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Diffstat (limited to 'src/pulsecore/protocol-native.c')
| -rw-r--r-- | src/pulsecore/protocol-native.c | 5514 |
1 files changed, 5514 insertions, 0 deletions
diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c new file mode 100644 index 0000000..e8559b2 --- /dev/null +++ b/src/pulsecore/protocol-native.c @@ -0,0 +1,5514 @@ +/*** + 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 2.1 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, see <http://www.gnu.org/licenses/>. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <pulse/rtclock.h> +#include <pulse/timeval.h> +#include <pulse/version.h> +#include <pulse/utf8.h> +#include <pulse/util.h> +#include <pulse/xmalloc.h> +#include <pulse/internal.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/namereg.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> +#include <pulsecore/mem.h> +#include <pulsecore/strlist.h> +#include <pulsecore/shared.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/creds.h> +#include <pulsecore/core-util.h> +#include <pulsecore/ipacl.h> +#include <pulsecore/thread-mq.h> +#include <pulsecore/mem.h> + +#include "protocol-native.h" + +/* #define PROTOCOL_NATIVE_DEBUG */ + +/* Kick a client if it doesn't authenticate within this time */ +#define AUTH_TIMEOUT (60 * PA_USEC_PER_SEC) + +/* Don't accept more connection than this */ +#define MAX_CONNECTIONS 64 + +#define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */ +#define DEFAULT_TLENGTH_MSEC 2000 /* 2s */ +#define DEFAULT_PROCESS_MSEC 20 /* 20ms */ +#define DEFAULT_FRAGSIZE_MSEC DEFAULT_TLENGTH_MSEC + +struct pa_native_protocol; + +typedef struct record_stream { + pa_msgobject parent; + + pa_native_connection *connection; + uint32_t index; + + pa_source_output *source_output; + pa_memblockq *memblockq; + + bool adjust_latency:1; + bool early_requests:1; + + /* Requested buffer attributes */ + pa_buffer_attr buffer_attr_req; + /* Fixed-up and adjusted buffer attributes */ + pa_buffer_attr buffer_attr; + + pa_atomic_t on_the_fly; + pa_usec_t configured_source_latency; + size_t drop_initial; + + /* Only updated after SOURCE_OUTPUT_MESSAGE_UPDATE_LATENCY */ + size_t on_the_fly_snapshot; + pa_usec_t current_monitor_latency; + pa_usec_t current_source_latency; +} record_stream; + +#define RECORD_STREAM(o) (record_stream_cast(o)) +PA_DEFINE_PRIVATE_CLASS(record_stream, pa_msgobject); + +typedef struct output_stream { + pa_msgobject parent; +} output_stream; + +#define OUTPUT_STREAM(o) (output_stream_cast(o)) +PA_DEFINE_PRIVATE_CLASS(output_stream, pa_msgobject); + +typedef struct playback_stream { + output_stream parent; + + pa_native_connection *connection; + uint32_t index; + + pa_sink_input *sink_input; + pa_memblockq *memblockq; + + bool adjust_latency:1; + bool early_requests:1; + + bool is_underrun:1; + bool drain_request:1; + uint32_t drain_tag; + uint32_t syncid; + + /* Optimization to avoid too many rewinds with a lot of small blocks */ + pa_atomic_t seek_or_post_in_queue; + int64_t seek_windex; + + pa_atomic_t missing; + pa_usec_t configured_sink_latency; + /* Requested buffer attributes */ + pa_buffer_attr buffer_attr_req; + /* Fixed-up and adjusted buffer attributes */ + pa_buffer_attr buffer_attr; + + /* Only updated after SINK_INPUT_MESSAGE_UPDATE_LATENCY */ + int64_t read_index, write_index; + size_t render_memblockq_length; + pa_usec_t current_sink_latency; + uint64_t playing_for, underrun_for; +} playback_stream; + +#define PLAYBACK_STREAM(o) (playback_stream_cast(o)) +PA_DEFINE_PRIVATE_CLASS(playback_stream, output_stream); + +typedef struct upload_stream { + output_stream parent; + + pa_native_connection *connection; + uint32_t index; + + pa_memchunk memchunk; + size_t length; + char *name; + pa_sample_spec sample_spec; + pa_channel_map channel_map; + pa_proplist *proplist; +} upload_stream; + +#define UPLOAD_STREAM(o) (upload_stream_cast(o)) +PA_DEFINE_PRIVATE_CLASS(upload_stream, output_stream); + +struct pa_native_connection { + pa_msgobject parent; + pa_native_protocol *protocol; + pa_native_options *options; + bool authorized:1; + bool is_local:1; + uint32_t version; + pa_client *client; + /* R/W mempool, one per client connection, for srbchannel transport. + * Both server and client can write to this shm area. + * + * Note: This will be NULL if our connection with the client does + * not support srbchannels */ + pa_mempool *rw_mempool; + 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_srbchannel *srbpending; +}; + +#define PA_NATIVE_CONNECTION(o) (pa_native_connection_cast(o)) +PA_DEFINE_PRIVATE_CLASS(pa_native_connection, pa_msgobject); + +struct pa_native_protocol { + PA_REFCNT_DECLARE; + + pa_core *core; + pa_idxset *connections; + + pa_strlist *servers; + pa_hook hooks[PA_NATIVE_HOOK_MAX]; + + pa_hashmap *extensions; +}; + +enum { + SOURCE_OUTPUT_MESSAGE_UPDATE_LATENCY = PA_SOURCE_OUTPUT_MESSAGE_MAX +}; + +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, + SINK_INPUT_MESSAGE_UPDATE_BUFFER_ATTR +}; + +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, + PLAYBACK_STREAM_MESSAGE_UPDATE_TLENGTH +}; + +enum { + RECORD_STREAM_MESSAGE_POST_DATA /* data from source output to main loop */ +}; + +enum { + CONNECTION_MESSAGE_RELEASE, + CONNECTION_MESSAGE_REVOKE +}; + +static bool sink_input_process_underrun_cb(pa_sink_input *i); +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_sink_state_t old_state, pa_suspend_cause_t old_suspend_cause); +static void sink_input_moving_cb(pa_sink_input *i, pa_sink *dest); +static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes); +static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes); +static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes); +static void sink_input_send_event_cb(pa_sink_input *i, const char *event, pa_proplist *pl); + +static void native_connection_send_memblock(pa_native_connection *c); +static void playback_stream_request_bytes(struct playback_stream*s); + +static void source_output_kill_cb(pa_source_output *o); +static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk); +static void source_output_suspend_cb(pa_source_output *o, pa_source_state_t old_state, pa_suspend_cause_t old_suspend_cause); +static void source_output_moving_cb(pa_source_output *o, pa_source *dest); +static pa_usec_t source_output_get_latency_cb(pa_source_output *o); +static void source_output_send_event_cb(pa_source_output *o, const char *event, pa_proplist *pl); + +static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk); +static int source_output_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk); + +/* structure management */ + +/* Called from main context */ +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); +} + +/* Called from main context */ +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); +} + +/* Called from main context */ +static upload_stream* upload_stream_new( + pa_native_connection *c, + const pa_sample_spec *ss, + const pa_channel_map *map, + const char *name, + size_t length, + pa_proplist *p) { + + upload_stream *s; + + pa_assert(c); + pa_assert(ss); + pa_assert(name); + pa_assert(length > 0); + pa_assert(p); + + s = pa_msgobject_new(upload_stream); + s->parent.parent.parent.free = upload_stream_free; + s->connection = c; + s->sample_spec = *ss; + s->channel_map = *map; + s->name = pa_xstrdup(name); + pa_memchunk_reset(&s->memchunk); + s->length = length; + s->proplist = pa_proplist_copy(p); + pa_proplist_update(s->proplist, PA_UPDATE_MERGE, c->client->proplist); + + pa_idxset_put(c->output_streams, s, &s->index); + + return s; +} + +/* Called from main context */ +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); +} + +/* Called from main context */ +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); +} + +/* Called from main context */ +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: + + /* We try to keep up to date with how many bytes are + * currently on the fly */ + pa_atomic_sub(&s->on_the_fly, chunk->length); + + if (pa_memblockq_push_align(s->memblockq, chunk) < 0) { +/* pa_log_warn("Failed to push data into output queue."); */ + return -1; + } + + if (!pa_pstream_is_pending(s->connection->pstream)) + native_connection_send_memblock(s->connection); + + break; + } + + return 0; +} + +/* Called from main context */ +static void fix_record_buffer_attr_pre(record_stream *s) { + + size_t frame_size; + pa_usec_t orig_fragsize_usec, fragsize_usec, source_usec; + + pa_assert(s); + + /* This function will be called from the main thread, before as + * well as after the source output has been activated using + * pa_source_output_put()! That means it may not touch any + * ->thread_info data! */ + + frame_size = pa_frame_size(&s->source_output->sample_spec); + s->buffer_attr = s->buffer_attr_req; + + if (s->buffer_attr.maxlength == (uint32_t) -1 || s->buffer_attr.maxlength > MAX_MEMBLOCKQ_LENGTH) + s->buffer_attr.maxlength = MAX_MEMBLOCKQ_LENGTH; + if (s->buffer_attr.maxlength <= 0) + s->buffer_attr.maxlength = (uint32_t) frame_size; + + if (s->buffer_attr.fragsize == (uint32_t) -1) + s->buffer_attr.fragsize = (uint32_t) pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*PA_USEC_PER_MSEC, &s->source_output->sample_spec); + if (s->buffer_attr.fragsize <= 0) + s->buffer_attr.fragsize = (uint32_t) frame_size; + + orig_fragsize_usec = fragsize_usec = pa_bytes_to_usec(s->buffer_attr.fragsize, &s->source_output->sample_spec); + + if (s->early_requests) { + + /* In early request mode we need to emulate the classic + * fragment-based playback model. Unfortunately we have no + * mechanism to tell the source how often we want it to send us + * data. The next best thing we can do is to set the source's + * total buffer (i.e. its latency) to the fragment size. That + * way it will have to send data at least that often. */ + + source_usec = fragsize_usec; + + } else if (s->adjust_latency) { + + /* So, the user asked us to adjust the latency according to + * what the source can provide. We set the source to whatever + * latency it can provide that is closest to what we want, and + * let the client buffer be equally large. This does NOT mean + * that we are doing (2 * fragsize) bytes of buffering, since + * the client-side buffer is only data that is on the way to + * the client. */ + + source_usec = fragsize_usec; + + } else { + + /* Ok, the user didn't ask us to adjust the latency, hence we + * don't */ + + source_usec = (pa_usec_t) -1; + } + + if (source_usec != (pa_usec_t) -1) + s->configured_source_latency = pa_source_output_set_requested_latency(s->source_output, source_usec); + else + s->configured_source_latency = 0; + + if (s->early_requests) { + + /* Ok, we didn't necessarily get what we were asking for. We + * might still get the proper fragment interval, we just can't + * guarantee it. */ + + if (fragsize_usec != s->configured_source_latency) + pa_log_debug("Could not configure a sufficiently low latency. Early requests might not be satisfied."); + + } else if (s->adjust_latency) { + + /* We keep the client buffer large enough to transfer one + * hardware-buffer-sized chunk at a time to the client. */ + + fragsize_usec = s->configured_source_latency; + } + + if (pa_usec_to_bytes(orig_fragsize_usec, &s->source_output->sample_spec) != + pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec)) + + s->buffer_attr.fragsize = (uint32_t) pa_usec_to_bytes(fragsize_usec, &s->source_output->sample_spec); + + if (s->buffer_attr.fragsize <= 0) + s->buffer_attr.fragsize = (uint32_t) frame_size; +} + +/* Called from main context */ +static void fix_record_buffer_attr_post(record_stream *s) { + size_t base; + + pa_assert(s); + + /* This function will be called from the main thread, before as + * well as after the source output has been activated using + * pa_source_output_put()! That means it may not touch and + * ->thread_info data! */ + + base = pa_frame_size(&s->source_output->sample_spec); + + s->buffer_attr.fragsize = (s->buffer_attr.fragsize/base)*base; + if (s->buffer_attr.fragsize <= 0) + s->buffer_attr.fragsize = base; + + if (s->buffer_attr.fragsize > s->buffer_attr.maxlength) + s->buffer_attr.fragsize = s->buffer_attr.maxlength; +} + +/* Called from main context */ +static record_stream* record_stream_new( + pa_native_connection *c, + pa_source *source, + pa_sample_spec *ss, + pa_channel_map *map, + pa_idxset *formats, + pa_buffer_attr *attr, + pa_cvolume *volume, + bool muted, + bool muted_set, + pa_source_output_flags_t flags, + pa_proplist *p, + bool adjust_latency, + bool early_requests, + bool relative_volume, + bool peak_detect, + pa_sink_input *direct_on_input, + int *ret) { + + /* Note: This function takes ownership of the 'formats' param, so we need + * to take extra care to not leak it */ + + record_stream *s; + pa_source_output *source_output = NULL; + pa_source_output_new_data data; + char *memblockq_name; + + pa_assert(c); + pa_assert(ss); + pa_assert(p); + pa_assert(ret); + + pa_source_output_new_data_init(&data); + + pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p); + data.driver = __FILE__; + data.module = c->options->module; + data.client = c->client; + if (source) + pa_source_output_new_data_set_source(&data, source, false, true); + if (pa_sample_spec_valid(ss)) + pa_source_output_new_data_set_sample_spec(&data, ss); + if (pa_channel_map_valid(map)) + pa_source_output_new_data_set_channel_map(&data, map); + if (formats) + pa_source_output_new_data_set_formats(&data, formats); + data.direct_on_input = direct_on_input; + if (volume) { + pa_source_output_new_data_set_volume(&data, volume); + data.volume_is_absolute = !relative_volume; + data.save_volume = false; + } + if (muted_set) { + pa_source_output_new_data_set_muted(&data, muted); + data.save_muted = false; + } + if (peak_detect) + data.resample_method = PA_RESAMPLER_PEAKS; + data.flags = flags; + + *ret = -pa_source_output_new(&source_output, c->protocol->core, &data); + + 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->buffer_attr_req = *attr; + s->adjust_latency = adjust_latency; + s->early_requests = early_requests; + pa_atomic_store(&s->on_the_fly, 0); + + s->source_output->parent.process_msg = source_output_process_msg; + 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->moving = source_output_moving_cb; + s->source_output->suspend = source_output_suspend_cb; + s->source_output->send_event = source_output_send_event_cb; + s->source_output->userdata = s; + + fix_record_buffer_attr_pre(s); + + memblockq_name = pa_sprintf_malloc("native protocol record stream memblockq [%u]", s->source_output->index); + s->memblockq = pa_memblockq_new( + memblockq_name, + 0, + s->buffer_attr.maxlength, + 0, + &source_output->sample_spec, + 1, + 0, + 0, + NULL); + pa_xfree(memblockq_name); + + pa_memblockq_get_attr(s->memblockq, &s->buffer_attr); + fix_record_buffer_attr_post(s); + + *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->buffer_attr.fragsize, &source_output->sample_spec) + (double) s->configured_source_latency) / PA_USEC_PER_MSEC, + (double) pa_bytes_to_usec(s->buffer_attr.fragsize, &source_output->sample_spec) / PA_USEC_PER_MSEC, + (double) s->configured_source_latency / PA_USEC_PER_MSEC); + + pa_source_output_put(s->source_output); + return s; +} + +/* Called from main context */ +static void record_stream_send_killed(record_stream *r) { + pa_tagstruct *t; + record_stream_assert_ref(r); + + t = pa_tagstruct_new(); + 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); +} + +/* Called from main context */ +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); +} + +/* Called from main context */ +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); +} + +/* Called from main context */ +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; + int l = 0; + + for (;;) { + if ((l = pa_atomic_load(&s->missing)) <= 0) + return 0; + + if (pa_atomic_cmpxchg(&s->missing, l, 0)) + break; + } + + t = pa_tagstruct_new(); + 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, (uint32_t) l); + pa_pstream_send_tagstruct(s->connection->pstream, t); + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("Requesting %lu bytes", (unsigned long) l); +#endif + break; + } + + case PLAYBACK_STREAM_MESSAGE_UNDERFLOW: { + pa_tagstruct *t; + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("signalling underflow"); +#endif + + /* Report that we're empty */ + t = pa_tagstruct_new(); + pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, s->index); + if (s->connection->version >= 23) + pa_tagstruct_puts64(t, offset); + 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(); + 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 started playback */ + t = pa_tagstruct_new(); + 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; + + case PLAYBACK_STREAM_MESSAGE_UPDATE_TLENGTH: + + s->buffer_attr.tlength = (uint32_t) offset; + + if (s->connection->version >= 15) { + pa_tagstruct *t; + + t = pa_tagstruct_new(); + pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_BUFFER_ATTR_CHANGED); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, s->index); + pa_tagstruct_putu32(t, s->buffer_attr.maxlength); + pa_tagstruct_putu32(t, s->buffer_attr.tlength); + pa_tagstruct_putu32(t, s->buffer_attr.prebuf); + pa_tagstruct_putu32(t, s->buffer_attr.minreq); + pa_tagstruct_put_usec(t, s->configured_sink_latency); + pa_pstream_send_tagstruct(s->connection->pstream, t); + } + + break; + } + + return 0; +} + +/* Called from main context */ +static void fix_playback_buffer_attr(playback_stream *s) { + size_t frame_size, max_prebuf; + pa_usec_t orig_tlength_usec, tlength_usec, orig_minreq_usec, minreq_usec, sink_usec; + + pa_assert(s); + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("Client requested: maxlength=%li bytes tlength=%li bytes minreq=%li bytes prebuf=%li bytes", + (long) s->buffer_attr_req.maxlength, + (long) s->buffer_attr_req.tlength, + (long) s->buffer_attr_req.minreq, + (long) s->buffer_attr_req.prebuf); + + pa_log("Client requested: maxlength=%lu ms tlength=%lu ms minreq=%lu ms prebuf=%lu ms", + (unsigned long) (pa_bytes_to_usec(s->buffer_attr_req.maxlength, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC), + (unsigned long) (pa_bytes_to_usec(s->buffer_attr_req.tlength, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC), + (unsigned long) (pa_bytes_to_usec(s->buffer_attr_req.minreq, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC), + (unsigned long) (pa_bytes_to_usec(s->buffer_attr_req.prebuf, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC)); +#endif + + /* This function will be called from the main thread, before as + * well as after the sink input has been activated using + * pa_sink_input_put()! That means it may not touch any + * ->thread_info data, such as the memblockq! */ + + frame_size = pa_frame_size(&s->sink_input->sample_spec); + s->buffer_attr = s->buffer_attr_req; + + if (s->buffer_attr.maxlength == (uint32_t) -1 || s->buffer_attr.maxlength > MAX_MEMBLOCKQ_LENGTH) + s->buffer_attr.maxlength = MAX_MEMBLOCKQ_LENGTH; + if (s->buffer_attr.maxlength <= 0) + s->buffer_attr.maxlength = (uint32_t) frame_size; + + if (s->buffer_attr.tlength == (uint32_t) -1) + s->buffer_attr.tlength = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_TLENGTH_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec); + if (s->buffer_attr.tlength <= 0) + s->buffer_attr.tlength = (uint32_t) frame_size; + if (s->buffer_attr.tlength > s->buffer_attr.maxlength) + s->buffer_attr.tlength = s->buffer_attr.maxlength; + + if (s->buffer_attr.minreq == (uint32_t) -1) { + uint32_t process = (uint32_t) pa_usec_to_bytes_round_up(DEFAULT_PROCESS_MSEC*PA_USEC_PER_MSEC, &s->sink_input->sample_spec); + /* With low-latency, tlength/4 gives a decent default in all of traditional, adjust latency and early request modes. */ + uint32_t m = s->buffer_attr.tlength / 4; + if (frame_size) + m -= m % frame_size; + s->buffer_attr.minreq = PA_MIN(process, m); + } + if (s->buffer_attr.minreq <= 0) + s->buffer_attr.minreq = (uint32_t) frame_size; + + if (s->buffer_attr.tlength < s->buffer_attr.minreq+frame_size) + s->buffer_attr.tlength = s->buffer_attr.minreq+(uint32_t) frame_size; + + orig_tlength_usec = tlength_usec = pa_bytes_to_usec(s->buffer_attr.tlength, &s->sink_input->sample_spec); + orig_minreq_usec = minreq_usec = pa_bytes_to_usec(s->buffer_attr.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 (s->early_requests) { + + /* In early request mode we need to emulate the classic + * fragment-based playback model. Unfortunately we have no + * mechanism to tell the sink how often we want to be queried + * for data. The next best thing we can do is to set the sink's + * total buffer (i.e. its latency) to the fragment size. That + * way it will have to query us at least that often. */ + + sink_usec = minreq_usec; + pa_log_debug("Early requests mode enabled, configuring sink latency to minreq."); + + } else if (s->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 completely + * empty and needs to be filled, then our buffer must have + * enough data to fulfill this request immediately and thus + * have at least the same tlength as the size of the hw + * buffer. It additionally needs space for 2 times minreq + * because if the buffer ran empty and a partial fillup + * happens immediately on the next iteration we need to be + * able to fulfill it and give the application also minreq + * time to fill it up again for the next request Makes 2 times + * minreq in plus.. */ + + if (tlength_usec > minreq_usec*2) + sink_usec = (tlength_usec - minreq_usec*2)/2; + else + sink_usec = 0; + + pa_log_debug("Adjust latency mode enabled, configuring sink latency to half of overall latency."); + + } else { + + /* Ok, the user didn't ask us to adjust the latency, but we + * still need to make sure that the parameters from the user + * do make sense. */ + + if (tlength_usec > minreq_usec*2) + sink_usec = (tlength_usec - minreq_usec*2); + else + sink_usec = 0; + + pa_log_debug("Traditional mode enabled, modifying sink usec only for compat with minreq."); + } + + s->configured_sink_latency = pa_sink_input_set_requested_latency(s->sink_input, sink_usec); + + if (s->early_requests) { + + /* Ok, we didn't necessarily get what we were asking for. We + * might still get the proper fragment interval, we just can't + * guarantee it. */ + + if (minreq_usec != s->configured_sink_latency) + pa_log_debug("Could not configure a sufficiently low latency. Early requests might not be satisfied."); + + } else if (s->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->configured_sink_latency) + tlength_usec -= s->configured_sink_latency; + } + + pa_log_debug("Requested latency=%0.2f ms, Received latency=%0.2f ms", + (double) sink_usec / PA_USEC_PER_MSEC, + (double) s->configured_sink_latency / PA_USEC_PER_MSEC); + + /* FIXME: This is actually larger than necessary, since not all of + * the sink latency is actually rewritable. */ + if (tlength_usec < s->configured_sink_latency + 2*minreq_usec) + tlength_usec = s->configured_sink_latency + 2*minreq_usec; + + if (pa_usec_to_bytes_round_up(orig_tlength_usec, &s->sink_input->sample_spec) != + pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec)) + s->buffer_attr.tlength = (uint32_t) pa_usec_to_bytes_round_up(tlength_usec, &s->sink_input->sample_spec); + + if (pa_usec_to_bytes(orig_minreq_usec, &s->sink_input->sample_spec) != + pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec)) + s->buffer_attr.minreq = (uint32_t) pa_usec_to_bytes(minreq_usec, &s->sink_input->sample_spec); + + if (s->buffer_attr.minreq <= 0) { + s->buffer_attr.minreq = (uint32_t) frame_size; + s->buffer_attr.tlength += (uint32_t) frame_size*2; + } + + if (s->buffer_attr.tlength <= s->buffer_attr.minreq) + s->buffer_attr.tlength = s->buffer_attr.minreq*2 + (uint32_t) frame_size; + + max_prebuf = s->buffer_attr.tlength + (uint32_t)frame_size - s->buffer_attr.minreq; + + if (s->buffer_attr.prebuf == (uint32_t) -1 || + s->buffer_attr.prebuf > max_prebuf) + s->buffer_attr.prebuf = max_prebuf; + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("Client accepted: maxlength=%lu ms tlength=%lu ms minreq=%lu ms prebuf=%lu ms", + (unsigned long) (pa_bytes_to_usec(s->buffer_attr.maxlength, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC), + (unsigned long) (pa_bytes_to_usec(s->buffer_attr.tlength, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC), + (unsigned long) (pa_bytes_to_usec(s->buffer_attr.minreq, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC), + (unsigned long) (pa_bytes_to_usec(s->buffer_attr.prebuf, &s->sink_input->sample_spec) / PA_USEC_PER_MSEC)); +#endif +} + +/* Called from main context */ +static playback_stream* playback_stream_new( + pa_native_connection *c, + pa_sink *sink, + pa_sample_spec *ss, + pa_channel_map *map, + pa_idxset *formats, + pa_buffer_attr *a, + pa_cvolume *volume, + bool muted, + bool muted_set, + pa_sink_input_flags_t flags, + pa_proplist *p, + bool adjust_latency, + bool early_requests, + bool relative_volume, + uint32_t syncid, + uint32_t *missing, + int *ret) { + + /* Note: This function takes ownership of the 'formats' param, so we need + * to take extra care to not leak it */ + + playback_stream *ssync; + playback_stream *s = NULL; + pa_sink_input *sink_input = NULL; + pa_memchunk silence; + uint32_t idx; + int64_t start_index; + pa_sink_input_new_data data; + char *memblockq_name; + + pa_assert(c); + pa_assert(ss); + pa_assert(missing); + pa_assert(p); + pa_assert(ret); + + /* Find syncid group */ + PA_IDXSET_FOREACH(ssync, 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) { + *ret = PA_ERR_INVALID; + goto out; + } + } + + pa_sink_input_new_data_init(&data); + + pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p); + data.driver = __FILE__; + data.module = c->options->module; + data.client = c->client; + if (sink) + pa_sink_input_new_data_set_sink(&data, sink, false, true); + if (pa_sample_spec_valid(ss)) + pa_sink_input_new_data_set_sample_spec(&data, ss); + if (pa_channel_map_valid(map)) + pa_sink_input_new_data_set_channel_map(&data, map); + if (formats) { + pa_sink_input_new_data_set_formats(&data, formats); + /* Ownership transferred to new_data, so we don't free it ourselves */ + formats = NULL; + } + if (volume) { + pa_sink_input_new_data_set_volume(&data, volume); + data.volume_is_absolute = !relative_volume; + data.save_volume = false; + } + if (muted_set) { + pa_sink_input_new_data_set_muted(&data, muted); + data.save_muted = false; + } + data.sync_base = ssync ? ssync->sink_input : NULL; + data.flags = flags; + + *ret = -pa_sink_input_new(&sink_input, c->protocol->core, &data); + + pa_sink_input_new_data_done(&data); + + if (!sink_input) + goto out; + + s = pa_msgobject_new(playback_stream); + s->parent.parent.parent.free = playback_stream_free; + s->parent.parent.process_msg = playback_stream_process_msg; + s->connection = c; + s->syncid = syncid; + s->sink_input = sink_input; + s->is_underrun = true; + s->drain_request = false; + pa_atomic_store(&s->missing, 0); + s->buffer_attr_req = *a; + s->adjust_latency = adjust_latency; + s->early_requests = early_requests; + pa_atomic_store(&s->seek_or_post_in_queue, 0); + s->seek_windex = -1; + + s->sink_input->parent.process_msg = sink_input_process_msg; + s->sink_input->pop = sink_input_pop_cb; + s->sink_input->process_underrun = sink_input_process_underrun_cb; + s->sink_input->process_rewind = sink_input_process_rewind_cb; + s->sink_input->update_max_rewind = sink_input_update_max_rewind_cb; + s->sink_input->update_max_request = sink_input_update_max_request_cb; + s->sink_input->kill = sink_input_kill_cb; + s->sink_input->moving = sink_input_moving_cb; + s->sink_input->suspend = sink_input_suspend_cb; + s->sink_input->send_event = sink_input_send_event_cb; + s->sink_input->userdata = s; + + start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 0; + + fix_playback_buffer_attr(s); + + pa_sink_input_get_silence(sink_input, &silence); + memblockq_name = pa_sprintf_malloc("native protocol playback stream memblockq [%u]", s->sink_input->index); + s->memblockq = pa_memblockq_new( + memblockq_name, + start_index, + s->buffer_attr.maxlength, + s->buffer_attr.tlength, + &sink_input->sample_spec, + s->buffer_attr.prebuf, + s->buffer_attr.minreq, + 0, + &silence); + pa_xfree(memblockq_name); + pa_memblock_unref(silence.memblock); + + pa_memblockq_get_attr(s->memblockq, &s->buffer_attr); + + *missing = (uint32_t) pa_memblockq_pop_missing(s->memblockq); + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("missing original: %li", (long int) *missing); +#endif + + *ss = s->sink_input->sample_spec; + *map = s->sink_input->channel_map; + + pa_idxset_put(c->output_streams, s, &s->index); + + pa_log_info("Final latency %0.2f ms = %0.2f ms + 2*%0.2f ms + %0.2f ms", + ((double) pa_bytes_to_usec(s->buffer_attr.tlength, &sink_input->sample_spec) + (double) s->configured_sink_latency) / PA_USEC_PER_MSEC, + (double) pa_bytes_to_usec(s->buffer_attr.tlength-s->buffer_attr.minreq*2, &sink_input->sample_spec) / PA_USEC_PER_MSEC, + (double) pa_bytes_to_usec(s->buffer_attr.minreq, &sink_input->sample_spec) / PA_USEC_PER_MSEC, + (double) s->configured_sink_latency / PA_USEC_PER_MSEC); + + pa_sink_input_put(s->sink_input); + +out: + if (formats) + pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free); + + return s; +} + +/* Called from IO context */ +static void playback_stream_request_bytes(playback_stream *s) { + size_t m; + + playback_stream_assert_ref(s); + + m = pa_memblockq_pop_missing(s->memblockq); + + /* pa_log("request_bytes(%lu) (tlength=%lu minreq=%lu length=%lu really missing=%lli)", */ + /* (unsigned long) m, */ + /* pa_memblockq_get_tlength(s->memblockq), */ + /* pa_memblockq_get_minreq(s->memblockq), */ + /* pa_memblockq_get_length(s->memblockq), */ + /* (long long) pa_memblockq_get_tlength(s->memblockq) - (long long) pa_memblockq_get_length(s->memblockq)); */ + + if (m <= 0) + return; + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("request_bytes(%lu)", (unsigned long) m); +#endif + + if (pa_atomic_add(&s->missing, (int) m) <= 0) + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL); +} + +/* Called from main context */ +static void playback_stream_send_killed(playback_stream *p) { + pa_tagstruct *t; + playback_stream_assert_ref(p); + + t = pa_tagstruct_new(); + 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); +} + +/* Called from main context */ +static int native_connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) { + pa_native_connection *c = PA_NATIVE_CONNECTION(o); + pa_native_connection_assert_ref(c); + + if (!c->protocol) + return -1; + + switch (code) { + + case CONNECTION_MESSAGE_REVOKE: + pa_pstream_send_revoke(c->pstream, PA_PTR_TO_UINT(userdata)); + break; + + case CONNECTION_MESSAGE_RELEASE: + pa_pstream_send_release(c->pstream, PA_PTR_TO_UINT(userdata)); + break; + } + + return 0; +} + +/* Called from main context */ +static void native_connection_unlink(pa_native_connection *c) { + record_stream *r; + output_stream *o; + + pa_assert(c); + + if (!c->protocol) + return; + + pa_hook_fire(&c->protocol->hooks[PA_NATIVE_HOOK_CONNECTION_UNLINK], c); + + if (c->options) + pa_native_options_unref(c->options); + + if (c->srbpending) + pa_srbchannel_free(c->srbpending); + + while ((r = pa_idxset_first(c->record_streams, NULL))) + record_stream_unlink(r); + + while ((o = pa_idxset_first(c->output_streams, NULL))) + if (playback_stream_isinstance(o)) + playback_stream_unlink(PLAYBACK_STREAM(o)); + else + upload_stream_unlink(UPLOAD_STREAM(o)); + + if (c->subscription) + pa_subscription_free(c->subscription); + + if (c->pstream) + pa_pstream_unlink(c->pstream); + + if (c->auth_timeout_event) { + c->protocol->core->mainloop->time_free(c->auth_timeout_event); + c->auth_timeout_event = NULL; + } + + pa_assert_se(pa_idxset_remove_by_data(c->protocol->connections, c, NULL) == c); + c->protocol = NULL; + pa_native_connection_unref(c); +} + +/* Called from main context */ +static void native_connection_free(pa_object *o) { + pa_native_connection *c = PA_NATIVE_CONNECTION(o); + + pa_assert(c); + + native_connection_unlink(c); + + pa_idxset_free(c->record_streams, NULL); + pa_idxset_free(c->output_streams, NULL); + + pa_pdispatch_unref(c->pdispatch); + pa_pstream_unref(c->pstream); + if (c->rw_mempool) + pa_mempool_unref(c->rw_mempool); + + pa_client_free(c->client); + + pa_xfree(c); +} + +/* Called from main context */ +static void native_connection_send_memblock(pa_native_connection *c) { + uint32_t start; + record_stream *r; + + start = PA_IDXSET_INVALID; + for (;;) { + pa_memchunk chunk; + + if (!(r = RECORD_STREAM(pa_idxset_rrobin(c->record_streams, &c->rrobin_index)))) + return; + + if (start == PA_IDXSET_INVALID) + start = c->rrobin_index; + else if (start == c->rrobin_index) + return; + + if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) { + pa_memchunk schunk = chunk; + + if (schunk.length > r->buffer_attr.fragsize) + schunk.length = r->buffer_attr.fragsize; + + pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk); + + pa_memblockq_drop(r->memblockq, schunk.length); + pa_memblock_unref(schunk.memblock); + + return; + } + } +} + +/*** sink input callbacks ***/ + +/* Called from thread context */ +static void handle_seek(playback_stream *s, int64_t indexw) { + playback_stream_assert_ref(s); + +/* pa_log("handle_seek: %llu -- %i", (unsigned long long) s->sink_input->thread_info.underrun_for, pa_memblockq_is_readable(s->memblockq)); */ + + if (s->sink_input->thread_info.underrun_for > 0) { + +/* pa_log("%lu vs. %lu", (unsigned long) pa_memblockq_get_length(s->memblockq), (unsigned long) pa_memblockq_get_prebuf(s->memblockq)); */ + + if (pa_memblockq_is_readable(s->memblockq)) { + + /* We just ended an underrun, let's ask the sink + * for a complete rewind rewrite */ + + pa_log_debug("Requesting rewind due to end of underrun."); + pa_sink_input_request_rewind(s->sink_input, + (size_t) (s->sink_input->thread_info.underrun_for == (uint64_t) -1 ? 0 : + s->sink_input->thread_info.underrun_for), + false, true, false); + } + + } 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 ask us again */ + + pa_log_debug("Requesting rewind due to rewrite."); + pa_sink_input_request_rewind(s->sink_input, (size_t) (indexr - indexw), true, false, false); + } + } + + playback_stream_request_bytes(s); +} + +static void flush_write_no_account(pa_memblockq *q) { + pa_memblockq_flush_write(q, false); +} + +/* 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: + case SINK_INPUT_MESSAGE_POST_DATA: { + int64_t windex = pa_memblockq_get_write_index(s->memblockq); + + if (code == SINK_INPUT_MESSAGE_SEEK) { + /* The client side is incapable of accounting correctly + * for seeks of a type != PA_SEEK_RELATIVE. We need to be + * able to deal with that. */ + + pa_memblockq_seek(s->memblockq, offset, PA_PTR_TO_UINT(userdata), PA_PTR_TO_UINT(userdata) == PA_SEEK_RELATIVE); + windex = PA_MIN(windex, pa_memblockq_get_write_index(s->memblockq)); + } + + if (chunk && pa_memblockq_push_align(s->memblockq, chunk) < 0) { + if (pa_log_ratelimit(PA_LOG_WARN)) + pa_log_warn("Failed to push data into queue"); + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_OVERFLOW, NULL, 0, NULL, NULL); + pa_memblockq_seek(s->memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, true); + } + + /* If more data is in queue, we rewind later instead. */ + if (s->seek_windex != -1) + windex = PA_MIN(windex, s->seek_windex); + if (pa_atomic_dec(&s->seek_or_post_in_queue) > 1) + s->seek_windex = windex; + else { + s->seek_windex = -1; + handle_seek(s, windex); + } + 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 = flush_write_no_account; + 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: + /* Atomically get a snapshot of all timing parameters... */ + 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); + s->current_sink_latency = pa_sink_get_latency_within_thread(s->sink_input->sink, false); + s->underrun_for = s->sink_input->thread_info.underrun_for; + s->playing_for = s->sink_input->thread_info.playing_for; + + return 0; + + case PA_SINK_INPUT_MESSAGE_SET_STATE: { + int64_t windex; + + windex = pa_memblockq_get_write_index(s->memblockq); + + /* We enable prebuffering so that after CORKED -> RUNNING + * transitions we don't have trouble with underruns in case the + * buffer has too little data. This must not be done when draining + * has been requested, however, otherwise the buffered audio would + * never play. */ + if (!s->drain_request) + 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; + } + + case SINK_INPUT_MESSAGE_UPDATE_BUFFER_ATTR: { + pa_memblockq_apply_attr(s->memblockq, &s->buffer_attr); + pa_memblockq_get_attr(s->memblockq, &s->buffer_attr); + return 0; + } + } + + return pa_sink_input_process_msg(o, code, userdata, offset, chunk); +} + +static bool handle_input_underrun(playback_stream *s, bool force) { + bool send_drain; + + if (pa_memblockq_is_readable(s->memblockq)) + return false; + + if (!s->is_underrun) + pa_log_debug("%s %s of '%s'", force ? "Actual" : "Implicit", + s->drain_request ? "drain" : "underrun", pa_strnull(pa_proplist_gets(s->sink_input->proplist, PA_PROP_MEDIA_NAME))); + + send_drain = s->drain_request && (force || pa_sink_input_safe_to_remove(s->sink_input)); + + if (send_drain) { + 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); + pa_log_debug("Drain acknowledged of '%s'", pa_strnull(pa_proplist_gets(s->sink_input->proplist, PA_PROP_MEDIA_NAME))); + } else if (!s->is_underrun) { + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UNDERFLOW, NULL, pa_memblockq_get_read_index(s->memblockq), NULL, NULL); + } + s->is_underrun = true; + playback_stream_request_bytes(s); + return true; +} + +/* Called from thread context */ +static bool sink_input_process_underrun_cb(pa_sink_input *i) { + playback_stream *s; + + pa_sink_input_assert_ref(i); + s = PLAYBACK_STREAM(i->userdata); + playback_stream_assert_ref(s); + + return handle_input_underrun(s, true); +} + +/* 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); + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("%s, pop(): %lu", pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME), (unsigned long) pa_memblockq_get_length(s->memblockq)); +#endif + + if (!handle_input_underrun(s, false)) + s->is_underrun = false; + + /* This call will not fail with prebuf=0, hence we check for + underrun explicitly in handle_input_underrun */ + if (pa_memblockq_peek(s->memblockq, chunk) < 0) + return -1; + + chunk->length = PA_MIN(nbytes, chunk->length); + + if (i->thread_info.underrun_for > 0) + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_STARTED, NULL, 0, NULL, NULL); + + pa_memblockq_drop(s->memblockq, chunk->length); + playback_stream_request_bytes(s); + + return 0; +} + +/* Called from thread context */ +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); +} + +/* Called from thread context */ +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 thread context */ +static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) { + playback_stream *s; + size_t new_tlength, old_tlength; + + pa_sink_input_assert_ref(i); + s = PLAYBACK_STREAM(i->userdata); + playback_stream_assert_ref(s); + + old_tlength = pa_memblockq_get_tlength(s->memblockq); + new_tlength = nbytes+2*pa_memblockq_get_minreq(s->memblockq); + + if (old_tlength < new_tlength) { + pa_log_debug("max_request changed, trying to update from %zu to %zu.", old_tlength, new_tlength); + pa_memblockq_set_tlength(s->memblockq, new_tlength); + new_tlength = pa_memblockq_get_tlength(s->memblockq); + + if (new_tlength == old_tlength) + pa_log_debug("Failed to increase tlength"); + else { + pa_log_debug("Notifying client about increased tlength"); + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PLAYBACK_STREAM_MESSAGE_UPDATE_TLENGTH, NULL, pa_memblockq_get_tlength(s->memblockq), NULL, NULL); + } + } +} + +/* Called from main context */ +static void sink_input_kill_cb(pa_sink_input *i) { + playback_stream *s; + + pa_sink_input_assert_ref(i); + s = PLAYBACK_STREAM(i->userdata); + playback_stream_assert_ref(s); + + playback_stream_send_killed(s); + playback_stream_unlink(s); +} + +/* Called from main context */ +static void sink_input_send_event_cb(pa_sink_input *i, const char *event, pa_proplist *pl) { + 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 < 15) + return; + + t = pa_tagstruct_new(); + pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_EVENT); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, s->index); + pa_tagstruct_puts(t, event); + pa_tagstruct_put_proplist(t, pl); + pa_pstream_send_tagstruct(s->connection->pstream, t); +} + +/* Called from main context */ +static void sink_input_suspend_cb(pa_sink_input *i, pa_sink_state_t old_state, pa_suspend_cause_t old_suspend_cause) { + playback_stream *s; + pa_tagstruct *t; + bool suspend; + + pa_sink_input_assert_ref(i); + + /* State has not changed, nothing to do */ + if (old_state == i->sink->state) + return; + + suspend = (i->sink->state == PA_SINK_SUSPENDED); + + s = PLAYBACK_STREAM(i->userdata); + playback_stream_assert_ref(s); + + if (s->connection->version < 12) + return; + + t = pa_tagstruct_new(); + 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_moving_cb(pa_sink_input *i, pa_sink *dest) { + playback_stream *s; + pa_tagstruct *t; + + pa_sink_input_assert_ref(i); + s = PLAYBACK_STREAM(i->userdata); + playback_stream_assert_ref(s); + + if (!dest) + return; + + fix_playback_buffer_attr(s); + pa_memblockq_apply_attr(s->memblockq, &s->buffer_attr); + pa_memblockq_get_attr(s->memblockq, &s->buffer_attr); + + if (s->connection->version < 12) + return; + + t = pa_tagstruct_new(); + 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, dest->index); + pa_tagstruct_puts(t, dest->name); + pa_tagstruct_put_boolean(t, dest->state == PA_SINK_SUSPENDED); + + if (s->connection->version >= 13) { + pa_tagstruct_putu32(t, s->buffer_attr.maxlength); + pa_tagstruct_putu32(t, s->buffer_attr.tlength); + pa_tagstruct_putu32(t, s->buffer_attr.prebuf); + pa_tagstruct_putu32(t, s->buffer_attr.minreq); + pa_tagstruct_put_usec(t, s->configured_sink_latency); + } + + pa_pstream_send_tagstruct(s->connection->pstream, t); +} + +/*** source_output callbacks ***/ + +/* Called from thread context */ +static int source_output_process_msg(pa_msgobject *_o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) { + pa_source_output *o = PA_SOURCE_OUTPUT(_o); + record_stream *s; + + pa_source_output_assert_ref(o); + s = RECORD_STREAM(o->userdata); + record_stream_assert_ref(s); + + switch (code) { + case SOURCE_OUTPUT_MESSAGE_UPDATE_LATENCY: + /* Atomically get a snapshot of all timing parameters... */ + s->current_monitor_latency = o->source->monitor_of ? pa_sink_get_latency_within_thread(o->source->monitor_of, false) : 0; + s->current_source_latency = pa_source_get_latency_within_thread(o->source, false); + s->on_the_fly_snapshot = pa_atomic_load(&s->on_the_fly); + return 0; + } + + return pa_source_output_process_msg(_o, code, userdata, offset, chunk); +} + +/* 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_atomic_add(&s->on_the_fly, chunk->length); + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), RECORD_STREAM_MESSAGE_POST_DATA, NULL, 0, chunk, NULL); +} + +static void source_output_kill_cb(pa_source_output *o) { + record_stream *s; + + pa_source_output_assert_ref(o); + s = RECORD_STREAM(o->userdata); + record_stream_assert_ref(s); + + record_stream_send_killed(s); + record_stream_unlink(s); +} + +static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { + record_stream *s; + + pa_source_output_assert_ref(o); + s = RECORD_STREAM(o->userdata); + record_stream_assert_ref(s); + + /*pa_log("get_latency: %u", pa_memblockq_get_length(s->memblockq));*/ + + return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec); +} + +/* Called from main context */ +static void source_output_send_event_cb(pa_source_output *o, const char *event, pa_proplist *pl) { + 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 < 15) + return; + + t = pa_tagstruct_new(); + pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_EVENT); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, s->index); + pa_tagstruct_puts(t, event); + pa_tagstruct_put_proplist(t, pl); + pa_pstream_send_tagstruct(s->connection->pstream, t); +} + +/* Called from main context */ +static void source_output_suspend_cb(pa_source_output *o, pa_source_state_t old_state, pa_suspend_cause_t old_suspend_cause) { + record_stream *s; + pa_tagstruct *t; + bool suspend; + + pa_source_output_assert_ref(o); + + /* State has not changed, nothing to do */ + if (old_state == o->source->state) + return; + + suspend = (o->source->state == PA_SOURCE_SUSPENDED); + + s = RECORD_STREAM(o->userdata); + record_stream_assert_ref(s); + + if (s->connection->version < 12) + return; + + t = pa_tagstruct_new(); + 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_moving_cb(pa_source_output *o, pa_source *dest) { + record_stream *s; + pa_tagstruct *t; + + pa_source_output_assert_ref(o); + s = RECORD_STREAM(o->userdata); + record_stream_assert_ref(s); + + if (!dest) + return; + + fix_record_buffer_attr_pre(s); + pa_memblockq_set_maxlength(s->memblockq, s->buffer_attr.maxlength); + pa_memblockq_get_attr(s->memblockq, &s->buffer_attr); + fix_record_buffer_attr_post(s); + + if (s->connection->version < 12) + return; + + t = pa_tagstruct_new(); + 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, dest->index); + pa_tagstruct_puts(t, dest->name); + pa_tagstruct_put_boolean(t, dest->state == PA_SOURCE_SUSPENDED); + + if (s->connection->version >= 13) { + pa_tagstruct_putu32(t, s->buffer_attr.maxlength); + pa_tagstruct_putu32(t, s->buffer_attr.fragsize); + pa_tagstruct_put_usec(t, s->configured_source_latency); + } + + pa_pstream_send_tagstruct(s->connection->pstream, t); +} + +/*** pdispatch callbacks ***/ + +static void protocol_error(pa_native_connection *c) { + pa_log("protocol error, kicking client"); + native_connection_unlink(c); +} + +#define CHECK_VALIDITY(pstream, expression, tag, error) do { \ +if (!(expression)) { \ + pa_pstream_send_error((pstream), (tag), (error)); \ + return; \ +} \ +} while(0); + +#define CHECK_VALIDITY_GOTO(pstream, expression, tag, error, label) do { \ +if (!(expression)) { \ + pa_pstream_send_error((pstream), (tag), (error)); \ + goto label; \ +} \ +} while(0); + +static pa_tagstruct *reply_new(uint32_t tag) { + pa_tagstruct *reply; + + reply = pa_tagstruct_new(); + pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); + pa_tagstruct_putu32(reply, tag); + return reply; +} + +static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + playback_stream *s; + uint32_t sink_index, syncid, missing = 0; + pa_buffer_attr attr; + const char *name = NULL, *sink_name; + pa_sample_spec ss; + pa_channel_map map; + pa_tagstruct *reply; + pa_sink *sink = NULL; + pa_cvolume volume; + bool + corked = false, + no_remap = false, + no_remix = false, + fix_format = false, + fix_rate = false, + fix_channels = false, + no_move = false, + variable_rate = false, + muted = false, + adjust_latency = false, + early_requests = false, + dont_inhibit_auto_suspend = false, + volume_set = true, + muted_set = false, + fail_on_suspend = false, + relative_volume = false, + passthrough = false; + + pa_sink_input_flags_t flags = 0; + pa_proplist *p = NULL; + int ret = PA_ERR_INVALID; + uint8_t n_formats = 0; + pa_format_info *format; + pa_idxset *formats = NULL; + uint32_t i; + + pa_native_connection_assert_ref(c); + pa_assert(t); + memset(&attr, 0, sizeof(attr)); + + 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, &attr.maxlength, + PA_TAG_BOOLEAN, &corked, + PA_TAG_U32, &attr.tlength, + PA_TAG_U32, &attr.prebuf, + PA_TAG_U32, &attr.minreq, + PA_TAG_U32, &syncid, + PA_TAG_CVOLUME, &volume, + PA_TAG_INVALID) < 0) { + + protocol_error(c); + goto finish; + } + + CHECK_VALIDITY_GOTO(c->pstream, c->authorized, tag, PA_ERR_ACCESS, finish); + CHECK_VALIDITY_GOTO(c->pstream, !sink_name || pa_namereg_is_valid_name_or_wildcard(sink_name, PA_NAMEREG_SINK), tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID, finish); + + 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); + goto finish; + } + } + + 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); + goto finish; + } + } + + if (c->version >= 14) { + + if (pa_tagstruct_get_boolean(t, &volume_set) < 0 || + pa_tagstruct_get_boolean(t, &early_requests) < 0) { + + protocol_error(c); + goto finish; + } + } + + if (c->version >= 15) { + + if (pa_tagstruct_get_boolean(t, &muted_set) < 0 || + pa_tagstruct_get_boolean(t, &dont_inhibit_auto_suspend) < 0 || + pa_tagstruct_get_boolean(t, &fail_on_suspend) < 0) { + + protocol_error(c); + goto finish; + } + } + + if (c->version >= 17) { + + if (pa_tagstruct_get_boolean(t, &relative_volume) < 0) { + + protocol_error(c); + goto finish; + } + } + + if (c->version >= 18) { + + if (pa_tagstruct_get_boolean(t, &passthrough) < 0 ) { + protocol_error(c); + goto finish; + } + } + + if (c->version >= 21) { + + if (pa_tagstruct_getu8(t, &n_formats) < 0) { + protocol_error(c); + goto finish; + } + + if (n_formats) + formats = pa_idxset_new(NULL, NULL); + + for (i = 0; i < n_formats; i++) { + format = pa_format_info_new(); + if (pa_tagstruct_get_format_info(t, format) < 0) { + protocol_error(c); + goto finish; + } + pa_idxset_put(formats, format, NULL); + } + } + + if (n_formats == 0) { + CHECK_VALIDITY_GOTO(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID, finish); + } else { + PA_IDXSET_FOREACH(format, formats, i) { + CHECK_VALIDITY_GOTO(c->pstream, pa_format_info_valid(format), tag, PA_ERR_INVALID, finish); + } + } + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + goto finish; + } + + 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); + goto finish; + } + + } else if (sink_name) { + + if (!(sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK))) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + goto finish; + } + } + + 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) | + (dont_inhibit_auto_suspend ? PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND : 0) | + (fail_on_suspend ? PA_SINK_INPUT_NO_CREATE_ON_SUSPEND|PA_SINK_INPUT_KILL_ON_SUSPEND : 0) | + (passthrough ? PA_SINK_INPUT_PASSTHROUGH : 0); + + /* Only since protocol version 15 there's a separate muted_set + * flag. For older versions we synthesize it here */ + muted_set = muted_set || muted; + + s = playback_stream_new(c, sink, &ss, &map, formats, &attr, volume_set ? &volume : NULL, muted, muted_set, flags, p, adjust_latency, early_requests, relative_volume, syncid, &missing, &ret); + /* We no longer own the formats idxset */ + formats = NULL; + + CHECK_VALIDITY_GOTO(c->pstream, s, tag, ret, finish); + + 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); + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("initial request is %u", missing); +#endif + + if (c->version >= 9) { + /* Since 0.9.0 we support sending the buffer metrics back to the client */ + + pa_tagstruct_putu32(reply, (uint32_t) s->buffer_attr.maxlength); + pa_tagstruct_putu32(reply, (uint32_t) s->buffer_attr.tlength); + pa_tagstruct_putu32(reply, (uint32_t) s->buffer_attr.prebuf); + pa_tagstruct_putu32(reply, (uint32_t) s->buffer_attr.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, s->sink_input->sink->state == PA_SINK_SUSPENDED); + } + + if (c->version >= 13) + pa_tagstruct_put_usec(reply, s->configured_sink_latency); + + if (c->version >= 21) { + /* Send back the format we negotiated */ + if (s->sink_input->format) + pa_tagstruct_put_format_info(reply, s->sink_input->format); + else { + pa_format_info *f = pa_format_info_new(); + pa_tagstruct_put_format_info(reply, f); + pa_format_info_free(f); + } + } + + pa_pstream_send_tagstruct(c->pstream, reply); + +finish: + if (p) + pa_proplist_free(p); + if (formats) + pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free); +} + +static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t channel; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + switch (command) { + + case PA_COMMAND_DELETE_PLAYBACK_STREAM: { + playback_stream *s; + if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || !playback_stream_isinstance(s)) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + 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_NOENTITY); + 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_NOENTITY); + return; + } + + upload_stream_unlink(s); + break; + } + + default: + pa_assert_not_reached(); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + record_stream *s; + pa_buffer_attr attr; + 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_cvolume volume; + bool + 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, + peak_detect = false, + early_requests = false, + dont_inhibit_auto_suspend = false, + volume_set = false, + muted_set = false, + fail_on_suspend = false, + relative_volume = false, + passthrough = false; + + pa_source_output_flags_t flags = 0; + pa_proplist *p = NULL; + uint32_t direct_on_input_idx = PA_INVALID_INDEX; + pa_sink_input *direct_on_input = NULL; + int ret = PA_ERR_INVALID; + uint8_t n_formats = 0; + pa_format_info *format; + pa_idxset *formats = NULL; + uint32_t i; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + memset(&attr, 0, sizeof(attr)); + + 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, &attr.maxlength) < 0 || + pa_tagstruct_get_boolean(t, &corked) < 0 || + pa_tagstruct_getu32(t, &attr.fragsize) < 0) { + + protocol_error(c); + goto finish; + } + + CHECK_VALIDITY_GOTO(c->pstream, c->authorized, tag, PA_ERR_ACCESS, finish); + CHECK_VALIDITY_GOTO(c->pstream, !source_name || pa_namereg_is_valid_name_or_wildcard(source_name, PA_NAMEREG_SOURCE), tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, source_index == PA_INVALID_INDEX || !source_name, tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, !source_name || source_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID, finish); + + 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); + goto finish; + } + } + + 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); + goto finish; + } + } + + if (c->version >= 14) { + + if (pa_tagstruct_get_boolean(t, &early_requests) < 0) { + protocol_error(c); + goto finish; + } + } + + if (c->version >= 15) { + + if (pa_tagstruct_get_boolean(t, &dont_inhibit_auto_suspend) < 0 || + pa_tagstruct_get_boolean(t, &fail_on_suspend) < 0) { + + protocol_error(c); + goto finish; + } + } + + if (c->version >= 22) { + /* For newer client versions (with per-source-output volumes), we try + * to make the behaviour for playback and record streams the same. */ + volume_set = true; + + if (pa_tagstruct_getu8(t, &n_formats) < 0) { + protocol_error(c); + goto finish; + } + + if (n_formats) + formats = pa_idxset_new(NULL, NULL); + + for (i = 0; i < n_formats; i++) { + format = pa_format_info_new(); + if (pa_tagstruct_get_format_info(t, format) < 0) { + protocol_error(c); + goto finish; + } + pa_idxset_put(formats, format, NULL); + } + + if (pa_tagstruct_get_cvolume(t, &volume) < 0 || + pa_tagstruct_get_boolean(t, &muted) < 0 || + pa_tagstruct_get_boolean(t, &volume_set) < 0 || + pa_tagstruct_get_boolean(t, &muted_set) < 0 || + pa_tagstruct_get_boolean(t, &relative_volume) < 0 || + pa_tagstruct_get_boolean(t, &passthrough) < 0) { + + protocol_error(c); + goto finish; + } + + CHECK_VALIDITY_GOTO(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID, finish); + } + + if (n_formats == 0) { + CHECK_VALIDITY_GOTO(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, c->version < 22 || (volume.channels == ss.channels), tag, PA_ERR_INVALID, finish); + CHECK_VALIDITY_GOTO(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID, finish); + } else { + PA_IDXSET_FOREACH(format, formats, i) { + CHECK_VALIDITY_GOTO(c->pstream, pa_format_info_valid(format), tag, PA_ERR_INVALID, finish); + } + } + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + goto finish; + } + + 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); + goto finish; + } + + } else if (source_name) { + + if (!(source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE))) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + goto finish; + } + } + + 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); + goto finish; + } + } + + 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) | + (dont_inhibit_auto_suspend ? PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND : 0) | + (fail_on_suspend ? PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND|PA_SOURCE_OUTPUT_KILL_ON_SUSPEND : 0) | + (passthrough ? PA_SOURCE_OUTPUT_PASSTHROUGH : 0); + + s = record_stream_new(c, source, &ss, &map, formats, &attr, volume_set ? &volume : NULL, muted, muted_set, flags, p, adjust_latency, early_requests, relative_volume, peak_detect, direct_on_input, &ret); + /* We no longer own the formats idxset */ + formats = NULL; + + CHECK_VALIDITY_GOTO(c->pstream, s, tag, ret, finish); + + 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) s->buffer_attr.maxlength); + pa_tagstruct_putu32(reply, (uint32_t) s->buffer_attr.fragsize); + } + + 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, s->source_output->source->state == PA_SOURCE_SUSPENDED); + } + + if (c->version >= 13) + pa_tagstruct_put_usec(reply, s->configured_source_latency); + + if (c->version >= 22) { + /* Send back the format we negotiated */ + if (s->source_output->format) + pa_tagstruct_put_format_info(reply, s->source_output->format); + else { + pa_format_info *f = pa_format_info_new(); + pa_tagstruct_put_format_info(reply, f); + pa_format_info_free(f); + } + } + + pa_pstream_send_tagstruct(c->pstream, reply); + +finish: + if (p) + pa_proplist_free(p); + if (formats) + pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free); +} + +static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + int ret; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + ret = pa_core_exit(c->protocol->core, false, 0); + CHECK_VALIDITY(c->pstream, ret >= 0, tag, PA_ERR_ACCESS); + + pa_log_debug("Client %s asks us to terminate.", pa_strnull(pa_proplist_gets(c->client->proplist, PA_PROP_APPLICATION_PROCESS_BINARY))); + + pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */ +} + +static void setup_srbchannel(pa_native_connection *c, pa_mem_type_t shm_type) { + pa_srbchannel_template srbt; + pa_srbchannel *srb; + pa_memchunk mc; + pa_tagstruct *t; + int fdlist[2]; + +#ifndef HAVE_CREDS + pa_log_debug("Disabling srbchannel, reason: No fd passing support"); + return; +#endif + + if (!c->options->srbchannel) { + pa_log_debug("Disabling srbchannel, reason: Must be enabled by module parameter"); + return; + } + + if (c->version < 30) { + pa_log_debug("Disabling srbchannel, reason: Protocol too old"); + return; + } + + if (!pa_pstream_get_shm(c->pstream)) { + pa_log_debug("Disabling srbchannel, reason: No SHM support"); + return; + } + + if (c->rw_mempool) { + pa_log_debug("Ignoring srbchannel setup, reason: received COMMAND_AUTH " + "more than once"); + return; + } + + if (!(c->rw_mempool = pa_mempool_new(shm_type, c->protocol->core->shm_size, true))) { + pa_log_warn("Disabling srbchannel, reason: Failed to allocate shared " + "writable memory pool."); + return; + } + + if (shm_type == PA_MEM_TYPE_SHARED_MEMFD) { + const char *reason; + if (pa_pstream_register_memfd_mempool(c->pstream, c->rw_mempool, &reason)) { + pa_log_warn("Disabling srbchannel, reason: Failed to register memfd mempool: %s", reason); + goto fail; + } + } + pa_mempool_set_is_remote_writable(c->rw_mempool, true); + + srb = pa_srbchannel_new(c->protocol->core->mainloop, c->rw_mempool); + if (!srb) { + pa_log_debug("Failed to create srbchannel"); + goto fail; + } + pa_log_debug("Enabling srbchannel..."); + pa_srbchannel_export(srb, &srbt); + + /* Send enable command to client */ + t = pa_tagstruct_new(); + pa_tagstruct_putu32(t, PA_COMMAND_ENABLE_SRBCHANNEL); + pa_tagstruct_putu32(t, (size_t) srb); /* tag */ + fdlist[0] = srbt.readfd; + fdlist[1] = srbt.writefd; + pa_pstream_send_tagstruct_with_fds(c->pstream, t, 2, fdlist, false); + + /* Send ringbuffer memblock to client */ + mc.memblock = srbt.memblock; + mc.index = 0; + mc.length = pa_memblock_get_length(srbt.memblock); + pa_pstream_send_memblock(c->pstream, 0, 0, 0, &mc); + + c->srbpending = srb; + return; + +fail: + if (c->rw_mempool) { + pa_mempool_unref(c->rw_mempool); + c->rw_mempool = NULL; + } +} + +static void command_enable_srbchannel(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + + if (tag != (uint32_t) (size_t) c->srbpending) { + protocol_error(c); + return; + } + + pa_log_debug("Client enabled srbchannel."); + pa_pstream_set_srbchannel(c->pstream, c->srbpending); + c->srbpending = NULL; +} + +static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + const void*cookie; + bool memfd_on_remote = false, do_memfd = false; + pa_tagstruct *reply; + pa_mem_type_t shm_type; + bool shm_on_remote = false, do_shm; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &c->version) < 0 || + pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + /* Minimum supported version */ + if (c->version < 8) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION); + return; + } + + /* Starting with protocol version 13 the MSB of the version tag + reflects if shm is available for this pa_native_connection or + not. */ + if ((c->version & PA_PROTOCOL_VERSION_MASK) >= 13) { + shm_on_remote = !!(c->version & PA_PROTOCOL_FLAG_SHM); + + /* Starting with protocol version 31, the second MSB of the version + * tag reflects whether memfd is supported on the other PA end. */ + if ((c->version & PA_PROTOCOL_VERSION_MASK) >= 31) + memfd_on_remote = !!(c->version & PA_PROTOCOL_FLAG_MEMFD); + + /* Reserve the two most-significant _bytes_ of the version tag + * for flags. */ + c->version &= PA_PROTOCOL_VERSION_MASK; + } + + 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) { + bool success = false; + +#ifdef HAVE_CREDS + const pa_creds *creds; + + if ((creds = pa_pdispatch_creds(pd))) { + if (creds->uid == getuid()) + success = true; + else if (c->options->auth_group) { + int r; + gid_t gid; + + if ((gid = pa_get_gid_of_group(c->options->auth_group)) == (gid_t) -1) + pa_log_warn("Failed to get GID of group '%s'", c->options->auth_group); + else if (gid == creds->gid) + success = true; + + if (!success) { + if ((r = pa_uid_in_group(creds->uid, c->options->auth_group)) < 0) + pa_log_warn("Failed to check group membership."); + else if (r > 0) + success = true; + } + } + + pa_log_info("Got credentials: uid=%lu gid=%lu success=%i", + (unsigned long) creds->uid, + (unsigned long) creds->gid, + (int) success); + } +#endif + + if (!success && c->options->auth_cookie) { + const uint8_t *ac; + + if ((ac = pa_auth_cookie_read(c->options->auth_cookie, PA_NATIVE_COOKIE_LENGTH))) + if (memcmp(ac, cookie, PA_NATIVE_COOKIE_LENGTH) == 0) + success = true; + } + + if (!success) { + pa_log_warn("Denied access to client with invalid authentication 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 and memfd support if possible */ + do_shm = + pa_mempool_is_shared(c->protocol->core->mempool) && + c->is_local; + + pa_log_debug("SHM possible: %s", pa_yes_no(do_shm)); + + if (do_shm) + if (c->version < 10 || (c->version >= 13 && !shm_on_remote)) + do_shm = false; + +#ifdef HAVE_CREDS + if (do_shm) { + /* Only enable SHM if both sides are owned by the same + * user. This is a security measure because otherwise data + * private to the user might leak. */ + + const pa_creds *creds; + if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid) + do_shm = false; + } +#endif + + pa_log_debug("Negotiated SHM: %s", pa_yes_no(do_shm)); + pa_pstream_enable_shm(c->pstream, do_shm); + + /* Do not declare memfd support for 9.0 client libraries (protocol v31). + * + * Although they support memfd transport, such 9.0 clients has an iochannel + * bug that would break memfd audio if they're run in 32-bit mode over a + * 64-bit kernel. Thus influence them to use the POSIX shared memory model + * instead. Check commit 451d1d676237c81 for further details. */ + do_memfd = + c->version >= 32 && do_shm && pa_mempool_is_memfd_backed(c->protocol->core->mempool); + + shm_type = PA_MEM_TYPE_PRIVATE; + if (do_shm) { + if (do_memfd && memfd_on_remote) { + pa_pstream_enable_memfd(c->pstream); + shm_type = PA_MEM_TYPE_SHARED_MEMFD; + } else + shm_type = PA_MEM_TYPE_SHARED_POSIX; + + pa_log_debug("Memfd possible: %s", pa_yes_no(pa_memfd_is_locally_supported())); + pa_log_debug("Negotiated SHM type: %s", pa_mem_type_to_string(shm_type)); + } + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION | (do_shm ? 0x80000000 : 0) | + (do_memfd ? 0x40000000 : 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 + + /* The client enables memfd transport on its pstream only after + * inspecting our version flags to see if we support memfds too. + * + * Thus register any pools after sending the server's version + * flags and _never_ before it. */ + if (shm_type == PA_MEM_TYPE_SHARED_MEMFD) { + const char *reason; + + if (pa_pstream_register_memfd_mempool(c->pstream, c->protocol->core->mempool, &reason)) + pa_log("Failed to register memfd mempool. Reason: %s", reason); + } + + setup_srbchannel(c, shm_type); +} + +static void command_register_memfd_shmid(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_common_command_register_memfd_shmid(c->pstream, pd, c->version, command, t)) + protocol_error(c); +} + +static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + const char *name = NULL; + pa_proplist *p; + pa_tagstruct *reply; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + p = pa_proplist_new(); + + if ((c->version < 13 && pa_tagstruct_gets(t, &name) < 0) || + (c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) || + !pa_tagstruct_eof(t)) { + + protocol_error(c); + pa_proplist_free(p); + return; + } + + if (name) + if (pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + pa_proplist_free(p); + return; + } + + pa_client_update_proplist(c->client, PA_UPDATE_REPLACE, p); + pa_proplist_free(p); + + reply = reply_new(tag); + + if (c->version >= 13) + pa_tagstruct_putu32(reply, c->client->index); + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + const char *name; + uint32_t idx = PA_IDXSET_INVALID; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name_or_wildcard(name, command == PA_COMMAND_LOOKUP_SINK ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE), 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))) + 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))) + idx = source->index; + } + + if (idx == PA_IDXSET_INVALID) + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + else { + pa_tagstruct *reply; + reply = reply_new(tag); + pa_tagstruct_putu32(reply, idx); + pa_pstream_send_tagstruct(c->pstream, reply); + } +} + +static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + playback_stream *s; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + pa_asyncmsgq_post(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_DRAIN, PA_UINT_TO_PTR(tag), 0, NULL, NULL); +} + +static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + pa_tagstruct *reply; + const pa_mempool_stat *stat; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + stat = pa_mempool_get_stat(c->protocol->core->mempool); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_allocated)); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->allocated_size)); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->n_accumulated)); + pa_tagstruct_putu32(reply, (uint32_t) pa_atomic_load(&stat->accumulated_size)); + pa_tagstruct_putu32(reply, (uint32_t) pa_scache_total_size(c->protocol->core)); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + pa_tagstruct *reply; + playback_stream *s; + struct timeval tv, now; + uint32_t idx; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_timeval(t, &tv) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + /* Get an atomic snapshot of all timing parameters */ + pa_assert_se(pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_UPDATE_LATENCY, s, 0, NULL) == 0); + + reply = reply_new(tag); + pa_tagstruct_put_usec(reply, + s->current_sink_latency + + pa_bytes_to_usec(s->render_memblockq_length, &s->sink_input->sink->sample_spec)); + pa_tagstruct_put_usec(reply, 0); + pa_tagstruct_put_boolean(reply, + s->playing_for > 0 && + s->sink_input->sink->state == PA_SINK_RUNNING && + s->sink_input->state == PA_SINK_INPUT_RUNNING); + pa_tagstruct_put_timeval(reply, &tv); + pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now)); + pa_tagstruct_puts64(reply, s->write_index); + pa_tagstruct_puts64(reply, s->read_index); + + if (c->version >= 13) { + pa_tagstruct_putu64(reply, s->underrun_for); + pa_tagstruct_putu64(reply, s->playing_for); + } + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + pa_tagstruct *reply; + record_stream *s; + struct timeval tv, now; + uint32_t idx; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_timeval(t, &tv) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + /* Get an atomic snapshot of all timing parameters */ + pa_assert_se(pa_asyncmsgq_send(s->source_output->source->asyncmsgq, PA_MSGOBJECT(s->source_output), SOURCE_OUTPUT_MESSAGE_UPDATE_LATENCY, s, 0, NULL) == 0); + + reply = reply_new(tag); + pa_tagstruct_put_usec(reply, s->current_monitor_latency); + pa_tagstruct_put_usec(reply, + s->current_source_latency + + pa_bytes_to_usec(s->on_the_fly_snapshot, &s->source_output->sample_spec)); + pa_tagstruct_put_boolean(reply, + s->source_output->source->state == PA_SOURCE_RUNNING && + s->source_output->state == PA_SOURCE_OUTPUT_RUNNING); + pa_tagstruct_put_timeval(reply, &tv); + pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now)); + pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq)); + pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq)); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + upload_stream *s; + uint32_t length; + const char *name = NULL; + pa_sample_spec ss; + pa_channel_map map; + pa_tagstruct *reply; + pa_proplist *p; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_get_sample_spec(t, &ss) < 0 || + pa_tagstruct_get_channel_map(t, &map) < 0 || + pa_tagstruct_getu32(t, &length) < 0) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE); + + p = pa_proplist_new(); + + if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) || + !pa_tagstruct_eof(t)) { + + 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); + + if (!name || !pa_namereg_is_valid_name(name)) { + pa_proplist_free(p); + CHECK_VALIDITY(c->pstream, false, tag, PA_ERR_INVALID); + } + + s = upload_stream_new(c, &ss, &map, name, length, p); + pa_proplist_free(p); + + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, s->index); + pa_tagstruct_putu32(reply, length); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t channel; + upload_stream *s; + uint32_t idx; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + s = pa_idxset_get_by_index(c->output_streams, channel); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, upload_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + if (!s->memchunk.memblock) + pa_pstream_send_error(c->pstream, tag, PA_ERR_TOOLARGE); + else if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, s->proplist, &idx) < 0) + pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL); + else + pa_pstream_send_simple_ack(c->pstream, tag); + + upload_stream_unlink(s); +} + +static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t sink_index; + pa_volume_t volume; + pa_sink *sink; + const char *name, *sink_name; + uint32_t idx; + pa_proplist *p; + pa_tagstruct *reply; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + if (pa_tagstruct_getu32(t, &sink_index) < 0 || + pa_tagstruct_gets(t, &sink_name) < 0 || + pa_tagstruct_getu32(t, &volume) < 0 || + pa_tagstruct_gets(t, &name) < 0) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, !sink_name || pa_namereg_is_valid_name_or_wildcard(sink_name, PA_NAMEREG_SINK), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, sink_index == PA_INVALID_INDEX || !sink_name, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !sink_name || sink_index == PA_INVALID_INDEX, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); + + if (sink_index != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); + else + sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK); + + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + p = pa_proplist_new(); + + if ((c->version >= 13 && pa_tagstruct_get_proplist(t, p) < 0) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + pa_proplist_free(p); + return; + } + + pa_proplist_update(p, PA_UPDATE_MERGE, c->client->proplist); + + if (pa_scache_play_item(c->protocol->core, name, sink, volume, p, &idx) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + pa_proplist_free(p); + return; + } + + pa_proplist_free(p); + + reply = reply_new(tag); + + if (c->version >= 13) + pa_tagstruct_putu32(reply, idx); + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + const char *name; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); + + if (pa_scache_remove_item(c->protocol->core, name) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + return; + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, const pa_sample_spec *original) { + pa_assert(c); + pa_assert(fixed); + pa_assert(original); + + *fixed = *original; + + if (c->version < 12) { + /* Before protocol version 12 we didn't support S32 samples, + * so we need to lie about this to the client */ + + if (fixed->format == PA_SAMPLE_S32LE) + fixed->format = PA_SAMPLE_FLOAT32LE; + if (fixed->format == PA_SAMPLE_S32BE) + fixed->format = PA_SAMPLE_FLOAT32BE; + } + + if (c->version < 15) { + if (fixed->format == PA_SAMPLE_S24LE || fixed->format == PA_SAMPLE_S24_32LE) + fixed->format = PA_SAMPLE_FLOAT32LE; + if (fixed->format == PA_SAMPLE_S24BE || fixed->format == PA_SAMPLE_S24_32BE) + fixed->format = PA_SAMPLE_FLOAT32BE; + } +} + +static void sink_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink *sink) { + pa_sample_spec fixed_ss; + + pa_assert(t); + pa_sink_assert_ref(sink); + + fixup_sample_spec(c, &fixed_ss, &sink->sample_spec); + + pa_tagstruct_put( + t, + PA_TAG_U32, sink->index, + PA_TAG_STRING, sink->name, + PA_TAG_STRING, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)), + PA_TAG_SAMPLE_SPEC, &fixed_ss, + PA_TAG_CHANNEL_MAP, &sink->channel_map, + PA_TAG_U32, sink->module ? sink->module->index : PA_INVALID_INDEX, + PA_TAG_CVOLUME, pa_sink_get_volume(sink, false), + PA_TAG_BOOLEAN, pa_sink_get_mute(sink, false), + PA_TAG_U32, sink->monitor_source ? sink->monitor_source->index : PA_INVALID_INDEX, + PA_TAG_STRING, sink->monitor_source ? sink->monitor_source->name : NULL, + PA_TAG_USEC, pa_sink_get_latency(sink), + PA_TAG_STRING, sink->driver, + PA_TAG_U32, sink->flags & PA_SINK_CLIENT_FLAGS_MASK, + 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)); + } + + if (c->version >= 15) { + pa_tagstruct_put_volume(t, sink->base_volume); + if (PA_UNLIKELY(sink->state == PA_SINK_INVALID_STATE)) + pa_log_error("Internal sink state is invalid."); + pa_tagstruct_putu32(t, sink->state); + pa_tagstruct_putu32(t, sink->n_volume_steps); + pa_tagstruct_putu32(t, sink->card ? sink->card->index : PA_INVALID_INDEX); + } + + if (c->version >= 16) { + void *state; + pa_device_port *p; + + pa_tagstruct_putu32(t, pa_hashmap_size(sink->ports)); + + PA_HASHMAP_FOREACH(p, sink->ports, state) { + pa_tagstruct_puts(t, p->name); + pa_tagstruct_puts(t, p->description); + pa_tagstruct_putu32(t, p->priority); + if (c->version >= 24) { + pa_tagstruct_putu32(t, p->available); + if (c->version >= 34) { + pa_tagstruct_puts(t, p->availability_group); + pa_tagstruct_putu32(t, p->type); + } + } + } + + pa_tagstruct_puts(t, sink->active_port ? sink->active_port->name : NULL); + } + + if (c->version >= 21) { + uint32_t i; + pa_format_info *f; + pa_idxset *formats = pa_sink_get_formats(sink); + + pa_tagstruct_putu8(t, (uint8_t) pa_idxset_size(formats)); + PA_IDXSET_FOREACH(f, formats, i) { + pa_tagstruct_put_format_info(t, f); + } + + pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free); + } +} + +static void source_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source *source) { + pa_sample_spec fixed_ss; + + pa_assert(t); + pa_source_assert_ref(source); + + fixup_sample_spec(c, &fixed_ss, &source->sample_spec); + + pa_tagstruct_put( + t, + PA_TAG_U32, source->index, + PA_TAG_STRING, source->name, + PA_TAG_STRING, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)), + PA_TAG_SAMPLE_SPEC, &fixed_ss, + PA_TAG_CHANNEL_MAP, &source->channel_map, + PA_TAG_U32, source->module ? source->module->index : PA_INVALID_INDEX, + PA_TAG_CVOLUME, pa_source_get_volume(source, false), + PA_TAG_BOOLEAN, pa_source_get_mute(source, false), + PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX, + PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL, + PA_TAG_USEC, pa_source_get_latency(source), + PA_TAG_STRING, source->driver, + PA_TAG_U32, source->flags & PA_SOURCE_CLIENT_FLAGS_MASK, + 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)); + } + + if (c->version >= 15) { + pa_tagstruct_put_volume(t, source->base_volume); + if (PA_UNLIKELY(source->state == PA_SOURCE_INVALID_STATE)) + pa_log_error("Internal source state is invalid."); + pa_tagstruct_putu32(t, source->state); + pa_tagstruct_putu32(t, source->n_volume_steps); + pa_tagstruct_putu32(t, source->card ? source->card->index : PA_INVALID_INDEX); + } + + if (c->version >= 16) { + void *state; + pa_device_port *p; + + pa_tagstruct_putu32(t, pa_hashmap_size(source->ports)); + + PA_HASHMAP_FOREACH(p, source->ports, state) { + pa_tagstruct_puts(t, p->name); + pa_tagstruct_puts(t, p->description); + pa_tagstruct_putu32(t, p->priority); + if (c->version >= 24) { + pa_tagstruct_putu32(t, p->available); + if (c->version >= 34) { + pa_tagstruct_puts(t, p->availability_group); + pa_tagstruct_putu32(t, p->type); + } + } + } + + pa_tagstruct_puts(t, source->active_port ? source->active_port->name : NULL); + } + + if (c->version >= 22) { + uint32_t i; + pa_format_info *f; + pa_idxset *formats = pa_source_get_formats(source); + + pa_tagstruct_putu8(t, (uint8_t) pa_idxset_size(formats)); + PA_IDXSET_FOREACH(f, formats, i) { + pa_tagstruct_put_format_info(t, f); + } + + pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free); + } +} + +static void client_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_client *client) { + pa_assert(t); + pa_assert(client); + + pa_tagstruct_putu32(t, client->index); + pa_tagstruct_puts(t, pa_strnull(pa_proplist_gets(client->proplist, PA_PROP_APPLICATION_NAME))); + pa_tagstruct_putu32(t, client->module ? client->module->index : PA_INVALID_INDEX); + pa_tagstruct_puts(t, client->driver); + + if (c->version >= 13) + pa_tagstruct_put_proplist(t, client->proplist); +} + +static void card_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_card *card) { + void *state = NULL; + pa_card_profile *p; + pa_device_port *port; + + pa_assert(t); + pa_assert(card); + + pa_tagstruct_putu32(t, card->index); + pa_tagstruct_puts(t, card->name); + pa_tagstruct_putu32(t, card->module ? card->module->index : PA_INVALID_INDEX); + pa_tagstruct_puts(t, card->driver); + + pa_tagstruct_putu32(t, pa_hashmap_size(card->profiles)); + + PA_HASHMAP_FOREACH(p, card->profiles, state) { + pa_tagstruct_puts(t, p->name); + pa_tagstruct_puts(t, p->description); + pa_tagstruct_putu32(t, p->n_sinks); + pa_tagstruct_putu32(t, p->n_sources); + pa_tagstruct_putu32(t, p->priority); + + if (c->version >= 29) + pa_tagstruct_putu32(t, (p->available != PA_AVAILABLE_NO)); + } + + pa_tagstruct_puts(t, card->active_profile->name); + pa_tagstruct_put_proplist(t, card->proplist); + + if (c->version < 26) + return; + + pa_tagstruct_putu32(t, pa_hashmap_size(card->ports)); + + PA_HASHMAP_FOREACH(port, card->ports, state) { + void *state2; + + pa_tagstruct_puts(t, port->name); + pa_tagstruct_puts(t, port->description); + pa_tagstruct_putu32(t, port->priority); + pa_tagstruct_putu32(t, port->available); + pa_tagstruct_putu8(t, port->direction); + pa_tagstruct_put_proplist(t, port->proplist); + + pa_tagstruct_putu32(t, pa_hashmap_size(port->profiles)); + + PA_HASHMAP_FOREACH(p, port->profiles, state2) + pa_tagstruct_puts(t, p->name); + + if (c->version >= 27) { + pa_tagstruct_puts64(t, port->latency_offset); + if (c->version >= 34) { + pa_tagstruct_puts(t, port->availability_group); + pa_tagstruct_putu32(t, port->type); + } + } + } +} + +static void module_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_module *module) { + pa_assert(t); + pa_assert(module); + + pa_tagstruct_putu32(t, module->index); + pa_tagstruct_puts(t, module->name); + pa_tagstruct_puts(t, module->argument); + pa_tagstruct_putu32(t, (uint32_t) pa_module_get_n_used(module)); + + if (c->version < 15) + pa_tagstruct_put_boolean(t, false); /* autoload is obsolete */ + + if (c->version >= 15) + pa_tagstruct_put_proplist(t, module->proplist); +} + +static void sink_input_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_sink_input *s) { + pa_sample_spec fixed_ss; + pa_usec_t sink_latency; + pa_cvolume v; + bool has_volume = false; + + pa_assert(t); + pa_sink_input_assert_ref(s); + + fixup_sample_spec(c, &fixed_ss, &s->sample_spec); + + has_volume = pa_sink_input_is_volume_readable(s); + if (has_volume) + pa_sink_input_get_volume(s, &v, true); + else + pa_cvolume_reset(&v, fixed_ss.channels); + + 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, &v); + 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, s->muted); + if (c->version >= 13) + pa_tagstruct_put_proplist(t, s->proplist); + if (c->version >= 19) + pa_tagstruct_put_boolean(t, s->state == PA_SINK_INPUT_CORKED); + if (c->version >= 20) { + pa_tagstruct_put_boolean(t, has_volume); + pa_tagstruct_put_boolean(t, s->volume_writable); + } + if (c->version >= 21) + pa_tagstruct_put_format_info(t, s->format); +} + +static void source_output_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_source_output *s) { + pa_sample_spec fixed_ss; + pa_usec_t source_latency; + pa_cvolume v; + bool has_volume = false; + + pa_assert(t); + pa_source_output_assert_ref(s); + + fixup_sample_spec(c, &fixed_ss, &s->sample_spec); + + has_volume = pa_source_output_is_volume_readable(s); + if (has_volume) + pa_source_output_get_volume(s, &v, true); + else + pa_cvolume_reset(&v, fixed_ss.channels); + + 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); + if (c->version >= 19) + pa_tagstruct_put_boolean(t, s->state == PA_SOURCE_OUTPUT_CORKED); + if (c->version >= 22) { + pa_tagstruct_put_cvolume(t, &v); + pa_tagstruct_put_boolean(t, s->muted); + pa_tagstruct_put_boolean(t, has_volume); + pa_tagstruct_put_boolean(t, s->volume_writable); + pa_tagstruct_put_format_info(t, s->format); + } +} + +static void scache_fill_tagstruct(pa_native_connection *c, pa_tagstruct *t, pa_scache_entry *e) { + pa_sample_spec fixed_ss; + pa_cvolume v; + + 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); + + if (e->volume_is_set) + v = e->volume; + else + pa_cvolume_init(&v); + + pa_tagstruct_put_cvolume(t, &v); + pa_tagstruct_put_usec(t, e->memchunk.memblock ? pa_bytes_to_usec(e->memchunk.length, &e->sample_spec) : 0); + pa_tagstruct_put_sample_spec(t, &fixed_ss); + pa_tagstruct_put_channel_map(t, &e->channel_map); + pa_tagstruct_putu32(t, (uint32_t) e->memchunk.length); + pa_tagstruct_put_boolean(t, e->lazy); + pa_tagstruct_puts(t, e->filename); + + if (c->version >= 13) + pa_tagstruct_put_proplist(t, e->proplist); +} + +static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_client *client = NULL; + pa_card *card = NULL; + pa_module *module = NULL; + pa_sink_input *si = NULL; + pa_source_output *so = NULL; + pa_scache_entry *sce = NULL; + const char *name = NULL; + pa_tagstruct *reply; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command != PA_COMMAND_GET_CLIENT_INFO && + command != PA_COMMAND_GET_MODULE_INFO && + command != PA_COMMAND_GET_SINK_INPUT_INFO && + command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO && + pa_tagstruct_gets(t, &name) < 0) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !name || + (command == PA_COMMAND_GET_SINK_INFO && + pa_namereg_is_valid_name_or_wildcard(name, PA_NAMEREG_SINK)) || + (command == PA_COMMAND_GET_SOURCE_INFO && + pa_namereg_is_valid_name_or_wildcard(name, PA_NAMEREG_SOURCE)) || + pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, command == PA_COMMAND_GET_SINK_INFO || + command == PA_COMMAND_GET_SOURCE_INFO || + (idx != PA_INVALID_INDEX || name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !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); + } 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); + } else if (command == PA_COMMAND_GET_CARD_INFO) { + if (idx != PA_INVALID_INDEX) + card = pa_idxset_get_by_index(c->protocol->core->cards, idx); + else + card = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_CARD); + } 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); + } + + if (!sink && !source && !client && !card && !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 (card) + card_fill_tagstruct(c, reply, card); + else if (module) + module_fill_tagstruct(c, reply, module); + else if (si) + sink_input_fill_tagstruct(c, reply, si); + else if (so) + source_output_fill_tagstruct(c, reply, so); + else + scache_fill_tagstruct(c, reply, sce); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + pa_idxset *i; + uint32_t idx; + void *p; + pa_tagstruct *reply; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + + if (command == PA_COMMAND_GET_SINK_INFO_LIST) + i = c->protocol->core->sinks; + else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) + i = c->protocol->core->sources; + else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) + i = c->protocol->core->clients; + else if (command == PA_COMMAND_GET_CARD_INFO_LIST) + i = c->protocol->core->cards; + 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) { + PA_IDXSET_FOREACH(p, 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_CARD_INFO_LIST) + card_fill_tagstruct(c, reply, p); + else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) + module_fill_tagstruct(c, reply, p); + else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) + sink_input_fill_tagstruct(c, reply, p); + else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) + source_output_fill_tagstruct(c, reply, p); + else { + pa_assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); + scache_fill_tagstruct(c, reply, p); + } + } + } + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + pa_tagstruct *reply; + pa_sample_spec fixed_ss; + char *h, *u; + pa_core *core; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + pa_tagstruct_puts(reply, PACKAGE_NAME); + pa_tagstruct_puts(reply, PACKAGE_VERSION); + + u = pa_get_user_name_malloc(); + pa_tagstruct_puts(reply, u); + pa_xfree(u); + + h = pa_get_host_name_malloc(); + pa_tagstruct_puts(reply, h); + pa_xfree(h); + + core = c->protocol->core; + + fixup_sample_spec(c, &fixed_ss, &core->default_sample_spec); + pa_tagstruct_put_sample_spec(reply, &fixed_ss); + + pa_tagstruct_puts(reply, core->default_sink ? core->default_sink->name : NULL); + pa_tagstruct_puts(reply, core->default_source ? core->default_source->name : NULL); + + pa_tagstruct_putu32(reply, c->protocol->core->cookie); + + if (c->version >= 15) + pa_tagstruct_put_channel_map(reply, &core->default_channel_map); + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) { + pa_tagstruct *t; + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + + pa_native_connection_assert_ref(c); + + t = pa_tagstruct_new(); + pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT); + pa_tagstruct_putu32(t, (uint32_t) -1); + pa_tagstruct_putu32(t, e); + pa_tagstruct_putu32(t, idx); + pa_pstream_send_tagstruct(c->pstream, t); +} + +static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + pa_subscription_mask_t m; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &m) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID); + + if (c->subscription) + pa_subscription_free(c->subscription); + + if (m != 0) { + c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c); + pa_assert(c->subscription); + } else + c->subscription = NULL; + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_volume( + pa_pdispatch *pd, + uint32_t command, + uint32_t tag, + pa_tagstruct *t, + void *userdata) { + + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + pa_cvolume volume; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_sink_input *si = NULL; + pa_source_output *so = NULL; + const char *name = NULL; + const char *client_name; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) || + (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) || + pa_tagstruct_get_cvolume(t, &volume) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name_or_wildcard(name, command == PA_COMMAND_SET_SINK_VOLUME ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx != PA_INVALID_INDEX) ^ (name != NULL), 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); + 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); + break; + + case PA_COMMAND_SET_SINK_INPUT_VOLUME: + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + break; + + case PA_COMMAND_SET_SOURCE_OUTPUT_VOLUME: + so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + break; + + default: + pa_assert_not_reached(); + } + + CHECK_VALIDITY(c->pstream, si || so || sink || source, tag, PA_ERR_NOENTITY); + + client_name = pa_strnull(pa_proplist_gets(c->client->proplist, PA_PROP_APPLICATION_PROCESS_BINARY)); + + if (sink) { + CHECK_VALIDITY(c->pstream, volume.channels == 1 || pa_cvolume_compatible(&volume, &sink->sample_spec), tag, PA_ERR_INVALID); + + pa_log_debug("Client %s changes volume of sink %s.", client_name, sink->name); + pa_sink_set_volume(sink, &volume, true, true); + } else if (source) { + CHECK_VALIDITY(c->pstream, volume.channels == 1 || pa_cvolume_compatible(&volume, &source->sample_spec), tag, PA_ERR_INVALID); + + pa_log_debug("Client %s changes volume of source %s.", client_name, source->name); + pa_source_set_volume(source, &volume, true, true); + } else if (si) { + CHECK_VALIDITY(c->pstream, si->volume_writable, tag, PA_ERR_BADSTATE); + CHECK_VALIDITY(c->pstream, volume.channels == 1 || pa_cvolume_compatible(&volume, &si->sample_spec), tag, PA_ERR_INVALID); + + pa_log_debug("Client %s changes volume of sink input %s.", + client_name, + pa_strnull(pa_proplist_gets(si->proplist, PA_PROP_MEDIA_NAME))); + pa_sink_input_set_volume(si, &volume, true, true); + } else if (so) { + CHECK_VALIDITY(c->pstream, so->volume_writable, tag, PA_ERR_BADSTATE); + CHECK_VALIDITY(c->pstream, volume.channels == 1 || pa_cvolume_compatible(&volume, &so->sample_spec), tag, PA_ERR_INVALID); + + pa_log_debug("Client %s changes volume of source output %s.", + client_name, + pa_strnull(pa_proplist_gets(so->proplist, PA_PROP_MEDIA_NAME))); + pa_source_output_set_volume(so, &volume, true, true); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_mute( + pa_pdispatch *pd, + uint32_t command, + uint32_t tag, + pa_tagstruct *t, + void *userdata) { + + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + bool mute; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_sink_input *si = NULL; + pa_source_output *so = NULL; + const char *name = NULL, *client_name; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command == PA_COMMAND_SET_SINK_MUTE && pa_tagstruct_gets(t, &name) < 0) || + (command == PA_COMMAND_SET_SOURCE_MUTE && pa_tagstruct_gets(t, &name) < 0) || + pa_tagstruct_get_boolean(t, &mute) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name_or_wildcard(name, command == PA_COMMAND_SET_SINK_MUTE ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx != PA_INVALID_INDEX) ^ (name != NULL), 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); + + 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); + + break; + + case PA_COMMAND_SET_SINK_INPUT_MUTE: + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + break; + + case PA_COMMAND_SET_SOURCE_OUTPUT_MUTE: + so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + break; + + default: + pa_assert_not_reached(); + } + + CHECK_VALIDITY(c->pstream, si || so || sink || source, tag, PA_ERR_NOENTITY); + + client_name = pa_strnull(pa_proplist_gets(c->client->proplist, PA_PROP_APPLICATION_PROCESS_BINARY)); + + if (sink) { + pa_log_debug("Client %s changes mute of sink %s.", client_name, sink->name); + pa_sink_set_mute(sink, mute, true); + } else if (source) { + pa_log_debug("Client %s changes mute of source %s.", client_name, source->name); + pa_source_set_mute(source, mute, true); + } else if (si) { + pa_log_debug("Client %s changes mute of sink input %s.", + client_name, + pa_strnull(pa_proplist_gets(si->proplist, PA_PROP_MEDIA_NAME))); + pa_sink_input_set_mute(si, mute, true); + } else if (so) { + pa_log_debug("Client %s changes mute of source output %s.", + client_name, + pa_strnull(pa_proplist_gets(so->proplist, PA_PROP_MEDIA_NAME))); + pa_source_output_set_mute(so, mute, true); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + bool b; + playback_stream *s; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + pa_sink_input_cork(s->sink_input, b); + + if (b) + s->is_underrun = true; + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_trigger_or_flush_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + playback_stream *s; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + switch (command) { + case PA_COMMAND_FLUSH_PLAYBACK_STREAM: + pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_FLUSH, NULL, 0, NULL); + break; + + case PA_COMMAND_PREBUF_PLAYBACK_STREAM: + pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_PREBUF_FORCE, NULL, 0, NULL); + break; + + case PA_COMMAND_TRIGGER_PLAYBACK_STREAM: + pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_TRIGGER, NULL, 0, NULL); + break; + + default: + pa_assert_not_reached(); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + record_stream *s; + bool b; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_source_output_cork(s->source_output, b); + pa_memblockq_prebuf_force(s->memblockq); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + record_stream *s; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_memblockq_flush_read(s->memblockq); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + pa_buffer_attr a; + pa_tagstruct *reply; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + memset(&a, 0, sizeof(a)); + + 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; + bool adjust_latency = false, early_requests = false; + + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + if (pa_tagstruct_get( + t, + PA_TAG_U32, &a.maxlength, + PA_TAG_U32, &a.tlength, + PA_TAG_U32, &a.prebuf, + PA_TAG_U32, &a.minreq, + PA_TAG_INVALID) < 0 || + (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) || + (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + s->adjust_latency = adjust_latency; + s->early_requests = early_requests; + s->buffer_attr_req = a; + + fix_playback_buffer_attr(s); + pa_assert_se(pa_asyncmsgq_send(s->sink_input->sink->asyncmsgq, PA_MSGOBJECT(s->sink_input), SINK_INPUT_MESSAGE_UPDATE_BUFFER_ATTR, NULL, 0, NULL) == 0); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, s->buffer_attr.maxlength); + pa_tagstruct_putu32(reply, s->buffer_attr.tlength); + pa_tagstruct_putu32(reply, s->buffer_attr.prebuf); + pa_tagstruct_putu32(reply, s->buffer_attr.minreq); + + if (c->version >= 13) + pa_tagstruct_put_usec(reply, s->configured_sink_latency); + + } else { + record_stream *s; + bool adjust_latency = false, early_requests = false; + pa_assert(command == PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR); + + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + if (pa_tagstruct_get( + t, + PA_TAG_U32, &a.maxlength, + PA_TAG_U32, &a.fragsize, + PA_TAG_INVALID) < 0 || + (c->version >= 13 && pa_tagstruct_get_boolean(t, &adjust_latency) < 0) || + (c->version >= 14 && pa_tagstruct_get_boolean(t, &early_requests) < 0) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + s->adjust_latency = adjust_latency; + s->early_requests = early_requests; + s->buffer_attr_req = a; + + fix_record_buffer_attr_pre(s); + pa_memblockq_set_maxlength(s->memblockq, s->buffer_attr.maxlength); + pa_memblockq_get_attr(s->memblockq, &s->buffer_attr); + fix_record_buffer_attr_post(s); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, s->buffer_attr.maxlength); + pa_tagstruct_putu32(reply, s->buffer_attr.fragsize); + + if (c->version >= 13) + pa_tagstruct_put_usec(reply, s->configured_source_latency); + } + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_update_stream_sample_rate(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + uint32_t rate; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_getu32(t, &rate) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, pa_sample_rate_valid(rate), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE) { + playback_stream *s; + + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + pa_sink_input_set_rate(s->sink_input, rate); + + } else { + record_stream *s; + pa_assert(command == PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE); + + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_source_output_set_rate(s->source_output, rate); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_update_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + uint32_t mode; + pa_proplist *p; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + p = pa_proplist_new(); + + if (command == PA_COMMAND_UPDATE_CLIENT_PROPLIST) { + + if (pa_tagstruct_getu32(t, &mode) < 0 || + pa_tagstruct_get_proplist(t, p) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + pa_proplist_free(p); + return; + } + + } else { + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_getu32(t, &mode) < 0 || + pa_tagstruct_get_proplist(t, p) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + pa_proplist_free(p); + return; + } + } + + if (!(mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE)) { + pa_proplist_free(p); + CHECK_VALIDITY(c->pstream, false, 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); + if (!s || !playback_stream_isinstance(s)) { + pa_proplist_free(p); + CHECK_VALIDITY(c->pstream, false, tag, PA_ERR_NOENTITY); + } + pa_sink_input_update_proplist(s->sink_input, mode, p); + + } else if (command == PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST) { + record_stream *s; + + if (!(s = pa_idxset_get_by_index(c->record_streams, idx))) { + pa_proplist_free(p); + CHECK_VALIDITY(c->pstream, false, tag, PA_ERR_NOENTITY); + } + pa_source_output_update_proplist(s->source_output, mode, p); + + } else { + pa_assert(command == PA_COMMAND_UPDATE_CLIENT_PROPLIST); + + pa_client_update_proplist(c->client, mode, p); + } + + pa_pstream_send_simple_ack(c->pstream, tag); + pa_proplist_free(p); +} + +static void command_remove_proplist(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + unsigned changed = 0; + pa_proplist *p; + pa_strlist *l = NULL; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + if (command != PA_COMMAND_REMOVE_CLIENT_PROPLIST) { + + if (pa_tagstruct_getu32(t, &idx) < 0) { + protocol_error(c); + return; + } + } + + if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) { + playback_stream *s; + + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + p = s->sink_input->proplist; + + } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) { + record_stream *s; + + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + p = s->source_output->proplist; + } else { + pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST); + + p = c->client->proplist; + } + + for (;;) { + const char *k; + + if (pa_tagstruct_gets(t, &k) < 0) { + protocol_error(c); + pa_strlist_free(l); + return; + } + + if (!k) + break; + + l = pa_strlist_prepend(l, k); + } + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + pa_strlist_free(l); + return; + } + + for (;;) { + char *z; + + l = pa_strlist_pop(l, &z); + + if (!z) + break; + + changed += (unsigned) (pa_proplist_unset(p, z) >= 0); + pa_xfree(z); + } + + pa_pstream_send_simple_ack(c->pstream, tag); + + if (changed) { + if (command == PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST) { + playback_stream *s; + + s = pa_idxset_get_by_index(c->output_streams, idx); + pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->sink_input->index); + + } else if (command == PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST) { + record_stream *s; + + s = pa_idxset_get_by_index(c->record_streams, idx); + pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, s->source_output->index); + + } else { + pa_assert(command == PA_COMMAND_REMOVE_CLIENT_PROPLIST); + pa_subscription_post(c->protocol->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->client->index); + } + } +} + +static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + const char *s; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &s) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !s || pa_namereg_is_valid_name(s), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SET_DEFAULT_SOURCE) { + pa_source *source; + + source = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SOURCE); + CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); + + pa_core_set_configured_default_source(c->protocol->core, source->name); + } else { + pa_sink *sink; + pa_assert(command == PA_COMMAND_SET_DEFAULT_SINK); + + sink = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SINK); + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + pa_core_set_configured_default_sink(c->protocol->core, sink->name); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + const char *name; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) { + playback_stream *s; + + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, playback_stream_isinstance(s), tag, PA_ERR_NOENTITY); + + pa_sink_input_set_property(s->sink_input, PA_PROP_MEDIA_NAME, 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_property(s->source_output, PA_PROP_MEDIA_NAME, name); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + if (command == PA_COMMAND_KILL_CLIENT) { + pa_client *client; + + client = pa_idxset_get_by_index(c->protocol->core->clients, idx); + CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY); + + pa_native_connection_ref(c); + pa_client_kill(client); + + } else if (command == PA_COMMAND_KILL_SINK_INPUT) { + pa_sink_input *s; + + s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_native_connection_ref(c); + pa_sink_input_kill(s); + } else { + pa_source_output *s; + + pa_assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT); + + s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_native_connection_ref(c); + pa_source_output_kill(s); + } + + pa_pstream_send_simple_ack(c->pstream, tag); + pa_native_connection_unref(c); +} + +static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + pa_module *m; + const char *name, *argument; + pa_tagstruct *reply; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_gets(t, &argument) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID); + + if (pa_module_load(&m, c->protocol->core, name, argument) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED); + return; + } + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, m->index); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx; + pa_module *m; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + m = pa_idxset_get_by_index(c->protocol->core->modules, idx); + CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY); + + pa_module_unload_request(m, false); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_move_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx = PA_INVALID_INDEX, idx_device = PA_INVALID_INDEX; + const char *name_device = NULL; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_getu32(t, &idx_device) < 0 || + pa_tagstruct_gets(t, &name_device) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + + CHECK_VALIDITY(c->pstream, !name_device || pa_namereg_is_valid_name_or_wildcard(name_device, command == PA_COMMAND_MOVE_SINK_INPUT ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx_device != PA_INVALID_INDEX) ^ (name_device != NULL), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_MOVE_SINK_INPUT) { + pa_sink_input *si = NULL; + pa_sink *sink = NULL; + + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + + if (idx_device != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx_device); + else + sink = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SINK); + + CHECK_VALIDITY(c->pstream, si && sink, tag, PA_ERR_NOENTITY); + + if (pa_sink_input_move_to(si, sink, true) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } else { + pa_source_output *so = NULL; + pa_source *source; + + pa_assert(command == PA_COMMAND_MOVE_SOURCE_OUTPUT); + + so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + + if (idx_device != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx_device); + else + source = pa_namereg_get(c->protocol->core, name_device, PA_NAMEREG_SOURCE); + + CHECK_VALIDITY(c->pstream, so && source, tag, PA_ERR_NOENTITY); + + if (pa_source_output_move_to(so, source, true) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx = PA_INVALID_INDEX; + const char *name = NULL; + bool b; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name_or_wildcard(name, command == PA_COMMAND_SUSPEND_SINK ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE) || *name == 0, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx != PA_INVALID_INDEX) ^ (name != NULL), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SUSPEND_SINK) { + + if (idx == PA_INVALID_INDEX && name && !*name) { + + pa_log_debug("%s all sinks", b ? "Suspending" : "Resuming"); + + if (pa_sink_suspend_all(c->protocol->core, b, PA_SUSPEND_USER) < 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); + + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + pa_log_debug("%s of sink %s requested by client %" PRIu32 ".", + b ? "Suspending" : "Resuming", sink->name, c->client->index); + + if (pa_sink_suspend(sink, b, PA_SUSPEND_USER) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } + } else { + + pa_assert(command == PA_COMMAND_SUSPEND_SOURCE); + + if (idx == PA_INVALID_INDEX && name && !*name) { + + pa_log_debug("%s all sources", b ? "Suspending" : "Resuming"); + + if (pa_source_suspend_all(c->protocol->core, b, PA_SUSPEND_USER) < 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); + + CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); + + pa_log_debug("%s of source %s requested by client %" PRIu32 ".", + b ? "Suspending" : "Resuming", source->name, c->client->index); + + if (pa_source_suspend(source, b, PA_SUSPEND_USER) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_INVALID); + return; + } + } + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx = PA_INVALID_INDEX; + const char *name = NULL; + pa_module *m; + pa_native_protocol_ext_cb_t cb; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !name || pa_utf8_valid(name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx != PA_INVALID_INDEX) ^ (name != NULL), tag, PA_ERR_INVALID); + + if (idx != PA_INVALID_INDEX) + m = pa_idxset_get_by_index(c->protocol->core->modules, idx); + else + PA_IDXSET_FOREACH(m, c->protocol->core->modules, idx) + if (pa_streq(name, m->name)) + break; + + CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOEXTENSION); + CHECK_VALIDITY(c->pstream, m->load_once || idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + + cb = (pa_native_protocol_ext_cb_t) (unsigned long) pa_hashmap_get(c->protocol->extensions, m); + CHECK_VALIDITY(c->pstream, cb, tag, PA_ERR_NOEXTENSION); + + if (cb(c->protocol, m, c, tag, t) < 0) + protocol_error(c); +} + +static void command_set_card_profile(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx = PA_INVALID_INDEX; + const char *name = NULL, *profile_name = NULL; + pa_card *card = NULL; + pa_card_profile *profile; + int ret; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_gets(t, &profile_name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name(name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx != PA_INVALID_INDEX) ^ (name != NULL), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, profile_name, tag, PA_ERR_INVALID); + + if (idx != PA_INVALID_INDEX) + card = pa_idxset_get_by_index(c->protocol->core->cards, idx); + else + card = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_CARD); + + CHECK_VALIDITY(c->pstream, card, tag, PA_ERR_NOENTITY); + + profile = pa_hashmap_get(card->profiles, profile_name); + + CHECK_VALIDITY(c->pstream, profile, tag, PA_ERR_NOENTITY); + + pa_log_info("Application \"%s\" requests card profile change. card = %s, profile = %s", + pa_strnull(pa_proplist_gets(c->client->proplist, PA_PROP_APPLICATION_NAME)), + card->name, + profile->name); + + if ((ret = pa_card_set_profile(card, profile, true)) < 0) { + pa_pstream_send_error(c->pstream, tag, -ret); + return; + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_sink_or_source_port(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + uint32_t idx = PA_INVALID_INDEX; + const char *name = NULL, *port = NULL; + int ret; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_gets(t, &port) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name_or_wildcard(name, command == PA_COMMAND_SET_SINK_PORT ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx != PA_INVALID_INDEX) ^ (name != NULL), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, port, tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SET_SINK_PORT) { + pa_sink *sink; + + 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); + + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + if ((ret = pa_sink_set_port(sink, port, true)) < 0) { + pa_pstream_send_error(c->pstream, tag, -ret); + return; + } + } else { + pa_source *source; + + pa_assert(command == PA_COMMAND_SET_SOURCE_PORT); + + 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); + + CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); + + if ((ret = pa_source_set_port(source, port, true)) < 0) { + pa_pstream_send_error(c->pstream, tag, -ret); + return; + } + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_port_latency_offset(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + const char *port_name, *card_name; + uint32_t idx = PA_INVALID_INDEX; + int64_t offset; + pa_card *card = NULL; + pa_device_port *port = NULL; + + pa_native_connection_assert_ref(c); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &card_name) < 0 || + pa_tagstruct_gets(t, &port_name) < 0 || + pa_tagstruct_gets64(t, &offset) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !card_name || pa_namereg_is_valid_name(card_name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (idx != PA_INVALID_INDEX) ^ (card_name != NULL), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, port_name, tag, PA_ERR_INVALID); + + if (idx != PA_INVALID_INDEX) + card = pa_idxset_get_by_index(c->protocol->core->cards, idx); + else + card = pa_namereg_get(c->protocol->core, card_name, PA_NAMEREG_CARD); + + CHECK_VALIDITY(c->pstream, card, tag, PA_ERR_NOENTITY); + + port = pa_hashmap_get(card->ports, port_name); + CHECK_VALIDITY(c->pstream, port, tag, PA_ERR_NOENTITY); + + pa_device_port_set_latency_offset(port, offset); + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +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_CARD_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_CARD_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_SOURCE_OUTPUT_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_SET_SOURCE_OUTPUT_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___OBSOLETE] = NULL, + [PA_COMMAND_GET_AUTOLOAD_INFO_LIST___OBSOLETE] = NULL, + [PA_COMMAND_ADD_AUTOLOAD___OBSOLETE] = NULL, + [PA_COMMAND_REMOVE_AUTOLOAD___OBSOLETE] = NULL, + + [PA_COMMAND_MOVE_SINK_INPUT] = command_move_stream, + [PA_COMMAND_MOVE_SOURCE_OUTPUT] = command_move_stream, + + [PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr, + [PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR] = command_set_stream_buffer_attr, + + [PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate, + [PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE] = command_update_stream_sample_rate, + + [PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST] = command_update_proplist, + [PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST] = command_update_proplist, + [PA_COMMAND_UPDATE_CLIENT_PROPLIST] = command_update_proplist, + + [PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST] = command_remove_proplist, + [PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST] = command_remove_proplist, + [PA_COMMAND_REMOVE_CLIENT_PROPLIST] = command_remove_proplist, + + [PA_COMMAND_SET_CARD_PROFILE] = command_set_card_profile, + + [PA_COMMAND_SET_SINK_PORT] = command_set_sink_or_source_port, + [PA_COMMAND_SET_SOURCE_PORT] = command_set_sink_or_source_port, + + [PA_COMMAND_SET_PORT_LATENCY_OFFSET] = command_set_port_latency_offset, + + [PA_COMMAND_ENABLE_SRBCHANNEL] = command_enable_srbchannel, + + [PA_COMMAND_REGISTER_MEMFD_SHMID] = command_register_memfd_shmid, + + [PA_COMMAND_EXTENSION] = command_extension +}; + +/*** pstream callbacks ***/ + +static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, pa_cmsg_ancil_data *ancil_data, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + + pa_assert(p); + pa_assert(packet); + pa_native_connection_assert_ref(c); + + if (pa_pdispatch_run(c->pdispatch, packet, ancil_data, c) < 0) { + pa_log("invalid packet."); + native_connection_unlink(c); + } +} + +static void pstream_memblock_callback(pa_pstream *p, uint32_t channel, int64_t offset, pa_seek_mode_t seek, const pa_memchunk *chunk, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + output_stream *stream; + + pa_assert(p); + pa_assert(chunk); + pa_native_connection_assert_ref(c); + + if (!(stream = OUTPUT_STREAM(pa_idxset_get_by_index(c->output_streams, channel)))) { + pa_log_debug("Client sent block for invalid stream."); + /* Ignoring */ + return; + } + +#ifdef PROTOCOL_NATIVE_DEBUG + pa_log("got %lu bytes from client", (unsigned long) chunk->length); +#endif + + if (playback_stream_isinstance(stream)) { + playback_stream *ps = PLAYBACK_STREAM(stream); + + size_t frame_size = pa_frame_size(&ps->sink_input->sample_spec); + if (chunk->index % frame_size != 0 || chunk->length % frame_size != 0) { + pa_log_warn("Client sent non-aligned memblock: index %d, length %d, frame size: %d", + (int) chunk->index, (int) chunk->length, (int) frame_size); + return; + } + + pa_atomic_inc(&ps->seek_or_post_in_queue); + if (chunk->memblock) { + 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, chunk, NULL); + else + pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, chunk, NULL); + } else + pa_asyncmsgq_post(ps->sink_input->sink->asyncmsgq, PA_MSGOBJECT(ps->sink_input), SINK_INPUT_MESSAGE_SEEK, PA_UINT_TO_PTR(seek), offset+chunk->length, NULL, NULL); + + } else { + upload_stream *u = UPLOAD_STREAM(stream); + size_t l; + + if (!u->memchunk.memblock) { + if (u->length == chunk->length && chunk->memblock) { + 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 *dst; + dst = pa_memblock_acquire(u->memchunk.memblock); + + if (chunk->memblock) { + void *src; + 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(chunk->memblock); + } else + pa_silence_memory((uint8_t*) dst + u->memchunk.index + u->memchunk.length, l, &u->sample_spec); + + pa_memblock_release(u->memchunk.memblock); + + u->memchunk.length += l; + u->length -= l; + } + } +} + +static void pstream_die_callback(pa_pstream *p, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + + pa_assert(p); + pa_native_connection_assert_ref(c); + + native_connection_unlink(c); + pa_log_info("Connection died."); +} + +static void pstream_drain_callback(pa_pstream *p, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + + pa_assert(p); + pa_native_connection_assert_ref(c); + + native_connection_send_memblock(c); +} + +static void pstream_revoke_callback(pa_pstream *p, uint32_t block_id, void *userdata) { + pa_thread_mq *q; + + if (!(q = pa_thread_mq_get())) + pa_pstream_send_revoke(p, block_id); + else + pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL); +} + +static void pstream_release_callback(pa_pstream *p, uint32_t block_id, void *userdata) { + pa_thread_mq *q; + + if (!(q = pa_thread_mq_get())) + pa_pstream_send_release(p, block_id); + else + pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_RELEASE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL); +} + +/*** client callbacks ***/ + +static void client_kill_cb(pa_client *c) { + pa_assert(c); + + native_connection_unlink(PA_NATIVE_CONNECTION(c->userdata)); + pa_log_info("Connection killed."); +} + +static void client_send_event_cb(pa_client *client, const char*event, pa_proplist *pl) { + pa_tagstruct *t; + pa_native_connection *c; + + pa_assert(client); + c = PA_NATIVE_CONNECTION(client->userdata); + pa_native_connection_assert_ref(c); + + if (c->version < 15) + return; + + t = pa_tagstruct_new(); + pa_tagstruct_putu32(t, PA_COMMAND_CLIENT_EVENT); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_puts(t, event); + pa_tagstruct_put_proplist(t, pl); + pa_pstream_send_tagstruct(c->pstream, t); +} + +/*** module entry points ***/ + +static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *t, void *userdata) { + pa_native_connection *c = PA_NATIVE_CONNECTION(userdata); + + pa_assert(m); + pa_native_connection_assert_ref(c); + pa_assert(c->auth_timeout_event == e); + + if (!c->authorized) { + native_connection_unlink(c); + pa_log_info("Connection terminated due to authentication timeout."); + } +} + +void pa_native_protocol_connect(pa_native_protocol *p, pa_iochannel *io, pa_native_options *o) { + pa_native_connection *c; + char pname[128]; + pa_client *client; + pa_client_new_data data; + + pa_assert(p); + pa_assert(io); + pa_assert(o); + + if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { + pa_log_warn("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_iochannel_free(io); + return; + } + + pa_client_new_data_init(&data); + data.module = o->module; + data.driver = __FILE__; + pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname)); + pa_proplist_setf(data.proplist, PA_PROP_APPLICATION_NAME, "Native client (%s)", pname); + pa_proplist_sets(data.proplist, "native-protocol.peer", pname); + client = pa_client_new(p->core, &data); + pa_client_new_data_done(&data); + + if (!client) + return; + + c = pa_msgobject_new(pa_native_connection); + c->parent.parent.free = native_connection_free; + c->parent.process_msg = native_connection_process_msg; + c->protocol = p; + c->options = pa_native_options_ref(o); + c->authorized = false; + c->srbpending = NULL; + + if (o->auth_anonymous) { + pa_log_info("Client authenticated anonymously."); + c->authorized = true; + } + + if (!c->authorized && + o->auth_ip_acl && + pa_ip_acl_check(o->auth_ip_acl, pa_iochannel_get_recv_fd(io)) > 0) { + + pa_log_info("Client authenticated by IP ACL."); + c->authorized = true; + } + + if (!c->authorized) + c->auth_timeout_event = pa_core_rttime_new(p->core, pa_rtclock_now() + AUTH_TIMEOUT, auth_timeout, c); + else + c->auth_timeout_event = NULL; + + c->is_local = pa_iochannel_socket_is_local(io); + c->version = 8; + + c->client = client; + c->client->kill = client_kill_cb; + c->client->send_event = client_send_event_cb; + c->client->userdata = c; + + c->rw_mempool = NULL; + + c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->mempool); + pa_pstream_set_receive_packet_callback(c->pstream, pstream_packet_callback, c); + pa_pstream_set_receive_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, true, command_table, PA_COMMAND_MAX); + + c->record_streams = pa_idxset_new(NULL, NULL); + c->output_streams = pa_idxset_new(NULL, NULL); + + c->rrobin_index = PA_IDXSET_INVALID; + c->subscription = NULL; + + pa_idxset_put(p->connections, c, NULL); + +#ifdef HAVE_CREDS + if (pa_iochannel_creds_supported(io)) + pa_iochannel_creds_enable(io); +#endif + + pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_CONNECTION_PUT], c); +} + +void pa_native_protocol_disconnect(pa_native_protocol *p, pa_module *m) { + pa_native_connection *c; + void *state = NULL; + + pa_assert(p); + pa_assert(m); + + while ((c = pa_idxset_iterate(p->connections, &state, NULL))) + if (c->options->module == m) + native_connection_unlink(c); +} + +static pa_native_protocol* native_protocol_new(pa_core *c) { + pa_native_protocol *p; + pa_native_hook_t h; + + pa_assert(c); + + p = pa_xnew(pa_native_protocol, 1); + PA_REFCNT_INIT(p); + p->core = c; + p->connections = pa_idxset_new(NULL, NULL); + + p->servers = NULL; + + p->extensions = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + + for (h = 0; h < PA_NATIVE_HOOK_MAX; h++) + pa_hook_init(&p->hooks[h], p); + + pa_assert_se(pa_shared_set(c, "native-protocol", p) >= 0); + + return p; +} + +pa_native_protocol* pa_native_protocol_get(pa_core *c) { + pa_native_protocol *p; + + if ((p = pa_shared_get(c, "native-protocol"))) + return pa_native_protocol_ref(p); + + return native_protocol_new(c); +} + +pa_native_protocol* pa_native_protocol_ref(pa_native_protocol *p) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + + PA_REFCNT_INC(p); + + return p; +} + +void pa_native_protocol_unref(pa_native_protocol *p) { + pa_native_connection *c; + pa_native_hook_t h; + + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + + if (PA_REFCNT_DEC(p) > 0) + return; + + while ((c = pa_idxset_first(p->connections, NULL))) + native_connection_unlink(c); + + pa_idxset_free(p->connections, NULL); + + pa_strlist_free(p->servers); + + for (h = 0; h < PA_NATIVE_HOOK_MAX; h++) + pa_hook_done(&p->hooks[h]); + + pa_hashmap_free(p->extensions); + + pa_assert_se(pa_shared_remove(p->core, "native-protocol") >= 0); + + pa_xfree(p); +} + +void pa_native_protocol_add_server_string(pa_native_protocol *p, const char *name) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + pa_assert(name); + + p->servers = pa_strlist_prepend(p->servers, name); + + pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers); +} + +void pa_native_protocol_remove_server_string(pa_native_protocol *p, const char *name) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + pa_assert(name); + + p->servers = pa_strlist_remove(p->servers, name); + + pa_hook_fire(&p->hooks[PA_NATIVE_HOOK_SERVERS_CHANGED], p->servers); +} + +pa_hook *pa_native_protocol_hooks(pa_native_protocol *p) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + + return p->hooks; +} + +pa_strlist *pa_native_protocol_servers(pa_native_protocol *p) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + + return p->servers; +} + +int pa_native_protocol_install_ext(pa_native_protocol *p, pa_module *m, pa_native_protocol_ext_cb_t cb) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + pa_assert(m); + pa_assert(cb); + pa_assert(!pa_hashmap_get(p->extensions, m)); + + pa_assert_se(pa_hashmap_put(p->extensions, m, (void*) (unsigned long) cb) == 0); + return 0; +} + +void pa_native_protocol_remove_ext(pa_native_protocol *p, pa_module *m) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + pa_assert(m); + + pa_assert_se(pa_hashmap_remove(p->extensions, m)); +} + +pa_native_options* pa_native_options_new(void) { + pa_native_options *o; + + o = pa_xnew0(pa_native_options, 1); + PA_REFCNT_INIT(o); + + return o; +} + +pa_native_options* pa_native_options_ref(pa_native_options *o) { + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + PA_REFCNT_INC(o); + + return o; +} + +void pa_native_options_unref(pa_native_options *o) { + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (PA_REFCNT_DEC(o) > 0) + return; + + pa_xfree(o->auth_group); + + if (o->auth_ip_acl) + pa_ip_acl_free(o->auth_ip_acl); + + if (o->auth_cookie) + pa_auth_cookie_unref(o->auth_cookie); + + pa_xfree(o); +} + +int pa_native_options_parse(pa_native_options *o, pa_core *c, pa_modargs *ma) { + bool enabled; + const char *acl; + + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + pa_assert(ma); + + o->srbchannel = true; + if (pa_modargs_get_value_boolean(ma, "srbchannel", &o->srbchannel) < 0) { + pa_log("srbchannel= expects a boolean argument."); + return -1; + } + + if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &o->auth_anonymous) < 0) { + pa_log("auth-anonymous= expects a boolean argument."); + return -1; + } + + enabled = true; + if (pa_modargs_get_value_boolean(ma, "auth-group-enable", &enabled) < 0) { + pa_log("auth-group-enable= expects a boolean argument."); + return -1; + } + + pa_xfree(o->auth_group); + o->auth_group = enabled ? pa_xstrdup(pa_modargs_get_value(ma, "auth-group", pa_in_system_mode() ? PA_ACCESS_GROUP : NULL)) : NULL; + +#ifndef HAVE_CREDS + if (o->auth_group) + pa_log_warn("Authentication group configured, but not available on local system. Ignoring."); +#endif + + if ((acl = pa_modargs_get_value(ma, "auth-ip-acl", NULL))) { + pa_ip_acl *ipa; + + if (!(ipa = pa_ip_acl_new(acl))) { + pa_log("Failed to parse IP ACL '%s'", acl); + return -1; + } + + if (o->auth_ip_acl) + pa_ip_acl_free(o->auth_ip_acl); + + o->auth_ip_acl = ipa; + } + + enabled = true; + if (pa_modargs_get_value_boolean(ma, "auth-cookie-enabled", &enabled) < 0) { + pa_log("auth-cookie-enabled= expects a boolean argument."); + return -1; + } + + if (o->auth_cookie) + pa_auth_cookie_unref(o->auth_cookie); + + if (enabled) { + const char *cn; + + /* The new name for this is 'auth-cookie', for compat reasons + * we check the old name too */ + cn = pa_modargs_get_value(ma, "auth-cookie", NULL); + if (!cn) + cn = pa_modargs_get_value(ma, "cookie", NULL); + + if (cn) + o->auth_cookie = pa_auth_cookie_get(c, cn, true, PA_NATIVE_COOKIE_LENGTH); + else { + o->auth_cookie = pa_auth_cookie_get(c, PA_NATIVE_COOKIE_FILE, false, PA_NATIVE_COOKIE_LENGTH); + if (!o->auth_cookie) { + char *fallback_path; + + if (pa_append_to_home_dir(PA_NATIVE_COOKIE_FILE_FALLBACK, &fallback_path) >= 0) { + o->auth_cookie = pa_auth_cookie_get(c, fallback_path, false, PA_NATIVE_COOKIE_LENGTH); + pa_xfree(fallback_path); + } + + if (!o->auth_cookie) + o->auth_cookie = pa_auth_cookie_get(c, PA_NATIVE_COOKIE_FILE, true, PA_NATIVE_COOKIE_LENGTH); + } + } + + if (!o->auth_cookie) + return -1; + + } else + o->auth_cookie = NULL; + + return 0; +} + +pa_pstream* pa_native_connection_get_pstream(pa_native_connection *c) { + pa_native_connection_assert_ref(c); + + return c->pstream; +} + +pa_client* pa_native_connection_get_client(pa_native_connection *c) { + pa_native_connection_assert_ref(c); + + return c->client; +} |