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/strlist.h>
  53 #include <pulsecore/shared.h>
  54 #include <pulsecore/sample-util.h>
  55 #include <pulsecore/llist.h>
  56 #include <pulsecore/creds.h>
  57 #include <pulsecore/core-util.h>
  58 #include <pulsecore/ipacl.h>
  59 #include <pulsecore/thread-mq.h>
  60
  61 #include "protocol-native.h"
  62
  63 /* Kick a client if it doesn't authenticate within this time */
  64 #define AUTH_TIMEOUT 60
  65
  66 /* Don't accept more connection than this */
  67 #define MAX_CONNECTIONS 64
  68
  69 #define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */
  70 #define DEFAULT_TLENGTH_MSEC 2000 /* 2s */
  71 #define DEFAULT_PROCESS_MSEC 20   /* 20ms */
  72 #define DEFAULT_FRAGSIZE_MSEC DEFAULT_TLENGTH_MSEC
  73
  74 struct pa_native_protocol;
  75
  76 typedef struct record_stream {
  77     pa_msgobject parent;
  78
  79     pa_native_connection *connection;
  80     uint32_t index;
  81
  82     pa_source_output *source_output;
  83     pa_memblockq *memblockq;
  84     size_t fragment_size;
  85     pa_usec_t source_latency;
  86 } record_stream;
  87
  88 PA_DECLARE_CLASS(record_stream);
  89 #define RECORD_STREAM(o) (record_stream_cast(o))
  90 static PA_DEFINE_CHECK_TYPE(record_stream, pa_msgobject);
  91
  92 typedef struct output_stream {
  93     pa_msgobject parent;
  94 } output_stream;
  95
  96 PA_DECLARE_CLASS(output_stream);
  97 #define OUTPUT_STREAM(o) (output_stream_cast(o))
  98 static PA_DEFINE_CHECK_TYPE(output_stream, pa_msgobject);
  99
 100 typedef struct playback_stream {
 101     output_stream parent;
 102
 103     pa_native_connection *connection;
 104     uint32_t index;
 105
 106     pa_sink_input *sink_input;
 107     pa_memblockq *memblockq;
 108     pa_bool_t is_underrun:1;
 109     pa_bool_t drain_request:1;
 110     uint32_t drain_tag;
 111     uint32_t syncid;
 112
 113     pa_atomic_t missing;
 114     size_t minreq;
 115     pa_usec_t sink_latency;
 116
 117     /* Only updated after SINK_INPUT_MESSAGE_UPDATE_LATENCY */
 118     int64_t read_index, write_index;
 119     size_t render_memblockq_length;
 120 } playback_stream;
 121
 122 PA_DECLARE_CLASS(playback_stream);
 123 #define PLAYBACK_STREAM(o) (playback_stream_cast(o))
 124 static PA_DEFINE_CHECK_TYPE(playback_stream, output_stream);
 125
 126 typedef struct upload_stream {
 127     output_stream parent;
 128
 129     pa_native_connection *connection;
 130     uint32_t index;
 131
 132     pa_memchunk memchunk;
 133     size_t length;
 134     char *name;
 135     pa_sample_spec sample_spec;
 136     pa_channel_map channel_map;
 137     pa_proplist *proplist;
 138 } upload_stream;
 139
 140 PA_DECLARE_CLASS(upload_stream);
 141 #define UPLOAD_STREAM(o) (upload_stream_cast(o))
 142 static PA_DEFINE_CHECK_TYPE(upload_stream, output_stream);
 143
 144 struct pa_native_connection {
 145     pa_msgobject parent;
 146     pa_native_protocol *protocol;
 147     pa_native_options *options;
 148     pa_bool_t authorized:1;
 149     pa_bool_t is_local:1;
 150     uint32_t version;
 151     pa_client *client;
 152     pa_pstream *pstream;
 153     pa_pdispatch *pdispatch;
 154     pa_idxset *record_streams, *output_streams;
 155     uint32_t rrobin_index;
 156     pa_subscription *subscription;
 157     pa_time_event *auth_timeout_event;
 158 };
 159
 160 PA_DECLARE_CLASS(pa_native_connection);
 161 #define PA_NATIVE_CONNECTION(o) (pa_native_connection_cast(o))
 162 static PA_DEFINE_CHECK_TYPE(pa_native_connection, pa_msgobject);
 163
 164 struct pa_native_protocol {
 165     PA_REFCNT_DECLARE;
 166
 167     pa_core *core;
 168     pa_idxset *connections;
 169
 170     pa_strlist *servers;
 171     pa_hook hooks[PA_NATIVE_HOOK_MAX];
 172
 173     pa_hashmap *extensions;
 174 };
 175
 176 enum {
 177     SINK_INPUT_MESSAGE_POST_DATA = PA_SINK_INPUT_MESSAGE_MAX, /* data from main loop to sink input */
 178     SINK_INPUT_MESSAGE_DRAIN, /* disabled prebuf, get playback started. */
 179     SINK_INPUT_MESSAGE_FLUSH,
 180     SINK_INPUT_MESSAGE_TRIGGER,
 181     SINK_INPUT_MESSAGE_SEEK,
 182     SINK_INPUT_MESSAGE_PREBUF_FORCE,
 183     SINK_INPUT_MESSAGE_UPDATE_LATENCY
 184 };
 185
 186 enum {
 187     PLAYBACK_STREAM_MESSAGE_REQUEST_DATA,      /* data requested from sink input from the main loop */
 188     PLAYBACK_STREAM_MESSAGE_UNDERFLOW,
 189     PLAYBACK_STREAM_MESSAGE_OVERFLOW,
 190     PLAYBACK_STREAM_MESSAGE_DRAIN_ACK,
 191     PLAYBACK_STREAM_MESSAGE_STARTED
 192 };
 193
 194 enum {
 195     RECORD_STREAM_MESSAGE_POST_DATA         /* data from source output to main loop */
 196 };
 197
 198 enum {
 199     CONNECTION_MESSAGE_RELEASE,
 200     CONNECTION_MESSAGE_REVOKE
 201 };
 202
 203 static int sink_input_pop_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk);
 204 static void sink_input_kill_cb(pa_sink_input *i);
 205 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend);
 206 static void sink_input_moved_cb(pa_sink_input *i);
 207 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes);
 208 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes);
 209 static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes);
 210
 211 static void native_connection_send_memblock(pa_native_connection *c);
 212 static void playback_stream_request_bytes(struct playback_stream*s);
 213
 214 static void source_output_kill_cb(pa_source_output *o);
 215 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk);
 216 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend);
 217 static void source_output_moved_cb(pa_source_output *o);
 218 static pa_usec_t source_output_get_latency_cb(pa_source_output *o);
 219
 220 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
 221
 222 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 223 static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 224 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 225 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 226 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 227 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 228 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 229 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 230 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 231 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 232 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 233 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 234 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 235 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 236 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 237 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 238 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 239 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 240 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 241 static void command_set_volume(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 242 static void command_set_mute(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 243 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 244 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 245 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 246 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 247 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 248 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 249 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 250 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 251 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 252 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 253 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 254 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 255 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 256 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 257 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 258 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 259 static void command_set_card_profile(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 260
 261 static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
 262     [PA_COMMAND_ERROR] = NULL,
 263     [PA_COMMAND_TIMEOUT] = NULL,
 264     [PA_COMMAND_REPLY] = NULL,
 265     [PA_COMMAND_CREATE_PLAYBACK_STREAM] = command_create_playback_stream,
 266     [PA_COMMAND_DELETE_PLAYBACK_STREAM] = command_delete_stream,
 267     [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = command_drain_playback_stream,
 268     [PA_COMMAND_CREATE_RECORD_STREAM] = command_create_record_stream,
 269     [PA_COMMAND_DELETE_RECORD_STREAM] = command_delete_stream,
 270     [PA_COMMAND_AUTH] = command_auth,
 271     [PA_COMMAND_REQUEST] = NULL,
 272     [PA_COMMAND_EXIT] = command_exit,
 273     [PA_COMMAND_SET_CLIENT_NAME] = command_set_client_name,
 274     [PA_COMMAND_LOOKUP_SINK] = command_lookup,
 275     [PA_COMMAND_LOOKUP_SOURCE] = command_lookup,
 276     [PA_COMMAND_STAT] = command_stat,
 277     [PA_COMMAND_GET_PLAYBACK_LATENCY] = command_get_playback_latency,
 278     [PA_COMMAND_GET_RECORD_LATENCY] = command_get_record_latency,
 279     [PA_COMMAND_CREATE_UPLOAD_STREAM] = command_create_upload_stream,
 280     [PA_COMMAND_DELETE_UPLOAD_STREAM] = command_delete_stream,
 281     [PA_COMMAND_FINISH_UPLOAD_STREAM] = command_finish_upload_stream,
 282     [PA_COMMAND_PLAY_SAMPLE] = command_play_sample,
 283     [PA_COMMAND_REMOVE_SAMPLE] = command_remove_sample,
 284     [PA_COMMAND_GET_SINK_INFO] = command_get_info,
 285     [PA_COMMAND_GET_SOURCE_INFO] = command_get_info,
 286     [PA_COMMAND_GET_CLIENT_INFO] = command_get_info,
 287     [PA_COMMAND_GET_CARD_INFO] = command_get_info,
 288     [PA_COMMAND_GET_MODULE_INFO] = command_get_info,
 289     [PA_COMMAND_GET_SINK_INPUT_INFO] = command_get_info,
 290     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = command_get_info,
 291     [PA_COMMAND_GET_SAMPLE_INFO] = command_get_info,
 292     [PA_COMMAND_GET_SINK_INFO_LIST] = command_get_info_list,
 293     [PA_COMMAND_GET_SOURCE_INFO_LIST] = command_get_info_list,
 294     [PA_COMMAND_GET_MODULE_INFO_LIST] = command_get_info_list,
 295     [PA_COMMAND_GET_CLIENT_INFO_LIST] = command_get_info_list,
 296     [PA_COMMAND_GET_CARD_INFO_LIST] = command_get_info_list,
 297     [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = command_get_info_list,
 298     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = command_get_info_list,
 299     [PA_COMMAND_GET_SAMPLE_INFO_LIST] = command_get_info_list,
 300     [PA_COMMAND_GET_SERVER_INFO] = command_get_server_info,
 301     [PA_COMMAND_SUBSCRIBE] = command_subscribe,
 302
 303     [PA_COMMAND_SET_SINK_VOLUME] = command_set_volume,
 304     [PA_COMMAND_SET_SINK_INPUT_VOLUME] = command_set_volume,
 305     [PA_COMMAND_SET_SOURCE_VOLUME] = command_set_volume,
 306
 307     [PA_COMMAND_SET_SINK_MUTE] = command_set_mute,
 308     [PA_COMMAND_SET_SINK_INPUT_MUTE] = command_set_mute,
 309     [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute,
 310
 311     [PA_COMMAND_SUSPEND_SINK] = command_suspend,
 312     [PA_COMMAND_SUSPEND_SOURCE] = command_suspend,
 313
 314     [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream,
 315     [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 316     [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 317     [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 318
 319     [PA_COMMAND_CORK_RECORD_STREAM] = command_cork_record_stream,
 320     [PA_COMMAND_FLUSH_RECORD_STREAM] = command_flush_record_stream,
 321
 322     [PA_COMMAND_SET_DEFAULT_SINK] = command_set_default_sink_or_source,
 323     [PA_COMMAND_SET_DEFAULT_SOURCE] = command_set_default_sink_or_source,
 324     [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = command_set_stream_name,
 325     [PA_COMMAND_SET_RECORD_STREAM_NAME] = command_set_stream_name,
 326     [PA_COMMAND_KILL_CLIENT] = command_kill,
 327     [PA_COMMAND_KILL_SINK_INPUT] = command_kill,
 328     [PA_COMMAND_KILL_SOURCE_OUTPUT] = command_kill,
 329     [PA_COMMAND_LOAD_MODULE] = command_load_module,
 330     [PA_COMMAND_UNLOAD_MODULE] = command_unload_module,
 331
 332     [PA_COMMAND_GET_AUTOLOAD_INFO___OBSOLETE] = NULL,
 333     [PA_COMMAND_GET_AUTOLOAD_INFO_LIST___OBSOLETE] = NULL,
 334     [PA_COMMAND_ADD_AUTOLOAD___OBSOLETE] = NULL,
 335     [PA_COMMAND_REMOVE_AUTOLOAD___OBSOLETE] = NULL,
 336
 337     [PA_COMMAND_MOVE_SINK_INPUT] = command_move_stream,
 338     [PA_COMMAND_MOVE_SOURCE_OUTPUT] = command_move_stream,
 339
 340     [PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 341     [PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 342
 343     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 344     [PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 345
 346     [PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST] = command_update_proplist,
 347     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST] = command_update_proplist,
 348     [PA_COMMAND_UPDATE_CLIENT_PROPLIST] = command_update_proplist,
 349
 350     [PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST] = command_remove_proplist,
 351     [PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST] = command_remove_proplist,
 352     [PA_COMMAND_REMOVE_CLIENT_PROPLIST] = command_remove_proplist,
 353
 354     [PA_COMMAND_SET_CARD_PROFILE] = command_set_card_profile,
 355
 356     [PA_COMMAND_EXTENSION] = command_extension
 357 };
 358
 359 /* structure management */
 360
 361 static void upload_stream_unlink(upload_stream *s) {
 362     pa_assert(s);
 363
 364     if (!s->connection)
 365         return;
 366
 367     pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s);
 368     s->connection = NULL;
 369     upload_stream_unref(s);
 370 }
 371
 372 static void upload_stream_free(pa_object *o) {
 373     upload_stream *s = UPLOAD_STREAM(o);
 374     pa_assert(s);
 375
 376     upload_stream_unlink(s);
 377
 378     pa_xfree(s->name);
 379
 380     if (s->proplist)
 381         pa_proplist_free(s->proplist);
 382
 383     if (s->memchunk.memblock)
 384         pa_memblock_unref(s->memchunk.memblock);
 385
 386     pa_xfree(s);
 387 }
 388
 389 static upload_stream* upload_stream_new(
 390         pa_native_connection *c,
 391         const pa_sample_spec *ss,
 392         const pa_channel_map *map,
 393         const char *name,
 394         size_t length,
 395         pa_proplist *p) {
 396
 397     upload_stream *s;
 398
 399     pa_assert(c);
 400     pa_assert(ss);
 401     pa_assert(name);
 402     pa_assert(length > 0);
 403     pa_assert(p);
 404
 405     s = pa_msgobject_new(upload_stream);
 406     s->parent.parent.parent.free = upload_stream_free;
 407     s->connection = c;
 408     s->sample_spec = *ss;
 409     s->channel_map = *map;
 410     s->name = pa_xstrdup(name);
 411     pa_memchunk_reset(&s->memchunk);
 412     s->length = length;
 413     s->proplist = pa_proplist_copy(p);
 414     pa_proplist_update(s->proplist, PA_UPDATE_MERGE, c->client->proplist);
 415
 416     pa_idxset_put(c->output_streams, s, &s->index);
 417
 418     return s;
 419 }
 420
 421 static void record_stream_unlink(record_stream *s) {
 422     pa_assert(s);
 423
 424     if (!s->connection)
 425         return;
 426
 427     if (s->source_output) {
 428         pa_source_output_unlink(s->source_output);
 429         pa_source_output_unref(s->source_output);
 430         s->source_output = NULL;
 431     }
 432
 433     pa_assert_se(pa_idxset_remove_by_data(s->connection->record_streams, s, NULL) == s);
 434     s->connection = NULL;
 435     record_stream_unref(s);
 436 }
 437
 438 static void record_stream_free(pa_object *o) {
 439     record_stream *s = RECORD_STREAM(o);
 440     pa_assert(s);
 441
 442     record_stream_unlink(s);
 443
 444     pa_memblockq_free(s->memblockq);
 445     pa_xfree(s);
 446 }
 447
 448 static int record_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
 449     record_stream *s = RECORD_STREAM(o);
 450     record_stream_assert_ref(s);
 451
 452     if (!s->connection)
 453         return -1;
 454
 455     switch (code) {
 456
 457         case RECORD_STREAM_MESSAGE_POST_DATA:
 458
 459             if (pa_memblockq_push_align(s->memblockq, chunk) < 0) {
 460 /*                 pa_log_warn("Failed to push data into output queue."); */
 461                 return -1;
 462             }
 463
 464             if (!pa_pstream_is_pending(s->connection->pstream))
 465                 native_connection_send_memblock(s->connection);
 466
 467             break;
 468     }
 469
 470     return 0;
 471 }
 472
 473 static void fix_record_buffer_attr_pre(
 474         record_stream *s,
 475         pa_bool_t adjust_latency,
 476         pa_bool_t early_requests,
 477         uint32_t *maxlength,
 478         uint32_t *fragsize) {
 479
 480     size_t frame_size;
 481     pa_usec_t orig_fragsize_usec, fragsize_usec, source_usec;
 482
 483     pa_assert(s);
 484     pa_assert(maxlength);
 485     pa_assert(fragsize);
 486
 487     frame_size = pa_frame_size(&s->source_output->sample_spec);
 488
 489     if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 490         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 491     if (*maxlength <= 0)
 492         *maxlength = (uint32_t) frame_size;
 493
 494     if (*fragsize == (uint32_t) -1)
 495         *fragsize = (uint32_t) pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*PA_USEC_PER_MSEC, &s->source_output->sample_spec);
 496     if (*fragsize <= 0)
 497         *fragsize = (uint32_t) frame_size;
 498
 499     orig_fragsize_usec = fragsize_usec = pa_bytes_to_usec(*fragsize, &s->source_output->sample_spec);
 500
 501     if (early_requests) {
 502
 503         /* In early request mode we need to emulate the classic
 504          * fragment-based playback model. We do this setting the source
 505          * latency to the fragment size. */
 506
 507         source_usec = fragsize_usec;
 508
 509     } else if (adjust_latency) {
 510
 511         /* So, the user asked us to adjust the latency according to
 512          * what the source can provide. Half the latency will be
 513          * spent on the hw buffer, half of it in the async buffer
 514          * queue we maintain for each client. */
 515
 516         source_usec = fragsize_usec/2;
 517
 518     } else {
 519
 520         /* Ok, the user didn't ask us to adjust the latency, hence we
 521          * don't */
 522
 523         source_usec = 0;
 524     }
 525
 526     if (source_usec > 0)
 527         s->source_latency = pa_source_output_set_requested_latency(s->source_output, source_usec);
 528     else
 529         s->source_latency = 0;
 530
 531     if (early_requests) {
 532
 533         /* Ok, we didn't necessarily get what we were asking for, so
 534          * let's tell the user */
 535
 536         fragsize_usec = s->source_latency;
 537
 538     } else if (adjust_latency) {
 539
 540         /* Now subtract what we actually got */
 541
 542         if (fragsize_usec >= s->source_latency*2)
 543             fragsize_usec -= s->source_latency;
 544         else
 545             fragsize_usec = s->source_latency;
 546     }
 547
 548     if (pa_usec_to_bytes(orig_fragsize_usec, &s->source_output->sample_spec) !=
 549         pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec))
 550
 551         *fragsize = (uint32_t) pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec);
 552
 553     if (*fragsize <= 0)
 554         *fragsize = (uint32_t) frame_size;
 555 }
 556
 557 static void fix_record_buffer_attr_post(
 558         record_stream *s,
 559         uint32_t *maxlength,
 560         uint32_t *fragsize) {
 561
 562     size_t base;
 563
 564     pa_assert(s);
 565     pa_assert(maxlength);
 566     pa_assert(fragsize);
 567
 568     *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
 569
 570     base = pa_frame_size(&s->source_output->sample_spec);
 571
 572     s->fragment_size = (*fragsize/base)*base;
 573     if (s->fragment_size <= 0)
 574         s->fragment_size = base;
 575
 576     if (s->fragment_size > *maxlength)
 577         s->fragment_size = *maxlength;
 578
 579     *fragsize = (uint32_t) s->fragment_size;
 580 }
 581
 582 static record_stream* record_stream_new(
 583         pa_native_connection *c,
 584         pa_source *source,
 585         pa_sample_spec *ss,
 586         pa_channel_map *map,
 587         pa_bool_t peak_detect,
 588         uint32_t *maxlength,
 589         uint32_t *fragsize,
 590         pa_source_output_flags_t flags,
 591         pa_proplist *p,
 592         pa_bool_t adjust_latency,
 593         pa_sink_input *direct_on_input,
 594         pa_bool_t early_requests,
 595         int *ret) {
 596
 597     record_stream *s;
 598     pa_source_output *source_output = NULL;
 599     size_t base;
 600     pa_source_output_new_data data;
 601
 602     pa_assert(c);
 603     pa_assert(ss);
 604     pa_assert(maxlength);
 605     pa_assert(p);
 606     pa_assert(ret);
 607
 608     pa_source_output_new_data_init(&data);
 609
 610     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
 611     data.driver = __FILE__;
 612     data.module = c->options->module;
 613     data.client = c->client;
 614     data.source = source;
 615     data.direct_on_input = direct_on_input;
 616     pa_source_output_new_data_set_sample_spec(&data, ss);
 617     pa_source_output_new_data_set_channel_map(&data, map);
 618     if (peak_detect)
 619         data.resample_method = PA_RESAMPLER_PEAKS;
 620
 621     *ret = -pa_source_output_new(&source_output, c->protocol->core, &data, flags);
 622
 623     pa_source_output_new_data_done(&data);
 624
 625     if (!source_output)
 626         return NULL;
 627
 628     s = pa_msgobject_new(record_stream);
 629     s->parent.parent.free = record_stream_free;
 630     s->parent.process_msg = record_stream_process_msg;
 631     s->connection = c;
 632     s->source_output = source_output;
 633
 634     s->source_output->push = source_output_push_cb;
 635     s->source_output->kill = source_output_kill_cb;
 636     s->source_output->get_latency = source_output_get_latency_cb;
 637     s->source_output->moved = source_output_moved_cb;
 638     s->source_output->suspend = source_output_suspend_cb;
 639     s->source_output->userdata = s;
 640
 641     fix_record_buffer_attr_pre(s, adjust_latency, early_requests, maxlength, fragsize);
 642
 643     s->memblockq = pa_memblockq_new(
 644             0,
 645             *maxlength,
 646             0,
 647             base = pa_frame_size(&source_output->sample_spec),
 648             1,
 649             0,
 650             0,
 651             NULL);
 652
 653     fix_record_buffer_attr_post(s, maxlength, fragsize);
 654
 655     *ss = s->source_output->sample_spec;
 656     *map = s->source_output->channel_map;
 657
 658     pa_idxset_put(c->record_streams, s, &s->index);
 659
 660     pa_log_info("Final latency %0.2f ms = %0.2f ms + %0.2f ms",
 661                 ((double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) + (double) s->source_latency) / PA_USEC_PER_MSEC,
 662                 (double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) / PA_USEC_PER_MSEC,
 663                 (double) s->source_latency / PA_USEC_PER_MSEC);
 664
 665     pa_source_output_put(s->source_output);
 666     return s;
 667 }
 668
 669 static void record_stream_send_killed(record_stream *r) {
 670     pa_tagstruct *t;
 671     record_stream_assert_ref(r);
 672
 673     t = pa_tagstruct_new(NULL, 0);
 674     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED);
 675     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 676     pa_tagstruct_putu32(t, r->index);
 677     pa_pstream_send_tagstruct(r->connection->pstream, t);
 678 }
 679
 680 static void playback_stream_unlink(playback_stream *s) {
 681     pa_assert(s);
 682
 683     if (!s->connection)
 684         return;
 685
 686     if (s->sink_input) {
 687         pa_sink_input_unlink(s->sink_input);
 688         pa_sink_input_unref(s->sink_input);
 689         s->sink_input = NULL;
 690     }
 691
 692     if (s->drain_request)
 693         pa_pstream_send_error(s->connection->pstream, s->drain_tag, PA_ERR_NOENTITY);
 694
 695     pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s);
 696     s->connection = NULL;
 697     playback_stream_unref(s);
 698 }
 699
 700 static void playback_stream_free(pa_object* o) {
 701     playback_stream *s = PLAYBACK_STREAM(o);
 702     pa_assert(s);
 703
 704     playback_stream_unlink(s);
 705
 706     pa_memblockq_free(s->memblockq);
 707     pa_xfree(s);
 708 }
 709
 710 static int playback_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
 711     playback_stream *s = PLAYBACK_STREAM(o);
 712     playback_stream_assert_ref(s);
 713
 714     if (!s->connection)
 715         return -1;
 716
 717     switch (code) {
 718         case PLAYBACK_STREAM_MESSAGE_REQUEST_DATA: {
 719             pa_tagstruct *t;
 720             uint32_t l = 0;
 721
 722             for (;;) {
 723                 if ((l = (uint32_t) pa_atomic_load(&s->missing)) <= 0)
 724                     break;
 725
 726                 if (pa_atomic_cmpxchg(&s->missing, (int) l, 0))
 727                     break;
 728             }
 729
 730             if (l <= 0)
 731                 break;
 732
 733             t = pa_tagstruct_new(NULL, 0);
 734             pa_tagstruct_putu32(t, PA_COMMAND_REQUEST);
 735             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 736             pa_tagstruct_putu32(t, s->index);
 737             pa_tagstruct_putu32(t, l);
 738             pa_pstream_send_tagstruct(s->connection->pstream, t);
 739
 740 /*             pa_log("Requesting %lu bytes", (unsigned long) l); */
 741             break;
 742         }
 743
 744         case PLAYBACK_STREAM_MESSAGE_UNDERFLOW: {
 745             pa_tagstruct *t;
 746
 747 /*             pa_log("signalling underflow"); */
 748
 749             /* Report that we're empty */
 750             t = pa_tagstruct_new(NULL, 0);
 751             pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW);
 752             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 753             pa_tagstruct_putu32(t, s->index);
 754             pa_pstream_send_tagstruct(s->connection->pstream, t);
 755             break;
 756         }
 757
 758         case PLAYBACK_STREAM_MESSAGE_OVERFLOW: {
 759             pa_tagstruct *t;
 760
 761             /* Notify the user we're overflowed*/
 762             t = pa_tagstruct_new(NULL, 0);
 763             pa_tagstruct_putu32(t, PA_COMMAND_OVERFLOW);
 764             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 765             pa_tagstruct_putu32(t, s->index);
 766             pa_pstream_send_tagstruct(s->connection->pstream, t);
 767             break;
 768         }
 769
 770         case PLAYBACK_STREAM_MESSAGE_STARTED:
 771
 772             if (s->connection->version >= 13) {
 773                 pa_tagstruct *t;
 774
 775                 /* Notify the user we're overflowed*/
 776                 t = pa_tagstruct_new(NULL, 0);
 777                 pa_tagstruct_putu32(t, PA_COMMAND_STARTED);
 778                 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 779                 pa_tagstruct_putu32(t, s->index);
 780                 pa_pstream_send_tagstruct(s->connection->pstream, t);
 781             }
 782
 783             break;
 784
 785         case PLAYBACK_STREAM_MESSAGE_DRAIN_ACK:
 786             pa_pstream_send_simple_ack(s->connection->pstream, PA_PTR_TO_UINT(userdata));
 787             break;
 788     }
 789
 790     return 0;
 791 }
 792
 793 static void fix_playback_buffer_attr_pre(
 794         playback_stream *s,
 795         pa_bool_t adjust_latency,
 796         pa_bool_t early_requests,
 797         uint32_t *maxlength,
 798         uint32_t *tlength,
 799         uint32_t* prebuf,
 800         uint32_t* minreq) {
 801
 802     size_t frame_size;
 803     pa_usec_t orig_tlength_usec, tlength_usec, orig_minreq_usec, minreq_usec, sink_usec;
 804
 805     pa_assert(s);
 806     pa_assert(maxlength);
 807     pa_assert(tlength);
 808     pa_assert(prebuf);
 809     pa_assert(minreq);
 810
 811     frame_size = pa_frame_size(&s->sink_input->sample_spec);
 812
 813     if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 814         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 815     if (*maxlength <= 0)
 816         *maxlength = (uint32_t) frame_size;
 817
 818     if (*tlength == (uint32_t) -1)
 819         *tlength = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_TLENGTH_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec);
 820     if (*tlength <= 0)
 821         *tlength = (uint32_t) frame_size;
 822
 823     if (*minreq == (uint32_t) -1)
 824         *minreq = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_PROCESS_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec);
 825     if (*minreq <= 0)
 826         *minreq = (uint32_t) frame_size;
 827
 828     if (*tlength < *minreq+frame_size)
 829         *tlength = *minreq+(uint32_t) frame_size;
 830
 831     orig_tlength_usec = tlength_usec = pa_bytes_to_usec(*tlength, &s->sink_input->sample_spec);
 832     orig_minreq_usec = minreq_usec = pa_bytes_to_usec(*minreq, &s->sink_input->sample_spec);
 833
 834     pa_log_info("Requested tlength=%0.2f ms, minreq=%0.2f ms",
 835                 (double) tlength_usec / PA_USEC_PER_MSEC,
 836                 (double) minreq_usec / PA_USEC_PER_MSEC);
 837
 838     if (early_requests) {
 839
 840         /* In early request mode we need to emulate the classic
 841          * fragment-based playback model. We do this setting the sink
 842          * latency to the fragment size. */
 843
 844         sink_usec = minreq_usec;
 845
 846         pa_log_debug("Early requests mode enabled, configuring sink latency to minreq.");
 847
 848     } else if (adjust_latency) {
 849
 850         /* So, the user asked us to adjust the latency of the stream
 851          * buffer according to the what the sink can provide. The
 852          * tlength passed in shall be the overall latency. Roughly
 853          * half the latency will be spent on the hw buffer, the other
 854          * half of it in the async buffer queue we maintain for each
 855          * client. In between we'll have a safety space of size
 856          * 2*minreq. Why the 2*minreq? When the hw buffer is completey
 857          * empty and needs to be filled, then our buffer must have
 858          * enough data to fulfill this request immediatly and thus
 859          * have at least the same tlength as the size of the hw
 860          * buffer. It additionally needs space for 2 times minreq
 861          * because if the buffer ran empty and a partial fillup
 862          * happens immediately on the next iteration we need to be
 863          * able to fulfill it and give the application also minreq
 864          * time to fill it up again for the next request Makes 2 times
 865          * minreq in plus.. */
 866
 867         if (tlength_usec > minreq_usec*2)
 868             sink_usec = (tlength_usec - minreq_usec*2)/2;
 869         else
 870             sink_usec = 0;
 871
 872         pa_log_debug("Adjust latency mode enabled, configuring sink latency to half of overall latency.");
 873
 874     } else {
 875
 876         /* Ok, the user didn't ask us to adjust the latency, but we
 877          * still need to make sure that the parameters from the user
 878          * do make sense. */
 879
 880         if (tlength_usec > minreq_usec*2)
 881             sink_usec = (tlength_usec - minreq_usec*2);
 882         else
 883             sink_usec = 0;
 884
 885         pa_log_debug("Traditional mode enabled, modifying sink usec only for compat with minreq.");
 886     }
 887
 888     s->sink_latency = pa_sink_input_set_requested_latency(s->sink_input, sink_usec);
 889
 890     if (early_requests) {
 891
 892         /* Ok, we didn't necessarily get what we were asking for, so
 893          * let's tell the user */
 894
 895         minreq_usec = s->sink_latency;
 896
 897     } else if (adjust_latency) {
 898
 899         /* Ok, we didn't necessarily get what we were asking for, so
 900          * let's subtract from what we asked for for the remaining
 901          * buffer space */
 902
 903         if (tlength_usec >= s->sink_latency)
 904             tlength_usec -= s->sink_latency;
 905     }
 906
 907     /* FIXME: This is actually larger than necessary, since not all of
 908      * the sink latency is actually rewritable. */
 909     if (tlength_usec < s->sink_latency + 2*minreq_usec)
 910         tlength_usec = s->sink_latency + 2*minreq_usec;
 911
 912     if (pa_usec_to_bytes_round_up(orig_tlength_usec, &s->sink_input->sample_spec) !=
 913         pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec))
 914         *tlength = (uint32_t) pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec);
 915
 916     if (pa_usec_to_bytes(orig_minreq_usec, &s->sink_input->sample_spec) !=
 917         pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec))
 918         *minreq = (uint32_t) pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec);
 919
 920     if (*minreq <= 0) {
 921         *minreq = (uint32_t) frame_size;
 922         *tlength += (uint32_t) frame_size*2;
 923     }
 924
 925     if (*tlength <= *minreq)
 926         *tlength = *minreq*2 + (uint32_t) frame_size;
 927
 928     if (*prebuf == (uint32_t) -1 || *prebuf > *tlength)
 929         *prebuf = *tlength;
 930 }
 931
 932 static void fix_playback_buffer_attr_post(
 933         playback_stream *s,
 934         uint32_t *maxlength,
 935         uint32_t *tlength,
 936         uint32_t* prebuf,
 937         uint32_t* minreq) {
 938
 939     pa_assert(s);
 940     pa_assert(maxlength);
 941     pa_assert(tlength);
 942     pa_assert(prebuf);
 943     pa_assert(minreq);
 944
 945     *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
 946     *tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq);
 947     *prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq);
 948     *minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq);
 949
 950     s->minreq = *minreq;
 951 }
 952
 953 static playback_stream* playback_stream_new(
 954         pa_native_connection *c,
 955         pa_sink *sink,
 956         pa_sample_spec *ss,
 957         pa_channel_map *map,
 958         uint32_t *maxlength,
 959         uint32_t *tlength,
 960         uint32_t *prebuf,
 961         uint32_t *minreq,
 962         pa_cvolume *volume,
 963         pa_bool_t muted,
 964         pa_bool_t muted_set,
 965         uint32_t syncid,
 966         uint32_t *missing,
 967         pa_sink_input_flags_t flags,
 968         pa_proplist *p,
 969         pa_bool_t adjust_latency,
 970         pa_bool_t early_requests,
 971         int *ret) {
 972
 973     playback_stream *s, *ssync;
 974     pa_sink_input *sink_input = NULL;
 975     pa_memchunk silence;
 976     uint32_t idx;
 977     int64_t start_index;
 978     pa_sink_input_new_data data;
 979
 980     pa_assert(c);
 981     pa_assert(ss);
 982     pa_assert(maxlength);
 983     pa_assert(tlength);
 984     pa_assert(prebuf);
 985     pa_assert(minreq);
 986     pa_assert(missing);
 987     pa_assert(p);
 988     pa_assert(ret);
 989
 990     /* Find syncid group */
 991     for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) {
 992
 993         if (!playback_stream_isinstance(ssync))
 994             continue;
 995
 996         if (ssync->syncid == syncid)
 997             break;
 998     }
 999
1000     /* Synced streams must connect to the same sink */
1001     if (ssync) {
1002
1003         if (!sink)
1004             sink = ssync->sink_input->sink;
1005         else if (sink != ssync->sink_input->sink) {
1006             *ret = PA_ERR_INVALID;
1007             return NULL;
1008         }
1009     }
1010
1011     pa_sink_input_new_data_init(&data);
1012
1013     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
1014     data.driver = __FILE__;
1015     data.module = c->options->module;
1016     data.client = c->client;
1017     data.sink = sink;
1018     pa_sink_input_new_data_set_sample_spec(&data, ss);
1019     pa_sink_input_new_data_set_channel_map(&data, map);
1020     if (volume)
1021         pa_sink_input_new_data_set_virtual_volume(&data, volume);
1022     if (muted_set)
1023         pa_sink_input_new_data_set_muted(&data, muted);
1024     data.sync_base = ssync ? ssync->sink_input : NULL;
1025
1026     *ret = -pa_sink_input_new(&sink_input, c->protocol->core, &data, flags);
1027
1028     pa_sink_input_new_data_done(&data);
1029
1030     if (!sink_input)
1031         return NULL;
1032
1033     s = pa_msgobject_new(playback_stream);
1034     s->parent.parent.parent.free = playback_stream_free;
1035     s->parent.parent.process_msg = playback_stream_process_msg;
1036     s->connection = c;
1037     s->syncid = syncid;
1038     s->sink_input = sink_input;
1039     s->is_underrun = TRUE;
1040     s->drain_request = FALSE;
1041     pa_atomic_store(&s->missing, 0);
1042
1043     s->sink_input->parent.process_msg = sink_input_process_msg;
1044     s->sink_input->pop = sink_input_pop_cb;
1045     s->sink_input->process_rewind = sink_input_process_rewind_cb;
1046     s->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
1047     s->sink_input->update_max_request = sink_input_update_max_request_cb;
1048     s->sink_input->kill = sink_input_kill_cb;
1049     s->sink_input->moved = sink_input_moved_cb;
1050     s->sink_input->suspend = sink_input_suspend_cb;
1051     s->sink_input->userdata = s;
1052
1053     start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 0;
1054
1055     fix_playback_buffer_attr_pre(s, adjust_latency, early_requests, maxlength, tlength, prebuf, minreq);
1056     pa_sink_input_get_silence(sink_input, &silence);
1057
1058     s->memblockq = pa_memblockq_new(
1059             start_index,
1060             *maxlength,
1061             *tlength,
1062             pa_frame_size(&sink_input->sample_spec),
1063             *prebuf,
1064             *minreq,
1065             0,
1066             &silence);
1067
1068     pa_memblock_unref(silence.memblock);
1069     fix_playback_buffer_attr_post(s, maxlength, tlength, prebuf, minreq);
1070
1071     *missing = (uint32_t) pa_memblockq_pop_missing(s->memblockq);
1072
1073     *ss = s->sink_input->sample_spec;
1074     *map = s->sink_input->channel_map;
1075
1076     pa_idxset_put(c->output_streams, s, &s->index);
1077
1078     pa_log_info("Final latency %0.2f ms = %0.2f ms + 2*%0.2f ms + %0.2f ms",
1079                 ((double) pa_bytes_to_usec(*tlength, &sink_input->sample_spec) + (double) s->sink_latency) / PA_USEC_PER_MSEC,
1080                 (double) pa_bytes_to_usec(*tlength-*minreq*2, &sink_input->sample_spec) / PA_USEC_PER_MSEC,
1081                 (double) pa_bytes_to_usec(*minreq, &sink_input->sample_spec) / PA_USEC_PER_MSEC,
1082                 (double) s->sink_latency / PA_USEC_PER_MSEC);
1083
1084     pa_sink_input_put(s->sink_input);
1085     return s;
1086 }
1087
1088 /* Called from thread context */
1089 static void playback_stream_request_bytes(playback_stream *s) {
1090     size_t m, previous_missing;
1091
1092     playback_stream_assert_ref(s);
1093
1094     m = pa_memblockq_pop_missing(s->memblockq);
1095
1096     if (m <= 0)
1097         return;
1098
1099 /*     pa_log("request_bytes(%lu)", (unsigned long) m); */
1100
1101     previous_missing = (size_t) pa_atomic_add(&s->missing, (int) m);
1102
1103     if (pa_memblockq_prebuf_active(s->memblockq) ||
1104         (previous_missing < s->minreq && previous_missing+m >= s->minreq))
1105         pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL);
1106 }
1107
1108
1109 static void playback_stream_send_killed(playback_stream *p) {
1110     pa_tagstruct *t;
1111     playback_stream_assert_ref(p);
1112
1113     t = pa_tagstruct_new(NULL, 0);
1114     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED);
1115     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1116     pa_tagstruct_putu32(t, p->index);
1117     pa_pstream_send_tagstruct(p->connection->pstream, t);
1118 }
1119
1120 static int native_connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
1121     pa_native_connection *c = PA_NATIVE_CONNECTION(o);
1122     pa_native_connection_assert_ref(c);
1123
1124     if (!c->protocol)
1125         return -1;
1126
1127     switch (code) {
1128
1129         case CONNECTION_MESSAGE_REVOKE:
1130             pa_pstream_send_revoke(c->pstream, PA_PTR_TO_UINT(userdata));
1131             break;
1132
1133         case CONNECTION_MESSAGE_RELEASE:
1134             pa_pstream_send_release(c->pstream, PA_PTR_TO_UINT(userdata));
1135             break;
1136     }
1137
1138     return 0;
1139 }
1140
1141 static void native_connection_unlink(pa_native_connection *c) {
1142     record_stream *r;
1143     output_stream *o;
1144
1145     pa_assert(c);
1146
1147     if (!c->protocol)
1148         return;
1149
1150     pa_hook_fire(&c->protocol->hooks[PA_NATIVE_HOOK_CONNECTION_UNLINK], c);
1151
1152     if (c->options)
1153         pa_native_options_unref(c->options);
1154
1155     while ((r = pa_idxset_first(c->record_streams, NULL)))
1156         record_stream_unlink(r);
1157
1158     while ((o = pa_idxset_first(c->output_streams, NULL)))
1159         if (playback_stream_isinstance(o))
1160             playback_stream_unlink(PLAYBACK_STREAM(o));
1161         else
1162             upload_stream_unlink(UPLOAD_STREAM(o));
1163
1164     if (c->subscription)
1165         pa_subscription_free(c->subscription);
1166
1167     if (c->pstream)
1168         pa_pstream_unlink(c->pstream);
1169
1170     if (c->auth_timeout_event) {
1171         c->protocol->core->mainloop->time_free(c->auth_timeout_event);
1172         c->auth_timeout_event = NULL;
1173     }
1174
1175     pa_assert_se(pa_idxset_remove_by_data(c->protocol->connections, c, NULL) == c);
1176     c->protocol = NULL;
1177     pa_native_connection_unref(c);
1178 }
1179
1180 static void native_connection_free(pa_object *o) {
1181     pa_native_connection *c = PA_NATIVE_CONNECTION(o);
1182
1183     pa_assert(c);
1184
1185     native_connection_unlink(c);
1186
1187     pa_idxset_free(c->record_streams, NULL, NULL);
1188     pa_idxset_free(c->output_streams, NULL, NULL);
1189
1190     pa_pdispatch_unref(c->pdispatch);
1191     pa_pstream_unref(c->pstream);
1192     pa_client_free(c->client);
1193
1194     pa_xfree(c);
1195 }
1196
1197 static void native_connection_send_memblock(pa_native_connection *c) {
1198     uint32_t start;
1199     record_stream *r;
1200
1201     start = PA_IDXSET_INVALID;
1202     for (;;) {
1203         pa_memchunk chunk;
1204
1205         if (!(r = RECORD_STREAM(pa_idxset_rrobin(c->record_streams, &c->rrobin_index))))
1206             return;
1207
1208         if (start == PA_IDXSET_INVALID)
1209             start = c->rrobin_index;
1210         else if (start == c->rrobin_index)
1211             return;
1212
1213         if (pa_memblockq_peek(r->memblockq,  &chunk) >= 0) {
1214             pa_memchunk schunk = chunk;
1215
1216             if (schunk.length > r->fragment_size)
1217                 schunk.length = r->fragment_size;
1218
1219             pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk);
1220
1221             pa_memblockq_drop(r->memblockq, schunk.length);
1222             pa_memblock_unref(schunk.memblock);
1223
1224             return;
1225         }
1226     }
1227 }
1228
1229 /*** sink input callbacks ***/
1230
1231 static void handle_seek(playback_stream *s, int64_t indexw) {
1232     playback_stream_assert_ref(s);
1233
1234 /*     pa_log("handle_seek: %llu -- %i", (unsigned long long) s->sink_input->thread_info.underrun_for, pa_memblockq_is_readable(s->memblockq)); */
1235
1236     if (s->sink_input->thread_info.underrun_for > 0) {
1237
1238 /*         pa_log("%lu vs. %lu", (unsigned long) pa_memblockq_get_length(s->memblockq), (unsigned long) pa_memblockq_get_prebuf(s->memblockq)); */
1239
1240         if (pa_memblockq_is_readable(s->memblockq)) {
1241
1242             /* We just ended an underrun, let's ask the sink
1243              * for a complete rewind rewrite */
1244
1245             pa_log_debug("Requesting rewind due to end of underrun.");
1246             pa_sink_input_request_rewind(s->sink_input,
1247                                          (size_t) (s->sink_input->thread_info.underrun_for == (size_t) -1 ? 0 : s->sink_input->thread_info.underrun_for),
1248                                          FALSE, TRUE, FALSE);
1249         }
1250
1251     } else {
1252         int64_t indexr;
1253
1254         indexr = pa_memblockq_get_read_index(s->memblockq);
1255
1256         if (indexw < indexr) {
1257             /* OK, the sink already asked for this data, so
1258              * let's have it usk us again */
1259
1260             pa_log_debug("Requesting rewind due to rewrite.");
1261             pa_sink_input_request_rewind(s->sink_input, (size_t) (indexr - indexw), TRUE, FALSE, FALSE);
1262         }
1263     }
1264
1265     playback_stream_request_bytes(s);
1266 }
1267
1268 /* Called from thread context */
1269 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1270     pa_sink_input *i = PA_SINK_INPUT(o);
1271     playback_stream *s;
1272
1273     pa_sink_input_assert_ref(i);
1274     s = PLAYBACK_STREAM(i->userdata);
1275     playback_stream_assert_ref(s);
1276
1277     switch (code) {
1278
1279         case SINK_INPUT_MESSAGE_SEEK: {
1280             int64_t windex;
1281
1282             windex = pa_memblockq_get_write_index(s->memblockq);
1283             pa_memblockq_seek(s->memblockq, offset, PA_PTR_TO_UINT(userdata));
1284
1285             handle_seek(s, windex);
1286             return 0;
1287         }
1288
1289         case SINK_INPUT_MESSAGE_POST_DATA: {
1290             int64_t windex;
1291
1292             pa_assert(chunk);
1293
1294             windex = pa_memblockq_get_write_index(s->memblockq);
1295
1296 /*             pa_log("sink input post: %lu %lli", (unsigned long) chunk->length, (long long) windex); */
1297
1298             if (pa_memblockq_push_align(s->memblockq, chunk) < 0) {
1299                 pa_log_warn("Failed to push data into queue");
1300                 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_OVERFLOW, NULL, 0, NULL, NULL);
1301                 pa_memblockq_seek(s->memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE);
1302             }
1303
1304             handle_seek(s, windex);
1305
1306 /*             pa_log("sink input post2: %lu", (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1307
1308             return 0;
1309         }
1310
1311         case SINK_INPUT_MESSAGE_DRAIN:
1312         case SINK_INPUT_MESSAGE_FLUSH:
1313         case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1314         case SINK_INPUT_MESSAGE_TRIGGER: {
1315
1316             int64_t windex;
1317             pa_sink_input *isync;
1318             void (*func)(pa_memblockq *bq);
1319
1320             switch  (code) {
1321                 case SINK_INPUT_MESSAGE_FLUSH:
1322                     func = pa_memblockq_flush_write;
1323                     break;
1324
1325                 case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1326                     func = pa_memblockq_prebuf_force;
1327                     break;
1328
1329                 case SINK_INPUT_MESSAGE_DRAIN:
1330                 case SINK_INPUT_MESSAGE_TRIGGER:
1331                     func = pa_memblockq_prebuf_disable;
1332                     break;
1333
1334                 default:
1335                     pa_assert_not_reached();
1336             }
1337
1338             windex = pa_memblockq_get_write_index(s->memblockq);
1339             func(s->memblockq);
1340             handle_seek(s, windex);
1341
1342             /* Do the same for all other members in the sync group */
1343             for (isync = i->sync_prev; isync; isync = isync->sync_prev) {
1344                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1345                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1346                 func(ssync->memblockq);
1347                 handle_seek(ssync, windex);
1348             }
1349
1350             for (isync = i->sync_next; isync; isync = isync->sync_next) {
1351                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1352                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1353                 func(ssync->memblockq);
1354                 handle_seek(ssync, windex);
1355             }
1356
1357             if (code == SINK_INPUT_MESSAGE_DRAIN) {
1358                 if (!pa_memblockq_is_readable(s->memblockq))
1359                     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_DRAIN_ACK, userdata, 0, NULL, NULL);
1360                 else {
1361                     s->drain_tag = PA_PTR_TO_UINT(userdata);
1362                     s->drain_request = TRUE;
1363                 }
1364             }
1365
1366             return 0;
1367         }
1368
1369         case SINK_INPUT_MESSAGE_UPDATE_LATENCY:
1370
1371             s->read_index = pa_memblockq_get_read_index(s->memblockq);
1372             s->write_index = pa_memblockq_get_write_index(s->memblockq);
1373             s->render_memblockq_length = pa_memblockq_get_length(s->sink_input->thread_info.render_memblockq);
1374             return 0;
1375
1376         case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1377             int64_t windex;
1378
1379             windex = pa_memblockq_get_write_index(s->memblockq);
1380
1381             pa_memblockq_prebuf_force(s->memblockq);
1382
1383             handle_seek(s, windex);
1384
1385             /* Fall through to the default handler */
1386             break;
1387         }
1388
1389         case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1390             pa_usec_t *r = userdata;
1391
1392             *r = pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &i->sample_spec);
1393
1394             /* Fall through, the default handler will add in the extra
1395              * latency added by the resampler */
1396             break;
1397         }
1398     }
1399
1400     return pa_sink_input_process_msg(o, code, userdata, offset, chunk);
1401 }
1402
1403 /* Called from thread context */
1404 static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
1405     playback_stream *s;
1406
1407     pa_sink_input_assert_ref(i);
1408     s = PLAYBACK_STREAM(i->userdata);
1409     playback_stream_assert_ref(s);
1410     pa_assert(chunk);
1411
1412 /*     pa_log("%s, pop(): %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1413
1414     if (pa_memblockq_is_readable(s->memblockq))
1415         s->is_underrun = FALSE;
1416     else {
1417 /*         pa_log("%s, UNDERRUN: %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1418
1419         if (s->drain_request && pa_sink_input_safe_to_remove(i)) {
1420             s->drain_request = FALSE;
1421             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);
1422         } else if (!s->is_underrun)
1423             pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, 0, NULL, NULL);
1424
1425         s->is_underrun = TRUE;
1426
1427         playback_stream_request_bytes(s);
1428     }
1429
1430     /* This call will not fail with prebuf=0, hence we check for
1431        underrun explicitly above */
1432     if (pa_memblockq_peek(s->memblockq, chunk) < 0)
1433         return -1;
1434
1435     chunk->length = PA_MIN(nbytes, chunk->length);
1436
1437     if (i->thread_info.underrun_for > 0)
1438         pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_STARTED, NULL, 0, NULL, NULL);
1439
1440     pa_memblockq_drop(s->memblockq, chunk->length);
1441     playback_stream_request_bytes(s);
1442
1443     return 0;
1444 }
1445
1446 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
1447     playback_stream *s;
1448
1449     pa_sink_input_assert_ref(i);
1450     s = PLAYBACK_STREAM(i->userdata);
1451     playback_stream_assert_ref(s);
1452
1453     /* If we are in an underrun, then we don't rewind */
1454     if (i->thread_info.underrun_for > 0)
1455         return;
1456
1457     pa_memblockq_rewind(s->memblockq, nbytes);
1458 }
1459
1460 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
1461     playback_stream *s;
1462
1463     pa_sink_input_assert_ref(i);
1464     s = PLAYBACK_STREAM(i->userdata);
1465     playback_stream_assert_ref(s);
1466
1467     pa_memblockq_set_maxrewind(s->memblockq, nbytes);
1468 }
1469
1470 static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) {
1471     playback_stream *s;
1472     size_t tlength;
1473
1474     pa_sink_input_assert_ref(i);
1475     s = PLAYBACK_STREAM(i->userdata);
1476     playback_stream_assert_ref(s);
1477
1478     tlength = nbytes+2*pa_memblockq_get_minreq(s->memblockq);
1479
1480     if (pa_memblockq_get_tlength(s->memblockq) < tlength)
1481         pa_memblockq_set_tlength(s->memblockq, tlength);
1482 }
1483
1484 /* Called from main context */
1485 static void sink_input_kill_cb(pa_sink_input *i) {
1486     playback_stream *s;
1487
1488     pa_sink_input_assert_ref(i);
1489     s = PLAYBACK_STREAM(i->userdata);
1490     playback_stream_assert_ref(s);
1491
1492     playback_stream_send_killed(s);
1493     playback_stream_unlink(s);
1494 }
1495
1496 /* Called from main context */
1497 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend) {
1498     playback_stream *s;
1499     pa_tagstruct *t;
1500
1501     pa_sink_input_assert_ref(i);
1502     s = PLAYBACK_STREAM(i->userdata);
1503     playback_stream_assert_ref(s);
1504
1505     if (s->connection->version < 12)
1506       return;
1507
1508     t = pa_tagstruct_new(NULL, 0);
1509     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_SUSPENDED);
1510     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1511     pa_tagstruct_putu32(t, s->index);
1512     pa_tagstruct_put_boolean(t, suspend);
1513     pa_pstream_send_tagstruct(s->connection->pstream, t);
1514 }
1515
1516 /* Called from main context */
1517 static void sink_input_moved_cb(pa_sink_input *i) {
1518     playback_stream *s;
1519     pa_tagstruct *t;
1520     uint32_t maxlength, tlength, prebuf, minreq;
1521
1522     pa_sink_input_assert_ref(i);
1523     s = PLAYBACK_STREAM(i->userdata);
1524     playback_stream_assert_ref(s);
1525
1526     maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
1527     tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq);
1528     prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq);
1529     minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq);
1530
1531     fix_playback_buffer_attr_pre(s, TRUE, FALSE, &maxlength, &tlength, &prebuf, &minreq);
1532     pa_memblockq_set_maxlength(s->memblockq, maxlength);
1533     pa_memblockq_set_tlength(s->memblockq, tlength);
1534     pa_memblockq_set_prebuf(s->memblockq, prebuf);
1535     pa_memblockq_set_minreq(s->memblockq, minreq);
1536     fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
1537
1538     if (s->connection->version < 12)
1539       return;
1540
1541     t = pa_tagstruct_new(NULL, 0);
1542     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_MOVED);
1543     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1544     pa_tagstruct_putu32(t, s->index);
1545     pa_tagstruct_putu32(t, i->sink->index);
1546     pa_tagstruct_puts(t, i->sink->name);
1547     pa_tagstruct_put_boolean(t, pa_sink_get_state(i->sink) == PA_SINK_SUSPENDED);
1548
1549     if (s->connection->version >= 13) {
1550         pa_tagstruct_putu32(t, maxlength);
1551         pa_tagstruct_putu32(t, tlength);
1552         pa_tagstruct_putu32(t, prebuf);
1553         pa_tagstruct_putu32(t, minreq);
1554         pa_tagstruct_put_usec(t, s->sink_latency);
1555     }
1556
1557     pa_pstream_send_tagstruct(s->connection->pstream, t);
1558 }
1559
1560 /*** source_output callbacks ***/
1561
1562 /* Called from thread context */
1563 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
1564     record_stream *s;
1565
1566     pa_source_output_assert_ref(o);
1567     s = RECORD_STREAM(o->userdata);
1568     record_stream_assert_ref(s);
1569     pa_assert(chunk);
1570
1571     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), RECORD_STREAM_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
1572 }
1573
1574 static void source_output_kill_cb(pa_source_output *o) {
1575     record_stream *s;
1576
1577     pa_source_output_assert_ref(o);
1578     s = RECORD_STREAM(o->userdata);
1579     record_stream_assert_ref(s);
1580
1581     record_stream_send_killed(s);
1582     record_stream_unlink(s);
1583 }
1584
1585 static pa_usec_t source_output_get_latency_cb(pa_source_output *o) {
1586     record_stream *s;
1587
1588     pa_source_output_assert_ref(o);
1589     s = RECORD_STREAM(o->userdata);
1590     record_stream_assert_ref(s);
1591
1592     /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/
1593
1594     return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec);
1595 }
1596
1597 /* Called from main context */
1598 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend) {
1599     record_stream *s;
1600     pa_tagstruct *t;
1601
1602     pa_source_output_assert_ref(o);
1603     s = RECORD_STREAM(o->userdata);
1604     record_stream_assert_ref(s);
1605
1606     if (s->connection->version < 12)
1607       return;
1608
1609     t = pa_tagstruct_new(NULL, 0);
1610     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_SUSPENDED);
1611     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1612     pa_tagstruct_putu32(t, s->index);
1613     pa_tagstruct_put_boolean(t, suspend);
1614     pa_pstream_send_tagstruct(s->connection->pstream, t);
1615 }
1616
1617 /* Called from main context */
1618 static void source_output_moved_cb(pa_source_output *o) {
1619     record_stream *s;
1620     pa_tagstruct *t;
1621     uint32_t maxlength, fragsize;
1622
1623     pa_source_output_assert_ref(o);
1624     s = RECORD_STREAM(o->userdata);
1625     record_stream_assert_ref(s);
1626
1627     fragsize = (uint32_t) s->fragment_size;
1628     maxlength = (uint32_t) pa_memblockq_get_length(s->memblockq);
1629
1630     fix_record_buffer_attr_pre(s, TRUE, FALSE, &maxlength, &fragsize);
1631     pa_memblockq_set_maxlength(s->memblockq, maxlength);
1632     fix_record_buffer_attr_post(s, &maxlength, &fragsize);
1633
1634     if (s->connection->version < 12)
1635       return;
1636
1637     t = pa_tagstruct_new(NULL, 0);
1638     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_MOVED);
1639     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1640     pa_tagstruct_putu32(t, s->index);
1641     pa_tagstruct_putu32(t, o->source->index);
1642     pa_tagstruct_puts(t, o->source->name);
1643     pa_tagstruct_put_boolean(t, pa_source_get_state(o->source) == PA_SOURCE_SUSPENDED);
1644
1645     if (s->connection->version >= 13) {
1646         pa_tagstruct_putu32(t, maxlength);
1647         pa_tagstruct_putu32(t, fragsize);
1648         pa_tagstruct_put_usec(t, s->source_latency);
1649     }
1650
1651     pa_pstream_send_tagstruct(s->connection->pstream, t);
1652 }
1653
1654 /*** pdispatch callbacks ***/
1655
1656 static void protocol_error(pa_native_connection *c) {
1657     pa_log("protocol error, kicking client");
1658     native_connection_unlink(c);
1659 }
1660
1661 #define CHECK_VALIDITY(pstream, expression, tag, error) do { \
1662 if (!(expression)) { \
1663     pa_pstream_send_error((pstream), (tag), (error)); \
1664     return; \
1665 } \
1666 } while(0);
1667
1668 static pa_tagstruct *reply_new(uint32_t tag) {
1669     pa_tagstruct *reply;
1670
1671     reply = pa_tagstruct_new(NULL, 0);
1672     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1673     pa_tagstruct_putu32(reply, tag);
1674     return reply;
1675 }
1676
1677 static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1678     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1679     playback_stream *s;
1680     uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid, missing;
1681     const char *name = NULL, *sink_name;
1682     pa_sample_spec ss;
1683     pa_channel_map map;
1684     pa_tagstruct *reply;
1685     pa_sink *sink = NULL;
1686     pa_cvolume volume;
1687     pa_bool_t
1688         corked = FALSE,
1689         no_remap = FALSE,
1690         no_remix = FALSE,
1691         fix_format = FALSE,
1692         fix_rate = FALSE,
1693         fix_channels = FALSE,
1694         no_move = FALSE,
1695         variable_rate = FALSE,
1696         muted = FALSE,
1697         adjust_latency = FALSE,
1698         early_requests = FALSE,
1699         dont_inhibit_auto_suspend = FALSE,
1700         muted_set = FALSE,
1701         fail_on_suspend = FALSE;
1702     pa_sink_input_flags_t flags = 0;
1703     pa_proplist *p;
1704     pa_bool_t volume_set = TRUE;
1705     int ret = PA_ERR_INVALID;
1706
1707     pa_native_connection_assert_ref(c);
1708     pa_assert(t);
1709
1710     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1711         pa_tagstruct_get(
1712                 t,
1713                 PA_TAG_SAMPLE_SPEC, &ss,
1714                 PA_TAG_CHANNEL_MAP, &map,
1715                 PA_TAG_U32, &sink_index,
1716                 PA_TAG_STRING, &sink_name,
1717                 PA_TAG_U32, &maxlength,
1718                 PA_TAG_BOOLEAN, &corked,
1719                 PA_TAG_U32, &tlength,
1720                 PA_TAG_U32, &prebuf,
1721                 PA_TAG_U32, &minreq,
1722                 PA_TAG_U32, &syncid,
1723                 PA_TAG_CVOLUME, &volume,
1724                 PA_TAG_INVALID) < 0) {
1725
1726         protocol_error(c);
1727         return;
1728     }
1729
1730     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1731     CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID);
1732     CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID);
1733     CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1734     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1735     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1736     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
1737     CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID);
1738
1739     p = pa_proplist_new();
1740
1741     if (name)
1742         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1743
1744     if (c->version >= 12)  {
1745         /* Since 0.9.8 the user can ask for a couple of additional flags */
1746
1747         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1748             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1749             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1750             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1751             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1752             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1753             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1754
1755             protocol_error(c);
1756             pa_proplist_free(p);
1757             return;
1758         }
1759     }
1760
1761     if (c->version >= 13) {
1762
1763         if (pa_tagstruct_get_boolean(t, &muted) < 0 ||
1764             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1765             pa_tagstruct_get_proplist(t, p) < 0) {
1766             protocol_error(c);
1767             pa_proplist_free(p);
1768             return;
1769         }
1770     }
1771
1772     if (c->version >= 14) {
1773
1774         if (pa_tagstruct_get_boolean(t, &volume_set) < 0 ||
1775             pa_tagstruct_get_boolean(t, &early_requests) < 0) {
1776             protocol_error(c);
1777             pa_proplist_free(p);
1778             return;
1779         }
1780     }
1781
1782     if (c->version >= 15) {
1783
1784         if (pa_tagstruct_get_boolean(t, &muted_set) < 0 ||
1785             pa_tagstruct_get_boolean(t, &dont_inhibit_auto_suspend) < 0 ||
1786             pa_tagstruct_get_boolean(t, &fail_on_suspend) < 0) {
1787             protocol_error(c);
1788             pa_proplist_free(p);
1789             return;
1790         }
1791     }
1792
1793     if (!pa_tagstruct_eof(t)) {
1794         protocol_error(c);
1795         pa_proplist_free(p);
1796         return;
1797     }
1798
1799     if (sink_index != PA_INVALID_INDEX) {
1800
1801         if (!(sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index))) {
1802             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1803             pa_proplist_free(p);
1804             return;
1805         }
1806
1807     } else if (sink_name) {
1808
1809         if (!(sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK))) {
1810             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1811             pa_proplist_free(p);
1812             return;
1813         }
1814     }
1815
1816     flags =
1817         (corked ?  PA_SINK_INPUT_START_CORKED : 0) |
1818         (no_remap ?  PA_SINK_INPUT_NO_REMAP : 0) |
1819         (no_remix ?  PA_SINK_INPUT_NO_REMIX : 0) |
1820         (fix_format ?  PA_SINK_INPUT_FIX_FORMAT : 0) |
1821         (fix_rate ?  PA_SINK_INPUT_FIX_RATE : 0) |
1822         (fix_channels ?  PA_SINK_INPUT_FIX_CHANNELS : 0) |
1823         (no_move ?  PA_SINK_INPUT_DONT_MOVE : 0) |
1824         (variable_rate ?  PA_SINK_INPUT_VARIABLE_RATE : 0) |
1825         (dont_inhibit_auto_suspend ? PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND : 0) |
1826         (fail_on_suspend ? PA_SINK_INPUT_FAIL_ON_SUSPEND : 0);
1827
1828     /* Only since protocol version 15 there's a seperate muted_set
1829      * flag. For older versions we synthesize it here */
1830     muted_set = muted_set || muted;
1831
1832     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, &ret);
1833     pa_proplist_free(p);
1834
1835     CHECK_VALIDITY(c->pstream, s, tag, ret);
1836
1837     reply = reply_new(tag);
1838     pa_tagstruct_putu32(reply, s->index);
1839     pa_assert(s->sink_input);
1840     pa_tagstruct_putu32(reply, s->sink_input->index);
1841     pa_tagstruct_putu32(reply, missing);
1842
1843 /*     pa_log("initial request is %u", missing); */
1844
1845     if (c->version >= 9) {
1846         /* Since 0.9.0 we support sending the buffer metrics back to the client */
1847
1848         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1849         pa_tagstruct_putu32(reply, (uint32_t) tlength);
1850         pa_tagstruct_putu32(reply, (uint32_t) prebuf);
1851         pa_tagstruct_putu32(reply, (uint32_t) minreq);
1852     }
1853
1854     if (c->version >= 12) {
1855         /* Since 0.9.8 we support sending the chosen sample
1856          * spec/channel map/device/suspend status back to the
1857          * client */
1858
1859         pa_tagstruct_put_sample_spec(reply, &ss);
1860         pa_tagstruct_put_channel_map(reply, &map);
1861
1862         pa_tagstruct_putu32(reply, s->sink_input->sink->index);
1863         pa_tagstruct_puts(reply, s->sink_input->sink->name);
1864
1865         pa_tagstruct_put_boolean(reply, pa_sink_get_state(s->sink_input->sink) == PA_SINK_SUSPENDED);
1866     }
1867
1868     if (c->version >= 13)
1869         pa_tagstruct_put_usec(reply, s->sink_latency);
1870
1871     pa_pstream_send_tagstruct(c->pstream, reply);
1872 }
1873
1874 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1875     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1876     uint32_t channel;
1877
1878     pa_native_connection_assert_ref(c);
1879     pa_assert(t);
1880
1881     if (pa_tagstruct_getu32(t, &channel) < 0 ||
1882         !pa_tagstruct_eof(t)) {
1883         protocol_error(c);
1884         return;
1885     }
1886
1887     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1888
1889     switch (command) {
1890
1891         case PA_COMMAND_DELETE_PLAYBACK_STREAM: {
1892             playback_stream *s;
1893             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) {
1894                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1895                 return;
1896             }
1897
1898             playback_stream_unlink(s);
1899             break;
1900         }
1901
1902         case PA_COMMAND_DELETE_RECORD_STREAM: {
1903             record_stream *s;
1904             if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
1905                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1906                 return;
1907             }
1908
1909             record_stream_unlink(s);
1910             break;
1911         }
1912
1913         case PA_COMMAND_DELETE_UPLOAD_STREAM: {
1914             upload_stream *s;
1915
1916             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !upload_stream_isinstance(s)) {
1917                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1918                 return;
1919             }
1920
1921             upload_stream_unlink(s);
1922             break;
1923         }
1924
1925         default:
1926             pa_assert_not_reached();
1927     }
1928
1929     pa_pstream_send_simple_ack(c->pstream, tag);
1930 }
1931
1932 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1933     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1934     record_stream *s;
1935     uint32_t maxlength, fragment_size;
1936     uint32_t source_index;
1937     const char *name = NULL, *source_name;
1938     pa_sample_spec ss;
1939     pa_channel_map map;
1940     pa_tagstruct *reply;
1941     pa_source *source = NULL;
1942     pa_bool_t
1943         corked = FALSE,
1944         no_remap = FALSE,
1945         no_remix = FALSE,
1946         fix_format = FALSE,
1947         fix_rate = FALSE,
1948         fix_channels = FALSE,
1949         no_move = FALSE,
1950         variable_rate = FALSE,
1951         adjust_latency = FALSE,
1952         peak_detect = FALSE,
1953         early_requests = FALSE,
1954         dont_inhibit_auto_suspend = FALSE,
1955         fail_on_suspend = FALSE;
1956     pa_source_output_flags_t flags = 0;
1957     pa_proplist *p;
1958     uint32_t direct_on_input_idx = PA_INVALID_INDEX;
1959     pa_sink_input *direct_on_input = NULL;
1960     int ret = PA_ERR_INVALID;
1961
1962     pa_native_connection_assert_ref(c);
1963     pa_assert(t);
1964
1965     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1966         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
1967         pa_tagstruct_get_channel_map(t, &map) < 0 ||
1968         pa_tagstruct_getu32(t, &source_index) < 0 ||
1969         pa_tagstruct_gets(t, &source_name) < 0 ||
1970         pa_tagstruct_getu32(t, &maxlength) < 0 ||
1971         pa_tagstruct_get_boolean(t, &corked) < 0 ||
1972         pa_tagstruct_getu32(t, &fragment_size) < 0) {
1973         protocol_error(c);
1974         return;
1975     }
1976
1977     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1978     CHECK_VALIDITY(c->pstream, !source_name || pa_namereg_is_valid_name(source_name), tag, PA_ERR_INVALID);
1979     CHECK_VALIDITY(c->pstream, source_index == PA_INVALID_INDEX || !source_name, tag, PA_ERR_INVALID);
1980     CHECK_VALIDITY(c->pstream, !source_name || source_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
1981     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1982     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1983     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
1984
1985     p = pa_proplist_new();
1986
1987     if (name)
1988         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1989
1990     if (c->version >= 12)  {
1991         /* Since 0.9.8 the user can ask for a couple of additional flags */
1992
1993         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1994             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1995             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1996             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1997             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1998             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1999             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
2000
2001             protocol_error(c);
2002             pa_proplist_free(p);
2003             return;
2004         }
2005     }
2006
2007     if (c->version >= 13) {
2008
2009         if (pa_tagstruct_get_boolean(t, &peak_detect) < 0 ||
2010             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
2011             pa_tagstruct_get_proplist(t, p) < 0 ||
2012             pa_tagstruct_getu32(t, &direct_on_input_idx) < 0) {
2013             protocol_error(c);
2014             pa_proplist_free(p);
2015             return;
2016         }
2017     }
2018
2019     if (c->version >= 14) {
2020
2021         if (pa_tagstruct_get_boolean(t, &early_requests) < 0) {
2022             protocol_error(c);
2023             pa_proplist_free(p);
2024             return;
2025         }
2026     }
2027
2028     if (c->version >= 15) {
2029
2030         if (pa_tagstruct_get_boolean(t, &dont_inhibit_auto_suspend) < 0 ||
2031             pa_tagstruct_get_boolean(t, &fail_on_suspend) < 0) {
2032             protocol_error(c);
2033             pa_proplist_free(p);
2034             return;
2035         }
2036     }
2037
2038     if (!pa_tagstruct_eof(t)) {
2039         protocol_error(c);
2040         pa_proplist_free(p);
2041         return;
2042     }
2043
2044     if (source_index != PA_INVALID_INDEX) {
2045
2046         if (!(source = pa_idxset_get_by_index(c->protocol->core->sources, source_index))) {
2047             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2048             pa_proplist_free(p);
2049             return;
2050         }
2051
2052     } else if (source_name) {
2053
2054         if (!(source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE))) {
2055             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2056             pa_proplist_free(p);
2057             return;
2058         }
2059     }
2060
2061     if (direct_on_input_idx != PA_INVALID_INDEX) {
2062
2063         if (!(direct_on_input = pa_idxset_get_by_index(c->protocol->core->sink_inputs, direct_on_input_idx))) {
2064             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2065             pa_proplist_free(p);
2066             return;
2067         }
2068     }
2069
2070     flags =
2071         (corked ?  PA_SOURCE_OUTPUT_START_CORKED : 0) |
2072         (no_remap ?  PA_SOURCE_OUTPUT_NO_REMAP : 0) |
2073         (no_remix ?  PA_SOURCE_OUTPUT_NO_REMIX : 0) |
2074         (fix_format ?  PA_SOURCE_OUTPUT_FIX_FORMAT : 0) |
2075         (fix_rate ?  PA_SOURCE_OUTPUT_FIX_RATE : 0) |
2076         (fix_channels ?  PA_SOURCE_OUTPUT_FIX_CHANNELS : 0) |
2077         (no_move ?  PA_SOURCE_OUTPUT_DONT_MOVE : 0) |
2078         (variable_rate ?  PA_SOURCE_OUTPUT_VARIABLE_RATE : 0) |
2079         (dont_inhibit_auto_suspend ? PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND : 0) |
2080         (fail_on_suspend ? PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND : 0);
2081
2082     s = record_stream_new(c, source, &ss, &map, peak_detect, &maxlength, &fragment_size, flags, p, adjust_latency, direct_on_input, early_requests, &ret);
2083     pa_proplist_free(p);
2084
2085     CHECK_VALIDITY(c->pstream, s, tag, ret);
2086
2087     reply = reply_new(tag);
2088     pa_tagstruct_putu32(reply, s->index);
2089     pa_assert(s->source_output);
2090     pa_tagstruct_putu32(reply, s->source_output->index);
2091
2092     if (c->version >= 9) {
2093         /* Since 0.9 we support sending the buffer metrics back to the client */
2094
2095         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
2096         pa_tagstruct_putu32(reply, (uint32_t) fragment_size);
2097     }
2098
2099     if (c->version >= 12) {
2100         /* Since 0.9.8 we support sending the chosen sample
2101          * spec/channel map/device/suspend status back to the
2102          * client */
2103
2104         pa_tagstruct_put_sample_spec(reply, &ss);
2105         pa_tagstruct_put_channel_map(reply, &map);
2106
2107         pa_tagstruct_putu32(reply, s->source_output->source->index);
2108         pa_tagstruct_puts(reply, s->source_output->source->name);
2109
2110         pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_SUSPENDED);
2111     }
2112
2113     if (c->version >= 13)
2114         pa_tagstruct_put_usec(reply, s->source_latency);
2115
2116     pa_pstream_send_tagstruct(c->pstream, reply);
2117 }
2118
2119 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2120     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2121     int ret;
2122
2123     pa_native_connection_assert_ref(c);
2124     pa_assert(t);
2125
2126     if (!pa_tagstruct_eof(t)) {
2127         protocol_error(c);
2128         return;
2129     }
2130
2131     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2132     ret = pa_core_exit(c->protocol->core, FALSE, 0);
2133     CHECK_VALIDITY(c->pstream, ret >= 0, tag, PA_ERR_ACCESS);
2134
2135     pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
2136 }
2137
2138 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2139     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2140     const void*cookie;
2141     pa_tagstruct *reply;
2142     pa_bool_t shm_on_remote = FALSE, do_shm;
2143
2144     pa_native_connection_assert_ref(c);
2145     pa_assert(t);
2146
2147     if (pa_tagstruct_getu32(t, &c->version) < 0 ||
2148         pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
2149         !pa_tagstruct_eof(t)) {
2150         protocol_error(c);
2151         return;
2152     }
2153
2154     /* Minimum supported version */
2155     if (c->version < 8) {
2156         pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION);
2157         return;
2158     }
2159
2160     /* Starting with protocol version 13 the MSB of the version tag
2161        reflects if shm is available for this pa_native_connection or
2162        not. */
2163     if (c->version >= 13) {
2164         shm_on_remote = !!(c->version & 0x80000000U);
2165         c->version &= 0x7FFFFFFFU;
2166     }
2167
2168     pa_log_debug("Protocol version: remote %u, local %u", c->version, PA_PROTOCOL_VERSION);
2169
2170     pa_proplist_setf(c->client->proplist, "native-protocol.version", "%u", c->version);
2171
2172     if (!c->authorized) {
2173         pa_bool_t success = FALSE;
2174
2175 #ifdef HAVE_CREDS
2176         const pa_creds *creds;
2177
2178         if ((creds = pa_pdispatch_creds(pd))) {
2179             if (creds->uid == getuid())
2180                 success = TRUE;
2181             else if (c->options->auth_group) {
2182                 int r;
2183                 gid_t gid;
2184
2185                 if ((gid = pa_get_gid_of_group(c->options->auth_group)) == (gid_t) -1)
2186                     pa_log_warn("Failed to get GID of group '%s'", c->options->auth_group);
2187                 else if (gid == creds->gid)
2188                     success = TRUE;
2189
2190                 if (!success) {
2191                     if ((r = pa_uid_in_group(creds->uid, c->options->auth_group)) < 0)
2192                         pa_log_warn("Failed to check group membership.");
2193                     else if (r > 0)
2194                         success = TRUE;
2195                 }
2196             }
2197
2198             pa_log_info("Got credentials: uid=%lu gid=%lu success=%i",
2199                         (unsigned long) creds->uid,
2200                         (unsigned long) creds->gid,
2201                         (int) success);
2202         }
2203 #endif
2204
2205         if (!success && c->options->auth_cookie) {
2206             const uint8_t *ac;
2207
2208             if ((ac = pa_auth_cookie_read(c->options->auth_cookie, PA_NATIVE_COOKIE_LENGTH)))
2209                 if (memcmp(ac, cookie, PA_NATIVE_COOKIE_LENGTH) == 0)
2210                     success = TRUE;
2211         }
2212
2213         if (!success) {
2214             pa_log_warn("Denied access to client with invalid authorization data.");
2215             pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS);
2216             return;
2217         }
2218
2219         c->authorized = TRUE;
2220         if (c->auth_timeout_event) {
2221             c->protocol->core->mainloop->time_free(c->auth_timeout_event);
2222             c->auth_timeout_event = NULL;
2223         }
2224     }
2225
2226     /* Enable shared memory support if possible */
2227     do_shm =
2228         pa_mempool_is_shared(c->protocol->core->mempool) &&
2229         c->is_local;
2230
2231     pa_log_debug("SHM possible: %s", pa_yes_no(do_shm));
2232
2233     if (do_shm)
2234         if (c->version < 10 || (c->version >= 13 && !shm_on_remote))
2235             do_shm = FALSE;
2236
2237 #ifdef HAVE_CREDS
2238     if (do_shm) {
2239         /* Only enable SHM if both sides are owned by the same
2240          * user. This is a security measure because otherwise data
2241          * private to the user might leak. */
2242
2243         const pa_creds *creds;
2244         if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid)
2245             do_shm = FALSE;
2246     }
2247 #endif
2248
2249     pa_log_debug("Negotiated SHM: %s", pa_yes_no(do_shm));
2250     pa_pstream_enable_shm(c->pstream, do_shm);
2251
2252     reply = reply_new(tag);
2253     pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION | (do_shm ? 0x80000000 : 0));
2254
2255 #ifdef HAVE_CREDS
2256 {
2257     /* SHM support is only enabled after both sides made sure they are the same user. */
2258
2259     pa_creds ucred;
2260
2261     ucred.uid = getuid();
2262     ucred.gid = getgid();
2263
2264     pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred);
2265 }
2266 #else
2267     pa_pstream_send_tagstruct(c->pstream, reply);
2268 #endif
2269 }
2270
2271 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2272     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2273     const char *name = NULL;
2274     pa_proplist *p;
2275     pa_tagstruct *reply;
2276
2277     pa_native_connection_assert_ref(c);
2278     pa_assert(t);
2279
2280     p = pa_proplist_new();
2281
2282     if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) ||
2283         (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2284         !pa_tagstruct_eof(t)) {
2285
2286         protocol_error(c);
2287         pa_proplist_free(p);
2288         return;
2289     }
2290
2291     if (name)
2292         if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) {
2293             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
2294             pa_proplist_free(p);
2295             return;
2296         }
2297
2298     pa_proplist_update(c->client->proplist, PA_UPDATE_REPLACE, p);
2299     pa_proplist_free(p);
2300
2301     pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
2302
2303     reply = reply_new(tag);
2304
2305     if (c->version >= 13)
2306         pa_tagstruct_putu32(reply, c->client->index);
2307
2308     pa_pstream_send_tagstruct(c->pstream, reply);
2309 }
2310
2311 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2312     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2313     const char *name;
2314     uint32_t idx = PA_IDXSET_INVALID;
2315
2316     pa_native_connection_assert_ref(c);
2317     pa_assert(t);
2318
2319     if (pa_tagstruct_gets(t, &name) < 0 ||
2320         !pa_tagstruct_eof(t)) {
2321         protocol_error(c);
2322         return;
2323     }
2324
2325     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2326     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2327
2328     if (command == PA_COMMAND_LOOKUP_SINK) {
2329         pa_sink *sink;
2330         if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK)))
2331             idx = sink->index;
2332     } else {
2333         pa_source *source;
2334         pa_assert(command == PA_COMMAND_LOOKUP_SOURCE);
2335         if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE)))
2336             idx = source->index;
2337     }
2338
2339     if (idx == PA_IDXSET_INVALID)
2340         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2341     else {
2342         pa_tagstruct *reply;
2343         reply = reply_new(tag);
2344         pa_tagstruct_putu32(reply, idx);
2345         pa_pstream_send_tagstruct(c->pstream, reply);
2346     }
2347 }
2348
2349 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2350     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2351     uint32_t idx;
2352     playback_stream *s;
2353
2354     pa_native_connection_assert_ref(c);
2355     pa_assert(t);
2356
2357     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2358         !pa_tagstruct_eof(t)) {
2359         protocol_error(c);
2360         return;
2361     }
2362
2363     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2364     s = pa_idxset_get_by_index(c->output_streams, idx);
2365     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2366     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2367
2368     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);
2369 }
2370
2371 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2372     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2373     pa_tagstruct *reply;
2374     const pa_mempool_stat *stat;
2375
2376     pa_native_connection_assert_ref(c);
2377     pa_assert(t);
2378
2379     if (!pa_tagstruct_eof(t)) {
2380         protocol_error(c);
2381         return;
2382     }
2383
2384     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2385
2386     stat = pa_mempool_get_stat(c->protocol->core->mempool);
2387
2388     reply = reply_new(tag);
2389     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated));
2390     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size));
2391     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated));
2392     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size));
2393     pa_tagstruct_putu32(reply, (uint32_t) pa_scache_total_size(c->protocol->core));
2394     pa_pstream_send_tagstruct(c->pstream, reply);
2395 }
2396
2397 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2398     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2399     pa_tagstruct *reply;
2400     playback_stream *s;
2401     struct timeval tv, now;
2402     uint32_t idx;
2403     pa_usec_t latency;
2404
2405     pa_native_connection_assert_ref(c);
2406     pa_assert(t);
2407
2408     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2409         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2410         !pa_tagstruct_eof(t)) {
2411         protocol_error(c);
2412         return;
2413     }
2414
2415     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2416     s = pa_idxset_get_by_index(c->output_streams, idx);
2417     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2418     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2419     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)
2420
2421     reply = reply_new(tag);
2422
2423     latency = pa_sink_get_latency(s->sink_input->sink);
2424     latency += pa_bytes_to_usec(s->render_memblockq_length, &s->sink_input->sample_spec);
2425
2426     pa_tagstruct_put_usec(reply, latency);
2427
2428     pa_tagstruct_put_usec(reply, 0);
2429     pa_tagstruct_put_boolean(reply, s->sink_input->thread_info.playing_for > 0);
2430     pa_tagstruct_put_timeval(reply, &tv);
2431     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2432     pa_tagstruct_puts64(reply, s->write_index);
2433     pa_tagstruct_puts64(reply, s->read_index);
2434
2435     if (c->version >= 13) {
2436         pa_tagstruct_putu64(reply, s->sink_input->thread_info.underrun_for);
2437         pa_tagstruct_putu64(reply, s->sink_input->thread_info.playing_for);
2438     }
2439
2440     pa_pstream_send_tagstruct(c->pstream, reply);
2441 }
2442
2443 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2444     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2445     pa_tagstruct *reply;
2446     record_stream *s;
2447     struct timeval tv, now;
2448     uint32_t idx;
2449
2450     pa_native_connection_assert_ref(c);
2451     pa_assert(t);
2452
2453     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2454         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2455         !pa_tagstruct_eof(t)) {
2456         protocol_error(c);
2457         return;
2458     }
2459
2460     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2461     s = pa_idxset_get_by_index(c->record_streams, idx);
2462     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2463
2464     reply = reply_new(tag);
2465     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
2466     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
2467     pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_RUNNING);
2468     pa_tagstruct_put_timeval(reply, &tv);
2469     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2470     pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
2471     pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
2472     pa_pstream_send_tagstruct(c->pstream, reply);
2473 }
2474
2475 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2476     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2477     upload_stream *s;
2478     uint32_t length;
2479     const char *name = NULL;
2480     pa_sample_spec ss;
2481     pa_channel_map map;
2482     pa_tagstruct *reply;
2483     pa_proplist *p;
2484
2485     pa_native_connection_assert_ref(c);
2486     pa_assert(t);
2487
2488     if (pa_tagstruct_gets(t, &name) < 0 ||
2489         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
2490         pa_tagstruct_get_channel_map(t, &map) < 0 ||
2491         pa_tagstruct_getu32(t, &length) < 0) {
2492         protocol_error(c);
2493         return;
2494     }
2495
2496     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2497     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
2498     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
2499     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
2500     CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID);
2501     CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE);
2502
2503     p = pa_proplist_new();
2504
2505     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2506         !pa_tagstruct_eof(t)) {
2507
2508         protocol_error(c);
2509         pa_proplist_free(p);
2510         return;
2511     }
2512
2513     if (c->version < 13)
2514         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2515     else if (!name)
2516         if (!(name = pa_proplist_gets(p, PA_PROP_EVENT_ID)))
2517             name = pa_proplist_gets(p, PA_PROP_MEDIA_NAME);
2518
2519     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2520
2521     s = upload_stream_new(c, &ss, &map, name, length, p);
2522     pa_proplist_free(p);
2523
2524     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
2525
2526     reply = reply_new(tag);
2527     pa_tagstruct_putu32(reply, s->index);
2528     pa_tagstruct_putu32(reply, length);
2529     pa_pstream_send_tagstruct(c->pstream, reply);
2530 }
2531
2532 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2533     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2534     uint32_t channel;
2535     upload_stream *s;
2536     uint32_t idx;
2537
2538     pa_native_connection_assert_ref(c);
2539     pa_assert(t);
2540
2541     if (pa_tagstruct_getu32(t, &channel) < 0 ||
2542         !pa_tagstruct_eof(t)) {
2543         protocol_error(c);
2544         return;
2545     }
2546
2547     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2548
2549     s = pa_idxset_get_by_index(c->output_streams, channel);
2550     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2551     CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2552
2553     if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, s->proplist, &idx) < 0)
2554         pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL);
2555     else
2556         pa_pstream_send_simple_ack(c->pstream, tag);
2557
2558     upload_stream_unlink(s);
2559 }
2560
2561 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2562     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2563     uint32_t sink_index;
2564     pa_volume_t volume;
2565     pa_sink *sink;
2566     const char *name, *sink_name;
2567     uint32_t idx;
2568     pa_proplist *p;
2569     pa_tagstruct *reply;
2570
2571     pa_native_connection_assert_ref(c);
2572     pa_assert(t);
2573
2574     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2575
2576     if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
2577         pa_tagstruct_gets(t, &sink_name) < 0 ||
2578         pa_tagstruct_getu32(t, &volume) < 0 ||
2579         pa_tagstruct_gets(t, &name) < 0) {
2580         protocol_error(c);
2581         return;
2582     }
2583
2584     CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID);
2585     CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID);
2586     CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2587     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2588
2589     if (sink_index != PA_INVALID_INDEX)
2590         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
2591     else
2592         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK);
2593
2594     CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
2595
2596     p = pa_proplist_new();
2597
2598     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2599         !pa_tagstruct_eof(t)) {
2600         protocol_error(c);
2601         pa_proplist_free(p);
2602         return;
2603     }
2604
2605     pa_proplist_update(p, PA_UPDATE_MERGE, c->client->proplist);
2606
2607     if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) {
2608         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2609         pa_proplist_free(p);
2610         return;
2611     }
2612
2613     pa_proplist_free(p);
2614
2615     reply = reply_new(tag);
2616
2617     if (c->version >= 13)
2618         pa_tagstruct_putu32(reply, idx);
2619
2620     pa_pstream_send_tagstruct(c->pstream, reply);
2621 }
2622
2623 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2624     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2625     const char *name;
2626
2627     pa_native_connection_assert_ref(c);
2628     pa_assert(t);
2629
2630     if (pa_tagstruct_gets(t, &name) < 0 ||
2631         !pa_tagstruct_eof(t)) {
2632         protocol_error(c);
2633         return;
2634     }
2635
2636     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2637     CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2638
2639     if (pa_scache_remove_item(c->protocol->core, name) < 0) {
2640         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2641         return;
2642     }
2643
2644     pa_pstream_send_simple_ack(c->pstream, tag);
2645 }
2646
2647 static void fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) {
2648     pa_assert(c);
2649     pa_assert(fixed);
2650     pa_assert(original);
2651
2652     *fixed = *original;
2653
2654     if (c->version < 12) {
2655         /* Before protocol version 12 we didn't support S32 samples,
2656          * so we need to lie about this to the client */
2657
2658         if (fixed->format == PA_SAMPLE_S32LE)
2659             fixed->format = PA_SAMPLE_FLOAT32LE;
2660         if (fixed->format == PA_SAMPLE_S32BE)
2661             fixed->format = PA_SAMPLE_FLOAT32BE;
2662     }
2663
2664     if (c->version < 15) {
2665         if (fixed->format == PA_SAMPLE_S24LE || fixed->format == PA_SAMPLE_S24_32LE)
2666             fixed->format = PA_SAMPLE_FLOAT32LE;
2667         if (fixed->format == PA_SAMPLE_S24BE || fixed->format == PA_SAMPLE_S24_32BE)
2668             fixed->format = PA_SAMPLE_FLOAT32BE;
2669     }
2670 }
2671
2672 static void sink_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink *sink) {
2673     pa_sample_spec fixed_ss;
2674
2675     pa_assert(t);
2676     pa_sink_assert_ref(sink);
2677
2678     fixup_sample_spec(c, &fixed_ss, &sink->sample_spec);
2679
2680     pa_tagstruct_put(
2681         t,
2682         PA_TAG_U32, sink->index,
2683         PA_TAG_STRING, sink->name,
2684         PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2685         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2686         PA_TAG_CHANNEL_MAP, &sink->channel_map,
2687         PA_TAG_U32, sink->module ? sink->module->index : PA_INVALID_INDEX,
2688         PA_TAG_CVOLUME, pa_sink_get_volume(sink, FALSE),
2689         PA_TAG_BOOLEAN, pa_sink_get_mute(sink, FALSE),
2690         PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX,
2691         PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL,
2692         PA_TAG_USEC, pa_sink_get_latency(sink),
2693         PA_TAG_STRING, sink->driver,
2694         PA_TAG_U32, sink->flags,
2695         PA_TAG_INVALID);
2696
2697     if (c->version >= 13) {
2698         pa_tagstruct_put_proplist(t, sink->proplist);
2699         pa_tagstruct_put_usec(t, pa_sink_get_requested_latency(sink));
2700     }
2701
2702     if (c->version >= 15) {
2703         pa_tagstruct_put_volume(t, sink->base_volume);
2704         if (PA_UNLIKELY(pa_sink_get_state(sink) == PA_SINK_INVALID_STATE))
2705             pa_log_error("Internal sink state is invalid.");
2706         pa_tagstruct_putu32(t, pa_sink_get_state(sink));
2707         pa_tagstruct_putu32(t, sink->n_volume_steps);
2708     }
2709 }
2710
2711 static void source_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source *source) {
2712     pa_sample_spec fixed_ss;
2713
2714     pa_assert(t);
2715     pa_source_assert_ref(source);
2716
2717     fixup_sample_spec(c, &fixed_ss, &source->sample_spec);
2718
2719     pa_tagstruct_put(
2720         t,
2721         PA_TAG_U32, source->index,
2722         PA_TAG_STRING, source->name,
2723         PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2724         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2725         PA_TAG_CHANNEL_MAP, &source->channel_map,
2726         PA_TAG_U32, source->module ? source->module->index : PA_INVALID_INDEX,
2727         PA_TAG_CVOLUME, pa_source_get_volume(source, FALSE),
2728         PA_TAG_BOOLEAN, pa_source_get_mute(source, FALSE),
2729         PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX,
2730         PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
2731         PA_TAG_USEC, pa_source_get_latency(source),
2732         PA_TAG_STRING, source->driver,
2733         PA_TAG_U32, source->flags,
2734         PA_TAG_INVALID);
2735
2736     if (c->version >= 13) {
2737         pa_tagstruct_put_proplist(t, source->proplist);
2738         pa_tagstruct_put_usec(t, pa_source_get_requested_latency(source));
2739     }
2740
2741     if (c->version >= 15) {
2742         pa_tagstruct_put_volume(t, source->base_volume);
2743         if (PA_UNLIKELY(pa_source_get_state(source) == PA_SOURCE_INVALID_STATE))
2744             pa_log_error("Internal source state is invalid.");
2745         pa_tagstruct_putu32(t, pa_source_get_state(source));
2746         pa_tagstruct_putu32(t, source->n_volume_steps);
2747     }
2748 }
2749
2750 static void client_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_client *client) {
2751     pa_assert(t);
2752     pa_assert(client);
2753
2754     pa_tagstruct_putu32(t, client->index);
2755     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME)));
2756     pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX);
2757     pa_tagstruct_puts(t, client->driver);
2758
2759     if (c->version >= 13)
2760         pa_tagstruct_put_proplist(t, client->proplist);
2761 }
2762
2763 static void card_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_card *card) {
2764     void *state = NULL;
2765     pa_card_profile *p;
2766
2767     pa_assert(t);
2768     pa_assert(card);
2769
2770     pa_tagstruct_putu32(t, card->index);
2771     pa_tagstruct_puts(t, card->name);
2772     pa_tagstruct_putu32(t, card->module ? card->module->index : PA_INVALID_INDEX);
2773     pa_tagstruct_puts(t, card->driver);
2774
2775     pa_tagstruct_putu32(t, card->profiles ? pa_hashmap_size(card->profiles) : 0);
2776
2777     if (card->profiles) {
2778         while ((p = pa_hashmap_iterate(card->profiles, &state, NULL))) {
2779             pa_tagstruct_puts(t, p->name);
2780             pa_tagstruct_puts(t, p->description);
2781         }
2782     }
2783
2784     pa_tagstruct_puts(t, card->active_profile ? card->active_profile->name : NULL);
2785     pa_tagstruct_put_proplist(t, card->proplist);
2786 }
2787
2788 static void module_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_module *module) {
2789     pa_assert(t);
2790     pa_assert(module);
2791
2792     pa_tagstruct_putu32(t, module->index);
2793     pa_tagstruct_puts(t, module->name);
2794     pa_tagstruct_puts(t, module->argument);
2795     pa_tagstruct_putu32(t, (uint32_t) pa_module_get_n_used(module));
2796
2797     if (c->version < 15)
2798         pa_tagstruct_put_boolean(t, FALSE); /* autoload is obsolete */
2799
2800     if (c->version >= 15)
2801         pa_tagstruct_put_proplist(t, module->proplist);
2802 }
2803
2804 static void sink_input_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink_input *s) {
2805     pa_sample_spec fixed_ss;
2806     pa_usec_t sink_latency;
2807
2808     pa_assert(t);
2809     pa_sink_input_assert_ref(s);
2810
2811     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2812
2813     pa_tagstruct_putu32(t, s->index);
2814     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2815     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2816     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2817     pa_tagstruct_putu32(t, s->sink->index);
2818     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2819     pa_tagstruct_put_channel_map(t, &s->channel_map);
2820     pa_tagstruct_put_cvolume(t, pa_sink_input_get_volume(s));
2821     pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s, &sink_latency));
2822     pa_tagstruct_put_usec(t, sink_latency);
2823     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s)));
2824     pa_tagstruct_puts(t, s->driver);
2825     if (c->version >= 11)
2826         pa_tagstruct_put_boolean(t, pa_sink_input_get_mute(s));
2827     if (c->version >= 13)
2828         pa_tagstruct_put_proplist(t, s->proplist);
2829 }
2830
2831 static void source_output_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source_output *s) {
2832     pa_sample_spec fixed_ss;
2833     pa_usec_t source_latency;
2834
2835     pa_assert(t);
2836     pa_source_output_assert_ref(s);
2837
2838     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2839
2840     pa_tagstruct_putu32(t, s->index);
2841     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2842     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2843     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2844     pa_tagstruct_putu32(t, s->source->index);
2845     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2846     pa_tagstruct_put_channel_map(t, &s->channel_map);
2847     pa_tagstruct_put_usec(t, pa_source_output_get_latency(s, &source_latency));
2848     pa_tagstruct_put_usec(t, source_latency);
2849     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s)));
2850     pa_tagstruct_puts(t, s->driver);
2851
2852     if (c->version >= 13)
2853         pa_tagstruct_put_proplist(t, s->proplist);
2854 }
2855
2856 static void scache_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_scache_entry *e) {
2857     pa_sample_spec fixed_ss;
2858     pa_cvolume v;
2859
2860     pa_assert(t);
2861     pa_assert(e);
2862
2863     if (e->memchunk.memblock)
2864         fixup_sample_spec(c, &fixed_ss, &e->sample_spec);
2865     else
2866         memset(&fixed_ss, 0, sizeof(fixed_ss));
2867
2868     pa_tagstruct_putu32(t, e->index);
2869     pa_tagstruct_puts(t, e->name);
2870
2871     if (e->volume_is_set)
2872         v = e->volume;
2873     else
2874         pa_cvolume_init(&v);
2875
2876     pa_tagstruct_put_cvolume(t, &v);
2877     pa_tagstruct_put_usec(t, e->memchunk.memblock ? pa_bytes_to_usec(e->memchunk.length, &e->sample_spec) : 0);
2878     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2879     pa_tagstruct_put_channel_map(t, &e->channel_map);
2880     pa_tagstruct_putu32(t, (uint32_t) e->memchunk.length);
2881     pa_tagstruct_put_boolean(t, e->lazy);
2882     pa_tagstruct_puts(t, e->filename);
2883
2884     if (c->version >= 13)
2885         pa_tagstruct_put_proplist(t, e->proplist);
2886 }
2887
2888 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2889     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2890     uint32_t idx;
2891     pa_sink *sink = NULL;
2892     pa_source *source = NULL;
2893     pa_client *client = NULL;
2894     pa_card *card = NULL;
2895     pa_module *module = NULL;
2896     pa_sink_input *si = NULL;
2897     pa_source_output *so = NULL;
2898     pa_scache_entry *sce = NULL;
2899     const char *name = NULL;
2900     pa_tagstruct *reply;
2901
2902     pa_native_connection_assert_ref(c);
2903     pa_assert(t);
2904
2905     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2906         (command != PA_COMMAND_GET_CLIENT_INFO &&
2907          command != PA_COMMAND_GET_CARD_INFO &&
2908          command != PA_COMMAND_GET_MODULE_INFO &&
2909          command != PA_COMMAND_GET_SINK_INPUT_INFO &&
2910          command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
2911          pa_tagstruct_gets(t, &name) < 0) ||
2912         !pa_tagstruct_eof(t)) {
2913         protocol_error(c);
2914         return;
2915     }
2916
2917     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2918     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
2919     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
2920     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
2921     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2922
2923     if (command == PA_COMMAND_GET_SINK_INFO) {
2924         if (idx != PA_INVALID_INDEX)
2925             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2926         else
2927             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
2928     } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
2929         if (idx != PA_INVALID_INDEX)
2930             source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2931         else
2932             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
2933     } else if (command == PA_COMMAND_GET_CARD_INFO) {
2934         if (idx != PA_INVALID_INDEX)
2935             card = pa_idxset_get_by_index(c->protocol->core->cards, idx);
2936         else
2937             card = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_CARD);
2938     } else if (command == PA_COMMAND_GET_CLIENT_INFO)
2939         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
2940     else if (command == PA_COMMAND_GET_MODULE_INFO)
2941         module = pa_idxset_get_by_index(c->protocol->core->modules, idx);
2942     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
2943         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2944     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
2945         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
2946     else {
2947         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO);
2948         if (idx != PA_INVALID_INDEX)
2949             sce = pa_idxset_get_by_index(c->protocol->core->scache, idx);
2950         else
2951             sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE);
2952     }
2953
2954     if (!sink && !source && !client && !card && !module && !si && !so && !sce) {
2955         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2956         return;
2957     }
2958
2959     reply = reply_new(tag);
2960     if (sink)
2961         sink_fill_tagstruct(c, reply, sink);
2962     else if (source)
2963         source_fill_tagstruct(c, reply, source);
2964     else if (client)
2965         client_fill_tagstruct(c, reply, client);
2966     else if (client)
2967         card_fill_tagstruct(c, reply, card);
2968     else if (module)
2969         module_fill_tagstruct(c, reply, module);
2970     else if (si)
2971         sink_input_fill_tagstruct(c, reply, si);
2972     else if (so)
2973         source_output_fill_tagstruct(c, reply, so);
2974     else
2975         scache_fill_tagstruct(c, reply, sce);
2976     pa_pstream_send_tagstruct(c->pstream, reply);
2977 }
2978
2979 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2980     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2981     pa_idxset *i;
2982     uint32_t idx;
2983     void *p;
2984     pa_tagstruct *reply;
2985
2986     pa_native_connection_assert_ref(c);
2987     pa_assert(t);
2988
2989     if (!pa_tagstruct_eof(t)) {
2990         protocol_error(c);
2991         return;
2992     }
2993
2994     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2995
2996     reply = reply_new(tag);
2997
2998     if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2999         i = c->protocol->core->sinks;
3000     else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
3001         i = c->protocol->core->sources;
3002     else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
3003         i = c->protocol->core->clients;
3004     else if (command == PA_COMMAND_GET_CARD_INFO_LIST)
3005         i = c->protocol->core->cards;
3006     else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
3007         i = c->protocol->core->modules;
3008     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
3009         i = c->protocol->core->sink_inputs;
3010     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
3011         i = c->protocol->core->source_outputs;
3012     else {
3013         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
3014         i = c->protocol->core->scache;
3015     }
3016
3017     if (i) {
3018         for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) {
3019             if (command == PA_COMMAND_GET_SINK_INFO_LIST)
3020                 sink_fill_tagstruct(c, reply, p);
3021             else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
3022                 source_fill_tagstruct(c, reply, p);
3023             else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
3024                 client_fill_tagstruct(c, reply, p);
3025             else if (command == PA_COMMAND_GET_CARD_INFO_LIST)
3026                 card_fill_tagstruct(c, reply, p);
3027             else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
3028                 module_fill_tagstruct(c, reply, p);
3029             else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
3030                 sink_input_fill_tagstruct(c, reply, p);
3031             else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
3032                 source_output_fill_tagstruct(c, reply, p);
3033             else {
3034                 pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
3035                 scache_fill_tagstruct(c, reply, p);
3036             }
3037         }
3038     }
3039
3040     pa_pstream_send_tagstruct(c->pstream, reply);
3041 }
3042
3043 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3044     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3045     pa_tagstruct *reply;
3046     char txt[256];
3047     pa_sink *def_sink;
3048     pa_source *def_source;
3049     pa_sample_spec fixed_ss;
3050
3051     pa_native_connection_assert_ref(c);
3052     pa_assert(t);
3053
3054     if (!pa_tagstruct_eof(t)) {
3055         protocol_error(c);
3056         return;
3057     }
3058
3059     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3060
3061     reply = reply_new(tag);
3062     pa_tagstruct_puts(reply, PACKAGE_NAME);
3063     pa_tagstruct_puts(reply, PACKAGE_VERSION);
3064     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
3065     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
3066
3067     fixup_sample_spec(c, &fixed_ss, &c->protocol->core->default_sample_spec);
3068     pa_tagstruct_put_sample_spec(reply, &fixed_ss);
3069
3070     def_sink = pa_namereg_get_default_sink(c->protocol->core);
3071     pa_tagstruct_puts(reply, def_sink ? def_sink->name : NULL);
3072     def_source = pa_namereg_get_default_source(c->protocol->core);
3073     pa_tagstruct_puts(reply, def_source ? def_source->name : NULL);
3074
3075     pa_tagstruct_putu32(reply, c->protocol->core->cookie);
3076
3077     pa_pstream_send_tagstruct(c->pstream, reply);
3078 }
3079
3080 static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) {
3081     pa_tagstruct *t;
3082     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3083
3084     pa_native_connection_assert_ref(c);
3085
3086     t = pa_tagstruct_new(NULL, 0);
3087     pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
3088     pa_tagstruct_putu32(t, (uint32_t) -1);
3089     pa_tagstruct_putu32(t, e);
3090     pa_tagstruct_putu32(t, idx);
3091     pa_pstream_send_tagstruct(c->pstream, t);
3092 }
3093
3094 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3095     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3096     pa_subscription_mask_t m;
3097
3098     pa_native_connection_assert_ref(c);
3099     pa_assert(t);
3100
3101     if (pa_tagstruct_getu32(t, &m) < 0 ||
3102         !pa_tagstruct_eof(t)) {
3103         protocol_error(c);
3104         return;
3105     }
3106
3107     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3108     CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID);
3109
3110     if (c->subscription)
3111         pa_subscription_free(c->subscription);
3112
3113     if (m != 0) {
3114         c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
3115         pa_assert(c->subscription);
3116     } else
3117         c->subscription = NULL;
3118
3119     pa_pstream_send_simple_ack(c->pstream, tag);
3120 }
3121
3122 static void command_set_volume(
3123         pa_pdispatch *pd,
3124         uint32_t command,
3125         uint32_t tag,
3126         pa_tagstruct *t,
3127         void *userdata) {
3128
3129     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3130     uint32_t idx;
3131     pa_cvolume volume;
3132     pa_sink *sink = NULL;
3133     pa_source *source = NULL;
3134     pa_sink_input *si = NULL;
3135     const char *name = NULL;
3136
3137     pa_native_connection_assert_ref(c);
3138     pa_assert(t);
3139
3140     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3141         (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
3142         (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
3143         pa_tagstruct_get_cvolume(t, &volume) ||
3144         !pa_tagstruct_eof(t)) {
3145         protocol_error(c);
3146         return;
3147     }
3148
3149     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3150     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
3151     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3152     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3153     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3154     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
3155
3156     switch (command) {
3157
3158         case PA_COMMAND_SET_SINK_VOLUME:
3159             if (idx != PA_INVALID_INDEX)
3160                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3161             else
3162                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
3163             break;
3164
3165         case PA_COMMAND_SET_SOURCE_VOLUME:
3166             if (idx != PA_INVALID_INDEX)
3167                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3168             else
3169                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
3170             break;
3171
3172         case PA_COMMAND_SET_SINK_INPUT_VOLUME:
3173             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3174             break;
3175
3176         default:
3177             pa_assert_not_reached();
3178     }
3179
3180     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
3181
3182     if (sink)
3183         pa_sink_set_volume(sink, &volume, TRUE, TRUE);
3184     else if (source)
3185         pa_source_set_volume(source, &volume);
3186     else if (si)
3187         pa_sink_input_set_volume(si, &volume, TRUE);
3188
3189     pa_pstream_send_simple_ack(c->pstream, tag);
3190 }
3191
3192 static void command_set_mute(
3193         pa_pdispatch *pd,
3194         uint32_t command,
3195         uint32_t tag,
3196         pa_tagstruct *t,
3197         void *userdata) {
3198
3199     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3200     uint32_t idx;
3201     pa_bool_t mute;
3202     pa_sink *sink = NULL;
3203     pa_source *source = NULL;
3204     pa_sink_input *si = NULL;
3205     const char *name = NULL;
3206
3207     pa_native_connection_assert_ref(c);
3208     pa_assert(t);
3209
3210     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3211         (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
3212         (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
3213         pa_tagstruct_get_boolean(t, &mute) ||
3214         !pa_tagstruct_eof(t)) {
3215         protocol_error(c);
3216         return;
3217     }
3218
3219     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3220     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
3221     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3222     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3223     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3224
3225     switch (command) {
3226
3227         case PA_COMMAND_SET_SINK_MUTE:
3228
3229             if (idx != PA_INVALID_INDEX)
3230                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3231             else
3232                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
3233
3234             break;
3235
3236         case PA_COMMAND_SET_SOURCE_MUTE:
3237             if (idx != PA_INVALID_INDEX)
3238                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3239             else
3240                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
3241
3242             break;
3243
3244         case PA_COMMAND_SET_SINK_INPUT_MUTE:
3245             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3246             break;
3247
3248         default:
3249             pa_assert_not_reached();
3250     }
3251
3252     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
3253
3254     if (sink)
3255         pa_sink_set_mute(sink, mute);
3256     else if (source)
3257         pa_source_set_mute(source, mute);
3258     else if (si)
3259         pa_sink_input_set_mute(si, mute, TRUE);
3260
3261     pa_pstream_send_simple_ack(c->pstream, tag);
3262 }
3263
3264 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3265     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3266     uint32_t idx;
3267     pa_bool_t b;
3268     playback_stream *s;
3269
3270     pa_native_connection_assert_ref(c);
3271     pa_assert(t);
3272
3273     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3274         pa_tagstruct_get_boolean(t, &b) < 0 ||
3275         !pa_tagstruct_eof(t)) {
3276         protocol_error(c);
3277         return;
3278     }
3279
3280     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3281     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3282     s = pa_idxset_get_by_index(c->output_streams, idx);
3283     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3284     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3285
3286     pa_sink_input_cork(s->sink_input, b);
3287
3288     if (b)
3289         s->is_underrun = TRUE;
3290
3291     pa_pstream_send_simple_ack(c->pstream, tag);
3292 }
3293
3294 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3295     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3296     uint32_t idx;
3297     playback_stream *s;
3298
3299     pa_native_connection_assert_ref(c);
3300     pa_assert(t);
3301
3302     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3303         !pa_tagstruct_eof(t)) {
3304         protocol_error(c);
3305         return;
3306     }
3307
3308     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3309     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3310     s = pa_idxset_get_by_index(c->output_streams, idx);
3311     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3312     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3313
3314     switch (command) {
3315         case PA_COMMAND_FLUSH_PLAYBACK_STREAM:
3316             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL);
3317             break;
3318
3319         case PA_COMMAND_PREBUF_PLAYBACK_STREAM:
3320             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL);
3321             break;
3322
3323         case PA_COMMAND_TRIGGER_PLAYBACK_STREAM:
3324             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL);
3325             break;
3326
3327         default:
3328             pa_assert_not_reached();
3329     }
3330
3331     pa_pstream_send_simple_ack(c->pstream, tag);
3332 }
3333
3334 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3335     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3336     uint32_t idx;
3337     record_stream *s;
3338     pa_bool_t b;
3339
3340     pa_native_connection_assert_ref(c);
3341     pa_assert(t);
3342
3343     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3344         pa_tagstruct_get_boolean(t, &b) < 0 ||
3345         !pa_tagstruct_eof(t)) {
3346         protocol_error(c);
3347         return;
3348     }
3349
3350     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3351     s = pa_idxset_get_by_index(c->record_streams, idx);
3352     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3353
3354     pa_source_output_cork(s->source_output, b);
3355     pa_memblockq_prebuf_force(s->memblockq);
3356     pa_pstream_send_simple_ack(c->pstream, tag);
3357 }
3358
3359 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3360     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3361     uint32_t idx;
3362     record_stream *s;
3363
3364     pa_native_connection_assert_ref(c);
3365     pa_assert(t);
3366
3367     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3368         !pa_tagstruct_eof(t)) {
3369         protocol_error(c);
3370         return;
3371     }
3372
3373     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3374     s = pa_idxset_get_by_index(c->record_streams, idx);
3375     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3376
3377     pa_memblockq_flush_read(s->memblockq);
3378     pa_pstream_send_simple_ack(c->pstream, tag);
3379 }
3380
3381 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3382     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3383     uint32_t idx;
3384     uint32_t maxlength, tlength, prebuf, minreq, fragsize;
3385     pa_tagstruct *reply;
3386
3387     pa_native_connection_assert_ref(c);
3388     pa_assert(t);
3389
3390     if (pa_tagstruct_getu32(t, &idx) < 0) {
3391         protocol_error(c);
3392         return;
3393     }
3394
3395     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3396
3397     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR) {
3398         playback_stream *s;
3399         pa_bool_t adjust_latency = FALSE, early_requests = FALSE;
3400
3401         s = pa_idxset_get_by_index(c->output_streams, idx);
3402         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3403         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3404
3405         if (pa_tagstruct_get(
3406                     t,
3407                     PA_TAG_U32, &maxlength,
3408                     PA_TAG_U32, &tlength,
3409                     PA_TAG_U32, &prebuf,
3410                     PA_TAG_U32, &minreq,
3411                     PA_TAG_INVALID) < 0 ||
3412             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3413             (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) ||
3414             !pa_tagstruct_eof(t)) {
3415             protocol_error(c);
3416             return;
3417         }
3418
3419         fix_playback_buffer_attr_pre(s, adjust_latency, early_requests, &maxlength, &tlength, &prebuf, &minreq);
3420         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3421         pa_memblockq_set_tlength(s->memblockq, tlength);
3422         pa_memblockq_set_prebuf(s->memblockq, prebuf);
3423         pa_memblockq_set_minreq(s->memblockq, minreq);
3424         fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
3425
3426         reply = reply_new(tag);
3427         pa_tagstruct_putu32(reply, maxlength);
3428         pa_tagstruct_putu32(reply, tlength);
3429         pa_tagstruct_putu32(reply, prebuf);
3430         pa_tagstruct_putu32(reply, minreq);
3431
3432         if (c->version >= 13)
3433             pa_tagstruct_put_usec(reply, s->sink_latency);
3434
3435     } else {
3436         record_stream *s;
3437         pa_bool_t adjust_latency = FALSE, early_requests = FALSE;
3438         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR);
3439
3440         s = pa_idxset_get_by_index(c->record_streams, idx);
3441         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3442
3443         if (pa_tagstruct_get(
3444                     t,
3445                     PA_TAG_U32, &maxlength,
3446                     PA_TAG_U32, &fragsize,
3447                     PA_TAG_INVALID) < 0 ||
3448             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3449             (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) ||
3450             !pa_tagstruct_eof(t)) {
3451             protocol_error(c);
3452             return;
3453         }
3454
3455         fix_record_buffer_attr_pre(s, adjust_latency, early_requests, &maxlength, &fragsize);
3456         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3457         fix_record_buffer_attr_post(s, &maxlength, &fragsize);
3458
3459         reply = reply_new(tag);
3460         pa_tagstruct_putu32(reply, maxlength);
3461         pa_tagstruct_putu32(reply, fragsize);
3462
3463         if (c->version >= 13)
3464             pa_tagstruct_put_usec(reply, s->source_latency);
3465     }
3466
3467     pa_pstream_send_tagstruct(c->pstream, reply);
3468 }
3469
3470 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3471     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3472     uint32_t idx;
3473     uint32_t rate;
3474
3475     pa_native_connection_assert_ref(c);
3476     pa_assert(t);
3477
3478     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3479         pa_tagstruct_getu32(t, &rate) < 0 ||
3480         !pa_tagstruct_eof(t)) {
3481         protocol_error(c);
3482         return;
3483     }
3484
3485     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3486     CHECK_VALIDITY(c->pstream, rate > 0 && rate <= PA_RATE_MAX, tag, PA_ERR_INVALID);
3487
3488     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) {
3489         playback_stream *s;
3490
3491         s = pa_idxset_get_by_index(c->output_streams, idx);
3492         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3493         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3494
3495         pa_sink_input_set_rate(s->sink_input, rate);
3496
3497     } else {
3498         record_stream *s;
3499         pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE);
3500
3501         s = pa_idxset_get_by_index(c->record_streams, idx);
3502         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3503
3504         pa_source_output_set_rate(s->source_output, rate);
3505     }
3506
3507     pa_pstream_send_simple_ack(c->pstream, tag);
3508 }
3509
3510 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3511     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3512     uint32_t idx;
3513     uint32_t mode;
3514     pa_proplist *p;
3515
3516     pa_native_connection_assert_ref(c);
3517     pa_assert(t);
3518
3519     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3520
3521     p = pa_proplist_new();
3522
3523     if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) {
3524
3525         if (pa_tagstruct_getu32(t, &mode) < 0 ||
3526             pa_tagstruct_get_proplist(t, p) < 0 ||
3527             !pa_tagstruct_eof(t)) {
3528             protocol_error(c);
3529             pa_proplist_free(p);
3530             return;
3531         }
3532
3533     } else {
3534
3535         if (pa_tagstruct_getu32(t, &idx) < 0 ||
3536             pa_tagstruct_getu32(t, &mode) < 0 ||
3537             pa_tagstruct_get_proplist(t, p) < 0 ||
3538             !pa_tagstruct_eof(t)) {
3539             protocol_error(c);
3540             pa_proplist_free(p);
3541             return;
3542         }
3543     }
3544
3545     CHECK_VALIDITY(c->pstream, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, tag, PA_ERR_INVALID);
3546
3547     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST) {
3548         playback_stream *s;
3549
3550         s = pa_idxset_get_by_index(c->output_streams, idx);
3551         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3552         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3553
3554         pa_proplist_update(s->sink_input->proplist, mode, p);
3555         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3556
3557     } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) {
3558         record_stream *s;
3559
3560         s = pa_idxset_get_by_index(c->record_streams, idx);
3561         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3562
3563         pa_proplist_update(s->source_output->proplist, mode, p);
3564         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3565     } else {
3566         pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST);
3567
3568         pa_proplist_update(c->client->proplist, mode, p);
3569         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3570     }
3571
3572     pa_pstream_send_simple_ack(c->pstream, tag);
3573 }
3574
3575 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3576     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3577     uint32_t idx;
3578     unsigned changed = 0;
3579     pa_proplist *p;
3580     pa_strlist *l = NULL;
3581
3582     pa_native_connection_assert_ref(c);
3583     pa_assert(t);
3584
3585     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3586
3587     if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) {
3588
3589         if (pa_tagstruct_getu32(t, &idx) < 0) {
3590             protocol_error(c);
3591             return;
3592         }
3593     }
3594
3595     if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3596         playback_stream *s;
3597
3598         s = pa_idxset_get_by_index(c->output_streams, idx);
3599         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3600         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3601
3602         p = s->sink_input->proplist;
3603
3604     } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3605         record_stream *s;
3606
3607         s = pa_idxset_get_by_index(c->record_streams, idx);
3608         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3609
3610         p = s->source_output->proplist;
3611     } else {
3612         pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3613
3614         p = c->client->proplist;
3615     }
3616
3617     for (;;) {
3618         const char *k;
3619
3620         if (pa_tagstruct_gets(t, &k) < 0) {
3621             protocol_error(c);
3622             pa_strlist_free(l);
3623             return;
3624         }
3625
3626         if (!k)
3627             break;
3628
3629         l = pa_strlist_prepend(l, k);
3630     }
3631
3632     if (!pa_tagstruct_eof(t)) {
3633         protocol_error(c);
3634         pa_strlist_free(l);
3635         return;
3636     }
3637
3638     for (;;) {
3639         char *z;
3640
3641         l = pa_strlist_pop(l, &z);
3642
3643         if (!z)
3644             break;
3645
3646         changed += (unsigned) (pa_proplist_unset(p, z) >= 0);
3647         pa_xfree(z);
3648     }
3649
3650     pa_pstream_send_simple_ack(c->pstream, tag);
3651
3652     if (changed) {
3653         if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3654             playback_stream *s;
3655
3656             s = pa_idxset_get_by_index(c->output_streams, idx);
3657             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3658
3659         } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3660             record_stream *s;
3661
3662             s = pa_idxset_get_by_index(c->record_streams, idx);
3663             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3664
3665         } else {
3666             pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3667             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3668         }
3669     }
3670 }
3671
3672 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3673     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3674     const char *s;
3675
3676     pa_native_connection_assert_ref(c);
3677     pa_assert(t);
3678
3679     if (pa_tagstruct_gets(t, &s) < 0 ||
3680         !pa_tagstruct_eof(t)) {
3681         protocol_error(c);
3682         return;
3683     }
3684
3685     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3686     CHECK_VALIDITY(c->pstream, !s || pa_namereg_is_valid_name(s), tag, PA_ERR_INVALID);
3687
3688     if (command == PA_COMMAND_SET_DEFAULT_SOURCE) {
3689         pa_source *source;
3690
3691         source = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SOURCE);
3692         CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
3693
3694         pa_namereg_set_default_source(c->protocol->core, source);
3695     } else {
3696         pa_sink *sink;
3697         pa_assert(command == PA_COMMAND_SET_DEFAULT_SINK);
3698
3699         sink = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SINK);
3700         CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
3701
3702         pa_namereg_set_default_sink(c->protocol->core, sink);
3703     }
3704
3705     pa_pstream_send_simple_ack(c->pstream, tag);
3706 }
3707
3708 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3709     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3710     uint32_t idx;
3711     const char *name;
3712
3713     pa_native_connection_assert_ref(c);
3714     pa_assert(t);
3715
3716     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3717         pa_tagstruct_gets(t, &name) < 0 ||
3718         !pa_tagstruct_eof(t)) {
3719         protocol_error(c);
3720         return;
3721     }
3722
3723     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3724     CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3725
3726     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
3727         playback_stream *s;
3728
3729         s = pa_idxset_get_by_index(c->output_streams, idx);
3730         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3731         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3732
3733         pa_sink_input_set_name(s->sink_input, name);
3734
3735     } else {
3736         record_stream *s;
3737         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_NAME);
3738
3739         s = pa_idxset_get_by_index(c->record_streams, idx);
3740         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3741
3742         pa_source_output_set_name(s->source_output, name);
3743     }
3744
3745     pa_pstream_send_simple_ack(c->pstream, tag);
3746 }
3747
3748 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3749     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3750     uint32_t idx;
3751
3752     pa_native_connection_assert_ref(c);
3753     pa_assert(t);
3754
3755     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3756         !pa_tagstruct_eof(t)) {
3757         protocol_error(c);
3758         return;
3759     }
3760
3761     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3762
3763     if (command == PA_COMMAND_KILL_CLIENT) {
3764         pa_client *client;
3765
3766         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
3767         CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY);
3768
3769         pa_native_connection_ref(c);
3770         pa_client_kill(client);
3771
3772     } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
3773         pa_sink_input *s;
3774
3775         s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3776         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3777
3778         pa_native_connection_ref(c);
3779         pa_sink_input_kill(s);
3780     } else {
3781         pa_source_output *s;
3782
3783         pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
3784
3785         s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3786         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3787
3788         pa_native_connection_ref(c);
3789         pa_source_output_kill(s);
3790     }
3791
3792     pa_pstream_send_simple_ack(c->pstream, tag);
3793     pa_native_connection_unref(c);
3794 }
3795
3796 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3797     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3798     pa_module *m;
3799     const char *name, *argument;
3800     pa_tagstruct *reply;
3801
3802     pa_native_connection_assert_ref(c);
3803     pa_assert(t);
3804
3805     if (pa_tagstruct_gets(t, &name) < 0 ||
3806         pa_tagstruct_gets(t, &argument) < 0 ||
3807         !pa_tagstruct_eof(t)) {
3808         protocol_error(c);
3809         return;
3810     }
3811
3812     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3813     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID);
3814     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3815
3816     if (!(m = pa_module_load(c->protocol->core, name, argument))) {
3817         pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED);
3818         return;
3819     }
3820
3821     reply = reply_new(tag);
3822     pa_tagstruct_putu32(reply, m->index);
3823     pa_pstream_send_tagstruct(c->pstream, reply);
3824 }
3825
3826 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3827     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3828     uint32_t idx;
3829     pa_module *m;
3830
3831     pa_native_connection_assert_ref(c);
3832     pa_assert(t);
3833
3834     if (pa_tagstruct_getu32(t, &idx) < 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     m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3842     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY);
3843
3844     pa_module_unload_request(m, FALSE);
3845     pa_pstream_send_simple_ack(c->pstream, tag);
3846 }
3847
3848 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3849     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3850     uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX;
3851     const char *name_device = NULL;
3852
3853     pa_native_connection_assert_ref(c);
3854     pa_assert(t);
3855
3856     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3857         pa_tagstruct_getu32(t, &idx_device) < 0 ||
3858         pa_tagstruct_gets(t, &name_device) < 0 ||
3859         !pa_tagstruct_eof(t)) {
3860         protocol_error(c);
3861         return;
3862     }
3863
3864     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3865     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3866
3867     CHECK_VALIDITY(c->pstream, !name_device || pa_namereg_is_valid_name(name_device), tag, PA_ERR_INVALID);
3868     CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || name_device, tag, PA_ERR_INVALID);
3869     CHECK_VALIDITY(c->pstream, idx_device == PA_INVALID_INDEX || !name_device, tag, PA_ERR_INVALID);
3870     CHECK_VALIDITY(c->pstream, !name_device || idx_device == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3871
3872     if (command == PA_COMMAND_MOVE_SINK_INPUT) {
3873         pa_sink_input *si = NULL;
3874         pa_sink *sink = NULL;
3875
3876         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3877
3878         if (idx_device != PA_INVALID_INDEX)
3879             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device);
3880         else
3881             sink = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SINK);
3882
3883         CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY);
3884
3885         if (pa_sink_input_move_to(si, sink, TRUE) < 0) {
3886             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3887             return;
3888         }
3889     } else {
3890         pa_source_output *so = NULL;
3891         pa_source *source;
3892
3893         pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT);
3894
3895         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3896
3897         if (idx_device != PA_INVALID_INDEX)
3898             source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device);
3899         else
3900             source = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SOURCE);
3901
3902         CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY);
3903
3904         if (pa_source_output_move_to(so, source, TRUE) < 0) {
3905             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3906             return;
3907         }
3908     }
3909
3910     pa_pstream_send_simple_ack(c->pstream, tag);
3911 }
3912
3913 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3914     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3915     uint32_t idx = PA_INVALID_INDEX;
3916     const char *name = NULL;
3917     pa_bool_t b;
3918
3919     pa_native_connection_assert_ref(c);
3920     pa_assert(t);
3921
3922     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3923         pa_tagstruct_gets(t, &name) < 0 ||
3924         pa_tagstruct_get_boolean(t, &b) < 0 ||
3925         !pa_tagstruct_eof(t)) {
3926         protocol_error(c);
3927         return;
3928     }
3929
3930     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3931     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name) || *name == 0, tag, PA_ERR_INVALID);
3932     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
3933     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
3934     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3935
3936     if (command == PA_COMMAND_SUSPEND_SINK) {
3937
3938         if (idx == PA_INVALID_INDEX && name && !*name) {
3939
3940             pa_log_debug("%s all sinks", b ? "Suspending" : "Resuming");
3941
3942             if (pa_sink_suspend_all(c->protocol->core, b) < 0) {
3943                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3944                 return;
3945             }
3946         } else {
3947             pa_sink *sink = NULL;
3948
3949             if (idx != PA_INVALID_INDEX)
3950                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3951             else
3952                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK);
3953
3954             CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
3955
3956             if (pa_sink_suspend(sink, b) < 0) {
3957                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3958                 return;
3959             }
3960         }
3961     } else {
3962
3963         pa_assert(command == PA_COMMAND_SUSPEND_SOURCE);
3964
3965         if (idx == PA_INVALID_INDEX && name && !*name) {
3966
3967             pa_log_debug("%s all sources", b ? "Suspending" : "Resuming");
3968
3969             if (pa_source_suspend_all(c->protocol->core, b) < 0) {
3970                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3971                 return;
3972             }
3973
3974         } else {
3975             pa_source *source;
3976
3977             if (idx != PA_INVALID_INDEX)
3978                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3979             else
3980                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE);
3981
3982             CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
3983
3984             if (pa_source_suspend(source, b) < 0) {
3985                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3986                 return;
3987             }
3988         }
3989     }
3990
3991     pa_pstream_send_simple_ack(c->pstream, tag);
3992 }
3993
3994 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3995     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3996     uint32_t idx = PA_INVALID_INDEX;
3997     const char *name = NULL;
3998     pa_module *m;
3999     pa_native_protocol_ext_cb_t cb;
4000
4001     pa_native_connection_assert_ref(c);
4002     pa_assert(t);
4003
4004     if (pa_tagstruct_getu32(t, &idx) < 0 ||
4005         pa_tagstruct_gets(t, &name) < 0) {
4006         protocol_error(c);
4007         return;
4008     }
4009
4010     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
4011     CHECK_VALIDITY(c->pstream, !name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
4012     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
4013     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
4014     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
4015
4016     if (idx != PA_INVALID_INDEX)
4017         m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
4018     else {
4019         for (m = pa_idxset_first(c->protocol->core->modules, &idx); m; m = pa_idxset_next(c->protocol->core->modules, &idx))
4020             if (strcmp(name, m->name) == 0)
4021                 break;
4022     }
4023
4024     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
4025     CHECK_VALIDITY(c->pstream, m->load_once || idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
4026
4027     cb = (pa_native_protocol_ext_cb_t) (unsigned long) pa_hashmap_get(c->protocol->extensions, m);
4028     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
4029
4030     if (cb(c->protocol, m, c, tag, t) < 0)
4031         protocol_error(c);
4032 }
4033
4034 static void command_set_card_profile(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
4035     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4036     uint32_t idx = PA_INVALID_INDEX;
4037     const char *name = NULL, *profile = NULL;
4038     pa_card *card = NULL;
4039
4040     pa_native_connection_assert_ref(c);
4041     pa_assert(t);
4042
4043     if (pa_tagstruct_getu32(t, &idx) < 0 ||
4044         pa_tagstruct_gets(t, &name) < 0 ||
4045         pa_tagstruct_gets(t, &profile) < 0 ||
4046         !pa_tagstruct_eof(t)) {
4047         protocol_error(c);
4048         return;
4049     }
4050
4051     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
4052     CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID);
4053     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
4054     CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
4055     CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
4056
4057     if (idx != PA_INVALID_INDEX)
4058         card = pa_idxset_get_by_index(c->protocol->core->cards, idx);
4059     else
4060         card = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_CARD);
4061
4062     CHECK_VALIDITY(c->pstream, card, tag, PA_ERR_NOENTITY);
4063
4064     if (pa_card_set_profile(card, profile) < 0) {
4065         pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
4066         return;
4067     }
4068
4069     pa_pstream_send_simple_ack(c->pstream, tag);
4070 }
4071
4072 /*** pstream callbacks ***/
4073
4074 static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
4075     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4076
4077     pa_assert(p);
4078     pa_assert(packet);
4079     pa_native_connection_assert_ref(c);
4080
4081     if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) {
4082         pa_log("invalid packet.");
4083         native_connection_unlink(c);
4084     }
4085 }
4086
4087 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) {
4088     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4089     output_stream *stream;
4090
4091     pa_assert(p);
4092     pa_assert(chunk);
4093     pa_native_connection_assert_ref(c);
4094
4095     if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) {
4096         pa_log("client sent block for invalid stream.");
4097         /* Ignoring */
4098         return;
4099     }
4100
4101 /*     pa_log("got %lu bytes", (unsigned long) chunk->length); */
4102
4103     if (playback_stream_isinstance(stream)) {
4104         playback_stream *ps = PLAYBACK_STREAM(stream);
4105
4106         if (seek != PA_SEEK_RELATIVE || offset != 0)
4107             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);
4108
4109         pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
4110
4111     } else {
4112         upload_stream *u = UPLOAD_STREAM(stream);
4113         size_t l;
4114
4115         if (!u->memchunk.memblock) {
4116             if (u->length == chunk->length) {
4117                 u->memchunk = *chunk;
4118                 pa_memblock_ref(u->memchunk.memblock);
4119                 u->length = 0;
4120             } else {
4121                 u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length);
4122                 u->memchunk.index = u->memchunk.length = 0;
4123             }
4124         }
4125
4126         pa_assert(u->memchunk.memblock);
4127
4128         l = u->length;
4129         if (l > chunk->length)
4130             l = chunk->length;
4131
4132
4133         if (l > 0) {
4134             void *src, *dst;
4135             dst = pa_memblock_acquire(u->memchunk.memblock);
4136             src = pa_memblock_acquire(chunk->memblock);
4137
4138             memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length,
4139                    (uint8_t*) src+chunk->index, l);
4140
4141             pa_memblock_release(u->memchunk.memblock);
4142             pa_memblock_release(chunk->memblock);
4143
4144             u->memchunk.length += l;
4145             u->length -= l;
4146         }
4147     }
4148 }
4149
4150 static void pstream_die_callback(pa_pstream *p, void *userdata) {
4151     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4152
4153     pa_assert(p);
4154     pa_native_connection_assert_ref(c);
4155
4156     native_connection_unlink(c);
4157     pa_log_info("Connection died.");
4158 }
4159
4160 static void pstream_drain_callback(pa_pstream *p, void *userdata) {
4161     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4162
4163     pa_assert(p);
4164     pa_native_connection_assert_ref(c);
4165
4166     native_connection_send_memblock(c);
4167 }
4168
4169 static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
4170     pa_thread_mq *q;
4171
4172     if (!(q = pa_thread_mq_get()))
4173         pa_pstream_send_revoke(p, block_id);
4174     else
4175         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
4176 }
4177
4178 static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
4179     pa_thread_mq *q;
4180
4181     if (!(q = pa_thread_mq_get()))
4182         pa_pstream_send_release(p, block_id);
4183     else
4184         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
4185 }
4186
4187 /*** client callbacks ***/
4188
4189 static void client_kill_cb(pa_client *c) {
4190     pa_assert(c);
4191
4192     native_connection_unlink(PA_NATIVE_CONNECTION(c->userdata));
4193     pa_log_info("Connection killed.");
4194 }
4195
4196 /*** module entry points ***/
4197
4198 static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
4199     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4200
4201     pa_assert(m);
4202     pa_assert(tv);
4203     pa_native_connection_assert_ref(c);
4204     pa_assert(c->auth_timeout_event == e);
4205
4206     if (!c->authorized) {
4207         native_connection_unlink(c);
4208         pa_log_info("Connection terminated due to authentication timeout.");
4209     }
4210 }
4211
4212 void pa_native_protocol_connect(pa_native_protocol *p, pa_iochannel *io, pa_native_options *o) {
4213     pa_native_connection *c;
4214     char pname[128];
4215     pa_client *client;
4216     pa_client_new_data data;
4217
4218     pa_assert(p);
4219     pa_assert(io);
4220     pa_assert(o);
4221
4222     if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
4223         pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
4224         pa_iochannel_free(io);
4225         return;
4226     }
4227
4228     pa_client_new_data_init(&data);
4229     data.module = o->module;
4230     data.driver = __FILE__;
4231     pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
4232     pa_proplist_setf(data.proplist, PA_PROP_APPLICATION_NAME, "Native client (%s)", pname);
4233     pa_proplist_sets(data.proplist, "native-protocol.peer", pname);
4234     client = pa_client_new(p->core, &data);
4235     pa_client_new_data_done(&data);
4236
4237     if (!client)
4238         return;
4239
4240     c = pa_msgobject_new(pa_native_connection);
4241     c->parent.parent.free = native_connection_free;
4242     c->parent.process_msg = native_connection_process_msg;
4243     c->protocol = p;
4244     c->options = pa_native_options_ref(o);
4245     c->authorized = FALSE;
4246
4247     if (o->auth_anonymous) {
4248         pa_log_info("Client authenticated anonymously.");
4249         c->authorized = TRUE;
4250     }
4251
4252     if (!c->authorized &&
4253         o->auth_ip_acl &&
4254         pa_ip_acl_check(o->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) {
4255
4256         pa_log_info("Client authenticated by IP ACL.");
4257         c->authorized = TRUE;
4258     }
4259
4260     if (!c->authorized) {
4261         struct timeval tv;
4262         pa_gettimeofday(&tv);
4263         tv.tv_sec += AUTH_TIMEOUT;
4264         c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
4265     } else
4266         c->auth_timeout_event = NULL;
4267
4268     c->is_local = pa_iochannel_socket_is_local(io);
4269     c->version = 8;
4270
4271     c->client = client;
4272     c->client->kill = client_kill_cb;
4273     c->client->userdata = c;
4274
4275     c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool);
4276     pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
4277     pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
4278     pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
4279     pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
4280     pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c);
4281     pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c);
4282
4283     c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
4284
4285     c->record_streams = pa_idxset_new(NULL, NULL);
4286     c->output_streams = pa_idxset_new(NULL, NULL);
4287
4288     c->rrobin_index = PA_IDXSET_INVALID;
4289     c->subscription = NULL;
4290
4291     pa_idxset_put(p->connections, c, NULL);
4292
4293 #ifdef HAVE_CREDS
4294     if (pa_iochannel_creds_supported(io))
4295         pa_iochannel_creds_enable(io);
4296 #endif
4297
4298     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_CONNECTION_PUT], c);
4299 }
4300
4301 void pa_native_protocol_disconnect(pa_native_protocol *p, pa_module *m) {
4302     pa_native_connection *c;
4303     void *state = NULL;
4304
4305     pa_assert(p);
4306     pa_assert(m);
4307
4308     while ((c = pa_idxset_iterate(p->connections, &state, NULL)))
4309         if (c->options->module == m)
4310             native_connection_unlink(c);
4311 }
4312
4313 static pa_native_protocol* native_protocol_new(pa_core *c) {
4314     pa_native_protocol *p;
4315     pa_native_hook_t h;
4316
4317     pa_assert(c);
4318
4319     p = pa_xnew(pa_native_protocol, 1);
4320     PA_REFCNT_INIT(p);
4321     p->core = c;
4322     p->connections = pa_idxset_new(NULL, NULL);
4323
4324     p->servers = NULL;
4325
4326     p->extensions = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
4327
4328     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4329         pa_hook_init(&p->hooks[h], p);
4330
4331     pa_assert_se(pa_shared_set(c, "native-protocol", p) >= 0);
4332
4333     return p;
4334 }
4335
4336 pa_native_protocol* pa_native_protocol_get(pa_core *c) {
4337     pa_native_protocol *p;
4338
4339     if ((p = pa_shared_get(c, "native-protocol")))
4340         return pa_native_protocol_ref(p);
4341
4342     return native_protocol_new(c);
4343 }
4344
4345 pa_native_protocol* pa_native_protocol_ref(pa_native_protocol *p) {
4346     pa_assert(p);
4347     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4348
4349     PA_REFCNT_INC(p);
4350
4351     return p;
4352 }
4353
4354 void pa_native_protocol_unref(pa_native_protocol *p) {
4355     pa_native_connection *c;
4356     pa_native_hook_t h;
4357
4358     pa_assert(p);
4359     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4360
4361     if (PA_REFCNT_DEC(p) > 0)
4362         return;
4363
4364     while ((c = pa_idxset_first(p->connections, NULL)))
4365         native_connection_unlink(c);
4366
4367     pa_idxset_free(p->connections, NULL, NULL);
4368
4369     pa_strlist_free(p->servers);
4370
4371     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4372         pa_hook_done(&p->hooks[h]);
4373
4374     pa_hashmap_free(p->extensions, NULL, NULL);
4375
4376     pa_assert_se(pa_shared_remove(p->core, "native-protocol") >= 0);
4377
4378     pa_xfree(p);
4379 }
4380
4381 void pa_native_protocol_add_server_string(pa_native_protocol *p, const char *name) {
4382     pa_assert(p);
4383     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4384     pa_assert(name);
4385
4386     p->servers = pa_strlist_prepend(p->servers, name);
4387
4388     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4389 }
4390
4391 void pa_native_protocol_remove_server_string(pa_native_protocol *p, const char *name) {
4392     pa_assert(p);
4393     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4394     pa_assert(name);
4395
4396     p->servers = pa_strlist_remove(p->servers, name);
4397
4398     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4399 }
4400
4401 pa_hook *pa_native_protocol_hooks(pa_native_protocol *p) {
4402     pa_assert(p);
4403     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4404
4405     return p->hooks;
4406 }
4407
4408 pa_strlist *pa_native_protocol_servers(pa_native_protocol *p) {
4409     pa_assert(p);
4410     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4411
4412     return p->servers;
4413 }
4414
4415 int pa_native_protocol_install_ext(pa_native_protocol *p, pa_module *m, pa_native_protocol_ext_cb_t cb) {
4416     pa_assert(p);
4417     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4418     pa_assert(m);
4419     pa_assert(cb);
4420     pa_assert(!pa_hashmap_get(p->extensions, m));
4421
4422     pa_assert_se(pa_hashmap_put(p->extensions, m, (void*) (unsigned long) cb) == 0);
4423     return 0;
4424 }
4425
4426 void pa_native_protocol_remove_ext(pa_native_protocol *p, pa_module *m) {
4427     pa_assert(p);
4428     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4429     pa_assert(m);
4430
4431     pa_assert_se(pa_hashmap_remove(p->extensions, m));
4432 }
4433
4434 pa_native_options* pa_native_options_new(void) {
4435     pa_native_options *o;
4436
4437     o = pa_xnew0(pa_native_options, 1);
4438     PA_REFCNT_INIT(o);
4439
4440     return o;
4441 }
4442
4443 pa_native_options* pa_native_options_ref(pa_native_options *o) {
4444     pa_assert(o);
4445     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4446
4447     PA_REFCNT_INC(o);
4448
4449     return o;
4450 }
4451
4452 void pa_native_options_unref(pa_native_options *o) {
4453     pa_assert(o);
4454     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4455
4456     if (PA_REFCNT_DEC(o) > 0)
4457         return;
4458
4459     pa_xfree(o->auth_group);
4460
4461     if (o->auth_ip_acl)
4462         pa_ip_acl_free(o->auth_ip_acl);
4463
4464     if (o->auth_cookie)
4465         pa_auth_cookie_unref(o->auth_cookie);
4466
4467     pa_xfree(o);
4468 }
4469
4470 int pa_native_options_parse(pa_native_options *o, pa_core *c, pa_modargs *ma) {
4471     pa_bool_t enabled;
4472     const char *acl;
4473
4474     pa_assert(o);
4475     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4476     pa_assert(ma);
4477
4478     if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &o->auth_anonymous) < 0) {
4479         pa_log("auth-anonymous= expects a boolean argument.");
4480         return -1;
4481     }
4482
4483     enabled = TRUE;
4484     if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &enabled) < 0) {
4485         pa_log("auth-group-enabled= expects a boolean argument.");
4486         return -1;
4487     }
4488
4489     pa_xfree(o->auth_group);
4490     o->auth_group = enabled ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL;
4491
4492 #ifndef HAVE_CREDS
4493     if (o->auth_group)
4494         pa_log_warn("Authentication group configured, but not available on local system. Ignoring.");
4495 #endif
4496
4497     if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) {
4498         pa_ip_acl *ipa;
4499
4500         if (!(ipa = pa_ip_acl_new(acl))) {
4501             pa_log("Failed to parse IP ACL '%s'", acl);
4502             return -1;
4503         }
4504
4505         if (o->auth_ip_acl)
4506             pa_ip_acl_free(o->auth_ip_acl);
4507
4508         o->auth_ip_acl = ipa;
4509     }
4510
4511     enabled = TRUE;
4512     if (pa_modargs_get_value_boolean(ma, "auth-cookie-enabled", &enabled) < 0) {
4513         pa_log("auth-cookie-enabled= expects a boolean argument.");
4514         return -1;
4515     }
4516
4517     if (o->auth_cookie)
4518         pa_auth_cookie_unref(o->auth_cookie);
4519
4520     if (enabled) {
4521         const char *cn;
4522
4523         /* The new name for this is 'auth-cookie', for compat reasons
4524          * we check the old name too */
4525         if (!(cn = pa_modargs_get_value(ma, "auth-cookie", NULL)))
4526             if (!(cn = pa_modargs_get_value(ma, "cookie", NULL)))
4527                 cn = PA_NATIVE_COOKIE_FILE;
4528
4529         if (!(o->auth_cookie = pa_auth_cookie_get(c, cn, PA_NATIVE_COOKIE_LENGTH)))
4530             return -1;
4531
4532     } else
4533           o->auth_cookie = NULL;
4534
4535     return 0;
4536 }
4537
4538 pa_pstream* pa_native_connection_get_pstream(pa_native_connection *c) {
4539     pa_native_connection_assert_ref(c);
4540
4541     return c->pstream;
4542 }