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1061 lines
23 KiB
C
1061 lines
23 KiB
C
/*
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* Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* PPTP support contributed by Motonori Shindo (mshindo@mshindo.net)
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*/
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#ifndef lint
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static const char rcsid[] _U_ =
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"@(#) $Header: /tcpdump/master/tcpdump/print-pptp.c,v 1.12 2006-06-23 02:03:09 hannes Exp $";
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <tcpdump-stdinc.h>
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#include <stdio.h>
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#include "interface.h"
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#include "extract.h"
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static char tstr[] = " [|pptp]";
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#define PPTP_MSG_TYPE_CTRL 1 /* Control Message */
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#define PPTP_MSG_TYPE_MGMT 2 /* Management Message (currently not used */
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#define PPTP_MAGIC_COOKIE 0x1a2b3c4d /* for sanity check */
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#define PPTP_CTRL_MSG_TYPE_SCCRQ 1
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#define PPTP_CTRL_MSG_TYPE_SCCRP 2
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#define PPTP_CTRL_MSG_TYPE_StopCCRQ 3
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#define PPTP_CTRL_MSG_TYPE_StopCCRP 4
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#define PPTP_CTRL_MSG_TYPE_ECHORQ 5
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#define PPTP_CTRL_MSG_TYPE_ECHORP 6
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#define PPTP_CTRL_MSG_TYPE_OCRQ 7
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#define PPTP_CTRL_MSG_TYPE_OCRP 8
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#define PPTP_CTRL_MSG_TYPE_ICRQ 9
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#define PPTP_CTRL_MSG_TYPE_ICRP 10
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#define PPTP_CTRL_MSG_TYPE_ICCN 11
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#define PPTP_CTRL_MSG_TYPE_CCRQ 12
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#define PPTP_CTRL_MSG_TYPE_CDN 13
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#define PPTP_CTRL_MSG_TYPE_WEN 14
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#define PPTP_CTRL_MSG_TYPE_SLI 15
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#define PPTP_FRAMING_CAP_ASYNC_MASK 0x00000001 /* Aynchronous */
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#define PPTP_FRAMING_CAP_SYNC_MASK 0x00000002 /* Synchronous */
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#define PPTP_BEARER_CAP_ANALOG_MASK 0x00000001 /* Analog */
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#define PPTP_BEARER_CAP_DIGITAL_MASK 0x00000002 /* Digital */
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static const char *pptp_message_type_string[] = {
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"NOT_DEFINED", /* 0 Not defined in the RFC2637 */
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"SCCRQ", /* 1 Start-Control-Connection-Request */
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"SCCRP", /* 2 Start-Control-Connection-Reply */
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"StopCCRQ", /* 3 Stop-Control-Connection-Request */
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"StopCCRP", /* 4 Stop-Control-Connection-Reply */
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"ECHORQ", /* 5 Echo Request */
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"ECHORP", /* 6 Echo Reply */
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"OCRQ", /* 7 Outgoing-Call-Request */
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"OCRP", /* 8 Outgoing-Call-Reply */
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"ICRQ", /* 9 Incoming-Call-Request */
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"ICRP", /* 10 Incoming-Call-Reply */
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"ICCN", /* 11 Incoming-Call-Connected */
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"CCRQ", /* 12 Call-Clear-Request */
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"CDN", /* 13 Call-Disconnect-Notify */
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"WEN", /* 14 WAN-Error-Notify */
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"SLI" /* 15 Set-Link-Info */
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#define PPTP_MAX_MSGTYPE_INDEX 16
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};
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/* common for all PPTP control messages */
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struct pptp_hdr {
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u_int16_t length;
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u_int16_t msg_type;
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u_int32_t magic_cookie;
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u_int16_t ctrl_msg_type;
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u_int16_t reserved0;
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};
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struct pptp_msg_sccrq {
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u_int16_t proto_ver;
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u_int16_t reserved1;
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u_int32_t framing_cap;
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u_int32_t bearer_cap;
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u_int16_t max_channel;
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u_int16_t firm_rev;
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u_char hostname[64];
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u_char vendor[64];
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};
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struct pptp_msg_sccrp {
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u_int16_t proto_ver;
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u_int8_t result_code;
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u_int8_t err_code;
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u_int32_t framing_cap;
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u_int32_t bearer_cap;
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u_int16_t max_channel;
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u_int16_t firm_rev;
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u_char hostname[64];
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u_char vendor[64];
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};
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struct pptp_msg_stopccrq {
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u_int8_t reason;
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u_int8_t reserved1;
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u_int16_t reserved2;
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};
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struct pptp_msg_stopccrp {
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u_int8_t result_code;
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u_int8_t err_code;
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u_int16_t reserved1;
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};
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struct pptp_msg_echorq {
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u_int32_t id;
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};
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struct pptp_msg_echorp {
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u_int32_t id;
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u_int8_t result_code;
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u_int8_t err_code;
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u_int16_t reserved1;
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};
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struct pptp_msg_ocrq {
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u_int16_t call_id;
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u_int16_t call_ser;
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u_int32_t min_bps;
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u_int32_t max_bps;
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u_int32_t bearer_type;
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u_int32_t framing_type;
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u_int16_t recv_winsiz;
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u_int16_t pkt_proc_delay;
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u_int16_t phone_no_len;
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u_int16_t reserved1;
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u_char phone_no[64];
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u_char subaddr[64];
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};
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struct pptp_msg_ocrp {
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u_int16_t call_id;
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u_int16_t peer_call_id;
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u_int8_t result_code;
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u_int8_t err_code;
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u_int16_t cause_code;
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u_int32_t conn_speed;
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u_int16_t recv_winsiz;
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u_int16_t pkt_proc_delay;
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u_int32_t phy_chan_id;
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};
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struct pptp_msg_icrq {
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u_int16_t call_id;
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u_int16_t call_ser;
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u_int32_t bearer_type;
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u_int32_t phy_chan_id;
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u_int16_t dialed_no_len;
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u_int16_t dialing_no_len;
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u_char dialed_no[64]; /* DNIS */
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u_char dialing_no[64]; /* CLID */
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u_char subaddr[64];
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};
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struct pptp_msg_icrp {
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u_int16_t call_id;
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u_int16_t peer_call_id;
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u_int8_t result_code;
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u_int8_t err_code;
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u_int16_t recv_winsiz;
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u_int16_t pkt_proc_delay;
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u_int16_t reserved1;
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};
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struct pptp_msg_iccn {
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u_int16_t peer_call_id;
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u_int16_t reserved1;
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u_int32_t conn_speed;
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u_int16_t recv_winsiz;
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u_int16_t pkt_proc_delay;
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u_int32_t framing_type;
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};
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struct pptp_msg_ccrq {
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u_int16_t call_id;
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u_int16_t reserved1;
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};
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struct pptp_msg_cdn {
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u_int16_t call_id;
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u_int8_t result_code;
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u_int8_t err_code;
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u_int16_t cause_code;
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u_int16_t reserved1;
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u_char call_stats[128];
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};
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struct pptp_msg_wen {
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u_int16_t peer_call_id;
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u_int16_t reserved1;
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u_int32_t crc_err;
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u_int32_t framing_err;
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u_int32_t hardware_overrun;
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u_int32_t buffer_overrun;
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u_int32_t timeout_err;
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u_int32_t align_err;
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};
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struct pptp_msg_sli {
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u_int16_t peer_call_id;
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u_int16_t reserved1;
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u_int32_t send_accm;
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u_int32_t recv_accm;
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};
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/* attributes that appear more than once in above messages:
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Number of
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occurence attributes
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--------------------------------------
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2 u_int32_t bearer_cap;
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2 u_int32_t bearer_type;
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6 u_int16_t call_id;
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2 u_int16_t call_ser;
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2 u_int16_t cause_code;
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2 u_int32_t conn_speed;
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6 u_int8_t err_code;
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2 u_int16_t firm_rev;
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2 u_int32_t framing_cap;
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2 u_int32_t framing_type;
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2 u_char hostname[64];
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2 u_int32_t id;
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2 u_int16_t max_channel;
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5 u_int16_t peer_call_id;
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2 u_int32_t phy_chan_id;
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4 u_int16_t pkt_proc_delay;
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2 u_int16_t proto_ver;
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4 u_int16_t recv_winsiz;
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2 u_int8_t reserved1;
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9 u_int16_t reserved1;
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6 u_int8_t result_code;
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2 u_char subaddr[64];
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2 u_char vendor[64];
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so I will prepare print out functions for these attributes (except for
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reserved*).
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*/
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/******************************************/
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/* Attribute-specific print out functions */
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/******************************************/
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/* In these attribute-specific print-out functions, it't not necessary
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to do TCHECK because they are already checked in the caller of
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these functions. */
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static void
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pptp_bearer_cap_print(const u_int32_t *bearer_cap)
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{
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printf(" BEARER_CAP(");
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if (EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_DIGITAL_MASK) {
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printf("D");
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}
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if (EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_ANALOG_MASK) {
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printf("A");
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}
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printf(")");
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}
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static void
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pptp_bearer_type_print(const u_int32_t *bearer_type)
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{
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printf(" BEARER_TYPE(");
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switch (EXTRACT_32BITS(bearer_type)) {
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case 1:
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printf("A"); /* Analog */
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break;
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case 2:
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printf("D"); /* Digital */
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break;
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case 3:
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printf("Any");
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break;
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default:
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printf("?");
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break;
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}
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printf(")");
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}
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static void
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pptp_call_id_print(const u_int16_t *call_id)
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{
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printf(" CALL_ID(%u)", EXTRACT_16BITS(call_id));
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}
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static void
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pptp_call_ser_print(const u_int16_t *call_ser)
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{
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printf(" CALL_SER_NUM(%u)", EXTRACT_16BITS(call_ser));
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}
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static void
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pptp_cause_code_print(const u_int16_t *cause_code)
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{
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printf(" CAUSE_CODE(%u)", EXTRACT_16BITS(cause_code));
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}
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static void
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pptp_conn_speed_print(const u_int32_t *conn_speed)
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{
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printf(" CONN_SPEED(%u)", EXTRACT_32BITS(conn_speed));
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}
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static void
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pptp_err_code_print(const u_int8_t *err_code)
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{
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printf(" ERR_CODE(%u", *err_code);
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if (vflag) {
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switch (*err_code) {
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case 0:
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printf(":None");
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break;
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case 1:
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printf(":Not-Connected");
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break;
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case 2:
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printf(":Bad-Format");
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break;
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case 3:
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printf(":Bad-Valude");
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break;
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case 4:
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printf(":No-Resource");
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break;
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case 5:
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printf(":Bad-Call-ID");
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break;
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case 6:
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printf(":PAC-Error");
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break;
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default:
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printf(":?");
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break;
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}
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}
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printf(")");
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}
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static void
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pptp_firm_rev_print(const u_int16_t *firm_rev)
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{
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printf(" FIRM_REV(%u)", EXTRACT_16BITS(firm_rev));
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}
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static void
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pptp_framing_cap_print(const u_int32_t *framing_cap)
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{
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printf(" FRAME_CAP(");
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if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_ASYNC_MASK) {
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printf("A"); /* Async */
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}
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if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_SYNC_MASK) {
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printf("S"); /* Sync */
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}
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printf(")");
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}
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static void
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pptp_framing_type_print(const u_int32_t *framing_type)
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{
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printf(" FRAME_TYPE(");
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switch (EXTRACT_32BITS(framing_type)) {
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case 1:
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printf("A"); /* Async */
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break;
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case 2:
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printf("S"); /* Sync */
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break;
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case 3:
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printf("E"); /* Either */
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break;
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default:
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printf("?");
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break;
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}
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printf(")");
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}
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static void
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pptp_hostname_print(const u_char *hostname)
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{
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printf(" HOSTNAME(%.64s)", hostname);
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}
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static void
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pptp_id_print(const u_int32_t *id)
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{
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printf(" ID(%u)", EXTRACT_32BITS(id));
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}
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static void
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pptp_max_channel_print(const u_int16_t *max_channel)
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{
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printf(" MAX_CHAN(%u)", EXTRACT_16BITS(max_channel));
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}
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static void
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pptp_peer_call_id_print(const u_int16_t *peer_call_id)
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{
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printf(" PEER_CALL_ID(%u)", EXTRACT_16BITS(peer_call_id));
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}
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static void
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pptp_phy_chan_id_print(const u_int32_t *phy_chan_id)
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{
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printf(" PHY_CHAN_ID(%u)", EXTRACT_32BITS(phy_chan_id));
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}
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static void
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pptp_pkt_proc_delay_print(const u_int16_t *pkt_proc_delay)
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{
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printf(" PROC_DELAY(%u)", EXTRACT_16BITS(pkt_proc_delay));
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}
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static void
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pptp_proto_ver_print(const u_int16_t *proto_ver)
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{
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printf(" PROTO_VER(%u.%u)", /* Version.Revision */
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EXTRACT_16BITS(proto_ver) >> 8,
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EXTRACT_16BITS(proto_ver) & 0xff);
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}
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static void
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pptp_recv_winsiz_print(const u_int16_t *recv_winsiz)
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{
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printf(" RECV_WIN(%u)", EXTRACT_16BITS(recv_winsiz));
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}
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static void
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pptp_result_code_print(const u_int8_t *result_code, int ctrl_msg_type)
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{
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printf(" RESULT_CODE(%u", *result_code);
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if (vflag) {
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switch (ctrl_msg_type) {
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case PPTP_CTRL_MSG_TYPE_SCCRP:
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switch (*result_code) {
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case 1:
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printf(":Successful channel establishment");
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break;
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case 2:
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printf(":General error");
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break;
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case 3:
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printf(":Command channel already exists");
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break;
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case 4:
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printf(":Requester is not authorized to establish a command channel");
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break;
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case 5:
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printf(":The protocol version of the requester is not supported");
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break;
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default:
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printf(":?");
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break;
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}
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break;
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case PPTP_CTRL_MSG_TYPE_StopCCRP:
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case PPTP_CTRL_MSG_TYPE_ECHORP:
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switch (*result_code) {
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case 1:
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printf(":OK");
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break;
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case 2:
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printf(":General Error");
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break;
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default:
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printf(":?");
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break;
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}
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break;
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case PPTP_CTRL_MSG_TYPE_OCRP:
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switch (*result_code) {
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case 1:
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printf(":Connected");
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break;
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case 2:
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printf(":General Error");
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break;
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case 3:
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printf(":No Carrier");
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break;
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case 4:
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printf(":Busy");
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break;
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case 5:
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printf(":No Dial Tone");
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break;
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case 6:
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printf(":Time-out");
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break;
|
|
case 7:
|
|
printf(":Do Not Accept");
|
|
break;
|
|
default:
|
|
printf(":?");
|
|
break;
|
|
}
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_ICRP:
|
|
switch (*result_code) {
|
|
case 1:
|
|
printf(":Connect");
|
|
break;
|
|
case 2:
|
|
printf(":General Error");
|
|
break;
|
|
case 3:
|
|
printf(":Do Not Accept");
|
|
break;
|
|
default:
|
|
printf(":?");
|
|
break;
|
|
}
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_CDN:
|
|
switch (*result_code) {
|
|
case 1:
|
|
printf(":Lost Carrier");
|
|
break;
|
|
case 2:
|
|
printf(":General Error");
|
|
break;
|
|
case 3:
|
|
printf(":Admin Shutdown");
|
|
break;
|
|
case 4:
|
|
printf(":Request");
|
|
default:
|
|
printf(":?");
|
|
break;
|
|
break;
|
|
}
|
|
default:
|
|
/* assertion error */
|
|
break;
|
|
}
|
|
}
|
|
printf(")");
|
|
}
|
|
|
|
static void
|
|
pptp_subaddr_print(const u_char *subaddr)
|
|
{
|
|
printf(" SUB_ADDR(%.64s)", subaddr);
|
|
}
|
|
|
|
static void
|
|
pptp_vendor_print(const u_char *vendor)
|
|
{
|
|
printf(" VENDOR(%.64s)", vendor);
|
|
}
|
|
|
|
/************************************/
|
|
/* PPTP message print out functions */
|
|
/************************************/
|
|
static void
|
|
pptp_sccrq_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_sccrq *ptr = (struct pptp_msg_sccrq *)dat;
|
|
|
|
TCHECK(ptr->proto_ver);
|
|
pptp_proto_ver_print(&ptr->proto_ver);
|
|
TCHECK(ptr->reserved1);
|
|
TCHECK(ptr->framing_cap);
|
|
pptp_framing_cap_print(&ptr->framing_cap);
|
|
TCHECK(ptr->bearer_cap);
|
|
pptp_bearer_cap_print(&ptr->bearer_cap);
|
|
TCHECK(ptr->max_channel);
|
|
pptp_max_channel_print(&ptr->max_channel);
|
|
TCHECK(ptr->firm_rev);
|
|
pptp_firm_rev_print(&ptr->firm_rev);
|
|
TCHECK(ptr->hostname);
|
|
pptp_hostname_print(&ptr->hostname[0]);
|
|
TCHECK(ptr->vendor);
|
|
pptp_vendor_print(&ptr->vendor[0]);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_sccrp_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_sccrp *ptr = (struct pptp_msg_sccrp *)dat;
|
|
|
|
TCHECK(ptr->proto_ver);
|
|
pptp_proto_ver_print(&ptr->proto_ver);
|
|
TCHECK(ptr->result_code);
|
|
pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_SCCRP);
|
|
TCHECK(ptr->err_code);
|
|
pptp_err_code_print(&ptr->err_code);
|
|
TCHECK(ptr->framing_cap);
|
|
pptp_framing_cap_print(&ptr->framing_cap);
|
|
TCHECK(ptr->bearer_cap);
|
|
pptp_bearer_cap_print(&ptr->bearer_cap);
|
|
TCHECK(ptr->max_channel);
|
|
pptp_max_channel_print(&ptr->max_channel);
|
|
TCHECK(ptr->firm_rev);
|
|
pptp_firm_rev_print(&ptr->firm_rev);
|
|
TCHECK(ptr->hostname);
|
|
pptp_hostname_print(&ptr->hostname[0]);
|
|
TCHECK(ptr->vendor);
|
|
pptp_vendor_print(&ptr->vendor[0]);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_stopccrq_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_stopccrq *ptr = (struct pptp_msg_stopccrq *)dat;
|
|
|
|
TCHECK(ptr->reason);
|
|
printf(" REASON(%u", ptr->reason);
|
|
if (vflag) {
|
|
switch (ptr->reason) {
|
|
case 1:
|
|
printf(":None");
|
|
break;
|
|
case 2:
|
|
printf(":Stop-Protocol");
|
|
break;
|
|
case 3:
|
|
printf(":Stop-Local-Shutdown");
|
|
break;
|
|
default:
|
|
printf(":?");
|
|
break;
|
|
}
|
|
}
|
|
printf(")");
|
|
TCHECK(ptr->reserved1);
|
|
TCHECK(ptr->reserved2);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_stopccrp_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_stopccrp *ptr = (struct pptp_msg_stopccrp *)dat;
|
|
|
|
TCHECK(ptr->result_code);
|
|
pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_StopCCRP);
|
|
TCHECK(ptr->err_code);
|
|
pptp_err_code_print(&ptr->err_code);
|
|
TCHECK(ptr->reserved1);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_echorq_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_echorq *ptr = (struct pptp_msg_echorq *)dat;
|
|
|
|
TCHECK(ptr->id);
|
|
pptp_id_print(&ptr->id);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_echorp_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_echorp *ptr = (struct pptp_msg_echorp *)dat;
|
|
|
|
TCHECK(ptr->id);
|
|
pptp_id_print(&ptr->id);
|
|
TCHECK(ptr->result_code);
|
|
pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_ECHORP);
|
|
TCHECK(ptr->err_code);
|
|
pptp_err_code_print(&ptr->err_code);
|
|
TCHECK(ptr->reserved1);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_ocrq_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_ocrq *ptr = (struct pptp_msg_ocrq *)dat;
|
|
|
|
TCHECK(ptr->call_id);
|
|
pptp_call_id_print(&ptr->call_id);
|
|
TCHECK(ptr->call_ser);
|
|
pptp_call_ser_print(&ptr->call_ser);
|
|
TCHECK(ptr->min_bps);
|
|
printf(" MIN_BPS(%u)", EXTRACT_32BITS(&ptr->min_bps));
|
|
TCHECK(ptr->max_bps);
|
|
printf(" MAX_BPS(%u)", EXTRACT_32BITS(&ptr->max_bps));
|
|
TCHECK(ptr->bearer_type);
|
|
pptp_bearer_type_print(&ptr->bearer_type);
|
|
TCHECK(ptr->framing_type);
|
|
pptp_framing_type_print(&ptr->framing_type);
|
|
TCHECK(ptr->recv_winsiz);
|
|
pptp_recv_winsiz_print(&ptr->recv_winsiz);
|
|
TCHECK(ptr->pkt_proc_delay);
|
|
pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
|
|
TCHECK(ptr->phone_no_len);
|
|
printf(" PHONE_NO_LEN(%u)", EXTRACT_16BITS(&ptr->phone_no_len));
|
|
TCHECK(ptr->reserved1);
|
|
TCHECK(ptr->phone_no);
|
|
printf(" PHONE_NO(%.64s)", ptr->phone_no);
|
|
TCHECK(ptr->subaddr);
|
|
pptp_subaddr_print(&ptr->subaddr[0]);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_ocrp_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_ocrp *ptr = (struct pptp_msg_ocrp *)dat;
|
|
|
|
TCHECK(ptr->call_id);
|
|
pptp_call_id_print(&ptr->call_id);
|
|
TCHECK(ptr->peer_call_id);
|
|
pptp_peer_call_id_print(&ptr->peer_call_id);
|
|
TCHECK(ptr->result_code);
|
|
pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_OCRP);
|
|
TCHECK(ptr->err_code);
|
|
pptp_err_code_print(&ptr->err_code);
|
|
TCHECK(ptr->cause_code);
|
|
pptp_cause_code_print(&ptr->cause_code);
|
|
TCHECK(ptr->conn_speed);
|
|
pptp_conn_speed_print(&ptr->conn_speed);
|
|
TCHECK(ptr->recv_winsiz);
|
|
pptp_recv_winsiz_print(&ptr->recv_winsiz);
|
|
TCHECK(ptr->pkt_proc_delay);
|
|
pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
|
|
TCHECK(ptr->phy_chan_id);
|
|
pptp_phy_chan_id_print(&ptr->phy_chan_id);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_icrq_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_icrq *ptr = (struct pptp_msg_icrq *)dat;
|
|
|
|
TCHECK(ptr->call_id);
|
|
pptp_call_id_print(&ptr->call_id);
|
|
TCHECK(ptr->call_ser);
|
|
pptp_call_ser_print(&ptr->call_ser);
|
|
TCHECK(ptr->bearer_type);
|
|
pptp_bearer_type_print(&ptr->bearer_type);
|
|
TCHECK(ptr->phy_chan_id);
|
|
pptp_phy_chan_id_print(&ptr->phy_chan_id);
|
|
TCHECK(ptr->dialed_no_len);
|
|
printf(" DIALED_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialed_no_len));
|
|
TCHECK(ptr->dialing_no_len);
|
|
printf(" DIALING_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialing_no_len));
|
|
TCHECK(ptr->dialed_no);
|
|
printf(" DIALED_NO(%.64s)", ptr->dialed_no);
|
|
TCHECK(ptr->dialing_no);
|
|
printf(" DIALING_NO(%.64s)", ptr->dialing_no);
|
|
TCHECK(ptr->subaddr);
|
|
pptp_subaddr_print(&ptr->subaddr[0]);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_icrp_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_icrp *ptr = (struct pptp_msg_icrp *)dat;
|
|
|
|
TCHECK(ptr->call_id);
|
|
pptp_call_id_print(&ptr->call_id);
|
|
TCHECK(ptr->peer_call_id);
|
|
pptp_peer_call_id_print(&ptr->peer_call_id);
|
|
TCHECK(ptr->result_code);
|
|
pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_ICRP);
|
|
TCHECK(ptr->err_code);
|
|
pptp_err_code_print(&ptr->err_code);
|
|
TCHECK(ptr->recv_winsiz);
|
|
pptp_recv_winsiz_print(&ptr->recv_winsiz);
|
|
TCHECK(ptr->pkt_proc_delay);
|
|
pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
|
|
TCHECK(ptr->reserved1);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_iccn_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_iccn *ptr = (struct pptp_msg_iccn *)dat;
|
|
|
|
TCHECK(ptr->peer_call_id);
|
|
pptp_peer_call_id_print(&ptr->peer_call_id);
|
|
TCHECK(ptr->reserved1);
|
|
TCHECK(ptr->conn_speed);
|
|
pptp_conn_speed_print(&ptr->conn_speed);
|
|
TCHECK(ptr->recv_winsiz);
|
|
pptp_recv_winsiz_print(&ptr->recv_winsiz);
|
|
TCHECK(ptr->pkt_proc_delay);
|
|
pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
|
|
TCHECK(ptr->framing_type);
|
|
pptp_framing_type_print(&ptr->framing_type);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_ccrq_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_ccrq *ptr = (struct pptp_msg_ccrq *)dat;
|
|
|
|
TCHECK(ptr->call_id);
|
|
pptp_call_id_print(&ptr->call_id);
|
|
TCHECK(ptr->reserved1);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_cdn_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_cdn *ptr = (struct pptp_msg_cdn *)dat;
|
|
|
|
TCHECK(ptr->call_id);
|
|
pptp_call_id_print(&ptr->call_id);
|
|
TCHECK(ptr->result_code);
|
|
pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_CDN);
|
|
TCHECK(ptr->err_code);
|
|
pptp_err_code_print(&ptr->err_code);
|
|
TCHECK(ptr->cause_code);
|
|
pptp_cause_code_print(&ptr->cause_code);
|
|
TCHECK(ptr->reserved1);
|
|
TCHECK(ptr->call_stats);
|
|
printf(" CALL_STATS(%.128s)", ptr->call_stats);
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_wen_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_wen *ptr = (struct pptp_msg_wen *)dat;
|
|
|
|
TCHECK(ptr->peer_call_id);
|
|
pptp_peer_call_id_print(&ptr->peer_call_id);
|
|
TCHECK(ptr->reserved1);
|
|
TCHECK(ptr->crc_err);
|
|
printf(" CRC_ERR(%u)", EXTRACT_32BITS(&ptr->crc_err));
|
|
TCHECK(ptr->framing_err);
|
|
printf(" FRAMING_ERR(%u)", EXTRACT_32BITS(&ptr->framing_err));
|
|
TCHECK(ptr->hardware_overrun);
|
|
printf(" HARDWARE_OVERRUN(%u)", EXTRACT_32BITS(&ptr->hardware_overrun));
|
|
TCHECK(ptr->buffer_overrun);
|
|
printf(" BUFFER_OVERRUN(%u)", EXTRACT_32BITS(&ptr->buffer_overrun));
|
|
TCHECK(ptr->timeout_err);
|
|
printf(" TIMEOUT_ERR(%u)", EXTRACT_32BITS(&ptr->timeout_err));
|
|
TCHECK(ptr->align_err);
|
|
printf(" ALIGN_ERR(%u)", EXTRACT_32BITS(&ptr->align_err));
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
static void
|
|
pptp_sli_print(const u_char *dat)
|
|
{
|
|
struct pptp_msg_sli *ptr = (struct pptp_msg_sli *)dat;
|
|
|
|
TCHECK(ptr->peer_call_id);
|
|
pptp_peer_call_id_print(&ptr->peer_call_id);
|
|
TCHECK(ptr->reserved1);
|
|
TCHECK(ptr->send_accm);
|
|
printf(" SEND_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->send_accm));
|
|
TCHECK(ptr->recv_accm);
|
|
printf(" RECV_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->recv_accm));
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|
|
|
|
void
|
|
pptp_print(const u_char *dat)
|
|
{
|
|
const struct pptp_hdr *hdr;
|
|
u_int32_t mc;
|
|
u_int16_t ctrl_msg_type;
|
|
|
|
printf(": pptp");
|
|
|
|
hdr = (struct pptp_hdr *)dat;
|
|
|
|
TCHECK(hdr->length);
|
|
if (vflag) {
|
|
printf(" Length=%u", EXTRACT_16BITS(&hdr->length));
|
|
}
|
|
TCHECK(hdr->msg_type);
|
|
if (vflag) {
|
|
switch(EXTRACT_16BITS(&hdr->msg_type)) {
|
|
case PPTP_MSG_TYPE_CTRL:
|
|
printf(" CTRL-MSG");
|
|
break;
|
|
case PPTP_MSG_TYPE_MGMT:
|
|
printf(" MGMT-MSG");
|
|
break;
|
|
default:
|
|
printf(" UNKNOWN-MSG-TYPE");
|
|
break;
|
|
}
|
|
}
|
|
|
|
TCHECK(hdr->magic_cookie);
|
|
mc = EXTRACT_32BITS(&hdr->magic_cookie);
|
|
if (mc != PPTP_MAGIC_COOKIE) {
|
|
printf(" UNEXPECTED Magic-Cookie!!(%08x)", mc);
|
|
}
|
|
if (vflag || mc != PPTP_MAGIC_COOKIE) {
|
|
printf(" Magic-Cookie=%08x", mc);
|
|
}
|
|
TCHECK(hdr->ctrl_msg_type);
|
|
ctrl_msg_type = EXTRACT_16BITS(&hdr->ctrl_msg_type);
|
|
if (ctrl_msg_type < PPTP_MAX_MSGTYPE_INDEX) {
|
|
printf(" CTRL_MSGTYPE=%s",
|
|
pptp_message_type_string[ctrl_msg_type]);
|
|
} else {
|
|
printf(" UNKNOWN_CTRL_MSGTYPE(%u)", ctrl_msg_type);
|
|
}
|
|
TCHECK(hdr->reserved0);
|
|
|
|
dat += 12;
|
|
|
|
switch(ctrl_msg_type) {
|
|
case PPTP_CTRL_MSG_TYPE_SCCRQ:
|
|
pptp_sccrq_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_SCCRP:
|
|
pptp_sccrp_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_StopCCRQ:
|
|
pptp_stopccrq_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_StopCCRP:
|
|
pptp_stopccrp_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_ECHORQ:
|
|
pptp_echorq_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_ECHORP:
|
|
pptp_echorp_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_OCRQ:
|
|
pptp_ocrq_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_OCRP:
|
|
pptp_ocrp_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_ICRQ:
|
|
pptp_icrq_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_ICRP:
|
|
pptp_icrp_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_ICCN:
|
|
pptp_iccn_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_CCRQ:
|
|
pptp_ccrq_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_CDN:
|
|
pptp_cdn_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_WEN:
|
|
pptp_wen_print(dat);
|
|
break;
|
|
case PPTP_CTRL_MSG_TYPE_SLI:
|
|
pptp_sli_print(dat);
|
|
break;
|
|
default:
|
|
/* do nothing */
|
|
break;
|
|
}
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf("%s", tstr);
|
|
}
|