Mercurial > hg > nginx
diff src/http/ngx_http_variables.c @ 8072:cca4c8a715de
PROXY protocol v2 TLV variables.
The variables have prefix $proxy_protocol_tlv_ and are accessible by name
and by type. Examples are: $proxy_protocol_tlv_0x01, $proxy_protocol_tlv_alpn.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Wed, 12 Oct 2022 16:58:16 +0400 |
| parents | c263f9ffa1fd |
| children | b71e69247483 |
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--- a/src/http/ngx_http_variables.c +++ b/src/http/ngx_http_variables.c @@ -61,6 +61,8 @@ static ngx_int_t ngx_http_variable_proxy ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_variable_proxy_protocol_port(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_proxy_protocol_tlv(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r, @@ -214,6 +216,10 @@ static ngx_http_variable_t ngx_http_cor ngx_http_variable_proxy_protocol_port, offsetof(ngx_proxy_protocol_t, dst_port), 0, 0 }, + { ngx_string("proxy_protocol_tlv_"), NULL, + ngx_http_variable_proxy_protocol_tlv, + 0, NGX_HTTP_VAR_PREFIX, 0 }, + { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 }, { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 }, @@ -1387,6 +1393,39 @@ ngx_http_variable_proxy_protocol_port(ng static ngx_int_t +ngx_http_variable_proxy_protocol_tlv(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_str_t *name = (ngx_str_t *) data; + + ngx_int_t rc; + ngx_str_t tlv, value; + + tlv.len = name->len - (sizeof("proxy_protocol_tlv_") - 1); + tlv.data = name->data + sizeof("proxy_protocol_tlv_") - 1; + + rc = ngx_proxy_protocol_get_tlv(r->connection, &tlv, &value); + + if (rc == NGX_ERROR) { + return NGX_ERROR; + } + + if (rc == NGX_DECLINED) { + v->not_found = 1; + return NGX_OK; + } + + v->len = value.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = value.data; + + return NGX_OK; +} + + +static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) {