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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <assert.h>
  30 #include <unistd.h>
  31
  32 #include <pulse/xmalloc.h>
  33
  34 #include <pulsecore/core-error.h>
  35 #include <pulsecore/core-util.h>
  36 #include <pulsecore/strbuf.h>
  37 #include <pulsecore/conf-parser.h>
  38 #include <pulsecore/resampler.h>
  39
  40 #include "daemon-conf.h"
  41
  42 #ifndef OS_IS_WIN32
  43 # define PATH_SEP "/"
  44 #else
  45 # define PATH_SEP "\\"
  46 #endif
  47
  48 #define DEFAULT_SCRIPT_FILE PA_DEFAULT_CONFIG_DIR PATH_SEP "default.pa"
  49 #define DEFAULT_SCRIPT_FILE_USER PATH_SEP "default.pa"
  50 #define DEFAULT_CONFIG_FILE PA_DEFAULT_CONFIG_DIR PATH_SEP "daemon.conf"
  51 #define DEFAULT_CONFIG_FILE_USER PATH_SEP "daemon.conf"
  52
  53 #define ENV_SCRIPT_FILE "PULSE_SCRIPT"
  54 #define ENV_CONFIG_FILE "PULSE_CONFIG"
  55 #define ENV_DL_SEARCH_PATH "PULSE_DLPATH"
  56
  57 static const pa_daemon_conf default_conf = {
  58     .cmd = PA_CMD_DAEMON,
  59     .daemonize = 0,
  60     .fail = 1,
  61     .high_priority = 0,
  62     .disallow_module_loading = 0,
  63     .exit_idle_time = -1,
  64     .module_idle_time = 20,
  65     .scache_idle_time = 20,
  66     .auto_log_target = 1,
  67     .script_commands = NULL,
  68     .dl_search_path = NULL,
  69     .default_script_file = NULL,
  70     .log_target = PA_LOG_SYSLOG,
  71     .log_level = PA_LOG_NOTICE,
  72     .resample_method = PA_RESAMPLER_SRC_SINC_FASTEST,
  73     .config_file = NULL,
  74     .use_pid_file = 1,
  75     .system_instance = 0,
  76     .no_cpu_limit = 0
  77 #ifdef HAVE_SYS_RESOURCE_H
  78     , .rlimit_as = { .value = 0, .is_set = 0 },
  79     .rlimit_core = { .value = 0, .is_set = 0 },
  80     .rlimit_data = { .value = 0, .is_set = 0 },
  81     .rlimit_fsize = { .value = 0, .is_set = 0 },
  82     .rlimit_nofile = { .value = 200, .is_set = 1 },
  83     .rlimit_stack = { .value = 0, .is_set = 0 }
  84 #ifdef RLIMIT_NPROC
  85     , .rlimit_nproc = { .value = 0, .is_set = 0 }
  86 #endif
  87 #ifdef RLIMIT_MEMLOCK
  88     , .rlimit_memlock = { .value = 0, .is_set = 1 }
  89 #endif
  90 #endif
  91 };
  92
  93 pa_daemon_conf* pa_daemon_conf_new(void) {
  94     FILE *f;
  95     pa_daemon_conf *c = pa_xmemdup(&default_conf, sizeof(default_conf));
  96
  97     if ((f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file, "r")))
  98         fclose(f);
  99
 100     c->dl_search_path = pa_xstrdup(PA_DLSEARCHPATH);
 101     return c;
 102 }
 103
 104 void pa_daemon_conf_free(pa_daemon_conf *c) {
 105     assert(c);
 106     pa_xfree(c->script_commands);
 107     pa_xfree(c->dl_search_path);
 108     pa_xfree(c->default_script_file);
 109     pa_xfree(c->config_file);
 110     pa_xfree(c);
 111 }
 112
 113 int pa_daemon_conf_set_log_target(pa_daemon_conf *c, const char *string) {
 114     assert(c && string);
 115
 116     if (!strcmp(string, "auto"))
 117         c->auto_log_target = 1;
 118     else if (!strcmp(string, "syslog")) {
 119         c->auto_log_target = 0;
 120         c->log_target = PA_LOG_SYSLOG;
 121     } else if (!strcmp(string, "stderr")) {
 122         c->auto_log_target = 0;
 123         c->log_target = PA_LOG_STDERR;
 124     } else
 125         return -1;
 126
 127     return 0;
 128 }
 129
 130 int pa_daemon_conf_set_log_level(pa_daemon_conf *c, const char *string) {
 131     uint32_t u;
 132     assert(c && string);
 133
 134     if (pa_atou(string, &u) >= 0) {
 135         if (u >= PA_LOG_LEVEL_MAX)
 136             return -1;
 137
 138         c->log_level = (pa_log_level_t) u;
 139     } else if (pa_startswith(string, "debug"))
 140         c->log_level = PA_LOG_DEBUG;
 141     else if (pa_startswith(string, "info"))
 142         c->log_level = PA_LOG_INFO;
 143     else if (pa_startswith(string, "notice"))
 144         c->log_level = PA_LOG_NOTICE;
 145     else if (pa_startswith(string, "warn"))
 146         c->log_level = PA_LOG_WARN;
 147     else if (pa_startswith(string, "err"))
 148         c->log_level = PA_LOG_ERROR;
 149     else
 150         return -1;
 151
 152     return 0;
 153 }
 154
 155 int pa_daemon_conf_set_resample_method(pa_daemon_conf *c, const char *string) {
 156     int m;
 157     assert(c && string);
 158
 159     if ((m = pa_parse_resample_method(string)) < 0)
 160         return -1;
 161
 162     c->resample_method = m;
 163     return 0;
 164 }
 165
 166 static int parse_log_target(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 167     pa_daemon_conf *c = data;
 168     assert(filename && lvalue && rvalue && data);
 169
 170     if (pa_daemon_conf_set_log_target(c, rvalue) < 0) {
 171         pa_log("[%s:%u] Invalid log target '%s'.", filename, line, rvalue);
 172         return -1;
 173     }
 174
 175     return 0;
 176 }
 177
 178 static int parse_log_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 179     pa_daemon_conf *c = data;
 180     assert(filename && lvalue && rvalue && data);
 181
 182     if (pa_daemon_conf_set_log_level(c, rvalue) < 0) {
 183         pa_log("[%s:%u] Invalid log level '%s'.", filename, line, rvalue);
 184         return -1;
 185     }
 186
 187     return 0;
 188 }
 189
 190 static int parse_resample_method(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 191     pa_daemon_conf *c = data;
 192     assert(filename && lvalue && rvalue && data);
 193
 194     if (pa_daemon_conf_set_resample_method(c, rvalue) < 0) {
 195         pa_log("[%s:%u] Inavalid resample method '%s'.", filename, line, rvalue);
 196         return -1;
 197     }
 198
 199     return 0;
 200 }
 201
 202 static int parse_rlimit(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 203 #ifdef HAVE_SYS_RESOURCE_H
 204     struct pa_rlimit *r = data;
 205     assert(filename);
 206     assert(lvalue);
 207     assert(rvalue);
 208     assert(r);
 209
 210     if (rvalue[strspn(rvalue, "\t ")] == 0) {
 211         /* Empty string */
 212         r->is_set = 0;
 213         r->value = 0;
 214     } else {
 215         int32_t k;
 216         if (pa_atoi(rvalue, &k) < 0) {
 217             pa_log("[%s:%u] Inavalid rlimit '%s'.", filename, line, rvalue);
 218             return -1;
 219         }
 220         r->is_set = k >= 0;
 221         r->value = k >= 0 ? (rlim_t) k : 0;
 222     }
 223 #else
 224     pa_log_warn("[%s:%u] rlimit not supported on this platform.", filename, line);
 225 #endif
 226
 227     return 0;
 228 }
 229
 230 int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
 231     int r = -1;
 232     FILE *f = NULL;
 233
 234     pa_config_item table[] = {
 235         { "daemonize",               pa_config_parse_bool,    NULL },
 236         { "fail",                    pa_config_parse_bool,    NULL },
 237         { "high-priority",           pa_config_parse_bool,    NULL },
 238         { "disallow-module-loading", pa_config_parse_bool,    NULL },
 239         { "exit-idle-time",          pa_config_parse_int,     NULL },
 240         { "module-idle-time",        pa_config_parse_int,     NULL },
 241         { "scache-idle-time",        pa_config_parse_int,     NULL },
 242         { "dl-search-path",          pa_config_parse_string,  NULL },
 243         { "default-script-file",     pa_config_parse_string,  NULL },
 244         { "log-target",              parse_log_target,        NULL },
 245         { "log-level",               parse_log_level,         NULL },
 246         { "verbose",                 parse_log_level,         NULL },
 247         { "resample-method",         parse_resample_method,   NULL },
 248         { "use-pid-file",            pa_config_parse_bool,    NULL },
 249         { "system-instance",         pa_config_parse_bool,    NULL },
 250         { "no-cpu-limit",            pa_config_parse_bool,    NULL },
 251 #ifdef HAVE_SYS_RESOURCE_H
 252         { "rlimit-as",               parse_rlimit,            NULL },
 253         { "rlimit-core",             parse_rlimit,            NULL },
 254         { "rlimit-data",             parse_rlimit,            NULL },
 255         { "rlimit-fsize",            parse_rlimit,            NULL },
 256         { "rlimit-nofile",           parse_rlimit,            NULL },
 257         { "rlimit-stack",            parse_rlimit,            NULL },
 258 #ifdef RLIMIT_NPROC
 259         { "rlimit-nproc",            parse_rlimit,            NULL },
 260 #endif
 261 #ifdef RLIMIT_MEMLOCK
 262         { "rlimit-memlock",          parse_rlimit,            NULL },
 263 #endif
 264 #endif
 265         { NULL,                      NULL,                    NULL },
 266     };
 267
 268     table[0].data = &c->daemonize;
 269     table[1].data = &c->fail;
 270     table[2].data = &c->high_priority;
 271     table[3].data = &c->disallow_module_loading;
 272     table[4].data = &c->exit_idle_time;
 273     table[5].data = &c->module_idle_time;
 274     table[6].data = &c->scache_idle_time;
 275     table[7].data = &c->dl_search_path;
 276     table[8].data = &c->default_script_file;
 277     table[9].data = c;
 278     table[10].data = c;
 279     table[11].data = c;
 280     table[12].data = c;
 281     table[13].data = &c->use_pid_file;
 282     table[14].data = &c->system_instance;
 283     table[15].data = &c->no_cpu_limit;
 284 #ifdef HAVE_SYS_RESOURCE_H
 285     table[16].data = &c->rlimit_as;
 286     table[17].data = &c->rlimit_core;
 287     table[18].data = &c->rlimit_data;
 288     table[19].data = &c->rlimit_fsize;
 289     table[20].data = &c->rlimit_nofile;
 290     table[21].data = &c->rlimit_stack;
 291 #ifdef RLIMIT_NPROC
 292     table[22].data = &c->rlimit_nproc;
 293 #endif
 294 #ifdef RLIMIT_MEMLOCK
 295 #ifndef RLIMIT_NPROC
 296 #error "Houston, we have a numbering problem!"
 297 #endif
 298     table[23].data = &c->rlimit_memlock;
 299 #endif
 300 #endif
 301
 302
 303     pa_xfree(c->config_file);
 304     c->config_file = NULL;
 305
 306     f = filename ?
 307         fopen(c->config_file = pa_xstrdup(filename), "r") :
 308         pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file, "r");
 309
 310     if (!f && errno != ENOENT) {
 311         pa_log("WARNING: failed to open configuration file '%s': %s", c->config_file, pa_cstrerror(errno));
 312         goto finish;
 313     }
 314
 315     r = f ? pa_config_parse(c->config_file, f, table, NULL) : 0;
 316
 317 finish:
 318     if (f)
 319         fclose(f);
 320
 321     return r;
 322 }
 323
 324 int pa_daemon_conf_env(pa_daemon_conf *c) {
 325     char *e;
 326
 327     if ((e = getenv(ENV_DL_SEARCH_PATH))) {
 328         pa_xfree(c->dl_search_path);
 329         c->dl_search_path = pa_xstrdup(e);
 330     }
 331     if ((e = getenv(ENV_SCRIPT_FILE))) {
 332         pa_xfree(c->default_script_file);
 333         c->default_script_file = pa_xstrdup(e);
 334     }
 335
 336     return 0;
 337 }
 338
 339 static const char* const log_level_to_string[] = {
 340     [PA_LOG_DEBUG] = "debug",
 341     [PA_LOG_INFO] = "info",
 342     [PA_LOG_NOTICE] = "notice",
 343     [PA_LOG_WARN] = "warning",
 344     [PA_LOG_ERROR] = "error"
 345 };
 346
 347 char *pa_daemon_conf_dump(pa_daemon_conf *c) {
 348     pa_strbuf *s = pa_strbuf_new();
 349
 350     if (c->config_file)
 351         pa_strbuf_printf(s, "### Read from configuration file: %s ###\n", c->config_file);
 352
 353     assert(c->log_level <= PA_LOG_LEVEL_MAX);
 354
 355     pa_strbuf_printf(s, "daemonize = %i\n", !!c->daemonize);
 356     pa_strbuf_printf(s, "fail = %i\n", !!c->fail);
 357     pa_strbuf_printf(s, "high-priority = %i\n", !!c->high_priority);
 358     pa_strbuf_printf(s, "disallow-module-loading = %i\n", !!c->disallow_module_loading);
 359     pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
 360     pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
 361     pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
 362     pa_strbuf_printf(s, "dl-search-path = %s\n", c->dl_search_path ? c->dl_search_path : "");
 363     pa_strbuf_printf(s, "default-script-file = %s\n", c->default_script_file);
 364     pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
 365     pa_strbuf_printf(s, "log-level = %s\n", log_level_to_string[c->log_level]);
 366     pa_strbuf_printf(s, "resample-method = %s\n", pa_resample_method_to_string(c->resample_method));
 367     pa_strbuf_printf(s, "use-pid-file = %i\n", c->use_pid_file);
 368     pa_strbuf_printf(s, "system-instance = %i\n", !!c->system_instance);
 369     pa_strbuf_printf(s, "no-cpu-limit = %i\n", !!c->no_cpu_limit);
 370 #ifdef HAVE_SYS_RESOURCE_H
 371     pa_strbuf_printf(s, "rlimit-as = %li\n", c->rlimit_as.is_set ? (long int) c->rlimit_as.value : -1);
 372     pa_strbuf_printf(s, "rlimit-core = %li\n", c->rlimit_core.is_set ? (long int) c->rlimit_core.value : -1);
 373     pa_strbuf_printf(s, "rlimit-data = %li\n", c->rlimit_data.is_set ? (long int) c->rlimit_data.value : -1);
 374     pa_strbuf_printf(s, "rlimit-fsize = %li\n", c->rlimit_fsize.is_set ? (long int) c->rlimit_fsize.value : -1);
 375     pa_strbuf_printf(s, "rlimit-nofile = %li\n", c->rlimit_nofile.is_set ? (long int) c->rlimit_nofile.value : -1);
 376     pa_strbuf_printf(s, "rlimit-stack = %li\n", c->rlimit_stack.is_set ? (long int) c->rlimit_stack.value : -1);
 377 #ifdef RLIMIT_NPROC
 378     pa_strbuf_printf(s, "rlimit-nproc = %li\n", c->rlimit_nproc.is_set ? (long int) c->rlimit_nproc.value : -1);
 379 #endif
 380 #ifdef RLIMIT_MEMLOCK
 381     pa_strbuf_printf(s, "rlimit-memlock = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_memlock.value : -1);
 382 #endif
 383 #endif
 384
 385     return pa_strbuf_tostring_free(s);
 386 }