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-rw-r--r--proto.h202
1 files changed, 0 insertions, 202 deletions
diff --git a/proto.h b/proto.h
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index 55f0832..0000000
--- a/proto.h
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * OpenVPN -- An application to securely tunnel IP networks
- * over a single TCP/UDP port, with support for SSL/TLS-based
- * session authentication and key exchange,
- * packet encryption, packet authentication, and
- * packet compression.
- *
- * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (see the file COPYING included with this
- * distribution); if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef PROTO_H
-#define PROTO_H
-
-#include "common.h"
-#include "buffer.h"
-
-#pragma pack(1)
-
-/*
- * Tunnel types
- */
-#define DEV_TYPE_UNDEF 0
-#define DEV_TYPE_NULL 1
-#define DEV_TYPE_TUN 2 /* point-to-point IP tunnel */
-#define DEV_TYPE_TAP 3 /* ethernet (802.3) tunnel */
-
-/* TUN topologies */
-
-#define TOP_UNDEF 0
-#define TOP_NET30 1
-#define TOP_P2P 2
-#define TOP_SUBNET 3
-
-/*
- * IP and Ethernet protocol structs. For portability,
- * OpenVPN needs its own definitions of these structs, and
- * names have been adjusted to avoid collisions with
- * native structs.
- */
-
-#define OPENVPN_ETH_ALEN 6 /* ethernet address length */
-struct openvpn_ethhdr
-{
- uint8_t dest[OPENVPN_ETH_ALEN]; /* destination ethernet addr */
- uint8_t source[OPENVPN_ETH_ALEN]; /* source ethernet addr */
-
-# define OPENVPN_ETH_P_IPV4 0x0800 /* IPv4 protocol */
-# define OPENVPN_ETH_P_IPV6 0x86DD /* IPv6 protocol */
-# define OPENVPN_ETH_P_ARP 0x0806 /* ARP protocol */
- uint16_t proto; /* packet type ID field */
-};
-
-struct openvpn_arp {
-# define ARP_MAC_ADDR_TYPE 0x0001
- uint16_t mac_addr_type; /* 0x0001 */
-
- uint16_t proto_addr_type; /* 0x0800 */
- uint8_t mac_addr_size; /* 0x06 */
- uint8_t proto_addr_size; /* 0x04 */
-
-# define ARP_REQUEST 0x0001
-# define ARP_REPLY 0x0002
- uint16_t arp_command; /* 0x0001 for ARP request, 0x0002 for ARP reply */
-
- uint8_t mac_src[OPENVPN_ETH_ALEN];
- in_addr_t ip_src;
- uint8_t mac_dest[OPENVPN_ETH_ALEN];
- in_addr_t ip_dest;
-};
-
-struct openvpn_iphdr {
-# define OPENVPN_IPH_GET_VER(v) (((v) >> 4) & 0x0F)
-# define OPENVPN_IPH_GET_LEN(v) (((v) & 0x0F) << 2)
- uint8_t version_len;
-
- uint8_t tos;
- uint16_t tot_len;
- uint16_t id;
-
-# define OPENVPN_IP_OFFMASK 0x1fff
- uint16_t frag_off;
-
- uint8_t ttl;
-
-# define OPENVPN_IPPROTO_IGMP 2 /* IGMP protocol */
-# define OPENVPN_IPPROTO_TCP 6 /* TCP protocol */
-# define OPENVPN_IPPROTO_UDP 17 /* UDP protocol */
- uint8_t protocol;
-
- uint16_t check;
- uint32_t saddr;
- uint32_t daddr;
- /*The options start here. */
-};
-
-/*
- * UDP header
- */
-struct openvpn_udphdr {
- uint16_t source;
- uint16_t dest;
- uint16_t len;
- uint16_t check;
-};
-
-/*
- * TCP header, per RFC 793.
- */
-struct openvpn_tcphdr {
- uint16_t source; /* source port */
- uint16_t dest; /* destination port */
- uint32_t seq; /* sequence number */
- uint32_t ack_seq; /* acknowledgement number */
-
-# define OPENVPN_TCPH_GET_DOFF(d) (((d) & 0xF0) >> 2)
- uint8_t doff_res;
-
-# define OPENVPN_TCPH_FIN_MASK (1<<0)
-# define OPENVPN_TCPH_SYN_MASK (1<<1)
-# define OPENVPN_TCPH_RST_MASK (1<<2)
-# define OPENVPN_TCPH_PSH_MASK (1<<3)
-# define OPENVPN_TCPH_ACK_MASK (1<<4)
-# define OPENVPN_TCPH_URG_MASK (1<<5)
-# define OPENVPN_TCPH_ECE_MASK (1<<6)
-# define OPENVPN_TCPH_CWR_MASK (1<<7)
- uint8_t flags;
-
- uint16_t window;
- uint16_t check;
- uint16_t urg_ptr;
-};
-
-#define OPENVPN_TCPOPT_EOL 0
-#define OPENVPN_TCPOPT_NOP 1
-#define OPENVPN_TCPOPT_MAXSEG 2
-#define OPENVPN_TCPOLEN_MAXSEG 4
-
-#pragma pack()
-
-/*
- * The following macro is used to update an
- * internet checksum. "acc" is a 32-bit
- * accumulation of all the changes to the
- * checksum (adding in old 16-bit words and
- * subtracting out new words), and "cksum"
- * is the checksum value to be updated.
- */
-#define ADJUST_CHECKSUM(acc, cksum) { \
- (acc) += (cksum); \
- if ((acc) < 0) { \
- (acc) = -(acc); \
- (acc) = ((acc) >> 16) + ((acc) & 0xffff); \
- (acc) += (acc) >> 16; \
- (cksum) = (uint16_t) ~(acc); \
- } else { \
- (acc) = ((acc) >> 16) + ((acc) & 0xffff); \
- (acc) += (acc) >> 16; \
- (cksum) = (uint16_t) (acc); \
- } \
-}
-
-/*
- * We are in a "liberal" position with respect to MSS,
- * i.e. we assume that MSS can be calculated from MTU
- * by subtracting out only the IP and TCP header sizes
- * without options.
- *
- * (RFC 879, section 7).
- */
-#define MTU_TO_MSS(mtu) (mtu - sizeof(struct openvpn_iphdr) \
- - sizeof(struct openvpn_tcphdr))
-
-/*
- * If raw tunnel packet is IPv4, return true and increment
- * buffer offset to start of IP header.
- */
-bool is_ipv4 (int tunnel_type, struct buffer *buf);
-
-#ifdef PACKET_TRUNCATION_CHECK
-void ipv4_packet_size_verify (const uint8_t *data,
- const int size,
- const int tunnel_type,
- const char
- *prefix,
- counter_type *errors);
-#endif
-
-#endif