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_pdispatch *pd, 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_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_pdispatch *pd, 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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1957     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1958     int ret;
1959
1960     pa_native_connection_assert_ref(c);
1961     pa_assert(t);
1962
1963     if (!pa_tagstruct_eof(t)) {
1964         protocol_error(c);
1965         return;
1966     }
1967
1968     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1969     ret = pa_core_exit(c->protocol->core, FALSE, 0);
1970     CHECK_VALIDITY(c->pstream, ret >= 0, tag, PA_ERR_ACCESS);
1971
1972     pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
1973 }
1974
1975 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1976     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1977     const void*cookie;
1978     pa_tagstruct *reply;
1979     pa_bool_t shm_on_remote, do_shm;
1980
1981     pa_native_connection_assert_ref(c);
1982     pa_assert(t);
1983
1984     if (pa_tagstruct_getu32(t, &c->version) < 0 ||
1985         pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
1986         !pa_tagstruct_eof(t)) {
1987         protocol_error(c);
1988         return;
1989     }
1990
1991     /* Minimum supported version */
1992     if (c->version < 8) {
1993         pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION);
1994         return;
1995     }
1996
1997     /* Starting with protocol version 13 the MSB of the version tag
1998        reflects if shm is available for this pa_native_connection or
1999        not. */
2000     if (c->version >= 13) {
2001         shm_on_remote = !!(c->version & 0x80000000U);
2002         c->version &= 0x7FFFFFFFU;
2003     }
2004
2005     pa_log_debug("Protocol version: remote %u, local %u", c->version, PA_PROTOCOL_VERSION);
2006
2007     pa_proplist_setf(c->client->proplist, "native-protocol.version", "%u", c->version);
2008
2009     if (!c->authorized) {
2010         pa_bool_t success = FALSE;
2011
2012 #ifdef HAVE_CREDS
2013         const pa_creds *creds;
2014
2015         if ((creds = pa_pdispatch_creds(pd))) {
2016             if (creds->uid == getuid())
2017                 success = TRUE;
2018             else if (c->options->auth_group) {
2019                 int r;
2020                 gid_t gid;
2021
2022                 if ((gid = pa_get_gid_of_group(c->options->auth_group)) == (gid_t) -1)
2023                     pa_log_warn("Failed to get GID of group '%s'", c->options->auth_group);
2024                 else if (gid == creds->gid)
2025                     success = TRUE;
2026
2027                 if (!success) {
2028                     if ((r = pa_uid_in_group(creds->uid, c->options->auth_group)) < 0)
2029                         pa_log_warn("Failed to check group membership.");
2030                     else if (r > 0)
2031                         success = TRUE;
2032                 }
2033             }
2034
2035             pa_log_info("Got credentials: uid=%lu gid=%lu success=%i",
2036                         (unsigned long) creds->uid,
2037                         (unsigned long) creds->gid,
2038                         (int) success);
2039         }
2040 #endif
2041
2042         if (!success && c->options->auth_cookie) {
2043             const uint8_t *ac;
2044
2045             if ((ac = pa_auth_cookie_read(c->options->auth_cookie, PA_NATIVE_COOKIE_LENGTH)))
2046                 if (memcmp(ac, cookie, PA_NATIVE_COOKIE_LENGTH) == 0)
2047                     success = TRUE;
2048         }
2049
2050         if (!success) {
2051             pa_log_warn("Denied access to client with invalid authorization data.");
2052             pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS);
2053             return;
2054         }
2055
2056         c->authorized = TRUE;
2057         if (c->auth_timeout_event) {
2058             c->protocol->core->mainloop->time_free(c->auth_timeout_event);
2059             c->auth_timeout_event = NULL;
2060         }
2061     }
2062
2063     /* Enable shared memory support if possible */
2064     do_shm =
2065         pa_mempool_is_shared(c->protocol->core->mempool) &&
2066         c->is_local;
2067
2068     pa_log_debug("SHM possible: %s", pa_yes_no(do_shm));
2069
2070     if (do_shm)
2071         if (c->version < 10 || (c->version >= 13 && !shm_on_remote))
2072             do_shm = FALSE;
2073
2074     if (do_shm) {
2075         /* Only enable SHM if both sides are owned by the same
2076          * user. This is a security measure because otherwise data
2077          * private to the user might leak. */
2078
2079         const pa_creds *creds;
2080         if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid)
2081             do_shm = FALSE;
2082     }
2083
2084     pa_log_debug("Negotiated SHM: %s", pa_yes_no(do_shm));
2085     pa_pstream_enable_shm(c->pstream, do_shm);
2086
2087     reply = reply_new(tag);
2088     pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION | (do_shm ? 0x80000000 : 0));
2089
2090 #ifdef HAVE_CREDS
2091 {
2092     /* SHM support is only enabled after both sides made sure they are the same user. */
2093
2094     pa_creds ucred;
2095
2096     ucred.uid = getuid();
2097     ucred.gid = getgid();
2098
2099     pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred);
2100 }
2101 #else
2102     pa_pstream_send_tagstruct(c->pstream, reply);
2103 #endif
2104 }
2105
2106 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2107     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2108     const char *name = NULL;
2109     pa_proplist *p;
2110     pa_tagstruct *reply;
2111
2112     pa_native_connection_assert_ref(c);
2113     pa_assert(t);
2114
2115     p = pa_proplist_new();
2116
2117     if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) ||
2118         (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2119         !pa_tagstruct_eof(t)) {
2120
2121         protocol_error(c);
2122         pa_proplist_free(p);
2123         return;
2124     }
2125
2126     if (name)
2127         if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) {
2128             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
2129             pa_proplist_free(p);
2130             return;
2131         }
2132
2133     pa_proplist_update(c->client->proplist, PA_UPDATE_REPLACE, p);
2134     pa_proplist_free(p);
2135
2136     pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
2137
2138     reply = reply_new(tag);
2139
2140     if (c->version >= 13)
2141         pa_tagstruct_putu32(reply, c->client->index);
2142
2143     pa_pstream_send_tagstruct(c->pstream, reply);
2144 }
2145
2146 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2147     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2148     const char *name;
2149     uint32_t idx = PA_IDXSET_INVALID;
2150
2151     pa_native_connection_assert_ref(c);
2152     pa_assert(t);
2153
2154     if (pa_tagstruct_gets(t, &name) < 0 ||
2155         !pa_tagstruct_eof(t)) {
2156         protocol_error(c);
2157         return;
2158     }
2159
2160     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2161     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2162
2163     if (command == PA_COMMAND_LOOKUP_SINK) {
2164         pa_sink *sink;
2165         if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1)))
2166             idx = sink->index;
2167     } else {
2168         pa_source *source;
2169         pa_assert(command == PA_COMMAND_LOOKUP_SOURCE);
2170         if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1)))
2171             idx = source->index;
2172     }
2173
2174     if (idx == PA_IDXSET_INVALID)
2175         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2176     else {
2177         pa_tagstruct *reply;
2178         reply = reply_new(tag);
2179         pa_tagstruct_putu32(reply, idx);
2180         pa_pstream_send_tagstruct(c->pstream, reply);
2181     }
2182 }
2183
2184 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2185     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2186     uint32_t idx;
2187     playback_stream *s;
2188
2189     pa_native_connection_assert_ref(c);
2190     pa_assert(t);
2191
2192     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2193         !pa_tagstruct_eof(t)) {
2194         protocol_error(c);
2195         return;
2196     }
2197
2198     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2199     s = pa_idxset_get_by_index(c->output_streams, idx);
2200     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2201     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2202
2203     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);
2204 }
2205
2206 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2207     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2208     pa_tagstruct *reply;
2209     const pa_mempool_stat *stat;
2210
2211     pa_native_connection_assert_ref(c);
2212     pa_assert(t);
2213
2214     if (!pa_tagstruct_eof(t)) {
2215         protocol_error(c);
2216         return;
2217     }
2218
2219     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2220
2221     stat = pa_mempool_get_stat(c->protocol->core->mempool);
2222
2223     reply = reply_new(tag);
2224     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated));
2225     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size));
2226     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated));
2227     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size));
2228     pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
2229     pa_pstream_send_tagstruct(c->pstream, reply);
2230 }
2231
2232 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2233     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2234     pa_tagstruct *reply;
2235     playback_stream *s;
2236     struct timeval tv, now;
2237     uint32_t idx;
2238     pa_usec_t latency;
2239
2240     pa_native_connection_assert_ref(c);
2241     pa_assert(t);
2242
2243     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2244         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2245         !pa_tagstruct_eof(t)) {
2246         protocol_error(c);
2247         return;
2248     }
2249
2250     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2251     s = pa_idxset_get_by_index(c->output_streams, idx);
2252     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2253     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2254     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)
2255
2256     reply = reply_new(tag);
2257
2258     latency = pa_sink_get_latency(s->sink_input->sink);
2259     latency += pa_bytes_to_usec(s->render_memblockq_length, &s->sink_input->sample_spec);
2260
2261     pa_tagstruct_put_usec(reply, latency);
2262
2263     pa_tagstruct_put_usec(reply, 0);
2264     pa_tagstruct_put_boolean(reply, s->sink_input->thread_info.playing_for > 0);
2265     pa_tagstruct_put_timeval(reply, &tv);
2266     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2267     pa_tagstruct_puts64(reply, s->write_index);
2268     pa_tagstruct_puts64(reply, s->read_index);
2269
2270     if (c->version >= 13) {
2271         pa_tagstruct_putu64(reply, s->sink_input->thread_info.underrun_for);
2272         pa_tagstruct_putu64(reply, s->sink_input->thread_info.playing_for);
2273     }
2274
2275     pa_pstream_send_tagstruct(c->pstream, reply);
2276 }
2277
2278 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2279     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2280     pa_tagstruct *reply;
2281     record_stream *s;
2282     struct timeval tv, now;
2283     uint32_t idx;
2284
2285     pa_native_connection_assert_ref(c);
2286     pa_assert(t);
2287
2288     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2289         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2290         !pa_tagstruct_eof(t)) {
2291         protocol_error(c);
2292         return;
2293     }
2294
2295     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2296     s = pa_idxset_get_by_index(c->record_streams, idx);
2297     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2298
2299     reply = reply_new(tag);
2300     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
2301     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
2302     pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_RUNNING);
2303     pa_tagstruct_put_timeval(reply, &tv);
2304     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2305     pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
2306     pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
2307     pa_pstream_send_tagstruct(c->pstream, reply);
2308 }
2309
2310 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2311     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2312     upload_stream *s;
2313     uint32_t length;
2314     const char *name = NULL;
2315     pa_sample_spec ss;
2316     pa_channel_map map;
2317     pa_tagstruct *reply;
2318     pa_proplist *p;
2319
2320     pa_native_connection_assert_ref(c);
2321     pa_assert(t);
2322
2323     if (pa_tagstruct_gets(t, &name) < 0 ||
2324         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
2325         pa_tagstruct_get_channel_map(t, &map) < 0 ||
2326         pa_tagstruct_getu32(t, &length) < 0) {
2327         protocol_error(c);
2328         return;
2329     }
2330
2331     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2332     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
2333     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
2334     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
2335     CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID);
2336     CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE);
2337
2338     p = pa_proplist_new();
2339
2340     if (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) {
2341         protocol_error(c);
2342         pa_proplist_free(p);
2343         return;
2344     }
2345
2346     if (c->version < 13)
2347         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2348     else if (!name)
2349         if (!(name = pa_proplist_gets(p, PA_PROP_EVENT_ID)))
2350             name = pa_proplist_gets(p, PA_PROP_MEDIA_NAME);
2351
2352     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2353
2354     s = upload_stream_new(c, &ss, &map, name, length, p);
2355     pa_proplist_free(p);
2356
2357     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
2358
2359     reply = reply_new(tag);
2360     pa_tagstruct_putu32(reply, s->index);
2361     pa_tagstruct_putu32(reply, length);
2362     pa_pstream_send_tagstruct(c->pstream, reply);
2363 }
2364
2365 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2366     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2367     uint32_t channel;
2368     upload_stream *s;
2369     uint32_t idx;
2370
2371     pa_native_connection_assert_ref(c);
2372     pa_assert(t);
2373
2374     if (pa_tagstruct_getu32(t, &channel) < 0 ||
2375         !pa_tagstruct_eof(t)) {
2376         protocol_error(c);
2377         return;
2378     }
2379
2380     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2381
2382     s = pa_idxset_get_by_index(c->output_streams, channel);
2383     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2384     CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2385
2386     if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, s->proplist, &idx) < 0)
2387         pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL);
2388     else
2389         pa_pstream_send_simple_ack(c->pstream, tag);
2390
2391     upload_stream_unlink(s);
2392 }
2393
2394 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2395     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2396     uint32_t sink_index;
2397     pa_volume_t volume;
2398     pa_sink *sink;
2399     const char *name, *sink_name;
2400     uint32_t idx;
2401     pa_proplist *p;
2402     pa_tagstruct *reply;
2403
2404     pa_native_connection_assert_ref(c);
2405     pa_assert(t);
2406
2407     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2408
2409     if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
2410         pa_tagstruct_gets(t, &sink_name) < 0 ||
2411         pa_tagstruct_getu32(t, &volume) < 0 ||
2412         pa_tagstruct_gets(t, &name) < 0) {
2413         protocol_error(c);
2414         return;
2415     }
2416
2417     CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2418     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2419
2420     if (sink_index != PA_INVALID_INDEX)
2421         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
2422     else
2423         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
2424
2425     CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
2426
2427     p = pa_proplist_new();
2428
2429     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2430         !pa_tagstruct_eof(t)) {
2431         protocol_error(c);
2432         pa_proplist_free(p);
2433         return;
2434     }
2435
2436     pa_proplist_update(p, PA_UPDATE_MERGE, c->client->proplist);
2437
2438     if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) {
2439         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2440         pa_proplist_free(p);
2441         return;
2442     }
2443
2444     pa_proplist_free(p);
2445
2446     reply = reply_new(tag);
2447
2448     if (c->version >= 13)
2449         pa_tagstruct_putu32(reply, idx);
2450
2451     pa_pstream_send_tagstruct(c->pstream, reply);
2452 }
2453
2454 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2455     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2456     const char *name;
2457
2458     pa_native_connection_assert_ref(c);
2459     pa_assert(t);
2460
2461     if (pa_tagstruct_gets(t, &name) < 0 ||
2462         !pa_tagstruct_eof(t)) {
2463         protocol_error(c);
2464         return;
2465     }
2466
2467     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2468     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2469
2470     if (pa_scache_remove_item(c->protocol->core, name) < 0) {
2471         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2472         return;
2473     }
2474
2475     pa_pstream_send_simple_ack(c->pstream, tag);
2476 }
2477
2478 static void fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) {
2479     pa_assert(c);
2480     pa_assert(fixed);
2481     pa_assert(original);
2482
2483     *fixed = *original;
2484
2485     if (c->version < 12) {
2486         /* Before protocol version 12 we didn't support S32 samples,
2487          * so we need to lie about this to the client */
2488
2489         if (fixed->format == PA_SAMPLE_S32LE)
2490             fixed->format = PA_SAMPLE_FLOAT32LE;
2491         if (fixed->format == PA_SAMPLE_S32BE)
2492             fixed->format = PA_SAMPLE_FLOAT32BE;
2493     }
2494 }
2495
2496 static void sink_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink *sink) {
2497     pa_sample_spec fixed_ss;
2498
2499     pa_assert(t);
2500     pa_sink_assert_ref(sink);
2501
2502     fixup_sample_spec(c, &fixed_ss, &sink->sample_spec);
2503
2504     pa_tagstruct_put(
2505         t,
2506         PA_TAG_U32, sink->index,
2507         PA_TAG_STRING, sink->name,
2508         PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2509         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2510         PA_TAG_CHANNEL_MAP, &sink->channel_map,
2511         PA_TAG_U32, sink->module ? sink->module->index : PA_INVALID_INDEX,
2512         PA_TAG_CVOLUME, pa_sink_get_volume(sink),
2513         PA_TAG_BOOLEAN, pa_sink_get_mute(sink),
2514         PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX,
2515         PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL,
2516         PA_TAG_USEC, pa_sink_get_latency(sink),
2517         PA_TAG_STRING, sink->driver,
2518         PA_TAG_U32, sink->flags,
2519         PA_TAG_INVALID);
2520
2521     if (c->version >= 13) {
2522         pa_tagstruct_put_proplist(t, sink->proplist);
2523         pa_tagstruct_put_usec(t, pa_sink_get_requested_latency(sink));
2524     }
2525 }
2526
2527 static void source_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source *source) {
2528     pa_sample_spec fixed_ss;
2529
2530     pa_assert(t);
2531     pa_source_assert_ref(source);
2532
2533     fixup_sample_spec(c, &fixed_ss, &source->sample_spec);
2534
2535     pa_tagstruct_put(
2536         t,
2537         PA_TAG_U32, source->index,
2538         PA_TAG_STRING, source->name,
2539         PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2540         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2541         PA_TAG_CHANNEL_MAP, &source->channel_map,
2542         PA_TAG_U32, source->module ? source->module->index : PA_INVALID_INDEX,
2543         PA_TAG_CVOLUME, pa_source_get_volume(source),
2544         PA_TAG_BOOLEAN, pa_source_get_mute(source),
2545         PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX,
2546         PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
2547         PA_TAG_USEC, pa_source_get_latency(source),
2548         PA_TAG_STRING, source->driver,
2549         PA_TAG_U32, source->flags,
2550         PA_TAG_INVALID);
2551
2552     if (c->version >= 13) {
2553         pa_tagstruct_put_proplist(t, source->proplist);
2554         pa_tagstruct_put_usec(t, pa_source_get_requested_latency(source));
2555     }
2556 }
2557
2558
2559 static void client_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_client *client) {
2560     pa_assert(t);
2561     pa_assert(client);
2562
2563     pa_tagstruct_putu32(t, client->index);
2564     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME)));
2565     pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX);
2566     pa_tagstruct_puts(t, client->driver);
2567
2568     if (c->version >= 13)
2569         pa_tagstruct_put_proplist(t, client->proplist);
2570
2571 }
2572
2573 static void module_fill_tagstruct(pa_tagstruct *t, pa_module *module) {
2574     pa_assert(t);
2575     pa_assert(module);
2576
2577     pa_tagstruct_putu32(t, module->index);
2578     pa_tagstruct_puts(t, module->name);
2579     pa_tagstruct_puts(t, module->argument);
2580     pa_tagstruct_putu32(t, module->n_used);
2581     pa_tagstruct_put_boolean(t, module->auto_unload);
2582 }
2583
2584 static void sink_input_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink_input *s) {
2585     pa_sample_spec fixed_ss;
2586     pa_usec_t sink_latency;
2587
2588     pa_assert(t);
2589     pa_sink_input_assert_ref(s);
2590
2591     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2592
2593     pa_tagstruct_putu32(t, s->index);
2594     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2595     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2596     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2597     pa_tagstruct_putu32(t, s->sink->index);
2598     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2599     pa_tagstruct_put_channel_map(t, &s->channel_map);
2600     pa_tagstruct_put_cvolume(t, &s->volume);
2601     pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s, &sink_latency));
2602     pa_tagstruct_put_usec(t, sink_latency);
2603     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s)));
2604     pa_tagstruct_puts(t, s->driver);
2605     if (c->version >= 11)
2606         pa_tagstruct_put_boolean(t, pa_sink_input_get_mute(s));
2607     if (c->version >= 13)
2608         pa_tagstruct_put_proplist(t, s->proplist);
2609 }
2610
2611 static void source_output_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source_output *s) {
2612     pa_sample_spec fixed_ss;
2613     pa_usec_t source_latency;
2614
2615     pa_assert(t);
2616     pa_source_output_assert_ref(s);
2617
2618     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2619
2620     pa_tagstruct_putu32(t, s->index);
2621     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2622     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2623     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2624     pa_tagstruct_putu32(t, s->source->index);
2625     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2626     pa_tagstruct_put_channel_map(t, &s->channel_map);
2627     pa_tagstruct_put_usec(t, pa_source_output_get_latency(s, &source_latency));
2628     pa_tagstruct_put_usec(t, source_latency);
2629     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s)));
2630     pa_tagstruct_puts(t, s->driver);
2631
2632     if (c->version >= 13)
2633         pa_tagstruct_put_proplist(t, s->proplist);
2634 }
2635
2636 static void scache_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_scache_entry *e) {
2637     pa_sample_spec fixed_ss;
2638
2639     pa_assert(t);
2640     pa_assert(e);
2641
2642     if (e->memchunk.memblock)
2643         fixup_sample_spec(c, &fixed_ss, &e->sample_spec);
2644     else
2645         memset(&fixed_ss, 0, sizeof(fixed_ss));
2646
2647     pa_tagstruct_putu32(t, e->index);
2648     pa_tagstruct_puts(t, e->name);
2649     pa_tagstruct_put_cvolume(t, &e->volume);
2650     pa_tagstruct_put_usec(t, e->memchunk.memblock ? pa_bytes_to_usec(e->memchunk.length, &e->sample_spec) : 0);
2651     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2652     pa_tagstruct_put_channel_map(t, &e->channel_map);
2653     pa_tagstruct_putu32(t, e->memchunk.length);
2654     pa_tagstruct_put_boolean(t, e->lazy);
2655     pa_tagstruct_puts(t, e->filename);
2656
2657     if (c->version >= 13)
2658         pa_tagstruct_put_proplist(t, e->proplist);
2659 }
2660
2661 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2662     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2663     uint32_t idx;
2664     pa_sink *sink = NULL;
2665     pa_source *source = NULL;
2666     pa_client *client = NULL;
2667     pa_module *module = NULL;
2668     pa_sink_input *si = NULL;
2669     pa_source_output *so = NULL;
2670     pa_scache_entry *sce = NULL;
2671     const char *name;
2672     pa_tagstruct *reply;
2673
2674     pa_native_connection_assert_ref(c);
2675     pa_assert(t);
2676
2677     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2678         (command != PA_COMMAND_GET_CLIENT_INFO &&
2679          command != PA_COMMAND_GET_MODULE_INFO &&
2680          command != PA_COMMAND_GET_SINK_INPUT_INFO &&
2681          command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
2682          pa_tagstruct_gets(t, &name) < 0) ||
2683         !pa_tagstruct_eof(t)) {
2684         protocol_error(c);
2685         return;
2686     }
2687
2688     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2689     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2690
2691     if (command == PA_COMMAND_GET_SINK_INFO) {
2692         if (idx != PA_INVALID_INDEX)
2693             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2694         else
2695             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2696     } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
2697         if (idx != PA_INVALID_INDEX)
2698             source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2699         else
2700             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2701     } else if (command == PA_COMMAND_GET_CLIENT_INFO)
2702         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
2703     else if (command == PA_COMMAND_GET_MODULE_INFO)
2704         module = pa_idxset_get_by_index(c->protocol->core->modules, idx);
2705     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
2706         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2707     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
2708         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
2709     else {
2710         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO);
2711         if (idx != PA_INVALID_INDEX)
2712             sce = pa_idxset_get_by_index(c->protocol->core->scache, idx);
2713         else
2714             sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0);
2715     }
2716
2717     if (!sink && !source && !client && !module && !si && !so && !sce) {
2718         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2719         return;
2720     }
2721
2722     reply = reply_new(tag);
2723     if (sink)
2724         sink_fill_tagstruct(c, reply, sink);
2725     else if (source)
2726         source_fill_tagstruct(c, reply, source);
2727     else if (client)
2728         client_fill_tagstruct(c, reply, client);
2729     else if (module)
2730         module_fill_tagstruct(reply, module);
2731     else if (si)
2732         sink_input_fill_tagstruct(c, reply, si);
2733     else if (so)
2734         source_output_fill_tagstruct(c, reply, so);
2735     else
2736         scache_fill_tagstruct(c, reply, sce);
2737     pa_pstream_send_tagstruct(c->pstream, reply);
2738 }
2739
2740 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2741     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2742     pa_idxset *i;
2743     uint32_t idx;
2744     void *p;
2745     pa_tagstruct *reply;
2746
2747     pa_native_connection_assert_ref(c);
2748     pa_assert(t);
2749
2750     if (!pa_tagstruct_eof(t)) {
2751         protocol_error(c);
2752         return;
2753     }
2754
2755     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2756
2757     reply = reply_new(tag);
2758
2759     if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2760         i = c->protocol->core->sinks;
2761     else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2762         i = c->protocol->core->sources;
2763     else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2764         i = c->protocol->core->clients;
2765     else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2766         i = c->protocol->core->modules;
2767     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2768         i = c->protocol->core->sink_inputs;
2769     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2770         i = c->protocol->core->source_outputs;
2771     else {
2772         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2773         i = c->protocol->core->scache;
2774     }
2775
2776     if (i) {
2777         for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) {
2778             if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2779                 sink_fill_tagstruct(c, reply, p);
2780             else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2781                 source_fill_tagstruct(c, reply, p);
2782             else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2783                 client_fill_tagstruct(c, reply, p);
2784             else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2785                 module_fill_tagstruct(reply, p);
2786             else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2787                 sink_input_fill_tagstruct(c, reply, p);
2788             else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2789                 source_output_fill_tagstruct(c, reply, p);
2790             else {
2791                 pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2792                 scache_fill_tagstruct(c, reply, p);
2793             }
2794         }
2795     }
2796
2797     pa_pstream_send_tagstruct(c->pstream, reply);
2798 }
2799
2800 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2801     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2802     pa_tagstruct *reply;
2803     char txt[256];
2804     const char *n;
2805     pa_sample_spec fixed_ss;
2806
2807     pa_native_connection_assert_ref(c);
2808     pa_assert(t);
2809
2810     if (!pa_tagstruct_eof(t)) {
2811         protocol_error(c);
2812         return;
2813     }
2814
2815     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2816
2817     reply = reply_new(tag);
2818     pa_tagstruct_puts(reply, PACKAGE_NAME);
2819     pa_tagstruct_puts(reply, PACKAGE_VERSION);
2820     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
2821     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
2822
2823     fixup_sample_spec(c, &fixed_ss, &c->protocol->core->default_sample_spec);
2824     pa_tagstruct_put_sample_spec(reply, &fixed_ss);
2825
2826     n = pa_namereg_get_default_sink_name(c->protocol->core);
2827     pa_tagstruct_puts(reply, n);
2828     n = pa_namereg_get_default_source_name(c->protocol->core);
2829     pa_tagstruct_puts(reply, n);
2830
2831     pa_tagstruct_putu32(reply, c->protocol->core->cookie);
2832
2833     pa_pstream_send_tagstruct(c->pstream, reply);
2834 }
2835
2836 static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) {
2837     pa_tagstruct *t;
2838     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2839
2840     pa_native_connection_assert_ref(c);
2841
2842     t = pa_tagstruct_new(NULL, 0);
2843     pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
2844     pa_tagstruct_putu32(t, (uint32_t) -1);
2845     pa_tagstruct_putu32(t, e);
2846     pa_tagstruct_putu32(t, idx);
2847     pa_pstream_send_tagstruct(c->pstream, t);
2848 }
2849
2850 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2851     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2852     pa_subscription_mask_t m;
2853
2854     pa_native_connection_assert_ref(c);
2855     pa_assert(t);
2856
2857     if (pa_tagstruct_getu32(t, &m) < 0 ||
2858         !pa_tagstruct_eof(t)) {
2859         protocol_error(c);
2860         return;
2861     }
2862
2863     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2864     CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID);
2865
2866     if (c->subscription)
2867         pa_subscription_free(c->subscription);
2868
2869     if (m != 0) {
2870         c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
2871         pa_assert(c->subscription);
2872     } else
2873         c->subscription = NULL;
2874
2875     pa_pstream_send_simple_ack(c->pstream, tag);
2876 }
2877
2878 static void command_set_volume(
2879         pa_pdispatch *pd,
2880         uint32_t command,
2881         uint32_t tag,
2882         pa_tagstruct *t,
2883         void *userdata) {
2884
2885     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2886     uint32_t idx;
2887     pa_cvolume volume;
2888     pa_sink *sink = NULL;
2889     pa_source *source = NULL;
2890     pa_sink_input *si = NULL;
2891     const char *name = NULL;
2892
2893     pa_native_connection_assert_ref(c);
2894     pa_assert(t);
2895
2896     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2897         (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2898         (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2899         pa_tagstruct_get_cvolume(t, &volume) ||
2900         !pa_tagstruct_eof(t)) {
2901         protocol_error(c);
2902         return;
2903     }
2904
2905     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2906     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2907     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
2908
2909     switch (command) {
2910
2911         case PA_COMMAND_SET_SINK_VOLUME:
2912             if (idx != PA_INVALID_INDEX)
2913                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2914             else
2915                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2916             break;
2917
2918         case PA_COMMAND_SET_SOURCE_VOLUME:
2919             if (idx != PA_INVALID_INDEX)
2920                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2921             else
2922                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2923             break;
2924
2925         case PA_COMMAND_SET_SINK_INPUT_VOLUME:
2926             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2927             break;
2928
2929         default:
2930             pa_assert_not_reached();
2931     }
2932
2933     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
2934
2935     if (sink)
2936         pa_sink_set_volume(sink, &volume);
2937     else if (source)
2938         pa_source_set_volume(source, &volume);
2939     else if (si)
2940         pa_sink_input_set_volume(si, &volume);
2941
2942     pa_pstream_send_simple_ack(c->pstream, tag);
2943 }
2944
2945 static void command_set_mute(
2946         pa_pdispatch *pd,
2947         uint32_t command,
2948         uint32_t tag,
2949         pa_tagstruct *t,
2950         void *userdata) {
2951
2952     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2953     uint32_t idx;
2954     pa_bool_t mute;
2955     pa_sink *sink = NULL;
2956     pa_source *source = NULL;
2957     pa_sink_input *si = NULL;
2958     const char *name = NULL;
2959
2960     pa_native_connection_assert_ref(c);
2961     pa_assert(t);
2962
2963     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2964         (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2965         (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2966         pa_tagstruct_get_boolean(t, &mute) ||
2967         !pa_tagstruct_eof(t)) {
2968         protocol_error(c);
2969         return;
2970     }
2971
2972     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2973     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2974
2975     switch (command) {
2976
2977         case PA_COMMAND_SET_SINK_MUTE:
2978
2979             if (idx != PA_INVALID_INDEX)
2980                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2981             else
2982                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2983
2984             break;
2985
2986         case PA_COMMAND_SET_SOURCE_MUTE:
2987             if (idx != PA_INVALID_INDEX)
2988                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2989             else
2990                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2991
2992             break;
2993
2994         case PA_COMMAND_SET_SINK_INPUT_MUTE:
2995             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2996             break;
2997
2998         default:
2999             pa_assert_not_reached();
3000     }
3001
3002     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
3003
3004     if (sink)
3005         pa_sink_set_mute(sink, mute);
3006     else if (source)
3007         pa_source_set_mute(source, mute);
3008     else if (si)
3009         pa_sink_input_set_mute(si, mute);
3010
3011     pa_pstream_send_simple_ack(c->pstream, tag);
3012 }
3013
3014 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3015     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3016     uint32_t idx;
3017     pa_bool_t b;
3018     playback_stream *s;
3019
3020     pa_native_connection_assert_ref(c);
3021     pa_assert(t);
3022
3023     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3024         pa_tagstruct_get_boolean(t, &b) < 0 ||
3025         !pa_tagstruct_eof(t)) {
3026         protocol_error(c);
3027         return;
3028     }
3029
3030     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3031     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3032     s = pa_idxset_get_by_index(c->output_streams, idx);
3033     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3034     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3035
3036     pa_sink_input_cork(s->sink_input, b);
3037     pa_pstream_send_simple_ack(c->pstream, tag);
3038 }
3039
3040 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3041     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3042     uint32_t idx;
3043     playback_stream *s;
3044
3045     pa_native_connection_assert_ref(c);
3046     pa_assert(t);
3047
3048     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3049         !pa_tagstruct_eof(t)) {
3050         protocol_error(c);
3051         return;
3052     }
3053
3054     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3055     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3056     s = pa_idxset_get_by_index(c->output_streams, idx);
3057     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3058     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3059
3060     switch (command) {
3061         case PA_COMMAND_FLUSH_PLAYBACK_STREAM:
3062             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL);
3063             break;
3064
3065         case PA_COMMAND_PREBUF_PLAYBACK_STREAM:
3066             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL);
3067             break;
3068
3069         case PA_COMMAND_TRIGGER_PLAYBACK_STREAM:
3070             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL);
3071             break;
3072
3073         default:
3074             pa_assert_not_reached();
3075     }
3076
3077     pa_pstream_send_simple_ack(c->pstream, tag);
3078 }
3079
3080 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3081     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3082     uint32_t idx;
3083     record_stream *s;
3084     pa_bool_t b;
3085
3086     pa_native_connection_assert_ref(c);
3087     pa_assert(t);
3088
3089     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3090         pa_tagstruct_get_boolean(t, &b) < 0 ||
3091         !pa_tagstruct_eof(t)) {
3092         protocol_error(c);
3093         return;
3094     }
3095
3096     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3097     s = pa_idxset_get_by_index(c->record_streams, idx);
3098     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3099
3100     pa_source_output_cork(s->source_output, b);
3101     pa_memblockq_prebuf_force(s->memblockq);
3102     pa_pstream_send_simple_ack(c->pstream, tag);
3103 }
3104
3105 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3106     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3107     uint32_t idx;
3108     record_stream *s;
3109
3110     pa_native_connection_assert_ref(c);
3111     pa_assert(t);
3112
3113     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3114         !pa_tagstruct_eof(t)) {
3115         protocol_error(c);
3116         return;
3117     }
3118
3119     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3120     s = pa_idxset_get_by_index(c->record_streams, idx);
3121     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3122
3123     pa_memblockq_flush_read(s->memblockq);
3124     pa_pstream_send_simple_ack(c->pstream, tag);
3125 }
3126
3127 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3128     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3129     uint32_t idx;
3130     uint32_t maxlength, tlength, prebuf, minreq, fragsize;
3131     pa_tagstruct *reply;
3132
3133     pa_native_connection_assert_ref(c);
3134     pa_assert(t);
3135
3136     if (pa_tagstruct_getu32(t, &idx) < 0) {
3137         protocol_error(c);
3138         return;
3139     }
3140
3141     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3142
3143     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR) {
3144         playback_stream *s;
3145         pa_bool_t adjust_latency = FALSE;
3146
3147         s = pa_idxset_get_by_index(c->output_streams, idx);
3148         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3149         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3150
3151         if (pa_tagstruct_get(
3152                     t,
3153                     PA_TAG_U32, &maxlength,
3154                     PA_TAG_U32, &tlength,
3155                     PA_TAG_U32, &prebuf,
3156                     PA_TAG_U32, &minreq,
3157                     PA_TAG_INVALID) < 0 ||
3158             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3159             !pa_tagstruct_eof(t)) {
3160             protocol_error(c);
3161             return;
3162         }
3163
3164         fix_playback_buffer_attr_pre(s, adjust_latency, &maxlength, &tlength, &prebuf, &minreq);
3165         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3166         pa_memblockq_set_tlength(s->memblockq, tlength);
3167         pa_memblockq_set_prebuf(s->memblockq, prebuf);
3168         pa_memblockq_set_minreq(s->memblockq, minreq);
3169         fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
3170
3171         reply = reply_new(tag);
3172         pa_tagstruct_putu32(reply, maxlength);
3173         pa_tagstruct_putu32(reply, tlength);
3174         pa_tagstruct_putu32(reply, prebuf);
3175         pa_tagstruct_putu32(reply, minreq);
3176
3177         if (c->version >= 13)
3178             pa_tagstruct_put_usec(reply, s->sink_latency);
3179
3180     } else {
3181         record_stream *s;
3182         pa_bool_t adjust_latency = FALSE;
3183         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR);
3184
3185         s = pa_idxset_get_by_index(c->record_streams, idx);
3186         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3187
3188         if (pa_tagstruct_get(
3189                     t,
3190                     PA_TAG_U32, &maxlength,
3191                     PA_TAG_U32, &fragsize,
3192                     PA_TAG_INVALID) < 0 ||
3193             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3194             !pa_tagstruct_eof(t)) {
3195             protocol_error(c);
3196             return;
3197         }
3198
3199         fix_record_buffer_attr_pre(s, adjust_latency, &maxlength, &fragsize);
3200         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3201         fix_record_buffer_attr_post(s, &maxlength, &fragsize);
3202
3203         reply = reply_new(tag);
3204         pa_tagstruct_putu32(reply, maxlength);
3205         pa_tagstruct_putu32(reply, fragsize);
3206
3207         if (c->version >= 13)
3208             pa_tagstruct_put_usec(reply, s->source_latency);
3209     }
3210
3211     pa_pstream_send_tagstruct(c->pstream, reply);
3212 }
3213
3214 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3215     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3216     uint32_t idx;
3217     uint32_t rate;
3218
3219     pa_native_connection_assert_ref(c);
3220     pa_assert(t);
3221
3222     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3223         pa_tagstruct_getu32(t, &rate) < 0 ||
3224         !pa_tagstruct_eof(t)) {
3225         protocol_error(c);
3226         return;
3227     }
3228
3229     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3230     CHECK_VALIDITY(c->pstream, rate > 0 && rate <= PA_RATE_MAX, tag, PA_ERR_INVALID);
3231
3232     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) {
3233         playback_stream *s;
3234
3235         s = pa_idxset_get_by_index(c->output_streams, idx);
3236         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3237         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3238
3239         pa_sink_input_set_rate(s->sink_input, rate);
3240
3241     } else {
3242         record_stream *s;
3243         pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE);
3244
3245         s = pa_idxset_get_by_index(c->record_streams, idx);
3246         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3247
3248         pa_source_output_set_rate(s->source_output, rate);
3249     }
3250
3251     pa_pstream_send_simple_ack(c->pstream, tag);
3252 }
3253
3254 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3255     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3256     uint32_t idx;
3257     uint32_t mode;
3258     pa_proplist *p;
3259
3260     pa_native_connection_assert_ref(c);
3261     pa_assert(t);
3262
3263     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3264
3265     p = pa_proplist_new();
3266
3267     if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) {
3268
3269         if (pa_tagstruct_getu32(t, &mode) < 0 ||
3270             pa_tagstruct_get_proplist(t, p) < 0 ||
3271             !pa_tagstruct_eof(t)) {
3272             protocol_error(c);
3273             pa_proplist_free(p);
3274             return;
3275         }
3276
3277     } else {
3278
3279         if (pa_tagstruct_getu32(t, &idx) < 0 ||
3280             pa_tagstruct_getu32(t, &mode) < 0 ||
3281             pa_tagstruct_get_proplist(t, p) < 0 ||
3282             !pa_tagstruct_eof(t)) {
3283             protocol_error(c);
3284             pa_proplist_free(p);
3285             return;
3286         }
3287     }
3288
3289     CHECK_VALIDITY(c->pstream, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, tag, PA_ERR_INVALID);
3290
3291     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST) {
3292         playback_stream *s;
3293
3294         s = pa_idxset_get_by_index(c->output_streams, idx);
3295         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3296         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3297
3298         pa_proplist_update(s->sink_input->proplist, mode, p);
3299         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3300
3301     } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) {
3302         record_stream *s;
3303
3304         s = pa_idxset_get_by_index(c->record_streams, idx);
3305         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3306
3307         pa_proplist_update(s->source_output->proplist, mode, p);
3308         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3309     } else {
3310         pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST);
3311
3312         pa_proplist_update(c->client->proplist, mode, p);
3313         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3314     }
3315
3316     pa_pstream_send_simple_ack(c->pstream, tag);
3317 }
3318
3319 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3320     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3321     uint32_t idx;
3322     unsigned changed = 0;
3323     pa_proplist *p;
3324     pa_strlist *l = NULL;
3325
3326     pa_native_connection_assert_ref(c);
3327     pa_assert(t);
3328
3329     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3330
3331     if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) {
3332
3333         if (pa_tagstruct_getu32(t, &idx) < 0) {
3334             protocol_error(c);
3335             return;
3336         }
3337     }
3338
3339     if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3340         playback_stream *s;
3341
3342         s = pa_idxset_get_by_index(c->output_streams, idx);
3343         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3344         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3345
3346         p = s->sink_input->proplist;
3347
3348     } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3349         record_stream *s;
3350
3351         s = pa_idxset_get_by_index(c->record_streams, idx);
3352         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3353
3354         p = s->source_output->proplist;
3355     } else {
3356         pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3357
3358         p = c->client->proplist;
3359     }
3360
3361     for (;;) {
3362         const char *k;
3363
3364         if (pa_tagstruct_gets(t, &k) < 0) {
3365             protocol_error(c);
3366             pa_strlist_free(l);
3367             return;
3368         }
3369
3370         if (!k)
3371             break;
3372
3373         l = pa_strlist_prepend(l, k);
3374     }
3375
3376     if (!pa_tagstruct_eof(t)) {
3377         protocol_error(c);
3378         pa_strlist_free(l);
3379         return;
3380     }
3381
3382     for (;;) {
3383         char *z;
3384
3385         l = pa_strlist_pop(l, &z);
3386
3387         if (!z)
3388             break;
3389
3390         changed += pa_proplist_unset(p, z) >= 0;
3391         pa_xfree(z);
3392     }
3393
3394     pa_pstream_send_simple_ack(c->pstream, tag);
3395
3396     if (changed) {
3397         if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3398             playback_stream *s;
3399
3400             s = pa_idxset_get_by_index(c->output_streams, idx);
3401             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3402
3403         } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3404             record_stream *s;
3405
3406             s = pa_idxset_get_by_index(c->record_streams, idx);
3407             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3408
3409         } else {
3410             pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3411             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3412         }
3413     }
3414 }
3415
3416 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3417     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3418     const char *s;
3419
3420     pa_native_connection_assert_ref(c);
3421     pa_assert(t);
3422
3423     if (pa_tagstruct_gets(t, &s) < 0 ||
3424         !pa_tagstruct_eof(t)) {
3425         protocol_error(c);
3426         return;
3427     }
3428
3429     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3430     CHECK_VALIDITY(c->pstream, !s || (*s && pa_utf8_valid(s)), tag, PA_ERR_INVALID);
3431
3432     pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
3433     pa_pstream_send_simple_ack(c->pstream, tag);
3434 }
3435
3436 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3437     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3438     uint32_t idx;
3439     const char *name;
3440
3441     pa_native_connection_assert_ref(c);
3442     pa_assert(t);
3443
3444     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3445         pa_tagstruct_gets(t, &name) < 0 ||
3446         !pa_tagstruct_eof(t)) {
3447         protocol_error(c);
3448         return;
3449     }
3450
3451     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3452     CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3453
3454     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
3455         playback_stream *s;
3456
3457         s = pa_idxset_get_by_index(c->output_streams, idx);
3458         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3459         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3460
3461         pa_sink_input_set_name(s->sink_input, name);
3462
3463     } else {
3464         record_stream *s;
3465         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_NAME);
3466
3467         s = pa_idxset_get_by_index(c->record_streams, idx);
3468         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3469
3470         pa_source_output_set_name(s->source_output, name);
3471     }
3472
3473     pa_pstream_send_simple_ack(c->pstream, tag);
3474 }
3475
3476 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3477     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3478     uint32_t idx;
3479
3480     pa_native_connection_assert_ref(c);
3481     pa_assert(t);
3482
3483     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3484         !pa_tagstruct_eof(t)) {
3485         protocol_error(c);
3486         return;
3487     }
3488
3489     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3490
3491     if (command == PA_COMMAND_KILL_CLIENT) {
3492         pa_client *client;
3493
3494         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
3495         CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY);
3496
3497         pa_native_connection_ref(c);
3498         pa_client_kill(client);
3499
3500     } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
3501         pa_sink_input *s;
3502
3503         s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3504         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3505
3506         pa_native_connection_ref(c);
3507         pa_sink_input_kill(s);
3508     } else {
3509         pa_source_output *s;
3510
3511         pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
3512
3513         s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3514         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3515
3516         pa_native_connection_ref(c);
3517         pa_source_output_kill(s);
3518     }
3519
3520     pa_pstream_send_simple_ack(c->pstream, tag);
3521     pa_native_connection_unref(c);
3522 }
3523
3524 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3525     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3526     pa_module *m;
3527     const char *name, *argument;
3528     pa_tagstruct *reply;
3529
3530     pa_native_connection_assert_ref(c);
3531     pa_assert(t);
3532
3533     if (pa_tagstruct_gets(t, &name) < 0 ||
3534         pa_tagstruct_gets(t, &argument) < 0 ||
3535         !pa_tagstruct_eof(t)) {
3536         protocol_error(c);
3537         return;
3538     }
3539
3540     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3541     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID);
3542     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3543
3544     if (!(m = pa_module_load(c->protocol->core, name, argument))) {
3545         pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED);
3546         return;
3547     }
3548
3549     reply = reply_new(tag);
3550     pa_tagstruct_putu32(reply, m->index);
3551     pa_pstream_send_tagstruct(c->pstream, reply);
3552 }
3553
3554 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3555     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3556     uint32_t idx;
3557     pa_module *m;
3558
3559     pa_native_connection_assert_ref(c);
3560     pa_assert(t);
3561
3562     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3563         !pa_tagstruct_eof(t)) {
3564         protocol_error(c);
3565         return;
3566     }
3567
3568     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3569     m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3570     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY);
3571
3572     pa_module_unload_request(m, FALSE);
3573     pa_pstream_send_simple_ack(c->pstream, tag);
3574 }
3575
3576 static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3577     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3578     const char *name, *module, *argument;
3579     uint32_t type;
3580     uint32_t idx;
3581     pa_tagstruct *reply;
3582
3583     pa_native_connection_assert_ref(c);
3584     pa_assert(t);
3585
3586     if (pa_tagstruct_gets(t, &name) < 0 ||
3587         pa_tagstruct_getu32(t, &type) < 0 ||
3588         pa_tagstruct_gets(t, &module) < 0 ||
3589         pa_tagstruct_gets(t, &argument) < 0 ||
3590         !pa_tagstruct_eof(t)) {
3591         protocol_error(c);
3592         return;
3593     }
3594
3595     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3596     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3597     CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID);
3598     CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID);
3599     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3600
3601     if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) {
3602         pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
3603         return;
3604     }
3605
3606     reply = reply_new(tag);
3607     pa_tagstruct_putu32(reply, idx);
3608     pa_pstream_send_tagstruct(c->pstream, reply);
3609 }
3610
3611 static void command_remove_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3612     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3613     const char *name = NULL;
3614     uint32_t type, idx = PA_IDXSET_INVALID;
3615     int r;
3616
3617     pa_native_connection_assert_ref(c);
3618     pa_assert(t);
3619
3620     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3621         (pa_tagstruct_gets(t, &name) < 0 ||
3622          pa_tagstruct_getu32(t, &type) < 0)) ||
3623         !pa_tagstruct_eof(t)) {
3624         protocol_error(c);
3625         return;
3626     }
3627
3628     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3629     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3630     CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID);
3631
3632     if (name)
3633         r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3634     else
3635         r = pa_autoload_remove_by_index(c->protocol->core, idx);
3636
3637     CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY);
3638
3639     pa_pstream_send_simple_ack(c->pstream, tag);
3640 }
3641
3642 static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) {
3643     pa_assert(t && e);
3644
3645     pa_tagstruct_putu32(t, e->index);
3646     pa_tagstruct_puts(t, e->name);
3647     pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1);
3648     pa_tagstruct_puts(t, e->module);
3649     pa_tagstruct_puts(t, e->argument);
3650 }
3651
3652 static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3653     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3654     const pa_autoload_entry *a = NULL;
3655     uint32_t type, idx;
3656     const char *name;
3657     pa_tagstruct *reply;
3658
3659     pa_native_connection_assert_ref(c);
3660     pa_assert(t);
3661
3662     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3663         (pa_tagstruct_gets(t, &name) < 0 ||
3664          pa_tagstruct_getu32(t, &type) < 0)) ||
3665         !pa_tagstruct_eof(t)) {
3666         protocol_error(c);
3667         return;
3668     }
3669
3670     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3671     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3672     CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
3673
3674     if (name)
3675         a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3676     else
3677         a = pa_autoload_get_by_index(c->protocol->core, idx);
3678
3679     CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY);
3680
3681     reply = reply_new(tag);
3682     autoload_fill_tagstruct(reply, a);
3683     pa_pstream_send_tagstruct(c->pstream, reply);
3684 }
3685
3686 static void command_get_autoload_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3687     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3688     pa_tagstruct *reply;
3689
3690     pa_native_connection_assert_ref(c);
3691     pa_assert(t);
3692
3693     if (!pa_tagstruct_eof(t)) {
3694         protocol_error(c);
3695         return;
3696     }
3697
3698     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3699
3700     reply = reply_new(tag);
3701
3702     if (c->protocol->core->autoload_hashmap) {
3703         pa_autoload_entry *a;
3704         void *state = NULL;
3705
3706         while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL)))
3707             autoload_fill_tagstruct(reply, a);
3708     }
3709
3710     pa_pstream_send_tagstruct(c->pstream, reply);
3711 }
3712
3713 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3714     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3715     uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX;
3716     const char *name = NULL;
3717
3718     pa_native_connection_assert_ref(c);
3719     pa_assert(t);
3720
3721     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3722         pa_tagstruct_getu32(t, &idx_device) < 0 ||
3723         pa_tagstruct_gets(t, &name) < 0 ||
3724         !pa_tagstruct_eof(t)) {
3725         protocol_error(c);
3726         return;
3727     }
3728
3729     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3730     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3731     CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
3732
3733     if (command == PA_COMMAND_MOVE_SINK_INPUT) {
3734         pa_sink_input *si = NULL;
3735         pa_sink *sink = NULL;
3736
3737         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3738
3739         if (idx_device != PA_INVALID_INDEX)
3740             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device);
3741         else
3742             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3743
3744         CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY);
3745
3746         if (pa_sink_input_move_to(si, sink) < 0) {
3747             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3748             return;
3749         }
3750     } else {
3751         pa_source_output *so = NULL;
3752         pa_source *source;
3753
3754         pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT);
3755
3756         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3757
3758         if (idx_device != PA_INVALID_INDEX)
3759             source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device);
3760         else
3761             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3762
3763         CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY);
3764
3765         if (pa_source_output_move_to(so, source) < 0) {
3766             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3767             return;
3768         }
3769     }
3770
3771     pa_pstream_send_simple_ack(c->pstream, tag);
3772 }
3773
3774 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3775     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3776     uint32_t idx = PA_INVALID_INDEX;
3777     const char *name = NULL;
3778     pa_bool_t b;
3779
3780     pa_native_connection_assert_ref(c);
3781     pa_assert(t);
3782
3783     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3784         pa_tagstruct_gets(t, &name) < 0 ||
3785         pa_tagstruct_get_boolean(t, &b) < 0 ||
3786         !pa_tagstruct_eof(t)) {
3787         protocol_error(c);
3788         return;
3789     }
3790
3791     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3792     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || !*name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
3793
3794     if (command == PA_COMMAND_SUSPEND_SINK) {
3795
3796         if (idx == PA_INVALID_INDEX && name && !*name) {
3797
3798             if (pa_sink_suspend_all(c->protocol->core, b) < 0) {
3799                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3800                 return;
3801             }
3802         } else {
3803             pa_sink *sink = NULL;
3804
3805             if (idx != PA_INVALID_INDEX)
3806                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3807             else
3808                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3809
3810             CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
3811
3812             if (pa_sink_suspend(sink, b) < 0) {
3813                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3814                 return;
3815             }
3816         }
3817     } else {
3818
3819         pa_assert(command == PA_COMMAND_SUSPEND_SOURCE);
3820
3821         if (idx == PA_INVALID_INDEX && name && !*name) {
3822
3823             if (pa_source_suspend_all(c->protocol->core, b) < 0) {
3824                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3825                 return;
3826             }
3827
3828         } else {
3829             pa_source *source;
3830
3831             if (idx != PA_INVALID_INDEX)
3832                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3833             else
3834                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3835
3836             CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
3837
3838             if (pa_source_suspend(source, b) < 0) {
3839                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3840                 return;
3841             }
3842         }
3843     }
3844
3845     pa_pstream_send_simple_ack(c->pstream, tag);
3846 }
3847
3848 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3849     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3850     uint32_t idx = PA_INVALID_INDEX;
3851     const char *name = NULL;
3852     pa_module *m;
3853     pa_native_protocol_ext_cb_t cb;
3854
3855     pa_native_connection_assert_ref(c);
3856     pa_assert(t);
3857
3858     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3859         pa_tagstruct_gets(t, &name) < 0) {
3860         protocol_error(c);
3861         return;
3862     }
3863
3864     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3865     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || !*name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
3866
3867     if (idx != PA_INVALID_INDEX)
3868         m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3869     else {
3870         for (m = pa_idxset_first(c->protocol->core->modules, &idx); m; m = pa_idxset_next(c->protocol->core->modules, &idx))
3871             if (strcmp(name, m->name) == 0)
3872                 break;
3873     }
3874
3875     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
3876     CHECK_VALIDITY(c->pstream, m->load_once || idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3877
3878     cb = (pa_native_protocol_ext_cb_t) pa_hashmap_get(c->protocol->extensions, m);
3879     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
3880
3881     if (cb(c->protocol, m, c, tag, t) < 0)
3882         protocol_error(c);
3883 }
3884
3885
3886 /*** pstream callbacks ***/
3887
3888 static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
3889     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3890
3891     pa_assert(p);
3892     pa_assert(packet);
3893     pa_native_connection_assert_ref(c);
3894
3895     if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) {
3896         pa_log("invalid packet.");
3897         native_connection_unlink(c);
3898     }
3899 }
3900
3901 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) {
3902     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3903     output_stream *stream;
3904
3905     pa_assert(p);
3906     pa_assert(chunk);
3907     pa_native_connection_assert_ref(c);
3908
3909     if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) {
3910         pa_log("client sent block for invalid stream.");
3911         /* Ignoring */
3912         return;
3913     }
3914
3915     if (playback_stream_isinstance(stream)) {
3916         playback_stream *ps = PLAYBACK_STREAM(stream);
3917
3918         if (seek != PA_SEEK_RELATIVE || offset != 0)
3919             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);
3920
3921         pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
3922
3923     } else {
3924         upload_stream *u = UPLOAD_STREAM(stream);
3925         size_t l;
3926
3927         if (!u->memchunk.memblock) {
3928             if (u->length == chunk->length) {
3929                 u->memchunk = *chunk;
3930                 pa_memblock_ref(u->memchunk.memblock);
3931                 u->length = 0;
3932             } else {
3933                 u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length);
3934                 u->memchunk.index = u->memchunk.length = 0;
3935             }
3936         }
3937
3938         pa_assert(u->memchunk.memblock);
3939
3940         l = u->length;
3941         if (l > chunk->length)
3942             l = chunk->length;
3943
3944
3945         if (l > 0) {
3946             void *src, *dst;
3947             dst = pa_memblock_acquire(u->memchunk.memblock);
3948             src = pa_memblock_acquire(chunk->memblock);
3949
3950             memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length,
3951                    (uint8_t*) src+chunk->index, l);
3952
3953             pa_memblock_release(u->memchunk.memblock);
3954             pa_memblock_release(chunk->memblock);
3955
3956             u->memchunk.length += l;
3957             u->length -= l;
3958         }
3959     }
3960 }
3961
3962 static void pstream_die_callback(pa_pstream *p, void *userdata) {
3963     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3964
3965     pa_assert(p);
3966     pa_native_connection_assert_ref(c);
3967
3968     native_connection_unlink(c);
3969     pa_log_info("Connection died.");
3970 }
3971
3972 static void pstream_drain_callback(pa_pstream *p, void *userdata) {
3973     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3974
3975     pa_assert(p);
3976     pa_native_connection_assert_ref(c);
3977
3978     native_connection_send_memblock(c);
3979 }
3980
3981 static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
3982     pa_thread_mq *q;
3983
3984     if (!(q = pa_thread_mq_get()))
3985         pa_pstream_send_revoke(p, block_id);
3986     else
3987         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
3988 }
3989
3990 static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
3991     pa_thread_mq *q;
3992
3993     if (!(q = pa_thread_mq_get()))
3994         pa_pstream_send_release(p, block_id);
3995     else
3996         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
3997 }
3998
3999 /*** client callbacks ***/
4000
4001 static void client_kill_cb(pa_client *c) {
4002     pa_assert(c);
4003
4004     native_connection_unlink(PA_NATIVE_CONNECTION(c->userdata));
4005     pa_log_info("Connection killed.");
4006 }
4007
4008 /*** module entry points ***/
4009
4010 static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
4011     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4012
4013     pa_assert(m);
4014     pa_assert(tv);
4015     pa_native_connection_assert_ref(c);
4016     pa_assert(c->auth_timeout_event == e);
4017
4018     if (!c->authorized) {
4019         native_connection_unlink(c);
4020         pa_log_info("Connection terminated due to authentication timeout.");
4021     }
4022 }
4023
4024 void pa_native_protocol_connect(pa_native_protocol *p, pa_iochannel *io, pa_native_options *o) {
4025     pa_native_connection *c;
4026     char cname[256], pname[128];
4027
4028     pa_assert(p);
4029     pa_assert(io);
4030     pa_assert(o);
4031
4032     if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
4033         pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
4034         pa_iochannel_free(io);
4035         return;
4036     }
4037
4038     c = pa_msgobject_new(pa_native_connection);
4039     c->parent.parent.free = native_connection_free;
4040     c->parent.process_msg = native_connection_process_msg;
4041     c->protocol = p;
4042     c->options = pa_native_options_ref(o);
4043     c->authorized = FALSE;
4044
4045     if (o->auth_anonymous) {
4046         pa_log_info("Client authenticated anonymously.");
4047         c->authorized = TRUE;
4048     }
4049
4050     if (!c->authorized &&
4051         o->auth_ip_acl &&
4052         pa_ip_acl_check(o->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) {
4053
4054         pa_log_info("Client authenticated by IP ACL.");
4055         c->authorized = TRUE;
4056     }
4057
4058     if (!c->authorized) {
4059         struct timeval tv;
4060         pa_gettimeofday(&tv);
4061         tv.tv_sec += AUTH_TIMEOUT;
4062         c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
4063     } else
4064         c->auth_timeout_event = NULL;
4065
4066     c->is_local = pa_iochannel_socket_is_local(io);
4067     c->version = 8;
4068
4069     pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
4070     pa_snprintf(cname, sizeof(cname), "Native client (%s)", pname);
4071     c->client = pa_client_new(p->core, __FILE__, cname);
4072     pa_proplist_sets(c->client->proplist, "native-protocol.peer", pname);
4073     c->client->kill = client_kill_cb;
4074     c->client->userdata = c;
4075     c->client->module = o->module;
4076
4077     c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool);
4078     pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
4079     pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
4080     pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
4081     pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
4082     pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c);
4083     pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c);
4084
4085     c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
4086
4087     c->record_streams = pa_idxset_new(NULL, NULL);
4088     c->output_streams = pa_idxset_new(NULL, NULL);
4089
4090     c->rrobin_index = PA_IDXSET_INVALID;
4091     c->subscription = NULL;
4092
4093     pa_idxset_put(p->connections, c, NULL);
4094
4095 #ifdef HAVE_CREDS
4096     if (pa_iochannel_creds_supported(io))
4097         pa_iochannel_creds_enable(io);
4098 #endif
4099
4100     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_CONNECTION_PUT], c);
4101 }
4102
4103 void pa_native_protocol_disconnect(pa_native_protocol *p, pa_module *m) {
4104     pa_native_connection *c;
4105     void *state = NULL;
4106
4107     pa_assert(p);
4108     pa_assert(m);
4109
4110     while ((c = pa_idxset_iterate(p->connections, &state, NULL)))
4111         if (c->options->module == m)
4112             native_connection_unlink(c);
4113 }
4114
4115 static pa_native_protocol* native_protocol_new(pa_core *c) {
4116     pa_native_protocol *p;
4117     pa_native_hook_t h;
4118
4119     pa_assert(c);
4120
4121     p = pa_xnew(pa_native_protocol, 1);
4122     PA_REFCNT_INIT(p);
4123     p->core = c;
4124     p->connections = pa_idxset_new(NULL, NULL);
4125
4126     p->servers = NULL;
4127
4128     p->extensions = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
4129
4130     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4131         pa_hook_init(&p->hooks[h], p);
4132
4133     pa_assert_se(pa_shared_set(c, "native-protocol", p) >= 0);
4134
4135     return p;
4136 }
4137
4138 pa_native_protocol* pa_native_protocol_get(pa_core *c) {
4139     pa_native_protocol *p;
4140
4141     if ((p = pa_shared_get(c, "native-protocol")))
4142         return pa_native_protocol_ref(p);
4143
4144     return native_protocol_new(c);
4145 }
4146
4147 pa_native_protocol* pa_native_protocol_ref(pa_native_protocol *p) {
4148     pa_assert(p);
4149     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4150
4151     PA_REFCNT_INC(p);
4152
4153     return p;
4154 }
4155
4156 void pa_native_protocol_unref(pa_native_protocol *p) {
4157     pa_native_connection *c;
4158     pa_native_hook_t h;
4159
4160     pa_assert(p);
4161     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4162
4163     if (PA_REFCNT_DEC(p) > 0)
4164         return;
4165
4166     while ((c = pa_idxset_first(p->connections, NULL)))
4167         native_connection_unlink(c);
4168
4169     pa_idxset_free(p->connections, NULL, NULL);
4170
4171     pa_strlist_free(p->servers);
4172
4173     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4174         pa_hook_done(&p->hooks[h]);
4175
4176     pa_hashmap_free(p->extensions, NULL, NULL);
4177
4178     pa_assert_se(pa_shared_remove(p->core, "native-protocol") >= 0);
4179
4180     pa_xfree(p);
4181 }
4182
4183 void pa_native_protocol_add_server_string(pa_native_protocol *p, const char *name) {
4184     pa_assert(p);
4185     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4186     pa_assert(name);
4187
4188     p->servers = pa_strlist_prepend(p->servers, name);
4189
4190     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4191 }
4192
4193 void pa_native_protocol_remove_server_string(pa_native_protocol *p, const char *name) {
4194     pa_assert(p);
4195     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4196     pa_assert(name);
4197
4198     p->servers = pa_strlist_remove(p->servers, name);
4199
4200     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4201 }
4202
4203 pa_hook *pa_native_protocol_hooks(pa_native_protocol *p) {
4204     pa_assert(p);
4205     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4206
4207     return p->hooks;
4208 }
4209
4210 pa_strlist *pa_native_protocol_servers(pa_native_protocol *p) {
4211     pa_assert(p);
4212     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4213
4214     return p->servers;
4215 }
4216
4217 int pa_native_protocol_install_ext(pa_native_protocol *p, pa_module *m, pa_native_protocol_ext_cb_t cb) {
4218     pa_assert(p);
4219     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4220     pa_assert(m);
4221     pa_assert(cb);
4222     pa_assert(!pa_hashmap_get(p->extensions, m));
4223
4224     pa_assert_se(pa_hashmap_put(p->extensions, m, (void*) cb) == 0);
4225     return 0;
4226 }
4227
4228 void pa_native_protocol_remove_ext(pa_native_protocol *p, pa_module *m) {
4229     pa_assert(p);
4230     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4231     pa_assert(m);
4232
4233     pa_assert_se(pa_hashmap_remove(p->extensions, m));
4234 }
4235
4236 pa_native_options* pa_native_options_new(void) {
4237     pa_native_options *o;
4238
4239     o = pa_xnew0(pa_native_options, 1);
4240     PA_REFCNT_INIT(o);
4241
4242     return o;
4243 }
4244
4245 pa_native_options* pa_native_options_ref(pa_native_options *o) {
4246     pa_assert(o);
4247     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4248
4249     PA_REFCNT_INC(o);
4250
4251     return o;
4252 }
4253
4254 void pa_native_options_unref(pa_native_options *o) {
4255     pa_assert(o);
4256     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4257
4258     if (PA_REFCNT_DEC(o) > 0)
4259         return;
4260
4261     pa_xfree(o->auth_group);
4262
4263     if (o->auth_ip_acl)
4264         pa_ip_acl_free(o->auth_ip_acl);
4265
4266     if (o->auth_cookie)
4267         pa_auth_cookie_unref(o->auth_cookie);
4268
4269     pa_xfree(o);
4270 }
4271
4272 int pa_native_options_parse(pa_native_options *o, pa_core *c, pa_modargs *ma) {
4273     pa_bool_t enabled;
4274     const char *acl;
4275
4276     pa_assert(o);
4277     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4278     pa_assert(ma);
4279
4280     if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &o->auth_anonymous) < 0) {
4281         pa_log("auth-anonymous= expects a boolean argument.");
4282         return -1;
4283     }
4284
4285     enabled = TRUE;
4286     if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &enabled) < 0) {
4287         pa_log("auth-group-enabled= expects a boolean argument.");
4288         return -1;
4289     }
4290
4291     pa_xfree(o->auth_group);
4292     o->auth_group = enabled ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL;
4293
4294 #ifndef HAVE_CREDS
4295     if (o->auth_group)
4296         pa_log_warn("Authentication group configured, but not available on local system. Ignoring.");
4297 #endif
4298
4299     if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) {
4300         pa_ip_acl *ipa;
4301
4302         if (!(o->auth_ip_acl = pa_ip_acl_new(acl))) {
4303             pa_log("Failed to parse IP ACL '%s'", acl);
4304             return -1;
4305         }
4306
4307         if (o->auth_ip_acl)
4308             pa_ip_acl_free(o->auth_ip_acl);
4309
4310         o->auth_ip_acl = ipa;
4311     }
4312
4313     enabled = TRUE;
4314     if (pa_modargs_get_value_boolean(ma, "auth-cookie-enabled", &enabled) < 0) {
4315         pa_log("auth-cookie-enabled= expects a boolean argument.");
4316         return -1;
4317     }
4318
4319     if (o->auth_cookie)
4320         pa_auth_cookie_unref(o->auth_cookie);
4321
4322     if (enabled) {
4323         const char *cn;
4324
4325         /* The new name for this is 'auth-cookie', for compat reasons
4326          * we check the old name too */
4327         if (!(cn = pa_modargs_get_value(ma, "auth-cookie", NULL)))
4328             if (!(cn = pa_modargs_get_value(ma, "cookie", NULL)))
4329                 cn = PA_NATIVE_COOKIE_FILE;
4330
4331         if (!(o->auth_cookie = pa_auth_cookie_get(c, cn, PA_NATIVE_COOKIE_LENGTH)))
4332             return -1;
4333
4334     } else
4335           o->auth_cookie = NULL;
4336
4337     return 0;
4338 }
4339
4340 pa_pstream* pa_native_connection_get_pstream(pa_native_connection *c) {
4341     pa_native_connection_assert_ref(c);
4342
4343     return c->pstream;
4344 }