/* $Id$ */ /*** 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 */ typedef struct connection connection; struct pa_protocol_native; typedef struct record_stream { pa_msgobject parent; connection *connection; uint32_t index; pa_source_output *source_output; pa_memblockq *memblockq; size_t fragment_size; } record_stream; typedef struct output_stream { pa_msgobject parent; } output_stream; typedef struct playback_stream { output_stream parent; connection *connection; uint32_t index; pa_sink_input *sink_input; pa_memblockq *memblockq; int drain_request; uint32_t drain_tag; uint32_t syncid; int underrun; pa_atomic_t missing; size_t minreq; /* Only updated after SINK_INPUT_MESSAGE_UPDATE_LATENCY */ int64_t read_index, write_index; size_t resampled_chunk_length; } playback_stream; typedef struct upload_stream { output_stream parent; connection *connection; uint32_t index; pa_memchunk memchunk; size_t length; char *name; pa_sample_spec sample_spec; pa_channel_map channel_map; } upload_stream; struct connection { pa_msgobject parent; 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; }; PA_DECLARE_CLASS(record_stream); #define RECORD_STREAM(o) (record_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(record_stream, pa_msgobject); PA_DECLARE_CLASS(output_stream); #define OUTPUT_STREAM(o) (output_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(output_stream, pa_msgobject); PA_DECLARE_CLASS(playback_stream); #define PLAYBACK_STREAM(o) (playback_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(playback_stream, output_stream); PA_DECLARE_CLASS(upload_stream); #define UPLOAD_STREAM(o) (upload_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(upload_stream, output_stream); PA_DECLARE_CLASS(connection); #define CONNECTION(o) (connection_cast(o)) static PA_DEFINE_CHECK_TYPE(connection, pa_msgobject); struct pa_protocol_native { pa_module *module; pa_core *core; int public; 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; }; enum { SINK_INPUT_MESSAGE_POST_DATA = PA_SINK_INPUT_MESSAGE_MAX, /* data from main loop to sink input */ SINK_INPUT_MESSAGE_DRAIN, /* disabled prebuf, get playback started. */ SINK_INPUT_MESSAGE_FLUSH, SINK_INPUT_MESSAGE_TRIGGER, SINK_INPUT_MESSAGE_SEEK, SINK_INPUT_MESSAGE_PREBUF_FORCE, SINK_INPUT_MESSAGE_UPDATE_LATENCY }; enum { PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, /* data requested from sink input from the main loop */ PLAYBACK_STREAM_MESSAGE_UNDERFLOW, PLAYBACK_STREAM_MESSAGE_OVERFLOW, PLAYBACK_STREAM_MESSAGE_DRAIN_ACK }; enum { RECORD_STREAM_MESSAGE_POST_DATA /* data from source output to main loop */ }; enum { CONNECTION_MESSAGE_RELEASE, CONNECTION_MESSAGE_REVOKE }; static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk); static void sink_input_drop_cb(pa_sink_input *i, size_t length); static void sink_input_kill_cb(pa_sink_input *i); static void send_memblock(connection *c); 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 int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk); 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_trigger_or_flush_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 void command_suspend(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_SINK_INPUT_MUTE] = command_set_mute, [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute, [PA_COMMAND_SUSPEND_SINK] = command_suspend, [PA_COMMAND_SUSPEND_SOURCE] = command_suspend, [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream, [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream, [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_flush_or_prebuf_playback_stream, [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_flush_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 void upload_stream_unlink(upload_stream *s) { pa_assert(s); if (!s->connection) return; pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s); s->connection = NULL; upload_stream_unref(s); } static void upload_stream_free(pa_object *o) { upload_stream *s = UPLOAD_STREAM(o); pa_assert(s); upload_stream_unlink(s); pa_xfree(s->name); if (s->memchunk.memblock) pa_memblock_unref(s->memchunk.memblock); pa_xfree(s); } static upload_stream* upload_stream_new( connection *c, const pa_sample_spec *ss, const pa_channel_map *map, const char *name, size_t length) { upload_stream *s; pa_assert(c); pa_assert(ss); pa_assert(name); pa_assert(length > 0); s = pa_msgobject_new(upload_stream); s->parent.parent.parent.free = upload_stream_free; s->connection = c; s->sample_spec = *ss; s->channel_map = *map; s->name = pa_xstrdup(name); pa_memchunk_reset(&s->memchunk); s->length = length; pa_idxset_put(c->output_streams, s, &s->index); return s; } static void record_stream_unlink(record_stream *s) { pa_assert(s); if (!s->connection) return; if (s->source_output) { pa_source_output_unlink(s->source_output); pa_source_output_unref(s->source_output); s->source_output = NULL; } pa_assert_se(pa_idxset_remove_by_data(s->connection->record_streams, s, NULL) == s); s->connection = NULL; record_stream_unref(s); } static void record_stream_free(pa_object *o) { record_stream *s = RECORD_STREAM(o); pa_assert(s); record_stream_unlink(s); pa_memblockq_free(s->memblockq); pa_xfree(s); } static int record_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) { record_stream *s = RECORD_STREAM(o); record_stream_assert_ref(s); if (!s->connection) return -1; switch (code) { case RECORD_STREAM_MESSAGE_POST_DATA: if (pa_memblockq_push_align(s->memblockq, chunk) < 0) { /* pa_log_warn("Failed to push data into output queue."); */ return -1; } if (!pa_pstream_is_pending(s->connection->pstream)) send_memblock(s->connection); break; } return 0; } static record_stream* record_stream_new( connection *c, pa_source *source, const pa_sample_spec *ss, const pa_channel_map *map, const char *name, uint32_t *maxlength, uint32_t fragment_size, int corked) { record_stream *s; pa_source_output *source_output; size_t base; pa_source_output_new_data data; pa_assert(c); pa_assert(ss); pa_assert(name); pa_assert(maxlength); pa_assert(*maxlength > 0); pa_source_output_new_data_init(&data); data.module = c->protocol->module; data.client = c->client; 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); if (!(source_output = pa_source_output_new(c->protocol->core, &data, corked ? PA_SOURCE_OUTPUT_START_CORKED : 0))) return NULL; s = pa_msgobject_new(record_stream); s->parent.parent.free = record_stream_free; s->parent.process_msg = record_stream_process_msg; 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); s->fragment_size = (fragment_size/base)*base; if (s->fragment_size <= 0) s->fragment_size = base; *maxlength = pa_memblockq_get_maxlength(s->memblockq); pa_idxset_put(c->record_streams, s, &s->index); pa_source_output_put(s->source_output); return s; } static void playback_stream_unlink(playback_stream *s) { pa_assert(s); if (!s->connection) return; if (s->sink_input) { pa_sink_input_unlink(s->sink_input); pa_sink_input_unref(s->sink_input); s->sink_input = NULL; } if (s->drain_request) pa_pstream_send_error(s->connection->pstream, s->drain_tag, PA_ERR_NOENTITY); pa_assert_se(pa_idxset_remove_by_data(s->connection->output_streams, s, NULL) == s); s->connection = NULL; playback_stream_unref(s); } static void playback_stream_free(pa_object* o) { playback_stream *s = PLAYBACK_STREAM(o); pa_assert(s); playback_stream_unlink(s); pa_memblockq_free(s->memblockq); pa_xfree(s); } static int playback_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) { playback_stream *s = PLAYBACK_STREAM(o); playback_stream_assert_ref(s); if (!s->connection) return -1; switch (code) { case PLAYBACK_STREAM_MESSAGE_REQUEST_DATA: { pa_tagstruct *t; uint32_t l = 0; for (;;) { int32_t k; if ((k = pa_atomic_load(&s->missing)) <= 0) break; l += k; if (l < s->minreq) break; if (pa_atomic_sub(&s->missing, k) <= k) break; } if (l < s->minreq) break; t = pa_tagstruct_new(NULL, 0); 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); */ break; } case PLAYBACK_STREAM_MESSAGE_UNDERFLOW: { 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); break; } case PLAYBACK_STREAM_MESSAGE_OVERFLOW: { pa_tagstruct *t; /* Notify the user we're overflowed*/ 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, s->index); pa_pstream_send_tagstruct(s->connection->pstream, t); break; } case PLAYBACK_STREAM_MESSAGE_DRAIN_ACK: pa_pstream_send_simple_ack(s->connection->pstream, PA_PTR_TO_UINT(userdata)); break; } return 0; } static playback_stream* playback_stream_new( connection *c, pa_sink *sink, const pa_sample_spec *ss, const pa_channel_map *map, const char *name, uint32_t *maxlength, uint32_t *tlength, uint32_t *prebuf, uint32_t *minreq, pa_cvolume *volume, uint32_t syncid, int corked, uint32_t *missing) { 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; pa_assert(c); pa_assert(ss); pa_assert(name); pa_assert(maxlength); /* Find syncid group */ for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) { if (!playback_stream_isinstance(ssync)) continue; if (ssync->syncid == syncid) break; } /* Synced streams must connect to the same sink */ if (ssync) { if (!sink) sink = ssync->sink_input->sink; else if (sink != ssync->sink_input->sink) return NULL; } 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; data.sync_base = ssync ? ssync->sink_input : NULL; if (!(sink_input = pa_sink_input_new(c->protocol->core, &data, corked ? PA_SINK_INPUT_START_CORKED : 0))) return NULL; s = pa_msgobject_new(playback_stream); s->parent.parent.parent.free = playback_stream_free; s->parent.parent.process_msg = playback_stream_process_msg; s->connection = c; s->syncid = syncid; s->sink_input = sink_input; s->underrun = 1; s->sink_input->parent.process_msg = sink_input_process_msg; 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->userdata = s; start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 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); *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq); *tlength = (uint32_t) pa_memblockq_get_tlength(s->memblockq); *prebuf = (uint32_t) pa_memblockq_get_prebuf(s->memblockq); *minreq = (uint32_t) pa_memblockq_get_minreq(s->memblockq); *missing = (uint32_t) pa_memblockq_pop_missing(s->memblockq); s->minreq = pa_memblockq_get_minreq(s->memblockq); pa_atomic_store(&s->missing, 0); s->drain_request = 0; pa_idxset_put(c->output_streams, s, &s->index); pa_sink_input_put(s->sink_input); return s; } static int connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) { connection *c = CONNECTION(o); connection_assert_ref(c); if (!c->protocol) return -1; switch (code) { case CONNECTION_MESSAGE_REVOKE: pa_pstream_send_revoke(c->pstream, PA_PTR_TO_UINT(userdata)); break; case CONNECTION_MESSAGE_RELEASE: pa_pstream_send_release(c->pstream, PA_PTR_TO_UINT(userdata)); break; } return 0; } static void connection_unlink(connection *c) { record_stream *r; output_stream *o; pa_assert(c); if (!c->protocol) return; while ((r = pa_idxset_first(c->record_streams, NULL))) record_stream_unlink(r); while ((o = pa_idxset_first(c->output_streams, NULL))) if (playback_stream_isinstance(o)) playback_stream_unlink(PLAYBACK_STREAM(o)); else upload_stream_unlink(UPLOAD_STREAM(o)); if (c->subscription) pa_subscription_free(c->subscription); if (c->pstream) pa_pstream_unlink(c->pstream); if (c->auth_timeout_event) { c->protocol->core->mainloop->time_free(c->auth_timeout_event); c->auth_timeout_event = NULL; } pa_assert_se(pa_idxset_remove_by_data(c->protocol->connections, c, NULL) == c); c->protocol = NULL; connection_unref(c); } static void connection_free(pa_object *o) { connection *c = CONNECTION(o); pa_assert(c); connection_unlink(c); pa_idxset_free(c->record_streams, NULL, NULL); pa_idxset_free(c->output_streams, NULL, NULL); pa_pdispatch_unref(c->pdispatch); pa_pstream_unref(c->pstream); pa_client_free(c->client); pa_xfree(c); } /* Called from thread context */ static void request_bytes(playback_stream *s) { size_t m, previous_missing; playback_stream_assert_ref(s); m = pa_memblockq_pop_missing(s->memblockq); if (m <= 0) return; /* pa_log("request_bytes(%u)", m); */ previous_missing = pa_atomic_add(&s->missing, m); if (previous_missing < s->minreq && previous_missing+m >= s->minreq) { pa_assert(pa_thread_mq_get()); pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL); } } static void send_memblock(connection *c) { uint32_t start; record_stream *r; start = PA_IDXSET_INVALID; for (;;) { pa_memchunk chunk; if (!(r = RECORD_STREAM(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, schunk.length); pa_memblock_unref(schunk.memblock); return; } } } static void send_playback_stream_killed(playback_stream *p) { pa_tagstruct *t; playback_stream_assert_ref(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(record_stream *r) { pa_tagstruct *t; record_stream_assert_ref(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); } /*** sink input callbacks ***/ /* Called from thread context */ static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) { pa_sink_input *i = PA_SINK_INPUT(o); playback_stream *s; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); switch (code) { case SINK_INPUT_MESSAGE_SEEK: pa_memblockq_seek(s->memblockq, offset, PA_PTR_TO_UINT(userdata)); request_bytes(s); return 0; case SINK_INPUT_MESSAGE_POST_DATA: { pa_assert(chunk); /* pa_log("sink input post: %u", chunk->length); */ if (pa_memblockq_push_align(s->memblockq, chunk) < 0) { pa_log_warn("Failed to push data into queue"); pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_OVERFLOW, NULL, 0, NULL, NULL); pa_memblockq_seek(s->memblockq, chunk->length, PA_SEEK_RELATIVE); } request_bytes(s); s->underrun = 0; return 0; } case SINK_INPUT_MESSAGE_DRAIN: { pa_memblockq_prebuf_disable(s->memblockq); if (!pa_memblockq_is_readable(s->memblockq)) pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_DRAIN_ACK, userdata, 0, NULL, NULL); else { s->drain_tag = PA_PTR_TO_UINT(userdata); s->drain_request = 1; } request_bytes(s); return 0; } case SINK_INPUT_MESSAGE_FLUSH: case SINK_INPUT_MESSAGE_PREBUF_FORCE: case SINK_INPUT_MESSAGE_TRIGGER: { pa_sink_input *isync; void (*func)(pa_memblockq *bq); switch (code) { case SINK_INPUT_MESSAGE_FLUSH: func = pa_memblockq_flush; break; case SINK_INPUT_MESSAGE_PREBUF_FORCE: func = pa_memblockq_prebuf_force; break; case SINK_INPUT_MESSAGE_TRIGGER: func = pa_memblockq_prebuf_disable; break; default: pa_assert_not_reached(); } func(s->memblockq); s->underrun = 0; request_bytes(s); /* Do the same for all other members in the sync group */ for (isync = i->sync_prev; isync; isync = isync->sync_prev) { playback_stream *ssync = PLAYBACK_STREAM(isync->userdata); func(ssync->memblockq); ssync->underrun = 0; request_bytes(ssync); } for (isync = i->sync_next; isync; isync = isync->sync_next) { playback_stream *ssync = PLAYBACK_STREAM(isync->userdata); func(ssync->memblockq); ssync->underrun = 0; request_bytes(ssync); } return 0; } case SINK_INPUT_MESSAGE_UPDATE_LATENCY: s->read_index = pa_memblockq_get_read_index(s->memblockq); s->write_index = pa_memblockq_get_write_index(s->memblockq); s->resampled_chunk_length = s->sink_input->thread_info.resampled_chunk.memblock ? s->sink_input->thread_info.resampled_chunk.length : 0; return 0; case PA_SINK_INPUT_MESSAGE_SET_STATE: pa_memblockq_prebuf_force(s->memblockq); request_bytes(s); break; case PA_SINK_INPUT_MESSAGE_GET_LATENCY: { pa_usec_t *r = userdata; *r = pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &i->sample_spec); /* Fall through, the default handler will add in the extra * latency added by the resampler */ break; } } return pa_sink_input_process_msg(o, code, userdata, offset, chunk); } /* Called from thread context */ static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) { playback_stream *s; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); pa_assert(chunk); if (pa_memblockq_get_length(s->memblockq) <= 0 && !s->underrun) { pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, 0, NULL, NULL); s->underrun = 1; } if (pa_memblockq_peek(s->memblockq, chunk) < 0) { /* pa_log("peek: failure"); */ return -1; } /* pa_log("peek: %u", chunk->length); */ request_bytes(s); return 0; } /* Called from thread context */ static void sink_input_drop_cb(pa_sink_input *i, size_t length) { playback_stream *s; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); pa_assert(length > 0); pa_memblockq_drop(s->memblockq, length); if (s->drain_request && !pa_memblockq_is_readable(s->memblockq)) { s->drain_request = 0; 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); } request_bytes(s); /* 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) { playback_stream *s; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); send_playback_stream_killed(s); playback_stream_unlink(s); } /*** source_output callbacks ***/ /* Called from thread context */ static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) { record_stream *s; pa_source_output_assert_ref(o); s = RECORD_STREAM(o->userdata); record_stream_assert_ref(s); pa_assert(chunk); pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), RECORD_STREAM_MESSAGE_POST_DATA, NULL, 0, chunk, NULL); } static void source_output_kill_cb(pa_source_output *o) { record_stream *s; pa_source_output_assert_ref(o); s = RECORD_STREAM(o->userdata); record_stream_assert_ref(s); send_record_stream_killed(s); record_stream_unlink(s); } static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { record_stream *s; pa_source_output_assert_ref(o); s = RECORD_STREAM(o->userdata); record_stream_assert_ref(s); /*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(connection *c) { pa_log("protocol error, kicking client"); connection_unlink(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) { connection *c = CONNECTION(userdata); playback_stream *s; uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid, missing; 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; connection_assert_ref(c); pa_assert(t); 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, corked, &missing); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); reply = reply_new(tag); pa_tagstruct_putu32(reply, s->index); pa_assert(s->sink_input); pa_tagstruct_putu32(reply, s->sink_input->index); pa_tagstruct_putu32(reply, missing); /* pa_log("initial request is %u", missing); */ if (c->version >= 9) { /* Since 0.9 we support sending the buffer metrics back to the client */ pa_tagstruct_putu32(reply, (uint32_t) maxlength); pa_tagstruct_putu32(reply, (uint32_t) tlength); pa_tagstruct_putu32(reply, (uint32_t) prebuf); pa_tagstruct_putu32(reply, (uint32_t) minreq); } pa_pstream_send_tagstruct(c->pstream, reply); } static void command_delete_stream(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { connection *c = CONNECTION(userdata); uint32_t channel; connection_assert_ref(c); pa_assert(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); switch (command) { case PA_COMMAND_DELETE_PLAYBACK_STREAM: { playback_stream *s; if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) { pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); return; } playback_stream_unlink(s); break; } case PA_COMMAND_DELETE_RECORD_STREAM: { 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_unlink(s); break; } case PA_COMMAND_DELETE_UPLOAD_STREAM: { upload_stream *s; if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !upload_stream_isinstance(s)) { pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); return; } upload_stream_unlink(s); break; } default: pa_assert_not_reached(); } 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) { connection *c = CONNECTION(userdata); 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; connection_assert_ref(c); pa_assert(t); 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, corked); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); reply = reply_new(tag); pa_tagstruct_putu32(reply, s->index); pa_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) maxlength); 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) { connection *c = CONNECTION(userdata); connection_assert_ref(c); pa_assert(t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); 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) { connection *c = CONNECTION(userdata); const void*cookie; pa_tagstruct *reply; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); const char *name; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); const char *name; uint32_t idx = PA_IDXSET_INVALID; connection_assert_ref(c); pa_assert(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; pa_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) { connection *c = CONNECTION(userdata); uint32_t idx; playback_stream *s; connection_assert_ref(c); pa_assert(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, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); 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); } static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { connection *c = CONNECTION(userdata); pa_tagstruct *reply; const pa_mempool_stat *stat; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); pa_tagstruct *reply; playback_stream *s; struct timeval tv, now; uint32_t idx; pa_usec_t latency; connection_assert_ref(c); pa_assert(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, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); 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) reply = reply_new(tag); latency = pa_sink_get_latency(s->sink_input->sink); latency += pa_bytes_to_usec(s->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, pa_sink_input_get_state(s->sink_input) == PA_SINK_INPUT_RUNNING); pa_tagstruct_put_timeval(reply, &tv); pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now)); pa_tagstruct_puts64(reply, s->write_index); pa_tagstruct_puts64(reply, s->read_index); 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) { connection *c = CONNECTION(userdata); pa_tagstruct *reply; record_stream *s; struct timeval tv, now; uint32_t idx; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); upload_stream *s; uint32_t length; const char *name; pa_sample_spec ss; pa_channel_map map; pa_tagstruct *reply; connection_assert_ref(c); pa_assert(t); 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) { connection *c = CONNECTION(userdata); uint32_t channel; upload_stream *s; uint32_t idx; connection_assert_ref(c); pa_assert(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, upload_stream_isinstance(s), 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_unlink(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) { connection *c = CONNECTION(userdata); uint32_t sink_index; pa_volume_t volume; pa_sink *sink; const char *name, *sink_name; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); const char *name; connection_assert_ref(c); pa_assert(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) { pa_assert(t); pa_sink_assert_ref(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->module ? sink->module->index : PA_INVALID_INDEX, PA_TAG_CVOLUME, pa_sink_get_volume(sink), PA_TAG_BOOLEAN, pa_sink_get_mute(sink), 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->flags, PA_TAG_INVALID); } static void source_fill_tagstruct(pa_tagstruct *t, pa_source *source) { pa_assert(t); pa_source_assert_ref(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->module ? source->module->index : PA_INVALID_INDEX, PA_TAG_CVOLUME, pa_source_get_volume(source), PA_TAG_BOOLEAN, pa_source_get_mute(source), 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->flags, PA_TAG_INVALID); } static void client_fill_tagstruct(pa_tagstruct *t, pa_client *client) { pa_assert(t); pa_assert(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) { pa_assert(t); pa_assert(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(connection *c, pa_tagstruct *t, pa_sink_input *s) { pa_assert(t); pa_sink_input_assert_ref(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); if (c->version >= 11) pa_tagstruct_put_boolean(t, pa_sink_input_get_mute(s)); } static void source_output_fill_tagstruct(pa_tagstruct *t, pa_source_output *s) { pa_assert(t); pa_source_output_assert_ref(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) { pa_assert(t); pa_assert(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) { connection *c = CONNECTION(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; connection_assert_ref(c); pa_assert(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 { pa_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(c, 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) { connection *c = CONNECTION(userdata); pa_idxset *i; uint32_t idx; void *p; pa_tagstruct *reply; connection_assert_ref(c); pa_assert(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 { pa_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(c, reply, p); else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) source_output_fill_tagstruct(reply, p); else { pa_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) { connection *c = CONNECTION(userdata); pa_tagstruct *reply; char txt[256]; const char *n; connection_assert_ref(c); pa_assert(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; connection *c = CONNECTION(userdata); connection_assert_ref(c); 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) { connection *c = CONNECTION(userdata); pa_subscription_mask_t m; connection_assert_ref(c); pa_assert(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); pa_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) { connection *c = CONNECTION(userdata); uint32_t idx; pa_cvolume volume; pa_sink *sink = NULL; pa_source *source = NULL; pa_sink_input *si = NULL; const char *name = NULL; connection_assert_ref(c); pa_assert(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); switch (command) { case 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); break; case PA_COMMAND_SET_SOURCE_VOLUME: 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); break; case PA_COMMAND_SET_SINK_INPUT_VOLUME: si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); break; default: pa_assert_not_reached(); } CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY); if (sink) pa_sink_set_volume(sink, &volume); else if (source) pa_source_set_volume(source, &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) { connection *c = CONNECTION(userdata); uint32_t idx; int mute; pa_sink *sink = NULL; pa_source *source = NULL; pa_sink_input *si = NULL; const char *name = NULL; connection_assert_ref(c); pa_assert(t); if (pa_tagstruct_getu32(t, &idx) < 0 || (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) || (command == PA_COMMAND_SET_SOURCE_MUTE && 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); switch (command) { case 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); break; case PA_COMMAND_SET_SOURCE_MUTE: 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); break; case PA_COMMAND_SET_SINK_INPUT_MUTE: si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); break; default: pa_assert_not_reached(); } CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY); if (sink) pa_sink_set_mute(sink, mute); else if (source) pa_source_set_mute(source, mute); else if (si) pa_sink_input_set_mute(si, 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) { connection *c = CONNECTION(userdata); uint32_t idx; int b; playback_stream *s; connection_assert_ref(c); pa_assert(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, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); pa_sink_input_cork(s->sink_input, b); pa_pstream_send_simple_ack(c->pstream, tag); } 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) { connection *c = CONNECTION(userdata); uint32_t idx; playback_stream *s; connection_assert_ref(c); pa_assert(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, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); switch (command) { case PA_COMMAND_FLUSH_PLAYBACK_STREAM: pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL); break; case PA_COMMAND_PREBUF_PLAYBACK_STREAM: pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL); break; case PA_COMMAND_TRIGGER_PLAYBACK_STREAM: pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL); break; default: pa_assert_not_reached(); } pa_pstream_send_simple_ack(c->pstream, tag); } 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) { connection *c = CONNECTION(userdata); uint32_t idx; record_stream *s; int b; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); uint32_t idx; record_stream *s; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); const char *s; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); uint32_t idx; const char *name; connection_assert_ref(c); pa_assert(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) { 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, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); pa_sink_input_set_name(s->sink_input, name); } else { 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) { connection *c = CONNECTION(userdata); uint32_t idx; connection_assert_ref(c); pa_assert(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); connection_ref(c); 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); connection_ref(c); pa_sink_input_kill(s); } else { pa_source_output *s; pa_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); connection_ref(c); pa_source_output_kill(s); } pa_pstream_send_simple_ack(c->pstream, tag); connection_unref(c); } 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) { connection *c = CONNECTION(userdata); pa_module *m; const char *name, *argument; pa_tagstruct *reply; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); uint32_t idx; pa_module *m; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); const char *name, *module, *argument; uint32_t type; uint32_t idx; pa_tagstruct *reply; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); const char *name = NULL; uint32_t type, idx = PA_IDXSET_INVALID; int r; connection_assert_ref(c); pa_assert(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) { pa_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) { connection *c = CONNECTION(userdata); const pa_autoload_entry *a = NULL; uint32_t type, idx; const char *name; pa_tagstruct *reply; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); pa_tagstruct *reply; connection_assert_ref(c); pa_assert(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) { connection *c = CONNECTION(userdata); uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX; const char *name = NULL; connection_assert_ref(c); pa_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; pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT); 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); } static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { connection *c = CONNECTION(userdata); uint32_t idx = PA_INVALID_INDEX; const char *name = NULL; int b; connection_assert_ref(c); pa_assert(t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_gets(t, &name) < 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 || !name || !*name || pa_utf8_valid(name), tag, PA_ERR_INVALID); if (command == PA_COMMAND_SUSPEND_SINK) { if (idx == PA_INVALID_INDEX && name && !*name) { if (pa_sink_suspend_all(c->protocol->core, b) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); return; } } else { pa_sink *sink = NULL; 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); CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); if (pa_sink_suspend(sink, b) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); return; } } } else { pa_assert(command == PA_COMMAND_SUSPEND_SOURCE); if (idx == PA_INVALID_INDEX && name && !*name) { if (pa_source_suspend_all(c->protocol->core, b) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); return; } } else { pa_source *source; 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); CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); if (pa_source_suspend(source, b) < 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) { connection *c = CONNECTION(userdata); pa_assert(p); pa_assert(packet); connection_assert_ref(c); if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) { pa_log("invalid packet."); connection_unlink(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) { connection *c = CONNECTION(userdata); output_stream *stream; pa_assert(p); pa_assert(chunk); connection_assert_ref(c); if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) { pa_log("client sent block for invalid stream."); /* Ignoring */ return; } if (playback_stream_isinstance(stream)) { playback_stream *ps = PLAYBACK_STREAM(stream); if (seek != PA_SEEK_RELATIVE || offset != 0) 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); pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL); } else { upload_stream *u = UPLOAD_STREAM(stream); size_t l; 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; } } pa_assert(u->memchunk.memblock); l = u->length; if (l > chunk->length) l = chunk->length; if (l > 0) { void *src, *dst; dst = pa_memblock_acquire(u->memchunk.memblock); src = pa_memblock_acquire(chunk->memblock); memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length, (uint8_t*) src+chunk->index, l); pa_memblock_release(u->memchunk.memblock); pa_memblock_release(chunk->memblock); u->memchunk.length += l; u->length -= l; } } } static void pstream_die_callback(pa_pstream *p, void *userdata) { connection *c = CONNECTION(userdata); pa_assert(p); connection_assert_ref(c); connection_unlink(c); pa_log_info("connection died."); } static void pstream_drain_callback(pa_pstream *p, void *userdata) { connection *c = CONNECTION(userdata); pa_assert(p); connection_assert_ref(c); send_memblock(c); } static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) { pa_thread_mq *q; if (!(q = pa_thread_mq_get())) pa_pstream_send_revoke(p, block_id); else pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL); } static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) { pa_thread_mq *q; if (!(q = pa_thread_mq_get())) pa_pstream_send_release(p, block_id); else pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL); } /*** client callbacks ***/ static void client_kill_cb(pa_client *c) { pa_assert(c); connection_unlink(CONNECTION(c->userdata)); } /*** socket server callbacks ***/ static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { connection *c = CONNECTION(userdata); pa_assert(m); pa_assert(tv); connection_assert_ref(c); pa_assert(c->auth_timeout_event == e); if (!c->authorized) connection_unlink(c); } static void on_connection(PA_GCC_UNUSED pa_socket_server*s, pa_iochannel *io, void *userdata) { pa_protocol_native *p = userdata; connection *c; char cname[256], pname[128]; pa_assert(s); pa_assert(io); pa_assert(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_msgobject_new(connection); c->parent.parent.free = connection_free; c->parent.process_msg = connection_process_msg; 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)); pa_snprintf(cname, sizeof(cname), "Native client (%s)", pname); c->client = pa_client_new(p->core, __FILE__, cname); 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); 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); pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c); pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c); c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX); c->record_streams = pa_idxset_new(NULL, NULL); c->output_streams = pa_idxset_new(NULL, NULL); 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) { pa_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; pa_assert(c); pa_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); 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) { connection *c; pa_assert(p); while ((c = pa_idxset_first(p->connections, NULL))) connection_unlink(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; }