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pulseaudio/src/pulsecore/protocol-native.c
Georg Chini 6f07cd10ec protocol-native: Add signal receiving capability 
This patch extends the client subscription API, so that signals sent from
PulseAudio can be processed. Within PulseAudio, a signal can be emitted
using pa_signal_post(). The interface can be used to notify the client of
events that are not covered by the subscription API (for example a button
press event on a bluetooth headset).

Setting up signal notification is very similar to using subscriptions.
First the client needs to subscribe with pa_context_subscribe_signals()
and then sets up a signal handler using pa_context_set_signal_callback().

The signal handler will receive three arguments in addition to the usual
context and userdata:
object_path - string that specifies the origin of the signal
signal - string that specifies the type of the signal
signal_parameters - optional string for additional information
2024-01-13 11:40:29 +01:00

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/***
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/message-handler.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;
uint64_t signal_mask;
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;
pa_hook_slot *signal_hook_slot;
};
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_get_base(r->memblockq));
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);
/* Add resampler latency */
s->current_sink_latency += pa_resampler_get_delay_usec(i->thread_info.resampler);
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);
/* Add resampler latency */
s->current_source_latency += pa_resampler_get_delay_usec(o->thread_info.resampler);
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, 0);
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_signal_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
uint64_t m;
pa_native_connection_assert_ref(c);
pa_assert(t);
if (pa_tagstruct_getu64(t, &m) < 0 ||
!pa_tagstruct_eof(t)) {
protocol_error(c);
return;
}
CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
c->signal_mask = m;
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) || pa_safe_streq(s,"@NONE@"), tag, PA_ERR_INVALID);
if (command == PA_COMMAND_SET_DEFAULT_SOURCE) {
char *source_name = NULL;
if (!pa_safe_streq(s,"@NONE@")) {
pa_source *source;
source = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SOURCE);
CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY);
source_name = source->name;
}
pa_core_set_configured_default_source(c->protocol->core, source_name);
} else {
char *sink_name = NULL;
pa_assert(command == PA_COMMAND_SET_DEFAULT_SINK);
if (!pa_safe_streq(s,"@NONE@")) {
pa_sink *sink;
sink = pa_namereg_get(c->protocol->core, s, PA_NAMEREG_SINK);
CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY);
sink_name = sink->name;
}
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_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);
}
/* Send message to an object which registered a handler. Result must be returned as string. */
static void command_send_object_message(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
pa_native_connection *c = PA_NATIVE_CONNECTION(userdata);
const char *object_path = NULL;
const char *message = NULL;
const char *message_parameters = NULL;
const char *client_name;
char *response = NULL;
int ret;
pa_tagstruct *reply;
pa_native_connection_assert_ref(c);
pa_assert(t);
if (pa_tagstruct_gets(t, &object_path) < 0 ||
pa_tagstruct_gets(t, &message) < 0 ||
pa_tagstruct_gets(t, &message_parameters) < 0 ||
!pa_tagstruct_eof(t)) {
protocol_error(c);
return;
}
CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS);
CHECK_VALIDITY(c->pstream, object_path != NULL, tag, PA_ERR_INVALID);
CHECK_VALIDITY(c->pstream, pa_utf8_valid(object_path), tag, PA_ERR_INVALID);
CHECK_VALIDITY(c->pstream, message != NULL, tag, PA_ERR_INVALID);
CHECK_VALIDITY(c->pstream, pa_utf8_valid(message), tag, PA_ERR_INVALID);
if (message_parameters)
CHECK_VALIDITY(c->pstream, pa_utf8_valid(message_parameters), tag, PA_ERR_INVALID);
client_name = pa_strnull(pa_proplist_gets(c->client->proplist, PA_PROP_APPLICATION_PROCESS_BINARY));
pa_log_debug("Client %s sent message %s to path %s", client_name, message, object_path);
if (message_parameters)
pa_log_debug("Message parameters: %s", message_parameters);
ret = pa_message_handler_send_message(c->protocol->core, object_path, message, message_parameters, &response);
if (ret < 0) {
pa_pstream_send_error(c->pstream, tag, -ret);
return;
}
reply = reply_new(tag);
pa_tagstruct_puts(reply, response);
pa_xfree(response);
pa_pstream_send_tagstruct(c->pstream, reply);
}
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_SUBSCRIBE_SIGNALS] = command_signal_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_SEND_OBJECT_MESSAGE] = command_send_object_message,
[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->length % frame_size != 0) {
pa_log_warn("Client sent non-aligned memblock: length %d, frame size: %d",
(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_hook_result_t native_protocol_signal_hook(pa_core *core, struct pa_signal_descriptor *sd, pa_native_protocol *p) {
pa_native_connection *c;
uint32_t idx;
pa_assert(p);
pa_assert(sd);
PA_IDXSET_FOREACH(c, p->connections, idx) {
if (sd->facility & c->signal_mask) {
pa_tagstruct *t;
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, PA_SUBSCRIPTION_EVENT_SIGNAL);
pa_tagstruct_puts(t, sd->object_path);
pa_tagstruct_puts(t, sd->signal);
pa_tagstruct_puts(t, sd->parameters);
pa_pstream_send_tagstruct(c->pstream, t);
}
}
return PA_HOOK_OK;
}
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);
p->signal_hook_slot = pa_hook_connect(&c->hooks[PA_CORE_HOOK_SEND_SIGNAL], PA_HOOK_NORMAL, (pa_hook_cb_t) native_protocol_signal_hook, 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);
if (p->signal_hook_slot)
pa_hook_slot_free(p->signal_hook_slot);
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, 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;
}
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