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Diffstat (limited to 'include/haproxy/http_ext-t.h')
| -rw-r--r-- | include/haproxy/http_ext-t.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/include/haproxy/http_ext-t.h b/include/haproxy/http_ext-t.h new file mode 100644 index 0000000..68eb047 --- /dev/null +++ b/include/haproxy/http_ext-t.h @@ -0,0 +1,149 @@ +/* + * include/haproxy/http_ext-t.h + * Version-agnostic and implementation-agnostic HTTP extensions definitions + * + * Copyright 2022 HAProxy Technologies + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation, version 2.1 + * exclusively. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _HAPROXY_HTTPEXT_T_H +#define _HAPROXY_HTTPEXT_T_H + +#include <arpa/inet.h> +#include <import/ist.h> +#include <haproxy/tools-t.h> + +enum forwarded_header_attribute_type { + FORWARDED_HEADER_UNK = 0, + FORWARDED_HEADER_OBFS = 1, + FORWARDED_HEADER_PORT = 2, + FORWARDED_HEADER_IP = 3, +}; + +struct forwarded_header_nodename { + union { + struct sockaddr_storage ip; + struct ist obfs; + }; + enum forwarded_header_attribute_type type; +}; + +struct forwarded_header_nodeport { + union { + uint16_t port; + struct ist obfs; + }; + enum forwarded_header_attribute_type type; +}; + +struct forwarded_header_node { + struct forwarded_header_nodename nodename; + struct forwarded_header_nodeport nodeport; + struct ist raw; +}; + +enum forwarded_header_proto { + FORWARDED_HEADER_HTTP = 1, + FORWARDED_HEADER_HTTPS = 2 +}; + +struct forwarded_header_ctx { + struct forwarded_header_node nfor; + struct forwarded_header_node nby; + struct ist host; + enum forwarded_header_proto proto; +}; + +enum http_ext_7239_forby_mode { + HTTP_7239_FORBY_ORIG = 1, + HTTP_7239_FORBY_SMP = 2 +}; +struct http_ext_7239_forby { + /* nn = nodename, np = nodeport */ + union { + char *nn_expr_s; + struct sample_expr *nn_expr; + }; + union { + char *np_expr_s; + struct sample_expr *np_expr; + }; + enum http_ext_7239_forby_mode nn_mode; + enum http_ext_7239_forby_mode np_mode; +}; + +enum http_ext_7239_host_mode { + HTTP_7239_HOST_ORIG = 1, + HTTP_7239_HOST_SMP = 2 +}; +struct http_ext_7239_host { + union { + char *expr_s; + struct sample_expr *expr; + }; + enum http_ext_7239_host_mode mode; +}; + +struct http_ext_7239 { + /* forwarded header parameters options */ + struct http_ext_7239_forby p_for; + struct http_ext_7239_forby p_by; + struct http_ext_7239_host p_host; + uint8_t p_proto; + /* config error hints, used only during configuration parsing */ + char *c_file; + int c_line; + int c_mode; /* 0: parsed, 1: compiled */ +}; + +enum forwarded_header_field { + FORWARDED_HEADER_FOR = 0x01, + FORWARDED_HEADER_BY = 0x02, + FORWARDED_HEADER_HOST = 0x04, + FORWARDED_HEADER_PROTO = 0x08, + FORWARDED_HEADER_ALL = FORWARDED_HEADER_FOR|FORWARDED_HEADER_BY|FORWARDED_HEADER_HOST|FORWARDED_HEADER_PROTO +}; + +enum http_ext_xff_mode { + HTTP_XFF_IFNONE = 0, /* set if not already set */ + HTTP_XFF_ALWAYS = 1 /* always set x-forwarded-for */ +}; +struct http_ext_xff { + struct ist hdr_name; /* header to use - default: "x-forwarded-for" */ + struct net_addr except_net; /* don't forward x-forward-for for this address. */ + uint8_t mode; +}; + +struct http_ext_xot { + struct ist hdr_name; /* header to use - default: "x-original-to" */ + struct net_addr except_net; /* don't forward x-original-to for this address. */ +}; + +/* http_ext options */ +struct http_ext { + /* forwarded header (RFC 7239) */ + struct http_ext_7239 *fwd; + /* x-forward-for: + * conditionally insert x-forwarded-for with client address + */ + struct http_ext_xff *xff; + /* x-original-to: + * insert x-original-to with destination address + */ + struct http_ext_xot *xot; +}; + +#endif /* !_HAPROXY_HTTPEXT_T_H */ |