/* $Id$ */ /*** This file is part of polypaudio. polypaudio is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. polypaudio 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 General Public License along with polypaudio; 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 "protocol-native.h" #include "native-common.h" #include "packet.h" #include "client.h" #include "source-output.h" #include "sink-input.h" #include "pstream.h" #include "tagstruct.h" #include "pdispatch.h" #include "pstream-util.h" #include "authkey.h" #include "namereg.h" #include "scache.h" #include "xmalloc.h" #include "util.h" #include "subscribe.h" #include "log.h" struct connection; struct pa_protocol_native; struct record_stream { struct connection *connection; uint32_t index; struct pa_source_output *source_output; struct pa_memblockq *memblockq; size_t fragment_size; }; struct playback_stream { int type; struct connection *connection; uint32_t index; struct pa_sink_input *sink_input; struct pa_memblockq *memblockq; size_t requested_bytes; int drain_request; uint32_t drain_tag; }; struct upload_stream { int type; struct connection *connection; uint32_t index; struct pa_memchunk memchunk; size_t length; char *name; struct pa_sample_spec sample_spec; }; struct output_stream { int type; }; enum { UPLOAD_STREAM, PLAYBACK_STREAM }; struct connection { int authorized; struct pa_protocol_native *protocol; struct pa_client *client; struct pa_pstream *pstream; struct pa_pdispatch *pdispatch; struct pa_idxset *record_streams, *output_streams; uint32_t rrobin_index; struct pa_subscription *subscription; }; struct pa_protocol_native { struct pa_module *module; int public; struct pa_core *core; struct pa_socket_server *server; struct pa_idxset *connections; uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH]; }; static int sink_input_peek_cb(struct pa_sink_input *i, struct pa_memchunk *chunk); static void sink_input_drop_cb(struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length); static void sink_input_kill_cb(struct pa_sink_input *i); static uint32_t sink_input_get_latency_cb(struct pa_sink_input *i); static void request_bytes(struct playback_stream*s); static void source_output_kill_cb(struct pa_source_output *o); static void source_output_push_cb(struct pa_source_output *o, const struct pa_memchunk *chunk); static void command_exit(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_create_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_drain_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_create_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_delete_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_auth(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_set_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_lookup(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_stat(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_get_playback_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_create_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_finish_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_play_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_remove_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_get_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_get_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_get_server_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_subscribe(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_set_volume(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_cork_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static void command_flush_or_trigger_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); static const struct pa_pdispatch_command 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_NAME] = { command_set_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_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_CORK_PLAYBACK_STREAM] = { command_cork_playback_stream }, [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = { command_flush_or_trigger_playback_stream }, [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = { command_flush_or_trigger_playback_stream }, }; /* structure management */ static struct upload_stream* upload_stream_new(struct connection *c, const struct pa_sample_spec *ss, const char *name, size_t length) { struct upload_stream *s; assert(c && ss && name && length); s = pa_xmalloc(sizeof(struct upload_stream)); s->type = UPLOAD_STREAM; s->connection = c; s->sample_spec = *ss; s->name = pa_xstrdup(name); s->memchunk.memblock = NULL; s->memchunk.index = 0; s->memchunk.length = 0; s->length = length; pa_idxset_put(c->output_streams, s, &s->index); return s; } static void upload_stream_free(struct upload_stream *o) { assert(o && o->connection); pa_idxset_remove_by_data(o->connection->output_streams, o, NULL); pa_xfree(o->name); if (o->memchunk.memblock) pa_memblock_unref(o->memchunk.memblock); pa_xfree(o); } static struct record_stream* record_stream_new(struct connection *c, struct pa_source *source, const struct pa_sample_spec *ss, const char *name, size_t maxlength, size_t fragment_size) { struct record_stream *s; struct pa_source_output *source_output; size_t base; assert(c && source && ss && name && maxlength); if (!(source_output = pa_source_output_new(source, name, ss))) return NULL; s = pa_xmalloc(sizeof(struct record_stream)); 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->userdata = s; s->source_output->owner = c->protocol->module; s->source_output->client = c->client; s->memblockq = pa_memblockq_new(maxlength, 0, base = pa_frame_size(ss), 0, 0, c->protocol->core->memblock_stat); assert(s->memblockq); s->fragment_size = (fragment_size/base)*base; if (!s->fragment_size) s->fragment_size = base; pa_idxset_put(c->record_streams, s, &s->index); return s; } static void record_stream_free(struct record_stream* r) { assert(r && r->connection); pa_idxset_remove_by_data(r->connection->record_streams, r, NULL); pa_source_output_free(r->source_output); pa_memblockq_free(r->memblockq); pa_xfree(r); } static struct playback_stream* playback_stream_new(struct connection *c, struct pa_sink *sink, const struct pa_sample_spec *ss, const char *name, size_t maxlength, size_t tlength, size_t prebuf, size_t minreq) { struct playback_stream *s; struct pa_sink_input *sink_input; assert(c && sink && ss && name && maxlength); if (!(sink_input = pa_sink_input_new(sink, name, ss))) return NULL; s = pa_xmalloc(sizeof(struct playback_stream)); s->type = PLAYBACK_STREAM; s->connection = c; s->sink_input = sink_input; s->sink_input->peek = sink_input_peek_cb; s->sink_input->drop = sink_input_drop_cb; s->sink_input->kill = sink_input_kill_cb; s->sink_input->get_latency = sink_input_get_latency_cb; s->sink_input->userdata = s; s->sink_input->owner = c->protocol->module; s->sink_input->client = c->client; s->memblockq = pa_memblockq_new(maxlength, tlength, pa_frame_size(ss), prebuf, minreq, c->protocol->core->memblock_stat); assert(s->memblockq); s->requested_bytes = 0; s->drain_request = 0; pa_idxset_put(c->output_streams, s, &s->index); return s; } static void playback_stream_free(struct playback_stream* p) { assert(p && p->connection); if (p->drain_request) pa_pstream_send_error(p->connection->pstream, p->drain_tag, PA_ERROR_NOENTITY); pa_idxset_remove_by_data(p->connection->output_streams, p, NULL); pa_sink_input_free(p->sink_input); pa_memblockq_free(p->memblockq); pa_xfree(p); } static void connection_free(struct connection *c) { struct record_stream *r; struct output_stream *o; assert(c && c->protocol); pa_idxset_remove_by_data(c->protocol->connections, c, NULL); while ((r = pa_idxset_first(c->record_streams, NULL))) record_stream_free(r); pa_idxset_free(c->record_streams, NULL, NULL); while ((o = pa_idxset_first(c->output_streams, NULL))) if (o->type == PLAYBACK_STREAM) playback_stream_free((struct playback_stream*) o); else upload_stream_free((struct upload_stream*) o); pa_idxset_free(c->output_streams, NULL, NULL); pa_pdispatch_unref(c->pdispatch); pa_pstream_close(c->pstream); pa_pstream_unref(c->pstream); pa_client_free(c->client); if (c->subscription) pa_subscription_free(c->subscription); pa_xfree(c); } static void request_bytes(struct playback_stream *s) { struct pa_tagstruct *t; size_t l; assert(s); if (!(l = pa_memblockq_missing(s->memblockq))) return; if (l <= s->requested_bytes) return; l -= s->requested_bytes; if (l < pa_memblockq_get_minreq(s->memblockq)) return; s->requested_bytes += l; t = pa_tagstruct_new(NULL, 0); assert(t); pa_tagstruct_putu32(t, PA_COMMAND_REQUEST); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, s->index); pa_tagstruct_putu32(t, l); pa_pstream_send_tagstruct(s->connection->pstream, t); /*pa_log(__FILE__": Requesting %u bytes\n", l);*/ } static void send_memblock(struct connection *c) { uint32_t start; struct record_stream *r; start = PA_IDXSET_INVALID; for (;;) { struct pa_memchunk chunk; if (!(r = pa_idxset_rrobin(c->record_streams, &c->rrobin_index))) return; if (start == PA_IDXSET_INVALID) start = c->rrobin_index; else if (start == c->rrobin_index) return; if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) { if (chunk.length > r->fragment_size) chunk.length = r->fragment_size; pa_pstream_send_memblock(c->pstream, r->index, 0, &chunk); pa_memblockq_drop(r->memblockq, &chunk, chunk.length); pa_memblock_unref(chunk.memblock); return; } } } static void send_playback_stream_killed(struct playback_stream *p) { struct pa_tagstruct *t; assert(p); t = pa_tagstruct_new(NULL, 0); assert(t); pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, p->index); pa_pstream_send_tagstruct(p->connection->pstream, t); } static void send_record_stream_killed(struct record_stream *r) { struct pa_tagstruct *t; assert(r); t = pa_tagstruct_new(NULL, 0); assert(t); pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED); pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ pa_tagstruct_putu32(t, r->index); pa_pstream_send_tagstruct(r->connection->pstream, t); } /*** sinkinput callbacks ***/ static int sink_input_peek_cb(struct pa_sink_input *i, struct pa_memchunk *chunk) { struct playback_stream *s; assert(i && i->userdata && chunk); s = i->userdata; if (pa_memblockq_peek(s->memblockq, chunk) < 0) return -1; return 0; } static void sink_input_drop_cb(struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length) { struct playback_stream *s; assert(i && i->userdata && length); s = i->userdata; pa_memblockq_drop(s->memblockq, chunk, length); request_bytes(s); if (s->drain_request && !pa_memblockq_is_readable(s->memblockq)) { pa_pstream_send_simple_ack(s->connection->pstream, s->drain_tag); s->drain_request = 0; } /*pa_log(__FILE__": after_drop: %u\n", pa_memblockq_get_length(s->memblockq));*/ } static void sink_input_kill_cb(struct pa_sink_input *i) { assert(i && i->userdata); send_playback_stream_killed((struct playback_stream *) i->userdata); playback_stream_free((struct playback_stream *) i->userdata); } static uint32_t sink_input_get_latency_cb(struct pa_sink_input *i) { struct playback_stream *s; assert(i && i->userdata); s = i->userdata; /*pa_log(__FILE__": get_latency: %u\n", pa_memblockq_get_length(s->memblockq));*/ return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &s->sink_input->sample_spec); } /*** source_output callbacks ***/ static void source_output_push_cb(struct pa_source_output *o, const struct pa_memchunk *chunk) { struct record_stream *s; assert(o && o->userdata && chunk); s = o->userdata; pa_memblockq_push_align(s->memblockq, chunk, 0); if (!pa_pstream_is_pending(s->connection->pstream)) send_memblock(s->connection); } static void source_output_kill_cb(struct pa_source_output *o) { assert(o && o->userdata); send_record_stream_killed((struct record_stream *) o->userdata); record_stream_free((struct record_stream *) o->userdata); } /*** pdispatch callbacks ***/ static void protocol_error(struct connection *c) { pa_log(__FILE__": protocol error, kicking client\n"); connection_free(c); } static void command_create_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; struct playback_stream *s; size_t maxlength, tlength, prebuf, minreq; uint32_t sink_index; const char *name, *sink_name; struct pa_sample_spec ss; struct pa_tagstruct *reply; struct pa_sink *sink; assert(c && t && c->protocol && c->protocol->core); if (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_get_sample_spec(t, &ss) < 0 || pa_tagstruct_getu32(t, &sink_index) < 0 || pa_tagstruct_gets(t, &sink_name) < 0 || pa_tagstruct_getu32(t, &maxlength) < 0 || pa_tagstruct_getu32(t, &tlength) < 0 || pa_tagstruct_getu32(t, &prebuf) < 0 || pa_tagstruct_getu32(t, &minreq) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (sink_index != (uint32_t) -1) sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); else sink = pa_namereg_get(c->protocol->core, *sink_name ? sink_name : NULL, PA_NAMEREG_SINK, 1); if (!sink) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } if (!(s = playback_stream_new(c, sink, &ss, name, maxlength, tlength, prebuf, minreq))) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); pa_tagstruct_putu32(reply, s->index); assert(s->sink_input); pa_tagstruct_putu32(reply, s->sink_input->index); pa_pstream_send_tagstruct(c->pstream, reply); request_bytes(s); } static void command_delete_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t channel; assert(c && t); if (pa_tagstruct_getu32(t, &channel) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (command == PA_COMMAND_DELETE_PLAYBACK_STREAM) { struct playback_stream *s; if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != PLAYBACK_STREAM)) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST); return; } playback_stream_free(s); } else if (command == PA_COMMAND_DELETE_RECORD_STREAM) { struct record_stream *s; if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST); return; } record_stream_free(s); } else { struct upload_stream *s; assert(command == PA_COMMAND_DELETE_UPLOAD_STREAM); if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST); return; } upload_stream_free(s); } pa_pstream_send_simple_ack(c->pstream, tag); } static void command_create_record_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; struct record_stream *s; size_t maxlength, fragment_size; uint32_t source_index; const char *name, *source_name; struct pa_sample_spec ss; struct pa_tagstruct *reply; struct pa_source *source; assert(c && t && c->protocol && c->protocol->core); if (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_get_sample_spec(t, &ss) < 0 || pa_tagstruct_getu32(t, &source_index) < 0 || pa_tagstruct_gets(t, &source_name) < 0 || pa_tagstruct_getu32(t, &maxlength) < 0 || pa_tagstruct_getu32(t, &fragment_size) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (source_index != (uint32_t) -1) source = pa_idxset_get_by_index(c->protocol->core->sources, source_index); else source = pa_namereg_get(c->protocol->core, *source_name ? source_name : NULL, PA_NAMEREG_SOURCE, 1); if (!source) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } if (!(s = record_stream_new(c, source, &ss, name, maxlength, fragment_size))) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); pa_tagstruct_putu32(reply, s->index); assert(s->source_output); pa_tagstruct_putu32(reply, s->source_output->index); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_exit(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } assert(c->protocol && c->protocol->core && c->protocol->core->mainloop); c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0); pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */ return; } static void command_auth(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; const void*cookie; assert(c && t); if (pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (memcmp(c->protocol->auth_cookie, cookie, PA_NATIVE_COOKIE_LENGTH) != 0) { pa_log(__FILE__": Denied access to client with invalid authorization key.\n"); pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } c->authorized = 1; pa_pstream_send_simple_ack(c->pstream, tag); return; } static void command_set_name(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; const char *name; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } pa_client_rename(c->client, name); pa_pstream_send_simple_ack(c->pstream, tag); return; } static void command_lookup(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; const char *name; uint32_t index = PA_IDXSET_INVALID; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (command == PA_COMMAND_LOOKUP_SINK) { struct pa_sink *sink; if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1))) index = sink->index; } else { struct pa_source *source; assert(command == PA_COMMAND_LOOKUP_SOURCE); if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1))) index = source->index; } if (index == PA_IDXSET_INVALID) pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); else { struct pa_tagstruct *reply; reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); pa_tagstruct_putu32(reply, index); pa_pstream_send_tagstruct(c->pstream, reply); } } static void command_drain_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t index; struct playback_stream *s; assert(c && t); if (pa_tagstruct_getu32(t, &index) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } s->drain_request = 0; pa_memblockq_prebuf_disable(s->memblockq); if (!pa_memblockq_is_readable(s->memblockq)) { pa_pstream_send_simple_ack(c->pstream, tag); } else { s->drain_request = 1; s->drain_tag = tag; pa_sink_notify(s->sink_input->sink); } } static void command_stat(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; struct pa_tagstruct *reply; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total); pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total_size); pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated); pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated_size); pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core)); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_playback_latency(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; struct pa_tagstruct *reply; struct playback_stream *s; uint32_t index; assert(c && t); if (pa_tagstruct_getu32(t, &index) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); pa_tagstruct_putu32(reply, pa_sink_input_get_latency(s->sink_input)); pa_tagstruct_putu32(reply, pa_sink_get_latency(s->sink_input->sink)); pa_tagstruct_put_boolean(reply, pa_memblockq_is_readable(s->memblockq)); pa_tagstruct_putu32(reply, pa_memblockq_get_length(s->memblockq)); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_create_upload_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; struct upload_stream *s; size_t length; const char *name; struct pa_sample_spec ss; struct pa_tagstruct *reply; assert(c && t && c->protocol && c->protocol->core); if (pa_tagstruct_gets(t, &name) < 0 || pa_tagstruct_get_sample_spec(t, &ss) < 0 || pa_tagstruct_getu32(t, &length) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if ((length % pa_frame_size(&ss)) != 0 || length <= 0 || !*name) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID); return; } if (!(s = upload_stream_new(c, &ss, name, length))) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_INVALID); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); pa_tagstruct_putu32(reply, s->index); pa_pstream_send_tagstruct(c->pstream, reply); reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REQUEST); pa_tagstruct_putu32(reply, (uint32_t) -1); /* 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(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t channel; struct upload_stream *s; uint32_t index; assert(c && t); if (pa_tagstruct_getu32(t, &channel) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_EXIST); return; } pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->memchunk, &index); pa_pstream_send_simple_ack(c->pstream, tag); upload_stream_free(s); } static void command_play_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t sink_index, volume; struct pa_sink *sink; const char *name, *sink_name; assert(c && t); if (pa_tagstruct_getu32(t, &sink_index) < 0 || pa_tagstruct_gets(t, &sink_name) < 0 || pa_tagstruct_getu32(t, &volume) < 0 || pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (sink_index != (uint32_t) -1) sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); else sink = pa_namereg_get(c->protocol->core, *sink_name ? sink_name : NULL, PA_NAMEREG_SINK, 1); if (!sink) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } if (pa_scache_play_item(c->protocol->core, name, sink, volume) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } pa_pstream_send_simple_ack(c->pstream, tag); } static void command_remove_sample(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; const char *name; assert(c && t); if (pa_tagstruct_gets(t, &name) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (pa_scache_remove_item(c->protocol->core, name) < 0) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } pa_pstream_send_simple_ack(c->pstream, tag); } static void sink_fill_tagstruct(struct pa_tagstruct *t, struct pa_sink *sink) { assert(t && sink); pa_tagstruct_putu32(t, sink->index); pa_tagstruct_puts(t, sink->name); pa_tagstruct_puts(t, sink->description ? sink->description : ""); pa_tagstruct_put_sample_spec(t, &sink->sample_spec); pa_tagstruct_putu32(t, sink->owner ? sink->owner->index : (uint32_t) -1); pa_tagstruct_putu32(t, sink->volume); pa_tagstruct_putu32(t, sink->monitor_source->index); pa_tagstruct_puts(t, sink->monitor_source->name); pa_tagstruct_putu32(t, pa_sink_get_latency(sink)); } static void source_fill_tagstruct(struct pa_tagstruct *t, struct pa_source *source) { assert(t && source); pa_tagstruct_putu32(t, source->index); pa_tagstruct_puts(t, source->name); pa_tagstruct_puts(t, source->description ? source->description : ""); pa_tagstruct_put_sample_spec(t, &source->sample_spec); pa_tagstruct_putu32(t, source->owner ? source->owner->index : (uint32_t) -1); pa_tagstruct_putu32(t, source->monitor_of ? source->monitor_of->index : (uint32_t) -1); pa_tagstruct_puts(t, source->monitor_of ? source->monitor_of->name : ""); } static void client_fill_tagstruct(struct pa_tagstruct *t, struct pa_client *client) { assert(t && client); pa_tagstruct_putu32(t, client->index); pa_tagstruct_puts(t, client->name); pa_tagstruct_puts(t, client->protocol_name); pa_tagstruct_putu32(t, client->owner ? client->owner->index : (uint32_t) -1); } static void module_fill_tagstruct(struct pa_tagstruct *t, struct pa_module *module) { assert(t && module); pa_tagstruct_putu32(t, module->index); pa_tagstruct_puts(t, module->name); pa_tagstruct_puts(t, module->argument ? module->argument : ""); pa_tagstruct_putu32(t, module->n_used); pa_tagstruct_put_boolean(t, module->auto_unload); } static void sink_input_fill_tagstruct(struct pa_tagstruct *t, struct pa_sink_input *s) { assert(t && s); pa_tagstruct_putu32(t, s->index); pa_tagstruct_puts(t, s->name ? s->name : ""); pa_tagstruct_putu32(t, s->owner ? s->owner->index : (uint32_t) -1); pa_tagstruct_putu32(t, s->client ? s->client->index : (uint32_t) -1); pa_tagstruct_putu32(t, s->sink->index); pa_tagstruct_put_sample_spec(t, &s->sample_spec); pa_tagstruct_putu32(t, s->volume); pa_tagstruct_putu32(t, pa_sink_input_get_latency(s)); pa_tagstruct_putu32(t, pa_sink_get_latency(s->sink)); } static void source_output_fill_tagstruct(struct pa_tagstruct *t, struct pa_source_output *s) { assert(t && s); pa_tagstruct_putu32(t, s->index); pa_tagstruct_puts(t, s->name ? s->name : ""); pa_tagstruct_putu32(t, s->owner ? s->owner->index : (uint32_t) -1); pa_tagstruct_putu32(t, s->client ? s->client->index : (uint32_t) -1); pa_tagstruct_putu32(t, s->source->index); pa_tagstruct_put_sample_spec(t, &s->sample_spec); } static void scache_fill_tagstruct(struct pa_tagstruct *t, struct pa_scache_entry *e) { assert(t && e); pa_tagstruct_putu32(t, e->index); pa_tagstruct_puts(t, e->name); pa_tagstruct_putu32(t, e->volume); pa_tagstruct_putu32(t, pa_bytes_to_usec(e->memchunk.length, &e->sample_spec)); pa_tagstruct_put_sample_spec(t, &e->sample_spec); pa_tagstruct_putu32(t, e->memchunk.length); } static void command_get_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t index; struct pa_sink *sink = NULL; struct pa_source *source = NULL; struct pa_client *client = NULL; struct pa_module *module = NULL; struct pa_sink_input *si = NULL; struct pa_source_output *so = NULL; struct pa_scache_entry *sce = NULL; const char *name; struct pa_tagstruct *reply; assert(c && t); if (pa_tagstruct_getu32(t, &index) < 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; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (command == PA_COMMAND_GET_SINK_INFO) { if (index != (uint32_t) -1) sink = pa_idxset_get_by_index(c->protocol->core->sinks, index); else sink = pa_namereg_get(c->protocol->core, *name ? name : NULL, PA_NAMEREG_SINK, 1); } else if (command == PA_COMMAND_GET_SOURCE_INFO) { if (index != (uint32_t) -1) source = pa_idxset_get_by_index(c->protocol->core->sources, index); else source = pa_namereg_get(c->protocol->core, *name ? name : NULL, PA_NAMEREG_SOURCE, 1); } else if (command == PA_COMMAND_GET_CLIENT_INFO) client = pa_idxset_get_by_index(c->protocol->core->clients, index); else if (command == PA_COMMAND_GET_MODULE_INFO) module = pa_idxset_get_by_index(c->protocol->core->modules, index); else if (command == PA_COMMAND_GET_SINK_INPUT_INFO) si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index); else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO) so = pa_idxset_get_by_index(c->protocol->core->source_outputs, index); else { assert(command == PA_COMMAND_GET_SAMPLE_INFO && name); if (index != (uint32_t) -1) sce = pa_idxset_get_by_index(c->protocol->core->scache, index); 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_ERROR_NOENTITY); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); if (sink) sink_fill_tagstruct(reply, sink); else if (source) source_fill_tagstruct(reply, source); else if (client) client_fill_tagstruct(reply, client); else if (module) module_fill_tagstruct(reply, module); else if (si) sink_input_fill_tagstruct(reply, si); else if (so) source_output_fill_tagstruct(reply, so); else scache_fill_tagstruct(reply, sce); pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_info_list(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; struct pa_idxset *i; uint32_t index; void *p; struct pa_tagstruct *reply; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, tag); if (command == PA_COMMAND_GET_SINK_INFO_LIST) i = c->protocol->core->sinks; else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) i = c->protocol->core->sources; else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) i = c->protocol->core->clients; else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) i = c->protocol->core->modules; else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) i = c->protocol->core->sink_inputs; else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) i = c->protocol->core->source_outputs; else { assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); i = c->protocol->core->scache; } if (i) { for (p = pa_idxset_first(i, &index); p; p = pa_idxset_next(i, &index)) { if (command == PA_COMMAND_GET_SINK_INFO_LIST) sink_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) source_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) client_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) module_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) sink_input_fill_tagstruct(reply, p); else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) source_output_fill_tagstruct(reply, p); else { assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); scache_fill_tagstruct(reply, p); } } } pa_pstream_send_tagstruct(c->pstream, reply); } static void command_get_server_info(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; struct pa_tagstruct *reply; char txt[256]; assert(c && t); if (!pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } reply = pa_tagstruct_new(NULL, 0); assert(reply); pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); pa_tagstruct_putu32(reply, 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))); pa_tagstruct_put_sample_spec(reply, &c->protocol->core->default_sample_spec); pa_pstream_send_tagstruct(c->pstream, reply); } static void subscription_cb(struct pa_core *core, enum pa_subscription_event_type e, uint32_t index, void *userdata) { struct pa_tagstruct *t; struct connection *c = userdata; assert(c && core); t = pa_tagstruct_new(NULL, 0); assert(t); pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT); pa_tagstruct_putu32(t, (uint32_t) -1); pa_tagstruct_putu32(t, e); pa_tagstruct_putu32(t, index); pa_pstream_send_tagstruct(c->pstream, t); } static void command_subscribe(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; enum pa_subscription_mask m; assert(c && t); if (pa_tagstruct_getu32(t, &m) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (c->subscription) pa_subscription_free(c->subscription); if (m != 0) { c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c); assert(c->subscription); } else c->subscription = NULL; pa_pstream_send_simple_ack(c->pstream, tag); } static void command_set_volume(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t index, volume; struct pa_sink *sink = NULL; struct pa_sink_input *si = NULL; const char *name = NULL; assert(c && t); if (pa_tagstruct_getu32(t, &index) < 0 || (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) || pa_tagstruct_getu32(t, &volume) || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (command == PA_COMMAND_SET_SINK_VOLUME) { if (index != (uint32_t) -1) sink = pa_idxset_get_by_index(c->protocol->core->sinks, index); else sink = pa_namereg_get(c->protocol->core, *name ? name : NULL, PA_NAMEREG_SINK, 1); } else { assert(command == PA_COMMAND_SET_SINK_INPUT_VOLUME); si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, index); } if (!si && !sink) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } if (sink) pa_sink_set_volume(sink, volume); else if (si) pa_sink_input_set_volume(si, volume); pa_pstream_send_simple_ack(c->pstream, tag); } static void command_cork_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t index; uint32_t b; struct playback_stream *s; assert(c && t); if (pa_tagstruct_getu32(t, &index) < 0 || pa_tagstruct_getu32(t, &b) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } pa_sink_input_cork(s->sink_input, b); pa_pstream_send_simple_ack(c->pstream, tag); } static void command_flush_or_trigger_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { struct connection *c = userdata; uint32_t index; struct playback_stream *s; assert(c && t); if (pa_tagstruct_getu32(t, &index) < 0 || !pa_tagstruct_eof(t)) { protocol_error(c); return; } if (!c->authorized) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS); return; } if (!(s = pa_idxset_get_by_index(c->output_streams, index)) || s->type != PLAYBACK_STREAM) { pa_pstream_send_error(c->pstream, tag, PA_ERROR_NOENTITY); return; } if (command == PA_COMMAND_TRIGGER_PLAYBACK_STREAM) pa_memblockq_prebuf_disable(s->memblockq); else { assert(command == PA_COMMAND_FLUSH_PLAYBACK_STREAM); pa_memblockq_flush(s->memblockq); /*pa_log(__FILE__": flush: %u\n", pa_memblockq_get_length(s->memblockq));*/ } pa_sink_notify(s->sink_input->sink); pa_pstream_send_simple_ack(c->pstream, tag); request_bytes(s); } /*** pstream callbacks ***/ static void pstream_packet_callback(struct pa_pstream *p, struct pa_packet *packet, void *userdata) { struct connection *c = userdata; assert(p && packet && packet->data && c); if (pa_pdispatch_run(c->pdispatch, packet, c) < 0) { pa_log(__FILE__": invalid packet.\n"); connection_free(c); } } static void pstream_memblock_callback(struct pa_pstream *p, uint32_t channel, uint32_t delta, const struct pa_memchunk *chunk, void *userdata) { struct connection *c = userdata; struct output_stream *stream; assert(p && chunk && userdata); if (!(stream = pa_idxset_get_by_index(c->output_streams, channel))) { pa_log(__FILE__": client sent block for invalid stream.\n"); connection_free(c); return; } if (stream->type == PLAYBACK_STREAM) { struct playback_stream *p = (struct playback_stream*) stream; if (chunk->length >= p->requested_bytes) p->requested_bytes = 0; else p->requested_bytes -= chunk->length; pa_memblockq_push_align(p->memblockq, chunk, delta); assert(p->sink_input); /*pa_log(__FILE__": after_recv: %u\n", pa_memblockq_get_length(p->memblockq));*/ pa_sink_notify(p->sink_input->sink); /*pa_log(__FILE__": Recieved %u bytes.\n", chunk->length);*/ } else { struct upload_stream *u = (struct upload_stream*) stream; size_t l; assert(u->type == UPLOAD_STREAM); if (!u->memchunk.memblock) { if (u->length == chunk->length) { u->memchunk = *chunk; pa_memblock_ref(u->memchunk.memblock); u->length = 0; } else { u->memchunk.memblock = pa_memblock_new(u->length, c->protocol->core->memblock_stat); u->memchunk.index = u->memchunk.length = 0; } } assert(u->memchunk.memblock); l = u->length; if (l > chunk->length) l = chunk->length; if (l > 0) { memcpy((uint8_t*) u->memchunk.memblock->data + u->memchunk.index + u->memchunk.length, (uint8_t*) chunk->memblock->data+chunk->index, l); u->memchunk.length += l; u->length -= l; } } } static void pstream_die_callback(struct pa_pstream *p, void *userdata) { struct connection *c = userdata; assert(p && c); connection_free(c); /* pa_log(__FILE__": connection died.\n");*/ } static void pstream_drain_callback(struct pa_pstream *p, void *userdata) { struct connection *c = userdata; assert(p && c); send_memblock(c); } /*** client callbacks ***/ static void client_kill_cb(struct pa_client *c) { assert(c && c->userdata); connection_free(c->userdata); } /*** socket server callbacks ***/ static void on_connection(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata) { struct pa_protocol_native *p = userdata; struct connection *c; assert(io && p); c = pa_xmalloc(sizeof(struct connection)); c->authorized = p->public; c->protocol = p; assert(p->core); c->client = pa_client_new(p->core, "NATIVE", "Client"); assert(c->client); c->client->kill = client_kill_cb; c->client->userdata = c; c->client->owner = p->module; c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->memblock_stat); assert(c->pstream); pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c); pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c); pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c); pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c); c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX); assert(c->pdispatch); c->record_streams = pa_idxset_new(NULL, NULL); c->output_streams = pa_idxset_new(NULL, NULL); assert(c->record_streams && c->output_streams); c->rrobin_index = PA_IDXSET_INVALID; c->subscription = NULL; pa_idxset_put(p->connections, c, NULL); } /*** module entry points ***/ static struct pa_protocol_native* protocol_new_internal(struct pa_core *c, struct pa_module *m, struct pa_modargs *ma) { struct pa_protocol_native *p; int public; assert(c && ma); if (pa_modargs_get_value_boolean(ma, "public", &public) < 0) { pa_log(__FILE__": public= expects numeric argument.\n"); return NULL; } p = pa_xmalloc(sizeof(struct pa_protocol_native)); if (pa_authkey_load_from_home(pa_modargs_get_value(ma, "cookie", PA_NATIVE_COOKIE_FILE), p->auth_cookie, sizeof(p->auth_cookie)) < 0) { pa_xfree(p); return NULL; } p->module = m; p->public = public; p->server = NULL; p->core = c; p->connections = pa_idxset_new(NULL, NULL); assert(p->connections); return p; } struct pa_protocol_native* pa_protocol_native_new(struct pa_core *core, struct pa_socket_server *server, struct pa_module *m, struct pa_modargs *ma) { struct pa_protocol_native *p; if (!(p = protocol_new_internal(core, m, ma))) return NULL; p->server = server; pa_socket_server_set_callback(p->server, on_connection, p); return p; } void pa_protocol_native_free(struct pa_protocol_native *p) { struct connection *c; assert(p); while ((c = pa_idxset_first(p->connections, NULL))) connection_free(c); pa_idxset_free(p->connections, NULL, NULL); if (p->server) pa_socket_server_unref(p->server); pa_xfree(p); } struct pa_protocol_native* pa_protocol_native_new_iochannel(struct pa_core*core, struct pa_iochannel *io, struct pa_module *m, struct pa_modargs *ma) { struct pa_protocol_native *p; if (!(p = protocol_new_internal(core, m, ma))) return NULL; on_connection(NULL, io, p); return p; }