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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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2
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14 static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv);
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15 static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv);
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0
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16 static void *ngx_core_module_create_conf(ngx_cycle_t *cycle);
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17 static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf);
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18 static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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19
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20
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10
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21 static ngx_conf_enum_t ngx_debug_points[] = {
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22 { ngx_string("stop"), NGX_DEBUG_POINTS_STOP },
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23 { ngx_string("abort"), NGX_DEBUG_POINTS_ABORT },
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24 { ngx_null_string, 0 }
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25 };
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26
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27
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0
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28 static ngx_command_t ngx_core_commands[] = {
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29
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30 { ngx_string("daemon"),
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31 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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32 ngx_conf_set_flag_slot,
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33 0,
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34 offsetof(ngx_core_conf_t, daemon),
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35 NULL },
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36
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37 { ngx_string("master_process"),
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38 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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39 ngx_conf_set_flag_slot,
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40 0,
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41 offsetof(ngx_core_conf_t, master),
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42 NULL },
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43
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44 { ngx_string("worker_processes"),
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45 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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46 ngx_conf_set_num_slot,
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47 0,
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48 offsetof(ngx_core_conf_t, worker_processes),
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49 NULL },
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50
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10
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51 { ngx_string("debug_points"),
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52 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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53 ngx_conf_set_enum_slot,
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54 0,
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55 offsetof(ngx_core_conf_t, debug_points),
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56 &ngx_debug_points },
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57
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0
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58 #if (NGX_THREADS)
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59
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60 { ngx_string("worker_threads"),
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61 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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62 ngx_conf_set_num_slot,
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63 0,
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64 offsetof(ngx_core_conf_t, worker_threads),
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65 NULL },
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66
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67 { ngx_string("thread_stack_size"),
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68 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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69 ngx_conf_set_size_slot,
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70 0,
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71 offsetof(ngx_core_conf_t, thread_stack_size),
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72 NULL },
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73
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74 #endif
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75
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76 { ngx_string("user"),
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77 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12,
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78 ngx_set_user,
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79 0,
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80 0,
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81 NULL },
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82
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83 { ngx_string("pid"),
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84 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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85 ngx_conf_set_str_slot,
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86 0,
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87 offsetof(ngx_core_conf_t, pid),
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88 NULL },
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89
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90 ngx_null_command
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91 };
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92
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93
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94 static ngx_core_module_t ngx_core_module_ctx = {
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95 ngx_string("core"),
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96 ngx_core_module_create_conf,
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97 ngx_core_module_init_conf
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98 };
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99
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100
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101 ngx_module_t ngx_core_module = {
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102 NGX_MODULE,
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103 &ngx_core_module_ctx, /* module context */
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104 ngx_core_commands, /* module directives */
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105 NGX_CORE_MODULE, /* module type */
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106 NULL, /* init module */
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107 NULL /* init process */
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108 };
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109
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110
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111 ngx_uint_t ngx_max_module;
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112
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113
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10
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114
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18
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115 int main(int argc, char *const *argv)
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0
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116 {
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2
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117 ngx_int_t i;
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118 ngx_log_t *log;
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119 ngx_cycle_t *cycle, init_cycle;
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120 ngx_core_conf_t *ccf;
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0
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121
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4
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122 #if (NGX_FREEBSD)
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0
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123 ngx_debug_init();
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124 #endif
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125
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126 /* TODO */ ngx_max_sockets = -1;
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127
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128 ngx_time_init();
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129
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4
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130 #if (NGX_PCRE)
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0
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131 ngx_regex_init();
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132 #endif
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133
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134 ngx_pid = ngx_getpid();
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135
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10
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136 if (!(log = ngx_log_init())) {
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0
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137 return 1;
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138 }
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139
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140 #if (NGX_OPENSSL)
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141 ngx_ssl_init(log);
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142 #endif
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143
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144 /* init_cycle->log is required for signal handlers and ngx_getopt() */
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145
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146 ngx_memzero(&init_cycle, sizeof(ngx_cycle_t));
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147 init_cycle.log = log;
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148 ngx_cycle = &init_cycle;
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149
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150 if (!(init_cycle.pool = ngx_create_pool(1024, log))) {
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151 return 1;
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152 }
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153
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4
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154 if (ngx_save_argv(&init_cycle, argc, argv) == NGX_ERROR) {
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2
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155 return 1;
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156 }
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157
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4
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158 if (ngx_getopt(&init_cycle, argc, ngx_argv) == NGX_ERROR) {
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0
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159 return 1;
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160 }
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161
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162 if (ngx_test_config) {
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163 log->log_level = NGX_LOG_INFO;
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164 }
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165
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166 if (ngx_os_init(log) == NGX_ERROR) {
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167 return 1;
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168 }
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169
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170 if (ngx_add_inherited_sockets(&init_cycle) == NGX_ERROR) {
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171 return 1;
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172 }
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173
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174 ngx_max_module = 0;
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175 for (i = 0; ngx_modules[i]; i++) {
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176 ngx_modules[i]->index = ngx_max_module++;
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177 }
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178
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179 cycle = ngx_init_cycle(&init_cycle);
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180 if (cycle == NULL) {
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181 if (ngx_test_config) {
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182 ngx_log_error(NGX_LOG_EMERG, log, 0,
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10
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183 "the configuration file \"%s\" test failed",
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0
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184 init_cycle.conf_file.data);
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185 }
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186
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187 return 1;
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188 }
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189
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190 if (ngx_test_config) {
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191 ngx_log_error(NGX_LOG_INFO, log, 0,
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10
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192 "the configuration file \"%s\" was tested successfully",
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4
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193 cycle->conf_file.data);
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0
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194 return 0;
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195 }
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196
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197 ngx_os_status(cycle->log);
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198
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199 ngx_cycle = cycle;
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200
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201 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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202
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203 ngx_process = ccf->master ? NGX_PROCESS_MASTER : NGX_PROCESS_SINGLE;
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204
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10
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205 #if (NGX_WIN32)
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0
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206
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207 #if 0
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208
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209 TODO:
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210
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211 if (ccf->run_as_service) {
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212 if (ngx_service(cycle->log) == NGX_ERROR) {
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213 return 1;
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214 }
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215
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216 return 0;
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217 }
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218 #endif
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219
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220 #else
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221
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222 if (!ngx_inherited && ccf->daemon) {
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223 if (ngx_daemon(cycle->log) == NGX_ERROR) {
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224 return 1;
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225 }
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226
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227 ngx_daemonized = 1;
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228 }
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229
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230 if (ngx_create_pidfile(cycle, NULL) == NGX_ERROR) {
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231 return 1;
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232 }
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233
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234 #endif
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235
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236 if (ngx_process == NGX_PROCESS_MASTER) {
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2
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237 ngx_master_process_cycle(cycle);
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0
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238
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239 } else {
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2
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240 ngx_single_process_cycle(cycle);
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0
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241 }
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242
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243 return 0;
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244 }
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245
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246
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247 static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle)
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248 {
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249 u_char *p, *v, *inherited;
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250 ngx_socket_t s;
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251 ngx_listening_t *ls;
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252
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253 inherited = (u_char *) getenv(NGINX_VAR);
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254
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255 if (inherited == NULL) {
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256 return NGX_OK;
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257 }
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258
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10
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259 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
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0
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260 "using inherited sockets from \"%s\"", inherited);
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261
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10
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262 if (ngx_array_init(&cycle->listening, cycle->pool, 10,
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263 sizeof(ngx_listening_t)) == NGX_ERROR)
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264 {
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265 return NGX_ERROR;
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266 }
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0
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267
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268 for (p = inherited, v = p; *p; p++) {
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269 if (*p == ':' || *p == ';') {
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270 s = ngx_atoi(v, p - v);
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271 if (s == NGX_ERROR) {
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272 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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273 "invalid socket number \"%s\" in "
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274 NGINX_VAR " enviroment variable, "
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275 "ignoring the rest of the variable", v);
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276 break;
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277 }
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278
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279 v = p + 1;
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280
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10
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281 if (!(ls = ngx_array_push(&cycle->listening))) {
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0
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282 return NGX_ERROR;
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283 }
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284
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285 ls->fd = s;
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286 }
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287 }
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288
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289 ngx_inherited = 1;
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290
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291 return ngx_set_inherited_sockets(cycle);
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292 }
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293
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294
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295 ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv)
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296 {
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10
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297 char *env[3], *var;
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298 u_char *p;
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0
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299 ngx_uint_t i;
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300 ngx_pid_t pid;
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301 ngx_exec_ctx_t ctx;
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302 ngx_listening_t *ls;
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303
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304 ctx.path = argv[0];
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305 ctx.name = "new binary process";
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306 ctx.argv = argv;
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307
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308 var = ngx_alloc(sizeof(NGINX_VAR)
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309 + cycle->listening.nelts * (NGX_INT32_LEN + 1) + 2,
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310 cycle->log);
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311
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10
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312 p = ngx_cpymem(var, NGINX_VAR "=", sizeof(NGINX_VAR));
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0
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313
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314 ls = cycle->listening.elts;
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315 for (i = 0; i < cycle->listening.nelts; i++) {
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10
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316 p = ngx_sprintf(p, "%ud;", ls[i].fd);
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0
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317 }
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318
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10
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319 *p = '\0';
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320
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0
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321 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "inherited: %s", var);
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322
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323 env[0] = var;
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2
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324
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325 #if (NGX_SETPROCTITLE_USES_ENV)
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326
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10
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327 /* allocate the spare 300 bytes for the new binary process title */
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2
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328
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329 env[1] = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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330 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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331 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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332 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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333 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
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334
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335 env[2] = NULL;
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336
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337 #else
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338
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0
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339 env[1] = NULL;
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2
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340
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341 #endif
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342
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0
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343 ctx.envp = (char *const *) &env;
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344
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345 pid = ngx_execute(cycle, &ctx);
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346
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347 ngx_free(var);
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348
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349 return pid;
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350 }
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351
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352
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2
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353 static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv)
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0
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354 {
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355 ngx_int_t i;
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356
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2
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357 for (i = 1; i < argc; i++) {
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358 if (argv[i][0] != '-') {
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0
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359 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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360 "invalid option: \"%s\"", argv[i]);
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0
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361 return NGX_ERROR;
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362 }
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363
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2
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364 switch (argv[i][1]) {
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0
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365
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366 case 't':
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367 ngx_test_config = 1;
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368 break;
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369
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370 case 'c':
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2
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371 if (argv[i + 1] == NULL) {
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0
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372 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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373 "the option: \"%s\" requires file name",
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2
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374 argv[i]);
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0
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375 return NGX_ERROR;
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376 }
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377
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2
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378 cycle->conf_file.data = (u_char *) argv[++i];
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0
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379 cycle->conf_file.len = ngx_strlen(cycle->conf_file.data);
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380 break;
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381
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382 default:
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383 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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384 "invalid option: \"%s\"", argv[i]);
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0
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385 return NGX_ERROR;
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386 }
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387 }
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388
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389 if (cycle->conf_file.data == NULL) {
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390 cycle->conf_file.len = sizeof(NGX_CONF_PATH) - 1;
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391 cycle->conf_file.data = (u_char *) NGX_CONF_PATH;
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392 }
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393
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394 if (ngx_conf_full_name(cycle, &cycle->conf_file) == NGX_ERROR) {
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395 return NGX_ERROR;
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396 }
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397
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398 return NGX_OK;
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399 }
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400
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401
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2
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402 static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv)
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403 {
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404 size_t len;
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405 ngx_int_t i;
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406
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407 ngx_os_argv = (char **) argv;
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408
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409 ngx_argc = argc;
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410
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4
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411 #if (NGX_FREEBSD)
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2
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412
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413 ngx_argv = (char **) argv;
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414
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415 #else
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416
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|
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417 if (!(ngx_argv = ngx_alloc((argc + 1) * sizeof(char *), cycle->log))) {
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418 return NGX_ERROR;
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|
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419 }
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|
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420
|
|
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421 for (i = 0; i < argc; i++) {
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422 len = ngx_strlen(argv[i]) + 1;
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423
|
|
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424 if (!(ngx_argv[i] = ngx_alloc(len, cycle->log))) {
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|
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425 return NGX_ERROR;
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|
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426 }
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|
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427
|
|
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428 ngx_cpystrn((u_char *) ngx_argv[i], (u_char *) argv[i], len);
|
|
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429 }
|
|
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430
|
|
|
431 ngx_argv[i] = NULL;
|
|
|
432
|
|
|
433 #endif
|
|
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434
|
|
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435 return NGX_OK;
|
|
|
436 }
|
|
|
437
|
|
|
438
|
|
0
|
439 static void *ngx_core_module_create_conf(ngx_cycle_t *cycle)
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|
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440 {
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|
|
441 ngx_core_conf_t *ccf;
|
|
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442
|
|
|
443 if (!(ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t)))) {
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|
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444 return NULL;
|
|
|
445 }
|
|
|
446 /* set by pcalloc()
|
|
|
447 *
|
|
|
448 * ccf->pid = NULL;
|
|
|
449 * ccf->newpid = NULL;
|
|
|
450 */
|
|
|
451 ccf->daemon = NGX_CONF_UNSET;
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|
|
452 ccf->master = NGX_CONF_UNSET;
|
|
|
453 ccf->worker_processes = NGX_CONF_UNSET;
|
|
10
|
454 ccf->debug_points = NGX_CONF_UNSET;
|
|
|
455 ccf->user = (ngx_uid_t) NGX_CONF_UNSET;
|
|
|
456 ccf->group = (ngx_gid_t) NGX_CONF_UNSET;
|
|
0
|
457 #if (NGX_THREADS)
|
|
|
458 ccf->worker_threads = NGX_CONF_UNSET;
|
|
10
|
459 ccf->thread_stack_size = NGX_CONF_UNSET_SIZE;
|
|
0
|
460 #endif
|
|
|
461
|
|
|
462 return ccf;
|
|
|
463 }
|
|
|
464
|
|
|
465
|
|
|
466 static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
467 {
|
|
|
468 ngx_core_conf_t *ccf = conf;
|
|
|
469
|
|
10
|
470 #if !(NGX_WIN32)
|
|
0
|
471 struct passwd *pwd;
|
|
|
472 struct group *grp;
|
|
|
473 #endif
|
|
|
474
|
|
|
475 ngx_conf_init_value(ccf->daemon, 1);
|
|
|
476 ngx_conf_init_value(ccf->master, 1);
|
|
|
477 ngx_conf_init_value(ccf->worker_processes, 1);
|
|
10
|
478 ngx_conf_init_value(ccf->debug_points, 0);
|
|
0
|
479
|
|
|
480 #if (NGX_THREADS)
|
|
|
481 ngx_conf_init_value(ccf->worker_threads, 0);
|
|
|
482 ngx_threads_n = ccf->worker_threads;
|
|
|
483 ngx_conf_init_size_value(ccf->thread_stack_size, 2 * 1024 * 1024);
|
|
|
484 #endif
|
|
|
485
|
|
10
|
486 #if !(NGX_WIN32)
|
|
0
|
487
|
|
10
|
488 if (ccf->user == (uid_t) NGX_CONF_UNSET && geteuid() == 0) {
|
|
0
|
489
|
|
4
|
490 pwd = getpwnam(NGX_USER);
|
|
0
|
491 if (pwd == NULL) {
|
|
|
492 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
4
|
493 "getpwnam(\"" NGX_USER "\") failed");
|
|
0
|
494 return NGX_CONF_ERROR;
|
|
|
495 }
|
|
|
496
|
|
|
497 ccf->user = pwd->pw_uid;
|
|
|
498
|
|
4
|
499 grp = getgrnam(NGX_GROUP);
|
|
0
|
500 if (grp == NULL) {
|
|
|
501 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
4
|
502 "getgrnam(\"" NGX_GROUP "\") failed");
|
|
0
|
503 return NGX_CONF_ERROR;
|
|
|
504 }
|
|
|
505
|
|
|
506 ccf->group = grp->gr_gid;
|
|
|
507 }
|
|
|
508
|
|
|
509 if (ccf->pid.len == 0) {
|
|
|
510 ccf->pid.len = sizeof(NGX_PID_PATH) - 1;
|
|
2
|
511 ccf->pid.data = (u_char *) NGX_PID_PATH;
|
|
0
|
512 }
|
|
|
513
|
|
|
514 if (ngx_conf_full_name(cycle, &ccf->pid) == NGX_ERROR) {
|
|
|
515 return NGX_CONF_ERROR;
|
|
|
516 }
|
|
|
517
|
|
|
518 ccf->newpid.len = ccf->pid.len + sizeof(NGX_NEWPID_EXT);
|
|
|
519
|
|
|
520 if (!(ccf->newpid.data = ngx_palloc(cycle->pool, ccf->newpid.len))) {
|
|
|
521 return NGX_CONF_ERROR;
|
|
|
522 }
|
|
|
523
|
|
|
524 ngx_memcpy(ngx_cpymem(ccf->newpid.data, ccf->pid.data, ccf->pid.len),
|
|
|
525 NGX_NEWPID_EXT, sizeof(NGX_NEWPID_EXT));
|
|
|
526
|
|
|
527 #endif
|
|
|
528
|
|
|
529 return NGX_CONF_OK;
|
|
|
530 }
|
|
|
531
|
|
|
532
|
|
|
533 static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
534 {
|
|
10
|
535 #if (NGX_WIN32)
|
|
0
|
536
|
|
|
537 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
538 "\"user\" is not supported, ignored");
|
|
|
539
|
|
|
540 return NGX_CONF_OK;
|
|
|
541
|
|
|
542 #else
|
|
|
543
|
|
|
544 ngx_core_conf_t *ccf = conf;
|
|
|
545
|
|
4
|
546 char *group;
|
|
0
|
547 struct passwd *pwd;
|
|
|
548 struct group *grp;
|
|
|
549 ngx_str_t *value;
|
|
|
550
|
|
|
551 if (ccf->user != (uid_t) NGX_CONF_UNSET) {
|
|
|
552 return "is duplicate";
|
|
|
553 }
|
|
|
554
|
|
4
|
555 if (geteuid() != 0) {
|
|
|
556 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
557 "the \"user\" directive makes sense only "
|
|
|
558 "if the master process runs "
|
|
|
559 "with super-user privileges, ignored");
|
|
|
560 return NGX_CONF_OK;
|
|
|
561 }
|
|
|
562
|
|
0
|
563 value = (ngx_str_t *) cf->args->elts;
|
|
|
564
|
|
|
565 pwd = getpwnam((const char *) value[1].data);
|
|
|
566 if (pwd == NULL) {
|
|
|
567 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
2
|
568 "getpwnam(\"%s\") failed", value[1].data);
|
|
0
|
569 return NGX_CONF_ERROR;
|
|
|
570 }
|
|
|
571
|
|
|
572 ccf->user = pwd->pw_uid;
|
|
|
573
|
|
4
|
574 group = (char *) ((cf->args->nelts == 2) ? value[1].data : value[2].data);
|
|
0
|
575
|
|
4
|
576 grp = getgrnam(group);
|
|
0
|
577 if (grp == NULL) {
|
|
|
578 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
4
|
579 "getgrnam(\"%s\") failed", group);
|
|
0
|
580 return NGX_CONF_ERROR;
|
|
|
581 }
|
|
|
582
|
|
|
583 ccf->group = grp->gr_gid;
|
|
|
584
|
|
|
585 return NGX_CONF_OK;
|
|
|
586
|
|
|
587 #endif
|
|
|
588 }
|
