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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <string.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <unistd.h>
  33
  34 #include <pulse/timeval.h>
  35 #include <pulse/version.h>
  36 #include <pulse/utf8.h>
  37 #include <pulse/util.h>
  38 #include <pulse/xmalloc.h>
  39
  40 #include <pulsecore/native-common.h>
  41 #include <pulsecore/packet.h>
  42 #include <pulsecore/client.h>
  43 #include <pulsecore/source-output.h>
  44 #include <pulsecore/sink-input.h>
  45 #include <pulsecore/pstream.h>
  46 #include <pulsecore/tagstruct.h>
  47 #include <pulsecore/pdispatch.h>
  48 #include <pulsecore/pstream-util.h>
  49 #include <pulsecore/authkey.h>
  50 #include <pulsecore/namereg.h>
  51 #include <pulsecore/core-scache.h>
  52 #include <pulsecore/core-subscribe.h>
  53 #include <pulsecore/log.h>
  54 #include <pulsecore/autoload.h>
  55 #include <pulsecore/authkey-prop.h>
  56 #include <pulsecore/strlist.h>
  57 #include <pulsecore/props.h>
  58 #include <pulsecore/sample-util.h>
  59 #include <pulsecore/llist.h>
  60 #include <pulsecore/creds.h>
  61 #include <pulsecore/core-util.h>
  62 #include <pulsecore/ipacl.h>
  63 #include <pulsecore/thread-mq.h>
  64
  65 #include "protocol-native.h"
  66
  67 /* Kick a client if it doesn't authenticate within this time */
  68 #define AUTH_TIMEOUT 60
  69
  70 /* Don't accept more connection than this */
  71 #define MAX_CONNECTIONS 64
  72
  73 #define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */
  74 #define DEFAULT_TLENGTH_MSEC 2000 /* 2s */
  75 #define DEFAULT_PROCESS_MSEC 20   /* 20ms */
  76 #define DEFAULT_FRAGSIZE_MSEC DEFAULT_TLENGTH_MSEC
  77
  78 typedef struct connection connection;
  79 struct pa_protocol_native;
  80
  81 typedef struct record_stream {
  82     pa_msgobject parent;
  83
  84     connection *connection;
  85     uint32_t index;
  86
  87     pa_source_output *source_output;
  88     pa_memblockq *memblockq;
  89     size_t fragment_size;
  90     pa_usec_t source_latency;
  91 } record_stream;
  92
  93 typedef struct output_stream {
  94     pa_msgobject parent;
  95 } output_stream;
  96
  97 typedef struct playback_stream {
  98     output_stream parent;
  99
 100     connection *connection;
 101     uint32_t index;
 102
 103     pa_sink_input *sink_input;
 104     pa_memblockq *memblockq;
 105     pa_bool_t drain_request;
 106     uint32_t drain_tag;
 107     uint32_t syncid;
 108     uint64_t underrun; /* length of underrun */
 109
 110     pa_atomic_t missing;
 111     size_t minreq;
 112     pa_usec_t sink_latency;
 113
 114     /* Only updated after SINK_INPUT_MESSAGE_UPDATE_LATENCY */
 115     int64_t read_index, write_index;
 116     size_t render_memblockq_length;
 117 } playback_stream;
 118
 119 typedef struct upload_stream {
 120     output_stream parent;
 121
 122     connection *connection;
 123     uint32_t index;
 124
 125     pa_memchunk memchunk;
 126     size_t length;
 127     char *name;
 128     pa_sample_spec sample_spec;
 129     pa_channel_map channel_map;
 130     pa_proplist *proplist;
 131 } upload_stream;
 132
 133 struct connection {
 134     pa_msgobject parent;
 135
 136     pa_bool_t authorized;
 137     uint32_t version;
 138     pa_protocol_native *protocol;
 139     pa_client *client;
 140     pa_pstream *pstream;
 141     pa_pdispatch *pdispatch;
 142     pa_idxset *record_streams, *output_streams;
 143     uint32_t rrobin_index;
 144     pa_subscription *subscription;
 145     pa_time_event *auth_timeout_event;
 146 };
 147
 148 PA_DECLARE_CLASS(record_stream);
 149 #define RECORD_STREAM(o) (record_stream_cast(o))
 150 static PA_DEFINE_CHECK_TYPE(record_stream, pa_msgobject);
 151
 152 PA_DECLARE_CLASS(output_stream);
 153 #define OUTPUT_STREAM(o) (output_stream_cast(o))
 154 static PA_DEFINE_CHECK_TYPE(output_stream, pa_msgobject);
 155
 156 PA_DECLARE_CLASS(playback_stream);
 157 #define PLAYBACK_STREAM(o) (playback_stream_cast(o))
 158 static PA_DEFINE_CHECK_TYPE(playback_stream, output_stream);
 159
 160 PA_DECLARE_CLASS(upload_stream);
 161 #define UPLOAD_STREAM(o) (upload_stream_cast(o))
 162 static PA_DEFINE_CHECK_TYPE(upload_stream, output_stream);
 163
 164 PA_DECLARE_CLASS(connection);
 165 #define CONNECTION(o) (connection_cast(o))
 166 static PA_DEFINE_CHECK_TYPE(connection, pa_msgobject);
 167
 168 struct pa_protocol_native {
 169     pa_module *module;
 170     pa_core *core;
 171     pa_bool_t public;
 172     pa_socket_server *server;
 173     pa_idxset *connections;
 174     uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH];
 175     pa_bool_t auth_cookie_in_property;
 176 #ifdef HAVE_CREDS
 177     char *auth_group;
 178 #endif
 179     pa_ip_acl *auth_ip_acl;
 180 };
 181
 182 enum {
 183     SINK_INPUT_MESSAGE_POST_DATA = PA_SINK_INPUT_MESSAGE_MAX, /* data from main loop to sink input */
 184     SINK_INPUT_MESSAGE_DRAIN, /* disabled prebuf, get playback started. */
 185     SINK_INPUT_MESSAGE_FLUSH,
 186     SINK_INPUT_MESSAGE_TRIGGER,
 187     SINK_INPUT_MESSAGE_SEEK,
 188     SINK_INPUT_MESSAGE_PREBUF_FORCE,
 189     SINK_INPUT_MESSAGE_UPDATE_LATENCY
 190 };
 191
 192 enum {
 193     PLAYBACK_STREAM_MESSAGE_REQUEST_DATA,      /* data requested from sink input from the main loop */
 194     PLAYBACK_STREAM_MESSAGE_UNDERFLOW,
 195     PLAYBACK_STREAM_MESSAGE_OVERFLOW,
 196     PLAYBACK_STREAM_MESSAGE_DRAIN_ACK
 197 };
 198
 199 enum {
 200     RECORD_STREAM_MESSAGE_POST_DATA         /* data from source output to main loop */
 201 };
 202
 203 enum {
 204     CONNECTION_MESSAGE_RELEASE,
 205     CONNECTION_MESSAGE_REVOKE
 206 };
 207
 208 static int sink_input_pop_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk);
 209 static void sink_input_kill_cb(pa_sink_input *i);
 210 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend);
 211 static void sink_input_moved_cb(pa_sink_input *i);
 212 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes);
 213 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes);
 214
 215
 216 static void send_memblock(connection *c);
 217 static void request_bytes(struct playback_stream*s);
 218
 219 static void source_output_kill_cb(pa_source_output *o);
 220 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk);
 221 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend);
 222 static void source_output_moved_cb(pa_source_output *o);
 223 static pa_usec_t source_output_get_latency_cb(pa_source_output *o);
 224
 225 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
 226
 227 static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 228 static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 229 static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 230 static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 231 static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 232 static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 233 static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 234 static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 235 static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 236 static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 237 static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 238 static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 239 static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 240 static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 241 static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 242 static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 243 static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 244 static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 245 static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 246 static void command_set_volume(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 247 static void command_set_mute(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 248 static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 249 static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 250 static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 251 static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 252 static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 253 static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 254 static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 255 static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 256 static void command_remove_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 257 static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 258 static void command_get_autoload_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 259 static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 260 static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 261 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 262 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 263 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 264 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 265 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 266 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 267
 268 static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
 269     [PA_COMMAND_ERROR] = NULL,
 270     [PA_COMMAND_TIMEOUT] = NULL,
 271     [PA_COMMAND_REPLY] = NULL,
 272     [PA_COMMAND_CREATE_PLAYBACK_STREAM] = command_create_playback_stream,
 273     [PA_COMMAND_DELETE_PLAYBACK_STREAM] = command_delete_stream,
 274     [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = command_drain_playback_stream,
 275     [PA_COMMAND_CREATE_RECORD_STREAM] = command_create_record_stream,
 276     [PA_COMMAND_DELETE_RECORD_STREAM] = command_delete_stream,
 277     [PA_COMMAND_AUTH] = command_auth,
 278     [PA_COMMAND_REQUEST] = NULL,
 279     [PA_COMMAND_EXIT] = command_exit,
 280     [PA_COMMAND_SET_CLIENT_NAME] = command_set_client_name,
 281     [PA_COMMAND_LOOKUP_SINK] = command_lookup,
 282     [PA_COMMAND_LOOKUP_SOURCE] = command_lookup,
 283     [PA_COMMAND_STAT] = command_stat,
 284     [PA_COMMAND_GET_PLAYBACK_LATENCY] = command_get_playback_latency,
 285     [PA_COMMAND_GET_RECORD_LATENCY] = command_get_record_latency,
 286     [PA_COMMAND_CREATE_UPLOAD_STREAM] = command_create_upload_stream,
 287     [PA_COMMAND_DELETE_UPLOAD_STREAM] = command_delete_stream,
 288     [PA_COMMAND_FINISH_UPLOAD_STREAM] = command_finish_upload_stream,
 289     [PA_COMMAND_PLAY_SAMPLE] = command_play_sample,
 290     [PA_COMMAND_REMOVE_SAMPLE] = command_remove_sample,
 291     [PA_COMMAND_GET_SINK_INFO] = command_get_info,
 292     [PA_COMMAND_GET_SOURCE_INFO] = command_get_info,
 293     [PA_COMMAND_GET_CLIENT_INFO] = command_get_info,
 294     [PA_COMMAND_GET_MODULE_INFO] = command_get_info,
 295     [PA_COMMAND_GET_SINK_INPUT_INFO] = command_get_info,
 296     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = command_get_info,
 297     [PA_COMMAND_GET_SAMPLE_INFO] = command_get_info,
 298     [PA_COMMAND_GET_SINK_INFO_LIST] = command_get_info_list,
 299     [PA_COMMAND_GET_SOURCE_INFO_LIST] = command_get_info_list,
 300     [PA_COMMAND_GET_MODULE_INFO_LIST] = command_get_info_list,
 301     [PA_COMMAND_GET_CLIENT_INFO_LIST] = command_get_info_list,
 302     [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = command_get_info_list,
 303     [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = command_get_info_list,
 304     [PA_COMMAND_GET_SAMPLE_INFO_LIST] = command_get_info_list,
 305     [PA_COMMAND_GET_SERVER_INFO] = command_get_server_info,
 306     [PA_COMMAND_SUBSCRIBE] = command_subscribe,
 307
 308     [PA_COMMAND_SET_SINK_VOLUME] = command_set_volume,
 309     [PA_COMMAND_SET_SINK_INPUT_VOLUME] = command_set_volume,
 310     [PA_COMMAND_SET_SOURCE_VOLUME] = command_set_volume,
 311
 312     [PA_COMMAND_SET_SINK_MUTE] = command_set_mute,
 313     [PA_COMMAND_SET_SINK_INPUT_MUTE] = command_set_mute,
 314     [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute,
 315
 316     [PA_COMMAND_SUSPEND_SINK] = command_suspend,
 317     [PA_COMMAND_SUSPEND_SOURCE] = command_suspend,
 318
 319     [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream,
 320     [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 321     [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 322     [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream,
 323
 324     [PA_COMMAND_CORK_RECORD_STREAM] = command_cork_record_stream,
 325     [PA_COMMAND_FLUSH_RECORD_STREAM] = command_flush_record_stream,
 326
 327     [PA_COMMAND_SET_DEFAULT_SINK] = command_set_default_sink_or_source,
 328     [PA_COMMAND_SET_DEFAULT_SOURCE] = command_set_default_sink_or_source,
 329     [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = command_set_stream_name,
 330     [PA_COMMAND_SET_RECORD_STREAM_NAME] = command_set_stream_name,
 331     [PA_COMMAND_KILL_CLIENT] = command_kill,
 332     [PA_COMMAND_KILL_SINK_INPUT] = command_kill,
 333     [PA_COMMAND_KILL_SOURCE_OUTPUT] = command_kill,
 334     [PA_COMMAND_LOAD_MODULE] = command_load_module,
 335     [PA_COMMAND_UNLOAD_MODULE] = command_unload_module,
 336     [PA_COMMAND_GET_AUTOLOAD_INFO] = command_get_autoload_info,
 337     [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = command_get_autoload_info_list,
 338     [PA_COMMAND_ADD_AUTOLOAD] = command_add_autoload,
 339     [PA_COMMAND_REMOVE_AUTOLOAD] = command_remove_autoload,
 340
 341     [PA_COMMAND_MOVE_SINK_INPUT] = command_move_stream,
 342     [PA_COMMAND_MOVE_SOURCE_OUTPUT] = command_move_stream,
 343
 344     [PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 345     [PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr,
 346
 347     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 348     [PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate,
 349
 350     [PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST] = command_update_proplist,
 351     [PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST] = command_update_proplist,
 352     [PA_COMMAND_UPDATE_CLIENT_PROPLIST] = command_update_proplist,
 353
 354     [PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST] = command_remove_proplist,
 355     [PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST] = command_remove_proplist,
 356     [PA_COMMAND_REMOVE_CLIENT_PROPLIST] = command_remove_proplist,
 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         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                 send_memblock(s->connection);
 466
 467             break;
 468     }
 469
 470     return 0;
 471 }
 472
 473 static record_stream* record_stream_new(
 474         connection *c,
 475         pa_source *source,
 476         pa_sample_spec *ss,
 477         pa_channel_map *map,
 478         uint32_t *maxlength,
 479         uint32_t *fragsize,
 480         pa_source_output_flags_t flags,
 481         pa_proplist *p,
 482         pa_bool_t adjust_latency) {
 483
 484     record_stream *s;
 485     pa_source_output *source_output;
 486     size_t base;
 487     pa_source_output_new_data data;
 488
 489     pa_assert(c);
 490     pa_assert(ss);
 491     pa_assert(maxlength);
 492     pa_assert(p);
 493
 494     pa_source_output_new_data_init(&data);
 495
 496     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
 497     pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
 498     data.driver = __FILE__;
 499     data.module = c->protocol->module;
 500     data.client = c->client;
 501     data.source = source;
 502     pa_source_output_new_data_set_sample_spec(&data, ss);
 503     pa_source_output_new_data_set_channel_map(&data, map);
 504
 505     source_output = pa_source_output_new(c->protocol->core, &data, flags);
 506
 507     pa_source_output_new_data_done(&data);
 508
 509     if (!source_output)
 510         return NULL;
 511
 512     s = pa_msgobject_new(record_stream);
 513     s->parent.parent.free = record_stream_free;
 514     s->parent.process_msg = record_stream_process_msg;
 515     s->connection = c;
 516     s->source_output = source_output;
 517
 518     s->source_output->push = source_output_push_cb;
 519     s->source_output->kill = source_output_kill_cb;
 520     s->source_output->get_latency = source_output_get_latency_cb;
 521     s->source_output->moved = source_output_moved_cb;
 522     s->source_output->suspend = source_output_suspend_cb;
 523     s->source_output->userdata = s;
 524
 525     if (*maxlength <= 0 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 526         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 527     if (*fragsize <= 0)
 528         *fragsize = pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*PA_USEC_PER_MSEC, &source_output->sample_spec);
 529
 530     if (adjust_latency) {
 531         pa_usec_t fragsize_usec;
 532
 533         /* So, the user asked us to adjust the latency according to
 534          * the what the source can provide. Half the latency will be
 535          * spent on the hw buffer, half of it in the async buffer
 536          * queue we maintain for each client. */
 537
 538         fragsize_usec = pa_bytes_to_usec(*fragsize, &source_output->sample_spec);
 539
 540         s->source_latency = pa_source_output_set_requested_latency(source_output, fragsize_usec/2);
 541
 542         if (fragsize_usec >= s->source_latency*2)
 543             fragsize_usec -= s->source_latency;
 544         else
 545             fragsize_usec = s->source_latency;
 546
 547         *fragsize = pa_usec_to_bytes(fragsize_usec, &source_output->sample_spec);
 548     }
 549
 550     s->memblockq = pa_memblockq_new(
 551             0,
 552             *maxlength,
 553             0,
 554             base = pa_frame_size(&source_output->sample_spec),
 555             1,
 556             0,
 557             0,
 558             NULL);
 559
 560     *maxlength = pa_memblockq_get_maxlength(s->memblockq);
 561
 562     s->fragment_size = (*fragsize/base)*base;
 563     if (s->fragment_size <= 0)
 564         s->fragment_size = base;
 565
 566     if (s->fragment_size > *maxlength)
 567         s->fragment_size = *maxlength;
 568
 569     *fragsize = s->fragment_size;
 570
 571     *ss = s->source_output->sample_spec;
 572     *map = s->source_output->channel_map;
 573
 574     pa_idxset_put(c->record_streams, s, &s->index);
 575
 576     pa_source_output_put(s->source_output);
 577     return s;
 578 }
 579
 580 static void playback_stream_unlink(playback_stream *s) {
 581     pa_assert(s);
 582
 583     if (!s->connection)
 584         return;
 585
 586     if (s->sink_input) {
 587         pa_sink_input_unlink(s->sink_input);
 588         pa_sink_input_unref(s->sink_input);
 589         s->sink_input = NULL;
 590     }
 591
 592     if (s->drain_request)
 593         pa_pstream_send_error(s->connection->pstream, s->drain_tag, PA_ERR_NOENTITY);
 594
 595     pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s);
 596     s->connection = NULL;
 597     playback_stream_unref(s);
 598 }
 599
 600 static void playback_stream_free(pa_object* o) {
 601     playback_stream *s = PLAYBACK_STREAM(o);
 602     pa_assert(s);
 603
 604     playback_stream_unlink(s);
 605
 606     pa_memblockq_free(s->memblockq);
 607     pa_xfree(s);
 608 }
 609
 610 static int playback_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
 611     playback_stream *s = PLAYBACK_STREAM(o);
 612     playback_stream_assert_ref(s);
 613
 614     if (!s->connection)
 615         return -1;
 616
 617     switch (code) {
 618         case PLAYBACK_STREAM_MESSAGE_REQUEST_DATA: {
 619             pa_tagstruct *t;
 620             uint32_t l = 0;
 621
 622             for (;;) {
 623                 if ((l = pa_atomic_load(&s->missing)) <= 0)
 624                     break;
 625
 626                 if (pa_atomic_cmpxchg(&s->missing, l, 0))
 627                     break;
 628             }
 629
 630             if (l <= 0)
 631                 break;
 632
 633             t = pa_tagstruct_new(NULL, 0);
 634             pa_tagstruct_putu32(t, PA_COMMAND_REQUEST);
 635             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 636             pa_tagstruct_putu32(t, s->index);
 637             pa_tagstruct_putu32(t, l);
 638             pa_pstream_send_tagstruct(s->connection->pstream, t);
 639
 640 /*             pa_log("Requesting %lu bytes", (unsigned long) l); */
 641             break;
 642         }
 643
 644         case PLAYBACK_STREAM_MESSAGE_UNDERFLOW: {
 645             pa_tagstruct *t;
 646
 647             /* Report that we're empty */
 648             t = pa_tagstruct_new(NULL, 0);
 649             pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW);
 650             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 651             pa_tagstruct_putu32(t, s->index);
 652             pa_pstream_send_tagstruct(s->connection->pstream, t);
 653             break;
 654         }
 655
 656         case PLAYBACK_STREAM_MESSAGE_OVERFLOW: {
 657             pa_tagstruct *t;
 658
 659             /* Notify the user we're overflowed*/
 660             t = pa_tagstruct_new(NULL, 0);
 661             pa_tagstruct_putu32(t, PA_COMMAND_OVERFLOW);
 662             pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
 663             pa_tagstruct_putu32(t, s->index);
 664             pa_pstream_send_tagstruct(s->connection->pstream, t);
 665             break;
 666         }
 667
 668         case PLAYBACK_STREAM_MESSAGE_DRAIN_ACK:
 669             pa_pstream_send_simple_ack(s->connection->pstream, PA_PTR_TO_UINT(userdata));
 670             break;
 671
 672     }
 673
 674     return 0;
 675 }
 676
 677 static playback_stream* playback_stream_new(
 678         connection *c,
 679         pa_sink *sink,
 680         pa_sample_spec *ss,
 681         pa_channel_map *map,
 682         uint32_t *maxlength,
 683         uint32_t *tlength,
 684         uint32_t *prebuf,
 685         uint32_t *minreq,
 686         pa_cvolume *volume,
 687         pa_bool_t muted,
 688         uint32_t syncid,
 689         uint32_t *missing,
 690         pa_sink_input_flags_t flags,
 691         pa_proplist *p,
 692         pa_bool_t adjust_latency) {
 693
 694     playback_stream *s, *ssync;
 695     pa_sink_input *sink_input;
 696     pa_memchunk silence;
 697     uint32_t idx;
 698     int64_t start_index;
 699     pa_sink_input_new_data data;
 700     pa_usec_t tlength_usec, minreq_usec, sink_usec;
 701     size_t frame_size;
 702
 703     pa_assert(c);
 704     pa_assert(ss);
 705     pa_assert(maxlength);
 706     pa_assert(tlength);
 707     pa_assert(prebuf);
 708     pa_assert(minreq);
 709     pa_assert(volume);
 710     pa_assert(missing);
 711     pa_assert(p);
 712
 713     /* Find syncid group */
 714     for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) {
 715
 716         if (!playback_stream_isinstance(ssync))
 717             continue;
 718
 719         if (ssync->syncid == syncid)
 720             break;
 721     }
 722
 723     /* Synced streams must connect to the same sink */
 724     if (ssync) {
 725
 726         if (!sink)
 727             sink = ssync->sink_input->sink;
 728         else if (sink != ssync->sink_input->sink)
 729             return NULL;
 730     }
 731
 732     pa_sink_input_new_data_init(&data);
 733
 734     pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
 735     pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
 736     data.driver = __FILE__;
 737     data.module = c->protocol->module;
 738     data.client = c->client;
 739     data.sink = sink;
 740     pa_sink_input_new_data_set_sample_spec(&data, ss);
 741     pa_sink_input_new_data_set_channel_map(&data, map);
 742     pa_sink_input_new_data_set_volume(&data, volume);
 743     pa_sink_input_new_data_set_muted(&data, muted);
 744     data.sync_base = ssync ? ssync->sink_input : NULL;
 745
 746     sink_input = pa_sink_input_new(c->protocol->core, &data, flags);
 747
 748     pa_sink_input_new_data_done(&data);
 749
 750     if (!sink_input)
 751         return NULL;
 752
 753     s = pa_msgobject_new(playback_stream);
 754     s->parent.parent.parent.free = playback_stream_free;
 755     s->parent.parent.process_msg = playback_stream_process_msg;
 756     s->connection = c;
 757     s->syncid = syncid;
 758     s->sink_input = sink_input;
 759     s->underrun = (uint64_t) -1;
 760
 761     s->sink_input->parent.process_msg = sink_input_process_msg;
 762     s->sink_input->pop = sink_input_pop_cb;
 763     s->sink_input->process_rewind = sink_input_process_rewind_cb;
 764     s->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
 765     s->sink_input->kill = sink_input_kill_cb;
 766     s->sink_input->moved = sink_input_moved_cb;
 767     s->sink_input->suspend = sink_input_suspend_cb;
 768     s->sink_input->userdata = s;
 769
 770     start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 0;
 771
 772     if (*maxlength <= 0 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
 773         *maxlength = MAX_MEMBLOCKQ_LENGTH;
 774     if (*tlength <= 0)
 775         *tlength = pa_usec_to_bytes(DEFAULT_TLENGTH_MSEC*PA_USEC_PER_MSEC, &sink_input->sample_spec);
 776     if (*minreq <= 0)
 777         *minreq = pa_usec_to_bytes(DEFAULT_PROCESS_MSEC*PA_USEC_PER_MSEC, &sink_input->sample_spec);
 778
 779     frame_size = pa_frame_size(&sink_input->sample_spec);
 780     if (*minreq <= 0)
 781         *minreq = frame_size;
 782     if (*tlength < *minreq+frame_size)
 783         *tlength = *minreq+frame_size;
 784
 785     tlength_usec = pa_bytes_to_usec(*tlength, &sink_input->sample_spec);
 786     minreq_usec = pa_bytes_to_usec(*minreq, &sink_input->sample_spec);
 787
 788     if (adjust_latency) {
 789
 790         /* So, the user asked us to adjust the latency of the stream
 791          * buffer according to the what the sink can provide. The
 792          * tlength passed in shall be the overall latency. Roughly
 793          * half the latency will be spent on the hw buffer, the other
 794          * half of it in the async buffer queue we maintain for each
 795          * client. In between we'll have a safety space of size
 796          * minreq.*/
 797
 798         sink_usec = (tlength_usec-minreq_usec)/2;
 799
 800     } else {
 801
 802         /* Ok, the user didn't ask us to adjust the latency, but we
 803          * still need to make sure that the parameters from the user
 804          * do make sense. */
 805
 806         sink_usec = tlength_usec - minreq_usec;
 807     }
 808
 809     s->sink_latency = pa_sink_input_set_requested_latency(sink_input, sink_usec);
 810
 811     if (adjust_latency) {
 812         /* Ok, we didn't necessarily get what we were asking for, so
 813          * let's subtract from what we asked for for the remaining
 814          * buffer space */
 815
 816         if (tlength_usec >= s->sink_latency)
 817             tlength_usec -= s->sink_latency;
 818     }
 819
 820     if (tlength_usec < s->sink_latency + minreq_usec)
 821         tlength_usec = s->sink_latency + minreq_usec;
 822
 823     *tlength = pa_usec_to_bytes(tlength_usec, &sink_input->sample_spec);
 824     *minreq = pa_usec_to_bytes(minreq_usec, &sink_input->sample_spec);
 825
 826     if (*minreq <= 0) {
 827         *minreq = frame_size;
 828         *tlength += frame_size;
 829     }
 830
 831     if (*tlength <= *minreq)
 832         *tlength = *minreq + frame_size;
 833
 834     if (*prebuf <= 0)
 835         *prebuf = *tlength;
 836
 837     pa_sink_input_get_silence(sink_input, &silence);
 838
 839     s->memblockq = pa_memblockq_new(
 840             start_index,
 841             *maxlength,
 842             *tlength,
 843             pa_frame_size(&sink_input->sample_spec),
 844             *prebuf,
 845             *minreq,
 846             0,
 847             &silence);
 848
 849     pa_memblock_unref(silence.memblock);
 850
 851     *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq);
 852     *tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq);
 853     *prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq);
 854     *minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq);
 855     *missing = (uint32_t) pa_memblockq_pop_missing(s->memblockq);
 856
 857     *ss = s->sink_input->sample_spec;
 858     *map = s->sink_input->channel_map;
 859
 860     s->minreq = pa_memblockq_get_minreq(s->memblockq);
 861     pa_atomic_store(&s->missing, 0);
 862     s->drain_request = FALSE;
 863
 864     pa_idxset_put(c->output_streams, s, &s->index);
 865
 866     pa_sink_input_put(s->sink_input);
 867     return s;
 868 }
 869
 870 static int connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
 871     connection *c = CONNECTION(o);
 872     connection_assert_ref(c);
 873
 874     if (!c->protocol)
 875         return -1;
 876
 877     switch (code) {
 878
 879         case CONNECTION_MESSAGE_REVOKE:
 880             pa_pstream_send_revoke(c->pstream, PA_PTR_TO_UINT(userdata));
 881             break;
 882
 883         case CONNECTION_MESSAGE_RELEASE:
 884             pa_pstream_send_release(c->pstream, PA_PTR_TO_UINT(userdata));
 885             break;
 886     }
 887
 888     return 0;
 889 }
 890
 891 static void connection_unlink(connection *c) {
 892     record_stream *r;
 893     output_stream *o;
 894
 895     pa_assert(c);
 896
 897     if (!c->protocol)
 898         return;
 899
 900     while ((r = pa_idxset_first(c->record_streams, NULL)))
 901         record_stream_unlink(r);
 902
 903     while ((o = pa_idxset_first(c->output_streams, NULL)))
 904         if (playback_stream_isinstance(o))
 905             playback_stream_unlink(PLAYBACK_STREAM(o));
 906         else
 907             upload_stream_unlink(UPLOAD_STREAM(o));
 908
 909     if (c->subscription)
 910         pa_subscription_free(c->subscription);
 911
 912     if (c->pstream)
 913         pa_pstream_unlink(c->pstream);
 914
 915     if (c->auth_timeout_event) {
 916         c->protocol->core->mainloop->time_free(c->auth_timeout_event);
 917         c->auth_timeout_event = NULL;
 918     }
 919
 920     pa_assert_se(pa_idxset_remove_by_data(c->protocol->connections, c, NULL) == c);
 921     c->protocol = NULL;
 922     connection_unref(c);
 923 }
 924
 925 static void connection_free(pa_object *o) {
 926     connection *c = CONNECTION(o);
 927
 928     pa_assert(c);
 929
 930     connection_unlink(c);
 931
 932     pa_idxset_free(c->record_streams, NULL, NULL);
 933     pa_idxset_free(c->output_streams, NULL, NULL);
 934
 935     pa_pdispatch_unref(c->pdispatch);
 936     pa_pstream_unref(c->pstream);
 937     pa_client_free(c->client);
 938
 939     pa_xfree(c);
 940 }
 941
 942 /* Called from thread context */
 943 static void request_bytes(playback_stream *s) {
 944     size_t m, previous_missing;
 945
 946     playback_stream_assert_ref(s);
 947
 948     m = pa_memblockq_pop_missing(s->memblockq);
 949
 950     if (m <= 0)
 951         return;
 952
 953 /*     pa_log("request_bytes(%lu)", (unsigned long) m); */
 954
 955     previous_missing = pa_atomic_add(&s->missing, m);
 956
 957     if (pa_memblockq_prebuf_active(s->memblockq) ||
 958         (previous_missing < s->minreq && previous_missing+m >= s->minreq)) {
 959         pa_assert(pa_thread_mq_get());
 960         pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL);
 961     }
 962 }
 963
 964 static void send_memblock(connection *c) {
 965     uint32_t start;
 966     record_stream *r;
 967
 968     start = PA_IDXSET_INVALID;
 969     for (;;) {
 970         pa_memchunk chunk;
 971
 972         if (!(r = RECORD_STREAM(pa_idxset_rrobin(c->record_streams, &c->rrobin_index))))
 973             return;
 974
 975         if (start == PA_IDXSET_INVALID)
 976             start = c->rrobin_index;
 977         else if (start == c->rrobin_index)
 978             return;
 979
 980         if (pa_memblockq_peek(r->memblockq,  &chunk) >= 0) {
 981             pa_memchunk schunk = chunk;
 982
 983             if (schunk.length > r->fragment_size)
 984                 schunk.length = r->fragment_size;
 985
 986             pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk);
 987
 988             pa_memblockq_drop(r->memblockq, schunk.length);
 989             pa_memblock_unref(schunk.memblock);
 990
 991             return;
 992         }
 993     }
 994 }
 995
 996 static void send_playback_stream_killed(playback_stream *p) {
 997     pa_tagstruct *t;
 998     playback_stream_assert_ref(p);
 999
1000     t = pa_tagstruct_new(NULL, 0);
1001     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED);
1002     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1003     pa_tagstruct_putu32(t, p->index);
1004     pa_pstream_send_tagstruct(p->connection->pstream, t);
1005 }
1006
1007 static void send_record_stream_killed(record_stream *r) {
1008     pa_tagstruct *t;
1009     record_stream_assert_ref(r);
1010
1011     t = pa_tagstruct_new(NULL, 0);
1012     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED);
1013     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1014     pa_tagstruct_putu32(t, r->index);
1015     pa_pstream_send_tagstruct(r->connection->pstream, t);
1016 }
1017
1018 /*** sink input callbacks ***/
1019
1020 static void handle_seek(playback_stream *s, int64_t indexw) {
1021     playback_stream_assert_ref(s);
1022
1023 /*     pa_log("handle_seek: %llu -- %i", (unsigned long long) s->underrun, pa_memblockq_is_readable(s->memblockq)); */
1024
1025     if (s->underrun != 0) {
1026
1027 /*         pa_log("%lu vs. %lu", (unsigned long) pa_memblockq_get_length(s->memblockq), (unsigned long) pa_memblockq_get_prebuf(s->memblockq)); */
1028
1029         if (pa_memblockq_is_readable(s->memblockq)) {
1030
1031             size_t u = pa_memblockq_get_length(s->memblockq);
1032
1033             if (u >= s->underrun)
1034                 u = s->underrun;
1035
1036             pa_log("yeah! ready to rock");
1037
1038             /* We just ended an underrun, let's ask the sink
1039              * to rewrite */
1040             s->sink_input->thread_info.ignore_rewind = TRUE;
1041             pa_sink_input_request_rewind(s->sink_input, u, TRUE);
1042         }
1043
1044     } else {
1045         int64_t indexr;
1046
1047         indexr = pa_memblockq_get_read_index(s->memblockq);
1048
1049         if (indexw < indexr)
1050             /* OK, the sink already asked for this data, so
1051              * let's have it usk us again */
1052
1053             pa_sink_input_request_rewind(s->sink_input, indexr - indexw, FALSE);
1054     }
1055
1056     request_bytes(s);
1057 }
1058
1059 /* Called from thread context */
1060 static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1061     pa_sink_input *i = PA_SINK_INPUT(o);
1062     playback_stream *s;
1063
1064     pa_sink_input_assert_ref(i);
1065     s = PLAYBACK_STREAM(i->userdata);
1066     playback_stream_assert_ref(s);
1067
1068     switch (code) {
1069
1070         case SINK_INPUT_MESSAGE_SEEK: {
1071             int64_t windex;
1072
1073             windex = pa_memblockq_get_write_index(s->memblockq);
1074             pa_memblockq_seek(s->memblockq, offset, PA_PTR_TO_UINT(userdata));
1075
1076             handle_seek(s, windex);
1077             return 0;
1078         }
1079
1080         case SINK_INPUT_MESSAGE_POST_DATA: {
1081             int64_t windex;
1082
1083             pa_assert(chunk);
1084
1085 /*             pa_log("sink input post: %lu", (unsigned long) chunk->length); */
1086
1087             windex = pa_memblockq_get_write_index(s->memblockq);
1088
1089             if (pa_memblockq_push_align(s->memblockq, chunk) < 0) {
1090                 pa_log_warn("Failed to push data into queue");
1091                 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_OVERFLOW, NULL, 0, NULL, NULL);
1092                 pa_memblockq_seek(s->memblockq, chunk->length, PA_SEEK_RELATIVE);
1093             }
1094
1095             handle_seek(s, windex);
1096
1097             return 0;
1098         }
1099
1100         case SINK_INPUT_MESSAGE_DRAIN:
1101         case SINK_INPUT_MESSAGE_FLUSH:
1102         case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1103         case SINK_INPUT_MESSAGE_TRIGGER: {
1104
1105             int64_t windex;
1106             pa_sink_input *isync;
1107             void (*func)(pa_memblockq *bq);
1108
1109             switch  (code) {
1110                 case SINK_INPUT_MESSAGE_FLUSH:
1111                     func = pa_memblockq_flush;
1112                     break;
1113
1114                 case SINK_INPUT_MESSAGE_PREBUF_FORCE:
1115                     func = pa_memblockq_prebuf_force;
1116                     break;
1117
1118                 case SINK_INPUT_MESSAGE_DRAIN:
1119                 case SINK_INPUT_MESSAGE_TRIGGER:
1120                     func = pa_memblockq_prebuf_disable;
1121                     break;
1122
1123                 default:
1124                     pa_assert_not_reached();
1125             }
1126
1127             windex = pa_memblockq_get_write_index(s->memblockq);
1128             func(s->memblockq);
1129             handle_seek(s, windex);
1130
1131             /* Do the same for all other members in the sync group */
1132             for (isync = i->sync_prev; isync; isync = isync->sync_prev) {
1133                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1134                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1135                 func(ssync->memblockq);
1136                 handle_seek(ssync, windex);
1137             }
1138
1139             for (isync = i->sync_next; isync; isync = isync->sync_next) {
1140                 playback_stream *ssync = PLAYBACK_STREAM(isync->userdata);
1141                 windex = pa_memblockq_get_write_index(ssync->memblockq);
1142                 func(ssync->memblockq);
1143                 handle_seek(ssync, windex);
1144             }
1145
1146             if (code == SINK_INPUT_MESSAGE_DRAIN) {
1147                 if (!pa_memblockq_is_readable(s->memblockq))
1148                     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_DRAIN_ACK, userdata, 0, NULL, NULL);
1149                 else {
1150                     s->drain_tag = PA_PTR_TO_UINT(userdata);
1151                     s->drain_request = TRUE;
1152                 }
1153             }
1154
1155             return 0;
1156         }
1157
1158         case SINK_INPUT_MESSAGE_UPDATE_LATENCY:
1159
1160             s->read_index = pa_memblockq_get_read_index(s->memblockq);
1161             s->write_index = pa_memblockq_get_write_index(s->memblockq);
1162             s->render_memblockq_length = pa_memblockq_get_length(s->sink_input->thread_info.render_memblockq);
1163             return 0;
1164
1165         case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1166             int64_t windex;
1167
1168             windex = pa_memblockq_get_write_index(s->memblockq);
1169
1170             pa_memblockq_prebuf_force(s->memblockq);
1171
1172             handle_seek(s, windex);
1173
1174             /* Fall through to the default handler */
1175             break;
1176         }
1177
1178         case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1179             pa_usec_t *r = userdata;
1180
1181             *r = pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &i->sample_spec);
1182
1183             /* Fall through, the default handler will add in the extra
1184              * latency added by the resampler */
1185             break;
1186         }
1187     }
1188
1189     return pa_sink_input_process_msg(o, code, userdata, offset, chunk);
1190 }
1191
1192 /* Called from thread context */
1193 static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
1194     playback_stream *s;
1195
1196     pa_sink_input_assert_ref(i);
1197     s = PLAYBACK_STREAM(i->userdata);
1198     playback_stream_assert_ref(s);
1199     pa_assert(chunk);
1200
1201     if (pa_memblockq_peek(s->memblockq, chunk) < 0) {
1202
1203 /*         pa_log("UNDERRUN"); */
1204
1205         if (s->drain_request && pa_sink_input_safe_to_remove(i)) {
1206             s->drain_request = FALSE;
1207             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);
1208         } else if (s->underrun == 0)
1209             pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, 0, NULL, NULL);
1210
1211         if (s->underrun != (size_t) -1)
1212             s->underrun += nbytes;
1213
1214 /*         pa_log("added %llu bytes, total is %llu", (unsigned long long) nbytes, (unsigned long long) s->underrun); */
1215
1216         request_bytes(s);
1217
1218         return -1;
1219     }
1220
1221 /*     pa_log("NOTUNDERRUN"); */
1222
1223     s->underrun = 0;
1224
1225     pa_memblockq_drop(s->memblockq, chunk->length);
1226     request_bytes(s);
1227
1228     return 0;
1229 }
1230
1231 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
1232     playback_stream *s;
1233
1234     pa_sink_input_assert_ref(i);
1235     s = PLAYBACK_STREAM(i->userdata);
1236     playback_stream_assert_ref(s);
1237
1238     /* If we are in an underrun, then we don't rewind */
1239     if (s->underrun != 0)
1240         return;
1241
1242     pa_memblockq_rewind(s->memblockq, nbytes);
1243 }
1244
1245 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
1246     playback_stream *s;
1247
1248     pa_sink_input_assert_ref(i);
1249     s = PLAYBACK_STREAM(i->userdata);
1250     playback_stream_assert_ref(s);
1251
1252     pa_memblockq_set_maxrewind(s->memblockq, nbytes);
1253 }
1254
1255 /* Called from main context */
1256 static void sink_input_kill_cb(pa_sink_input *i) {
1257     playback_stream *s;
1258
1259     pa_sink_input_assert_ref(i);
1260     s = PLAYBACK_STREAM(i->userdata);
1261     playback_stream_assert_ref(s);
1262
1263     send_playback_stream_killed(s);
1264     playback_stream_unlink(s);
1265 }
1266
1267 /* Called from main context */
1268 static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend) {
1269     playback_stream *s;
1270     pa_tagstruct *t;
1271
1272     pa_sink_input_assert_ref(i);
1273     s = PLAYBACK_STREAM(i->userdata);
1274     playback_stream_assert_ref(s);
1275
1276     if (s->connection->version < 12)
1277       return;
1278
1279     t = pa_tagstruct_new(NULL, 0);
1280     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_SUSPENDED);
1281     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1282     pa_tagstruct_putu32(t, s->index);
1283     pa_tagstruct_put_boolean(t, suspend);
1284     pa_pstream_send_tagstruct(s->connection->pstream, t);
1285 }
1286
1287 /* Called from main context */
1288 static void sink_input_moved_cb(pa_sink_input *i) {
1289     playback_stream *s;
1290     pa_tagstruct *t;
1291
1292     pa_sink_input_assert_ref(i);
1293     s = PLAYBACK_STREAM(i->userdata);
1294     playback_stream_assert_ref(s);
1295
1296     if (s->connection->version < 12)
1297       return;
1298
1299     t = pa_tagstruct_new(NULL, 0);
1300     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_MOVED);
1301     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1302     pa_tagstruct_putu32(t, s->index);
1303     pa_tagstruct_putu32(t, i->sink->index);
1304     pa_tagstruct_puts(t, i->sink->name);
1305     pa_tagstruct_put_boolean(t, pa_sink_get_state(i->sink) == PA_SINK_SUSPENDED);
1306     pa_pstream_send_tagstruct(s->connection->pstream, t);
1307 }
1308
1309 /*** source_output callbacks ***/
1310
1311 /* Called from thread context */
1312 static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
1313     record_stream *s;
1314
1315     pa_source_output_assert_ref(o);
1316     s = RECORD_STREAM(o->userdata);
1317     record_stream_assert_ref(s);
1318     pa_assert(chunk);
1319
1320     pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), RECORD_STREAM_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
1321 }
1322
1323 static void source_output_kill_cb(pa_source_output *o) {
1324     record_stream *s;
1325
1326     pa_source_output_assert_ref(o);
1327     s = RECORD_STREAM(o->userdata);
1328     record_stream_assert_ref(s);
1329
1330     send_record_stream_killed(s);
1331     record_stream_unlink(s);
1332 }
1333
1334 static pa_usec_t source_output_get_latency_cb(pa_source_output *o) {
1335     record_stream *s;
1336
1337     pa_source_output_assert_ref(o);
1338     s = RECORD_STREAM(o->userdata);
1339     record_stream_assert_ref(s);
1340
1341     /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/
1342
1343     return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec);
1344 }
1345
1346 /* Called from main context */
1347 static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend) {
1348     record_stream *s;
1349     pa_tagstruct *t;
1350
1351     pa_source_output_assert_ref(o);
1352     s = RECORD_STREAM(o->userdata);
1353     record_stream_assert_ref(s);
1354
1355     if (s->connection->version < 12)
1356       return;
1357
1358     t = pa_tagstruct_new(NULL, 0);
1359     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_SUSPENDED);
1360     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1361     pa_tagstruct_putu32(t, s->index);
1362     pa_tagstruct_put_boolean(t, suspend);
1363     pa_pstream_send_tagstruct(s->connection->pstream, t);
1364 }
1365
1366 /* Called from main context */
1367 static void source_output_moved_cb(pa_source_output *o) {
1368     record_stream *s;
1369     pa_tagstruct *t;
1370
1371     pa_source_output_assert_ref(o);
1372     s = RECORD_STREAM(o->userdata);
1373     record_stream_assert_ref(s);
1374
1375     if (s->connection->version < 12)
1376       return;
1377
1378     t = pa_tagstruct_new(NULL, 0);
1379     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_MOVED);
1380     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
1381     pa_tagstruct_putu32(t, s->index);
1382     pa_tagstruct_putu32(t, o->source->index);
1383     pa_tagstruct_puts(t, o->source->name);
1384     pa_tagstruct_put_boolean(t, pa_source_get_state(o->source) == PA_SOURCE_SUSPENDED);
1385     pa_pstream_send_tagstruct(s->connection->pstream, t);
1386 }
1387
1388 /*** pdispatch callbacks ***/
1389
1390 static void protocol_error(connection *c) {
1391     pa_log("protocol error, kicking client");
1392     connection_unlink(c);
1393 }
1394
1395 #define CHECK_VALIDITY(pstream, expression, tag, error) do { \
1396 if (!(expression)) { \
1397     pa_pstream_send_error((pstream), (tag), (error)); \
1398     return; \
1399 } \
1400 } while(0);
1401
1402 static pa_tagstruct *reply_new(uint32_t tag) {
1403     pa_tagstruct *reply;
1404
1405     reply = pa_tagstruct_new(NULL, 0);
1406     pa_tagstruct_putu32(reply, PA_COMMAND_REPLY);
1407     pa_tagstruct_putu32(reply, tag);
1408     return reply;
1409 }
1410
1411 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) {
1412     connection *c = CONNECTION(userdata);
1413     playback_stream *s;
1414     uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid, missing;
1415     const char *name = NULL, *sink_name;
1416     pa_sample_spec ss;
1417     pa_channel_map map;
1418     pa_tagstruct *reply;
1419     pa_sink *sink = NULL;
1420     pa_cvolume volume;
1421     pa_bool_t
1422         corked = FALSE,
1423         no_remap = FALSE,
1424         no_remix = FALSE,
1425         fix_format = FALSE,
1426         fix_rate = FALSE,
1427         fix_channels = FALSE,
1428         no_move = FALSE,
1429         variable_rate = FALSE,
1430         muted = FALSE,
1431         adjust_latency = FALSE;
1432
1433     pa_sink_input_flags_t flags = 0;
1434     pa_proplist *p;
1435
1436     connection_assert_ref(c);
1437     pa_assert(t);
1438
1439     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1440         pa_tagstruct_get(
1441                 t,
1442                 PA_TAG_SAMPLE_SPEC, &ss,
1443                 PA_TAG_CHANNEL_MAP, &map,
1444                 PA_TAG_U32, &sink_index,
1445                 PA_TAG_STRING, &sink_name,
1446                 PA_TAG_U32, &maxlength,
1447                 PA_TAG_BOOLEAN, &corked,
1448                 PA_TAG_U32, &tlength,
1449                 PA_TAG_U32, &prebuf,
1450                 PA_TAG_U32, &minreq,
1451                 PA_TAG_U32, &syncid,
1452                 PA_TAG_CVOLUME, &volume,
1453                 PA_TAG_INVALID) < 0) {
1454
1455         protocol_error(c);
1456         return;
1457     }
1458
1459     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1460     CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(sink_name)), tag, PA_ERR_INVALID);
1461     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1462     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1463     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
1464     CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID);
1465
1466     p = pa_proplist_new();
1467
1468     if (name)
1469         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1470
1471     if (c->version >= 12)  {
1472         /* Since 0.9.8 the user can ask for a couple of additional flags */
1473
1474         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1475             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1476             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1477             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1478             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1479             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1480             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1481
1482             protocol_error(c);
1483             pa_proplist_free(p);
1484             return;
1485         }
1486     }
1487
1488     if (c->version >= 13) {
1489
1490         if (pa_tagstruct_get_boolean(t, &muted) < 0 ||
1491             pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1492             pa_tagstruct_get_proplist(t, p) < 0) {
1493             protocol_error(c);
1494             pa_proplist_free(p);
1495             return;
1496         }
1497     }
1498
1499     if (!pa_tagstruct_eof(t)) {
1500         protocol_error(c);
1501         pa_proplist_free(p);
1502         return;
1503     }
1504
1505     if (sink_index != PA_INVALID_INDEX) {
1506
1507         if (!(sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index))) {
1508             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1509             pa_proplist_free(p);
1510             return;
1511         }
1512
1513     } else if (sink_name) {
1514
1515         if (!(sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1))) {
1516             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1517             pa_proplist_free(p);
1518             return;
1519         }
1520     }
1521
1522     flags =
1523         (corked ?  PA_SINK_INPUT_START_CORKED : 0) |
1524         (no_remap ?  PA_SINK_INPUT_NO_REMAP : 0) |
1525         (no_remix ?  PA_SINK_INPUT_NO_REMIX : 0) |
1526         (fix_format ?  PA_SINK_INPUT_FIX_FORMAT : 0) |
1527         (fix_rate ?  PA_SINK_INPUT_FIX_RATE : 0) |
1528         (fix_channels ?  PA_SINK_INPUT_FIX_CHANNELS : 0) |
1529         (no_move ?  PA_SINK_INPUT_DONT_MOVE : 0) |
1530         (variable_rate ?  PA_SINK_INPUT_VARIABLE_RATE : 0);
1531
1532     s = playback_stream_new(c, sink, &ss, &map, &maxlength, &tlength, &prebuf, &minreq, &volume, muted, syncid, &missing, flags, p, adjust_latency);
1533     pa_proplist_free(p);
1534
1535     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
1536
1537     reply = reply_new(tag);
1538     pa_tagstruct_putu32(reply, s->index);
1539     pa_assert(s->sink_input);
1540     pa_tagstruct_putu32(reply, s->sink_input->index);
1541     pa_tagstruct_putu32(reply, missing);
1542
1543 /*     pa_log("initial request is %u", missing); */
1544
1545     if (c->version >= 9) {
1546         /* Since 0.9.0 we support sending the buffer metrics back to the client */
1547
1548         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1549         pa_tagstruct_putu32(reply, (uint32_t) tlength);
1550         pa_tagstruct_putu32(reply, (uint32_t) prebuf);
1551         pa_tagstruct_putu32(reply, (uint32_t) minreq);
1552     }
1553
1554     if (c->version >= 12) {
1555         /* Since 0.9.8 we support sending the chosen sample
1556          * spec/channel map/device/suspend status back to the
1557          * client */
1558
1559         pa_tagstruct_put_sample_spec(reply, &ss);
1560         pa_tagstruct_put_channel_map(reply, &map);
1561
1562         pa_tagstruct_putu32(reply, s->sink_input->sink->index);
1563         pa_tagstruct_puts(reply, s->sink_input->sink->name);
1564
1565         pa_tagstruct_put_boolean(reply, pa_sink_get_state(s->sink_input->sink) == PA_SINK_SUSPENDED);
1566     }
1567
1568     if (c->version >= 13)
1569         pa_tagstruct_put_usec(reply, s->sink_latency);
1570
1571     pa_pstream_send_tagstruct(c->pstream, reply);
1572 }
1573
1574 static void command_delete_stream(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1575     connection *c = CONNECTION(userdata);
1576     uint32_t channel;
1577
1578     connection_assert_ref(c);
1579     pa_assert(t);
1580
1581     if (pa_tagstruct_getu32(t, &channel) < 0 ||
1582         !pa_tagstruct_eof(t)) {
1583         protocol_error(c);
1584         return;
1585     }
1586
1587     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1588
1589     switch (command) {
1590
1591         case PA_COMMAND_DELETE_PLAYBACK_STREAM: {
1592             playback_stream *s;
1593             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) {
1594                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1595                 return;
1596             }
1597
1598             playback_stream_unlink(s);
1599             break;
1600         }
1601
1602         case PA_COMMAND_DELETE_RECORD_STREAM: {
1603             record_stream *s;
1604             if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) {
1605                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1606                 return;
1607             }
1608
1609             record_stream_unlink(s);
1610             break;
1611         }
1612
1613         case PA_COMMAND_DELETE_UPLOAD_STREAM: {
1614             upload_stream *s;
1615
1616             if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !upload_stream_isinstance(s)) {
1617                 pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
1618                 return;
1619             }
1620
1621             upload_stream_unlink(s);
1622             break;
1623         }
1624
1625         default:
1626             pa_assert_not_reached();
1627     }
1628
1629     pa_pstream_send_simple_ack(c->pstream, tag);
1630 }
1631
1632 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) {
1633     connection *c = CONNECTION(userdata);
1634     record_stream *s;
1635     uint32_t maxlength, fragment_size;
1636     uint32_t source_index;
1637     const char *name, *source_name;
1638     pa_sample_spec ss;
1639     pa_channel_map map;
1640     pa_tagstruct *reply;
1641     pa_source *source = NULL;
1642     pa_bool_t
1643         corked = FALSE,
1644         no_remap = FALSE,
1645         no_remix = FALSE,
1646         fix_format = FALSE,
1647         fix_rate = FALSE,
1648         fix_channels = FALSE,
1649         no_move = FALSE,
1650         variable_rate = FALSE,
1651         adjust_latency = FALSE;
1652     pa_source_output_flags_t flags = 0;
1653     pa_proplist *p;
1654
1655     connection_assert_ref(c);
1656     pa_assert(t);
1657
1658     if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) ||
1659         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
1660         pa_tagstruct_get_channel_map(t, &map) < 0 ||
1661         pa_tagstruct_getu32(t, &source_index) < 0 ||
1662         pa_tagstruct_gets(t, &source_name) < 0 ||
1663         pa_tagstruct_getu32(t, &maxlength) < 0 ||
1664         pa_tagstruct_get_boolean(t, &corked) < 0 ||
1665         pa_tagstruct_getu32(t, &fragment_size) < 0) {
1666         protocol_error(c);
1667         return;
1668     }
1669
1670     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1671     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
1672     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
1673     CHECK_VALIDITY(c->pstream, source_index != PA_INVALID_INDEX || !source_name || (*source_name && pa_utf8_valid(source_name)), tag, PA_ERR_INVALID);
1674     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
1675
1676     p = pa_proplist_new();
1677
1678     if (name)
1679         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
1680
1681     if (c->version >= 12)  {
1682         /* Since 0.9.8 the user can ask for a couple of additional flags */
1683
1684         if (pa_tagstruct_get_boolean(t, &no_remap) < 0 ||
1685             pa_tagstruct_get_boolean(t, &no_remix) < 0 ||
1686             pa_tagstruct_get_boolean(t, &fix_format) < 0 ||
1687             pa_tagstruct_get_boolean(t, &fix_rate) < 0 ||
1688             pa_tagstruct_get_boolean(t, &fix_channels) < 0 ||
1689             pa_tagstruct_get_boolean(t, &no_move) < 0 ||
1690             pa_tagstruct_get_boolean(t, &variable_rate) < 0) {
1691
1692             protocol_error(c);
1693             pa_proplist_free(p);
1694             return;
1695         }
1696     }
1697
1698     if (c->version >= 13) {
1699
1700         if (pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
1701             pa_tagstruct_get_proplist(t, p) < 0) {
1702             protocol_error(c);
1703             pa_proplist_free(p);
1704             return;
1705         }
1706     }
1707
1708     if (!pa_tagstruct_eof(t)) {
1709         protocol_error(c);
1710         pa_proplist_free(p);
1711         return;
1712     }
1713
1714     if (source_index != PA_INVALID_INDEX) {
1715
1716         if (!(source = pa_idxset_get_by_index(c->protocol->core->sources, source_index))) {
1717             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1718             pa_proplist_free(p);
1719             return;
1720         }
1721
1722     } else if (source_name) {
1723
1724         if (!(source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1))) {
1725             pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1726             pa_proplist_free(p);
1727             return;
1728         }
1729     }
1730
1731     flags =
1732         (corked ?  PA_SOURCE_OUTPUT_START_CORKED : 0) |
1733         (no_remap ?  PA_SOURCE_OUTPUT_NO_REMAP : 0) |
1734         (no_remix ?  PA_SOURCE_OUTPUT_NO_REMIX : 0) |
1735         (fix_format ?  PA_SOURCE_OUTPUT_FIX_FORMAT : 0) |
1736         (fix_rate ?  PA_SOURCE_OUTPUT_FIX_RATE : 0) |
1737         (fix_channels ?  PA_SOURCE_OUTPUT_FIX_CHANNELS : 0) |
1738         (no_move ?  PA_SOURCE_OUTPUT_DONT_MOVE : 0) |
1739         (variable_rate ?  PA_SOURCE_OUTPUT_VARIABLE_RATE : 0);
1740
1741     s = record_stream_new(c, source, &ss, &map, &maxlength, &fragment_size, flags, p, adjust_latency);
1742     pa_proplist_free(p);
1743
1744     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
1745
1746     reply = reply_new(tag);
1747     pa_tagstruct_putu32(reply, s->index);
1748     pa_assert(s->source_output);
1749     pa_tagstruct_putu32(reply, s->source_output->index);
1750
1751     if (c->version >= 9) {
1752         /* Since 0.9 we support sending the buffer metrics back to the client */
1753
1754         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
1755         pa_tagstruct_putu32(reply, (uint32_t) fragment_size);
1756     }
1757
1758     if (c->version >= 12) {
1759         /* Since 0.9.8 we support sending the chosen sample
1760          * spec/channel map/device/suspend status back to the
1761          * client */
1762
1763         pa_tagstruct_put_sample_spec(reply, &ss);
1764         pa_tagstruct_put_channel_map(reply, &map);
1765
1766         pa_tagstruct_putu32(reply, s->source_output->source->index);
1767         pa_tagstruct_puts(reply, s->source_output->source->name);
1768
1769         pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_SUSPENDED);
1770     }
1771
1772     if (c->version >= 13)
1773         pa_tagstruct_put_usec(reply, s->source_latency);
1774
1775     pa_pstream_send_tagstruct(c->pstream, reply);
1776 }
1777
1778 static void command_exit(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1779     connection *c = CONNECTION(userdata);
1780
1781     connection_assert_ref(c);
1782     pa_assert(t);
1783
1784     if (!pa_tagstruct_eof(t)) {
1785         protocol_error(c);
1786         return;
1787     }
1788
1789     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1790
1791     c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0);
1792     pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */
1793 }
1794
1795 static void command_auth(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1796     connection *c = CONNECTION(userdata);
1797     const void*cookie;
1798     pa_tagstruct *reply;
1799     char tmp[16];
1800
1801     connection_assert_ref(c);
1802     pa_assert(t);
1803
1804     if (pa_tagstruct_getu32(t, &c->version) < 0 ||
1805         pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 ||
1806         !pa_tagstruct_eof(t)) {
1807         protocol_error(c);
1808         return;
1809     }
1810
1811     /* Minimum supported version */
1812     if (c->version < 8) {
1813         pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION);
1814         return;
1815     }
1816
1817     pa_snprintf(tmp, sizeof(tmp), "%u", c->version);
1818     pa_proplist_sets(c->client->proplist, "native-protocol.version", tmp);
1819
1820     if (!c->authorized) {
1821         int success = 0;
1822
1823 #ifdef HAVE_CREDS
1824         const pa_creds *creds;
1825
1826         if ((creds = pa_pdispatch_creds(pd))) {
1827             if (creds->uid == getuid())
1828                 success = 1;
1829             else if (c->protocol->auth_group) {
1830                 int r;
1831                 gid_t gid;
1832
1833                 if ((gid = pa_get_gid_of_group(c->protocol->auth_group)) == (gid_t) -1)
1834                     pa_log_warn("failed to get GID of group '%s'", c->protocol->auth_group);
1835                 else if (gid == creds->gid)
1836                     success = 1;
1837                 if (!success) {
1838                     if ((r = pa_uid_in_group(creds->uid, c->protocol->auth_group)) < 0)
1839                         pa_log_warn("failed to check group membership.");
1840                     else if (r > 0)
1841                         success = 1;
1842                 }
1843             }
1844
1845             pa_log_info("Got credentials: uid=%lu gid=%lu success=%i",
1846                         (unsigned long) creds->uid,
1847                         (unsigned long) creds->gid,
1848                         success);
1849
1850             if (c->version >= 10 &&
1851                 pa_mempool_is_shared(c->protocol->core->mempool) &&
1852                 creds->uid == getuid()) {
1853
1854                 pa_pstream_enable_shm(c->pstream, TRUE);
1855                 pa_log_info("Enabled SHM for new connection");
1856             }
1857
1858         }
1859 #endif
1860
1861         if (!success && memcmp(c->protocol->auth_cookie, cookie, PA_NATIVE_COOKIE_LENGTH) == 0)
1862             success = 1;
1863
1864         if (!success) {
1865             pa_log_warn("Denied access to client with invalid authorization data.");
1866             pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS);
1867             return;
1868         }
1869
1870         c->authorized = TRUE;
1871         if (c->auth_timeout_event) {
1872             c->protocol->core->mainloop->time_free(c->auth_timeout_event);
1873             c->auth_timeout_event = NULL;
1874         }
1875     }
1876
1877     reply = reply_new(tag);
1878     pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION);
1879
1880 #ifdef HAVE_CREDS
1881 {
1882     /* SHM support is only enabled after both sides made sure they are the same user. */
1883
1884     pa_creds ucred;
1885
1886     ucred.uid = getuid();
1887     ucred.gid = getgid();
1888
1889     pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred);
1890 }
1891 #else
1892     pa_pstream_send_tagstruct(c->pstream, reply);
1893 #endif
1894 }
1895
1896 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) {
1897     connection *c = CONNECTION(userdata);
1898     const char *name = NULL;
1899     pa_proplist *p;
1900     pa_tagstruct *reply;
1901
1902     connection_assert_ref(c);
1903     pa_assert(t);
1904
1905     p = pa_proplist_new();
1906
1907     if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) ||
1908         (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
1909         !pa_tagstruct_eof(t)) {
1910
1911         protocol_error(c);
1912         pa_proplist_free(p);
1913         return;
1914     }
1915
1916     if (name)
1917         if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) {
1918             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
1919             pa_proplist_free(p);
1920             return;
1921         }
1922
1923     pa_proplist_update(c->client->proplist, PA_UPDATE_REPLACE, p);
1924     pa_proplist_free(p);
1925
1926     pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
1927
1928     reply = reply_new(tag);
1929
1930     if (c->version >= 13)
1931         pa_tagstruct_putu32(reply, c->client->index);
1932
1933     pa_pstream_send_tagstruct(c->pstream, reply);
1934 }
1935
1936 static void command_lookup(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1937     connection *c = CONNECTION(userdata);
1938     const char *name;
1939     uint32_t idx = PA_IDXSET_INVALID;
1940
1941     connection_assert_ref(c);
1942     pa_assert(t);
1943
1944     if (pa_tagstruct_gets(t, &name) < 0 ||
1945         !pa_tagstruct_eof(t)) {
1946         protocol_error(c);
1947         return;
1948     }
1949
1950     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1951     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
1952
1953     if (command == PA_COMMAND_LOOKUP_SINK) {
1954         pa_sink *sink;
1955         if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1)))
1956             idx = sink->index;
1957     } else {
1958         pa_source *source;
1959         pa_assert(command == PA_COMMAND_LOOKUP_SOURCE);
1960         if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1)))
1961             idx = source->index;
1962     }
1963
1964     if (idx == PA_IDXSET_INVALID)
1965         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
1966     else {
1967         pa_tagstruct *reply;
1968         reply = reply_new(tag);
1969         pa_tagstruct_putu32(reply, idx);
1970         pa_pstream_send_tagstruct(c->pstream, reply);
1971     }
1972 }
1973
1974 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) {
1975     connection *c = CONNECTION(userdata);
1976     uint32_t idx;
1977     playback_stream *s;
1978
1979     connection_assert_ref(c);
1980     pa_assert(t);
1981
1982     if (pa_tagstruct_getu32(t, &idx) < 0 ||
1983         !pa_tagstruct_eof(t)) {
1984         protocol_error(c);
1985         return;
1986     }
1987
1988     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
1989     s = pa_idxset_get_by_index(c->output_streams, idx);
1990     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
1991     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
1992
1993     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);
1994 }
1995
1996 static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1997     connection *c = CONNECTION(userdata);
1998     pa_tagstruct *reply;
1999     const pa_mempool_stat *stat;
2000
2001     connection_assert_ref(c);
2002     pa_assert(t);
2003
2004     if (!pa_tagstruct_eof(t)) {
2005         protocol_error(c);
2006         return;
2007     }
2008
2009     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2010
2011     stat = pa_mempool_get_stat(c->protocol->core->mempool);
2012
2013     reply = reply_new(tag);
2014     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated));
2015     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size));
2016     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated));
2017     pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size));
2018     pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
2019     pa_pstream_send_tagstruct(c->pstream, reply);
2020 }
2021
2022 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) {
2023     connection *c = CONNECTION(userdata);
2024     pa_tagstruct *reply;
2025     playback_stream *s;
2026     struct timeval tv, now;
2027     uint32_t idx;
2028     pa_usec_t latency;
2029
2030     connection_assert_ref(c);
2031     pa_assert(t);
2032
2033     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2034         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2035         !pa_tagstruct_eof(t)) {
2036         protocol_error(c);
2037         return;
2038     }
2039
2040     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2041     s = pa_idxset_get_by_index(c->output_streams, idx);
2042     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2043     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2044     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)
2045
2046     reply = reply_new(tag);
2047
2048     latency = pa_sink_get_latency(s->sink_input->sink);
2049     latency += pa_bytes_to_usec(s->render_memblockq_length, &s->sink_input->sample_spec);
2050
2051     pa_tagstruct_put_usec(reply, latency);
2052
2053     pa_tagstruct_put_usec(reply, 0);
2054     pa_tagstruct_put_boolean(reply, pa_sink_input_get_state(s->sink_input) == PA_SINK_INPUT_RUNNING);
2055     pa_tagstruct_put_timeval(reply, &tv);
2056     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2057     pa_tagstruct_puts64(reply, s->write_index);
2058     pa_tagstruct_puts64(reply, s->read_index);
2059     pa_pstream_send_tagstruct(c->pstream, reply);
2060 }
2061
2062 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) {
2063     connection *c = CONNECTION(userdata);
2064     pa_tagstruct *reply;
2065     record_stream *s;
2066     struct timeval tv, now;
2067     uint32_t idx;
2068
2069     connection_assert_ref(c);
2070     pa_assert(t);
2071
2072     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2073         pa_tagstruct_get_timeval(t, &tv) < 0 ||
2074         !pa_tagstruct_eof(t)) {
2075         protocol_error(c);
2076         return;
2077     }
2078
2079     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2080     s = pa_idxset_get_by_index(c->record_streams, idx);
2081     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2082
2083     reply = reply_new(tag);
2084     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
2085     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
2086     pa_tagstruct_put_boolean(reply, FALSE);
2087     pa_tagstruct_put_timeval(reply, &tv);
2088     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
2089     pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
2090     pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq));
2091     pa_pstream_send_tagstruct(c->pstream, reply);
2092 }
2093
2094 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) {
2095     connection *c = CONNECTION(userdata);
2096     upload_stream *s;
2097     uint32_t length;
2098     const char *name = NULL;
2099     pa_sample_spec ss;
2100     pa_channel_map map;
2101     pa_tagstruct *reply;
2102     pa_proplist *p;
2103
2104     connection_assert_ref(c);
2105     pa_assert(t);
2106
2107     if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) ||
2108         pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
2109         pa_tagstruct_get_channel_map(t, &map) < 0 ||
2110         pa_tagstruct_getu32(t, &length) < 0) {
2111         protocol_error(c);
2112         return;
2113     }
2114
2115     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2116     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
2117     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
2118     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
2119     CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID);
2120     CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE);
2121
2122     if (c->version < 13)
2123         CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2124
2125     p = pa_proplist_new();
2126
2127     if (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) {
2128         protocol_error(c);
2129         pa_proplist_free(p);
2130         return;
2131     }
2132
2133     if (c->version < 13)
2134         pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2135
2136     s = upload_stream_new(c, &ss, &map, name, length, p);
2137     pa_proplist_free(p);
2138
2139     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
2140
2141     reply = reply_new(tag);
2142     pa_tagstruct_putu32(reply, s->index);
2143     pa_tagstruct_putu32(reply, length);
2144     pa_pstream_send_tagstruct(c->pstream, reply);
2145 }
2146
2147 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) {
2148     connection *c = CONNECTION(userdata);
2149     uint32_t channel;
2150     upload_stream *s;
2151     uint32_t idx;
2152
2153     connection_assert_ref(c);
2154     pa_assert(t);
2155
2156     if (pa_tagstruct_getu32(t, &channel) < 0 ||
2157         !pa_tagstruct_eof(t)) {
2158         protocol_error(c);
2159         return;
2160     }
2161
2162     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2163
2164     s = pa_idxset_get_by_index(c->output_streams, channel);
2165     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2166     CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2167
2168     if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, s->proplist, &idx) < 0)
2169         pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL);
2170     else
2171         pa_pstream_send_simple_ack(c->pstream, tag);
2172
2173     upload_stream_unlink(s);
2174 }
2175
2176 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) {
2177     connection *c = CONNECTION(userdata);
2178     uint32_t sink_index;
2179     pa_volume_t volume;
2180     pa_sink *sink;
2181     const char *name, *sink_name;
2182     uint32_t idx;
2183     pa_proplist *p;
2184     pa_tagstruct *reply;
2185
2186     connection_assert_ref(c);
2187     pa_assert(t);
2188
2189     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2190
2191     if (pa_tagstruct_getu32(t, &sink_index) < 0 ||
2192         pa_tagstruct_gets(t, &sink_name) < 0 ||
2193         pa_tagstruct_getu32(t, &volume) < 0 ||
2194         pa_tagstruct_gets(t, &name) < 0) {
2195         protocol_error(c);
2196         return;
2197     }
2198
2199     CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2200     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2201
2202     if (sink_index != PA_INVALID_INDEX)
2203         sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index);
2204     else
2205         sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1);
2206
2207     CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
2208
2209     p = pa_proplist_new();
2210
2211     if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) ||
2212         !pa_tagstruct_eof(t)) {
2213         protocol_error(c);
2214         pa_proplist_free(p);
2215         return;
2216     }
2217
2218     if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) {
2219         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2220         pa_proplist_free(p);
2221         return;
2222     }
2223
2224     pa_proplist_free(p);
2225
2226     reply = reply_new(tag);
2227
2228     if (c->version >= 13)
2229         pa_tagstruct_putu32(reply, idx);
2230
2231     pa_pstream_send_tagstruct(c->pstream, reply);
2232 }
2233
2234 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) {
2235     connection *c = CONNECTION(userdata);
2236     const char *name;
2237
2238     connection_assert_ref(c);
2239     pa_assert(t);
2240
2241     if (pa_tagstruct_gets(t, &name) < 0 ||
2242         !pa_tagstruct_eof(t)) {
2243         protocol_error(c);
2244         return;
2245     }
2246
2247     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2248     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
2249
2250     if (pa_scache_remove_item(c->protocol->core, name) < 0) {
2251         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2252         return;
2253     }
2254
2255     pa_pstream_send_simple_ack(c->pstream, tag);
2256 }
2257
2258 static void fixup_sample_spec(connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) {
2259     pa_assert(c);
2260     pa_assert(fixed);
2261     pa_assert(original);
2262
2263     *fixed = *original;
2264
2265     if (c->version < 12) {
2266         /* Before protocol version 12 we didn't support S32 samples,
2267          * so we need to lie about this to the client */
2268
2269         if (fixed->format == PA_SAMPLE_S32LE)
2270             fixed->format = PA_SAMPLE_FLOAT32LE;
2271         if (fixed->format == PA_SAMPLE_S32BE)
2272             fixed->format = PA_SAMPLE_FLOAT32BE;
2273     }
2274 }
2275
2276 static void sink_fill_tagstruct(connection *c, pa_tagstruct *t, pa_sink *sink) {
2277     pa_sample_spec fixed_ss;
2278
2279     pa_assert(t);
2280     pa_sink_assert_ref(sink);
2281
2282     fixup_sample_spec(c, &fixed_ss, &sink->sample_spec);
2283
2284     pa_tagstruct_put(
2285         t,
2286         PA_TAG_U32, sink->index,
2287         PA_TAG_STRING, sink->name,
2288         PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2289         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2290         PA_TAG_CHANNEL_MAP, &sink->channel_map,
2291         PA_TAG_U32, sink->module ? sink->module->index : PA_INVALID_INDEX,
2292         PA_TAG_CVOLUME, pa_sink_get_volume(sink),
2293         PA_TAG_BOOLEAN, pa_sink_get_mute(sink),
2294         PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX,
2295         PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL,
2296         PA_TAG_USEC, pa_sink_get_latency(sink),
2297         PA_TAG_STRING, sink->driver,
2298         PA_TAG_U32, sink->flags,
2299         PA_TAG_INVALID);
2300
2301     if (c->version >= 13) {
2302         pa_tagstruct_put_proplist(t, sink->proplist);
2303         pa_tagstruct_put_usec(t, pa_sink_get_requested_latency(sink));
2304     }
2305 }
2306
2307 static void source_fill_tagstruct(connection *c, pa_tagstruct *t, pa_source *source) {
2308     pa_sample_spec fixed_ss;
2309
2310     pa_assert(t);
2311     pa_source_assert_ref(source);
2312
2313     fixup_sample_spec(c, &fixed_ss, &source->sample_spec);
2314
2315     pa_tagstruct_put(
2316         t,
2317         PA_TAG_U32, source->index,
2318         PA_TAG_STRING, source->name,
2319         PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)),
2320         PA_TAG_SAMPLE_SPEC, &fixed_ss,
2321         PA_TAG_CHANNEL_MAP, &source->channel_map,
2322         PA_TAG_U32, source->module ? source->module->index : PA_INVALID_INDEX,
2323         PA_TAG_CVOLUME, pa_source_get_volume(source),
2324         PA_TAG_BOOLEAN, pa_source_get_mute(source),
2325         PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX,
2326         PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
2327         PA_TAG_USEC, pa_source_get_latency(source),
2328         PA_TAG_STRING, source->driver,
2329         PA_TAG_U32, source->flags,
2330         PA_TAG_INVALID);
2331
2332     if (c->version >= 13) {
2333         pa_tagstruct_put_proplist(t, source->proplist);
2334         pa_tagstruct_put_usec(t, pa_source_get_requested_latency(source));
2335     }
2336 }
2337
2338
2339 static void client_fill_tagstruct(connection *c, pa_tagstruct *t, pa_client *client) {
2340     pa_assert(t);
2341     pa_assert(client);
2342
2343     pa_tagstruct_putu32(t, client->index);
2344     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME)));
2345     pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX);
2346     pa_tagstruct_puts(t, client->driver);
2347
2348     if (c->version >= 13)
2349         pa_tagstruct_put_proplist(t, client->proplist);
2350
2351 }
2352
2353 static void module_fill_tagstruct(pa_tagstruct *t, pa_module *module) {
2354     pa_assert(t);
2355     pa_assert(module);
2356
2357     pa_tagstruct_putu32(t, module->index);
2358     pa_tagstruct_puts(t, module->name);
2359     pa_tagstruct_puts(t, module->argument);
2360     pa_tagstruct_putu32(t, module->n_used);
2361     pa_tagstruct_put_boolean(t, module->auto_unload);
2362 }
2363
2364 static void sink_input_fill_tagstruct(connection *c, pa_tagstruct *t, pa_sink_input *s) {
2365     pa_sample_spec fixed_ss;
2366
2367     pa_assert(t);
2368     pa_sink_input_assert_ref(s);
2369
2370     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2371
2372     pa_tagstruct_putu32(t, s->index);
2373     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2374     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2375     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2376     pa_tagstruct_putu32(t, s->sink->index);
2377     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2378     pa_tagstruct_put_channel_map(t, &s->channel_map);
2379     pa_tagstruct_put_cvolume(t, &s->volume);
2380     pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s));
2381     pa_tagstruct_put_usec(t, pa_sink_get_latency(s->sink));
2382     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s)));
2383     pa_tagstruct_puts(t, s->driver);
2384     if (c->version >= 11)
2385         pa_tagstruct_put_boolean(t, pa_sink_input_get_mute(s));
2386     if (c->version >= 13)
2387         pa_tagstruct_put_proplist(t, s->proplist);
2388 }
2389
2390 static void source_output_fill_tagstruct(connection *c, pa_tagstruct *t, pa_source_output *s) {
2391     pa_sample_spec fixed_ss;
2392
2393     pa_assert(t);
2394     pa_source_output_assert_ref(s);
2395
2396     fixup_sample_spec(c, &fixed_ss, &s->sample_spec);
2397
2398     pa_tagstruct_putu32(t, s->index);
2399     pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)));
2400     pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX);
2401     pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX);
2402     pa_tagstruct_putu32(t, s->source->index);
2403     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2404     pa_tagstruct_put_channel_map(t, &s->channel_map);
2405     pa_tagstruct_put_usec(t, pa_source_output_get_latency(s));
2406     pa_tagstruct_put_usec(t, pa_source_get_latency(s->source));
2407     pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s)));
2408     pa_tagstruct_puts(t, s->driver);
2409
2410     if (c->version >= 13)
2411         pa_tagstruct_put_proplist(t, s->proplist);
2412 }
2413
2414 static void scache_fill_tagstruct(connection *c, pa_tagstruct *t, pa_scache_entry *e) {
2415     pa_sample_spec fixed_ss;
2416
2417     pa_assert(t);
2418     pa_assert(e);
2419
2420     fixup_sample_spec(c, &fixed_ss, &e->sample_spec);
2421
2422     pa_tagstruct_putu32(t, e->index);
2423     pa_tagstruct_puts(t, e->name);
2424     pa_tagstruct_put_cvolume(t, &e->volume);
2425     pa_tagstruct_put_usec(t, pa_bytes_to_usec(e->memchunk.length, &e->sample_spec));
2426     pa_tagstruct_put_sample_spec(t, &fixed_ss);
2427     pa_tagstruct_put_channel_map(t, &e->channel_map);
2428     pa_tagstruct_putu32(t, e->memchunk.length);
2429     pa_tagstruct_put_boolean(t, e->lazy);
2430     pa_tagstruct_puts(t, e->filename);
2431
2432     if (c->version >= 13)
2433         pa_tagstruct_put_proplist(t, e->proplist);
2434 }
2435
2436 static void command_get_info(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2437     connection *c = CONNECTION(userdata);
2438     uint32_t idx;
2439     pa_sink *sink = NULL;
2440     pa_source *source = NULL;
2441     pa_client *client = NULL;
2442     pa_module *module = NULL;
2443     pa_sink_input *si = NULL;
2444     pa_source_output *so = NULL;
2445     pa_scache_entry *sce = NULL;
2446     const char *name;
2447     pa_tagstruct *reply;
2448
2449     connection_assert_ref(c);
2450     pa_assert(t);
2451
2452     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2453         (command != PA_COMMAND_GET_CLIENT_INFO &&
2454          command != PA_COMMAND_GET_MODULE_INFO &&
2455          command != PA_COMMAND_GET_SINK_INPUT_INFO &&
2456          command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO &&
2457          pa_tagstruct_gets(t, &name) < 0) ||
2458         !pa_tagstruct_eof(t)) {
2459         protocol_error(c);
2460         return;
2461     }
2462
2463     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2464     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2465
2466     if (command == PA_COMMAND_GET_SINK_INFO) {
2467         if (idx != PA_INVALID_INDEX)
2468             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2469         else
2470             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2471     } else if (command == PA_COMMAND_GET_SOURCE_INFO) {
2472         if (idx != PA_INVALID_INDEX)
2473             source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2474         else
2475             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2476     } else if (command == PA_COMMAND_GET_CLIENT_INFO)
2477         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
2478     else if (command == PA_COMMAND_GET_MODULE_INFO)
2479         module = pa_idxset_get_by_index(c->protocol->core->modules, idx);
2480     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO)
2481         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2482     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO)
2483         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
2484     else {
2485         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO);
2486         if (idx != PA_INVALID_INDEX)
2487             sce = pa_idxset_get_by_index(c->protocol->core->scache, idx);
2488         else
2489             sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0);
2490     }
2491
2492     if (!sink && !source && !client && !module && !si && !so && !sce) {
2493         pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY);
2494         return;
2495     }
2496
2497     reply = reply_new(tag);
2498     if (sink)
2499         sink_fill_tagstruct(c, reply, sink);
2500     else if (source)
2501         source_fill_tagstruct(c, reply, source);
2502     else if (client)
2503         client_fill_tagstruct(c, reply, client);
2504     else if (module)
2505         module_fill_tagstruct(reply, module);
2506     else if (si)
2507         sink_input_fill_tagstruct(c, reply, si);
2508     else if (so)
2509         source_output_fill_tagstruct(c, reply, so);
2510     else
2511         scache_fill_tagstruct(c, reply, sce);
2512     pa_pstream_send_tagstruct(c->pstream, reply);
2513 }
2514
2515 static void command_get_info_list(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2516     connection *c = CONNECTION(userdata);
2517     pa_idxset *i;
2518     uint32_t idx;
2519     void *p;
2520     pa_tagstruct *reply;
2521
2522     connection_assert_ref(c);
2523     pa_assert(t);
2524
2525     if (!pa_tagstruct_eof(t)) {
2526         protocol_error(c);
2527         return;
2528     }
2529
2530     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2531
2532     reply = reply_new(tag);
2533
2534     if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2535         i = c->protocol->core->sinks;
2536     else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2537         i = c->protocol->core->sources;
2538     else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2539         i = c->protocol->core->clients;
2540     else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2541         i = c->protocol->core->modules;
2542     else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2543         i = c->protocol->core->sink_inputs;
2544     else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2545         i = c->protocol->core->source_outputs;
2546     else {
2547         pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2548         i = c->protocol->core->scache;
2549     }
2550
2551     if (i) {
2552         for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) {
2553             if (command == PA_COMMAND_GET_SINK_INFO_LIST)
2554                 sink_fill_tagstruct(c, reply, p);
2555             else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST)
2556                 source_fill_tagstruct(c, reply, p);
2557             else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST)
2558                 client_fill_tagstruct(c, reply, p);
2559             else if (command == PA_COMMAND_GET_MODULE_INFO_LIST)
2560                 module_fill_tagstruct(reply, p);
2561             else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST)
2562                 sink_input_fill_tagstruct(c, reply, p);
2563             else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST)
2564                 source_output_fill_tagstruct(c, reply, p);
2565             else {
2566                 pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST);
2567                 scache_fill_tagstruct(c, reply, p);
2568             }
2569         }
2570     }
2571
2572     pa_pstream_send_tagstruct(c->pstream, reply);
2573 }
2574
2575 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) {
2576     connection *c = CONNECTION(userdata);
2577     pa_tagstruct *reply;
2578     char txt[256];
2579     const char *n;
2580     pa_sample_spec fixed_ss;
2581
2582     connection_assert_ref(c);
2583     pa_assert(t);
2584
2585     if (!pa_tagstruct_eof(t)) {
2586         protocol_error(c);
2587         return;
2588     }
2589
2590     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2591
2592     reply = reply_new(tag);
2593     pa_tagstruct_puts(reply, PACKAGE_NAME);
2594     pa_tagstruct_puts(reply, PACKAGE_VERSION);
2595     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
2596     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
2597
2598     fixup_sample_spec(c, &fixed_ss, &c->protocol->core->default_sample_spec);
2599     pa_tagstruct_put_sample_spec(reply, &fixed_ss);
2600
2601     n = pa_namereg_get_default_sink_name(c->protocol->core);
2602     pa_tagstruct_puts(reply, n);
2603     n = pa_namereg_get_default_source_name(c->protocol->core);
2604     pa_tagstruct_puts(reply, n);
2605
2606     pa_tagstruct_putu32(reply, c->protocol->core->cookie);
2607
2608     pa_pstream_send_tagstruct(c->pstream, reply);
2609 }
2610
2611 static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) {
2612     pa_tagstruct *t;
2613     connection *c = CONNECTION(userdata);
2614
2615     connection_assert_ref(c);
2616
2617     t = pa_tagstruct_new(NULL, 0);
2618     pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT);
2619     pa_tagstruct_putu32(t, (uint32_t) -1);
2620     pa_tagstruct_putu32(t, e);
2621     pa_tagstruct_putu32(t, idx);
2622     pa_pstream_send_tagstruct(c->pstream, t);
2623 }
2624
2625 static void command_subscribe(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2626     connection *c = CONNECTION(userdata);
2627     pa_subscription_mask_t m;
2628
2629     connection_assert_ref(c);
2630     pa_assert(t);
2631
2632     if (pa_tagstruct_getu32(t, &m) < 0 ||
2633         !pa_tagstruct_eof(t)) {
2634         protocol_error(c);
2635         return;
2636     }
2637
2638     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2639     CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID);
2640
2641     if (c->subscription)
2642         pa_subscription_free(c->subscription);
2643
2644     if (m != 0) {
2645         c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c);
2646         pa_assert(c->subscription);
2647     } else
2648         c->subscription = NULL;
2649
2650     pa_pstream_send_simple_ack(c->pstream, tag);
2651 }
2652
2653 static void command_set_volume(
2654         PA_GCC_UNUSED pa_pdispatch *pd,
2655         uint32_t command,
2656         uint32_t tag,
2657         pa_tagstruct *t,
2658         void *userdata) {
2659
2660     connection *c = CONNECTION(userdata);
2661     uint32_t idx;
2662     pa_cvolume volume;
2663     pa_sink *sink = NULL;
2664     pa_source *source = NULL;
2665     pa_sink_input *si = NULL;
2666     const char *name = NULL;
2667
2668     connection_assert_ref(c);
2669     pa_assert(t);
2670
2671     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2672         (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2673         (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) ||
2674         pa_tagstruct_get_cvolume(t, &volume) ||
2675         !pa_tagstruct_eof(t)) {
2676         protocol_error(c);
2677         return;
2678     }
2679
2680     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2681     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2682     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
2683
2684     switch (command) {
2685
2686         case PA_COMMAND_SET_SINK_VOLUME:
2687             if (idx != PA_INVALID_INDEX)
2688                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2689             else
2690                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2691             break;
2692
2693         case PA_COMMAND_SET_SOURCE_VOLUME:
2694             if (idx != PA_INVALID_INDEX)
2695                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2696             else
2697                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2698             break;
2699
2700         case PA_COMMAND_SET_SINK_INPUT_VOLUME:
2701             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2702             break;
2703
2704         default:
2705             pa_assert_not_reached();
2706     }
2707
2708     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
2709
2710     if (sink)
2711         pa_sink_set_volume(sink, &volume);
2712     else if (source)
2713         pa_source_set_volume(source, &volume);
2714     else if (si)
2715         pa_sink_input_set_volume(si, &volume);
2716
2717     pa_pstream_send_simple_ack(c->pstream, tag);
2718 }
2719
2720 static void command_set_mute(
2721         PA_GCC_UNUSED pa_pdispatch *pd,
2722         uint32_t command,
2723         uint32_t tag,
2724         pa_tagstruct *t,
2725         void *userdata) {
2726
2727     connection *c = CONNECTION(userdata);
2728     uint32_t idx;
2729     pa_bool_t mute;
2730     pa_sink *sink = NULL;
2731     pa_source *source = NULL;
2732     pa_sink_input *si = NULL;
2733     const char *name = NULL;
2734
2735     connection_assert_ref(c);
2736     pa_assert(t);
2737
2738     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2739         (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2740         (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) ||
2741         pa_tagstruct_get_boolean(t, &mute) ||
2742         !pa_tagstruct_eof(t)) {
2743         protocol_error(c);
2744         return;
2745     }
2746
2747     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2748     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
2749
2750     switch (command) {
2751
2752         case PA_COMMAND_SET_SINK_MUTE:
2753
2754             if (idx != PA_INVALID_INDEX)
2755                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
2756             else
2757                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
2758
2759             break;
2760
2761         case PA_COMMAND_SET_SOURCE_MUTE:
2762             if (idx != PA_INVALID_INDEX)
2763                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
2764             else
2765                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
2766
2767             break;
2768
2769         case PA_COMMAND_SET_SINK_INPUT_MUTE:
2770             si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
2771             break;
2772
2773         default:
2774             pa_assert_not_reached();
2775     }
2776
2777     CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY);
2778
2779     if (sink)
2780         pa_sink_set_mute(sink, mute);
2781     else if (source)
2782         pa_source_set_mute(source, mute);
2783     else if (si)
2784         pa_sink_input_set_mute(si, mute);
2785
2786     pa_pstream_send_simple_ack(c->pstream, tag);
2787 }
2788
2789 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) {
2790     connection *c = CONNECTION(userdata);
2791     uint32_t idx;
2792     pa_bool_t b;
2793     playback_stream *s;
2794
2795     connection_assert_ref(c);
2796     pa_assert(t);
2797
2798     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2799         pa_tagstruct_get_boolean(t, &b) < 0 ||
2800         !pa_tagstruct_eof(t)) {
2801         protocol_error(c);
2802         return;
2803     }
2804
2805     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2806     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2807     s = pa_idxset_get_by_index(c->output_streams, idx);
2808     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2809     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2810
2811     pa_sink_input_cork(s->sink_input, b);
2812     pa_pstream_send_simple_ack(c->pstream, tag);
2813 }
2814
2815 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) {
2816     connection *c = CONNECTION(userdata);
2817     uint32_t idx;
2818     playback_stream *s;
2819
2820     connection_assert_ref(c);
2821     pa_assert(t);
2822
2823     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2824         !pa_tagstruct_eof(t)) {
2825         protocol_error(c);
2826         return;
2827     }
2828
2829     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2830     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
2831     s = pa_idxset_get_by_index(c->output_streams, idx);
2832     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2833     CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2834
2835     switch (command) {
2836         case PA_COMMAND_FLUSH_PLAYBACK_STREAM:
2837             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL);
2838             break;
2839
2840         case PA_COMMAND_PREBUF_PLAYBACK_STREAM:
2841             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL);
2842             break;
2843
2844         case PA_COMMAND_TRIGGER_PLAYBACK_STREAM:
2845             pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL);
2846             break;
2847
2848         default:
2849             pa_assert_not_reached();
2850     }
2851
2852     pa_pstream_send_simple_ack(c->pstream, tag);
2853 }
2854
2855 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) {
2856     connection *c = CONNECTION(userdata);
2857     uint32_t idx;
2858     record_stream *s;
2859     pa_bool_t b;
2860
2861     connection_assert_ref(c);
2862     pa_assert(t);
2863
2864     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2865         pa_tagstruct_get_boolean(t, &b) < 0 ||
2866         !pa_tagstruct_eof(t)) {
2867         protocol_error(c);
2868         return;
2869     }
2870
2871     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2872     s = pa_idxset_get_by_index(c->record_streams, idx);
2873     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2874
2875     pa_source_output_cork(s->source_output, b);
2876     pa_memblockq_prebuf_force(s->memblockq);
2877     pa_pstream_send_simple_ack(c->pstream, tag);
2878 }
2879
2880 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) {
2881     connection *c = CONNECTION(userdata);
2882     uint32_t idx;
2883     record_stream *s;
2884
2885     connection_assert_ref(c);
2886     pa_assert(t);
2887
2888     if (pa_tagstruct_getu32(t, &idx) < 0 ||
2889         !pa_tagstruct_eof(t)) {
2890         protocol_error(c);
2891         return;
2892     }
2893
2894     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2895     s = pa_idxset_get_by_index(c->record_streams, idx);
2896     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2897
2898     pa_memblockq_flush(s->memblockq);
2899     pa_pstream_send_simple_ack(c->pstream, tag);
2900 }
2901
2902 static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2903     connection *c = CONNECTION(userdata);
2904     uint32_t idx;
2905     uint32_t maxlength, tlength, prebuf, minreq, fragsize;
2906     pa_tagstruct *reply;
2907
2908     connection_assert_ref(c);
2909     pa_assert(t);
2910
2911     if (pa_tagstruct_getu32(t, &idx) < 0) {
2912         protocol_error(c);
2913         return;
2914     }
2915
2916     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
2917
2918     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR) {
2919         playback_stream *s;
2920
2921         s = pa_idxset_get_by_index(c->output_streams, idx);
2922         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2923         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
2924
2925         if (pa_tagstruct_get(
2926                     t,
2927                     PA_TAG_U32, &maxlength,
2928                     PA_TAG_U32, &tlength,
2929                     PA_TAG_U32, &prebuf,
2930                     PA_TAG_U32, &minreq,
2931                     PA_TAG_INVALID) < 0 ||
2932             !pa_tagstruct_eof(t)) {
2933             protocol_error(c);
2934             return;
2935         }
2936
2937         if (maxlength <= 0 || maxlength > MAX_MEMBLOCKQ_LENGTH)
2938             maxlength = MAX_MEMBLOCKQ_LENGTH;
2939         if (tlength <= 0)
2940             tlength = pa_usec_to_bytes(DEFAULT_TLENGTH_MSEC*1000, &s->sink_input->sample_spec);
2941         if (minreq <= 0)
2942             minreq = (tlength*9)/10;
2943         if (prebuf <= 0)
2944             prebuf = tlength;
2945
2946         pa_memblockq_set_maxlength(s->memblockq, maxlength);
2947         pa_memblockq_set_tlength(s->memblockq, tlength);
2948         pa_memblockq_set_prebuf(s->memblockq, prebuf);
2949         pa_memblockq_set_minreq(s->memblockq, minreq);
2950
2951         reply = reply_new(tag);
2952         pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq));
2953         pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_tlength(s->memblockq));
2954         pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_prebuf(s->memblockq));
2955         pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_minreq(s->memblockq));
2956
2957     } else {
2958         record_stream *s;
2959         size_t base;
2960         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR);
2961
2962         s = pa_idxset_get_by_index(c->record_streams, idx);
2963         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
2964
2965         if (pa_tagstruct_get(
2966                     t,
2967                     PA_TAG_U32, &maxlength,
2968                     PA_TAG_U32, &fragsize,
2969                     PA_TAG_INVALID) < 0 ||
2970             !pa_tagstruct_eof(t)) {
2971             protocol_error(c);
2972             return;
2973         }
2974
2975         if (maxlength <= 0 || maxlength > MAX_MEMBLOCKQ_LENGTH)
2976             maxlength = MAX_MEMBLOCKQ_LENGTH;
2977         if (fragsize <= 0)
2978             fragsize = pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*1000, &s->source_output->sample_spec);
2979
2980         pa_memblockq_set_maxlength(s->memblockq, maxlength);
2981
2982         base = pa_frame_size(&s->source_output->sample_spec);
2983         s->fragment_size = (fragsize/base)*base;
2984         if (s->fragment_size <= 0)
2985             s->fragment_size = base;
2986
2987         if (s->fragment_size > pa_memblockq_get_maxlength(s->memblockq))
2988             s->fragment_size = pa_memblockq_get_maxlength(s->memblockq);
2989
2990         reply = reply_new(tag);
2991         pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq));
2992         pa_tagstruct_putu32(reply, s->fragment_size);
2993     }
2994
2995     pa_pstream_send_tagstruct(c->pstream, reply);
2996 }
2997
2998 static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2999     connection *c = CONNECTION(userdata);
3000     uint32_t idx;
3001     uint32_t rate;
3002
3003     connection_assert_ref(c);
3004     pa_assert(t);
3005
3006     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3007         pa_tagstruct_getu32(t, &rate) < 0 ||
3008         !pa_tagstruct_eof(t)) {
3009         protocol_error(c);
3010         return;
3011     }
3012
3013     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3014     CHECK_VALIDITY(c->pstream, rate > 0 && rate <= PA_RATE_MAX, tag, PA_ERR_INVALID);
3015
3016     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) {
3017         playback_stream *s;
3018
3019         s = pa_idxset_get_by_index(c->output_streams, idx);
3020         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3021         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3022
3023         pa_sink_input_set_rate(s->sink_input, rate);
3024
3025     } else {
3026         record_stream *s;
3027         pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE);
3028
3029         s = pa_idxset_get_by_index(c->record_streams, idx);
3030         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3031
3032         pa_source_output_set_rate(s->source_output, rate);
3033     }
3034
3035     pa_pstream_send_simple_ack(c->pstream, tag);
3036 }
3037
3038 static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3039     connection *c = CONNECTION(userdata);
3040     uint32_t idx;
3041     uint32_t mode;
3042     pa_proplist *p;
3043
3044     connection_assert_ref(c);
3045     pa_assert(t);
3046
3047     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3048
3049     p = pa_proplist_new();
3050
3051     if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) {
3052
3053         if (pa_tagstruct_getu32(t, &mode) < 0 ||
3054             pa_tagstruct_get_proplist(t, p) < 0 ||
3055             !pa_tagstruct_eof(t)) {
3056             protocol_error(c);
3057             pa_proplist_free(p);
3058             return;
3059         }
3060
3061     } else {
3062
3063         if (pa_tagstruct_getu32(t, &idx) < 0 ||
3064             pa_tagstruct_getu32(t, &mode) < 0 ||
3065             pa_tagstruct_get_proplist(t, p) < 0 ||
3066             !pa_tagstruct_eof(t)) {
3067             protocol_error(c);
3068             pa_proplist_free(p);
3069             return;
3070         }
3071     }
3072
3073     CHECK_VALIDITY(c->pstream, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, tag, PA_ERR_INVALID);
3074
3075     if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST) {
3076         playback_stream *s;
3077
3078         s = pa_idxset_get_by_index(c->output_streams, idx);
3079         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3080         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3081
3082         pa_proplist_update(s->sink_input->proplist, mode, p);
3083         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3084
3085     } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) {
3086         record_stream *s;
3087
3088         s = pa_idxset_get_by_index(c->record_streams, idx);
3089         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3090
3091         pa_proplist_update(s->source_output->proplist, mode, p);
3092         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3093     } else {
3094         pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST);
3095
3096         pa_proplist_update(c->client->proplist, mode, p);
3097         pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3098     }
3099
3100     pa_pstream_send_simple_ack(c->pstream, tag);
3101 }
3102
3103 static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3104     connection *c = CONNECTION(userdata);
3105     uint32_t idx;
3106     unsigned changed = 0;
3107     pa_proplist *p;
3108     pa_strlist *l = NULL;
3109
3110     connection_assert_ref(c);
3111     pa_assert(t);
3112
3113     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3114
3115     if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) {
3116
3117         if (pa_tagstruct_getu32(t, &idx) < 0) {
3118             protocol_error(c);
3119             return;
3120         }
3121     }
3122
3123     if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3124         playback_stream *s;
3125
3126         s = pa_idxset_get_by_index(c->output_streams, idx);
3127         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3128         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3129
3130         p = s->sink_input->proplist;
3131
3132     } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3133         record_stream *s;
3134
3135         s = pa_idxset_get_by_index(c->record_streams, idx);
3136         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3137
3138         p = s->source_output->proplist;
3139     } else {
3140         pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3141
3142         p = c->client->proplist;
3143     }
3144
3145     for (;;) {
3146         const char *k;
3147
3148         if (pa_tagstruct_gets(t, &k) < 0) {
3149             protocol_error(c);
3150             pa_strlist_free(l);
3151             return;
3152         }
3153
3154         if (!k)
3155             break;
3156
3157         l = pa_strlist_prepend(l, k);
3158     }
3159
3160     if (!pa_tagstruct_eof(t)) {
3161         protocol_error(c);
3162         pa_strlist_free(l);
3163         return;
3164     }
3165
3166     for (;;) {
3167         char *z;
3168
3169         l = pa_strlist_pop(l, &z);
3170
3171         if (!z)
3172             break;
3173
3174         changed += pa_proplist_unset(p, z) >= 0;
3175         pa_xfree(z);
3176     }
3177
3178     pa_pstream_send_simple_ack(c->pstream, tag);
3179
3180     if (changed) {
3181         if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) {
3182             playback_stream *s;
3183
3184             s = pa_idxset_get_by_index(c->output_streams, idx);
3185             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index);
3186
3187         } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) {
3188             record_stream *s;
3189
3190             s = pa_idxset_get_by_index(c->record_streams, idx);
3191             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index);
3192
3193         } else {
3194             pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST);
3195             pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index);
3196         }
3197     }
3198 }
3199
3200 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) {
3201     connection *c = CONNECTION(userdata);
3202     const char *s;
3203
3204     connection_assert_ref(c);
3205     pa_assert(t);
3206
3207     if (pa_tagstruct_gets(t, &s) < 0 ||
3208         !pa_tagstruct_eof(t)) {
3209         protocol_error(c);
3210         return;
3211     }
3212
3213     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3214     CHECK_VALIDITY(c->pstream, !s || (*s && pa_utf8_valid(s)), tag, PA_ERR_INVALID);
3215
3216     pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
3217     pa_pstream_send_simple_ack(c->pstream, tag);
3218 }
3219
3220 static void command_set_stream_name(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3221     connection *c = CONNECTION(userdata);
3222     uint32_t idx;
3223     const char *name;
3224
3225     connection_assert_ref(c);
3226     pa_assert(t);
3227
3228     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3229         pa_tagstruct_gets(t, &name) < 0 ||
3230         !pa_tagstruct_eof(t)) {
3231         protocol_error(c);
3232         return;
3233     }
3234
3235     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3236     CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3237
3238     if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) {
3239         playback_stream *s;
3240
3241         s = pa_idxset_get_by_index(c->output_streams, idx);
3242         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3243         CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY);
3244
3245         pa_sink_input_set_name(s->sink_input, name);
3246
3247     } else {
3248         record_stream *s;
3249         pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_NAME);
3250
3251         s = pa_idxset_get_by_index(c->record_streams, idx);
3252         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3253
3254         pa_source_output_set_name(s->source_output, name);
3255     }
3256
3257     pa_pstream_send_simple_ack(c->pstream, tag);
3258 }
3259
3260 static void command_kill(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3261     connection *c = CONNECTION(userdata);
3262     uint32_t idx;
3263
3264     connection_assert_ref(c);
3265     pa_assert(t);
3266
3267     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3268         !pa_tagstruct_eof(t)) {
3269         protocol_error(c);
3270         return;
3271     }
3272
3273     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3274
3275     if (command == PA_COMMAND_KILL_CLIENT) {
3276         pa_client *client;
3277
3278         client = pa_idxset_get_by_index(c->protocol->core->clients, idx);
3279         CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY);
3280
3281         connection_ref(c);
3282         pa_client_kill(client);
3283
3284     } else if (command == PA_COMMAND_KILL_SINK_INPUT) {
3285         pa_sink_input *s;
3286
3287         s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3288         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3289
3290         connection_ref(c);
3291         pa_sink_input_kill(s);
3292     } else {
3293         pa_source_output *s;
3294
3295         pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT);
3296
3297         s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3298         CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY);
3299
3300         connection_ref(c);
3301         pa_source_output_kill(s);
3302     }
3303
3304     pa_pstream_send_simple_ack(c->pstream, tag);
3305     connection_unref(c);
3306 }
3307
3308 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) {
3309     connection *c = CONNECTION(userdata);
3310     pa_module *m;
3311     const char *name, *argument;
3312     pa_tagstruct *reply;
3313
3314     connection_assert_ref(c);
3315     pa_assert(t);
3316
3317     if (pa_tagstruct_gets(t, &name) < 0 ||
3318         pa_tagstruct_gets(t, &argument) < 0 ||
3319         !pa_tagstruct_eof(t)) {
3320         protocol_error(c);
3321         return;
3322     }
3323
3324     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3325     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID);
3326     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3327
3328     if (!(m = pa_module_load(c->protocol->core, name, argument))) {
3329         pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED);
3330         return;
3331     }
3332
3333     reply = reply_new(tag);
3334     pa_tagstruct_putu32(reply, m->index);
3335     pa_pstream_send_tagstruct(c->pstream, reply);
3336 }
3337
3338 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) {
3339     connection *c = CONNECTION(userdata);
3340     uint32_t idx;
3341     pa_module *m;
3342
3343     connection_assert_ref(c);
3344     pa_assert(t);
3345
3346     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3347         !pa_tagstruct_eof(t)) {
3348         protocol_error(c);
3349         return;
3350     }
3351
3352     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3353     m = pa_idxset_get_by_index(c->protocol->core->modules, idx);
3354     CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY);
3355
3356     pa_module_unload_request(m);
3357     pa_pstream_send_simple_ack(c->pstream, tag);
3358 }
3359
3360 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) {
3361     connection *c = CONNECTION(userdata);
3362     const char *name, *module, *argument;
3363     uint32_t type;
3364     uint32_t idx;
3365     pa_tagstruct *reply;
3366
3367     connection_assert_ref(c);
3368     pa_assert(t);
3369
3370     if (pa_tagstruct_gets(t, &name) < 0 ||
3371         pa_tagstruct_getu32(t, &type) < 0 ||
3372         pa_tagstruct_gets(t, &module) < 0 ||
3373         pa_tagstruct_gets(t, &argument) < 0 ||
3374         !pa_tagstruct_eof(t)) {
3375         protocol_error(c);
3376         return;
3377     }
3378
3379     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3380     CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID);
3381     CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID);
3382     CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID);
3383     CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID);
3384
3385     if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) {
3386         pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST);
3387         return;
3388     }
3389
3390     reply = reply_new(tag);
3391     pa_tagstruct_putu32(reply, idx);
3392     pa_pstream_send_tagstruct(c->pstream, reply);
3393 }
3394
3395 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) {
3396     connection *c = CONNECTION(userdata);
3397     const char *name = NULL;
3398     uint32_t type, idx = PA_IDXSET_INVALID;
3399     int r;
3400
3401     connection_assert_ref(c);
3402     pa_assert(t);
3403
3404     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3405         (pa_tagstruct_gets(t, &name) < 0 ||
3406          pa_tagstruct_getu32(t, &type) < 0)) ||
3407         !pa_tagstruct_eof(t)) {
3408         protocol_error(c);
3409         return;
3410     }
3411
3412     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3413     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3414     CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID);
3415
3416     if (name)
3417         r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3418     else
3419         r = pa_autoload_remove_by_index(c->protocol->core, idx);
3420
3421     CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY);
3422
3423     pa_pstream_send_simple_ack(c->pstream, tag);
3424 }
3425
3426 static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) {
3427     pa_assert(t && e);
3428
3429     pa_tagstruct_putu32(t, e->index);
3430     pa_tagstruct_puts(t, e->name);
3431     pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1);
3432     pa_tagstruct_puts(t, e->module);
3433     pa_tagstruct_puts(t, e->argument);
3434 }
3435
3436 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) {
3437     connection *c = CONNECTION(userdata);
3438     const pa_autoload_entry *a = NULL;
3439     uint32_t type, idx;
3440     const char *name;
3441     pa_tagstruct *reply;
3442
3443     connection_assert_ref(c);
3444     pa_assert(t);
3445
3446     if ((pa_tagstruct_getu32(t, &idx) < 0 &&
3447         (pa_tagstruct_gets(t, &name) < 0 ||
3448          pa_tagstruct_getu32(t, &type) < 0)) ||
3449         !pa_tagstruct_eof(t)) {
3450         protocol_error(c);
3451         return;
3452     }
3453
3454     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3455     CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID);
3456     CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
3457
3458     if (name)
3459         a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE);
3460     else
3461         a = pa_autoload_get_by_index(c->protocol->core, idx);
3462
3463     CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY);
3464
3465     reply = reply_new(tag);
3466     autoload_fill_tagstruct(reply, a);
3467     pa_pstream_send_tagstruct(c->pstream, reply);
3468 }
3469
3470 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) {
3471     connection *c = CONNECTION(userdata);
3472     pa_tagstruct *reply;
3473
3474     connection_assert_ref(c);
3475     pa_assert(t);
3476
3477     if (!pa_tagstruct_eof(t)) {
3478         protocol_error(c);
3479         return;
3480     }
3481
3482     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3483
3484     reply = reply_new(tag);
3485
3486     if (c->protocol->core->autoload_hashmap) {
3487         pa_autoload_entry *a;
3488         void *state = NULL;
3489
3490         while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL)))
3491             autoload_fill_tagstruct(reply, a);
3492     }
3493
3494     pa_pstream_send_tagstruct(c->pstream, reply);
3495 }
3496
3497 static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3498     connection *c = CONNECTION(userdata);
3499     uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX;
3500     const char *name = NULL;
3501
3502     connection_assert_ref(c);
3503     pa_assert(t);
3504
3505     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3506         pa_tagstruct_getu32(t, &idx_device) < 0 ||
3507         pa_tagstruct_gets(t, &name) < 0 ||
3508         !pa_tagstruct_eof(t)) {
3509         protocol_error(c);
3510         return;
3511     }
3512
3513     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3514     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID);
3515     CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID);
3516
3517     if (command == PA_COMMAND_MOVE_SINK_INPUT) {
3518         pa_sink_input *si = NULL;
3519         pa_sink *sink = NULL;
3520
3521         si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx);
3522
3523         if (idx_device != PA_INVALID_INDEX)
3524             sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device);
3525         else
3526             sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3527
3528         CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY);
3529
3530         if (pa_sink_input_move_to(si, sink, 0) < 0) {
3531             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3532             return;
3533         }
3534     } else {
3535         pa_source_output *so = NULL;
3536         pa_source *source;
3537
3538         pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT);
3539
3540         so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx);
3541
3542         if (idx_device != PA_INVALID_INDEX)
3543             source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device);
3544         else
3545             source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3546
3547         CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY);
3548
3549         if (pa_source_output_move_to(so, source) < 0) {
3550             pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3551             return;
3552         }
3553     }
3554
3555     pa_pstream_send_simple_ack(c->pstream, tag);
3556 }
3557
3558 static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
3559     connection *c = CONNECTION(userdata);
3560     uint32_t idx = PA_INVALID_INDEX;
3561     const char *name = NULL;
3562     pa_bool_t b;
3563
3564     connection_assert_ref(c);
3565     pa_assert(t);
3566
3567     if (pa_tagstruct_getu32(t, &idx) < 0 ||
3568         pa_tagstruct_gets(t, &name) < 0 ||
3569         pa_tagstruct_get_boolean(t, &b) < 0 ||
3570         !pa_tagstruct_eof(t)) {
3571         protocol_error(c);
3572         return;
3573     }
3574
3575     CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
3576     CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || !*name || pa_utf8_valid(name), tag, PA_ERR_INVALID);
3577
3578     if (command == PA_COMMAND_SUSPEND_SINK) {
3579
3580         if (idx == PA_INVALID_INDEX && name && !*name) {
3581
3582             if (pa_sink_suspend_all(c->protocol->core, b) < 0) {
3583                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3584                 return;
3585             }
3586         } else {
3587             pa_sink *sink = NULL;
3588
3589             if (idx != PA_INVALID_INDEX)
3590                 sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx);
3591             else
3592                 sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1);
3593
3594             CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
3595
3596             if (pa_sink_suspend(sink, b) < 0) {
3597                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3598                 return;
3599             }
3600         }
3601     } else {
3602
3603         pa_assert(command == PA_COMMAND_SUSPEND_SOURCE);
3604
3605         if (idx == PA_INVALID_INDEX && name && !*name) {
3606
3607             if (pa_source_suspend_all(c->protocol->core, b) < 0) {
3608                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3609                 return;
3610             }
3611
3612         } else {
3613             pa_source *source;
3614
3615             if (idx != PA_INVALID_INDEX)
3616                 source = pa_idxset_get_by_index(c->protocol->core->sources, idx);
3617             else
3618                 source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1);
3619
3620             CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
3621
3622             if (pa_source_suspend(source, b) < 0) {
3623                 pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID);
3624                 return;
3625             }
3626         }
3627     }
3628
3629     pa_pstream_send_simple_ack(c->pstream, tag);
3630 }
3631
3632 /*** pstream callbacks ***/
3633
3634 static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) {
3635     connection *c = CONNECTION(userdata);
3636
3637     pa_assert(p);
3638     pa_assert(packet);
3639     connection_assert_ref(c);
3640
3641     if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) {
3642         pa_log("invalid packet.");
3643         connection_unlink(c);
3644     }
3645 }
3646
3647 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) {
3648     connection *c = CONNECTION(userdata);
3649     output_stream *stream;
3650
3651     pa_assert(p);
3652     pa_assert(chunk);
3653     connection_assert_ref(c);
3654
3655     if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) {
3656         pa_log("client sent block for invalid stream.");
3657         /* Ignoring */
3658         return;
3659     }
3660
3661     if (playback_stream_isinstance(stream)) {
3662         playback_stream *ps = PLAYBACK_STREAM(stream);
3663
3664         if (seek != PA_SEEK_RELATIVE || offset != 0)
3665             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);
3666
3667         pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL);
3668
3669     } else {
3670         upload_stream *u = UPLOAD_STREAM(stream);
3671         size_t l;
3672
3673         if (!u->memchunk.memblock) {
3674             if (u->length == chunk->length) {
3675                 u->memchunk = *chunk;
3676                 pa_memblock_ref(u->memchunk.memblock);
3677                 u->length = 0;
3678             } else {
3679                 u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length);
3680                 u->memchunk.index = u->memchunk.length = 0;
3681             }
3682         }
3683
3684         pa_assert(u->memchunk.memblock);
3685
3686         l = u->length;
3687         if (l > chunk->length)
3688             l = chunk->length;
3689
3690
3691         if (l > 0) {
3692             void *src, *dst;
3693             dst = pa_memblock_acquire(u->memchunk.memblock);
3694             src = pa_memblock_acquire(chunk->memblock);
3695
3696             memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length,
3697                    (uint8_t*) src+chunk->index, l);
3698
3699             pa_memblock_release(u->memchunk.memblock);
3700             pa_memblock_release(chunk->memblock);
3701
3702             u->memchunk.length += l;
3703             u->length -= l;
3704         }
3705     }
3706 }
3707
3708 static void pstream_die_callback(pa_pstream *p, void *userdata) {
3709     connection *c = CONNECTION(userdata);
3710
3711     pa_assert(p);
3712     connection_assert_ref(c);
3713
3714     connection_unlink(c);
3715     pa_log_info("connection died.");
3716 }
3717
3718 static void pstream_drain_callback(pa_pstream *p, void *userdata) {
3719     connection *c = CONNECTION(userdata);
3720
3721     pa_assert(p);
3722     connection_assert_ref(c);
3723
3724     send_memblock(c);
3725 }
3726
3727 static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
3728     pa_thread_mq *q;
3729
3730     if (!(q = pa_thread_mq_get()))
3731         pa_pstream_send_revoke(p, block_id);
3732     else
3733         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
3734 }
3735
3736 static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) {
3737     pa_thread_mq *q;
3738
3739     if (!(q = pa_thread_mq_get()))
3740         pa_pstream_send_release(p, block_id);
3741     else
3742         pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
3743 }
3744
3745 /*** client callbacks ***/
3746
3747 static void client_kill_cb(pa_client *c) {
3748     pa_assert(c);
3749
3750     connection_unlink(CONNECTION(c->userdata));
3751 }
3752
3753 /*** socket server callbacks ***/
3754
3755 static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) {
3756     connection *c = CONNECTION(userdata);
3757
3758     pa_assert(m);
3759     pa_assert(tv);
3760     connection_assert_ref(c);
3761     pa_assert(c->auth_timeout_event == e);
3762
3763     if (!c->authorized)
3764         connection_unlink(c);
3765 }
3766
3767 static void on_connection(PA_GCC_UNUSED pa_socket_server*s, pa_iochannel *io, void *userdata) {
3768     pa_protocol_native *p = userdata;
3769     connection *c;
3770     char cname[256], pname[128];
3771
3772     pa_assert(s);
3773     pa_assert(io);
3774     pa_assert(p);
3775
3776     if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
3777         pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
3778         pa_iochannel_free(io);
3779         return;
3780     }
3781
3782     c = pa_msgobject_new(connection);
3783     c->parent.parent.free = connection_free;
3784     c->parent.process_msg = connection_process_msg;
3785
3786     c->authorized = p->public;
3787
3788     if (!c->authorized && p->auth_ip_acl && pa_ip_acl_check(p->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) {
3789         pa_log_info("Client authenticated by IP ACL.");
3790         c->authorized = TRUE;
3791     }
3792
3793     if (!c->authorized) {
3794         struct timeval tv;
3795         pa_gettimeofday(&tv);
3796         tv.tv_sec += AUTH_TIMEOUT;
3797         c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
3798     } else
3799         c->auth_timeout_event = NULL;
3800
3801     c->version = 8;
3802     c->protocol = p;
3803     pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
3804     pa_snprintf(cname, sizeof(cname), "Native client (%s)", pname);
3805     c->client = pa_client_new(p->core, __FILE__, cname);
3806     c->client->kill = client_kill_cb;
3807     c->client->userdata = c;
3808     c->client->module = p->module;
3809
3810     c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool);
3811
3812     pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c);
3813     pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c);
3814     pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c);
3815     pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c);
3816     pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c);
3817     pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c);
3818
3819     c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX);
3820
3821     c->record_streams = pa_idxset_new(NULL, NULL);
3822     c->output_streams = pa_idxset_new(NULL, NULL);
3823
3824     c->rrobin_index = PA_IDXSET_INVALID;
3825     c->subscription = NULL;
3826
3827     pa_idxset_put(p->connections, c, NULL);
3828
3829 #ifdef HAVE_CREDS
3830     if (pa_iochannel_creds_supported(io))
3831         pa_iochannel_creds_enable(io);
3832
3833 #endif
3834 }
3835
3836 /*** module entry points ***/
3837
3838 static int load_key(pa_protocol_native*p, const char*fn) {
3839     pa_assert(p);
3840
3841     p->auth_cookie_in_property = FALSE;
3842
3843     if (!fn && pa_authkey_prop_get(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) {
3844         pa_log_info("using already loaded auth cookie.");
3845         pa_authkey_prop_ref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME);
3846         p->auth_cookie_in_property = TRUE;
3847         return 0;
3848     }
3849
3850     if (!fn)
3851         fn = PA_NATIVE_COOKIE_FILE;
3852
3853     if (pa_authkey_load_auto(fn, p->auth_cookie, sizeof(p->auth_cookie)) < 0)
3854         return -1;
3855
3856     pa_log_info("loading cookie from disk.");
3857
3858     if (pa_authkey_prop_put(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0)
3859         p->auth_cookie_in_property = TRUE;
3860
3861     return 0;
3862 }
3863
3864 static pa_protocol_native* protocol_new_internal(pa_core *c, pa_module *m, pa_modargs *ma) {
3865     pa_protocol_native *p;
3866     pa_bool_t public = FALSE;
3867     const char *acl;
3868
3869     pa_assert(c);
3870     pa_assert(ma);
3871
3872     if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &public) < 0) {
3873         pa_log("auth-anonymous= expects a boolean argument.");
3874         return NULL;
3875     }
3876
3877     p = pa_xnew(pa_protocol_native, 1);
3878     p->core = c;
3879     p->module = m;
3880     p->public = public;
3881     p->server = NULL;
3882     p->auth_ip_acl = NULL;
3883
3884 #ifdef HAVE_CREDS
3885     {
3886         pa_bool_t a = 1;
3887         if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &a) < 0) {
3888             pa_log("auth-group-enabled= expects a boolean argument.");
3889             return NULL;
3890         }
3891         p->auth_group = a ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", c->is_system_instance ? PA_ACCESS_GROUP : NULL)) : NULL;
3892
3893         if (p->auth_group)
3894             pa_log_info("Allowing access to group '%s'.", p->auth_group);
3895     }
3896 #endif
3897
3898
3899     if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) {
3900
3901         if (!(p->auth_ip_acl = pa_ip_acl_new(acl))) {
3902             pa_log("Failed to parse IP ACL '%s'", acl);
3903             goto fail;
3904         }
3905     }
3906
3907     if (load_key(p, pa_modargs_get_value(ma, "cookie", NULL)) < 0)
3908         goto fail;
3909
3910     p->connections = pa_idxset_new(NULL, NULL);
3911
3912     return p;
3913
3914 fail:
3915 #ifdef HAVE_CREDS
3916     pa_xfree(p->auth_group);
3917 #endif
3918     if (p->auth_ip_acl)
3919         pa_ip_acl_free(p->auth_ip_acl);
3920     pa_xfree(p);
3921     return NULL;
3922 }
3923
3924 pa_protocol_native* pa_protocol_native_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma) {
3925     char t[256];
3926     pa_protocol_native *p;
3927
3928     if (!(p = protocol_new_internal(core, m, ma)))
3929         return NULL;
3930
3931     p->server = server;
3932     pa_socket_server_set_callback(p->server, on_connection, p);
3933
3934     if (pa_socket_server_get_address(p->server, t, sizeof(t))) {
3935         pa_strlist *l;
3936         l = pa_property_get(core, PA_NATIVE_SERVER_PROPERTY_NAME);
3937         l = pa_strlist_prepend(l, t);
3938         pa_property_replace(core, PA_NATIVE_SERVER_PROPERTY_NAME, l);
3939     }
3940
3941     return p;
3942 }
3943
3944 void pa_protocol_native_free(pa_protocol_native *p) {
3945     connection *c;
3946     pa_assert(p);
3947
3948     while ((c = pa_idxset_first(p->connections, NULL)))
3949         connection_unlink(c);
3950     pa_idxset_free(p->connections, NULL, NULL);
3951
3952     if (p->server) {
3953         char t[256];
3954
3955         if (pa_socket_server_get_address(p->server, t, sizeof(t))) {
3956             pa_strlist *l;
3957             l = pa_property_get(p->core, PA_NATIVE_SERVER_PROPERTY_NAME);
3958             l = pa_strlist_remove(l, t);
3959
3960             if (l)
3961                 pa_property_replace(p->core, PA_NATIVE_SERVER_PROPERTY_NAME, l);
3962             else
3963                 pa_property_remove(p->core, PA_NATIVE_SERVER_PROPERTY_NAME);
3964         }
3965
3966         pa_socket_server_unref(p->server);
3967     }
3968
3969     if (p->auth_cookie_in_property)
3970         pa_authkey_prop_unref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME);
3971
3972     if (p->auth_ip_acl)
3973         pa_ip_acl_free(p->auth_ip_acl);
3974
3975 #ifdef HAVE_CREDS
3976     pa_xfree(p->auth_group);
3977 #endif
3978     pa_xfree(p);
3979 }
3980
3981 pa_protocol_native* pa_protocol_native_new_iochannel(
3982         pa_core*core,
3983         pa_iochannel *io,
3984         pa_module *m,
3985         pa_modargs *ma) {
3986
3987     pa_protocol_native *p;
3988
3989     if (!(p = protocol_new_internal(core, m, ma)))
3990         return NULL;
3991
3992     on_connection(NULL, io, p);
3993
3994     return p;
3995 }