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

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31
  32 #include <pulse/timeval.h>
  33 #include <pulse/version.h>
  34 #include <pulse/utf8.h>
  35 #include <pulse/util.h>
  36 #include <pulse/xmalloc.h>
  37
  38 #include <pulsecore/native-common.h>
  39 #include <pulsecore/packet.h>
  40 #include <pulsecore/client.h>
  41 #include <pulsecore/source-output.h>
  42 #include <pulsecore/sink-input.h>
  43 #include <pulsecore/pstream.h>
  44 #include <pulsecore/tagstruct.h>
  45 #include <pulsecore/pdispatch.h>
  46 #include <pulsecore/pstream-util.h>
  47 #include <pulsecore/authkey.h>
  48 #include <pulsecore/namereg.h>
  49 #include <pulsecore/core-scache.h>
  50 #include <pulsecore/core-subscribe.h>
  51 #include <pulsecore/log.h>
  52 #include <pulsecore/autoload.h>
  53 #include <pulsecore/authkey-prop.h>
  54 #include <pulsecore/strlist.h>
  55 #include <pulsecore/shared.h>
  56 #include <pulsecore/sample-util.h>
  57 #include <pulsecore/llist.h>
  58 #include <pulsecore/creds.h>
  59 #include <pulsecore/core-util.h>
  60 #include <pulsecore/ipacl.h>
  61 #include <pulsecore/thread-mq.h>
  62
  63 #include "protocol-native.h"
  64
  65 /* Kick a client if it doesn't authenticate within this time */
  66 #define AUTH_TIMEOUT 60
  67
  68 /* Don't accept more connection than this */
  69 #define MAX_CONNECTIONS 64
  70
  71 #define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */
  72 #define DEFAULT_TLENGTH_MSEC 2000 /* 2s */
  73 #define DEFAULT_PROCESS_MSEC 20   /* 20ms */
  74 #define DEFAULT_FRAGSIZE_MSEC DEFAULT_TLENGTH_MSEC
  75
  76 struct pa_native_protocol;
  77
  78 typedef struct record_stream {
  79     pa_msgobject parent;
  80
  81     pa_native_connection *connection;
  82     uint32_t index;
  83
  84     pa_source_output *source_output;
  85     pa_memblockq *memblockq;
  86     size_t fragment_size;
  87     pa_usec_t source_latency;
  88 } record_stream;
  89
  90 PA_DECLARE_CLASS(record_stream);
  91 #define RECORD_STREAM(o) (record_stream_cast(o))
  92 static PA_DEFINE_CHECK_TYPE(record_stream, pa_msgobject);
  93
  94 typedef struct output_stream {
  95     pa_msgobject parent;
  96 } output_stream;
  97
  98 PA_DECLARE_CLASS(output_stream);
  99 #define OUTPUT_STREAM(o) (output_stream_cast(o))
 100 static PA_DEFINE_CHECK_TYPE(output_stream, pa_msgobject);
 101
 102 typedef struct playback_stream {
 103     output_stream parent;
 104
 105     pa_native_connection *connection;
 106     uint32_t index;
 107
 108     pa_sink_input *sink_input;
 109     pa_memblockq *memblockq;
 110     pa_bool_t is_underrun:1;
 111     pa_bool_t drain_request:1;
 112     uint32_t drain_tag;
 113     uint32_t syncid;
 114
 115     pa_atomic_t missing;
 116     size_t minreq;
 117     pa_usec_t sink_latency;
 118
 119     /* Only updated after SINK_INPUT_MESSAGE_UPDATE_LATENCY */
 120     int64_t read_index, write_index;
 121     size_t render_memblockq_length;
 122 } playback_stream;
 123
 124 PA_DECLARE_CLASS(playback_stream);
 125 #define PLAYBACK_STREAM(o) (playback_stream_cast(o))
 126 static PA_DEFINE_CHECK_TYPE(playback_stream, output_stream);
 127
 128 typedef struct upload_stream {
 129     output_stream parent;
 130
 131     pa_native_connection *connection;
 132     uint32_t index;
 133
 134     pa_memchunk memchunk;
 135     size_t length;
 136     char *name;
 137     pa_sample_spec sample_spec;
 138     pa_channel_map channel_map;
 139     pa_proplist *proplist;
 140 } upload_stream;
 141
 142 PA_DECLARE_CLASS(upload_stream);
 143 #define UPLOAD_STREAM(o) (upload_stream_cast(o))
 144 static PA_DEFINE_CHECK_TYPE(upload_stream, output_stream);
 145
 146 struct pa_native_connection {
 147     pa_msgobject parent;
 148     pa_native_protocol *protocol;
 149     pa_native_options *options;
 150     pa_bool_t authorized:1;
 151     pa_bool_t is_local:1;
 152     uint32_t version;
 153     pa_client *client;
 154     pa_pstream *pstream;
 155     pa_pdispatch *pdispatch;
 156     pa_idxset *record_streams, *output_streams;
 157     uint32_t rrobin_index;
 158     pa_subscription *subscription;
 159     pa_time_event *auth_timeout_event;
 160 };
 161
 162 PA_DECLARE_CLASS(pa_native_connection);
 163 #define PA_NATIVE_CONNECTION(o) (pa_native_connection_cast(o))
 164 static PA_DEFINE_CHECK_TYPE(pa_native_connection, pa_msgobject);
 165
 166 struct pa_native_protocol {
 167     PA_REFCNT_DECLARE;
 168
 169     pa_core *core;
 170     pa_idxset *connections;
 171
 172     pa_strlist *servers;
 173     pa_hook hooks[PA_NATIVE_HOOK_MAX];
 174
 175     pa_hashmap *extensions;
 176 };
 177
 178 enum {
 179     SINK_INPUT_MESSAGE_POST_DATA = PA_SINK_INPUT_MESSAGE_MAX, /* data from main loop to sink input */
 180     SINK_INPUT_MESSAGE_DRAIN, /* disabled prebuf, get playback started. */
 181     SINK_INPUT_MESSAGE_FLUSH,
 182     SINK_INPUT_MESSAGE_TRIGGER,
 183     SINK_INPUT_MESSAGE_SEEK,
 184     SINK_INPUT_MESSAGE_PREBUF_FORCE,
 185     SINK_INPUT_MESSAGE_UPDATE_LATENCY
 186 };
 187
 188 enum {
 189     PLAYBACK_STREAM_MESSAGE_REQUEST_DATA,      /* data requested from sink input from the main loop */
 190     PLAYBACK_STREAM_MESSAGE_UNDERFLOW,
 191     PLAYBACK_STREAM_MESSAGE_OVERFLOW,
 192     PLAYBACK_STREAM_MESSAGE_DRAIN_ACK,
 193     PLAYBACK_STREAM_MESSAGE_STARTED
 194 };
 195
 196 enum {
 197     RECORD_STREAM_MESSAGE_POST_DATA         /* data from source output to main loop */
 198 };
 199
 200 enum {
 201     CONNECTION_MESSAGE_RELEASE,
 202     CONNECTION_MESSAGE_REVOKE
 203 };
 204
 205 static int sink_input_pop_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk);
 206 static void sink_input_kill_cb(pa_sink_input *i);
 207 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend);
 208 static void sink_input_moved_cb(pa_sink_input *i);
 209 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes);
 210 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes);
 211 static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes);
 212
 213 static void native_connection_send_memblock(pa_native_connection *c);
 214 static void playback_stream_request_bytes(struct playback_stream*s);
 215
 216 static void source_output_kill_cb(pa_source_output *o);
 217 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk);
 218 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend);
 219 static void source_output_moved_cb(pa_source_output *o);
 220 static pa_usec_t source_output_get_latency_cb(pa_source_output *o);
 221
 222 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
 223
 224 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 225 static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 226 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 227 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 228 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 229 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 230 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 231 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 232 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 233 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 234 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 235 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 236 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 237 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 238 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 239 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 240 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 241 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 242 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 243 static void command_set_volume(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 244 static void command_set_mute(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 245 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 246 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 247 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 248 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 249 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 250 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 251 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 252 static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 253 static void command_remove_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 254 static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 255 static void command_get_autoload_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 256 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 257 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 258 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 259 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 260 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 261 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 262 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 263 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 264 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 265
 266 static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
 267     [PA_COMMAND_ERROR] = NULL,
 268     [PA_COMMAND_TIMEOUT] = NULL,
 269     [PA_COMMAND_REPLY] = NULL,
 270     [PA_COMMAND_CREATE_PLAYBACK_STREAM] = command_create_playback_stream,
 271     [PA_COMMAND_DELETE_PLAYBACK_STREAM] = command_delete_stream,
 272     [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = command_drain_playback_stream,
 273     [PA_COMMAND_CREATE_RECORD_STREAM] = command_create_record_stream,
 274     [PA_COMMAND_DELETE_RECORD_STREAM] = command_delete_stream,
 275     [PA_COMMAND_AUTH] = command_auth,
 276     [PA_COMMAND_REQUEST] = NULL,
 277     [PA_COMMAND_EXIT] = command_exit,
 278     [PA_COMMAND_SET_CLIENT_NAME] = command_set_client_name,
 279     [PA_COMMAND_LOOKUP_SINK] = command_lookup,
 280     [PA_COMMAND_LOOKUP_SOURCE] = command_lookup,
 281     [PA_COMMAND_STAT] = command_stat,
 282     [PA_COMMAND_GET_PLAYBACK_LATENCY] = command_get_playback_latency,
 283     [PA_COMMAND_GET_RECORD_LATENCY] = command_get_record_latency,
 284     [PA_COMMAND_CREATE_UPLOAD_STREAM] = command_create_upload_stream,
 285     [PA_COMMAND_DELETE_UPLOAD_STREAM] = command_delete_stream,
 286     [PA_COMMAND_FINISH_UPLOAD_STREAM] = command_finish_upload_stream,
 287     [PA_COMMAND_PLAY_SAMPLE] = command_play_sample,
 288     [PA_COMMAND_REMOVE_SAMPLE] = command_remove_sample,
 289     [PA_COMMAND_GET_SINK_INFO] = command_get_info,
 290     [PA_COMMAND_GET_SOURCE_INFO] = command_get_info,
 291     [PA_COMMAND_GET_CLIENT_INFO] = command_get_info,
 292     [PA_COMMAND_GET_MODULE_INFO] = command_get_info,
 293     [PA_COMMAND_GET_SINK_INPUT_INFO] = command_get_info,
 294     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = command_get_info,
 295     [PA_COMMAND_GET_SAMPLE_INFO] = command_get_info,
 296     [PA_COMMAND_GET_SINK_INFO_LIST] = command_get_info_list,
 297     [PA_COMMAND_GET_SOURCE_INFO_LIST] = command_get_info_list,
 298     [PA_COMMAND_GET_MODULE_INFO_LIST] = command_get_info_list,
 299     [PA_COMMAND_GET_CLIENT_INFO_LIST] = command_get_info_list,
 300     [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = command_get_info_list,
 301     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = command_get_info_list,
 302     [PA_COMMAND_GET_SAMPLE_INFO_LIST] = command_get_info_list,
 303     [PA_COMMAND_GET_SERVER_INFO] = command_get_server_info,
 304     [PA_COMMAND_SUBSCRIBE] = command_subscribe,
 305
 306     [PA_COMMAND_SET_SINK_VOLUME] = command_set_volume,
 307     [PA_COMMAND_SET_SINK_INPUT_VOLUME] = command_set_volume,
 308     [PA_COMMAND_SET_SOURCE_VOLUME] = command_set_volume,
 309
 310     [PA_COMMAND_SET_SINK_MUTE] = command_set_mute,
 311     [PA_COMMAND_SET_SINK_INPUT_MUTE] = command_set_mute,
 312     [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute,
 313
 314     [PA_COMMAND_SUSPEND_SINK] = command_suspend,
 315     [PA_COMMAND_SUSPEND_SOURCE] = command_suspend,
 316
 317     [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream,
 318     [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 319     [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 320     [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 321
 322     [PA_COMMAND_CORK_RECORD_STREAM] = command_cork_record_stream,
 323     [PA_COMMAND_FLUSH_RECORD_STREAM] = command_flush_record_stream,
 324
 325     [PA_COMMAND_SET_DEFAULT_SINK] = command_set_default_sink_or_source,
 326     [PA_COMMAND_SET_DEFAULT_SOURCE] = command_set_default_sink_or_source,
 327     [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = command_set_stream_name,
 328     [PA_COMMAND_SET_RECORD_STREAM_NAME] = command_set_stream_name,
 329     [PA_COMMAND_KILL_CLIENT] = command_kill,
 330     [PA_COMMAND_KILL_SINK_INPUT] = command_kill,
 331     [PA_COMMAND_KILL_SOURCE_OUTPUT] = command_kill,
 332     [PA_COMMAND_LOAD_MODULE] = command_load_module,
 333     [PA_COMMAND_UNLOAD_MODULE] = command_unload_module,
 334     [PA_COMMAND_GET_AUTOLOAD_INFO] = command_get_autoload_info,
 335     [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = command_get_autoload_info_list,
 336     [PA_COMMAND_ADD_AUTOLOAD] = command_add_autoload,
 337     [PA_COMMAND_REMOVE_AUTOLOAD] = command_remove_autoload,
 338
 339     [PA_COMMAND_MOVE_SINK_INPUT] = command_move_stream,
 340     [PA_COMMAND_MOVE_SOURCE_OUTPUT] = command_move_stream,
 341
 342     [PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 343     [PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 344
 345     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 346     [PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 347
 348     [PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST] = command_update_proplist,
 349     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST] = command_update_proplist,
 350     [PA_COMMAND_UPDATE_CLIENT_PROPLIST] = command_update_proplist,
 351
 352     [PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST] = command_remove_proplist,
 353     [PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST] = command_remove_proplist,
 354     [PA_COMMAND_REMOVE_CLIENT_PROPLIST] = command_remove_proplist,
 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(record_stream *s, pa_bool_t adjust_latency, uint32_t *maxlength, uint32_t *fragsize) {
 474     pa_assert(s);
 475     pa_assert(maxlength);
 476     pa_assert(fragsize);
 477
 478     if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 479         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 480     if (*maxlength <= 0)
 481         *maxlength = pa_frame_size(&s->source_output->sample_spec);
 482
 483     if (*fragsize == (uint32_t) -1)
 484         *fragsize = pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*PA_USEC_PER_MSEC, &s->source_output->sample_spec);
 485     if (*fragsize <= 0)
 486         *fragsize = pa_frame_size(&s->source_output->sample_spec);
 487
 488     if (adjust_latency) {
 489         pa_usec_t fragsize_usec;
 490
 491         /* So, the user asked us to adjust the latency according to
 492          * what the source can provide. Half the latency will be
 493          * spent on the hw buffer, half of it in the async buffer
 494          * queue we maintain for each client. */
 495
 496         fragsize_usec = pa_bytes_to_usec(*fragsize, &s->source_output->sample_spec);
 497
 498         s->source_latency = pa_source_output_set_requested_latency(s->source_output, fragsize_usec/2);
 499
 500         if (fragsize_usec >= s->source_latency*2)
 501             fragsize_usec -= s->source_latency;
 502         else
 503             fragsize_usec = s->source_latency;
 504
 505         *fragsize = pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec);
 506     } else
 507         s->source_latency = 0;
 508 }
 509
 510 static void fix_record_buffer_attr_post(record_stream *s, uint32_t *maxlength, uint32_t *fragsize) {
 511     size_t base;
 512
 513     pa_assert(s);
 514     pa_assert(maxlength);
 515     pa_assert(fragsize);
 516
 517     *maxlength = pa_memblockq_get_maxlength(s->memblockq);
 518
 519     base = pa_frame_size(&s->source_output->sample_spec);
 520
 521     s->fragment_size = (*fragsize/base)*base;
 522     if (s->fragment_size <= 0)
 523         s->fragment_size = base;
 524
 525     if (s->fragment_size > *maxlength)
 526         s->fragment_size = *maxlength;
 527
 528     *fragsize = s->fragment_size;
 529 }
 530
 531 static record_stream* record_stream_new(
 532         pa_native_connection *c,
 533         pa_source *source,
 534         pa_sample_spec *ss,
 535         pa_channel_map *map,
 536         pa_bool_t peak_detect,
 537         uint32_t *maxlength,
 538         uint32_t *fragsize,
 539         pa_source_output_flags_t flags,
 540         pa_proplist *p,
 541         pa_bool_t adjust_latency,
 542         pa_sink_input *direct_on_input) {
 543
 544     record_stream *s;
 545     pa_source_output *source_output;
 546     size_t base;
 547     pa_source_output_new_data data;
 548
 549     pa_assert(c);
 550     pa_assert(ss);
 551     pa_assert(maxlength);
 552     pa_assert(p);
 553
 554     pa_source_output_new_data_init(&data);
 555
 556     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
 557     pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
 558     data.driver = __FILE__;
 559     data.module = c->options->module;
 560     data.client = c->client;
 561     data.source = source;
 562     data.direct_on_input = direct_on_input;
 563     pa_source_output_new_data_set_sample_spec(&data, ss);
 564     pa_source_output_new_data_set_channel_map(&data, map);
 565     if (peak_detect)
 566         data.resample_method = PA_RESAMPLER_PEAKS;
 567
 568     source_output = pa_source_output_new(c->protocol->core, &data, flags);
 569
 570     pa_source_output_new_data_done(&data);
 571
 572     if (!source_output)
 573         return NULL;
 574
 575     s = pa_msgobject_new(record_stream);
 576     s->parent.parent.free = record_stream_free;
 577     s->parent.process_msg = record_stream_process_msg;
 578     s->connection = c;
 579     s->source_output = source_output;
 580
 581     s->source_output->push = source_output_push_cb;
 582     s->source_output->kill = source_output_kill_cb;
 583     s->source_output->get_latency = source_output_get_latency_cb;
 584     s->source_output->moved = source_output_moved_cb;
 585     s->source_output->suspend = source_output_suspend_cb;
 586     s->source_output->userdata = s;
 587
 588     fix_record_buffer_attr_pre(s, adjust_latency, maxlength, fragsize);
 589
 590     s->memblockq = pa_memblockq_new(
 591             0,
 592             *maxlength,
 593             0,
 594             base = pa_frame_size(&source_output->sample_spec),
 595             1,
 596             0,
 597             0,
 598             NULL);
 599
 600     fix_record_buffer_attr_post(s, maxlength, fragsize);
 601
 602     *ss = s->source_output->sample_spec;
 603     *map = s->source_output->channel_map;
 604
 605     pa_idxset_put(c->record_streams, s, &s->index);
 606
 607     pa_log_info("Final latency %0.2f ms = %0.2f ms + %0.2f ms",
 608                 ((double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) + (double) s->source_latency) / PA_USEC_PER_MSEC,
 609                 (double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) / PA_USEC_PER_MSEC,
 610                 (double) s->source_latency / PA_USEC_PER_MSEC);
 611
 612     pa_source_output_put(s->source_output);
 613     return s;
 614 }
 615
 616 static void record_stream_send_killed(record_stream *r) {
 617     pa_tagstruct *t;
 618     record_stream_assert_ref(r);
 619
 620     t = pa_tagstruct_new(NULL, 0);
 621     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED);
 622     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 623     pa_tagstruct_putu32(t, r->index);
 624     pa_pstream_send_tagstruct(r->connection->pstream, t);
 625 }
 626
 627 static void playback_stream_unlink(playback_stream *s) {
 628     pa_assert(s);
 629
 630     if (!s->connection)
 631         return;
 632
 633     if (s->sink_input) {
 634         pa_sink_input_unlink(s->sink_input);
 635         pa_sink_input_unref(s->sink_input);
 636         s->sink_input = NULL;
 637     }
 638
 639     if (s->drain_request)
 640         pa_pstream_send_error(s->connection->pstream, s->drain_tag, PA_ERR_NOENTITY);
 641
 642     pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s);
 643     s->connection = NULL;
 644     playback_stream_unref(s);
 645 }
 646
 647 static void playback_stream_free(pa_object* o) {
 648     playback_stream *s = PLAYBACK_STREAM(o);
 649     pa_assert(s);
 650
 651     playback_stream_unlink(s);
 652
 653     pa_memblockq_free(s->memblockq);
 654     pa_xfree(s);
 655 }
 656
 657 static int playback_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
 658     playback_stream *s = PLAYBACK_STREAM(o);
 659     playback_stream_assert_ref(s);
 660
 661     if (!s->connection)
 662         return -1;
 663
 664     switch (code) {
 665         case PLAYBACK_STREAM_MESSAGE_REQUEST_DATA: {
 666             pa_tagstruct *t;
 667             uint32_t l = 0;
 668
 669             for (;;) {
 670                 if ((l = pa_atomic_load(&s->missing)) <= 0)
 671                     break;
 672
 673                 if (pa_atomic_cmpxchg(&s->missing, l, 0))
 674                     break;
 675             }
 676
 677             if (l <= 0)
 678                 break;
 679
 680             t = pa_tagstruct_new(NULL, 0);
 681             pa_tagstruct_putu32(t, PA_COMMAND_REQUEST);
 682             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 683             pa_tagstruct_putu32(t, s->index);
 684             pa_tagstruct_putu32(t, l);
 685             pa_pstream_send_tagstruct(s->connection->pstream, t);
 686
 687 /*             pa_log("Requesting %lu bytes", (unsigned long) l); */
 688             break;
 689         }
 690
 691         case PLAYBACK_STREAM_MESSAGE_UNDERFLOW: {
 692             pa_tagstruct *t;
 693
 694             /* Report that we're empty */
 695             t = pa_tagstruct_new(NULL, 0);
 696             pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW);
 697             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 698             pa_tagstruct_putu32(t, s->index);
 699             pa_pstream_send_tagstruct(s->connection->pstream, t);
 700             break;
 701         }
 702
 703         case PLAYBACK_STREAM_MESSAGE_OVERFLOW: {
 704             pa_tagstruct *t;
 705
 706             /* Notify the user we're overflowed*/
 707             t = pa_tagstruct_new(NULL, 0);
 708             pa_tagstruct_putu32(t, PA_COMMAND_OVERFLOW);
 709             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 710             pa_tagstruct_putu32(t, s->index);
 711             pa_pstream_send_tagstruct(s->connection->pstream, t);
 712             break;
 713         }
 714
 715         case PLAYBACK_STREAM_MESSAGE_STARTED:
 716
 717             if (s->connection->version >= 13) {
 718                 pa_tagstruct *t;
 719
 720                 /* Notify the user we're overflowed*/
 721                 t = pa_tagstruct_new(NULL, 0);
 722                 pa_tagstruct_putu32(t, PA_COMMAND_STARTED);
 723                 pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 724                 pa_tagstruct_putu32(t, s->index);
 725                 pa_pstream_send_tagstruct(s->connection->pstream, t);
 726             }
 727
 728             break;
 729
 730         case PLAYBACK_STREAM_MESSAGE_DRAIN_ACK:
 731             pa_pstream_send_simple_ack(s->connection->pstream, PA_PTR_TO_UINT(userdata));
 732             break;
 733     }
 734
 735     return 0;
 736 }
 737
 738 static void fix_playback_buffer_attr_pre(playback_stream *s, pa_bool_t adjust_latency, uint32_t *maxlength, uint32_t *tlength, uint32_t* prebuf, uint32_t* minreq) {
 739     size_t frame_size;
 740     pa_usec_t tlength_usec, minreq_usec, sink_usec;
 741
 742     pa_assert(s);
 743     pa_assert(maxlength);
 744     pa_assert(tlength);
 745     pa_assert(prebuf);
 746     pa_assert(minreq);
 747
 748     frame_size = pa_frame_size(&s->sink_input->sample_spec);
 749
 750     if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 751         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 752     if (*maxlength <= 0)
 753         *maxlength = frame_size;
 754
 755     if (*tlength == (uint32_t) -1)
 756         *tlength = pa_usec_to_bytes(DEFAULT_TLENGTH_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec);
 757     if (*tlength <= 0)
 758         *tlength = frame_size;
 759
 760     if (*minreq == (uint32_t) -1)
 761         *minreq = pa_usec_to_bytes(DEFAULT_PROCESS_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec);
 762     if (*minreq <= 0)
 763         *minreq = frame_size;
 764
 765     if (*tlength < *minreq+frame_size)
 766         *tlength = *minreq+frame_size;
 767
 768     tlength_usec = pa_bytes_to_usec(*tlength, &s->sink_input->sample_spec);
 769     minreq_usec = pa_bytes_to_usec(*minreq, &s->sink_input->sample_spec);
 770
 771     pa_log_info("Requested tlength=%0.2f ms, minreq=%0.2f ms",
 772                 (double) tlength_usec / PA_USEC_PER_MSEC,
 773                 (double) minreq_usec / PA_USEC_PER_MSEC);
 774
 775     if (adjust_latency) {
 776
 777         /* So, the user asked us to adjust the latency of the stream
 778          * buffer according to the what the sink can provide. The
 779          * tlength passed in shall be the overall latency. Roughly
 780          * half the latency will be spent on the hw buffer, the other
 781          * half of it in the async buffer queue we maintain for each
 782          * client. In between we'll have a safety space of size
 783          * 2*minreq. Why the 2*minreq? When the hw buffer is completey
 784          * empty and needs to be filled, then our buffer must have
 785          * enough data to fulfill this request immediatly and thus
 786          * have at least the same tlength as the size of the hw
 787          * buffer. It additionally needs space for 2 times minreq
 788          * because if the buffer ran empty and a partial fillup
 789          * happens immediately on the next iteration we need to be
 790          * able to fulfill it and give the application also minreq
 791          * time to fill it up again for the next request Makes 2 times
 792          * minreq in plus.. */
 793
 794         if (tlength_usec > minreq_usec*2)
 795             sink_usec = (tlength_usec - minreq_usec*2)/2;
 796         else
 797             sink_usec = 0;
 798
 799     } else {
 800
 801         /* Ok, the user didn't ask us to adjust the latency, but we
 802          * still need to make sure that the parameters from the user
 803          * do make sense. */
 804
 805         if (tlength_usec > minreq_usec*2)
 806             sink_usec = (tlength_usec - minreq_usec*2);
 807         else
 808             sink_usec = 0;
 809     }
 810
 811     s->sink_latency = pa_sink_input_set_requested_latency(s->sink_input, sink_usec);
 812
 813     if (adjust_latency) {
 814         /* Ok, we didn't necessarily get what we were asking for, so
 815          * let's subtract from what we asked for for the remaining
 816          * buffer space */
 817
 818         if (tlength_usec >= s->sink_latency)
 819             tlength_usec -= s->sink_latency;
 820     }
 821
 822     /* FIXME: This is actually larger than necessary, since not all of
 823      * the sink latency is actually rewritable. */
 824     if (tlength_usec < s->sink_latency + 2*minreq_usec)
 825         tlength_usec = s->sink_latency + 2*minreq_usec;
 826
 827     *tlength = pa_usec_to_bytes(tlength_usec, &s->sink_input->sample_spec);
 828     *minreq = pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec);
 829
 830     if (*minreq <= 0) {
 831         *minreq += frame_size;
 832         *tlength += frame_size*2;
 833     }
 834
 835     if (*tlength <= *minreq)
 836         *tlength =  *minreq*2 + frame_size;
 837
 838     if (*prebuf == (uint32_t) -1 || *prebuf > *tlength)
 839         *prebuf = *tlength;
 840 }
 841
 842 static void fix_playback_buffer_attr_post(playback_stream *s, uint32_t *maxlength, uint32_t *tlength, uint32_t* prebuf, uint32_t* minreq) {
 843     pa_assert(s);
 844     pa_assert(maxlength);
 845     pa_assert(tlength);
 846     pa_assert(prebuf);
 847     pa_assert(minreq);
 848
 849     *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
 850     *tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq);
 851     *prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq);
 852     *minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq);
 853
 854     s->minreq = *minreq;
 855 }
 856
 857 static playback_stream* playback_stream_new(
 858         pa_native_connection *c,
 859         pa_sink *sink,
 860         pa_sample_spec *ss,
 861         pa_channel_map *map,
 862         uint32_t *maxlength,
 863         uint32_t *tlength,
 864         uint32_t *prebuf,
 865         uint32_t *minreq,
 866         pa_cvolume *volume,
 867         pa_bool_t muted,
 868         uint32_t syncid,
 869         uint32_t *missing,
 870         pa_sink_input_flags_t flags,
 871         pa_proplist *p,
 872         pa_bool_t adjust_latency) {
 873
 874     playback_stream *s, *ssync;
 875     pa_sink_input *sink_input;
 876     pa_memchunk silence;
 877     uint32_t idx;
 878     int64_t start_index;
 879     pa_sink_input_new_data data;
 880
 881     pa_assert(c);
 882     pa_assert(ss);
 883     pa_assert(maxlength);
 884     pa_assert(tlength);
 885     pa_assert(prebuf);
 886     pa_assert(minreq);
 887     pa_assert(volume);
 888     pa_assert(missing);
 889     pa_assert(p);
 890
 891     /* Find syncid group */
 892     for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) {
 893
 894         if (!playback_stream_isinstance(ssync))
 895             continue;
 896
 897         if (ssync->syncid == syncid)
 898             break;
 899     }
 900
 901     /* Synced streams must connect to the same sink */
 902     if (ssync) {
 903
 904         if (!sink)
 905             sink = ssync->sink_input->sink;
 906         else if (sink != ssync->sink_input->sink)
 907             return NULL;
 908     }
 909
 910     pa_sink_input_new_data_init(&data);
 911
 912     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
 913     pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
 914     data.driver = __FILE__;
 915     data.module = c->options->module;
 916     data.client = c->client;
 917     data.sink = sink;
 918     pa_sink_input_new_data_set_sample_spec(&data, ss);
 919     pa_sink_input_new_data_set_channel_map(&data, map);
 920     pa_sink_input_new_data_set_volume(&data, volume);
 921     pa_sink_input_new_data_set_muted(&data, muted);
 922     data.sync_base = ssync ? ssync->sink_input : NULL;
 923
 924     sink_input = pa_sink_input_new(c->protocol->core, &data, flags);
 925
 926     pa_sink_input_new_data_done(&data);
 927
 928     if (!sink_input)
 929         return NULL;
 930
 931     s = pa_msgobject_new(playback_stream);
 932     s->parent.parent.parent.free = playback_stream_free;
 933     s->parent.parent.process_msg = playback_stream_process_msg;
 934     s->connection = c;
 935     s->syncid = syncid;
 936     s->sink_input = sink_input;
 937     s->is_underrun = TRUE;
 938     s->drain_request = FALSE;
 939     pa_atomic_store(&s->missing, 0);
 940
 941     s->sink_input->parent.process_msg = sink_input_process_msg;
 942     s->sink_input->pop = sink_input_pop_cb;
 943     s->sink_input->process_rewind = sink_input_process_rewind_cb;
 944     s->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
 945     s->sink_input->update_max_request = sink_input_update_max_request_cb;
 946     s->sink_input->kill = sink_input_kill_cb;
 947     s->sink_input->moved = sink_input_moved_cb;
 948     s->sink_input->suspend = sink_input_suspend_cb;
 949     s->sink_input->userdata = s;
 950
 951     start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 0;
 952
 953     fix_playback_buffer_attr_pre(s, adjust_latency, maxlength, tlength, prebuf, minreq);
 954     pa_sink_input_get_silence(sink_input, &silence);
 955
 956     s->memblockq = pa_memblockq_new(
 957             start_index,
 958             *maxlength,
 959             *tlength,
 960             pa_frame_size(&sink_input->sample_spec),
 961             *prebuf,
 962             *minreq,
 963             0,
 964             &silence);
 965
 966     pa_memblock_unref(silence.memblock);
 967     fix_playback_buffer_attr_post(s, maxlength, tlength, prebuf, minreq);
 968
 969     *missing = (uint32_t) pa_memblockq_pop_missing(s->memblockq);
 970
 971     *ss = s->sink_input->sample_spec;
 972     *map = s->sink_input->channel_map;
 973
 974     pa_idxset_put(c->output_streams, s, &s->index);
 975
 976     pa_log_info("Final latency %0.2f ms = %0.2f ms + 2*%0.2f ms + %0.2f ms",
 977                 ((double) pa_bytes_to_usec(*tlength, &sink_input->sample_spec) + (double) s->sink_latency) / PA_USEC_PER_MSEC,
 978                 (double) pa_bytes_to_usec(*tlength-*minreq*2, &sink_input->sample_spec) / PA_USEC_PER_MSEC,
 979                 (double) pa_bytes_to_usec(*minreq, &sink_input->sample_spec) / PA_USEC_PER_MSEC,
 980                 (double) s->sink_latency / PA_USEC_PER_MSEC);
 981
 982     pa_sink_input_put(s->sink_input);
 983     return s;
 984 }
 985
 986
 987 /* Called from thread context */
 988 static void playback_stream_request_bytes(playback_stream *s) {
 989     size_t m, previous_missing;
 990
 991     playback_stream_assert_ref(s);
 992
 993     m = pa_memblockq_pop_missing(s->memblockq);
 994
 995     if (m <= 0)
 996         return;
 997
 998 /*     pa_log("request_bytes(%lu)", (unsigned long) m); */
 999
1000     previous_missing = pa_atomic_add(&s->missing, m);
1001
1002     if (pa_memblockq_prebuf_active(s->memblockq) ||
1003         (previous_missing < s->minreq && previous_missing+m >= s->minreq))
1004         pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL);
1005 }
1006
1007
1008 static void playback_stream_send_killed(playback_stream *p) {
1009     pa_tagstruct *t;
1010     playback_stream_assert_ref(p);
1011
1012     t = pa_tagstruct_new(NULL, 0);
1013     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED);
1014     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1015     pa_tagstruct_putu32(t, p->index);
1016     pa_pstream_send_tagstruct(p->connection->pstream, t);
1017 }
1018
1019 static int native_connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
1020     pa_native_connection *c = PA_NATIVE_CONNECTION(o);
1021     pa_native_connection_assert_ref(c);
1022
1023     if (!c->protocol)
1024         return -1;
1025
1026     switch (code) {
1027
1028         case CONNECTION_MESSAGE_REVOKE:
1029             pa_pstream_send_revoke(c->pstream, PA_PTR_TO_UINT(userdata));
1030             break;
1031
1032         case CONNECTION_MESSAGE_RELEASE:
1033             pa_pstream_send_release(c->pstream, PA_PTR_TO_UINT(userdata));
1034             break;
1035     }
1036
1037     return 0;
1038 }
1039
1040 static void native_connection_unlink(pa_native_connection *c) {
1041     record_stream *r;
1042     output_stream *o;
1043
1044     pa_assert(c);
1045
1046     if (!c->protocol)
1047         return;
1048
1049     pa_hook_fire(&c->protocol->hooks[PA_NATIVE_HOOK_CONNECTION_UNLINK], c);
1050
1051     if (c->options)
1052         pa_native_options_unref(c->options);
1053
1054     while ((r = pa_idxset_first(c->record_streams, NULL)))
1055         record_stream_unlink(r);
1056
1057     while ((o = pa_idxset_first(c->output_streams, NULL)))
1058         if (playback_stream_isinstance(o))
1059             playback_stream_unlink(PLAYBACK_STREAM(o));
1060         else
1061             upload_stream_unlink(UPLOAD_STREAM(o));
1062
1063     if (c->subscription)
1064         pa_subscription_free(c->subscription);
1065
1066     if (c->pstream)
1067         pa_pstream_unlink(c->pstream);
1068
1069     if (c->auth_timeout_event) {
1070         c->protocol->core->mainloop->time_free(c->auth_timeout_event);
1071         c->auth_timeout_event = NULL;
1072     }
1073
1074     pa_assert_se(pa_idxset_remove_by_data(c->protocol->connections, c, NULL) == c);
1075     c->protocol = NULL;
1076     pa_native_connection_unref(c);
1077 }
1078
1079 static void native_connection_free(pa_object *o) {
1080     pa_native_connection *c = PA_NATIVE_CONNECTION(o);
1081
1082     pa_assert(c);
1083
1084     native_connection_unlink(c);
1085
1086     pa_idxset_free(c->record_streams, NULL, NULL);
1087     pa_idxset_free(c->output_streams, NULL, NULL);
1088
1089     pa_pdispatch_unref(c->pdispatch);
1090     pa_pstream_unref(c->pstream);
1091     pa_client_free(c->client);
1092
1093     pa_xfree(c);
1094 }
1095
1096 static void native_connection_send_memblock(pa_native_connection *c) {
1097     uint32_t start;
1098     record_stream *r;
1099
1100     start = PA_IDXSET_INVALID;
1101     for (;;) {
1102         pa_memchunk chunk;
1103
1104         if (!(r = RECORD_STREAM(pa_idxset_rrobin(c->record_streams, &c->rrobin_index))))
1105             return;
1106
1107         if (start == PA_IDXSET_INVALID)
1108             start = c->rrobin_index;
1109         else if (start == c->rrobin_index)
1110             return;
1111
1112         if (pa_memblockq_peek(r->memblockq,  &chunk) >= 0) {
1113             pa_memchunk schunk = chunk;
1114
1115             if (schunk.length > r->fragment_size)
1116                 schunk.length = r->fragment_size;
1117
1118             pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk);
1119
1120             pa_memblockq_drop(r->memblockq, schunk.length);
1121             pa_memblock_unref(schunk.memblock);
1122
1123             return;
1124         }
1125     }
1126 }
1127
1128 /*** sink input callbacks ***/
1129
1130 static void handle_seek(playback_stream *s, int64_t indexw) {
1131     playback_stream_assert_ref(s);
1132
1133 /*     pa_log("handle_seek: %llu -- %i", (unsigned long long) s->sink_input->thread_info.underrun_for, pa_memblockq_is_readable(s->memblockq)); */
1134
1135     if (s->sink_input->thread_info.underrun_for > 0) {
1136
1137 /*         pa_log("%lu vs. %lu", (unsigned long) pa_memblockq_get_length(s->memblockq), (unsigned long) pa_memblockq_get_prebuf(s->memblockq)); */
1138
1139         if (pa_memblockq_is_readable(s->memblockq)) {
1140
1141             /* We just ended an underrun, let's ask the sink
1142              * for a complete rewind rewrite */
1143
1144             pa_log_debug("Requesting rewind due to end of underrun.");
1145             pa_sink_input_request_rewind(s->sink_input,
1146                                          s->sink_input->thread_info.underrun_for == (size_t) -1 ? 0 : s->sink_input->thread_info.underrun_for,
1147                                          FALSE, TRUE);
1148         }
1149
1150     } else {
1151         int64_t indexr;
1152
1153         indexr = pa_memblockq_get_read_index(s->memblockq);
1154
1155         if (indexw < indexr) {
1156             /* OK, the sink already asked for this data, so
1157              * let's have it usk us again */
1158
1159             pa_log_debug("Requesting rewind due to rewrite.");
1160             pa_sink_input_request_rewind(s->sink_input, indexr - indexw, TRUE, FALSE);
1161         }
1162     }
1163
1164     playback_stream_request_bytes(s);
1165 }
1166
1167 /* Called from thread context */
1168 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1169     pa_sink_input *i = PA_SINK_INPUT(o);
1170     playback_stream *s;
1171
1172     pa_sink_input_assert_ref(i);
1173     s = PLAYBACK_STREAM(i->userdata);
1174     playback_stream_assert_ref(s);
1175
1176     switch (code) {
1177
1178         case SINK_INPUT_MESSAGE_SEEK: {
1179             int64_t windex;
1180
1181             windex = pa_memblockq_get_write_index(s->memblockq);
1182             pa_memblockq_seek(s->memblockq, offset, PA_PTR_TO_UINT(userdata));
1183
1184             handle_seek(s, windex);
1185             return 0;
1186         }
1187
1188         case SINK_INPUT_MESSAGE_POST_DATA: {
1189             int64_t windex;
1190
1191             pa_assert(chunk);
1192
1193             windex = pa_memblockq_get_write_index(s->memblockq);
1194
1195 /*             pa_log("sink input post: %lu %lli", (unsigned long) chunk->length, (long long) windex); */
1196
1197             if (pa_memblockq_push_align(s->memblockq, chunk) < 0) {
1198                 pa_log_warn("Failed to push data into queue");
1199                 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_OVERFLOW, NULL, 0, NULL, NULL);
1200                 pa_memblockq_seek(s->memblockq, chunk->length, PA_SEEK_RELATIVE);
1201             }
1202
1203             handle_seek(s, windex);
1204
1205 /*             pa_log("sink input post2: %lu", (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1206
1207             return 0;
1208         }
1209
1210         case SINK_INPUT_MESSAGE_DRAIN:
1211         case SINK_INPUT_MESSAGE_FLUSH:
1212         case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1213         case SINK_INPUT_MESSAGE_TRIGGER: {
1214
1215             int64_t windex;
1216             pa_sink_input *isync;
1217             void (*func)(pa_memblockq *bq);
1218
1219             switch  (code) {
1220                 case SINK_INPUT_MESSAGE_FLUSH:
1221                     func = pa_memblockq_flush_write;
1222                     break;
1223
1224                 case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1225                     func = pa_memblockq_prebuf_force;
1226                     break;
1227
1228                 case SINK_INPUT_MESSAGE_DRAIN:
1229                 case SINK_INPUT_MESSAGE_TRIGGER:
1230                     func = pa_memblockq_prebuf_disable;
1231                     break;
1232
1233                 default:
1234                     pa_assert_not_reached();
1235             }
1236
1237             windex = pa_memblockq_get_write_index(s->memblockq);
1238             func(s->memblockq);
1239             handle_seek(s, windex);
1240
1241             /* Do the same for all other members in the sync group */
1242             for (isync = i->sync_prev; isync; isync = isync->sync_prev) {
1243                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1244                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1245                 func(ssync->memblockq);
1246                 handle_seek(ssync, windex);
1247             }
1248
1249             for (isync = i->sync_next; isync; isync = isync->sync_next) {
1250                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1251                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1252                 func(ssync->memblockq);
1253                 handle_seek(ssync, windex);
1254             }
1255
1256             if (code == SINK_INPUT_MESSAGE_DRAIN) {
1257                 if (!pa_memblockq_is_readable(s->memblockq))
1258                     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_DRAIN_ACK, userdata, 0, NULL, NULL);
1259                 else {
1260                     s->drain_tag = PA_PTR_TO_UINT(userdata);
1261                     s->drain_request = TRUE;
1262                 }
1263             }
1264
1265             return 0;
1266         }
1267
1268         case SINK_INPUT_MESSAGE_UPDATE_LATENCY:
1269
1270             s->read_index = pa_memblockq_get_read_index(s->memblockq);
1271             s->write_index = pa_memblockq_get_write_index(s->memblockq);
1272             s->render_memblockq_length = pa_memblockq_get_length(s->sink_input->thread_info.render_memblockq);
1273             return 0;
1274
1275         case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1276             int64_t windex;
1277
1278             windex = pa_memblockq_get_write_index(s->memblockq);
1279
1280             pa_memblockq_prebuf_force(s->memblockq);
1281
1282             handle_seek(s, windex);
1283
1284             /* Fall through to the default handler */
1285             break;
1286         }
1287
1288         case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1289             pa_usec_t *r = userdata;
1290
1291             *r = pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &i->sample_spec);
1292
1293             /* Fall through, the default handler will add in the extra
1294              * latency added by the resampler */
1295             break;
1296         }
1297     }
1298
1299     return pa_sink_input_process_msg(o, code, userdata, offset, chunk);
1300 }
1301
1302 /* Called from thread context */
1303 static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
1304     playback_stream *s;
1305
1306     pa_sink_input_assert_ref(i);
1307     s = PLAYBACK_STREAM(i->userdata);
1308     playback_stream_assert_ref(s);
1309     pa_assert(chunk);
1310
1311 /*     pa_log("%s, pop(): %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1312
1313     if (pa_memblockq_is_readable(s->memblockq))
1314         s->is_underrun = FALSE;
1315     else {
1316 /*         pa_log("%s, UNDERRUN: %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */
1317
1318         if (s->drain_request && pa_sink_input_safe_to_remove(i)) {
1319             s->drain_request = FALSE;
1320             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);
1321         } else if (!s->is_underrun)
1322             pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, 0, NULL, NULL);
1323
1324         s->is_underrun = TRUE;
1325
1326         playback_stream_request_bytes(s);
1327     }
1328
1329     /* This call will not fail with prebuf=0, hence we check for
1330        underrun explicitly above */
1331     if (pa_memblockq_peek(s->memblockq, chunk) < 0)
1332         return -1;
1333
1334     chunk->length = PA_MIN(nbytes, chunk->length);
1335
1336     if (i->thread_info.underrun_for > 0)
1337         pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_STARTED, NULL, 0, NULL, NULL);
1338
1339     pa_memblockq_drop(s->memblockq, chunk->length);
1340     playback_stream_request_bytes(s);
1341
1342     return 0;
1343 }
1344
1345 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
1346     playback_stream *s;
1347
1348     pa_sink_input_assert_ref(i);
1349     s = PLAYBACK_STREAM(i->userdata);
1350     playback_stream_assert_ref(s);
1351
1352     /* If we are in an underrun, then we don't rewind */
1353     if (i->thread_info.underrun_for > 0)
1354         return;
1355
1356     pa_memblockq_rewind(s->memblockq, nbytes);
1357 }
1358
1359 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
1360     playback_stream *s;
1361
1362     pa_sink_input_assert_ref(i);
1363     s = PLAYBACK_STREAM(i->userdata);
1364     playback_stream_assert_ref(s);
1365
1366     pa_memblockq_set_maxrewind(s->memblockq, nbytes);
1367 }
1368
1369 static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) {
1370     playback_stream *s;
1371     size_t tlength;
1372
1373     pa_sink_input_assert_ref(i);
1374     s = PLAYBACK_STREAM(i->userdata);
1375     playback_stream_assert_ref(s);
1376
1377     tlength = nbytes+2*pa_memblockq_get_minreq(s->memblockq);
1378
1379     if (pa_memblockq_get_tlength(s->memblockq) < tlength)
1380         pa_memblockq_set_tlength(s->memblockq, tlength);
1381 }
1382
1383 /* Called from main context */
1384 static void sink_input_kill_cb(pa_sink_input *i) {
1385     playback_stream *s;
1386
1387     pa_sink_input_assert_ref(i);
1388     s = PLAYBACK_STREAM(i->userdata);
1389     playback_stream_assert_ref(s);
1390
1391     playback_stream_send_killed(s);
1392     playback_stream_unlink(s);
1393 }
1394
1395 /* Called from main context */
1396 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend) {
1397     playback_stream *s;
1398     pa_tagstruct *t;
1399
1400     pa_sink_input_assert_ref(i);
1401     s = PLAYBACK_STREAM(i->userdata);
1402     playback_stream_assert_ref(s);
1403
1404     if (s->connection->version < 12)
1405       return;
1406
1407     t = pa_tagstruct_new(NULL, 0);
1408     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_SUSPENDED);
1409     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1410     pa_tagstruct_putu32(t, s->index);
1411     pa_tagstruct_put_boolean(t, suspend);
1412     pa_pstream_send_tagstruct(s->connection->pstream, t);
1413 }
1414
1415 /* Called from main context */
1416 static void sink_input_moved_cb(pa_sink_input *i) {
1417     playback_stream *s;
1418     pa_tagstruct *t;
1419     uint32_t maxlength, tlength, prebuf, minreq;
1420
1421     pa_sink_input_assert_ref(i);
1422     s = PLAYBACK_STREAM(i->userdata);
1423     playback_stream_assert_ref(s);
1424
1425     maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
1426     tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq);
1427     prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq);
1428     minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq);
1429
1430     fix_playback_buffer_attr_pre(s, TRUE, &maxlength, &tlength, &prebuf, &minreq);
1431     pa_memblockq_set_maxlength(s->memblockq, maxlength);
1432     pa_memblockq_set_tlength(s->memblockq, tlength);
1433     pa_memblockq_set_prebuf(s->memblockq, prebuf);
1434     pa_memblockq_set_minreq(s->memblockq, minreq);
1435     fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
1436
1437     if (s->connection->version < 12)
1438       return;
1439
1440     t = pa_tagstruct_new(NULL, 0);
1441     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_MOVED);
1442     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1443     pa_tagstruct_putu32(t, s->index);
1444     pa_tagstruct_putu32(t, i->sink->index);
1445     pa_tagstruct_puts(t, i->sink->name);
1446     pa_tagstruct_put_boolean(t, pa_sink_get_state(i->sink) == PA_SINK_SUSPENDED);
1447
1448     if (s->connection->version >= 13) {
1449         pa_tagstruct_putu32(t, maxlength);
1450         pa_tagstruct_putu32(t, tlength);
1451         pa_tagstruct_putu32(t, prebuf);
1452         pa_tagstruct_putu32(t, minreq);
1453         pa_tagstruct_put_usec(t, s->sink_latency);
1454     }
1455
1456     pa_pstream_send_tagstruct(s->connection->pstream, t);
1457 }
1458
1459 /*** source_output callbacks ***/
1460
1461 /* Called from thread context */
1462 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
1463     record_stream *s;
1464
1465     pa_source_output_assert_ref(o);
1466     s = RECORD_STREAM(o->userdata);
1467     record_stream_assert_ref(s);
1468     pa_assert(chunk);
1469
1470     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), RECORD_STREAM_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
1471 }
1472
1473 static void source_output_kill_cb(pa_source_output *o) {
1474     record_stream *s;
1475
1476     pa_source_output_assert_ref(o);
1477     s = RECORD_STREAM(o->userdata);
1478     record_stream_assert_ref(s);
1479
1480     record_stream_send_killed(s);
1481     record_stream_unlink(s);
1482 }
1483
1484 static pa_usec_t source_output_get_latency_cb(pa_source_output *o) {
1485     record_stream *s;
1486
1487     pa_source_output_assert_ref(o);
1488     s = RECORD_STREAM(o->userdata);
1489     record_stream_assert_ref(s);
1490
1491     /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/
1492
1493     return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec);
1494 }
1495
1496 /* Called from main context */
1497 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend) {
1498     record_stream *s;
1499     pa_tagstruct *t;
1500
1501     pa_source_output_assert_ref(o);
1502     s = RECORD_STREAM(o->userdata);
1503     record_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_RECORD_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 source_output_moved_cb(pa_source_output *o) {
1518     record_stream *s;
1519     pa_tagstruct *t;
1520     uint32_t maxlength, fragsize;
1521
1522     pa_source_output_assert_ref(o);
1523     s = RECORD_STREAM(o->userdata);
1524     record_stream_assert_ref(s);
1525
1526     fragsize = (uint32_t) s->fragment_size;
1527     maxlength = (uint32_t) pa_memblockq_get_length(s->memblockq);
1528
1529     fix_record_buffer_attr_pre(s, TRUE, &maxlength, &fragsize);
1530     pa_memblockq_set_maxlength(s->memblockq, maxlength);
1531     fix_record_buffer_attr_post(s, &maxlength, &fragsize);
1532
1533     if (s->connection->version < 12)
1534       return;
1535
1536     t = pa_tagstruct_new(NULL, 0);
1537     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_MOVED);
1538     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1539     pa_tagstruct_putu32(t, s->index);
1540     pa_tagstruct_putu32(t, o->source->index);
1541     pa_tagstruct_puts(t, o->source->name);
1542     pa_tagstruct_put_boolean(t, pa_source_get_state(o->source) == PA_SOURCE_SUSPENDED);
1543
1544     if (s->connection->version >= 13) {
1545         pa_tagstruct_putu32(t, maxlength);
1546         pa_tagstruct_putu32(t, fragsize);
1547         pa_tagstruct_put_usec(t, s->source_latency);
1548     }
1549
1550     pa_pstream_send_tagstruct(s->connection->pstream, t);
1551 }
1552
1553 /*** pdispatch callbacks ***/
1554
1555 static void protocol_error(pa_native_connection *c) {
1556     pa_log("protocol error, kicking client");
1557     native_connection_unlink(c);
1558 }
1559
1560 #define CHECK_VALIDITY(pstream, expression, tag, error) do { \
1561 if (!(expression)) { \
1562     pa_pstream_send_error((pstream), (tag), (error)); \
1563     return; \
1564 } \
1565 } while(0);
1566
1567 static pa_tagstruct *reply_new(uint32_t tag) {
1568     pa_tagstruct *reply;
1569
1570     reply = pa_tagstruct_new(NULL, 0);
1571     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1572     pa_tagstruct_putu32(reply, tag);
1573     return reply;
1574 }
1575
1576 static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1577     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1578     playback_stream *s;
1579     uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid, missing;
1580     const char *name = NULL, *sink_name;
1581     pa_sample_spec ss;
1582     pa_channel_map map;
1583     pa_tagstruct *reply;
1584     pa_sink *sink = NULL;
1585     pa_cvolume volume;
1586     pa_bool_t
1587         corked = FALSE,
1588         no_remap = FALSE,
1589         no_remix = FALSE,
1590         fix_format = FALSE,
1591         fix_rate = FALSE,
1592         fix_channels = FALSE,
1593         no_move = FALSE,
1594         variable_rate = FALSE,
1595         muted = FALSE,
1596         adjust_latency = FALSE;
1597
1598     pa_sink_input_flags_t flags = 0;
1599     pa_proplist *p;
1600
1601     pa_native_connection_assert_ref(c);
1602     pa_assert(t);
1603
1604     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1605         pa_tagstruct_get(
1606                 t,
1607                 PA_TAG_SAMPLE_SPEC, &ss,
1608                 PA_TAG_CHANNEL_MAP, &map,
1609                 PA_TAG_U32, &sink_index,
1610                 PA_TAG_STRING, &sink_name,
1611                 PA_TAG_U32, &maxlength,
1612                 PA_TAG_BOOLEAN, &corked,
1613                 PA_TAG_U32, &tlength,
1614                 PA_TAG_U32, &prebuf,
1615                 PA_TAG_U32, &minreq,
1616                 PA_TAG_U32, &syncid,
1617                 PA_TAG_CVOLUME, &volume,
1618                 PA_TAG_INVALID) < 0) {
1619
1620         protocol_error(c);
1621         return;
1622     }
1623
1624     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1625     CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(sink_name)), tag, PA_ERR_INVALID);
1626     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1627     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1628     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
1629     CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID);
1630
1631     p = pa_proplist_new();
1632
1633     if (name)
1634         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1635
1636     if (c->version >= 12)  {
1637         /* Since 0.9.8 the user can ask for a couple of additional flags */
1638
1639         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1640             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1641             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1642             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1643             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1644             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1645             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1646
1647             protocol_error(c);
1648             pa_proplist_free(p);
1649             return;
1650         }
1651     }
1652
1653     if (c->version >= 13) {
1654
1655         if (pa_tagstruct_get_boolean(t, &muted) < 0 ||
1656             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1657             pa_tagstruct_get_proplist(t, p) < 0) {
1658             protocol_error(c);
1659             pa_proplist_free(p);
1660             return;
1661         }
1662     }
1663
1664     if (!pa_tagstruct_eof(t)) {
1665         protocol_error(c);
1666         pa_proplist_free(p);
1667         return;
1668     }
1669
1670     if (sink_index != PA_INVALID_INDEX) {
1671
1672         if (!(sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index))) {
1673             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1674             pa_proplist_free(p);
1675             return;
1676         }
1677
1678     } else if (sink_name) {
1679
1680         if (!(sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1))) {
1681             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1682             pa_proplist_free(p);
1683             return;
1684         }
1685     }
1686
1687     flags =
1688         (corked ?  PA_SINK_INPUT_START_CORKED : 0) |
1689         (no_remap ?  PA_SINK_INPUT_NO_REMAP : 0) |
1690         (no_remix ?  PA_SINK_INPUT_NO_REMIX : 0) |
1691         (fix_format ?  PA_SINK_INPUT_FIX_FORMAT : 0) |
1692         (fix_rate ?  PA_SINK_INPUT_FIX_RATE : 0) |
1693         (fix_channels ?  PA_SINK_INPUT_FIX_CHANNELS : 0) |
1694         (no_move ?  PA_SINK_INPUT_DONT_MOVE : 0) |
1695         (variable_rate ?  PA_SINK_INPUT_VARIABLE_RATE : 0);
1696
1697     s = playback_stream_new(c, sink, &ss, &map, &maxlength, &tlength, &prebuf, &minreq, &volume, muted, syncid, &missing, flags, p, adjust_latency);
1698     pa_proplist_free(p);
1699
1700     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
1701
1702     reply = reply_new(tag);
1703     pa_tagstruct_putu32(reply, s->index);
1704     pa_assert(s->sink_input);
1705     pa_tagstruct_putu32(reply, s->sink_input->index);
1706     pa_tagstruct_putu32(reply, missing);
1707
1708 /*     pa_log("initial request is %u", missing); */
1709
1710     if (c->version >= 9) {
1711         /* Since 0.9.0 we support sending the buffer metrics back to the client */
1712
1713         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1714         pa_tagstruct_putu32(reply, (uint32_t) tlength);
1715         pa_tagstruct_putu32(reply, (uint32_t) prebuf);
1716         pa_tagstruct_putu32(reply, (uint32_t) minreq);
1717     }
1718
1719     if (c->version >= 12) {
1720         /* Since 0.9.8 we support sending the chosen sample
1721          * spec/channel map/device/suspend status back to the
1722          * client */
1723
1724         pa_tagstruct_put_sample_spec(reply, &ss);
1725         pa_tagstruct_put_channel_map(reply, &map);
1726
1727         pa_tagstruct_putu32(reply, s->sink_input->sink->index);
1728         pa_tagstruct_puts(reply, s->sink_input->sink->name);
1729
1730         pa_tagstruct_put_boolean(reply, pa_sink_get_state(s->sink_input->sink) == PA_SINK_SUSPENDED);
1731     }
1732
1733     if (c->version >= 13)
1734         pa_tagstruct_put_usec(reply, s->sink_latency);
1735
1736     pa_pstream_send_tagstruct(c->pstream, reply);
1737 }
1738
1739 static void command_delete_stream(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1740     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1741     uint32_t channel;
1742
1743     pa_native_connection_assert_ref(c);
1744     pa_assert(t);
1745
1746     if (pa_tagstruct_getu32(t, &channel) < 0 ||
1747         !pa_tagstruct_eof(t)) {
1748         protocol_error(c);
1749         return;
1750     }
1751
1752     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1753
1754     switch (command) {
1755
1756         case PA_COMMAND_DELETE_PLAYBACK_STREAM: {
1757             playback_stream *s;
1758             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) {
1759                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1760                 return;
1761             }
1762
1763             playback_stream_unlink(s);
1764             break;
1765         }
1766
1767         case PA_COMMAND_DELETE_RECORD_STREAM: {
1768             record_stream *s;
1769             if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
1770                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1771                 return;
1772             }
1773
1774             record_stream_unlink(s);
1775             break;
1776         }
1777
1778         case PA_COMMAND_DELETE_UPLOAD_STREAM: {
1779             upload_stream *s;
1780
1781             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !upload_stream_isinstance(s)) {
1782                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1783                 return;
1784             }
1785
1786             upload_stream_unlink(s);
1787             break;
1788         }
1789
1790         default:
1791             pa_assert_not_reached();
1792     }
1793
1794     pa_pstream_send_simple_ack(c->pstream, tag);
1795 }
1796
1797 static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1798     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1799     record_stream *s;
1800     uint32_t maxlength, fragment_size;
1801     uint32_t source_index;
1802     const char *name = NULL, *source_name;
1803     pa_sample_spec ss;
1804     pa_channel_map map;
1805     pa_tagstruct *reply;
1806     pa_source *source = NULL;
1807     pa_bool_t
1808         corked = FALSE,
1809         no_remap = FALSE,
1810         no_remix = FALSE,
1811         fix_format = FALSE,
1812         fix_rate = FALSE,
1813         fix_channels = FALSE,
1814         no_move = FALSE,
1815         variable_rate = FALSE,
1816         adjust_latency = FALSE,
1817         peak_detect = FALSE;
1818     pa_source_output_flags_t flags = 0;
1819     pa_proplist *p;
1820     uint32_t direct_on_input_idx = PA_INVALID_INDEX;
1821     pa_sink_input *direct_on_input = NULL;
1822
1823     pa_native_connection_assert_ref(c);
1824     pa_assert(t);
1825
1826     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1827         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
1828         pa_tagstruct_get_channel_map(t, &map) < 0 ||
1829         pa_tagstruct_getu32(t, &source_index) < 0 ||
1830         pa_tagstruct_gets(t, &source_name) < 0 ||
1831         pa_tagstruct_getu32(t, &maxlength) < 0 ||
1832         pa_tagstruct_get_boolean(t, &corked) < 0 ||
1833         pa_tagstruct_getu32(t, &fragment_size) < 0) {
1834         protocol_error(c);
1835         return;
1836     }
1837
1838     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1839     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1840     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1841     CHECK_VALIDITY(c->pstream, source_index != PA_INVALID_INDEX || !source_name || (*source_name && pa_utf8_valid(source_name)), tag, PA_ERR_INVALID);
1842     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
1843
1844     p = pa_proplist_new();
1845
1846     if (name)
1847         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1848
1849     if (c->version >= 12)  {
1850         /* Since 0.9.8 the user can ask for a couple of additional flags */
1851
1852         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1853             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1854             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1855             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1856             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1857             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1858             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1859
1860             protocol_error(c);
1861             pa_proplist_free(p);
1862             return;
1863         }
1864     }
1865
1866     if (c->version >= 13) {
1867
1868         if (pa_tagstruct_get_boolean(t, &peak_detect) < 0 ||
1869             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1870             pa_tagstruct_get_proplist(t, p) < 0 ||
1871             pa_tagstruct_getu32(t, &direct_on_input_idx) < 0) {
1872             protocol_error(c);
1873             pa_proplist_free(p);
1874             return;
1875         }
1876     }
1877
1878     if (!pa_tagstruct_eof(t)) {
1879         protocol_error(c);
1880         pa_proplist_free(p);
1881         return;
1882     }
1883
1884     if (source_index != PA_INVALID_INDEX) {
1885
1886         if (!(source = pa_idxset_get_by_index(c->protocol->core->sources, source_index))) {
1887             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1888             pa_proplist_free(p);
1889             return;
1890         }
1891
1892     } else if (source_name) {
1893
1894         if (!(source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1))) {
1895             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1896             pa_proplist_free(p);
1897             return;
1898         }
1899     }
1900
1901     if (direct_on_input_idx != PA_INVALID_INDEX) {
1902
1903         if (!(direct_on_input = pa_idxset_get_by_index(c->protocol->core->sink_inputs, direct_on_input_idx))) {
1904             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1905             pa_proplist_free(p);
1906             return;
1907         }
1908     }
1909
1910     flags =
1911         (corked ?  PA_SOURCE_OUTPUT_START_CORKED : 0) |
1912         (no_remap ?  PA_SOURCE_OUTPUT_NO_REMAP : 0) |
1913         (no_remix ?  PA_SOURCE_OUTPUT_NO_REMIX : 0) |
1914         (fix_format ?  PA_SOURCE_OUTPUT_FIX_FORMAT : 0) |
1915         (fix_rate ?  PA_SOURCE_OUTPUT_FIX_RATE : 0) |
1916         (fix_channels ?  PA_SOURCE_OUTPUT_FIX_CHANNELS : 0) |
1917         (no_move ?  PA_SOURCE_OUTPUT_DONT_MOVE : 0) |
1918         (variable_rate ?  PA_SOURCE_OUTPUT_VARIABLE_RATE : 0);
1919
1920     s = record_stream_new(c, source, &ss, &map, peak_detect, &maxlength, &fragment_size, flags, p, adjust_latency, direct_on_input);
1921     pa_proplist_free(p);
1922
1923     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
1924
1925     reply = reply_new(tag);
1926     pa_tagstruct_putu32(reply, s->index);
1927     pa_assert(s->source_output);
1928     pa_tagstruct_putu32(reply, s->source_output->index);
1929
1930     if (c->version >= 9) {
1931         /* Since 0.9 we support sending the buffer metrics back to the client */
1932
1933         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1934         pa_tagstruct_putu32(reply, (uint32_t) fragment_size);
1935     }
1936
1937     if (c->version >= 12) {
1938         /* Since 0.9.8 we support sending the chosen sample
1939          * spec/channel map/device/suspend status back to the
1940          * client */
1941
1942         pa_tagstruct_put_sample_spec(reply, &ss);
1943         pa_tagstruct_put_channel_map(reply, &map);
1944
1945         pa_tagstruct_putu32(reply, s->source_output->source->index);
1946         pa_tagstruct_puts(reply, s->source_output->source->name);
1947
1948         pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_SUSPENDED);
1949     }
1950
1951     if (c->version >= 13)
1952         pa_tagstruct_put_usec(reply, s->source_latency);
1953
1954     pa_pstream_send_tagstruct(c->pstream, reply);
1955 }
1956
1957 static void command_exit(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1958     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1959
1960     pa_native_connection_assert_ref(c);
1961     pa_assert(t);
1962
1963     if (!pa_tagstruct_eof(t)) {
1964         protocol_error(c);
1965         return;
1966     }
1967
1968     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1969
1970     c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0);
1971     pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
1972 }
1973
1974 static void command_auth(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1975     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
1976     const void*cookie;
1977     pa_tagstruct *reply;
1978     pa_bool_t shm_on_remote, do_shm;
1979
1980     pa_native_connection_assert_ref(c);
1981     pa_assert(t);
1982
1983     if (pa_tagstruct_getu32(t, &c->version) < 0 ||
1984         pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
1985         !pa_tagstruct_eof(t)) {
1986         protocol_error(c);
1987         return;
1988     }
1989
1990     /* Minimum supported version */
1991     if (c->version < 8) {
1992         pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION);
1993         return;
1994     }
1995
1996     /* Starting with protocol version 13 the MSB of the version tag
1997        reflects if shm is available for this pa_native_connection or
1998        not. */
1999     if (c->version >= 13) {
2000         shm_on_remote = !!(c->version & 0x80000000U);
2001         c->version &= 0x7FFFFFFFU;
2002     }
2003
2004     pa_log_debug("Protocol version: remote %u, local %u", c->version, PA_PROTOCOL_VERSION);
2005
2006     pa_proplist_setf(c->client->proplist, "native-protocol.version", "%u", c->version);
2007
2008     if (!c->authorized) {
2009         pa_bool_t success = FALSE;
2010
2011 #ifdef HAVE_CREDS
2012         const pa_creds *creds;
2013
2014         if ((creds = pa_pdispatch_creds(pd))) {
2015             if (creds->uid == getuid())
2016                 success = TRUE;
2017             else if (c->options->auth_group) {
2018                 int r;
2019                 gid_t gid;
2020
2021                 if ((gid = pa_get_gid_of_group(c->options->auth_group)) == (gid_t) -1)
2022                     pa_log_warn("Failed to get GID of group '%s'", c->options->auth_group);
2023                 else if (gid == creds->gid)
2024                     success = TRUE;
2025
2026                 if (!success) {
2027                     if ((r = pa_uid_in_group(creds->uid, c->options->auth_group)) < 0)
2028                         pa_log_warn("Failed to check group membership.");
2029                     else if (r > 0)
2030                         success = TRUE;
2031                 }
2032             }
2033
2034             pa_log_info("Got credentials: uid=%lu gid=%lu success=%i",
2035                         (unsigned long) creds->uid,
2036                         (unsigned long) creds->gid,
2037                         (int) success);
2038         }
2039 #endif
2040
2041         if (!success && c->options->auth_cookie) {
2042             const uint8_t *ac;
2043
2044             if ((ac = pa_auth_cookie_read(c->options->auth_cookie, PA_NATIVE_COOKIE_LENGTH)))
2045                 if (memcmp(ac, cookie, PA_NATIVE_COOKIE_LENGTH) == 0)
2046                     success = TRUE;
2047         }
2048
2049         if (!success) {
2050             pa_log_warn("Denied access to client with invalid authorization data.");
2051             pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS);
2052             return;
2053         }
2054
2055         c->authorized = TRUE;
2056         if (c->auth_timeout_event) {
2057             c->protocol->core->mainloop->time_free(c->auth_timeout_event);
2058             c->auth_timeout_event = NULL;
2059         }
2060     }
2061
2062     /* Enable shared memory support if possible */
2063     do_shm =
2064         pa_mempool_is_shared(c->protocol->core->mempool) &&
2065         c->is_local;
2066
2067     pa_log_debug("SHM possible: %s", pa_yes_no(do_shm));
2068
2069     if (do_shm)
2070         if (c->version < 10 || (c->version >= 13 && !shm_on_remote))
2071             do_shm = FALSE;
2072
2073     if (do_shm) {
2074         /* Only enable SHM if both sides are owned by the same
2075          * user. This is a security measure because otherwise data
2076          * private to the user might leak. */
2077
2078         const pa_creds *creds;
2079         if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid)
2080             do_shm = FALSE;
2081     }
2082
2083     pa_log_debug("Negotiated SHM: %s", pa_yes_no(do_shm));
2084     pa_pstream_enable_shm(c->pstream, do_shm);
2085
2086     reply = reply_new(tag);
2087     pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION | (do_shm ? 0x80000000 : 0));
2088
2089 #ifdef HAVE_CREDS
2090 {
2091     /* SHM support is only enabled after both sides made sure they are the same user. */
2092
2093     pa_creds ucred;
2094
2095     ucred.uid = getuid();
2096     ucred.gid = getgid();
2097
2098     pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred);
2099 }
2100 #else
2101     pa_pstream_send_tagstruct(c->pstream, reply);
2102 #endif
2103 }
2104
2105 static void command_set_client_name(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2106     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2107     const char *name = NULL;
2108     pa_proplist *p;
2109     pa_tagstruct *reply;
2110
2111     pa_native_connection_assert_ref(c);
2112     pa_assert(t);
2113
2114     p = pa_proplist_new();
2115
2116     if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) ||
2117         (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2118         !pa_tagstruct_eof(t)) {
2119
2120         protocol_error(c);
2121         pa_proplist_free(p);
2122         return;
2123     }
2124
2125     if (name)
2126         if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) {
2127             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
2128             pa_proplist_free(p);
2129             return;
2130         }
2131
2132     pa_proplist_update(c->client->proplist, PA_UPDATE_REPLACE, p);
2133     pa_proplist_free(p);
2134
2135     pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
2136
2137     reply = reply_new(tag);
2138
2139     if (c->version >= 13)
2140         pa_tagstruct_putu32(reply, c->client->index);
2141
2142     pa_pstream_send_tagstruct(c->pstream, reply);
2143 }
2144
2145 static void command_lookup(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2146     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2147     const char *name;
2148     uint32_t idx = PA_IDXSET_INVALID;
2149
2150     pa_native_connection_assert_ref(c);
2151     pa_assert(t);
2152
2153     if (pa_tagstruct_gets(t, &name) < 0 ||
2154         !pa_tagstruct_eof(t)) {
2155         protocol_error(c);
2156         return;
2157     }
2158
2159     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2160     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2161
2162     if (command == PA_COMMAND_LOOKUP_SINK) {
2163         pa_sink *sink;
2164         if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1)))
2165             idx = sink->index;
2166     } else {
2167         pa_source *source;
2168         pa_assert(command == PA_COMMAND_LOOKUP_SOURCE);
2169         if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1)))
2170             idx = source->index;
2171     }
2172
2173     if (idx == PA_IDXSET_INVALID)
2174         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2175     else {
2176         pa_tagstruct *reply;
2177         reply = reply_new(tag);
2178         pa_tagstruct_putu32(reply, idx);
2179         pa_pstream_send_tagstruct(c->pstream, reply);
2180     }
2181 }
2182
2183 static void command_drain_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2184     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2185     uint32_t idx;
2186     playback_stream *s;
2187
2188     pa_native_connection_assert_ref(c);
2189     pa_assert(t);
2190
2191     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2192         !pa_tagstruct_eof(t)) {
2193         protocol_error(c);
2194         return;
2195     }
2196
2197     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2198     s = pa_idxset_get_by_index(c->output_streams, idx);
2199     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2200     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2201
2202     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);
2203 }
2204
2205 static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2206     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2207     pa_tagstruct *reply;
2208     const pa_mempool_stat *stat;
2209
2210     pa_native_connection_assert_ref(c);
2211     pa_assert(t);
2212
2213     if (!pa_tagstruct_eof(t)) {
2214         protocol_error(c);
2215         return;
2216     }
2217
2218     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2219
2220     stat = pa_mempool_get_stat(c->protocol->core->mempool);
2221
2222     reply = reply_new(tag);
2223     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated));
2224     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size));
2225     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated));
2226     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size));
2227     pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
2228     pa_pstream_send_tagstruct(c->pstream, reply);
2229 }
2230
2231 static void command_get_playback_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2232     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2233     pa_tagstruct *reply;
2234     playback_stream *s;
2235     struct timeval tv, now;
2236     uint32_t idx;
2237     pa_usec_t latency;
2238
2239     pa_native_connection_assert_ref(c);
2240     pa_assert(t);
2241
2242     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2243         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2244         !pa_tagstruct_eof(t)) {
2245         protocol_error(c);
2246         return;
2247     }
2248
2249     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2250     s = pa_idxset_get_by_index(c->output_streams, idx);
2251     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2252     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2253     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)
2254
2255     reply = reply_new(tag);
2256
2257     latency = pa_sink_get_latency(s->sink_input->sink);
2258     latency += pa_bytes_to_usec(s->render_memblockq_length, &s->sink_input->sample_spec);
2259
2260     pa_tagstruct_put_usec(reply, latency);
2261
2262     pa_tagstruct_put_usec(reply, 0);
2263     pa_tagstruct_put_boolean(reply, s->sink_input->thread_info.playing_for > 0);
2264     pa_tagstruct_put_timeval(reply, &tv);
2265     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2266     pa_tagstruct_puts64(reply, s->write_index);
2267     pa_tagstruct_puts64(reply, s->read_index);
2268
2269     if (c->version >= 13) {
2270         pa_tagstruct_putu64(reply, s->sink_input->thread_info.underrun_for);
2271         pa_tagstruct_putu64(reply, s->sink_input->thread_info.playing_for);
2272     }
2273
2274     pa_pstream_send_tagstruct(c->pstream, reply);
2275 }
2276
2277 static void command_get_record_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2278     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2279     pa_tagstruct *reply;
2280     record_stream *s;
2281     struct timeval tv, now;
2282     uint32_t idx;
2283
2284     pa_native_connection_assert_ref(c);
2285     pa_assert(t);
2286
2287     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2288         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2289         !pa_tagstruct_eof(t)) {
2290         protocol_error(c);
2291         return;
2292     }
2293
2294     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2295     s = pa_idxset_get_by_index(c->record_streams, idx);
2296     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2297
2298     reply = reply_new(tag);
2299     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
2300     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
2301     pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_RUNNING);
2302     pa_tagstruct_put_timeval(reply, &tv);
2303     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2304     pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
2305     pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
2306     pa_pstream_send_tagstruct(c->pstream, reply);
2307 }
2308
2309 static void command_create_upload_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2310     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2311     upload_stream *s;
2312     uint32_t length;
2313     const char *name = NULL;
2314     pa_sample_spec ss;
2315     pa_channel_map map;
2316     pa_tagstruct *reply;
2317     pa_proplist *p;
2318
2319     pa_native_connection_assert_ref(c);
2320     pa_assert(t);
2321
2322     if (pa_tagstruct_gets(t, &name) < 0 ||
2323         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
2324         pa_tagstruct_get_channel_map(t, &map) < 0 ||
2325         pa_tagstruct_getu32(t, &length) < 0) {
2326         protocol_error(c);
2327         return;
2328     }
2329
2330     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2331     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
2332     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
2333     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
2334     CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID);
2335     CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE);
2336
2337     p = pa_proplist_new();
2338
2339     if (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) {
2340         protocol_error(c);
2341         pa_proplist_free(p);
2342         return;
2343     }
2344
2345     if (c->version < 13)
2346         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2347     else if (!name)
2348         if (!(name = pa_proplist_gets(p, PA_PROP_EVENT_ID)))
2349             name = pa_proplist_gets(p, PA_PROP_MEDIA_NAME);
2350
2351     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2352
2353     s = upload_stream_new(c, &ss, &map, name, length, p);
2354     pa_proplist_free(p);
2355
2356     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
2357
2358     reply = reply_new(tag);
2359     pa_tagstruct_putu32(reply, s->index);
2360     pa_tagstruct_putu32(reply, length);
2361     pa_pstream_send_tagstruct(c->pstream, reply);
2362 }
2363
2364 static void command_finish_upload_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2365     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2366     uint32_t channel;
2367     upload_stream *s;
2368     uint32_t idx;
2369
2370     pa_native_connection_assert_ref(c);
2371     pa_assert(t);
2372
2373     if (pa_tagstruct_getu32(t, &channel) < 0 ||
2374         !pa_tagstruct_eof(t)) {
2375         protocol_error(c);
2376         return;
2377     }
2378
2379     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2380
2381     s = pa_idxset_get_by_index(c->output_streams, channel);
2382     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2383     CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2384
2385     if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, s->proplist, &idx) < 0)
2386         pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL);
2387     else
2388         pa_pstream_send_simple_ack(c->pstream, tag);
2389
2390     upload_stream_unlink(s);
2391 }
2392
2393 static void command_play_sample(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2394     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2395     uint32_t sink_index;
2396     pa_volume_t volume;
2397     pa_sink *sink;
2398     const char *name, *sink_name;
2399     uint32_t idx;
2400     pa_proplist *p;
2401     pa_tagstruct *reply;
2402
2403     pa_native_connection_assert_ref(c);
2404     pa_assert(t);
2405
2406     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2407
2408     if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
2409         pa_tagstruct_gets(t, &sink_name) < 0 ||
2410         pa_tagstruct_getu32(t, &volume) < 0 ||
2411         pa_tagstruct_gets(t, &name) < 0) {
2412         protocol_error(c);
2413         return;
2414     }
2415
2416     CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2417     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2418
2419     if (sink_index != PA_INVALID_INDEX)
2420         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
2421     else
2422         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
2423
2424     CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
2425
2426     p = pa_proplist_new();
2427
2428     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2429         !pa_tagstruct_eof(t)) {
2430         protocol_error(c);
2431         pa_proplist_free(p);
2432         return;
2433     }
2434
2435     pa_proplist_update(p, PA_UPDATE_MERGE, c->client->proplist);
2436
2437     if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) {
2438         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2439         pa_proplist_free(p);
2440         return;
2441     }
2442
2443     pa_proplist_free(p);
2444
2445     reply = reply_new(tag);
2446
2447     if (c->version >= 13)
2448         pa_tagstruct_putu32(reply, idx);
2449
2450     pa_pstream_send_tagstruct(c->pstream, reply);
2451 }
2452
2453 static void command_remove_sample(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2454     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2455     const char *name;
2456
2457     pa_native_connection_assert_ref(c);
2458     pa_assert(t);
2459
2460     if (pa_tagstruct_gets(t, &name) < 0 ||
2461         !pa_tagstruct_eof(t)) {
2462         protocol_error(c);
2463         return;
2464     }
2465
2466     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2467     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2468
2469     if (pa_scache_remove_item(c->protocol->core, name) < 0) {
2470         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2471         return;
2472     }
2473
2474     pa_pstream_send_simple_ack(c->pstream, tag);
2475 }
2476
2477 static void fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) {
2478     pa_assert(c);
2479     pa_assert(fixed);
2480     pa_assert(original);
2481
2482     *fixed = *original;
2483
2484     if (c->version < 12) {
2485         /* Before protocol version 12 we didn't support S32 samples,
2486          * so we need to lie about this to the client */
2487
2488         if (fixed->format == PA_SAMPLE_S32LE)
2489             fixed->format = PA_SAMPLE_FLOAT32LE;
2490         if (fixed->format == PA_SAMPLE_S32BE)
2491             fixed->format = PA_SAMPLE_FLOAT32BE;
2492     }
2493 }
2494
2495 static void sink_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink *sink) {
2496     pa_sample_spec fixed_ss;
2497
2498     pa_assert(t);
2499     pa_sink_assert_ref(sink);
2500
2501     fixup_sample_spec(c, &fixed_ss, &sink->sample_spec);
2502
2503     pa_tagstruct_put(
2504         t,
2505         PA_TAG_U32, sink->index,
2506         PA_TAG_STRING, sink->name,
2507         PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2508         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2509         PA_TAG_CHANNEL_MAP, &sink->channel_map,
2510         PA_TAG_U32, sink->module ? sink->module->index : PA_INVALID_INDEX,
2511         PA_TAG_CVOLUME, pa_sink_get_volume(sink),
2512         PA_TAG_BOOLEAN, pa_sink_get_mute(sink),
2513         PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX,
2514         PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL,
2515         PA_TAG_USEC, pa_sink_get_latency(sink),
2516         PA_TAG_STRING, sink->driver,
2517         PA_TAG_U32, sink->flags,
2518         PA_TAG_INVALID);
2519
2520     if (c->version >= 13) {
2521         pa_tagstruct_put_proplist(t, sink->proplist);
2522         pa_tagstruct_put_usec(t, pa_sink_get_requested_latency(sink));
2523     }
2524 }
2525
2526 static void source_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source *source) {
2527     pa_sample_spec fixed_ss;
2528
2529     pa_assert(t);
2530     pa_source_assert_ref(source);
2531
2532     fixup_sample_spec(c, &fixed_ss, &source->sample_spec);
2533
2534     pa_tagstruct_put(
2535         t,
2536         PA_TAG_U32, source->index,
2537         PA_TAG_STRING, source->name,
2538         PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2539         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2540         PA_TAG_CHANNEL_MAP, &source->channel_map,
2541         PA_TAG_U32, source->module ? source->module->index : PA_INVALID_INDEX,
2542         PA_TAG_CVOLUME, pa_source_get_volume(source),
2543         PA_TAG_BOOLEAN, pa_source_get_mute(source),
2544         PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX,
2545         PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
2546         PA_TAG_USEC, pa_source_get_latency(source),
2547         PA_TAG_STRING, source->driver,
2548         PA_TAG_U32, source->flags,
2549         PA_TAG_INVALID);
2550
2551     if (c->version >= 13) {
2552         pa_tagstruct_put_proplist(t, source->proplist);
2553         pa_tagstruct_put_usec(t, pa_source_get_requested_latency(source));
2554     }
2555 }
2556
2557
2558 static void client_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_client *client) {
2559     pa_assert(t);
2560     pa_assert(client);
2561
2562     pa_tagstruct_putu32(t, client->index);
2563     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME)));
2564     pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX);
2565     pa_tagstruct_puts(t, client->driver);
2566
2567     if (c->version >= 13)
2568         pa_tagstruct_put_proplist(t, client->proplist);
2569
2570 }
2571
2572 static void module_fill_tagstruct(pa_tagstruct *t, pa_module *module) {
2573     pa_assert(t);
2574     pa_assert(module);
2575
2576     pa_tagstruct_putu32(t, module->index);
2577     pa_tagstruct_puts(t, module->name);
2578     pa_tagstruct_puts(t, module->argument);
2579     pa_tagstruct_putu32(t, module->n_used);
2580     pa_tagstruct_put_boolean(t, module->auto_unload);
2581 }
2582
2583 static void sink_input_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink_input *s) {
2584     pa_sample_spec fixed_ss;
2585     pa_usec_t sink_latency;
2586
2587     pa_assert(t);
2588     pa_sink_input_assert_ref(s);
2589
2590     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2591
2592     pa_tagstruct_putu32(t, s->index);
2593     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2594     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2595     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2596     pa_tagstruct_putu32(t, s->sink->index);
2597     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2598     pa_tagstruct_put_channel_map(t, &s->channel_map);
2599     pa_tagstruct_put_cvolume(t, &s->volume);
2600     pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s, &sink_latency));
2601     pa_tagstruct_put_usec(t, sink_latency);
2602     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s)));
2603     pa_tagstruct_puts(t, s->driver);
2604     if (c->version >= 11)
2605         pa_tagstruct_put_boolean(t, pa_sink_input_get_mute(s));
2606     if (c->version >= 13)
2607         pa_tagstruct_put_proplist(t, s->proplist);
2608 }
2609
2610 static void source_output_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source_output *s) {
2611     pa_sample_spec fixed_ss;
2612     pa_usec_t source_latency;
2613
2614     pa_assert(t);
2615     pa_source_output_assert_ref(s);
2616
2617     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2618
2619     pa_tagstruct_putu32(t, s->index);
2620     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2621     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2622     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2623     pa_tagstruct_putu32(t, s->source->index);
2624     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2625     pa_tagstruct_put_channel_map(t, &s->channel_map);
2626     pa_tagstruct_put_usec(t, pa_source_output_get_latency(s, &source_latency));
2627     pa_tagstruct_put_usec(t, source_latency);
2628     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s)));
2629     pa_tagstruct_puts(t, s->driver);
2630
2631     if (c->version >= 13)
2632         pa_tagstruct_put_proplist(t, s->proplist);
2633 }
2634
2635 static void scache_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_scache_entry *e) {
2636     pa_sample_spec fixed_ss;
2637
2638     pa_assert(t);
2639     pa_assert(e);
2640
2641     if (e->memchunk.memblock)
2642         fixup_sample_spec(c, &fixed_ss, &e->sample_spec);
2643     else
2644         memset(&fixed_ss, 0, sizeof(fixed_ss));
2645
2646     pa_tagstruct_putu32(t, e->index);
2647     pa_tagstruct_puts(t, e->name);
2648     pa_tagstruct_put_cvolume(t, &e->volume);
2649     pa_tagstruct_put_usec(t, e->memchunk.memblock ? pa_bytes_to_usec(e->memchunk.length, &e->sample_spec) : 0);
2650     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2651     pa_tagstruct_put_channel_map(t, &e->channel_map);
2652     pa_tagstruct_putu32(t, e->memchunk.length);
2653     pa_tagstruct_put_boolean(t, e->lazy);
2654     pa_tagstruct_puts(t, e->filename);
2655
2656     if (c->version >= 13)
2657         pa_tagstruct_put_proplist(t, e->proplist);
2658 }
2659
2660 static void command_get_info(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2661     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2662     uint32_t idx;
2663     pa_sink *sink = NULL;
2664     pa_source *source = NULL;
2665     pa_client *client = NULL;
2666     pa_module *module = NULL;
2667     pa_sink_input *si = NULL;
2668     pa_source_output *so = NULL;
2669     pa_scache_entry *sce = NULL;
2670     const char *name;
2671     pa_tagstruct *reply;
2672
2673     pa_native_connection_assert_ref(c);
2674     pa_assert(t);
2675
2676     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2677         (command != PA_COMMAND_GET_CLIENT_INFO &&
2678          command != PA_COMMAND_GET_MODULE_INFO &&
2679          command != PA_COMMAND_GET_SINK_INPUT_INFO &&
2680          command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
2681          pa_tagstruct_gets(t, &name) < 0) ||
2682         !pa_tagstruct_eof(t)) {
2683         protocol_error(c);
2684         return;
2685     }
2686
2687     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2688     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2689
2690     if (command == PA_COMMAND_GET_SINK_INFO) {
2691         if (idx != PA_INVALID_INDEX)
2692             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2693         else
2694             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2695     } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
2696         if (idx != PA_INVALID_INDEX)
2697             source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2698         else
2699             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2700     } else if (command == PA_COMMAND_GET_CLIENT_INFO)
2701         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
2702     else if (command == PA_COMMAND_GET_MODULE_INFO)
2703         module = pa_idxset_get_by_index(c->protocol->core->modules, idx);
2704     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
2705         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2706     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
2707         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
2708     else {
2709         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO);
2710         if (idx != PA_INVALID_INDEX)
2711             sce = pa_idxset_get_by_index(c->protocol->core->scache, idx);
2712         else
2713             sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0);
2714     }
2715
2716     if (!sink && !source && !client && !module && !si && !so && !sce) {
2717         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2718         return;
2719     }
2720
2721     reply = reply_new(tag);
2722     if (sink)
2723         sink_fill_tagstruct(c, reply, sink);
2724     else if (source)
2725         source_fill_tagstruct(c, reply, source);
2726     else if (client)
2727         client_fill_tagstruct(c, reply, client);
2728     else if (module)
2729         module_fill_tagstruct(reply, module);
2730     else if (si)
2731         sink_input_fill_tagstruct(c, reply, si);
2732     else if (so)
2733         source_output_fill_tagstruct(c, reply, so);
2734     else
2735         scache_fill_tagstruct(c, reply, sce);
2736     pa_pstream_send_tagstruct(c->pstream, reply);
2737 }
2738
2739 static void command_get_info_list(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2740     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2741     pa_idxset *i;
2742     uint32_t idx;
2743     void *p;
2744     pa_tagstruct *reply;
2745
2746     pa_native_connection_assert_ref(c);
2747     pa_assert(t);
2748
2749     if (!pa_tagstruct_eof(t)) {
2750         protocol_error(c);
2751         return;
2752     }
2753
2754     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2755
2756     reply = reply_new(tag);
2757
2758     if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2759         i = c->protocol->core->sinks;
2760     else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2761         i = c->protocol->core->sources;
2762     else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2763         i = c->protocol->core->clients;
2764     else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2765         i = c->protocol->core->modules;
2766     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2767         i = c->protocol->core->sink_inputs;
2768     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2769         i = c->protocol->core->source_outputs;
2770     else {
2771         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2772         i = c->protocol->core->scache;
2773     }
2774
2775     if (i) {
2776         for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) {
2777             if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2778                 sink_fill_tagstruct(c, reply, p);
2779             else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2780                 source_fill_tagstruct(c, reply, p);
2781             else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2782                 client_fill_tagstruct(c, reply, p);
2783             else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2784                 module_fill_tagstruct(reply, p);
2785             else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2786                 sink_input_fill_tagstruct(c, reply, p);
2787             else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2788                 source_output_fill_tagstruct(c, reply, p);
2789             else {
2790                 pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2791                 scache_fill_tagstruct(c, reply, p);
2792             }
2793         }
2794     }
2795
2796     pa_pstream_send_tagstruct(c->pstream, reply);
2797 }
2798
2799 static void command_get_server_info(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2800     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2801     pa_tagstruct *reply;
2802     char txt[256];
2803     const char *n;
2804     pa_sample_spec fixed_ss;
2805
2806     pa_native_connection_assert_ref(c);
2807     pa_assert(t);
2808
2809     if (!pa_tagstruct_eof(t)) {
2810         protocol_error(c);
2811         return;
2812     }
2813
2814     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2815
2816     reply = reply_new(tag);
2817     pa_tagstruct_puts(reply, PACKAGE_NAME);
2818     pa_tagstruct_puts(reply, PACKAGE_VERSION);
2819     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
2820     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
2821
2822     fixup_sample_spec(c, &fixed_ss, &c->protocol->core->default_sample_spec);
2823     pa_tagstruct_put_sample_spec(reply, &fixed_ss);
2824
2825     n = pa_namereg_get_default_sink_name(c->protocol->core);
2826     pa_tagstruct_puts(reply, n);
2827     n = pa_namereg_get_default_source_name(c->protocol->core);
2828     pa_tagstruct_puts(reply, n);
2829
2830     pa_tagstruct_putu32(reply, c->protocol->core->cookie);
2831
2832     pa_pstream_send_tagstruct(c->pstream, reply);
2833 }
2834
2835 static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) {
2836     pa_tagstruct *t;
2837     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2838
2839     pa_native_connection_assert_ref(c);
2840
2841     t = pa_tagstruct_new(NULL, 0);
2842     pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
2843     pa_tagstruct_putu32(t, (uint32_t) -1);
2844     pa_tagstruct_putu32(t, e);
2845     pa_tagstruct_putu32(t, idx);
2846     pa_pstream_send_tagstruct(c->pstream, t);
2847 }
2848
2849 static void command_subscribe(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2850     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2851     pa_subscription_mask_t m;
2852
2853     pa_native_connection_assert_ref(c);
2854     pa_assert(t);
2855
2856     if (pa_tagstruct_getu32(t, &m) < 0 ||
2857         !pa_tagstruct_eof(t)) {
2858         protocol_error(c);
2859         return;
2860     }
2861
2862     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2863     CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID);
2864
2865     if (c->subscription)
2866         pa_subscription_free(c->subscription);
2867
2868     if (m != 0) {
2869         c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
2870         pa_assert(c->subscription);
2871     } else
2872         c->subscription = NULL;
2873
2874     pa_pstream_send_simple_ack(c->pstream, tag);
2875 }
2876
2877 static void command_set_volume(
2878         PA_GCC_UNUSED pa_pdispatch *pd,
2879         uint32_t command,
2880         uint32_t tag,
2881         pa_tagstruct *t,
2882         void *userdata) {
2883
2884     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2885     uint32_t idx;
2886     pa_cvolume volume;
2887     pa_sink *sink = NULL;
2888     pa_source *source = NULL;
2889     pa_sink_input *si = NULL;
2890     const char *name = NULL;
2891
2892     pa_native_connection_assert_ref(c);
2893     pa_assert(t);
2894
2895     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2896         (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2897         (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2898         pa_tagstruct_get_cvolume(t, &volume) ||
2899         !pa_tagstruct_eof(t)) {
2900         protocol_error(c);
2901         return;
2902     }
2903
2904     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2905     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2906     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
2907
2908     switch (command) {
2909
2910         case PA_COMMAND_SET_SINK_VOLUME:
2911             if (idx != PA_INVALID_INDEX)
2912                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2913             else
2914                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2915             break;
2916
2917         case PA_COMMAND_SET_SOURCE_VOLUME:
2918             if (idx != PA_INVALID_INDEX)
2919                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2920             else
2921                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2922             break;
2923
2924         case PA_COMMAND_SET_SINK_INPUT_VOLUME:
2925             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2926             break;
2927
2928         default:
2929             pa_assert_not_reached();
2930     }
2931
2932     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
2933
2934     if (sink)
2935         pa_sink_set_volume(sink, &volume);
2936     else if (source)
2937         pa_source_set_volume(source, &volume);
2938     else if (si)
2939         pa_sink_input_set_volume(si, &volume);
2940
2941     pa_pstream_send_simple_ack(c->pstream, tag);
2942 }
2943
2944 static void command_set_mute(
2945         PA_GCC_UNUSED pa_pdispatch *pd,
2946         uint32_t command,
2947         uint32_t tag,
2948         pa_tagstruct *t,
2949         void *userdata) {
2950
2951     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
2952     uint32_t idx;
2953     pa_bool_t mute;
2954     pa_sink *sink = NULL;
2955     pa_source *source = NULL;
2956     pa_sink_input *si = NULL;
2957     const char *name = NULL;
2958
2959     pa_native_connection_assert_ref(c);
2960     pa_assert(t);
2961
2962     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2963         (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2964         (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2965         pa_tagstruct_get_boolean(t, &mute) ||
2966         !pa_tagstruct_eof(t)) {
2967         protocol_error(c);
2968         return;
2969     }
2970
2971     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2972     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2973
2974     switch (command) {
2975
2976         case PA_COMMAND_SET_SINK_MUTE:
2977
2978             if (idx != PA_INVALID_INDEX)
2979                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2980             else
2981                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2982
2983             break;
2984
2985         case PA_COMMAND_SET_SOURCE_MUTE:
2986             if (idx != PA_INVALID_INDEX)
2987                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2988             else
2989                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2990
2991             break;
2992
2993         case PA_COMMAND_SET_SINK_INPUT_MUTE:
2994             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2995             break;
2996
2997         default:
2998             pa_assert_not_reached();
2999     }
3000
3001     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
3002
3003     if (sink)
3004         pa_sink_set_mute(sink, mute);
3005     else if (source)
3006         pa_source_set_mute(source, mute);
3007     else if (si)
3008         pa_sink_input_set_mute(si, mute);
3009
3010     pa_pstream_send_simple_ack(c->pstream, tag);
3011 }
3012
3013 static void command_cork_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3014     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3015     uint32_t idx;
3016     pa_bool_t b;
3017     playback_stream *s;
3018
3019     pa_native_connection_assert_ref(c);
3020     pa_assert(t);
3021
3022     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3023         pa_tagstruct_get_boolean(t, &b) < 0 ||
3024         !pa_tagstruct_eof(t)) {
3025         protocol_error(c);
3026         return;
3027     }
3028
3029     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3030     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3031     s = pa_idxset_get_by_index(c->output_streams, idx);
3032     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3033     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3034
3035     pa_sink_input_cork(s->sink_input, b);
3036     pa_pstream_send_simple_ack(c->pstream, tag);
3037 }
3038
3039 static void command_trigger_or_flush_or_prebuf_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3040     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3041     uint32_t idx;
3042     playback_stream *s;
3043
3044     pa_native_connection_assert_ref(c);
3045     pa_assert(t);
3046
3047     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3048         !pa_tagstruct_eof(t)) {
3049         protocol_error(c);
3050         return;
3051     }
3052
3053     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3054     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3055     s = pa_idxset_get_by_index(c->output_streams, idx);
3056     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3057     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3058
3059     switch (command) {
3060         case PA_COMMAND_FLUSH_PLAYBACK_STREAM:
3061             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL);
3062             break;
3063
3064         case PA_COMMAND_PREBUF_PLAYBACK_STREAM:
3065             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL);
3066             break;
3067
3068         case PA_COMMAND_TRIGGER_PLAYBACK_STREAM:
3069             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL);
3070             break;
3071
3072         default:
3073             pa_assert_not_reached();
3074     }
3075
3076     pa_pstream_send_simple_ack(c->pstream, tag);
3077 }
3078
3079 static void command_cork_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3080     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3081     uint32_t idx;
3082     record_stream *s;
3083     pa_bool_t b;
3084
3085     pa_native_connection_assert_ref(c);
3086     pa_assert(t);
3087
3088     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3089         pa_tagstruct_get_boolean(t, &b) < 0 ||
3090         !pa_tagstruct_eof(t)) {
3091         protocol_error(c);
3092         return;
3093     }
3094
3095     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3096     s = pa_idxset_get_by_index(c->record_streams, idx);
3097     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3098
3099     pa_source_output_cork(s->source_output, b);
3100     pa_memblockq_prebuf_force(s->memblockq);
3101     pa_pstream_send_simple_ack(c->pstream, tag);
3102 }
3103
3104 static void command_flush_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3105     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3106     uint32_t idx;
3107     record_stream *s;
3108
3109     pa_native_connection_assert_ref(c);
3110     pa_assert(t);
3111
3112     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3113         !pa_tagstruct_eof(t)) {
3114         protocol_error(c);
3115         return;
3116     }
3117
3118     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3119     s = pa_idxset_get_by_index(c->record_streams, idx);
3120     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3121
3122     pa_memblockq_flush_read(s->memblockq);
3123     pa_pstream_send_simple_ack(c->pstream, tag);
3124 }
3125
3126 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3127     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3128     uint32_t idx;
3129     uint32_t maxlength, tlength, prebuf, minreq, fragsize;
3130     pa_tagstruct *reply;
3131
3132     pa_native_connection_assert_ref(c);
3133     pa_assert(t);
3134
3135     if (pa_tagstruct_getu32(t, &idx) < 0) {
3136         protocol_error(c);
3137         return;
3138     }
3139
3140     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3141
3142     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR) {
3143         playback_stream *s;
3144         pa_bool_t adjust_latency = FALSE;
3145
3146         s = pa_idxset_get_by_index(c->output_streams, idx);
3147         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3148         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3149
3150         if (pa_tagstruct_get(
3151                     t,
3152                     PA_TAG_U32, &maxlength,
3153                     PA_TAG_U32, &tlength,
3154                     PA_TAG_U32, &prebuf,
3155                     PA_TAG_U32, &minreq,
3156                     PA_TAG_INVALID) < 0 ||
3157             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3158             !pa_tagstruct_eof(t)) {
3159             protocol_error(c);
3160             return;
3161         }
3162
3163         fix_playback_buffer_attr_pre(s, adjust_latency, &maxlength, &tlength, &prebuf, &minreq);
3164         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3165         pa_memblockq_set_tlength(s->memblockq, tlength);
3166         pa_memblockq_set_prebuf(s->memblockq, prebuf);
3167         pa_memblockq_set_minreq(s->memblockq, minreq);
3168         fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq);
3169
3170         reply = reply_new(tag);
3171         pa_tagstruct_putu32(reply, maxlength);
3172         pa_tagstruct_putu32(reply, tlength);
3173         pa_tagstruct_putu32(reply, prebuf);
3174         pa_tagstruct_putu32(reply, minreq);
3175
3176         if (c->version >= 13)
3177             pa_tagstruct_put_usec(reply, s->sink_latency);
3178
3179     } else {
3180         record_stream *s;
3181         pa_bool_t adjust_latency = FALSE;
3182         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR);
3183
3184         s = pa_idxset_get_by_index(c->record_streams, idx);
3185         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3186
3187         if (pa_tagstruct_get(
3188                     t,
3189                     PA_TAG_U32, &maxlength,
3190                     PA_TAG_U32, &fragsize,
3191                     PA_TAG_INVALID) < 0 ||
3192             (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) ||
3193             !pa_tagstruct_eof(t)) {
3194             protocol_error(c);
3195             return;
3196         }
3197
3198         fix_record_buffer_attr_pre(s, adjust_latency, &maxlength, &fragsize);
3199         pa_memblockq_set_maxlength(s->memblockq, maxlength);
3200         fix_record_buffer_attr_post(s, &maxlength, &fragsize);
3201
3202         reply = reply_new(tag);
3203         pa_tagstruct_putu32(reply, maxlength);
3204         pa_tagstruct_putu32(reply, fragsize);
3205
3206         if (c->version >= 13)
3207             pa_tagstruct_put_usec(reply, s->source_latency);
3208     }
3209
3210     pa_pstream_send_tagstruct(c->pstream, reply);
3211 }
3212
3213 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3214     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3215     uint32_t idx;
3216     uint32_t rate;
3217
3218     pa_native_connection_assert_ref(c);
3219     pa_assert(t);
3220
3221     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3222         pa_tagstruct_getu32(t, &rate) < 0 ||
3223         !pa_tagstruct_eof(t)) {
3224         protocol_error(c);
3225         return;
3226     }
3227
3228     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3229     CHECK_VALIDITY(c->pstream, rate > 0 && rate <= PA_RATE_MAX, tag, PA_ERR_INVALID);
3230
3231     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) {
3232         playback_stream *s;
3233
3234         s = pa_idxset_get_by_index(c->output_streams, idx);
3235         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3236         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3237
3238         pa_sink_input_set_rate(s->sink_input, rate);
3239
3240     } else {
3241         record_stream *s;
3242         pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE);
3243
3244         s = pa_idxset_get_by_index(c->record_streams, idx);
3245         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3246
3247         pa_source_output_set_rate(s->source_output, rate);
3248     }
3249
3250     pa_pstream_send_simple_ack(c->pstream, tag);
3251 }
3252
3253 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3254     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3255     uint32_t idx;
3256     uint32_t mode;
3257     pa_proplist *p;
3258
3259     pa_native_connection_assert_ref(c);
3260     pa_assert(t);
3261
3262     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3263
3264     p = pa_proplist_new();
3265
3266     if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) {
3267
3268         if (pa_tagstruct_getu32(t, &mode) < 0 ||
3269             pa_tagstruct_get_proplist(t, p) < 0 ||
3270             !pa_tagstruct_eof(t)) {
3271             protocol_error(c);
3272             pa_proplist_free(p);
3273             return;
3274         }
3275
3276     } else {
3277
3278         if (pa_tagstruct_getu32(t, &idx) < 0 ||
3279             pa_tagstruct_getu32(t, &mode) < 0 ||
3280             pa_tagstruct_get_proplist(t, p) < 0 ||
3281             !pa_tagstruct_eof(t)) {
3282             protocol_error(c);
3283             pa_proplist_free(p);
3284             return;
3285         }
3286     }
3287
3288     CHECK_VALIDITY(c->pstream, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, tag, PA_ERR_INVALID);
3289
3290     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST) {
3291         playback_stream *s;
3292
3293         s = pa_idxset_get_by_index(c->output_streams, idx);
3294         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3295         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3296
3297         pa_proplist_update(s->sink_input->proplist, mode, p);
3298         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3299
3300     } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) {
3301         record_stream *s;
3302
3303         s = pa_idxset_get_by_index(c->record_streams, idx);
3304         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3305
3306         pa_proplist_update(s->source_output->proplist, mode, p);
3307         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3308     } else {
3309         pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST);
3310
3311         pa_proplist_update(c->client->proplist, mode, p);
3312         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3313     }
3314
3315     pa_pstream_send_simple_ack(c->pstream, tag);
3316 }
3317
3318 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3319     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3320     uint32_t idx;
3321     unsigned changed = 0;
3322     pa_proplist *p;
3323     pa_strlist *l = NULL;
3324
3325     pa_native_connection_assert_ref(c);
3326     pa_assert(t);
3327
3328     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3329
3330     if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) {
3331
3332         if (pa_tagstruct_getu32(t, &idx) < 0) {
3333             protocol_error(c);
3334             return;
3335         }
3336     }
3337
3338     if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3339         playback_stream *s;
3340
3341         s = pa_idxset_get_by_index(c->output_streams, idx);
3342         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3343         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3344
3345         p = s->sink_input->proplist;
3346
3347     } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3348         record_stream *s;
3349
3350         s = pa_idxset_get_by_index(c->record_streams, idx);
3351         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3352
3353         p = s->source_output->proplist;
3354     } else {
3355         pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3356
3357         p = c->client->proplist;
3358     }
3359
3360     for (;;) {
3361         const char *k;
3362
3363         if (pa_tagstruct_gets(t, &k) < 0) {
3364             protocol_error(c);
3365             pa_strlist_free(l);
3366             return;
3367         }
3368
3369         if (!k)
3370             break;
3371
3372         l = pa_strlist_prepend(l, k);
3373     }
3374
3375     if (!pa_tagstruct_eof(t)) {
3376         protocol_error(c);
3377         pa_strlist_free(l);
3378         return;
3379     }
3380
3381     for (;;) {
3382         char *z;
3383
3384         l = pa_strlist_pop(l, &z);
3385
3386         if (!z)
3387             break;
3388
3389         changed += pa_proplist_unset(p, z) >= 0;
3390         pa_xfree(z);
3391     }
3392
3393     pa_pstream_send_simple_ack(c->pstream, tag);
3394
3395     if (changed) {
3396         if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3397             playback_stream *s;
3398
3399             s = pa_idxset_get_by_index(c->output_streams, idx);
3400             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3401
3402         } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3403             record_stream *s;
3404
3405             s = pa_idxset_get_by_index(c->record_streams, idx);
3406             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3407
3408         } else {
3409             pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3410             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3411         }
3412     }
3413 }
3414
3415 static void command_set_default_sink_or_source(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3416     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3417     const char *s;
3418
3419     pa_native_connection_assert_ref(c);
3420     pa_assert(t);
3421
3422     if (pa_tagstruct_gets(t, &s) < 0 ||
3423         !pa_tagstruct_eof(t)) {
3424         protocol_error(c);
3425         return;
3426     }
3427
3428     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3429     CHECK_VALIDITY(c->pstream, !s || (*s && pa_utf8_valid(s)), tag, PA_ERR_INVALID);
3430
3431     pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
3432     pa_pstream_send_simple_ack(c->pstream, tag);
3433 }
3434
3435 static void command_set_stream_name(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3436     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3437     uint32_t idx;
3438     const char *name;
3439
3440     pa_native_connection_assert_ref(c);
3441     pa_assert(t);
3442
3443     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3444         pa_tagstruct_gets(t, &name) < 0 ||
3445         !pa_tagstruct_eof(t)) {
3446         protocol_error(c);
3447         return;
3448     }
3449
3450     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3451     CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3452
3453     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
3454         playback_stream *s;
3455
3456         s = pa_idxset_get_by_index(c->output_streams, idx);
3457         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3458         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3459
3460         pa_sink_input_set_name(s->sink_input, name);
3461
3462     } else {
3463         record_stream *s;
3464         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_NAME);
3465
3466         s = pa_idxset_get_by_index(c->record_streams, idx);
3467         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3468
3469         pa_source_output_set_name(s->source_output, name);
3470     }
3471
3472     pa_pstream_send_simple_ack(c->pstream, tag);
3473 }
3474
3475 static void command_kill(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3476     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3477     uint32_t idx;
3478
3479     pa_native_connection_assert_ref(c);
3480     pa_assert(t);
3481
3482     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3483         !pa_tagstruct_eof(t)) {
3484         protocol_error(c);
3485         return;
3486     }
3487
3488     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3489
3490     if (command == PA_COMMAND_KILL_CLIENT) {
3491         pa_client *client;
3492
3493         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
3494         CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY);
3495
3496         pa_native_connection_ref(c);
3497         pa_client_kill(client);
3498
3499     } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
3500         pa_sink_input *s;
3501
3502         s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3503         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3504
3505         pa_native_connection_ref(c);
3506         pa_sink_input_kill(s);
3507     } else {
3508         pa_source_output *s;
3509
3510         pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
3511
3512         s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3513         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3514
3515         pa_native_connection_ref(c);
3516         pa_source_output_kill(s);
3517     }
3518
3519     pa_pstream_send_simple_ack(c->pstream, tag);
3520     pa_native_connection_unref(c);
3521 }
3522
3523 static void command_load_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3524     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3525     pa_module *m;
3526     const char *name, *argument;
3527     pa_tagstruct *reply;
3528
3529     pa_native_connection_assert_ref(c);
3530     pa_assert(t);
3531
3532     if (pa_tagstruct_gets(t, &name) < 0 ||
3533         pa_tagstruct_gets(t, &argument) < 0 ||
3534         !pa_tagstruct_eof(t)) {
3535         protocol_error(c);
3536         return;
3537     }
3538
3539     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3540     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID);
3541     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3542
3543     if (!(m = pa_module_load(c->protocol->core, name, argument))) {
3544         pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED);
3545         return;
3546     }
3547
3548     reply = reply_new(tag);
3549     pa_tagstruct_putu32(reply, m->index);
3550     pa_pstream_send_tagstruct(c->pstream, reply);
3551 }
3552
3553 static void command_unload_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3554     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3555     uint32_t idx;
3556     pa_module *m;
3557
3558     pa_native_connection_assert_ref(c);
3559     pa_assert(t);
3560
3561     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3562         !pa_tagstruct_eof(t)) {
3563         protocol_error(c);
3564         return;
3565     }
3566
3567     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3568     m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3569     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY);
3570
3571     pa_module_unload_request(m);
3572     pa_pstream_send_simple_ack(c->pstream, tag);
3573 }
3574
3575 static void command_add_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3576     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3577     const char *name, *module, *argument;
3578     uint32_t type;
3579     uint32_t idx;
3580     pa_tagstruct *reply;
3581
3582     pa_native_connection_assert_ref(c);
3583     pa_assert(t);
3584
3585     if (pa_tagstruct_gets(t, &name) < 0 ||
3586         pa_tagstruct_getu32(t, &type) < 0 ||
3587         pa_tagstruct_gets(t, &module) < 0 ||
3588         pa_tagstruct_gets(t, &argument) < 0 ||
3589         !pa_tagstruct_eof(t)) {
3590         protocol_error(c);
3591         return;
3592     }
3593
3594     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3595     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3596     CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID);
3597     CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID);
3598     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3599
3600     if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) {
3601         pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
3602         return;
3603     }
3604
3605     reply = reply_new(tag);
3606     pa_tagstruct_putu32(reply, idx);
3607     pa_pstream_send_tagstruct(c->pstream, reply);
3608 }
3609
3610 static void command_remove_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3611     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3612     const char *name = NULL;
3613     uint32_t type, idx = PA_IDXSET_INVALID;
3614     int r;
3615
3616     pa_native_connection_assert_ref(c);
3617     pa_assert(t);
3618
3619     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3620         (pa_tagstruct_gets(t, &name) < 0 ||
3621          pa_tagstruct_getu32(t, &type) < 0)) ||
3622         !pa_tagstruct_eof(t)) {
3623         protocol_error(c);
3624         return;
3625     }
3626
3627     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3628     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3629     CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID);
3630
3631     if (name)
3632         r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3633     else
3634         r = pa_autoload_remove_by_index(c->protocol->core, idx);
3635
3636     CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY);
3637
3638     pa_pstream_send_simple_ack(c->pstream, tag);
3639 }
3640
3641 static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) {
3642     pa_assert(t && e);
3643
3644     pa_tagstruct_putu32(t, e->index);
3645     pa_tagstruct_puts(t, e->name);
3646     pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1);
3647     pa_tagstruct_puts(t, e->module);
3648     pa_tagstruct_puts(t, e->argument);
3649 }
3650
3651 static void command_get_autoload_info(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3652     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3653     const pa_autoload_entry *a = NULL;
3654     uint32_t type, idx;
3655     const char *name;
3656     pa_tagstruct *reply;
3657
3658     pa_native_connection_assert_ref(c);
3659     pa_assert(t);
3660
3661     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3662         (pa_tagstruct_gets(t, &name) < 0 ||
3663          pa_tagstruct_getu32(t, &type) < 0)) ||
3664         !pa_tagstruct_eof(t)) {
3665         protocol_error(c);
3666         return;
3667     }
3668
3669     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3670     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3671     CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
3672
3673     if (name)
3674         a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3675     else
3676         a = pa_autoload_get_by_index(c->protocol->core, idx);
3677
3678     CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY);
3679
3680     reply = reply_new(tag);
3681     autoload_fill_tagstruct(reply, a);
3682     pa_pstream_send_tagstruct(c->pstream, reply);
3683 }
3684
3685 static void command_get_autoload_info_list(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3686     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3687     pa_tagstruct *reply;
3688
3689     pa_native_connection_assert_ref(c);
3690     pa_assert(t);
3691
3692     if (!pa_tagstruct_eof(t)) {
3693         protocol_error(c);
3694         return;
3695     }
3696
3697     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3698
3699     reply = reply_new(tag);
3700
3701     if (c->protocol->core->autoload_hashmap) {
3702         pa_autoload_entry *a;
3703         void *state = NULL;
3704
3705         while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL)))
3706             autoload_fill_tagstruct(reply, a);
3707     }
3708
3709     pa_pstream_send_tagstruct(c->pstream, reply);
3710 }
3711
3712 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3713     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3714     uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX;
3715     const char *name = NULL;
3716
3717     pa_native_connection_assert_ref(c);
3718     pa_assert(t);
3719
3720     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3721         pa_tagstruct_getu32(t, &idx_device) < 0 ||
3722         pa_tagstruct_gets(t, &name) < 0 ||
3723         !pa_tagstruct_eof(t)) {
3724         protocol_error(c);
3725         return;
3726     }
3727
3728     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3729     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3730     CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
3731
3732     if (command == PA_COMMAND_MOVE_SINK_INPUT) {
3733         pa_sink_input *si = NULL;
3734         pa_sink *sink = NULL;
3735
3736         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3737
3738         if (idx_device != PA_INVALID_INDEX)
3739             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device);
3740         else
3741             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3742
3743         CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY);
3744
3745         if (pa_sink_input_move_to(si, sink) < 0) {
3746             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3747             return;
3748         }
3749     } else {
3750         pa_source_output *so = NULL;
3751         pa_source *source;
3752
3753         pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT);
3754
3755         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3756
3757         if (idx_device != PA_INVALID_INDEX)
3758             source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device);
3759         else
3760             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3761
3762         CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY);
3763
3764         if (pa_source_output_move_to(so, source) < 0) {
3765             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3766             return;
3767         }
3768     }
3769
3770     pa_pstream_send_simple_ack(c->pstream, tag);
3771 }
3772
3773 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3774     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3775     uint32_t idx = PA_INVALID_INDEX;
3776     const char *name = NULL;
3777     pa_bool_t b;
3778
3779     pa_native_connection_assert_ref(c);
3780     pa_assert(t);
3781
3782     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3783         pa_tagstruct_gets(t, &name) < 0 ||
3784         pa_tagstruct_get_boolean(t, &b) < 0 ||
3785         !pa_tagstruct_eof(t)) {
3786         protocol_error(c);
3787         return;
3788     }
3789
3790     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3791     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || !*name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
3792
3793     if (command == PA_COMMAND_SUSPEND_SINK) {
3794
3795         if (idx == PA_INVALID_INDEX && name && !*name) {
3796
3797             if (pa_sink_suspend_all(c->protocol->core, b) < 0) {
3798                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3799                 return;
3800             }
3801         } else {
3802             pa_sink *sink = NULL;
3803
3804             if (idx != PA_INVALID_INDEX)
3805                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3806             else
3807                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3808
3809             CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
3810
3811             if (pa_sink_suspend(sink, b) < 0) {
3812                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3813                 return;
3814             }
3815         }
3816     } else {
3817
3818         pa_assert(command == PA_COMMAND_SUSPEND_SOURCE);
3819
3820         if (idx == PA_INVALID_INDEX && name && !*name) {
3821
3822             if (pa_source_suspend_all(c->protocol->core, b) < 0) {
3823                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3824                 return;
3825             }
3826
3827         } else {
3828             pa_source *source;
3829
3830             if (idx != PA_INVALID_INDEX)
3831                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3832             else
3833                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3834
3835             CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
3836
3837             if (pa_source_suspend(source, b) < 0) {
3838                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3839                 return;
3840             }
3841         }
3842     }
3843
3844     pa_pstream_send_simple_ack(c->pstream, tag);
3845 }
3846
3847 static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3848     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3849     uint32_t idx = PA_INVALID_INDEX;
3850     const char *name = NULL;
3851     pa_module *m;
3852     pa_native_protocol_ext_cb_t cb;
3853
3854     pa_native_connection_assert_ref(c);
3855     pa_assert(t);
3856
3857     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3858         pa_tagstruct_gets(t, &name) < 0) {
3859         protocol_error(c);
3860         return;
3861     }
3862
3863     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3864     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || !*name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
3865
3866     if (idx != PA_INVALID_INDEX)
3867         m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3868     else {
3869         for (m = pa_idxset_first(c->protocol->core->modules, &idx); m; m = pa_idxset_next(c->protocol->core->modules, &idx))
3870             if (strcmp(name, m->name) == 0)
3871                 break;
3872     }
3873
3874     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
3875     CHECK_VALIDITY(c->pstream, m->load_once || idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3876
3877     cb = (pa_native_protocol_ext_cb_t) pa_hashmap_get(c->protocol->extensions, m);
3878     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION);
3879
3880     if (cb(c->protocol, m, c, tag, t) < 0)
3881         protocol_error(c);
3882 }
3883
3884
3885 /*** pstream callbacks ***/
3886
3887 static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
3888     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3889
3890     pa_assert(p);
3891     pa_assert(packet);
3892     pa_native_connection_assert_ref(c);
3893
3894     if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) {
3895         pa_log("invalid packet.");
3896         native_connection_unlink(c);
3897     }
3898 }
3899
3900 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) {
3901     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3902     output_stream *stream;
3903
3904     pa_assert(p);
3905     pa_assert(chunk);
3906     pa_native_connection_assert_ref(c);
3907
3908     if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) {
3909         pa_log("client sent block for invalid stream.");
3910         /* Ignoring */
3911         return;
3912     }
3913
3914     if (playback_stream_isinstance(stream)) {
3915         playback_stream *ps = PLAYBACK_STREAM(stream);
3916
3917         if (seek != PA_SEEK_RELATIVE || offset != 0)
3918             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);
3919
3920         pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
3921
3922     } else {
3923         upload_stream *u = UPLOAD_STREAM(stream);
3924         size_t l;
3925
3926         if (!u->memchunk.memblock) {
3927             if (u->length == chunk->length) {
3928                 u->memchunk = *chunk;
3929                 pa_memblock_ref(u->memchunk.memblock);
3930                 u->length = 0;
3931             } else {
3932                 u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length);
3933                 u->memchunk.index = u->memchunk.length = 0;
3934             }
3935         }
3936
3937         pa_assert(u->memchunk.memblock);
3938
3939         l = u->length;
3940         if (l > chunk->length)
3941             l = chunk->length;
3942
3943
3944         if (l > 0) {
3945             void *src, *dst;
3946             dst = pa_memblock_acquire(u->memchunk.memblock);
3947             src = pa_memblock_acquire(chunk->memblock);
3948
3949             memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length,
3950                    (uint8_t*) src+chunk->index, l);
3951
3952             pa_memblock_release(u->memchunk.memblock);
3953             pa_memblock_release(chunk->memblock);
3954
3955             u->memchunk.length += l;
3956             u->length -= l;
3957         }
3958     }
3959 }
3960
3961 static void pstream_die_callback(pa_pstream *p, void *userdata) {
3962     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3963
3964     pa_assert(p);
3965     pa_native_connection_assert_ref(c);
3966
3967     native_connection_unlink(c);
3968     pa_log_info("Connection died.");
3969 }
3970
3971 static void pstream_drain_callback(pa_pstream *p, void *userdata) {
3972     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
3973
3974     pa_assert(p);
3975     pa_native_connection_assert_ref(c);
3976
3977     native_connection_send_memblock(c);
3978 }
3979
3980 static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
3981     pa_thread_mq *q;
3982
3983     if (!(q = pa_thread_mq_get()))
3984         pa_pstream_send_revoke(p, block_id);
3985     else
3986         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
3987 }
3988
3989 static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
3990     pa_thread_mq *q;
3991
3992     if (!(q = pa_thread_mq_get()))
3993         pa_pstream_send_release(p, block_id);
3994     else
3995         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
3996 }
3997
3998 /*** client callbacks ***/
3999
4000 static void client_kill_cb(pa_client *c) {
4001     pa_assert(c);
4002
4003     native_connection_unlink(PA_NATIVE_CONNECTION(c->userdata));
4004     pa_log_info("Connection killed.");
4005 }
4006
4007 /*** module entry points ***/
4008
4009 static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
4010     pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
4011
4012     pa_assert(m);
4013     pa_assert(tv);
4014     pa_native_connection_assert_ref(c);
4015     pa_assert(c->auth_timeout_event == e);
4016
4017     if (!c->authorized) {
4018         native_connection_unlink(c);
4019         pa_log_info("Connection terminated due to authentication timeout.");
4020     }
4021 }
4022
4023 void pa_native_protocol_connect(pa_native_protocol *p, pa_iochannel *io, pa_native_options *o) {
4024     pa_native_connection *c;
4025     char cname[256], pname[128];
4026
4027     pa_assert(p);
4028     pa_assert(io);
4029     pa_assert(o);
4030
4031     if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
4032         pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
4033         pa_iochannel_free(io);
4034         return;
4035     }
4036
4037     c = pa_msgobject_new(pa_native_connection);
4038     c->parent.parent.free = native_connection_free;
4039     c->parent.process_msg = native_connection_process_msg;
4040     c->protocol = p;
4041     c->options = pa_native_options_ref(o);
4042     c->authorized = FALSE;
4043
4044     if (o->auth_anonymous) {
4045         pa_log_info("Client authenticated anonymously.");
4046         c->authorized = TRUE;
4047     }
4048
4049     if (!c->authorized &&
4050         o->auth_ip_acl &&
4051         pa_ip_acl_check(o->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) {
4052
4053         pa_log_info("Client authenticated by IP ACL.");
4054         c->authorized = TRUE;
4055     }
4056
4057     if (!c->authorized) {
4058         struct timeval tv;
4059         pa_gettimeofday(&tv);
4060         tv.tv_sec += AUTH_TIMEOUT;
4061         c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
4062     } else
4063         c->auth_timeout_event = NULL;
4064
4065     c->is_local = pa_iochannel_socket_is_local(io);
4066     c->version = 8;
4067
4068     pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
4069     pa_snprintf(cname, sizeof(cname), "Native client (%s)", pname);
4070     c->client = pa_client_new(p->core, __FILE__, cname);
4071     pa_proplist_sets(c->client->proplist, "native-protocol.peer", pname);
4072     c->client->kill = client_kill_cb;
4073     c->client->userdata = c;
4074     c->client->module = o->module;
4075
4076     c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool);
4077     pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
4078     pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
4079     pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
4080     pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
4081     pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c);
4082     pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c);
4083
4084     c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
4085
4086     c->record_streams = pa_idxset_new(NULL, NULL);
4087     c->output_streams = pa_idxset_new(NULL, NULL);
4088
4089     c->rrobin_index = PA_IDXSET_INVALID;
4090     c->subscription = NULL;
4091
4092     pa_idxset_put(p->connections, c, NULL);
4093
4094 #ifdef HAVE_CREDS
4095     if (pa_iochannel_creds_supported(io))
4096         pa_iochannel_creds_enable(io);
4097 #endif
4098
4099     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_CONNECTION_PUT], c);
4100 }
4101
4102 void pa_native_protocol_disconnect(pa_native_protocol *p, pa_module *m) {
4103     pa_native_connection *c;
4104     void *state = NULL;
4105
4106     pa_assert(p);
4107     pa_assert(m);
4108
4109     while ((c = pa_idxset_iterate(p->connections, &state, NULL)))
4110         if (c->options->module == m)
4111             native_connection_unlink(c);
4112 }
4113
4114 static pa_native_protocol* native_protocol_new(pa_core *c) {
4115     pa_native_protocol *p;
4116     pa_native_hook_t h;
4117
4118     pa_assert(c);
4119
4120     p = pa_xnew(pa_native_protocol, 1);
4121     PA_REFCNT_INIT(p);
4122     p->core = c;
4123     p->connections = pa_idxset_new(NULL, NULL);
4124
4125     p->servers = NULL;
4126
4127     p->extensions = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
4128
4129     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4130         pa_hook_init(&p->hooks[h], p);
4131
4132     pa_assert_se(pa_shared_set(c, "native-protocol", p) >= 0);
4133
4134     return p;
4135 }
4136
4137 pa_native_protocol* pa_native_protocol_get(pa_core *c) {
4138     pa_native_protocol *p;
4139
4140     if ((p = pa_shared_get(c, "native-protocol")))
4141         return pa_native_protocol_ref(p);
4142
4143     return native_protocol_new(c);
4144 }
4145
4146 pa_native_protocol* pa_native_protocol_ref(pa_native_protocol *p) {
4147     pa_assert(p);
4148     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4149
4150     PA_REFCNT_INC(p);
4151
4152     return p;
4153 }
4154
4155 void pa_native_protocol_unref(pa_native_protocol *p) {
4156     pa_native_connection *c;
4157     pa_native_hook_t h;
4158
4159     pa_assert(p);
4160     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4161
4162     if (PA_REFCNT_DEC(p) > 0)
4163         return;
4164
4165     while ((c = pa_idxset_first(p->connections, NULL)))
4166         native_connection_unlink(c);
4167
4168     pa_idxset_free(p->connections, NULL, NULL);
4169
4170     pa_strlist_free(p->servers);
4171
4172     for (h = 0; h < PA_NATIVE_HOOK_MAX; h++)
4173         pa_hook_done(&p->hooks[h]);
4174
4175     pa_hashmap_free(p->extensions, NULL, NULL);
4176
4177     pa_assert_se(pa_shared_remove(p->core, "native-protocol") >= 0);
4178
4179     pa_xfree(p);
4180 }
4181
4182 void pa_native_protocol_add_server_string(pa_native_protocol *p, const char *name) {
4183     pa_assert(p);
4184     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4185     pa_assert(name);
4186
4187     p->servers = pa_strlist_prepend(p->servers, name);
4188
4189     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4190 }
4191
4192 void pa_native_protocol_remove_server_string(pa_native_protocol *p, const char *name) {
4193     pa_assert(p);
4194     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4195     pa_assert(name);
4196
4197     p->servers = pa_strlist_remove(p->servers, name);
4198
4199     pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers);
4200 }
4201
4202 pa_hook *pa_native_protocol_hooks(pa_native_protocol *p) {
4203     pa_assert(p);
4204     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4205
4206     return p->hooks;
4207 }
4208
4209 pa_strlist *pa_native_protocol_servers(pa_native_protocol *p) {
4210     pa_assert(p);
4211     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4212
4213     return p->servers;
4214 }
4215
4216 int pa_native_protocol_install_ext(pa_native_protocol *p, pa_module *m, pa_native_protocol_ext_cb_t cb) {
4217     pa_assert(p);
4218     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4219     pa_assert(m);
4220     pa_assert(cb);
4221     pa_assert(!pa_hashmap_get(p->extensions, m));
4222
4223     pa_assert_se(pa_hashmap_put(p->extensions, m, (void*) cb) == 0);
4224     return 0;
4225 }
4226
4227 void pa_native_protocol_remove_ext(pa_native_protocol *p, pa_module *m) {
4228     pa_assert(p);
4229     pa_assert(PA_REFCNT_VALUE(p) >= 1);
4230     pa_assert(m);
4231
4232     pa_assert_se(pa_hashmap_remove(p->extensions, m));
4233 }
4234
4235 pa_native_options* pa_native_options_new(void) {
4236     pa_native_options *o;
4237
4238     o = pa_xnew0(pa_native_options, 1);
4239     PA_REFCNT_INIT(o);
4240
4241     return o;
4242 }
4243
4244 pa_native_options* pa_native_options_ref(pa_native_options *o) {
4245     pa_assert(o);
4246     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4247
4248     PA_REFCNT_INC(o);
4249
4250     return o;
4251 }
4252
4253 void pa_native_options_unref(pa_native_options *o) {
4254     pa_assert(o);
4255     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4256
4257     if (PA_REFCNT_DEC(o) > 0)
4258         return;
4259
4260     pa_xfree(o->auth_group);
4261
4262     if (o->auth_ip_acl)
4263         pa_ip_acl_free(o->auth_ip_acl);
4264
4265     if (o->auth_cookie)
4266         pa_auth_cookie_unref(o->auth_cookie);
4267
4268     pa_xfree(o);
4269 }
4270
4271 int pa_native_options_parse(pa_native_options *o, pa_core *c, pa_modargs *ma) {
4272     pa_bool_t enabled;
4273     const char *acl;
4274
4275     pa_assert(o);
4276     pa_assert(PA_REFCNT_VALUE(o) >= 1);
4277     pa_assert(ma);
4278
4279     if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &o->auth_anonymous) < 0) {
4280         pa_log("auth-anonymous= expects a boolean argument.");
4281         return -1;
4282     }
4283
4284     enabled = TRUE;
4285     if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &enabled) < 0) {
4286         pa_log("auth-group-enabled= expects a boolean argument.");
4287         return -1;
4288     }
4289
4290     pa_xfree(o->auth_group);
4291     o->auth_group = enabled ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL;
4292
4293 #ifndef HAVE_CREDS
4294     if (o->auth_group)
4295         pa_log_warn("Authentication group configured, but not available on local system. Ignoring.");
4296 #endif
4297
4298     if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) {
4299         pa_ip_acl *ipa;
4300
4301         if (!(o->auth_ip_acl = pa_ip_acl_new(acl))) {
4302             pa_log("Failed to parse IP ACL '%s'", acl);
4303             return -1;
4304         }
4305
4306         if (o->auth_ip_acl)
4307             pa_ip_acl_free(o->auth_ip_acl);
4308
4309         o->auth_ip_acl = ipa;
4310     }
4311
4312     enabled = TRUE;
4313     if (pa_modargs_get_value_boolean(ma, "auth-cookie-enabled", &enabled) < 0) {
4314         pa_log("auth-cookie-enabled= expects a boolean argument.");
4315         return -1;
4316     }
4317
4318     if (o->auth_cookie)
4319         pa_auth_cookie_unref(o->auth_cookie);
4320
4321     if (enabled) {
4322         const char *cn;
4323
4324         /* The new name for this is 'auth-cookie', for compat reasons
4325          * we check the old name too */
4326         if (!(cn = pa_modargs_get_value(ma, "auth-cookie", NULL)))
4327             if (!(cn = pa_modargs_get_value(ma, "cookie", NULL)))
4328                 cn = PA_NATIVE_COOKIE_FILE;
4329
4330         if (!(o->auth_cookie = pa_auth_cookie_get(c, cn, PA_NATIVE_COOKIE_LENGTH)))
4331             return -1;
4332
4333     } else
4334           o->auth_cookie = NULL;
4335
4336     return 0;
4337 }
4338
4339 pa_pstream* pa_native_connection_get_pstream(pa_native_connection *c) {
4340     pa_native_connection_assert_ref(c);
4341
4342     return c->pstream;
4343 }