+++ /dev/null
-/*
- *------------------------------------------------------------------
- * cnat_v4_ftp_alg.h
- *
- * Copyright (c) 2012-2013 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#ifndef __CNAT_V4_FTP_ALG_H__
-#define __CNAT_V4_FTP_ALG_H__
-
-
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
-
-#include "tcp_header_definitions.h"
-#include "dslite_defs.h"
-#include "dslite_db.h"
-
-/* shorter form of byte order functions */
-
-#define net2host16(x) clib_net_to_host_u16( x)
-#define net2host32(x) clib_net_to_host_u32( x)
-#define net2host64(x) clib_net_to_host_u64( x)
-#define host2net16(x) clib_host_to_net_u16(x)
-#define host2net32(x) clib_host_to_net_u32(x)
-#define host2net64(x) clib_host_to_net_u64(x)
-
-//#define BIGENDIAN
-
-typedef struct iphdrtype_ {
- u8 v_ihl; /* version and IP header length */
- u8 tos; /* type of service */
- u16 tl; /* total length */
- u16 id; /* identifier */
- u16 ipreserved: 1;
- u16 dontfragment: 1;
- u16 morefragments: 1;
- u16 fo: 13; /* fragment offset */
- u8 ttl; /* time to live */
- u8 prot; /* protocol type */
- u16 checksum; /* checksum */
- u32 srcadr; /* IP source address */
- u32 dstadr; /* IP destination address */
-} iphdrtype;
-
-
-typedef struct tcptype_ {
- u16 sourceport;
- u16 destinationport;
- u32 sequencenumber;
- u32 acknowledgementnumber;
- u8 dataoffset;
- u8 flags;
-#if 0
-/* bypass the ENDIAN part */
-#ifdef BIGENDIAN
- u8 reserved: 2;
- u8 urg: 1;
- u8 ack: 1;
- u8 psh: 1;
- u8 rst: 1;
- u8 syn: 1;
- u8 fin: 1;
-#else
- u8 fin: 1;
- u8 syn: 1;
- u8 rst: 1;
- u8 psh: 1;
- u8 ack: 1;
- u8 urg: 1;
- u8 reserved2: 2;
-#endif
-#endif
-
- u16 window;
- u16 checksum;
- u16 urgentpointer;
- u8 data[0];
-} tcptype ;
-
-
-int watch_ftp_port_cmd (iphdrtype *ip,
- tcptype *tcp,
- u32 * ip_addr,
- u16 * port);
-
-
-u8 * ftp_test_pkt_gen (u32 ip_addr, u16 port);
-
-int update_ftp_port(u8 * pkt, u32 new_ip, u16 new_port, i8 * delta,
- cnat_main_db_entry_t *db_tcp_control,
- dslite_table_entry_t *dslite_entry_ptr,
- ipv6_header_t *ipv6_hdr);
-/*
- * caller needs to check if it's a ftp packet
- * this function returns 1
- * if packet being updated for PORT
- * otherwise return 0.
- * Assume IP header DOES NOT have option fields
- */
-
-int cnat_ftp_alg ( u8* pkt, i8 * delta, cnat_main_db_entry_t *db,
- dslite_table_entry_t *dslite_entry_ptr,
- ipv6_header_t *ipv6_hdr);
-
-#define FTP_ALG_DEBUG_PRINTF_ENABLED 1
-
-#ifdef FTP_ALG_DEBUG_PRINTF_ENABLED
-
-#define FTP_ALG_DEBUG_PRINTF(...) { \
- if (global_debug_flag & CNAT_DEBUG_FTP_ALG) { \
- printf(__VA_ARGS__); \
- } }
-
-#else
-
-#define FTP_ALG_DEBUG_PRINTF(...)
-
-#endif
-
-#endif /* __CNAT_V4_FTP_ALG_H__ */
Code Review / vpp.git / blobdiff