code.delx.au - pulseaudio/blob - src/daemon/daemon-conf.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <errno.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <unistd.h>
  33
  34 #include <pulse/xmalloc.h>
  35
  36 #include <pulsecore/core-error.h>
  37 #include <pulsecore/core-util.h>
  38 #include <pulsecore/strbuf.h>
  39 #include <pulsecore/conf-parser.h>
  40 #include <pulsecore/resampler.h>
  41 #include <pulsecore/macro.h>
  42
  43 #include "daemon-conf.h"
  44
  45 #ifndef OS_IS_WIN32
  46 # define PATH_SEP "/"
  47 #else
  48 # define PATH_SEP "\\"
  49 #endif
  50
  51 #define DEFAULT_SCRIPT_FILE PA_DEFAULT_CONFIG_DIR PATH_SEP "default.pa"
  52 #define DEFAULT_SCRIPT_FILE_USER PATH_SEP "default.pa"
  53 #define DEFAULT_CONFIG_FILE PA_DEFAULT_CONFIG_DIR PATH_SEP "daemon.conf"
  54 #define DEFAULT_CONFIG_FILE_USER PATH_SEP "daemon.conf"
  55
  56 #define ENV_SCRIPT_FILE "PULSE_SCRIPT"
  57 #define ENV_CONFIG_FILE "PULSE_CONFIG"
  58 #define ENV_DL_SEARCH_PATH "PULSE_DLPATH"
  59
  60 static const pa_daemon_conf default_conf = {
  61     .cmd = PA_CMD_DAEMON,
  62     .daemonize = 0,
  63     .fail = 1,
  64     .high_priority = 0,
  65     .disallow_module_loading = 0,
  66     .exit_idle_time = -1,
  67     .module_idle_time = 20,
  68     .scache_idle_time = 20,
  69     .auto_log_target = 1,
  70     .script_commands = NULL,
  71     .dl_search_path = NULL,
  72     .default_script_file = NULL,
  73     .log_target = PA_LOG_SYSLOG,
  74     .log_level = PA_LOG_NOTICE,
  75     .resample_method = PA_RESAMPLER_AUTO,
  76     .config_file = NULL,
  77     .use_pid_file = 1,
  78     .system_instance = 0,
  79     .no_cpu_limit = 0,
  80     .disable_shm = 0,
  81     .default_n_fragments = 4,
  82     .default_fragment_size_msec = 25,
  83     .default_sample_spec = { .format = PA_SAMPLE_S16NE, .rate = 44100, .channels = 2 }
  84 #ifdef HAVE_SYS_RESOURCE_H
  85     , .rlimit_as = { .value = 0, .is_set = 0 },
  86     .rlimit_core = { .value = 0, .is_set = 0 },
  87     .rlimit_data = { .value = 0, .is_set = 0 },
  88     .rlimit_fsize = { .value = 0, .is_set = 0 },
  89     .rlimit_nofile = { .value = 256, .is_set = 1 },
  90     .rlimit_stack = { .value = 0, .is_set = 0 }
  91 #ifdef RLIMIT_NPROC
  92     , .rlimit_nproc = { .value = 0, .is_set = 0 }
  93 #endif
  94 #ifdef RLIMIT_MEMLOCK
  95     , .rlimit_memlock = { .value = 16384, .is_set = 1 }
  96 #endif
  97 #endif
  98 };
  99
 100 pa_daemon_conf* pa_daemon_conf_new(void) {
 101     FILE *f;
 102     pa_daemon_conf *c = pa_xnewdup(pa_daemon_conf, &default_conf, 1);
 103
 104     if ((f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file, "r")))
 105         fclose(f);
 106
 107     c->dl_search_path = pa_xstrdup(PA_DLSEARCHPATH);
 108     return c;
 109 }
 110
 111 void pa_daemon_conf_free(pa_daemon_conf *c) {
 112     pa_assert(c);
 113     pa_xfree(c->script_commands);
 114     pa_xfree(c->dl_search_path);
 115     pa_xfree(c->default_script_file);
 116     pa_xfree(c->config_file);
 117     pa_xfree(c);
 118 }
 119
 120 int pa_daemon_conf_set_log_target(pa_daemon_conf *c, const char *string) {
 121     pa_assert(c);
 122     pa_assert(string);
 123
 124     if (!strcmp(string, "auto"))
 125         c->auto_log_target = 1;
 126     else if (!strcmp(string, "syslog")) {
 127         c->auto_log_target = 0;
 128         c->log_target = PA_LOG_SYSLOG;
 129     } else if (!strcmp(string, "stderr")) {
 130         c->auto_log_target = 0;
 131         c->log_target = PA_LOG_STDERR;
 132     } else
 133         return -1;
 134
 135     return 0;
 136 }
 137
 138 int pa_daemon_conf_set_log_level(pa_daemon_conf *c, const char *string) {
 139     uint32_t u;
 140     pa_assert(c);
 141     pa_assert(string);
 142
 143     if (pa_atou(string, &u) >= 0) {
 144         if (u >= PA_LOG_LEVEL_MAX)
 145             return -1;
 146
 147         c->log_level = (pa_log_level_t) u;
 148     } else if (pa_startswith(string, "debug"))
 149         c->log_level = PA_LOG_DEBUG;
 150     else if (pa_startswith(string, "info"))
 151         c->log_level = PA_LOG_INFO;
 152     else if (pa_startswith(string, "notice"))
 153         c->log_level = PA_LOG_NOTICE;
 154     else if (pa_startswith(string, "warn"))
 155         c->log_level = PA_LOG_WARN;
 156     else if (pa_startswith(string, "err"))
 157         c->log_level = PA_LOG_ERROR;
 158     else
 159         return -1;
 160
 161     return 0;
 162 }
 163
 164 int pa_daemon_conf_set_resample_method(pa_daemon_conf *c, const char *string) {
 165     int m;
 166     pa_assert(c);
 167     pa_assert(string);
 168
 169     if ((m = pa_parse_resample_method(string)) < 0)
 170         return -1;
 171
 172     c->resample_method = m;
 173     return 0;
 174 }
 175
 176 static int parse_log_target(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 177     pa_daemon_conf *c = data;
 178
 179     pa_assert(filename);
 180     pa_assert(lvalue);
 181     pa_assert(rvalue);
 182     pa_assert(data);
 183
 184     if (pa_daemon_conf_set_log_target(c, rvalue) < 0) {
 185         pa_log("[%s:%u] Invalid log target '%s'.", filename, line, rvalue);
 186         return -1;
 187     }
 188
 189     return 0;
 190 }
 191
 192 static int parse_log_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 193     pa_daemon_conf *c = data;
 194
 195     pa_assert(filename);
 196     pa_assert(lvalue);
 197     pa_assert(rvalue);
 198     pa_assert(data);
 199
 200     if (pa_daemon_conf_set_log_level(c, rvalue) < 0) {
 201         pa_log("[%s:%u] Invalid log level '%s'.", filename, line, rvalue);
 202         return -1;
 203     }
 204
 205     return 0;
 206 }
 207
 208 static int parse_resample_method(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 209     pa_daemon_conf *c = data;
 210
 211     pa_assert(filename);
 212     pa_assert(lvalue);
 213     pa_assert(rvalue);
 214     pa_assert(data);
 215
 216     if (pa_daemon_conf_set_resample_method(c, rvalue) < 0) {
 217         pa_log("[%s:%u] Invalid resample method '%s'.", filename, line, rvalue);
 218         return -1;
 219     }
 220
 221     return 0;
 222 }
 223
 224 static int parse_rlimit(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 225 #ifdef HAVE_SYS_RESOURCE_H
 226     struct pa_rlimit *r = data;
 227
 228     pa_assert(filename);
 229     pa_assert(lvalue);
 230     pa_assert(rvalue);
 231     pa_assert(r);
 232
 233     if (rvalue[strspn(rvalue, "\t ")] == 0) {
 234         /* Empty string */
 235         r->is_set = 0;
 236         r->value = 0;
 237     } else {
 238         int32_t k;
 239         if (pa_atoi(rvalue, &k) < 0) {
 240             pa_log("[%s:%u] Invalid rlimit '%s'.", filename, line, rvalue);
 241             return -1;
 242         }
 243         r->is_set = k >= 0;
 244         r->value = k >= 0 ? (rlim_t) k : 0;
 245     }
 246 #else
 247     pa_log_warn("[%s:%u] rlimit not supported on this platform.", filename, line);
 248 #endif
 249
 250     return 0;
 251 }
 252
 253 static int parse_sample_format(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 254     pa_daemon_conf *c = data;
 255     pa_sample_format_t f;
 256
 257     pa_assert(filename);
 258     pa_assert(lvalue);
 259     pa_assert(rvalue);
 260     pa_assert(data);
 261
 262     if ((f = pa_parse_sample_format(rvalue)) < 0) {
 263         pa_log("[%s:%u] Invalid sample format '%s'.", filename, line, rvalue);
 264         return -1;
 265     }
 266
 267     c->default_sample_spec.format = f;
 268     return 0;
 269 }
 270
 271 static int parse_sample_rate(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 272     pa_daemon_conf *c = data;
 273     int32_t r;
 274
 275     pa_assert(filename);
 276     pa_assert(lvalue);
 277     pa_assert(rvalue);
 278     pa_assert(data);
 279
 280     if (pa_atoi(rvalue, &r) < 0 || r > PA_RATE_MAX || r <= 0) {
 281         pa_log("[%s:%u] Invalid sample rate '%s'.", filename, line, rvalue);
 282         return -1;
 283     }
 284
 285     c->default_sample_spec.rate = r;
 286     return 0;
 287 }
 288
 289 static int parse_sample_channels(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 290     pa_daemon_conf *c = data;
 291     int32_t n;
 292
 293     pa_assert(filename);
 294     pa_assert(lvalue);
 295     pa_assert(rvalue);
 296     pa_assert(data);
 297
 298     if (pa_atoi(rvalue, &n) < 0 || n > PA_CHANNELS_MAX || n <= 0) {
 299         pa_log("[%s:%u] Invalid sample channels '%s'.", filename, line, rvalue);
 300         return -1;
 301     }
 302
 303     c->default_sample_spec.channels = (uint8_t) n;
 304     return 0;
 305 }
 306
 307 static int parse_fragments(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 308     pa_daemon_conf *c = data;
 309     int32_t n;
 310
 311     pa_assert(filename);
 312     pa_assert(lvalue);
 313     pa_assert(rvalue);
 314     pa_assert(data);
 315
 316     if (pa_atoi(rvalue, &n) < 0 || n < 2) {
 317         pa_log("[%s:%u] Invalid number of fragments '%s'.", filename, line, rvalue);
 318         return -1;
 319     }
 320
 321     c->default_n_fragments = (unsigned) n;
 322     return 0;
 323 }
 324
 325 static int parse_fragment_size_msec(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 326     pa_daemon_conf *c = data;
 327     int32_t n;
 328
 329     pa_assert(filename);
 330     pa_assert(lvalue);
 331     pa_assert(rvalue);
 332     pa_assert(data);
 333
 334     if (pa_atoi(rvalue, &n) < 0 || n < 1) {
 335         pa_log("[%s:%u] Invalid fragment size '%s'.", filename, line, rvalue);
 336         return -1;
 337     }
 338
 339     c->default_fragment_size_msec = (unsigned) n;
 340     return 0;
 341 }
 342
 343 int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
 344     int r = -1;
 345     FILE *f = NULL;
 346
 347     pa_config_item table[] = {
 348         { "daemonize",                  pa_config_parse_bool,     NULL },
 349         { "fail",                       pa_config_parse_bool,     NULL },
 350         { "high-priority",              pa_config_parse_bool,     NULL },
 351         { "disallow-module-loading",    pa_config_parse_bool,     NULL },
 352         { "exit-idle-time",             pa_config_parse_int,      NULL },
 353         { "module-idle-time",           pa_config_parse_int,      NULL },
 354         { "scache-idle-time",           pa_config_parse_int,      NULL },
 355         { "dl-search-path",             pa_config_parse_string,   NULL },
 356         { "default-script-file",        pa_config_parse_string,   NULL },
 357         { "log-target",                 parse_log_target,         NULL },
 358         { "log-level",                  parse_log_level,          NULL },
 359         { "verbose",                    parse_log_level,          NULL },
 360         { "resample-method",            parse_resample_method,    NULL },
 361         { "use-pid-file",               pa_config_parse_bool,     NULL },
 362         { "system-instance",            pa_config_parse_bool,     NULL },
 363         { "no-cpu-limit",               pa_config_parse_bool,     NULL },
 364         { "disable-shm",                pa_config_parse_bool,     NULL },
 365         { "default-sample-format",      parse_sample_format,      NULL },
 366         { "default-sample-rate",        parse_sample_rate,        NULL },
 367         { "default-sample-channels",    parse_sample_channels,    NULL },
 368         { "default-fragments",          parse_fragments,          NULL },
 369         { "default-fragment-size-msec", parse_fragment_size_msec, NULL },
 370 #ifdef HAVE_SYS_RESOURCE_H
 371         { "rlimit-as",                  parse_rlimit,             NULL },
 372         { "rlimit-core",                parse_rlimit,             NULL },
 373         { "rlimit-data",                parse_rlimit,             NULL },
 374         { "rlimit-fsize",               parse_rlimit,             NULL },
 375         { "rlimit-nofile",              parse_rlimit,             NULL },
 376         { "rlimit-stack",               parse_rlimit,             NULL },
 377 #ifdef RLIMIT_NPROC
 378         { "rlimit-nproc",               parse_rlimit,             NULL },
 379 #endif
 380 #ifdef RLIMIT_MEMLOCK
 381         { "rlimit-memlock",             parse_rlimit,             NULL },
 382 #endif
 383 #endif
 384         { NULL,                         NULL,                     NULL },
 385     };
 386
 387     table[0].data = &c->daemonize;
 388     table[1].data = &c->fail;
 389     table[2].data = &c->high_priority;
 390     table[3].data = &c->disallow_module_loading;
 391     table[4].data = &c->exit_idle_time;
 392     table[5].data = &c->module_idle_time;
 393     table[6].data = &c->scache_idle_time;
 394     table[7].data = &c->dl_search_path;
 395     table[8].data = &c->default_script_file;
 396     table[9].data = c;
 397     table[10].data = c;
 398     table[11].data = c;
 399     table[12].data = c;
 400     table[13].data = &c->use_pid_file;
 401     table[14].data = &c->system_instance;
 402     table[15].data = &c->no_cpu_limit;
 403     table[16].data = &c->disable_shm;
 404     table[17].data = c;
 405     table[18].data = c;
 406     table[19].data = c;
 407     table[20].data = c;
 408     table[21].data = c;
 409 #ifdef HAVE_SYS_RESOURCE_H
 410     table[22].data = &c->rlimit_as;
 411     table[23].data = &c->rlimit_core;
 412     table[24].data = &c->rlimit_data;
 413     table[25].data = &c->rlimit_fsize;
 414     table[26].data = &c->rlimit_nofile;
 415     table[27].data = &c->rlimit_stack;
 416 #ifdef RLIMIT_NPROC
 417     table[28].data = &c->rlimit_nproc;
 418 #endif
 419 #ifdef RLIMIT_MEMLOCK
 420 #ifndef RLIMIT_NPROC
 421 #error "Houston, we have a numbering problem!"
 422 #endif
 423     table[29].data = &c->rlimit_memlock;
 424 #endif
 425 #endif
 426
 427     pa_xfree(c->config_file);
 428     c->config_file = NULL;
 429
 430     f = filename ?
 431         fopen(c->config_file = pa_xstrdup(filename), "r") :
 432         pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file, "r");
 433
 434     if (!f && errno != ENOENT) {
 435         pa_log("WARNING: failed to open configuration file '%s': %s", c->config_file, pa_cstrerror(errno));
 436         goto finish;
 437     }
 438
 439     r = f ? pa_config_parse(c->config_file, f, table, NULL) : 0;
 440
 441 finish:
 442     if (f)
 443         fclose(f);
 444
 445     return r;
 446 }
 447
 448 int pa_daemon_conf_env(pa_daemon_conf *c) {
 449     char *e;
 450
 451     if ((e = getenv(ENV_DL_SEARCH_PATH))) {
 452         pa_xfree(c->dl_search_path);
 453         c->dl_search_path = pa_xstrdup(e);
 454     }
 455     if ((e = getenv(ENV_SCRIPT_FILE))) {
 456         pa_xfree(c->default_script_file);
 457         c->default_script_file = pa_xstrdup(e);
 458     }
 459
 460     return 0;
 461 }
 462
 463 static const char* const log_level_to_string[] = {
 464     [PA_LOG_DEBUG] = "debug",
 465     [PA_LOG_INFO] = "info",
 466     [PA_LOG_NOTICE] = "notice",
 467     [PA_LOG_WARN] = "warning",
 468     [PA_LOG_ERROR] = "error"
 469 };
 470
 471 char *pa_daemon_conf_dump(pa_daemon_conf *c) {
 472     pa_strbuf *s;
 473
 474     pa_assert(c);
 475
 476     s = pa_strbuf_new();
 477
 478     if (c->config_file)
 479         pa_strbuf_printf(s, "### Read from configuration file: %s ###\n", c->config_file);
 480
 481     pa_assert(c->log_level <= PA_LOG_LEVEL_MAX);
 482
 483     pa_strbuf_printf(s, "daemonize = %i\n", !!c->daemonize);
 484     pa_strbuf_printf(s, "fail = %i\n", !!c->fail);
 485     pa_strbuf_printf(s, "high-priority = %i\n", !!c->high_priority);
 486     pa_strbuf_printf(s, "disallow-module-loading = %i\n", !!c->disallow_module_loading);
 487     pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
 488     pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
 489     pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
 490     pa_strbuf_printf(s, "dl-search-path = %s\n", c->dl_search_path ? c->dl_search_path : "");
 491     pa_strbuf_printf(s, "default-script-file = %s\n", c->default_script_file);
 492     pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
 493     pa_strbuf_printf(s, "log-level = %s\n", log_level_to_string[c->log_level]);
 494     pa_strbuf_printf(s, "resample-method = %s\n", pa_resample_method_to_string(c->resample_method));
 495     pa_strbuf_printf(s, "use-pid-file = %i\n", c->use_pid_file);
 496     pa_strbuf_printf(s, "system-instance = %i\n", !!c->system_instance);
 497     pa_strbuf_printf(s, "no-cpu-limit = %i\n", !!c->no_cpu_limit);
 498     pa_strbuf_printf(s, "disable-shm = %i\n", !!c->disable_shm);
 499     pa_strbuf_printf(s, "default-sample-format = %s\n", pa_sample_format_to_string(c->default_sample_spec.format));
 500     pa_strbuf_printf(s, "default-sample-rate = %u\n", c->default_sample_spec.rate);
 501     pa_strbuf_printf(s, "default-sample-channels = %u\n", c->default_sample_spec.channels);
 502     pa_strbuf_printf(s, "default-fragments = %u\n", c->default_n_fragments);
 503     pa_strbuf_printf(s, "default-fragment-size-msec = %u\n", c->default_fragment_size_msec);
 504 #ifdef HAVE_SYS_RESOURCE_H
 505     pa_strbuf_printf(s, "rlimit-as = %li\n", c->rlimit_as.is_set ? (long int) c->rlimit_as.value : -1);
 506     pa_strbuf_printf(s, "rlimit-core = %li\n", c->rlimit_core.is_set ? (long int) c->rlimit_core.value : -1);
 507     pa_strbuf_printf(s, "rlimit-data = %li\n", c->rlimit_data.is_set ? (long int) c->rlimit_data.value : -1);
 508     pa_strbuf_printf(s, "rlimit-fsize = %li\n", c->rlimit_fsize.is_set ? (long int) c->rlimit_fsize.value : -1);
 509     pa_strbuf_printf(s, "rlimit-nofile = %li\n", c->rlimit_nofile.is_set ? (long int) c->rlimit_nofile.value : -1);
 510     pa_strbuf_printf(s, "rlimit-stack = %li\n", c->rlimit_stack.is_set ? (long int) c->rlimit_stack.value : -1);
 511 #ifdef RLIMIT_NPROC
 512     pa_strbuf_printf(s, "rlimit-nproc = %li\n", c->rlimit_nproc.is_set ? (long int) c->rlimit_nproc.value : -1);
 513 #endif
 514 #ifdef RLIMIT_MEMLOCK
 515     pa_strbuf_printf(s, "rlimit-memlock = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_memlock.value : -1);
 516 #endif
 517 #endif
 518
 519     return pa_strbuf_tostring_free(s);
 520 }