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phunix/external/bsd/tcpdump/dist/print-pptp.c
David van Moolenbroek b636d99d91 Import NetBSD tcpdump(8) 
For now, printing of Sun RPC requests is disabled because we do not
yet have the RPC header files.  This should affect basically noone,
as we do not have any RPC-based programs yet, for the same reason.

Change-Id: Ie7818faaaacdc104d8b2c37a68866b4ce18247d6
2017-03-21 22:00:21 +00:00

1011 lines
26 KiB
C
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/*
* Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* PPTP support contributed by Motonori Shindo (mshindo@mshindo.net)
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: print-pptp.c,v 1.4 2014/11/20 03:05:03 christos Exp $");
#endif
#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
#include "interface.h"
#include "extract.h"
static const char tstr[] = " [|pptp]";
#define PPTP_MSG_TYPE_CTRL 1 /* Control Message */
#define PPTP_MSG_TYPE_MGMT 2 /* Management Message (currently not used */
#define PPTP_MAGIC_COOKIE 0x1a2b3c4d /* for sanity check */
#define PPTP_CTRL_MSG_TYPE_SCCRQ 1
#define PPTP_CTRL_MSG_TYPE_SCCRP 2
#define PPTP_CTRL_MSG_TYPE_StopCCRQ 3
#define PPTP_CTRL_MSG_TYPE_StopCCRP 4
#define PPTP_CTRL_MSG_TYPE_ECHORQ 5
#define PPTP_CTRL_MSG_TYPE_ECHORP 6
#define PPTP_CTRL_MSG_TYPE_OCRQ 7
#define PPTP_CTRL_MSG_TYPE_OCRP 8
#define PPTP_CTRL_MSG_TYPE_ICRQ 9
#define PPTP_CTRL_MSG_TYPE_ICRP 10
#define PPTP_CTRL_MSG_TYPE_ICCN 11
#define PPTP_CTRL_MSG_TYPE_CCRQ 12
#define PPTP_CTRL_MSG_TYPE_CDN 13
#define PPTP_CTRL_MSG_TYPE_WEN 14
#define PPTP_CTRL_MSG_TYPE_SLI 15
#define PPTP_FRAMING_CAP_ASYNC_MASK 0x00000001 /* Aynchronous */
#define PPTP_FRAMING_CAP_SYNC_MASK 0x00000002 /* Synchronous */
#define PPTP_BEARER_CAP_ANALOG_MASK 0x00000001 /* Analog */
#define PPTP_BEARER_CAP_DIGITAL_MASK 0x00000002 /* Digital */
static const char *pptp_message_type_string[] = {
"NOT_DEFINED", /* 0 Not defined in the RFC2637 */
"SCCRQ", /* 1 Start-Control-Connection-Request */
"SCCRP", /* 2 Start-Control-Connection-Reply */
"StopCCRQ", /* 3 Stop-Control-Connection-Request */
"StopCCRP", /* 4 Stop-Control-Connection-Reply */
"ECHORQ", /* 5 Echo Request */
"ECHORP", /* 6 Echo Reply */
"OCRQ", /* 7 Outgoing-Call-Request */
"OCRP", /* 8 Outgoing-Call-Reply */
"ICRQ", /* 9 Incoming-Call-Request */
"ICRP", /* 10 Incoming-Call-Reply */
"ICCN", /* 11 Incoming-Call-Connected */
"CCRQ", /* 12 Call-Clear-Request */
"CDN", /* 13 Call-Disconnect-Notify */
"WEN", /* 14 WAN-Error-Notify */
"SLI" /* 15 Set-Link-Info */
#define PPTP_MAX_MSGTYPE_INDEX 16
};
/* common for all PPTP control messages */
struct pptp_hdr {
uint16_t length;
uint16_t msg_type;
uint32_t magic_cookie;
uint16_t ctrl_msg_type;
uint16_t reserved0;
};
struct pptp_msg_sccrq {
uint16_t proto_ver;
uint16_t reserved1;
uint32_t framing_cap;
uint32_t bearer_cap;
uint16_t max_channel;
uint16_t firm_rev;
u_char hostname[64];
u_char vendor[64];
};
struct pptp_msg_sccrp {
uint16_t proto_ver;
uint8_t result_code;
uint8_t err_code;
uint32_t framing_cap;
uint32_t bearer_cap;
uint16_t max_channel;
uint16_t firm_rev;
u_char hostname[64];
u_char vendor[64];
};
struct pptp_msg_stopccrq {
uint8_t reason;
uint8_t reserved1;
uint16_t reserved2;
};
struct pptp_msg_stopccrp {
uint8_t result_code;
uint8_t err_code;
uint16_t reserved1;
};
struct pptp_msg_echorq {
uint32_t id;
};
struct pptp_msg_echorp {
uint32_t id;
uint8_t result_code;
uint8_t err_code;
uint16_t reserved1;
};
struct pptp_msg_ocrq {
uint16_t call_id;
uint16_t call_ser;
uint32_t min_bps;
uint32_t max_bps;
uint32_t bearer_type;
uint32_t framing_type;
uint16_t recv_winsiz;
uint16_t pkt_proc_delay;
uint16_t phone_no_len;
uint16_t reserved1;
u_char phone_no[64];
u_char subaddr[64];
};
struct pptp_msg_ocrp {
uint16_t call_id;
uint16_t peer_call_id;
uint8_t result_code;
uint8_t err_code;
uint16_t cause_code;
uint32_t conn_speed;
uint16_t recv_winsiz;
uint16_t pkt_proc_delay;
uint32_t phy_chan_id;
};
struct pptp_msg_icrq {
uint16_t call_id;
uint16_t call_ser;
uint32_t bearer_type;
uint32_t phy_chan_id;
uint16_t dialed_no_len;
uint16_t dialing_no_len;
u_char dialed_no[64]; /* DNIS */
u_char dialing_no[64]; /* CLID */
u_char subaddr[64];
};
struct pptp_msg_icrp {
uint16_t call_id;
uint16_t peer_call_id;
uint8_t result_code;
uint8_t err_code;
uint16_t recv_winsiz;
uint16_t pkt_proc_delay;
uint16_t reserved1;
};
struct pptp_msg_iccn {
uint16_t peer_call_id;
uint16_t reserved1;
uint32_t conn_speed;
uint16_t recv_winsiz;
uint16_t pkt_proc_delay;
uint32_t framing_type;
};
struct pptp_msg_ccrq {
uint16_t call_id;
uint16_t reserved1;
};
struct pptp_msg_cdn {
uint16_t call_id;
uint8_t result_code;
uint8_t err_code;
uint16_t cause_code;
uint16_t reserved1;
u_char call_stats[128];
};
struct pptp_msg_wen {
uint16_t peer_call_id;
uint16_t reserved1;
uint32_t crc_err;
uint32_t framing_err;
uint32_t hardware_overrun;
uint32_t buffer_overrun;
uint32_t timeout_err;
uint32_t align_err;
};
struct pptp_msg_sli {
uint16_t peer_call_id;
uint16_t reserved1;
uint32_t send_accm;
uint32_t recv_accm;
};
/* attributes that appear more than once in above messages:
Number of
occurence attributes
--------------------------------------
2 uint32_t bearer_cap;
2 uint32_t bearer_type;
6 uint16_t call_id;
2 uint16_t call_ser;
2 uint16_t cause_code;
2 uint32_t conn_speed;
6 uint8_t err_code;
2 uint16_t firm_rev;
2 uint32_t framing_cap;
2 uint32_t framing_type;
2 u_char hostname[64];
2 uint32_t id;
2 uint16_t max_channel;
5 uint16_t peer_call_id;
2 uint32_t phy_chan_id;
4 uint16_t pkt_proc_delay;
2 uint16_t proto_ver;
4 uint16_t recv_winsiz;
2 uint8_t reserved1;
9 uint16_t reserved1;
6 uint8_t result_code;
2 u_char subaddr[64];
2 u_char vendor[64];
so I will prepare print out functions for these attributes (except for
reserved*).
*/
/******************************************/
/* Attribute-specific print out functions */
/******************************************/
/* In these attribute-specific print-out functions, it't not necessary
to do ND_TCHECK because they are already checked in the caller of
these functions. */
static void
pptp_bearer_cap_print(netdissect_options *ndo,
const uint32_t *bearer_cap)
{
ND_PRINT((ndo, " BEARER_CAP(%s%s)",
EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_DIGITAL_MASK ? "D" : "",
EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_ANALOG_MASK ? "A" : ""));
}
static const struct tok pptp_btype_str[] = {
{ 1, "A" }, /* Analog */
{ 2, "D" }, /* Digital */
{ 3, "Any" },
{ 0, NULL }
};
static void
pptp_bearer_type_print(netdissect_options *ndo,
const uint32_t *bearer_type)
{
ND_PRINT((ndo, " BEARER_TYPE(%s)",
tok2str(pptp_btype_str, "?", EXTRACT_32BITS(bearer_type))));
}
static void
pptp_call_id_print(netdissect_options *ndo,
const uint16_t *call_id)
{
ND_PRINT((ndo, " CALL_ID(%u)", EXTRACT_16BITS(call_id)));
}
static void
pptp_call_ser_print(netdissect_options *ndo,
const uint16_t *call_ser)
{
ND_PRINT((ndo, " CALL_SER_NUM(%u)", EXTRACT_16BITS(call_ser)));
}
static void
pptp_cause_code_print(netdissect_options *ndo,
const uint16_t *cause_code)
{
ND_PRINT((ndo, " CAUSE_CODE(%u)", EXTRACT_16BITS(cause_code)));
}
static void
pptp_conn_speed_print(netdissect_options *ndo,
const uint32_t *conn_speed)
{
ND_PRINT((ndo, " CONN_SPEED(%u)", EXTRACT_32BITS(conn_speed)));
}
static const struct tok pptp_errcode_str[] = {
{ 0, "None" },
{ 1, "Not-Connected" },
{ 2, "Bad-Format" },
{ 3, "Bad-Value" },
{ 4, "No-Resource" },
{ 5, "Bad-Call-ID" },
{ 6, "PAC-Error" },
{ 0, NULL }
};
static void
pptp_err_code_print(netdissect_options *ndo,
const uint8_t *err_code)
{
ND_PRINT((ndo, " ERR_CODE(%u", *err_code));
if (ndo->ndo_vflag) {
ND_PRINT((ndo, ":%s", tok2str(pptp_errcode_str, "?", *err_code)));
}
ND_PRINT((ndo, ")"));
}
static void
pptp_firm_rev_print(netdissect_options *ndo,
const uint16_t *firm_rev)
{
ND_PRINT((ndo, " FIRM_REV(%u)", EXTRACT_16BITS(firm_rev)));
}
static void
pptp_framing_cap_print(netdissect_options *ndo,
const uint32_t *framing_cap)
{
ND_PRINT((ndo, " FRAME_CAP("));
if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_ASYNC_MASK) {
ND_PRINT((ndo, "A")); /* Async */
}
if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_SYNC_MASK) {
ND_PRINT((ndo, "S")); /* Sync */
}
ND_PRINT((ndo, ")"));
}
static const struct tok pptp_ftype_str[] = {
{ 1, "A" }, /* Async */
{ 2, "S" }, /* Sync */
{ 3, "E" }, /* Either */
{ 0, NULL }
};
static void
pptp_framing_type_print(netdissect_options *ndo,
const uint32_t *framing_type)
{
ND_PRINT((ndo, " FRAME_TYPE(%s)",
tok2str(pptp_ftype_str, "?", EXTRACT_32BITS(framing_type))));
}
static void
pptp_hostname_print(netdissect_options *ndo,
const u_char *hostname)
{
ND_PRINT((ndo, " HOSTNAME(%.64s)", hostname));
}
static void
pptp_id_print(netdissect_options *ndo,
const uint32_t *id)
{
ND_PRINT((ndo, " ID(%u)", EXTRACT_32BITS(id)));
}
static void
pptp_max_channel_print(netdissect_options *ndo,
const uint16_t *max_channel)
{
ND_PRINT((ndo, " MAX_CHAN(%u)", EXTRACT_16BITS(max_channel)));
}
static void
pptp_peer_call_id_print(netdissect_options *ndo,
const uint16_t *peer_call_id)
{
ND_PRINT((ndo, " PEER_CALL_ID(%u)", EXTRACT_16BITS(peer_call_id)));
}
static void
pptp_phy_chan_id_print(netdissect_options *ndo,
const uint32_t *phy_chan_id)
{
ND_PRINT((ndo, " PHY_CHAN_ID(%u)", EXTRACT_32BITS(phy_chan_id)));
}
static void
pptp_pkt_proc_delay_print(netdissect_options *ndo,
const uint16_t *pkt_proc_delay)
{
ND_PRINT((ndo, " PROC_DELAY(%u)", EXTRACT_16BITS(pkt_proc_delay)));
}
static void
pptp_proto_ver_print(netdissect_options *ndo,
const uint16_t *proto_ver)
{
ND_PRINT((ndo, " PROTO_VER(%u.%u)", /* Version.Revision */
EXTRACT_16BITS(proto_ver) >> 8,
EXTRACT_16BITS(proto_ver) & 0xff));
}
static void
pptp_recv_winsiz_print(netdissect_options *ndo,
const uint16_t *recv_winsiz)
{
ND_PRINT((ndo, " RECV_WIN(%u)", EXTRACT_16BITS(recv_winsiz)));
}
static const struct tok pptp_scrrp_str[] = {
{ 1, "Successful channel establishment" },
{ 2, "General error" },
{ 3, "Command channel already exists" },
{ 4, "Requester is not authorized to establish a command channel" },
{ 5, "The protocol version of the requester is not supported" },
{ 0, NULL }
};
static const struct tok pptp_echorp_str[] = {
{ 1, "OK" },
{ 2, "General Error" },
{ 0, NULL }
};
static const struct tok pptp_ocrp_str[] = {
{ 1, "Connected" },
{ 2, "General Error" },
{ 3, "No Carrier" },
{ 4, "Busy" },
{ 5, "No Dial Tone" },
{ 6, "Time-out" },
{ 7, "Do Not Accept" },
{ 0, NULL }
};
static const struct tok pptp_icrp_str[] = {
{ 1, "Connect" },
{ 2, "General Error" },
{ 3, "Do Not Accept" },
{ 0, NULL }
};
static const struct tok pptp_cdn_str[] = {
{ 1, "Lost Carrier" },
{ 2, "General Error" },
{ 3, "Admin Shutdown" },
{ 4, "Request" },
{ 0, NULL }
};
static void
pptp_result_code_print(netdissect_options *ndo,
const uint8_t *result_code, int ctrl_msg_type)
{
ND_PRINT((ndo, " RESULT_CODE(%u", *result_code));
if (ndo->ndo_vflag) {
const struct tok *dict =
ctrl_msg_type == PPTP_CTRL_MSG_TYPE_SCCRP ? pptp_scrrp_str :
ctrl_msg_type == PPTP_CTRL_MSG_TYPE_StopCCRP ? pptp_echorp_str :
ctrl_msg_type == PPTP_CTRL_MSG_TYPE_ECHORP ? pptp_echorp_str :
ctrl_msg_type == PPTP_CTRL_MSG_TYPE_OCRP ? pptp_ocrp_str :
ctrl_msg_type == PPTP_CTRL_MSG_TYPE_ICRP ? pptp_icrp_str :
ctrl_msg_type == PPTP_CTRL_MSG_TYPE_CDN ? pptp_cdn_str :
NULL; /* assertion error */
if (dict != NULL)
ND_PRINT((ndo, ":%s", tok2str(dict, "?", *result_code)));
}
ND_PRINT((ndo, ")"));
}
static void
pptp_subaddr_print(netdissect_options *ndo,
const u_char *subaddr)
{
ND_PRINT((ndo, " SUB_ADDR(%.64s)", subaddr));
}
static void
pptp_vendor_print(netdissect_options *ndo,
const u_char *vendor)
{
ND_PRINT((ndo, " VENDOR(%.64s)", vendor));
}
/************************************/
/* PPTP message print out functions */
/************************************/
static void
pptp_sccrq_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_sccrq *ptr = (struct pptp_msg_sccrq *)dat;
ND_TCHECK(ptr->proto_ver);
pptp_proto_ver_print(ndo, &ptr->proto_ver);
ND_TCHECK(ptr->reserved1);
ND_TCHECK(ptr->framing_cap);
pptp_framing_cap_print(ndo, &ptr->framing_cap);
ND_TCHECK(ptr->bearer_cap);
pptp_bearer_cap_print(ndo, &ptr->bearer_cap);
ND_TCHECK(ptr->max_channel);
pptp_max_channel_print(ndo, &ptr->max_channel);
ND_TCHECK(ptr->firm_rev);
pptp_firm_rev_print(ndo, &ptr->firm_rev);
ND_TCHECK(ptr->hostname);
pptp_hostname_print(ndo, &ptr->hostname[0]);
ND_TCHECK(ptr->vendor);
pptp_vendor_print(ndo, &ptr->vendor[0]);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_sccrp_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_sccrp *ptr = (struct pptp_msg_sccrp *)dat;
ND_TCHECK(ptr->proto_ver);
pptp_proto_ver_print(ndo, &ptr->proto_ver);
ND_TCHECK(ptr->result_code);
pptp_result_code_print(ndo, &ptr->result_code, PPTP_CTRL_MSG_TYPE_SCCRP);
ND_TCHECK(ptr->err_code);
pptp_err_code_print(ndo, &ptr->err_code);
ND_TCHECK(ptr->framing_cap);
pptp_framing_cap_print(ndo, &ptr->framing_cap);
ND_TCHECK(ptr->bearer_cap);
pptp_bearer_cap_print(ndo, &ptr->bearer_cap);
ND_TCHECK(ptr->max_channel);
pptp_max_channel_print(ndo, &ptr->max_channel);
ND_TCHECK(ptr->firm_rev);
pptp_firm_rev_print(ndo, &ptr->firm_rev);
ND_TCHECK(ptr->hostname);
pptp_hostname_print(ndo, &ptr->hostname[0]);
ND_TCHECK(ptr->vendor);
pptp_vendor_print(ndo, &ptr->vendor[0]);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_stopccrq_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_stopccrq *ptr = (struct pptp_msg_stopccrq *)dat;
ND_TCHECK(ptr->reason);
ND_PRINT((ndo, " REASON(%u", ptr->reason));
if (ndo->ndo_vflag) {
switch (ptr->reason) {
case 1:
ND_PRINT((ndo, ":None"));
break;
case 2:
ND_PRINT((ndo, ":Stop-Protocol"));
break;
case 3:
ND_PRINT((ndo, ":Stop-Local-Shutdown"));
break;
default:
ND_PRINT((ndo, ":?"));
break;
}
}
ND_PRINT((ndo, ")"));
ND_TCHECK(ptr->reserved1);
ND_TCHECK(ptr->reserved2);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_stopccrp_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_stopccrp *ptr = (struct pptp_msg_stopccrp *)dat;
ND_TCHECK(ptr->result_code);
pptp_result_code_print(ndo, &ptr->result_code, PPTP_CTRL_MSG_TYPE_StopCCRP);
ND_TCHECK(ptr->err_code);
pptp_err_code_print(ndo, &ptr->err_code);
ND_TCHECK(ptr->reserved1);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_echorq_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_echorq *ptr = (struct pptp_msg_echorq *)dat;
ND_TCHECK(ptr->id);
pptp_id_print(ndo, &ptr->id);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_echorp_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_echorp *ptr = (struct pptp_msg_echorp *)dat;
ND_TCHECK(ptr->id);
pptp_id_print(ndo, &ptr->id);
ND_TCHECK(ptr->result_code);
pptp_result_code_print(ndo, &ptr->result_code, PPTP_CTRL_MSG_TYPE_ECHORP);
ND_TCHECK(ptr->err_code);
pptp_err_code_print(ndo, &ptr->err_code);
ND_TCHECK(ptr->reserved1);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_ocrq_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_ocrq *ptr = (struct pptp_msg_ocrq *)dat;
ND_TCHECK(ptr->call_id);
pptp_call_id_print(ndo, &ptr->call_id);
ND_TCHECK(ptr->call_ser);
pptp_call_ser_print(ndo, &ptr->call_ser);
ND_TCHECK(ptr->min_bps);
ND_PRINT((ndo, " MIN_BPS(%u)", EXTRACT_32BITS(&ptr->min_bps)));
ND_TCHECK(ptr->max_bps);
ND_PRINT((ndo, " MAX_BPS(%u)", EXTRACT_32BITS(&ptr->max_bps)));
ND_TCHECK(ptr->bearer_type);
pptp_bearer_type_print(ndo, &ptr->bearer_type);
ND_TCHECK(ptr->framing_type);
pptp_framing_type_print(ndo, &ptr->framing_type);
ND_TCHECK(ptr->recv_winsiz);
pptp_recv_winsiz_print(ndo, &ptr->recv_winsiz);
ND_TCHECK(ptr->pkt_proc_delay);
pptp_pkt_proc_delay_print(ndo, &ptr->pkt_proc_delay);
ND_TCHECK(ptr->phone_no_len);
ND_PRINT((ndo, " PHONE_NO_LEN(%u)", EXTRACT_16BITS(&ptr->phone_no_len)));
ND_TCHECK(ptr->reserved1);
ND_TCHECK(ptr->phone_no);
ND_PRINT((ndo, " PHONE_NO(%.64s)", ptr->phone_no));
ND_TCHECK(ptr->subaddr);
pptp_subaddr_print(ndo, &ptr->subaddr[0]);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_ocrp_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_ocrp *ptr = (struct pptp_msg_ocrp *)dat;
ND_TCHECK(ptr->call_id);
pptp_call_id_print(ndo, &ptr->call_id);
ND_TCHECK(ptr->peer_call_id);
pptp_peer_call_id_print(ndo, &ptr->peer_call_id);
ND_TCHECK(ptr->result_code);
pptp_result_code_print(ndo, &ptr->result_code, PPTP_CTRL_MSG_TYPE_OCRP);
ND_TCHECK(ptr->err_code);
pptp_err_code_print(ndo, &ptr->err_code);
ND_TCHECK(ptr->cause_code);
pptp_cause_code_print(ndo, &ptr->cause_code);
ND_TCHECK(ptr->conn_speed);
pptp_conn_speed_print(ndo, &ptr->conn_speed);
ND_TCHECK(ptr->recv_winsiz);
pptp_recv_winsiz_print(ndo, &ptr->recv_winsiz);
ND_TCHECK(ptr->pkt_proc_delay);
pptp_pkt_proc_delay_print(ndo, &ptr->pkt_proc_delay);
ND_TCHECK(ptr->phy_chan_id);
pptp_phy_chan_id_print(ndo, &ptr->phy_chan_id);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_icrq_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_icrq *ptr = (struct pptp_msg_icrq *)dat;
ND_TCHECK(ptr->call_id);
pptp_call_id_print(ndo, &ptr->call_id);
ND_TCHECK(ptr->call_ser);
pptp_call_ser_print(ndo, &ptr->call_ser);
ND_TCHECK(ptr->bearer_type);
pptp_bearer_type_print(ndo, &ptr->bearer_type);
ND_TCHECK(ptr->phy_chan_id);
pptp_phy_chan_id_print(ndo, &ptr->phy_chan_id);
ND_TCHECK(ptr->dialed_no_len);
ND_PRINT((ndo, " DIALED_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialed_no_len)));
ND_TCHECK(ptr->dialing_no_len);
ND_PRINT((ndo, " DIALING_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialing_no_len)));
ND_TCHECK(ptr->dialed_no);
ND_PRINT((ndo, " DIALED_NO(%.64s)", ptr->dialed_no));
ND_TCHECK(ptr->dialing_no);
ND_PRINT((ndo, " DIALING_NO(%.64s)", ptr->dialing_no));
ND_TCHECK(ptr->subaddr);
pptp_subaddr_print(ndo, &ptr->subaddr[0]);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_icrp_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_icrp *ptr = (struct pptp_msg_icrp *)dat;
ND_TCHECK(ptr->call_id);
pptp_call_id_print(ndo, &ptr->call_id);
ND_TCHECK(ptr->peer_call_id);
pptp_peer_call_id_print(ndo, &ptr->peer_call_id);
ND_TCHECK(ptr->result_code);
pptp_result_code_print(ndo, &ptr->result_code, PPTP_CTRL_MSG_TYPE_ICRP);
ND_TCHECK(ptr->err_code);
pptp_err_code_print(ndo, &ptr->err_code);
ND_TCHECK(ptr->recv_winsiz);
pptp_recv_winsiz_print(ndo, &ptr->recv_winsiz);
ND_TCHECK(ptr->pkt_proc_delay);
pptp_pkt_proc_delay_print(ndo, &ptr->pkt_proc_delay);
ND_TCHECK(ptr->reserved1);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_iccn_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_iccn *ptr = (struct pptp_msg_iccn *)dat;
ND_TCHECK(ptr->peer_call_id);
pptp_peer_call_id_print(ndo, &ptr->peer_call_id);
ND_TCHECK(ptr->reserved1);
ND_TCHECK(ptr->conn_speed);
pptp_conn_speed_print(ndo, &ptr->conn_speed);
ND_TCHECK(ptr->recv_winsiz);
pptp_recv_winsiz_print(ndo, &ptr->recv_winsiz);
ND_TCHECK(ptr->pkt_proc_delay);
pptp_pkt_proc_delay_print(ndo, &ptr->pkt_proc_delay);
ND_TCHECK(ptr->framing_type);
pptp_framing_type_print(ndo, &ptr->framing_type);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_ccrq_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_ccrq *ptr = (struct pptp_msg_ccrq *)dat;
ND_TCHECK(ptr->call_id);
pptp_call_id_print(ndo, &ptr->call_id);
ND_TCHECK(ptr->reserved1);
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_cdn_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_cdn *ptr = (struct pptp_msg_cdn *)dat;
ND_TCHECK(ptr->call_id);
pptp_call_id_print(ndo, &ptr->call_id);
ND_TCHECK(ptr->result_code);
pptp_result_code_print(ndo, &ptr->result_code, PPTP_CTRL_MSG_TYPE_CDN);
ND_TCHECK(ptr->err_code);
pptp_err_code_print(ndo, &ptr->err_code);
ND_TCHECK(ptr->cause_code);
pptp_cause_code_print(ndo, &ptr->cause_code);
ND_TCHECK(ptr->reserved1);
ND_TCHECK(ptr->call_stats);
ND_PRINT((ndo, " CALL_STATS(%.128s)", ptr->call_stats));
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_wen_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_wen *ptr = (struct pptp_msg_wen *)dat;
ND_TCHECK(ptr->peer_call_id);
pptp_peer_call_id_print(ndo, &ptr->peer_call_id);
ND_TCHECK(ptr->reserved1);
ND_TCHECK(ptr->crc_err);
ND_PRINT((ndo, " CRC_ERR(%u)", EXTRACT_32BITS(&ptr->crc_err)));
ND_TCHECK(ptr->framing_err);
ND_PRINT((ndo, " FRAMING_ERR(%u)", EXTRACT_32BITS(&ptr->framing_err)));
ND_TCHECK(ptr->hardware_overrun);
ND_PRINT((ndo, " HARDWARE_OVERRUN(%u)", EXTRACT_32BITS(&ptr->hardware_overrun)));
ND_TCHECK(ptr->buffer_overrun);
ND_PRINT((ndo, " BUFFER_OVERRUN(%u)", EXTRACT_32BITS(&ptr->buffer_overrun)));
ND_TCHECK(ptr->timeout_err);
ND_PRINT((ndo, " TIMEOUT_ERR(%u)", EXTRACT_32BITS(&ptr->timeout_err)));
ND_TCHECK(ptr->align_err);
ND_PRINT((ndo, " ALIGN_ERR(%u)", EXTRACT_32BITS(&ptr->align_err)));
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
static void
pptp_sli_print(netdissect_options *ndo,
const u_char *dat)
{
struct pptp_msg_sli *ptr = (struct pptp_msg_sli *)dat;
ND_TCHECK(ptr->peer_call_id);
pptp_peer_call_id_print(ndo, &ptr->peer_call_id);
ND_TCHECK(ptr->reserved1);
ND_TCHECK(ptr->send_accm);
ND_PRINT((ndo, " SEND_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->send_accm)));
ND_TCHECK(ptr->recv_accm);
ND_PRINT((ndo, " RECV_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->recv_accm)));
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
void
pptp_print(netdissect_options *ndo,
const u_char *dat)
{
const struct pptp_hdr *hdr;
uint32_t mc;
uint16_t ctrl_msg_type;
ND_PRINT((ndo, ": pptp"));
hdr = (struct pptp_hdr *)dat;
ND_TCHECK(hdr->length);
if (ndo->ndo_vflag) {
ND_PRINT((ndo, " Length=%u", EXTRACT_16BITS(&hdr->length)));
}
ND_TCHECK(hdr->msg_type);
if (ndo->ndo_vflag) {
switch(EXTRACT_16BITS(&hdr->msg_type)) {
case PPTP_MSG_TYPE_CTRL:
ND_PRINT((ndo, " CTRL-MSG"));
break;
case PPTP_MSG_TYPE_MGMT:
ND_PRINT((ndo, " MGMT-MSG"));
break;
default:
ND_PRINT((ndo, " UNKNOWN-MSG-TYPE"));
break;
}
}
ND_TCHECK(hdr->magic_cookie);
mc = EXTRACT_32BITS(&hdr->magic_cookie);
if (mc != PPTP_MAGIC_COOKIE) {
ND_PRINT((ndo, " UNEXPECTED Magic-Cookie!!(%08x)", mc));
}
if (ndo->ndo_vflag || mc != PPTP_MAGIC_COOKIE) {
ND_PRINT((ndo, " Magic-Cookie=%08x", mc));
}
ND_TCHECK(hdr->ctrl_msg_type);
ctrl_msg_type = EXTRACT_16BITS(&hdr->ctrl_msg_type);
if (ctrl_msg_type < PPTP_MAX_MSGTYPE_INDEX) {
ND_PRINT((ndo, " CTRL_MSGTYPE=%s",
pptp_message_type_string[ctrl_msg_type]));
} else {
ND_PRINT((ndo, " UNKNOWN_CTRL_MSGTYPE(%u)", ctrl_msg_type));
}
ND_TCHECK(hdr->reserved0);
dat += 12;
switch(ctrl_msg_type) {
case PPTP_CTRL_MSG_TYPE_SCCRQ:
pptp_sccrq_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_SCCRP:
pptp_sccrp_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_StopCCRQ:
pptp_stopccrq_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_StopCCRP:
pptp_stopccrp_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_ECHORQ:
pptp_echorq_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_ECHORP:
pptp_echorp_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_OCRQ:
pptp_ocrq_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_OCRP:
pptp_ocrp_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_ICRQ:
pptp_icrq_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_ICRP:
pptp_icrp_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_ICCN:
pptp_iccn_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_CCRQ:
pptp_ccrq_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_CDN:
pptp_cdn_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_WEN:
pptp_wen_print(ndo, dat);
break;
case PPTP_CTRL_MSG_TYPE_SLI:
pptp_sli_print(ndo, dat);
break;
default:
/* do nothing */
break;
}
return;
trunc:
ND_PRINT((ndo, "%s", tstr));
}
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