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Diffstat (limited to 'src/pulsecore/protocol-native.c')
| -rw-r--r-- | src/pulsecore/protocol-native.c | 4163 |
1 files changed, 4163 insertions, 0 deletions
diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c new file mode 100644 index 00000000..923a5665 --- /dev/null +++ b/src/pulsecore/protocol-native.c @@ -0,0 +1,4163 @@ +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + Copyright 2006 Pierre Ossman <ossman@cendio.se> 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 <config.h> +#endif + +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <pulse/timeval.h> +#include <pulse/version.h> +#include <pulse/utf8.h> +#include <pulse/util.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/native-common.h> +#include <pulsecore/packet.h> +#include <pulsecore/client.h> +#include <pulsecore/source-output.h> +#include <pulsecore/sink-input.h> +#include <pulsecore/pstream.h> +#include <pulsecore/tagstruct.h> +#include <pulsecore/pdispatch.h> +#include <pulsecore/pstream-util.h> +#include <pulsecore/authkey.h> +#include <pulsecore/namereg.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> +#include <pulsecore/autoload.h> +#include <pulsecore/authkey-prop.h> +#include <pulsecore/strlist.h> +#include <pulsecore/props.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/llist.h> +#include <pulsecore/creds.h> +#include <pulsecore/core-util.h> +#include <pulsecore/ipacl.h> +#include <pulsecore/thread-mq.h> + +#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 + +typedef struct connection connection; +struct pa_protocol_native; + +typedef struct record_stream { + pa_msgobject parent; + + connection *connection; + uint32_t index; + + pa_source_output *source_output; + pa_memblockq *memblockq; + size_t fragment_size; + pa_usec_t source_latency; +} record_stream; + +typedef struct output_stream { + pa_msgobject parent; +} output_stream; + +typedef struct playback_stream { + output_stream parent; + + connection *connection; + uint32_t index; + + pa_sink_input *sink_input; + pa_memblockq *memblockq; + pa_bool_t drain_request; + 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; + +typedef struct upload_stream { + output_stream parent; + + connection *connection; + uint32_t index; + + pa_memchunk memchunk; + size_t length; + char *name; + pa_sample_spec sample_spec; + pa_channel_map channel_map; + pa_proplist *proplist; +} upload_stream; + +struct connection { + pa_msgobject parent; + + pa_bool_t authorized:1; + pa_bool_t is_local:1; + uint32_t version; + pa_protocol_native *protocol; + pa_client *client; + pa_pstream *pstream; + pa_pdispatch *pdispatch; + pa_idxset *record_streams, *output_streams; + uint32_t rrobin_index; + pa_subscription *subscription; + pa_time_event *auth_timeout_event; +}; + +PA_DECLARE_CLASS(record_stream); +#define RECORD_STREAM(o) (record_stream_cast(o)) +static PA_DEFINE_CHECK_TYPE(record_stream, pa_msgobject); + +PA_DECLARE_CLASS(output_stream); +#define OUTPUT_STREAM(o) (output_stream_cast(o)) +static PA_DEFINE_CHECK_TYPE(output_stream, pa_msgobject); + +PA_DECLARE_CLASS(playback_stream); +#define PLAYBACK_STREAM(o) (playback_stream_cast(o)) +static PA_DEFINE_CHECK_TYPE(playback_stream, output_stream); + +PA_DECLARE_CLASS(upload_stream); +#define UPLOAD_STREAM(o) (upload_stream_cast(o)) +static PA_DEFINE_CHECK_TYPE(upload_stream, output_stream); + +PA_DECLARE_CLASS(connection); +#define CONNECTION(o) (connection_cast(o)) +static PA_DEFINE_CHECK_TYPE(connection, pa_msgobject); + +struct pa_protocol_native { + pa_module *module; + pa_core *core; + pa_bool_t public; + pa_socket_server *server; + pa_idxset *connections; + uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH]; + pa_bool_t auth_cookie_in_property; +#ifdef HAVE_CREDS + char *auth_group; +#endif + pa_ip_acl *auth_ip_acl; +}; + +enum { + SINK_INPUT_MESSAGE_POST_DATA = PA_SINK_INPUT_MESSAGE_MAX, /* data from main loop to sink input */ + SINK_INPUT_MESSAGE_DRAIN, /* disabled prebuf, get playback started. */ + SINK_INPUT_MESSAGE_FLUSH, + SINK_INPUT_MESSAGE_TRIGGER, + SINK_INPUT_MESSAGE_SEEK, + SINK_INPUT_MESSAGE_PREBUF_FORCE, + SINK_INPUT_MESSAGE_UPDATE_LATENCY +}; + +enum { + PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, /* data requested from sink input from the main loop */ + PLAYBACK_STREAM_MESSAGE_UNDERFLOW, + PLAYBACK_STREAM_MESSAGE_OVERFLOW, + PLAYBACK_STREAM_MESSAGE_DRAIN_ACK, + 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 send_memblock(connection *c); +static void request_bytes(struct playback_stream*s); + +static void source_output_kill_cb(pa_source_output *o); +static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk); +static 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 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, +}; + +/* 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( + 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)) + send_memblock(s->connection); + + break; + } + + return 0; +} + +static void fix_record_buffer_attr_pre(record_stream *s, pa_bool_t adjust_latency, uint32_t *maxlength, uint32_t *fragsize) { + pa_assert(s); + pa_assert(maxlength); + pa_assert(fragsize); + + if (*maxlength <= 0 || *maxlength > MAX_MEMBLOCKQ_LENGTH) + *maxlength = MAX_MEMBLOCKQ_LENGTH; + + if (*fragsize <= 0) + *fragsize = pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*PA_USEC_PER_MSEC, &s->source_output->sample_spec); + + if (adjust_latency) { + pa_usec_t fragsize_usec; + + /* 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. */ + + fragsize_usec = pa_bytes_to_usec(*fragsize, &s->source_output->sample_spec); + + s->source_latency = pa_source_output_set_requested_latency(s->source_output, fragsize_usec/2); + + if (fragsize_usec >= s->source_latency*2) + fragsize_usec -= s->source_latency; + else + fragsize_usec = s->source_latency; + + *fragsize = pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec); + } else + s->source_latency = 0; +} + +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 = 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 = s->fragment_size; +} + +static record_stream* record_stream_new( + 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) { + + 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->protocol->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, 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 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 = pa_atomic_load(&s->missing)) <= 0) + break; + + if (pa_atomic_cmpxchg(&s->missing, 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; + + /* 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, uint32_t *maxlength, uint32_t *tlength, uint32_t* prebuf, uint32_t* minreq) { + size_t frame_size; + pa_usec_t tlength_usec, minreq_usec, sink_usec; + + pa_assert(s); + pa_assert(maxlength); + pa_assert(tlength); + pa_assert(prebuf); + pa_assert(minreq); + + if (*maxlength <= 0 || *maxlength > MAX_MEMBLOCKQ_LENGTH) + *maxlength = MAX_MEMBLOCKQ_LENGTH; + if (*tlength <= 0) + *tlength = pa_usec_to_bytes(DEFAULT_TLENGTH_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec); + if (*minreq <= 0) + *minreq = pa_usec_to_bytes(DEFAULT_PROCESS_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec); + + frame_size = pa_frame_size(&s->sink_input->sample_spec); + if (*minreq <= 0) + *minreq = frame_size; + if (*tlength < *minreq+frame_size) + *tlength = *minreq+frame_size; + + tlength_usec = pa_bytes_to_usec(*tlength, &s->sink_input->sample_spec); + 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 (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; + + } 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; + } + + s->sink_latency = pa_sink_input_set_requested_latency(s->sink_input, sink_usec); + + 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; + } + + if (tlength_usec < s->sink_latency + 2*minreq_usec) + tlength_usec = s->sink_latency + 2*minreq_usec; + + *tlength = pa_usec_to_bytes(tlength_usec, &s->sink_input->sample_spec); + *minreq = pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec); + + if (*minreq <= 0) { + *minreq += frame_size; + *tlength += frame_size*2; + } + + if (*tlength <= *minreq) + *tlength = *minreq*2 + frame_size; + + if (*prebuf <= 0 || *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( + 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) { + + 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(volume); + 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->protocol->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); + 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->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->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, 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_atomic_store(&s->missing, 0); + s->drain_request = FALSE; + + 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; +} + +static int connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) { + connection *c = CONNECTION(o); + connection_assert_ref(c); + + if (!c->protocol) + return -1; + + switch (code) { + + case CONNECTION_MESSAGE_REVOKE: + pa_pstream_send_revoke(c->pstream, PA_PTR_TO_UINT(userdata)); + break; + + case CONNECTION_MESSAGE_RELEASE: + pa_pstream_send_release(c->pstream, PA_PTR_TO_UINT(userdata)); + break; + } + + return 0; +} + +static void connection_unlink(connection *c) { + record_stream *r; + output_stream *o; + + pa_assert(c); + + if (!c->protocol) + return; + + while ((r = pa_idxset_first(c->record_streams, NULL))) + record_stream_unlink(r); + + while ((o = pa_idxset_first(c->output_streams, NULL))) + if (playback_stream_isinstance(o)) + playback_stream_unlink(PLAYBACK_STREAM(o)); + else + upload_stream_unlink(UPLOAD_STREAM(o)); + + if (c->subscription) + pa_subscription_free(c->subscription); + + if (c->pstream) + pa_pstream_unlink(c->pstream); + + if (c->auth_timeout_event) { + c->protocol->core->mainloop->time_free(c->auth_timeout_event); + c->auth_timeout_event = NULL; + } + + pa_assert_se(pa_idxset_remove_by_data(c->protocol->connections, c, NULL) == c); + c->protocol = NULL; + connection_unref(c); +} + +static void connection_free(pa_object *o) { + connection *c = CONNECTION(o); + + pa_assert(c); + + connection_unlink(c); + + pa_idxset_free(c->record_streams, NULL, NULL); + pa_idxset_free(c->output_streams, NULL, NULL); + + pa_pdispatch_unref(c->pdispatch); + pa_pstream_unref(c->pstream); + pa_client_free(c->client); + + pa_xfree(c); +} + +/* Called from thread context */ +static void request_bytes(playback_stream *s) { + size_t m, previous_missing; + + playback_stream_assert_ref(s); + + m = pa_memblockq_pop_missing(s->memblockq); + + if (m <= 0) + return; + +/* pa_log("request_bytes(%lu)", (unsigned long) m); */ + + previous_missing = pa_atomic_add(&s->missing, 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 send_memblock(connection *c) { + uint32_t start; + record_stream *r; + + start = PA_IDXSET_INVALID; + for (;;) { + pa_memchunk chunk; + + if (!(r = RECORD_STREAM(pa_idxset_rrobin(c->record_streams, &c->rrobin_index)))) + return; + + if (start == PA_IDXSET_INVALID) + start = c->rrobin_index; + else if (start == c->rrobin_index) + return; + + if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) { + pa_memchunk schunk = chunk; + + if (schunk.length > r->fragment_size) + schunk.length = r->fragment_size; + + pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk); + + pa_memblockq_drop(r->memblockq, schunk.length); + pa_memblock_unref(schunk.memblock); + + return; + } + } +} + +static void send_playback_stream_killed(playback_stream *p) { + pa_tagstruct *t; + playback_stream_assert_ref(p); + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, p->index); + pa_pstream_send_tagstruct(p->connection->pstream, t); +} + +static void send_record_stream_killed(record_stream *r) { + pa_tagstruct *t; + record_stream_assert_ref(r); + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, r->index); + pa_pstream_send_tagstruct(r->connection->pstream, t); +} + +/*** sink input callbacks ***/ + +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, + 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, indexr - indexw, TRUE, FALSE); + } + } + + 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, 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; + 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); + + if (pa_memblockq_peek(s->memblockq, chunk) < 0) { + +/* pa_log("UNDERRUN: %lu", (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 (i->thread_info.playing_for > 0) + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, 0, NULL, NULL); + +/* pa_log("adding %llu bytes", (unsigned long long) nbytes); */ + + request_bytes(s); + + return -1; + } + +/* pa_log("NOTUNDERRUN %lu", (unsigned long) chunk->length); */ + + 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); + 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); +} + +/* 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); + + send_playback_stream_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, &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); + + send_record_stream_killed(s); + record_stream_unlink(s); +} + +static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { + record_stream *s; + + pa_source_output_assert_ref(o); + s = RECORD_STREAM(o->userdata); + record_stream_assert_ref(s); + + /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/ + + return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec); +} + +/* 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, &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(connection *c) { + pa_log("protocol error, kicking client"); + connection_unlink(c); +} + +#define CHECK_VALIDITY(pstream, expression, tag, error) do { \ +if (!(expression)) { \ + pa_pstream_send_error((pstream), (tag), (error)); \ + return; \ +} \ +} while(0); + +static pa_tagstruct *reply_new(uint32_t tag) { + pa_tagstruct *reply; + + reply = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); + pa_tagstruct_putu32(reply, tag); + return reply; +} + +static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + playback_stream *s; + uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid, missing; + const char *name = 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; + + pa_sink_input_flags_t flags = 0; + pa_proplist *p; + + 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_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(sink_name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID); + + 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 (!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, muted, syncid, &missing, flags, p, adjust_latency); + 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_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t channel; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + switch (command) { + + case PA_COMMAND_DELETE_PLAYBACK_STREAM: { + playback_stream *s; + if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + playback_stream_unlink(s); + break; + } + + case PA_COMMAND_DELETE_RECORD_STREAM: { + record_stream *s; + if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + record_stream_unlink(s); + break; + } + + case PA_COMMAND_DELETE_UPLOAD_STREAM: { + upload_stream *s; + + if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !upload_stream_isinstance(s)) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + upload_stream_unlink(s); + break; + } + + default: + pa_assert_not_reached(); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + record_stream *s; + uint32_t maxlength, fragment_size; + uint32_t source_index; + const char *name = 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; + 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; + + 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, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, source_index != PA_INVALID_INDEX || !source_name || (*source_name && pa_utf8_valid(source_name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID); + + 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 (!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); + 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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + + connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0); + pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */ +} + +static void command_auth(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const void*cookie; + pa_tagstruct *reply; + pa_bool_t shm_on_remote, do_shm; + + 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 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->protocol->auth_group) { + int r; + gid_t gid; + + if ((gid = pa_get_gid_of_group(c->protocol->auth_group)) == (gid_t) -1) + pa_log_warn("Failed to get GID of group '%s'", c->protocol->auth_group); + else if (gid == creds->gid) + success = TRUE; + + if (!success) { + if ((r = pa_uid_in_group(creds->uid, c->protocol->auth_group)) < 0) + pa_log_warn("Failed to check group membership."); + else if (r > 0) + success = 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 && memcmp(c->protocol->auth_cookie, 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; + + 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; + } + + 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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const char *name = NULL; + pa_proplist *p; + pa_tagstruct *reply; + + 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_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const char *name; + uint32_t idx = PA_IDXSET_INVALID; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_LOOKUP_SINK) { + pa_sink *sink; + if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1))) + idx = sink->index; + } else { + pa_source *source; + pa_assert(command == PA_COMMAND_LOOKUP_SOURCE); + if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1))) + idx = source->index; + } + + if (idx == PA_IDXSET_INVALID) + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + else { + pa_tagstruct *reply; + reply = reply_new(tag); + pa_tagstruct_putu32(reply, idx); + pa_pstream_send_tagstruct(c->pstream, reply); + } +} + +static void command_drain_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + playback_stream *s; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + pa_asyncmsgq_post(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_DRAIN, PA_UINT_TO_PTR(tag), 0, NULL, NULL); +} + +static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_tagstruct *reply; + const pa_mempool_stat *stat; + + connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + stat = pa_mempool_get_stat(c->protocol->core->mempool); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated)); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size)); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated)); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size)); + pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core)); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_playback_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_tagstruct *reply; + playback_stream *s; + struct timeval tv, now; + uint32_t idx; + pa_usec_t latency; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_timeval(t, &tv) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_UPDATE_LATENCY, s, 0, NULL) == 0, tag, PA_ERR_NOENTITY) + + reply = reply_new(tag); + + latency = pa_sink_get_latency(s->sink_input->sink); + latency += pa_bytes_to_usec(s->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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_tagstruct *reply; + record_stream *s; + struct timeval tv, now; + uint32_t idx; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_timeval(t, &tv) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + reply = reply_new(tag); + pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0); + pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source)); + pa_tagstruct_put_boolean(reply, 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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + upload_stream *s; + uint32_t length; + const char *name = NULL; + pa_sample_spec ss; + pa_channel_map map; + pa_tagstruct *reply; + pa_proplist *p; + + 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 && *name && pa_utf8_valid(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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t channel; + upload_stream *s; + uint32_t idx; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + s = pa_idxset_get_by_index(c->output_streams, channel); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, 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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t sink_index; + pa_volume_t volume; + pa_sink *sink; + const char *name, *sink_name; + uint32_t idx; + pa_proplist *p; + pa_tagstruct *reply; + + 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_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (sink_index != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); + else + sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1); + + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + 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; + } + + 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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const char *name; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (pa_scache_remove_item(c->protocol->core, name) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + return; + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void fixup_sample_spec(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(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), + PA_TAG_BOOLEAN, pa_sink_get_mute(sink), + PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX, + PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL, + PA_TAG_USEC, pa_sink_get_latency(sink), + PA_TAG_STRING, sink->driver, + PA_TAG_U32, sink->flags, + PA_TAG_INVALID); + + 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(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), + PA_TAG_BOOLEAN, pa_source_get_mute(source), + PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX, + PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL, + PA_TAG_USEC, pa_source_get_latency(source), + PA_TAG_STRING, source->driver, + PA_TAG_U32, source->flags, + PA_TAG_INVALID); + + 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(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, module->n_used); + pa_tagstruct_put_boolean(t, module->auto_unload); +} + +static void sink_input_fill_tagstruct(connection *c, pa_tagstruct *t, pa_sink_input *s) { + pa_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(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(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, 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_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_client *client = NULL; + pa_module *module = NULL; + pa_sink_input *si = NULL; + pa_source_output *so = NULL; + pa_scache_entry *sce = NULL; + const char *name; + pa_tagstruct *reply; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command != PA_COMMAND_GET_CLIENT_INFO && + command != PA_COMMAND_GET_MODULE_INFO && + command != PA_COMMAND_GET_SINK_INPUT_INFO && + command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO && + pa_tagstruct_gets(t, &name) < 0) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_GET_SINK_INFO) { + if (idx != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + } else if (command == PA_COMMAND_GET_SOURCE_INFO) { + if (idx != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + } else if (command == PA_COMMAND_GET_CLIENT_INFO) + client = pa_idxset_get_by_index(c->protocol->core->clients, idx); + else if (command == PA_COMMAND_GET_MODULE_INFO) + module = pa_idxset_get_by_index(c->protocol->core->modules, idx); + else if (command == PA_COMMAND_GET_SINK_INPUT_INFO) + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO) + so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + else { + pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO); + if (idx != PA_INVALID_INDEX) + sce = pa_idxset_get_by_index(c->protocol->core->scache, idx); + else + sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0); + } + + if (!sink && !source && !client && !module && !si && !so && !sce) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + return; + } + + reply = reply_new(tag); + if (sink) + sink_fill_tagstruct(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_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_idxset *i; + uint32_t idx; + void *p; + pa_tagstruct *reply; + + connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + + if (command == PA_COMMAND_GET_SINK_INFO_LIST) + i = c->protocol->core->sinks; + else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) + i = c->protocol->core->sources; + else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) + i = c->protocol->core->clients; + else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) + i = c->protocol->core->modules; + else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) + i = c->protocol->core->sink_inputs; + else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) + i = c->protocol->core->source_outputs; + else { + pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); + i = c->protocol->core->scache; + } + + if (i) { + for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) { + if (command == PA_COMMAND_GET_SINK_INFO_LIST) + sink_fill_tagstruct(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_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_tagstruct *reply; + char txt[256]; + const char *n; + pa_sample_spec fixed_ss; + + 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; + connection *c = CONNECTION(userdata); + + connection_assert_ref(c); + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT); + pa_tagstruct_putu32(t, (uint32_t) -1); + pa_tagstruct_putu32(t, e); + pa_tagstruct_putu32(t, idx); + pa_pstream_send_tagstruct(c->pstream, t); +} + +static void command_subscribe(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_subscription_mask_t m; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &m) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID); + + if (c->subscription) + pa_subscription_free(c->subscription); + + if (m != 0) { + c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c); + pa_assert(c->subscription); + } else + c->subscription = NULL; + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_volume( + PA_GCC_UNUSED pa_pdispatch *pd, + uint32_t command, + uint32_t tag, + pa_tagstruct *t, + void *userdata) { + + connection *c = CONNECTION(userdata); + uint32_t idx; + pa_cvolume volume; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_sink_input *si = NULL; + const char *name = NULL; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) || + (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) || + pa_tagstruct_get_cvolume(t, &volume) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID); + + switch (command) { + + case PA_COMMAND_SET_SINK_VOLUME: + if (idx != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + break; + + case PA_COMMAND_SET_SOURCE_VOLUME: + if (idx != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + break; + + case PA_COMMAND_SET_SINK_INPUT_VOLUME: + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + break; + + default: + pa_assert_not_reached(); + } + + CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY); + + if (sink) + pa_sink_set_volume(sink, &volume); + else if (source) + pa_source_set_volume(source, &volume); + else if (si) + pa_sink_input_set_volume(si, &volume); + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_mute( + PA_GCC_UNUSED pa_pdispatch *pd, + uint32_t command, + uint32_t tag, + pa_tagstruct *t, + void *userdata) { + + connection *c = CONNECTION(userdata); + uint32_t idx; + pa_bool_t mute; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_sink_input *si = NULL; + const char *name = NULL; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) || + (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) || + pa_tagstruct_get_boolean(t, &mute) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + + switch (command) { + + case PA_COMMAND_SET_SINK_MUTE: + + if (idx != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + + break; + + case PA_COMMAND_SET_SOURCE_MUTE: + if (idx != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + + break; + + case PA_COMMAND_SET_SINK_INPUT_MUTE: + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + break; + + default: + pa_assert_not_reached(); + } + + CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY); + + if (sink) + pa_sink_set_mute(sink, mute); + else if (source) + pa_source_set_mute(source, mute); + else if (si) + pa_sink_input_set_mute(si, mute); + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_cork_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + pa_bool_t b; + playback_stream *s; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + pa_sink_input_cork(s->sink_input, b); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_trigger_or_flush_or_prebuf_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + playback_stream *s; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + switch (command) { + case PA_COMMAND_FLUSH_PLAYBACK_STREAM: + pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL); + break; + + case PA_COMMAND_PREBUF_PLAYBACK_STREAM: + pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL); + break; + + case PA_COMMAND_TRIGGER_PLAYBACK_STREAM: + pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL); + break; + + default: + pa_assert_not_reached(); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_cork_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + record_stream *s; + pa_bool_t b; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_source_output_cork(s->source_output, b); + pa_memblockq_prebuf_force(s->memblockq); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_flush_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + record_stream *s; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_memblockq_flush(s->memblockq); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + uint32_t maxlength, tlength, prebuf, minreq, fragsize; + pa_tagstruct *reply; + + 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; + + 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) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + fix_playback_buffer_attr_pre(s, adjust_latency, &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; + 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) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + fix_record_buffer_attr_pre(s, adjust_latency, &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) { + connection *c = CONNECTION(userdata); + uint32_t idx; + uint32_t rate; + + 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) { + connection *c = CONNECTION(userdata); + uint32_t idx; + uint32_t mode; + pa_proplist *p; + + 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) { + connection *c = CONNECTION(userdata); + uint32_t idx; + unsigned changed = 0; + pa_proplist *p; + pa_strlist *l = NULL; + + 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 += 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_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const char *s; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &s) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !s || (*s && pa_utf8_valid(s)), tag, PA_ERR_INVALID); + + pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_stream_name(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + const char *name; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) { + playback_stream *s; + + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + pa_sink_input_set_name(s->sink_input, name); + + } else { + record_stream *s; + 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_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + if (command == PA_COMMAND_KILL_CLIENT) { + pa_client *client; + + client = pa_idxset_get_by_index(c->protocol->core->clients, idx); + CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY); + + connection_ref(c); + pa_client_kill(client); + + } else if (command == PA_COMMAND_KILL_SINK_INPUT) { + pa_sink_input *s; + + s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + connection_ref(c); + pa_sink_input_kill(s); + } else { + pa_source_output *s; + + pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT); + + s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + connection_ref(c); + pa_source_output_kill(s); + } + + pa_pstream_send_simple_ack(c->pstream, tag); + connection_unref(c); +} + +static void command_load_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_module *m; + const char *name, *argument; + pa_tagstruct *reply; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_gets(t, &argument) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID); + + if (!(m = pa_module_load(c->protocol->core, name, argument))) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED); + return; + } + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, m->index); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_unload_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx; + pa_module *m; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + m = pa_idxset_get_by_index(c->protocol->core->modules, idx); + CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY); + + pa_module_unload_request(m); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_add_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const char *name, *module, *argument; + uint32_t type; + uint32_t idx; + pa_tagstruct *reply; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_getu32(t, &type) < 0 || + pa_tagstruct_gets(t, &module) < 0 || + pa_tagstruct_gets(t, &argument) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID); + + if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, idx); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_remove_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const char *name = NULL; + uint32_t type, idx = PA_IDXSET_INVALID; + int r; + + connection_assert_ref(c); + pa_assert(t); + + if ((pa_tagstruct_getu32(t, &idx) < 0 && + (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_getu32(t, &type) < 0)) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID); + + if (name) + r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE); + else + r = pa_autoload_remove_by_index(c->protocol->core, idx); + + CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY); + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) { + pa_assert(t && e); + + pa_tagstruct_putu32(t, e->index); + pa_tagstruct_puts(t, e->name); + pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1); + pa_tagstruct_puts(t, e->module); + pa_tagstruct_puts(t, e->argument); +} + +static void command_get_autoload_info(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + const pa_autoload_entry *a = NULL; + uint32_t type, idx; + const char *name; + pa_tagstruct *reply; + + connection_assert_ref(c); + pa_assert(t); + + if ((pa_tagstruct_getu32(t, &idx) < 0 && + (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_getu32(t, &type) < 0)) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + + if (name) + a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE); + else + a = pa_autoload_get_by_index(c->protocol->core, idx); + + CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY); + + reply = reply_new(tag); + autoload_fill_tagstruct(reply, a); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_autoload_info_list(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + pa_tagstruct *reply; + + connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + + if (c->protocol->core->autoload_hashmap) { + pa_autoload_entry *a; + void *state = NULL; + + while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL))) + autoload_fill_tagstruct(reply, a); + } + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX; + const char *name = NULL; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_getu32(t, &idx_device) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, idx_device != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_MOVE_SINK_INPUT) { + pa_sink_input *si = NULL; + pa_sink *sink = NULL; + + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + + if (idx_device != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + + CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY); + + if (pa_sink_input_move_to(si, sink) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } else { + pa_source_output *so = NULL; + pa_source *source; + + pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT); + + so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + + if (idx_device != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + + CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY); + + if (pa_source_output_move_to(so, source) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + connection *c = CONNECTION(userdata); + uint32_t idx = PA_INVALID_INDEX; + const char *name = NULL; + pa_bool_t b; + + connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || !*name || pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SUSPEND_SINK) { + + if (idx == PA_INVALID_INDEX && name && !*name) { + + if (pa_sink_suspend_all(c->protocol->core, b) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } else { + pa_sink *sink = NULL; + + if (idx != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + if (pa_sink_suspend(sink, b) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } + } else { + + pa_assert(command == PA_COMMAND_SUSPEND_SOURCE); + + if (idx == PA_INVALID_INDEX && name && !*name) { + + if (pa_source_suspend_all(c->protocol->core, b) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + + } else { + pa_source *source; + + if (idx != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + + CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); + + if (pa_source_suspend(source, b) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +/*** pstream callbacks ***/ + +static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const pa_creds *creds, void *userdata) { + connection *c = CONNECTION(userdata); + + pa_assert(p); + pa_assert(packet); + connection_assert_ref(c); + + if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) { + pa_log("invalid packet."); + connection_unlink(c); + } +} + +static void pstream_memblock_callback(pa_pstream *p, uint32_t channel, int64_t offset, pa_seek_mode_t seek, const pa_memchunk *chunk, void *userdata) { + connection *c = CONNECTION(userdata); + output_stream *stream; + + pa_assert(p); + pa_assert(chunk); + connection_assert_ref(c); + + if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) { + pa_log("client sent block for invalid stream."); + /* Ignoring */ + return; + } + + if (playback_stream_isinstance(stream)) { + playback_stream *ps = PLAYBACK_STREAM(stream); + + if (seek != PA_SEEK_RELATIVE || offset != 0) + pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_SEEK, PA_UINT_TO_PTR(seek), offset, NULL, NULL); + + pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL); + + } else { + upload_stream *u = UPLOAD_STREAM(stream); + size_t l; + + if (!u->memchunk.memblock) { + if (u->length == chunk->length) { + u->memchunk = *chunk; + pa_memblock_ref(u->memchunk.memblock); + u->length = 0; + } else { + u->memchunk.memblock = pa_memblock_new(c->protocol->core->mempool, u->length); + u->memchunk.index = u->memchunk.length = 0; + } + } + + pa_assert(u->memchunk.memblock); + + l = u->length; + if (l > chunk->length) + l = chunk->length; + + + if (l > 0) { + void *src, *dst; + dst = pa_memblock_acquire(u->memchunk.memblock); + src = pa_memblock_acquire(chunk->memblock); + + memcpy((uint8_t*) dst + u->memchunk.index + u->memchunk.length, + (uint8_t*) src+chunk->index, l); + + pa_memblock_release(u->memchunk.memblock); + pa_memblock_release(chunk->memblock); + + u->memchunk.length += l; + u->length -= l; + } + } +} + +static void pstream_die_callback(pa_pstream *p, void *userdata) { + connection *c = CONNECTION(userdata); + + pa_assert(p); + connection_assert_ref(c); + + connection_unlink(c); + pa_log_info("connection died."); +} + +static void pstream_drain_callback(pa_pstream *p, void *userdata) { + connection *c = CONNECTION(userdata); + + pa_assert(p); + connection_assert_ref(c); + + send_memblock(c); +} + +static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) { + pa_thread_mq *q; + + if (!(q = pa_thread_mq_get())) + pa_pstream_send_revoke(p, block_id); + else + pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL); +} + +static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) { + pa_thread_mq *q; + + if (!(q = pa_thread_mq_get())) + pa_pstream_send_release(p, block_id); + else + pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL); +} + +/*** client callbacks ***/ + +static void client_kill_cb(pa_client *c) { + pa_assert(c); + + connection_unlink(CONNECTION(c->userdata)); +} + +/*** socket server callbacks ***/ + +static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { + connection *c = CONNECTION(userdata); + + pa_assert(m); + pa_assert(tv); + connection_assert_ref(c); + pa_assert(c->auth_timeout_event == e); + + if (!c->authorized) + connection_unlink(c); +} + +static void on_connection(PA_GCC_UNUSED pa_socket_server*s, pa_iochannel *io, void *userdata) { + pa_protocol_native *p = userdata; + connection *c; + char cname[256], pname[128]; + + pa_assert(io); + pa_assert(p); + + if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { + pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_iochannel_free(io); + return; + } + + c = pa_msgobject_new(connection); + c->parent.parent.free = connection_free; + c->parent.process_msg = connection_process_msg; + + c->authorized = p->public; + + if (!c->authorized && p->auth_ip_acl && pa_ip_acl_check(p->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) { + pa_log_info("Client authenticated by IP ACL."); + c->authorized = 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; + c->protocol = p; + pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname)); + pa_snprintf(cname, sizeof(cname), "Native client (%s)", pname); + c->client = pa_client_new(p->core, __FILE__, cname); + pa_proplist_sets(c->client->proplist, "native-protocol.peer", pname); + c->client->kill = client_kill_cb; + c->client->userdata = c; + c->client->module = p->module; + + c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool); + + pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c); + pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c); + pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c); + pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c); + pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c); + pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c); + + c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX); + + c->record_streams = pa_idxset_new(NULL, NULL); + c->output_streams = pa_idxset_new(NULL, NULL); + + c->rrobin_index = PA_IDXSET_INVALID; + c->subscription = NULL; + + pa_idxset_put(p->connections, c, NULL); + +#ifdef HAVE_CREDS + if (pa_iochannel_creds_supported(io)) + pa_iochannel_creds_enable(io); +#endif +} + +/*** module entry points ***/ + +static int load_key(pa_protocol_native*p, const char*fn) { + pa_assert(p); + + p->auth_cookie_in_property = FALSE; + + if (!fn && pa_authkey_prop_get(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) { + pa_log_info("using already loaded auth cookie."); + pa_authkey_prop_ref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME); + p->auth_cookie_in_property = TRUE; + return 0; + } + + if (!fn) + fn = PA_NATIVE_COOKIE_FILE; + + if (pa_authkey_load_auto(fn, p->auth_cookie, sizeof(p->auth_cookie)) < 0) + return -1; + + pa_log_info("loading cookie from disk."); + + if (pa_authkey_prop_put(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) + p->auth_cookie_in_property = TRUE; + + return 0; +} + +static pa_protocol_native* protocol_new_internal(pa_core *c, pa_module *m, pa_modargs *ma) { + pa_protocol_native *p; + pa_bool_t public = FALSE; + const char *acl; + + pa_assert(c); + pa_assert(ma); + + if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &public) < 0) { + pa_log("auth-anonymous= expects a boolean argument."); + return NULL; + } + + p = pa_xnew(pa_protocol_native, 1); + p->core = c; + p->module = m; + p->public = public; + p->server = NULL; + p->auth_ip_acl = NULL; + +#ifdef HAVE_CREDS + { + pa_bool_t a = TRUE; + if (pa_modargs_get_value_boolean(ma, "auth-group-enabled", &a) < 0) { + pa_log("auth-group-enabled= expects a boolean argument."); + return NULL; + } + p->auth_group = a ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL; + + if (p->auth_group) + pa_log_info("Allowing access to group '%s'.", p->auth_group); + } +#endif + + + if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) { + + if (!(p->auth_ip_acl = pa_ip_acl_new(acl))) { + pa_log("Failed to parse IP ACL '%s'", acl); + goto fail; + } + } + + if (load_key(p, pa_modargs_get_value(ma, "cookie", NULL)) < 0) + goto fail; + + p->connections = pa_idxset_new(NULL, NULL); + + return p; + +fail: +#ifdef HAVE_CREDS + pa_xfree(p->auth_group); +#endif + if (p->auth_ip_acl) + pa_ip_acl_free(p->auth_ip_acl); + pa_xfree(p); + return NULL; +} + +pa_protocol_native* pa_protocol_native_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma) { + char t[256]; + pa_protocol_native *p; + + if (!(p = protocol_new_internal(core, m, ma))) + return NULL; + + p->server = pa_socket_server_ref(server); + pa_socket_server_set_callback(p->server, on_connection, p); + + if (pa_socket_server_get_address(p->server, t, sizeof(t))) { + pa_strlist *l; + l = pa_property_get(core, PA_NATIVE_SERVER_PROPERTY_NAME); + l = pa_strlist_prepend(l, t); + pa_property_replace(core, PA_NATIVE_SERVER_PROPERTY_NAME, l); + } + + return p; +} + +void pa_protocol_native_free(pa_protocol_native *p) { + connection *c; + pa_assert(p); + + while ((c = pa_idxset_first(p->connections, NULL))) + connection_unlink(c); + pa_idxset_free(p->connections, NULL, NULL); + + if (p->server) { + char t[256]; + + if (pa_socket_server_get_address(p->server, t, sizeof(t))) { + pa_strlist *l; + l = pa_property_get(p->core, PA_NATIVE_SERVER_PROPERTY_NAME); + l = pa_strlist_remove(l, t); + + if (l) + pa_property_replace(p->core, PA_NATIVE_SERVER_PROPERTY_NAME, l); + else + pa_property_remove(p->core, PA_NATIVE_SERVER_PROPERTY_NAME); + } + + pa_socket_server_unref(p->server); + } + + if (p->auth_cookie_in_property) + pa_authkey_prop_unref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME); + + if (p->auth_ip_acl) + pa_ip_acl_free(p->auth_ip_acl); + +#ifdef HAVE_CREDS + pa_xfree(p->auth_group); +#endif + pa_xfree(p); +} + +pa_protocol_native* pa_protocol_native_new_iochannel( + pa_core*core, + pa_iochannel *io, + pa_module *m, + pa_modargs *ma) { + + pa_protocol_native *p; + + if (!(p = protocol_new_internal(core, m, ma))) + return NULL; + + on_connection(NULL, io, p); + + return p; +} |