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