Mercurial > hg > nginx
annotate src/http/modules/ngx_http_geo_module.c @ 2369:12e8e0045096 radix_with_skip
add radix tree skip node
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 03 Dec 2008 13:26:02 +0000 |
parents | 8522a901df2f |
children |
rev | line source |
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485 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 | |
11 | |
12 typedef struct { | |
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13 u_short start; |
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14 u_short end; |
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15 ngx_http_variable_value_t *value; |
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16 } ngx_http_geo_range_t; |
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17 |
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18 |
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19 typedef struct { |
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20 ngx_http_geo_range_t *ranges; |
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21 ngx_uint_t n; |
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22 } ngx_http_geo_low_ranges_t; |
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23 |
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24 |
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25 typedef struct { |
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26 ngx_http_geo_low_ranges_t low[0x10000]; |
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27 ngx_http_variable_value_t *default_value; |
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28 } ngx_http_geo_high_ranges_t; |
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29 |
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30 |
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31 typedef struct { |
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32 ngx_http_variable_value_t *value; |
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33 ngx_str_t *net; |
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34 ngx_http_geo_high_ranges_t *high; |
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35 ngx_radix_tree_t *tree; |
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36 ngx_rbtree_t rbtree; |
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37 ngx_rbtree_node_t sentinel; |
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38 ngx_pool_t *pool; |
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39 ngx_pool_t *temp_pool; |
589 | 40 } ngx_http_geo_conf_ctx_t; |
485 | 41 |
42 | |
43 static char *ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
44 static char *ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf); | |
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45 static char *ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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46 ngx_str_t *value); |
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47 static char *ngx_http_geo_add_range(ngx_conf_t *cf, |
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48 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end); |
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49 static ngx_uint_t ngx_http_geo_delete_range(ngx_conf_t *cf, |
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50 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end); |
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51 static char *ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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52 ngx_str_t *value); |
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53 static ngx_http_variable_value_t *ngx_http_geo_value(ngx_conf_t *cf, |
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54 ngx_http_geo_conf_ctx_t *ctx, ngx_str_t *value); |
485 | 55 |
56 | |
57 static ngx_command_t ngx_http_geo_commands[] = { | |
58 | |
59 { ngx_string("geo"), | |
60 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
61 ngx_http_geo_block, | |
62 NGX_HTTP_MAIN_CONF_OFFSET, | |
63 0, | |
64 NULL }, | |
65 | |
66 ngx_null_command | |
67 }; | |
68 | |
69 | |
70 static ngx_http_module_t ngx_http_geo_module_ctx = { | |
509 | 71 NULL, /* preconfiguration */ |
72 NULL, /* postconfiguration */ | |
485 | 73 |
74 NULL, /* create main configuration */ | |
75 NULL, /* init main configuration */ | |
76 | |
77 NULL, /* create server configuration */ | |
78 NULL, /* merge server configuration */ | |
79 | |
80 NULL, /* create location configuration */ | |
81 NULL /* merge location configuration */ | |
82 }; | |
83 | |
84 | |
85 ngx_module_t ngx_http_geo_module = { | |
509 | 86 NGX_MODULE_V1, |
485 | 87 &ngx_http_geo_module_ctx, /* module context */ |
88 ngx_http_geo_commands, /* module directives */ | |
89 NGX_HTTP_MODULE, /* module type */ | |
541 | 90 NULL, /* init master */ |
485 | 91 NULL, /* init module */ |
541 | 92 NULL, /* init process */ |
93 NULL, /* init thread */ | |
94 NULL, /* exit thread */ | |
95 NULL, /* exit process */ | |
96 NULL, /* exit master */ | |
97 NGX_MODULE_V1_PADDING | |
485 | 98 }; |
99 | |
100 | |
101 /* AF_INET only */ | |
102 | |
573 | 103 static ngx_int_t |
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104 ngx_http_geo_cidr_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
573 | 105 uintptr_t data) |
485 | 106 { |
501 | 107 ngx_radix_tree_t *tree = (ngx_radix_tree_t *) data; |
485 | 108 |
489 | 109 struct sockaddr_in *sin; |
573 | 110 ngx_http_variable_value_t *vv; |
485 | 111 |
489 | 112 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
113 "http geo started"); | |
114 | |
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115 sin = (struct sockaddr_in *) r->connection->sockaddr; |
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116 |
573 | 117 vv = (ngx_http_variable_value_t *) |
485 | 118 ngx_radix32tree_find(tree, ntohl(sin->sin_addr.s_addr)); |
489 | 119 |
573 | 120 *v = *vv; |
121 | |
489 | 122 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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123 "http geo: %V %v", &r->connection->addr_text, v); |
489 | 124 |
573 | 125 return NGX_OK; |
485 | 126 } |
127 | |
128 | |
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129 static ngx_int_t |
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130 ngx_http_geo_range_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
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131 uintptr_t data) |
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132 { |
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133 ngx_http_geo_high_ranges_t *high = (ngx_http_geo_high_ranges_t *) data; |
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134 |
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135 in_addr_t addr; |
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136 ngx_uint_t i, n; |
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137 struct sockaddr_in *sin; |
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138 ngx_http_geo_range_t *range; |
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139 |
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140 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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141 "http geo started"); |
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142 |
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143 sin = (struct sockaddr_in *) r->connection->sockaddr; |
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144 |
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145 *v = *high->default_value; |
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146 |
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147 addr = ntohl(sin->sin_addr.s_addr); |
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148 |
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149 range = high->low[addr >> 16].ranges; |
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150 |
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151 n = addr & 0xffff; |
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152 |
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153 for (i = 0; i < high->low[addr >> 16].n; i++) { |
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154 if (n >= (ngx_uint_t) range[i].start |
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155 && n <= (ngx_uint_t) range[i].end) |
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156 { |
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157 *v = *range[i].value; |
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158 } |
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159 } |
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160 |
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161 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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162 "http geo: %V %v", &r->connection->addr_text, v); |
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163 |
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164 return NGX_OK; |
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165 } |
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166 |
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167 |
489 | 168 static char * |
169 ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 170 { |
589 | 171 char *rv; |
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172 size_t len; |
589 | 173 ngx_str_t *value, name; |
2369 | 174 ngx_uint_t i, count; |
589 | 175 ngx_conf_t save; |
176 ngx_pool_t *pool; | |
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177 ngx_array_t *a; |
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178 ngx_http_variable_t *var; |
589 | 179 ngx_http_geo_conf_ctx_t ctx; |
485 | 180 |
501 | 181 value = cf->args->elts; |
182 | |
183 name = value[1]; | |
184 | |
185 if (name.data[0] != '$') { | |
186 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
187 "\"%V\" variable name should start with '$'", | |
188 &value[1]); | |
189 } else { | |
190 name.len--; | |
191 name.data++; | |
192 } | |
193 | |
1565 | 194 var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE); |
501 | 195 if (var == NULL) { |
485 | 196 return NGX_CONF_ERROR; |
197 } | |
198 | |
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199 pool = ngx_create_pool(16384, cf->log); |
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200 if (pool == NULL) { |
485 | 201 return NGX_CONF_ERROR; |
202 } | |
203 | |
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204 ctx.temp_pool = ngx_create_pool(16384, cf->log); |
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205 if (ctx.temp_pool == NULL) { |
485 | 206 return NGX_CONF_ERROR; |
207 } | |
208 | |
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209 ngx_rbtree_init(&ctx.rbtree, &ctx.sentinel, |
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210 ngx_http_variable_value_rbtree_insert); |
485 | 211 |
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212 ctx.high = NULL; |
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213 ctx.tree = NULL; |
589 | 214 ctx.pool = cf->pool; |
485 | 215 |
216 save = *cf; | |
217 cf->pool = pool; | |
589 | 218 cf->ctx = &ctx; |
485 | 219 cf->handler = ngx_http_geo; |
220 cf->handler_conf = conf; | |
221 | |
222 rv = ngx_conf_parse(cf, NULL); | |
223 | |
224 *cf = save; | |
225 | |
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226 if (ctx.high) { |
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227 |
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228 for (i = 0; i < 0x10000; i++) { |
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229 a = (ngx_array_t *) ctx.high->low[i].ranges; |
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230 |
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231 if (a == NULL || a->nelts == 0) { |
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232 continue; |
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233 } |
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234 |
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235 ctx.high->low[i].n = a->nelts; |
485 | 236 |
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237 len = a->nelts * sizeof(ngx_http_geo_range_t); |
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238 |
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239 ctx.high->low[i].ranges = ngx_palloc(cf->pool, len); |
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240 if (ctx.high->low[i].ranges == NULL ){ |
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241 return NGX_CONF_ERROR; |
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242 } |
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243 |
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244 ngx_memcpy(ctx.high->low[i].ranges, a->elts, len); |
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245 } |
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246 |
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247 var->get_handler = ngx_http_geo_range_variable; |
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248 var->data = (uintptr_t) ctx.high; |
485 | 249 |
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250 ngx_destroy_pool(ctx.temp_pool); |
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251 ngx_destroy_pool(pool); |
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252 |
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253 if (ctx.high->default_value == NULL) { |
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254 ctx.high->default_value = &ngx_http_variable_null_value; |
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255 } |
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256 |
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257 } else { |
2358
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258 if (ctx.tree == NULL) { |
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259 ctx.tree = ngx_radix_tree_create(cf->pool, -1); |
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260 if (ctx.tree == NULL) { |
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261 return NGX_CONF_ERROR; |
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262 } |
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263 } |
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264 |
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265 var->get_handler = ngx_http_geo_cidr_variable; |
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266 var->data = (uintptr_t) ctx.tree; |
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267 |
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268 ngx_destroy_pool(ctx.temp_pool); |
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269 ngx_destroy_pool(pool); |
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270 |
2369 | 271 if (ngx_radix32tree_find(ctx.tree, 0) == NGX_RADIX_NO_VALUE) { |
272 | |
273 if (ngx_radix32tree_insert(ctx.tree, 0, 0, | |
274 (uintptr_t) &ngx_http_variable_null_value) | |
275 == NGX_ERROR) | |
276 { | |
277 return NGX_CONF_ERROR; | |
278 } | |
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279 } |
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280 |
2369 | 281 count = ctx.tree->count; |
282 | |
283 ngx_radix32tree_compress(ctx.tree); | |
284 | |
285 ngx_log_error(NGX_LOG_NOTICE, cf->log, 0, | |
286 "\"%V\" geo tree has been compressed as %ui/%ui", | |
287 &name, ctx.tree->count, count); | |
485 | 288 } |
289 | |
290 return rv; | |
291 } | |
292 | |
293 | |
489 | 294 static char * |
295 ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) | |
485 | 296 { |
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297 char *rv; |
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298 ngx_str_t *value, file; |
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299 ngx_http_geo_conf_ctx_t *ctx; |
485 | 300 |
589 | 301 ctx = cf->ctx; |
485 | 302 |
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303 value = cf->args->elts; |
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304 |
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305 if (cf->args->nelts == 1) { |
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306 |
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307 if (ngx_strcmp(value[0].data, "ranges") == 0) { |
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308 |
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309 if (ctx->tree) { |
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310 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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311 "the \"ranges\" directive must be " |
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312 "the first directive inside \"geo\" block"); |
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313 goto failed; |
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314 } |
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315 |
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316 ctx->high = ngx_pcalloc(ctx->pool, |
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317 sizeof(ngx_http_geo_high_ranges_t)); |
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318 if (ctx->high == NULL) { |
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319 goto failed; |
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320 } |
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321 |
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322 rv = NGX_CONF_OK; |
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323 |
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324 goto done; |
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325 } |
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326 } |
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327 |
485 | 328 if (cf->args->nelts != 2) { |
329 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
330 "invalid number of the geo parameters"); | |
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331 goto failed; |
485 | 332 } |
333 | |
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334 if (ngx_strcmp(value[0].data, "include") == 0) { |
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335 |
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336 file.len = value[1].len++; |
485 | 337 |
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338 file.data = ngx_pstrdup(ctx->temp_pool, &value[1]); |
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339 if (file.data == NULL) { |
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340 goto failed; |
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341 } |
485 | 342 |
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343 if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK){ |
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344 goto failed; |
485 | 345 } |
346 | |
347 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data); | |
348 | |
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349 rv = ngx_conf_parse(cf, &file); |
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350 |
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351 goto done; |
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352 } |
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353 |
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354 if (ctx->high) { |
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355 rv = ngx_http_geo_range(cf, ctx, value); |
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356 |
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357 } else { |
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358 rv = ngx_http_geo_cidr(cf, ctx, value); |
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359 } |
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360 |
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361 done: |
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362 |
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363 ngx_reset_pool(cf->pool); |
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364 |
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365 return rv; |
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366 |
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367 failed: |
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368 |
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369 ngx_reset_pool(cf->pool); |
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370 |
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371 return NGX_CONF_ERROR; |
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372 } |
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373 |
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374 |
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375 static char * |
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376 ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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377 ngx_str_t *value) |
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378 { |
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379 u_char *p, *last; |
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380 in_addr_t start, end; |
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381 ngx_str_t *net; |
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382 ngx_uint_t del; |
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|
383 ngx_http_variable_value_t *old; |
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|
384 |
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385 if (ngx_strcmp(value[0].data, "default") == 0) { |
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|
386 |
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|
387 old = ctx->high->default_value; |
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|
388 |
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|
389 ctx->high->default_value = ngx_http_geo_value(cf, ctx, &value[1]); |
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390 if (ctx->high->default_value == NULL) { |
22d2b6609853
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|
391 return NGX_CONF_ERROR; |
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|
392 } |
22d2b6609853
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changeset
|
393 |
22d2b6609853
*) descrease geo configuration memory usage
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|
394 if (old) { |
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|
395 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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396 "duplicate range \"%V\", value: \"%v\", old value: \"%v\"", |
22d2b6609853
*) descrease geo configuration memory usage
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|
397 &value[0], ctx->high->default_value, old); |
22d2b6609853
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|
398 } |
22d2b6609853
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diff
changeset
|
399 |
22d2b6609853
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|
400 return NGX_CONF_OK; |
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changeset
|
401 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
402 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
403 if (ngx_strcmp(value[0].data, "delete") == 0) { |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
404 net = &value[1]; |
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*) descrease geo configuration memory usage
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changeset
|
405 del = 1; |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
406 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
407 } else { |
22d2b6609853
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changeset
|
408 net = &value[0]; |
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|
409 del = 0; |
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changeset
|
410 } |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
411 |
22d2b6609853
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|
412 last = net->data + net->len; |
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|
413 |
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|
414 p = ngx_strlchr(net->data, last, '-'); |
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*) descrease geo configuration memory usage
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changeset
|
415 |
22d2b6609853
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|
416 if (p == NULL) { |
22d2b6609853
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|
417 goto invalid; |
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*) descrease geo configuration memory usage
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diff
changeset
|
418 } |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
419 |
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*) descrease geo configuration memory usage
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|
420 start = ngx_inet_addr(net->data, p - net->data); |
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changeset
|
421 |
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*) descrease geo configuration memory usage
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|
422 if (start == INADDR_NONE) { |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
423 goto invalid; |
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*) descrease geo configuration memory usage
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diff
changeset
|
424 } |
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*) descrease geo configuration memory usage
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diff
changeset
|
425 |
22d2b6609853
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|
426 start = ntohl(start); |
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diff
changeset
|
427 |
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changeset
|
428 p++; |
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diff
changeset
|
429 |
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|
430 end = ngx_inet_addr(p, last - p); |
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diff
changeset
|
431 |
22d2b6609853
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changeset
|
432 if (end == INADDR_NONE) { |
22d2b6609853
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diff
changeset
|
433 goto invalid; |
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diff
changeset
|
434 } |
22d2b6609853
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parents:
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diff
changeset
|
435 |
22d2b6609853
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changeset
|
436 end = ntohl(end); |
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diff
changeset
|
437 |
22d2b6609853
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changeset
|
438 if (start > end) { |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
439 goto invalid; |
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*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
440 } |
22d2b6609853
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diff
changeset
|
441 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
442 if (del) { |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
443 if (ngx_http_geo_delete_range(cf, ctx, start, end)) { |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
444 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
445 "no address range \"%V\" to delete", net); |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
446 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
447 |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
448 return NGX_CONF_OK; |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
2334
diff
changeset
|
449 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
450 |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
451 ctx->value = ngx_http_geo_value(cf, ctx, &value[1]); |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
452 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
453 if (ctx->value == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
454 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
455 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
456 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
457 ctx->net = net; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
458 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
459 return ngx_http_geo_add_range(cf, ctx, start, end); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
460 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
461 invalid: |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
462 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
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2334
diff
changeset
|
463 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid range \"%V\"", net); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
464 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
465 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
466 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
467 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
468 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
469 /* the add procedure is optimized to add a growing up sequence */ |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
470 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
471 static char * |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
472 ngx_http_geo_add_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
473 in_addr_t start, in_addr_t end) |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
474 { |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
2334
diff
changeset
|
475 in_addr_t n; |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
476 ngx_uint_t h, i, s, e; |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
477 ngx_array_t *a; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
478 ngx_http_geo_range_t *range; |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
2334
diff
changeset
|
479 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
2334
diff
changeset
|
480 for (n = start; n < end; n += 0x10000) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
481 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
482 h = n >> 16; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
483 s = n & 0xffff; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
484 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
485 if ((n | 0xffff) > end) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
486 e = end & 0xffff; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
487 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
488 } else { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
489 e = 0xffff; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
490 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
491 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
492 a = (ngx_array_t *) ctx->high->low[h].ranges; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
493 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
494 if (a == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
2334
diff
changeset
|
495 a = ngx_array_create(ctx->temp_pool, 64, |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
2334
diff
changeset
|
496 sizeof(ngx_http_geo_range_t)); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
497 if (a == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
498 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
499 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
500 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
501 ctx->high->low[h].ranges = (ngx_http_geo_range_t *) a; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
502 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
503 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
504 i = a->nelts; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
505 range = a->elts; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
506 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
507 while (i) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
508 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
509 i--; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
510 |
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511 if (e < (ngx_uint_t) range[i].start) { |
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512 continue; |
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513 } |
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|
514 |
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515 if (s > (ngx_uint_t) range[i].end) { |
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516 |
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517 /* add after the range */ |
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|
518 |
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519 range = ngx_array_push(a); |
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520 if (range == NULL) { |
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521 return NGX_CONF_ERROR; |
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|
522 } |
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|
523 |
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524 range = a->elts; |
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525 |
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526 ngx_memcpy(&range[i + 2], &range[i + 1], |
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527 (a->nelts - 2 - i) * sizeof(ngx_http_geo_range_t)); |
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528 |
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529 range = &range[i + 1]; |
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|
530 |
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|
531 goto next; |
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|
532 } |
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|
533 |
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534 if (s == (ngx_uint_t) range[i].start |
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535 && e == (ngx_uint_t) range[i].end) |
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536 { |
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537 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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538 "duplicate range \"%V\", value: \"%v\", old value: \"%v\"", |
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539 ctx->net, ctx->value, range[i].value); |
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540 continue; |
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|
541 } |
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|
542 |
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|
543 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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544 "overlapped range \"%V\"", ctx->net); |
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545 |
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546 return NGX_CONF_ERROR; |
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|
547 } |
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|
548 |
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549 /* add the first range */ |
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550 |
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|
551 range = ngx_array_push(a); |
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552 if (range == NULL) { |
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553 return NGX_CONF_ERROR; |
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|
554 } |
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diff
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|
555 |
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|
556 next: |
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|
557 |
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|
558 range->start = (u_short) s; |
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559 range->end = (u_short) e; |
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|
560 range->value = ctx->value; |
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|
561 } |
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diff
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|
562 |
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|
563 return NGX_CONF_OK; |
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|
564 } |
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diff
changeset
|
565 |
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diff
changeset
|
566 |
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|
567 static ngx_uint_t |
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568 ngx_http_geo_delete_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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|
569 in_addr_t start, in_addr_t end) |
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|
570 { |
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|
571 in_addr_t n; |
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572 ngx_uint_t h, i, s, e, warn; |
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573 ngx_array_t *a; |
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574 ngx_http_geo_range_t *range; |
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|
575 |
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|
576 warn = 0; |
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diff
changeset
|
577 |
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|
578 for (n = start; n < end; n += 0x10000) { |
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diff
changeset
|
579 |
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diff
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|
580 h = n >> 16; |
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diff
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|
581 s = n & 0xffff; |
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diff
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|
582 |
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diff
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|
583 if ((n | 0xffff) > end) { |
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|
584 e = end & 0xffff; |
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|
585 |
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diff
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|
586 } else { |
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|
587 e = 0xffff; |
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|
588 } |
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changeset
|
589 |
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|
590 a = (ngx_array_t *) ctx->high->low[h].ranges; |
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changeset
|
591 |
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diff
changeset
|
592 if (a == NULL) { |
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diff
changeset
|
593 warn = 1; |
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diff
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|
594 continue; |
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parents:
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diff
changeset
|
595 } |
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diff
changeset
|
596 |
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changeset
|
597 range = a->elts; |
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|
598 for (i = 0; i < a->nelts; i++) { |
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diff
changeset
|
599 |
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diff
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|
600 if (s == (ngx_uint_t) range[i].start |
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|
601 && e == (ngx_uint_t) range[i].end) |
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diff
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|
602 { |
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diff
changeset
|
603 ngx_memcpy(&range[i], &range[i + 1], |
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diff
changeset
|
604 (a->nelts - 1 - i) * sizeof(ngx_http_geo_range_t)); |
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|
605 break; |
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parents:
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diff
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|
606 } |
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diff
changeset
|
607 |
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diff
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|
608 if (s != (ngx_uint_t) range[i].start |
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|
609 && e != (ngx_uint_t) range[i].end) |
22d2b6609853
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diff
changeset
|
610 { |
22d2b6609853
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diff
changeset
|
611 continue; |
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diff
changeset
|
612 } |
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diff
changeset
|
613 |
22d2b6609853
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diff
changeset
|
614 warn = 1; |
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diff
changeset
|
615 } |
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diff
changeset
|
616 } |
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diff
changeset
|
617 |
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diff
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|
618 return warn; |
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parents:
2334
diff
changeset
|
619 } |
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changeset
|
620 |
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diff
changeset
|
621 |
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diff
changeset
|
622 static char * |
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diff
changeset
|
623 ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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|
624 ngx_str_t *value) |
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|
625 { |
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|
626 ngx_int_t rc, del; |
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|
627 ngx_str_t *net; |
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|
628 ngx_uint_t i; |
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diff
changeset
|
629 ngx_inet_cidr_t cidrin; |
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|
630 ngx_http_variable_value_t *val, *old; |
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|
631 |
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|
632 if (ctx->tree == NULL) { |
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|
633 ctx->tree = ngx_radix_tree_create(ctx->pool, -1); |
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changeset
|
634 if (ctx->tree == NULL) { |
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diff
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|
635 return NGX_CONF_ERROR; |
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|
636 } |
485 | 637 } |
638 | |
639 if (ngx_strcmp(value[0].data, "default") == 0) { | |
640 cidrin.addr = 0; | |
641 cidrin.mask = 0; | |
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642 net = &value[0]; |
485 | 643 |
644 } else { | |
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645 if (ngx_strcmp(value[0].data, "delete") == 0) { |
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646 net = &value[1]; |
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647 del = 1; |
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648 |
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649 } else { |
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650 net = &value[0]; |
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651 del = 0; |
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652 } |
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653 |
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654 rc = ngx_ptocidr(net, &cidrin); |
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655 |
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656 if (rc == NGX_ERROR) { |
485 | 657 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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658 "invalid network \"%V\"", net); |
485 | 659 return NGX_CONF_ERROR; |
660 } | |
661 | |
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662 if (rc == NGX_DONE) { |
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663 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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664 "low address bits of %V are meaningless", net); |
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665 } |
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666 |
485 | 667 cidrin.addr = ntohl(cidrin.addr); |
668 cidrin.mask = ntohl(cidrin.mask); | |
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669 |
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670 if (del) { |
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671 if (ngx_radix32tree_delete(ctx->tree, cidrin.addr, cidrin.mask) |
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672 != NGX_OK) |
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673 { |
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674 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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675 "no network \"%V\" to delete", net); |
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676 } |
2365 | 677 |
678 return NGX_CONF_OK; | |
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679 } |
485 | 680 } |
681 | |
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682 val = ngx_http_geo_value(cf, ctx, &value[1]); |
485 | 683 |
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684 if (val == NULL) { |
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685 return NGX_CONF_ERROR; |
485 | 686 } |
687 | |
553 | 688 for (i = 2; i; i--) { |
589 | 689 rc = ngx_radix32tree_insert(ctx->tree, cidrin.addr, cidrin.mask, |
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690 (uintptr_t) val); |
553 | 691 if (rc == NGX_OK) { |
692 return NGX_CONF_OK; | |
693 } | |
694 | |
695 if (rc == NGX_ERROR) { | |
696 return NGX_CONF_ERROR; | |
697 } | |
698 | |
699 /* rc == NGX_BUSY */ | |
700 | |
701 old = (ngx_http_variable_value_t *) | |
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702 ngx_radix32tree_find(ctx->tree, cidrin.addr & cidrin.mask); |
553 | 703 |
704 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
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705 "duplicate network \"%V\", value: \"%v\", old value: \"%v\"", |
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706 net, val, old); |
553 | 707 |
589 | 708 rc = ngx_radix32tree_delete(ctx->tree, cidrin.addr, cidrin.mask); |
553 | 709 |
710 if (rc == NGX_ERROR) { | |
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711 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid radix tree"); |
553 | 712 return NGX_CONF_ERROR; |
713 } | |
485 | 714 } |
715 | |
553 | 716 return NGX_CONF_ERROR; |
485 | 717 } |
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718 |
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719 |
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720 static ngx_http_variable_value_t * |
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721 ngx_http_geo_value(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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722 ngx_str_t *value) |
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723 { |
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724 uint32_t hash; |
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725 ngx_http_variable_value_t *val; |
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726 ngx_http_variable_value_node_t *vvn; |
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727 |
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728 hash = ngx_crc32_long(value->data, value->len); |
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729 |
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730 val = ngx_http_variable_value_lookup(&ctx->rbtree, value, hash); |
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731 |
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732 if (val) { |
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733 return val; |
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734 } |
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735 |
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736 val = ngx_palloc(ctx->pool, sizeof(ngx_http_variable_value_t)); |
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737 if (val == NULL) { |
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738 return NULL; |
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739 } |
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740 |
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741 val->len = value->len; |
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742 val->data = ngx_pstrdup(ctx->pool, value); |
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743 if (val->data == NULL) { |
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744 return NULL; |
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745 } |
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746 |
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747 val->valid = 1; |
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748 val->no_cacheable = 0; |
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749 val->not_found = 0; |
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750 |
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751 vvn = ngx_palloc(ctx->temp_pool, sizeof(ngx_http_variable_value_node_t)); |
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752 if (vvn == NULL) { |
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753 return NULL; |
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754 } |
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755 |
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756 vvn->node.key = hash; |
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757 vvn->len = val->len; |
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758 vvn->value = val; |
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759 |
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760 ngx_rbtree_insert(&ctx->rbtree, &vvn->node); |
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761 |
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762 return val; |
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763 } |