/*** 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 "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 */ #define DEFAULT_TLENGTH_MSEC 2000 /* 2s */ #define DEFAULT_PROCESS_MSEC 20 /* 20ms */ #define DEFAULT_FRAGSIZE_MSEC DEFAULT_TLENGTH_MSEC struct pa_native_protocol; typedef struct record_stream { pa_msgobject parent; pa_native_connection *connection; uint32_t index; pa_source_output *source_output; pa_memblockq *memblockq; size_t fragment_size; pa_usec_t source_latency; } record_stream; PA_DECLARE_CLASS(record_stream); #define RECORD_STREAM(o) (record_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(record_stream, pa_msgobject); typedef struct output_stream { pa_msgobject parent; } output_stream; PA_DECLARE_CLASS(output_stream); #define OUTPUT_STREAM(o) (output_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(output_stream, pa_msgobject); typedef struct playback_stream { output_stream parent; pa_native_connection *connection; uint32_t index; pa_sink_input *sink_input; pa_memblockq *memblockq; pa_bool_t is_underrun:1; pa_bool_t drain_request:1; uint32_t drain_tag; uint32_t syncid; pa_atomic_t missing; size_t minreq; pa_usec_t sink_latency; /* Only updated after SINK_INPUT_MESSAGE_UPDATE_LATENCY */ int64_t read_index, write_index; size_t render_memblockq_length; } playback_stream; PA_DECLARE_CLASS(playback_stream); #define PLAYBACK_STREAM(o) (playback_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(playback_stream, output_stream); typedef struct upload_stream { output_stream parent; pa_native_connection *connection; uint32_t index; pa_memchunk memchunk; size_t length; char *name; pa_sample_spec sample_spec; pa_channel_map channel_map; pa_proplist *proplist; } upload_stream; PA_DECLARE_CLASS(upload_stream); #define UPLOAD_STREAM(o) (upload_stream_cast(o)) static PA_DEFINE_CHECK_TYPE(upload_stream, output_stream); struct pa_native_connection { pa_msgobject parent; pa_native_protocol *protocol; pa_native_options *options; pa_bool_t authorized:1; pa_bool_t is_local:1; uint32_t version; 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(pa_native_connection); #define PA_NATIVE_CONNECTION(o) (pa_native_connection_cast(o)) static PA_DEFINE_CHECK_TYPE(pa_native_connection, pa_msgobject); struct pa_native_protocol { PA_REFCNT_DECLARE; pa_core *core; pa_idxset *connections; pa_strlist *servers; pa_hook hooks[PA_NATIVE_HOOK_MAX]; pa_hashmap *extensions; }; 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, PLAYBACK_STREAM_MESSAGE_STARTED }; enum { RECORD_STREAM_MESSAGE_POST_DATA /* data from source output to main loop */ }; enum { CONNECTION_MESSAGE_RELEASE, CONNECTION_MESSAGE_REVOKE }; static int sink_input_pop_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk); static void sink_input_kill_cb(pa_sink_input *i); static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend); static void sink_input_moved_cb(pa_sink_input *i); static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes); static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes); static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes); static void native_connection_send_memblock(pa_native_connection *c); static void playback_stream_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 void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend); static void source_output_moved_cb(pa_source_output *o); 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 void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static void command_extension(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, [PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr, [PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr, [PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate, [PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate, [PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST] = command_update_proplist, [PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST] = command_update_proplist, [PA_COMMAND_UPDATE_CLIENT_PROPLIST] = command_update_proplist, [PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST] = command_remove_proplist, [PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST] = command_remove_proplist, [PA_COMMAND_REMOVE_CLIENT_PROPLIST] = command_remove_proplist, [PA_COMMAND_EXTENSION] = command_extension }; /* 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->proplist) pa_proplist_free(s->proplist); if (s->memchunk.memblock) pa_memblock_unref(s->memchunk.memblock); pa_xfree(s); } static upload_stream* upload_stream_new( pa_native_connection *c, const pa_sample_spec *ss, const pa_channel_map *map, const char *name, size_t length, pa_proplist *p) { upload_stream *s; pa_assert(c); pa_assert(ss); pa_assert(name); pa_assert(length > 0); pa_assert(p); 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; s->proplist = pa_proplist_copy(p); pa_proplist_update(s->proplist, PA_UPDATE_MERGE, c->client->proplist); 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)) native_connection_send_memblock(s->connection); break; } return 0; } static void fix_record_buffer_attr_pre( record_stream *s, pa_bool_t adjust_latency, pa_bool_t early_requests, uint32_t *maxlength, uint32_t *fragsize) { size_t frame_size; pa_usec_t orig_fragsize_usec, fragsize_usec, source_usec; pa_assert(s); pa_assert(maxlength); pa_assert(fragsize); frame_size = pa_frame_size(&s->source_output->sample_spec); if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH) *maxlength = MAX_MEMBLOCKQ_LENGTH; if (*maxlength <= 0) *maxlength = (uint32_t) frame_size; if (*fragsize == (uint32_t) -1) *fragsize = (uint32_t) pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*PA_USEC_PER_MSEC, &s->source_output->sample_spec); if (*fragsize <= 0) *fragsize = (uint32_t) frame_size; orig_fragsize_usec = fragsize_usec = pa_bytes_to_usec(*fragsize, &s->source_output->sample_spec); if (early_requests) { /* In early request mode we need to emulate the classic * fragment-based playback model. We do this setting the source * latency to the fragment size. */ source_usec = fragsize_usec; } else if (adjust_latency) { /* So, the user asked us to adjust the latency according to * what the source can provide. Half the latency will be * spent on the hw buffer, half of it in the async buffer * queue we maintain for each client. */ source_usec = fragsize_usec/2; } else { /* Ok, the user didn't ask us to adjust the latency, hence we * don't */ source_usec = 0; } if (source_usec > 0) s->source_latency = pa_source_output_set_requested_latency(s->source_output, source_usec); else s->source_latency = 0; if (early_requests) { /* Ok, we didn't necessarily get what we were asking for, so * let's tell the user */ fragsize_usec = s->source_latency; } else if (adjust_latency) { /* Now subtract what we actually got */ if (fragsize_usec >= s->source_latency*2) fragsize_usec -= s->source_latency; else fragsize_usec = s->source_latency; } if (pa_usec_to_bytes(orig_fragsize_usec, &s->source_output->sample_spec) != pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec)) *fragsize = (uint32_t) pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec); if (*fragsize <= 0) *fragsize = (uint32_t) frame_size; } static void fix_record_buffer_attr_post( record_stream *s, uint32_t *maxlength, uint32_t *fragsize) { size_t base; pa_assert(s); pa_assert(maxlength); pa_assert(fragsize); *maxlength = (uint32_t) pa_memblockq_get_maxlength(s->memblockq); base = pa_frame_size(&s->source_output->sample_spec); s->fragment_size = (*fragsize/base)*base; if (s->fragment_size <= 0) s->fragment_size = base; if (s->fragment_size > *maxlength) s->fragment_size = *maxlength; *fragsize = (uint32_t) s->fragment_size; } static record_stream* record_stream_new( pa_native_connection *c, pa_source *source, pa_sample_spec *ss, pa_channel_map *map, pa_bool_t peak_detect, uint32_t *maxlength, uint32_t *fragsize, pa_source_output_flags_t flags, pa_proplist *p, pa_bool_t adjust_latency, pa_sink_input *direct_on_input, pa_bool_t early_requests) { 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(maxlength); pa_assert(p); pa_source_output_new_data_init(&data); pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p); pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist); data.driver = __FILE__; data.module = c->options->module; data.client = c->client; data.source = source; data.direct_on_input = direct_on_input; pa_source_output_new_data_set_sample_spec(&data, ss); pa_source_output_new_data_set_channel_map(&data, map); if (peak_detect) data.resample_method = PA_RESAMPLER_PEAKS; source_output = pa_source_output_new(c->protocol->core, &data, flags); pa_source_output_new_data_done(&data); if (!source_output) 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->moved = source_output_moved_cb; s->source_output->suspend = source_output_suspend_cb; s->source_output->userdata = s; fix_record_buffer_attr_pre(s, adjust_latency, early_requests, maxlength, fragsize); s->memblockq = pa_memblockq_new( 0, *maxlength, 0, base = pa_frame_size(&source_output->sample_spec), 1, 0, 0, NULL); fix_record_buffer_attr_post(s, maxlength, fragsize); *ss = s->source_output->sample_spec; *map = s->source_output->channel_map; pa_idxset_put(c->record_streams, s, &s->index); pa_log_info("Final latency %0.2f ms = %0.2f ms + %0.2f ms", ((double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) + (double) s->source_latency) / PA_USEC_PER_MSEC, (double) pa_bytes_to_usec(s->fragment_size, &source_output->sample_spec) / PA_USEC_PER_MSEC, (double) s->source_latency / PA_USEC_PER_MSEC); pa_source_output_put(s->source_output); return s; } static void record_stream_send_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); } 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 (;;) { if ((l = (uint32_t) pa_atomic_load(&s->missing)) <= 0) break; if (pa_atomic_cmpxchg(&s->missing, (int) l, 0)) break; } if (l <= 0) 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 %lu bytes", (unsigned long) l); */ break; } case PLAYBACK_STREAM_MESSAGE_UNDERFLOW: { pa_tagstruct *t; /* pa_log("signalling underflow"); */ /* 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_STARTED: if (s->connection->version >= 13) { pa_tagstruct *t; /* Notify the user we're overflowed*/ t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_STARTED); 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 void fix_playback_buffer_attr_pre( playback_stream *s, pa_bool_t adjust_latency, pa_bool_t early_requests, uint32_t *maxlength, uint32_t *tlength, uint32_t* prebuf, uint32_t* minreq) { size_t frame_size; pa_usec_t orig_tlength_usec, tlength_usec, orig_minreq_usec, minreq_usec, sink_usec; pa_assert(s); pa_assert(maxlength); pa_assert(tlength); pa_assert(prebuf); pa_assert(minreq); frame_size = pa_frame_size(&s->sink_input->sample_spec); if (*maxlength == (uint32_t) -1 || *maxlength > MAX_MEMBLOCKQ_LENGTH) *maxlength = MAX_MEMBLOCKQ_LENGTH; if (*maxlength <= 0) *maxlength = (uint32_t) frame_size; if (*tlength == (uint32_t) -1) *tlength = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_TLENGTH_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec); if (*tlength <= 0) *tlength = (uint32_t) frame_size; if (*minreq == (uint32_t) -1) *minreq = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_PROCESS_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec); if (*minreq <= 0) *minreq = (uint32_t) frame_size; if (*tlength < *minreq+frame_size) *tlength = *minreq+(uint32_t) frame_size; orig_tlength_usec = tlength_usec = pa_bytes_to_usec(*tlength, &s->sink_input->sample_spec); orig_minreq_usec = minreq_usec = pa_bytes_to_usec(*minreq, &s->sink_input->sample_spec); pa_log_info("Requested tlength=%0.2f ms, minreq=%0.2f ms", (double) tlength_usec / PA_USEC_PER_MSEC, (double) minreq_usec / PA_USEC_PER_MSEC); if (early_requests) { /* In early request mode we need to emulate the classic * fragment-based playback model. We do this setting the sink * latency to the fragment size. */ sink_usec = minreq_usec; pa_log_debug("Early requests mode enabled, configuring sink latency to minreq."); } else if (adjust_latency) { /* So, the user asked us to adjust the latency of the stream * buffer according to the what the sink can provide. The * tlength passed in shall be the overall latency. Roughly * half the latency will be spent on the hw buffer, the other * half of it in the async buffer queue we maintain for each * client. In between we'll have a safety space of size * 2*minreq. Why the 2*minreq? When the hw buffer is completey * empty and needs to be filled, then our buffer must have * enough data to fulfill this request immediatly and thus * have at least the same tlength as the size of the hw * buffer. It additionally needs space for 2 times minreq * because if the buffer ran empty and a partial fillup * happens immediately on the next iteration we need to be * able to fulfill it and give the application also minreq * time to fill it up again for the next request Makes 2 times * minreq in plus.. */ if (tlength_usec > minreq_usec*2) sink_usec = (tlength_usec - minreq_usec*2)/2; else sink_usec = 0; pa_log_debug("Adjust latency mode enabled, configuring sink latency to half of overall latency."); } else { /* Ok, the user didn't ask us to adjust the latency, but we * still need to make sure that the parameters from the user * do make sense. */ if (tlength_usec > minreq_usec*2) sink_usec = (tlength_usec - minreq_usec*2); else sink_usec = 0; pa_log_debug("Traditional mode enabled, modifying sink usec only for compat with minreq."); } s->sink_latency = pa_sink_input_set_requested_latency(s->sink_input, sink_usec); if (early_requests) { /* Ok, we didn't necessarily get what we were asking for, so * let's tell the user */ minreq_usec = s->sink_latency; } else if (adjust_latency) { /* Ok, we didn't necessarily get what we were asking for, so * let's subtract from what we asked for for the remaining * buffer space */ if (tlength_usec >= s->sink_latency) tlength_usec -= s->sink_latency; } /* FIXME: This is actually larger than necessary, since not all of * the sink latency is actually rewritable. */ if (tlength_usec < s->sink_latency + 2*minreq_usec) tlength_usec = s->sink_latency + 2*minreq_usec; if (pa_usec_to_bytes_round_up(orig_tlength_usec, &s->sink_input->sample_spec) != pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec)) *tlength = (uint32_t) pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec); if (pa_usec_to_bytes(orig_minreq_usec, &s->sink_input->sample_spec) != pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec)) *minreq = (uint32_t) pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec); if (*minreq <= 0) { *minreq = (uint32_t) frame_size; *tlength += (uint32_t) frame_size*2; } if (*tlength <= *minreq) *tlength = *minreq*2 + (uint32_t) frame_size; if (*prebuf == (uint32_t) -1 || *prebuf > *tlength) *prebuf = *tlength; } static void fix_playback_buffer_attr_post( playback_stream *s, uint32_t *maxlength, uint32_t *tlength, uint32_t* prebuf, uint32_t* minreq) { pa_assert(s); pa_assert(maxlength); pa_assert(tlength); pa_assert(prebuf); pa_assert(minreq); *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); s->minreq = *minreq; } static playback_stream* playback_stream_new( pa_native_connection *c, pa_sink *sink, pa_sample_spec *ss, pa_channel_map *map, uint32_t *maxlength, uint32_t *tlength, uint32_t *prebuf, uint32_t *minreq, pa_cvolume *volume, pa_bool_t muted, uint32_t syncid, uint32_t *missing, pa_sink_input_flags_t flags, pa_proplist *p, pa_bool_t adjust_latency, pa_bool_t early_requests) { playback_stream *s, *ssync; pa_sink_input *sink_input; pa_memchunk silence; uint32_t idx; int64_t start_index; pa_sink_input_new_data data; pa_assert(c); pa_assert(ss); pa_assert(maxlength); pa_assert(tlength); pa_assert(prebuf); pa_assert(minreq); pa_assert(missing); pa_assert(p); /* 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); pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p); pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist); data.driver = __FILE__; data.module = c->options->module; data.client = c->client; data.sink = sink; pa_sink_input_new_data_set_sample_spec(&data, ss); pa_sink_input_new_data_set_channel_map(&data, map); if (volume) pa_sink_input_new_data_set_volume(&data, volume); pa_sink_input_new_data_set_muted(&data, muted); data.sync_base = ssync ? ssync->sink_input : NULL; sink_input = pa_sink_input_new(c->protocol->core, &data, flags); pa_sink_input_new_data_done(&data); if (!sink_input) 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->is_underrun = TRUE; s->drain_request = FALSE; pa_atomic_store(&s->missing, 0); s->sink_input->parent.process_msg = sink_input_process_msg; s->sink_input->pop = sink_input_pop_cb; s->sink_input->process_rewind = sink_input_process_rewind_cb; s->sink_input->update_max_rewind = sink_input_update_max_rewind_cb; s->sink_input->update_max_request = sink_input_update_max_request_cb; s->sink_input->kill = sink_input_kill_cb; s->sink_input->moved = sink_input_moved_cb; s->sink_input->suspend = sink_input_suspend_cb; s->sink_input->userdata = s; start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 0; fix_playback_buffer_attr_pre(s, adjust_latency, early_requests, maxlength, tlength, prebuf, minreq); pa_sink_input_get_silence(sink_input, &silence); s->memblockq = pa_memblockq_new( start_index, *maxlength, *tlength, pa_frame_size(&sink_input->sample_spec), *prebuf, *minreq, 0, &silence); pa_memblock_unref(silence.memblock); fix_playback_buffer_attr_post(s, maxlength, tlength, prebuf, minreq); *missing = (uint32_t) pa_memblockq_pop_missing(s->memblockq); *ss = s->sink_input->sample_spec; *map = s->sink_input->channel_map; pa_idxset_put(c->output_streams, s, &s->index); pa_log_info("Final latency %0.2f ms = %0.2f ms + 2*%0.2f ms + %0.2f ms", ((double) pa_bytes_to_usec(*tlength, &sink_input->sample_spec) + (double) s->sink_latency) / PA_USEC_PER_MSEC, (double) pa_bytes_to_usec(*tlength-*minreq*2, &sink_input->sample_spec) / PA_USEC_PER_MSEC, (double) pa_bytes_to_usec(*minreq, &sink_input->sample_spec) / PA_USEC_PER_MSEC, (double) s->sink_latency / PA_USEC_PER_MSEC); pa_sink_input_put(s->sink_input); return s; } /* Called from thread context */ static void playback_stream_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(%lu)", (unsigned long) m); */ previous_missing = (size_t) pa_atomic_add(&s->missing, (int) m); if (pa_memblockq_prebuf_active(s->memblockq) || (previous_missing < s->minreq && previous_missing+m >= s->minreq)) pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL); } static void playback_stream_send_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 int native_connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) { pa_native_connection *c = PA_NATIVE_CONNECTION(o); pa_native_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 native_connection_unlink(pa_native_connection *c) { record_stream *r; output_stream *o; pa_assert(c); if (!c->protocol) return; pa_hook_fire(&c->protocol->hooks[PA_NATIVE_HOOK_CONNECTION_UNLINK], c); if (c->options) pa_native_options_unref(c->options); 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; pa_native_connection_unref(c); } static void native_connection_free(pa_object *o) { pa_native_connection *c = PA_NATIVE_CONNECTION(o); pa_assert(c); native_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); } static void native_connection_send_memblock(pa_native_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; } } } /*** sink input callbacks ***/ static void handle_seek(playback_stream *s, int64_t indexw) { playback_stream_assert_ref(s); /* pa_log("handle_seek: %llu -- %i", (unsigned long long) s->sink_input->thread_info.underrun_for, pa_memblockq_is_readable(s->memblockq)); */ if (s->sink_input->thread_info.underrun_for > 0) { /* pa_log("%lu vs. %lu", (unsigned long) pa_memblockq_get_length(s->memblockq), (unsigned long) pa_memblockq_get_prebuf(s->memblockq)); */ if (pa_memblockq_is_readable(s->memblockq)) { /* We just ended an underrun, let's ask the sink * for a complete rewind rewrite */ pa_log_debug("Requesting rewind due to end of underrun."); pa_sink_input_request_rewind(s->sink_input, (size_t) (s->sink_input->thread_info.underrun_for == (size_t) -1 ? 0 : s->sink_input->thread_info.underrun_for), FALSE, TRUE); } } else { int64_t indexr; indexr = pa_memblockq_get_read_index(s->memblockq); if (indexw < indexr) { /* OK, the sink already asked for this data, so * let's have it usk us again */ pa_log_debug("Requesting rewind due to rewrite."); pa_sink_input_request_rewind(s->sink_input, (size_t) (indexr - indexw), TRUE, FALSE); } } playback_stream_request_bytes(s); } /* 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: { int64_t windex; windex = pa_memblockq_get_write_index(s->memblockq); pa_memblockq_seek(s->memblockq, offset, PA_PTR_TO_UINT(userdata)); handle_seek(s, windex); return 0; } case SINK_INPUT_MESSAGE_POST_DATA: { int64_t windex; pa_assert(chunk); windex = pa_memblockq_get_write_index(s->memblockq); /* pa_log("sink input post: %lu %lli", (unsigned long) chunk->length, (long long) windex); */ 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, (int64_t) chunk->length, PA_SEEK_RELATIVE); } handle_seek(s, windex); /* pa_log("sink input post2: %lu", (unsigned long) pa_memblockq_get_length(s->memblockq)); */ return 0; } case SINK_INPUT_MESSAGE_DRAIN: case SINK_INPUT_MESSAGE_FLUSH: case SINK_INPUT_MESSAGE_PREBUF_FORCE: case SINK_INPUT_MESSAGE_TRIGGER: { int64_t windex; pa_sink_input *isync; void (*func)(pa_memblockq *bq); switch (code) { case SINK_INPUT_MESSAGE_FLUSH: func = pa_memblockq_flush_write; break; case SINK_INPUT_MESSAGE_PREBUF_FORCE: func = pa_memblockq_prebuf_force; break; case SINK_INPUT_MESSAGE_DRAIN: case SINK_INPUT_MESSAGE_TRIGGER: func = pa_memblockq_prebuf_disable; break; default: pa_assert_not_reached(); } windex = pa_memblockq_get_write_index(s->memblockq); func(s->memblockq); handle_seek(s, windex); /* 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); windex = pa_memblockq_get_write_index(ssync->memblockq); func(ssync->memblockq); handle_seek(ssync, windex); } for (isync = i->sync_next; isync; isync = isync->sync_next) { playback_stream *ssync = PLAYBACK_STREAM(isync->userdata); windex = pa_memblockq_get_write_index(ssync->memblockq); func(ssync->memblockq); handle_seek(ssync, windex); } if (code == SINK_INPUT_MESSAGE_DRAIN) { 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 = TRUE; } } 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->render_memblockq_length = pa_memblockq_get_length(s->sink_input->thread_info.render_memblockq); return 0; case PA_SINK_INPUT_MESSAGE_SET_STATE: { int64_t windex; windex = pa_memblockq_get_write_index(s->memblockq); pa_memblockq_prebuf_force(s->memblockq); handle_seek(s, windex); /* Fall through to the default handler */ 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_pop_cb(pa_sink_input *i, size_t nbytes, 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); /* pa_log("%s, pop(): %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */ if (pa_memblockq_is_readable(s->memblockq)) s->is_underrun = FALSE; else { /* pa_log("%s, UNDERRUN: %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); */ if (s->drain_request && pa_sink_input_safe_to_remove(i)) { s->drain_request = FALSE; 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); } else if (!s->is_underrun) pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, 0, NULL, NULL); s->is_underrun = TRUE; playback_stream_request_bytes(s); } /* This call will not fail with prebuf=0, hence we check for underrun explicitly above */ if (pa_memblockq_peek(s->memblockq, chunk) < 0) return -1; chunk->length = PA_MIN(nbytes, chunk->length); if (i->thread_info.underrun_for > 0) pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_STARTED, NULL, 0, NULL, NULL); pa_memblockq_drop(s->memblockq, chunk->length); playback_stream_request_bytes(s); return 0; } static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) { playback_stream *s; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); /* If we are in an underrun, then we don't rewind */ if (i->thread_info.underrun_for > 0) return; pa_memblockq_rewind(s->memblockq, nbytes); } static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) { playback_stream *s; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); pa_memblockq_set_maxrewind(s->memblockq, nbytes); } static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) { playback_stream *s; size_t tlength; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); tlength = nbytes+2*pa_memblockq_get_minreq(s->memblockq); if (pa_memblockq_get_tlength(s->memblockq) < tlength) pa_memblockq_set_tlength(s->memblockq, tlength); } /* Called from main context */ 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); playback_stream_send_killed(s); playback_stream_unlink(s); } /* Called from main context */ static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend) { playback_stream *s; pa_tagstruct *t; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); if (s->connection->version < 12) return; t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_SUSPENDED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, s->index); pa_tagstruct_put_boolean(t, suspend); pa_pstream_send_tagstruct(s->connection->pstream, t); } /* Called from main context */ static void sink_input_moved_cb(pa_sink_input *i) { playback_stream *s; pa_tagstruct *t; uint32_t maxlength, tlength, prebuf, minreq; pa_sink_input_assert_ref(i); s = PLAYBACK_STREAM(i->userdata); playback_stream_assert_ref(s); 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); fix_playback_buffer_attr_pre(s, TRUE, FALSE, &maxlength, &tlength, &prebuf, &minreq); pa_memblockq_set_maxlength(s->memblockq, maxlength); pa_memblockq_set_tlength(s->memblockq, tlength); pa_memblockq_set_prebuf(s->memblockq, prebuf); pa_memblockq_set_minreq(s->memblockq, minreq); fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq); if (s->connection->version < 12) return; t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_MOVED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, s->index); pa_tagstruct_putu32(t, i->sink->index); pa_tagstruct_puts(t, i->sink->name); pa_tagstruct_put_boolean(t, pa_sink_get_state(i->sink) == PA_SINK_SUSPENDED); if (s->connection->version >= 13) { pa_tagstruct_putu32(t, maxlength); pa_tagstruct_putu32(t, tlength); pa_tagstruct_putu32(t, prebuf); pa_tagstruct_putu32(t, minreq); pa_tagstruct_put_usec(t, s->sink_latency); } pa_pstream_send_tagstruct(s->connection->pstream, t); } /*** 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); record_stream_send_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); } /* Called from main context */ static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend) { record_stream *s; pa_tagstruct *t; pa_source_output_assert_ref(o); s = RECORD_STREAM(o->userdata); record_stream_assert_ref(s); if (s->connection->version < 12) return; t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_SUSPENDED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, s->index); pa_tagstruct_put_boolean(t, suspend); pa_pstream_send_tagstruct(s->connection->pstream, t); } /* Called from main context */ static void source_output_moved_cb(pa_source_output *o) { record_stream *s; pa_tagstruct *t; uint32_t maxlength, fragsize; pa_source_output_assert_ref(o); s = RECORD_STREAM(o->userdata); record_stream_assert_ref(s); fragsize = (uint32_t) s->fragment_size; maxlength = (uint32_t) pa_memblockq_get_length(s->memblockq); fix_record_buffer_attr_pre(s, TRUE, FALSE, &maxlength, &fragsize); pa_memblockq_set_maxlength(s->memblockq, maxlength); fix_record_buffer_attr_post(s, &maxlength, &fragsize); if (s->connection->version < 12) return; t = pa_tagstruct_new(NULL, 0); pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_MOVED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, s->index); pa_tagstruct_putu32(t, o->source->index); pa_tagstruct_puts(t, o->source->name); pa_tagstruct_put_boolean(t, pa_source_get_state(o->source) == PA_SOURCE_SUSPENDED); if (s->connection->version >= 13) { pa_tagstruct_putu32(t, maxlength); pa_tagstruct_putu32(t, fragsize); pa_tagstruct_put_usec(t, s->source_latency); } pa_pstream_send_tagstruct(s->connection->pstream, t); } /*** pdispatch callbacks ***/ static void protocol_error(pa_native_connection *c) { pa_log("protocol error, kicking client"); native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); playback_stream *s; uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid, missing; const char *name = NULL, *sink_name; pa_sample_spec ss; pa_channel_map map; pa_tagstruct *reply; pa_sink *sink = NULL; pa_cvolume volume; pa_bool_t corked = FALSE, no_remap = FALSE, no_remix = FALSE, fix_format = FALSE, fix_rate = FALSE, fix_channels = FALSE, no_move = FALSE, variable_rate = FALSE, muted = FALSE, adjust_latency = FALSE, early_requests = FALSE; pa_sink_input_flags_t flags = 0; pa_proplist *p; pa_bool_t volume_set = TRUE; pa_native_connection_assert_ref(c); pa_assert(t); if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) || pa_tagstruct_get( t, 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) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, 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); p = pa_proplist_new(); if (name) pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name); if (c->version >= 12) { /* Since 0.9.8 the user can ask for a couple of additional flags */ if (pa_tagstruct_get_boolean(t, &no_remap) < 0 || pa_tagstruct_get_boolean(t, &no_remix) < 0 || pa_tagstruct_get_boolean(t, &fix_format) < 0 || pa_tagstruct_get_boolean(t, &fix_rate) < 0 || pa_tagstruct_get_boolean(t, &fix_channels) < 0 || pa_tagstruct_get_boolean(t, &no_move) < 0 || pa_tagstruct_get_boolean(t, &variable_rate) < 0) { protocol_error(c); pa_proplist_free(p); return; } } if (c->version >= 13) { if (pa_tagstruct_get_boolean(t, &muted) < 0 || pa_tagstruct_get_boolean(t, &adjust_latency) < 0 || pa_tagstruct_get_proplist(t, p) < 0) { protocol_error(c); pa_proplist_free(p); return; } } if (c->version >= 14) { if (pa_tagstruct_get_boolean(t, &volume_set) < 0 || pa_tagstruct_get_boolean(t, &early_requests) < 0) { protocol_error(c); pa_proplist_free(p); return; } } if (!pa_tagstruct_eof(t)) { protocol_error(c); pa_proplist_free(p); return; } if (sink_index != PA_INVALID_INDEX) { if (!(sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index))) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); pa_proplist_free(p); return; } } else if (sink_name) { if (!(sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1))) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); pa_proplist_free(p); return; } } flags = (corked ? PA_SINK_INPUT_START_CORKED : 0) | (no_remap ? PA_SINK_INPUT_NO_REMAP : 0) | (no_remix ? PA_SINK_INPUT_NO_REMIX : 0) | (fix_format ? PA_SINK_INPUT_FIX_FORMAT : 0) | (fix_rate ? PA_SINK_INPUT_FIX_RATE : 0) | (fix_channels ? PA_SINK_INPUT_FIX_CHANNELS : 0) | (no_move ? PA_SINK_INPUT_DONT_MOVE : 0) | (variable_rate ? PA_SINK_INPUT_VARIABLE_RATE : 0); s = playback_stream_new(c, sink, &ss, &map, &maxlength, &tlength, &prebuf, &minreq, volume_set ? &volume : NULL, muted, syncid, &missing, flags, p, adjust_latency, early_requests); pa_proplist_free(p); 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 0.9.0 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); } if (c->version >= 12) { /* Since 0.9.8 we support sending the chosen sample * spec/channel map/device/suspend status back to the * client */ pa_tagstruct_put_sample_spec(reply, &ss); pa_tagstruct_put_channel_map(reply, &map); pa_tagstruct_putu32(reply, s->sink_input->sink->index); pa_tagstruct_puts(reply, s->sink_input->sink->name); pa_tagstruct_put_boolean(reply, pa_sink_get_state(s->sink_input->sink) == PA_SINK_SUSPENDED); } if (c->version >= 13) pa_tagstruct_put_usec(reply, s->sink_latency); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t channel; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); record_stream *s; uint32_t maxlength, fragment_size; uint32_t source_index; const char *name = NULL, *source_name; pa_sample_spec ss; pa_channel_map map; pa_tagstruct *reply; pa_source *source = NULL; pa_bool_t corked = FALSE, no_remap = FALSE, no_remix = FALSE, fix_format = FALSE, fix_rate = FALSE, fix_channels = FALSE, no_move = FALSE, variable_rate = FALSE, adjust_latency = FALSE, peak_detect = FALSE, early_requests = FALSE; pa_source_output_flags_t flags = 0; pa_proplist *p; uint32_t direct_on_input_idx = PA_INVALID_INDEX; pa_sink_input *direct_on_input = NULL; pa_native_connection_assert_ref(c); pa_assert(t); if ((c->version < 13 && (pa_tagstruct_gets(t, &name) < 0 || !name)) || 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) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, !source_name || pa_namereg_is_valid_name(source_name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, source_index == PA_INVALID_INDEX || !source_name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !source_name || source_index == PA_INVALID_INDEX, 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, map.channels == ss.channels, tag, PA_ERR_INVALID); p = pa_proplist_new(); if (name) pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name); if (c->version >= 12) { /* Since 0.9.8 the user can ask for a couple of additional flags */ if (pa_tagstruct_get_boolean(t, &no_remap) < 0 || pa_tagstruct_get_boolean(t, &no_remix) < 0 || pa_tagstruct_get_boolean(t, &fix_format) < 0 || pa_tagstruct_get_boolean(t, &fix_rate) < 0 || pa_tagstruct_get_boolean(t, &fix_channels) < 0 || pa_tagstruct_get_boolean(t, &no_move) < 0 || pa_tagstruct_get_boolean(t, &variable_rate) < 0) { protocol_error(c); pa_proplist_free(p); return; } } if (c->version >= 13) { if (pa_tagstruct_get_boolean(t, &peak_detect) < 0 || pa_tagstruct_get_boolean(t, &adjust_latency) < 0 || pa_tagstruct_get_proplist(t, p) < 0 || pa_tagstruct_getu32(t, &direct_on_input_idx) < 0) { protocol_error(c); pa_proplist_free(p); return; } } if (c->version >= 14) { if (pa_tagstruct_get_boolean(t, &early_requests) < 0) { protocol_error(c); pa_proplist_free(p); return; } } if (!pa_tagstruct_eof(t)) { protocol_error(c); pa_proplist_free(p); return; } if (source_index != PA_INVALID_INDEX) { if (!(source = pa_idxset_get_by_index(c->protocol->core->sources, source_index))) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); pa_proplist_free(p); return; } } else if (source_name) { if (!(source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1))) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); pa_proplist_free(p); return; } } if (direct_on_input_idx != PA_INVALID_INDEX) { if (!(direct_on_input = pa_idxset_get_by_index(c->protocol->core->sink_inputs, direct_on_input_idx))) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); pa_proplist_free(p); return; } } flags = (corked ? PA_SOURCE_OUTPUT_START_CORKED : 0) | (no_remap ? PA_SOURCE_OUTPUT_NO_REMAP : 0) | (no_remix ? PA_SOURCE_OUTPUT_NO_REMIX : 0) | (fix_format ? PA_SOURCE_OUTPUT_FIX_FORMAT : 0) | (fix_rate ? PA_SOURCE_OUTPUT_FIX_RATE : 0) | (fix_channels ? PA_SOURCE_OUTPUT_FIX_CHANNELS : 0) | (no_move ? PA_SOURCE_OUTPUT_DONT_MOVE : 0) | (variable_rate ? PA_SOURCE_OUTPUT_VARIABLE_RATE : 0); s = record_stream_new(c, source, &ss, &map, peak_detect, &maxlength, &fragment_size, flags, p, adjust_latency, direct_on_input, early_requests); pa_proplist_free(p); 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) fragment_size); } if (c->version >= 12) { /* Since 0.9.8 we support sending the chosen sample * spec/channel map/device/suspend status back to the * client */ pa_tagstruct_put_sample_spec(reply, &ss); pa_tagstruct_put_channel_map(reply, &map); pa_tagstruct_putu32(reply, s->source_output->source->index); pa_tagstruct_puts(reply, s->source_output->source->name); pa_tagstruct_put_boolean(reply, pa_source_get_state(s->source_output->source) == PA_SOURCE_SUSPENDED); } if (c->version >= 13) pa_tagstruct_put_usec(reply, s->source_latency); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); int ret; pa_native_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); ret = pa_core_exit(c->protocol->core, FALSE, 0); CHECK_VALIDITY(c->pstream, ret >= 0, tag, PA_ERR_ACCESS); pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */ } static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const void*cookie; pa_tagstruct *reply; pa_bool_t shm_on_remote = FALSE, do_shm; pa_native_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; } /* Starting with protocol version 13 the MSB of the version tag reflects if shm is available for this pa_native_connection or not. */ if (c->version >= 13) { shm_on_remote = !!(c->version & 0x80000000U); c->version &= 0x7FFFFFFFU; } pa_log_debug("Protocol version: remote %u, local %u", c->version, PA_PROTOCOL_VERSION); pa_proplist_setf(c->client->proplist, "native-protocol.version", "%u", c->version); if (!c->authorized) { pa_bool_t success = FALSE; #ifdef HAVE_CREDS const pa_creds *creds; if ((creds = pa_pdispatch_creds(pd))) { if (creds->uid == getuid()) success = TRUE; else if (c->options->auth_group) { int r; gid_t gid; if ((gid = pa_get_gid_of_group(c->options->auth_group)) == (gid_t) -1) pa_log_warn("Failed to get GID of group '%s'", c->options->auth_group); else if (gid == creds->gid) success = TRUE; if (!success) { if ((r = pa_uid_in_group(creds->uid, c->options->auth_group)) < 0) pa_log_warn("Failed to check group membership."); else if (r > 0) success = TRUE; } } pa_log_info("Got credentials: uid=%lu gid=%lu success=%i", (unsigned long) creds->uid, (unsigned long) creds->gid, (int) success); } #endif if (!success && c->options->auth_cookie) { const uint8_t *ac; if ((ac = pa_auth_cookie_read(c->options->auth_cookie, PA_NATIVE_COOKIE_LENGTH))) if (memcmp(ac, cookie, PA_NATIVE_COOKIE_LENGTH) == 0) success = TRUE; } 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 = TRUE; if (c->auth_timeout_event) { c->protocol->core->mainloop->time_free(c->auth_timeout_event); c->auth_timeout_event = NULL; } } /* Enable shared memory support if possible */ do_shm = pa_mempool_is_shared(c->protocol->core->mempool) && c->is_local; pa_log_debug("SHM possible: %s", pa_yes_no(do_shm)); if (do_shm) if (c->version < 10 || (c->version >= 13 && !shm_on_remote)) do_shm = FALSE; #ifdef HAVE_CREDS if (do_shm) { /* Only enable SHM if both sides are owned by the same * user. This is a security measure because otherwise data * private to the user might leak. */ const pa_creds *creds; if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid) do_shm = FALSE; } #endif pa_log_debug("Negotiated SHM: %s", pa_yes_no(do_shm)); pa_pstream_enable_shm(c->pstream, do_shm); reply = reply_new(tag); pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION | (do_shm ? 0x80000000 : 0)); #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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const char *name = NULL; pa_proplist *p; pa_tagstruct *reply; pa_native_connection_assert_ref(c); pa_assert(t); p = pa_proplist_new(); if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) || (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) || !pa_tagstruct_eof(t)) { protocol_error(c); pa_proplist_free(p); return; } if (name) if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); pa_proplist_free(p); return; } pa_proplist_update(c->client->proplist, PA_UPDATE_REPLACE, p); pa_proplist_free(p); pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index); reply = reply_new(tag); if (c->version >= 13) pa_tagstruct_putu32(reply, c->client->index); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const char *name; uint32_t idx = PA_IDXSET_INVALID; pa_native_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 && pa_namereg_is_valid_name(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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; playback_stream *s; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_tagstruct *reply; const pa_mempool_stat *stat; pa_native_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, (uint32_t) pa_scache_total_size(c->protocol->core)); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_tagstruct *reply; playback_stream *s; struct timeval tv, now; uint32_t idx; pa_usec_t latency; pa_native_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->render_memblockq_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->thread_info.playing_for > 0); 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); if (c->version >= 13) { pa_tagstruct_putu64(reply, s->sink_input->thread_info.underrun_for); pa_tagstruct_putu64(reply, s->sink_input->thread_info.playing_for); } pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_tagstruct *reply; record_stream *s; struct timeval tv, now; uint32_t idx; pa_native_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, pa_source_get_state(s->source_output->source) == PA_SOURCE_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_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); upload_stream *s; uint32_t length; const char *name = NULL; pa_sample_spec ss; pa_channel_map map; pa_tagstruct *reply; pa_proplist *p; pa_native_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) { 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); p = pa_proplist_new(); if (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) { protocol_error(c); pa_proplist_free(p); return; } if (c->version < 13) pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name); else if (!name) if (!(name = pa_proplist_gets(p, PA_PROP_EVENT_ID))) name = pa_proplist_gets(p, PA_PROP_MEDIA_NAME); CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); s = upload_stream_new(c, &ss, &map, name, length, p); pa_proplist_free(p); 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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t channel; upload_stream *s; uint32_t idx; pa_native_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, s->proplist, &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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t sink_index; pa_volume_t volume; pa_sink *sink; const char *name, *sink_name; uint32_t idx; pa_proplist *p; pa_tagstruct *reply; pa_native_connection_assert_ref(c); pa_assert(t); CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); 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) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name(sink_name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(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); p = pa_proplist_new(); if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) || !pa_tagstruct_eof(t)) { protocol_error(c); pa_proplist_free(p); return; } pa_proplist_update(p, PA_UPDATE_MERGE, c->client->proplist); if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); pa_proplist_free(p); return; } pa_proplist_free(p); reply = reply_new(tag); if (c->version >= 13) pa_tagstruct_putu32(reply, idx); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const char *name; pa_native_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 && pa_namereg_is_valid_name(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 fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) { pa_assert(c); pa_assert(fixed); pa_assert(original); *fixed = *original; if (c->version < 12) { /* Before protocol version 12 we didn't support S32 samples, * so we need to lie about this to the client */ if (fixed->format == PA_SAMPLE_S32LE) fixed->format = PA_SAMPLE_FLOAT32LE; if (fixed->format == PA_SAMPLE_S32BE) fixed->format = PA_SAMPLE_FLOAT32BE; } } static void sink_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink *sink) { pa_sample_spec fixed_ss; pa_assert(t); pa_sink_assert_ref(sink); fixup_sample_spec(c, &fixed_ss, &sink->sample_spec); pa_tagstruct_put( t, PA_TAG_U32, sink->index, PA_TAG_STRING, sink->name, PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)), PA_TAG_SAMPLE_SPEC, &fixed_ss, 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, FALSE), PA_TAG_BOOLEAN, pa_sink_get_mute(sink, FALSE), 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); if (c->version >= 13) { pa_tagstruct_put_proplist(t, sink->proplist); pa_tagstruct_put_usec(t, pa_sink_get_requested_latency(sink)); } } static void source_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source *source) { pa_sample_spec fixed_ss; pa_assert(t); pa_source_assert_ref(source); fixup_sample_spec(c, &fixed_ss, &source->sample_spec); pa_tagstruct_put( t, PA_TAG_U32, source->index, PA_TAG_STRING, source->name, PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)), PA_TAG_SAMPLE_SPEC, &fixed_ss, 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, FALSE), PA_TAG_BOOLEAN, pa_source_get_mute(source, FALSE), 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); if (c->version >= 13) { pa_tagstruct_put_proplist(t, source->proplist); pa_tagstruct_put_usec(t, pa_source_get_requested_latency(source)); } } static void client_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_client *client) { pa_assert(t); pa_assert(client); pa_tagstruct_putu32(t, client->index); pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME))); pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX); pa_tagstruct_puts(t, client->driver); if (c->version >= 13) pa_tagstruct_put_proplist(t, client->proplist); } 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, (uint32_t) module->n_used); pa_tagstruct_put_boolean(t, module->auto_unload); } static void sink_input_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink_input *s) { pa_sample_spec fixed_ss; pa_usec_t sink_latency; pa_assert(t); pa_sink_input_assert_ref(s); fixup_sample_spec(c, &fixed_ss, &s->sample_spec); pa_tagstruct_putu32(t, s->index); pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_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, &fixed_ss); 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, &sink_latency)); pa_tagstruct_put_usec(t, sink_latency); 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)); if (c->version >= 13) pa_tagstruct_put_proplist(t, s->proplist); } static void source_output_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source_output *s) { pa_sample_spec fixed_ss; pa_usec_t source_latency; pa_assert(t); pa_source_output_assert_ref(s); fixup_sample_spec(c, &fixed_ss, &s->sample_spec); pa_tagstruct_putu32(t, s->index); pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(s->proplist, PA_PROP_MEDIA_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, &fixed_ss); pa_tagstruct_put_channel_map(t, &s->channel_map); pa_tagstruct_put_usec(t, pa_source_output_get_latency(s, &source_latency)); pa_tagstruct_put_usec(t, source_latency); pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s))); pa_tagstruct_puts(t, s->driver); if (c->version >= 13) pa_tagstruct_put_proplist(t, s->proplist); } static void scache_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_scache_entry *e) { pa_sample_spec fixed_ss; pa_assert(t); pa_assert(e); if (e->memchunk.memblock) fixup_sample_spec(c, &fixed_ss, &e->sample_spec); else memset(&fixed_ss, 0, sizeof(fixed_ss)); pa_tagstruct_putu32(t, e->index); pa_tagstruct_puts(t, e->name); pa_tagstruct_put_cvolume(t, &e->volume); pa_tagstruct_put_usec(t, e->memchunk.memblock ? pa_bytes_to_usec(e->memchunk.length, &e->sample_spec) : 0); pa_tagstruct_put_sample_spec(t, &fixed_ss); pa_tagstruct_put_channel_map(t, &e->channel_map); pa_tagstruct_putu32(t, (uint32_t) e->memchunk.length); pa_tagstruct_put_boolean(t, e->lazy); pa_tagstruct_puts(t, e->filename); if (c->version >= 13) pa_tagstruct_put_proplist(t, e->proplist); } static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_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 = NULL; pa_tagstruct *reply; pa_native_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, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, 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(c, reply, sink); else if (source) source_fill_tagstruct(c, reply, source); else if (client) client_fill_tagstruct(c, 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(c, reply, so); else scache_fill_tagstruct(c, reply, sce); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_idxset *i; uint32_t idx; void *p; pa_tagstruct *reply; pa_native_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(c, reply, p); else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) source_fill_tagstruct(c, reply, p); else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) client_fill_tagstruct(c, 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(c, reply, p); else { pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); scache_fill_tagstruct(c, reply, p); } } } pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_tagstruct *reply; char txt[256]; const char *n; pa_sample_spec fixed_ss; pa_native_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_host_name(txt, sizeof(txt))); fixup_sample_spec(c, &fixed_ss, &c->protocol->core->default_sample_spec); pa_tagstruct_put_sample_spec(reply, &fixed_ss); 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; pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_subscription_mask_t m; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_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; pa_native_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, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, 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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; pa_bool_t mute; pa_sink *sink = NULL; pa_source *source = NULL; pa_sink_input *si = NULL; const char *name = NULL; pa_native_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, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, 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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; pa_bool_t b; playback_stream *s; pa_native_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); if (b) s->is_underrun = TRUE; pa_pstream_send_simple_ack(c->pstream, tag); } static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; playback_stream *s; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; record_stream *s; pa_bool_t b; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; record_stream *s; pa_native_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_read(s->memblockq); pa_pstream_send_simple_ack(c->pstream, tag); } static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; uint32_t maxlength, tlength, prebuf, minreq, fragsize; pa_tagstruct *reply; pa_native_connection_assert_ref(c); pa_assert(t); if (pa_tagstruct_getu32(t, &idx) < 0) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); if (command == PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR) { playback_stream *s; pa_bool_t adjust_latency = FALSE, early_requests = FALSE; 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); if (pa_tagstruct_get( t, PA_TAG_U32, &maxlength, PA_TAG_U32, &tlength, PA_TAG_U32, &prebuf, PA_TAG_U32, &minreq, PA_TAG_INVALID) < 0 || (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) || (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } fix_playback_buffer_attr_pre(s, adjust_latency, early_requests, &maxlength, &tlength, &prebuf, &minreq); pa_memblockq_set_maxlength(s->memblockq, maxlength); pa_memblockq_set_tlength(s->memblockq, tlength); pa_memblockq_set_prebuf(s->memblockq, prebuf); pa_memblockq_set_minreq(s->memblockq, minreq); fix_playback_buffer_attr_post(s, &maxlength, &tlength, &prebuf, &minreq); reply = reply_new(tag); pa_tagstruct_putu32(reply, maxlength); pa_tagstruct_putu32(reply, tlength); pa_tagstruct_putu32(reply, prebuf); pa_tagstruct_putu32(reply, minreq); if (c->version >= 13) pa_tagstruct_put_usec(reply, s->sink_latency); } else { record_stream *s; pa_bool_t adjust_latency = FALSE, early_requests = FALSE; pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR); s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); if (pa_tagstruct_get( t, PA_TAG_U32, &maxlength, PA_TAG_U32, &fragsize, PA_TAG_INVALID) < 0 || (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) || (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } fix_record_buffer_attr_pre(s, adjust_latency, early_requests, &maxlength, &fragsize); pa_memblockq_set_maxlength(s->memblockq, maxlength); fix_record_buffer_attr_post(s, &maxlength, &fragsize); reply = reply_new(tag); pa_tagstruct_putu32(reply, maxlength); pa_tagstruct_putu32(reply, fragsize); if (c->version >= 13) pa_tagstruct_put_usec(reply, s->source_latency); } pa_pstream_send_tagstruct(c->pstream, reply); } static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; uint32_t rate; pa_native_connection_assert_ref(c); pa_assert(t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_getu32(t, &rate) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); CHECK_VALIDITY(c->pstream, rate > 0 && rate <= PA_RATE_MAX, tag, PA_ERR_INVALID); if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) { 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_rate(s->sink_input, rate); } else { record_stream *s; pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE); s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); pa_source_output_set_rate(s->source_output, rate); } pa_pstream_send_simple_ack(c->pstream, tag); } static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; uint32_t mode; pa_proplist *p; pa_native_connection_assert_ref(c); pa_assert(t); CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); p = pa_proplist_new(); if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) { if (pa_tagstruct_getu32(t, &mode) < 0 || pa_tagstruct_get_proplist(t, p) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); pa_proplist_free(p); return; } } else { if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_getu32(t, &mode) < 0 || pa_tagstruct_get_proplist(t, p) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); pa_proplist_free(p); return; } } CHECK_VALIDITY(c->pstream, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, tag, PA_ERR_INVALID); if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST) { 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_proplist_update(s->sink_input->proplist, mode, p); pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index); } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) { record_stream *s; s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); pa_proplist_update(s->source_output->proplist, mode, p); pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index); } else { pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST); pa_proplist_update(c->client->proplist, mode, p); pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index); } pa_pstream_send_simple_ack(c->pstream, tag); } static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; unsigned changed = 0; pa_proplist *p; pa_strlist *l = NULL; pa_native_connection_assert_ref(c); pa_assert(t); CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) { if (pa_tagstruct_getu32(t, &idx) < 0) { protocol_error(c); return; } } if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) { 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); p = s->sink_input->proplist; } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) { record_stream *s; s = pa_idxset_get_by_index(c->record_streams, idx); CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); p = s->source_output->proplist; } else { pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST); p = c->client->proplist; } for (;;) { const char *k; if (pa_tagstruct_gets(t, &k) < 0) { protocol_error(c); pa_strlist_free(l); return; } if (!k) break; l = pa_strlist_prepend(l, k); } if (!pa_tagstruct_eof(t)) { protocol_error(c); pa_strlist_free(l); return; } for (;;) { char *z; l = pa_strlist_pop(l, &z); if (!z) break; changed += (unsigned) (pa_proplist_unset(p, z) >= 0); pa_xfree(z); } pa_pstream_send_simple_ack(c->pstream, tag); if (changed) { if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) { playback_stream *s; s = pa_idxset_get_by_index(c->output_streams, idx); pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index); } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) { record_stream *s; s = pa_idxset_get_by_index(c->record_streams, idx); pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index); } else { pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST); pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index); } } } static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const char *s; pa_native_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 || pa_namereg_is_valid_name(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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; const char *name; pa_native_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; pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_NAME); 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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; pa_native_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); pa_native_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); pa_native_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); pa_native_connection_ref(c); pa_source_output_kill(s); } pa_pstream_send_simple_ack(c->pstream, tag); pa_native_connection_unref(c); } static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_module *m; const char *name, *argument; pa_tagstruct *reply; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx; pa_module *m; pa_native_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, FALSE); pa_pstream_send_simple_ack(c->pstream, tag); } static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const char *name, *module, *argument; uint32_t type; uint32_t idx; pa_tagstruct *reply; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const char *name = NULL; uint32_t type, idx = PA_IDXSET_INVALID; int r; pa_native_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 ? 0U : 1U); pa_tagstruct_puts(t, e->module); pa_tagstruct_puts(t, e->argument); } static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); const pa_autoload_entry *a = NULL; uint32_t type, idx; const char *name; pa_tagstruct *reply; pa_native_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_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_tagstruct *reply; pa_native_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) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX; const char *name_device = NULL; pa_native_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_device) < 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, !name_device || pa_namereg_is_valid_name(name_device), tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || name_device, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx_device == PA_INVALID_INDEX || !name_device, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name_device || idx_device == PA_INVALID_INDEX, 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_device, PA_NAMEREG_SINK, 1); CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY); if (pa_sink_input_move_to(si, sink) < 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_device, 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) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx = PA_INVALID_INDEX; const char *name = NULL; pa_bool_t b; pa_native_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, !name || pa_namereg_is_valid_name(name) || *name == 0, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID); if (command == PA_COMMAND_SUSPEND_SINK) { if (idx == PA_INVALID_INDEX && name && !*name) { pa_log_debug("%s all sinks", b ? "Suspending" : "Resuming"); 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) { pa_log_debug("%s all sources", b ? "Suspending" : "Resuming"); 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); } static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); uint32_t idx = PA_INVALID_INDEX; const char *name = NULL; pa_module *m; pa_native_protocol_ext_cb_t cb; pa_native_connection_assert_ref(c); pa_assert(t); if (pa_tagstruct_getu32(t, &idx) < 0 || pa_tagstruct_gets(t, &name) < 0) { 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, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID); CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID); if (idx != PA_INVALID_INDEX) m = pa_idxset_get_by_index(c->protocol->core->modules, idx); else { for (m = pa_idxset_first(c->protocol->core->modules, &idx); m; m = pa_idxset_next(c->protocol->core->modules, &idx)) if (strcmp(name, m->name) == 0) break; } CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION); CHECK_VALIDITY(c->pstream, m->load_once || idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); cb = (pa_native_protocol_ext_cb_t) pa_hashmap_get(c->protocol->extensions, m); CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION); if (cb(c->protocol, m, c, tag, t) < 0) protocol_error(c); } /*** pstream callbacks ***/ static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_assert(p); pa_assert(packet); pa_native_connection_assert_ref(c); if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) { pa_log("invalid packet."); native_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) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); output_stream *stream; pa_assert(p); pa_assert(chunk); pa_native_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; } /* pa_log("got %lu bytes", (unsigned long) chunk->length); */ 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) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_assert(p); pa_native_connection_assert_ref(c); native_connection_unlink(c); pa_log_info("Connection died."); } static void pstream_drain_callback(pa_pstream *p, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_assert(p); pa_native_connection_assert_ref(c); native_connection_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); native_connection_unlink(PA_NATIVE_CONNECTION(c->userdata)); pa_log_info("Connection killed."); } /*** module entry points ***/ static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); pa_assert(m); pa_assert(tv); pa_native_connection_assert_ref(c); pa_assert(c->auth_timeout_event == e); if (!c->authorized) { native_connection_unlink(c); pa_log_info("Connection terminated due to authentication timeout."); } } void pa_native_protocol_connect(pa_native_protocol *p, pa_iochannel *io, pa_native_options *o) { pa_native_connection *c; char cname[256], pname[128]; pa_assert(p); pa_assert(io); pa_assert(o); 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(pa_native_connection); c->parent.parent.free = native_connection_free; c->parent.process_msg = native_connection_process_msg; c->protocol = p; c->options = pa_native_options_ref(o); c->authorized = FALSE; if (o->auth_anonymous) { pa_log_info("Client authenticated anonymously."); c->authorized = TRUE; } if (!c->authorized && o->auth_ip_acl && pa_ip_acl_check(o->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) { pa_log_info("Client authenticated by IP ACL."); c->authorized = TRUE; } 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->is_local = pa_iochannel_socket_is_local(io); c->version = 8; 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); pa_proplist_sets(c->client->proplist, "native-protocol.peer", pname); c->client->kill = client_kill_cb; c->client->userdata = c; c->client->module = o->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 pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_CONNECTION_PUT], c); } void pa_native_protocol_disconnect(pa_native_protocol *p, pa_module *m) { pa_native_connection *c; void *state = NULL; pa_assert(p); pa_assert(m); while ((c = pa_idxset_iterate(p->connections, &state, NULL))) if (c->options->module == m) native_connection_unlink(c); } static pa_native_protocol* native_protocol_new(pa_core *c) { pa_native_protocol *p; pa_native_hook_t h; pa_assert(c); p = pa_xnew(pa_native_protocol, 1); PA_REFCNT_INIT(p); p->core = c; p->connections = pa_idxset_new(NULL, NULL); p->servers = NULL; p->extensions = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); for (h = 0; h < PA_NATIVE_HOOK_MAX; h++) pa_hook_init(&p->hooks[h], p); pa_assert_se(pa_shared_set(c, "native-protocol", p) >= 0); return p; } pa_native_protocol* pa_native_protocol_get(pa_core *c) { pa_native_protocol *p; if ((p = pa_shared_get(c, "native-protocol"))) return pa_native_protocol_ref(p); return native_protocol_new(c); } pa_native_protocol* pa_native_protocol_ref(pa_native_protocol *p) { pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); PA_REFCNT_INC(p); return p; } void pa_native_protocol_unref(pa_native_protocol *p) { pa_native_connection *c; pa_native_hook_t h; pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); if (PA_REFCNT_DEC(p) > 0) return; while ((c = pa_idxset_first(p->connections, NULL))) native_connection_unlink(c); pa_idxset_free(p->connections, NULL, NULL); pa_strlist_free(p->servers); for (h = 0; h < PA_NATIVE_HOOK_MAX; h++) pa_hook_done(&p->hooks[h]); pa_hashmap_free(p->extensions, NULL, NULL); pa_assert_se(pa_shared_remove(p->core, "native-protocol") >= 0); pa_xfree(p); } void pa_native_protocol_add_server_string(pa_native_protocol *p, const char *name) { pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); pa_assert(name); p->servers = pa_strlist_prepend(p->servers, name); pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers); } void pa_native_protocol_remove_server_string(pa_native_protocol *p, const char *name) { pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); pa_assert(name); p->servers = pa_strlist_remove(p->servers, name); pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers); } pa_hook *pa_native_protocol_hooks(pa_native_protocol *p) { pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); return p->hooks; } pa_strlist *pa_native_protocol_servers(pa_native_protocol *p) { pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); return p->servers; } int pa_native_protocol_install_ext(pa_native_protocol *p, pa_module *m, pa_native_protocol_ext_cb_t cb) { pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); pa_assert(m); pa_assert(cb); pa_assert(!pa_hashmap_get(p->extensions, m)); pa_assert_se(pa_hashmap_put(p->extensions, m, (void*) cb) == 0); return 0; } void pa_native_protocol_remove_ext(pa_native_protocol *p, pa_module *m) { pa_assert(p); pa_assert(PA_REFCNT_VALUE(p) >= 1); pa_assert(m); pa_assert_se(pa_hashmap_remove(p->extensions, m)); } pa_native_options* pa_native_options_new(void) { pa_native_options *o; o = pa_xnew0(pa_native_options, 1); PA_REFCNT_INIT(o); return o; } pa_native_options* pa_native_options_ref(pa_native_options *o) { pa_assert(o); pa_assert(PA_REFCNT_VALUE(o) >= 1); PA_REFCNT_INC(o); return o; } void pa_native_options_unref(pa_native_options *o) { pa_assert(o); pa_assert(PA_REFCNT_VALUE(o) >= 1); if (PA_REFCNT_DEC(o) > 0) return; pa_xfree(o->auth_group); if (o->auth_ip_acl) pa_ip_acl_free(o->auth_ip_acl); if (o->auth_cookie) pa_auth_cookie_unref(o->auth_cookie); pa_xfree(o); } int pa_native_options_parse(pa_native_options *o, pa_core *c, pa_modargs *ma) { pa_bool_t enabled; const char *acl; pa_assert(o); pa_assert(PA_REFCNT_VALUE(o) >= 1); pa_assert(ma); if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &o->auth_anonymous) < 0) { pa_log("auth-anonymous= expects a boolean argument."); return -1; } enabled = TRUE; if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &enabled) < 0) { pa_log("auth-group-enabled= expects a boolean argument."); return -1; } pa_xfree(o->auth_group); o->auth_group = enabled ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL; #ifndef HAVE_CREDS if (o->auth_group) pa_log_warn("Authentication group configured, but not available on local system. Ignoring."); #endif if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) { pa_ip_acl *ipa; if (!(ipa = pa_ip_acl_new(acl))) { pa_log("Failed to parse IP ACL '%s'", acl); return -1; } if (o->auth_ip_acl) pa_ip_acl_free(o->auth_ip_acl); o->auth_ip_acl = ipa; } enabled = TRUE; if (pa_modargs_get_value_boolean(ma, "auth-cookie-enabled", &enabled) < 0) { pa_log("auth-cookie-enabled= expects a boolean argument."); return -1; } if (o->auth_cookie) pa_auth_cookie_unref(o->auth_cookie); if (enabled) { const char *cn; /* The new name for this is 'auth-cookie', for compat reasons * we check the old name too */ if (!(cn = pa_modargs_get_value(ma, "auth-cookie", NULL))) if (!(cn = pa_modargs_get_value(ma, "cookie", NULL))) cn = PA_NATIVE_COOKIE_FILE; if (!(o->auth_cookie = pa_auth_cookie_get(c, cn, PA_NATIVE_COOKIE_LENGTH))) return -1; } else o->auth_cookie = NULL; return 0; } pa_pstream* pa_native_connection_get_pstream(pa_native_connection *c) { pa_native_connection_assert_ref(c); return c->pstream; }