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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <nginx.h>
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11
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12
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13 static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle);
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14 static ngx_int_t ngx_getopt(ngx_master_ctx_t *ctx, ngx_cycle_t *cycle);
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15 static void *ngx_core_module_create_conf(ngx_cycle_t *cycle);
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16 static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf);
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17 static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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18
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19
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20 static ngx_command_t ngx_core_commands[] = {
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21
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22 { ngx_string("daemon"),
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23 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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24 ngx_conf_set_flag_slot,
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25 0,
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26 offsetof(ngx_core_conf_t, daemon),
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27 NULL },
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28
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29 { ngx_string("master_process"),
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30 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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31 ngx_conf_set_flag_slot,
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32 0,
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33 offsetof(ngx_core_conf_t, master),
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34 NULL },
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35
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36 { ngx_string("worker_processes"),
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37 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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38 ngx_conf_set_num_slot,
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39 0,
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40 offsetof(ngx_core_conf_t, worker_processes),
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41 NULL },
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42
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43 #if (NGX_THREADS)
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44
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45 { ngx_string("worker_threads"),
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46 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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47 ngx_conf_set_num_slot,
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48 0,
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49 offsetof(ngx_core_conf_t, worker_threads),
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50 NULL },
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51
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52 { ngx_string("thread_stack_size"),
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53 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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54 ngx_conf_set_size_slot,
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55 0,
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56 offsetof(ngx_core_conf_t, thread_stack_size),
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57 NULL },
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58
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59 #endif
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60
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61 { ngx_string("user"),
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62 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12,
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63 ngx_set_user,
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64 0,
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65 0,
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66 NULL },
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67
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68 { ngx_string("pid"),
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69 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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70 ngx_conf_set_str_slot,
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71 0,
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72 offsetof(ngx_core_conf_t, pid),
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73 NULL },
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74
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75 ngx_null_command
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76 };
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77
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78
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79 static ngx_core_module_t ngx_core_module_ctx = {
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80 ngx_string("core"),
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81 ngx_core_module_create_conf,
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82 ngx_core_module_init_conf
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83 };
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84
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85
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86 ngx_module_t ngx_core_module = {
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87 NGX_MODULE,
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88 &ngx_core_module_ctx, /* module context */
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89 ngx_core_commands, /* module directives */
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90 NGX_CORE_MODULE, /* module type */
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91 NULL, /* init module */
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92 NULL /* init process */
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93 };
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94
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95
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96 ngx_uint_t ngx_max_module;
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97
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98
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99 int main(int argc, char *const *argv)
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100 {
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101 ngx_int_t i;
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102 ngx_log_t *log;
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103 ngx_cycle_t *cycle, init_cycle;
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104 ngx_core_conf_t *ccf;
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105 ngx_master_ctx_t ctx;
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106
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107 #if defined __FreeBSD__
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108 ngx_debug_init();
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109 #endif
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110
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111 /* TODO */ ngx_max_sockets = -1;
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112
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113 ngx_time_init();
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114
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115 #if (HAVE_PCRE)
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116 ngx_regex_init();
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117 #endif
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118
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119 ngx_pid = ngx_getpid();
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120
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121 if (!(log = ngx_log_init_stderr())) {
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122 return 1;
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123 }
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124
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125 #if (NGX_OPENSSL)
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126 ngx_ssl_init(log);
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127 #endif
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128
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129 /* init_cycle->log is required for signal handlers and ngx_getopt() */
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130
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131 ngx_memzero(&init_cycle, sizeof(ngx_cycle_t));
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132 init_cycle.log = log;
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133 ngx_cycle = &init_cycle;
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134
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135 ngx_memzero(&ctx, sizeof(ngx_master_ctx_t));
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136 ctx.argc = argc;
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137 ctx.argv = argv;
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138
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139 if (!(init_cycle.pool = ngx_create_pool(1024, log))) {
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140 return 1;
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141 }
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142
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143 if (ngx_getopt(&ctx, &init_cycle) == NGX_ERROR) {
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144 return 1;
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145 }
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146
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147 if (ngx_test_config) {
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148 log->log_level = NGX_LOG_INFO;
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149 }
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150
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151 if (ngx_os_init(log) == NGX_ERROR) {
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152 return 1;
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153 }
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154
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155 if (ngx_add_inherited_sockets(&init_cycle) == NGX_ERROR) {
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156 return 1;
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157 }
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158
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159 ngx_max_module = 0;
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160 for (i = 0; ngx_modules[i]; i++) {
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161 ngx_modules[i]->index = ngx_max_module++;
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162 }
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163
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164 cycle = ngx_init_cycle(&init_cycle);
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165 if (cycle == NULL) {
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166 if (ngx_test_config) {
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167 ngx_log_error(NGX_LOG_EMERG, log, 0,
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168 "the configuration file %s test failed",
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169 init_cycle.conf_file.data);
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170 }
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171
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172 return 1;
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173 }
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174
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175 if (ngx_test_config) {
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176 ngx_log_error(NGX_LOG_INFO, log, 0,
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177 "the configuration file %s was tested successfully",
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178 init_cycle.conf_file.data);
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179 return 0;
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180 }
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181
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182 ngx_os_status(cycle->log);
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183
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184 ngx_cycle = cycle;
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185
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186 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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187
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188 ngx_process = ccf->master ? NGX_PROCESS_MASTER : NGX_PROCESS_SINGLE;
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189
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190 #if (WIN32)
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191
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192 #if 0
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193
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194 TODO:
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195
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196 if (ccf->run_as_service) {
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197 if (ngx_service(cycle->log) == NGX_ERROR) {
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198 return 1;
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199 }
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200
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201 return 0;
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202 }
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203 #endif
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204
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205 #else
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206
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207 if (!ngx_inherited && ccf->daemon) {
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208 if (ngx_daemon(cycle->log) == NGX_ERROR) {
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209 return 1;
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210 }
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211
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212 ngx_daemonized = 1;
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213 }
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214
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215 if (ngx_create_pidfile(cycle, NULL) == NGX_ERROR) {
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216 return 1;
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217 }
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218
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219 #endif
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220
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221 if (ngx_process == NGX_PROCESS_MASTER) {
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222 ngx_master_process_cycle(cycle, &ctx);
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223
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224 } else {
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225 ngx_single_process_cycle(cycle, &ctx);
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226 }
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227
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228 return 0;
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229 }
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230
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231
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232 static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle)
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233 {
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234 u_char *p, *v, *inherited;
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235 ngx_socket_t s;
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236 ngx_listening_t *ls;
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237
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238 inherited = (u_char *) getenv(NGINX_VAR);
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239
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240 if (inherited == NULL) {
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241 return NGX_OK;
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242 }
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243
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244 ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
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245 "using inherited sockets from \"%s\"", inherited);
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246
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247 ngx_init_array(cycle->listening, cycle->pool,
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248 10, sizeof(ngx_listening_t), NGX_ERROR);
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249
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250 for (p = inherited, v = p; *p; p++) {
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251 if (*p == ':' || *p == ';') {
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252 s = ngx_atoi(v, p - v);
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253 if (s == NGX_ERROR) {
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254 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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255 "invalid socket number \"%s\" in "
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256 NGINX_VAR " enviroment variable, "
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257 "ignoring the rest of the variable", v);
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258 break;
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259 }
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260
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261 v = p + 1;
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262
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263 if (!(ls = ngx_push_array(&cycle->listening))) {
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264 return NGX_ERROR;
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265 }
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266
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267 ls->fd = s;
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268 }
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269 }
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270
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271 ngx_inherited = 1;
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272
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273 return ngx_set_inherited_sockets(cycle);
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274 }
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275
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276
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277 ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv)
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278 {
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279 char *env[2], *var, *p;
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280 ngx_uint_t i;
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281 ngx_pid_t pid;
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282 ngx_exec_ctx_t ctx;
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283 ngx_listening_t *ls;
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284
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285 ctx.path = argv[0];
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286 ctx.name = "new binary process";
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287 ctx.argv = argv;
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288
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289 var = ngx_alloc(sizeof(NGINX_VAR)
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290 + cycle->listening.nelts * (NGX_INT32_LEN + 1) + 2,
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291 cycle->log);
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292
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293 p = (char *) ngx_cpymem(var, NGINX_VAR "=", sizeof(NGINX_VAR));
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294
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295 ls = cycle->listening.elts;
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296 for (i = 0; i < cycle->listening.nelts; i++) {
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297 p += ngx_snprintf(p, NGX_INT32_LEN + 2, "%u;", ls[i].fd);
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298 }
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299
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300 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "inherited: %s", var);
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301
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302 env[0] = var;
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303 env[1] = NULL;
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304 ctx.envp = (char *const *) &env;
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305
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306 pid = ngx_execute(cycle, &ctx);
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307
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308 ngx_free(var);
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309
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310 return pid;
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311 }
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312
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313
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314 static ngx_int_t ngx_getopt(ngx_master_ctx_t *ctx, ngx_cycle_t *cycle)
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315 {
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316 ngx_int_t i;
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317
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318 for (i = 1; i < ctx->argc; i++) {
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319 if (ctx->argv[i][0] != '-') {
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320 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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321 "invalid option: \"%s\"", ctx->argv[i]);
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322 return NGX_ERROR;
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323 }
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324
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325 switch (ctx->argv[i][1]) {
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326
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327 case 't':
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328 ngx_test_config = 1;
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329 break;
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330
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331 case 'c':
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332 if (ctx->argv[i + 1] == NULL) {
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333 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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334 "the option: \"%s\" requires file name",
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335 ctx->argv[i]);
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336 return NGX_ERROR;
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337 }
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338
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339 cycle->conf_file.data = (u_char *) ctx->argv[++i];
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340 cycle->conf_file.len = ngx_strlen(cycle->conf_file.data);
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341 break;
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342
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343 default:
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344 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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345 "invalid option: \"%s\"", ctx->argv[i]);
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346 return NGX_ERROR;
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347 }
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348 }
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349
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350 if (cycle->conf_file.data == NULL) {
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351 cycle->conf_file.len = sizeof(NGX_CONF_PATH) - 1;
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352 cycle->conf_file.data = (u_char *) NGX_CONF_PATH;
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353 }
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354
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355 if (ngx_conf_full_name(cycle, &cycle->conf_file) == NGX_ERROR) {
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356 return NGX_ERROR;
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357 }
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358
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359 return NGX_OK;
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360 }
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361
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362
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363 static void *ngx_core_module_create_conf(ngx_cycle_t *cycle)
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364 {
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365 ngx_core_conf_t *ccf;
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366
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367 if (!(ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t)))) {
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368 return NULL;
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369 }
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370 /* set by pcalloc()
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371 *
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372 * ccf->pid = NULL;
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373 * ccf->newpid = NULL;
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374 */
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375 ccf->daemon = NGX_CONF_UNSET;
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376 ccf->master = NGX_CONF_UNSET;
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377 ccf->worker_processes = NGX_CONF_UNSET;
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378 #if (NGX_THREADS)
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379 ccf->worker_threads = NGX_CONF_UNSET;
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380 ccf->thread_stack_size = NGX_CONF_UNSET;
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381 #endif
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382 ccf->user = (ngx_uid_t) NGX_CONF_UNSET;
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383 ccf->group = (ngx_gid_t) NGX_CONF_UNSET;
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384
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385 return ccf;
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386 }
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387
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388
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389 static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
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390 {
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391 ngx_core_conf_t *ccf = conf;
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392
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393 #if !(WIN32)
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394 struct passwd *pwd;
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395 struct group *grp;
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396 #endif
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397
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398 ngx_conf_init_value(ccf->daemon, 1);
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399 ngx_conf_init_value(ccf->master, 1);
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400 ngx_conf_init_value(ccf->worker_processes, 1);
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401
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402 #if (NGX_THREADS)
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403 ngx_conf_init_value(ccf->worker_threads, 0);
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404 ngx_threads_n = ccf->worker_threads;
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405 ngx_conf_init_size_value(ccf->thread_stack_size, 2 * 1024 * 1024);
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406 #endif
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407
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408 #if !(WIN32)
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409
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410 if (ccf->user == (uid_t) NGX_CONF_UNSET) {
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411
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412 pwd = getpwnam("nobody");
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413 if (pwd == NULL) {
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414 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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415 "getpwnam(\"nobody\") failed");
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416 return NGX_CONF_ERROR;
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417 }
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418
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419 ccf->user = pwd->pw_uid;
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420
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421 grp = getgrnam("nobody");
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422 if (grp == NULL) {
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423 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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424 "getgrnam(\"nobody\") failed");
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425 return NGX_CONF_ERROR;
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426 }
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427
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428 ccf->group = grp->gr_gid;
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429 }
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430
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431 if (ccf->pid.len == 0) {
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432 ccf->pid.len = sizeof(NGX_PID_PATH) - 1;
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433 ccf->pid.data = NGX_PID_PATH;
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434 }
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435
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436 if (ngx_conf_full_name(cycle, &ccf->pid) == NGX_ERROR) {
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437 return NGX_CONF_ERROR;
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|
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438 }
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439
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440 ccf->newpid.len = ccf->pid.len + sizeof(NGX_NEWPID_EXT);
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441
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442 if (!(ccf->newpid.data = ngx_palloc(cycle->pool, ccf->newpid.len))) {
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443 return NGX_CONF_ERROR;
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|
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444 }
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445
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446 ngx_memcpy(ngx_cpymem(ccf->newpid.data, ccf->pid.data, ccf->pid.len),
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|
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447 NGX_NEWPID_EXT, sizeof(NGX_NEWPID_EXT));
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448
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449 #endif
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450
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451 return NGX_CONF_OK;
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|
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452 }
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453
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454
|
|
|
455 static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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456 {
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|
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457 #if (WIN32)
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458
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459 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
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|
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460 "\"user\" is not supported, ignored");
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|
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461
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462 return NGX_CONF_OK;
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|
463
|
|
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464 #else
|
|
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465
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|
|
466 ngx_core_conf_t *ccf = conf;
|
|
|
467
|
|
|
468 struct passwd *pwd;
|
|
|
469 struct group *grp;
|
|
|
470 ngx_str_t *value;
|
|
|
471
|
|
|
472 if (ccf->user != (uid_t) NGX_CONF_UNSET) {
|
|
|
473 return "is duplicate";
|
|
|
474 }
|
|
|
475
|
|
|
476 value = (ngx_str_t *) cf->args->elts;
|
|
|
477
|
|
|
478 pwd = getpwnam((const char *) value[1].data);
|
|
|
479 if (pwd == NULL) {
|
|
|
480 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
|
481 "getpwnam(%s) failed", value[1].data);
|
|
|
482 return NGX_CONF_ERROR;
|
|
|
483 }
|
|
|
484
|
|
|
485 ccf->user = pwd->pw_uid;
|
|
|
486
|
|
|
487 if (cf->args->nelts == 2) {
|
|
|
488 return NGX_CONF_OK;
|
|
|
489 }
|
|
|
490
|
|
|
491 grp = getgrnam((const char *) value[2].data);
|
|
|
492 if (grp == NULL) {
|
|
|
493 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
|
494 "getgrnam(%s) failed", value[1].data);
|
|
|
495 return NGX_CONF_ERROR;
|
|
|
496 }
|
|
|
497
|
|
|
498 ccf->group = grp->gr_gid;
|
|
|
499
|
|
|
500 return NGX_CONF_OK;
|
|
|
501
|
|
|
502 #endif
|
|
|
503 }
|
