ea3e1fc875
directory and GNU autotools setup. Change-Id: I6c59d1297389c9413db0c0b9bdf3b759080bf1b8 Signed-off-by: Ole Troan <ot@cisco.com>
151 lines
4.2 KiB
C
151 lines
4.2 KiB
C
/*
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*------------------------------------------------------------------
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* cnat_v4_pptp_alg.h
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*
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* Copyright (c) 2009-2013 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*------------------------------------------------------------------
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*/
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#ifndef __CNAT_V4_PPTP_ALG_H__
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#define __CNAT_V4_PPTP_ALG_H__
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/* Debug utils of PPTP */
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#define PPTP_DBG(debug, ...) \
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if(PREDICT_FALSE(cnat_pptp_debug_flag >= debug)) { \
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PLATFORM_DEBUG_PRINT("%s:%s:%d - ", \
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__FILE__, __FUNCTION__, __LINE__);\
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PLATFORM_DEBUG_PRINT(__VA_ARGS__);\
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PLATFORM_DEBUG_PRINT("\n"); \
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}
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#define PPTP_DUMP_PACKET(ip, len) pptp_hex_dump(ip, len)
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#define PPTP_DISABLED 0
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#define PPTP_ENABLED 1
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#define PPTP_GRE_TIMEOUT 60 /*sec */
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#define TCP_PPTP_PORT 1723
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#define PPTP_PAC 0
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#define PPTP_PNS 1
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/* PPTP MSG TYPE */
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#define PPTP_MSG_TYPE_CONTROL 1
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#define PPTP_MSG_TYPE_MGMT 2
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/* PPTP control messages */
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/* control connection mgmt */
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#define PPTP_START_CC_RQ 1
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#define PPTP_START_CC_RP 2
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#define PPTP_STOP_CC_RQ 3
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#define PPTP_STOP_CC_RP 4
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#define PPTP_ECHO_RQ 5
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#define PPTP_ECHO_RP 6
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/* call mgmt */
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#define PPTP_OBOUND_CALL_RQ 7
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#define PPTP_OBOUND_CALL_RP 8
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#define PPTP_IBOUND_CALL_RQ 9
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#define PPTP_IBOUND_CALL_RP 10
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#define PPTP_IBOUND_CALL_CN 11
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#define PPTP_CALL_CLEAR_RQ 12
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#define PPTP_CALL_DISCON_NT 13
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/* other */
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#define PPTP_WAN_ERR_NT 14
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#define PPTP_SET_LINK_INF 15
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#define PPTP_MIN_HDR_LEN 8
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/* Byte offsets from start of TCP Data(PPTP header) */
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#define PPTP_CTRL_MGMT_TYPE_OFFSET 0x02
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#define PPTP_CC_TYPE_OFFSET 0x08
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#define PPTP_HDR_CALL_ID_OFFSET 0x0c
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#define PPTP_HDR_PEER_CALL_ID_OFFSET 0x0e
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#define PPTP_HDR_RESULT_CODE_OFFSET_STCCRP 0x0e
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#define PPTP_HDR_RESULT_CODE_OFFSET 0x10
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/* Offset of control/mgmt msg types
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from start of TCP header */
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#define TCP_HEADER_SIZE(tcp) \
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((tcp->hdr_len>>4) << 2)
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#define PPTP_MSG_START_OFFSET(tcp) \
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((u8*)tcp + TCP_HEADER_SIZE(tcp))
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#define PPTP_CC_MSG_TYPE_OFFSET(tcp) \
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(PPTP_MSG_START_OFFSET(tcp) + \
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PPTP_CC_TYPE_OFFSET )
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#define PPTP_MGMT_MSG_TYPE_OFFSET(tcp) \
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( PPTP_MSG_START_OFFSET(tcp) + \
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PPTP_CTRL_MGMT_TYPE_OFFSET )
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#define PPTP_CALL_ID_OFFSET(tcp) \
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( PPTP_MSG_START_OFFSET(tcp) + \
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PPTP_HDR_CALL_ID_OFFSET )
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#define PPTP_PEER_CALL_ID_OFFSET(tcp) \
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( PPTP_MSG_START_OFFSET(tcp) + \
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PPTP_HDR_PEER_CALL_ID_OFFSET )
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#define PPTP_RESULT_CODE_OFFSET(tcp) \
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( PPTP_MSG_START_OFFSET(tcp) + \
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PPTP_HDR_RESULT_CODE_OFFSET )
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#define PPTP_RESULT_CODE_OFFSET_STCCRP(tcp) \
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( PPTP_MSG_START_OFFSET(tcp) + \
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PPTP_HDR_RESULT_CODE_OFFSET_STCCRP)
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/* values */
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#define PPTP_CC_MSG_TYPE(tcp) \
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(u16*)PPTP_CC_MSG_TYPE_OFFSET(tcp)
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#define PPTP_MGMT_MSG_TYPE(tcp) \
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(u16*)PPTP_MGMT_MSG_TYPE_OFFSET(tcp)
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#define PPTP_CALL_ID(tcp) \
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(u16*)PPTP_CALL_ID_OFFSET(tcp)
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#define PPTP_PEER_CALL_ID(tcp) \
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(u16*)PPTP_PEER_CALL_ID_OFFSET(tcp)
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#define PPTP_RESULT_CODE(tcp) \
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*(u8*)PPTP_RESULT_CODE_OFFSET(tcp);
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#define PPTP_RESULT_CODE_STCCRP(tcp) \
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*(u8*)PPTP_RESULT_CODE_OFFSET_STCCRP(tcp);
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/* other code */
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#define PPTP_CHAN_SUCCESS 1
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/* Data structures */
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extern u32 cnat_pptp_debug_flag;
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#endif /* __CNAT_V4_PPTP_ALG_H__ */
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