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