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