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

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