/* $Id$ */ /*** This file is part of PulseAudio. Copyright 2004-2006 Lennart Poettering Copyright 2006 Pierre Ossman for Cendio AB PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. ***/ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "protocol-native.h" /* Kick a client if it doesn't authenticate within this time */ #define AUTH_TIMEOUT 60 /* Don't accept more connection than this */ #define MAX_CONNECTIONS 64 #define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */ struct connection; struct pa_protocol_native; struct record_stream { struct connection *connection; uint32_t index; pa_source_output *source_output; pa_memblockq *memblockq; size_t fragment_size; }; struct playback_stream { int type; struct connection *connection; uint32_t index; pa_sink_input *sink_input; pa_memblockq *memblockq; size_t requested_bytes; int drain_request; uint32_t drain_tag; uint32_t syncid; int underrun; /* Sync group members */ PA_LLIST_FIELDS(struct playback_stream); }; struct upload_stream { int type; struct connection *connection; uint32_t index; pa_memchunk memchunk; size_t length; char *name; pa_sample_spec sample_spec; pa_channel_map channel_map; }; struct output_stream { int type; }; enum { UPLOAD_STREAM, PLAYBACK_STREAM }; struct connection { int authorized; uint32_t version; pa_protocol_native *protocol; pa_client *client; pa_pstream *pstream; pa_pdispatch *pdispatch; pa_idxset *record_streams, *output_streams; uint32_t rrobin_index; pa_subscription *subscription; pa_time_event *auth_timeout_event; }; struct pa_protocol_native { pa_module *module; int public; pa_core *core; pa_socket_server *server; pa_idxset *connections; uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH]; int auth_cookie_in_property; #ifdef HAVE_CREDS char *auth_group; #endif pa_ip_acl *auth_ip_acl; }; static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk); static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length); static void sink_input_kill_cb(pa_sink_input *i); static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i); static void request_bytes(struct playback_stream*s); static void source_output_kill_cb(pa_source_output *o); static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk); static pa_usec_t source_output_get_latency_cb(pa_source_output *o); static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_set_volume(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_set_mute(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_flush_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_trigger_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_remove_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_get_autoload_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = { [PA_COMMAND_ERROR] = NULL, [PA_COMMAND_TIMEOUT] = NULL, [PA_COMMAND_REPLY] = NULL, [PA_COMMAND_CREATE_PLAYBACK_STREAM] = command_create_playback_stream, [PA_COMMAND_DELETE_PLAYBACK_STREAM] = command_delete_stream, [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = command_drain_playback_stream, [PA_COMMAND_CREATE_RECORD_STREAM] = command_create_record_stream, [PA_COMMAND_DELETE_RECORD_STREAM] = command_delete_stream, [PA_COMMAND_AUTH] = command_auth, [PA_COMMAND_REQUEST] = NULL, [PA_COMMAND_EXIT] = command_exit, [PA_COMMAND_SET_CLIENT_NAME] = command_set_client_name, [PA_COMMAND_LOOKUP_SINK] = command_lookup, [PA_COMMAND_LOOKUP_SOURCE] = command_lookup, [PA_COMMAND_STAT] = command_stat, [PA_COMMAND_GET_PLAYBACK_LATENCY] = command_get_playback_latency, [PA_COMMAND_GET_RECORD_LATENCY] = command_get_record_latency, [PA_COMMAND_CREATE_UPLOAD_STREAM] = command_create_upload_stream, [PA_COMMAND_DELETE_UPLOAD_STREAM] = command_delete_stream, [PA_COMMAND_FINISH_UPLOAD_STREAM] = command_finish_upload_stream, [PA_COMMAND_PLAY_SAMPLE] = command_play_sample, [PA_COMMAND_REMOVE_SAMPLE] = command_remove_sample, [PA_COMMAND_GET_SINK_INFO] = command_get_info, [PA_COMMAND_GET_SOURCE_INFO] = command_get_info, [PA_COMMAND_GET_CLIENT_INFO] = command_get_info, [PA_COMMAND_GET_MODULE_INFO] = command_get_info, [PA_COMMAND_GET_SINK_INPUT_INFO] = command_get_info, [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = command_get_info, [PA_COMMAND_GET_SAMPLE_INFO] = command_get_info, [PA_COMMAND_GET_SINK_INFO_LIST] = command_get_info_list, [PA_COMMAND_GET_SOURCE_INFO_LIST] = command_get_info_list, [PA_COMMAND_GET_MODULE_INFO_LIST] = command_get_info_list, [PA_COMMAND_GET_CLIENT_INFO_LIST] = command_get_info_list, [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = command_get_info_list, [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = command_get_info_list, [PA_COMMAND_GET_SAMPLE_INFO_LIST] = command_get_info_list, [PA_COMMAND_GET_SERVER_INFO] = command_get_server_info, [PA_COMMAND_SUBSCRIBE] = command_subscribe, [PA_COMMAND_SET_SINK_VOLUME] = command_set_volume, [PA_COMMAND_SET_SINK_INPUT_VOLUME] = command_set_volume, [PA_COMMAND_SET_SOURCE_VOLUME] = command_set_volume, [PA_COMMAND_SET_SINK_MUTE] = command_set_mute, [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute, [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream, [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_flush_playback_stream, [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_prebuf_playback_stream, [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_prebuf_playback_stream, [PA_COMMAND_CORK_RECORD_STREAM] = command_cork_record_stream, [PA_COMMAND_FLUSH_RECORD_STREAM] = command_flush_record_stream, [PA_COMMAND_SET_DEFAULT_SINK] = command_set_default_sink_or_source, [PA_COMMAND_SET_DEFAULT_SOURCE] = command_set_default_sink_or_source, [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = command_set_stream_name, [PA_COMMAND_SET_RECORD_STREAM_NAME] = command_set_stream_name, [PA_COMMAND_KILL_CLIENT] = command_kill, [PA_COMMAND_KILL_SINK_INPUT] = command_kill, [PA_COMMAND_KILL_SOURCE_OUTPUT] = command_kill, [PA_COMMAND_LOAD_MODULE] = command_load_module, [PA_COMMAND_UNLOAD_MODULE] = command_unload_module, [PA_COMMAND_GET_AUTOLOAD_INFO] = command_get_autoload_info, [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = command_get_autoload_info_list, [PA_COMMAND_ADD_AUTOLOAD] = command_add_autoload, [PA_COMMAND_REMOVE_AUTOLOAD] = command_remove_autoload, [PA_COMMAND_MOVE_SINK_INPUT] = command_move_stream, [PA_COMMAND_MOVE_SOURCE_OUTPUT] = command_move_stream }; /* structure management */ static struct upload_stream* upload_stream_new( struct connection *c, const pa_sample_spec *ss, const pa_channel_map *map, const char *name, size_t length) { struct upload_stream *s; assert(c && ss && name && length); s = pa_xnew(struct upload_stream, 1); s->type = UPLOAD_STREAM; s->connection = c; s->sample_spec = *ss; s->channel_map = *map; s->name = pa_xstrdup(name); s->memchunk.memblock = NULL; s->memchunk.index = 0; s->memchunk.length = 0; s->length = length; pa_idxset_put(c->output_streams, s, &s->index); return s; } static void upload_stream_free(struct upload_stream *o) { assert(o && o->connection); pa_idxset_remove_by_data(o->connection->output_streams, o, NULL); pa_xfree(o->name); if (o->memchunk.memblock) pa_memblock_unref(o->memchunk.memblock); pa_xfree(o); } static struct record_stream* record_stream_new( struct connection *c, pa_source *source, const pa_sample_spec *ss, const pa_channel_map *map, const char *name, size_t maxlength, size_t fragment_size) { struct record_stream *s; pa_source_output *source_output; size_t base; pa_source_output_new_data data; assert(c && ss && name && maxlength); pa_source_output_new_data_init(&data); data.source = source; data.driver = __FILE__; data.name = name; pa_source_output_new_data_set_sample_spec(&data, ss); pa_source_output_new_data_set_channel_map(&data, map); data.module = c->protocol->module; data.client = c->client; if (!(source_output = pa_source_output_new(c->protocol->core, &data, 0))) return NULL; s = pa_xnew(struct record_stream, 1); s->connection = c; s->source_output = source_output; s->source_output->push = source_output_push_cb; s->source_output->kill = source_output_kill_cb; s->source_output->get_latency = source_output_get_latency_cb; s->source_output->userdata = s; s->memblockq = pa_memblockq_new( 0, maxlength, 0, base = pa_frame_size(ss), 1, 0, NULL); assert(s->memblockq); s->fragment_size = (fragment_size/base)*base; if (!s->fragment_size) s->fragment_size = base; pa_idxset_put(c->record_streams, s, &s->index); return s; } static void record_stream_free(struct record_stream* r) { assert(r && r->connection); pa_idxset_remove_by_data(r->connection->record_streams, r, NULL); pa_source_output_disconnect(r->source_output); pa_source_output_unref(r->source_output); pa_memblockq_free(r->memblockq); pa_xfree(r); } static struct playback_stream* playback_stream_new( struct connection *c, pa_sink *sink, const pa_sample_spec *ss, const pa_channel_map *map, const char *name, size_t maxlength, size_t tlength, size_t prebuf, size_t minreq, pa_cvolume *volume, uint32_t syncid) { struct playback_stream *s, *ssync; pa_sink_input *sink_input; pa_memblock *silence; uint32_t idx; int64_t start_index; pa_sink_input_new_data data; assert(c && ss && name && maxlength); /* Find syncid group */ for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) { if (ssync->type != PLAYBACK_STREAM) continue; if (ssync->syncid == syncid) break; } /* Synced streams must connect to the same sink */ if (ssync) sink = ssync->sink_input->sink; pa_sink_input_new_data_init(&data); data.sink = sink; data.driver = __FILE__; data.name = name; pa_sink_input_new_data_set_sample_spec(&data, ss); pa_sink_input_new_data_set_channel_map(&data, map); pa_sink_input_new_data_set_volume(&data, volume); data.module = c->protocol->module; data.client = c->client; if (!(sink_input = pa_sink_input_new(c->protocol->core, &data, 0))) return NULL; s = pa_xnew(struct playback_stream, 1); s->type = PLAYBACK_STREAM; s->connection = c; s->syncid = syncid; s->sink_input = sink_input; s->underrun = 1; s->sink_input->peek = sink_input_peek_cb; s->sink_input->drop = sink_input_drop_cb; s->sink_input->kill = sink_input_kill_cb; s->sink_input->get_latency = sink_input_get_latency_cb; s->sink_input->userdata = s; if (ssync) { /* Sync id found, now find head of list */ PA_LLIST_FIND_HEAD(struct playback_stream, ssync, &ssync); /* Prepend ourselves */ PA_LLIST_PREPEND(struct playback_stream, ssync, s); /* Set our start index to the current read index of the other grozp member(s) */ assert(ssync->next); start_index = pa_memblockq_get_read_index(ssync->next->memblockq); } else { /* This ia a new sync group */ PA_LLIST_INIT(struct playback_stream, s); start_index = 0; } silence = pa_silence_memblock_new(c->protocol->core->mempool, ss, 0); s->memblockq = pa_memblockq_new( start_index, maxlength, tlength, pa_frame_size(ss), prebuf, minreq, silence); pa_memblock_unref(silence); s->requested_bytes = 0; s->drain_request = 0; pa_idxset_put(c->output_streams, s, &s->index); return s; } static void playback_stream_free(struct playback_stream* p) { struct playback_stream *head; assert(p && p->connection); if (p->drain_request) pa_pstream_send_error(p->connection->pstream, p->drain_tag, PA_ERR_NOENTITY); PA_LLIST_FIND_HEAD(struct playback_stream, p, &head); PA_LLIST_REMOVE(struct playback_stream, head, p); pa_idxset_remove_by_data(p->connection->output_streams, p, NULL); pa_sink_input_disconnect(p->sink_input); pa_sink_input_unref(p->sink_input); pa_memblockq_free(p->memblockq); pa_xfree(p); } static void connection_free(struct connection *c) { struct record_stream *r; struct output_stream *o; assert(c && c->protocol); pa_idxset_remove_by_data(c->protocol->connections, c, NULL); while ((r = pa_idxset_first(c->record_streams, NULL))) record_stream_free(r); pa_idxset_free(c->record_streams, NULL, NULL); while ((o = pa_idxset_first(c->output_streams, NULL))) if (o->type == PLAYBACK_STREAM) playback_stream_free((struct playback_stream*) o); else upload_stream_free((struct upload_stream*) o); pa_idxset_free(c->output_streams, NULL, NULL); pa_pdispatch_unref(c->pdispatch); pa_pstream_close(c->pstream); pa_pstream_unref(c->pstream); pa_client_free(c->client); if (c->subscription) pa_subscription_free(c->subscription); if (c->auth_timeout_event) c->protocol->core->mainloop->time_free(c->auth_timeout_event); pa_xfree(c); } static void request_bytes(struct playback_stream *s) { pa_tagstruct *t; size_t l; assert(s); if (!(l = pa_memblockq_missing(s->memblockq))) return; if (l <= s->requested_bytes) return; l -= s->requested_bytes; if (l < pa_memblockq_get_minreq(s->memblockq)) return; s->requested_bytes += l; t = pa_tagstruct_new(NULL, 0); assert(t); pa_tagstruct_putu32(t, PA_COMMAND_REQUEST); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, s->index); pa_tagstruct_putu32(t, l); pa_pstream_send_tagstruct(s->connection->pstream, t); /* pa_log("Requesting %u bytes", l); */ } static void send_memblock(struct connection *c) { uint32_t start; struct record_stream *r; start = PA_IDXSET_INVALID; for (;;) { pa_memchunk chunk; if (!(r = pa_idxset_rrobin(c->record_streams, &c->rrobin_index))) return; if (start == PA_IDXSET_INVALID) start = c->rrobin_index; else if (start == c->rrobin_index) return; if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) { pa_memchunk schunk = chunk; if (schunk.length > r->fragment_size) schunk.length = r->fragment_size; pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk); pa_memblockq_drop(r->memblockq, &chunk, schunk.length); pa_memblock_unref(schunk.memblock); return; } } } static void send_playback_stream_killed(struct playback_stream *p) { pa_tagstruct *t; assert(p); t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, p->index); pa_pstream_send_tagstruct(p->connection->pstream, t); } static void send_record_stream_killed(struct record_stream *r) { pa_tagstruct *t; assert(r); t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, r->index); pa_pstream_send_tagstruct(r->connection->pstream, t); } /*** sinkinput callbacks ***/ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) { struct playback_stream *s; assert(i && i->userdata && chunk); s = i->userdata; if (pa_memblockq_get_length(s->memblockq) <= 0 && !s->underrun) { pa_tagstruct *t; /* Report that we're empty */ t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, s->index); pa_pstream_send_tagstruct(s->connection->pstream, t); s->underrun = 1; } if (pa_memblockq_peek(s->memblockq, chunk) < 0) { /* pa_log("peek: failure"); */ return -1; } /* pa_log("peek: %u", chunk->length); */ return 0; } static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) { struct playback_stream *s; assert(i && i->userdata && length); s = i->userdata; pa_memblockq_drop(s->memblockq, chunk, length); request_bytes(s); if (s->drain_request && !pa_memblockq_is_readable(s->memblockq)) { pa_pstream_send_simple_ack(s->connection->pstream, s->drain_tag); s->drain_request = 0; } /* pa_log("after_drop: %u %u", pa_memblockq_get_length(s->memblockq), pa_memblockq_is_readable(s->memblockq)); */ } static void sink_input_kill_cb(pa_sink_input *i) { assert(i && i->userdata); send_playback_stream_killed((struct playback_stream *) i->userdata); playback_stream_free((struct playback_stream *) i->userdata); } static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) { struct playback_stream *s; assert(i && i->userdata); s = i->userdata; /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/ return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &s->sink_input->sample_spec); } /*** source_output callbacks ***/ static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) { struct record_stream *s; assert(o && o->userdata && chunk); s = o->userdata; if (pa_memblockq_push_align(s->memblockq, chunk) < 0) { pa_log_warn("Failed to push data into output queue."); return; } if (!pa_pstream_is_pending(s->connection->pstream)) send_memblock(s->connection); } static void source_output_kill_cb(pa_source_output *o) { assert(o && o->userdata); send_record_stream_killed((struct record_stream *) o->userdata); record_stream_free((struct record_stream *) o->userdata); } static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { struct record_stream *s; assert(o && o->userdata); s = o->userdata; /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/ return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec); } /*** pdispatch callbacks ***/ static void protocol_error(struct connection *c) { pa_log("protocol error, kicking client"); connection_free(c); } #define CHECK_VALIDITY(pstream, expression, tag, error) do { \ if (!(expression)) { \ pa_pstream_send_error((pstream), (tag), (error)); \ return; \ } \ } while(0); static pa_tagstruct *reply_new(uint32_t tag) { pa_tagstruct *reply; reply = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); return reply; } 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) { struct connection *c = userdata; struct playback_stream *s; uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid; const char *name, *sink_name; pa_sample_spec ss; pa_channel_map map; pa_tagstruct *reply; pa_sink *sink = NULL; pa_cvolume volume; int corked; assert(c && t && c->protocol && c->protocol->core); if (pa_tagstruct_get( t, PA_TAG_STRING, &name, PA_TAG_SAMPLE_SPEC, &ss, PA_TAG_CHANNEL_MAP, &map, PA_TAG_U32, &sink_index, PA_TAG_STRING, &sink_name, PA_TAG_U32, &maxlength, PA_TAG_BOOLEAN, &corked, PA_TAG_U32, &tlength, PA_TAG_U32, &prebuf, PA_TAG_U32, &minreq, PA_TAG_U32, &syncid, PA_TAG_CVOLUME, &volume, PA_TAG_INVALID) < 0 || !pa_tagstruct_eof(t) || !name) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, maxlength > 0 && maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, maxlength >= pa_frame_size(&ss), tag, PA_ERR_INVALID); if (sink_index != PA_INVALID_INDEX) { sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); } else if (sink_name) { sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1); CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); } s = playback_stream_new(c, sink, &ss, &map, name, maxlength, tlength, prebuf, minreq, &volume, syncid); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); pa_sink_input_cork(s->sink_input, corked); reply = reply_new(tag); pa_tagstruct_putu32(reply, s->index); assert(s->sink_input); pa_tagstruct_putu32(reply, s->sink_input->index); pa_tagstruct_putu32(reply, s->requested_bytes = pa_memblockq_missing(s->memblockq)); if (c->version >= 9) { /* Since 0.9 we support sending the buffer metrics back to the client */ pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq)); pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_tlength(s->memblockq)); pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_prebuf(s->memblockq)); pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_minreq(s->memblockq)); } pa_pstream_send_tagstruct(c->pstream, reply); request_bytes(s); } static void command_delete_stream(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t channel; assert(c && t); if (pa_tagstruct_getu32(t, &channel) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); if (command == PA_COMMAND_DELETE_PLAYBACK_STREAM) { struct playback_stream *s; if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != PLAYBACK_STREAM)) { pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); return; } playback_stream_free(s); } else if (command == PA_COMMAND_DELETE_RECORD_STREAM) { struct record_stream *s; if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) { pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); return; } record_stream_free(s); } else { struct upload_stream *s; assert(command == PA_COMMAND_DELETE_UPLOAD_STREAM); if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) { pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); return; } upload_stream_free(s); } pa_pstream_send_simple_ack(c->pstream, tag); } 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) { struct connection *c = userdata; struct record_stream *s; uint32_t maxlength, fragment_size; uint32_t source_index; const char *name, *source_name; pa_sample_spec ss; pa_channel_map map; pa_tagstruct *reply; pa_source *source = NULL; int corked; assert(c && t && c->protocol && c->protocol->core); if (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_get_sample_spec(t, &ss) < 0 || pa_tagstruct_get_channel_map(t, &map) < 0 || pa_tagstruct_getu32(t, &source_index) < 0 || pa_tagstruct_gets(t, &source_name) < 0 || pa_tagstruct_getu32(t, &maxlength) < 0 || pa_tagstruct_get_boolean(t, &corked) < 0 || pa_tagstruct_getu32(t, &fragment_size) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, source_index != PA_INVALID_INDEX || !source_name || (*source_name && pa_utf8_valid(source_name)), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID); if (source_index != PA_INVALID_INDEX) { source = pa_idxset_get_by_index(c->protocol->core->sources, source_index); CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); } else if (source_name) { source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1); CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); } s = record_stream_new(c, source, &ss, &map, name, maxlength, fragment_size); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); pa_source_output_cork(s->source_output, corked); reply = reply_new(tag); pa_tagstruct_putu32(reply, s->index); assert(s->source_output); pa_tagstruct_putu32(reply, s->source_output->index); if (c->version >= 9) { /* Since 0.9 we support sending the buffer metrics back to the client */ pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq)); pa_tagstruct_putu32(reply, (uint32_t) s->fragment_size); } pa_pstream_send_tagstruct(c->pstream, reply); } static void command_exit(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); assert(c->protocol && c->protocol->core && c->protocol->core->mainloop); c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0); pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */ } static void command_auth(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; const void*cookie; pa_tagstruct *reply; assert(c && t); if (pa_tagstruct_getu32(t, &c->version) < 0 || pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } /* Minimum supported version */ if (c->version < 8) { pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION); return; } if (!c->authorized) { int success = 0; #ifdef HAVE_CREDS const pa_creds *creds; if ((creds = pa_pdispatch_creds(pd))) { if (creds->uid == getuid()) success = 1; else if (c->protocol->auth_group) { int r; gid_t gid; if ((gid = pa_get_gid_of_group(c->protocol->auth_group)) == (gid_t) -1) pa_log_warn("failed to get GID of group '%s'", c->protocol->auth_group); else if (gid == creds->gid) success = 1; if (!success) { if ((r = pa_uid_in_group(creds->uid, c->protocol->auth_group)) < 0) pa_log_warn("failed to check group membership."); else if (r > 0) success = 1; } } pa_log_info("Got credentials: uid=%lu gid=%lu success=%i", (unsigned long) creds->uid, (unsigned long) creds->gid, success); if (c->version >= 10 && pa_mempool_is_shared(c->protocol->core->mempool) && creds->uid == getuid()) { pa_pstream_use_shm(c->pstream, 1); pa_log_info("Enabled SHM for new connection"); } } #endif if (!success && memcmp(c->protocol->auth_cookie, cookie, PA_NATIVE_COOKIE_LENGTH) == 0) success = 1; if (!success) { pa_log_warn("Denied access to client with invalid authorization data."); pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS); return; } c->authorized = 1; if (c->auth_timeout_event) { c->protocol->core->mainloop->time_free(c->auth_timeout_event); c->auth_timeout_event = NULL; } } reply = reply_new(tag); pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION); #ifdef HAVE_CREDS { /* SHM support is only enabled after both sides made sure they are the same user. */ pa_creds ucred; ucred.uid = getuid(); ucred.gid = getgid(); pa_pstream_send_tagstruct_with_creds(c->pstream, reply, &ucred); } #else pa_pstream_send_tagstruct(c->pstream, reply); #endif } 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) { struct connection *c = userdata; const char *name; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); pa_client_set_name(c->client, name); pa_pstream_send_simple_ack(c->pstream, tag); } static void command_lookup(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; const char *name; uint32_t idx = PA_IDXSET_INVALID; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); if (command == PA_COMMAND_LOOKUP_SINK) { pa_sink *sink; if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1))) idx = sink->index; } else { pa_source *source; assert(command == PA_COMMAND_LOOKUP_SOURCE); if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1))) idx = source->index; } if (idx == PA_IDXSET_INVALID) pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); else { pa_tagstruct *reply; reply = reply_new(tag); pa_tagstruct_putu32(reply, idx); pa_pstream_send_tagstruct(c->pstream, reply); } } 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) { struct connection *c = userdata; uint32_t idx; struct playback_stream *s; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); s = pa_idxset_get_by_index(c->output_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); s->drain_request = 0; pa_memblockq_prebuf_disable(s->memblockq); if (!pa_memblockq_is_readable(s->memblockq)) { /* pa_log("immediate drain: %u", pa_memblockq_get_length(s->memblockq)); */ pa_pstream_send_simple_ack(c->pstream, tag); } else { /* pa_log("slow drain triggered"); */ s->drain_request = 1; s->drain_tag = tag; pa_sink_notify(s->sink_input->sink); } } static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; pa_tagstruct *reply; const pa_mempool_stat *stat; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); stat = pa_mempool_get_stat(c->protocol->core->mempool); reply = reply_new(tag); pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated)); pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size)); pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated)); pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size)); pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core)); pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; pa_tagstruct *reply; struct playback_stream *s; struct timeval tv, now; uint32_t idx; pa_usec_t latency; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_get_timeval(t, &tv) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); s = pa_idxset_get_by_index(c->output_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); reply = reply_new(tag); latency = pa_sink_get_latency(s->sink_input->sink); if (s->sink_input->resampled_chunk.memblock) latency += pa_bytes_to_usec(s->sink_input->resampled_chunk.length, &s->sink_input->sample_spec); pa_tagstruct_put_usec(reply, latency); pa_tagstruct_put_usec(reply, 0); pa_tagstruct_put_boolean(reply, s->sink_input->state == PA_SINK_INPUT_RUNNING); pa_tagstruct_put_timeval(reply, &tv); pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now)); pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq)); pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq)); pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; pa_tagstruct *reply; struct record_stream *s; struct timeval tv, now; uint32_t idx; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_get_timeval(t, &tv) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); reply = reply_new(tag); pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0); pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source)); pa_tagstruct_put_boolean(reply, 0); pa_tagstruct_put_timeval(reply, &tv); pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now)); pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq)); pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq)); pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; struct upload_stream *s; uint32_t length; const char *name; pa_sample_spec ss; pa_channel_map map; pa_tagstruct *reply; assert(c && t && c->protocol && c->protocol->core); if (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_get_sample_spec(t, &ss) < 0 || pa_tagstruct_get_channel_map(t, &map) < 0 || pa_tagstruct_getu32(t, &length) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE); CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); s = upload_stream_new(c, &ss, &map, name, length); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); reply = reply_new(tag); pa_tagstruct_putu32(reply, s->index); pa_tagstruct_putu32(reply, length); pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; uint32_t channel; struct upload_stream *s; uint32_t idx; assert(c && t); if (pa_tagstruct_getu32(t, &channel) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); s = pa_idxset_get_by_index(c->output_streams, channel); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); CHECK_VALIDITY(c->pstream, s->type == UPLOAD_STREAM, tag, PA_ERR_NOENTITY); if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, &idx) < 0) pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL); else pa_pstream_send_simple_ack(c->pstream, tag); upload_stream_free(s); } 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) { struct connection *c = userdata; uint32_t sink_index; pa_volume_t volume; pa_sink *sink; const char *name, *sink_name; assert(c && t); if (pa_tagstruct_getu32(t, &sink_index) < 0 || pa_tagstruct_gets(t, &sink_name) < 0 || pa_tagstruct_getu32(t, &volume) < 0 || pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); if (sink_index != PA_INVALID_INDEX) sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); else sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1); CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); if (pa_scache_play_item(c->protocol->core, name, sink, volume) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); return; } pa_pstream_send_simple_ack(c->pstream, tag); } 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) { struct connection *c = userdata; const char *name; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); if (pa_scache_remove_item(c->protocol->core, name) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); return; } pa_pstream_send_simple_ack(c->pstream, tag); } static void sink_fill_tagstruct(pa_tagstruct *t, pa_sink *sink) { assert(t && sink); pa_tagstruct_put( t, PA_TAG_U32, sink->index, PA_TAG_STRING, sink->name, PA_TAG_STRING, sink->description, PA_TAG_SAMPLE_SPEC, &sink->sample_spec, PA_TAG_CHANNEL_MAP, &sink->channel_map, PA_TAG_U32, sink->owner ? sink->owner->index : PA_INVALID_INDEX, PA_TAG_CVOLUME, pa_sink_get_volume(sink, PA_MIXER_HARDWARE), PA_TAG_BOOLEAN, pa_sink_get_mute(sink, PA_MIXER_HARDWARE), PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX, PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL, PA_TAG_USEC, pa_sink_get_latency(sink), PA_TAG_STRING, sink->driver, PA_TAG_U32, (sink->get_hw_volume ? PA_SINK_HW_VOLUME_CTRL : 0) | (sink->get_latency ? PA_SINK_LATENCY : 0) | (sink->is_hardware ? PA_SINK_HARDWARE : 0), PA_TAG_INVALID); } static void source_fill_tagstruct(pa_tagstruct *t, pa_source *source) { assert(t && source); pa_tagstruct_put( t, PA_TAG_U32, source->index, PA_TAG_STRING, source->name, PA_TAG_STRING, source->description, PA_TAG_SAMPLE_SPEC, &source->sample_spec, PA_TAG_CHANNEL_MAP, &source->channel_map, PA_TAG_U32, source->owner ? source->owner->index : PA_INVALID_INDEX, PA_TAG_CVOLUME, pa_source_get_volume(source, PA_MIXER_HARDWARE), PA_TAG_BOOLEAN, pa_source_get_mute(source, PA_MIXER_HARDWARE), PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX, PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL, PA_TAG_USEC, pa_source_get_latency(source), PA_TAG_STRING, source->driver, PA_TAG_U32, (source->get_hw_volume ? PA_SOURCE_HW_VOLUME_CTRL : 0) | (source->get_latency ? PA_SOURCE_LATENCY : 0) | (source->is_hardware ? PA_SOURCE_HARDWARE : 0), PA_TAG_INVALID); } static void client_fill_tagstruct(pa_tagstruct *t, pa_client *client) { assert(t && client); pa_tagstruct_putu32(t, client->index); pa_tagstruct_puts(t, client->name); pa_tagstruct_putu32(t, client->owner ? client->owner->index : PA_INVALID_INDEX); pa_tagstruct_puts(t, client->driver); } static void module_fill_tagstruct(pa_tagstruct *t, pa_module *module) { assert(t && module); pa_tagstruct_putu32(t, module->index); pa_tagstruct_puts(t, module->name); pa_tagstruct_puts(t, module->argument); pa_tagstruct_putu32(t, module->n_used); pa_tagstruct_put_boolean(t, module->auto_unload); } static void sink_input_fill_tagstruct(pa_tagstruct *t, pa_sink_input *s) { assert(t && s); pa_tagstruct_putu32(t, s->index); pa_tagstruct_puts(t, s->name); pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX); pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX); pa_tagstruct_putu32(t, s->sink->index); pa_tagstruct_put_sample_spec(t, &s->sample_spec); pa_tagstruct_put_channel_map(t, &s->channel_map); pa_tagstruct_put_cvolume(t, &s->volume); pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s)); pa_tagstruct_put_usec(t, pa_sink_get_latency(s->sink)); pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s))); pa_tagstruct_puts(t, s->driver); } static void source_output_fill_tagstruct(pa_tagstruct *t, pa_source_output *s) { assert(t && s); pa_tagstruct_putu32(t, s->index); pa_tagstruct_puts(t, s->name); pa_tagstruct_putu32(t, s->module ? s->module->index : PA_INVALID_INDEX); pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX); pa_tagstruct_putu32(t, s->source->index); pa_tagstruct_put_sample_spec(t, &s->sample_spec); pa_tagstruct_put_channel_map(t, &s->channel_map); pa_tagstruct_put_usec(t, pa_source_output_get_latency(s)); pa_tagstruct_put_usec(t, pa_source_get_latency(s->source)); pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s))); pa_tagstruct_puts(t, s->driver); } static void scache_fill_tagstruct(pa_tagstruct *t, pa_scache_entry *e) { assert(t && e); pa_tagstruct_putu32(t, e->index); pa_tagstruct_puts(t, e->name); pa_tagstruct_put_cvolume(t, &e->volume); pa_tagstruct_put_usec(t, pa_bytes_to_usec(e->memchunk.length, &e->sample_spec)); pa_tagstruct_put_sample_spec(t, &e->sample_spec); pa_tagstruct_put_channel_map(t, &e->channel_map); pa_tagstruct_putu32(t, e->memchunk.length); pa_tagstruct_put_boolean(t, e->lazy); pa_tagstruct_puts(t, e->filename); } static void command_get_info(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx; pa_sink *sink = NULL; pa_source *source = NULL; pa_client *client = NULL; pa_module *module = NULL; pa_sink_input *si = NULL; pa_source_output *so = NULL; pa_scache_entry *sce = NULL; const char *name; pa_tagstruct *reply; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || (command != PA_COMMAND_GET_CLIENT_INFO && command != PA_COMMAND_GET_MODULE_INFO && command != PA_COMMAND_GET_SINK_INPUT_INFO && command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO && pa_tagstruct_gets(t, &name) < 0) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); if (command == PA_COMMAND_GET_SINK_INFO) { if (idx != PA_INVALID_INDEX) sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); else sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); } else if (command == PA_COMMAND_GET_SOURCE_INFO) { if (idx != PA_INVALID_INDEX) source = pa_idxset_get_by_index(c->protocol->core->sources, idx); else source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); } else if (command == PA_COMMAND_GET_CLIENT_INFO) client = pa_idxset_get_by_index(c->protocol->core->clients, idx); else if (command == PA_COMMAND_GET_MODULE_INFO) module = pa_idxset_get_by_index(c->protocol->core->modules, idx); else if (command == PA_COMMAND_GET_SINK_INPUT_INFO) si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO) so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); else { assert(command == PA_COMMAND_GET_SAMPLE_INFO); if (idx != PA_INVALID_INDEX) sce = pa_idxset_get_by_index(c->protocol->core->scache, idx); else sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0); } if (!sink && !source && !client && !module && !si && !so && !sce) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); return; } reply = reply_new(tag); if (sink) sink_fill_tagstruct(reply, sink); else if (source) source_fill_tagstruct(reply, source); else if (client) client_fill_tagstruct(reply, client); else if (module) module_fill_tagstruct(reply, module); else if (si) sink_input_fill_tagstruct(reply, si); else if (so) source_output_fill_tagstruct(reply, so); else scache_fill_tagstruct(reply, sce); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_info_list(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; pa_idxset *i; uint32_t idx; void *p; pa_tagstruct *reply; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); reply = reply_new(tag); if (command == PA_COMMAND_GET_SINK_INFO_LIST) i = c->protocol->core->sinks; else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) i = c->protocol->core->sources; else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) i = c->protocol->core->clients; else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) i = c->protocol->core->modules; else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) i = c->protocol->core->sink_inputs; else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) i = c->protocol->core->source_outputs; else { assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); i = c->protocol->core->scache; } if (i) { for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) { if (command == PA_COMMAND_GET_SINK_INFO_LIST) sink_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) source_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) client_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) module_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) sink_input_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) source_output_fill_tagstruct(reply, p); else { assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); scache_fill_tagstruct(reply, p); } } } pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; pa_tagstruct *reply; char txt[256]; const char *n; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); reply = reply_new(tag); pa_tagstruct_puts(reply, PACKAGE_NAME); pa_tagstruct_puts(reply, PACKAGE_VERSION); pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt))); pa_tagstruct_puts(reply, pa_get_fqdn(txt, sizeof(txt))); pa_tagstruct_put_sample_spec(reply, &c->protocol->core->default_sample_spec); n = pa_namereg_get_default_sink_name(c->protocol->core); pa_tagstruct_puts(reply, n); n = pa_namereg_get_default_source_name(c->protocol->core); pa_tagstruct_puts(reply, n); pa_tagstruct_putu32(reply, c->protocol->core->cookie); pa_pstream_send_tagstruct(c->pstream, reply); } static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) { pa_tagstruct *t; struct connection *c = userdata; assert(c && core); t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT); pa_tagstruct_putu32(t, (uint32_t) -1); pa_tagstruct_putu32(t, e); pa_tagstruct_putu32(t, idx); pa_pstream_send_tagstruct(c->pstream, t); } static void command_subscribe(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; pa_subscription_mask_t m; assert(c && t); if (pa_tagstruct_getu32(t, &m) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID); if (c->subscription) pa_subscription_free(c->subscription); if (m != 0) { c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c); assert(c->subscription); } else c->subscription = NULL; pa_pstream_send_simple_ack(c->pstream, tag); } static void command_set_volume( PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx; pa_cvolume volume; pa_sink *sink = NULL; pa_source *source = NULL; pa_sink_input *si = NULL; const char *name = NULL; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) || (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) || pa_tagstruct_get_cvolume(t, &volume) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID); if (command == PA_COMMAND_SET_SINK_VOLUME) { if (idx != PA_INVALID_INDEX) sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); else sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); } else if (command == PA_COMMAND_SET_SOURCE_VOLUME) { if (idx != (uint32_t) -1) source = pa_idxset_get_by_index(c->protocol->core->sources, idx); else source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); } else { assert(command == PA_COMMAND_SET_SINK_INPUT_VOLUME); si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); } CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY); if (sink) pa_sink_set_volume(sink, PA_MIXER_HARDWARE, &volume); else if (source) pa_source_set_volume(source, PA_MIXER_HARDWARE, &volume); else if (si) pa_sink_input_set_volume(si, &volume); pa_pstream_send_simple_ack(c->pstream, tag); } static void command_set_mute( PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx; int mute; pa_sink *sink = NULL; pa_source *source = NULL; const char *name = NULL; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_get_boolean(t, &mute) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); if (command == PA_COMMAND_SET_SINK_MUTE) { if (idx != PA_INVALID_INDEX) sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); else sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); } else { assert(command == PA_COMMAND_SET_SOURCE_MUTE); if (idx != (uint32_t) -1) source = pa_idxset_get_by_index(c->protocol->core->sources, idx); else source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); } CHECK_VALIDITY(c->pstream, sink || source, tag, PA_ERR_NOENTITY); if (sink) pa_sink_set_mute(sink, PA_MIXER_HARDWARE, mute); else if (source) pa_source_set_mute(source, PA_MIXER_HARDWARE, mute); pa_pstream_send_simple_ack(c->pstream, tag); } 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) { struct connection *c = userdata; uint32_t idx; int b; struct playback_stream *s, *ssync; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_get_boolean(t, &b) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); s = pa_idxset_get_by_index(c->output_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); pa_sink_input_cork(s->sink_input, b); pa_memblockq_prebuf_force(s->memblockq); /* Do the same for all other members in the sync group */ for (ssync = s->prev; ssync; ssync = ssync->prev) { pa_sink_input_cork(ssync->sink_input, b); pa_memblockq_prebuf_force(ssync->memblockq); } for (ssync = s->next; ssync; ssync = ssync->next) { pa_sink_input_cork(ssync->sink_input, b); pa_memblockq_prebuf_force(ssync->memblockq); } pa_pstream_send_simple_ack(c->pstream, tag); } static void command_flush_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx; struct playback_stream *s, *ssync; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); s = pa_idxset_get_by_index(c->output_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); pa_memblockq_flush(s->memblockq); s->underrun = 0; /* Do the same for all other members in the sync group */ for (ssync = s->prev; ssync; ssync = ssync->prev) { pa_memblockq_flush(ssync->memblockq); ssync->underrun = 0; } for (ssync = s->next; ssync; ssync = ssync->next) { pa_memblockq_flush(ssync->memblockq); ssync->underrun = 0; } pa_pstream_send_simple_ack(c->pstream, tag); pa_sink_notify(s->sink_input->sink); request_bytes(s); for (ssync = s->prev; ssync; ssync = ssync->prev) request_bytes(ssync); for (ssync = s->next; ssync; ssync = ssync->next) request_bytes(ssync); } static void command_trigger_or_prebuf_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx; struct playback_stream *s; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); s = pa_idxset_get_by_index(c->output_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); switch (command) { case PA_COMMAND_PREBUF_PLAYBACK_STREAM: pa_memblockq_prebuf_force(s->memblockq); break; case PA_COMMAND_TRIGGER_PLAYBACK_STREAM: pa_memblockq_prebuf_disable(s->memblockq); break; default: abort(); } pa_sink_notify(s->sink_input->sink); pa_pstream_send_simple_ack(c->pstream, tag); request_bytes(s); } 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) { struct connection *c = userdata; uint32_t idx; struct record_stream *s; int b; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_get_boolean(t, &b) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); pa_source_output_cork(s->source_output, b); pa_memblockq_prebuf_force(s->memblockq); pa_pstream_send_simple_ack(c->pstream, tag); } 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) { struct connection *c = userdata; uint32_t idx; struct record_stream *s; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); pa_memblockq_flush(s->memblockq); pa_pstream_send_simple_ack(c->pstream, tag); } 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) { struct connection *c = userdata; const char *s; assert(c && t); if (pa_tagstruct_gets(t, &s) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, !s || (*s && pa_utf8_valid(s)), tag, PA_ERR_INVALID); pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK); pa_pstream_send_simple_ack(c->pstream, tag); } static void command_set_stream_name(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx; const char *name; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) { struct playback_stream *s; s = pa_idxset_get_by_index(c->output_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); pa_sink_input_set_name(s->sink_input, name); } else { struct record_stream *s; s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); pa_source_output_set_name(s->source_output, name); } pa_pstream_send_simple_ack(c->pstream, tag); } static void command_kill(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); if (command == PA_COMMAND_KILL_CLIENT) { pa_client *client; client = pa_idxset_get_by_index(c->protocol->core->clients, idx); CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY); pa_client_kill(client); } else if (command == PA_COMMAND_KILL_SINK_INPUT) { pa_sink_input *s; s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); pa_sink_input_kill(s); } else { pa_source_output *s; assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT); s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); pa_source_output_kill(s); } pa_pstream_send_simple_ack(c->pstream, tag); } 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) { struct connection *c = userdata; pa_module *m; const char *name, *argument; pa_tagstruct *reply; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_gets(t, &argument) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID); if (!(m = pa_module_load(c->protocol->core, name, argument))) { pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED); return; } reply = reply_new(tag); pa_tagstruct_putu32(reply, m->index); pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; uint32_t idx; pa_module *m; assert(c && t); if (pa_tagstruct_getu32(t, &idx) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); m = pa_idxset_get_by_index(c->protocol->core->modules, idx); CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY); pa_module_unload_request(m); pa_pstream_send_simple_ack(c->pstream, tag); } 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) { struct connection *c = userdata; const char *name, *module, *argument; uint32_t type; uint32_t idx; pa_tagstruct *reply; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_getu32(t, &type) < 0 || pa_tagstruct_gets(t, &module) < 0 || pa_tagstruct_gets(t, &argument) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID); if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); return; } reply = reply_new(tag); pa_tagstruct_putu32(reply, idx); pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; const char *name = NULL; uint32_t type, idx = PA_IDXSET_INVALID; int r; assert(c && t); if ((pa_tagstruct_getu32(t, &idx) < 0 && (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_getu32(t, &type) < 0)) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID); if (name) r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE); else r = pa_autoload_remove_by_index(c->protocol->core, idx); CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY); pa_pstream_send_simple_ack(c->pstream, tag); } static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) { assert(t && e); pa_tagstruct_putu32(t, e->index); pa_tagstruct_puts(t, e->name); pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1); pa_tagstruct_puts(t, e->module); pa_tagstruct_puts(t, e->argument); } 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) { struct connection *c = userdata; const pa_autoload_entry *a = NULL; uint32_t type, idx; const char *name; pa_tagstruct *reply; assert(c && t); if ((pa_tagstruct_getu32(t, &idx) < 0 && (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_getu32(t, &type) < 0)) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID); if (name) a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE); else a = pa_autoload_get_by_index(c->protocol->core, idx); CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY); reply = reply_new(tag); autoload_fill_tagstruct(reply, a); pa_pstream_send_tagstruct(c->pstream, reply); } 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) { struct connection *c = userdata; pa_tagstruct *reply; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); reply = reply_new(tag); if (c->protocol->core->autoload_hashmap) { pa_autoload_entry *a; void *state = NULL; while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL))) autoload_fill_tagstruct(reply, a); } pa_pstream_send_tagstruct(c->pstream, reply); } static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX; const char *name = NULL; assert(c); assert(t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_getu32(t, &idx_device) < 0 || pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); if (command == PA_COMMAND_MOVE_SINK_INPUT) { pa_sink_input *si = NULL; pa_sink *sink = NULL; si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); if (idx_device != PA_INVALID_INDEX) sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device); else sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY); if (pa_sink_input_move_to(si, sink, 0) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); return; } } else { pa_source_output *so = NULL; pa_source *source; so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); if (idx_device != PA_INVALID_INDEX) source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device); else source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY); if (pa_source_output_move_to(so, source) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); return; } } pa_pstream_send_simple_ack(c->pstream, tag); } /*** pstream callbacks ***/ static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) { struct connection *c = userdata; assert(p && packet && packet->data && c); if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) { pa_log("invalid packet."); connection_free(c); } } 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) { struct connection *c = userdata; struct output_stream *stream; assert(p && chunk && userdata); if (!(stream = pa_idxset_get_by_index(c->output_streams, channel))) { pa_log("client sent block for invalid stream."); /* Ignoring */ return; } if (stream->type == PLAYBACK_STREAM) { struct playback_stream *ps = (struct playback_stream*) stream; if (chunk->length >= ps->requested_bytes) ps->requested_bytes = 0; else ps->requested_bytes -= chunk->length; pa_memblockq_seek(ps->memblockq, offset, seek); if (pa_memblockq_push_align(ps->memblockq, chunk) < 0) { pa_tagstruct *t; pa_log_warn("failed to push data into queue"); /* Pushing this block into the queue failed, so we simulate * it by skipping ahead */ pa_memblockq_seek(ps->memblockq, chunk->length, PA_SEEK_RELATIVE); /* Notify the user */ t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_OVERFLOW); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, ps->index); pa_pstream_send_tagstruct(p, t); } ps->underrun = 0; pa_sink_notify(ps->sink_input->sink); } else { struct upload_stream *u = (struct upload_stream*) stream; size_t l; assert(u->type == UPLOAD_STREAM); if (!u->memchunk.memblock) { if (u->length == chunk->length) { u->memchunk = *chunk; pa_memblock_ref(u->memchunk.memblock); u->length = 0; } else { u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length); u->memchunk.index = u->memchunk.length = 0; } } assert(u->memchunk.memblock); l = u->length; if (l > chunk->length) l = chunk->length; if (l > 0) { memcpy((uint8_t*) u->memchunk.memblock->data + u->memchunk.index + u->memchunk.length, (uint8_t*) chunk->memblock->data+chunk->index, l); u->memchunk.length += l; u->length -= l; } } } static void pstream_die_callback(pa_pstream *p, void *userdata) { struct connection *c = userdata; assert(p && c); connection_free(c); /* pa_log("connection died.");*/ } static void pstream_drain_callback(pa_pstream *p, void *userdata) { struct connection *c = userdata; assert(p && c); send_memblock(c); } /*** client callbacks ***/ static void client_kill_cb(pa_client *c) { assert(c && c->userdata); connection_free(c->userdata); } /*** socket server callbacks ***/ static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { struct connection *c = userdata; assert(m && tv && c && c->auth_timeout_event == e); if (!c->authorized) connection_free(c); } static void on_connection(PA_GCC_UNUSED pa_socket_server*s, pa_iochannel *io, void *userdata) { pa_protocol_native *p = userdata; struct connection *c; char cname[256], pname[128]; assert(io && p); if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); pa_iochannel_free(io); return; } c = pa_xmalloc(sizeof(struct connection)); c->authorized = !!p->public; if (!c->authorized && p->auth_ip_acl && pa_ip_acl_check(p->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) { pa_log_info("Client authenticated by IP ACL."); c->authorized = 1; } if (!c->authorized) { struct timeval tv; pa_gettimeofday(&tv); tv.tv_sec += AUTH_TIMEOUT; c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c); } else c->auth_timeout_event = NULL; c->version = 8; c->protocol = p; pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname)); snprintf(cname, sizeof(cname), "Native client (%s)", pname); assert(p->core); c->client = pa_client_new(p->core, __FILE__, cname); assert(c->client); c->client->kill = client_kill_cb; c->client->userdata = c; c->client->owner = p->module; c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool); assert(c->pstream); pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c); pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c); pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c); pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c); c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX); assert(c->pdispatch); c->record_streams = pa_idxset_new(NULL, NULL); c->output_streams = pa_idxset_new(NULL, NULL); assert(c->record_streams && c->output_streams); c->rrobin_index = PA_IDXSET_INVALID; c->subscription = NULL; pa_idxset_put(p->connections, c, NULL); #ifdef HAVE_CREDS if (pa_iochannel_creds_supported(io)) pa_iochannel_creds_enable(io); #endif } /*** module entry points ***/ static int load_key(pa_protocol_native*p, const char*fn) { assert(p); p->auth_cookie_in_property = 0; if (!fn && pa_authkey_prop_get(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) { pa_log_info("using already loaded auth cookie."); pa_authkey_prop_ref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME); p->auth_cookie_in_property = 1; return 0; } if (!fn) fn = PA_NATIVE_COOKIE_FILE; if (pa_authkey_load_auto(fn, p->auth_cookie, sizeof(p->auth_cookie)) < 0) return -1; pa_log_info("loading cookie from disk."); if (pa_authkey_prop_put(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) p->auth_cookie_in_property = 1; return 0; } static pa_protocol_native* protocol_new_internal(pa_core *c, pa_module *m, pa_modargs *ma) { pa_protocol_native *p; int public = 0; const char *acl; assert(c); assert(ma); if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &public) < 0) { pa_log("auth-anonymous= expects a boolean argument."); return NULL; } p = pa_xnew(pa_protocol_native, 1); p->core = c; p->module = m; p->public = public; p->server = NULL; p->auth_ip_acl = NULL; #ifdef HAVE_CREDS { int a = 1; if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &a) < 0) { pa_log("auth-group-enabled= expects a boolean argument."); return NULL; } p->auth_group = a ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", c->is_system_instance ? PA_ACCESS_GROUP : NULL)) : NULL; if (p->auth_group) pa_log_info("Allowing access to group '%s'.", p->auth_group); } #endif if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) { if (!(p->auth_ip_acl = pa_ip_acl_new(acl))) { pa_log("Failed to parse IP ACL '%s'", acl); goto fail; } } if (load_key(p, pa_modargs_get_value(ma, "cookie", NULL)) < 0) goto fail; p->connections = pa_idxset_new(NULL, NULL); assert(p->connections); return p; fail: #ifdef HAVE_CREDS pa_xfree(p->auth_group); #endif if (p->auth_ip_acl) pa_ip_acl_free(p->auth_ip_acl); pa_xfree(p); return NULL; } pa_protocol_native* pa_protocol_native_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma) { char t[256]; pa_protocol_native *p; if (!(p = protocol_new_internal(core, m, ma))) return NULL; p->server = server; pa_socket_server_set_callback(p->server, on_connection, p); if (pa_socket_server_get_address(p->server, t, sizeof(t))) { pa_strlist *l; l = pa_property_get(core, PA_NATIVE_SERVER_PROPERTY_NAME); l = pa_strlist_prepend(l, t); pa_property_replace(core, PA_NATIVE_SERVER_PROPERTY_NAME, l); } return p; } void pa_protocol_native_free(pa_protocol_native *p) { struct connection *c; assert(p); while ((c = pa_idxset_first(p->connections, NULL))) connection_free(c); pa_idxset_free(p->connections, NULL, NULL); if (p->server) { char t[256]; if (pa_socket_server_get_address(p->server, t, sizeof(t))) { pa_strlist *l; l = pa_property_get(p->core, PA_NATIVE_SERVER_PROPERTY_NAME); l = pa_strlist_remove(l, t); if (l) pa_property_replace(p->core, PA_NATIVE_SERVER_PROPERTY_NAME, l); else pa_property_remove(p->core, PA_NATIVE_SERVER_PROPERTY_NAME); } pa_socket_server_unref(p->server); } if (p->auth_cookie_in_property) pa_authkey_prop_unref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME); if (p->auth_ip_acl) pa_ip_acl_free(p->auth_ip_acl); #ifdef HAVE_CREDS pa_xfree(p->auth_group); #endif pa_xfree(p); } pa_protocol_native* pa_protocol_native_new_iochannel(pa_core*core, pa_iochannel *io, pa_module *m, pa_modargs *ma) { pa_protocol_native *p; if (!(p = protocol_new_internal(core, m, ma))) return NULL; on_connection(NULL, io, p); return p; }