Mercurial > hg > nginx
view src/http/modules/ngx_http_geoip_module.c @ 7508:c30a20e06c21
Range filter: fixed duplicate last buffers.
In ngx_http_range_singlepart_body() special buffers where passed
unmodified, including ones after the end of the range. As such,
if the last buffer of a response was sent separately as a special
buffer, two buffers with b->last_buf set were present in the response.
In particular, this might result in a duplicate final chunk when using
chunked transfer encoding (normally range filter and chunked transfer
encoding are not used together, but this may happen if there are trailers
in the response). This also likely to cause problems in HTTP/2.
Fix is to skip all special buffers after we've sent the last part of
the range requested. These special buffers are not meaningful anyway,
since we set b->last_buf in the buffer with the last part of the range,
and everything is expected to be flushed due to it.
Additionally, ngx_http_next_body_filter() is now called even
if no buffers are to be passed to it. This ensures that various
write events are properly propagated through the filter chain. In
particular, this fixes test failures observed with the above change
and aio enabled.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 13 May 2019 22:44:49 +0300 |
parents | 2a288909abc6 |
children | ef6a3a99a81a |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #include <GeoIP.h> #include <GeoIPCity.h> #define NGX_GEOIP_COUNTRY_CODE 0 #define NGX_GEOIP_COUNTRY_CODE3 1 #define NGX_GEOIP_COUNTRY_NAME 2 typedef struct { GeoIP *country; GeoIP *org; GeoIP *city; ngx_array_t *proxies; /* array of ngx_cidr_t */ ngx_flag_t proxy_recursive; #if (NGX_HAVE_GEOIP_V6) unsigned country_v6:1; unsigned org_v6:1; unsigned city_v6:1; #endif } ngx_http_geoip_conf_t; typedef struct { ngx_str_t *name; uintptr_t data; } ngx_http_geoip_var_t; typedef const char *(*ngx_http_geoip_variable_handler_pt)(GeoIP *, u_long addr); ngx_http_geoip_variable_handler_pt ngx_http_geoip_country_functions[] = { GeoIP_country_code_by_ipnum, GeoIP_country_code3_by_ipnum, GeoIP_country_name_by_ipnum, }; #if (NGX_HAVE_GEOIP_V6) typedef const char *(*ngx_http_geoip_variable_handler_v6_pt)(GeoIP *, geoipv6_t addr); ngx_http_geoip_variable_handler_v6_pt ngx_http_geoip_country_v6_functions[] = { GeoIP_country_code_by_ipnum_v6, GeoIP_country_code3_by_ipnum_v6, GeoIP_country_name_by_ipnum_v6, }; #endif static ngx_int_t ngx_http_geoip_country_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_geoip_org_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_geoip_city_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_geoip_region_name_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_geoip_city_float_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_geoip_city_int_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static GeoIPRecord *ngx_http_geoip_get_city_record(ngx_http_request_t *r); static ngx_int_t ngx_http_geoip_add_variables(ngx_conf_t *cf); static void *ngx_http_geoip_create_conf(ngx_conf_t *cf); static char *ngx_http_geoip_init_conf(ngx_conf_t *cf, void *conf); static char *ngx_http_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_geoip_org(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_geoip_proxy(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_int_t ngx_http_geoip_cidr_value(ngx_conf_t *cf, ngx_str_t *net, ngx_cidr_t *cidr); static void ngx_http_geoip_cleanup(void *data); static ngx_command_t ngx_http_geoip_commands[] = { { ngx_string("geoip_country"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE12, ngx_http_geoip_country, NGX_HTTP_MAIN_CONF_OFFSET, 0, NULL }, { ngx_string("geoip_org"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE12, ngx_http_geoip_org, NGX_HTTP_MAIN_CONF_OFFSET, 0, NULL }, { ngx_string("geoip_city"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE12, ngx_http_geoip_city, NGX_HTTP_MAIN_CONF_OFFSET, 0, NULL }, { ngx_string("geoip_proxy"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, ngx_http_geoip_proxy, NGX_HTTP_MAIN_CONF_OFFSET, 0, NULL }, { ngx_string("geoip_proxy_recursive"), NGX_HTTP_MAIN_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_MAIN_CONF_OFFSET, offsetof(ngx_http_geoip_conf_t, proxy_recursive), NULL }, ngx_null_command }; static ngx_http_module_t ngx_http_geoip_module_ctx = { ngx_http_geoip_add_variables, /* preconfiguration */ NULL, /* postconfiguration */ ngx_http_geoip_create_conf, /* create main configuration */ ngx_http_geoip_init_conf, /* init main configuration */ NULL, /* create server configuration */ NULL, /* merge server configuration */ NULL, /* create location configuration */ NULL /* merge location configuration */ }; ngx_module_t ngx_http_geoip_module = { NGX_MODULE_V1, &ngx_http_geoip_module_ctx, /* module context */ ngx_http_geoip_commands, /* module directives */ NGX_HTTP_MODULE, /* module type */ NULL, /* init master */ NULL, /* init module */ NULL, /* init process */ NULL, /* init thread */ NULL, /* exit thread */ NULL, /* exit process */ NULL, /* exit master */ NGX_MODULE_V1_PADDING }; static ngx_http_variable_t ngx_http_geoip_vars[] = { { ngx_string("geoip_country_code"), NULL, ngx_http_geoip_country_variable, NGX_GEOIP_COUNTRY_CODE, 0, 0 }, { ngx_string("geoip_country_code3"), NULL, ngx_http_geoip_country_variable, NGX_GEOIP_COUNTRY_CODE3, 0, 0 }, { ngx_string("geoip_country_name"), NULL, ngx_http_geoip_country_variable, NGX_GEOIP_COUNTRY_NAME, 0, 0 }, { ngx_string("geoip_org"), NULL, ngx_http_geoip_org_variable, 0, 0, 0 }, { ngx_string("geoip_city_continent_code"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, continent_code), 0, 0 }, { ngx_string("geoip_city_country_code"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, country_code), 0, 0 }, { ngx_string("geoip_city_country_code3"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, country_code3), 0, 0 }, { ngx_string("geoip_city_country_name"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, country_name), 0, 0 }, { ngx_string("geoip_region"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, region), 0, 0 }, { ngx_string("geoip_region_name"), NULL, ngx_http_geoip_region_name_variable, 0, 0, 0 }, { ngx_string("geoip_city"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, city), 0, 0 }, { ngx_string("geoip_postal_code"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, postal_code), 0, 0 }, { ngx_string("geoip_latitude"), NULL, ngx_http_geoip_city_float_variable, offsetof(GeoIPRecord, latitude), 0, 0 }, { ngx_string("geoip_longitude"), NULL, ngx_http_geoip_city_float_variable, offsetof(GeoIPRecord, longitude), 0, 0 }, { ngx_string("geoip_dma_code"), NULL, ngx_http_geoip_city_int_variable, offsetof(GeoIPRecord, dma_code), 0, 0 }, { ngx_string("geoip_area_code"), NULL, ngx_http_geoip_city_int_variable, offsetof(GeoIPRecord, area_code), 0, 0 }, ngx_http_null_variable }; static u_long ngx_http_geoip_addr(ngx_http_request_t *r, ngx_http_geoip_conf_t *gcf) { ngx_addr_t addr; ngx_array_t *xfwd; struct sockaddr_in *sin; addr.sockaddr = r->connection->sockaddr; addr.socklen = r->connection->socklen; /* addr.name = r->connection->addr_text; */ xfwd = &r->headers_in.x_forwarded_for; if (xfwd->nelts > 0 && gcf->proxies != NULL) { (void) ngx_http_get_forwarded_addr(r, &addr, xfwd, NULL, gcf->proxies, gcf->proxy_recursive); } #if (NGX_HAVE_INET6) if (addr.sockaddr->sa_family == AF_INET6) { u_char *p; in_addr_t inaddr; struct in6_addr *inaddr6; inaddr6 = &((struct sockaddr_in6 *) addr.sockaddr)->sin6_addr; if (IN6_IS_ADDR_V4MAPPED(inaddr6)) { p = inaddr6->s6_addr; inaddr = p[12] << 24; inaddr += p[13] << 16; inaddr += p[14] << 8; inaddr += p[15]; return inaddr; } } #endif if (addr.sockaddr->sa_family != AF_INET) { return INADDR_NONE; } sin = (struct sockaddr_in *) addr.sockaddr; return ntohl(sin->sin_addr.s_addr); } #if (NGX_HAVE_GEOIP_V6) static geoipv6_t ngx_http_geoip_addr_v6(ngx_http_request_t *r, ngx_http_geoip_conf_t *gcf) { ngx_addr_t addr; ngx_array_t *xfwd; in_addr_t addr4; struct in6_addr addr6; struct sockaddr_in *sin; struct sockaddr_in6 *sin6; addr.sockaddr = r->connection->sockaddr; addr.socklen = r->connection->socklen; /* addr.name = r->connection->addr_text; */ xfwd = &r->headers_in.x_forwarded_for; if (xfwd->nelts > 0 && gcf->proxies != NULL) { (void) ngx_http_get_forwarded_addr(r, &addr, xfwd, NULL, gcf->proxies, gcf->proxy_recursive); } switch (addr.sockaddr->sa_family) { case AF_INET: /* Produce IPv4-mapped IPv6 address. */ sin = (struct sockaddr_in *) addr.sockaddr; addr4 = ntohl(sin->sin_addr.s_addr); ngx_memzero(&addr6, sizeof(struct in6_addr)); addr6.s6_addr[10] = 0xff; addr6.s6_addr[11] = 0xff; addr6.s6_addr[12] = addr4 >> 24; addr6.s6_addr[13] = addr4 >> 16; addr6.s6_addr[14] = addr4 >> 8; addr6.s6_addr[15] = addr4; return addr6; case AF_INET6: sin6 = (struct sockaddr_in6 *) addr.sockaddr; return sin6->sin6_addr; default: return in6addr_any; } } #endif static ngx_int_t ngx_http_geoip_country_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { ngx_http_geoip_variable_handler_pt handler = ngx_http_geoip_country_functions[data]; #if (NGX_HAVE_GEOIP_V6) ngx_http_geoip_variable_handler_v6_pt handler_v6 = ngx_http_geoip_country_v6_functions[data]; #endif const char *val; ngx_http_geoip_conf_t *gcf; gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); if (gcf->country == NULL) { goto not_found; } #if (NGX_HAVE_GEOIP_V6) val = gcf->country_v6 ? handler_v6(gcf->country, ngx_http_geoip_addr_v6(r, gcf)) : handler(gcf->country, ngx_http_geoip_addr(r, gcf)); #else val = handler(gcf->country, ngx_http_geoip_addr(r, gcf)); #endif if (val == NULL) { goto not_found; } v->len = ngx_strlen(val); v->valid = 1; v->no_cacheable = 0; v->not_found = 0; v->data = (u_char *) val; return NGX_OK; not_found: v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_http_geoip_org_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { size_t len; char *val; ngx_http_geoip_conf_t *gcf; gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); if (gcf->org == NULL) { goto not_found; } #if (NGX_HAVE_GEOIP_V6) val = gcf->org_v6 ? GeoIP_name_by_ipnum_v6(gcf->org, ngx_http_geoip_addr_v6(r, gcf)) : GeoIP_name_by_ipnum(gcf->org, ngx_http_geoip_addr(r, gcf)); #else val = GeoIP_name_by_ipnum(gcf->org, ngx_http_geoip_addr(r, gcf)); #endif if (val == NULL) { goto not_found; } len = ngx_strlen(val); v->data = ngx_pnalloc(r->pool, len); if (v->data == NULL) { ngx_free(val); return NGX_ERROR; } ngx_memcpy(v->data, val, len); v->len = len; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; ngx_free(val); return NGX_OK; not_found: v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_http_geoip_city_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { char *val; size_t len; GeoIPRecord *gr; gr = ngx_http_geoip_get_city_record(r); if (gr == NULL) { goto not_found; } val = *(char **) ((char *) gr + data); if (val == NULL) { goto no_value; } len = ngx_strlen(val); v->data = ngx_pnalloc(r->pool, len); if (v->data == NULL) { GeoIPRecord_delete(gr); return NGX_ERROR; } ngx_memcpy(v->data, val, len); v->len = len; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; GeoIPRecord_delete(gr); return NGX_OK; no_value: GeoIPRecord_delete(gr); not_found: v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_http_geoip_region_name_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { size_t len; const char *val; GeoIPRecord *gr; gr = ngx_http_geoip_get_city_record(r); if (gr == NULL) { goto not_found; } val = GeoIP_region_name_by_code(gr->country_code, gr->region); GeoIPRecord_delete(gr); if (val == NULL) { goto not_found; } len = ngx_strlen(val); v->data = ngx_pnalloc(r->pool, len); if (v->data == NULL) { return NGX_ERROR; } ngx_memcpy(v->data, val, len); v->len = len; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; return NGX_OK; not_found: v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_http_geoip_city_float_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { float val; GeoIPRecord *gr; gr = ngx_http_geoip_get_city_record(r); if (gr == NULL) { v->not_found = 1; return NGX_OK; } v->data = ngx_pnalloc(r->pool, NGX_INT64_LEN + 5); if (v->data == NULL) { GeoIPRecord_delete(gr); return NGX_ERROR; } val = *(float *) ((char *) gr + data); v->len = ngx_sprintf(v->data, "%.4f", val) - v->data; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; GeoIPRecord_delete(gr); return NGX_OK; } static ngx_int_t ngx_http_geoip_city_int_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { int val; GeoIPRecord *gr; gr = ngx_http_geoip_get_city_record(r); if (gr == NULL) { v->not_found = 1; return NGX_OK; } v->data = ngx_pnalloc(r->pool, NGX_INT64_LEN); if (v->data == NULL) { GeoIPRecord_delete(gr); return NGX_ERROR; } val = *(int *) ((char *) gr + data); v->len = ngx_sprintf(v->data, "%d", val) - v->data; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; GeoIPRecord_delete(gr); return NGX_OK; } static GeoIPRecord * ngx_http_geoip_get_city_record(ngx_http_request_t *r) { ngx_http_geoip_conf_t *gcf; gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); if (gcf->city) { #if (NGX_HAVE_GEOIP_V6) return gcf->city_v6 ? GeoIP_record_by_ipnum_v6(gcf->city, ngx_http_geoip_addr_v6(r, gcf)) : GeoIP_record_by_ipnum(gcf->city, ngx_http_geoip_addr(r, gcf)); #else return GeoIP_record_by_ipnum(gcf->city, ngx_http_geoip_addr(r, gcf)); #endif } return NULL; } static ngx_int_t ngx_http_geoip_add_variables(ngx_conf_t *cf) { ngx_http_variable_t *var, *v; for (v = ngx_http_geoip_vars; v->name.len; v++) { var = ngx_http_add_variable(cf, &v->name, v->flags); if (var == NULL) { return NGX_ERROR; } var->get_handler = v->get_handler; var->data = v->data; } return NGX_OK; } static void * ngx_http_geoip_create_conf(ngx_conf_t *cf) { ngx_pool_cleanup_t *cln; ngx_http_geoip_conf_t *conf; conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_geoip_conf_t)); if (conf == NULL) { return NULL; } conf->proxy_recursive = NGX_CONF_UNSET; cln = ngx_pool_cleanup_add(cf->pool, 0); if (cln == NULL) { return NULL; } cln->handler = ngx_http_geoip_cleanup; cln->data = conf; return conf; } static char * ngx_http_geoip_init_conf(ngx_conf_t *cf, void *conf) { ngx_http_geoip_conf_t *gcf = conf; ngx_conf_init_value(gcf->proxy_recursive, 0); return NGX_CONF_OK; } static char * ngx_http_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_geoip_conf_t *gcf = conf; ngx_str_t *value; if (gcf->country) { return "is duplicate"; } value = cf->args->elts; gcf->country = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); if (gcf->country == NULL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "GeoIP_open(\"%V\") failed", &value[1]); return NGX_CONF_ERROR; } if (cf->args->nelts == 3) { if (ngx_strcmp(value[2].data, "utf8") == 0) { GeoIP_set_charset(gcf->country, GEOIP_CHARSET_UTF8); } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"", &value[2]); return NGX_CONF_ERROR; } } switch (gcf->country->databaseType) { case GEOIP_COUNTRY_EDITION: return NGX_CONF_OK; #if (NGX_HAVE_GEOIP_V6) case GEOIP_COUNTRY_EDITION_V6: gcf->country_v6 = 1; return NGX_CONF_OK; #endif default: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid GeoIP database \"%V\" type:%d", &value[1], gcf->country->databaseType); return NGX_CONF_ERROR; } } static char * ngx_http_geoip_org(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_geoip_conf_t *gcf = conf; ngx_str_t *value; if (gcf->org) { return "is duplicate"; } value = cf->args->elts; gcf->org = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); if (gcf->org == NULL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "GeoIP_open(\"%V\") failed", &value[1]); return NGX_CONF_ERROR; } if (cf->args->nelts == 3) { if (ngx_strcmp(value[2].data, "utf8") == 0) { GeoIP_set_charset(gcf->org, GEOIP_CHARSET_UTF8); } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"", &value[2]); return NGX_CONF_ERROR; } } switch (gcf->org->databaseType) { case GEOIP_ISP_EDITION: case GEOIP_ORG_EDITION: case GEOIP_DOMAIN_EDITION: case GEOIP_ASNUM_EDITION: return NGX_CONF_OK; #if (NGX_HAVE_GEOIP_V6) case GEOIP_ISP_EDITION_V6: case GEOIP_ORG_EDITION_V6: case GEOIP_DOMAIN_EDITION_V6: case GEOIP_ASNUM_EDITION_V6: gcf->org_v6 = 1; return NGX_CONF_OK; #endif default: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid GeoIP database \"%V\" type:%d", &value[1], gcf->org->databaseType); return NGX_CONF_ERROR; } } static char * ngx_http_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_geoip_conf_t *gcf = conf; ngx_str_t *value; if (gcf->city) { return "is duplicate"; } value = cf->args->elts; gcf->city = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); if (gcf->city == NULL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "GeoIP_open(\"%V\") failed", &value[1]); return NGX_CONF_ERROR; } if (cf->args->nelts == 3) { if (ngx_strcmp(value[2].data, "utf8") == 0) { GeoIP_set_charset(gcf->city, GEOIP_CHARSET_UTF8); } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"", &value[2]); return NGX_CONF_ERROR; } } switch (gcf->city->databaseType) { case GEOIP_CITY_EDITION_REV0: case GEOIP_CITY_EDITION_REV1: return NGX_CONF_OK; #if (NGX_HAVE_GEOIP_V6) case GEOIP_CITY_EDITION_REV0_V6: case GEOIP_CITY_EDITION_REV1_V6: gcf->city_v6 = 1; return NGX_CONF_OK; #endif default: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid GeoIP City database \"%V\" type:%d", &value[1], gcf->city->databaseType); return NGX_CONF_ERROR; } } static char * ngx_http_geoip_proxy(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_geoip_conf_t *gcf = conf; ngx_str_t *value; ngx_cidr_t cidr, *c; value = cf->args->elts; if (ngx_http_geoip_cidr_value(cf, &value[1], &cidr) != NGX_OK) { return NGX_CONF_ERROR; } if (gcf->proxies == NULL) { gcf->proxies = ngx_array_create(cf->pool, 4, sizeof(ngx_cidr_t)); if (gcf->proxies == NULL) { return NGX_CONF_ERROR; } } c = ngx_array_push(gcf->proxies); if (c == NULL) { return NGX_CONF_ERROR; } *c = cidr; return NGX_CONF_OK; } static ngx_int_t ngx_http_geoip_cidr_value(ngx_conf_t *cf, ngx_str_t *net, ngx_cidr_t *cidr) { ngx_int_t rc; if (ngx_strcmp(net->data, "255.255.255.255") == 0) { cidr->family = AF_INET; cidr->u.in.addr = 0xffffffff; cidr->u.in.mask = 0xffffffff; return NGX_OK; } rc = ngx_ptocidr(net, cidr); if (rc == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid network \"%V\"", net); return NGX_ERROR; } if (rc == NGX_DONE) { ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "low address bits of %V are meaningless", net); } return NGX_OK; } static void ngx_http_geoip_cleanup(void *data) { ngx_http_geoip_conf_t *gcf = data; if (gcf->country) { GeoIP_delete(gcf->country); } if (gcf->org) { GeoIP_delete(gcf->org); } if (gcf->city) { GeoIP_delete(gcf->city); } }