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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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21 static ngx_command_t ngx_core_commands[] = {
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22
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23 { ngx_string("daemon"),
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24 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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25 ngx_conf_set_flag_slot,
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26 0,
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27 offsetof(ngx_core_conf_t, daemon),
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28 NULL },
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29
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30 { ngx_string("master_process"),
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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, master),
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35 NULL },
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36
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37 { ngx_string("worker_processes"),
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38 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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39 ngx_conf_set_num_slot,
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40 0,
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41 offsetof(ngx_core_conf_t, worker_processes),
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42 NULL },
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43
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44 #if (NGX_THREADS)
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45
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46 { ngx_string("worker_threads"),
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47 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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48 ngx_conf_set_num_slot,
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49 0,
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50 offsetof(ngx_core_conf_t, worker_threads),
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51 NULL },
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52
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53 { ngx_string("thread_stack_size"),
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54 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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55 ngx_conf_set_size_slot,
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56 0,
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57 offsetof(ngx_core_conf_t, thread_stack_size),
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58 NULL },
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59
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60 #endif
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61
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62 { ngx_string("user"),
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63 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12,
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64 ngx_set_user,
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65 0,
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66 0,
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67 NULL },
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68
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69 { ngx_string("pid"),
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70 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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71 ngx_conf_set_str_slot,
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72 0,
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73 offsetof(ngx_core_conf_t, pid),
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74 NULL },
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75
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76 ngx_null_command
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77 };
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78
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79
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80 static ngx_core_module_t ngx_core_module_ctx = {
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81 ngx_string("core"),
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82 ngx_core_module_create_conf,
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83 ngx_core_module_init_conf
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84 };
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85
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86
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87 ngx_module_t ngx_core_module = {
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88 NGX_MODULE,
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89 &ngx_core_module_ctx, /* module context */
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90 ngx_core_commands, /* module directives */
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91 NGX_CORE_MODULE, /* module type */
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92 NULL, /* init module */
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93 NULL /* init process */
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94 };
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95
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96
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97 ngx_uint_t ngx_max_module;
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98
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99
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2
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100 int main(int argc, char *const *argv, char *const *envp)
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0
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101 {
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2
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102 ngx_int_t i;
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103 ngx_log_t *log;
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104 ngx_cycle_t *cycle, init_cycle;
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105 ngx_core_conf_t *ccf;
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0
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106
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4
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107 #if (NGX_FREEBSD)
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0
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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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4
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115 #if (NGX_PCRE)
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0
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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 if (!(init_cycle.pool = ngx_create_pool(1024, log))) {
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136 return 1;
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137 }
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138
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4
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139 if (ngx_save_argv(&init_cycle, argc, argv) == NGX_ERROR) {
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2
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140 return 1;
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141 }
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142
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4
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143 if (ngx_getopt(&init_cycle, argc, ngx_argv) == NGX_ERROR) {
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0
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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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4
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178 cycle->conf_file.data);
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0
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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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2
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222 ngx_master_process_cycle(cycle);
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0
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223
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224 } else {
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2
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225 ngx_single_process_cycle(cycle);
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0
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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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2
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279 char *env[3], *var, *p;
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0
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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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2
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303
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304 #if (NGX_SETPROCTITLE_USES_ENV)
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305
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306 /* allocate spare 300 bytes for the new binary process title */
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307
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308 env[1] = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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309 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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310 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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311 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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312 "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
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313
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314 env[2] = NULL;
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315
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316 #else
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317
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0
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318 env[1] = NULL;
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2
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319
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320 #endif
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321
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0
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322 ctx.envp = (char *const *) &env;
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323
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324 pid = ngx_execute(cycle, &ctx);
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325
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326 ngx_free(var);
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327
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328 return pid;
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329 }
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330
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331
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2
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332 static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv)
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0
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333 {
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334 ngx_int_t i;
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335
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2
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336 for (i = 1; i < argc; i++) {
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337 if (argv[i][0] != '-') {
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0
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338 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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339 "invalid option: \"%s\"", argv[i]);
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0
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340 return NGX_ERROR;
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341 }
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342
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2
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343 switch (argv[i][1]) {
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0
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344
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345 case 't':
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346 ngx_test_config = 1;
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347 break;
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348
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349 case 'c':
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2
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350 if (argv[i + 1] == NULL) {
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0
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351 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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352 "the option: \"%s\" requires file name",
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2
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353 argv[i]);
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0
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354 return NGX_ERROR;
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355 }
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356
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2
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357 cycle->conf_file.data = (u_char *) argv[++i];
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0
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358 cycle->conf_file.len = ngx_strlen(cycle->conf_file.data);
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359 break;
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360
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361 default:
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362 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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2
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363 "invalid option: \"%s\"", argv[i]);
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0
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364 return NGX_ERROR;
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365 }
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366 }
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367
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368 if (cycle->conf_file.data == NULL) {
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369 cycle->conf_file.len = sizeof(NGX_CONF_PATH) - 1;
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370 cycle->conf_file.data = (u_char *) NGX_CONF_PATH;
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371 }
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372
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373 if (ngx_conf_full_name(cycle, &cycle->conf_file) == NGX_ERROR) {
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374 return NGX_ERROR;
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375 }
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376
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377 return NGX_OK;
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378 }
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379
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380
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2
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381 static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv)
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382 {
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383 size_t len;
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384 ngx_int_t i;
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385
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386 ngx_os_argv = (char **) argv;
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387
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388 ngx_argc = argc;
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389
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4
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390 #if (NGX_FREEBSD)
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2
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391
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392 ngx_argv = (char **) argv;
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393
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394 #else
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395
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396 if (!(ngx_argv = ngx_alloc((argc + 1) * sizeof(char *), cycle->log))) {
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397 return NGX_ERROR;
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398 }
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399
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400 for (i = 0; i < argc; i++) {
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401 len = ngx_strlen(argv[i]) + 1;
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402
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403 if (!(ngx_argv[i] = ngx_alloc(len, cycle->log))) {
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404 return NGX_ERROR;
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405 }
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406
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407 ngx_cpystrn((u_char *) ngx_argv[i], (u_char *) argv[i], len);
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408 }
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409
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410 ngx_argv[i] = NULL;
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411
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412 #endif
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413
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414 return NGX_OK;
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415 }
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416
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417
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0
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418 static void *ngx_core_module_create_conf(ngx_cycle_t *cycle)
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419 {
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420 ngx_core_conf_t *ccf;
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421
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422 if (!(ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t)))) {
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423 return NULL;
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424 }
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425 /* set by pcalloc()
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426 *
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427 * ccf->pid = NULL;
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428 * ccf->newpid = NULL;
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429 */
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430 ccf->daemon = NGX_CONF_UNSET;
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431 ccf->master = NGX_CONF_UNSET;
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432 ccf->worker_processes = NGX_CONF_UNSET;
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433 #if (NGX_THREADS)
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434 ccf->worker_threads = NGX_CONF_UNSET;
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435 ccf->thread_stack_size = NGX_CONF_UNSET;
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436 #endif
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437 ccf->user = (ngx_uid_t) NGX_CONF_UNSET;
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438 ccf->group = (ngx_gid_t) NGX_CONF_UNSET;
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439
|
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440 return ccf;
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|
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441 }
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|
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442
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443
|
|
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444 static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
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445 {
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446 ngx_core_conf_t *ccf = conf;
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447
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448 #if !(WIN32)
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449 struct passwd *pwd;
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450 struct group *grp;
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451 #endif
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452
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453 ngx_conf_init_value(ccf->daemon, 1);
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454 ngx_conf_init_value(ccf->master, 1);
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455 ngx_conf_init_value(ccf->worker_processes, 1);
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456
|
|
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457 #if (NGX_THREADS)
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458 ngx_conf_init_value(ccf->worker_threads, 0);
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|
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459 ngx_threads_n = ccf->worker_threads;
|
|
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460 ngx_conf_init_size_value(ccf->thread_stack_size, 2 * 1024 * 1024);
|
|
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461 #endif
|
|
|
462
|
|
|
463 #if !(WIN32)
|
|
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464
|
|
|
465 if (ccf->user == (uid_t) NGX_CONF_UNSET) {
|
|
|
466
|
|
4
|
467 pwd = getpwnam(NGX_USER);
|
|
0
|
468 if (pwd == NULL) {
|
|
|
469 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
4
|
470 "getpwnam(\"" NGX_USER "\") failed");
|
|
0
|
471 return NGX_CONF_ERROR;
|
|
|
472 }
|
|
|
473
|
|
|
474 ccf->user = pwd->pw_uid;
|
|
|
475
|
|
4
|
476 grp = getgrnam(NGX_GROUP);
|
|
0
|
477 if (grp == NULL) {
|
|
|
478 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
4
|
479 "getgrnam(\"" NGX_GROUP "\") failed");
|
|
0
|
480 return NGX_CONF_ERROR;
|
|
|
481 }
|
|
|
482
|
|
|
483 ccf->group = grp->gr_gid;
|
|
|
484 }
|
|
|
485
|
|
|
486 if (ccf->pid.len == 0) {
|
|
|
487 ccf->pid.len = sizeof(NGX_PID_PATH) - 1;
|
|
2
|
488 ccf->pid.data = (u_char *) NGX_PID_PATH;
|
|
0
|
489 }
|
|
|
490
|
|
|
491 if (ngx_conf_full_name(cycle, &ccf->pid) == NGX_ERROR) {
|
|
|
492 return NGX_CONF_ERROR;
|
|
|
493 }
|
|
|
494
|
|
|
495 ccf->newpid.len = ccf->pid.len + sizeof(NGX_NEWPID_EXT);
|
|
|
496
|
|
|
497 if (!(ccf->newpid.data = ngx_palloc(cycle->pool, ccf->newpid.len))) {
|
|
|
498 return NGX_CONF_ERROR;
|
|
|
499 }
|
|
|
500
|
|
|
501 ngx_memcpy(ngx_cpymem(ccf->newpid.data, ccf->pid.data, ccf->pid.len),
|
|
|
502 NGX_NEWPID_EXT, sizeof(NGX_NEWPID_EXT));
|
|
|
503
|
|
|
504 #endif
|
|
|
505
|
|
|
506 return NGX_CONF_OK;
|
|
|
507 }
|
|
|
508
|
|
|
509
|
|
|
510 static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
511 {
|
|
|
512 #if (WIN32)
|
|
|
513
|
|
|
514 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
515 "\"user\" is not supported, ignored");
|
|
|
516
|
|
|
517 return NGX_CONF_OK;
|
|
|
518
|
|
|
519 #else
|
|
|
520
|
|
|
521 ngx_core_conf_t *ccf = conf;
|
|
|
522
|
|
4
|
523 char *group;
|
|
0
|
524 struct passwd *pwd;
|
|
|
525 struct group *grp;
|
|
|
526 ngx_str_t *value;
|
|
|
527
|
|
|
528 if (ccf->user != (uid_t) NGX_CONF_UNSET) {
|
|
|
529 return "is duplicate";
|
|
|
530 }
|
|
|
531
|
|
4
|
532 if (geteuid() != 0) {
|
|
|
533 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
534 "the \"user\" directive makes sense only "
|
|
|
535 "if the master process runs "
|
|
|
536 "with super-user privileges, ignored");
|
|
|
537 return NGX_CONF_OK;
|
|
|
538 }
|
|
|
539
|
|
0
|
540 value = (ngx_str_t *) cf->args->elts;
|
|
|
541
|
|
|
542 pwd = getpwnam((const char *) value[1].data);
|
|
|
543 if (pwd == NULL) {
|
|
|
544 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
2
|
545 "getpwnam(\"%s\") failed", value[1].data);
|
|
0
|
546 return NGX_CONF_ERROR;
|
|
|
547 }
|
|
|
548
|
|
|
549 ccf->user = pwd->pw_uid;
|
|
|
550
|
|
4
|
551 group = (char *) ((cf->args->nelts == 2) ? value[1].data : value[2].data);
|
|
0
|
552
|
|
4
|
553 grp = getgrnam(group);
|
|
0
|
554 if (grp == NULL) {
|
|
|
555 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
4
|
556 "getgrnam(\"%s\") failed", group);
|
|
0
|
557 return NGX_CONF_ERROR;
|
|
|
558 }
|
|
|
559
|
|
|
560 ccf->group = grp->gr_gid;
|
|
|
561
|
|
|
562 return NGX_CONF_OK;
|
|
|
563
|
|
|
564 #endif
|
|
|
565 }
|
