pa_auth_cookie* pa_auth_cookie_get(pa_core *core, const char *cn, bool create, size_t size) {
pa_auth_cookie *c;
char *t;
pa_assert(core);
pa_assert(size > 0);
t = pa_sprintf_malloc("auth-cookie%s%s", cn ? "@" : "", cn ? cn : "");
if ((c = pa_shared_get(core, t))) {
pa_xfree(t);
if (c->size != size)
return NULL;
return pa_auth_cookie_ref(c);
}
c = pa_xmalloc(PA_ALIGN(sizeof(pa_auth_cookie)) + size);
PA_REFCNT_INIT(c);
c->core = core;
c->name = t;
c->size = size;
pa_assert_se(pa_shared_set(core, t, c) >= 0);
if (pa_authkey_load(cn, create, (uint8_t*) c + PA_ALIGN(sizeof(pa_auth_cookie)), size) < 0) {
pa_auth_cookie_unref(c);
return NULL;
}
return c;
}
/* If the specified file path starts with / return it, otherwise
* return path prepended with home directory */
static char *normalize_path(const char *fn) {
pa_assert(fn);
#ifndef OS_IS_WIN32
if (fn[0] != '/') {
#else
if (strlen(fn) < 3 || !IsCharAlpha(fn[0]) || fn[1] != ':' || fn[2] != '\\') {
#endif
char *homedir, *s;
if (!(homedir = pa_get_home_dir_malloc()))
return NULL;
s = pa_sprintf_malloc("%s" PA_PATH_SEP "%s", homedir, fn);
pa_xfree(homedir);
return s;
}
return pa_xstrdup(fn);
}
/* Load a cookie from a file in the home directory. If the specified
* path starts with /, use it as absolute path instead. */
int pa_authkey_load_auto(const char *fn, void *data, size_t length) {
char *p;
int ret;
pa_assert(fn);
pa_assert(data);
pa_assert(length > 0);
if (!(p = normalize_path(fn)))
return -2;
ret = pa_authkey_load(p, data, length);
pa_xfree(p);
return ret;
}
int main(int argc, char *argv[]) {
const char *dname = NULL, *sink = NULL, *source = NULL, *server = NULL, *cookie_file = PA_NATIVE_COOKIE_FILE;
int c, ret = 1, screen = 0;
xcb_connection_t *xcb = NULL;
enum { DUMP, EXPORT, IMPORT, REMOVE } mode = DUMP;
setlocale(LC_ALL, "");
#ifdef ENABLE_NLS
bindtextdomain(GETTEXT_PACKAGE, PULSE_LOCALEDIR);
#endif
while ((c = getopt(argc, argv, "deiD:S:O:I:c:hr")) != -1) {
switch (c) {
case 'D' :
dname = optarg;
break;
case 'h':
printf(_("%s [-D display] [-S server] [-O sink] [-I source] [-c file] [-d|-e|-i|-r]\n\n"
" -d Show current PulseAudio data attached to X11 display (default)\n"
" -e Export local PulseAudio data to X11 display\n"
" -i Import PulseAudio data from X11 display to local environment variables and cookie file.\n"
" -r Remove PulseAudio data from X11 display\n"),
pa_path_get_filename(argv[0]));
ret = 0;
goto finish;
case 'd':
mode = DUMP;
break;
case 'e':
mode = EXPORT;
break;
case 'i':
mode = IMPORT;
break;
case 'r':
mode = REMOVE;
break;
case 'c':
cookie_file = optarg;
break;
case 'I':
source = optarg;
break;
case 'O':
sink = optarg;
break;
case 'S':
server = optarg;
break;
default:
fprintf(stderr, _("Failed to parse command line.\n"));
goto finish;
}
}
if (!(xcb = xcb_connect(dname, &screen))) {
pa_log(_("xcb_connect() failed"));
goto finish;
}
if (xcb_connection_has_error(xcb)) {
pa_log(_("xcb_connection_has_error() returned true"));
goto finish;
}
switch (mode) {
case DUMP: {
char t[1024];
if (pa_x11_get_prop(xcb, screen, "PULSE_SERVER", t, sizeof(t)))
printf(_("Server: %s\n"), t);
if (pa_x11_get_prop(xcb, screen, "PULSE_SOURCE", t, sizeof(t)))
printf(_("Source: %s\n"), t);
if (pa_x11_get_prop(xcb, screen, "PULSE_SINK", t, sizeof(t)))
printf(_("Sink: %s\n"), t);
if (pa_x11_get_prop(xcb, screen, "PULSE_COOKIE", t, sizeof(t)))
printf(_("Cookie: %s\n"), t);
break;
}
case IMPORT: {
char t[1024];
if (pa_x11_get_prop(xcb, screen, "PULSE_SERVER", t, sizeof(t)))
printf("PULSE_SERVER='%s'\nexport PULSE_SERVER\n", t);
if (pa_x11_get_prop(xcb, screen, "PULSE_SOURCE", t, sizeof(t)))
printf("PULSE_SOURCE='%s'\nexport PULSE_SOURCE\n", t);
if (pa_x11_get_prop(xcb, screen, "PULSE_SINK", t, sizeof(t)))
printf("PULSE_SINK='%s'\nexport PULSE_SINK\n", t);
if (pa_x11_get_prop(xcb, screen, "PULSE_COOKIE", t, sizeof(t))) {
uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
size_t l;
if ((l = pa_parsehex(t, cookie, sizeof(cookie))) != sizeof(cookie)) {
fprintf(stderr, _("Failed to parse cookie data\n"));
goto finish;
}
if (pa_authkey_save(cookie_file, cookie, l) < 0) {
fprintf(stderr, _("Failed to save cookie data\n"));
goto finish;
}
}
break;
}
case EXPORT: {
pa_client_conf *conf = pa_client_conf_new();
uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
char hx[PA_NATIVE_COOKIE_LENGTH*2+1];
assert(conf);
pa_client_conf_load(conf, false, true);
pa_x11_del_prop(xcb, screen, "PULSE_SERVER");
pa_x11_del_prop(xcb, screen, "PULSE_SINK");
pa_x11_del_prop(xcb, screen, "PULSE_SOURCE");
pa_x11_del_prop(xcb, screen, "PULSE_ID");
pa_x11_del_prop(xcb, screen, "PULSE_COOKIE");
if (server)
pa_x11_set_prop(xcb, screen, "PULSE_SERVER", server);
else if (conf->default_server)
pa_x11_set_prop(xcb, screen, "PULSE_SERVER", conf->default_server);
else {
char hn[256];
if (!pa_get_fqdn(hn, sizeof(hn))) {
fprintf(stderr, _("Failed to get FQDN.\n"));
goto finish;
}
pa_x11_set_prop(xcb, screen, "PULSE_SERVER", hn);
}
if (sink)
pa_x11_set_prop(xcb, screen, "PULSE_SINK", sink);
else if (conf->default_sink)
pa_x11_set_prop(xcb, screen, "PULSE_SINK", conf->default_sink);
if (source)
pa_x11_set_prop(xcb, screen, "PULSE_SOURCE", source);
if (conf->default_source)
pa_x11_set_prop(xcb, screen, "PULSE_SOURCE", conf->default_source);
pa_client_conf_free(conf);
if (pa_authkey_load(cookie_file, true, cookie, sizeof(cookie)) < 0) {
fprintf(stderr, _("Failed to load cookie data\n"));
goto finish;
}
pa_x11_set_prop(xcb, screen, "PULSE_COOKIE", pa_hexstr(cookie, sizeof(cookie), hx, sizeof(hx)));
break;
}
case REMOVE:
pa_x11_del_prop(xcb, screen, "PULSE_SERVER");
pa_x11_del_prop(xcb, screen, "PULSE_SINK");
pa_x11_del_prop(xcb, screen, "PULSE_SOURCE");
pa_x11_del_prop(xcb, screen, "PULSE_ID");
pa_x11_del_prop(xcb, screen, "PULSE_COOKIE");
pa_x11_del_prop(xcb, screen, "PULSE_SESSION_ID");
break;
default:
fprintf(stderr, _("Not yet implemented.\n"));
goto finish;
}
ret = 0;
finish:
if (xcb) {
xcb_flush(xcb);
xcb_disconnect(xcb);
}
return ret;
}
int pa__init(pa_module*m) {
struct userdata *u = NULL;
pa_sample_spec ss;
pa_modargs *ma = NULL;
const char *espeaker;
uint32_t key;
pa_sink_new_data data;
char *cookie_path;
int r;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments");
goto fail;
}
ss = m->core->default_sample_spec;
if (pa_modargs_get_sample_spec(ma, &ss) < 0) {
pa_log("invalid sample format specification");
goto fail;
}
if ((ss.format != PA_SAMPLE_U8 && ss.format != PA_SAMPLE_S16NE) ||
(ss.channels > 2)) {
pa_log("esound sample type support is limited to mono/stereo and U8 or S16NE sample data");
goto fail;
}
u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
m->userdata = u;
u->fd = -1;
u->smoother = pa_smoother_new(
PA_USEC_PER_SEC,
PA_USEC_PER_SEC*2,
true,
true,
10,
0,
false);
pa_memchunk_reset(&u->memchunk);
u->offset = 0;
u->rtpoll = pa_rtpoll_new();
if (pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll) < 0) {
pa_log("pa_thread_mq_init() failed.");
goto fail;
}
u->rtpoll_item = NULL;
u->format =
(ss.format == PA_SAMPLE_U8 ? ESD_BITS8 : ESD_BITS16) |
(ss.channels == 2 ? ESD_STEREO : ESD_MONO);
u->rate = (int32_t) ss.rate;
u->block_size = pa_usec_to_bytes(PA_USEC_PER_SEC/20, &ss);
u->read_data = u->write_data = NULL;
u->read_index = u->write_index = u->read_length = u->write_length = 0;
u->state = STATE_AUTH;
u->latency = 0;
if (!(espeaker = getenv("ESPEAKER")))
espeaker = ESD_UNIX_SOCKET_NAME;
espeaker = pa_modargs_get_value(ma, "server", espeaker);
pa_sink_new_data_init(&data);
data.driver = __FILE__;
data.module = m;
pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
pa_sink_new_data_set_sample_spec(&data, &ss);
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, espeaker);
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_API, "esd");
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "EsounD Output on %s", espeaker);
if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_sink_new_data_done(&data);
goto fail;
}
u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_NETWORK);
pa_sink_new_data_done(&data);
if (!u->sink) {
pa_log("Failed to create sink.");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg;
u->sink->set_state_in_io_thread = sink_set_state_in_io_thread_cb;
u->sink->userdata = u;
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
if (!(u->client = pa_socket_client_new_string(u->core->mainloop, true, espeaker, ESD_DEFAULT_PORT))) {
pa_log("Failed to connect to server.");
goto fail;
}
pa_socket_client_set_callback(u->client, on_connection, u);
cookie_path = pa_xstrdup(pa_modargs_get_value(ma, "cookie", NULL));
if (!cookie_path) {
if (pa_append_to_home_dir(".esd_auth", &cookie_path) < 0)
goto fail;
}
/* Prepare the initial request */
u->write_data = pa_xmalloc(u->write_length = ESD_KEY_LEN + sizeof(int32_t));
r = pa_authkey_load(cookie_path, true, u->write_data, ESD_KEY_LEN);
pa_xfree(cookie_path);
if (r < 0) {
pa_log("Failed to load cookie");
goto fail;
}
key = ESD_ENDIAN_KEY;
memcpy((uint8_t*) u->write_data + ESD_KEY_LEN, &key, sizeof(key));
/* Reserve space for the response */
u->read_data = pa_xmalloc(u->read_length = sizeof(int32_t));
if (!(u->thread = pa_thread_new("esound-sink", thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
pa_sink_put(u->sink);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
