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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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22
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19 static char *ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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0
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20
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21
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10
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22 static ngx_conf_enum_t ngx_debug_points[] = {
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23 { ngx_string("stop"), NGX_DEBUG_POINTS_STOP },
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24 { ngx_string("abort"), NGX_DEBUG_POINTS_ABORT },
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25 { ngx_null_string, 0 }
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26 };
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27
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28
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0
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29 static ngx_command_t ngx_core_commands[] = {
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30
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31 { ngx_string("daemon"),
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32 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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33 ngx_conf_set_flag_slot,
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34 0,
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35 offsetof(ngx_core_conf_t, daemon),
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36 NULL },
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37
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38 { ngx_string("master_process"),
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39 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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40 ngx_conf_set_flag_slot,
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41 0,
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42 offsetof(ngx_core_conf_t, master),
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43 NULL },
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44
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45 { ngx_string("worker_processes"),
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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_processes),
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50 NULL },
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51
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10
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52 { ngx_string("debug_points"),
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53 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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54 ngx_conf_set_enum_slot,
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55 0,
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56 offsetof(ngx_core_conf_t, debug_points),
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57 &ngx_debug_points },
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58
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0
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59 #if (NGX_THREADS)
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60
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61 { ngx_string("worker_threads"),
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62 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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63 ngx_conf_set_num_slot,
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64 0,
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65 offsetof(ngx_core_conf_t, worker_threads),
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66 NULL },
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67
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68 { ngx_string("thread_stack_size"),
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69 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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70 ngx_conf_set_size_slot,
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71 0,
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72 offsetof(ngx_core_conf_t, thread_stack_size),
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73 NULL },
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74
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75 #endif
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76
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77 { ngx_string("user"),
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78 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12,
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79 ngx_set_user,
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80 0,
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81 0,
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82 NULL },
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83
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22
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84 { ngx_string("worker_priority"),
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85 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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86 ngx_set_priority,
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87 0,
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88 0,
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89 NULL },
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90
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0
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91 { ngx_string("pid"),
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92 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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93 ngx_conf_set_str_slot,
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94 0,
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95 offsetof(ngx_core_conf_t, pid),
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96 NULL },
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97
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98 ngx_null_command
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99 };
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100
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101
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102 static ngx_core_module_t ngx_core_module_ctx = {
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103 ngx_string("core"),
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104 ngx_core_module_create_conf,
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105 ngx_core_module_init_conf
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106 };
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107
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108
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109 ngx_module_t ngx_core_module = {
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110 NGX_MODULE,
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111 &ngx_core_module_ctx, /* module context */
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112 ngx_core_commands, /* module directives */
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113 NGX_CORE_MODULE, /* module type */
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114 NULL, /* init module */
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115 NULL /* init process */
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116 };
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117
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118
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119 ngx_uint_t ngx_max_module;
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120
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121
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10
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122
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18
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123 int main(int argc, char *const *argv)
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0
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124 {
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2
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125 ngx_int_t i;
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126 ngx_log_t *log;
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127 ngx_cycle_t *cycle, init_cycle;
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128 ngx_core_conf_t *ccf;
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0
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129
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4
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130 #if (NGX_FREEBSD)
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0
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131 ngx_debug_init();
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132 #endif
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133
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134 /* TODO */ ngx_max_sockets = -1;
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135
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136 ngx_time_init();
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137
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4
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138 #if (NGX_PCRE)
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0
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139 ngx_regex_init();
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140 #endif
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141
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142 ngx_pid = ngx_getpid();
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143
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10
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144 if (!(log = ngx_log_init())) {
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0
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145 return 1;
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146 }
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147
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148 #if (NGX_OPENSSL)
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149 ngx_ssl_init(log);
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150 #endif
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151
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152 /* init_cycle->log is required for signal handlers and ngx_getopt() */
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153
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154 ngx_memzero(&init_cycle, sizeof(ngx_cycle_t));
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155 init_cycle.log = log;
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156 ngx_cycle = &init_cycle;
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157
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158 if (!(init_cycle.pool = ngx_create_pool(1024, log))) {
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159 return 1;
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160 }
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161
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4
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162 if (ngx_save_argv(&init_cycle, argc, argv) == NGX_ERROR) {
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2
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163 return 1;
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164 }
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165
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4
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166 if (ngx_getopt(&init_cycle, argc, ngx_argv) == NGX_ERROR) {
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0
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167 return 1;
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168 }
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169
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170 if (ngx_test_config) {
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171 log->log_level = NGX_LOG_INFO;
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172 }
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173
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174 if (ngx_os_init(log) == NGX_ERROR) {
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175 return 1;
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176 }
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177
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178 if (ngx_add_inherited_sockets(&init_cycle) == NGX_ERROR) {
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179 return 1;
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180 }
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181
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182 ngx_max_module = 0;
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183 for (i = 0; ngx_modules[i]; i++) {
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184 ngx_modules[i]->index = ngx_max_module++;
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185 }
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186
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187 cycle = ngx_init_cycle(&init_cycle);
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188 if (cycle == NULL) {
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189 if (ngx_test_config) {
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190 ngx_log_error(NGX_LOG_EMERG, log, 0,
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10
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191 "the configuration file \"%s\" test failed",
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0
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192 init_cycle.conf_file.data);
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193 }
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194
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195 return 1;
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196 }
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197
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198 if (ngx_test_config) {
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199 ngx_log_error(NGX_LOG_INFO, log, 0,
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10
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200 "the configuration file \"%s\" was tested successfully",
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4
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201 cycle->conf_file.data);
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0
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202 return 0;
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203 }
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204
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205 ngx_os_status(cycle->log);
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206
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207 ngx_cycle = cycle;
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208
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209 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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210
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211 ngx_process = ccf->master ? NGX_PROCESS_MASTER : NGX_PROCESS_SINGLE;
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212
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10
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213 #if (NGX_WIN32)
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0
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214
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215 #if 0
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216
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217 TODO:
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218
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219 if (ccf->run_as_service) {
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220 if (ngx_service(cycle->log) == NGX_ERROR) {
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221 return 1;
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222 }
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223
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224 return 0;
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225 }
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226 #endif
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227
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228 #else
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229
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230 if (!ngx_inherited && ccf->daemon) {
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231 if (ngx_daemon(cycle->log) == NGX_ERROR) {
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232 return 1;
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233 }
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234
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235 ngx_daemonized = 1;
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236 }
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237
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238 if (ngx_create_pidfile(cycle, NULL) == NGX_ERROR) {
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239 return 1;
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240 }
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241
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242 #endif
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243
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244 if (ngx_process == NGX_PROCESS_MASTER) {
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2
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245 ngx_master_process_cycle(cycle);
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0
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246
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247 } else {
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2
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248 ngx_single_process_cycle(cycle);
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0
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249 }
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250
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251 return 0;
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252 }
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253
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254
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255 static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle)
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256 {
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257 u_char *p, *v, *inherited;
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258 ngx_socket_t s;
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259 ngx_listening_t *ls;
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260
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261 inherited = (u_char *) getenv(NGINX_VAR);
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262
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263 if (inherited == NULL) {
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264 return NGX_OK;
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265 }
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266
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10
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267 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
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0
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268 "using inherited sockets from \"%s\"", inherited);
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269
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10
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270 if (ngx_array_init(&cycle->listening, cycle->pool, 10,
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271 sizeof(ngx_listening_t)) == NGX_ERROR)
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272 {
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273 return NGX_ERROR;
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274 }
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0
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275
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276 for (p = inherited, v = p; *p; p++) {
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277 if (*p == ':' || *p == ';') {
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278 s = ngx_atoi(v, p - v);
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279 if (s == NGX_ERROR) {
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280 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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281 "invalid socket number \"%s\" in "
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282 NGINX_VAR " enviroment variable, "
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283 "ignoring the rest of the variable", v);
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284 break;
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285 }
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286
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287 v = p + 1;
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288
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10
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289 if (!(ls = ngx_array_push(&cycle->listening))) {
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0
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290 return NGX_ERROR;
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291 }
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292
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293 ls->fd = s;
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294 }
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295 }
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296
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297 ngx_inherited = 1;
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298
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299 return ngx_set_inherited_sockets(cycle);
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300 }
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301
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302
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303 ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv)
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304 {
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10
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305 char *env[3], *var;
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306 u_char *p;
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0
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307 ngx_uint_t i;
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308 ngx_pid_t pid;
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309 ngx_exec_ctx_t ctx;
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310 ngx_listening_t *ls;
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311
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312 ctx.path = argv[0];
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313 ctx.name = "new binary process";
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314 ctx.argv = argv;
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315
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316 var = ngx_alloc(sizeof(NGINX_VAR)
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317 + cycle->listening.nelts * (NGX_INT32_LEN + 1) + 2,
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318 cycle->log);
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319
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10
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320 p = ngx_cpymem(var, NGINX_VAR "=", sizeof(NGINX_VAR));
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0
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321
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322 ls = cycle->listening.elts;
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323 for (i = 0; i < cycle->listening.nelts; i++) {
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10
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324 p = ngx_sprintf(p, "%ud;", ls[i].fd);
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0
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325 }
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326
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10
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327 *p = '\0';
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328
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0
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329 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "inherited: %s", var);
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330
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331 env[0] = var;
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2
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332
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333 #if (NGX_SETPROCTITLE_USES_ENV)
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334
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10
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335 /* allocate the spare 300 bytes for the new binary process title */
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2
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336
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337 env[1] = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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338 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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339 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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340 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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341 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
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342
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343 env[2] = NULL;
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344
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345 #else
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346
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0
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347 env[1] = NULL;
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2
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348
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349 #endif
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350
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0
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351 ctx.envp = (char *const *) &env;
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352
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353 pid = ngx_execute(cycle, &ctx);
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354
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355 ngx_free(var);
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356
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357 return pid;
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358 }
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359
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360
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2
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361 static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv)
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0
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362 {
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363 ngx_int_t i;
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364
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2
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365 for (i = 1; i < argc; i++) {
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366 if (argv[i][0] != '-') {
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0
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367 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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368 "invalid option: \"%s\"", argv[i]);
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0
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369 return NGX_ERROR;
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370 }
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371
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2
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372 switch (argv[i][1]) {
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0
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373
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374 case 't':
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375 ngx_test_config = 1;
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376 break;
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377
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378 case 'c':
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2
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379 if (argv[i + 1] == NULL) {
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0
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380 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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381 "the option: \"%s\" requires file name",
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2
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382 argv[i]);
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0
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383 return NGX_ERROR;
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384 }
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385
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2
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386 cycle->conf_file.data = (u_char *) argv[++i];
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0
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387 cycle->conf_file.len = ngx_strlen(cycle->conf_file.data);
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388 break;
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389
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390 default:
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391 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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392 "invalid option: \"%s\"", argv[i]);
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0
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393 return NGX_ERROR;
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394 }
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395 }
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396
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397 if (cycle->conf_file.data == NULL) {
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398 cycle->conf_file.len = sizeof(NGX_CONF_PATH) - 1;
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399 cycle->conf_file.data = (u_char *) NGX_CONF_PATH;
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400 }
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401
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402 if (ngx_conf_full_name(cycle, &cycle->conf_file) == NGX_ERROR) {
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403 return NGX_ERROR;
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404 }
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405
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406 return NGX_OK;
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407 }
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408
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409
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2
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410 static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv)
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411 {
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412 size_t len;
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413 ngx_int_t i;
|
|
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414
|
|
|
415 ngx_os_argv = (char **) argv;
|
|
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416
|
|
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417 ngx_argc = argc;
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|
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418
|
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4
|
419 #if (NGX_FREEBSD)
|
|
2
|
420
|
|
|
421 ngx_argv = (char **) argv;
|
|
|
422
|
|
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423 #else
|
|
|
424
|
|
|
425 if (!(ngx_argv = ngx_alloc((argc + 1) * sizeof(char *), cycle->log))) {
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426 return NGX_ERROR;
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|
|
427 }
|
|
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428
|
|
|
429 for (i = 0; i < argc; i++) {
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|
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430 len = ngx_strlen(argv[i]) + 1;
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431
|
|
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432 if (!(ngx_argv[i] = ngx_alloc(len, cycle->log))) {
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|
|
433 return NGX_ERROR;
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|
|
434 }
|
|
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435
|
|
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436 ngx_cpystrn((u_char *) ngx_argv[i], (u_char *) argv[i], len);
|
|
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437 }
|
|
|
438
|
|
|
439 ngx_argv[i] = NULL;
|
|
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440
|
|
|
441 #endif
|
|
|
442
|
|
|
443 return NGX_OK;
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|
|
444 }
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|
|
445
|
|
|
446
|
|
0
|
447 static void *ngx_core_module_create_conf(ngx_cycle_t *cycle)
|
|
|
448 {
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|
|
449 ngx_core_conf_t *ccf;
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450
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|
|
451 if (!(ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t)))) {
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|
|
452 return NULL;
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|
|
453 }
|
|
|
454 /* set by pcalloc()
|
|
|
455 *
|
|
|
456 * ccf->pid = NULL;
|
|
|
457 * ccf->newpid = NULL;
|
|
22
|
458 * ccf->priority = 0;
|
|
0
|
459 */
|
|
|
460 ccf->daemon = NGX_CONF_UNSET;
|
|
|
461 ccf->master = NGX_CONF_UNSET;
|
|
|
462 ccf->worker_processes = NGX_CONF_UNSET;
|
|
10
|
463 ccf->debug_points = NGX_CONF_UNSET;
|
|
|
464 ccf->user = (ngx_uid_t) NGX_CONF_UNSET;
|
|
|
465 ccf->group = (ngx_gid_t) NGX_CONF_UNSET;
|
|
0
|
466 #if (NGX_THREADS)
|
|
|
467 ccf->worker_threads = NGX_CONF_UNSET;
|
|
10
|
468 ccf->thread_stack_size = NGX_CONF_UNSET_SIZE;
|
|
0
|
469 #endif
|
|
|
470
|
|
|
471 return ccf;
|
|
|
472 }
|
|
|
473
|
|
|
474
|
|
|
475 static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
476 {
|
|
|
477 ngx_core_conf_t *ccf = conf;
|
|
|
478
|
|
10
|
479 #if !(NGX_WIN32)
|
|
0
|
480 struct passwd *pwd;
|
|
|
481 struct group *grp;
|
|
|
482 #endif
|
|
|
483
|
|
|
484 ngx_conf_init_value(ccf->daemon, 1);
|
|
|
485 ngx_conf_init_value(ccf->master, 1);
|
|
|
486 ngx_conf_init_value(ccf->worker_processes, 1);
|
|
10
|
487 ngx_conf_init_value(ccf->debug_points, 0);
|
|
0
|
488
|
|
|
489 #if (NGX_THREADS)
|
|
|
490 ngx_conf_init_value(ccf->worker_threads, 0);
|
|
|
491 ngx_threads_n = ccf->worker_threads;
|
|
|
492 ngx_conf_init_size_value(ccf->thread_stack_size, 2 * 1024 * 1024);
|
|
|
493 #endif
|
|
|
494
|
|
10
|
495 #if !(NGX_WIN32)
|
|
0
|
496
|
|
10
|
497 if (ccf->user == (uid_t) NGX_CONF_UNSET && geteuid() == 0) {
|
|
0
|
498
|
|
4
|
499 pwd = getpwnam(NGX_USER);
|
|
0
|
500 if (pwd == NULL) {
|
|
|
501 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
4
|
502 "getpwnam(\"" NGX_USER "\") failed");
|
|
0
|
503 return NGX_CONF_ERROR;
|
|
|
504 }
|
|
|
505
|
|
22
|
506 ccf->username = NGX_USER;
|
|
0
|
507 ccf->user = pwd->pw_uid;
|
|
|
508
|
|
4
|
509 grp = getgrnam(NGX_GROUP);
|
|
0
|
510 if (grp == NULL) {
|
|
|
511 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
4
|
512 "getgrnam(\"" NGX_GROUP "\") failed");
|
|
0
|
513 return NGX_CONF_ERROR;
|
|
|
514 }
|
|
|
515
|
|
|
516 ccf->group = grp->gr_gid;
|
|
|
517 }
|
|
|
518
|
|
|
519 if (ccf->pid.len == 0) {
|
|
|
520 ccf->pid.len = sizeof(NGX_PID_PATH) - 1;
|
|
2
|
521 ccf->pid.data = (u_char *) NGX_PID_PATH;
|
|
0
|
522 }
|
|
|
523
|
|
|
524 if (ngx_conf_full_name(cycle, &ccf->pid) == NGX_ERROR) {
|
|
|
525 return NGX_CONF_ERROR;
|
|
|
526 }
|
|
|
527
|
|
|
528 ccf->newpid.len = ccf->pid.len + sizeof(NGX_NEWPID_EXT);
|
|
|
529
|
|
|
530 if (!(ccf->newpid.data = ngx_palloc(cycle->pool, ccf->newpid.len))) {
|
|
|
531 return NGX_CONF_ERROR;
|
|
|
532 }
|
|
|
533
|
|
|
534 ngx_memcpy(ngx_cpymem(ccf->newpid.data, ccf->pid.data, ccf->pid.len),
|
|
|
535 NGX_NEWPID_EXT, sizeof(NGX_NEWPID_EXT));
|
|
|
536
|
|
|
537 #endif
|
|
|
538
|
|
|
539 return NGX_CONF_OK;
|
|
|
540 }
|
|
|
541
|
|
|
542
|
|
|
543 static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
544 {
|
|
10
|
545 #if (NGX_WIN32)
|
|
0
|
546
|
|
|
547 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
548 "\"user\" is not supported, ignored");
|
|
|
549
|
|
|
550 return NGX_CONF_OK;
|
|
|
551
|
|
|
552 #else
|
|
|
553
|
|
|
554 ngx_core_conf_t *ccf = conf;
|
|
|
555
|
|
4
|
556 char *group;
|
|
0
|
557 struct passwd *pwd;
|
|
|
558 struct group *grp;
|
|
|
559 ngx_str_t *value;
|
|
|
560
|
|
|
561 if (ccf->user != (uid_t) NGX_CONF_UNSET) {
|
|
|
562 return "is duplicate";
|
|
|
563 }
|
|
|
564
|
|
4
|
565 if (geteuid() != 0) {
|
|
|
566 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
567 "the \"user\" directive makes sense only "
|
|
|
568 "if the master process runs "
|
|
|
569 "with super-user privileges, ignored");
|
|
|
570 return NGX_CONF_OK;
|
|
|
571 }
|
|
|
572
|
|
0
|
573 value = (ngx_str_t *) cf->args->elts;
|
|
|
574
|
|
22
|
575 ccf->username = (char *) value[1].data;
|
|
|
576
|
|
0
|
577 pwd = getpwnam((const char *) value[1].data);
|
|
|
578 if (pwd == NULL) {
|
|
|
579 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
2
|
580 "getpwnam(\"%s\") failed", value[1].data);
|
|
0
|
581 return NGX_CONF_ERROR;
|
|
|
582 }
|
|
|
583
|
|
|
584 ccf->user = pwd->pw_uid;
|
|
|
585
|
|
4
|
586 group = (char *) ((cf->args->nelts == 2) ? value[1].data : value[2].data);
|
|
0
|
587
|
|
4
|
588 grp = getgrnam(group);
|
|
0
|
589 if (grp == NULL) {
|
|
|
590 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
4
|
591 "getgrnam(\"%s\") failed", group);
|
|
0
|
592 return NGX_CONF_ERROR;
|
|
|
593 }
|
|
|
594
|
|
|
595 ccf->group = grp->gr_gid;
|
|
|
596
|
|
|
597 return NGX_CONF_OK;
|
|
|
598
|
|
|
599 #endif
|
|
|
600 }
|
|
22
|
601
|
|
|
602
|
|
|
603 static char *ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
604 {
|
|
|
605 ngx_core_conf_t *ccf = conf;
|
|
|
606
|
|
|
607 ngx_str_t *value;
|
|
|
608 ngx_uint_t n, minus;
|
|
|
609
|
|
|
610 if (ccf->priority != 0) {
|
|
|
611 return "is duplicate";
|
|
|
612 }
|
|
|
613
|
|
|
614 value = cf->args->elts;
|
|
|
615
|
|
|
616 if (value[1].data[0] == '-') {
|
|
|
617 n = 1;
|
|
|
618 minus = 1;
|
|
|
619
|
|
|
620 } else if (value[1].data[0] == '+') {
|
|
|
621 n = 1;
|
|
|
622 minus = 0;
|
|
|
623
|
|
|
624 } else {
|
|
|
625 n = 0;
|
|
|
626 minus = 0;
|
|
|
627 }
|
|
|
628
|
|
|
629 ccf->priority = ngx_atoi(&value[1].data[n], value[1].len - n);
|
|
|
630 if (ccf->priority == NGX_ERROR) {
|
|
|
631 return "invalid number";
|
|
|
632 }
|
|
|
633
|
|
|
634 if (minus) {
|
|
|
635 ccf->priority = -ccf->priority;
|
|
|
636 }
|
|
|
637
|
|
|
638 return NGX_CONF_OK;
|
|
|
639 }
|
