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