_stream_new(
 392         pa_native_connection *c,
 393         const pa_sample_spec *ss,
 394         const pa_channel_map *map,
 395         const char *name,
 396         size_t length,
 397         pa_proplist *p) {
 398
 399     upload_stream *s;
 400
 401     pa_assert(c);
 402     pa_assert(ss);
 403     pa_assert(name);
 404     pa_assert(length > 0);
 405     pa_assert(p);
 406
 407     s = pa_msgobject_new(upload_stream);
 408     s->parent.parent.parent.free = upload_stream_free;
 409     s->connection = c;
 410     s->sample_spec = *ss;
 411     s->channel_map = *map;
 412     s->name = pa_xstrdup(name);
 413     pa_memchunk_reset(&s->memchunk);
 414     s->length = length;
 415     s->proplist = pa_proplist_copy(p);
 416     pa_proplist_update(s->proplist, PA_UPDATE_MERGE, c->client->proplist);
 417
 418     pa_idxset_put(c->output_streams, s, &s->index);
 419
 420     return s;
 421 }
 422
 423 static void record_stream_unlink(record_stream *s) {
 424     pa_assert(s);
 425
 426     if (!s->connection)
 427         return;
 428
 429     if (s->source_output) {
 430         pa_source_output_unlink(s->source_output);
 431         pa_source_output_unref(s->source_output);
 432         s->source_output = NULL;
 433     }
 434
 435     pa_assert_se(pa_idxset_remove_by_data(s->connection->record_streams, s, NULL) == s);
 436     s->connection = NULL;
 437     record_stream_unref(s);
 438 }
 439
 440 static void record_stream_free(pa_object *o) {
 441     record_stream *s = RECORD_STREAM(o);
 442     pa_assert(s);
 443
 444     record_stream_unlink(s);
 445
 446     pa_memblockq_free(s->memblockq);
 447     pa_xfree(s);
 448 }
 449
 450 static int record_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
 451     record_stream *s = RECORD_STREAM(o);
 452     record_stream_assert_ref(s);
 453
 454     if (!s->connection)
 455         return -1;
 456
 457     switch (code) {
 458
 459         case RECORD_STREAM_MESSAGE_POST_DATA:
 460
 461             if (pa_memblockq_push_align(s->memblockq, chunk) < 0) {
 462 /*                 pa_log_warn("Failed to push data into output queue."); */
 463                 return -1;
 464             }
 465
 466             if (!pa_pstream_is_pending(s->connection->pstream))
 467                 native_connection_send_memblock(s->connection);
 468
 469             break;
 470     }
 471
 472     return 0;
 473 }
 474
 475 static void fix_record_buffer_attr_pre(
 476         record_stream *s,
 477         pa_bool_t adjust_latency,
 478         pa_bool_t early_requests,
 479         uint32_t *maxlength,
 480         uint32_t *fragsize) {
 481
 482     size_t frame_size;
 483     pa_usec_t orig_fragsize_usec, fragsize_usec, source_usec;
 484
 485     pa_assert(s);
 486     pa_assert(maxlength);
 487     pa_assert(fragsize);
 488
 489     frame_size = pa_frame_size(&s->source_output->sample_spec);
 490
 491     if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 492         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 493     if (*maxlength <= 0)
 494         *maxlength = (uint32_t) frame_size;
 495
 496     if (*fragsize == (uint32_t) -1)
 497         *fragsize = (uint32_t) pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*PA_USEC_PER_MSEC, &s->source_output->sample_spec);
 498     if (*fragsize <= 0)
 499         *fragsize = (uint32_t) frame_size;
 500
 501     orig_fragsize_usec = fragsize_usec = pa_bytes_to_usec(*fragsize, &s->source_output->sample_spec);
 502
 503     if (early_requests) {
 504
 505         /* In early request mode we need to emulate the classic
 506          * fragment-based playback model. We do this setting the source
 507          * latency to the fragment size. */
 508
 509         source_usec = fragsize_usec;
 510
 511     } else if (adjust_latency) {
 512
 513         /* So, the user asked us to adjust the latency according to
 514          * what the source can provide. Half the latency will be
 515          * spent on the hw buffer, half of it in the async buffer
 516          * queue we maintain for each client. */
 517
 518         source_usec = fragsize_usec/2;
 519
 520     } else {
 521
 522         /* Ok, the user didn't ask us to adjust the latency, hence we
 523          * don't */
 524
 525         source_usec = 0;
 526     }
 527
 528     if (source_usec > 0)
 529         s->source_latency = pa_source_output_set_requested_latency(s->source_output, source_usec);
 530     else
 531         s->source_latency = 0;
 532
 533     if (early_requests) {
 534
 535         /* Ok, we didn't necessarily get what we were asking for, so
 536          * let's tell the user */
 537
 538         fragsize_usec = s->source_latency;
 539
 540     } else if (adjust_latency) {
 541
 542         /* Now subtract what we actually got */
 543
 544         if (fragsize_usec >= s->source_latency*2)
 545             fragsize_usec -= s->source_latency;
 546         else
 547             fragsize_usec = s->source_latency;
 548     }
 549
 550     if (pa_usec_to_bytes(orig_fragsize_usec, &s->source_output->sample_spec) !=
 551         pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec))
 552
 553         *fragsize = (uint32_t) pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec);
 554
 555     if (*fragsize <= 0)
 556         *fragsize = (uint32_t) frame_size;
 557 }
 558
 559 static void fix_record_buffer_attr_post(
 560         record_stream *s,
 561         uint32_t *maxlength,
 562         uint32_t *fragsize) {
 563
 564     size_t base;
 565
 566     pa_assert(s);
 567     pa_assert(maxlength);
 568     pa_assert(fragsize);
 569
 570     *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
 571
 572     base = pa_frame_size(&s->source_output->sample_spec);
 573
 574     s->fragment_size = (*fragsize/base)*base;
 575     if (s->fragment_size <= 0)
 576         s->fragment_size = base;
 577
 578     if (s->fragment_size > *maxlength)
 579         s->fragment_size = *maxlength;
 580
 581     *fragsize = (uint32_t) s->fragment_size;
 582 }
 583
 584 static record_stream* record_stream_new(
 585         pa_native_connection *c,
 586         pa_source *source,
 587         pa_sample_spec *ss,
 588         pa_channel_map *map,
 589         pa_bool_t peak_detect,
 590         uint32_t *maxlength,
 591         uint32_t *fragsize,
 592         pa_source_output_flags_t flags,
 593         pa_proplist *p,
 594         pa_bool_t adjust_latency,
 595         pa_sink_input *direct_on_input,
 596         pa_bool_t early_requests,
 597         int *ret) {
 598
 599     record_stream *s;
 600     pa_source_output *source_output = NULL;
 601     size_t base;
 602     pa_source_output_new_data data;
 603
 604     pa_assert(c);
 605     pa_assert(ss);
 606     pa_assert(maxlength);
 607     pa_assert(p);
 608     pa_assert(ret);
 609
 610     pa_source_output_new_data_init(&data);
 611
 612     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
 613     data.driver = __FILE__;
 614     data.module = c->options->module;
 615     data.client = c->client;
 616     data.source = source;
 617     data.direct_on_input = direct_on_input;
 618     pa_source_output_new_data_set_sample_spec(&data, ss);
 619     pa_source_output_new_data_set_channel_map(&data, map);
 620     if (peak_detect)
 621         data.resample_method = PA_RESAMPLER_PEAKS;
 622
 623     *ret = -pa_source_output_new(&source_output, c->protocol->core, &data, flags);
 624
 625     pa_source_output_new_data_done(&data);
 626
 627     if (!source_output)
 628         return NULL;
 629
 630     s = pa_msgobject_new(record_stream);
 631     s->parent.parent.free = record_stream_free;
 632     s->parent.process_msg = record_stream_process_msg;
 633     s->connection = c;
 634     s->source_output = source_output;
 635
 636     s->source_output->push = source_output_push_cb;
 637     s->source_output->kill = source_output_kill_cb;
 638     s->source_output->get_latency = source_output_get_latency_cb;
 639     s->source_output->moved = source_output_moved_cb;
 640     s->source_output->suspend = source_output_suspend_cb;
 641     s->source_output->send_event = source_output_send_event_cb;
 642     s->source_output->userdata = s;
 643
 644     fix_record_buffer_attr_pre(s, adjust_latency, early_requests, maxlength, fragsize);
 645
 646     s->memblockq = pa_memblockq_new(
 647             0,
 648             *maxlength,
 649             0,
 650             base = pa_frame_size(&source_output->sample_spec),
 651             1,
 652             0,
 653             0,
 654             NULL);
 655
 656     fix_record_buffer_attr_post(s, maxlength, fragsize);
 657
 658     *ss = s->source_output->sample_spec;
 659     *map = s->source_output->channel_map;
 660
 661     pa_idxset_put(c->record_streams, s, &s->index);
 662
 663     pa_log_info("Final latency %0.2f ms = %0.2f ms + %0.2f ms",
 664                 ((double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) + (double) s->source_latency) / PA_USEC_PER_MSEC,
 665                 (double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) / PA_USEC_PER_MSEC,
 666                 (double) s->source_latency / PA_USEC_PER_MSEC);
 667
 668     pa_source_output_put(s->source_output);
 669     return s;
 670 }
 671
 672 static void record_stream_send_killed(record_stream *r) {
 673     pa_tagstruct *t;
 674     record_stream_assert_ref(r);
 675
 676     t = pa_tagstruct_new(NULL, 0);
 677     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED);
 678     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 679     pa_tagstruct_putu32(t, r->index);
 680     pa_pstream_send_tagstruct(r->connection->pstream, t);
 681 }
 682
 683 static void playback_stream_unlink(playback_stream *s) {
 684     pa_assert(s);
 685
 686     if (!s->connection)
 687         return;
 688
 689     if (s->sink_input) {
 690         pa_sink_input_unlink(s->sink_input);
 691         pa_sink_input_unref(s->sink_input);
 692         s->sink_input = NULL;
 693     }
 694
 695     if (s->drain_request)
 696         pa_pstream_send_error(s->connection->pstream, s->drain_tag, PA_ERR_NOENTITY);
 697
 698     pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s);
 699     s->connection = NULL;
 700     playback_stream_unref(s);
 701 }
 702
 703 static void playback_stream_free(pa_object* o) {
 704     playback_stream *s = PLAYBACK_STREAM(o);
 705     pa_assert(s);
 706
 707     playback_stream_unlink(s);
 708
 709     pa_memblockq_free(s->memblockq);
 710     pa_xfree(s);
 711 }
 712
 713 static int playback_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
 714     playback_stream *s = PLAYBACK_STREAM(o);
 715     playback_stream_assert_ref(s);
 716
 717     if (!s->connection)
 718         return -1;
 719
 720     switch (code) {
 721         case PLAYBACK_STREAM_MESSAGE_REQUEST_DATA: {
 722             pa_tagstruct *t;
 723             uint32_t l = 0;
 724
 725             for (;;) {
 726                 if ((l = (uint32_t) pa_atomic_load(&s->missing)) <= 0)
 727                     break;
 728
 729                 if (pa_atomic_cmpxchg(&s->missing, (int) l, 0))
 730                     break;
 731             }
 732
 733             if (l <= 0)
 734                 break;
 735
 736             t = pa_tagstruct_new(NULL, 0);
 737             pa_tagstruct_putu32(t, PA_COMMAND_REQUEST);
 738             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 739             pa_tagstruct_putu32(t, s->index);
 740             pa_tagstruct_putu32(t, l);
 741             pa_pstream_send_tagstruct(s->connection->pstream, t);
 742
 743 /*             pa_log("Requesting %lu bytes", (unsigned long) l); */
 744             break;
 745         }
 746
 747         case PLAYBACK_STREAM_MESSAGE_UNDERFLOW: {
 748             pa_tagstruct *t;
 749
 750 /*             pa_log("signalling underflow"); */
 751
 752             /* Report that we're empty */
 753             t = pa_tagstruct_new(NULL, 0);
 754             pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW);
 755             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 756             pa_tagstruct_putu32(t, s->index);
 757             pa_pstream_send_tagstruct(s->connection->pstream, t);
 758             break;
 759         }
 760
 761         case PLAYBACK_STREAM_MESSAGE_OVERFLOW: {
 762             pa_tagstruct *t;
 763
 764             /* Notify the user we're overflowed*/
 765             t = pa_tagstruct_new(NULL, 0);
 766             pa_tagstruct_putu32(t, PA_COMMAND_OVERFLOW);
 767             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 768             pa_tagstruct_putu32(t, s->index);
 769             pa_pstream_send_tagstruct(s->connection->pstream, t);
 770             break;
 771         }
 772
 773         case PLAYBACK_STREAM_MESSAGE_STARTED:
 774
 775             if (s->connection->version >= 13) {
 776                 pa_tagstruct *t;
 777
 778                 /* Notify the user we're overflowed*/
 779                 t = pa_tagstruct_new(NULL, 0);
 780                 pa_tagstruct_putu32(t, PA_COMMAND_STARTED);
 781                 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 782                 pa_tagstruct_putu32(t, s->index);
 783                 pa_pstream_send_tagstruct(s->connection->pstream, t);
 784             }
 785
 786             break;
 787
 788         case PLAYBACK_STREAM_MESSAGE_DRAIN_ACK:
 789             pa_pstream_send_simple_ack(s->connection->pstream, PA_PTR_TO_UINT(userdata));
 790             break;
 791     }
 792
 793     return 0;
 794 }
 795
 796 static void fix_playback_buffer_attr_pre(
 797         playback_stream *s,
 798         pa_bool_t adjust_latency,
 799         pa_bool_t early_requests,
 800         uint32_t *maxlength,
 801         uint32_t *tlength,
 802         uint32_t* prebuf,
 803         uint32_t* minreq) {
 804
 805     size_t frame_size;
 806     pa_usec_t orig_tlength_usec, tlength_usec, orig_minreq_usec, minreq_usec, sink_usec;
 807
 808     pa_assert(s);
 809     pa_assert(maxlength);
 810     pa_assert(tlength);
 811     pa_assert(prebuf);
 812     pa_assert(minreq);
 813
 814     frame_size = pa_frame_size(&s->sink_input->sample_spec);
 815
 816     if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 817         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 818     if (*maxlength <= 0)
 819         *maxlength = (uint32_t) frame_size;
 820
 821     if (*tlength == (uint32_t) -1)
 822         *tlength = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_TLENGTH_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec);
 823     if (*tlength <= 0)
 824         *tlength = (uint32_t) frame_size;
 825
 826     if (*minreq == (uint32_t) -1)
 827         *minreq = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_PROCESS_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec);
 828     if (*minreq <= 0)
 829         *minreq = (uint32_t) frame_size;
 830
 831     if (*tlength < *minreq+frame_size)
 832         *tlength = *minreq+(uint32_t) frame_size;
 833
 834     orig_tlength_usec = tlength_usec = pa_bytes_to_usec(*tlength, &s->sink_input->sample_spec);
 835     orig_minreq_usec = minreq_usec = pa_bytes_to_usec(*minreq, &s->sink_input->sample_spec);
 836
 837     pa_log_info("Requested tlength=%0.2f ms, minreq=%0.2f ms",
 838                 (double) tlength_usec / PA_USEC_PER_MSEC,
 839                 (double) minreq_usec / PA_USEC_PER_MSEC);
 840
 841     if (early_requests) {
 842
 843         /* In early request mode we need to emulate the classic
 844          * fragment-based playback model. We do this setting the sink
 845          * latency to the fragment size. */
 846
 847         sink_usec = minreq_usec;
 848
 849         pa_log_debug("Early requests mode enabled, configuring sink latency to minreq.");
 850
 851     } else if (adjust_latency) {
 852
 853         /* So, the user asked us to adjust the latency of the stream
 854          * buffer according to the what the sink can provide. The
 855          * tlength passed in shall be the overall latency. Roughly
 856          * half the latency will be spent on the hw buffer, the other
 857          * half of it in the async buffer queue we maintain for each
 858          * client. In between we'll have a safety space of size
 859          * 2*minreq. Why the 2*minreq? When the hw buffer is completey
 860          * empty and needs to be filled, then our buffer must have
 861          * enough data to fulfill this request immediatly and thus
 862          * have at least the same tlength as the size of the hw
 863          * buffer. It additionally needs space for 2 times minreq
 864          * because if the buffer ran empty and a partial fillup
 865          * happens immediately on the next iteration we need to be
 866          * able to fulfill it and give the application also minreq
 867          * time to fill it up again for the next request Makes 2 times
 868          * minreq in plus.. */
 869
 870         if (tlength_usec > minreq_usec*2)
 871             sink_usec = (tlength_usec - minreq_usec*2)/2;
 872         else
 873             sink_usec = 0;
 874
 875         pa_log_debug("Adjust latency mode enabled, configuring sink latency to half of overall latency.");
 876
 877     } else {
 878
 879         /* Ok, the user didn't ask us to adjust the latency, but we
 880          * still need to make sure that the parameters from the user
 881          * do make sense. */
 882
 883         if (tlength_usec > minreq_usec*2)
 884             sink_usec = (tlength_usec - minreq_usec*2);
 885         else
 886             sink_usec = 0;
 887
 888         pa_log_debug("Traditional mode enabled, modifying sink usec only for compat with minreq.");
 889     }
 890
 891     s->sink_latency = pa_sink_input_set_requested_latency(s->sink_input, sink_usec);
 892
 893     if (early_requests) {
 894
 895         /* Ok, we didn't necessarily get what we were asking for, so
 896          * let's tell the user */
 897
 898         minreq_usec = s->sink_latency;
 899
 900     } else if (adjust_latency) {
 901
 902         /* Ok, we didn't necessarily get what we were asking for, so
 903          * let's subtract from what we asked for for the remaining
 904          * buffer space */
 905
 906         if (tlength_usec >= s->sink_latency)
 907             tlength_usec -= s->sink_latency;
 908     }
 909
 910     /* FIXME: This is actually larger than necessary, since not all of
 911      * the sink latency is actually rewritable. */
 912     if (tlength_usec < s->sink_latency + 2*minreq_usec)
 913         tlength_usec = s->sink_latency + 2*minreq_usec;
 914
 915     if (pa_usec_to_bytes_round_up(orig_tlength_usec, &s->sink_input->sample_spec) !=
 916         pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec))
 917         *tlength = (uint32_t) pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec);
 918
 919     if (pa_usec_to_bytes(orig_minreq_usec, &s->sink_input->sample_spec) !=
 920         pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec))
 921         *minreq = (uint32_t) pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec);
 922
 923     if (*minreq <= 0) {
 924         *minreq = (uint32_t) frame_size;
 925         *tlength += (uint32_t) frame_size*2;
 926     }
 927
 928     if (*tlength <= *minreq)
 929         *tlength = *minreq*2 + (uint32_t) frame_size;
 930
 931     if (*prebuf == (uint32_t) -1 || *prebuf > *tlength)
 932         *prebuf = *tlength;
 933 }
 934
 935 static void fix_playback_buffer_attr_post(
 936         playback_stream *s,
 937         uint32_t *maxlength,
 938         uint32_t *tlength,
 939         uint32_t* prebuf,
 940         uint32_t* minreq) {
 941
 942     pa_assert(s);
 943     pa_assert(maxlength);
 944     pa_assert(tlength);
 945     pa_assert(prebuf);
 946     pa_assert(minreq);
 947
 948     *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
 949     *tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq);
 950     *prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq);
 951     *minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq);
 952
 953     s->minreq = *minreq;
 954 }
 955
 956 static playback_stream* playback_stream_new(
 957         pa_native_connection *c,
 958         pa_sink *sink,
 959         pa_sample_spec *ss,
 960         pa_channel_map *map,
 961         uint32_t *maxlength,
 962         uint32_t *tlength,
 963         uint32_t *prebuf,
 964         uint32_t *minreq,
 965         pa_cvolume *volume,
 966         pa_bool_t muted,
 967         pa_bool_t muted_set,
 968         uint32_t syncid,
 969         uint32_t *missing,
 970         pa_sink_input_flags_t flags,
 971         pa_proplist *p,
 972         pa_bool_t adjust_latency,
 973         pa_bool_t early_requests,
 974         int *ret) {
 975
 976     playback_stream *s, *ssync;
 977     pa_sink_input *sink_input = NULL;
 978     pa_memchunk silence;
 979     uint32_t idx;
 980     int64_t start_index;
 981     pa_sink_input_new_data data;
 982
 983     pa_assert(c);
 984     pa_assert(ss);
 985     pa_assert(maxlength);
 986     pa_assert(tlength);
 987     pa_assert(prebuf);
 988     pa_assert(minreq);
 989     pa_assert(missing);
 990     pa_assert(p);
 991     pa_assert(ret);
 992
 993     /* Find syncid group */
 994     for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) {
 995
 996         if (!playback_stream_isinstance(ssync))
 997             continue;
 998
 999         if (ssync->syncid == syncid)
1000             break;
1001     }
1002
1003     /* Synced streams must connect to the same sink */
1004     if (ssync) {
1005
1006         if (!sink)
1007             sink = ssync->sink_input->sink;
1008         else if (sink != ssync->sink_input->sink) {
1009             *ret = PA_ERR_INVALID;
1010             return NULL;
1011         }
1012     }
1013
1014     pa_sink_input_new_data_init(&data);
1015
1016     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
1017     data.driver = __FILE__;
1018     data.module = c->options->module;
1019     data.client = c->client;
1020     data.sink = sink;
1021     pa_sink_input_new_data_set_sample_spec(&data, ss);
1022     pa_sink_input_new_data_set_channel_map(&data, map);
1023     if (volume)
1024         pa_sink_input_new_data_set_volume(&data, volume);
1025     if (muted_set)
1026         pa_sink_input_new_data_set_muted(&data, muted);
1027     data.sync_base = ssync ? ssync->sink_input : NULL;
1028
1029     *ret = -pa_sink_input_new(&sink_input, c->protocol->core, &data, flags);
1030
1031     pa_sink_input_new_data_done(&data);
1032
1033     if (!sink_input)
1034         return NULL;
1035
1036     s = pa_msgobject_new(playback_stream);
1037     s->parent.parent.parent.free = playback_stream_free;
1038     s->parent.parent.process_msg = playback_stream_process_msg;
1039     s->connection = c;
1040     s->syncid = syncid;
1041     s->sink_input = sink_input;
1042     s->is_underrun = TRUE;
1043     s->drain_request = FALSE;
1044     pa_atomic_store(&s->missing, 0);
1045
1046     s->sink_input->parent.process_msg = sink_input_process_msg;
1047     s->sink_input->pop = sink_input_pop_cb;
1048     s->sink_input->process_rewind = sink_input_process_rewind_cb;
1049     s->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
1050     s->sink_input->update_max_request = sink_input_update_max_request_cb;
1051     s->sink_input->kill = sink_input_kill_cb;
1052     s->sink_input->moved = sink_input_moved_cb;
1053     s->sink_input->suspend = sink_input_suspend_cb;
1054     s->sink_input->send_event = sink_input_send_event_cb;
1055     s->sink_input->userdata = s;
1056
1057     start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 0;
1058
1059     fix_playback_buffer_attr_pre(s, adjust_latency, early_requests, maxlength, tlength, prebuf, minreq);
1060     pa_sink_input_get_silence(sink_input, &silence);
1061
1062     s->memblockq = pa_memblockq_new(
1063             start_index,
1064             *maxlength,
1065             *tlength,
1066             pa_frame_size(&sink_input->sample_spec),
1067             *prebuf,
1068             *minreq,
1069             0,
1070             &silence);
1071
1072     pa_memblock_unref(silence.memblock);
1073     fix_playback_buffer_attr_post(s, maxlength, tlength, prebuf, minreq);
1074
1075     *missing = (uint32_t) pa_memblockq_pop_missing(s->memblockq);
1076
1077     *ss = s->sink_input->sample_spec;
1078     *map = s->sink_input->channel_map;
1079
1080     pa_idxset_put(c->output_streams, s, &s->index);
1081
1082     pa_log_info("Final latency %0.2f ms = %0.2f ms + 2*%0.2f ms + %0.2f ms",
1083                 ((double) pa_bytes_to_usec(*tlength, &sink_input->sample_spec) + (double) s->sink_latency) / PA_USEC_PER_MSEC,
1084                 (double) pa_bytes_to_usec(*tlength-*minreq*2, &sink_input->sample_spec) / PA_USEC_PER_MSEC,
1085                 (double) pa_bytes_to_usec(*minreq, &sink_input->sample_spec) / PA_USEC_PER_MSEC,
1086                 (double) s->sink_latency / PA_USEC_PER_MSEC);
1087
1088     pa_sink_input_put(s->sink_input);
1089     return s;
1090 }
1091
1092 /* Called from thread context */
1093 static void playback_stream_request_bytes(playback_stream *s) {
1094     size_t m, previous_missing;
1095
1096     playback_stream_assert_ref(s);
1097
1098     m = pa_memblockq_pop_missing(s->memblockq);
1099
1100     if (m <= 0)
1101         return;
1102
1103 /*     pa_log("request_bytes(%lu)", (unsigned long) m); */
1104
1105     previous_missing = (size_t) pa_atomic_add(&s->missing, (int) m);
1106
1107     if (pa_memblockq_prebuf_active(s->memblockq) ||
1108         (previous_missing < s->minreq && previous_missing+m >= s->minreq))
1109         pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL);
1110 }
1111
1112
1113 static void playback_stream_send_killed(playback_stream *p) {
1114     pa_tagstruct *t;
1115     playback_stream_assert_ref(p);
1116
1117     t = pa_tagstruct_new(NULL, 0);
1118     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED);
1119     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1120     pa_tagstruct_putu32(t, p->index);
1121     pa_pstream_send_tagstruct(p->connection->pstream, t);
1122 }
1123
1124 static int native_connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
1125     pa_native_connection *c = PA_NATIVE_CONNECTION(o);
1126     pa_native_connection_assert_ref(c);
1127
1128     if (!c->protocol)
1129         return -1;
1130
1131     switch (code) {
1132
1133         case CONNECTION_MESSAGE_REVOKE:
1134             pa_pstream_send_revoke(c->pstream, PA_PTR_TO_UINT(userdata));
1135             break;
1136
1137         case CONNECTION_MESSAGE_RELEASE:
1138             pa_pstream_send_release(c->pstream, PA_PTR_TO_UINT(userdata));
1139             break;
1140     }
1141
1142     return 0;
1143 }
1144
1145 static void native_connection_unlink(pa_native_connection *c) {
1146     record_stream *r;
1147     output_stream *o;
1148
1149     pa_assert(c);
1150
1151     if (!c->protocol)
1152         return;
1153
1154     pa_hook_fire(&c->protocol->hooks[PA_NATIVE_HOOK_CONNECTION_UNLINK], c);
1155
1156     if (c->options)
1157         pa_native_options_unref(c->options);
1158
1159     while ((r = pa_idxset_first(c->record_streams, NULL)))
1160         record_stream_unlink(r);
1161
1162     while ((o = pa_idxset_first(c->output_streams, NULL)))
1163         if (playback_stream_isinstance(o))
1164             playback_stream_unlink(PLAYBACK_STREAM(o));
1165         else
1166             upload_stream_unlink(UPLOAD_STREAM(o));
1167
1168     if (c->subscription)
1169         pa_subscription_free(c->subscription);
1170
1171     if (c->pstream)
1172         pa_pstream_unlink(c->pstream);
1173
1174     if (c->auth_timeout_event) {
1175         c->protocol->core->mainloop->time_free(c->auth_timeout_event);
1176         c->auth_timeout_event = NULL;
1177     }
1178
1179     pa_assert_se(pa_idxset_remove_by_data(c->protocol->connections, c, NULL) == c);
1180     c->protocol = NULL;
1181     pa_native_connection_unref(c);
1182 }
1183
1184 static void native_connection_free(pa_object *o) {
1185     pa_native_connection *c = PA_NATIVE_CONNECTION(o);
1186
1187     pa_assert(c);
1188
1189     native_connection_unlink(c);
1190
1191     pa_idxset_free(c->record_streams, NULL, NULL);
1192     pa_idxset_free(c->output_streams, NULL, NULL);
1193
1194     pa_pdispatch_unref(c->pdispatch);
1195     pa_pstream_unref(c->pstream);
1196     pa_client_free(c->client);
1197
1198     pa_xfree(c);
1199 }
1200
1201 static void native_connection_send_memblock(pa_native_connection *c) {
1202     uint32_t start;
1203     record_stream *r;
1204
1205     start = PA_IDXSET_INVALID;
1206     for (;;) {
1207         pa_memchunk chunk;
1208
1209         if (!(r = RECORD_STREAM(pa_idxset_rrobin(c->record_streams, &c->rrobin_index))))
1210             return;
1211
1212         if (start == PA_IDXSET_INVALID)
1213             start = c->rrobin_index;
1214         else if (start == c->rrobin_index)
1215             return;
1216
1217         if (pa_memblockq_peek(r->memblockq,  &chunk) >= 0) {
1218             pa_memchunk schunk = chunk;
1219
1220             if (schunk.length > r->fragment_size)
1221                 schunk.length = r->fragment_size;
1222
1223             pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk);
1224
1225             pa_memblockq_drop(r->memblockq, schunk.length);
1226             pa_memblock_unref(schunk.memblock);
1227
1228             return;
1229         }
1230     }
1231 }
1232
1233 /*** sink input callbacks ***/
1234
1235 static void handle_seek(playback_stream *s, int64_t indexw) {
1236     playback_stream_assert_ref(s);
1237
1238 /*     pa_log("handle_seek: %llu -- %i", (unsigned long long) s->sink_input->thread_info.underrun_for, pa_memblockq_is_readable(s->memblockq)); */
1239
1240     if (s->sink_input->thread_info.underrun_for > 0) {
1241
1242 /*         pa_log("%lu vs. %lu", (unsigned long) pa_memblockq_get_length(s->memblockq), (unsigned long) pa_memblockq_get_prebuf(s->memblockq)); */
1243
1244         if (pa_memblockq_is_readable(s->memblockq)) {
1245
1246             /* We just ended an underrun, let's ask the sink
1247              * for a complete rewind rewrite */
1248
1249             pa_log_debug("Requesting rewind due to end of underrun.");
1250             pa_sink_input_request_rewind(s->sink_input,
1251                                          (size_t) (s->sink_input->thread_info.underrun_for == (size_t) -1 ? 0 : s->sink_input->thread_info.underrun_for),
1252                                          FALSE, TRUE, FALSE);
1253         }
1254
1255     } else {
1256         int64_t indexr;
1257
1258         indexr = pa_memblockq_get_read_index(s->memblockq);
1259
1260         if (indexw < indexr) {
1261             /* OK, the sink already asked for this data, so
1262              * let's have it usk us again */
1263
1264             pa_log_debug("Requesting rewind due to rewrite.");
1265             pa_sink_input_request_rewind(s->sink_input, (size_t) (indexr - indexw), TRUE, FALSE, FALSE);
1266         }
1267     }
1268
1269     playback_stream_request_bytes(s);
1270 }
1271
1272 /* Called from thread context */
1273 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1274     pa_sink_input *i = PA_SINK_INPUT(o);
1275     playback_stream *s;
1276
1277     pa_sink_input_assert_ref(i);
1278     s = PLAYBACK_STREAM(i->userdata);
1279     playback_stream_assert_ref(s);
1280
1281     switch (code) {
1282
1283         case SINK_INPUT_MESSAGE_SEEK: {
1284             int64_t windex;
1285
1286             windex = pa_memblockq_get_write_index(s->memblockq);
1287             pa_memblockq_seek(s->memblockq, offset, PA_PTR_TO_UINT(userdata));
1288
1289             handle_seek(s, windex);
1290             return 0;
1291         }
1292
1293         case SINK_INPUT_MESSAGE_POST_DATA: {
1294             int64_t windex;
1295
1296             pa_assert(chunk);
1297
1298             windex = pa_memblockq_get_write_index(s->memblockq);
1299
1300 /*             pa_log("sink input post: %lu %lli", (unsigned long) chunk->length, (long long) windex); */
1301
1302             if (pa_memblockq_push_align(s->memblockq, chunk) < 0) {
1303                 pa_log_warn("Failed to push data into queue");
1304                 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_OVERFLOW, NULL, 0, NULL, NULL);
1305                 pa_memblockq_seek(s->memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE);
1306             }
1307
1308             handle_seek(s, windex);
1309
1310 /*             pa_log("sink input post2: %lu", (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1311
1312             return 0;
1313         }
1314
1315         case SINK_INPUT_MESSAGE_DRAIN:
1316         case SINK_INPUT_MESSAGE_FLUSH:
1317         case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1318         case SINK_INPUT_MESSAGE_TRIGGER: {
1319
1320             int64_t windex;
1321             pa_sink_input *isync;
1322             void (*func)(pa_memblockq *bq);
1323
1324             switch  (code) {
1325                 case SINK_INPUT_MESSAGE_FLUSH:
1326                     func = pa_memblockq_flush_write;
1327                     break;
1328
1329                 case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1330                     func = pa_memblockq_prebuf_force;
1331                     break;
1332
1333                 case SINK_INPUT_MESSAGE_DRAIN:
1334                 case SINK_INPUT_MESSAGE_TRIGGER:
1335                     func = pa_memblockq_prebuf_disable;
1336                     break;
1337
1338                 default:
1339                     pa_assert_not_reached();
1340             }
1341
1342             windex = pa_memblockq_get_write_index(s->memblockq);
1343             func(s->memblockq);
1344             handle_seek(s, windex);
1345
1346             /* Do the same for all other members in the sync group */
1347             for (isync = i->sync_prev; isync; isync = isync->sync_prev) {
1348                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1349                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1350                 func(ssync->memblockq);
1351                 handle_seek(ssync, windex);
1352             }
1353
1354             for (isync = i->sync_next; isync; isync = isync->sync_next) {
1355                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1356                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1357                 func(ssync->memblockq);
1358                 handle_seek(ssync, windex);
1359             }
1360
1361             if (code == SINK_INPUT_MESSAGE_DRAIN) {
1362                 if (!pa_memblockq_is_readable(s->memblockq))
1363                     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_DRAIN_ACK, userdata, 0, NULL, NULL);
1364                 else {
1365                     s->drain_tag = PA_PTR_TO_UINT(userdata);
1366                     s->drain_request = TRUE;
1367                 }
1368             }
1369
1370             return 0;
1371         }
1372
1373         case SINK_INPUT_MESSAGE_UPDATE_LATENCY:
1374
1375             s->read_index = pa_memblockq_get_read_index(s->memblockq);
1376             s->write_index = pa_memblockq_get_write_index(s->memblockq);
1377             s->render_memblockq_length = pa_memblockq_get_length(s->sink_input->thread_info.render_memblockq);
1378             return 0;
1379
1380         case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1381             int64_t windex;
1382
1383             windex = pa_memblockq_get_write_index(s->memblockq);
1384
1385             pa_memblockq_prebuf_force(s->memblockq);
1386
1387             handle_seek(s, windex);
1388
1389             /* Fall through to the default handler */
1390             break;
1391         }
1392
1393         case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1394             pa_usec_t *r = userdata;
1395
1396             *r = pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &i->sample_spec);
1397
1398             /* Fall through, the default handler will add in the extra
1399              * latency added by the resampler */
1400             break;
1401         }
1402     }
1403
1404     return pa_sink_input_process_msg(o, code, userdata, offset, chunk);
1405 }
1406
1407 /* Called from thread context */
1408 static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
1409     playback_stream *s;
1410
1411     pa_sink_input_assert_ref(i);
1412     s = PLAYBACK_STREAM(i->userdata);
1413     playback_stream_assert_ref(s);
1414     pa_assert(chunk);
1415
1416 /*     pa_log("%s, pop(): %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1417
1418     if (pa_memblockq_is_readable(s->memblockq))
1419         s->is_underrun = FALSE;
1420     else {
1421 /*         pa_log("%s, UNDERRUN: %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1422
1423         if (s->drain_request && pa_sink_input_safe_to_remove(i)) {
1424             s->drain_request = FALSE;
1425             pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_DRAIN_ACK, PA_UINT_TO_PTR(s->drain_tag), 0, NULL, NULL);
1426         } else if (!s->is_underrun)
1427             pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, 0, NULL, NULL);
1428
1429         s->is_underrun = TRUE;
1430
1431         playback_stream_request_bytes(s);
1432     }
1433
1434     /* This call will not fail with prebuf=0, hence we check for
1435        underrun explicitly above */
1436     if (pa_memblockq_peek(s->memblockq, chunk) < 0)
1437         return -1;
1438
1439     chunk->length = PA_MIN(nbytes, chunk->length);
1440
1441     if (i->thread_info.underrun_for > 0)
1442         pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_STARTED, NULL, 0, NULL, NULL);
1443
1444     pa_memblockq_drop(s->memblockq, chunk->length);
1445     playback_stream_request_bytes(s);
1446
1447     return 0;
1448 }
1449
1450 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
1451     playback_stream *s;
1452
1453     pa_sink_input_assert_ref(i);
1454     s = PLAYBACK_STREAM(i->userdata);
1455     playback_stream_assert_ref(s);
1456
1457     /* If we are in an underrun, then we don't rewind */
1458     if (i->thread_info.underrun_for > 0)
1459         return;
1460
1461     pa_memblockq_rewind(s->memblockq, nbytes);
1462 }
1463
1464 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
1465     playback_stream *s;
1466
1467     pa_sink_input_assert_ref(i);
1468     s = PLAYBACK_STREAM(i->userdata);
1469     playback_stream_assert_ref(s);
1470
1471     pa_memblockq_set_maxrewind(s->memblockq, nbytes);
1472 }
1473
1474 static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) {
1475     playback_stream *s;
1476     size_t tlength;
1477
1478     pa_sink_input_assert_ref(i);
1479     s = PLAYBACK_STREAM(i->userdata);
1480     playback_stream_assert_ref(s);
1481
1482     tlength = nbytes+2*pa_memblockq_get_minreq(s->memblockq);
1483
1484     if (pa_memblockq_get_tlength(s->memblockq) < tlength)
1485         pa_memblockq_set_tlength(s->memblockq, tlength);
1486 }
1487
1488 /* Called from main context */
1489 static void sink_input_kill_cb(pa_sink_input *i) {
1490     playback_stream *s;
1491
1492     pa_sink_input_assert_ref(i);
1493     s = PLAYBACK_STREAM(i->userdata);
1494     playback_stream_assert_ref(s);
1495
1496     playback_stream_send_killed(s);
1497     playback_stream_unlink(s);
1498 }
1499
1500 /* Called from main context */
1501 static void sink_input_send_event_cb(pa_sink_input *i, const char *event, pa_proplist *pl) {
1502     playback_stream *s;
1503     pa_tagstruct *t;
1504
1505     pa_sink_input_assert_ref(i);
1506     s = PLAYBACK_STREAM(i->userdata);
1507     playback_stream_assert_ref(s);
1508
1509     if (s->connection->version < 15)
1510       return;
1511
1512     t = pa_tagstruct_new(NULL, 0);
1513     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_EVENT);
1514     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1515     pa_tagstruct_putu32(t, s->index);
1516     pa_tagstruct_puts(t, event);
1517     pa_tagstruct_put_proplist(t, pl);
1518     pa_pstream_send_tagstruct(s->connection->pstream, t);
1519 }
1520
1521 /* Called from main context */
1522 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend) {
1523     playback_stream *s;
1524     pa_tagstruct *t;
1525
1526     pa_sink_input_assert_ref(i);
1527     s = PLAYBACK_STREAM(i->userdata);
1528     playback_stream_assert_ref(s);
1529
1530     if (s->connection->version < 12)
1531       return;
1532
1533     t = pa_tagstruct_new(NULL, 0);
1534     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_SUSPENDED);
1535     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1536     pa_tagstruct_putu32(t, s->index);
1537     pa_tagstruct_put_boolean(t, suspend);
1538     pa_pstream_send_tagstruct(s->connection->pstream, t);
1539 }
1540
1541 /* Called from main context */
1542 static void sink_input_moved_cb(pa_sink_input *i) {
1543     playback_stream *s;
1544     pa_tagstruct *t;
1545     uint32_t maxlength, tlength, prebuf, minreq;
1546
1547     pa_sink_input_assert_ref(i);
1548     s = PLAYBACK_STREAM(i->userdata);
1549     playback_stream_assert_ref(s);
1550
1551     maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
1552     tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq);
1553     prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq);
1554     minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq);
1555
1556     fix_playback_buffer_attr_pre(s, TRUE, FALSE, &maxlength, &tlength, &prebuf, &minreq);
1557     pa_memblockq_set_maxlength(s->memblockq, maxlength);
1558     pa_memblockq_set_tlength(s->memblockq, tlength);
1559     pa_memblockq_set_prebuf(s->memblockq, prebuf);
1560     pa_memblockq_set_minreq(s->memblockq, minreq);
1561     fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
1562
1563     if (s->connection->version < 12)
1564       return;
1565
1566     t = pa_tagstruct_new(NULL, 0);
1567     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_MOVED);
1568     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1569     pa_tagstruct_putu32(t, s->index);
1570     pa_tagstruct_putu32(t, i->sink->index);
1571     pa_tagstruct_puts(t, i->sink->name);
1572     pa_tagstruct_put_boolean(t, pa_sink_get_state(i->sink) == PA_SINK_SUSPENDED);
1573
1574     if (s->connection->version >= 13) {
1575         pa_tagstruct_putu32(t, maxlength);
1576         pa_tagstruct_putu32(t, tlength);
1577         pa_tagstruct_putu32(t, prebuf);
1578         pa_tagstruct_putu32(t, minreq);
1579         pa_tagstruct_put_usec(t, s->sink_latency);
1580     }
1581
1582     pa_pstream_send_tagstruct(s->connection->pstream, t);
1583 }
1584
1585 /*** source_output callbacks ***/
1586
1587 /* Called from thread context */
1588 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
1589     record_stream *s;
1590
1591     pa_source_output_assert_ref(o);
1592     s = RECORD_STREAM(o->userdata);
1593     record_stream_assert_ref(s);
1594     pa_assert(chunk);
1595
1596     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), RECORD_STREAM_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
1597 }
1598
1599 static void source_output_kill_cb(pa_source_output *o) {
1600     record_stream *s;
1601
1602     pa_source_output_assert_ref(o);
1603     s = RECORD_STREAM(o->userdata);
1604     record_stream_assert_ref(s);
1605
1606     record_stream_send_killed(s);
1607     record_stream_unlink(s);
1608 }
1609
1610 static pa_usec_t source_output_get_latency_cb(pa_source_output *o) {
1611     record_stream *s;
1612
1613     pa_source_output_assert_ref(o);
1614     s = RECORD_STREAM(o->userdata);
1615     record_stream_assert_ref(s);
1616
1617     /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/
1618
1619     return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec);
1620 }
1621
1622 /* Called from main context */
1623 static void source_output_send_event_cb(pa_source_output *o, const char *event, pa_proplist *pl) {
1624     record_stream *s;
1625     pa_tagstruct *t;
1626
1627     pa_source_output_assert_ref(o);
1628     s = RECORD_STREAM(o->userdata);
1629     record_stream_assert_ref(s);
1630
1631     if (s->connection->version < 15)
1632       return;
1633
1634     t = pa_tagstruct_new(NULL, 0);
1635     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_EVENT);
1636     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1637     pa_tagstruct_putu32(t, s->index);
1638     pa_tagstruct_puts(t, event);
1639     pa_tagstruct_put_proplist(t, pl);
1640     pa_pstream_send_tagstruct(s->connection->pstream, t);
1641 }
1642
1643 /* Called from main context */
1644 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend) {
1645     record_stream *s;
1646     pa_tagstruct *t;
1647
1648     pa_source_output_assert_ref(o);
1649     s = RECORD_STREAM(o->userdata);
1650     record_stream_assert_ref(s);
1651
1652     if (s->connection->version < 12)
1653       return;
1654
1655     t = pa_tagstruct_new(NULL, 0);
1656     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_SUSPENDED);
1657     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1658     pa_tagstruct_putu32(t, s->index);
1659     pa_tagstruct_put_boolean(t, suspend);
1660     pa_pstream_send_tagstruct(s->connection->pstream, t);
1661 }
1662
1663 /* Called from main context */
1664 static void source_output_moved_cb(pa_source_output *o) {
1665     record_stream *s;
1666     pa_tagstruct *t;
1667     uint32_t maxlength, fragsize;
1668
1669     pa_source_output_assert_ref(o);
1670     s = RECORD_STREAM(o->userdata);
1671     record_stream_assert_ref(s);
1672
1673     fragsize = (uint32_t) s->fragment_size;
1674     maxlength = (uint32_t) pa_memblockq_get_length(s->memblockq);
1675
1676     fix_record_buffer_attr_pre(s, TRUE, FALSE, &maxlength, &fragsize);
1677     pa_memblockq_set_maxlength(s->memblockq, maxlength);
1678     fix_record_buffer_attr_post(s, &maxlength, &fragsize);
1679
1680     if (s->connection->version < 12)
1681       return;
1682
1683     t = pa_tagstruct_new(NULL, 0);
1684     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_MOVED);
1685     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1686     pa_tagstruct_putu32(t, s->index);
1687     pa_tagstruct_putu32(t, o->source->index);
1688     pa_tagstruct_puts(t, o->source->name);
1689     pa_tagstruct_put_boolean(t, pa_source_get_state(o->source) == PA_SOURCE_SUSPENDED);
1690
1691     if (s->connection->version >= 13) {
1692         pa_tagstruct_putu32(t, maxlength);
1693         pa_tagstruct_putu32(t, fragsize);
1694         pa_tagstruct_put_usec(t, s->source_latency);
1695     }
1696
1697     pa_pstream_send_tagstruct(s->connection->pstream, t);
1698 }
1699
1700 /*** pdispatch callbacks ***/
1701
1702 static void protocol_error(pa_native_connection *c) {
1703     pa_log("protocol error, kicking client");
1704     native_connection_unlink(c);
1705 }
1706
1707 #define CHECK_VALIDITY(pstream, expression, tag, error) do { \
1708 if (!(expression)) { \
1709     pa_pstream_send_error((pstream), (tag), (error)); \
1710     return; \
1711 } \
1712 } while(0);
1713
1714 static pa_tagstruct *reply_new(uint32_t tag) {
1715     pa_tagstruct *reply;
1716
1717     reply = pa_tagstruct_new(NULL, 0);
1718     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1719     pa_tagstruct_putu32(reply, tag);
1720     return reply;
1721 }
1722
1723 static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1724     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1725     playback_stream *s;
1726     uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid, missing;
1727     const char *name = NULL, *sink_name;
1728     pa_sample_spec ss;
1729     pa_channel_map map;
1730     pa_tagstruct *reply;
1731     pa_sink *sink = NULL;
1732     pa_cvolume volume;
1733     pa_bool_t
1734         corked = FALSE,
1735         no_remap = FALSE,
1736         no_remix = FALSE,
1737         fix_format = FALSE,
1738         fix_rate = FALSE,
1739         fix_channels = FALSE,
1740         no_move = FALSE,
1741         variable_rate = FALSE,
1742         muted = FALSE,
1743         adjust_latency = FALSE,
1744         early_requests = FALSE,
1745         dont_inhibit_auto_suspend = FALSE,
1746         muted_set = FALSE,
1747         fail_on_suspend = FALSE;
1748     pa_sink_input_flags_t flags = 0;
1749     pa_proplist *p;
1750     pa_bool_t volume_set = TRUE;
1751     int ret = PA_ERR_INVALID;
1752
1753     pa_native_connection_assert_ref(c);
1754     pa_assert(t);
1755
1756     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1757         pa_tagstruct_get(
1758                 t,
1759                 PA_TAG_SAMPLE_SPEC, &ss,
1760                 PA_TAG_CHANNEL_MAP, &map,
1761                 PA_TAG_U32, &sink_index,
1762                 PA_TAG_STRING, &sink_name,
1763                 PA_TAG_U32, &maxlength,
1764                 PA_TAG_BOOLEAN, &corked,
1765                 PA_TAG_U32, &tlength,
1766                 PA_TAG_U32, &prebuf,
1767                 PA_TAG_U32, &minreq,
1768                 PA_TAG_U32, &syncid,
1769                 PA_TAG_CVOLUME, &volume,
1770                 PA_TAG_INVALID) < 0) {
1771
1772         protocol_error(c);
1773         return;
1774     }
1775
1776     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1777     CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID);
1778     CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID);
1779     CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1780     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1781     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1782     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
1783     CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID);
1784
1785     p = pa_proplist_new();
1786
1787     if (name)
1788         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1789
1790     if (c->version >= 12)  {
1791         /* Since 0.9.8 the user can ask for a couple of additional flags */
1792
1793         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1794             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1795             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1796             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1797             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1798             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1799             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1800
1801             protocol_error(c);
1802             pa_proplist_free(p);
1803             return;
1804         }
1805     }
1806
1807     if (c->version >= 13) {
1808
1809         if (pa_tagstruct_get_boolean(t, &muted) < 0 ||
1810             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1811             pa_tagstruct_get_proplist(t, p) < 0) {
1812             protocol_error(c);
1813             pa_proplist_free(p);
1814             return;
1815         }
1816     }
1817
1818     if (c->version >= 14) {
1819
1820         if (pa_tagstruct_get_boolean(t, &volume_set) < 0 ||
1821             pa_tagstruct_get_boolean(t, &early_requests) < 0) {
1822             protocol_error(c);
1823             pa_proplist_free(p);
1824             return;
1825         }
1826     }
1827
1828     if (c->version >= 15) {
1829
1830         if (pa_tagstruct_get_boolean(t, &muted_set) < 0 ||
1831             pa_tagstruct_get_boolean(t, &dont_inhibit_auto_suspend) < 0 ||
1832             pa_tagstruct_get_boolean(t, &fail_on_suspend) < 0) {
1833             protocol_error(c);
1834             pa_proplist_free(p);
1835             return;
1836         }
1837     }
1838
1839     if (!pa_tagstruct_eof(t)) {
1840         protocol_error(c);
1841         pa_proplist_free(p);
1842         return;
1843     }
1844
1845     if (sink_index != PA_INVALID_INDEX) {
1846
1847         if (!(sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index))) {
1848             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1849             pa_proplist_free(p);
1850             return;
1851         }
1852
1853     } else if (sink_name) {
1854
1855         if (!(sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK))) {
1856             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1857             pa_proplist_free(p);
1858             return;
1859         }
1860     }
1861
1862     flags =
1863         (corked ?  PA_SINK_INPUT_START_CORKED : 0) |
1864         (no_remap ?  PA_SINK_INPUT_NO_REMAP : 0) |
1865         (no_remix ?  PA_SINK_INPUT_NO_REMIX : 0) |
1866         (fix_format ?  PA_SINK_INPUT_FIX_FORMAT : 0) |
1867         (fix_rate ?  PA_SINK_INPUT_FIX_RATE : 0) |
1868         (fix_channels ?  PA_SINK_INPUT_FIX_CHANNELS : 0) |
1869         (no_move ?  PA_SINK_INPUT_DONT_MOVE : 0) |
1870         (variable_rate ?  PA_SINK_INPUT_VARIABLE_RATE : 0) |
1871         (dont_inhibit_auto_suspend ? PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND : 0) |
1872         (fail_on_suspend ? PA_SINK_INPUT_FAIL_ON_SUSPEND : 0);
1873
1874     /* Only since protocol version 15 there's a seperate muted_set
1875      * flag. For older versions we synthesize it here */
1876     muted_set = muted_set || muted;
1877
1878     s = playback_stream_new(c, sink, &ss, &map, &maxlength, &tlength, &prebuf, &minreq, volume_set ? &volume : NULL, muted, muted_set, syncid, &missing, flags, p, adjust_latency, early_requests, &ret);
1879     pa_proplist_free(p);
1880
1881     CHECK_VALIDITY(c->pstream, s, tag, ret);
1882
1883     reply = reply_new(tag);
1884     pa_tagstruct_putu32(reply, s->index);
1885     pa_assert(s->sink_input);
1886     pa_tagstruct_putu32(reply, s->sink_input->index);
1887     pa_tagstruct_putu32(reply, missing);
1888
1889 /*     pa_log("initial request is %u", missing); */
1890
1891     if (c->version >= 9) {
1892         /* Since 0.9.0 we support sending the buffer metrics back to the client */
1893
1894         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1895         pa_tagstruct_putu32(reply, (uint32_t) tlength);
1896         pa_tagstruct_putu32(reply, (uint32_t) prebuf);
1897         pa_tagstruct_putu32(reply, (uint32_t) minreq);
1898     }
1899
1900     if (c->version >= 12) {
1901         /* Since 0.9.8 we support sending the chosen sample
1902          * spec/channel map/device/suspend status back to the
1903          * client */
1904
1905         pa_tagstruct_put_sample_spec(reply, &ss);
1906         pa_tagstruct_put_channel_map(reply, &map);
1907
1908         pa_tagstruct_putu32(reply, s->sink_input->sink->index);
1909         pa_tagstruct_puts(reply, s->sink_input->sink->name);
1910
1911         pa_tagstruct_put_boolean(reply, pa_sink_get_state(s->sink_input->sink) == PA_SINK_SUSPENDED);
1912     }
1913
1914     if (c->version >= 13)
1915         pa_tagstruct_put_usec(reply, s->sink_latency);
1916
1917     pa_pstream_send_tagstruct(c->pstream, reply);
1918 }
1919
1920 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1921     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1922     uint32_t channel;
1923
1924     pa_native_connection_assert_ref(c);
1925     pa_assert(t);
1926
1927     if (pa_tagstruct_getu32(t, &channel) < 0 ||
1928         !pa_tagstruct_eof(t)) {
1929         protocol_error(c);
1930         return;
1931     }
1932
1933     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1934
1935     switch (command) {
1936
1937         case PA_COMMAND_DELETE_PLAYBACK_STREAM: {
1938             playback_stream *s;
1939             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) {
1940                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1941                 return;
1942             }
1943
1944             playback_stream_unlink(s);
1945             break;
1946         }
1947
1948         case PA_COMMAND_DELETE_RECORD_STREAM: {
1949             record_stream *s;
1950             if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
1951                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1952                 return;
1953             }
1954
1955             record_stream_unlink(s);
1956             break;
1957         }
1958
1959         case PA_COMMAND_DELETE_UPLOAD_STREAM: {
1960             upload_stream *s;
1961
1962             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !upload_stream_isinstance(s)) {
1963                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1964                 return;
1965             }
1966
1967             upload_stream_unlink(s);
1968             break;
1969         }
1970
1971         default:
1972             pa_assert_not_reached();
1973     }
1974
1975     pa_pstream_send_simple_ack(c->pstream, tag);
1976 }
1977
1978 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1979     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1980     record_stream *s;
1981     uint32_t maxlength, fragment_size;
1982     uint32_t source_index;
1983     const char *name = NULL, *source_name;
1984     pa_sample_spec ss;
1985     pa_channel_map map;
1986     pa_tagstruct *reply;
1987     pa_source *source = NULL;
1988     pa_bool_t
1989         corked = FALSE,
1990         no_remap = FALSE,
1991         no_remix = FALSE,
1992         fix_format = FALSE,
1993         fix_rate = FALSE,
1994         fix_channels = FALSE,
1995         no_move = FALSE,
1996         variable_rate = FALSE,
1997         adjust_latency = FALSE,
1998         peak_detect = FALSE,
1999         early_requests = FALSE,
2000         dont_inhibit_auto_suspend = FALSE,
2001         fail_on_suspend = FALSE;
2002     pa_source_output_flags_t flags = 0;
2003     pa_proplist *p;
2004     uint32_t direct_on_input_idx = PA_INVALID_INDEX;
2005     pa_sink_input *direct_on_input = NULL;
2006     int ret = PA_ERR_INVALID;
2007
2008     pa_native_connection_assert_ref(c);
2009     pa_assert(t);
2010
2011     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
2012         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
2013         pa_tagstruct_get_channel_map(t, &map) < 0 ||
2014         pa_tagstruct_getu32(t, &source_index) < 0 ||
2015         pa_tagstruct_gets(t, &source_name) < 0 ||
2016         pa_tagstruct_getu32(t, &maxlength) < 0 ||
2017         pa_tagstruct_get_boolean(t, &corked) < 0 ||
2018         pa_tagstruct_getu32(t, &fragment_size) < 0) {
2019         protocol_error(c);
2020         return;
2021     }
2022
2023     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2024     CHECK_VALIDITY(c->pstream, !source_name || pa_namereg_is_valid_name(source_name), tag, PA_ERR_INVALID);
2025     CHECK_VALIDITY(c->pstream, source_index == PA_INVALID_INDEX || !source_name, tag, PA_ERR_INVALID);
2026     CHECK_VALIDITY(c->pstream, !source_name || source_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2027     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
2028     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
2029     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
2030
2031     p = pa_proplist_new();
2032
2033     if (name)
2034         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2035
2036     if (c->version >= 12)  {
2037         /* Since 0.9.8 the user can ask for a couple of additional flags */
2038
2039         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
2040             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
2041             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
2042             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
2043             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
2044             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
2045             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
2046
2047             protocol_error(c);
2048             pa_proplist_free(p);
2049             return;
2050         }
2051     }
2052
2053     if (c->version >= 13) {
2054
2055         if (pa_tagstruct_get_boolean(t, &peak_detect) < 0 ||
2056             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
2057             pa_tagstruct_get_proplist(t, p) < 0 ||
2058             pa_tagstruct_getu32(t, &direct_on_input_idx) < 0) {
2059             protocol_error(c);
2060             pa_proplist_free(p);
2061             return;
2062         }
2063     }
2064
2065     if (c->version >= 14) {
2066
2067         if (pa_tagstruct_get_boolean(t, &early_requests) < 0) {
2068             protocol_error(c);
2069             pa_proplist_free(p);
2070             return;
2071         }
2072     }
2073
2074     if (c->version >= 15) {
2075
2076         if (pa_tagstruct_get_boolean(t, &dont_inhibit_auto_suspend) < 0 ||
2077             pa_tagstruct_get_boolean(t, &fail_on_suspend) < 0) {
2078             protocol_error(c);
2079             pa_proplist_free(p);
2080             return;
2081         }
2082     }
2083
2084     if (!pa_tagstruct_eof(t)) {
2085         protocol_error(c);
2086         pa_proplist_free(p);
2087         return;
2088     }
2089
2090     if (source_index != PA_INVALID_INDEX) {
2091
2092         if (!(source = pa_idxset_get_by_index(c->protocol->core->sources, source_index))) {
2093             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2094             pa_proplist_free(p);
2095             return;
2096         }
2097
2098     } else if (source_name) {
2099
2100         if (!(source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE))) {
2101             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2102             pa_proplist_free(p);
2103             return;
2104         }
2105     }
2106
2107     if (direct_on_input_idx != PA_INVALID_INDEX) {
2108
2109         if (!(direct_on_input = pa_idxset_get_by_index(c->protocol->core->sink_inputs, direct_on_input_idx))) {
2110             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2111             pa_proplist_free(p);
2112             return;
2113         }
2114     }
2115
2116     flags =
2117         (corked ?  PA_SOURCE_OUTPUT_START_CORKED : 0) |
2118         (no_remap ?  PA_SOURCE_OUTPUT_NO_REMAP : 0) |
2119         (no_remix ?  PA_SOURCE_OUTPUT_NO_REMIX : 0) |
2120         (fix_format ?  PA_SOURCE_OUTPUT_FIX_FORMAT : 0) |
2121         (fix_rate ?  PA_SOURCE_OUTPUT_FIX_RATE : 0) |
2122         (fix_channels ?  PA_SOURCE_OUTPUT_FIX_CHANNELS : 0) |
2123         (no_move ?  PA_SOURCE_OUTPUT_DONT_MOVE : 0) |
2124         (variable_rate ?  PA_SOURCE_OUTPUT_VARIABLE_RATE : 0) |
2125         (dont_inhibit_auto_suspend ? PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND : 0) |
2126         (fail_on_suspend ? PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND : 0);
2127
2128     s = record_stream_new(c, source, &ss, &map, peak_detect, &maxlength, &fragment_size, flags, p, adjust_latency, direct_on_input, early_requests, &ret);
2129     pa_proplist_free(p);
2130
2131     CHECK_VALIDITY(c->pstream, s, tag, ret);
2132
2133     reply = reply_new(tag);
2134     pa_tagstruct_putu32(reply, s->index);
2135     pa_assert(s->source_output);
2136     pa_tagstruct_putu32(reply, s->source_output->index);
2137
2138     if (c->version >= 9) {
2139         /* Since 0.9 we support sending the buffer metrics back to the client */
2140
2141         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
2142         pa_tagstruct_putu32(reply, (uint32_t) fragment_size);
2143     }
2144
2145     if (c->version >= 12) {
2146         /* Since 0.9.8 we support sending the chosen sample
2147          * spec/channel map/device/suspend status back to the
2148          * client */
2149
2150         pa_tagstruct_put_sample_spec(reply, &ss);
2151         pa_tagstruct_put_channel_map(reply, &map);
2152
2153         pa_tagstruct_putu32(reply, s->source_output->source->index);
2154         pa_tagstruct_puts(reply, s->source_output->source->name);
2155
2156         pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_SUSPENDED);
2157     }
2158
2159     if (c->version >= 13)
2160         pa_tagstruct_put_usec(reply, s->source_latency);
2161
2162     pa_pstream_send_tagstruct(c->pstream, reply);
2163 }
2164
2165 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2166     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2167     int ret;
2168
2169     pa_native_connection_assert_ref(c);
2170     pa_assert(t);
2171
2172     if (!pa_tagstruct_eof(t)) {
2173         protocol_error(c);
2174         return;
2175     }
2176
2177     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2178     ret = pa_core_exit(c->protocol->core, FALSE, 0);
2179     CHECK_VALIDITY(c->pstream, ret >= 0, tag, PA_ERR_ACCESS);
2180
2181     pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
2182 }
2183
2184 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2185     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2186     const void*cookie;
2187     pa_tagstruct *reply;
2188     pa_bool_t shm_on_remote = FALSE, do_shm;
2189
2190     pa_native_connection_assert_ref(c);
2191     pa_assert(t);
2192
2193     if (pa_tagstruct_getu32(t, &c->version) < 0 ||
2194         pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
2195         !pa_tagstruct_eof(t)) {
2196         protocol_error(c);
2197         return;
2198     }
2199
2200     /* Minimum supported version */
2201     if (c->version < 8) {
2202         pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION);
2203         return;
2204     }
2205
2206     /* Starting with protocol version 13 the MSB of the version tag
2207        reflects if shm is available for this pa_native_connection or
2208        not. */
2209     if (c->version >= 13) {
2210         shm_on_remote = !!(c->version & 0x80000000U);
2211         c->version &= 0x7FFFFFFFU;
2212     }
2213
2214     pa_log_debug("Protocol version: remote %u, local %u", c->version, PA_PROTOCOL_VERSION);
2215
2216     pa_proplist_setf(c->client->proplist, "native-protocol.version", "%u", c->version);
2217
2218     if (!c->authorized) {
2219         pa_bool_t success = FALSE;
2220
2221 #ifdef HAVE_CREDS
2222         const pa_creds *creds;
2223
2224         if ((creds = pa_pdispatch_creds(pd))) {
2225             if (creds->uid == getuid())
2226                 success = TRUE;
2227             else if (c->options->auth_group) {
2228                 int r;
2229                 gid_t gid;
2230
2231                 if ((gid = pa_get_gid_of_group(c->options->auth_group)) == (gid_t) -1)
2232                     pa_log_warn("Failed to get GID of group '%s'", c->options->auth_group);
2233                 else if (gid == creds->gid)
2234                     success = TRUE;
2235
2236                 if (!success) {
2237                     if ((r = pa_uid_in_group(creds->uid, c->options->auth_group)) < 0)
2238                         pa_log_warn("Failed to check group membership.");
2239                     else if (r > 0)
2240                         success = TRUE;
2241                 }
2242             }
2243
2244             pa_log_info("Got credentials: uid=%lu gid=%lu success=%i",
2245                         (unsigned long) creds->uid,
2246                         (unsigned long) creds->gid,
2247                         (int) success);
2248         }
2249 #endif
2250
2251         if (!success && c->options->auth_cookie) {
2252             const uint8_t *ac;
2253
2254             if ((ac = pa_auth_cookie_read(c->options->auth_cookie, PA_NATIVE_COOKIE_LENGTH)))
2255                 if (memcmp(ac, cookie, PA_NATIVE_COOKIE_LENGTH) == 0)
2256                     success = TRUE;
2257         }
2258
2259         if (!success) {
2260             pa_log_warn("Denied access to client with invalid authorization data.");
2261             pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS);
2262             return;
2263         }
2264
2265         c->authorized = TRUE;
2266         if (c->auth_timeout_event) {
2267             c->protocol->core->mainloop->time_free(c->auth_timeout_event);
2268             c->auth_timeout_event = NULL;
2269         }
2270     }
2271
2272     /* Enable shared memory support if possible */
2273     do_shm =
2274         pa_mempool_is_shared(c->protocol->core->mempool) &&
2275         c->is_local;
2276
2277     pa_log_debug("SHM possible: %s", pa_yes_no(do_shm));
2278
2279     if (do_shm)
2280         if (c->version < 10 || (c->version >= 13 && !shm_on_remote))
2281             do_shm = FALSE;
2282
2283 #ifdef HAVE_CREDS
2284     if (do_shm) {
2285         /* Only enable SHM if both sides are owned by the same
2286          * user. This is a security measure because otherwise data
2287          * private to the user might leak. */
2288
2289         const pa_creds *creds;
2290         if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid)
2291             do_shm = FALSE;
2292     }
2293 #endif
2294
2295     pa_log_debug("Negotiated SHM: %s", pa_yes_no(do_shm));
2296     pa_pstream_enable_shm(c->pstream, do_shm);
2297
2298     reply = reply_new(tag);
2299     pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION | (do_shm ? 0x80000000 : 0));
2300
2301 #ifdef HAVE_CREDS
2302 {
2303     /* SHM support is only enabled after both sides made sure they are the same user. */
2304
2305     pa_creds ucred;
2306
2307     ucred.uid = getuid();
2308     ucred.gid = getgid();
2309
2310     pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred);
2311 }
2312 #else
2313     pa_pstream_send_tagstruct(c->pstream, reply);
2314 #endif
2315 }
2316
2317 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2318     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2319     const char *name = NULL;
2320     pa_proplist *p;
2321     pa_tagstruct *reply;
2322
2323     pa_native_connection_assert_ref(c);
2324     pa_assert(t);
2325
2326     p = pa_proplist_new();
2327
2328     if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) ||
2329         (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2330         !pa_tagstruct_eof(t)) {
2331
2332         protocol_error(c);
2333         pa_proplist_free(p);
2334         return;
2335     }
2336
2337     if (name)
2338         if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) {
2339             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
2340             pa_proplist_free(p);
2341             return;
2342         }
2343
2344     pa_client_update_proplist(c->client, PA_UPDATE_REPLACE, p);
2345     pa_proplist_free(p);
2346
2347     reply = reply_new(tag);
2348
2349     if (c->version >= 13)
2350         pa_tagstruct_putu32(reply, c->client->index);
2351
2352     pa_pstream_send_tagstruct(c->pstream, reply);
2353 }
2354
2355 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2356     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2357     const char *name;
2358     uint32_t idx = PA_IDXSET_INVALID;
2359
2360     pa_native_connection_assert_ref(c);
2361     pa_assert(t);
2362
2363     if (pa_tagstruct_gets(t, &name) < 0 ||
2364         !pa_tagstruct_eof(t)) {
2365         protocol_error(c);
2366         return;
2367     }
2368
2369     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2370     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2371
2372     if (command == PA_COMMAND_LOOKUP_SINK) {
2373         pa_sink *sink;
2374         if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK)))
2375             idx = sink->index;
2376     } else {
2377         pa_source *source;
2378         pa_assert(command == PA_COMMAND_LOOKUP_SOURCE);
2379         if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE)))
2380             idx = source->index;
2381     }
2382
2383     if (idx == PA_IDXSET_INVALID)
2384         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2385     else {
2386         pa_tagstruct *reply;
2387         reply = reply_new(tag);
2388         pa_tagstruct_putu32(reply, idx);
2389         pa_pstream_send_tagstruct(c->pstream, reply);
2390     }
2391 }
2392
2393 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2394     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2395     uint32_t idx;
2396     playback_stream *s;
2397
2398     pa_native_connection_assert_ref(c);
2399     pa_assert(t);
2400
2401     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2402         !pa_tagstruct_eof(t)) {
2403         protocol_error(c);
2404         return;
2405     }
2406
2407     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2408     s = pa_idxset_get_by_index(c->output_streams, idx);
2409     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2410     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2411
2412     pa_asyncmsgq_post(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_DRAIN, PA_UINT_TO_PTR(tag), 0, NULL, NULL);
2413 }
2414
2415 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2416     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2417     pa_tagstruct *reply;
2418     const pa_mempool_stat *stat;
2419
2420     pa_native_connection_assert_ref(c);
2421     pa_assert(t);
2422
2423     if (!pa_tagstruct_eof(t)) {
2424         protocol_error(c);
2425         return;
2426     }
2427
2428     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2429
2430     stat = pa_mempool_get_stat(c->protocol->core->mempool);
2431
2432     reply = reply_new(tag);
2433     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated));
2434     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size));
2435     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated));
2436     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size));
2437     pa_tagstruct_putu32(reply, (uint32_t) pa_scache_total_size(c->protocol->core));
2438     pa_pstream_send_tagstruct(c->pstream, reply);
2439 }
2440
2441 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2442     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2443     pa_tagstruct *reply;
2444     playback_stream *s;
2445     struct timeval tv, now;
2446     uint32_t idx;
2447     pa_usec_t latency;
2448
2449     pa_native_connection_assert_ref(c);
2450     pa_assert(t);
2451
2452     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2453         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2454         !pa_tagstruct_eof(t)) {
2455         protocol_error(c);
2456         return;
2457     }
2458
2459     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2460     s = pa_idxset_get_by_index(c->output_streams, idx);
2461     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2462     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2463     CHECK_VALIDITY(c->pstream, pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_UPDATE_LATENCY, s, 0, NULL) == 0, tag, PA_ERR_NOENTITY)
2464
2465     reply = reply_new(tag);
2466
2467     latency = pa_sink_get_latency(s->sink_input->sink);
2468     latency += pa_bytes_to_usec(s->render_memblockq_length, &s->sink_input->sample_spec);
2469
2470     pa_tagstruct_put_usec(reply, latency);
2471
2472     pa_tagstruct_put_usec(reply, 0);
2473     pa_tagstruct_put_boolean(reply, s->sink_input->thread_info.playing_for > 0);
2474     pa_tagstruct_put_timeval(reply, &tv);
2475     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2476     pa_tagstruct_puts64(reply, s->write_index);
2477     pa_tagstruct_puts64(reply, s->read_index);
2478
2479     if (c->version >= 13) {
2480         pa_tagstruct_putu64(reply, s->sink_input->thread_info.underrun_for);
2481         pa_tagstruct_putu64(reply, s->sink_input->thread_info.playing_for);
2482     }
2483
2484     pa_pstream_send_tagstruct(c->pstream, reply);
2485 }
2486
2487 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2488     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2489     pa_tagstruct *reply;
2490     record_stream *s;
2491     struct timeval tv, now;
2492     uint32_t idx;
2493
2494     pa_native_connection_assert_ref(c);
2495     pa_assert(t);
2496
2497     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2498         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2499         !pa_tagstruct_eof(t)) {
2500         protocol_error(c);
2501         return;
2502     }
2503
2504     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2505     s = pa_idxset_get_by_index(c->record_streams, idx);
2506     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2507
2508     reply = reply_new(tag);
2509     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
2510     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
2511     pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_RUNNING);
2512     pa_tagstruct_put_timeval(reply, &tv);
2513     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2514     pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
2515     pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
2516     pa_pstream_send_tagstruct(c->pstream, reply);
2517 }
2518
2519 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2520     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2521     upload_stream *s;
2522     uint32_t length;
2523     const char *name = NULL;
2524     pa_sample_spec ss;
2525     pa_channel_map map;
2526     pa_tagstruct *reply;
2527     pa_proplist *p;
2528
2529     pa_native_connection_assert_ref(c);
2530     pa_assert(t);
2531
2532     if (pa_tagstruct_gets(t, &name) < 0 ||
2533         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
2534         pa_tagstruct_get_channel_map(t, &map) < 0 ||
2535         pa_tagstruct_getu32(t, &length) < 0) {
2536         protocol_error(c);
2537         return;
2538     }
2539
2540     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2541     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
2542     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
2543     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
2544     CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID);
2545     CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE);
2546
2547     p = pa_proplist_new();
2548
2549     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2550         !pa_tagstruct_eof(t)) {
2551
2552         protocol_error(c);
2553         pa_proplist_free(p);
2554         return;
2555     }
2556
2557     if (c->version < 13)
2558         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2559     else if (!name)
2560         if (!(name = pa_proplist_gets(p, PA_PROP_EVENT_ID)))
2561             name = pa_proplist_gets(p, PA_PROP_MEDIA_NAME);
2562
2563     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2564
2565     s = upload_stream_new(c, &ss, &map, name, length, p);
2566     pa_proplist_free(p);
2567
2568     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
2569
2570     reply = reply_new(tag);
2571     pa_tagstruct_putu32(reply, s->index);
2572     pa_tagstruct_putu32(reply, length);
2573     pa_pstream_send_tagstruct(c->pstream, reply);
2574 }
2575
2576 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2577     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2578     uint32_t channel;
2579     upload_stream *s;
2580     uint32_t idx;
2581
2582     pa_native_connection_assert_ref(c);
2583     pa_assert(t);
2584
2585     if (pa_tagstruct_getu32(t, &channel) < 0 ||
2586         !pa_tagstruct_eof(t)) {
2587         protocol_error(c);
2588         return;
2589     }
2590
2591     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2592
2593     s = pa_idxset_get_by_index(c->output_streams, channel);
2594     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2595     CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2596
2597     if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, s->proplist, &idx) < 0)
2598         pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL);
2599     else
2600         pa_pstream_send_simple_ack(c->pstream, tag);
2601
2602     upload_stream_unlink(s);
2603 }
2604
2605 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2606     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2607     uint32_t sink_index;
2608     pa_volume_t volume;
2609     pa_sink *sink;
2610     const char *name, *sink_name;
2611     uint32_t idx;
2612     pa_proplist *p;
2613     pa_tagstruct *reply;
2614
2615     pa_native_connection_assert_ref(c);
2616     pa_assert(t);
2617
2618     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2619
2620     if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
2621         pa_tagstruct_gets(t, &sink_name) < 0 ||
2622         pa_tagstruct_getu32(t, &volume) < 0 ||
2623         pa_tagstruct_gets(t, &name) < 0) {
2624         protocol_error(c);
2625         return;
2626     }
2627
2628     CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID);
2629     CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID);
2630     CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2631     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2632
2633     if (sink_index != PA_INVALID_INDEX)
2634         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
2635     else
2636         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK);
2637
2638     CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
2639
2640     p = pa_proplist_new();
2641
2642     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2643         !pa_tagstruct_eof(t)) {
2644         protocol_error(c);
2645         pa_proplist_free(p);
2646         return;
2647     }
2648
2649     pa_proplist_update(p, PA_UPDATE_MERGE, c->client->proplist);
2650
2651     if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) {
2652         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2653         pa_proplist_free(p);
2654         return;
2655     }
2656
2657     pa_proplist_free(p);
2658
2659     reply = reply_new(tag);
2660
2661     if (c->version >= 13)
2662         pa_tagstruct_putu32(reply, idx);
2663
2664     pa_pstream_send_tagstruct(c->pstream, reply);
2665 }
2666
2667 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2668     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2669     const char *name;
2670
2671     pa_native_connection_assert_ref(c);
2672     pa_assert(t);
2673
2674     if (pa_tagstruct_gets(t, &name) < 0 ||
2675         !pa_tagstruct_eof(t)) {
2676         protocol_error(c);
2677         return;
2678     }
2679
2680     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2681     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2682
2683     if (pa_scache_remove_item(c->protocol->core, name) < 0) {
2684         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2685         return;
2686     }
2687
2688     pa_pstream_send_simple_ack(c->pstream, tag);
2689 }
2690
2691 static void fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) {
2692     pa_assert(c);
2693     pa_assert(fixed);
2694     pa_assert(original);
2695
2696     *fixed = *original;
2697
2698     if (c->version < 12) {
2699         /* Before protocol version 12 we didn't support S32 samples,
2700          * so we need to lie about this to the client */
2701
2702         if (fixed->format == PA_SAMPLE_S32LE)
2703             fixed->format = PA_SAMPLE_FLOAT32LE;
2704         if (fixed->format == PA_SAMPLE_S32BE)
2705             fixed->format = PA_SAMPLE_FLOAT32BE;
2706     }
2707
2708     if (c->version < 15) {
2709         if (fixed->format == PA_SAMPLE_S24LE || fixed->format == PA_SAMPLE_S24_32LE)
2710             fixed->format = PA_SAMPLE_FLOAT32LE;
2711         if (fixed->format == PA_SAMPLE_S24BE || fixed->format == PA_SAMPLE_S24_32BE)
2712             fixed->format = PA_SAMPLE_FLOAT32BE;
2713     }
2714 }
2715
2716 static void sink_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink *sink) {
2717     pa_sample_spec fixed_ss;
2718
2719     pa_assert(t);
2720     pa_sink_assert_ref(sink);
2721
2722     fixup_sample_spec(c, &fixed_ss, &sink->sample_spec);
2723
2724     pa_tagstruct_put(
2725         t,
2726         PA_TAG_U32, sink->index,
2727         PA_TAG_STRING, sink->name,
2728         PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2729         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2730         PA_TAG_CHANNEL_MAP, &sink->channel_map,
2731         PA_TAG_U32, sink->module ? sink->module->index : PA_INVALID_INDEX,
2732         PA_TAG_CVOLUME, pa_sink_get_volume(sink, FALSE),
2733         PA_TAG_BOOLEAN, pa_sink_get_mute(sink, FALSE),
2734         PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX,
2735         PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL,
2736         PA_TAG_USEC, pa_sink_get_latency(sink),
2737         PA_TAG_STRING, sink->driver,
2738         PA_TAG_U32, sink->flags,
2739         PA_TAG_INVALID);
2740
2741     if (c->version >= 13) {
2742         pa_tagstruct_put_proplist(t, sink->proplist);
2743         pa_tagstruct_put_usec(t, pa_sink_get_requested_latency(sink));
2744     }
2745
2746     if (c->version >= 15) {
2747         pa_tagstruct_put_volume(t, sink->base_volume);
2748         if (PA_UNLIKELY(pa_sink_get_state(sink) == PA_SINK_INVALID_STATE))
2749             pa_log_error("Internal sink state is invalid.");
2750         pa_tagstruct_putu32(t, pa_sink_get_state(sink));
2751         pa_tagstruct_putu32(t, sink->n_volume_steps);
2752         pa_tagstruct_putu32(t, sink->card ? sink->card->index : PA_INVALID_INDEX);
2753     }
2754 }
2755
2756 static void source_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source *source) {
2757     pa_sample_spec fixed_ss;
2758
2759     pa_assert(t);
2760     pa_source_assert_ref(source);
2761
2762     fixup_sample_spec(c, &fixed_ss, &source->sample_spec);
2763
2764     pa_tagstruct_put(
2765         t,
2766         PA_TAG_U32, source->index,
2767         PA_TAG_STRING, source->name,
2768         PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2769         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2770         PA_TAG_CHANNEL_MAP, &source->channel_map,
2771         PA_TAG_U32, source->module ? source->module->index : PA_INVALID_INDEX,
2772         PA_TAG_CVOLUME, pa_source_get_volume(source, FALSE),
2773         PA_TAG_BOOLEAN, pa_source_get_mute(source, FALSE),
2774         PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX,
2775         PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
2776         PA_TAG_USEC, pa_source_get_latency(source),
2777         PA_TAG_STRING, source->driver,
2778         PA_TAG_U32, source->flags,
2779         PA_TAG_INVALID);
2780
2781     if (c->version >= 13) {
2782         pa_tagstruct_put_proplist(t, source->proplist);
2783         pa_tagstruct_put_usec(t, pa_source_get_requested_latency(source));
2784     }
2785
2786     if (c->version >= 15) {
2787         pa_tagstruct_put_volume(t, source->base_volume);
2788         if (PA_UNLIKELY(pa_source_get_state(source) == PA_SOURCE_INVALID_STATE))
2789             pa_log_error("Internal source state is invalid.");
2790         pa_tagstruct_putu32(t, pa_source_get_state(source));
2791         pa_tagstruct_putu32(t, source->n_volume_steps);
2792         pa_tagstruct_putu32(t, source->card ? source->card->index : PA_INVALID_INDEX);
2793     }
2794 }
2795
2796 static void client_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_client *client) {
2797     pa_assert(t);
2798     pa_assert(client);
2799
2800     pa_tagstruct_putu32(t, client->index);
2801     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME)));
2802     pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX);
2803     pa_tagstruct_puts(t, client->driver);
2804
2805     if (c->version >= 13)
2806         pa_tagstruct_put_proplist(t, client->proplist);
2807 }
2808
2809 static void card_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_card *card) {
2810     void *state = NULL;
2811     pa_card_profile *p;
2812
2813     pa_assert(t);
2814     pa_assert(card);
2815
2816     pa_tagstruct_putu32(t, card->index);
2817     pa_tagstruct_puts(t, card->name);
2818     pa_tagstruct_putu32(t, card->module ? card->module->index : PA_INVALID_INDEX);
2819     pa_tagstruct_puts(t, card->driver);
2820
2821     pa_tagstruct_putu32(t, card->profiles ? pa_hashmap_size(card->profiles) : 0);
2822
2823     if (card->profiles) {
2824         while ((p = pa_hashmap_iterate(card->profiles, &state, NULL))) {
2825             pa_tagstruct_puts(t, p->name);
2826             pa_tagstruct_puts(t, p->description);
2827             pa_tagstruct_putu32(t, p->n_sinks);
2828             pa_tagstruct_putu32(t, p->n_sources);
2829         }
2830     }
2831
2832     pa_tagstruct_puts(t, card->active_profile ? card->active_profile->name : NULL);
2833     pa_tagstruct_put_proplist(t, card->proplist);
2834 }
2835
2836 static void module_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_module *module) {
2837     pa_assert(t);
2838     pa_assert(module);
2839
2840     pa_tagstruct_putu32(t, module->index);
2841     pa_tagstruct_puts(t, module->name);
2842     pa_tagstruct_puts(t, module->argument);
2843     pa_tagstruct_putu32(t, (uint32_t) pa_module_get_n_used(module));
2844
2845     if (c->version < 15)
2846         pa_tagstruct_put_boolean(t, FALSE); /* autoload is obsolete */
2847
2848     if (c->version >= 15)
2849         pa_tagstruct_put_proplist(t, module->proplist);
2850 }
2851
2852 static void sink_input_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink_input *s) {
2853     pa_sample_spec fixed_ss;
2854     pa_usec_t sink_latency;
2855
2856     pa_assert(t);
2857     pa_sink_input_assert_ref(s);
2858
2859     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2860
2861     pa_tagstruct_putu32(t, s->index);
2862     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2863     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2864     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2865     pa_tagstruct_putu32(t, s->sink->index);
2866     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2867     pa_tagstruct_put_channel_map(t, &s->channel_map);
2868     pa_tagstruct_put_cvolume(t, pa_sink_input_get_volume(s));
2869     pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s, &sink_latency));
2870     pa_tagstruct_put_usec(t, sink_latency);
2871     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s)));
2872     pa_tagstruct_puts(t, s->driver);
2873     if (c->version >= 11)
2874         pa_tagstruct_put_boolean(t, pa_sink_input_get_mute(s));
2875     if (c->version >= 13)
2876         pa_tagstruct_put_proplist(t, s->proplist);
2877 }
2878
2879 static void source_output_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source_output *s) {
2880     pa_sample_spec fixed_ss;
2881     pa_usec_t source_latency;
2882
2883     pa_assert(t);
2884     pa_source_output_assert_ref(s);
2885
2886     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2887
2888     pa_tagstruct_putu32(t, s->index);
2889     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2890     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2891     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2892     pa_tagstruct_putu32(t, s->source->index);
2893     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2894     pa_tagstruct_put_channel_map(t, &s->channel_map);
2895     pa_tagstruct_put_usec(t, pa_source_output_get_latency(s, &source_latency));
2896     pa_tagstruct_put_usec(t, source_latency);
2897     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s)));
2898     pa_tagstruct_puts(t, s->driver);
2899
2900     if (c->version >= 13)
2901         pa_tagstruct_put_proplist(t, s->proplist);
2902 }
2903
2904 static void scache_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_scache_entry *e) {
2905     pa_sample_spec fixed_ss;
2906     pa_cvolume v;
2907
2908     pa_assert(t);
2909     pa_assert(e);
2910
2911     if (e->memchunk.memblock)
2912         fixup_sample_spec(c, &fixed_ss, &e->sample_spec);
2913     else
2914         memset(&fixed_ss, 0, sizeof(fixed_ss));
2915
2916     pa_tagstruct_putu32(t, e->index);
2917     pa_tagstruct_puts(t, e->name);
2918
2919     if (e->volume_is_set)
2920         v = e->volume;
2921     else
2922         pa_cvolume_init(&v);
2923
2924     pa_tagstruct_put_cvolume(t, &v);
2925     pa_tagstruct_put_usec(t, e->memchunk.memblock ? pa_bytes_to_usec(e->memchunk.length, &e->sample_spec) : 0);
2926     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2927     pa_tagstruct_put_channel_map(t, &e->channel_map);
2928     pa_tagstruct_putu32(t, (uint32_t) e->memchunk.length);
2929     pa_tagstruct_put_boolean(t, e->lazy);
2930     pa_tagstruct_puts(t, e->filename);
2931
2932     if (c->version >= 13)
2933         pa_tagstruct_put_proplist(t, e->proplist);
2934 }
2935
2936 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2937     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2938     uint32_t idx;
2939     pa_sink *sink = NULL;
2940     pa_source *source = NULL;
2941     pa_client *client = NULL;
2942     pa_card *card = NULL;
2943     pa_module *module = NULL;
2944     pa_sink_input *si = NULL;
2945     pa_source_output *so = NULL;
2946     pa_scache_entry *sce = NULL;
2947     const char *name = NULL;
2948     pa_tagstruct *reply;
2949
2950     pa_native_connection_assert_ref(c);
2951     pa_assert(t);
2952
2953     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2954         (command != PA_COMMAND_GET_CLIENT_INFO &&
2955          command != PA_COMMAND_GET_CARD_INFO &&
2956          command != PA_COMMAND_GET_MODULE_INFO &&
2957          command != PA_COMMAND_GET_SINK_INPUT_INFO &&
2958          command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
2959          pa_tagstruct_gets(t, &name) < 0) ||
2960         !pa_tagstruct_eof(t)) {
2961         protocol_error(c);
2962         return;
2963     }
2964
2965     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2966     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2967     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
2968     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
2969     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2970
2971     if (command == PA_COMMAND_GET_SINK_INFO) {
2972         if (idx != PA_INVALID_INDEX)
2973             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2974         else
2975             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
2976     } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
2977         if (idx != PA_INVALID_INDEX)
2978             source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2979         else
2980             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
2981     } else if (command == PA_COMMAND_GET_CARD_INFO) {
2982         if (idx != PA_INVALID_INDEX)
2983             card = pa_idxset_get_by_index(c->protocol->core->cards, idx);
2984         else
2985             card = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_CARD);
2986     } else if (command == PA_COMMAND_GET_CLIENT_INFO)
2987         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
2988     else if (command == PA_COMMAND_GET_MODULE_INFO)
2989         module = pa_idxset_get_by_index(c->protocol->core->modules, idx);
2990     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
2991         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2992     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
2993         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
2994     else {
2995         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO);
2996         if (idx != PA_INVALID_INDEX)
2997             sce = pa_idxset_get_by_index(c->protocol->core->scache, idx);
2998         else
2999             sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE);
3000     }
3001
3002     if (!sink && !source && !client && !card && !module && !si && !so && !sce) {
3003         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
3004         return;
3005     }
3006
3007     reply = reply_new(tag);
3008     if (sink)
3009         sink_fill_tagstruct(c, reply, sink);
3010     else if (source)
3011         source_fill_tagstruct(c, reply, source);
3012     else if (client)
3013         client_fill_tagstruct(c, reply, client);
3014     else if (card)
3015         card_fill_tagstruct(c, reply, card);
3016     else if (module)
3017         module_fill_tagstruct(c, reply, module);
3018     else if (si)
3019         sink_input_fill_tagstruct(c, reply, si);
3020     else if (so)
3021         source_output_fill_tagstruct(c, reply, so);
3022     else
3023         scache_fill_tagstruct(c, reply, sce);
3024     pa_pstream_send_tagstruct(c->pstream, reply);
3025 }
3026
3027 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3028     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3029     pa_idxset *i;
3030     uint32_t idx;
3031     void *p;
3032     pa_tagstruct *reply;
3033
3034     pa_native_connection_assert_ref(c);
3035     pa_assert(t);
3036
3037     if (!pa_tagstruct_eof(t)) {
3038         protocol_error(c);
3039         return;
3040     }
3041
3042     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3043
3044     reply = reply_new(tag);
3045
3046     if (command == PA_COMMAND_GET_SINK_INFO_LIST)
3047         i = c->protocol->core->sinks;
3048     else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
3049         i = c->protocol->core->sources;
3050     else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
3051         i = c->protocol->core->clients;
3052     else if (command == PA_COMMAND_GET_CARD_INFO_LIST)
3053         i = c->protocol->core->cards;
3054     else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
3055         i = c->protocol->core->modules;
3056     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
3057         i = c->protocol->core->sink_inputs;
3058     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
3059         i = c->protocol->core->source_outputs;
3060     else {
3061         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
3062         i = c->protocol->core->scache;
3063     }
3064
3065     if (i) {
3066         for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) {
3067             if (command == PA_COMMAND_GET_SINK_INFO_LIST)
3068                 sink_fill_tagstruct(c, reply, p);
3069             else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
3070                 source_fill_tagstruct(c, reply, p);
3071             else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
3072                 client_fill_tagstruct(c, reply, p);
3073             else if (command == PA_COMMAND_GET_CARD_INFO_LIST)
3074                 card_fill_tagstruct(c, reply, p);
3075             else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
3076                 module_fill_tagstruct(c, reply, p);
3077             else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
3078                 sink_input_fill_tagstruct(c, reply, p);
3079             else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
3080                 source_output_fill_tagstruct(c, reply, p);
3081             else {
3082                 pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
3083                 scache_fill_tagstruct(c, reply, p);
3084             }
3085         }
3086     }
3087
3088     pa_pstream_send_tagstruct(c->pstream, reply);
3089 }
3090
3091 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3092     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3093     pa_tagstruct *reply;
3094     char txt[256];
3095     pa_sink *def_sink;
3096     pa_source *def_source;
3097     pa_sample_spec fixed_ss;
3098
3099     pa_native_connection_assert_ref(c);
3100     pa_assert(t);
3101
3102     if (!pa_tagstruct_eof(t)) {
3103         protocol_error(c);
3104         return;
3105     }
3106
3107     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3108
3109     reply = reply_new(tag);
3110     pa_tagstruct_puts(reply, PACKAGE_NAME);
3111     pa_tagstruct_puts(reply, PACKAGE_VERSION);
3112     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
3113     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
3114
3115     fixup_sample_spec(c, &fixed_ss, &c->protocol->core->default_sample_spec);
3116     pa_tagstruct_put_sample_spec(reply, &fixed_ss);
3117
3118     def_sink = pa_namereg_get_default_sink(c->protocol->core);
3119     pa_tagstruct_puts(reply, def_sink ? def_sink->name : NULL);
3120     def_source = pa_namereg_get_default_source(c->protocol->core);
3121     pa_tagstruct_puts(reply, def_source ? def_source->name : NULL);
3122
3123     pa_tagstruct_putu32(reply, c->protocol->core->cookie);
3124
3125     pa_pstream_send_tagstruct(c->pstream, reply);
3126 }
3127
3128 static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) {
3129     pa_tagstruct *t;
3130     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3131
3132     pa_native_connection_assert_ref(c);
3133
3134     t = pa_tagstruct_new(NULL, 0);
3135     pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
3136     pa_tagstruct_putu32(t, (uint32_t) -1);
3137     pa_tagstruct_putu32(t, e);
3138     pa_tagstruct_putu32(t, idx);
3139     pa_pstream_send_tagstruct(c->pstream, t);
3140 }
3141
3142 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3143     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3144     pa_subscription_mask_t m;
3145
3146     pa_native_connection_assert_ref(c);
3147     pa_assert(t);
3148
3149     if (pa_tagstruct_getu32(t, &m) < 0 ||
3150         !pa_tagstruct_eof(t)) {
3151         protocol_error(c);
3152         return;
3153     }
3154
3155     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3156     CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID);
3157
3158     if (c->subscription)
3159         pa_subscription_free(c->subscription);
3160
3161     if (m != 0) {
3162         c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
3163         pa_assert(c->subscription);
3164     } else
3165         c->subscription = NULL;
3166
3167     pa_pstream_send_simple_ack(c->pstream, tag);
3168 }
3169
3170 static void command_set_volume(
3171         pa_pdispatch *pd,
3172         uint32_t command,
3173         uint32_t tag,
3174         pa_tagstruct *t,
3175         void *userdata) {
3176
3177     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3178     uint32_t idx;
3179     pa_cvolume volume;
3180     pa_sink *sink = NULL;
3181     pa_source *source = NULL;
3182     pa_sink_input *si = NULL;
3183     const char *name = NULL;
3184
3185     pa_native_connection_assert_ref(c);
3186     pa_assert(t);
3187
3188     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3189         (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
3190         (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
3191         pa_tagstruct_get_cvolume(t, &volume) ||
3192         !pa_tagstruct_eof(t)) {
3193         protocol_error(c);
3194         return;
3195     }
3196
3197     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3198     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
3199     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3200     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3201     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3202     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
3203
3204     switch (command) {
3205
3206         case PA_COMMAND_SET_SINK_VOLUME:
3207             if (idx != PA_INVALID_INDEX)
3208                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3209             else
3210                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
3211             break;
3212
3213         case PA_COMMAND_SET_SOURCE_VOLUME:
3214             if (idx != PA_INVALID_INDEX)
3215                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3216             else
3217                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
3218             break;
3219
3220         case PA_COMMAND_SET_SINK_INPUT_VOLUME:
3221             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3222             break;
3223
3224         default:
3225             pa_assert_not_reached();
3226     }
3227
3228     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
3229
3230     if (sink)
3231         pa_sink_set_volume(sink, &volume, TRUE, TRUE);
3232     else if (source)
3233         pa_source_set_volume(source, &volume);
3234     else if (si)
3235         pa_sink_input_set_volume(si, &volume, TRUE);
3236
3237     pa_pstream_send_simple_ack(c->pstream, tag);
3238 }
3239
3240 static void command_set_mute(
3241         pa_pdispatch *pd,
3242         uint32_t command,
3243         uint32_t tag,
3244         pa_tagstruct *t,
3245         void *userdata) {
3246
3247     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3248     uint32_t idx;
3249     pa_bool_t mute;
3250     pa_sink *sink = NULL;
3251     pa_source *source = NULL;
3252     pa_sink_input *si = NULL;
3253     const char *name = NULL;
3254
3255     pa_native_connection_assert_ref(c);
3256     pa_assert(t);
3257
3258     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3259         (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
3260         (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
3261         pa_tagstruct_get_boolean(t, &mute) ||
3262         !pa_tagstruct_eof(t)) {
3263         protocol_error(c);
3264         return;
3265     }
3266
3267     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3268     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
3269     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3270     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3271     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3272
3273     switch (command) {
3274
3275         case PA_COMMAND_SET_SINK_MUTE:
3276
3277             if (idx != PA_INVALID_INDEX)
3278                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3279             else
3280                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
3281
3282             break;
3283
3284         case PA_COMMAND_SET_SOURCE_MUTE:
3285             if (idx != PA_INVALID_INDEX)
3286                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3287             else
3288                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
3289
3290             break;
3291
3292         case PA_COMMAND_SET_SINK_INPUT_MUTE:
3293             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3294             break;
3295
3296         default:
3297             pa_assert_not_reached();
3298     }
3299
3300     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
3301
3302     if (sink)
3303         pa_sink_set_mute(sink, mute);
3304     else if (source)
3305         pa_source_set_mute(source, mute);
3306     else if (si)
3307         pa_sink_input_set_mute(si, mute, TRUE);
3308
3309     pa_pstream_send_simple_ack(c->pstream, tag);
3310 }
3311
3312 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3313     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3314     uint32_t idx;
3315     pa_bool_t b;
3316     playback_stream *s;
3317
3318     pa_native_connection_assert_ref(c);
3319     pa_assert(t);
3320
3321     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3322         pa_tagstruct_get_boolean(t, &b) < 0 ||
3323         !pa_tagstruct_eof(t)) {
3324         protocol_error(c);
3325         return;
3326     }
3327
3328     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3329     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3330     s = pa_idxset_get_by_index(c->output_streams, idx);
3331     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3332     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3333
3334     pa_sink_input_cork(s->sink_input, b);
3335
3336     if (b)
3337         s->is_underrun = TRUE;
3338
3339     pa_pstream_send_simple_ack(c->pstream, tag);
3340 }
3341
3342 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3343     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3344     uint32_t idx;
3345     playback_stream *s;
3346
3347     pa_native_connection_assert_ref(c);
3348     pa_assert(t);
3349
3350     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3351         !pa_tagstruct_eof(t)) {
3352         protocol_error(c);
3353         return;
3354     }
3355
3356     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3357     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3358     s = pa_idxset_get_by_index(c->output_streams, idx);
3359     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3360     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3361
3362     switch (command) {
3363         case PA_COMMAND_FLUSH_PLAYBACK_STREAM:
3364             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL);
3365             break;
3366
3367         case PA_COMMAND_PREBUF_PLAYBACK_STREAM:
3368             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL);
3369             break;
3370
3371         case PA_COMMAND_TRIGGER_PLAYBACK_STREAM:
3372             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL);
3373             break;
3374
3375         default:
3376             pa_assert_not_reached();
3377     }
3378
3379     pa_pstream_send_simple_ack(c->pstream, tag);
3380 }
3381
3382 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3383     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3384     uint32_t idx;
3385     record_stream *s;
3386     pa_bool_t b;
3387
3388     pa_native_connection_assert_ref(c);
3389     pa_assert(t);
3390
3391     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3392         pa_tagstruct_get_boolean(t, &b) < 0 ||
3393         !pa_tagstruct_eof(t)) {
3394         protocol_error(c);
3395         return;
3396     }
3397
3398     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3399     s = pa_idxset_get_by_index(c->record_streams, idx);
3400     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3401
3402     pa_source_output_cork(s->source_output, b);
3403     pa_memblockq_prebuf_force(s->memblockq);
3404     pa_pstream_send_simple_ack(c->pstream, tag);
3405 }
3406
3407 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3408     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3409     uint32_t idx;
3410     record_stream *s;
3411
3412     pa_native_connection_assert_ref(c);
3413     pa_assert(t);
3414
3415     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3416         !pa_tagstruct_eof(t)) {
3417         protocol_error(c);
3418         return;
3419     }
3420
3421     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3422     s = pa_idxset_get_by_index(c->record_streams, idx);
3423     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3424
3425     pa_memblockq_flush_read(s->memblockq);
3426     pa_pstream_send_simple_ack(c->pstream, tag);
3427 }
3428
3429 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3430     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3431     uint32_t idx;
3432     uint32_t maxlength, tlength, prebuf, minreq, fragsize;
3433     pa_tagstruct *reply;
3434
3435     pa_native_connection_assert_ref(c);
3436     pa_assert(t);
3437
3438     if (pa_tagstruct_getu32(t, &idx) < 0) {
3439         protocol_error(c);
3440         return;
3441     }
3442
3443     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3444
3445     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR) {
3446         playback_stream *s;
3447         pa_bool_t adjust_latency = FALSE, early_requests = FALSE;
3448
3449         s = pa_idxset_get_by_index(c->output_streams, idx);
3450         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3451         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3452
3453         if (pa_tagstruct_get(
3454                     t,
3455                     PA_TAG_U32, &maxlength,
3456                     PA_TAG_U32, &tlength,
3457                     PA_TAG_U32, &prebuf,
3458                     PA_TAG_U32, &minreq,
3459                     PA_TAG_INVALID) < 0 ||
3460             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3461             (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) ||
3462             !pa_tagstruct_eof(t)) {
3463             protocol_error(c);
3464             return;
3465         }
3466
3467         fix_playback_buffer_attr_pre(s, adjust_latency, early_requests, &maxlength, &tlength, &prebuf, &minreq);
3468         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3469         pa_memblockq_set_tlength(s->memblockq, tlength);
3470         pa_memblockq_set_prebuf(s->memblockq, prebuf);
3471         pa_memblockq_set_minreq(s->memblockq, minreq);
3472         fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
3473
3474         reply = reply_new(tag);
3475         pa_tagstruct_putu32(reply, maxlength);
3476         pa_tagstruct_putu32(reply, tlength);
3477         pa_tagstruct_putu32(reply, prebuf);
3478         pa_tagstruct_putu32(reply, minreq);
3479
3480         if (c->version >= 13)
3481             pa_tagstruct_put_usec(reply, s->sink_latency);
3482
3483     } else {
3484         record_stream *s;
3485         pa_bool_t adjust_latency = FALSE, early_requests = FALSE;
3486         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR);
3487
3488         s = pa_idxset_get_by_index(c->record_streams, idx);
3489         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3490
3491         if (pa_tagstruct_get(
3492                     t,
3493                     PA_TAG_U32, &maxlength,
3494                     PA_TAG_U32, &fragsize,
3495                     PA_TAG_INVALID) < 0 ||
3496             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3497             (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) ||
3498             !pa_tagstruct_eof(t)) {
3499             protocol_error(c);
3500             return;
3501         }
3502
3503         fix_record_buffer_attr_pre(s, adjust_latency, early_requests, &maxlength, &fragsize);
3504         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3505         fix_record_buffer_attr_post(s, &maxlength, &fragsize);
3506
3507         reply = reply_new(tag);
3508         pa_tagstruct_putu32(reply, maxlength);
3509         pa_tagstruct_putu32(reply, fragsize);
3510
3511         if (c->version >= 13)
3512             pa_tagstruct_put_usec(reply, s->source_latency);
3513     }
3514
3515     pa_pstream_send_tagstruct(c->pstream, reply);
3516 }
3517
3518 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3519     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3520     uint32_t idx;
3521     uint32_t rate;
3522
3523     pa_native_connection_assert_ref(c);
3524     pa_assert(t);
3525
3526     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3527         pa_tagstruct_getu32(t, &rate) < 0 ||
3528         !pa_tagstruct_eof(t)) {
3529         protocol_error(c);
3530         return;
3531     }
3532
3533     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3534     CHECK_VALIDITY(c->pstream, rate > 0 && rate <= PA_RATE_MAX, tag, PA_ERR_INVALID);
3535
3536     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) {
3537         playback_stream *s;
3538
3539         s = pa_idxset_get_by_index(c->output_streams, idx);
3540         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3541         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3542
3543         pa_sink_input_set_rate(s->sink_input, rate);
3544
3545     } else {
3546         record_stream *s;
3547         pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE);
3548
3549         s = pa_idxset_get_by_index(c->record_streams, idx);
3550         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3551
3552         pa_source_output_set_rate(s->source_output, rate);
3553     }
3554
3555     pa_pstream_send_simple_ack(c->pstream, tag);
3556 }
3557
3558 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3559     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3560     uint32_t idx;
3561     uint32_t mode;
3562     pa_proplist *p;
3563
3564     pa_native_connection_assert_ref(c);
3565     pa_assert(t);
3566
3567     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3568
3569     p = pa_proplist_new();
3570
3571     if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) {
3572
3573         if (pa_tagstruct_getu32(t, &mode) < 0 ||
3574             pa_tagstruct_get_proplist(t, p) < 0 ||
3575             !pa_tagstruct_eof(t)) {
3576             protocol_error(c);
3577             pa_proplist_free(p);
3578             return;
3579         }
3580
3581     } else {
3582
3583         if (pa_tagstruct_getu32(t, &idx) < 0 ||
3584             pa_tagstruct_getu32(t, &mode) < 0 ||
3585             pa_tagstruct_get_proplist(t, p) < 0 ||
3586             !pa_tagstruct_eof(t)) {
3587             protocol_error(c);
3588             pa_proplist_free(p);
3589             return;
3590         }
3591     }
3592
3593     CHECK_VALIDITY(c->pstream, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, tag, PA_ERR_INVALID);
3594
3595     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST) {
3596         playback_stream *s;
3597
3598         s = pa_idxset_get_by_index(c->output_streams, idx);
3599         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3600         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3601
3602         pa_sink_input_update_proplist(s->sink_input, mode, p);
3603
3604     } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) {
3605         record_stream *s;
3606
3607         s = pa_idxset_get_by_index(c->record_streams, idx);
3608         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3609
3610         pa_source_output_update_proplist(s->source_output, mode, p);
3611     } else {
3612         pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST);
3613
3614         pa_client_update_proplist(c->client, mode, p);
3615     }
3616
3617     pa_pstream_send_simple_ack(c->pstream, tag);
3618 }
3619
3620 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3621     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3622     uint32_t idx;
3623     unsigned changed = 0;
3624     pa_proplist *p;
3625     pa_strlist *l = NULL;
3626
3627     pa_native_connection_assert_ref(c);
3628     pa_assert(t);
3629
3630     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3631
3632     if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) {
3633
3634         if (pa_tagstruct_getu32(t, &idx) < 0) {
3635             protocol_error(c);
3636             return;
3637         }
3638     }
3639
3640     if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3641         playback_stream *s;
3642
3643         s = pa_idxset_get_by_index(c->output_streams, idx);
3644         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3645         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3646
3647         p = s->sink_input->proplist;
3648
3649     } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3650         record_stream *s;
3651
3652         s = pa_idxset_get_by_index(c->record_streams, idx);
3653         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3654
3655         p = s->source_output->proplist;
3656     } else {
3657         pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3658
3659         p = c->client->proplist;
3660     }
3661
3662     for (;;) {
3663         const char *k;
3664
3665         if (pa_tagstruct_gets(t, &k) < 0) {
3666             protocol_error(c);
3667             pa_strlist_free(l);
3668             return;
3669         }
3670
3671         if (!k)
3672             break;
3673
3674         l = pa_strlist_prepend(l, k);
3675     }
3676
3677     if (!pa_tagstruct_eof(t)) {
3678         protocol_error(c);
3679         pa_strlist_free(l);
3680         return;
3681     }
3682
3683     for (;;) {
3684         char *z;
3685
3686         l = pa_strlist_pop(l, &z);
3687
3688         if (!z)
3689             break;
3690
3691         changed += (unsigned) (pa_proplist_unset(p, z) >= 0);
3692         pa_xfree(z);
3693     }
3694
3695     pa_pstream_send_simple_ack(c->pstream, tag);
3696
3697     if (changed) {
3698         if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3699             playback_stream *s;
3700
3701             s = pa_idxset_get_by_index(c->output_streams, idx);
3702             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3703
3704         } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3705             record_stream *s;
3706
3707             s = pa_idxset_get_by_index(c->record_streams, idx);
3708             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3709
3710         } else {
3711             pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3712             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3713         }
3714     }
3715 }
3716
3717 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3718     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3719     const char *s;
3720
3721     pa_native_connection_assert_ref(c);
3722     pa_assert(t);
3723
3724     if (pa_tagstruct_gets(t, &s) < 0 ||
3725         !pa_tagstruct_eof(t)) {
3726         protocol_error(c);
3727         return;
3728     }
3729
3730     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3731     CHECK_VALIDITY(c->pstream, !s || pa_namereg_is_valid_name(s), tag, PA_ERR_INVALID);
3732
3733     if (command == PA_COMMAND_SET_DEFAULT_SOURCE) {
3734         pa_source *source;
3735
3736         source = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SOURCE);
3737         CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
3738
3739         pa_namereg_set_default_source(c->protocol->core, source);
3740     } else {
3741         pa_sink *sink;
3742         pa_assert(command == PA_COMMAND_SET_DEFAULT_SINK);
3743
3744         sink = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SINK);
3745         CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
3746
3747         pa_namereg_set_default_sink(c->protocol->core, sink);
3748     }
3749
3750     pa_pstream_send_simple_ack(c->pstream, tag);
3751 }
3752
3753 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3754     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3755     uint32_t idx;
3756     const char *name;
3757
3758     pa_native_connection_assert_ref(c);
3759     pa_assert(t);
3760
3761     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3762         pa_tagstruct_gets(t, &name) < 0 ||
3763         !pa_tagstruct_eof(t)) {
3764         protocol_error(c);
3765         return;
3766     }
3767
3768     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3769     CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3770
3771     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
3772         playback_stream *s;
3773
3774         s = pa_idxset_get_by_index(c->output_streams, idx);
3775         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3776         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3777
3778         pa_sink_input_set_name(s->sink_input, name);
3779
3780     } else {
3781         record_stream *s;
3782         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_NAME);
3783
3784         s = pa_idxset_get_by_index(c->record_streams, idx);
3785         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3786
3787         pa_source_output_set_name(s->source_output, name);
3788     }
3789
3790     pa_pstream_send_simple_ack(c->pstream, tag);
3791 }
3792
3793 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3794     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3795     uint32_t idx;
3796
3797     pa_native_connection_assert_ref(c);
3798     pa_assert(t);
3799
3800     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3801         !pa_tagstruct_eof(t)) {
3802         protocol_error(c);
3803         return;
3804     }
3805
3806     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3807
3808     if (command == PA_COMMAND_KILL_CLIENT) {
3809         pa_client *client;
3810
3811         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
3812         CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY);
3813
3814         pa_native_connection_ref(c);
3815         pa_client_kill(client);
3816
3817     } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
3818         pa_sink_input *s;
3819
3820         s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3821         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3822
3823         pa_native_connection_ref(c);
3824         pa_sink_input_kill(s);
3825     } else {
3826         pa_source_output *s;
3827
3828         pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
3829
3830         s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3831         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3832
3833         pa_native_connection_ref(c);
3834         pa_source_output_kill(s);
3835     }
3836
3837     pa_pstream_send_simple_ack(c->pstream, tag);
3838     pa_native_connection_unref(c);
3839 }
3840
3841 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3842     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3843     pa_module *m;
3844     const char *name, *argument;
3845     pa_tagstruct *reply;
3846
3847     pa_native_connection_assert_ref(c);
3848     pa_assert(t);
3849
3850     if (pa_tagstruct_gets(t, &name) < 0 ||
3851         pa_tagstruct_gets(t, &argument) < 0 ||
3852         !pa_tagstruct_eof(t)) {
3853         protocol_error(c);
3854         return;
3855     }
3856
3857     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3858     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID);
3859     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3860
3861     if (!(m = pa_module_load(c->protocol->core, name, argument))) {
3862         pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED);
3863         return;
3864     }
3865
3866     reply = reply_new(tag);
3867     pa_tagstruct_putu32(reply, m->index);
3868     pa_pstream_send_tagstruct(c->pstream, reply);
3869 }
3870
3871 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3872     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3873     uint32_t idx;
3874     pa_module *m;
3875
3876     pa_native_connection_assert_ref(c);
3877     pa_assert(t);
3878
3879     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3880         !pa_tagstruct_eof(t)) {
3881         protocol_error(c);
3882         return;
3883     }
3884
3885     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3886     m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3887     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY);
3888
3889     pa_module_unload_request(m, FALSE);
3890     pa_pstream_send_simple_ack(c->pstream, tag);
3891 }
3892
3893 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3894     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3895     uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX;
3896     const char *name_device = NULL;
3897
3898     pa_native_connection_assert_ref(c);
3899     pa_assert(t);
3900
3901     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3902         pa_tagstruct_getu32(t, &idx_device) < 0 ||
3903         pa_tagstruct_gets(t, &name_device) < 0 ||
3904         !pa_tagstruct_eof(t)) {
3905         protocol_error(c);
3906         return;
3907     }
3908
3909     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3910     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3911
3912     CHECK_VALIDITY(c->pstream, !name_device || pa_namereg_is_valid_name(name_device), tag, PA_ERR_INVALID);
3913     CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || name_device, tag, PA_ERR_INVALID);
3914     CHECK_VALIDITY(c->pstream, idx_device == PA_INVALID_INDEX || !name_device, tag, PA_ERR_INVALID);
3915     CHECK_VALIDITY(c->pstream, !name_device || idx_device == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3916
3917     if (command == PA_COMMAND_MOVE_SINK_INPUT) {
3918         pa_sink_input *si = NULL;
3919         pa_sink *sink = NULL;
3920
3921         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3922
3923         if (idx_device != PA_INVALID_INDEX)
3924             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device);
3925         else
3926             sink = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SINK);
3927
3928         CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY);
3929
3930         if (pa_sink_input_move_to(si, sink, TRUE) < 0) {
3931             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3932             return;
3933         }
3934     } else {
3935         pa_source_output *so = NULL;
3936         pa_source *source;
3937
3938         pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT);
3939
3940         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3941
3942         if (idx_device != PA_INVALID_INDEX)
3943             source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device);
3944         else
3945             source = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SOURCE);
3946
3947         CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY);
3948
3949         if (pa_source_output_move_to(so, source, TRUE) < 0) {
3950             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3951             return;
3952         }
3953     }
3954
3955     pa_pstream_send_simple_ack(c->pstream, tag);
3956 }
3957
3958 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3959     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3960     uint32_t idx = PA_INVALID_INDEX;
3961     const char *name = NULL;
3962     pa_bool_t b;
3963
3964     pa_native_connection_assert_ref(c);
3965     pa_assert(t);
3966
3967     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3968         pa_tagstruct_gets(t, &name) < 0 ||
3969         pa_tagstruct_get_boolean(t, &b) < 0 ||
3970         !pa_tagstruct_eof(t)) {
3971         protocol_error(c);
3972         return;
3973     }
3974
3975     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3976     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name) || *name == 0, tag, PA_ERR_INVALID);
3977     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3978     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3979     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3980
3981     if (command == PA_COMMAND_SUSPEND_SINK) {
3982
3983         if (idx == PA_INVALID_INDEX && name && !*name) {
3984
3985             pa_log_debug("%s all sinks", b ? "Suspending" : "Resuming");
3986
3987             if (pa_sink_suspend_all(c->protocol->core, b) < 0) {
3988                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3989                 return;
3990             }
3991         } else {
3992             pa_sink *sink = NULL;
3993
3994             if (idx != PA_INVALID_INDEX)
3995                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3996             else
3997                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
3998
3999             CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
4000
4001             if (pa_sink_suspend(sink, b) < 0) {
4002                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
4003                 return;
4004             }
4005         }
4006     } else {
4007
4008         pa_assert(command == PA_COMMAND_SUSPEND_SOURCE);
4009
4010         if (idx == PA_INVALID_INDEX && name && !*name) {
4011
4012             pa_log_debug("%s all sources", b ? "Suspending" : "Resuming");
4013
4014             if (pa_source_suspend_all(c->protocol->core, b) < 0) {
4015                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
4016                 return;
4017             }
4018
4019         } else {
4020             pa_source *source;
4021
4022             if (idx != PA_INVALID_INDEX)
4023                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
4024             else
4025                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
4026
4027             CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
4028
4029             if (pa_source_suspend(source, b) < 0) {
4030                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
4031                 return;
4032             }
4033         }
4034     }
4035
4036     pa_pstream_send_simple_ack(c->pstream, tag);
4037 }
4038
4039 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
4040     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4041     uint32_t idx = PA_INVALID_INDEX;
4042     const char *name = NULL;
4043     pa_module *m;
4044     pa_native_protocol_ext_cb_t cb;
4045
4046     pa_native_connection_assert_ref(c);
4047     pa_assert(t);
4048
4049     if (pa_tagstruct_getu32(t, &idx) < 0 ||
4050         pa_tagstruct_gets(t, &name) < 0) {
4051         protocol_error(c);
4052         return;
4053     }
4054
4055     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
4056     CHECK_VALIDITY(c->pstream, !name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
4057     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
4058     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
4059     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
4060
4061     if (idx != PA_INVALID_INDEX)
4062         m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
4063     else {
4064         for (m = pa_idxset_first(c->protocol->core->modules, &idx); m; m = pa_idxset_next(c->protocol->core->modules, &idx))
4065             if (strcmp(name, m->name) == 0)
4066                 break;
4067     }
4068
4069     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
4070     CHECK_VALIDITY(c->pstream, m->load_once || idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
4071
4072     cb = (pa_native_protocol_ext_cb_t) (unsigned long) pa_hashmap_get(c->protocol->extensions, m);
4073     CHECK_VALIDITY(c->pstream, cb, tag, PA_ERR_NOEXTENSION);
4074
4075     if (cb(c->protocol, m, c, tag, t) < 0)
4076         protocol_error(c);
4077 }
4078
4079 static void command_set_card_profile(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
4080     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4081     uint32_t idx = PA_INVALID_INDEX;
4082     const char *name = NULL, *profile = NULL;
4083     pa_card *card = NULL;
4084
4085     pa_native_connection_assert_ref(c);
4086     pa_assert(t);
4087
4088     if (pa_tagstruct_getu32(t, &idx) < 0 ||
4089         pa_tagstruct_gets(t, &name) < 0 ||
4090         pa_tagstruct_gets(t, &profile) < 0 ||
4091         !pa_tagstruct_eof(t)) {
4092         protocol_error(c);
4093         return;
4094     }
4095
4096     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
4097     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
4098     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
4099     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
4100     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
4101
4102     if (idx != PA_INVALID_INDEX)
4103         card = pa_idxset_get_by_index(c->protocol->core->cards, idx);
4104     else
4105         card = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_CARD);
4106
4107     CHECK_VALIDITY(c->pstream, card, tag, PA_ERR_NOENTITY);
4108
4109     if (pa_card_set_profile(card, profile) < 0) {
4110         pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
4111         return;
4112     }
4113
4114     pa_pstream_send_simple_ack(c->pstream, tag);
4115 }
4116
4117 /*** pstream callbacks ***/
4118
4119 static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
4120     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4121
4122     pa_assert(p);
4123     pa_assert(packet);
4124     pa_native_connection_assert_ref(c);
4125
4126     if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) {
4127         pa_log("invalid packet.");
4128         native_connection_unlink(c);
4129     }
4130 }
4131
4132 static void pstream_memblock_callback(pa_pstream *p, uint32_t channel, int64_t offset, pa_seek_mode_t seek, const pa_memchunk *chunk, void *userdata) {
4133     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4134     output_stream *stream;
4135
4136     pa_assert(p);
4137     pa_assert(chunk);
4138     pa_native_connection_assert_ref(c);
4139
4140     if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) {
4141         pa_log("client sent block for invalid stream.");
4142         /* Ignoring */
4143         return;
4144     }
4145
4146 /*     pa_log("got %lu bytes", (unsigned long) chunk->length); */
4147
4148     if (playback_stream_isinstance(stream)) {
4149         playback_stream *ps = PLAYBACK_STREAM(stream);
4150
4151         if (chunk->memblock) {
4152             if (seek != PA_SEEK_RELATIVE || offset != 0)
4153                 pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_SEEK, PA_UINT_TO_PTR(seek), offset, NULL, NULL);
4154
4155             pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
4156         } else
4157             pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_SEEK, PA_UINT_TO_PTR(seek), offset+chunk->length, NULL, NULL);
4158
4159     } else {
4160         upload_stream *u = UPLOAD_STREAM(stream);
4161         size_t l;
4162
4163         if (!u->memchunk.memblock) {
4164             if (u->length == chunk->length && chunk->memblock) {
4165                 u->memchunk = *chunk;
4166                 pa_memblock_ref(u->memchunk.memblock);
4167                 u->length = 0;
4168             } else {
4169                 u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length);
4170                 u->memchunk.index = u->memchunk.length = 0;
4171             }
4172         }
4173
4174         pa_assert(u->memchunk.memblock);
4175
4176         l = u->length;
4177         if (l > chunk->length)
4178             l = chunk->length;
4179
4180         if (l > 0) {
4181             void *dst;
4182             dst = pa_memblock_acquire(u->memchunk.memblock);
4183
4184             if (chunk->memblock) {
4185                 void *src;
4186                 src = pa_memblock_acquire(chunk->memblock);
4187
4188                 memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length,
4189                        (uint8_t*) src + chunk->index, l);
4190
4191                 pa_memblock_release(chunk->memblock);
4192             } else
4193                 pa_silence_memory((uint8_t*) dst + u->memchunk.index + u->memchunk.length, l, &u->sample_spec);
4194
4195             pa_memblock_release(u->memchunk.memblock);
4196
4197             u->memchunk.length += l;
4198             u->length -= l;
4199         }
4200     }
4201 }
4202
4203 static void pstream_die_callback(pa_pstream *p, void *userdata) {
4204     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4205
4206     pa_assert(p);
4207     pa_native_connection_assert_ref(c);
4208
4209     native_connection_unlink(c);
4210     pa_log_info("Connection died.");
4211 }
4212
4213 static void pstream_drain_callback(pa_pstream *p, void *userdata) {
4214     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4215
4216     pa_assert(p);
4217     pa_native_connection_assert_ref(c);
4218
4219     native_connection_send_memblock(c);
4220 }
4221
4222 static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
4223     pa_thread_mq *q;
4224
4225     if (!(q = pa_thread_mq_get()))
4226         pa_pstream_send_revoke(p, block_id);
4227     else
4228         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
4229 }
4230
4231 static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
4232     pa_thread_mq *q;
4233
4234     if (!(q = pa_thread_mq_get()))
4235         pa_pstream_send_release(p, block_id);
4236     else
4237         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
4238 }
4239
4240 /*** client callbacks ***/
4241
4242 static void client_kill_cb(pa_client *c) {
4243     pa_assert(c);
4244
4245     native_connection_unlink(PA_NATIVE_CONNECTION(c->userdata));
4246     pa_log_info("Connection killed.");
4247 }
4248
4249 static void client_send_event_cb(pa_client *client, const char*event, pa_proplist *pl) {
4250     pa_tagstruct *t;
4251     pa_native_connection *c;
4252
4253     pa_assert(client);
4254     c = PA_NATIVE_CONNECTION(client->userdata);
4255     pa_native_connection_assert_ref(c);
4256
4257     if (c->version < 15)
4258       return;
4259
4260     t = pa_tagstruct_new(NULL, 0);
4261     pa_tagstruct_putu32(t, PA_COMMAND_CLIENT_EVENT);
4262     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
4263     pa_tagstruct_puts(t, event);
4264     pa_tagstruct_put_proplist(t, pl);
4265     pa_pstream_send_tagstruct(c->pstream, t);
4266 }
4267
4268 /*** module entry points ***/
4269
4270 static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
4271     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4272
4273     pa_assert(m);
4274     pa_assert(tv);
4275     pa_native_connection_assert_ref(c);
4276     pa_assert(c->auth_timeout_event == e);
4277
4278     if (!c->authorized) {
4279         native_connection_unlink(c);
4280         pa_log_info("Connection terminated due to authentication timeout.");
4281     }
4282 }
4283
4284 void pa_native_protocol_connect(pa_native_protocol *p, pa_iochannel *io, pa_native_options *o) {
4285     pa_native_connection *c;
4286     char pname[128];
4287     pa_client *client;
4288     pa_client_new_data data;
4289
4290     pa_assert(p);
4291     pa_assert(io);
4292     pa_assert(o);
4293
4294     if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
4295         pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
4296         pa_iochannel_free(io);
4297         return;
4298     }
4299
4300     pa_client_new_data_init(&data);
4301     data.module = o->module;
4302     data.driver = __FILE__;
4303     pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
4304     pa_proplist_setf(data.proplist, PA_PROP_APPLICATION_NAME, "Native client (%s)", pname);
4305     pa_proplist_sets(data.proplist, "native-protocol.peer", pname);
4306     client = pa_client_new(p->core, &data);
4307     pa_client_new_data_done(&data);
4308
4309     if (!client)
4310         return;
4311
4312     c = pa_msgobject_new(pa_native_connection);
4313     c->parent.parent.free = native_connection_free;
4314     c->parent.process_msg = native_connection_process_msg;
4315     c->protocol = p;
4316     c->options = pa_native_options_ref(o);
4317     c->authorized = FALSE;
4318
4319     if (o->auth_anonymous) {
4320         pa_log_info("Client authenticated anonymously.");
4321         c->authorized = TRUE;
4322     }
4323
4324     if (!c->authorized &&
4325         o->auth_ip_acl &&
4326         pa_ip_acl_check(o->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) {
4327
4328         pa_log_info("Client authenticated by IP ACL.");
4329         c->authorized = TRUE;
4330     }
4331
4332     if (!c->authorized) {
4333         struct timeval tv;
4334         pa_gettimeofday(&tv);
4335         tv.tv_sec += AUTH_TIMEOUT;
4336         c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
4337     } else
4338         c->auth_timeout_event = NULL;
4339
4340     c->is_local = pa_iochannel_socket_is_local(io);
4341     c->version = 8;
4342
4343     c->client = client;
4344     c->client->kill = client_kill_cb;
4345     c->client->send_event = client_send_event_cb;
4346     c->client->userdata = c;
4347
4348     c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool);
4349     pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
4350     pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
4351     pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
4352     pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
4353     pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c);
4354     pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c);
4355
4356     c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
4357
4358     c->record_streams = pa_idxset_new(NULL, NULL);
4359     c->output_streams = pa_idxset_new(NULL, NULL);
4360
4361     c->rrobin_index = PA_IDXSET_INVALID;
4362     c->subscription = NULL;
4363
4364     pa_idxset_put(p->connections, c, NULL);
4365
4366 #ifdef HAVE_CREDS
4367     if (pa_iochannel_creds_supported(io))
4368         pa_iochannel_creds_enable(io);
4369 #endif
4370
4371     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_CONNECTION_PUT], c);
4372 }
4373
4374 void pa_native_protocol_disconnect(pa_native_protocol *p, pa_module *m) {
4375     pa_native_connection *c;
4376     void *state = NULL;
4377
4378     pa_assert(p);
4379     pa_assert(m);
4380
4381     while ((c = pa_idxset_iterate(p->connections, &state, NULL)))
4382         if (c->options->module == m)
4383             native_connection_unlink(c);
4384 }
4385
4386 static pa_native_protocol* native_protocol_new(pa_core *c) {
4387     pa_native_protocol *p;
4388     pa_native_hook_t h;
4389
4390     pa_assert(c);
4391
4392     p = pa_xnew(pa_native_protocol, 1);
4393     PA_REFCNT_INIT(p);
4394     p->core = c;
4395     p->connections = pa_idxset_new(NULL, NULL);
4396
4397     p->servers = NULL;
4398
4399     p->extensions = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
4400
4401     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4402         pa_hook_init(&p->hooks[h], p);
4403
4404     pa_assert_se(pa_shared_set(c, "native-protocol", p) >= 0);
4405
4406     return p;
4407 }
4408
4409 pa_native_protocol* pa_native_protocol_get(pa_core *c) {
4410     pa_native_protocol *p;
4411
4412     if ((p = pa_shared_get(c, "native-protocol")))
4413         return pa_native_protocol_ref(p);
4414
4415     return native_protocol_new(c);
4416 }
4417
4418 pa_native_protocol* pa_native_protocol_ref(pa_native_protocol *p) {
4419     pa_assert(p);
4420     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4421
4422     PA_REFCNT_INC(p);
4423
4424     return p;
4425 }
4426
4427 void pa_native_protocol_unref(pa_native_protocol *p) {
4428     pa_native_connection *c;
4429     pa_native_hook_t h;
4430
4431     pa_assert(p);
4432     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4433
4434     if (PA_REFCNT_DEC(p) > 0)
4435         return;
4436
4437     while ((c = pa_idxset_first(p->connections, NULL)))
4438         native_connection_unlink(c);
4439
4440     pa_idxset_free(p->connections, NULL, NULL);
4441
4442     pa_strlist_free(p->servers);
4443
4444     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4445         pa_hook_done(&p->hooks[h]);
4446
4447     pa_hashmap_free(p->extensions, NULL, NULL);
4448
4449     pa_assert_se(pa_shared_remove(p->core, "native-protocol") >= 0);
4450
4451     pa_xfree(p);
4452 }
4453
4454 void pa_native_protocol_add_server_string(pa_native_protocol *p, const char *name) {
4455     pa_assert(p);
4456     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4457     pa_assert(name);
4458
4459     p->servers = pa_strlist_prepend(p->servers, name);
4460
4461     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4462 }
4463
4464 void pa_native_protocol_remove_server_string(pa_native_protocol *p, const char *name) {
4465     pa_assert(p);
4466     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4467     pa_assert(name);
4468
4469     p->servers = pa_strlist_remove(p->servers, name);
4470
4471     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4472 }
4473
4474 pa_hook *pa_native_protocol_hooks(pa_native_protocol *p) {
4475     pa_assert(p);
4476     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4477
4478     return p->hooks;
4479 }
4480
4481 pa_strlist *pa_native_protocol_servers(pa_native_protocol *p) {
4482     pa_assert(p);
4483     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4484
4485     return p->servers;
4486 }
4487
4488 int pa_native_protocol_install_ext(pa_native_protocol *p, pa_module *m, pa_native_protocol_ext_cb_t cb) {
4489     pa_assert(p);
4490     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4491     pa_assert(m);
4492     pa_assert(cb);
4493     pa_assert(!pa_hashmap_get(p->extensions, m));
4494
4495     pa_assert_se(pa_hashmap_put(p->extensions, m, (void*) (unsigned long) cb) == 0);
4496     return 0;
4497 }
4498
4499 void pa_native_protocol_remove_ext(pa_native_protocol *p, pa_module *m) {
4500     pa_assert(p);
4501     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4502     pa_assert(m);
4503
4504     pa_assert_se(pa_hashmap_remove(p->extensions, m));
4505 }
4506
4507 pa_native_options* pa_native_options_new(void) {
4508     pa_native_options *o;
4509
4510     o = pa_xnew0(pa_native_options, 1);
4511     PA_REFCNT_INIT(o);
4512
4513     return o;
4514 }
4515
4516 pa_native_options* pa_native_options_ref(pa_native_options *o) {
4517     pa_assert(o);
4518     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4519
4520     PA_REFCNT_INC(o);
4521
4522     return o;
4523 }
4524
4525 void pa_native_options_unref(pa_native_options *o) {
4526     pa_assert(o);
4527     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4528
4529     if (PA_REFCNT_DEC(o) > 0)
4530         return;
4531
4532     pa_xfree(o->auth_group);
4533
4534     if (o->auth_ip_acl)
4535         pa_ip_acl_free(o->auth_ip_acl);
4536
4537     if (o->auth_cookie)
4538         pa_auth_cookie_unref(o->auth_cookie);
4539
4540     pa_xfree(o);
4541 }
4542
4543 int pa_native_options_parse(pa_native_options *o, pa_core *c, pa_modargs *ma) {
4544     pa_bool_t enabled;
4545     const char *acl;
4546
4547     pa_assert(o);
4548     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4549     pa_assert(ma);
4550
4551     if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &o->auth_anonymous) < 0) {
4552         pa_log("auth-anonymous= expects a boolean argument.");
4553         return -1;
4554     }
4555
4556     enabled = TRUE;
4557     if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &enabled) < 0) {
4558         pa_log("auth-group-enabled= expects a boolean argument.");
4559         return -1;
4560     }
4561
4562     pa_xfree(o->auth_group);
4563     o->auth_group = enabled ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL;
4564
4565 #ifndef HAVE_CREDS
4566     if (o->auth_group)
4567         pa_log_warn("Authentication group configured, but not available on local system. Ignoring.");
4568 #endif
4569
4570     if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) {
4571         pa_ip_acl *ipa;
4572
4573         if (!(ipa = pa_ip_acl_new(acl))) {
4574             pa_log("Failed to parse IP ACL '%s'", acl);
4575             return -1;
4576         }
4577
4578         if (o->auth_ip_acl)
4579             pa_ip_acl_free(o->auth_ip_acl);
4580
4581         o->auth_ip_acl = ipa;
4582     }
4583
4584     enabled = TRUE;
4585     if (pa_modargs_get_value_boolean(ma, "auth-cookie-enabled", &enabled) < 0) {
4586         pa_log("auth-cookie-enabled= expects a boolean argument.");
4587         return -1;
4588     }
4589
4590     if (o->auth_cookie)
4591         pa_auth_cookie_unref(o->auth_cookie);
4592
4593     if (enabled) {
4594         const char *cn;
4595
4596         /* The new name for this is 'auth-cookie', for compat reasons
4597          * we check the old name too */
4598         if (!(cn = pa_modargs_get_value(ma, "auth-cookie", NULL)))
4599             if (!(cn = pa_modargs_get_value(ma, "cookie", NULL)))
4600                 cn = PA_NATIVE_COOKIE_FILE;
4601
4602         if (!(o->auth_cookie = pa_auth_cookie_get(c, cn, PA_NATIVE_COOKIE_LENGTH)))
4603             return -1;
4604
4605     } else
4606           o->auth_cookie = NULL;
4607
4608     return 0;
4609 }
4610
4611 pa_pstream* pa_native_connection_get_pstream(pa_native_connection *c) {
4612     pa_native_connection_assert_ref(c);
4613
4614     return c->pstream;
4615 }