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 <assert.h>
  33 #include <unistd.h>
  34
  35 #include <pulse/xmalloc.h>
  36
  37 #include <pulsecore/core-error.h>
  38 #include <pulsecore/core-util.h>
  39 #include <pulsecore/strbuf.h>
  40 #include <pulsecore/conf-parser.h>
  41 #include <pulsecore/resampler.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_SRC_SINC_FASTEST,
  76     .config_file = NULL,
  77     .use_pid_file = 1,
  78     .system_instance = 0,
  79     .no_cpu_limit = 0,
  80     .disable_shm = 0
  81 #ifdef HAVE_SYS_RESOURCE_H
  82     , .rlimit_as = { .value = 0, .is_set = 0 },
  83     .rlimit_core = { .value = 0, .is_set = 0 },
  84     .rlimit_data = { .value = 0, .is_set = 0 },
  85     .rlimit_fsize = { .value = 0, .is_set = 0 },
  86     .rlimit_nofile = { .value = 200, .is_set = 1 },
  87     .rlimit_stack = { .value = 0, .is_set = 0 }
  88 #ifdef RLIMIT_NPROC
  89     , .rlimit_nproc = { .value = 0, .is_set = 0 }
  90 #endif
  91 #ifdef RLIMIT_MEMLOCK
  92     , .rlimit_memlock = { .value = 0, .is_set = 1 }
  93 #endif
  94 #endif
  95 };
  96
  97 pa_daemon_conf* pa_daemon_conf_new(void) {
  98     FILE *f;
  99     pa_daemon_conf *c = pa_xmemdup(&default_conf, sizeof(default_conf));
 100
 101     if ((f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file, "r")))
 102         fclose(f);
 103
 104     c->dl_search_path = pa_xstrdup(PA_DLSEARCHPATH);
 105     return c;
 106 }
 107
 108 void pa_daemon_conf_free(pa_daemon_conf *c) {
 109     assert(c);
 110     pa_xfree(c->script_commands);
 111     pa_xfree(c->dl_search_path);
 112     pa_xfree(c->default_script_file);
 113     pa_xfree(c->config_file);
 114     pa_xfree(c);
 115 }
 116
 117 int pa_daemon_conf_set_log_target(pa_daemon_conf *c, const char *string) {
 118     assert(c && string);
 119
 120     if (!strcmp(string, "auto"))
 121         c->auto_log_target = 1;
 122     else if (!strcmp(string, "syslog")) {
 123         c->auto_log_target = 0;
 124         c->log_target = PA_LOG_SYSLOG;
 125     } else if (!strcmp(string, "stderr")) {
 126         c->auto_log_target = 0;
 127         c->log_target = PA_LOG_STDERR;
 128     } else
 129         return -1;
 130
 131     return 0;
 132 }
 133
 134 int pa_daemon_conf_set_log_level(pa_daemon_conf *c, const char *string) {
 135     uint32_t u;
 136     assert(c && string);
 137
 138     if (pa_atou(string, &u) >= 0) {
 139         if (u >= PA_LOG_LEVEL_MAX)
 140             return -1;
 141
 142         c->log_level = (pa_log_level_t) u;
 143     } else if (pa_startswith(string, "debug"))
 144         c->log_level = PA_LOG_DEBUG;
 145     else if (pa_startswith(string, "info"))
 146         c->log_level = PA_LOG_INFO;
 147     else if (pa_startswith(string, "notice"))
 148         c->log_level = PA_LOG_NOTICE;
 149     else if (pa_startswith(string, "warn"))
 150         c->log_level = PA_LOG_WARN;
 151     else if (pa_startswith(string, "err"))
 152         c->log_level = PA_LOG_ERROR;
 153     else
 154         return -1;
 155
 156     return 0;
 157 }
 158
 159 int pa_daemon_conf_set_resample_method(pa_daemon_conf *c, const char *string) {
 160     int m;
 161     assert(c && string);
 162
 163     if ((m = pa_parse_resample_method(string)) < 0)
 164         return -1;
 165
 166     c->resample_method = m;
 167     return 0;
 168 }
 169
 170 static int parse_log_target(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 171     pa_daemon_conf *c = data;
 172     assert(filename && lvalue && rvalue && data);
 173
 174     if (pa_daemon_conf_set_log_target(c, rvalue) < 0) {
 175         pa_log("[%s:%u] Invalid log target '%s'.", filename, line, rvalue);
 176         return -1;
 177     }
 178
 179     return 0;
 180 }
 181
 182 static int parse_log_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 183     pa_daemon_conf *c = data;
 184     assert(filename && lvalue && rvalue && data);
 185
 186     if (pa_daemon_conf_set_log_level(c, rvalue) < 0) {
 187         pa_log("[%s:%u] Invalid log level '%s'.", filename, line, rvalue);
 188         return -1;
 189     }
 190
 191     return 0;
 192 }
 193
 194 static int parse_resample_method(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 195     pa_daemon_conf *c = data;
 196     assert(filename && lvalue && rvalue && data);
 197
 198     if (pa_daemon_conf_set_resample_method(c, rvalue) < 0) {
 199         pa_log("[%s:%u] Inavalid resample method '%s'.", filename, line, rvalue);
 200         return -1;
 201     }
 202
 203     return 0;
 204 }
 205
 206 static int parse_rlimit(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 207 #ifdef HAVE_SYS_RESOURCE_H
 208     struct pa_rlimit *r = data;
 209     assert(filename);
 210     assert(lvalue);
 211     assert(rvalue);
 212     assert(r);
 213
 214     if (rvalue[strspn(rvalue, "\t ")] == 0) {
 215         /* Empty string */
 216         r->is_set = 0;
 217         r->value = 0;
 218     } else {
 219         int32_t k;
 220         if (pa_atoi(rvalue, &k) < 0) {
 221             pa_log("[%s:%u] Inavalid rlimit '%s'.", filename, line, rvalue);
 222             return -1;
 223         }
 224         r->is_set = k >= 0;
 225         r->value = k >= 0 ? (rlim_t) k : 0;
 226     }
 227 #else
 228     pa_log_warn("[%s:%u] rlimit not supported on this platform.", filename, line);
 229 #endif
 230
 231     return 0;
 232 }
 233
 234 int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
 235     int r = -1;
 236     FILE *f = NULL;
 237
 238     pa_config_item table[] = {
 239         { "daemonize",               pa_config_parse_bool,    NULL },
 240         { "fail",                    pa_config_parse_bool,    NULL },
 241         { "high-priority",           pa_config_parse_bool,    NULL },
 242         { "disallow-module-loading", pa_config_parse_bool,    NULL },
 243         { "exit-idle-time",          pa_config_parse_int,     NULL },
 244         { "module-idle-time",        pa_config_parse_int,     NULL },
 245         { "scache-idle-time",        pa_config_parse_int,     NULL },
 246         { "dl-search-path",          pa_config_parse_string,  NULL },
 247         { "default-script-file",     pa_config_parse_string,  NULL },
 248         { "log-target",              parse_log_target,        NULL },
 249         { "log-level",               parse_log_level,         NULL },
 250         { "verbose",                 parse_log_level,         NULL },
 251         { "resample-method",         parse_resample_method,   NULL },
 252         { "use-pid-file",            pa_config_parse_bool,    NULL },
 253         { "system-instance",         pa_config_parse_bool,    NULL },
 254         { "no-cpu-limit",            pa_config_parse_bool,    NULL },
 255         { "disable-shm",             pa_config_parse_bool,    NULL },
 256 #ifdef HAVE_SYS_RESOURCE_H
 257         { "rlimit-as",               parse_rlimit,            NULL },
 258         { "rlimit-core",             parse_rlimit,            NULL },
 259         { "rlimit-data",             parse_rlimit,            NULL },
 260         { "rlimit-fsize",            parse_rlimit,            NULL },
 261         { "rlimit-nofile",           parse_rlimit,            NULL },
 262         { "rlimit-stack",            parse_rlimit,            NULL },
 263 #ifdef RLIMIT_NPROC
 264         { "rlimit-nproc",            parse_rlimit,            NULL },
 265 #endif
 266 #ifdef RLIMIT_MEMLOCK
 267         { "rlimit-memlock",          parse_rlimit,            NULL },
 268 #endif
 269 #endif
 270         { NULL,                      NULL,                    NULL },
 271     };
 272
 273     table[0].data = &c->daemonize;
 274     table[1].data = &c->fail;
 275     table[2].data = &c->high_priority;
 276     table[3].data = &c->disallow_module_loading;
 277     table[4].data = &c->exit_idle_time;
 278     table[5].data = &c->module_idle_time;
 279     table[6].data = &c->scache_idle_time;
 280     table[7].data = &c->dl_search_path;
 281     table[8].data = &c->default_script_file;
 282     table[9].data = c;
 283     table[10].data = c;
 284     table[11].data = c;
 285     table[12].data = c;
 286     table[13].data = &c->use_pid_file;
 287     table[14].data = &c->system_instance;
 288     table[15].data = &c->no_cpu_limit;
 289     table[16].data = &c->disable_shm;
 290 #ifdef HAVE_SYS_RESOURCE_H
 291     table[17].data = &c->rlimit_as;
 292     table[18].data = &c->rlimit_core;
 293     table[19].data = &c->rlimit_data;
 294     table[20].data = &c->rlimit_fsize;
 295     table[21].data = &c->rlimit_nofile;
 296     table[22].data = &c->rlimit_stack;
 297 #ifdef RLIMIT_NPROC
 298     table[23].data = &c->rlimit_nproc;
 299 #endif
 300 #ifdef RLIMIT_MEMLOCK
 301 #ifndef RLIMIT_NPROC
 302 #error "Houston, we have a numbering problem!"
 303 #endif
 304     table[24].data = &c->rlimit_memlock;
 305 #endif
 306 #endif
 307
 308
 309     pa_xfree(c->config_file);
 310     c->config_file = NULL;
 311
 312     f = filename ?
 313         fopen(c->config_file = pa_xstrdup(filename), "r") :
 314         pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file, "r");
 315
 316     if (!f && errno != ENOENT) {
 317         pa_log("WARNING: failed to open configuration file '%s': %s", c->config_file, pa_cstrerror(errno));
 318         goto finish;
 319     }
 320
 321     r = f ? pa_config_parse(c->config_file, f, table, NULL) : 0;
 322
 323 finish:
 324     if (f)
 325         fclose(f);
 326
 327     return r;
 328 }
 329
 330 int pa_daemon_conf_env(pa_daemon_conf *c) {
 331     char *e;
 332
 333     if ((e = getenv(ENV_DL_SEARCH_PATH))) {
 334         pa_xfree(c->dl_search_path);
 335         c->dl_search_path = pa_xstrdup(e);
 336     }
 337     if ((e = getenv(ENV_SCRIPT_FILE))) {
 338         pa_xfree(c->default_script_file);
 339         c->default_script_file = pa_xstrdup(e);
 340     }
 341
 342     return 0;
 343 }
 344
 345 static const char* const log_level_to_string[] = {
 346     [PA_LOG_DEBUG] = "debug",
 347     [PA_LOG_INFO] = "info",
 348     [PA_LOG_NOTICE] = "notice",
 349     [PA_LOG_WARN] = "warning",
 350     [PA_LOG_ERROR] = "error"
 351 };
 352
 353 char *pa_daemon_conf_dump(pa_daemon_conf *c) {
 354     pa_strbuf *s = pa_strbuf_new();
 355
 356     if (c->config_file)
 357         pa_strbuf_printf(s, "### Read from configuration file: %s ###\n", c->config_file);
 358
 359     assert(c->log_level <= PA_LOG_LEVEL_MAX);
 360
 361     pa_strbuf_printf(s, "daemonize = %i\n", !!c->daemonize);
 362     pa_strbuf_printf(s, "fail = %i\n", !!c->fail);
 363     pa_strbuf_printf(s, "high-priority = %i\n", !!c->high_priority);
 364     pa_strbuf_printf(s, "disallow-module-loading = %i\n", !!c->disallow_module_loading);
 365     pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
 366     pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
 367     pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
 368     pa_strbuf_printf(s, "dl-search-path = %s\n", c->dl_search_path ? c->dl_search_path : "");
 369     pa_strbuf_printf(s, "default-script-file = %s\n", c->default_script_file);
 370     pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
 371     pa_strbuf_printf(s, "log-level = %s\n", log_level_to_string[c->log_level]);
 372     pa_strbuf_printf(s, "resample-method = %s\n", pa_resample_method_to_string(c->resample_method));
 373     pa_strbuf_printf(s, "use-pid-file = %i\n", c->use_pid_file);
 374     pa_strbuf_printf(s, "system-instance = %i\n", !!c->system_instance);
 375     pa_strbuf_printf(s, "no-cpu-limit = %i\n", !!c->no_cpu_limit);
 376     pa_strbuf_printf(s, "disable_shm = %i\n", !!c->disable_shm);
 377 #ifdef HAVE_SYS_RESOURCE_H
 378     pa_strbuf_printf(s, "rlimit-as = %li\n", c->rlimit_as.is_set ? (long int) c->rlimit_as.value : -1);
 379     pa_strbuf_printf(s, "rlimit-core = %li\n", c->rlimit_core.is_set ? (long int) c->rlimit_core.value : -1);
 380     pa_strbuf_printf(s, "rlimit-data = %li\n", c->rlimit_data.is_set ? (long int) c->rlimit_data.value : -1);
 381     pa_strbuf_printf(s, "rlimit-fsize = %li\n", c->rlimit_fsize.is_set ? (long int) c->rlimit_fsize.value : -1);
 382     pa_strbuf_printf(s, "rlimit-nofile = %li\n", c->rlimit_nofile.is_set ? (long int) c->rlimit_nofile.value : -1);
 383     pa_strbuf_printf(s, "rlimit-stack = %li\n", c->rlimit_stack.is_set ? (long int) c->rlimit_stack.value : -1);
 384 #ifdef RLIMIT_NPROC
 385     pa_strbuf_printf(s, "rlimit-nproc = %li\n", c->rlimit_nproc.is_set ? (long int) c->rlimit_nproc.value : -1);
 386 #endif
 387 #ifdef RLIMIT_MEMLOCK
 388     pa_strbuf_printf(s, "rlimit-memlock = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_memlock.value : -1);
 389 #endif
 390 #endif
 391
 392     return pa_strbuf_tostring_free(s);
 393 }