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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
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11
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28
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12 static ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2);
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0
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13 static void ngx_clean_old_cycles(ngx_event_t *ev);
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14
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15
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16 volatile ngx_cycle_t *ngx_cycle;
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17 ngx_array_t ngx_old_cycles;
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18
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19 static ngx_pool_t *ngx_temp_pool;
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20 static ngx_event_t ngx_cleaner_event;
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21
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22 ngx_uint_t ngx_test_config;
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23
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24 #if (NGX_THREADS)
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25 ngx_tls_key_t ngx_core_tls_key;
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26 #endif
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27
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28
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29 /* STUB NAME */
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30 static ngx_connection_t dumb;
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31 /* STUB */
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32
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33 #ifdef NGX_ERROR_LOG_PATH
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34 static ngx_str_t error_log = ngx_string(NGX_ERROR_LOG_PATH);
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35 #else
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36 static ngx_str_t error_log = ngx_null_string;
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37 #endif
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38
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39
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40 ngx_cycle_t *ngx_init_cycle(ngx_cycle_t *old_cycle)
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41 {
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72
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42 void *rv;
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43 ngx_uint_t i, n, failed;
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44 ngx_log_t *log;
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45 ngx_conf_t conf;
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46 ngx_pool_t *pool;
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47 ngx_cycle_t *cycle, **old;
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48 ngx_socket_t fd;
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49 ngx_list_part_t *part;
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50 ngx_open_file_t *file;
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51 ngx_listening_t *ls, *nls;
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52 ngx_core_conf_t *ccf;
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53 ngx_core_module_t *module;
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54 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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55 struct accept_filter_arg af;
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56 #endif
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57 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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58 int timeout;
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59 #endif
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0
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60
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61 log = old_cycle->log;
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62
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56
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63 pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log);
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50
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64 if (pool == NULL) {
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0
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65 return NULL;
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66 }
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67 pool->log = log;
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68
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50
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69 cycle = ngx_pcalloc(pool, sizeof(ngx_cycle_t));
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70 if (cycle == NULL) {
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0
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71 ngx_destroy_pool(pool);
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72 return NULL;
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73 }
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50
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74
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0
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75 cycle->pool = pool;
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76 cycle->log = log;
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77 cycle->old_cycle = old_cycle;
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78 cycle->conf_file = old_cycle->conf_file;
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79 cycle->root.len = sizeof(NGX_PREFIX) - 1;
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80 cycle->root.data = (u_char *) NGX_PREFIX;
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81
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82
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83 n = old_cycle->pathes.nelts ? old_cycle->pathes.nelts : 10;
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50
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84
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85 cycle->pathes.elts = ngx_pcalloc(pool, n * sizeof(ngx_path_t *));
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86 if (cycle->pathes.elts == NULL) {
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0
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87 ngx_destroy_pool(pool);
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88 return NULL;
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89 }
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50
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90
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0
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91 cycle->pathes.nelts = 0;
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92 cycle->pathes.size = sizeof(ngx_path_t *);
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93 cycle->pathes.nalloc = n;
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94 cycle->pathes.pool = pool;
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95
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96
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97 if (old_cycle->open_files.part.nelts) {
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98 n = old_cycle->open_files.part.nelts;
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99 for (part = old_cycle->open_files.part.next; part; part = part->next) {
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100 n += part->nelts;
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101 }
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102
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103 } else {
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104 n = 20;
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105 }
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106
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107 if (ngx_list_init(&cycle->open_files, pool, n, sizeof(ngx_open_file_t))
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108 == NGX_ERROR)
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109 {
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110 ngx_destroy_pool(pool);
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111 return NULL;
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112 }
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113
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114
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50
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115 cycle->new_log = ngx_log_create_errlog(cycle, NULL);
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116 if (cycle->new_log == NULL) {
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0
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117 ngx_destroy_pool(pool);
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118 return NULL;
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119 }
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120
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121 cycle->new_log->file->name = error_log;
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122
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123
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124 n = old_cycle->listening.nelts ? old_cycle->listening.nelts : 10;
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50
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125
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0
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126 cycle->listening.elts = ngx_pcalloc(pool, n * sizeof(ngx_listening_t));
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127 if (cycle->listening.elts == NULL) {
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128 ngx_destroy_pool(pool);
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129 return NULL;
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130 }
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50
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131
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0
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132 cycle->listening.nelts = 0;
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133 cycle->listening.size = sizeof(ngx_listening_t);
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134 cycle->listening.nalloc = n;
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135 cycle->listening.pool = pool;
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136
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137
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138 cycle->conf_ctx = ngx_pcalloc(pool, ngx_max_module * sizeof(void *));
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139 if (cycle->conf_ctx == NULL) {
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140 ngx_destroy_pool(pool);
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141 return NULL;
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142 }
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143
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144
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145 for (i = 0; ngx_modules[i]; i++) {
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146 if (ngx_modules[i]->type != NGX_CORE_MODULE) {
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147 continue;
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148 }
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149
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150 module = ngx_modules[i]->ctx;
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151
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152 if (module->create_conf) {
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153 rv = module->create_conf(cycle);
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154 if (rv == NGX_CONF_ERROR) {
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155 ngx_destroy_pool(pool);
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156 return NULL;
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157 }
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158 cycle->conf_ctx[ngx_modules[i]->index] = rv;
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159 }
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160 }
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161
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162
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163 ngx_memzero(&conf, sizeof(ngx_conf_t));
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164 /* STUB: init array ? */
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50
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165 conf.args = ngx_array_create(pool, 10, sizeof(ngx_str_t));
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0
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166 if (conf.args == NULL) {
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167 ngx_destroy_pool(pool);
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168 return NULL;
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169 }
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170
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171 conf.ctx = cycle->conf_ctx;
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172 conf.cycle = cycle;
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173 conf.pool = pool;
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174 conf.log = log;
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175 conf.module_type = NGX_CORE_MODULE;
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176 conf.cmd_type = NGX_MAIN_CONF;
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177
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4
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178 #if 0
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179 log->log_level = NGX_LOG_DEBUG_ALL;
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180 #endif
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0
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181
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182 if (ngx_conf_parse(&conf, &cycle->conf_file) != NGX_CONF_OK) {
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183 ngx_destroy_pool(pool);
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184 return NULL;
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185 }
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186
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187 if (ngx_test_config) {
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188 ngx_log_error(NGX_LOG_INFO, log, 0,
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189 "the configuration file %s syntax is ok",
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190 cycle->conf_file.data);
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191 }
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192
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193
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194 for (i = 0; ngx_modules[i]; i++) {
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195 if (ngx_modules[i]->type != NGX_CORE_MODULE) {
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196 continue;
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197 }
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198
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199 module = ngx_modules[i]->ctx;
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200
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201 if (module->init_conf) {
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202 if (module->init_conf(cycle, cycle->conf_ctx[ngx_modules[i]->index])
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203 == NGX_CONF_ERROR)
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204 {
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205 ngx_destroy_pool(pool);
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206 return NULL;
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207 }
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208 }
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209 }
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210
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211
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212 failed = 0;
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213
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214
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10
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215 #if !(NGX_WIN32)
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0
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216 if (ngx_create_pidfile(cycle, old_cycle) == NGX_ERROR) {
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217 failed = 1;
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218 }
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219 #endif
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220
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221
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222 if (!failed) {
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16
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223 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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224 ngx_core_module);
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225
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226 if (ngx_create_pathes(cycle, ccf->user) == NGX_ERROR) {
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227 failed = 1;
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228 }
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229 }
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230
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231
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232 if (!failed) {
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0
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233
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10
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234 /* open the new files */
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235
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0
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236 part = &cycle->open_files.part;
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237 file = part->elts;
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238
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239 for (i = 0; /* void */ ; i++) {
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240
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241 if (i >= part->nelts) {
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242 if (part->next == NULL) {
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243 break;
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244 }
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245 part = part->next;
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246 file = part->elts;
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247 i = 0;
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248 }
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249
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250 if (file[i].name.data == NULL) {
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251 continue;
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252 }
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253
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254 file[i].fd = ngx_open_file(file[i].name.data,
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255 NGX_FILE_RDWR,
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256 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND);
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257
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258 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
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10
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259 "log: %p %d \"%s\"",
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0
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260 &file[i], file[i].fd, file[i].name.data);
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261
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262 if (file[i].fd == NGX_INVALID_FILE) {
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263 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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264 ngx_open_file_n " \"%s\" failed",
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265 file[i].name.data);
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266 failed = 1;
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267 break;
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268 }
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269
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10
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270 #if (NGX_WIN32)
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0
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271 if (ngx_file_append_mode(file[i].fd) == NGX_ERROR) {
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272 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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273 ngx_file_append_mode_n " \"%s\" failed",
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274 file[i].name.data);
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275 failed = 1;
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276 break;
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277 }
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278 #else
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279 if (fcntl(file[i].fd, F_SETFD, FD_CLOEXEC) == -1) {
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280 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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281 "fcntl(FD_CLOEXEC) \"%s\" failed",
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282 file[i].name.data);
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283 failed = 1;
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284 break;
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285 }
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286 #endif
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287 }
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288 }
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289
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290 cycle->log = cycle->new_log;
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291 pool->log = cycle->new_log;
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292
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293 if (cycle->log->log_level == 0) {
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294 cycle->log->log_level = NGX_LOG_ERR;
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295 }
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296
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297 if (!failed) {
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10
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298
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299 /* handle the listening sockets */
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300
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0
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301 if (old_cycle->listening.nelts) {
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302 ls = old_cycle->listening.elts;
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303 for (i = 0; i < old_cycle->listening.nelts; i++) {
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304 ls[i].remain = 0;
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305 }
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306
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307 nls = cycle->listening.elts;
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308 for (n = 0; n < cycle->listening.nelts; n++) {
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10
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309
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0
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310 for (i = 0; i < old_cycle->listening.nelts; i++) {
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311 if (ls[i].ignore) {
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312 continue;
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313 }
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314
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10
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315 if (ngx_cmp_sockaddr(nls[n].sockaddr, ls[i].sockaddr)
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72
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316 == NGX_OK)
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0
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317 {
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318 fd = ls[i].fd;
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10
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319 #if (NGX_WIN32)
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0
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320 /*
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321 * Winsock assignes a socket number divisible by 4 so
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322 * to find a connection we divide a socket number by 4.
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323 */
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324
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325 fd /= 4;
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326 #endif
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327 if (fd >= (ngx_socket_t) cycle->connection_n) {
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328 ngx_log_error(NGX_LOG_EMERG, log, 0,
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329 "%d connections is not enough to hold "
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10
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330 "an open listening socket on %V, "
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0
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331 "required at least %d connections",
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332 cycle->connection_n,
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10
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333 &ls[i].addr_text, fd);
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0
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334 failed = 1;
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335 break;
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336 }
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337
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338 nls[n].fd = ls[i].fd;
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92
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339 nls[n].previous = &ls[i];
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0
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340 ls[i].remain = 1;
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72
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341
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86
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342 if (ls[n].backlog != nls[i].backlog) {
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343 nls[n].change_backlog = 1;
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344 }
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345
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72
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346 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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347
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348 /*
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349 * FreeBSD, except the most recent versions,
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350 * can not remove accept filter
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351 */
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352 nls[n].deferred_accept = ls[i].deferred_accept;
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353
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354 if (ls[i].accept_filter && nls[n].accept_filter) {
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355 if (ngx_strcmp(ls[i].accept_filter,
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356 nls[n].accept_filter) != 0)
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357 {
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358 nls[n].delete_deferred = 1;
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359 nls[n].add_deferred = 1;
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360 }
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361
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362 } else if (ls[i].accept_filter) {
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363 nls[n].delete_deferred = 1;
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364
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365 } else if (nls[n].accept_filter) {
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366 nls[n].add_deferred = 1;
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367 }
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368 #endif
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369
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370 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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371
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372 if (ls[n].deferred_accept && !nls[n].deferred_accept) {
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373 nls[n].delete_deferred = 1;
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374
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375 } else if (ls[i].deferred_accept
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376 != nls[n].deferred_accept)
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377 {
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378 nls[n].add_deferred = 1;
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379 }
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380 #endif
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0
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381 break;
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382 }
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383 }
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384
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385 if (nls[n].fd == -1) {
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4
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386 nls[n].open = 1;
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0
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387 }
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388 }
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389
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390 } else {
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391 ls = cycle->listening.elts;
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392 for (i = 0; i < cycle->listening.nelts; i++) {
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4
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393 ls[i].open = 1;
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72
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394 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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395 if (ls[i].accept_filter) {
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396 ls[i].add_deferred = 1;
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397 }
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398 #endif
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399 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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400 if (ls[i].deferred_accept) {
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401 ls[i].add_deferred = 1;
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402 }
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403 #endif
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0
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404 }
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405 }
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406
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407 if (!ngx_test_config && !failed) {
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408 if (ngx_open_listening_sockets(cycle) == NGX_ERROR) {
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409 failed = 1;
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410 }
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72
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411
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412 if (!failed) {
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413 ls = cycle->listening.elts;
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|
|
414 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
415
|
|
86
|
416 if (ls[i].change_backlog) {
|
|
|
417 if (listen(ls[i].fd, ls[i].backlog) == -1) {
|
|
|
418 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
419 "changing the listen() backlog to %d "
|
|
|
420 "for %V failed, ignored",
|
|
|
421 &ls[i].addr_text, ls[i].backlog);
|
|
|
422 }
|
|
|
423 }
|
|
|
424
|
|
|
425 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
|
426
|
|
72
|
427 #ifdef SO_ACCEPTFILTER
|
|
|
428 if (ls[i].delete_deferred) {
|
|
|
429 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER,
|
|
|
430 NULL, 0) == -1)
|
|
|
431 {
|
|
|
432 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
433 "setsockopt(SO_ACCEPTFILTER, NULL) "
|
|
|
434 "for %V failed, ignored",
|
|
|
435 &ls[i].addr_text);
|
|
|
436
|
|
|
437 if (ls[i].accept_filter) {
|
|
|
438 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
439 "could not change the accept filter "
|
|
|
440 "to \"%s\" for %V, ignored",
|
|
|
441 ls[i].accept_filter, &ls[i].addr_text);
|
|
|
442 }
|
|
|
443
|
|
|
444 continue;
|
|
|
445 }
|
|
|
446
|
|
|
447 ls[i].deferred_accept = 0;
|
|
|
448 }
|
|
|
449
|
|
|
450 if (ls[i].add_deferred) {
|
|
|
451 ngx_memzero(&af, sizeof(struct accept_filter_arg));
|
|
|
452 (void) ngx_cpystrn((u_char *) af.af_name,
|
|
|
453 (u_char *) ls[i].accept_filter, 16);
|
|
|
454
|
|
|
455 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER,
|
|
|
456 &af, sizeof(struct accept_filter_arg)) == -1)
|
|
|
457 {
|
|
|
458 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
459 "setsockopt(SO_ACCEPTFILTER, \"%s\") "
|
|
|
460 "for %V failed, ignored",
|
|
|
461 ls[i].accept_filter, &ls[i].addr_text);
|
|
|
462 continue;
|
|
|
463 }
|
|
|
464
|
|
|
465 ls[i].deferred_accept = 1;
|
|
|
466 }
|
|
|
467 #endif
|
|
|
468
|
|
|
469 #ifdef TCP_DEFER_ACCEPT
|
|
|
470 if (ls[i].add_deferred || ls[i].delete_deferred) {
|
|
|
471 timeout = 0;
|
|
|
472
|
|
|
473 if (ls[i].add_deferred) {
|
|
|
474 timeout = (int) (ls[i].post_accept_timeout / 1000);
|
|
|
475 }
|
|
|
476
|
|
|
477 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT,
|
|
|
478 &timeout, sizeof(int)) == -1)
|
|
|
479 {
|
|
|
480 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
481 "setsockopt(TCP_DEFER_ACCEPT, %d) "
|
|
|
482 "for %V failed, ignored",
|
|
|
483 timeout, &ls[i].addr_text);
|
|
|
484 continue;
|
|
|
485 }
|
|
|
486 }
|
|
|
487
|
|
|
488 if (ls[i].add_deferred) {
|
|
|
489 ls[i].deferred_accept = 1;
|
|
|
490 }
|
|
|
491 #endif
|
|
86
|
492 #endif
|
|
72
|
493 }
|
|
|
494 }
|
|
0
|
495 }
|
|
|
496 }
|
|
|
497
|
|
|
498 if (failed) {
|
|
|
499
|
|
|
500 /* rollback the new cycle configuration */
|
|
|
501
|
|
|
502 part = &cycle->open_files.part;
|
|
|
503 file = part->elts;
|
|
|
504
|
|
|
505 for (i = 0; /* void */ ; i++) {
|
|
|
506
|
|
|
507 if (i >= part->nelts) {
|
|
|
508 if (part->next == NULL) {
|
|
|
509 break;
|
|
|
510 }
|
|
|
511 part = part->next;
|
|
|
512 file = part->elts;
|
|
|
513 i = 0;
|
|
|
514 }
|
|
|
515
|
|
|
516 if (file[i].fd == NGX_INVALID_FILE
|
|
|
517 || file[i].fd == ngx_stderr_fileno)
|
|
|
518 {
|
|
|
519 continue;
|
|
|
520 }
|
|
|
521
|
|
|
522 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
|
523 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
|
524 ngx_close_file_n " \"%s\" failed",
|
|
|
525 file[i].name.data);
|
|
|
526 }
|
|
|
527 }
|
|
|
528
|
|
|
529 if (ngx_test_config) {
|
|
|
530 ngx_destroy_pool(pool);
|
|
|
531 return NULL;
|
|
|
532 }
|
|
|
533
|
|
|
534 ls = cycle->listening.elts;
|
|
|
535 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
4
|
536 if (ls[i].fd == -1 || !ls[i].open) {
|
|
0
|
537 continue;
|
|
|
538 }
|
|
|
539
|
|
|
540 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
|
541 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
10
|
542 ngx_close_socket_n " %V failed",
|
|
|
543 &ls[i].addr_text);
|
|
0
|
544 }
|
|
|
545 }
|
|
|
546
|
|
|
547 ngx_destroy_pool(pool);
|
|
|
548 return NULL;
|
|
|
549 }
|
|
|
550
|
|
|
551
|
|
|
552 /* commit the new cycle configuration */
|
|
|
553
|
|
10
|
554 #if !(NGX_WIN32)
|
|
0
|
555
|
|
|
556 if (!ngx_test_config && cycle->log->file->fd != STDERR_FILENO) {
|
|
|
557
|
|
|
558 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
|
|
10
|
559 "dup2: %p %d \"%s\"",
|
|
0
|
560 cycle->log->file,
|
|
|
561 cycle->log->file->fd, cycle->log->file->name.data);
|
|
|
562
|
|
|
563 if (dup2(cycle->log->file->fd, STDERR_FILENO) == NGX_ERROR) {
|
|
|
564 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
|
565 "dup2(STDERR) failed");
|
|
|
566 /* fatal */
|
|
|
567 exit(1);
|
|
|
568 }
|
|
|
569 }
|
|
|
570
|
|
|
571 #endif
|
|
|
572
|
|
|
573 pool->log = cycle->log;
|
|
|
574
|
|
|
575 for (i = 0; ngx_modules[i]; i++) {
|
|
|
576 if (ngx_modules[i]->init_module) {
|
|
|
577 if (ngx_modules[i]->init_module(cycle) == NGX_ERROR) {
|
|
|
578 /* fatal */
|
|
|
579 exit(1);
|
|
|
580 }
|
|
|
581 }
|
|
|
582 }
|
|
|
583
|
|
16
|
584
|
|
0
|
585 /* close and delete stuff that lefts from an old cycle */
|
|
|
586
|
|
|
587 /* close the unneeded listening sockets */
|
|
|
588
|
|
|
589 ls = old_cycle->listening.elts;
|
|
|
590 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
|
591 if (ls[i].remain) {
|
|
|
592 continue;
|
|
|
593 }
|
|
|
594
|
|
|
595 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
|
596 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
92
|
597 ngx_close_socket_n " listening socket on %V failed",
|
|
10
|
598 &ls[i].addr_text);
|
|
0
|
599 }
|
|
|
600 }
|
|
|
601
|
|
|
602
|
|
|
603 /* close the unneeded open files */
|
|
|
604
|
|
|
605 part = &old_cycle->open_files.part;
|
|
|
606 file = part->elts;
|
|
|
607
|
|
|
608 for (i = 0; /* void */ ; i++) {
|
|
|
609
|
|
|
610 if (i >= part->nelts) {
|
|
|
611 if (part->next == NULL) {
|
|
|
612 break;
|
|
|
613 }
|
|
|
614 part = part->next;
|
|
|
615 file = part->elts;
|
|
|
616 i = 0;
|
|
|
617 }
|
|
|
618
|
|
|
619 if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr_fileno) {
|
|
|
620 continue;
|
|
|
621 }
|
|
|
622
|
|
|
623 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
|
624 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
|
625 ngx_close_file_n " \"%s\" failed",
|
|
|
626 file[i].name.data);
|
|
|
627 }
|
|
|
628 }
|
|
|
629
|
|
110
|
630 if (old_cycle->connections == NULL) {
|
|
0
|
631 /* an old cycle is an init cycle */
|
|
|
632 ngx_destroy_pool(old_cycle->pool);
|
|
|
633 return cycle;
|
|
|
634 }
|
|
|
635
|
|
|
636 if (ngx_process == NGX_PROCESS_MASTER) {
|
|
|
637 ngx_destroy_pool(old_cycle->pool);
|
|
|
638 return cycle;
|
|
|
639 }
|
|
|
640
|
|
|
641 if (ngx_temp_pool == NULL) {
|
|
|
642 ngx_temp_pool = ngx_create_pool(128, cycle->log);
|
|
|
643 if (ngx_temp_pool == NULL) {
|
|
|
644 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
645 "can not create ngx_temp_pool");
|
|
|
646 exit(1);
|
|
|
647 }
|
|
|
648
|
|
|
649 n = 10;
|
|
|
650 ngx_old_cycles.elts = ngx_pcalloc(ngx_temp_pool,
|
|
|
651 n * sizeof(ngx_cycle_t *));
|
|
|
652 if (ngx_old_cycles.elts == NULL) {
|
|
|
653 exit(1);
|
|
|
654 }
|
|
|
655 ngx_old_cycles.nelts = 0;
|
|
|
656 ngx_old_cycles.size = sizeof(ngx_cycle_t *);
|
|
|
657 ngx_old_cycles.nalloc = n;
|
|
|
658 ngx_old_cycles.pool = ngx_temp_pool;
|
|
|
659
|
|
58
|
660 ngx_cleaner_event.handler = ngx_clean_old_cycles;
|
|
0
|
661 ngx_cleaner_event.log = cycle->log;
|
|
|
662 ngx_cleaner_event.data = &dumb;
|
|
|
663 dumb.fd = (ngx_socket_t) -1;
|
|
|
664 }
|
|
|
665
|
|
|
666 ngx_temp_pool->log = cycle->log;
|
|
|
667
|
|
50
|
668 old = ngx_array_push(&ngx_old_cycles);
|
|
0
|
669 if (old == NULL) {
|
|
|
670 exit(1);
|
|
|
671 }
|
|
|
672 *old = old_cycle;
|
|
|
673
|
|
|
674 if (!ngx_cleaner_event.timer_set) {
|
|
|
675 ngx_add_timer(&ngx_cleaner_event, 30000);
|
|
|
676 ngx_cleaner_event.timer_set = 1;
|
|
|
677 }
|
|
|
678
|
|
|
679 return cycle;
|
|
|
680 }
|
|
|
681
|
|
|
682
|
|
28
|
683 static ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2)
|
|
10
|
684 {
|
|
|
685 struct sockaddr_in *sin1, *sin2;
|
|
|
686
|
|
|
687 /* AF_INET only */
|
|
|
688
|
|
28
|
689 if (sa1->sa_family != AF_INET || sa2->sa_family != AF_INET) {
|
|
10
|
690 return NGX_DECLINED;
|
|
|
691 }
|
|
|
692
|
|
28
|
693 sin1 = (struct sockaddr_in *) sa1;
|
|
|
694 sin2 = (struct sockaddr_in *) sa2;
|
|
10
|
695
|
|
|
696 if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) {
|
|
|
697 return NGX_DECLINED;
|
|
|
698 }
|
|
|
699
|
|
|
700 if (sin1->sin_port != sin2->sin_port) {
|
|
|
701 return NGX_DECLINED;
|
|
|
702 }
|
|
|
703
|
|
|
704 return NGX_OK;
|
|
|
705 }
|
|
|
706
|
|
|
707
|
|
|
708 #if !(NGX_WIN32)
|
|
0
|
709
|
|
|
710 ngx_int_t ngx_create_pidfile(ngx_cycle_t *cycle, ngx_cycle_t *old_cycle)
|
|
|
711 {
|
|
|
712 ngx_uint_t trunc;
|
|
|
713 size_t len;
|
|
50
|
714 u_char pid[NGX_INT64_LEN];
|
|
0
|
715 ngx_file_t file;
|
|
|
716 ngx_core_conf_t *ccf, *old_ccf;
|
|
|
717
|
|
|
718 if (!ngx_test_config && old_cycle && old_cycle->conf_ctx == NULL) {
|
|
|
719
|
|
|
720 /*
|
|
|
721 * do not create the pid file in the first ngx_init_cycle() call
|
|
|
722 * because we need to write the demonized process pid
|
|
|
723 */
|
|
|
724
|
|
|
725 return NGX_OK;
|
|
|
726 }
|
|
|
727
|
|
|
728 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
729
|
|
|
730 if (!ngx_test_config && old_cycle) {
|
|
|
731 old_ccf = (ngx_core_conf_t *) ngx_get_conf(old_cycle->conf_ctx,
|
|
|
732 ngx_core_module);
|
|
|
733
|
|
|
734 if (ccf->pid.len == old_ccf->pid.len
|
|
|
735 && ngx_strcmp(ccf->pid.data, old_ccf->pid.data) == 0)
|
|
|
736 {
|
|
|
737
|
|
|
738 /* pid file name is the same */
|
|
|
739
|
|
|
740 return NGX_OK;
|
|
|
741 }
|
|
|
742 }
|
|
|
743
|
|
|
744 ngx_memzero(&file, sizeof(ngx_file_t));
|
|
92
|
745
|
|
|
746 file.name = ccf->pid;
|
|
0
|
747 file.log = cycle->log;
|
|
|
748
|
|
|
749 trunc = ngx_test_config ? 0: NGX_FILE_TRUNCATE;
|
|
|
750
|
|
|
751 file.fd = ngx_open_file(file.name.data, NGX_FILE_RDWR,
|
|
|
752 NGX_FILE_CREATE_OR_OPEN|trunc);
|
|
|
753
|
|
|
754 if (file.fd == NGX_INVALID_FILE) {
|
|
|
755 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
756 ngx_open_file_n " \"%s\" failed", file.name.data);
|
|
|
757 return NGX_ERROR;
|
|
|
758 }
|
|
|
759
|
|
|
760 if (!ngx_test_config) {
|
|
74
|
761 len = ngx_sprintf(pid, "%P%N", ngx_pid) - pid;
|
|
10
|
762
|
|
0
|
763 if (ngx_write_file(&file, pid, len, 0) == NGX_ERROR) {
|
|
|
764 return NGX_ERROR;
|
|
|
765 }
|
|
|
766 }
|
|
|
767
|
|
|
768 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
|
|
|
769 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
770 ngx_close_file_n " \"%s\" failed", file.name.data);
|
|
|
771 }
|
|
|
772
|
|
|
773 ngx_delete_pidfile(old_cycle);
|
|
|
774
|
|
|
775 return NGX_OK;
|
|
|
776 }
|
|
|
777
|
|
|
778
|
|
|
779 void ngx_delete_pidfile(ngx_cycle_t *cycle)
|
|
|
780 {
|
|
|
781 u_char *name;
|
|
|
782 ngx_core_conf_t *ccf;
|
|
|
783
|
|
|
784 if (cycle == NULL || cycle->conf_ctx == NULL) {
|
|
|
785 return;
|
|
|
786 }
|
|
|
787
|
|
|
788 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
789
|
|
92
|
790 name = ngx_new_binary ? ccf->oldpid.data : ccf->pid.data;
|
|
0
|
791
|
|
|
792 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
|
793 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
794 ngx_delete_file_n " \"%s\" failed", name);
|
|
|
795 }
|
|
|
796 }
|
|
|
797
|
|
|
798 #endif
|
|
|
799
|
|
|
800
|
|
|
801 void ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user)
|
|
|
802 {
|
|
|
803 ngx_fd_t fd;
|
|
|
804 ngx_uint_t i;
|
|
|
805 ngx_list_part_t *part;
|
|
|
806 ngx_open_file_t *file;
|
|
10
|
807 #if !(NGX_WIN32)
|
|
2
|
808 ngx_file_info_t fi;
|
|
|
809 #endif
|
|
0
|
810
|
|
|
811 part = &cycle->open_files.part;
|
|
|
812 file = part->elts;
|
|
|
813
|
|
|
814 for (i = 0; /* void */ ; i++) {
|
|
|
815
|
|
|
816 if (i >= part->nelts) {
|
|
|
817 if (part->next == NULL) {
|
|
|
818 break;
|
|
|
819 }
|
|
|
820 part = part->next;
|
|
72
|
821 file = part->elts;
|
|
0
|
822 i = 0;
|
|
|
823 }
|
|
|
824
|
|
|
825 if (file[i].name.data == NULL) {
|
|
|
826 continue;
|
|
|
827 }
|
|
|
828
|
|
|
829 fd = ngx_open_file(file[i].name.data, NGX_FILE_RDWR,
|
|
|
830 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND);
|
|
|
831
|
|
|
832 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
833 "reopen file \"%s\", old:%d new:%d",
|
|
|
834 file[i].name.data, file[i].fd, fd);
|
|
|
835
|
|
|
836 if (fd == NGX_INVALID_FILE) {
|
|
|
837 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
838 ngx_open_file_n " \"%s\" failed", file[i].name.data);
|
|
|
839 continue;
|
|
|
840 }
|
|
|
841
|
|
10
|
842 #if (NGX_WIN32)
|
|
0
|
843 if (ngx_file_append_mode(fd) == NGX_ERROR) {
|
|
|
844 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
845 ngx_file_append_mode_n " \"%s\" failed",
|
|
|
846 file[i].name.data);
|
|
|
847
|
|
|
848 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
849 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
850 ngx_close_file_n " \"%s\" failed",
|
|
|
851 file[i].name.data);
|
|
|
852 }
|
|
|
853
|
|
|
854 continue;
|
|
|
855 }
|
|
|
856 #else
|
|
66
|
857 if (user != (ngx_uid_t) NGX_CONF_UNSET_UINT) {
|
|
2
|
858
|
|
|
859 if (ngx_file_info((const char *) file[i].name.data, &fi) == -1) {
|
|
|
860 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
861 ngx_file_info_n " \"%s\" failed",
|
|
|
862 file[i].name.data);
|
|
|
863
|
|
|
864 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
865 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
866 ngx_close_file_n " \"%s\" failed",
|
|
|
867 file[i].name.data);
|
|
|
868 }
|
|
|
869 }
|
|
|
870
|
|
16
|
871 if (fi.st_uid != user) {
|
|
|
872 if (chown((const char *) file[i].name.data, user, -1) == -1) {
|
|
|
873 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
874 "chown(\"%s\", %d) failed",
|
|
|
875 file[i].name.data, user);
|
|
|
876
|
|
|
877 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
878 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
879 ngx_close_file_n " \"%s\" failed",
|
|
|
880 file[i].name.data);
|
|
|
881 }
|
|
|
882 }
|
|
|
883 }
|
|
|
884
|
|
2
|
885 if ((fi.st_mode & (S_IRUSR|S_IWUSR)) != (S_IRUSR|S_IWUSR)) {
|
|
|
886
|
|
|
887 fi.st_mode |= (S_IRUSR|S_IWUSR);
|
|
|
888
|
|
|
889 if (chmod((const char *) file[i].name.data, fi.st_mode) == -1) {
|
|
|
890 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
16
|
891 "chmod() \"%s\" failed", file[i].name.data);
|
|
2
|
892
|
|
|
893 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
894 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
895 ngx_close_file_n " \"%s\" failed",
|
|
|
896 file[i].name.data);
|
|
|
897 }
|
|
|
898 }
|
|
|
899 }
|
|
0
|
900 }
|
|
|
901
|
|
|
902 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
|
|
903 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
904 "fcntl(FD_CLOEXEC) \"%s\" failed",
|
|
|
905 file[i].name.data);
|
|
|
906
|
|
|
907 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
908 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
909 ngx_close_file_n " \"%s\" failed",
|
|
|
910 file[i].name.data);
|
|
|
911 }
|
|
|
912
|
|
|
913 continue;
|
|
|
914 }
|
|
|
915 #endif
|
|
|
916
|
|
|
917 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
|
918 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
919 ngx_close_file_n " \"%s\" failed",
|
|
|
920 file[i].name.data);
|
|
|
921 }
|
|
|
922
|
|
|
923 file[i].fd = fd;
|
|
|
924 }
|
|
|
925
|
|
10
|
926 #if !(NGX_WIN32)
|
|
0
|
927
|
|
|
928 if (cycle->log->file->fd != STDERR_FILENO) {
|
|
|
929 if (dup2(cycle->log->file->fd, STDERR_FILENO) == -1) {
|
|
|
930 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
931 "dup2(STDERR) failed");
|
|
|
932 }
|
|
|
933 }
|
|
|
934
|
|
|
935 #endif
|
|
|
936 }
|
|
|
937
|
|
|
938
|
|
|
939 static void ngx_clean_old_cycles(ngx_event_t *ev)
|
|
|
940 {
|
|
|
941 ngx_uint_t i, n, found, live;
|
|
|
942 ngx_log_t *log;
|
|
|
943 ngx_cycle_t **cycle;
|
|
|
944
|
|
|
945 log = ngx_cycle->log;
|
|
|
946 ngx_temp_pool->log = log;
|
|
|
947
|
|
|
948 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycles");
|
|
|
949
|
|
|
950 live = 0;
|
|
|
951
|
|
|
952 cycle = ngx_old_cycles.elts;
|
|
|
953 for (i = 0; i < ngx_old_cycles.nelts; i++) {
|
|
|
954
|
|
|
955 if (cycle[i] == NULL) {
|
|
|
956 continue;
|
|
|
957 }
|
|
|
958
|
|
|
959 found = 0;
|
|
|
960
|
|
|
961 for (n = 0; n < cycle[i]->connection_n; n++) {
|
|
110
|
962 if (cycle[i]->connections[n].fd != (ngx_socket_t) -1) {
|
|
0
|
963 found = 1;
|
|
|
964
|
|
|
965 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "live fd:%d", n);
|
|
|
966
|
|
|
967 break;
|
|
|
968 }
|
|
|
969 }
|
|
|
970
|
|
|
971 if (found) {
|
|
|
972 live = 1;
|
|
|
973 continue;
|
|
|
974 }
|
|
|
975
|
|
|
976 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycle: %d", i);
|
|
|
977
|
|
|
978 ngx_destroy_pool(cycle[i]->pool);
|
|
|
979 cycle[i] = NULL;
|
|
|
980 }
|
|
|
981
|
|
|
982 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "old cycles status: %d", live);
|
|
|
983
|
|
|
984 if (live) {
|
|
|
985 ngx_add_timer(ev, 30000);
|
|
|
986
|
|
|
987 } else {
|
|
|
988 ngx_destroy_pool(ngx_temp_pool);
|
|
|
989 ngx_temp_pool = NULL;
|
|
|
990 ngx_old_cycles.nelts = 0;
|
|
|
991 }
|
|
|
992 }
|
