| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <nginx.h> |
| |
| |
| static void ngx_show_version_info(void); |
| static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle); |
| static ngx_int_t ngx_get_options(int argc, char *const *argv); |
| static ngx_int_t ngx_process_options(ngx_cycle_t *cycle); |
| static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv); |
| static void *ngx_core_module_create_conf(ngx_cycle_t *cycle); |
| static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf); |
| static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| static char *ngx_set_env(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| static char *ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| static char *ngx_set_cpu_affinity(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_set_worker_processes(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_load_module(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| #if (NGX_HAVE_DLOPEN) |
| static void ngx_unload_module(void *data); |
| #endif |
| |
| |
| static ngx_conf_enum_t ngx_debug_points[] = { |
| { ngx_string("stop"), NGX_DEBUG_POINTS_STOP }, |
| { ngx_string("abort"), NGX_DEBUG_POINTS_ABORT }, |
| { ngx_null_string, 0 } |
| }; |
| |
| |
| static ngx_command_t ngx_core_commands[] = { |
| |
| { ngx_string("daemon"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| 0, |
| offsetof(ngx_core_conf_t, daemon), |
| NULL }, |
| |
| { ngx_string("master_process"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| 0, |
| offsetof(ngx_core_conf_t, master), |
| NULL }, |
| |
| { ngx_string("timer_resolution"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_msec_slot, |
| 0, |
| offsetof(ngx_core_conf_t, timer_resolution), |
| NULL }, |
| |
| { ngx_string("pid"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_str_slot, |
| 0, |
| offsetof(ngx_core_conf_t, pid), |
| NULL }, |
| |
| { ngx_string("lock_file"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_str_slot, |
| 0, |
| offsetof(ngx_core_conf_t, lock_file), |
| NULL }, |
| |
| { ngx_string("worker_processes"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_set_worker_processes, |
| 0, |
| 0, |
| NULL }, |
| |
| { ngx_string("debug_points"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_enum_slot, |
| 0, |
| offsetof(ngx_core_conf_t, debug_points), |
| &ngx_debug_points }, |
| |
| { ngx_string("user"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12, |
| ngx_set_user, |
| 0, |
| 0, |
| NULL }, |
| |
| { ngx_string("worker_priority"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_set_priority, |
| 0, |
| 0, |
| NULL }, |
| |
| { ngx_string("worker_cpu_affinity"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_1MORE, |
| ngx_set_cpu_affinity, |
| 0, |
| 0, |
| NULL }, |
| |
| { ngx_string("worker_rlimit_nofile"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_num_slot, |
| 0, |
| offsetof(ngx_core_conf_t, rlimit_nofile), |
| NULL }, |
| |
| { ngx_string("worker_rlimit_core"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_off_slot, |
| 0, |
| offsetof(ngx_core_conf_t, rlimit_core), |
| NULL }, |
| |
| { ngx_string("working_directory"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_str_slot, |
| 0, |
| offsetof(ngx_core_conf_t, working_directory), |
| NULL }, |
| |
| { ngx_string("env"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_set_env, |
| 0, |
| 0, |
| NULL }, |
| |
| { ngx_string("load_module"), |
| NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, |
| ngx_load_module, |
| 0, |
| 0, |
| NULL }, |
| |
| ngx_null_command |
| }; |
| |
| |
| static ngx_core_module_t ngx_core_module_ctx = { |
| ngx_string("core"), |
| ngx_core_module_create_conf, |
| ngx_core_module_init_conf |
| }; |
| |
| |
| ngx_module_t ngx_core_module = { |
| NGX_MODULE_V1, |
| &ngx_core_module_ctx, /* module context */ |
| ngx_core_commands, /* module directives */ |
| NGX_CORE_MODULE, /* module type */ |
| NULL, /* init master */ |
| NULL, /* init module */ |
| NULL, /* init process */ |
| NULL, /* init thread */ |
| NULL, /* exit thread */ |
| NULL, /* exit process */ |
| NULL, /* exit master */ |
| NGX_MODULE_V1_PADDING |
| }; |
| |
| |
| static ngx_uint_t ngx_show_help; |
| static ngx_uint_t ngx_show_version; |
| static ngx_uint_t ngx_show_configure; |
| static u_char *ngx_prefix; |
| static u_char *ngx_conf_file; |
| static u_char *ngx_conf_params; |
| static char *ngx_signal; |
| |
| |
| static char **ngx_os_environ; |
| |
| |
| int ngx_cdecl |
| main(int argc, char *const *argv) |
| { |
| ngx_buf_t *b; |
| ngx_log_t *log; |
| ngx_uint_t i; |
| ngx_cycle_t *cycle, init_cycle; |
| ngx_conf_dump_t *cd; |
| ngx_core_conf_t *ccf; |
| |
| ngx_debug_init(); |
| |
| if (ngx_strerror_init() != NGX_OK) { |
| return 1; |
| } |
| |
| if (ngx_get_options(argc, argv) != NGX_OK) { |
| return 1; |
| } |
| |
| if (ngx_show_version) { |
| ngx_show_version_info(); |
| |
| if (!ngx_test_config) { |
| return 0; |
| } |
| } |
| |
| /* TODO */ ngx_max_sockets = -1; |
| |
| ngx_time_init(); |
| |
| #if (NGX_PCRE) |
| ngx_regex_init(); |
| #endif |
| |
| ngx_pid = ngx_getpid(); |
| |
| log = ngx_log_init(ngx_prefix); |
| if (log == NULL) { |
| return 1; |
| } |
| |
| /* STUB */ |
| #if (NGX_OPENSSL) |
| ngx_ssl_init(log); |
| #endif |
| |
| /* |
| * init_cycle->log is required for signal handlers and |
| * ngx_process_options() |
| */ |
| |
| ngx_memzero(&init_cycle, sizeof(ngx_cycle_t)); |
| init_cycle.log = log; |
| ngx_cycle = &init_cycle; |
| |
| init_cycle.pool = ngx_create_pool(1024, log); |
| if (init_cycle.pool == NULL) { |
| return 1; |
| } |
| |
| if (ngx_save_argv(&init_cycle, argc, argv) != NGX_OK) { |
| return 1; |
| } |
| |
| if (ngx_process_options(&init_cycle) != NGX_OK) { |
| return 1; |
| } |
| |
| if (ngx_os_init(log) != NGX_OK) { |
| return 1; |
| } |
| |
| /* |
| * ngx_crc32_table_init() requires ngx_cacheline_size set in ngx_os_init() |
| */ |
| |
| if (ngx_crc32_table_init() != NGX_OK) { |
| return 1; |
| } |
| |
| if (ngx_add_inherited_sockets(&init_cycle) != NGX_OK) { |
| return 1; |
| } |
| |
| if (ngx_preinit_modules() != NGX_OK) { |
| return 1; |
| } |
| |
| cycle = ngx_init_cycle(&init_cycle); |
| if (cycle == NULL) { |
| if (ngx_test_config) { |
| ngx_log_stderr(0, "configuration file %s test failed", |
| init_cycle.conf_file.data); |
| } |
| |
| return 1; |
| } |
| |
| if (ngx_test_config) { |
| if (!ngx_quiet_mode) { |
| ngx_log_stderr(0, "configuration file %s test is successful", |
| cycle->conf_file.data); |
| } |
| |
| if (ngx_dump_config) { |
| cd = cycle->config_dump.elts; |
| |
| for (i = 0; i < cycle->config_dump.nelts; i++) { |
| |
| ngx_write_stdout("# configuration file "); |
| (void) ngx_write_fd(ngx_stdout, cd[i].name.data, |
| cd[i].name.len); |
| ngx_write_stdout(":" NGX_LINEFEED); |
| |
| b = cd[i].buffer; |
| |
| (void) ngx_write_fd(ngx_stdout, b->pos, b->last - b->pos); |
| ngx_write_stdout(NGX_LINEFEED); |
| } |
| } |
| |
| return 0; |
| } |
| |
| if (ngx_signal) { |
| return ngx_signal_process(cycle, ngx_signal); |
| } |
| |
| ngx_os_status(cycle->log); |
| |
| ngx_cycle = cycle; |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| |
| if (ccf->master && ngx_process == NGX_PROCESS_SINGLE) { |
| ngx_process = NGX_PROCESS_MASTER; |
| } |
| |
| #if !(NGX_WIN32) |
| |
| if (ngx_init_signals(cycle->log) != NGX_OK) { |
| return 1; |
| } |
| |
| if (!ngx_inherited && ccf->daemon) { |
| if (ngx_daemon(cycle->log) != NGX_OK) { |
| return 1; |
| } |
| |
| ngx_daemonized = 1; |
| } |
| |
| if (ngx_inherited) { |
| ngx_daemonized = 1; |
| } |
| |
| #endif |
| |
| if (ngx_create_pidfile(&ccf->pid, cycle->log) != NGX_OK) { |
| return 1; |
| } |
| |
| if (ngx_log_redirect_stderr(cycle) != NGX_OK) { |
| return 1; |
| } |
| |
| if (log->file->fd != ngx_stderr) { |
| if (ngx_close_file(log->file->fd) == NGX_FILE_ERROR) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| ngx_close_file_n " built-in log failed"); |
| } |
| } |
| |
| ngx_use_stderr = 0; |
| |
| if (ngx_process == NGX_PROCESS_SINGLE) { |
| ngx_single_process_cycle(cycle); |
| |
| } else { |
| ngx_master_process_cycle(cycle); |
| } |
| |
| return 0; |
| } |
| |
| |
| static void |
| ngx_show_version_info(void) |
| { |
| ngx_write_stderr("nginx version: " NGINX_VER_BUILD NGX_LINEFEED); |
| |
| if (ngx_show_help) { |
| ngx_write_stderr( |
| "Usage: nginx [-?hvVtTq] [-s signal] [-c filename] " |
| "[-p prefix] [-g directives]" NGX_LINEFEED |
| NGX_LINEFEED |
| "Options:" NGX_LINEFEED |
| " -?,-h : this help" NGX_LINEFEED |
| " -v : show version and exit" NGX_LINEFEED |
| " -V : show version and configure options then exit" |
| NGX_LINEFEED |
| " -t : test configuration and exit" NGX_LINEFEED |
| " -T : test configuration, dump it and exit" |
| NGX_LINEFEED |
| " -q : suppress non-error messages " |
| "during configuration testing" NGX_LINEFEED |
| " -s signal : send signal to a master process: " |
| "stop, quit, reopen, reload" NGX_LINEFEED |
| #ifdef NGX_PREFIX |
| " -p prefix : set prefix path (default: " NGX_PREFIX ")" |
| NGX_LINEFEED |
| #else |
| " -p prefix : set prefix path (default: NONE)" NGX_LINEFEED |
| #endif |
| " -c filename : set configuration file (default: " NGX_CONF_PATH |
| ")" NGX_LINEFEED |
| " -g directives : set global directives out of configuration " |
| "file" NGX_LINEFEED NGX_LINEFEED |
| ); |
| } |
| |
| if (ngx_show_configure) { |
| |
| #ifdef NGX_COMPILER |
| ngx_write_stderr("built by " NGX_COMPILER NGX_LINEFEED); |
| #endif |
| |
| #if (NGX_SSL) |
| if (ngx_strcmp(ngx_ssl_version(), OPENSSL_VERSION_TEXT) == 0) { |
| ngx_write_stderr("built with " OPENSSL_VERSION_TEXT NGX_LINEFEED); |
| } else { |
| ngx_write_stderr("built with " OPENSSL_VERSION_TEXT |
| " (running with "); |
| ngx_write_stderr((char *) (uintptr_t) ngx_ssl_version()); |
| ngx_write_stderr(")" NGX_LINEFEED); |
| } |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| ngx_write_stderr("TLS SNI support enabled" NGX_LINEFEED); |
| #else |
| ngx_write_stderr("TLS SNI support disabled" NGX_LINEFEED); |
| #endif |
| #endif |
| |
| ngx_write_stderr("configure arguments:" NGX_CONFIGURE NGX_LINEFEED); |
| } |
| } |
| |
| |
| static ngx_int_t |
| ngx_add_inherited_sockets(ngx_cycle_t *cycle) |
| { |
| u_char *p, *v, *inherited; |
| ngx_int_t s; |
| ngx_listening_t *ls; |
| |
| inherited = (u_char *) getenv(NGINX_VAR); |
| |
| if (inherited == NULL) { |
| return NGX_OK; |
| } |
| |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, |
| "using inherited sockets from \"%s\"", inherited); |
| |
| if (ngx_array_init(&cycle->listening, cycle->pool, 10, |
| sizeof(ngx_listening_t)) |
| != NGX_OK) |
| { |
| return NGX_ERROR; |
| } |
| |
| for (p = inherited, v = p; *p; p++) { |
| if (*p == ':' || *p == ';') { |
| s = ngx_atoi(v, p - v); |
| if (s == NGX_ERROR) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, |
| "invalid socket number \"%s\" in " NGINX_VAR |
| " environment variable, ignoring the rest" |
| " of the variable", v); |
| break; |
| } |
| |
| v = p + 1; |
| |
| ls = ngx_array_push(&cycle->listening); |
| if (ls == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memzero(ls, sizeof(ngx_listening_t)); |
| |
| ls->fd = (ngx_socket_t) s; |
| } |
| } |
| |
| if (v != p) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, |
| "invalid socket number \"%s\" in " NGINX_VAR |
| " environment variable, ignoring", v); |
| } |
| |
| ngx_inherited = 1; |
| |
| return ngx_set_inherited_sockets(cycle); |
| } |
| |
| |
| char ** |
| ngx_set_environment(ngx_cycle_t *cycle, ngx_uint_t *last) |
| { |
| char **p, **env; |
| ngx_str_t *var; |
| ngx_uint_t i, n; |
| ngx_core_conf_t *ccf; |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| |
| if (last == NULL && ccf->environment) { |
| return ccf->environment; |
| } |
| |
| var = ccf->env.elts; |
| |
| for (i = 0; i < ccf->env.nelts; i++) { |
| if (ngx_strcmp(var[i].data, "TZ") == 0 |
| || ngx_strncmp(var[i].data, "TZ=", 3) == 0) |
| { |
| goto tz_found; |
| } |
| } |
| |
| var = ngx_array_push(&ccf->env); |
| if (var == NULL) { |
| return NULL; |
| } |
| |
| var->len = 2; |
| var->data = (u_char *) "TZ"; |
| |
| var = ccf->env.elts; |
| |
| tz_found: |
| |
| n = 0; |
| |
| for (i = 0; i < ccf->env.nelts; i++) { |
| |
| if (var[i].data[var[i].len] == '=') { |
| n++; |
| continue; |
| } |
| |
| for (p = ngx_os_environ; *p; p++) { |
| |
| if (ngx_strncmp(*p, var[i].data, var[i].len) == 0 |
| && (*p)[var[i].len] == '=') |
| { |
| n++; |
| break; |
| } |
| } |
| } |
| |
| if (last) { |
| env = ngx_alloc((*last + n + 1) * sizeof(char *), cycle->log); |
| *last = n; |
| |
| } else { |
| env = ngx_palloc(cycle->pool, (n + 1) * sizeof(char *)); |
| } |
| |
| if (env == NULL) { |
| return NULL; |
| } |
| |
| n = 0; |
| |
| for (i = 0; i < ccf->env.nelts; i++) { |
| |
| if (var[i].data[var[i].len] == '=') { |
| env[n++] = (char *) var[i].data; |
| continue; |
| } |
| |
| for (p = ngx_os_environ; *p; p++) { |
| |
| if (ngx_strncmp(*p, var[i].data, var[i].len) == 0 |
| && (*p)[var[i].len] == '=') |
| { |
| env[n++] = *p; |
| break; |
| } |
| } |
| } |
| |
| env[n] = NULL; |
| |
| if (last == NULL) { |
| ccf->environment = env; |
| environ = env; |
| } |
| |
| return env; |
| } |
| |
| |
| ngx_pid_t |
| ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv) |
| { |
| char **env, *var; |
| u_char *p; |
| ngx_uint_t i, n; |
| ngx_pid_t pid; |
| ngx_exec_ctx_t ctx; |
| ngx_core_conf_t *ccf; |
| ngx_listening_t *ls; |
| |
| ngx_memzero(&ctx, sizeof(ngx_exec_ctx_t)); |
| |
| ctx.path = argv[0]; |
| ctx.name = "new binary process"; |
| ctx.argv = argv; |
| |
| n = 2; |
| env = ngx_set_environment(cycle, &n); |
| if (env == NULL) { |
| return NGX_INVALID_PID; |
| } |
| |
| var = ngx_alloc(sizeof(NGINX_VAR) |
| + cycle->listening.nelts * (NGX_INT32_LEN + 1) + 2, |
| cycle->log); |
| if (var == NULL) { |
| ngx_free(env); |
| return NGX_INVALID_PID; |
| } |
| |
| p = ngx_cpymem(var, NGINX_VAR "=", sizeof(NGINX_VAR)); |
| |
| ls = cycle->listening.elts; |
| for (i = 0; i < cycle->listening.nelts; i++) { |
| p = ngx_sprintf(p, "%ud;", ls[i].fd); |
| } |
| |
| *p = '\0'; |
| |
| env[n++] = var; |
| |
| #if (NGX_SETPROCTITLE_USES_ENV) |
| |
| /* allocate the spare 300 bytes for the new binary process title */ |
| |
| env[n++] = "SPARE=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" |
| "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" |
| "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" |
| "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" |
| "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"; |
| |
| #endif |
| |
| env[n] = NULL; |
| |
| #if (NGX_DEBUG) |
| { |
| char **e; |
| for (e = env; *e; e++) { |
| ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "env: %s", *e); |
| } |
| } |
| #endif |
| |
| ctx.envp = (char *const *) env; |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| |
| if (ngx_rename_file(ccf->pid.data, ccf->oldpid.data) == NGX_FILE_ERROR) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| ngx_rename_file_n " %s to %s failed " |
| "before executing new binary process \"%s\"", |
| ccf->pid.data, ccf->oldpid.data, argv[0]); |
| |
| ngx_free(env); |
| ngx_free(var); |
| |
| return NGX_INVALID_PID; |
| } |
| |
| pid = ngx_execute(cycle, &ctx); |
| |
| if (pid == NGX_INVALID_PID) { |
| if (ngx_rename_file(ccf->oldpid.data, ccf->pid.data) |
| == NGX_FILE_ERROR) |
| { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| ngx_rename_file_n " %s back to %s failed after " |
| "an attempt to execute new binary process \"%s\"", |
| ccf->oldpid.data, ccf->pid.data, argv[0]); |
| } |
| } |
| |
| ngx_free(env); |
| ngx_free(var); |
| |
| return pid; |
| } |
| |
| |
| static ngx_int_t |
| ngx_get_options(int argc, char *const *argv) |
| { |
| u_char *p; |
| ngx_int_t i; |
| |
| for (i = 1; i < argc; i++) { |
| |
| p = (u_char *) argv[i]; |
| |
| if (*p++ != '-') { |
| ngx_log_stderr(0, "invalid option: \"%s\"", argv[i]); |
| return NGX_ERROR; |
| } |
| |
| while (*p) { |
| |
| switch (*p++) { |
| |
| case '?': |
| case 'h': |
| ngx_show_version = 1; |
| ngx_show_help = 1; |
| break; |
| |
| case 'v': |
| ngx_show_version = 1; |
| break; |
| |
| case 'V': |
| ngx_show_version = 1; |
| ngx_show_configure = 1; |
| break; |
| |
| case 't': |
| ngx_test_config = 1; |
| break; |
| |
| case 'T': |
| ngx_test_config = 1; |
| ngx_dump_config = 1; |
| break; |
| |
| case 'q': |
| ngx_quiet_mode = 1; |
| break; |
| |
| case 'p': |
| if (*p) { |
| ngx_prefix = p; |
| goto next; |
| } |
| |
| if (argv[++i]) { |
| ngx_prefix = (u_char *) argv[i]; |
| goto next; |
| } |
| |
| ngx_log_stderr(0, "option \"-p\" requires directory name"); |
| return NGX_ERROR; |
| |
| case 'c': |
| if (*p) { |
| ngx_conf_file = p; |
| goto next; |
| } |
| |
| if (argv[++i]) { |
| ngx_conf_file = (u_char *) argv[i]; |
| goto next; |
| } |
| |
| ngx_log_stderr(0, "option \"-c\" requires file name"); |
| return NGX_ERROR; |
| |
| case 'g': |
| if (*p) { |
| ngx_conf_params = p; |
| goto next; |
| } |
| |
| if (argv[++i]) { |
| ngx_conf_params = (u_char *) argv[i]; |
| goto next; |
| } |
| |
| ngx_log_stderr(0, "option \"-g\" requires parameter"); |
| return NGX_ERROR; |
| |
| case 's': |
| if (*p) { |
| ngx_signal = (char *) p; |
| |
| } else if (argv[++i]) { |
| ngx_signal = argv[i]; |
| |
| } else { |
| ngx_log_stderr(0, "option \"-s\" requires parameter"); |
| return NGX_ERROR; |
| } |
| |
| if (ngx_strcmp(ngx_signal, "stop") == 0 |
| || ngx_strcmp(ngx_signal, "quit") == 0 |
| || ngx_strcmp(ngx_signal, "reopen") == 0 |
| || ngx_strcmp(ngx_signal, "reload") == 0) |
| { |
| ngx_process = NGX_PROCESS_SIGNALLER; |
| goto next; |
| } |
| |
| ngx_log_stderr(0, "invalid option: \"-s %s\"", ngx_signal); |
| return NGX_ERROR; |
| |
| default: |
| ngx_log_stderr(0, "invalid option: \"%c\"", *(p - 1)); |
| return NGX_ERROR; |
| } |
| } |
| |
| next: |
| |
| continue; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv) |
| { |
| #if (NGX_FREEBSD) |
| |
| ngx_os_argv = (char **) argv; |
| ngx_argc = argc; |
| ngx_argv = (char **) argv; |
| |
| #else |
| size_t len; |
| ngx_int_t i; |
| |
| ngx_os_argv = (char **) argv; |
| ngx_argc = argc; |
| |
| ngx_argv = ngx_alloc((argc + 1) * sizeof(char *), cycle->log); |
| if (ngx_argv == NULL) { |
| return NGX_ERROR; |
| } |
| |
| for (i = 0; i < argc; i++) { |
| len = ngx_strlen(argv[i]) + 1; |
| |
| ngx_argv[i] = ngx_alloc(len, cycle->log); |
| if (ngx_argv[i] == NULL) { |
| return NGX_ERROR; |
| } |
| |
| (void) ngx_cpystrn((u_char *) ngx_argv[i], (u_char *) argv[i], len); |
| } |
| |
| ngx_argv[i] = NULL; |
| |
| #endif |
| |
| ngx_os_environ = environ; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_process_options(ngx_cycle_t *cycle) |
| { |
| u_char *p; |
| size_t len; |
| |
| if (ngx_prefix) { |
| len = ngx_strlen(ngx_prefix); |
| p = ngx_prefix; |
| |
| if (len && !ngx_path_separator(p[len - 1])) { |
| p = ngx_pnalloc(cycle->pool, len + 1); |
| if (p == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memcpy(p, ngx_prefix, len); |
| p[len++] = '/'; |
| } |
| |
| cycle->conf_prefix.len = len; |
| cycle->conf_prefix.data = p; |
| cycle->prefix.len = len; |
| cycle->prefix.data = p; |
| |
| } else { |
| |
| #ifndef NGX_PREFIX |
| |
| p = ngx_pnalloc(cycle->pool, NGX_MAX_PATH); |
| if (p == NULL) { |
| return NGX_ERROR; |
| } |
| |
| if (ngx_getcwd(p, NGX_MAX_PATH) == 0) { |
| ngx_log_stderr(ngx_errno, "[emerg]: " ngx_getcwd_n " failed"); |
| return NGX_ERROR; |
| } |
| |
| len = ngx_strlen(p); |
| |
| p[len++] = '/'; |
| |
| cycle->conf_prefix.len = len; |
| cycle->conf_prefix.data = p; |
| cycle->prefix.len = len; |
| cycle->prefix.data = p; |
| |
| #else |
| |
| #ifdef NGX_CONF_PREFIX |
| ngx_str_set(&cycle->conf_prefix, NGX_CONF_PREFIX); |
| #else |
| ngx_str_set(&cycle->conf_prefix, NGX_PREFIX); |
| #endif |
| ngx_str_set(&cycle->prefix, NGX_PREFIX); |
| |
| #endif |
| } |
| |
| if (ngx_conf_file) { |
| cycle->conf_file.len = ngx_strlen(ngx_conf_file); |
| cycle->conf_file.data = ngx_conf_file; |
| |
| } else { |
| ngx_str_set(&cycle->conf_file, NGX_CONF_PATH); |
| } |
| |
| if (ngx_conf_full_name(cycle, &cycle->conf_file, 0) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| for (p = cycle->conf_file.data + cycle->conf_file.len - 1; |
| p > cycle->conf_file.data; |
| p--) |
| { |
| if (ngx_path_separator(*p)) { |
| cycle->conf_prefix.len = p - ngx_cycle->conf_file.data + 1; |
| cycle->conf_prefix.data = ngx_cycle->conf_file.data; |
| break; |
| } |
| } |
| |
| if (ngx_conf_params) { |
| cycle->conf_param.len = ngx_strlen(ngx_conf_params); |
| cycle->conf_param.data = ngx_conf_params; |
| } |
| |
| if (ngx_test_config) { |
| cycle->log->log_level = NGX_LOG_INFO; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static void * |
| ngx_core_module_create_conf(ngx_cycle_t *cycle) |
| { |
| ngx_core_conf_t *ccf; |
| |
| ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t)); |
| if (ccf == NULL) { |
| return NULL; |
| } |
| |
| /* |
| * set by ngx_pcalloc() |
| * |
| * ccf->pid = NULL; |
| * ccf->oldpid = NULL; |
| * ccf->priority = 0; |
| * ccf->cpu_affinity_auto = 0; |
| * ccf->cpu_affinity_n = 0; |
| * ccf->cpu_affinity = NULL; |
| */ |
| |
| ccf->daemon = NGX_CONF_UNSET; |
| ccf->master = NGX_CONF_UNSET; |
| ccf->timer_resolution = NGX_CONF_UNSET_MSEC; |
| |
| ccf->worker_processes = NGX_CONF_UNSET; |
| ccf->debug_points = NGX_CONF_UNSET; |
| |
| ccf->rlimit_nofile = NGX_CONF_UNSET; |
| ccf->rlimit_core = NGX_CONF_UNSET; |
| |
| ccf->user = (ngx_uid_t) NGX_CONF_UNSET_UINT; |
| ccf->group = (ngx_gid_t) NGX_CONF_UNSET_UINT; |
| |
| if (ngx_array_init(&ccf->env, cycle->pool, 1, sizeof(ngx_str_t)) |
| != NGX_OK) |
| { |
| return NULL; |
| } |
| |
| return ccf; |
| } |
| |
| |
| static char * |
| ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf) |
| { |
| ngx_core_conf_t *ccf = conf; |
| |
| ngx_conf_init_value(ccf->daemon, 1); |
| ngx_conf_init_value(ccf->master, 1); |
| ngx_conf_init_msec_value(ccf->timer_resolution, 0); |
| |
| ngx_conf_init_value(ccf->worker_processes, 1); |
| ngx_conf_init_value(ccf->debug_points, 0); |
| |
| #if (NGX_HAVE_CPU_AFFINITY) |
| |
| if (!ccf->cpu_affinity_auto |
| && ccf->cpu_affinity_n |
| && ccf->cpu_affinity_n != 1 |
| && ccf->cpu_affinity_n != (ngx_uint_t) ccf->worker_processes) |
| { |
| ngx_log_error(NGX_LOG_WARN, cycle->log, 0, |
| "the number of \"worker_processes\" is not equal to " |
| "the number of \"worker_cpu_affinity\" masks, " |
| "using last mask for remaining worker processes"); |
| } |
| |
| #endif |
| |
| |
| if (ccf->pid.len == 0) { |
| ngx_str_set(&ccf->pid, NGX_PID_PATH); |
| } |
| |
| if (ngx_conf_full_name(cycle, &ccf->pid, 0) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->oldpid.len = ccf->pid.len + sizeof(NGX_OLDPID_EXT); |
| |
| ccf->oldpid.data = ngx_pnalloc(cycle->pool, ccf->oldpid.len); |
| if (ccf->oldpid.data == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ngx_memcpy(ngx_cpymem(ccf->oldpid.data, ccf->pid.data, ccf->pid.len), |
| NGX_OLDPID_EXT, sizeof(NGX_OLDPID_EXT)); |
| |
| |
| #if !(NGX_WIN32) |
| |
| if (ccf->user == (uid_t) NGX_CONF_UNSET_UINT && geteuid() == 0) { |
| struct group *grp; |
| struct passwd *pwd; |
| |
| ngx_set_errno(0); |
| pwd = getpwnam(NGX_USER); |
| if (pwd == NULL) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
| "getpwnam(\"" NGX_USER "\") failed"); |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->username = NGX_USER; |
| ccf->user = pwd->pw_uid; |
| |
| ngx_set_errno(0); |
| grp = getgrnam(NGX_GROUP); |
| if (grp == NULL) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
| "getgrnam(\"" NGX_GROUP "\") failed"); |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->group = grp->gr_gid; |
| } |
| |
| |
| if (ccf->lock_file.len == 0) { |
| ngx_str_set(&ccf->lock_file, NGX_LOCK_PATH); |
| } |
| |
| if (ngx_conf_full_name(cycle, &ccf->lock_file, 0) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| { |
| ngx_str_t lock_file; |
| |
| lock_file = cycle->old_cycle->lock_file; |
| |
| if (lock_file.len) { |
| lock_file.len--; |
| |
| if (ccf->lock_file.len != lock_file.len |
| || ngx_strncmp(ccf->lock_file.data, lock_file.data, lock_file.len) |
| != 0) |
| { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, |
| "\"lock_file\" could not be changed, ignored"); |
| } |
| |
| cycle->lock_file.len = lock_file.len + 1; |
| lock_file.len += sizeof(".accept"); |
| |
| cycle->lock_file.data = ngx_pstrdup(cycle->pool, &lock_file); |
| if (cycle->lock_file.data == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| } else { |
| cycle->lock_file.len = ccf->lock_file.len + 1; |
| cycle->lock_file.data = ngx_pnalloc(cycle->pool, |
| ccf->lock_file.len + sizeof(".accept")); |
| if (cycle->lock_file.data == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ngx_memcpy(ngx_cpymem(cycle->lock_file.data, ccf->lock_file.data, |
| ccf->lock_file.len), |
| ".accept", sizeof(".accept")); |
| } |
| } |
| |
| #endif |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static char * |
| ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| #if (NGX_WIN32) |
| |
| ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| "\"user\" is not supported, ignored"); |
| |
| return NGX_CONF_OK; |
| |
| #else |
| |
| ngx_core_conf_t *ccf = conf; |
| |
| char *group; |
| struct passwd *pwd; |
| struct group *grp; |
| ngx_str_t *value; |
| |
| if (ccf->user != (uid_t) NGX_CONF_UNSET_UINT) { |
| return "is duplicate"; |
| } |
| |
| if (geteuid() != 0) { |
| ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| "the \"user\" directive makes sense only " |
| "if the master process runs " |
| "with super-user privileges, ignored"); |
| return NGX_CONF_OK; |
| } |
| |
| value = cf->args->elts; |
| |
| ccf->username = (char *) value[1].data; |
| |
| ngx_set_errno(0); |
| pwd = getpwnam((const char *) value[1].data); |
| if (pwd == NULL) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, |
| "getpwnam(\"%s\") failed", value[1].data); |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->user = pwd->pw_uid; |
| |
| group = (char *) ((cf->args->nelts == 2) ? value[1].data : value[2].data); |
| |
| ngx_set_errno(0); |
| grp = getgrnam(group); |
| if (grp == NULL) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, |
| "getgrnam(\"%s\") failed", group); |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->group = grp->gr_gid; |
| |
| return NGX_CONF_OK; |
| |
| #endif |
| } |
| |
| |
| static char * |
| ngx_set_env(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| ngx_core_conf_t *ccf = conf; |
| |
| ngx_str_t *value, *var; |
| ngx_uint_t i; |
| |
| var = ngx_array_push(&ccf->env); |
| if (var == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| value = cf->args->elts; |
| *var = value[1]; |
| |
| for (i = 0; i < value[1].len; i++) { |
| |
| if (value[1].data[i] == '=') { |
| |
| var->len = i; |
| |
| return NGX_CONF_OK; |
| } |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static char * |
| ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| ngx_core_conf_t *ccf = conf; |
| |
| ngx_str_t *value; |
| ngx_uint_t n, minus; |
| |
| if (ccf->priority != 0) { |
| return "is duplicate"; |
| } |
| |
| value = cf->args->elts; |
| |
| if (value[1].data[0] == '-') { |
| n = 1; |
| minus = 1; |
| |
| } else if (value[1].data[0] == '+') { |
| n = 1; |
| minus = 0; |
| |
| } else { |
| n = 0; |
| minus = 0; |
| } |
| |
| ccf->priority = ngx_atoi(&value[1].data[n], value[1].len - n); |
| if (ccf->priority == NGX_ERROR) { |
| return "invalid number"; |
| } |
| |
| if (minus) { |
| ccf->priority = -ccf->priority; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static char * |
| ngx_set_cpu_affinity(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| #if (NGX_HAVE_CPU_AFFINITY) |
| ngx_core_conf_t *ccf = conf; |
| |
| u_char ch, *p; |
| ngx_str_t *value; |
| ngx_uint_t i, n; |
| ngx_cpuset_t *mask; |
| |
| if (ccf->cpu_affinity) { |
| return "is duplicate"; |
| } |
| |
| mask = ngx_palloc(cf->pool, (cf->args->nelts - 1) * sizeof(ngx_cpuset_t)); |
| if (mask == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->cpu_affinity_n = cf->args->nelts - 1; |
| ccf->cpu_affinity = mask; |
| |
| value = cf->args->elts; |
| |
| if (ngx_strcmp(value[1].data, "auto") == 0) { |
| |
| if (cf->args->nelts > 3) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "invalid number of arguments in " |
| "\"worker_cpu_affinity\" directive"); |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->cpu_affinity_auto = 1; |
| |
| CPU_ZERO(&mask[0]); |
| for (i = 0; i < (ngx_uint_t) ngx_min(ngx_ncpu, CPU_SETSIZE); i++) { |
| CPU_SET(i, &mask[0]); |
| } |
| |
| n = 2; |
| |
| } else { |
| n = 1; |
| } |
| |
| for ( /* void */ ; n < cf->args->nelts; n++) { |
| |
| if (value[n].len > CPU_SETSIZE) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "\"worker_cpu_affinity\" supports up to %d CPUs only", |
| CPU_SETSIZE); |
| return NGX_CONF_ERROR; |
| } |
| |
| i = 0; |
| CPU_ZERO(&mask[n - 1]); |
| |
| for (p = value[n].data + value[n].len - 1; |
| p >= value[n].data; |
| p--) |
| { |
| ch = *p; |
| |
| if (ch == ' ') { |
| continue; |
| } |
| |
| i++; |
| |
| if (ch == '0') { |
| continue; |
| } |
| |
| if (ch == '1') { |
| CPU_SET(i - 1, &mask[n - 1]); |
| continue; |
| } |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "invalid character \"%c\" in \"worker_cpu_affinity\"", |
| ch); |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| #else |
| |
| ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| "\"worker_cpu_affinity\" is not supported " |
| "on this platform, ignored"); |
| #endif |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| ngx_cpuset_t * |
| ngx_get_cpu_affinity(ngx_uint_t n) |
| { |
| #if (NGX_HAVE_CPU_AFFINITY) |
| ngx_uint_t i, j; |
| ngx_cpuset_t *mask; |
| ngx_core_conf_t *ccf; |
| |
| static ngx_cpuset_t result; |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(ngx_cycle->conf_ctx, |
| ngx_core_module); |
| |
| if (ccf->cpu_affinity == NULL) { |
| return NULL; |
| } |
| |
| if (ccf->cpu_affinity_auto) { |
| mask = &ccf->cpu_affinity[ccf->cpu_affinity_n - 1]; |
| |
| for (i = 0, j = n; /* void */ ; i++) { |
| |
| if (CPU_ISSET(i % CPU_SETSIZE, mask) && j-- == 0) { |
| break; |
| } |
| |
| if (i == CPU_SETSIZE && j == n) { |
| /* empty mask */ |
| return NULL; |
| } |
| |
| /* void */ |
| } |
| |
| CPU_ZERO(&result); |
| CPU_SET(i % CPU_SETSIZE, &result); |
| |
| return &result; |
| } |
| |
| if (ccf->cpu_affinity_n > n) { |
| return &ccf->cpu_affinity[n]; |
| } |
| |
| return &ccf->cpu_affinity[ccf->cpu_affinity_n - 1]; |
| |
| #else |
| |
| return NULL; |
| |
| #endif |
| } |
| |
| |
| static char * |
| ngx_set_worker_processes(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| ngx_str_t *value; |
| ngx_core_conf_t *ccf; |
| |
| ccf = (ngx_core_conf_t *) conf; |
| |
| if (ccf->worker_processes != NGX_CONF_UNSET) { |
| return "is duplicate"; |
| } |
| |
| value = cf->args->elts; |
| |
| if (ngx_strcmp(value[1].data, "auto") == 0) { |
| ccf->worker_processes = ngx_ncpu; |
| return NGX_CONF_OK; |
| } |
| |
| ccf->worker_processes = ngx_atoi(value[1].data, value[1].len); |
| |
| if (ccf->worker_processes == NGX_ERROR) { |
| return "invalid value"; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static char * |
| ngx_load_module(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| #if (NGX_HAVE_DLOPEN) |
| void *handle; |
| char **names, **order; |
| ngx_str_t *value, file; |
| ngx_uint_t i; |
| ngx_module_t *module, **modules; |
| ngx_pool_cleanup_t *cln; |
| |
| if (cf->cycle->modules_used) { |
| return "is specified too late"; |
| } |
| |
| value = cf->args->elts; |
| |
| file = value[1]; |
| |
| if (ngx_conf_full_name(cf->cycle, &file, 0) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| cln = ngx_pool_cleanup_add(cf->cycle->pool, 0); |
| if (cln == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| handle = ngx_dlopen(file.data); |
| if (handle == NULL) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| ngx_dlopen_n " \"%s\" failed (%s)", |
| file.data, ngx_dlerror()); |
| return NGX_CONF_ERROR; |
| } |
| |
| cln->handler = ngx_unload_module; |
| cln->data = handle; |
| |
| modules = ngx_dlsym(handle, "ngx_modules"); |
| if (modules == NULL) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| ngx_dlsym_n " \"%V\", \"%s\" failed (%s)", |
| &value[1], "ngx_modules", ngx_dlerror()); |
| return NGX_CONF_ERROR; |
| } |
| |
| names = ngx_dlsym(handle, "ngx_module_names"); |
| if (names == NULL) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| ngx_dlsym_n " \"%V\", \"%s\" failed (%s)", |
| &value[1], "ngx_module_names", ngx_dlerror()); |
| return NGX_CONF_ERROR; |
| } |
| |
| order = ngx_dlsym(handle, "ngx_module_order"); |
| |
| for (i = 0; modules[i]; i++) { |
| module = modules[i]; |
| module->name = names[i]; |
| |
| if (ngx_add_module(cf, &file, module, order) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_CORE, cf->log, 0, "module: %s i:%ui", |
| module->name, module->index); |
| } |
| |
| return NGX_CONF_OK; |
| |
| #else |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "\"load_module\" is not supported " |
| "on this platform"); |
| return NGX_CONF_ERROR; |
| |
| #endif |
| } |
| |
| |
| #if (NGX_HAVE_DLOPEN) |
| |
| static void |
| ngx_unload_module(void *data) |
| { |
| void *handle = data; |
| |
| if (ngx_dlclose(handle) != 0) { |
| ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| ngx_dlclose_n " failed (%s)", ngx_dlerror()); |
| } |
| } |
| |
| #endif |
