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(missing);
 887     pa_assert(p);
 888
 889     /* Find syncid group */
 890     for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) {
 891
 892         if (!playback_stream_isinstance(ssync))
 893             continue;
 894
 895         if (ssync->syncid == syncid)
 896             break;
 897     }
 898
 899     /* Synced streams must connect to the same sink */
 900     if (ssync) {
 901
 902         if (!sink)
 903             sink = ssync->sink_input->sink;
 904         else if (sink != ssync->sink_input->sink)
 905             return NULL;
 906     }
 907
 908     pa_sink_input_new_data_init(&data);
 909
 910     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
 911     pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
 912     data.driver = __FILE__;
 913     data.module = c->options->module;
 914     data.client = c->client;
 915     data.sink = sink;
 916     pa_sink_input_new_data_set_sample_spec(&data, ss);
 917     pa_sink_input_new_data_set_channel_map(&data, map);
 918     if (volume)
 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     pa_bool_t volume_set = TRUE;
1600
1601     pa_native_connection_assert_ref(c);
1602     pa_assert(t);
1603
1604     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1605         pa_tagstruct_get(
1606                 t,
1607                 PA_TAG_SAMPLE_SPEC, &ss,
1608                 PA_TAG_CHANNEL_MAP, &map,
1609                 PA_TAG_U32, &sink_index,
1610                 PA_TAG_STRING, &sink_name,
1611                 PA_TAG_U32, &maxlength,
1612                 PA_TAG_BOOLEAN, &corked,
1613                 PA_TAG_U32, &tlength,
1614                 PA_TAG_U32, &prebuf,
1615                 PA_TAG_U32, &minreq,
1616                 PA_TAG_U32, &syncid,
1617                 PA_TAG_CVOLUME, &volume,
1618                 PA_TAG_INVALID) < 0) {
1619
1620         protocol_error(c);
1621         return;
1622     }
1623
1624     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1625     CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID);
1626     CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID);
1627     CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1628     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1629     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1630     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
1631     CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID);
1632
1633     p = pa_proplist_new();
1634
1635     if (name)
1636         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1637
1638     if (c->version >= 12)  {
1639         /* Since 0.9.8 the user can ask for a couple of additional flags */
1640
1641         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1642             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1643             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1644             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1645             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1646             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1647             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1648
1649             protocol_error(c);
1650             pa_proplist_free(p);
1651             return;
1652         }
1653     }
1654
1655     if (c->version >= 13) {
1656
1657         if (pa_tagstruct_get_boolean(t, &muted) < 0 ||
1658             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1659             pa_tagstruct_get_proplist(t, p) < 0) {
1660             protocol_error(c);
1661             pa_proplist_free(p);
1662             return;
1663         }
1664     }
1665
1666     if (c->version >= 14) {
1667
1668         if (pa_tagstruct_get_boolean(t, &volume_set) < 0) {
1669             protocol_error(c);
1670             pa_proplist_free(p);
1671             return;
1672         }
1673     }
1674
1675     if (!pa_tagstruct_eof(t)) {
1676         protocol_error(c);
1677         pa_proplist_free(p);
1678         return;
1679     }
1680
1681     if (sink_index != PA_INVALID_INDEX) {
1682
1683         if (!(sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index))) {
1684             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1685             pa_proplist_free(p);
1686             return;
1687         }
1688
1689     } else if (sink_name) {
1690
1691         if (!(sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1))) {
1692             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1693             pa_proplist_free(p);
1694             return;
1695         }
1696     }
1697
1698     flags =
1699         (corked ?  PA_SINK_INPUT_START_CORKED : 0) |
1700         (no_remap ?  PA_SINK_INPUT_NO_REMAP : 0) |
1701         (no_remix ?  PA_SINK_INPUT_NO_REMIX : 0) |
1702         (fix_format ?  PA_SINK_INPUT_FIX_FORMAT : 0) |
1703         (fix_rate ?  PA_SINK_INPUT_FIX_RATE : 0) |
1704         (fix_channels ?  PA_SINK_INPUT_FIX_CHANNELS : 0) |
1705         (no_move ?  PA_SINK_INPUT_DONT_MOVE : 0) |
1706         (variable_rate ?  PA_SINK_INPUT_VARIABLE_RATE : 0);
1707
1708     s = playback_stream_new(c, sink, &ss, &map, &maxlength, &tlength, &prebuf, &minreq, volume_set ? &volume : NULL, muted, syncid, &missing, flags, p, adjust_latency);
1709     pa_proplist_free(p);
1710
1711     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
1712
1713     reply = reply_new(tag);
1714     pa_tagstruct_putu32(reply, s->index);
1715     pa_assert(s->sink_input);
1716     pa_tagstruct_putu32(reply, s->sink_input->index);
1717     pa_tagstruct_putu32(reply, missing);
1718
1719 /*     pa_log("initial request is %u", missing); */
1720
1721     if (c->version >= 9) {
1722         /* Since 0.9.0 we support sending the buffer metrics back to the client */
1723
1724         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1725         pa_tagstruct_putu32(reply, (uint32_t) tlength);
1726         pa_tagstruct_putu32(reply, (uint32_t) prebuf);
1727         pa_tagstruct_putu32(reply, (uint32_t) minreq);
1728     }
1729
1730     if (c->version >= 12) {
1731         /* Since 0.9.8 we support sending the chosen sample
1732          * spec/channel map/device/suspend status back to the
1733          * client */
1734
1735         pa_tagstruct_put_sample_spec(reply, &ss);
1736         pa_tagstruct_put_channel_map(reply, &map);
1737
1738         pa_tagstruct_putu32(reply, s->sink_input->sink->index);
1739         pa_tagstruct_puts(reply, s->sink_input->sink->name);
1740
1741         pa_tagstruct_put_boolean(reply, pa_sink_get_state(s->sink_input->sink) == PA_SINK_SUSPENDED);
1742     }
1743
1744     if (c->version >= 13)
1745         pa_tagstruct_put_usec(reply, s->sink_latency);
1746
1747     pa_pstream_send_tagstruct(c->pstream, reply);
1748 }
1749
1750 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1751     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1752     uint32_t channel;
1753
1754     pa_native_connection_assert_ref(c);
1755     pa_assert(t);
1756
1757     if (pa_tagstruct_getu32(t, &channel) < 0 ||
1758         !pa_tagstruct_eof(t)) {
1759         protocol_error(c);
1760         return;
1761     }
1762
1763     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1764
1765     switch (command) {
1766
1767         case PA_COMMAND_DELETE_PLAYBACK_STREAM: {
1768             playback_stream *s;
1769             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) {
1770                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1771                 return;
1772             }
1773
1774             playback_stream_unlink(s);
1775             break;
1776         }
1777
1778         case PA_COMMAND_DELETE_RECORD_STREAM: {
1779             record_stream *s;
1780             if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
1781                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1782                 return;
1783             }
1784
1785             record_stream_unlink(s);
1786             break;
1787         }
1788
1789         case PA_COMMAND_DELETE_UPLOAD_STREAM: {
1790             upload_stream *s;
1791
1792             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !upload_stream_isinstance(s)) {
1793                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1794                 return;
1795             }
1796
1797             upload_stream_unlink(s);
1798             break;
1799         }
1800
1801         default:
1802             pa_assert_not_reached();
1803     }
1804
1805     pa_pstream_send_simple_ack(c->pstream, tag);
1806 }
1807
1808 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1809     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1810     record_stream *s;
1811     uint32_t maxlength, fragment_size;
1812     uint32_t source_index;
1813     const char *name = NULL, *source_name;
1814     pa_sample_spec ss;
1815     pa_channel_map map;
1816     pa_tagstruct *reply;
1817     pa_source *source = NULL;
1818     pa_bool_t
1819         corked = FALSE,
1820         no_remap = FALSE,
1821         no_remix = FALSE,
1822         fix_format = FALSE,
1823         fix_rate = FALSE,
1824         fix_channels = FALSE,
1825         no_move = FALSE,
1826         variable_rate = FALSE,
1827         adjust_latency = FALSE,
1828         peak_detect = FALSE;
1829     pa_source_output_flags_t flags = 0;
1830     pa_proplist *p;
1831     uint32_t direct_on_input_idx = PA_INVALID_INDEX;
1832     pa_sink_input *direct_on_input = NULL;
1833
1834     pa_native_connection_assert_ref(c);
1835     pa_assert(t);
1836
1837     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1838         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
1839         pa_tagstruct_get_channel_map(t, &map) < 0 ||
1840         pa_tagstruct_getu32(t, &source_index) < 0 ||
1841         pa_tagstruct_gets(t, &source_name) < 0 ||
1842         pa_tagstruct_getu32(t, &maxlength) < 0 ||
1843         pa_tagstruct_get_boolean(t, &corked) < 0 ||
1844         pa_tagstruct_getu32(t, &fragment_size) < 0) {
1845         protocol_error(c);
1846         return;
1847     }
1848
1849     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1850     CHECK_VALIDITY(c->pstream, !source_name || pa_namereg_is_valid_name(source_name), tag, PA_ERR_INVALID);
1851     CHECK_VALIDITY(c->pstream, source_index == PA_INVALID_INDEX || !source_name, tag, PA_ERR_INVALID);
1852     CHECK_VALIDITY(c->pstream, !source_name || source_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1853     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1854     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1855     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
1856
1857     p = pa_proplist_new();
1858
1859     if (name)
1860         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1861
1862     if (c->version >= 12)  {
1863         /* Since 0.9.8 the user can ask for a couple of additional flags */
1864
1865         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1866             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1867             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1868             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1869             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1870             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1871             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1872
1873             protocol_error(c);
1874             pa_proplist_free(p);
1875             return;
1876         }
1877     }
1878
1879     if (c->version >= 13) {
1880
1881         if (pa_tagstruct_get_boolean(t, &peak_detect) < 0 ||
1882             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1883             pa_tagstruct_get_proplist(t, p) < 0 ||
1884             pa_tagstruct_getu32(t, &direct_on_input_idx) < 0) {
1885             protocol_error(c);
1886             pa_proplist_free(p);
1887             return;
1888         }
1889     }
1890
1891     if (!pa_tagstruct_eof(t)) {
1892         protocol_error(c);
1893         pa_proplist_free(p);
1894         return;
1895     }
1896
1897     if (source_index != PA_INVALID_INDEX) {
1898
1899         if (!(source = pa_idxset_get_by_index(c->protocol->core->sources, source_index))) {
1900             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1901             pa_proplist_free(p);
1902             return;
1903         }
1904
1905     } else if (source_name) {
1906
1907         if (!(source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1))) {
1908             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1909             pa_proplist_free(p);
1910             return;
1911         }
1912     }
1913
1914     if (direct_on_input_idx != PA_INVALID_INDEX) {
1915
1916         if (!(direct_on_input = pa_idxset_get_by_index(c->protocol->core->sink_inputs, direct_on_input_idx))) {
1917             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1918             pa_proplist_free(p);
1919             return;
1920         }
1921     }
1922
1923     flags =
1924         (corked ?  PA_SOURCE_OUTPUT_START_CORKED : 0) |
1925         (no_remap ?  PA_SOURCE_OUTPUT_NO_REMAP : 0) |
1926         (no_remix ?  PA_SOURCE_OUTPUT_NO_REMIX : 0) |
1927         (fix_format ?  PA_SOURCE_OUTPUT_FIX_FORMAT : 0) |
1928         (fix_rate ?  PA_SOURCE_OUTPUT_FIX_RATE : 0) |
1929         (fix_channels ?  PA_SOURCE_OUTPUT_FIX_CHANNELS : 0) |
1930         (no_move ?  PA_SOURCE_OUTPUT_DONT_MOVE : 0) |
1931         (variable_rate ?  PA_SOURCE_OUTPUT_VARIABLE_RATE : 0);
1932
1933     s = record_stream_new(c, source, &ss, &map, peak_detect, &maxlength, &fragment_size, flags, p, adjust_latency, direct_on_input);
1934     pa_proplist_free(p);
1935
1936     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
1937
1938     reply = reply_new(tag);
1939     pa_tagstruct_putu32(reply, s->index);
1940     pa_assert(s->source_output);
1941     pa_tagstruct_putu32(reply, s->source_output->index);
1942
1943     if (c->version >= 9) {
1944         /* Since 0.9 we support sending the buffer metrics back to the client */
1945
1946         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1947         pa_tagstruct_putu32(reply, (uint32_t) fragment_size);
1948     }
1949
1950     if (c->version >= 12) {
1951         /* Since 0.9.8 we support sending the chosen sample
1952          * spec/channel map/device/suspend status back to the
1953          * client */
1954
1955         pa_tagstruct_put_sample_spec(reply, &ss);
1956         pa_tagstruct_put_channel_map(reply, &map);
1957
1958         pa_tagstruct_putu32(reply, s->source_output->source->index);
1959         pa_tagstruct_puts(reply, s->source_output->source->name);
1960
1961         pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_SUSPENDED);
1962     }
1963
1964     if (c->version >= 13)
1965         pa_tagstruct_put_usec(reply, s->source_latency);
1966
1967     pa_pstream_send_tagstruct(c->pstream, reply);
1968 }
1969
1970 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1971     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1972     int ret;
1973
1974     pa_native_connection_assert_ref(c);
1975     pa_assert(t);
1976
1977     if (!pa_tagstruct_eof(t)) {
1978         protocol_error(c);
1979         return;
1980     }
1981
1982     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1983     ret = pa_core_exit(c->protocol->core, FALSE, 0);
1984     CHECK_VALIDITY(c->pstream, ret >= 0, tag, PA_ERR_ACCESS);
1985
1986     pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
1987 }
1988
1989 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1990     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1991     const void*cookie;
1992     pa_tagstruct *reply;
1993     pa_bool_t shm_on_remote, do_shm;
1994
1995     pa_native_connection_assert_ref(c);
1996     pa_assert(t);
1997
1998     if (pa_tagstruct_getu32(t, &c->version) < 0 ||
1999         pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
2000         !pa_tagstruct_eof(t)) {
2001         protocol_error(c);
2002         return;
2003     }
2004
2005     /* Minimum supported version */
2006     if (c->version < 8) {
2007         pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION);
2008         return;
2009     }
2010
2011     /* Starting with protocol version 13 the MSB of the version tag
2012        reflects if shm is available for this pa_native_connection or
2013        not. */
2014     if (c->version >= 13) {
2015         shm_on_remote = !!(c->version & 0x80000000U);
2016         c->version &= 0x7FFFFFFFU;
2017     }
2018
2019     pa_log_debug("Protocol version: remote %u, local %u", c->version, PA_PROTOCOL_VERSION);
2020
2021     pa_proplist_setf(c->client->proplist, "native-protocol.version", "%u", c->version);
2022
2023     if (!c->authorized) {
2024         pa_bool_t success = FALSE;
2025
2026 #ifdef HAVE_CREDS
2027         const pa_creds *creds;
2028
2029         if ((creds = pa_pdispatch_creds(pd))) {
2030             if (creds->uid == getuid())
2031                 success = TRUE;
2032             else if (c->options->auth_group) {
2033                 int r;
2034                 gid_t gid;
2035
2036                 if ((gid = pa_get_gid_of_group(c->options->auth_group)) == (gid_t) -1)
2037                     pa_log_warn("Failed to get GID of group '%s'", c->options->auth_group);
2038                 else if (gid == creds->gid)
2039                     success = TRUE;
2040
2041                 if (!success) {
2042                     if ((r = pa_uid_in_group(creds->uid, c->options->auth_group)) < 0)
2043                         pa_log_warn("Failed to check group membership.");
2044                     else if (r > 0)
2045                         success = TRUE;
2046                 }
2047             }
2048
2049             pa_log_info("Got credentials: uid=%lu gid=%lu success=%i",
2050                         (unsigned long) creds->uid,
2051                         (unsigned long) creds->gid,
2052                         (int) success);
2053         }
2054 #endif
2055
2056         if (!success && c->options->auth_cookie) {
2057             const uint8_t *ac;
2058
2059             if ((ac = pa_auth_cookie_read(c->options->auth_cookie, PA_NATIVE_COOKIE_LENGTH)))
2060                 if (memcmp(ac, cookie, PA_NATIVE_COOKIE_LENGTH) == 0)
2061                     success = TRUE;
2062         }
2063
2064         if (!success) {
2065             pa_log_warn("Denied access to client with invalid authorization data.");
2066             pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS);
2067             return;
2068         }
2069
2070         c->authorized = TRUE;
2071         if (c->auth_timeout_event) {
2072             c->protocol->core->mainloop->time_free(c->auth_timeout_event);
2073             c->auth_timeout_event = NULL;
2074         }
2075     }
2076
2077     /* Enable shared memory support if possible */
2078     do_shm =
2079         pa_mempool_is_shared(c->protocol->core->mempool) &&
2080         c->is_local;
2081
2082     pa_log_debug("SHM possible: %s", pa_yes_no(do_shm));
2083
2084     if (do_shm)
2085         if (c->version < 10 || (c->version >= 13 && !shm_on_remote))
2086             do_shm = FALSE;
2087
2088     if (do_shm) {
2089         /* Only enable SHM if both sides are owned by the same
2090          * user. This is a security measure because otherwise data
2091          * private to the user might leak. */
2092
2093         const pa_creds *creds;
2094         if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid)
2095             do_shm = FALSE;
2096     }
2097
2098     pa_log_debug("Negotiated SHM: %s", pa_yes_no(do_shm));
2099     pa_pstream_enable_shm(c->pstream, do_shm);
2100
2101     reply = reply_new(tag);
2102     pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION | (do_shm ? 0x80000000 : 0));
2103
2104 #ifdef HAVE_CREDS
2105 {
2106     /* SHM support is only enabled after both sides made sure they are the same user. */
2107
2108     pa_creds ucred;
2109
2110     ucred.uid = getuid();
2111     ucred.gid = getgid();
2112
2113     pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred);
2114 }
2115 #else
2116     pa_pstream_send_tagstruct(c->pstream, reply);
2117 #endif
2118 }
2119
2120 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2121     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2122     const char *name = NULL;
2123     pa_proplist *p;
2124     pa_tagstruct *reply;
2125
2126     pa_native_connection_assert_ref(c);
2127     pa_assert(t);
2128
2129     p = pa_proplist_new();
2130
2131     if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) ||
2132         (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2133         !pa_tagstruct_eof(t)) {
2134
2135         protocol_error(c);
2136         pa_proplist_free(p);
2137         return;
2138     }
2139
2140     if (name)
2141         if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) {
2142             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
2143             pa_proplist_free(p);
2144             return;
2145         }
2146
2147     pa_proplist_update(c->client->proplist, PA_UPDATE_REPLACE, p);
2148     pa_proplist_free(p);
2149
2150     pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
2151
2152     reply = reply_new(tag);
2153
2154     if (c->version >= 13)
2155         pa_tagstruct_putu32(reply, c->client->index);
2156
2157     pa_pstream_send_tagstruct(c->pstream, reply);
2158 }
2159
2160 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2161     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2162     const char *name;
2163     uint32_t idx = PA_IDXSET_INVALID;
2164
2165     pa_native_connection_assert_ref(c);
2166     pa_assert(t);
2167
2168     if (pa_tagstruct_gets(t, &name) < 0 ||
2169         !pa_tagstruct_eof(t)) {
2170         protocol_error(c);
2171         return;
2172     }
2173
2174     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2175     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2176
2177     if (command == PA_COMMAND_LOOKUP_SINK) {
2178         pa_sink *sink;
2179         if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1)))
2180             idx = sink->index;
2181     } else {
2182         pa_source *source;
2183         pa_assert(command == PA_COMMAND_LOOKUP_SOURCE);
2184         if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1)))
2185             idx = source->index;
2186     }
2187
2188     if (idx == PA_IDXSET_INVALID)
2189         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2190     else {
2191         pa_tagstruct *reply;
2192         reply = reply_new(tag);
2193         pa_tagstruct_putu32(reply, idx);
2194         pa_pstream_send_tagstruct(c->pstream, reply);
2195     }
2196 }
2197
2198 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2199     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2200     uint32_t idx;
2201     playback_stream *s;
2202
2203     pa_native_connection_assert_ref(c);
2204     pa_assert(t);
2205
2206     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2207         !pa_tagstruct_eof(t)) {
2208         protocol_error(c);
2209         return;
2210     }
2211
2212     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2213     s = pa_idxset_get_by_index(c->output_streams, idx);
2214     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2215     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2216
2217     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);
2218 }
2219
2220 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2221     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2222     pa_tagstruct *reply;
2223     const pa_mempool_stat *stat;
2224
2225     pa_native_connection_assert_ref(c);
2226     pa_assert(t);
2227
2228     if (!pa_tagstruct_eof(t)) {
2229         protocol_error(c);
2230         return;
2231     }
2232
2233     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2234
2235     stat = pa_mempool_get_stat(c->protocol->core->mempool);
2236
2237     reply = reply_new(tag);
2238     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated));
2239     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size));
2240     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated));
2241     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size));
2242     pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
2243     pa_pstream_send_tagstruct(c->pstream, reply);
2244 }
2245
2246 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2247     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2248     pa_tagstruct *reply;
2249     playback_stream *s;
2250     struct timeval tv, now;
2251     uint32_t idx;
2252     pa_usec_t latency;
2253
2254     pa_native_connection_assert_ref(c);
2255     pa_assert(t);
2256
2257     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2258         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2259         !pa_tagstruct_eof(t)) {
2260         protocol_error(c);
2261         return;
2262     }
2263
2264     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2265     s = pa_idxset_get_by_index(c->output_streams, idx);
2266     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2267     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2268     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)
2269
2270     reply = reply_new(tag);
2271
2272     latency = pa_sink_get_latency(s->sink_input->sink);
2273     latency += pa_bytes_to_usec(s->render_memblockq_length, &s->sink_input->sample_spec);
2274
2275     pa_tagstruct_put_usec(reply, latency);
2276
2277     pa_tagstruct_put_usec(reply, 0);
2278     pa_tagstruct_put_boolean(reply, s->sink_input->thread_info.playing_for > 0);
2279     pa_tagstruct_put_timeval(reply, &tv);
2280     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2281     pa_tagstruct_puts64(reply, s->write_index);
2282     pa_tagstruct_puts64(reply, s->read_index);
2283
2284     if (c->version >= 13) {
2285         pa_tagstruct_putu64(reply, s->sink_input->thread_info.underrun_for);
2286         pa_tagstruct_putu64(reply, s->sink_input->thread_info.playing_for);
2287     }
2288
2289     pa_pstream_send_tagstruct(c->pstream, reply);
2290 }
2291
2292 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2293     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2294     pa_tagstruct *reply;
2295     record_stream *s;
2296     struct timeval tv, now;
2297     uint32_t idx;
2298
2299     pa_native_connection_assert_ref(c);
2300     pa_assert(t);
2301
2302     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2303         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2304         !pa_tagstruct_eof(t)) {
2305         protocol_error(c);
2306         return;
2307     }
2308
2309     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2310     s = pa_idxset_get_by_index(c->record_streams, idx);
2311     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2312
2313     reply = reply_new(tag);
2314     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
2315     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
2316     pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_RUNNING);
2317     pa_tagstruct_put_timeval(reply, &tv);
2318     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2319     pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
2320     pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
2321     pa_pstream_send_tagstruct(c->pstream, reply);
2322 }
2323
2324 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2325     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2326     upload_stream *s;
2327     uint32_t length;
2328     const char *name = NULL;
2329     pa_sample_spec ss;
2330     pa_channel_map map;
2331     pa_tagstruct *reply;
2332     pa_proplist *p;
2333
2334     pa_native_connection_assert_ref(c);
2335     pa_assert(t);
2336
2337     if (pa_tagstruct_gets(t, &name) < 0 ||
2338         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
2339         pa_tagstruct_get_channel_map(t, &map) < 0 ||
2340         pa_tagstruct_getu32(t, &length) < 0) {
2341         protocol_error(c);
2342         return;
2343     }
2344
2345     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2346     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
2347     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
2348     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
2349     CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID);
2350     CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE);
2351
2352     p = pa_proplist_new();
2353
2354     if (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) {
2355         protocol_error(c);
2356         pa_proplist_free(p);
2357         return;
2358     }
2359
2360     if (c->version < 13)
2361         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2362     else if (!name)
2363         if (!(name = pa_proplist_gets(p, PA_PROP_EVENT_ID)))
2364             name = pa_proplist_gets(p, PA_PROP_MEDIA_NAME);
2365
2366     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2367
2368     s = upload_stream_new(c, &ss, &map, name, length, p);
2369     pa_proplist_free(p);
2370
2371     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
2372
2373     reply = reply_new(tag);
2374     pa_tagstruct_putu32(reply, s->index);
2375     pa_tagstruct_putu32(reply, length);
2376     pa_pstream_send_tagstruct(c->pstream, reply);
2377 }
2378
2379 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2380     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2381     uint32_t channel;
2382     upload_stream *s;
2383     uint32_t idx;
2384
2385     pa_native_connection_assert_ref(c);
2386     pa_assert(t);
2387
2388     if (pa_tagstruct_getu32(t, &channel) < 0 ||
2389         !pa_tagstruct_eof(t)) {
2390         protocol_error(c);
2391         return;
2392     }
2393
2394     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2395
2396     s = pa_idxset_get_by_index(c->output_streams, channel);
2397     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2398     CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2399
2400     if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, s->proplist, &idx) < 0)
2401         pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL);
2402     else
2403         pa_pstream_send_simple_ack(c->pstream, tag);
2404
2405     upload_stream_unlink(s);
2406 }
2407
2408 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2409     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2410     uint32_t sink_index;
2411     pa_volume_t volume;
2412     pa_sink *sink;
2413     const char *name, *sink_name;
2414     uint32_t idx;
2415     pa_proplist *p;
2416     pa_tagstruct *reply;
2417
2418     pa_native_connection_assert_ref(c);
2419     pa_assert(t);
2420
2421     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2422
2423     if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
2424         pa_tagstruct_gets(t, &sink_name) < 0 ||
2425         pa_tagstruct_getu32(t, &volume) < 0 ||
2426         pa_tagstruct_gets(t, &name) < 0) {
2427         protocol_error(c);
2428         return;
2429     }
2430
2431     CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID);
2432     CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID);
2433     CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2434     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2435
2436     if (sink_index != PA_INVALID_INDEX)
2437         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
2438     else
2439         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
2440
2441     CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
2442
2443     p = pa_proplist_new();
2444
2445     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2446         !pa_tagstruct_eof(t)) {
2447         protocol_error(c);
2448         pa_proplist_free(p);
2449         return;
2450     }
2451
2452     pa_proplist_update(p, PA_UPDATE_MERGE, c->client->proplist);
2453
2454     if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) {
2455         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2456         pa_proplist_free(p);
2457         return;
2458     }
2459
2460     pa_proplist_free(p);
2461
2462     reply = reply_new(tag);
2463
2464     if (c->version >= 13)
2465         pa_tagstruct_putu32(reply, idx);
2466
2467     pa_pstream_send_tagstruct(c->pstream, reply);
2468 }
2469
2470 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2471     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2472     const char *name;
2473
2474     pa_native_connection_assert_ref(c);
2475     pa_assert(t);
2476
2477     if (pa_tagstruct_gets(t, &name) < 0 ||
2478         !pa_tagstruct_eof(t)) {
2479         protocol_error(c);
2480         return;
2481     }
2482
2483     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2484     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2485
2486     if (pa_scache_remove_item(c->protocol->core, name) < 0) {
2487         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2488         return;
2489     }
2490
2491     pa_pstream_send_simple_ack(c->pstream, tag);
2492 }
2493
2494 static void fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) {
2495     pa_assert(c);
2496     pa_assert(fixed);
2497     pa_assert(original);
2498
2499     *fixed = *original;
2500
2501     if (c->version < 12) {
2502         /* Before protocol version 12 we didn't support S32 samples,
2503          * so we need to lie about this to the client */
2504
2505         if (fixed->format == PA_SAMPLE_S32LE)
2506             fixed->format = PA_SAMPLE_FLOAT32LE;
2507         if (fixed->format == PA_SAMPLE_S32BE)
2508             fixed->format = PA_SAMPLE_FLOAT32BE;
2509     }
2510 }
2511
2512 static void sink_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink *sink) {
2513     pa_sample_spec fixed_ss;
2514
2515     pa_assert(t);
2516     pa_sink_assert_ref(sink);
2517
2518     fixup_sample_spec(c, &fixed_ss, &sink->sample_spec);
2519
2520     pa_tagstruct_put(
2521         t,
2522         PA_TAG_U32, sink->index,
2523         PA_TAG_STRING, sink->name,
2524         PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2525         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2526         PA_TAG_CHANNEL_MAP, &sink->channel_map,
2527         PA_TAG_U32, sink->module ? sink->module->index : PA_INVALID_INDEX,
2528         PA_TAG_CVOLUME, pa_sink_get_volume(sink, FALSE),
2529         PA_TAG_BOOLEAN, pa_sink_get_mute(sink, FALSE),
2530         PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX,
2531         PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL,
2532         PA_TAG_USEC, pa_sink_get_latency(sink),
2533         PA_TAG_STRING, sink->driver,
2534         PA_TAG_U32, sink->flags,
2535         PA_TAG_INVALID);
2536
2537     if (c->version >= 13) {
2538         pa_tagstruct_put_proplist(t, sink->proplist);
2539         pa_tagstruct_put_usec(t, pa_sink_get_requested_latency(sink));
2540     }
2541 }
2542
2543 static void source_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source *source) {
2544     pa_sample_spec fixed_ss;
2545
2546     pa_assert(t);
2547     pa_source_assert_ref(source);
2548
2549     fixup_sample_spec(c, &fixed_ss, &source->sample_spec);
2550
2551     pa_tagstruct_put(
2552         t,
2553         PA_TAG_U32, source->index,
2554         PA_TAG_STRING, source->name,
2555         PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2556         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2557         PA_TAG_CHANNEL_MAP, &source->channel_map,
2558         PA_TAG_U32, source->module ? source->module->index : PA_INVALID_INDEX,
2559         PA_TAG_CVOLUME, pa_source_get_volume(source, FALSE),
2560         PA_TAG_BOOLEAN, pa_source_get_mute(source, FALSE),
2561         PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX,
2562         PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
2563         PA_TAG_USEC, pa_source_get_latency(source),
2564         PA_TAG_STRING, source->driver,
2565         PA_TAG_U32, source->flags,
2566         PA_TAG_INVALID);
2567
2568     if (c->version >= 13) {
2569         pa_tagstruct_put_proplist(t, source->proplist);
2570         pa_tagstruct_put_usec(t, pa_source_get_requested_latency(source));
2571     }
2572 }
2573
2574
2575 static void client_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_client *client) {
2576     pa_assert(t);
2577     pa_assert(client);
2578
2579     pa_tagstruct_putu32(t, client->index);
2580     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME)));
2581     pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX);
2582     pa_tagstruct_puts(t, client->driver);
2583
2584     if (c->version >= 13)
2585         pa_tagstruct_put_proplist(t, client->proplist);
2586
2587 }
2588
2589 static void module_fill_tagstruct(pa_tagstruct *t, pa_module *module) {
2590     pa_assert(t);
2591     pa_assert(module);
2592
2593     pa_tagstruct_putu32(t, module->index);
2594     pa_tagstruct_puts(t, module->name);
2595     pa_tagstruct_puts(t, module->argument);
2596     pa_tagstruct_putu32(t, module->n_used);
2597     pa_tagstruct_put_boolean(t, module->auto_unload);
2598 }
2599
2600 static void sink_input_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink_input *s) {
2601     pa_sample_spec fixed_ss;
2602     pa_usec_t sink_latency;
2603
2604     pa_assert(t);
2605     pa_sink_input_assert_ref(s);
2606
2607     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2608
2609     pa_tagstruct_putu32(t, s->index);
2610     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2611     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2612     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2613     pa_tagstruct_putu32(t, s->sink->index);
2614     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2615     pa_tagstruct_put_channel_map(t, &s->channel_map);
2616     pa_tagstruct_put_cvolume(t, &s->volume);
2617     pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s, &sink_latency));
2618     pa_tagstruct_put_usec(t, sink_latency);
2619     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s)));
2620     pa_tagstruct_puts(t, s->driver);
2621     if (c->version >= 11)
2622         pa_tagstruct_put_boolean(t, pa_sink_input_get_mute(s));
2623     if (c->version >= 13)
2624         pa_tagstruct_put_proplist(t, s->proplist);
2625 }
2626
2627 static void source_output_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source_output *s) {
2628     pa_sample_spec fixed_ss;
2629     pa_usec_t source_latency;
2630
2631     pa_assert(t);
2632     pa_source_output_assert_ref(s);
2633
2634     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2635
2636     pa_tagstruct_putu32(t, s->index);
2637     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2638     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2639     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2640     pa_tagstruct_putu32(t, s->source->index);
2641     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2642     pa_tagstruct_put_channel_map(t, &s->channel_map);
2643     pa_tagstruct_put_usec(t, pa_source_output_get_latency(s, &source_latency));
2644     pa_tagstruct_put_usec(t, source_latency);
2645     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s)));
2646     pa_tagstruct_puts(t, s->driver);
2647
2648     if (c->version >= 13)
2649         pa_tagstruct_put_proplist(t, s->proplist);
2650 }
2651
2652 static void scache_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_scache_entry *e) {
2653     pa_sample_spec fixed_ss;
2654
2655     pa_assert(t);
2656     pa_assert(e);
2657
2658     if (e->memchunk.memblock)
2659         fixup_sample_spec(c, &fixed_ss, &e->sample_spec);
2660     else
2661         memset(&fixed_ss, 0, sizeof(fixed_ss));
2662
2663     pa_tagstruct_putu32(t, e->index);
2664     pa_tagstruct_puts(t, e->name);
2665     pa_tagstruct_put_cvolume(t, &e->volume);
2666     pa_tagstruct_put_usec(t, e->memchunk.memblock ? pa_bytes_to_usec(e->memchunk.length, &e->sample_spec) : 0);
2667     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2668     pa_tagstruct_put_channel_map(t, &e->channel_map);
2669     pa_tagstruct_putu32(t, e->memchunk.length);
2670     pa_tagstruct_put_boolean(t, e->lazy);
2671     pa_tagstruct_puts(t, e->filename);
2672
2673     if (c->version >= 13)
2674         pa_tagstruct_put_proplist(t, e->proplist);
2675 }
2676
2677 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2678     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2679     uint32_t idx;
2680     pa_sink *sink = NULL;
2681     pa_source *source = NULL;
2682     pa_client *client = NULL;
2683     pa_module *module = NULL;
2684     pa_sink_input *si = NULL;
2685     pa_source_output *so = NULL;
2686     pa_scache_entry *sce = NULL;
2687     const char *name;
2688     pa_tagstruct *reply;
2689
2690     pa_native_connection_assert_ref(c);
2691     pa_assert(t);
2692
2693     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2694         (command != PA_COMMAND_GET_CLIENT_INFO &&
2695          command != PA_COMMAND_GET_MODULE_INFO &&
2696          command != PA_COMMAND_GET_SINK_INPUT_INFO &&
2697          command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
2698          pa_tagstruct_gets(t, &name) < 0) ||
2699         !pa_tagstruct_eof(t)) {
2700         protocol_error(c);
2701         return;
2702     }
2703
2704     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2705     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2706     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
2707     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
2708     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2709
2710     if (command == PA_COMMAND_GET_SINK_INFO) {
2711         if (idx != PA_INVALID_INDEX)
2712             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2713         else
2714             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2715     } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
2716         if (idx != PA_INVALID_INDEX)
2717             source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2718         else
2719             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2720     } else if (command == PA_COMMAND_GET_CLIENT_INFO)
2721         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
2722     else if (command == PA_COMMAND_GET_MODULE_INFO)
2723         module = pa_idxset_get_by_index(c->protocol->core->modules, idx);
2724     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
2725         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2726     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
2727         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
2728     else {
2729         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO);
2730         if (idx != PA_INVALID_INDEX)
2731             sce = pa_idxset_get_by_index(c->protocol->core->scache, idx);
2732         else
2733             sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0);
2734     }
2735
2736     if (!sink && !source && !client && !module && !si && !so && !sce) {
2737         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2738         return;
2739     }
2740
2741     reply = reply_new(tag);
2742     if (sink)
2743         sink_fill_tagstruct(c, reply, sink);
2744     else if (source)
2745         source_fill_tagstruct(c, reply, source);
2746     else if (client)
2747         client_fill_tagstruct(c, reply, client);
2748     else if (module)
2749         module_fill_tagstruct(reply, module);
2750     else if (si)
2751         sink_input_fill_tagstruct(c, reply, si);
2752     else if (so)
2753         source_output_fill_tagstruct(c, reply, so);
2754     else
2755         scache_fill_tagstruct(c, reply, sce);
2756     pa_pstream_send_tagstruct(c->pstream, reply);
2757 }
2758
2759 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2760     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2761     pa_idxset *i;
2762     uint32_t idx;
2763     void *p;
2764     pa_tagstruct *reply;
2765
2766     pa_native_connection_assert_ref(c);
2767     pa_assert(t);
2768
2769     if (!pa_tagstruct_eof(t)) {
2770         protocol_error(c);
2771         return;
2772     }
2773
2774     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2775
2776     reply = reply_new(tag);
2777
2778     if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2779         i = c->protocol->core->sinks;
2780     else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2781         i = c->protocol->core->sources;
2782     else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2783         i = c->protocol->core->clients;
2784     else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2785         i = c->protocol->core->modules;
2786     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2787         i = c->protocol->core->sink_inputs;
2788     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2789         i = c->protocol->core->source_outputs;
2790     else {
2791         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2792         i = c->protocol->core->scache;
2793     }
2794
2795     if (i) {
2796         for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) {
2797             if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2798                 sink_fill_tagstruct(c, reply, p);
2799             else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2800                 source_fill_tagstruct(c, reply, p);
2801             else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2802                 client_fill_tagstruct(c, reply, p);
2803             else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2804                 module_fill_tagstruct(reply, p);
2805             else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2806                 sink_input_fill_tagstruct(c, reply, p);
2807             else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2808                 source_output_fill_tagstruct(c, reply, p);
2809             else {
2810                 pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2811                 scache_fill_tagstruct(c, reply, p);
2812             }
2813         }
2814     }
2815
2816     pa_pstream_send_tagstruct(c->pstream, reply);
2817 }
2818
2819 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2820     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2821     pa_tagstruct *reply;
2822     char txt[256];
2823     const char *n;
2824     pa_sample_spec fixed_ss;
2825
2826     pa_native_connection_assert_ref(c);
2827     pa_assert(t);
2828
2829     if (!pa_tagstruct_eof(t)) {
2830         protocol_error(c);
2831         return;
2832     }
2833
2834     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2835
2836     reply = reply_new(tag);
2837     pa_tagstruct_puts(reply, PACKAGE_NAME);
2838     pa_tagstruct_puts(reply, PACKAGE_VERSION);
2839     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
2840     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
2841
2842     fixup_sample_spec(c, &fixed_ss, &c->protocol->core->default_sample_spec);
2843     pa_tagstruct_put_sample_spec(reply, &fixed_ss);
2844
2845     n = pa_namereg_get_default_sink_name(c->protocol->core);
2846     pa_tagstruct_puts(reply, n);
2847     n = pa_namereg_get_default_source_name(c->protocol->core);
2848     pa_tagstruct_puts(reply, n);
2849
2850     pa_tagstruct_putu32(reply, c->protocol->core->cookie);
2851
2852     pa_pstream_send_tagstruct(c->pstream, reply);
2853 }
2854
2855 static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) {
2856     pa_tagstruct *t;
2857     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2858
2859     pa_native_connection_assert_ref(c);
2860
2861     t = pa_tagstruct_new(NULL, 0);
2862     pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
2863     pa_tagstruct_putu32(t, (uint32_t) -1);
2864     pa_tagstruct_putu32(t, e);
2865     pa_tagstruct_putu32(t, idx);
2866     pa_pstream_send_tagstruct(c->pstream, t);
2867 }
2868
2869 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2870     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2871     pa_subscription_mask_t m;
2872
2873     pa_native_connection_assert_ref(c);
2874     pa_assert(t);
2875
2876     if (pa_tagstruct_getu32(t, &m) < 0 ||
2877         !pa_tagstruct_eof(t)) {
2878         protocol_error(c);
2879         return;
2880     }
2881
2882     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2883     CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID);
2884
2885     if (c->subscription)
2886         pa_subscription_free(c->subscription);
2887
2888     if (m != 0) {
2889         c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
2890         pa_assert(c->subscription);
2891     } else
2892         c->subscription = NULL;
2893
2894     pa_pstream_send_simple_ack(c->pstream, tag);
2895 }
2896
2897 static void command_set_volume(
2898         pa_pdispatch *pd,
2899         uint32_t command,
2900         uint32_t tag,
2901         pa_tagstruct *t,
2902         void *userdata) {
2903
2904     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2905     uint32_t idx;
2906     pa_cvolume volume;
2907     pa_sink *sink = NULL;
2908     pa_source *source = NULL;
2909     pa_sink_input *si = NULL;
2910     const char *name = NULL;
2911
2912     pa_native_connection_assert_ref(c);
2913     pa_assert(t);
2914
2915     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2916         (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2917         (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2918         pa_tagstruct_get_cvolume(t, &volume) ||
2919         !pa_tagstruct_eof(t)) {
2920         protocol_error(c);
2921         return;
2922     }
2923
2924     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2925     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2926     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
2927     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
2928     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2929     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
2930
2931     switch (command) {
2932
2933         case PA_COMMAND_SET_SINK_VOLUME:
2934             if (idx != PA_INVALID_INDEX)
2935                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2936             else
2937                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2938             break;
2939
2940         case PA_COMMAND_SET_SOURCE_VOLUME:
2941             if (idx != PA_INVALID_INDEX)
2942                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2943             else
2944                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2945             break;
2946
2947         case PA_COMMAND_SET_SINK_INPUT_VOLUME:
2948             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2949             break;
2950
2951         default:
2952             pa_assert_not_reached();
2953     }
2954
2955     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
2956
2957     if (sink)
2958         pa_sink_set_volume(sink, &volume);
2959     else if (source)
2960         pa_source_set_volume(source, &volume);
2961     else if (si)
2962         pa_sink_input_set_volume(si, &volume);
2963
2964     pa_pstream_send_simple_ack(c->pstream, tag);
2965 }
2966
2967 static void command_set_mute(
2968         pa_pdispatch *pd,
2969         uint32_t command,
2970         uint32_t tag,
2971         pa_tagstruct *t,
2972         void *userdata) {
2973
2974     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2975     uint32_t idx;
2976     pa_bool_t mute;
2977     pa_sink *sink = NULL;
2978     pa_source *source = NULL;
2979     pa_sink_input *si = NULL;
2980     const char *name = NULL;
2981
2982     pa_native_connection_assert_ref(c);
2983     pa_assert(t);
2984
2985     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2986         (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2987         (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2988         pa_tagstruct_get_boolean(t, &mute) ||
2989         !pa_tagstruct_eof(t)) {
2990         protocol_error(c);
2991         return;
2992     }
2993
2994     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2995     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2996     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
2997     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
2998     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2999
3000     switch (command) {
3001
3002         case PA_COMMAND_SET_SINK_MUTE:
3003
3004             if (idx != PA_INVALID_INDEX)
3005                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3006             else
3007                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3008
3009             break;
3010
3011         case PA_COMMAND_SET_SOURCE_MUTE:
3012             if (idx != PA_INVALID_INDEX)
3013                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3014             else
3015                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3016
3017             break;
3018
3019         case PA_COMMAND_SET_SINK_INPUT_MUTE:
3020             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3021             break;
3022
3023         default:
3024             pa_assert_not_reached();
3025     }
3026
3027     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
3028
3029     if (sink)
3030         pa_sink_set_mute(sink, mute);
3031     else if (source)
3032         pa_source_set_mute(source, mute);
3033     else if (si)
3034         pa_sink_input_set_mute(si, mute);
3035
3036     pa_pstream_send_simple_ack(c->pstream, tag);
3037 }
3038
3039 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3040     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3041     uint32_t idx;
3042     pa_bool_t b;
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_get_boolean(t, &b) < 0 ||
3050         !pa_tagstruct_eof(t)) {
3051         protocol_error(c);
3052         return;
3053     }
3054
3055     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3056     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3057     s = pa_idxset_get_by_index(c->output_streams, idx);
3058     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3059     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3060
3061     pa_sink_input_cork(s->sink_input, b);
3062     pa_pstream_send_simple_ack(c->pstream, tag);
3063 }
3064
3065 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3066     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3067     uint32_t idx;
3068     playback_stream *s;
3069
3070     pa_native_connection_assert_ref(c);
3071     pa_assert(t);
3072
3073     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3074         !pa_tagstruct_eof(t)) {
3075         protocol_error(c);
3076         return;
3077     }
3078
3079     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3080     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3081     s = pa_idxset_get_by_index(c->output_streams, idx);
3082     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3083     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3084
3085     switch (command) {
3086         case PA_COMMAND_FLUSH_PLAYBACK_STREAM:
3087             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL);
3088             break;
3089
3090         case PA_COMMAND_PREBUF_PLAYBACK_STREAM:
3091             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL);
3092             break;
3093
3094         case PA_COMMAND_TRIGGER_PLAYBACK_STREAM:
3095             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL);
3096             break;
3097
3098         default:
3099             pa_assert_not_reached();
3100     }
3101
3102     pa_pstream_send_simple_ack(c->pstream, tag);
3103 }
3104
3105 static void command_cork_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     pa_bool_t b;
3110
3111     pa_native_connection_assert_ref(c);
3112     pa_assert(t);
3113
3114     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3115         pa_tagstruct_get_boolean(t, &b) < 0 ||
3116         !pa_tagstruct_eof(t)) {
3117         protocol_error(c);
3118         return;
3119     }
3120
3121     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3122     s = pa_idxset_get_by_index(c->record_streams, idx);
3123     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3124
3125     pa_source_output_cork(s->source_output, b);
3126     pa_memblockq_prebuf_force(s->memblockq);
3127     pa_pstream_send_simple_ack(c->pstream, tag);
3128 }
3129
3130 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3131     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3132     uint32_t idx;
3133     record_stream *s;
3134
3135     pa_native_connection_assert_ref(c);
3136     pa_assert(t);
3137
3138     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3139         !pa_tagstruct_eof(t)) {
3140         protocol_error(c);
3141         return;
3142     }
3143
3144     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3145     s = pa_idxset_get_by_index(c->record_streams, idx);
3146     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3147
3148     pa_memblockq_flush_read(s->memblockq);
3149     pa_pstream_send_simple_ack(c->pstream, tag);
3150 }
3151
3152 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3153     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3154     uint32_t idx;
3155     uint32_t maxlength, tlength, prebuf, minreq, fragsize;
3156     pa_tagstruct *reply;
3157
3158     pa_native_connection_assert_ref(c);
3159     pa_assert(t);
3160
3161     if (pa_tagstruct_getu32(t, &idx) < 0) {
3162         protocol_error(c);
3163         return;
3164     }
3165
3166     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3167
3168     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR) {
3169         playback_stream *s;
3170         pa_bool_t adjust_latency = FALSE;
3171
3172         s = pa_idxset_get_by_index(c->output_streams, idx);
3173         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3174         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3175
3176         if (pa_tagstruct_get(
3177                     t,
3178                     PA_TAG_U32, &maxlength,
3179                     PA_TAG_U32, &tlength,
3180                     PA_TAG_U32, &prebuf,
3181                     PA_TAG_U32, &minreq,
3182                     PA_TAG_INVALID) < 0 ||
3183             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3184             !pa_tagstruct_eof(t)) {
3185             protocol_error(c);
3186             return;
3187         }
3188
3189         fix_playback_buffer_attr_pre(s, adjust_latency, &maxlength, &tlength, &prebuf, &minreq);
3190         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3191         pa_memblockq_set_tlength(s->memblockq, tlength);
3192         pa_memblockq_set_prebuf(s->memblockq, prebuf);
3193         pa_memblockq_set_minreq(s->memblockq, minreq);
3194         fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
3195
3196         reply = reply_new(tag);
3197         pa_tagstruct_putu32(reply, maxlength);
3198         pa_tagstruct_putu32(reply, tlength);
3199         pa_tagstruct_putu32(reply, prebuf);
3200         pa_tagstruct_putu32(reply, minreq);
3201
3202         if (c->version >= 13)
3203             pa_tagstruct_put_usec(reply, s->sink_latency);
3204
3205     } else {
3206         record_stream *s;
3207         pa_bool_t adjust_latency = FALSE;
3208         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR);
3209
3210         s = pa_idxset_get_by_index(c->record_streams, idx);
3211         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3212
3213         if (pa_tagstruct_get(
3214                     t,
3215                     PA_TAG_U32, &maxlength,
3216                     PA_TAG_U32, &fragsize,
3217                     PA_TAG_INVALID) < 0 ||
3218             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3219             !pa_tagstruct_eof(t)) {
3220             protocol_error(c);
3221             return;
3222         }
3223
3224         fix_record_buffer_attr_pre(s, adjust_latency, &maxlength, &fragsize);
3225         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3226         fix_record_buffer_attr_post(s, &maxlength, &fragsize);
3227
3228         reply = reply_new(tag);
3229         pa_tagstruct_putu32(reply, maxlength);
3230         pa_tagstruct_putu32(reply, fragsize);
3231
3232         if (c->version >= 13)
3233             pa_tagstruct_put_usec(reply, s->source_latency);
3234     }
3235
3236     pa_pstream_send_tagstruct(c->pstream, reply);
3237 }
3238
3239 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3240     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3241     uint32_t idx;
3242     uint32_t rate;
3243
3244     pa_native_connection_assert_ref(c);
3245     pa_assert(t);
3246
3247     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3248         pa_tagstruct_getu32(t, &rate) < 0 ||
3249         !pa_tagstruct_eof(t)) {
3250         protocol_error(c);
3251         return;
3252     }
3253
3254     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3255     CHECK_VALIDITY(c->pstream, rate > 0 && rate <= PA_RATE_MAX, tag, PA_ERR_INVALID);
3256
3257     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) {
3258         playback_stream *s;
3259
3260         s = pa_idxset_get_by_index(c->output_streams, idx);
3261         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3262         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3263
3264         pa_sink_input_set_rate(s->sink_input, rate);
3265
3266     } else {
3267         record_stream *s;
3268         pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE);
3269
3270         s = pa_idxset_get_by_index(c->record_streams, idx);
3271         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3272
3273         pa_source_output_set_rate(s->source_output, rate);
3274     }
3275
3276     pa_pstream_send_simple_ack(c->pstream, tag);
3277 }
3278
3279 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3280     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3281     uint32_t idx;
3282     uint32_t mode;
3283     pa_proplist *p;
3284
3285     pa_native_connection_assert_ref(c);
3286     pa_assert(t);
3287
3288     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3289
3290     p = pa_proplist_new();
3291
3292     if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) {
3293
3294         if (pa_tagstruct_getu32(t, &mode) < 0 ||
3295             pa_tagstruct_get_proplist(t, p) < 0 ||
3296             !pa_tagstruct_eof(t)) {
3297             protocol_error(c);
3298             pa_proplist_free(p);
3299             return;
3300         }
3301
3302     } else {
3303
3304         if (pa_tagstruct_getu32(t, &idx) < 0 ||
3305             pa_tagstruct_getu32(t, &mode) < 0 ||
3306             pa_tagstruct_get_proplist(t, p) < 0 ||
3307             !pa_tagstruct_eof(t)) {
3308             protocol_error(c);
3309             pa_proplist_free(p);
3310             return;
3311         }
3312     }
3313
3314     CHECK_VALIDITY(c->pstream, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, tag, PA_ERR_INVALID);
3315
3316     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST) {
3317         playback_stream *s;
3318
3319         s = pa_idxset_get_by_index(c->output_streams, idx);
3320         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3321         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3322
3323         pa_proplist_update(s->sink_input->proplist, mode, p);
3324         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3325
3326     } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) {
3327         record_stream *s;
3328
3329         s = pa_idxset_get_by_index(c->record_streams, idx);
3330         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3331
3332         pa_proplist_update(s->source_output->proplist, mode, p);
3333         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3334     } else {
3335         pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST);
3336
3337         pa_proplist_update(c->client->proplist, mode, p);
3338         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3339     }
3340
3341     pa_pstream_send_simple_ack(c->pstream, tag);
3342 }
3343
3344 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3345     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3346     uint32_t idx;
3347     unsigned changed = 0;
3348     pa_proplist *p;
3349     pa_strlist *l = NULL;
3350
3351     pa_native_connection_assert_ref(c);
3352     pa_assert(t);
3353
3354     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3355
3356     if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) {
3357
3358         if (pa_tagstruct_getu32(t, &idx) < 0) {
3359             protocol_error(c);
3360             return;
3361         }
3362     }
3363
3364     if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3365         playback_stream *s;
3366
3367         s = pa_idxset_get_by_index(c->output_streams, idx);
3368         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3369         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3370
3371         p = s->sink_input->proplist;
3372
3373     } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3374         record_stream *s;
3375
3376         s = pa_idxset_get_by_index(c->record_streams, idx);
3377         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3378
3379         p = s->source_output->proplist;
3380     } else {
3381         pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3382
3383         p = c->client->proplist;
3384     }
3385
3386     for (;;) {
3387         const char *k;
3388
3389         if (pa_tagstruct_gets(t, &k) < 0) {
3390             protocol_error(c);
3391             pa_strlist_free(l);
3392             return;
3393         }
3394
3395         if (!k)
3396             break;
3397
3398         l = pa_strlist_prepend(l, k);
3399     }
3400
3401     if (!pa_tagstruct_eof(t)) {
3402         protocol_error(c);
3403         pa_strlist_free(l);
3404         return;
3405     }
3406
3407     for (;;) {
3408         char *z;
3409
3410         l = pa_strlist_pop(l, &z);
3411
3412         if (!z)
3413             break;
3414
3415         changed += pa_proplist_unset(p, z) >= 0;
3416         pa_xfree(z);
3417     }
3418
3419     pa_pstream_send_simple_ack(c->pstream, tag);
3420
3421     if (changed) {
3422         if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3423             playback_stream *s;
3424
3425             s = pa_idxset_get_by_index(c->output_streams, idx);
3426             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3427
3428         } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3429             record_stream *s;
3430
3431             s = pa_idxset_get_by_index(c->record_streams, idx);
3432             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3433
3434         } else {
3435             pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3436             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3437         }
3438     }
3439 }
3440
3441 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3442     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3443     const char *s;
3444
3445     pa_native_connection_assert_ref(c);
3446     pa_assert(t);
3447
3448     if (pa_tagstruct_gets(t, &s) < 0 ||
3449         !pa_tagstruct_eof(t)) {
3450         protocol_error(c);
3451         return;
3452     }
3453
3454     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3455     CHECK_VALIDITY(c->pstream, !s || pa_namereg_is_valid_name(s), tag, PA_ERR_INVALID);
3456
3457     pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
3458     pa_pstream_send_simple_ack(c->pstream, tag);
3459 }
3460
3461 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3462     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3463     uint32_t idx;
3464     const char *name;
3465
3466     pa_native_connection_assert_ref(c);
3467     pa_assert(t);
3468
3469     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3470         pa_tagstruct_gets(t, &name) < 0 ||
3471         !pa_tagstruct_eof(t)) {
3472         protocol_error(c);
3473         return;
3474     }
3475
3476     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3477     CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3478
3479     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
3480         playback_stream *s;
3481
3482         s = pa_idxset_get_by_index(c->output_streams, idx);
3483         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3484         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3485
3486         pa_sink_input_set_name(s->sink_input, name);
3487
3488     } else {
3489         record_stream *s;
3490         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_NAME);
3491
3492         s = pa_idxset_get_by_index(c->record_streams, idx);
3493         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3494
3495         pa_source_output_set_name(s->source_output, name);
3496     }
3497
3498     pa_pstream_send_simple_ack(c->pstream, tag);
3499 }
3500
3501 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3502     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3503     uint32_t idx;
3504
3505     pa_native_connection_assert_ref(c);
3506     pa_assert(t);
3507
3508     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3509         !pa_tagstruct_eof(t)) {
3510         protocol_error(c);
3511         return;
3512     }
3513
3514     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3515
3516     if (command == PA_COMMAND_KILL_CLIENT) {
3517         pa_client *client;
3518
3519         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
3520         CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY);
3521
3522         pa_native_connection_ref(c);
3523         pa_client_kill(client);
3524
3525     } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
3526         pa_sink_input *s;
3527
3528         s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3529         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3530
3531         pa_native_connection_ref(c);
3532         pa_sink_input_kill(s);
3533     } else {
3534         pa_source_output *s;
3535
3536         pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
3537
3538         s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3539         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3540
3541         pa_native_connection_ref(c);
3542         pa_source_output_kill(s);
3543     }
3544
3545     pa_pstream_send_simple_ack(c->pstream, tag);
3546     pa_native_connection_unref(c);
3547 }
3548
3549 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3550     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3551     pa_module *m;
3552     const char *name, *argument;
3553     pa_tagstruct *reply;
3554
3555     pa_native_connection_assert_ref(c);
3556     pa_assert(t);
3557
3558     if (pa_tagstruct_gets(t, &name) < 0 ||
3559         pa_tagstruct_gets(t, &argument) < 0 ||
3560         !pa_tagstruct_eof(t)) {
3561         protocol_error(c);
3562         return;
3563     }
3564
3565     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3566     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID);
3567     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3568
3569     if (!(m = pa_module_load(c->protocol->core, name, argument))) {
3570         pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED);
3571         return;
3572     }
3573
3574     reply = reply_new(tag);
3575     pa_tagstruct_putu32(reply, m->index);
3576     pa_pstream_send_tagstruct(c->pstream, reply);
3577 }
3578
3579 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3580     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3581     uint32_t idx;
3582     pa_module *m;
3583
3584     pa_native_connection_assert_ref(c);
3585     pa_assert(t);
3586
3587     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3588         !pa_tagstruct_eof(t)) {
3589         protocol_error(c);
3590         return;
3591     }
3592
3593     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3594     m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3595     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY);
3596
3597     pa_module_unload_request(m, FALSE);
3598     pa_pstream_send_simple_ack(c->pstream, tag);
3599 }
3600
3601 static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3602     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3603     const char *name, *module, *argument;
3604     uint32_t type;
3605     uint32_t idx;
3606     pa_tagstruct *reply;
3607
3608     pa_native_connection_assert_ref(c);
3609     pa_assert(t);
3610
3611     if (pa_tagstruct_gets(t, &name) < 0 ||
3612         pa_tagstruct_getu32(t, &type) < 0 ||
3613         pa_tagstruct_gets(t, &module) < 0 ||
3614         pa_tagstruct_gets(t, &argument) < 0 ||
3615         !pa_tagstruct_eof(t)) {
3616         protocol_error(c);
3617         return;
3618     }
3619
3620     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3621     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3622     CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID);
3623     CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID);
3624     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3625
3626     if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) {
3627         pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
3628         return;
3629     }
3630
3631     reply = reply_new(tag);
3632     pa_tagstruct_putu32(reply, idx);
3633     pa_pstream_send_tagstruct(c->pstream, reply);
3634 }
3635
3636 static void command_remove_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3637     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3638     const char *name = NULL;
3639     uint32_t type, idx = PA_IDXSET_INVALID;
3640     int r;
3641
3642     pa_native_connection_assert_ref(c);
3643     pa_assert(t);
3644
3645     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3646         (pa_tagstruct_gets(t, &name) < 0 ||
3647          pa_tagstruct_getu32(t, &type) < 0)) ||
3648         !pa_tagstruct_eof(t)) {
3649         protocol_error(c);
3650         return;
3651     }
3652
3653     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3654     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3655     CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID);
3656
3657     if (name)
3658         r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3659     else
3660         r = pa_autoload_remove_by_index(c->protocol->core, idx);
3661
3662     CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY);
3663
3664     pa_pstream_send_simple_ack(c->pstream, tag);
3665 }
3666
3667 static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) {
3668     pa_assert(t && e);
3669
3670     pa_tagstruct_putu32(t, e->index);
3671     pa_tagstruct_puts(t, e->name);
3672     pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1);
3673     pa_tagstruct_puts(t, e->module);
3674     pa_tagstruct_puts(t, e->argument);
3675 }
3676
3677 static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3678     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3679     const pa_autoload_entry *a = NULL;
3680     uint32_t type, idx;
3681     const char *name;
3682     pa_tagstruct *reply;
3683
3684     pa_native_connection_assert_ref(c);
3685     pa_assert(t);
3686
3687     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3688         (pa_tagstruct_gets(t, &name) < 0 ||
3689          pa_tagstruct_getu32(t, &type) < 0)) ||
3690         !pa_tagstruct_eof(t)) {
3691         protocol_error(c);
3692         return;
3693     }
3694
3695     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3696     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3697     CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
3698
3699     if (name)
3700         a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3701     else
3702         a = pa_autoload_get_by_index(c->protocol->core, idx);
3703
3704     CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY);
3705
3706     reply = reply_new(tag);
3707     autoload_fill_tagstruct(reply, a);
3708     pa_pstream_send_tagstruct(c->pstream, reply);
3709 }
3710
3711 static void command_get_autoload_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3712     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3713     pa_tagstruct *reply;
3714
3715     pa_native_connection_assert_ref(c);
3716     pa_assert(t);
3717
3718     if (!pa_tagstruct_eof(t)) {
3719         protocol_error(c);
3720         return;
3721     }
3722
3723     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3724
3725     reply = reply_new(tag);
3726
3727     if (c->protocol->core->autoload_hashmap) {
3728         pa_autoload_entry *a;
3729         void *state = NULL;
3730
3731         while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL)))
3732             autoload_fill_tagstruct(reply, a);
3733     }
3734
3735     pa_pstream_send_tagstruct(c->pstream, reply);
3736 }
3737
3738 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3739     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3740     uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX;
3741     const char *name_device = NULL;
3742
3743     pa_native_connection_assert_ref(c);
3744     pa_assert(t);
3745
3746     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3747         pa_tagstruct_getu32(t, &idx_device) < 0 ||
3748         pa_tagstruct_gets(t, &name_device) < 0 ||
3749         !pa_tagstruct_eof(t)) {
3750         protocol_error(c);
3751         return;
3752     }
3753
3754     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3755     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3756
3757     CHECK_VALIDITY(c->pstream, !name_device || pa_namereg_is_valid_name(name_device), tag, PA_ERR_INVALID);
3758     CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || name_device, tag, PA_ERR_INVALID);
3759     CHECK_VALIDITY(c->pstream, idx_device == PA_INVALID_INDEX || !name_device, tag, PA_ERR_INVALID);
3760     CHECK_VALIDITY(c->pstream, !name_device || idx_device == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3761
3762     if (command == PA_COMMAND_MOVE_SINK_INPUT) {
3763         pa_sink_input *si = NULL;
3764         pa_sink *sink = NULL;
3765
3766         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3767
3768         if (idx_device != PA_INVALID_INDEX)
3769             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device);
3770         else
3771             sink = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SINK, 1);
3772
3773         CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY);
3774
3775         if (pa_sink_input_move_to(si, sink) < 0) {
3776             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3777             return;
3778         }
3779     } else {
3780         pa_source_output *so = NULL;
3781         pa_source *source;
3782
3783         pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT);
3784
3785         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3786
3787         if (idx_device != PA_INVALID_INDEX)
3788             source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device);
3789         else
3790             source = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SOURCE, 1);
3791
3792         CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY);
3793
3794         if (pa_source_output_move_to(so, source) < 0) {
3795             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3796             return;
3797         }
3798     }
3799
3800     pa_pstream_send_simple_ack(c->pstream, tag);
3801 }
3802
3803 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3804     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3805     uint32_t idx = PA_INVALID_INDEX;
3806     const char *name = NULL;
3807     pa_bool_t b;
3808
3809     pa_native_connection_assert_ref(c);
3810     pa_assert(t);
3811
3812     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3813         pa_tagstruct_gets(t, &name) < 0 ||
3814         pa_tagstruct_get_boolean(t, &b) < 0 ||
3815         !pa_tagstruct_eof(t)) {
3816         protocol_error(c);
3817         return;
3818     }
3819
3820     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3821     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
3822     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3823     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3824     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3825
3826     if (command == PA_COMMAND_SUSPEND_SINK) {
3827
3828         if (idx == PA_INVALID_INDEX && name && !*name) {
3829
3830             if (pa_sink_suspend_all(c->protocol->core, b) < 0) {
3831                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3832                 return;
3833             }
3834         } else {
3835             pa_sink *sink = NULL;
3836
3837             if (idx != PA_INVALID_INDEX)
3838                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3839             else
3840                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3841
3842             CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
3843
3844             if (pa_sink_suspend(sink, b) < 0) {
3845                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3846                 return;
3847             }
3848         }
3849     } else {
3850
3851         pa_assert(command == PA_COMMAND_SUSPEND_SOURCE);
3852
3853         if (idx == PA_INVALID_INDEX && name && !*name) {
3854
3855             if (pa_source_suspend_all(c->protocol->core, b) < 0) {
3856                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3857                 return;
3858             }
3859
3860         } else {
3861             pa_source *source;
3862
3863             if (idx != PA_INVALID_INDEX)
3864                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3865             else
3866                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3867
3868             CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
3869
3870             if (pa_source_suspend(source, b) < 0) {
3871                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3872                 return;
3873             }
3874         }
3875     }
3876
3877     pa_pstream_send_simple_ack(c->pstream, tag);
3878 }
3879
3880 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3881     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3882     uint32_t idx = PA_INVALID_INDEX;
3883     const char *name = NULL;
3884     pa_module *m;
3885     pa_native_protocol_ext_cb_t cb;
3886
3887     pa_native_connection_assert_ref(c);
3888     pa_assert(t);
3889
3890     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3891         pa_tagstruct_gets(t, &name) < 0) {
3892         protocol_error(c);
3893         return;
3894     }
3895
3896     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3897     CHECK_VALIDITY(c->pstream, !name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
3898     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3899     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3900     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3901
3902     if (idx != PA_INVALID_INDEX)
3903         m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3904     else {
3905         for (m = pa_idxset_first(c->protocol->core->modules, &idx); m; m = pa_idxset_next(c->protocol->core->modules, &idx))
3906             if (strcmp(name, m->name) == 0)
3907                 break;
3908     }
3909
3910     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
3911     CHECK_VALIDITY(c->pstream, m->load_once || idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3912
3913     cb = (pa_native_protocol_ext_cb_t) pa_hashmap_get(c->protocol->extensions, m);
3914     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
3915
3916     if (cb(c->protocol, m, c, tag, t) < 0)
3917         protocol_error(c);
3918 }
3919
3920
3921 /*** pstream callbacks ***/
3922
3923 static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
3924     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3925
3926     pa_assert(p);
3927     pa_assert(packet);
3928     pa_native_connection_assert_ref(c);
3929
3930     if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) {
3931         pa_log("invalid packet.");
3932         native_connection_unlink(c);
3933     }
3934 }
3935
3936 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) {
3937     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3938     output_stream *stream;
3939
3940     pa_assert(p);
3941     pa_assert(chunk);
3942     pa_native_connection_assert_ref(c);
3943
3944     if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) {
3945         pa_log("client sent block for invalid stream.");
3946         /* Ignoring */
3947         return;
3948     }
3949
3950     if (playback_stream_isinstance(stream)) {
3951         playback_stream *ps = PLAYBACK_STREAM(stream);
3952
3953         if (seek != PA_SEEK_RELATIVE || offset != 0)
3954             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);
3955
3956         pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
3957
3958     } else {
3959         upload_stream *u = UPLOAD_STREAM(stream);
3960         size_t l;
3961
3962         if (!u->memchunk.memblock) {
3963             if (u->length == chunk->length) {
3964                 u->memchunk = *chunk;
3965                 pa_memblock_ref(u->memchunk.memblock);
3966                 u->length = 0;
3967             } else {
3968                 u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length);
3969                 u->memchunk.index = u->memchunk.length = 0;
3970             }
3971         }
3972
3973         pa_assert(u->memchunk.memblock);
3974
3975         l = u->length;
3976         if (l > chunk->length)
3977             l = chunk->length;
3978
3979
3980         if (l > 0) {
3981             void *src, *dst;
3982             dst = pa_memblock_acquire(u->memchunk.memblock);
3983             src = pa_memblock_acquire(chunk->memblock);
3984
3985             memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length,
3986                    (uint8_t*) src+chunk->index, l);
3987
3988             pa_memblock_release(u->memchunk.memblock);
3989             pa_memblock_release(chunk->memblock);
3990
3991             u->memchunk.length += l;
3992             u->length -= l;
3993         }
3994     }
3995 }
3996
3997 static void pstream_die_callback(pa_pstream *p, void *userdata) {
3998     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3999
4000     pa_assert(p);
4001     pa_native_connection_assert_ref(c);
4002
4003     native_connection_unlink(c);
4004     pa_log_info("Connection died.");
4005 }
4006
4007 static void pstream_drain_callback(pa_pstream *p, void *userdata) {
4008     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4009
4010     pa_assert(p);
4011     pa_native_connection_assert_ref(c);
4012
4013     native_connection_send_memblock(c);
4014 }
4015
4016 static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
4017     pa_thread_mq *q;
4018
4019     if (!(q = pa_thread_mq_get()))
4020         pa_pstream_send_revoke(p, block_id);
4021     else
4022         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
4023 }
4024
4025 static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
4026     pa_thread_mq *q;
4027
4028     if (!(q = pa_thread_mq_get()))
4029         pa_pstream_send_release(p, block_id);
4030     else
4031         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
4032 }
4033
4034 /*** client callbacks ***/
4035
4036 static void client_kill_cb(pa_client *c) {
4037     pa_assert(c);
4038
4039     native_connection_unlink(PA_NATIVE_CONNECTION(c->userdata));
4040     pa_log_info("Connection killed.");
4041 }
4042
4043 /*** module entry points ***/
4044
4045 static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
4046     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4047
4048     pa_assert(m);
4049     pa_assert(tv);
4050     pa_native_connection_assert_ref(c);
4051     pa_assert(c->auth_timeout_event == e);
4052
4053     if (!c->authorized) {
4054         native_connection_unlink(c);
4055         pa_log_info("Connection terminated due to authentication timeout.");
4056     }
4057 }
4058
4059 void pa_native_protocol_connect(pa_native_protocol *p, pa_iochannel *io, pa_native_options *o) {
4060     pa_native_connection *c;
4061     char cname[256], pname[128];
4062
4063     pa_assert(p);
4064     pa_assert(io);
4065     pa_assert(o);
4066
4067     if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
4068         pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
4069         pa_iochannel_free(io);
4070         return;
4071     }
4072
4073     c = pa_msgobject_new(pa_native_connection);
4074     c->parent.parent.free = native_connection_free;
4075     c->parent.process_msg = native_connection_process_msg;
4076     c->protocol = p;
4077     c->options = pa_native_options_ref(o);
4078     c->authorized = FALSE;
4079
4080     if (o->auth_anonymous) {
4081         pa_log_info("Client authenticated anonymously.");
4082         c->authorized = TRUE;
4083     }
4084
4085     if (!c->authorized &&
4086         o->auth_ip_acl &&
4087         pa_ip_acl_check(o->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) {
4088
4089         pa_log_info("Client authenticated by IP ACL.");
4090         c->authorized = TRUE;
4091     }
4092
4093     if (!c->authorized) {
4094         struct timeval tv;
4095         pa_gettimeofday(&tv);
4096         tv.tv_sec += AUTH_TIMEOUT;
4097         c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
4098     } else
4099         c->auth_timeout_event = NULL;
4100
4101     c->is_local = pa_iochannel_socket_is_local(io);
4102     c->version = 8;
4103
4104     pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
4105     pa_snprintf(cname, sizeof(cname), "Native client (%s)", pname);
4106     c->client = pa_client_new(p->core, __FILE__, cname);
4107     pa_proplist_sets(c->client->proplist, "native-protocol.peer", pname);
4108     c->client->kill = client_kill_cb;
4109     c->client->userdata = c;
4110     c->client->module = o->module;
4111
4112     c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool);
4113     pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
4114     pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
4115     pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
4116     pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
4117     pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c);
4118     pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c);
4119
4120     c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
4121
4122     c->record_streams = pa_idxset_new(NULL, NULL);
4123     c->output_streams = pa_idxset_new(NULL, NULL);
4124
4125     c->rrobin_index = PA_IDXSET_INVALID;
4126     c->subscription = NULL;
4127
4128     pa_idxset_put(p->connections, c, NULL);
4129
4130 #ifdef HAVE_CREDS
4131     if (pa_iochannel_creds_supported(io))
4132         pa_iochannel_creds_enable(io);
4133 #endif
4134
4135     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_CONNECTION_PUT], c);
4136 }
4137
4138 void pa_native_protocol_disconnect(pa_native_protocol *p, pa_module *m) {
4139     pa_native_connection *c;
4140     void *state = NULL;
4141
4142     pa_assert(p);
4143     pa_assert(m);
4144
4145     while ((c = pa_idxset_iterate(p->connections, &state, NULL)))
4146         if (c->options->module == m)
4147             native_connection_unlink(c);
4148 }
4149
4150 static pa_native_protocol* native_protocol_new(pa_core *c) {
4151     pa_native_protocol *p;
4152     pa_native_hook_t h;
4153
4154     pa_assert(c);
4155
4156     p = pa_xnew(pa_native_protocol, 1);
4157     PA_REFCNT_INIT(p);
4158     p->core = c;
4159     p->connections = pa_idxset_new(NULL, NULL);
4160
4161     p->servers = NULL;
4162
4163     p->extensions = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
4164
4165     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4166         pa_hook_init(&p->hooks[h], p);
4167
4168     pa_assert_se(pa_shared_set(c, "native-protocol", p) >= 0);
4169
4170     return p;
4171 }
4172
4173 pa_native_protocol* pa_native_protocol_get(pa_core *c) {
4174     pa_native_protocol *p;
4175
4176     if ((p = pa_shared_get(c, "native-protocol")))
4177         return pa_native_protocol_ref(p);
4178
4179     return native_protocol_new(c);
4180 }
4181
4182 pa_native_protocol* pa_native_protocol_ref(pa_native_protocol *p) {
4183     pa_assert(p);
4184     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4185
4186     PA_REFCNT_INC(p);
4187
4188     return p;
4189 }
4190
4191 void pa_native_protocol_unref(pa_native_protocol *p) {
4192     pa_native_connection *c;
4193     pa_native_hook_t h;
4194
4195     pa_assert(p);
4196     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4197
4198     if (PA_REFCNT_DEC(p) > 0)
4199         return;
4200
4201     while ((c = pa_idxset_first(p->connections, NULL)))
4202         native_connection_unlink(c);
4203
4204     pa_idxset_free(p->connections, NULL, NULL);
4205
4206     pa_strlist_free(p->servers);
4207
4208     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4209         pa_hook_done(&p->hooks[h]);
4210
4211     pa_hashmap_free(p->extensions, NULL, NULL);
4212
4213     pa_assert_se(pa_shared_remove(p->core, "native-protocol") >= 0);
4214
4215     pa_xfree(p);
4216 }
4217
4218 void pa_native_protocol_add_server_string(pa_native_protocol *p, const char *name) {
4219     pa_assert(p);
4220     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4221     pa_assert(name);
4222
4223     p->servers = pa_strlist_prepend(p->servers, name);
4224
4225     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4226 }
4227
4228 void pa_native_protocol_remove_server_string(pa_native_protocol *p, const char *name) {
4229     pa_assert(p);
4230     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4231     pa_assert(name);
4232
4233     p->servers = pa_strlist_remove(p->servers, name);
4234
4235     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4236 }
4237
4238 pa_hook *pa_native_protocol_hooks(pa_native_protocol *p) {
4239     pa_assert(p);
4240     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4241
4242     return p->hooks;
4243 }
4244
4245 pa_strlist *pa_native_protocol_servers(pa_native_protocol *p) {
4246     pa_assert(p);
4247     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4248
4249     return p->servers;
4250 }
4251
4252 int pa_native_protocol_install_ext(pa_native_protocol *p, pa_module *m, pa_native_protocol_ext_cb_t cb) {
4253     pa_assert(p);
4254     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4255     pa_assert(m);
4256     pa_assert(cb);
4257     pa_assert(!pa_hashmap_get(p->extensions, m));
4258
4259     pa_assert_se(pa_hashmap_put(p->extensions, m, (void*) cb) == 0);
4260     return 0;
4261 }
4262
4263 void pa_native_protocol_remove_ext(pa_native_protocol *p, pa_module *m) {
4264     pa_assert(p);
4265     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4266     pa_assert(m);
4267
4268     pa_assert_se(pa_hashmap_remove(p->extensions, m));
4269 }
4270
4271 pa_native_options* pa_native_options_new(void) {
4272     pa_native_options *o;
4273
4274     o = pa_xnew0(pa_native_options, 1);
4275     PA_REFCNT_INIT(o);
4276
4277     return o;
4278 }
4279
4280 pa_native_options* pa_native_options_ref(pa_native_options *o) {
4281     pa_assert(o);
4282     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4283
4284     PA_REFCNT_INC(o);
4285
4286     return o;
4287 }
4288
4289 void pa_native_options_unref(pa_native_options *o) {
4290     pa_assert(o);
4291     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4292
4293     if (PA_REFCNT_DEC(o) > 0)
4294         return;
4295
4296     pa_xfree(o->auth_group);
4297
4298     if (o->auth_ip_acl)
4299         pa_ip_acl_free(o->auth_ip_acl);
4300
4301     if (o->auth_cookie)
4302         pa_auth_cookie_unref(o->auth_cookie);
4303
4304     pa_xfree(o);
4305 }
4306
4307 int pa_native_options_parse(pa_native_options *o, pa_core *c, pa_modargs *ma) {
4308     pa_bool_t enabled;
4309     const char *acl;
4310
4311     pa_assert(o);
4312     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4313     pa_assert(ma);
4314
4315     if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &o->auth_anonymous) < 0) {
4316         pa_log("auth-anonymous= expects a boolean argument.");
4317         return -1;
4318     }
4319
4320     enabled = TRUE;
4321     if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &enabled) < 0) {
4322         pa_log("auth-group-enabled= expects a boolean argument.");
4323         return -1;
4324     }
4325
4326     pa_xfree(o->auth_group);
4327     o->auth_group = enabled ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL;
4328
4329 #ifndef HAVE_CREDS
4330     if (o->auth_group)
4331         pa_log_warn("Authentication group configured, but not available on local system. Ignoring.");
4332 #endif
4333
4334     if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) {
4335         pa_ip_acl *ipa;
4336
4337         if (!(ipa = pa_ip_acl_new(acl))) {
4338             pa_log("Failed to parse IP ACL '%s'", acl);
4339             return -1;
4340         }
4341
4342         if (o->auth_ip_acl)
4343             pa_ip_acl_free(o->auth_ip_acl);
4344
4345         o->auth_ip_acl = ipa;
4346     }
4347
4348     enabled = TRUE;
4349     if (pa_modargs_get_value_boolean(ma, "auth-cookie-enabled", &enabled) < 0) {
4350         pa_log("auth-cookie-enabled= expects a boolean argument.");
4351         return -1;
4352     }
4353
4354     if (o->auth_cookie)
4355         pa_auth_cookie_unref(o->auth_cookie);
4356
4357     if (enabled) {
4358         const char *cn;
4359
4360         /* The new name for this is 'auth-cookie', for compat reasons
4361          * we check the old name too */
4362         if (!(cn = pa_modargs_get_value(ma, "auth-cookie", NULL)))
4363             if (!(cn = pa_modargs_get_value(ma, "cookie", NULL)))
4364                 cn = PA_NATIVE_COOKIE_FILE;
4365
4366         if (!(o->auth_cookie = pa_auth_cookie_get(c, cn, PA_NATIVE_COOKIE_LENGTH)))
4367             return -1;
4368
4369     } else
4370           o->auth_cookie = NULL;
4371
4372     return 0;
4373 }
4374
4375 pa_pstream* pa_native_connection_get_pstream(pa_native_connection *c) {
4376     pa_native_connection_assert_ref(c);
4377
4378     return c->pstream;
4379 }