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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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660
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4 * Copyright (C) Nginx, Inc.
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34
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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13 typedef struct {
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582
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14 ngx_http_variable_value_t *value;
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430
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15 u_short start;
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16 u_short end;
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422
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17 } ngx_http_geo_range_t;
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18
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19
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20 typedef struct {
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582
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21 ngx_http_geo_range_t **low;
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430
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22 ngx_http_variable_value_t *default_value;
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422
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23 } ngx_http_geo_high_ranges_t;
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24
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25
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26 typedef struct {
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582
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27 ngx_str_node_t sn;
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28 ngx_http_variable_value_t *value;
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29 size_t offset;
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30 } ngx_http_geo_variable_value_node_t;
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31
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32
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33 typedef struct {
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430
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34 ngx_http_variable_value_t *value;
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35 ngx_str_t *net;
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582
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36 ngx_http_geo_high_ranges_t high;
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430
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37 ngx_radix_tree_t *tree;
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38 ngx_rbtree_t rbtree;
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39 ngx_rbtree_node_t sentinel;
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510
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40 ngx_array_t *proxies;
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430
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41 ngx_pool_t *pool;
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42 ngx_pool_t *temp_pool;
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582
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43
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44 size_t data_size;
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45
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46 ngx_str_t include_name;
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47 ngx_uint_t includes;
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48 ngx_uint_t entries;
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49
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50 unsigned ranges:1;
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51 unsigned outside_entries:1;
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52 unsigned allow_binary_include:1;
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53 unsigned binary_include:1;
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138
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54 } ngx_http_geo_conf_ctx_t;
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34
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55
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56
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430
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57 typedef struct {
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58 union {
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59 ngx_radix_tree_t *tree;
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582
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60 ngx_http_geo_high_ranges_t high;
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430
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61 } u;
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62
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510
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63 ngx_array_t *proxies;
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64
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430
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65 ngx_int_t index;
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66 } ngx_http_geo_ctx_t;
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67
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68
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69 static in_addr_t ngx_http_geo_addr(ngx_http_request_t *r,
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70 ngx_http_geo_ctx_t *ctx);
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510
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71 static in_addr_t ngx_http_geo_real_addr(ngx_http_request_t *r,
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72 ngx_http_geo_ctx_t *ctx);
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34
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73 static char *ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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74 static char *ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf);
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422
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75 static char *ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
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76 ngx_str_t *value);
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77 static char *ngx_http_geo_add_range(ngx_conf_t *cf,
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78 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end);
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79 static ngx_uint_t ngx_http_geo_delete_range(ngx_conf_t *cf,
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80 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end);
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81 static char *ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
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82 ngx_str_t *value);
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83 static ngx_http_variable_value_t *ngx_http_geo_value(ngx_conf_t *cf,
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84 ngx_http_geo_conf_ctx_t *ctx, ngx_str_t *value);
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510
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85 static char *ngx_http_geo_add_proxy(ngx_conf_t *cf,
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86 ngx_http_geo_conf_ctx_t *ctx, ngx_cidr_t *cidr);
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87 static ngx_int_t ngx_http_geo_cidr_value(ngx_conf_t *cf, ngx_str_t *net,
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88 ngx_cidr_t *cidr);
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582
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89 static char *ngx_http_geo_include(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
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90 ngx_str_t *name);
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91 static ngx_int_t ngx_http_geo_include_binary_base(ngx_conf_t *cf,
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92 ngx_http_geo_conf_ctx_t *ctx, ngx_str_t *name);
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93 static void ngx_http_geo_create_binary_base(ngx_http_geo_conf_ctx_t *ctx);
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94 static u_char *ngx_http_geo_copy_values(u_char *base, u_char *p,
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95 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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34
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96
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97
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98 static ngx_command_t ngx_http_geo_commands[] = {
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99
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100 { ngx_string("geo"),
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430
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101 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE12,
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34
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102 ngx_http_geo_block,
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103 NGX_HTTP_MAIN_CONF_OFFSET,
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104 0,
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105 NULL },
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106
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107 ngx_null_command
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108 };
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109
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110
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111 static ngx_http_module_t ngx_http_geo_module_ctx = {
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58
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112 NULL, /* preconfiguration */
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113 NULL, /* postconfiguration */
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34
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114
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115 NULL, /* create main configuration */
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116 NULL, /* init main configuration */
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117
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118 NULL, /* create server configuration */
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119 NULL, /* merge server configuration */
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120
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121 NULL, /* create location configuration */
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122 NULL /* merge location configuration */
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123 };
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124
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125
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126 ngx_module_t ngx_http_geo_module = {
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58
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127 NGX_MODULE_V1,
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34
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128 &ngx_http_geo_module_ctx, /* module context */
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129 ngx_http_geo_commands, /* module directives */
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130 NGX_HTTP_MODULE, /* module type */
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90
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131 NULL, /* init master */
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34
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132 NULL, /* init module */
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90
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133 NULL, /* init process */
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134 NULL, /* init thread */
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135 NULL, /* exit thread */
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136 NULL, /* exit process */
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137 NULL, /* exit master */
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138 NGX_MODULE_V1_PADDING
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34
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139 };
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140
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141
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582
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142 typedef struct {
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143 u_char GEORNG[6];
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144 u_char version;
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145 u_char ptr_size;
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146 uint32_t endianess;
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147 uint32_t crc32;
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148 } ngx_http_geo_header_t;
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149
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150
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151 static ngx_http_geo_header_t ngx_http_geo_header = {
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152 { 'G', 'E', 'O', 'R', 'N', 'G' }, 0, sizeof(void *), 0x12345678, 0
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153 };
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154
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155
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34
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156 /* AF_INET only */
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157
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122
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158 static ngx_int_t
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422
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159 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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160 uintptr_t data)
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34
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161 {
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430
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162 ngx_http_geo_ctx_t *ctx = (ngx_http_geo_ctx_t *) data;
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34
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163
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122
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164 ngx_http_variable_value_t *vv;
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34
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165
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122
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166 vv = (ngx_http_variable_value_t *)
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430
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167 ngx_radix32tree_find(ctx->u.tree, ngx_http_geo_addr(r, ctx));
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38
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168
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122
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169 *v = *vv;
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170
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430
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171 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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172 "http geo: %v", v);
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38
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173
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122
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174 return NGX_OK;
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34
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175 }
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176
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177
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422
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178 static ngx_int_t
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179 ngx_http_geo_range_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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180 uintptr_t data)
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181 {
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430
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182 ngx_http_geo_ctx_t *ctx = (ngx_http_geo_ctx_t *) data;
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422
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183
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184 in_addr_t addr;
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582
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185 ngx_uint_t n;
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422
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186 ngx_http_geo_range_t *range;
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187
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582
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188 *v = *ctx->u.high.default_value;
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422
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189
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430
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190 addr = ngx_http_geo_addr(r, ctx);
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422
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191
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582
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192 range = ctx->u.high.low[addr >> 16];
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422
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193
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582
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194 if (range) {
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195 n = addr & 0xffff;
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196 do {
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197 if (n >= (ngx_uint_t) range->start && n <= (ngx_uint_t) range->end)
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198 {
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199 *v = *range->value;
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200 break;
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201 }
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202 } while ((++range)->value);
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422
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203 }
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204
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430
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205 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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206 "http geo: %v", v);
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422
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207
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208 return NGX_OK;
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209 }
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210
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211
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430
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212 static in_addr_t
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213 ngx_http_geo_addr(ngx_http_request_t *r, ngx_http_geo_ctx_t *ctx)
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214 {
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510
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215 u_char *p, *ip;
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216 size_t len;
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217 in_addr_t addr;
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218 ngx_uint_t i, n;
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219 ngx_in_cidr_t *proxies;
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220 ngx_table_elt_t *xfwd;
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221
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222 addr = ngx_http_geo_real_addr(r, ctx);
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223
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224 xfwd = r->headers_in.x_forwarded_for;
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225
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226 if (xfwd == NULL || ctx->proxies == NULL) {
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227 return addr;
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228 }
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229
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230 proxies = ctx->proxies->elts;
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231 n = ctx->proxies->nelts;
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232
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233 for (i = 0; i < n; i++) {
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234 if ((addr & proxies[i].mask) == proxies[i].addr) {
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235
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236 len = xfwd->value.len;
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237 ip = xfwd->value.data;
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238
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239 for (p = ip + len - 1; p > ip; p--) {
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240 if (*p == ' ' || *p == ',') {
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241 p++;
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242 len -= p - ip;
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243 ip = p;
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244 break;
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245 }
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246 }
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247
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248 return ntohl(ngx_inet_addr(ip, len));
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249 }
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250 }
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251
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252 return addr;
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253 }
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254
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255
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256 static in_addr_t
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257 ngx_http_geo_real_addr(ngx_http_request_t *r, ngx_http_geo_ctx_t *ctx)
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258 {
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430
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259 struct sockaddr_in *sin;
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260 ngx_http_variable_value_t *v;
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626
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261 #if (NGX_HAVE_INET6)
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262 u_char *p;
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263 in_addr_t addr;
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264 struct sockaddr_in6 *sin6;
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265 #endif
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430
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266
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267 if (ctx->index == -1) {
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268 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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269 "http geo started: %V", &r->connection->addr_text);
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270
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626
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271 switch (r->connection->sockaddr->sa_family) {
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272
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273 case AF_INET:
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274 sin = (struct sockaddr_in *) r->connection->sockaddr;
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275 return ntohl(sin->sin_addr.s_addr);
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276
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277 #if (NGX_HAVE_INET6)
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278
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279 case AF_INET6:
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280 sin6 = (struct sockaddr_in6 *) r->connection->sockaddr;
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281
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282 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
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283 p = sin6->sin6_addr.s6_addr;
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284 addr = p[12] << 24;
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285 addr += p[13] << 16;
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286 addr += p[14] << 8;
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287 addr += p[15];
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288
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289 return addr;
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290 }
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291
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292 #endif
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448
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293 }
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294
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626
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295 return INADDR_NONE;
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430
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296 }
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297
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298 v = ngx_http_get_flushed_variable(r, ctx->index);
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299
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300 if (v == NULL || v->not_found) {
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301 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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302 "http geo not found");
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303
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304 return 0;
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305 }
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306
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307 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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308 "http geo started: %v", v);
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309
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310 return ntohl(ngx_inet_addr(v->data, v->len));
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311 }
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312
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313
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38
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314 static char *
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315 ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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34
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316 {
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138
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317 char *rv;
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582
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318 void **p;
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422
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319 size_t len;
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138
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320 ngx_str_t *value, name;
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422
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321 ngx_uint_t i;
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138
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322 ngx_conf_t save;
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323 ngx_pool_t *pool;
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422
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324 ngx_array_t *a;
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328
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325 ngx_http_variable_t *var;
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430
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326 ngx_http_geo_ctx_t *geo;
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138
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327 ngx_http_geo_conf_ctx_t ctx;
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34
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328
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50
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329 value = cf->args->elts;
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330
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430
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331 geo = ngx_palloc(cf->pool, sizeof(ngx_http_geo_ctx_t));
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332 if (geo == NULL) {
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333 return NGX_CONF_ERROR;
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334 }
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335
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50
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336 name = value[1];
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430
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337 name.len--;
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338 name.data++;
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50
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339
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430
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340 if (cf->args->nelts == 3) {
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341
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342 geo->index = ngx_http_get_variable_index(cf, &name);
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343 if (geo->index == NGX_ERROR) {
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344 return NGX_CONF_ERROR;
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345 }
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346
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347 name = value[2];
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50
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348 name.len--;
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349 name.data++;
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430
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350
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351 } else {
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352 geo->index = -1;
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50
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353 }
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354
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340
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355 var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE);
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50
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356 if (var == NULL) {
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34
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357 return NGX_CONF_ERROR;
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358 }
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359
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132
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360 pool = ngx_create_pool(16384, cf->log);
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50
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361 if (pool == NULL) {
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34
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362 return NGX_CONF_ERROR;
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363 }
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364
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582
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365 ngx_memzero(&ctx, sizeof(ngx_http_geo_conf_ctx_t));
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366
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422
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367 ctx.temp_pool = ngx_create_pool(16384, cf->log);
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368 if (ctx.temp_pool == NULL) {
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34
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369 return NGX_CONF_ERROR;
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370 }
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371
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582
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372 ngx_rbtree_init(&ctx.rbtree, &ctx.sentinel, ngx_str_rbtree_insert_value);
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422
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373
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138
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374 ctx.pool = cf->pool;
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582
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375 ctx.data_size = sizeof(ngx_http_geo_header_t)
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376 + sizeof(ngx_http_variable_value_t)
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377 + 0x10000 * sizeof(ngx_http_geo_range_t *);
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378 ctx.allow_binary_include = 1;
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34
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379
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380 save = *cf;
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381 cf->pool = pool;
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138
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382 cf->ctx = &ctx;
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34
|
383 cf->handler = ngx_http_geo;
|
|
|
384 cf->handler_conf = conf;
|
|
|
385
|
|
|
386 rv = ngx_conf_parse(cf, NULL);
|
|
|
387
|
|
|
388 *cf = save;
|
|
|
389
|
|
510
|
390 geo->proxies = ctx.proxies;
|
|
|
391
|
|
582
|
392 if (ctx.high.low) {
|
|
|
393
|
|
|
394 if (!ctx.binary_include) {
|
|
|
395 for (i = 0; i < 0x10000; i++) {
|
|
|
396 a = (ngx_array_t *) ctx.high.low[i];
|
|
|
397
|
|
|
398 if (a == NULL || a->nelts == 0) {
|
|
|
399 continue;
|
|
|
400 }
|
|
422
|
401
|
|
582
|
402 len = a->nelts * sizeof(ngx_http_geo_range_t);
|
|
422
|
403
|
|
582
|
404 ctx.high.low[i] = ngx_palloc(cf->pool, len + sizeof(void *));
|
|
|
405 if (ctx.high.low[i] == NULL) {
|
|
|
406 return NGX_CONF_ERROR;
|
|
|
407 }
|
|
|
408
|
|
|
409 p = (void **) ngx_cpymem(ctx.high.low[i], a->elts, len);
|
|
|
410 *p = NULL;
|
|
|
411 ctx.data_size += len + sizeof(void *);
|
|
422
|
412 }
|
|
|
413
|
|
582
|
414 if (ctx.allow_binary_include
|
|
|
415 && !ctx.outside_entries
|
|
|
416 && ctx.entries > 100000
|
|
|
417 && ctx.includes == 1)
|
|
|
418 {
|
|
|
419 ngx_http_geo_create_binary_base(&ctx);
|
|
422
|
420 }
|
|
|
421 }
|
|
|
422
|
|
430
|
423 geo->u.high = ctx.high;
|
|
|
424
|
|
422
|
425 var->get_handler = ngx_http_geo_range_variable;
|
|
430
|
426 var->data = (uintptr_t) geo;
|
|
34
|
427
|
|
582
|
428 if (ctx.high.default_value == NULL) {
|
|
|
429 ctx.high.default_value = &ngx_http_variable_null_value;
|
|
|
430 }
|
|
|
431
|
|
422
|
432 ngx_destroy_pool(ctx.temp_pool);
|
|
|
433 ngx_destroy_pool(pool);
|
|
|
434
|
|
|
435 } else {
|
|
424
|
436 if (ctx.tree == NULL) {
|
|
|
437 ctx.tree = ngx_radix_tree_create(cf->pool, -1);
|
|
|
438 if (ctx.tree == NULL) {
|
|
|
439 return NGX_CONF_ERROR;
|
|
|
440 }
|
|
|
441 }
|
|
|
442
|
|
430
|
443 geo->u.tree = ctx.tree;
|
|
|
444
|
|
422
|
445 var->get_handler = ngx_http_geo_cidr_variable;
|
|
430
|
446 var->data = (uintptr_t) geo;
|
|
422
|
447
|
|
|
448 ngx_destroy_pool(ctx.temp_pool);
|
|
|
449 ngx_destroy_pool(pool);
|
|
|
450
|
|
|
451 if (ngx_radix32tree_find(ctx.tree, 0) != NGX_RADIX_NO_VALUE) {
|
|
|
452 return rv;
|
|
|
453 }
|
|
|
454
|
|
|
455 if (ngx_radix32tree_insert(ctx.tree, 0, 0,
|
|
|
456 (uintptr_t) &ngx_http_variable_null_value)
|
|
|
457 == NGX_ERROR)
|
|
|
458 {
|
|
|
459 return NGX_CONF_ERROR;
|
|
|
460 }
|
|
34
|
461 }
|
|
|
462
|
|
|
463 return rv;
|
|
|
464 }
|
|
|
465
|
|
|
466
|
|
38
|
467 static char *
|
|
|
468 ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
|
|
34
|
469 {
|
|
422
|
470 char *rv;
|
|
582
|
471 ngx_str_t *value;
|
|
510
|
472 ngx_cidr_t cidr;
|
|
422
|
473 ngx_http_geo_conf_ctx_t *ctx;
|
|
34
|
474
|
|
138
|
475 ctx = cf->ctx;
|
|
34
|
476
|
|
422
|
477 value = cf->args->elts;
|
|
|
478
|
|
|
479 if (cf->args->nelts == 1) {
|
|
|
480
|
|
|
481 if (ngx_strcmp(value[0].data, "ranges") == 0) {
|
|
|
482
|
|
|
483 if (ctx->tree) {
|
|
|
484 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
485 "the \"ranges\" directive must be "
|
|
|
486 "the first directive inside \"geo\" block");
|
|
|
487 goto failed;
|
|
|
488 }
|
|
|
489
|
|
582
|
490 ctx->ranges = 1;
|
|
422
|
491
|
|
|
492 rv = NGX_CONF_OK;
|
|
|
493
|
|
|
494 goto done;
|
|
|
495 }
|
|
|
496 }
|
|
|
497
|
|
34
|
498 if (cf->args->nelts != 2) {
|
|
|
499 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
500 "invalid number of the geo parameters");
|
|
422
|
501 goto failed;
|
|
34
|
502 }
|
|
|
503
|
|
422
|
504 if (ngx_strcmp(value[0].data, "include") == 0) {
|
|
|
505
|
|
582
|
506 rv = ngx_http_geo_include(cf, ctx, &value[1]);
|
|
422
|
507
|
|
|
508 goto done;
|
|
510
|
509
|
|
|
510 } else if (ngx_strcmp(value[0].data, "proxy") == 0) {
|
|
|
511
|
|
|
512 if (ngx_http_geo_cidr_value(cf, &value[1], &cidr) != NGX_OK) {
|
|
|
513 goto failed;
|
|
|
514 }
|
|
|
515
|
|
|
516 rv = ngx_http_geo_add_proxy(cf, ctx, &cidr);
|
|
|
517
|
|
|
518 goto done;
|
|
422
|
519 }
|
|
|
520
|
|
582
|
521 if (ctx->ranges) {
|
|
422
|
522 rv = ngx_http_geo_range(cf, ctx, value);
|
|
|
523
|
|
|
524 } else {
|
|
|
525 rv = ngx_http_geo_cidr(cf, ctx, value);
|
|
|
526 }
|
|
|
527
|
|
|
528 done:
|
|
|
529
|
|
|
530 ngx_reset_pool(cf->pool);
|
|
|
531
|
|
|
532 return rv;
|
|
|
533
|
|
|
534 failed:
|
|
|
535
|
|
|
536 ngx_reset_pool(cf->pool);
|
|
|
537
|
|
|
538 return NGX_CONF_ERROR;
|
|
|
539 }
|
|
|
540
|
|
|
541
|
|
|
542 static char *
|
|
|
543 ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
544 ngx_str_t *value)
|
|
|
545 {
|
|
582
|
546 u_char *p, *last;
|
|
|
547 in_addr_t start, end;
|
|
|
548 ngx_str_t *net;
|
|
|
549 ngx_uint_t del;
|
|
422
|
550
|
|
|
551 if (ngx_strcmp(value[0].data, "default") == 0) {
|
|
|
552
|
|
582
|
553 if (ctx->high.default_value) {
|
|
|
554 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
555 "duplicate default geo range value: \"%V\", old value: \"%v\"",
|
|
|
556 &value[1], ctx->high.default_value);
|
|
422
|
557 }
|
|
|
558
|
|
582
|
559 ctx->high.default_value = ngx_http_geo_value(cf, ctx, &value[1]);
|
|
|
560 if (ctx->high.default_value == NULL) {
|
|
|
561 return NGX_CONF_ERROR;
|
|
422
|
562 }
|
|
|
563
|
|
|
564 return NGX_CONF_OK;
|
|
|
565 }
|
|
|
566
|
|
582
|
567 if (ctx->binary_include) {
|
|
|
568 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
672
|
569 "binary geo range base \"%s\" cannot be mixed with usual entries",
|
|
582
|
570 ctx->include_name.data);
|
|
|
571 return NGX_CONF_ERROR;
|
|
|
572 }
|
|
|
573
|
|
|
574 if (ctx->high.low == NULL) {
|
|
|
575 ctx->high.low = ngx_pcalloc(ctx->pool,
|
|
|
576 0x10000 * sizeof(ngx_http_geo_range_t *));
|
|
|
577 if (ctx->high.low == NULL) {
|
|
|
578 return NGX_CONF_ERROR;
|
|
|
579 }
|
|
|
580 }
|
|
|
581
|
|
|
582 ctx->entries++;
|
|
|
583 ctx->outside_entries = 1;
|
|
|
584
|
|
422
|
585 if (ngx_strcmp(value[0].data, "delete") == 0) {
|
|
|
586 net = &value[1];
|
|
|
587 del = 1;
|
|
|
588
|
|
|
589 } else {
|
|
|
590 net = &value[0];
|
|
|
591 del = 0;
|
|
|
592 }
|
|
|
593
|
|
|
594 last = net->data + net->len;
|
|
|
595
|
|
|
596 p = ngx_strlchr(net->data, last, '-');
|
|
|
597
|
|
|
598 if (p == NULL) {
|
|
|
599 goto invalid;
|
|
|
600 }
|
|
|
601
|
|
|
602 start = ngx_inet_addr(net->data, p - net->data);
|
|
|
603
|
|
|
604 if (start == INADDR_NONE) {
|
|
|
605 goto invalid;
|
|
|
606 }
|
|
|
607
|
|
|
608 start = ntohl(start);
|
|
|
609
|
|
|
610 p++;
|
|
|
611
|
|
|
612 end = ngx_inet_addr(p, last - p);
|
|
|
613
|
|
|
614 if (end == INADDR_NONE) {
|
|
|
615 goto invalid;
|
|
|
616 }
|
|
|
617
|
|
|
618 end = ntohl(end);
|
|
|
619
|
|
|
620 if (start > end) {
|
|
|
621 goto invalid;
|
|
|
622 }
|
|
|
623
|
|
|
624 if (del) {
|
|
|
625 if (ngx_http_geo_delete_range(cf, ctx, start, end)) {
|
|
|
626 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
627 "no address range \"%V\" to delete", net);
|
|
|
628 }
|
|
|
629
|
|
|
630 return NGX_CONF_OK;
|
|
|
631 }
|
|
|
632
|
|
|
633 ctx->value = ngx_http_geo_value(cf, ctx, &value[1]);
|
|
|
634
|
|
|
635 if (ctx->value == NULL) {
|
|
|
636 return NGX_CONF_ERROR;
|
|
|
637 }
|
|
|
638
|
|
|
639 ctx->net = net;
|
|
|
640
|
|
|
641 return ngx_http_geo_add_range(cf, ctx, start, end);
|
|
|
642
|
|
|
643 invalid:
|
|
|
644
|
|
|
645 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid range \"%V\"", net);
|
|
|
646
|
|
|
647 return NGX_CONF_ERROR;
|
|
|
648 }
|
|
|
649
|
|
|
650
|
|
|
651 /* the add procedure is optimized to add a growing up sequence */
|
|
|
652
|
|
|
653 static char *
|
|
|
654 ngx_http_geo_add_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
655 in_addr_t start, in_addr_t end)
|
|
|
656 {
|
|
|
657 in_addr_t n;
|
|
|
658 ngx_uint_t h, i, s, e;
|
|
|
659 ngx_array_t *a;
|
|
|
660 ngx_http_geo_range_t *range;
|
|
|
661
|
|
564
|
662 for (n = start; n <= end; n = (n + 0x10000) & 0xffff0000) {
|
|
422
|
663
|
|
|
664 h = n >> 16;
|
|
438
|
665
|
|
|
666 if (n == start) {
|
|
|
667 s = n & 0xffff;
|
|
|
668 } else {
|
|
|
669 s = 0;
|
|
|
670 }
|
|
422
|
671
|
|
|
672 if ((n | 0xffff) > end) {
|
|
|
673 e = end & 0xffff;
|
|
|
674
|
|
|
675 } else {
|
|
|
676 e = 0xffff;
|
|
|
677 }
|
|
|
678
|
|
582
|
679 a = (ngx_array_t *) ctx->high.low[h];
|
|
422
|
680
|
|
|
681 if (a == NULL) {
|
|
|
682 a = ngx_array_create(ctx->temp_pool, 64,
|
|
|
683 sizeof(ngx_http_geo_range_t));
|
|
|
684 if (a == NULL) {
|
|
|
685 return NGX_CONF_ERROR;
|
|
|
686 }
|
|
|
687
|
|
582
|
688 ctx->high.low[h] = (ngx_http_geo_range_t *) a;
|
|
422
|
689 }
|
|
|
690
|
|
|
691 i = a->nelts;
|
|
|
692 range = a->elts;
|
|
|
693
|
|
|
694 while (i) {
|
|
|
695
|
|
|
696 i--;
|
|
|
697
|
|
|
698 if (e < (ngx_uint_t) range[i].start) {
|
|
|
699 continue;
|
|
|
700 }
|
|
|
701
|
|
|
702 if (s > (ngx_uint_t) range[i].end) {
|
|
|
703
|
|
|
704 /* add after the range */
|
|
|
705
|
|
|
706 range = ngx_array_push(a);
|
|
|
707 if (range == NULL) {
|
|
|
708 return NGX_CONF_ERROR;
|
|
|
709 }
|
|
|
710
|
|
|
711 range = a->elts;
|
|
|
712
|
|
620
|
713 ngx_memmove(&range[i + 2], &range[i + 1],
|
|
422
|
714 (a->nelts - 2 - i) * sizeof(ngx_http_geo_range_t));
|
|
|
715
|
|
438
|
716 range[i + 1].start = (u_short) s;
|
|
|
717 range[i + 1].end = (u_short) e;
|
|
|
718 range[i + 1].value = ctx->value;
|
|
422
|
719
|
|
|
720 goto next;
|
|
|
721 }
|
|
|
722
|
|
|
723 if (s == (ngx_uint_t) range[i].start
|
|
|
724 && e == (ngx_uint_t) range[i].end)
|
|
|
725 {
|
|
|
726 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
727 "duplicate range \"%V\", value: \"%v\", old value: \"%v\"",
|
|
|
728 ctx->net, ctx->value, range[i].value);
|
|
438
|
729
|
|
|
730 range[i].value = ctx->value;
|
|
|
731
|
|
|
732 goto next;
|
|
|
733 }
|
|
|
734
|
|
|
735 if (s > (ngx_uint_t) range[i].start
|
|
|
736 && e < (ngx_uint_t) range[i].end)
|
|
|
737 {
|
|
|
738 /* split the range and insert the new one */
|
|
|
739
|
|
|
740 range = ngx_array_push(a);
|
|
|
741 if (range == NULL) {
|
|
|
742 return NGX_CONF_ERROR;
|
|
|
743 }
|
|
|
744
|
|
|
745 range = ngx_array_push(a);
|
|
|
746 if (range == NULL) {
|
|
|
747 return NGX_CONF_ERROR;
|
|
|
748 }
|
|
|
749
|
|
|
750 range = a->elts;
|
|
|
751
|
|
620
|
752 ngx_memmove(&range[i + 3], &range[i + 1],
|
|
438
|
753 (a->nelts - 3 - i) * sizeof(ngx_http_geo_range_t));
|
|
|
754
|
|
|
755 range[i + 2].start = (u_short) (e + 1);
|
|
|
756 range[i + 2].end = range[i].end;
|
|
|
757 range[i + 2].value = range[i].value;
|
|
|
758
|
|
|
759 range[i + 1].start = (u_short) s;
|
|
|
760 range[i + 1].end = (u_short) e;
|
|
|
761 range[i + 1].value = ctx->value;
|
|
|
762
|
|
|
763 range[i].end = (u_short) (s - 1);
|
|
|
764
|
|
|
765 goto next;
|
|
422
|
766 }
|
|
|
767
|
|
438
|
768 if (s == (ngx_uint_t) range[i].start
|
|
|
769 && e < (ngx_uint_t) range[i].end)
|
|
|
770 {
|
|
|
771 /* shift the range start and insert the new range */
|
|
|
772
|
|
|
773 range = ngx_array_push(a);
|
|
|
774 if (range == NULL) {
|
|
|
775 return NGX_CONF_ERROR;
|
|
|
776 }
|
|
|
777
|
|
|
778 range = a->elts;
|
|
|
779
|
|
620
|
780 ngx_memmove(&range[i + 1], &range[i],
|
|
440
|
781 (a->nelts - 1 - i) * sizeof(ngx_http_geo_range_t));
|
|
438
|
782
|
|
|
783 range[i + 1].start = (u_short) (e + 1);
|
|
|
784
|
|
|
785 range[i].start = (u_short) s;
|
|
|
786 range[i].end = (u_short) e;
|
|
|
787 range[i].value = ctx->value;
|
|
|
788
|
|
|
789 goto next;
|
|
|
790 }
|
|
|
791
|
|
|
792 if (s > (ngx_uint_t) range[i].start
|
|
|
793 && e == (ngx_uint_t) range[i].end)
|
|
|
794 {
|
|
|
795 /* shift the range end and insert the new range */
|
|
|
796
|
|
|
797 range = ngx_array_push(a);
|
|
|
798 if (range == NULL) {
|
|
|
799 return NGX_CONF_ERROR;
|
|
|
800 }
|
|
|
801
|
|
|
802 range = a->elts;
|
|
|
803
|
|
620
|
804 ngx_memmove(&range[i + 2], &range[i + 1],
|
|
438
|
805 (a->nelts - 2 - i) * sizeof(ngx_http_geo_range_t));
|
|
|
806
|
|
|
807 range[i + 1].start = (u_short) s;
|
|
|
808 range[i + 1].end = (u_short) e;
|
|
|
809 range[i + 1].value = ctx->value;
|
|
|
810
|
|
|
811 range[i].end = (u_short) (s - 1);
|
|
|
812
|
|
|
813 goto next;
|
|
|
814 }
|
|
|
815
|
|
|
816 s = (ngx_uint_t) range[i].start;
|
|
|
817 e = (ngx_uint_t) range[i].end;
|
|
|
818
|
|
422
|
819 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
438
|
820 "range \"%V\" overlaps \"%d.%d.%d.%d-%d.%d.%d.%d\"",
|
|
|
821 ctx->net,
|
|
|
822 h >> 8, h & 0xff, s >> 8, s & 0xff,
|
|
|
823 h >> 8, h & 0xff, e >> 8, e & 0xff);
|
|
422
|
824
|
|
|
825 return NGX_CONF_ERROR;
|
|
|
826 }
|
|
|
827
|
|
|
828 /* add the first range */
|
|
|
829
|
|
|
830 range = ngx_array_push(a);
|
|
|
831 if (range == NULL) {
|
|
|
832 return NGX_CONF_ERROR;
|
|
|
833 }
|
|
|
834
|
|
|
835 range->start = (u_short) s;
|
|
|
836 range->end = (u_short) e;
|
|
|
837 range->value = ctx->value;
|
|
438
|
838
|
|
|
839 next:
|
|
|
840
|
|
|
841 continue;
|
|
422
|
842 }
|
|
|
843
|
|
|
844 return NGX_CONF_OK;
|
|
|
845 }
|
|
|
846
|
|
|
847
|
|
|
848 static ngx_uint_t
|
|
|
849 ngx_http_geo_delete_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
850 in_addr_t start, in_addr_t end)
|
|
|
851 {
|
|
|
852 in_addr_t n;
|
|
|
853 ngx_uint_t h, i, s, e, warn;
|
|
|
854 ngx_array_t *a;
|
|
|
855 ngx_http_geo_range_t *range;
|
|
|
856
|
|
|
857 warn = 0;
|
|
|
858
|
|
438
|
859 for (n = start; n <= end; n += 0x10000) {
|
|
422
|
860
|
|
|
861 h = n >> 16;
|
|
438
|
862
|
|
|
863 if (n == start) {
|
|
|
864 s = n & 0xffff;
|
|
|
865 } else {
|
|
|
866 s = 0;
|
|
|
867 }
|
|
422
|
868
|
|
|
869 if ((n | 0xffff) > end) {
|
|
|
870 e = end & 0xffff;
|
|
|
871
|
|
|
872 } else {
|
|
|
873 e = 0xffff;
|
|
|
874 }
|
|
|
875
|
|
582
|
876 a = (ngx_array_t *) ctx->high.low[h];
|
|
422
|
877
|
|
|
878 if (a == NULL) {
|
|
|
879 warn = 1;
|
|
|
880 continue;
|
|
|
881 }
|
|
|
882
|
|
|
883 range = a->elts;
|
|
|
884 for (i = 0; i < a->nelts; i++) {
|
|
|
885
|
|
|
886 if (s == (ngx_uint_t) range[i].start
|
|
|
887 && e == (ngx_uint_t) range[i].end)
|
|
|
888 {
|
|
620
|
889 ngx_memmove(&range[i], &range[i + 1],
|
|
422
|
890 (a->nelts - 1 - i) * sizeof(ngx_http_geo_range_t));
|
|
438
|
891
|
|
|
892 a->nelts--;
|
|
|
893
|
|
422
|
894 break;
|
|
|
895 }
|
|
|
896
|
|
|
897 if (s != (ngx_uint_t) range[i].start
|
|
|
898 && e != (ngx_uint_t) range[i].end)
|
|
|
899 {
|
|
|
900 continue;
|
|
|
901 }
|
|
|
902
|
|
|
903 warn = 1;
|
|
|
904 }
|
|
|
905 }
|
|
|
906
|
|
|
907 return warn;
|
|
|
908 }
|
|
|
909
|
|
|
910
|
|
|
911 static char *
|
|
|
912 ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
913 ngx_str_t *value)
|
|
|
914 {
|
|
|
915 ngx_int_t rc, del;
|
|
|
916 ngx_str_t *net;
|
|
|
917 ngx_uint_t i;
|
|
454
|
918 ngx_cidr_t cidr;
|
|
422
|
919 ngx_http_variable_value_t *val, *old;
|
|
|
920
|
|
|
921 if (ctx->tree == NULL) {
|
|
|
922 ctx->tree = ngx_radix_tree_create(ctx->pool, -1);
|
|
|
923 if (ctx->tree == NULL) {
|
|
|
924 return NGX_CONF_ERROR;
|
|
|
925 }
|
|
34
|
926 }
|
|
|
927
|
|
|
928 if (ngx_strcmp(value[0].data, "default") == 0) {
|
|
454
|
929 cidr.u.in.addr = 0;
|
|
|
930 cidr.u.in.mask = 0;
|
|
422
|
931 net = &value[0];
|
|
34
|
932
|
|
|
933 } else {
|
|
422
|
934 if (ngx_strcmp(value[0].data, "delete") == 0) {
|
|
|
935 net = &value[1];
|
|
|
936 del = 1;
|
|
|
937
|
|
|
938 } else {
|
|
|
939 net = &value[0];
|
|
|
940 del = 0;
|
|
|
941 }
|
|
|
942
|
|
510
|
943 if (ngx_http_geo_cidr_value(cf, net, &cidr) != NGX_OK) {
|
|
|
944 return NGX_CONF_ERROR;
|
|
326
|
945 }
|
|
|
946
|
|
422
|
947 if (del) {
|
|
454
|
948 if (ngx_radix32tree_delete(ctx->tree, cidr.u.in.addr,
|
|
|
949 cidr.u.in.mask)
|
|
422
|
950 != NGX_OK)
|
|
|
951 {
|
|
|
952 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
953 "no network \"%V\" to delete", net);
|
|
|
954 }
|
|
426
|
955
|
|
|
956 return NGX_CONF_OK;
|
|
34
|
957 }
|
|
|
958 }
|
|
|
959
|
|
422
|
960 val = ngx_http_geo_value(cf, ctx, &value[1]);
|
|
34
|
961
|
|
422
|
962 if (val == NULL) {
|
|
|
963 return NGX_CONF_ERROR;
|
|
34
|
964 }
|
|
|
965
|
|
102
|
966 for (i = 2; i; i--) {
|
|
454
|
967 rc = ngx_radix32tree_insert(ctx->tree, cidr.u.in.addr, cidr.u.in.mask,
|
|
422
|
968 (uintptr_t) val);
|
|
102
|
969 if (rc == NGX_OK) {
|
|
|
970 return NGX_CONF_OK;
|
|
|
971 }
|
|
|
972
|
|
|
973 if (rc == NGX_ERROR) {
|
|
|
974 return NGX_CONF_ERROR;
|
|
|
975 }
|
|
|
976
|
|
|
977 /* rc == NGX_BUSY */
|
|
|
978
|
|
526
|
979 old = (ngx_http_variable_value_t *)
|
|
454
|
980 ngx_radix32tree_find(ctx->tree, cidr.u.in.addr & cidr.u.in.mask);
|
|
102
|
981
|
|
|
982 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
422
|
983 "duplicate network \"%V\", value: \"%v\", old value: \"%v\"",
|
|
|
984 net, val, old);
|
|
102
|
985
|
|
454
|
986 rc = ngx_radix32tree_delete(ctx->tree, cidr.u.in.addr, cidr.u.in.mask);
|
|
102
|
987
|
|
|
988 if (rc == NGX_ERROR) {
|
|
422
|
989 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid radix tree");
|
|
102
|
990 return NGX_CONF_ERROR;
|
|
|
991 }
|
|
34
|
992 }
|
|
|
993
|
|
102
|
994 return NGX_CONF_ERROR;
|
|
34
|
995 }
|
|
422
|
996
|
|
|
997
|
|
|
998 static ngx_http_variable_value_t *
|
|
|
999 ngx_http_geo_value(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
1000 ngx_str_t *value)
|
|
|
1001 {
|
|
582
|
1002 uint32_t hash;
|
|
|
1003 ngx_http_variable_value_t *val;
|
|
|
1004 ngx_http_geo_variable_value_node_t *gvvn;
|
|
422
|
1005
|
|
|
1006 hash = ngx_crc32_long(value->data, value->len);
|
|
|
1007
|
|
582
|
1008 gvvn = (ngx_http_geo_variable_value_node_t *)
|
|
|
1009 ngx_str_rbtree_lookup(&ctx->rbtree, value, hash);
|
|
422
|
1010
|
|
582
|
1011 if (gvvn) {
|
|
|
1012 return gvvn->value;
|
|
422
|
1013 }
|
|
|
1014
|
|
|
1015 val = ngx_palloc(ctx->pool, sizeof(ngx_http_variable_value_t));
|
|
|
1016 if (val == NULL) {
|
|
|
1017 return NULL;
|
|
|
1018 }
|
|
|
1019
|
|
|
1020 val->len = value->len;
|
|
|
1021 val->data = ngx_pstrdup(ctx->pool, value);
|
|
|
1022 if (val->data == NULL) {
|
|
|
1023 return NULL;
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 val->valid = 1;
|
|
|
1027 val->no_cacheable = 0;
|
|
|
1028 val->not_found = 0;
|
|
|
1029
|
|
582
|
1030 gvvn = ngx_palloc(ctx->temp_pool,
|
|
|
1031 sizeof(ngx_http_geo_variable_value_node_t));
|
|
|
1032 if (gvvn == NULL) {
|
|
422
|
1033 return NULL;
|
|
|
1034 }
|
|
|
1035
|
|
582
|
1036 gvvn->sn.node.key = hash;
|
|
|
1037 gvvn->sn.str.len = val->len;
|
|
|
1038 gvvn->sn.str.data = val->data;
|
|
|
1039 gvvn->value = val;
|
|
|
1040 gvvn->offset = 0;
|
|
422
|
1041
|
|
582
|
1042 ngx_rbtree_insert(&ctx->rbtree, &gvvn->sn.node);
|
|
|
1043
|
|
|
1044 ctx->data_size += ngx_align(sizeof(ngx_http_variable_value_t) + value->len,
|
|
|
1045 sizeof(void *));
|
|
422
|
1046
|
|
|
1047 return val;
|
|
|
1048 }
|
|
510
|
1049
|
|
|
1050
|
|
|
1051 static char *
|
|
|
1052 ngx_http_geo_add_proxy(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
1053 ngx_cidr_t *cidr)
|
|
|
1054 {
|
|
|
1055 ngx_in_cidr_t *c;
|
|
|
1056
|
|
|
1057 if (ctx->proxies == NULL) {
|
|
|
1058 ctx->proxies = ngx_array_create(ctx->pool, 4, sizeof(ngx_in_cidr_t));
|
|
|
1059 if (ctx->proxies == NULL) {
|
|
|
1060 return NGX_CONF_ERROR;
|
|
|
1061 }
|
|
|
1062 }
|
|
|
1063
|
|
|
1064 c = ngx_array_push(ctx->proxies);
|
|
|
1065 if (c == NULL) {
|
|
|
1066 return NGX_CONF_ERROR;
|
|
|
1067 }
|
|
|
1068
|
|
|
1069 c->addr = cidr->u.in.addr;
|
|
|
1070 c->mask = cidr->u.in.mask;
|
|
|
1071
|
|
|
1072 return NGX_CONF_OK;
|
|
|
1073 }
|
|
|
1074
|
|
|
1075
|
|
|
1076 static ngx_int_t
|
|
|
1077 ngx_http_geo_cidr_value(ngx_conf_t *cf, ngx_str_t *net, ngx_cidr_t *cidr)
|
|
|
1078 {
|
|
|
1079 ngx_int_t rc;
|
|
|
1080
|
|
|
1081 if (ngx_strcmp(net->data, "255.255.255.255") == 0) {
|
|
|
1082 cidr->u.in.addr = 0xffffffff;
|
|
|
1083 cidr->u.in.mask = 0xffffffff;
|
|
|
1084
|
|
|
1085 return NGX_OK;
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 rc = ngx_ptocidr(net, cidr);
|
|
|
1089
|
|
|
1090 if (rc == NGX_ERROR) {
|
|
|
1091 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid network \"%V\"", net);
|
|
|
1092 return NGX_ERROR;
|
|
|
1093 }
|
|
|
1094
|
|
|
1095 if (cidr->family != AF_INET) {
|
|
|
1096 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"geo\" supports IPv4 only");
|
|
|
1097 return NGX_ERROR;
|
|
|
1098 }
|
|
|
1099
|
|
|
1100 if (rc == NGX_DONE) {
|
|
|
1101 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1102 "low address bits of %V are meaningless", net);
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 cidr->u.in.addr = ntohl(cidr->u.in.addr);
|
|
|
1106 cidr->u.in.mask = ntohl(cidr->u.in.mask);
|
|
|
1107
|
|
|
1108 return NGX_OK;
|
|
|
1109 }
|
|
582
|
1110
|
|
|
1111
|
|
|
1112 static char *
|
|
|
1113 ngx_http_geo_include(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
1114 ngx_str_t *name)
|
|
|
1115 {
|
|
|
1116 char *rv;
|
|
|
1117 ngx_str_t file;
|
|
|
1118
|
|
|
1119 file.len = name->len + 4;
|
|
|
1120 file.data = ngx_pnalloc(ctx->temp_pool, name->len + 5);
|
|
|
1121 if (file.data == NULL) {
|
|
|
1122 return NGX_CONF_ERROR;
|
|
|
1123 }
|
|
|
1124
|
|
|
1125 ngx_sprintf(file.data, "%V.bin%Z", name);
|
|
|
1126
|
|
|
1127 if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK) {
|
|
|
1128 return NGX_CONF_ERROR;
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 if (ctx->ranges) {
|
|
|
1132 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data);
|
|
|
1133
|
|
|
1134 switch (ngx_http_geo_include_binary_base(cf, ctx, &file)) {
|
|
|
1135 case NGX_OK:
|
|
|
1136 return NGX_CONF_OK;
|
|
|
1137 case NGX_ERROR:
|
|
|
1138 return NGX_CONF_ERROR;
|
|
|
1139 default:
|
|
|
1140 break;
|
|
|
1141 }
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 file.len -= 4;
|
|
|
1145 file.data[file.len] = '\0';
|
|
|
1146
|
|
|
1147 ctx->include_name = file;
|
|
|
1148
|
|
|
1149 if (ctx->outside_entries) {
|
|
|
1150 ctx->allow_binary_include = 0;
|
|
|
1151 }
|
|
|
1152
|
|
|
1153 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data);
|
|
|
1154
|
|
|
1155 rv = ngx_conf_parse(cf, &file);
|
|
|
1156
|
|
|
1157 ctx->includes++;
|
|
|
1158 ctx->outside_entries = 0;
|
|
|
1159
|
|
|
1160 return rv;
|
|
|
1161 }
|
|
|
1162
|
|
|
1163
|
|
|
1164 static ngx_int_t
|
|
|
1165 ngx_http_geo_include_binary_base(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx,
|
|
|
1166 ngx_str_t *name)
|
|
|
1167 {
|
|
|
1168 u_char *base, ch;
|
|
|
1169 time_t mtime;
|
|
|
1170 size_t size, len;
|
|
|
1171 ssize_t n;
|
|
|
1172 uint32_t crc32;
|
|
|
1173 ngx_err_t err;
|
|
|
1174 ngx_int_t rc;
|
|
|
1175 ngx_uint_t i;
|
|
|
1176 ngx_file_t file;
|
|
|
1177 ngx_file_info_t fi;
|
|
|
1178 ngx_http_geo_range_t *range, **ranges;
|
|
|
1179 ngx_http_geo_header_t *header;
|
|
|
1180 ngx_http_variable_value_t *vv;
|
|
|
1181
|
|
|
1182 ngx_memzero(&file, sizeof(ngx_file_t));
|
|
|
1183 file.name = *name;
|
|
|
1184 file.log = cf->log;
|
|
|
1185
|
|
|
1186 file.fd = ngx_open_file(name->data, NGX_FILE_RDONLY, 0, 0);
|
|
|
1187 if (file.fd == NGX_INVALID_FILE) {
|
|
|
1188 err = ngx_errno;
|
|
|
1189 if (err != NGX_ENOENT) {
|
|
|
1190 ngx_conf_log_error(NGX_LOG_CRIT, cf, err,
|
|
|
1191 ngx_open_file_n " \"%s\" failed", name->data);
|
|
|
1192 }
|
|
|
1193 return NGX_DECLINED;
|
|
|
1194 }
|
|
|
1195
|
|
|
1196 if (ctx->outside_entries) {
|
|
|
1197 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
672
|
1198 "binary geo range base \"%s\" cannot be mixed with usual entries",
|
|
582
|
1199 name->data);
|
|
|
1200 rc = NGX_ERROR;
|
|
|
1201 goto done;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 if (ctx->binary_include) {
|
|
|
1205 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
672
|
1206 "second binary geo range base \"%s\" cannot be mixed with \"%s\"",
|
|
582
|
1207 name->data, ctx->include_name.data);
|
|
|
1208 rc = NGX_ERROR;
|
|
|
1209 goto done;
|
|
|
1210 }
|
|
|
1211
|
|
|
1212 if (ngx_fd_info(file.fd, &fi) == NGX_FILE_ERROR) {
|
|
|
1213 ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
|
|
|
1214 ngx_fd_info_n " \"%s\" failed", name->data);
|
|
|
1215 goto failed;
|
|
|
1216 }
|
|
|
1217
|
|
|
1218 size = (size_t) ngx_file_size(&fi);
|
|
|
1219 mtime = ngx_file_mtime(&fi);
|
|
|
1220
|
|
|
1221 ch = name->data[name->len - 4];
|
|
|
1222 name->data[name->len - 4] = '\0';
|
|
|
1223
|
|
|
1224 if (ngx_file_info(name->data, &fi) == NGX_FILE_ERROR) {
|
|
|
1225 ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
|
|
|
1226 ngx_file_info_n " \"%s\" failed", name->data);
|
|
|
1227 goto failed;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 name->data[name->len - 4] = ch;
|
|
|
1231
|
|
|
1232 if (mtime < ngx_file_mtime(&fi)) {
|
|
|
1233 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1234 "stale binary geo range base \"%s\"", name->data);
|
|
|
1235 goto failed;
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 base = ngx_palloc(ctx->pool, size);
|
|
|
1239 if (base == NULL) {
|
|
|
1240 goto failed;
|
|
|
1241 }
|
|
|
1242
|
|
|
1243 n = ngx_read_file(&file, base, size, 0);
|
|
|
1244
|
|
|
1245 if (n == NGX_ERROR) {
|
|
|
1246 ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
|
|
|
1247 ngx_read_file_n " \"%s\" failed", name->data);
|
|
|
1248 goto failed;
|
|
|
1249 }
|
|
|
1250
|
|
|
1251 if ((size_t) n != size) {
|
|
|
1252 ngx_conf_log_error(NGX_LOG_CRIT, cf, 0,
|
|
|
1253 ngx_read_file_n " \"%s\" returned only %z bytes instead of %z",
|
|
|
1254 name->data, n, size);
|
|
|
1255 goto failed;
|
|
|
1256 }
|
|
|
1257
|
|
|
1258 header = (ngx_http_geo_header_t *) base;
|
|
|
1259
|
|
|
1260 if (size < 16 || ngx_memcmp(&ngx_http_geo_header, header, 12) != 0) {
|
|
|
1261 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1262 "incompatible binary geo range base \"%s\"", name->data);
|
|
|
1263 goto failed;
|
|
|
1264 }
|
|
|
1265
|
|
|
1266 ngx_crc32_init(crc32);
|
|
|
1267
|
|
|
1268 vv = (ngx_http_variable_value_t *) (base + sizeof(ngx_http_geo_header_t));
|
|
|
1269
|
|
|
1270 while(vv->data) {
|
|
|
1271 len = ngx_align(sizeof(ngx_http_variable_value_t) + vv->len,
|
|
|
1272 sizeof(void *));
|
|
|
1273 ngx_crc32_update(&crc32, (u_char *) vv, len);
|
|
|
1274 vv->data += (size_t) base;
|
|
|
1275 vv = (ngx_http_variable_value_t *) ((u_char *) vv + len);
|
|
|
1276 }
|
|
|
1277 ngx_crc32_update(&crc32, (u_char *) vv, sizeof(ngx_http_variable_value_t));
|
|
|
1278 vv++;
|
|
|
1279
|
|
|
1280 ranges = (ngx_http_geo_range_t **) vv;
|
|
|
1281
|
|
|
1282 for (i = 0; i < 0x10000; i++) {
|
|
|
1283 ngx_crc32_update(&crc32, (u_char *) &ranges[i], sizeof(void *));
|
|
|
1284 if (ranges[i]) {
|
|
|
1285 ranges[i] = (ngx_http_geo_range_t *)
|
|
|
1286 ((u_char *) ranges[i] + (size_t) base);
|
|
|
1287 }
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 range = (ngx_http_geo_range_t *) &ranges[0x10000];
|
|
|
1291
|
|
|
1292 while ((u_char *) range < base + size) {
|
|
|
1293 while (range->value) {
|
|
|
1294 ngx_crc32_update(&crc32, (u_char *) range,
|
|
|
1295 sizeof(ngx_http_geo_range_t));
|
|
|
1296 range->value = (ngx_http_variable_value_t *)
|
|
|
1297 ((u_char *) range->value + (size_t) base);
|
|
|
1298 range++;
|
|
|
1299 }
|
|
|
1300 ngx_crc32_update(&crc32, (u_char *) range, sizeof(void *));
|
|
|
1301 range = (ngx_http_geo_range_t *) ((u_char *) range + sizeof(void *));
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 ngx_crc32_final(crc32);
|
|
|
1305
|
|
|
1306 if (crc32 != header->crc32) {
|
|
|
1307 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1308 "CRC32 mismatch in binary geo range base \"%s\"", name->data);
|
|
|
1309 goto failed;
|
|
|
1310 }
|
|
|
1311
|
|
|
1312 ngx_conf_log_error(NGX_LOG_NOTICE, cf, 0,
|
|
|
1313 "using binary geo range base \"%s\"", name->data);
|
|
|
1314
|
|
|
1315 ctx->include_name = *name;
|
|
|
1316 ctx->binary_include = 1;
|
|
|
1317 ctx->high.low = ranges;
|
|
|
1318 rc = NGX_OK;
|
|
|
1319
|
|
|
1320 goto done;
|
|
|
1321
|
|
|
1322 failed:
|
|
|
1323
|
|
|
1324 rc = NGX_DECLINED;
|
|
|
1325
|
|
|
1326 done:
|
|
|
1327
|
|
|
1328 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
|
|
|
1329 ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
|
|
|
1330 ngx_close_file_n " \"%s\" failed", name->data);
|
|
|
1331 }
|
|
|
1332
|
|
|
1333 return rc;
|
|
|
1334 }
|
|
|
1335
|
|
|
1336
|
|
|
1337 static void
|
|
|
1338 ngx_http_geo_create_binary_base(ngx_http_geo_conf_ctx_t *ctx)
|
|
|
1339 {
|
|
|
1340 u_char *p;
|
|
|
1341 uint32_t hash;
|
|
|
1342 ngx_str_t s;
|
|
|
1343 ngx_uint_t i;
|
|
|
1344 ngx_file_mapping_t fm;
|
|
|
1345 ngx_http_geo_range_t *r, *range, **ranges;
|
|
|
1346 ngx_http_geo_header_t *header;
|
|
|
1347 ngx_http_geo_variable_value_node_t *gvvn;
|
|
|
1348
|
|
|
1349 fm.name = ngx_pnalloc(ctx->temp_pool, ctx->include_name.len + 5);
|
|
|
1350 if (fm.name == NULL) {
|
|
|
1351 return;
|
|
|
1352 }
|
|
|
1353
|
|
|
1354 ngx_sprintf(fm.name, "%V.bin%Z", &ctx->include_name);
|
|
|
1355
|
|
|
1356 fm.size = ctx->data_size;
|
|
|
1357 fm.log = ctx->pool->log;
|
|
|
1358
|
|
|
1359 ngx_log_error(NGX_LOG_NOTICE, fm.log, 0,
|
|
|
1360 "creating binary geo range base \"%s\"", fm.name);
|
|
|
1361
|
|
|
1362 if (ngx_create_file_mapping(&fm) != NGX_OK) {
|
|
|
1363 return;
|
|
|
1364 }
|
|
|
1365
|
|
|
1366 p = ngx_cpymem(fm.addr, &ngx_http_geo_header,
|
|
|
1367 sizeof(ngx_http_geo_header_t));
|
|
|
1368
|
|
|
1369 p = ngx_http_geo_copy_values(fm.addr, p, ctx->rbtree.root,
|
|
|
1370 ctx->rbtree.sentinel);
|
|
|
1371
|
|
|
1372 p += sizeof(ngx_http_variable_value_t);
|
|
|
1373
|
|
|
1374 ranges = (ngx_http_geo_range_t **) p;
|
|
|
1375
|
|
|
1376 p += 0x10000 * sizeof(ngx_http_geo_range_t *);
|
|
|
1377
|
|
|
1378 for (i = 0; i < 0x10000; i++) {
|
|
|
1379 r = ctx->high.low[i];
|
|
|
1380 if (r == NULL) {
|
|
|
1381 continue;
|
|
|
1382 }
|
|
|
1383
|
|
|
1384 range = (ngx_http_geo_range_t *) p;
|
|
|
1385 ranges[i] = (ngx_http_geo_range_t *) (p - (u_char *) fm.addr);
|
|
|
1386
|
|
|
1387 do {
|
|
|
1388 s.len = r->value->len;
|
|
|
1389 s.data = r->value->data;
|
|
|
1390 hash = ngx_crc32_long(s.data, s.len);
|
|
|
1391 gvvn = (ngx_http_geo_variable_value_node_t *)
|
|
|
1392 ngx_str_rbtree_lookup(&ctx->rbtree, &s, hash);
|
|
|
1393
|
|
|
1394 range->value = (ngx_http_variable_value_t *) gvvn->offset;
|
|
|
1395 range->start = r->start;
|
|
|
1396 range->end = r->end;
|
|
|
1397 range++;
|
|
|
1398
|
|
|
1399 } while ((++r)->value);
|
|
|
1400
|
|
|
1401 range->value = NULL;
|
|
|
1402
|
|
|
1403 p = (u_char *) range + sizeof(void *);
|
|
|
1404 }
|
|
|
1405
|
|
|
1406 header = fm.addr;
|
|
|
1407 header->crc32 = ngx_crc32_long((u_char *) fm.addr
|
|
|
1408 + sizeof(ngx_http_geo_header_t),
|
|
|
1409 fm.size - sizeof(ngx_http_geo_header_t));
|
|
|
1410
|
|
|
1411 ngx_close_file_mapping(&fm);
|
|
|
1412 }
|
|
|
1413
|
|
|
1414
|
|
|
1415 static u_char *
|
|
|
1416 ngx_http_geo_copy_values(u_char *base, u_char *p, ngx_rbtree_node_t *node,
|
|
|
1417 ngx_rbtree_node_t *sentinel)
|
|
|
1418 {
|
|
|
1419 ngx_http_variable_value_t *vv;
|
|
|
1420 ngx_http_geo_variable_value_node_t *gvvn;
|
|
|
1421
|
|
|
1422 if (node == sentinel) {
|
|
|
1423 return p;
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 gvvn = (ngx_http_geo_variable_value_node_t *) node;
|
|
|
1427 gvvn->offset = p - base;
|
|
|
1428
|
|
|
1429 vv = (ngx_http_variable_value_t *) p;
|
|
|
1430 *vv = *gvvn->value;
|
|
|
1431 p += sizeof(ngx_http_variable_value_t);
|
|
|
1432 vv->data = (u_char *) (p - base);
|
|
|
1433
|
|
|
1434 p = ngx_cpymem(p, gvvn->sn.str.data, gvvn->sn.str.len);
|
|
|
1435
|
|
|
1436 p = ngx_align_ptr(p, sizeof(void *));
|
|
|
1437
|
|
|
1438 p = ngx_http_geo_copy_values(base, p, node->left, sentinel);
|
|
|
1439
|
|
|
1440 return ngx_http_geo_copy_values(base, p, node->right, sentinel);
|
|
|
1441 }
|
