2000-01-30 00:45:58 +00:00
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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2004-03-31 09:17:26 +00:00
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*
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2000-01-30 00:45:58 +00:00
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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2004-03-31 09:17:26 +00:00
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*
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2000-01-30 00:45:58 +00:00
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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2017-01-31 19:17:06 +00:00
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/* \summary: Internet Security Association and Key Management Protocol (ISAKMP) printer */
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2000-01-30 00:45:58 +00:00
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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2015-01-06 19:03:11 +00:00
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/* The functions from print-esp.c used in this file are only defined when both
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* OpenSSL and evp.h are detected. Employ the same preprocessor device here.
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*/
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#ifndef HAVE_OPENSSL_EVP_H
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#undef HAVE_LIBCRYPTO
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#endif
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2017-01-31 19:17:06 +00:00
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#include <netdissect-stdinc.h>
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2000-01-30 00:45:58 +00:00
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2004-03-31 09:17:26 +00:00
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#include <string.h>
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2000-01-30 00:45:58 +00:00
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2017-01-31 19:17:06 +00:00
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#include "netdissect.h"
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2000-01-30 00:45:58 +00:00
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#include "addrtoname.h"
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2017-01-31 19:17:06 +00:00
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#include "extract.h"
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2000-01-30 00:45:58 +00:00
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2001-04-03 07:45:48 +00:00
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#include "ip.h"
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#include "ip6.h"
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2017-09-18 04:10:54 +00:00
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#include "ipproto.h"
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2001-04-03 07:45:48 +00:00
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2015-01-06 19:03:11 +00:00
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/* refer to RFC 2408 */
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typedef u_char cookie_t[8];
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typedef u_char msgid_t[4];
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#define PORT_ISAKMP 500
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/* 3.1 ISAKMP Header Format (IKEv1 and IKEv2)
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Initiator !
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! Cookie !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Responder !
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! Cookie !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Next Payload ! MjVer ! MnVer ! Exchange Type ! Flags !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Message ID !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Length !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct isakmp {
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cookie_t i_ck; /* Initiator Cookie */
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cookie_t r_ck; /* Responder Cookie */
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uint8_t np; /* Next Payload Type */
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uint8_t vers;
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#define ISAKMP_VERS_MAJOR 0xf0
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#define ISAKMP_VERS_MAJOR_SHIFT 4
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#define ISAKMP_VERS_MINOR 0x0f
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#define ISAKMP_VERS_MINOR_SHIFT 0
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uint8_t etype; /* Exchange Type */
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uint8_t flags; /* Flags */
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msgid_t msgid;
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uint32_t len; /* Length */
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};
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/* Next Payload Type */
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#define ISAKMP_NPTYPE_NONE 0 /* NONE*/
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#define ISAKMP_NPTYPE_SA 1 /* Security Association */
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#define ISAKMP_NPTYPE_P 2 /* Proposal */
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#define ISAKMP_NPTYPE_T 3 /* Transform */
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#define ISAKMP_NPTYPE_KE 4 /* Key Exchange */
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#define ISAKMP_NPTYPE_ID 5 /* Identification */
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#define ISAKMP_NPTYPE_CERT 6 /* Certificate */
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#define ISAKMP_NPTYPE_CR 7 /* Certificate Request */
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#define ISAKMP_NPTYPE_HASH 8 /* Hash */
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#define ISAKMP_NPTYPE_SIG 9 /* Signature */
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#define ISAKMP_NPTYPE_NONCE 10 /* Nonce */
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#define ISAKMP_NPTYPE_N 11 /* Notification */
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#define ISAKMP_NPTYPE_D 12 /* Delete */
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#define ISAKMP_NPTYPE_VID 13 /* Vendor ID */
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#define ISAKMP_NPTYPE_v2E 46 /* v2 Encrypted payload */
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#define IKEv1_MAJOR_VERSION 1
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#define IKEv1_MINOR_VERSION 0
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#define IKEv2_MAJOR_VERSION 2
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#define IKEv2_MINOR_VERSION 0
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/* Flags */
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#define ISAKMP_FLAG_E 0x01 /* Encryption Bit */
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#define ISAKMP_FLAG_C 0x02 /* Commit Bit */
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#define ISAKMP_FLAG_extra 0x04
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/* IKEv2 */
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#define ISAKMP_FLAG_I (1 << 3) /* (I)nitiator */
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#define ISAKMP_FLAG_V (1 << 4) /* (V)ersion */
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#define ISAKMP_FLAG_R (1 << 5) /* (R)esponse */
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/* 3.2 Payload Generic Header
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Next Payload ! RESERVED ! Payload Length !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct isakmp_gen {
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uint8_t np; /* Next Payload */
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uint8_t critical; /* bit 7 - critical, rest is RESERVED */
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uint16_t len; /* Payload Length */
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};
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/* 3.3 Data Attributes
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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!A! Attribute Type ! AF=0 Attribute Length !
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!F! ! AF=1 Attribute Value !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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. AF=0 Attribute Value .
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. AF=1 Not Transmitted .
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct isakmp_data {
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uint16_t type; /* defined by DOI-spec, and Attribute Format */
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uint16_t lorv; /* if f equal 1, Attribute Length */
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/* if f equal 0, Attribute Value */
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/* if f equal 1, Attribute Value */
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};
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/* 3.4 Security Association Payload */
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/* MAY NOT be used, because of being defined in ipsec-doi. */
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/*
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If the current payload is the last in the message,
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then the value of the next payload field will be 0.
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This field MUST NOT contain the
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values for the Proposal or Transform payloads as they are considered
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part of the security association negotiation. For example, this
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field would contain the value "10" (Nonce payload) in the first
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message of a Base Exchange (see Section 4.4) and the value "0" in the
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first message of an Identity Protect Exchange (see Section 4.5).
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*/
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struct ikev1_pl_sa {
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struct isakmp_gen h;
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uint32_t doi; /* Domain of Interpretation */
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uint32_t sit; /* Situation */
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};
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/* 3.5 Proposal Payload */
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/*
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The value of the next payload field MUST only contain the value "2"
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or "0". If there are additional Proposal payloads in the message,
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then this field will be 2. If the current Proposal payload is the
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last within the security association proposal, then this field will
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be 0.
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*/
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struct ikev1_pl_p {
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struct isakmp_gen h;
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uint8_t p_no; /* Proposal # */
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uint8_t prot_id; /* Protocol */
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uint8_t spi_size; /* SPI Size */
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uint8_t num_t; /* Number of Transforms */
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/* SPI */
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};
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/* 3.6 Transform Payload */
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/*
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The value of the next payload field MUST only contain the value "3"
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or "0". If there are additional Transform payloads in the proposal,
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then this field will be 3. If the current Transform payload is the
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last within the proposal, then this field will be 0.
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*/
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struct ikev1_pl_t {
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struct isakmp_gen h;
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uint8_t t_no; /* Transform # */
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uint8_t t_id; /* Transform-Id */
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uint16_t reserved; /* RESERVED2 */
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/* SA Attributes */
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};
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/* 3.7 Key Exchange Payload */
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struct ikev1_pl_ke {
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struct isakmp_gen h;
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/* Key Exchange Data */
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};
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/* 3.8 Identification Payload */
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/* MUST NOT to be used, because of being defined in ipsec-doi. */
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struct ikev1_pl_id {
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struct isakmp_gen h;
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union {
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uint8_t id_type; /* ID Type */
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uint32_t doi_data; /* DOI Specific ID Data */
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} d;
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/* Identification Data */
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};
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/* 3.9 Certificate Payload */
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struct ikev1_pl_cert {
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struct isakmp_gen h;
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uint8_t encode; /* Cert Encoding */
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char cert; /* Certificate Data */
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/*
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This field indicates the type of
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certificate or certificate-related information contained in the
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Certificate Data field.
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*/
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};
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/* 3.10 Certificate Request Payload */
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struct ikev1_pl_cr {
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struct isakmp_gen h;
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uint8_t num_cert; /* # Cert. Types */
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/*
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Certificate Types (variable length)
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-- Contains a list of the types of certificates requested,
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sorted in order of preference. Each individual certificate
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type is 1 octet. This field is NOT requiredo
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*/
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/* # Certificate Authorities (1 octet) */
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/* Certificate Authorities (variable length) */
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};
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/* 3.11 Hash Payload */
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/* may not be used, because of having only data. */
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struct ikev1_pl_hash {
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struct isakmp_gen h;
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/* Hash Data */
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};
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/* 3.12 Signature Payload */
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/* may not be used, because of having only data. */
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struct ikev1_pl_sig {
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struct isakmp_gen h;
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/* Signature Data */
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};
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/* 3.13 Nonce Payload */
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/* may not be used, because of having only data. */
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struct ikev1_pl_nonce {
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struct isakmp_gen h;
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/* Nonce Data */
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};
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/* 3.14 Notification Payload */
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struct ikev1_pl_n {
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struct isakmp_gen h;
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uint32_t doi; /* Domain of Interpretation */
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uint8_t prot_id; /* Protocol-ID */
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uint8_t spi_size; /* SPI Size */
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uint16_t type; /* Notify Message Type */
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/* SPI */
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/* Notification Data */
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};
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/* 3.14.1 Notify Message Types */
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/* NOTIFY MESSAGES - ERROR TYPES */
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#define ISAKMP_NTYPE_INVALID_PAYLOAD_TYPE 1
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#define ISAKMP_NTYPE_DOI_NOT_SUPPORTED 2
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#define ISAKMP_NTYPE_SITUATION_NOT_SUPPORTED 3
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#define ISAKMP_NTYPE_INVALID_COOKIE 4
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#define ISAKMP_NTYPE_INVALID_MAJOR_VERSION 5
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#define ISAKMP_NTYPE_INVALID_MINOR_VERSION 6
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#define ISAKMP_NTYPE_INVALID_EXCHANGE_TYPE 7
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#define ISAKMP_NTYPE_INVALID_FLAGS 8
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#define ISAKMP_NTYPE_INVALID_MESSAGE_ID 9
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#define ISAKMP_NTYPE_INVALID_PROTOCOL_ID 10
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#define ISAKMP_NTYPE_INVALID_SPI 11
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#define ISAKMP_NTYPE_INVALID_TRANSFORM_ID 12
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#define ISAKMP_NTYPE_ATTRIBUTES_NOT_SUPPORTED 13
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#define ISAKMP_NTYPE_NO_PROPOSAL_CHOSEN 14
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#define ISAKMP_NTYPE_BAD_PROPOSAL_SYNTAX 15
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#define ISAKMP_NTYPE_PAYLOAD_MALFORMED 16
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#define ISAKMP_NTYPE_INVALID_KEY_INFORMATION 17
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#define ISAKMP_NTYPE_INVALID_ID_INFORMATION 18
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#define ISAKMP_NTYPE_INVALID_CERT_ENCODING 19
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#define ISAKMP_NTYPE_INVALID_CERTIFICATE 20
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#define ISAKMP_NTYPE_BAD_CERT_REQUEST_SYNTAX 21
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#define ISAKMP_NTYPE_INVALID_CERT_AUTHORITY 22
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#define ISAKMP_NTYPE_INVALID_HASH_INFORMATION 23
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#define ISAKMP_NTYPE_AUTHENTICATION_FAILED 24
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#define ISAKMP_NTYPE_INVALID_SIGNATURE 25
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#define ISAKMP_NTYPE_ADDRESS_NOTIFICATION 26
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/* 3.15 Delete Payload */
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struct ikev1_pl_d {
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struct isakmp_gen h;
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uint32_t doi; /* Domain of Interpretation */
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uint8_t prot_id; /* Protocol-Id */
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uint8_t spi_size; /* SPI Size */
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uint16_t num_spi; /* # of SPIs */
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/* SPI(es) */
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};
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struct ikev1_ph1tab {
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struct ikev1_ph1 *head;
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struct ikev1_ph1 *tail;
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int len;
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};
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struct isakmp_ph2tab {
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struct ikev1_ph2 *head;
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struct ikev1_ph2 *tail;
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int len;
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};
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/* IKEv2 (RFC4306) */
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/* 3.3 Security Association Payload -- generic header */
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/* 3.3.1. Proposal Substructure */
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struct ikev2_p {
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struct isakmp_gen h;
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|
|
uint8_t p_no; /* Proposal # */
|
|
|
|
uint8_t prot_id; /* Protocol */
|
|
|
|
uint8_t spi_size; /* SPI Size */
|
|
|
|
uint8_t num_t; /* Number of Transforms */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* 3.3.2. Transform Substructure */
|
|
|
|
struct ikev2_t {
|
|
|
|
struct isakmp_gen h;
|
|
|
|
uint8_t t_type; /* Transform Type (ENCR,PRF,INTEG,etc.*/
|
|
|
|
uint8_t res2; /* reserved byte */
|
|
|
|
uint16_t t_id; /* Transform ID */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum ikev2_t_type {
|
|
|
|
IV2_T_ENCR = 1,
|
|
|
|
IV2_T_PRF = 2,
|
|
|
|
IV2_T_INTEG= 3,
|
|
|
|
IV2_T_DH = 4,
|
2017-01-31 19:17:06 +00:00
|
|
|
IV2_T_ESN = 5
|
2015-01-06 19:03:11 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* 3.4. Key Exchange Payload */
|
|
|
|
struct ikev2_ke {
|
|
|
|
struct isakmp_gen h;
|
|
|
|
uint16_t ke_group;
|
|
|
|
uint16_t ke_res1;
|
|
|
|
/* KE data */
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* 3.5. Identification Payloads */
|
|
|
|
enum ikev2_id_type {
|
|
|
|
ID_IPV4_ADDR=1,
|
|
|
|
ID_FQDN=2,
|
|
|
|
ID_RFC822_ADDR=3,
|
|
|
|
ID_IPV6_ADDR=5,
|
|
|
|
ID_DER_ASN1_DN=9,
|
|
|
|
ID_DER_ASN1_GN=10,
|
2017-01-31 19:17:06 +00:00
|
|
|
ID_KEY_ID=11
|
2015-01-06 19:03:11 +00:00
|
|
|
};
|
|
|
|
struct ikev2_id {
|
|
|
|
struct isakmp_gen h;
|
|
|
|
uint8_t type; /* ID type */
|
|
|
|
uint8_t res1;
|
|
|
|
uint16_t res2;
|
|
|
|
/* SPI */
|
|
|
|
/* Notification Data */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* 3.10 Notification Payload */
|
|
|
|
struct ikev2_n {
|
|
|
|
struct isakmp_gen h;
|
|
|
|
uint8_t prot_id; /* Protocol-ID */
|
|
|
|
uint8_t spi_size; /* SPI Size */
|
|
|
|
uint16_t type; /* Notify Message Type */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum ikev2_n_type {
|
|
|
|
IV2_NOTIFY_UNSUPPORTED_CRITICAL_PAYLOAD = 1,
|
|
|
|
IV2_NOTIFY_INVALID_IKE_SPI = 4,
|
|
|
|
IV2_NOTIFY_INVALID_MAJOR_VERSION = 5,
|
|
|
|
IV2_NOTIFY_INVALID_SYNTAX = 7,
|
|
|
|
IV2_NOTIFY_INVALID_MESSAGE_ID = 9,
|
|
|
|
IV2_NOTIFY_INVALID_SPI =11,
|
|
|
|
IV2_NOTIFY_NO_PROPOSAL_CHOSEN =14,
|
|
|
|
IV2_NOTIFY_INVALID_KE_PAYLOAD =17,
|
|
|
|
IV2_NOTIFY_AUTHENTICATION_FAILED =24,
|
|
|
|
IV2_NOTIFY_SINGLE_PAIR_REQUIRED =34,
|
|
|
|
IV2_NOTIFY_NO_ADDITIONAL_SAS =35,
|
|
|
|
IV2_NOTIFY_INTERNAL_ADDRESS_FAILURE =36,
|
|
|
|
IV2_NOTIFY_FAILED_CP_REQUIRED =37,
|
|
|
|
IV2_NOTIFY_INVALID_SELECTORS =39,
|
|
|
|
IV2_NOTIFY_INITIAL_CONTACT =16384,
|
|
|
|
IV2_NOTIFY_SET_WINDOW_SIZE =16385,
|
|
|
|
IV2_NOTIFY_ADDITIONAL_TS_POSSIBLE =16386,
|
|
|
|
IV2_NOTIFY_IPCOMP_SUPPORTED =16387,
|
|
|
|
IV2_NOTIFY_NAT_DETECTION_SOURCE_IP =16388,
|
|
|
|
IV2_NOTIFY_NAT_DETECTION_DESTINATION_IP =16389,
|
|
|
|
IV2_NOTIFY_COOKIE =16390,
|
|
|
|
IV2_NOTIFY_USE_TRANSPORT_MODE =16391,
|
|
|
|
IV2_NOTIFY_HTTP_CERT_LOOKUP_SUPPORTED =16392,
|
|
|
|
IV2_NOTIFY_REKEY_SA =16393,
|
|
|
|
IV2_NOTIFY_ESP_TFC_PADDING_NOT_SUPPORTED =16394,
|
|
|
|
IV2_NOTIFY_NON_FIRST_FRAGMENTS_ALSO =16395
|
|
|
|
};
|
|
|
|
|
|
|
|
struct notify_messages {
|
|
|
|
uint16_t type;
|
|
|
|
char *msg;
|
|
|
|
};
|
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
/* 3.8 Authentication Payload */
|
2015-01-06 19:03:11 +00:00
|
|
|
struct ikev2_auth {
|
|
|
|
struct isakmp_gen h;
|
|
|
|
uint8_t auth_method; /* Protocol-ID */
|
|
|
|
uint8_t reserved[3];
|
|
|
|
/* authentication data */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum ikev2_auth_type {
|
|
|
|
IV2_RSA_SIG = 1,
|
|
|
|
IV2_SHARED = 2,
|
2017-01-31 19:17:06 +00:00
|
|
|
IV2_DSS_SIG = 3
|
2015-01-06 19:03:11 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* refer to RFC 2409 */
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
/* isakmp sa structure */
|
|
|
|
struct oakley_sa {
|
|
|
|
uint8_t proto_id; /* OAKLEY */
|
|
|
|
vchar_t *spi; /* spi */
|
|
|
|
uint8_t dhgrp; /* DH; group */
|
|
|
|
uint8_t auth_t; /* method of authentication */
|
|
|
|
uint8_t prf_t; /* type of prf */
|
|
|
|
uint8_t hash_t; /* type of hash */
|
|
|
|
uint8_t enc_t; /* type of cipher */
|
|
|
|
uint8_t life_t; /* type of duration of lifetime */
|
|
|
|
uint32_t ldur; /* life duration */
|
|
|
|
};
|
2000-01-30 00:45:58 +00:00
|
|
|
#endif
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
/* refer to RFC 2407 */
|
|
|
|
|
|
|
|
#define IPSEC_DOI 1
|
|
|
|
|
|
|
|
/* 4.2 IPSEC Situation Definition */
|
|
|
|
#define IPSECDOI_SIT_IDENTITY_ONLY 0x00000001
|
|
|
|
#define IPSECDOI_SIT_SECRECY 0x00000002
|
|
|
|
#define IPSECDOI_SIT_INTEGRITY 0x00000004
|
|
|
|
|
|
|
|
/* 4.4.1 IPSEC Security Protocol Identifiers */
|
|
|
|
/* 4.4.2 IPSEC ISAKMP Transform Values */
|
|
|
|
#define IPSECDOI_PROTO_ISAKMP 1
|
|
|
|
#define IPSECDOI_KEY_IKE 1
|
|
|
|
|
|
|
|
/* 4.4.1 IPSEC Security Protocol Identifiers */
|
|
|
|
#define IPSECDOI_PROTO_IPSEC_AH 2
|
|
|
|
/* 4.4.3 IPSEC AH Transform Values */
|
|
|
|
#define IPSECDOI_AH_MD5 2
|
|
|
|
#define IPSECDOI_AH_SHA 3
|
|
|
|
#define IPSECDOI_AH_DES 4
|
|
|
|
#define IPSECDOI_AH_SHA2_256 5
|
|
|
|
#define IPSECDOI_AH_SHA2_384 6
|
|
|
|
#define IPSECDOI_AH_SHA2_512 7
|
|
|
|
|
|
|
|
/* 4.4.1 IPSEC Security Protocol Identifiers */
|
|
|
|
#define IPSECDOI_PROTO_IPSEC_ESP 3
|
|
|
|
/* 4.4.4 IPSEC ESP Transform Identifiers */
|
|
|
|
#define IPSECDOI_ESP_DES_IV64 1
|
|
|
|
#define IPSECDOI_ESP_DES 2
|
|
|
|
#define IPSECDOI_ESP_3DES 3
|
|
|
|
#define IPSECDOI_ESP_RC5 4
|
|
|
|
#define IPSECDOI_ESP_IDEA 5
|
|
|
|
#define IPSECDOI_ESP_CAST 6
|
|
|
|
#define IPSECDOI_ESP_BLOWFISH 7
|
|
|
|
#define IPSECDOI_ESP_3IDEA 8
|
|
|
|
#define IPSECDOI_ESP_DES_IV32 9
|
|
|
|
#define IPSECDOI_ESP_RC4 10
|
|
|
|
#define IPSECDOI_ESP_NULL 11
|
|
|
|
#define IPSECDOI_ESP_RIJNDAEL 12
|
|
|
|
#define IPSECDOI_ESP_AES 12
|
|
|
|
|
|
|
|
/* 4.4.1 IPSEC Security Protocol Identifiers */
|
|
|
|
#define IPSECDOI_PROTO_IPCOMP 4
|
|
|
|
/* 4.4.5 IPSEC IPCOMP Transform Identifiers */
|
|
|
|
#define IPSECDOI_IPCOMP_OUI 1
|
|
|
|
#define IPSECDOI_IPCOMP_DEFLATE 2
|
|
|
|
#define IPSECDOI_IPCOMP_LZS 3
|
|
|
|
|
|
|
|
/* 4.5 IPSEC Security Association Attributes */
|
|
|
|
#define IPSECDOI_ATTR_SA_LTYPE 1 /* B */
|
|
|
|
#define IPSECDOI_ATTR_SA_LTYPE_DEFAULT 1
|
|
|
|
#define IPSECDOI_ATTR_SA_LTYPE_SEC 1
|
|
|
|
#define IPSECDOI_ATTR_SA_LTYPE_KB 2
|
|
|
|
#define IPSECDOI_ATTR_SA_LDUR 2 /* V */
|
|
|
|
#define IPSECDOI_ATTR_SA_LDUR_DEFAULT 28800 /* 8 hours */
|
|
|
|
#define IPSECDOI_ATTR_GRP_DESC 3 /* B */
|
|
|
|
#define IPSECDOI_ATTR_ENC_MODE 4 /* B */
|
|
|
|
/* default value: host dependent */
|
|
|
|
#define IPSECDOI_ATTR_ENC_MODE_TUNNEL 1
|
|
|
|
#define IPSECDOI_ATTR_ENC_MODE_TRNS 2
|
|
|
|
#define IPSECDOI_ATTR_AUTH 5 /* B */
|
|
|
|
/* 0 means not to use authentication. */
|
|
|
|
#define IPSECDOI_ATTR_AUTH_HMAC_MD5 1
|
|
|
|
#define IPSECDOI_ATTR_AUTH_HMAC_SHA1 2
|
|
|
|
#define IPSECDOI_ATTR_AUTH_DES_MAC 3
|
|
|
|
#define IPSECDOI_ATTR_AUTH_KPDK 4 /*RFC-1826(Key/Pad/Data/Key)*/
|
|
|
|
/*
|
|
|
|
* When negotiating ESP without authentication, the Auth
|
|
|
|
* Algorithm attribute MUST NOT be included in the proposal.
|
|
|
|
* When negotiating ESP without confidentiality, the Auth
|
|
|
|
* Algorithm attribute MUST be included in the proposal and
|
|
|
|
* the ESP transform ID must be ESP_NULL.
|
|
|
|
*/
|
|
|
|
#define IPSECDOI_ATTR_KEY_LENGTH 6 /* B */
|
|
|
|
#define IPSECDOI_ATTR_KEY_ROUNDS 7 /* B */
|
|
|
|
#define IPSECDOI_ATTR_COMP_DICT_SIZE 8 /* B */
|
|
|
|
#define IPSECDOI_ATTR_COMP_PRIVALG 9 /* V */
|
|
|
|
|
|
|
|
/* 4.6.1 Security Association Payload */
|
|
|
|
struct ipsecdoi_sa {
|
|
|
|
struct isakmp_gen h;
|
|
|
|
uint32_t doi; /* Domain of Interpretation */
|
|
|
|
uint32_t sit; /* Situation */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct ipsecdoi_secrecy_h {
|
|
|
|
uint16_t len;
|
|
|
|
uint16_t reserved;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* 4.6.2.1 Identification Type Values */
|
|
|
|
struct ipsecdoi_id {
|
|
|
|
struct isakmp_gen h;
|
|
|
|
uint8_t type; /* ID Type */
|
|
|
|
uint8_t proto_id; /* Protocol ID */
|
|
|
|
uint16_t port; /* Port */
|
|
|
|
/* Identification Data */
|
|
|
|
};
|
|
|
|
|
|
|
|
#define IPSECDOI_ID_IPV4_ADDR 1
|
|
|
|
#define IPSECDOI_ID_FQDN 2
|
|
|
|
#define IPSECDOI_ID_USER_FQDN 3
|
|
|
|
#define IPSECDOI_ID_IPV4_ADDR_SUBNET 4
|
|
|
|
#define IPSECDOI_ID_IPV6_ADDR 5
|
|
|
|
#define IPSECDOI_ID_IPV6_ADDR_SUBNET 6
|
|
|
|
#define IPSECDOI_ID_IPV4_ADDR_RANGE 7
|
|
|
|
#define IPSECDOI_ID_IPV6_ADDR_RANGE 8
|
|
|
|
#define IPSECDOI_ID_DER_ASN1_DN 9
|
|
|
|
#define IPSECDOI_ID_DER_ASN1_GN 10
|
|
|
|
#define IPSECDOI_ID_KEY_ID 11
|
|
|
|
|
|
|
|
/* 4.6.3 IPSEC DOI Notify Message Types */
|
|
|
|
/* Notify Messages - Status Types */
|
|
|
|
#define IPSECDOI_NTYPE_RESPONDER_LIFETIME 24576
|
|
|
|
#define IPSECDOI_NTYPE_REPLAY_STATUS 24577
|
|
|
|
#define IPSECDOI_NTYPE_INITIAL_CONTACT 24578
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
#define DECLARE_PRINTER(func) static const u_char *ike##func##_print( \
|
|
|
|
netdissect_options *ndo, u_char tpay, \
|
|
|
|
const struct isakmp_gen *ext, \
|
|
|
|
u_int item_len, \
|
|
|
|
const u_char *end_pointer, \
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase,\
|
|
|
|
uint32_t doi0, \
|
|
|
|
uint32_t proto0, int depth)
|
2009-03-21 16:23:46 +00:00
|
|
|
|
|
|
|
DECLARE_PRINTER(v1_sa);
|
|
|
|
DECLARE_PRINTER(v1_p);
|
|
|
|
DECLARE_PRINTER(v1_t);
|
|
|
|
DECLARE_PRINTER(v1_ke);
|
|
|
|
DECLARE_PRINTER(v1_id);
|
|
|
|
DECLARE_PRINTER(v1_cert);
|
|
|
|
DECLARE_PRINTER(v1_cr);
|
|
|
|
DECLARE_PRINTER(v1_sig);
|
|
|
|
DECLARE_PRINTER(v1_hash);
|
|
|
|
DECLARE_PRINTER(v1_nonce);
|
|
|
|
DECLARE_PRINTER(v1_n);
|
|
|
|
DECLARE_PRINTER(v1_d);
|
|
|
|
DECLARE_PRINTER(v1_vid);
|
|
|
|
|
|
|
|
DECLARE_PRINTER(v2_sa);
|
|
|
|
DECLARE_PRINTER(v2_ke);
|
|
|
|
DECLARE_PRINTER(v2_ID);
|
|
|
|
DECLARE_PRINTER(v2_cert);
|
|
|
|
DECLARE_PRINTER(v2_cr);
|
|
|
|
DECLARE_PRINTER(v2_auth);
|
|
|
|
DECLARE_PRINTER(v2_nonce);
|
|
|
|
DECLARE_PRINTER(v2_n);
|
|
|
|
DECLARE_PRINTER(v2_d);
|
|
|
|
DECLARE_PRINTER(v2_vid);
|
|
|
|
DECLARE_PRINTER(v2_TS);
|
|
|
|
DECLARE_PRINTER(v2_cp);
|
|
|
|
DECLARE_PRINTER(v2_eap);
|
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
static const u_char *ikev2_e_print(netdissect_options *ndo,
|
|
|
|
struct isakmp *base,
|
|
|
|
u_char tpay,
|
|
|
|
const struct isakmp_gen *ext,
|
2015-01-06 19:03:11 +00:00
|
|
|
u_int item_len,
|
|
|
|
const u_char *end_pointer,
|
|
|
|
uint32_t phase,
|
|
|
|
uint32_t doi0,
|
|
|
|
uint32_t proto0, int depth);
|
2010-10-28 16:23:25 +00:00
|
|
|
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
static const u_char *ike_sub0_print(netdissect_options *ndo,u_char, const struct isakmp_gen *,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *, uint32_t, uint32_t, uint32_t, int);
|
2009-03-21 16:23:46 +00:00
|
|
|
static const u_char *ikev1_sub_print(netdissect_options *ndo,u_char, const struct isakmp_gen *,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *, uint32_t, uint32_t, uint32_t, int);
|
2009-03-21 16:23:46 +00:00
|
|
|
|
|
|
|
static const u_char *ikev2_sub_print(netdissect_options *ndo,
|
2010-10-28 16:23:25 +00:00
|
|
|
struct isakmp *base,
|
2009-03-21 16:23:46 +00:00
|
|
|
u_char np, const struct isakmp_gen *ext,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep, uint32_t phase,
|
|
|
|
uint32_t doi, uint32_t proto,
|
2009-03-21 16:23:46 +00:00
|
|
|
int depth);
|
|
|
|
|
|
|
|
|
2001-04-03 07:45:48 +00:00
|
|
|
static char *numstr(int);
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
static void
|
|
|
|
ikev1_print(netdissect_options *ndo,
|
|
|
|
const u_char *bp, u_int length,
|
|
|
|
const u_char *bp2, struct isakmp *base);
|
|
|
|
|
2000-01-30 00:45:58 +00:00
|
|
|
#define MAXINITIATORS 20
|
2017-01-31 19:17:06 +00:00
|
|
|
static int ninitiator = 0;
|
2015-01-06 19:03:11 +00:00
|
|
|
union inaddr_u {
|
|
|
|
struct in_addr in4;
|
|
|
|
struct in6_addr in6;
|
|
|
|
};
|
2017-01-31 19:17:06 +00:00
|
|
|
static struct {
|
2000-01-30 00:45:58 +00:00
|
|
|
cookie_t initiator;
|
2015-01-06 19:03:11 +00:00
|
|
|
u_int version;
|
|
|
|
union inaddr_u iaddr;
|
|
|
|
union inaddr_u raddr;
|
2000-01-30 00:45:58 +00:00
|
|
|
} cookiecache[MAXINITIATORS];
|
|
|
|
|
|
|
|
/* protocol id */
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *protoidstr[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
NULL, "isakmp", "ipsec-ah", "ipsec-esp", "ipcomp",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* isakmp->np */
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *npstr[] = {
|
2009-03-21 16:23:46 +00:00
|
|
|
"none", "sa", "p", "t", "ke", "id", "cert", "cr", "hash", /* 0 - 8 */
|
|
|
|
"sig", "nonce", "n", "d", "vid", /* 9 - 13 */
|
|
|
|
"pay14", "pay15", "pay16", "pay17", "pay18", /* 14- 18 */
|
|
|
|
"pay19", "pay20", "pay21", "pay22", "pay23", /* 19- 23 */
|
|
|
|
"pay24", "pay25", "pay26", "pay27", "pay28", /* 24- 28 */
|
|
|
|
"pay29", "pay30", "pay31", "pay32", /* 29- 32 */
|
|
|
|
"v2sa", "v2ke", "v2IDi", "v2IDr", "v2cert",/* 33- 37 */
|
|
|
|
"v2cr", "v2auth","v2nonce", "v2n", "v2d", /* 38- 42 */
|
|
|
|
"v2vid", "v2TSi", "v2TSr", "v2e", "v2cp", /* 43- 47 */
|
|
|
|
"v2eap", /* 48 */
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* isakmp->np */
|
2015-01-06 19:03:11 +00:00
|
|
|
static const u_char *(*npfunc[])(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len,
|
|
|
|
const u_char *end_pointer,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase,
|
|
|
|
uint32_t doi0,
|
|
|
|
uint32_t proto0, int depth) = {
|
2000-01-30 00:45:58 +00:00
|
|
|
NULL,
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_sa_print,
|
|
|
|
ikev1_p_print,
|
|
|
|
ikev1_t_print,
|
|
|
|
ikev1_ke_print,
|
|
|
|
ikev1_id_print,
|
|
|
|
ikev1_cert_print,
|
|
|
|
ikev1_cr_print,
|
|
|
|
ikev1_hash_print,
|
|
|
|
ikev1_sig_print,
|
|
|
|
ikev1_nonce_print,
|
|
|
|
ikev1_n_print,
|
|
|
|
ikev1_d_print,
|
|
|
|
ikev1_vid_print, /* 13 */
|
|
|
|
NULL, NULL, NULL, NULL, NULL, /* 14- 18 */
|
|
|
|
NULL, NULL, NULL, NULL, NULL, /* 19- 23 */
|
|
|
|
NULL, NULL, NULL, NULL, NULL, /* 24- 28 */
|
|
|
|
NULL, NULL, NULL, NULL, /* 29- 32 */
|
|
|
|
ikev2_sa_print, /* 33 */
|
|
|
|
ikev2_ke_print, /* 34 */
|
|
|
|
ikev2_ID_print, /* 35 */
|
|
|
|
ikev2_ID_print, /* 36 */
|
|
|
|
ikev2_cert_print, /* 37 */
|
|
|
|
ikev2_cr_print, /* 38 */
|
|
|
|
ikev2_auth_print, /* 39 */
|
|
|
|
ikev2_nonce_print, /* 40 */
|
|
|
|
ikev2_n_print, /* 41 */
|
|
|
|
ikev2_d_print, /* 42 */
|
|
|
|
ikev2_vid_print, /* 43 */
|
|
|
|
ikev2_TS_print, /* 44 */
|
|
|
|
ikev2_TS_print, /* 45 */
|
2010-10-28 16:23:25 +00:00
|
|
|
NULL, /* ikev2_e_print,*/ /* 46 - special */
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_cp_print, /* 47 */
|
|
|
|
ikev2_eap_print, /* 48 */
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* isakmp->etype */
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *etypestr[] = {
|
2009-03-21 16:23:46 +00:00
|
|
|
/* IKEv1 exchange types */
|
|
|
|
"none", "base", "ident", "auth", "agg", "inf", NULL, NULL, /* 0-7 */
|
|
|
|
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 8-15 */
|
|
|
|
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 16-23 */
|
|
|
|
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 24-31 */
|
|
|
|
"oakley-quick", "oakley-newgroup", /* 32-33 */
|
|
|
|
/* IKEv2 exchange types */
|
|
|
|
"ikev2_init", "ikev2_auth", "child_sa", "inf2" /* 34-37 */
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
#define STR_OR_ID(x, tab) \
|
|
|
|
(((x) < sizeof(tab)/sizeof(tab[0]) && tab[(x)]) ? tab[(x)] : numstr(x))
|
|
|
|
#define PROTOIDSTR(x) STR_OR_ID(x, protoidstr)
|
|
|
|
#define NPSTR(x) STR_OR_ID(x, npstr)
|
|
|
|
#define ETYPESTR(x) STR_OR_ID(x, etypestr)
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
#define CHECKLEN(p, np) \
|
2017-01-31 19:17:06 +00:00
|
|
|
if (ep < (const u_char *)(p)) { \
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(np))); \
|
|
|
|
goto done; \
|
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2000-01-30 00:45:58 +00:00
|
|
|
#define NPFUNC(x) \
|
|
|
|
(((x) < sizeof(npfunc)/sizeof(npfunc[0]) && npfunc[(x)]) \
|
|
|
|
? npfunc[(x)] : NULL)
|
|
|
|
|
|
|
|
static int
|
2017-01-31 19:17:06 +00:00
|
|
|
iszero(const u_char *p, size_t l)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
|
|
|
while (l--) {
|
|
|
|
if (*p++)
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* find cookie from initiator cache */
|
|
|
|
static int
|
|
|
|
cookie_find(cookie_t *in)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < MAXINITIATORS; i++) {
|
|
|
|
if (memcmp(in, &cookiecache[i].initiator, sizeof(*in)) == 0)
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* record initiator */
|
|
|
|
static void
|
|
|
|
cookie_record(cookie_t *in, const u_char *bp2)
|
|
|
|
{
|
|
|
|
int i;
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct ip *ip;
|
|
|
|
const struct ip6_hdr *ip6;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
|
|
|
i = cookie_find(in);
|
|
|
|
if (0 <= i) {
|
|
|
|
ninitiator = (i + 1) % MAXINITIATORS;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
ip = (const struct ip *)bp2;
|
2001-04-03 07:45:48 +00:00
|
|
|
switch (IP_V(ip)) {
|
2000-01-30 00:45:58 +00:00
|
|
|
case 4:
|
2015-01-06 19:03:11 +00:00
|
|
|
cookiecache[ninitiator].version = 4;
|
|
|
|
UNALIGNED_MEMCPY(&cookiecache[ninitiator].iaddr.in4, &ip->ip_src, sizeof(struct in_addr));
|
|
|
|
UNALIGNED_MEMCPY(&cookiecache[ninitiator].raddr.in4, &ip->ip_dst, sizeof(struct in_addr));
|
2000-01-30 00:45:58 +00:00
|
|
|
break;
|
|
|
|
case 6:
|
2017-01-31 19:17:06 +00:00
|
|
|
ip6 = (const struct ip6_hdr *)bp2;
|
2015-01-06 19:03:11 +00:00
|
|
|
cookiecache[ninitiator].version = 6;
|
|
|
|
UNALIGNED_MEMCPY(&cookiecache[ninitiator].iaddr.in6, &ip6->ip6_src, sizeof(struct in6_addr));
|
|
|
|
UNALIGNED_MEMCPY(&cookiecache[ninitiator].raddr.in6, &ip6->ip6_dst, sizeof(struct in6_addr));
|
2000-01-30 00:45:58 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return;
|
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&cookiecache[ninitiator].initiator, in, sizeof(*in));
|
2000-01-30 00:45:58 +00:00
|
|
|
ninitiator = (ninitiator + 1) % MAXINITIATORS;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define cookie_isinitiator(x, y) cookie_sidecheck((x), (y), 1)
|
|
|
|
#define cookie_isresponder(x, y) cookie_sidecheck((x), (y), 0)
|
|
|
|
static int
|
|
|
|
cookie_sidecheck(int i, const u_char *bp2, int initiator)
|
|
|
|
{
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct ip *ip;
|
|
|
|
const struct ip6_hdr *ip6;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
ip = (const struct ip *)bp2;
|
2001-04-03 07:45:48 +00:00
|
|
|
switch (IP_V(ip)) {
|
2000-01-30 00:45:58 +00:00
|
|
|
case 4:
|
2015-01-06 19:03:11 +00:00
|
|
|
if (cookiecache[i].version != 4)
|
|
|
|
return 0;
|
|
|
|
if (initiator) {
|
|
|
|
if (UNALIGNED_MEMCMP(&ip->ip_src, &cookiecache[i].iaddr.in4, sizeof(struct in_addr)) == 0)
|
|
|
|
return 1;
|
|
|
|
} else {
|
|
|
|
if (UNALIGNED_MEMCMP(&ip->ip_src, &cookiecache[i].raddr.in4, sizeof(struct in_addr)) == 0)
|
|
|
|
return 1;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
break;
|
|
|
|
case 6:
|
2015-01-06 19:03:11 +00:00
|
|
|
if (cookiecache[i].version != 6)
|
|
|
|
return 0;
|
2017-01-31 19:17:06 +00:00
|
|
|
ip6 = (const struct ip6_hdr *)bp2;
|
2015-01-06 19:03:11 +00:00
|
|
|
if (initiator) {
|
|
|
|
if (UNALIGNED_MEMCMP(&ip6->ip6_src, &cookiecache[i].iaddr.in6, sizeof(struct in6_addr)) == 0)
|
|
|
|
return 1;
|
|
|
|
} else {
|
|
|
|
if (UNALIGNED_MEMCMP(&ip6->ip6_src, &cookiecache[i].raddr.in6, sizeof(struct in6_addr)) == 0)
|
|
|
|
return 1;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
break;
|
|
|
|
default:
|
2015-01-06 19:03:11 +00:00
|
|
|
break;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
static void
|
2017-01-31 19:17:06 +00:00
|
|
|
hexprint(netdissect_options *ndo, const uint8_t *loc, size_t len)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2017-01-31 19:17:06 +00:00
|
|
|
const uint8_t *p;
|
2004-03-31 09:17:26 +00:00
|
|
|
size_t i;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = loc;
|
2000-01-30 00:45:58 +00:00
|
|
|
for (i = 0; i < len; i++)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%02x", p[i] & 0xff));
|
2010-10-28 16:23:25 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2017-01-31 19:17:06 +00:00
|
|
|
rawprint(netdissect_options *ndo, const uint8_t *loc, size_t len)
|
2010-10-28 16:23:25 +00:00
|
|
|
{
|
|
|
|
ND_TCHECK2(*loc, len);
|
|
|
|
|
|
|
|
hexprint(ndo, loc, len);
|
2004-03-31 09:17:26 +00:00
|
|
|
return 1;
|
2004-01-13 17:28:59 +00:00
|
|
|
trunc:
|
2004-03-31 09:17:26 +00:00
|
|
|
return 0;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
/*
|
|
|
|
* returns false if we run out of data buffer
|
|
|
|
*/
|
2015-01-06 19:03:11 +00:00
|
|
|
static int ike_show_somedata(netdissect_options *ndo,
|
2009-03-21 16:23:46 +00:00
|
|
|
const u_char *cp, const u_char *ep)
|
|
|
|
{
|
|
|
|
/* there is too much data, just show some of it */
|
|
|
|
const u_char *end = ep - 20;
|
|
|
|
int elen = 20;
|
|
|
|
int len = ep - cp;
|
|
|
|
if(len > 10) {
|
|
|
|
len = 10;
|
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
/* really shouldn't happen because of above */
|
|
|
|
if(end < cp + len) {
|
|
|
|
end = cp+len;
|
|
|
|
elen = ep - end;
|
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," data=("));
|
2017-01-31 19:17:06 +00:00
|
|
|
if(!rawprint(ndo, (const uint8_t *)(cp), len)) goto trunc;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo, "..."));
|
|
|
|
if(elen) {
|
2017-01-31 19:17:06 +00:00
|
|
|
if(!rawprint(ndo, (const uint8_t *)(end), elen)) goto trunc;
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
trunc:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2000-01-30 00:45:58 +00:00
|
|
|
struct attrmap {
|
2004-03-31 09:17:26 +00:00
|
|
|
const char *type;
|
|
|
|
u_int nvalue;
|
|
|
|
const char *value[30]; /*XXX*/
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_attrmap_print(netdissect_options *ndo,
|
2017-09-18 04:10:54 +00:00
|
|
|
const u_char *p, const u_char *ep2,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct attrmap *map, size_t nmap)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
|
|
|
int totlen;
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t t, v;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK(p[0]);
|
2000-01-30 00:45:58 +00:00
|
|
|
if (p[0] & 0x80)
|
|
|
|
totlen = 4;
|
2017-09-18 04:10:54 +00:00
|
|
|
else {
|
|
|
|
ND_TCHECK_16BITS(&p[2]);
|
2015-01-06 19:03:11 +00:00
|
|
|
totlen = 4 + EXTRACT_16BITS(&p[2]);
|
2017-09-18 04:10:54 +00:00
|
|
|
}
|
|
|
|
if (ep2 < p + totlen) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"[|attr]"));
|
2017-09-18 04:10:54 +00:00
|
|
|
return ep2 + 1;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK_16BITS(&p[0]);
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"("));
|
2015-01-06 19:03:11 +00:00
|
|
|
t = EXTRACT_16BITS(&p[0]) & 0x7fff;
|
2000-01-30 00:45:58 +00:00
|
|
|
if (map && t < nmap && map[t].type)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"type=%s ", map[t].type));
|
2000-01-30 00:45:58 +00:00
|
|
|
else
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"type=#%d ", t));
|
2000-01-30 00:45:58 +00:00
|
|
|
if (p[0] & 0x80) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"value="));
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK_16BITS(&p[2]);
|
2015-01-06 19:03:11 +00:00
|
|
|
v = EXTRACT_16BITS(&p[2]);
|
2000-01-30 00:45:58 +00:00
|
|
|
if (map && t < nmap && v < map[t].nvalue && map[t].value[v])
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s", map[t].value[v]));
|
2017-09-18 04:10:54 +00:00
|
|
|
else {
|
|
|
|
if (!rawprint(ndo, (const uint8_t *)&p[2], 2)) {
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
goto trunc;
|
|
|
|
}
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
} else {
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_PRINT((ndo,"len=%d value=", totlen - 4));
|
|
|
|
if (!rawprint(ndo, (const uint8_t *)&p[4], totlen - 4)) {
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
goto trunc;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,")"));
|
2000-01-30 00:45:58 +00:00
|
|
|
return p + totlen;
|
2017-09-18 04:10:54 +00:00
|
|
|
|
|
|
|
trunc:
|
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2017-09-18 04:10:54 +00:00
|
|
|
ikev1_attr_print(netdissect_options *ndo, const u_char *p, const u_char *ep2)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
|
|
|
int totlen;
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t t;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK(p[0]);
|
2000-01-30 00:45:58 +00:00
|
|
|
if (p[0] & 0x80)
|
|
|
|
totlen = 4;
|
2017-09-18 04:10:54 +00:00
|
|
|
else {
|
|
|
|
ND_TCHECK_16BITS(&p[2]);
|
2015-01-06 19:03:11 +00:00
|
|
|
totlen = 4 + EXTRACT_16BITS(&p[2]);
|
2017-09-18 04:10:54 +00:00
|
|
|
}
|
|
|
|
if (ep2 < p + totlen) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"[|attr]"));
|
2017-09-18 04:10:54 +00:00
|
|
|
return ep2 + 1;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK_16BITS(&p[0]);
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"("));
|
2015-01-06 19:03:11 +00:00
|
|
|
t = EXTRACT_16BITS(&p[0]) & 0x7fff;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"type=#%d ", t));
|
2000-01-30 00:45:58 +00:00
|
|
|
if (p[0] & 0x80) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"value="));
|
2015-01-06 19:03:11 +00:00
|
|
|
t = p[2];
|
2017-09-18 04:10:54 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)&p[2], 2)) {
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
goto trunc;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
} else {
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_PRINT((ndo,"len=%d value=", totlen - 4));
|
|
|
|
if (!rawprint(ndo, (const uint8_t *)&p[4], totlen - 4)) {
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
goto trunc;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,")"));
|
2000-01-30 00:45:58 +00:00
|
|
|
return p + totlen;
|
2017-09-18 04:10:54 +00:00
|
|
|
|
|
|
|
trunc:
|
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_sa_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext,
|
2005-05-29 18:17:16 +00:00
|
|
|
u_int item_len _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep, uint32_t phase, uint32_t doi0 _U_,
|
|
|
|
uint32_t proto0, int depth)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct ikev1_pl_sa *p;
|
|
|
|
struct ikev1_pl_sa sa;
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t doi, sit, ident;
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *cp, *np;
|
2000-01-30 00:45:58 +00:00
|
|
|
int t;
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SA)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_sa *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&sa, ext, sizeof(sa));
|
2001-04-03 07:45:48 +00:00
|
|
|
doi = ntohl(sa.doi);
|
|
|
|
sit = ntohl(sa.sit);
|
2000-01-30 00:45:58 +00:00
|
|
|
if (doi != 1) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," doi=%d", doi));
|
2015-01-06 19:03:11 +00:00
|
|
|
ND_PRINT((ndo," situation=%u", (uint32_t)ntohl(sa.sit)));
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)(p + 1);
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," doi=ipsec"));
|
|
|
|
ND_PRINT((ndo," situation="));
|
2000-01-30 00:45:58 +00:00
|
|
|
t = 0;
|
2001-04-03 07:45:48 +00:00
|
|
|
if (sit & 0x01) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"identity"));
|
2000-01-30 00:45:58 +00:00
|
|
|
t++;
|
|
|
|
}
|
2001-04-03 07:45:48 +00:00
|
|
|
if (sit & 0x02) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%ssecrecy", t ? "+" : ""));
|
2000-01-30 00:45:58 +00:00
|
|
|
t++;
|
|
|
|
}
|
2001-04-03 07:45:48 +00:00
|
|
|
if (sit & 0x04)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%sintegrity", t ? "+" : ""));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
np = (const u_char *)ext + sizeof(sa);
|
2001-04-03 07:45:48 +00:00
|
|
|
if (sit != 0x01) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK2(*(ext + 1), sizeof(ident));
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&ident, ext + 1, sizeof(ident));
|
|
|
|
ND_PRINT((ndo," ident=%u", (uint32_t)ntohl(ident)));
|
2001-04-03 07:45:48 +00:00
|
|
|
np += sizeof(ident);
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
ext = (const struct isakmp_gen *)np;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0,
|
2004-03-31 09:17:26 +00:00
|
|
|
depth);
|
2000-01-30 00:45:58 +00:00
|
|
|
|
|
|
|
return cp;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SA)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_p_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext, u_int item_len _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep, uint32_t phase, uint32_t doi0,
|
|
|
|
uint32_t proto0 _U_, int depth)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct ikev1_pl_p *p;
|
|
|
|
struct ikev1_pl_p prop;
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *cp;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_P)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_p *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&prop, ext, sizeof(prop));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," #%d protoid=%s transform=%d",
|
|
|
|
prop.p_no, PROTOIDSTR(prop.prot_id), prop.num_t));
|
2001-04-03 07:45:48 +00:00
|
|
|
if (prop.spi_size) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," spi="));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(p + 1), prop.spi_size))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
ext = (const struct isakmp_gen *)((const u_char *)(p + 1) + prop.spi_size);
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
|
|
|
|
prop.prot_id, depth);
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2000-01-30 00:45:58 +00:00
|
|
|
return cp;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
static const char *ikev1_p_map[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
NULL, "ike",
|
|
|
|
};
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
static const char *ikev2_t_type_map[]={
|
|
|
|
NULL, "encr", "prf", "integ", "dh", "esn"
|
|
|
|
};
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *ah_p_map[] = {
|
2001-04-03 07:45:48 +00:00
|
|
|
NULL, "(reserved)", "md5", "sha", "1des",
|
|
|
|
"sha2-256", "sha2-384", "sha2-512",
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
static const char *prf_p_map[] = {
|
|
|
|
NULL, "hmac-md5", "hmac-sha", "hmac-tiger",
|
|
|
|
"aes128_xcbc"
|
|
|
|
};
|
|
|
|
|
|
|
|
static const char *integ_p_map[] = {
|
|
|
|
NULL, "hmac-md5", "hmac-sha", "dec-mac",
|
|
|
|
"kpdk-md5", "aes-xcbc"
|
|
|
|
};
|
|
|
|
|
|
|
|
static const char *esn_p_map[] = {
|
|
|
|
"no-esn", "esn"
|
|
|
|
};
|
|
|
|
|
|
|
|
static const char *dh_p_map[] = {
|
|
|
|
NULL, "modp768",
|
|
|
|
"modp1024", /* group 2 */
|
|
|
|
"EC2N 2^155", /* group 3 */
|
|
|
|
"EC2N 2^185", /* group 4 */
|
|
|
|
"modp1536", /* group 5 */
|
|
|
|
"iana-grp06", "iana-grp07", /* reserved */
|
|
|
|
"iana-grp08", "iana-grp09",
|
|
|
|
"iana-grp10", "iana-grp11",
|
|
|
|
"iana-grp12", "iana-grp13",
|
|
|
|
"modp2048", /* group 14 */
|
|
|
|
"modp3072", /* group 15 */
|
|
|
|
"modp4096", /* group 16 */
|
|
|
|
"modp6144", /* group 17 */
|
|
|
|
"modp8192", /* group 18 */
|
|
|
|
};
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *esp_p_map[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
NULL, "1des-iv64", "1des", "3des", "rc5", "idea", "cast",
|
2001-04-03 07:45:48 +00:00
|
|
|
"blowfish", "3idea", "1des-iv32", "rc4", "null", "aes"
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *ipcomp_p_map[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
NULL, "oui", "deflate", "lzs",
|
|
|
|
};
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
static const struct attrmap ipsec_t_map[] = {
|
2004-03-31 09:17:26 +00:00
|
|
|
{ NULL, 0, { NULL } },
|
2000-01-30 00:45:58 +00:00
|
|
|
{ "lifetype", 3, { NULL, "sec", "kb", }, },
|
2004-03-31 09:17:26 +00:00
|
|
|
{ "life", 0, { NULL } },
|
2009-03-21 16:23:46 +00:00
|
|
|
{ "group desc", 18, { NULL, "modp768",
|
|
|
|
"modp1024", /* group 2 */
|
|
|
|
"EC2N 2^155", /* group 3 */
|
|
|
|
"EC2N 2^185", /* group 4 */
|
|
|
|
"modp1536", /* group 5 */
|
|
|
|
"iana-grp06", "iana-grp07", /* reserved */
|
|
|
|
"iana-grp08", "iana-grp09",
|
|
|
|
"iana-grp10", "iana-grp11",
|
|
|
|
"iana-grp12", "iana-grp13",
|
|
|
|
"modp2048", /* group 14 */
|
|
|
|
"modp3072", /* group 15 */
|
|
|
|
"modp4096", /* group 16 */
|
|
|
|
"modp6144", /* group 17 */
|
|
|
|
"modp8192", /* group 18 */
|
|
|
|
}, },
|
2000-01-30 00:45:58 +00:00
|
|
|
{ "enc mode", 3, { NULL, "tunnel", "transport", }, },
|
|
|
|
{ "auth", 5, { NULL, "hmac-md5", "hmac-sha1", "1des-mac", "keyed", }, },
|
2004-03-31 09:17:26 +00:00
|
|
|
{ "keylen", 0, { NULL } },
|
|
|
|
{ "rounds", 0, { NULL } },
|
|
|
|
{ "dictsize", 0, { NULL } },
|
|
|
|
{ "privalg", 0, { NULL } },
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
static const struct attrmap encr_t_map[] = {
|
2009-03-21 16:23:46 +00:00
|
|
|
{ NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 0, 1 */
|
|
|
|
{ NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 2, 3 */
|
|
|
|
{ NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 4, 5 */
|
|
|
|
{ NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 6, 7 */
|
|
|
|
{ NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 8, 9 */
|
|
|
|
{ NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 10,11*/
|
|
|
|
{ NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 12,13*/
|
|
|
|
{ "keylen", 14, { NULL }},
|
|
|
|
};
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
static const struct attrmap oakley_t_map[] = {
|
2004-03-31 09:17:26 +00:00
|
|
|
{ NULL, 0, { NULL } },
|
2001-04-03 07:45:48 +00:00
|
|
|
{ "enc", 8, { NULL, "1des", "idea", "blowfish", "rc5",
|
|
|
|
"3des", "cast", "aes", }, },
|
|
|
|
{ "hash", 7, { NULL, "md5", "sha1", "tiger",
|
|
|
|
"sha2-256", "sha2-384", "sha2-512", }, },
|
2000-01-30 00:45:58 +00:00
|
|
|
{ "auth", 6, { NULL, "preshared", "dss", "rsa sig", "rsa enc",
|
|
|
|
"rsa enc revised", }, },
|
2009-03-21 16:23:46 +00:00
|
|
|
{ "group desc", 18, { NULL, "modp768",
|
|
|
|
"modp1024", /* group 2 */
|
|
|
|
"EC2N 2^155", /* group 3 */
|
|
|
|
"EC2N 2^185", /* group 4 */
|
|
|
|
"modp1536", /* group 5 */
|
|
|
|
"iana-grp06", "iana-grp07", /* reserved */
|
|
|
|
"iana-grp08", "iana-grp09",
|
|
|
|
"iana-grp10", "iana-grp11",
|
|
|
|
"iana-grp12", "iana-grp13",
|
|
|
|
"modp2048", /* group 14 */
|
|
|
|
"modp3072", /* group 15 */
|
|
|
|
"modp4096", /* group 16 */
|
|
|
|
"modp6144", /* group 17 */
|
|
|
|
"modp8192", /* group 18 */
|
|
|
|
}, },
|
2000-01-30 00:45:58 +00:00
|
|
|
{ "group type", 4, { NULL, "MODP", "ECP", "EC2N", }, },
|
2004-03-31 09:17:26 +00:00
|
|
|
{ "group prime", 0, { NULL } },
|
|
|
|
{ "group gen1", 0, { NULL } },
|
|
|
|
{ "group gen2", 0, { NULL } },
|
|
|
|
{ "group curve A", 0, { NULL } },
|
|
|
|
{ "group curve B", 0, { NULL } },
|
2000-01-30 00:45:58 +00:00
|
|
|
{ "lifetype", 3, { NULL, "sec", "kb", }, },
|
2004-03-31 09:17:26 +00:00
|
|
|
{ "lifeduration", 0, { NULL } },
|
|
|
|
{ "prf", 0, { NULL } },
|
|
|
|
{ "keylen", 0, { NULL } },
|
|
|
|
{ "field", 0, { NULL } },
|
|
|
|
{ "order", 0, { NULL } },
|
2000-01-30 00:45:58 +00:00
|
|
|
};
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_t_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext, u_int item_len,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep, uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct ikev1_pl_t *p;
|
|
|
|
struct ikev1_pl_t t;
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *cp;
|
|
|
|
const char *idstr;
|
|
|
|
const struct attrmap *map;
|
2000-01-30 00:45:58 +00:00
|
|
|
size_t nmap;
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *ep2;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_T)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_t *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&t, ext, sizeof(t));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
|
|
|
switch (proto) {
|
|
|
|
case 1:
|
2009-03-21 16:23:46 +00:00
|
|
|
idstr = STR_OR_ID(t.t_id, ikev1_p_map);
|
2000-01-30 00:45:58 +00:00
|
|
|
map = oakley_t_map;
|
|
|
|
nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
|
|
|
|
break;
|
|
|
|
case 2:
|
2001-04-03 07:45:48 +00:00
|
|
|
idstr = STR_OR_ID(t.t_id, ah_p_map);
|
2000-01-30 00:45:58 +00:00
|
|
|
map = ipsec_t_map;
|
|
|
|
nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]);
|
|
|
|
break;
|
|
|
|
case 3:
|
2001-04-03 07:45:48 +00:00
|
|
|
idstr = STR_OR_ID(t.t_id, esp_p_map);
|
2000-01-30 00:45:58 +00:00
|
|
|
map = ipsec_t_map;
|
|
|
|
nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]);
|
|
|
|
break;
|
|
|
|
case 4:
|
2001-04-03 07:45:48 +00:00
|
|
|
idstr = STR_OR_ID(t.t_id, ipcomp_p_map);
|
2000-01-30 00:45:58 +00:00
|
|
|
map = ipsec_t_map;
|
|
|
|
nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
idstr = NULL;
|
|
|
|
map = NULL;
|
|
|
|
nmap = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (idstr)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," #%d id=%s ", t.t_no, idstr));
|
2000-01-30 00:45:58 +00:00
|
|
|
else
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," #%d id=%d ", t.t_no, t.t_id));
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = (const u_char *)(p + 1);
|
|
|
|
ep2 = (const u_char *)p + item_len;
|
2000-01-30 00:45:58 +00:00
|
|
|
while (cp < ep && cp < ep2) {
|
2017-09-18 04:10:54 +00:00
|
|
|
if (map && nmap)
|
|
|
|
cp = ikev1_attrmap_print(ndo, cp, ep2, map, nmap);
|
|
|
|
else
|
|
|
|
cp = ikev1_attr_print(ndo, cp, ep2);
|
|
|
|
if (cp == NULL)
|
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
if (ep < ep2)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"..."));
|
2000-01-30 00:45:58 +00:00
|
|
|
return cp;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_ke_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext, u_int item_len _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep _U_, uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2001-04-03 07:45:48 +00:00
|
|
|
struct isakmp_gen e;
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_KE)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," key len=%d", ntohs(e.len) - 4));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_KE)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_id_print(netdissect_options *ndo, u_char tpay _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
const struct isakmp_gen *ext, u_int item_len,
|
|
|
|
const u_char *ep _U_, uint32_t phase, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
|
|
|
#define USE_IPSECDOI_IN_PHASE1 1
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct ikev1_pl_id *p;
|
|
|
|
struct ikev1_pl_id id;
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *idtypestr[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
"IPv4", "IPv4net", "IPv6", "IPv6net",
|
|
|
|
};
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *ipsecidtypestr[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
NULL, "IPv4", "FQDN", "user FQDN", "IPv4net", "IPv6",
|
|
|
|
"IPv6net", "IPv4range", "IPv6range", "ASN1 DN", "ASN1 GN",
|
|
|
|
"keyid",
|
|
|
|
};
|
|
|
|
int len;
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *data;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_ID)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_id *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&id, ext, sizeof(id));
|
2004-03-31 09:17:26 +00:00
|
|
|
if (sizeof(*p) < item_len) {
|
2017-01-31 19:17:06 +00:00
|
|
|
data = (const u_char *)(p + 1);
|
2004-03-31 09:17:26 +00:00
|
|
|
len = item_len - sizeof(*p);
|
|
|
|
} else {
|
2000-01-30 00:45:58 +00:00
|
|
|
data = NULL;
|
2004-03-31 09:17:26 +00:00
|
|
|
len = 0;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
|
|
|
|
#if 0 /*debug*/
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [phase=%d doi=%d proto=%d]", phase, doi, proto));
|
2000-01-30 00:45:58 +00:00
|
|
|
#endif
|
|
|
|
switch (phase) {
|
|
|
|
#ifndef USE_IPSECDOI_IN_PHASE1
|
|
|
|
case 1:
|
|
|
|
#endif
|
|
|
|
default:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," idtype=%s", STR_OR_ID(id.d.id_type, idtypestr)));
|
|
|
|
ND_PRINT((ndo," doi_data=%u",
|
2015-01-06 19:03:11 +00:00
|
|
|
(uint32_t)(ntohl(id.d.doi_data) & 0xffffff)));
|
2000-01-30 00:45:58 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
#ifdef USE_IPSECDOI_IN_PHASE1
|
|
|
|
case 1:
|
|
|
|
#endif
|
|
|
|
case 2:
|
|
|
|
{
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct ipsecdoi_id *doi_p;
|
|
|
|
struct ipsecdoi_id doi_id;
|
2017-09-18 04:10:54 +00:00
|
|
|
const char *p_name;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
doi_p = (const struct ipsecdoi_id *)ext;
|
|
|
|
ND_TCHECK(*doi_p);
|
|
|
|
UNALIGNED_MEMCPY(&doi_id, ext, sizeof(doi_id));
|
|
|
|
ND_PRINT((ndo," idtype=%s", STR_OR_ID(doi_id.type, ipsecidtypestr)));
|
2015-01-06 19:03:11 +00:00
|
|
|
/* A protocol ID of 0 DOES NOT mean IPPROTO_IP! */
|
2017-09-18 04:10:54 +00:00
|
|
|
if (!ndo->ndo_nflag && doi_id.proto_id && (p_name = netdb_protoname(doi_id.proto_id)) != NULL)
|
|
|
|
ND_PRINT((ndo," protoid=%s", p_name));
|
2015-01-06 19:03:11 +00:00
|
|
|
else
|
2017-01-31 19:17:06 +00:00
|
|
|
ND_PRINT((ndo," protoid=%u", doi_id.proto_id));
|
|
|
|
ND_PRINT((ndo," port=%d", ntohs(doi_id.port)));
|
2000-01-30 00:45:58 +00:00
|
|
|
if (!len)
|
|
|
|
break;
|
2004-03-31 09:17:26 +00:00
|
|
|
if (data == NULL)
|
|
|
|
goto trunc;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK2(*data, len);
|
2017-01-31 19:17:06 +00:00
|
|
|
switch (doi_id.type) {
|
2000-01-30 00:45:58 +00:00
|
|
|
case IPSECDOI_ID_IPV4_ADDR:
|
2004-03-31 09:17:26 +00:00
|
|
|
if (len < 4)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d [bad: < 4]", len));
|
2004-03-31 09:17:26 +00:00
|
|
|
else
|
2015-01-06 19:03:11 +00:00
|
|
|
ND_PRINT((ndo," len=%d %s", len, ipaddr_string(ndo, data)));
|
2000-01-30 00:45:58 +00:00
|
|
|
len = 0;
|
|
|
|
break;
|
|
|
|
case IPSECDOI_ID_FQDN:
|
|
|
|
case IPSECDOI_ID_USER_FQDN:
|
|
|
|
{
|
|
|
|
int i;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d ", len));
|
2002-06-21 00:43:23 +00:00
|
|
|
for (i = 0; i < len; i++)
|
2015-01-06 19:03:11 +00:00
|
|
|
safeputchar(ndo, data[i]);
|
2000-01-30 00:45:58 +00:00
|
|
|
len = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case IPSECDOI_ID_IPV4_ADDR_SUBNET:
|
|
|
|
{
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *mask;
|
|
|
|
if (len < 8)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d [bad: < 8]", len));
|
2004-03-31 09:17:26 +00:00
|
|
|
else {
|
|
|
|
mask = data + sizeof(struct in_addr);
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d %s/%u.%u.%u.%u", len,
|
2015-01-06 19:03:11 +00:00
|
|
|
ipaddr_string(ndo, data),
|
2009-03-21 16:23:46 +00:00
|
|
|
mask[0], mask[1], mask[2], mask[3]));
|
2004-03-31 09:17:26 +00:00
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
len = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case IPSECDOI_ID_IPV6_ADDR:
|
2004-03-31 09:17:26 +00:00
|
|
|
if (len < 16)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d [bad: < 16]", len));
|
2004-03-31 09:17:26 +00:00
|
|
|
else
|
2015-01-06 19:03:11 +00:00
|
|
|
ND_PRINT((ndo," len=%d %s", len, ip6addr_string(ndo, data)));
|
2000-01-30 00:45:58 +00:00
|
|
|
len = 0;
|
|
|
|
break;
|
|
|
|
case IPSECDOI_ID_IPV6_ADDR_SUBNET:
|
|
|
|
{
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *mask;
|
2017-09-18 04:10:54 +00:00
|
|
|
if (len < 32)
|
|
|
|
ND_PRINT((ndo," len=%d [bad: < 32]", len));
|
2004-03-31 09:17:26 +00:00
|
|
|
else {
|
2017-01-31 19:17:06 +00:00
|
|
|
mask = (const u_char *)(data + sizeof(struct in6_addr));
|
2004-03-31 09:17:26 +00:00
|
|
|
/*XXX*/
|
2015-01-06 19:03:11 +00:00
|
|
|
ND_PRINT((ndo," len=%d %s/0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", len,
|
|
|
|
ip6addr_string(ndo, data),
|
|
|
|
mask[0], mask[1], mask[2], mask[3],
|
|
|
|
mask[4], mask[5], mask[6], mask[7],
|
|
|
|
mask[8], mask[9], mask[10], mask[11],
|
|
|
|
mask[12], mask[13], mask[14], mask[15]));
|
2004-03-31 09:17:26 +00:00
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
len = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case IPSECDOI_ID_IPV4_ADDR_RANGE:
|
2004-03-31 09:17:26 +00:00
|
|
|
if (len < 8)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d [bad: < 8]", len));
|
2004-03-31 09:17:26 +00:00
|
|
|
else {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d %s-%s", len,
|
2015-01-06 19:03:11 +00:00
|
|
|
ipaddr_string(ndo, data),
|
|
|
|
ipaddr_string(ndo, data + sizeof(struct in_addr))));
|
2004-03-31 09:17:26 +00:00
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
len = 0;
|
|
|
|
break;
|
|
|
|
case IPSECDOI_ID_IPV6_ADDR_RANGE:
|
2004-03-31 09:17:26 +00:00
|
|
|
if (len < 32)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d [bad: < 32]", len));
|
2004-03-31 09:17:26 +00:00
|
|
|
else {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d %s-%s", len,
|
2015-01-06 19:03:11 +00:00
|
|
|
ip6addr_string(ndo, data),
|
|
|
|
ip6addr_string(ndo, data + sizeof(struct in6_addr))));
|
2004-03-31 09:17:26 +00:00
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
len = 0;
|
|
|
|
break;
|
|
|
|
case IPSECDOI_ID_DER_ASN1_DN:
|
|
|
|
case IPSECDOI_ID_DER_ASN1_GN:
|
|
|
|
case IPSECDOI_ID_KEY_ID:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (data && len) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d", len));
|
|
|
|
if (2 < ndo->ndo_vflag) {
|
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)data, len))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + item_len;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_ID)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2001-04-03 07:45:48 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_cert_print(netdissect_options *ndo, u_char tpay _U_,
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct isakmp_gen *ext, u_int item_len,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep _U_, uint32_t phase _U_,
|
|
|
|
uint32_t doi0 _U_,
|
|
|
|
uint32_t proto0 _U_, int depth _U_)
|
2001-04-03 07:45:48 +00:00
|
|
|
{
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct ikev1_pl_cert *p;
|
|
|
|
struct ikev1_pl_cert cert;
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *certstr[] = {
|
2001-04-03 07:45:48 +00:00
|
|
|
"none", "pkcs7", "pgp", "dns",
|
|
|
|
"x509sign", "x509ke", "kerberos", "crl",
|
|
|
|
"arl", "spki", "x509attr",
|
|
|
|
};
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CERT)));
|
2001-04-03 07:45:48 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_cert *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&cert, ext, sizeof(cert));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d", item_len - 4));
|
|
|
|
ND_PRINT((ndo," type=%s", STR_OR_ID((cert.encode), certstr)));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < item_len) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), item_len - 4))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2001-04-03 07:45:48 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + item_len;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CERT)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2001-04-03 07:45:48 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_cr_print(netdissect_options *ndo, u_char tpay _U_,
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct isakmp_gen *ext, u_int item_len,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep _U_, uint32_t phase _U_, uint32_t doi0 _U_,
|
|
|
|
uint32_t proto0 _U_, int depth _U_)
|
2001-04-03 07:45:48 +00:00
|
|
|
{
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct ikev1_pl_cert *p;
|
|
|
|
struct ikev1_pl_cert cert;
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *certstr[] = {
|
2001-04-03 07:45:48 +00:00
|
|
|
"none", "pkcs7", "pgp", "dns",
|
|
|
|
"x509sign", "x509ke", "kerberos", "crl",
|
|
|
|
"arl", "spki", "x509attr",
|
|
|
|
};
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CR)));
|
2001-04-03 07:45:48 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_cert *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&cert, ext, sizeof(cert));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d", item_len - 4));
|
|
|
|
ND_PRINT((ndo," type=%s", STR_OR_ID((cert.encode), certstr)));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < item_len) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), item_len - 4))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2001-04-03 07:45:48 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + item_len;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CR)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_hash_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext, u_int item_len _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep _U_, uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2001-04-03 07:45:48 +00:00
|
|
|
struct isakmp_gen e;
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_HASH)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2001-04-03 07:45:48 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_HASH)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2001-04-03 07:45:48 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_sig_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext, u_int item_len _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep _U_, uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2001-04-03 07:45:48 +00:00
|
|
|
{
|
|
|
|
struct isakmp_gen e;
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SIG)));
|
2001-04-03 07:45:48 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SIG)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_nonce_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_,
|
2017-01-31 19:17:06 +00:00
|
|
|
const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2001-04-03 07:45:48 +00:00
|
|
|
struct isakmp_gen e;
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_NONCE)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2017-09-18 04:10:54 +00:00
|
|
|
/*
|
|
|
|
* Our caller has ensured that the length is >= 4.
|
|
|
|
*/
|
|
|
|
ND_PRINT((ndo," n len=%u", ntohs(e.len) - 4));
|
|
|
|
if (ntohs(e.len) > 4) {
|
|
|
|
if (ndo->ndo_vflag > 2) {
|
|
|
|
ND_PRINT((ndo, " "));
|
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
|
|
|
goto trunc;
|
|
|
|
} else if (ndo->ndo_vflag > 1) {
|
|
|
|
ND_PRINT((ndo, " "));
|
|
|
|
if (!ike_show_somedata(ndo, (const u_char *)(ext + 1), ep))
|
|
|
|
goto trunc;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_NONCE)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_n_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext, u_int item_len,
|
2017-09-18 04:10:54 +00:00
|
|
|
const u_char *ep, uint32_t phase _U_, uint32_t doi0 _U_,
|
|
|
|
uint32_t proto0 _U_, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct ikev1_pl_n *p;
|
|
|
|
struct ikev1_pl_n n;
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *cp;
|
2017-01-31 19:17:06 +00:00
|
|
|
const u_char *ep2;
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t doi;
|
|
|
|
uint32_t proto;
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *notify_error_str[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
NULL, "INVALID-PAYLOAD-TYPE",
|
|
|
|
"DOI-NOT-SUPPORTED", "SITUATION-NOT-SUPPORTED",
|
|
|
|
"INVALID-COOKIE", "INVALID-MAJOR-VERSION",
|
|
|
|
"INVALID-MINOR-VERSION", "INVALID-EXCHANGE-TYPE",
|
|
|
|
"INVALID-FLAGS", "INVALID-MESSAGE-ID",
|
|
|
|
"INVALID-PROTOCOL-ID", "INVALID-SPI",
|
|
|
|
"INVALID-TRANSFORM-ID", "ATTRIBUTES-NOT-SUPPORTED",
|
|
|
|
"NO-PROPOSAL-CHOSEN", "BAD-PROPOSAL-SYNTAX",
|
|
|
|
"PAYLOAD-MALFORMED", "INVALID-KEY-INFORMATION",
|
|
|
|
"INVALID-ID-INFORMATION", "INVALID-CERT-ENCODING",
|
|
|
|
"INVALID-CERTIFICATE", "CERT-TYPE-UNSUPPORTED",
|
|
|
|
"INVALID-CERT-AUTHORITY", "INVALID-HASH-INFORMATION",
|
|
|
|
"AUTHENTICATION-FAILED", "INVALID-SIGNATURE",
|
|
|
|
"ADDRESS-NOTIFICATION", "NOTIFY-SA-LIFETIME",
|
|
|
|
"CERTIFICATE-UNAVAILABLE", "UNSUPPORTED-EXCHANGE-TYPE",
|
|
|
|
"UNEQUAL-PAYLOAD-LENGTHS",
|
|
|
|
};
|
2004-03-31 09:17:26 +00:00
|
|
|
static const char *ipsec_notify_error_str[] = {
|
|
|
|
"RESERVED",
|
|
|
|
};
|
|
|
|
static const char *notify_status_str[] = {
|
|
|
|
"CONNECTED",
|
|
|
|
};
|
|
|
|
static const char *ipsec_notify_status_str[] = {
|
2000-01-30 00:45:58 +00:00
|
|
|
"RESPONDER-LIFETIME", "REPLAY-STATUS",
|
|
|
|
"INITIAL-CONTACT",
|
|
|
|
};
|
|
|
|
/* NOTE: these macro must be called with x in proper range */
|
2004-03-31 09:17:26 +00:00
|
|
|
|
|
|
|
/* 0 - 8191 */
|
|
|
|
#define NOTIFY_ERROR_STR(x) \
|
|
|
|
STR_OR_ID((x), notify_error_str)
|
|
|
|
|
|
|
|
/* 8192 - 16383 */
|
|
|
|
#define IPSEC_NOTIFY_ERROR_STR(x) \
|
|
|
|
STR_OR_ID((u_int)((x) - 8192), ipsec_notify_error_str)
|
|
|
|
|
|
|
|
/* 16384 - 24575 */
|
|
|
|
#define NOTIFY_STATUS_STR(x) \
|
|
|
|
STR_OR_ID((u_int)((x) - 16384), notify_status_str)
|
|
|
|
|
|
|
|
/* 24576 - 32767 */
|
|
|
|
#define IPSEC_NOTIFY_STATUS_STR(x) \
|
|
|
|
STR_OR_ID((u_int)((x) - 24576), ipsec_notify_status_str)
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_N)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_n *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&n, ext, sizeof(n));
|
2001-04-03 07:45:48 +00:00
|
|
|
doi = ntohl(n.doi);
|
|
|
|
proto = n.prot_id;
|
2000-01-30 00:45:58 +00:00
|
|
|
if (doi != 1) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," doi=%d", doi));
|
|
|
|
ND_PRINT((ndo," proto=%d", proto));
|
2004-03-31 09:17:26 +00:00
|
|
|
if (ntohs(n.type) < 8192)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type))));
|
2004-03-31 09:17:26 +00:00
|
|
|
else if (ntohs(n.type) < 16384)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
|
2004-03-31 09:17:26 +00:00
|
|
|
else if (ntohs(n.type) < 24576)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type))));
|
2004-03-31 09:17:26 +00:00
|
|
|
else
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
|
2001-04-03 07:45:48 +00:00
|
|
|
if (n.spi_size) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," spi="));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(p + 1), n.spi_size))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)(p + 1) + n.spi_size;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," doi=ipsec"));
|
|
|
|
ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto)));
|
2001-04-03 07:45:48 +00:00
|
|
|
if (ntohs(n.type) < 8192)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type))));
|
2001-04-03 07:45:48 +00:00
|
|
|
else if (ntohs(n.type) < 16384)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_ERROR_STR(ntohs(n.type))));
|
2001-04-03 07:45:48 +00:00
|
|
|
else if (ntohs(n.type) < 24576)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type))));
|
2004-03-31 09:17:26 +00:00
|
|
|
else if (ntohs(n.type) < 32768)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_STATUS_STR(ntohs(n.type))));
|
2000-01-30 00:45:58 +00:00
|
|
|
else
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
|
2001-04-03 07:45:48 +00:00
|
|
|
if (n.spi_size) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," spi="));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(p + 1), n.spi_size))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = (const u_char *)(p + 1) + n.spi_size;
|
|
|
|
ep2 = (const u_char *)p + item_len;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
|
|
|
if (cp < ep) {
|
2001-04-03 07:45:48 +00:00
|
|
|
switch (ntohs(n.type)) {
|
2000-01-30 00:45:58 +00:00
|
|
|
case IPSECDOI_NTYPE_RESPONDER_LIFETIME:
|
|
|
|
{
|
2004-03-31 09:17:26 +00:00
|
|
|
const struct attrmap *map = oakley_t_map;
|
2000-01-30 00:45:58 +00:00
|
|
|
size_t nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_PRINT((ndo," attrs=("));
|
2000-01-30 00:45:58 +00:00
|
|
|
while (cp < ep && cp < ep2) {
|
2017-09-18 04:10:54 +00:00
|
|
|
cp = ikev1_attrmap_print(ndo, cp, ep2, map, nmap);
|
|
|
|
if (cp == NULL) {
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
goto trunc;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_PRINT((ndo,")"));
|
2000-01-30 00:45:58 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
case IPSECDOI_NTYPE_REPLAY_STATUS:
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_PRINT((ndo," status=("));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"replay detection %sabled",
|
2015-01-06 19:03:11 +00:00
|
|
|
EXTRACT_32BITS(cp) ? "en" : "dis"));
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_PRINT((ndo,")"));
|
2000-01-30 00:45:58 +00:00
|
|
|
break;
|
|
|
|
default:
|
2017-09-18 04:10:54 +00:00
|
|
|
/*
|
|
|
|
* XXX - fill in more types here; see, for example,
|
|
|
|
* draft-ietf-ipsec-notifymsg-04.
|
|
|
|
*/
|
|
|
|
if (ndo->ndo_vflag > 3) {
|
|
|
|
ND_PRINT((ndo," data=("));
|
|
|
|
if (!rawprint(ndo, (const uint8_t *)(cp), ep - cp))
|
|
|
|
goto trunc;
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
} else {
|
|
|
|
if (!ike_show_somedata(ndo, cp, ep))
|
|
|
|
goto trunc;
|
|
|
|
}
|
|
|
|
break;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + item_len;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_d_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext, u_int item_len _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
const u_char *ep _U_, uint32_t phase _U_, uint32_t doi0 _U_,
|
|
|
|
uint32_t proto0 _U_, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct ikev1_pl_d *p;
|
|
|
|
struct ikev1_pl_d d;
|
2015-01-06 19:03:11 +00:00
|
|
|
const uint8_t *q;
|
|
|
|
uint32_t doi;
|
|
|
|
uint32_t proto;
|
2000-01-30 00:45:58 +00:00
|
|
|
int i;
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_D)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev1_pl_d *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&d, ext, sizeof(d));
|
2001-04-03 07:45:48 +00:00
|
|
|
doi = ntohl(d.doi);
|
|
|
|
proto = d.prot_id;
|
2000-01-30 00:45:58 +00:00
|
|
|
if (doi != 1) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," doi=%u", doi));
|
|
|
|
ND_PRINT((ndo," proto=%u", proto));
|
2000-01-30 00:45:58 +00:00
|
|
|
} else {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," doi=ipsec"));
|
|
|
|
ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto)));
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," spilen=%u", d.spi_size));
|
|
|
|
ND_PRINT((ndo," nspi=%u", ntohs(d.num_spi)));
|
|
|
|
ND_PRINT((ndo," spi="));
|
2017-01-31 19:17:06 +00:00
|
|
|
q = (const uint8_t *)(p + 1);
|
2001-04-03 07:45:48 +00:00
|
|
|
for (i = 0; i < ntohs(d.num_spi); i++) {
|
2000-01-30 00:45:58 +00:00
|
|
|
if (i != 0)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,","));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)q, d.spi_size))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2001-04-03 07:45:48 +00:00
|
|
|
q += d.spi_size;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
return q;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_D)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_vid_print(netdissect_options *ndo, u_char tpay _U_,
|
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2001-04-03 07:45:48 +00:00
|
|
|
struct isakmp_gen e;
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_VID)));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
2004-03-31 09:17:26 +00:00
|
|
|
goto trunc;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_VID)));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
/************************************************************/
|
|
|
|
/* */
|
|
|
|
/* IKE v2 - rfc4306 - dissector */
|
|
|
|
/* */
|
|
|
|
/************************************************************/
|
|
|
|
|
|
|
|
static void
|
|
|
|
ikev2_pay_print(netdissect_options *ndo, const char *payname, int critical)
|
|
|
|
{
|
|
|
|
ND_PRINT((ndo,"%s%s:", payname, critical&0x80 ? "[C]" : ""));
|
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_gen_print(netdissect_options *ndo, u_char tpay,
|
|
|
|
const struct isakmp_gen *ext)
|
|
|
|
{
|
|
|
|
struct isakmp_gen e;
|
|
|
|
|
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
|
|
|
|
|
|
|
|
ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
2009-03-21 16:23:46 +00:00
|
|
|
goto trunc;
|
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2009-03-21 16:23:46 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2017-01-31 19:17:06 +00:00
|
|
|
ikev2_t_print(netdissect_options *ndo, int tcount,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext, u_int item_len,
|
2017-01-31 19:17:06 +00:00
|
|
|
const u_char *ep)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
const struct ikev2_t *p;
|
|
|
|
struct ikev2_t t;
|
2015-01-06 19:03:11 +00:00
|
|
|
uint16_t t_id;
|
2009-03-21 16:23:46 +00:00
|
|
|
const u_char *cp;
|
|
|
|
const char *idstr;
|
|
|
|
const struct attrmap *map;
|
|
|
|
size_t nmap;
|
|
|
|
const u_char *ep2;
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev2_t *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&t, ext, sizeof(t));
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_T), t.h.critical);
|
|
|
|
|
|
|
|
t_id = ntohs(t.t_id);
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
map = NULL;
|
|
|
|
nmap = 0;
|
|
|
|
|
|
|
|
switch (t.t_type) {
|
|
|
|
case IV2_T_ENCR:
|
|
|
|
idstr = STR_OR_ID(t_id, esp_p_map);
|
|
|
|
map = encr_t_map;
|
|
|
|
nmap = sizeof(encr_t_map)/sizeof(encr_t_map[0]);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_T_PRF:
|
|
|
|
idstr = STR_OR_ID(t_id, prf_p_map);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_T_INTEG:
|
|
|
|
idstr = STR_OR_ID(t_id, integ_p_map);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_T_DH:
|
|
|
|
idstr = STR_OR_ID(t_id, dh_p_map);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_T_ESN:
|
|
|
|
idstr = STR_OR_ID(t_id, esn_p_map);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
idstr = NULL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (idstr)
|
2017-01-31 19:17:06 +00:00
|
|
|
ND_PRINT((ndo," #%u type=%s id=%s ", tcount,
|
2009-03-21 16:23:46 +00:00
|
|
|
STR_OR_ID(t.t_type, ikev2_t_type_map),
|
|
|
|
idstr));
|
|
|
|
else
|
2017-01-31 19:17:06 +00:00
|
|
|
ND_PRINT((ndo," #%u type=%s id=%u ", tcount,
|
2009-03-21 16:23:46 +00:00
|
|
|
STR_OR_ID(t.t_type, ikev2_t_type_map),
|
|
|
|
t.t_id));
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = (const u_char *)(p + 1);
|
|
|
|
ep2 = (const u_char *)p + item_len;
|
2009-03-21 16:23:46 +00:00
|
|
|
while (cp < ep && cp < ep2) {
|
|
|
|
if (map && nmap) {
|
2017-09-18 04:10:54 +00:00
|
|
|
cp = ikev1_attrmap_print(ndo, cp, ep2, map, nmap);
|
2009-03-21 16:23:46 +00:00
|
|
|
} else
|
2017-09-18 04:10:54 +00:00
|
|
|
cp = ikev1_attr_print(ndo, cp, ep2);
|
|
|
|
if (cp == NULL)
|
|
|
|
goto trunc;
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
if (ep < ep2)
|
|
|
|
ND_PRINT((ndo,"..."));
|
|
|
|
return cp;
|
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
|
|
|
ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_,
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct isakmp_gen *ext, u_int oprop_length,
|
|
|
|
const u_char *ep, int depth)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
const struct ikev2_p *p;
|
|
|
|
struct ikev2_p prop;
|
2017-01-31 19:17:06 +00:00
|
|
|
u_int prop_length;
|
2009-03-21 16:23:46 +00:00
|
|
|
const u_char *cp;
|
2017-01-31 19:17:06 +00:00
|
|
|
int i;
|
|
|
|
int tcount;
|
|
|
|
u_char np;
|
|
|
|
struct isakmp_gen e;
|
|
|
|
u_int item_len;
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev2_p *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&prop, ext, sizeof(prop));
|
2017-01-31 19:17:06 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_P), prop.h.critical);
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
/*
|
|
|
|
* ikev2_sa_print() guarantees that this is >= 4.
|
|
|
|
*/
|
|
|
|
prop_length = oprop_length - 4;
|
2010-10-28 16:23:25 +00:00
|
|
|
ND_PRINT((ndo," #%u protoid=%s transform=%d len=%u",
|
|
|
|
prop.p_no, PROTOIDSTR(prop.prot_id),
|
2017-01-31 19:17:06 +00:00
|
|
|
prop.num_t, oprop_length));
|
|
|
|
cp = (const u_char *)(p + 1);
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
if (prop.spi_size) {
|
2017-01-31 19:17:06 +00:00
|
|
|
if (prop_length < prop.spi_size)
|
|
|
|
goto toolong;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," spi="));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)cp, prop.spi_size))
|
2009-03-21 16:23:46 +00:00
|
|
|
goto trunc;
|
2017-01-31 19:17:06 +00:00
|
|
|
cp += prop.spi_size;
|
|
|
|
prop_length -= prop.spi_size;
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
/*
|
|
|
|
* Print the transforms.
|
|
|
|
*/
|
|
|
|
tcount = 0;
|
|
|
|
for (np = ISAKMP_NPTYPE_T; np != 0; np = e.np) {
|
|
|
|
tcount++;
|
|
|
|
ext = (const struct isakmp_gen *)cp;
|
|
|
|
if (prop_length < sizeof(*ext))
|
|
|
|
goto toolong;
|
|
|
|
ND_TCHECK(*ext);
|
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Since we can't have a payload length of less than 4 bytes,
|
|
|
|
* we need to bail out here if the generic header is nonsensical
|
|
|
|
* or truncated, otherwise we could loop forever processing
|
|
|
|
* zero-length items or otherwise misdissect the packet.
|
|
|
|
*/
|
|
|
|
item_len = ntohs(e.len);
|
|
|
|
if (item_len <= 4)
|
|
|
|
goto trunc;
|
|
|
|
|
|
|
|
if (prop_length < item_len)
|
|
|
|
goto toolong;
|
|
|
|
ND_TCHECK2(*cp, item_len);
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
depth++;
|
|
|
|
ND_PRINT((ndo,"\n"));
|
|
|
|
for (i = 0; i < depth; i++)
|
|
|
|
ND_PRINT((ndo," "));
|
|
|
|
ND_PRINT((ndo,"("));
|
|
|
|
if (np == ISAKMP_NPTYPE_T) {
|
|
|
|
cp = ikev2_t_print(ndo, tcount, ext, item_len, ep);
|
|
|
|
if (cp == NULL) {
|
|
|
|
/* error, already reported */
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ND_PRINT((ndo, "%s", NPSTR(np)));
|
|
|
|
cp += item_len;
|
|
|
|
}
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
depth--;
|
|
|
|
prop_length -= item_len;
|
|
|
|
}
|
|
|
|
return cp;
|
|
|
|
toolong:
|
|
|
|
/*
|
|
|
|
* Skip the rest of the proposal.
|
|
|
|
*/
|
|
|
|
cp += prop_length;
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
|
2009-03-21 16:23:46 +00:00
|
|
|
return cp;
|
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_sa_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext1,
|
2017-01-31 19:17:06 +00:00
|
|
|
u_int osa_length, const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
2017-01-31 19:17:06 +00:00
|
|
|
uint32_t proto _U_, int depth)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct isakmp_gen *ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
struct isakmp_gen e;
|
2017-01-31 19:17:06 +00:00
|
|
|
u_int sa_length;
|
|
|
|
const u_char *cp;
|
|
|
|
int i;
|
|
|
|
int pcount;
|
|
|
|
u_char np;
|
|
|
|
u_int item_len;
|
2009-03-21 16:23:46 +00:00
|
|
|
|
|
|
|
ND_TCHECK(*ext1);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext1, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, "sa", e.critical);
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
/*
|
|
|
|
* ikev2_sub0_print() guarantees that this is >= 4.
|
|
|
|
*/
|
2010-10-28 16:23:25 +00:00
|
|
|
osa_length= ntohs(e.len);
|
|
|
|
sa_length = osa_length - 4;
|
|
|
|
ND_PRINT((ndo," len=%d", sa_length));
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
/*
|
|
|
|
* Print the payloads.
|
|
|
|
*/
|
|
|
|
cp = (const u_char *)(ext1 + 1);
|
|
|
|
pcount = 0;
|
|
|
|
for (np = ISAKMP_NPTYPE_P; np != 0; np = e.np) {
|
|
|
|
pcount++;
|
|
|
|
ext = (const struct isakmp_gen *)cp;
|
|
|
|
if (sa_length < sizeof(*ext))
|
|
|
|
goto toolong;
|
|
|
|
ND_TCHECK(*ext);
|
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Since we can't have a payload length of less than 4 bytes,
|
|
|
|
* we need to bail out here if the generic header is nonsensical
|
|
|
|
* or truncated, otherwise we could loop forever processing
|
|
|
|
* zero-length items or otherwise misdissect the packet.
|
|
|
|
*/
|
|
|
|
item_len = ntohs(e.len);
|
|
|
|
if (item_len <= 4)
|
|
|
|
goto trunc;
|
|
|
|
|
|
|
|
if (sa_length < item_len)
|
|
|
|
goto toolong;
|
|
|
|
ND_TCHECK2(*cp, item_len);
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
depth++;
|
|
|
|
ND_PRINT((ndo,"\n"));
|
|
|
|
for (i = 0; i < depth; i++)
|
|
|
|
ND_PRINT((ndo," "));
|
|
|
|
ND_PRINT((ndo,"("));
|
|
|
|
if (np == ISAKMP_NPTYPE_P) {
|
|
|
|
cp = ikev2_p_print(ndo, np, pcount, ext, item_len,
|
|
|
|
ep, depth);
|
|
|
|
if (cp == NULL) {
|
|
|
|
/* error, already reported */
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ND_PRINT((ndo, "%s", NPSTR(np)));
|
|
|
|
cp += item_len;
|
|
|
|
}
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
depth--;
|
|
|
|
sa_length -= item_len;
|
|
|
|
}
|
|
|
|
return cp;
|
|
|
|
toolong:
|
|
|
|
/*
|
|
|
|
* Skip the rest of the SA.
|
|
|
|
*/
|
|
|
|
cp += sa_length;
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return cp;
|
2009-03-21 16:23:46 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_ke_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
struct ikev2_ke ke;
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct ikev2_ke *k;
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
k = (const struct ikev2_ke *)ext;
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK(*k);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&ke, ext, sizeof(ke));
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(tpay), ke.h.critical);
|
|
|
|
|
|
|
|
ND_PRINT((ndo," len=%u group=%s", ntohs(ke.h.len) - 8,
|
|
|
|
STR_OR_ID(ntohs(ke.ke_group), dh_p_map)));
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
if (2 < ndo->ndo_vflag && 8 < ntohs(ke.h.len)) {
|
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(k + 1), ntohs(ke.h.len) - 8))
|
2009-03-21 16:23:46 +00:00
|
|
|
goto trunc;
|
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(ke.h.len);
|
2009-03-21 16:23:46 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_ID_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
2017-09-18 04:10:54 +00:00
|
|
|
const struct ikev2_id *idp;
|
2010-10-28 16:23:25 +00:00
|
|
|
struct ikev2_id id;
|
|
|
|
int id_len, idtype_len, i;
|
|
|
|
unsigned int dumpascii, dumphex;
|
2017-01-31 19:17:06 +00:00
|
|
|
const unsigned char *typedata;
|
2010-10-28 16:23:25 +00:00
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
idp = (const struct ikev2_id *)ext;
|
|
|
|
ND_TCHECK(*idp);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&id, ext, sizeof(id));
|
2010-10-28 16:23:25 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(tpay), id.h.critical);
|
|
|
|
|
|
|
|
id_len = ntohs(id.h.len);
|
|
|
|
|
|
|
|
ND_PRINT((ndo," len=%d", id_len - 4));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < id_len) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2010-10-28 16:23:25 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), id_len - 4))
|
2010-10-28 16:23:25 +00:00
|
|
|
goto trunc;
|
|
|
|
}
|
|
|
|
|
|
|
|
idtype_len =id_len - sizeof(struct ikev2_id);
|
|
|
|
dumpascii = 0;
|
|
|
|
dumphex = 0;
|
2017-01-31 19:17:06 +00:00
|
|
|
typedata = (const unsigned char *)(ext)+sizeof(struct ikev2_id);
|
2010-10-28 16:23:25 +00:00
|
|
|
|
|
|
|
switch(id.type) {
|
|
|
|
case ID_IPV4_ADDR:
|
|
|
|
ND_PRINT((ndo, " ipv4:"));
|
|
|
|
dumphex=1;
|
|
|
|
break;
|
|
|
|
case ID_FQDN:
|
|
|
|
ND_PRINT((ndo, " fqdn:"));
|
|
|
|
dumpascii=1;
|
|
|
|
break;
|
|
|
|
case ID_RFC822_ADDR:
|
|
|
|
ND_PRINT((ndo, " rfc822:"));
|
|
|
|
dumpascii=1;
|
|
|
|
break;
|
|
|
|
case ID_IPV6_ADDR:
|
|
|
|
ND_PRINT((ndo, " ipv6:"));
|
|
|
|
dumphex=1;
|
|
|
|
break;
|
|
|
|
case ID_DER_ASN1_DN:
|
|
|
|
ND_PRINT((ndo, " dn:"));
|
|
|
|
dumphex=1;
|
|
|
|
break;
|
|
|
|
case ID_DER_ASN1_GN:
|
|
|
|
ND_PRINT((ndo, " gn:"));
|
|
|
|
dumphex=1;
|
|
|
|
break;
|
|
|
|
case ID_KEY_ID:
|
|
|
|
ND_PRINT((ndo, " keyid:"));
|
|
|
|
dumphex=1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(dumpascii) {
|
|
|
|
ND_TCHECK2(*typedata, idtype_len);
|
|
|
|
for(i=0; i<idtype_len; i++) {
|
2015-01-06 19:03:11 +00:00
|
|
|
if(ND_ISPRINT(typedata[i])) {
|
2010-10-28 16:23:25 +00:00
|
|
|
ND_PRINT((ndo, "%c", typedata[i]));
|
|
|
|
} else {
|
|
|
|
ND_PRINT((ndo, "."));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(dumphex) {
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)typedata, idtype_len))
|
2010-10-28 16:23:25 +00:00
|
|
|
goto trunc;
|
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + id_len;
|
2010-10-28 16:23:25 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_cert_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
return ikev2_gen_print(ndo, tpay, ext);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_cr_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
return ikev2_gen_print(ndo, tpay, ext);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_auth_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
2017-01-31 19:17:06 +00:00
|
|
|
u_int item_len _U_, const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
2010-10-28 16:23:25 +00:00
|
|
|
struct ikev2_auth a;
|
2009-03-21 16:23:46 +00:00
|
|
|
const char *v2_auth[]={ "invalid", "rsasig",
|
|
|
|
"shared-secret", "dsssig" };
|
2017-01-31 19:17:06 +00:00
|
|
|
const u_char *authdata = (const u_char*)ext + sizeof(a);
|
2010-10-28 16:23:25 +00:00
|
|
|
unsigned int len;
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK2(*ext, sizeof(a));
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&a, ext, sizeof(a));
|
2010-10-28 16:23:25 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(tpay), a.h.critical);
|
|
|
|
len = ntohs(a.h.len);
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
/*
|
|
|
|
* Our caller has ensured that the length is >= 4.
|
|
|
|
*/
|
|
|
|
ND_PRINT((ndo," len=%u method=%s", len-4,
|
2010-10-28 16:23:25 +00:00
|
|
|
STR_OR_ID(a.auth_method, v2_auth)));
|
2017-09-18 04:10:54 +00:00
|
|
|
if (len > 4) {
|
|
|
|
if (ndo->ndo_vflag > 1) {
|
|
|
|
ND_PRINT((ndo, " authdata=("));
|
|
|
|
if (!rawprint(ndo, (const uint8_t *)authdata, len - sizeof(a)))
|
|
|
|
goto trunc;
|
|
|
|
ND_PRINT((ndo, ") "));
|
|
|
|
} else if (ndo->ndo_vflag) {
|
|
|
|
if (!ike_show_somedata(ndo, authdata, ep))
|
|
|
|
goto trunc;
|
|
|
|
}
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + len;
|
2009-03-21 16:23:46 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_nonce_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
2017-01-31 19:17:06 +00:00
|
|
|
u_int item_len _U_, const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
struct isakmp_gen e;
|
|
|
|
|
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, "nonce", e.critical);
|
|
|
|
|
|
|
|
ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
|
|
|
|
if (1 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
|
|
|
|
ND_PRINT((ndo," nonce=("));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
2009-03-21 16:23:46 +00:00
|
|
|
goto trunc;
|
|
|
|
ND_PRINT((ndo,") "));
|
|
|
|
} else if(ndo->ndo_vflag && 4 < ntohs(e.len)) {
|
|
|
|
if(!ike_show_somedata(ndo, (const u_char *)(ext+1), ep)) goto trunc;
|
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2009-03-21 16:23:46 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* notify payloads */
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_n_print(netdissect_options *ndo, u_char tpay _U_,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
2017-01-31 19:17:06 +00:00
|
|
|
u_int item_len, const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
2017-01-31 19:17:06 +00:00
|
|
|
const struct ikev2_n *p;
|
|
|
|
struct ikev2_n n;
|
2009-03-21 16:23:46 +00:00
|
|
|
const u_char *cp;
|
2017-09-18 04:10:54 +00:00
|
|
|
u_char showspi, showsomedata;
|
2009-03-21 16:23:46 +00:00
|
|
|
const char *notify_name;
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t type;
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
p = (const struct ikev2_n *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*p);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&n, ext, sizeof(n));
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_N), n.h.critical);
|
|
|
|
|
|
|
|
showspi = 1;
|
|
|
|
showsomedata=0;
|
|
|
|
notify_name=NULL;
|
|
|
|
|
|
|
|
ND_PRINT((ndo," prot_id=%s", PROTOIDSTR(n.prot_id)));
|
|
|
|
|
|
|
|
type = ntohs(n.type);
|
|
|
|
|
|
|
|
/* notify space is annoying sparse */
|
|
|
|
switch(type) {
|
|
|
|
case IV2_NOTIFY_UNSUPPORTED_CRITICAL_PAYLOAD:
|
|
|
|
notify_name = "unsupported_critical_payload";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INVALID_IKE_SPI:
|
|
|
|
notify_name = "invalid_ike_spi";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INVALID_MAJOR_VERSION:
|
|
|
|
notify_name = "invalid_major_version";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INVALID_SYNTAX:
|
|
|
|
notify_name = "invalid_syntax";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INVALID_MESSAGE_ID:
|
|
|
|
notify_name = "invalid_message_id";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INVALID_SPI:
|
|
|
|
notify_name = "invalid_spi";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_NO_PROPOSAL_CHOSEN:
|
|
|
|
notify_name = "no_protocol_chosen";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INVALID_KE_PAYLOAD:
|
|
|
|
notify_name = "invalid_ke_payload";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_AUTHENTICATION_FAILED:
|
|
|
|
notify_name = "authentication_failed";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_SINGLE_PAIR_REQUIRED:
|
|
|
|
notify_name = "single_pair_required";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_NO_ADDITIONAL_SAS:
|
|
|
|
notify_name = "no_additional_sas";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INTERNAL_ADDRESS_FAILURE:
|
|
|
|
notify_name = "internal_address_failure";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
case IV2_NOTIFY_FAILED_CP_REQUIRED:
|
2009-03-21 16:23:46 +00:00
|
|
|
notify_name = "failed:cp_required";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INVALID_SELECTORS:
|
|
|
|
notify_name = "invalid_selectors";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_INITIAL_CONTACT:
|
|
|
|
notify_name = "initial_contact";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
case IV2_NOTIFY_SET_WINDOW_SIZE:
|
2009-03-21 16:23:46 +00:00
|
|
|
notify_name = "set_window_size";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_ADDITIONAL_TS_POSSIBLE:
|
|
|
|
notify_name = "additional_ts_possible";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
case IV2_NOTIFY_IPCOMP_SUPPORTED:
|
2009-03-21 16:23:46 +00:00
|
|
|
notify_name = "ipcomp_supported";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_NAT_DETECTION_SOURCE_IP:
|
|
|
|
notify_name = "nat_detection_source_ip";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_NAT_DETECTION_DESTINATION_IP:
|
|
|
|
notify_name = "nat_detection_destination_ip";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_COOKIE:
|
|
|
|
notify_name = "cookie";
|
|
|
|
showspi = 1;
|
|
|
|
showsomedata= 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_USE_TRANSPORT_MODE:
|
|
|
|
notify_name = "use_transport_mode";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_HTTP_CERT_LOOKUP_SUPPORTED:
|
|
|
|
notify_name = "http_cert_lookup_supported";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_REKEY_SA:
|
|
|
|
notify_name = "rekey_sa";
|
|
|
|
showspi = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_ESP_TFC_PADDING_NOT_SUPPORTED:
|
|
|
|
notify_name = "tfc_padding_not_supported";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IV2_NOTIFY_NON_FIRST_FRAGMENTS_ALSO:
|
|
|
|
notify_name = "non_first_fragment_also";
|
|
|
|
showspi = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
if (type < 8192) {
|
|
|
|
notify_name="error";
|
|
|
|
} else if(type < 16384) {
|
|
|
|
notify_name="private-error";
|
|
|
|
} else if(type < 40960) {
|
|
|
|
notify_name="status";
|
|
|
|
} else {
|
|
|
|
notify_name="private-status";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if(notify_name) {
|
|
|
|
ND_PRINT((ndo," type=%u(%s)", type, notify_name));
|
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
|
|
|
|
if (showspi && n.spi_size) {
|
|
|
|
ND_PRINT((ndo," spi="));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(p + 1), n.spi_size))
|
2009-03-21 16:23:46 +00:00
|
|
|
goto trunc;
|
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = (const u_char *)(p + 1) + n.spi_size;
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
if (cp < ep) {
|
|
|
|
if (ndo->ndo_vflag > 3 || (showsomedata && ep-cp < 30)) {
|
|
|
|
ND_PRINT((ndo," data=("));
|
|
|
|
if (!rawprint(ndo, (const uint8_t *)(cp), ep - cp))
|
|
|
|
goto trunc;
|
2009-03-21 16:23:46 +00:00
|
|
|
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
} else if (showsomedata) {
|
|
|
|
if (!ike_show_somedata(ndo, cp, ep))
|
|
|
|
goto trunc;
|
|
|
|
}
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + item_len;
|
2009-03-21 16:23:46 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_d_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
return ikev2_gen_print(ndo, tpay, ext);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_vid_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
struct isakmp_gen e;
|
|
|
|
const u_char *vid;
|
|
|
|
int i, len;
|
|
|
|
|
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
|
|
|
|
ND_PRINT((ndo," len=%d vid=", ntohs(e.len) - 4));
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
vid = (const u_char *)(ext+1);
|
|
|
|
len = ntohs(e.len) - 4;
|
|
|
|
ND_TCHECK2(*vid, len);
|
|
|
|
for(i=0; i<len; i++) {
|
2015-01-06 19:03:11 +00:00
|
|
|
if(ND_ISPRINT(vid[i])) ND_PRINT((ndo, "%c", vid[i]));
|
2010-10-28 16:23:25 +00:00
|
|
|
else ND_PRINT((ndo, "."));
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < len) {
|
2017-09-18 04:10:54 +00:00
|
|
|
/* Print the entire payload in hex */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
|
2009-03-21 16:23:46 +00:00
|
|
|
goto trunc;
|
|
|
|
}
|
2017-01-31 19:17:06 +00:00
|
|
|
return (const u_char *)ext + ntohs(e.len);
|
2009-03-21 16:23:46 +00:00
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_TS_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
return ikev2_gen_print(ndo, tpay, ext);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2010-10-28 16:23:25 +00:00
|
|
|
ikev2_e_print(netdissect_options *ndo,
|
|
|
|
#ifndef HAVE_LIBCRYPTO
|
|
|
|
_U_
|
|
|
|
#endif
|
|
|
|
struct isakmp *base,
|
2015-01-06 19:03:11 +00:00
|
|
|
u_char tpay,
|
2010-10-28 16:23:25 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
|
|
|
#ifndef HAVE_LIBCRYPTO
|
|
|
|
_U_
|
|
|
|
#endif
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase,
|
2010-10-28 16:23:25 +00:00
|
|
|
#ifndef HAVE_LIBCRYPTO
|
|
|
|
_U_
|
|
|
|
#endif
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t doi,
|
2010-10-28 16:23:25 +00:00
|
|
|
#ifndef HAVE_LIBCRYPTO
|
|
|
|
_U_
|
|
|
|
#endif
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t proto,
|
2010-10-28 16:23:25 +00:00
|
|
|
#ifndef HAVE_LIBCRYPTO
|
|
|
|
_U_
|
|
|
|
#endif
|
|
|
|
int depth)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
2010-10-28 16:23:25 +00:00
|
|
|
struct isakmp_gen e;
|
2017-01-31 19:17:06 +00:00
|
|
|
const u_char *dat;
|
2010-10-28 16:23:25 +00:00
|
|
|
volatile int dlen;
|
|
|
|
|
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2010-10-28 16:23:25 +00:00
|
|
|
ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
|
|
|
|
|
|
|
|
dlen = ntohs(e.len)-4;
|
|
|
|
|
|
|
|
ND_PRINT((ndo," len=%d", dlen));
|
|
|
|
if (2 < ndo->ndo_vflag && 4 < dlen) {
|
|
|
|
ND_PRINT((ndo," "));
|
2017-01-31 19:17:06 +00:00
|
|
|
if (!rawprint(ndo, (const uint8_t *)(ext + 1), dlen))
|
2010-10-28 16:23:25 +00:00
|
|
|
goto trunc;
|
|
|
|
}
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
dat = (const u_char *)(ext+1);
|
2010-10-28 16:23:25 +00:00
|
|
|
ND_TCHECK2(*dat, dlen);
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
#ifdef HAVE_LIBCRYPTO
|
|
|
|
/* try to decypt it! */
|
|
|
|
if(esp_print_decrypt_buffer_by_ikev2(ndo,
|
|
|
|
base->flags & ISAKMP_FLAG_I,
|
|
|
|
base->i_ck, base->r_ck,
|
|
|
|
dat, dat+dlen)) {
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
ext = (const struct isakmp_gen *)ndo->ndo_packetp;
|
|
|
|
|
|
|
|
/* got it decrypted, print stuff inside. */
|
|
|
|
ikev2_sub_print(ndo, base, e.np, ext, ndo->ndo_snapend,
|
|
|
|
phase, doi, proto, depth+1);
|
|
|
|
}
|
|
|
|
#endif
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
|
|
|
|
/* always return NULL, because E must be at end, and NP refers
|
|
|
|
* to what was inside.
|
|
|
|
*/
|
|
|
|
return NULL;
|
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
|
|
|
|
return NULL;
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_cp_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
return ikev2_gen_print(ndo, tpay, ext);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
2015-01-06 19:03:11 +00:00
|
|
|
ikev2_eap_print(netdissect_options *ndo, u_char tpay,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext,
|
|
|
|
u_int item_len _U_, const u_char *ep _U_,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase _U_, uint32_t doi _U_,
|
|
|
|
uint32_t proto _U_, int depth _U_)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
return ikev2_gen_print(ndo, tpay, ext);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
|
|
|
ike_sub0_print(netdissect_options *ndo,
|
|
|
|
u_char np, const struct isakmp_gen *ext, const u_char *ep,
|
2010-10-28 16:23:25 +00:00
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase, uint32_t doi, uint32_t proto, int depth)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *cp;
|
2001-04-03 07:45:48 +00:00
|
|
|
struct isakmp_gen e;
|
2003-03-02 08:22:26 +00:00
|
|
|
u_int item_len;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = (const u_char *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
/*
|
|
|
|
* Since we can't have a payload length of less than 4 bytes,
|
|
|
|
* we need to bail out here if the generic header is nonsensical
|
|
|
|
* or truncated, otherwise we could loop forever processing
|
|
|
|
* zero-length items or otherwise misdissect the packet.
|
|
|
|
*/
|
|
|
|
item_len = ntohs(e.len);
|
|
|
|
if (item_len <= 4)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
if (NPFUNC(np)) {
|
|
|
|
/*
|
|
|
|
* XXX - what if item_len is too short, or too long,
|
|
|
|
* for this payload type?
|
|
|
|
*/
|
2009-03-21 16:23:46 +00:00
|
|
|
cp = (*npfunc[np])(ndo, np, ext, item_len, ep, phase, doi, proto, depth);
|
2004-03-31 09:17:26 +00:00
|
|
|
} else {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"%s", NPSTR(np)));
|
2004-03-31 09:17:26 +00:00
|
|
|
cp += item_len;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2004-03-31 09:17:26 +00:00
|
|
|
|
2000-01-30 00:45:58 +00:00
|
|
|
return cp;
|
2004-03-31 09:17:26 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|isakmp]"));
|
2004-03-31 09:17:26 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
static const u_char *
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_sub_print(netdissect_options *ndo,
|
|
|
|
u_char np, const struct isakmp_gen *ext, const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase, uint32_t doi, uint32_t proto, int depth)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2004-03-31 09:17:26 +00:00
|
|
|
const u_char *cp;
|
2000-01-30 00:45:58 +00:00
|
|
|
int i;
|
2001-04-03 07:45:48 +00:00
|
|
|
struct isakmp_gen e;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
cp = (const u_char *)ext;
|
2000-01-30 00:45:58 +00:00
|
|
|
|
|
|
|
while (np) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2001-04-03 07:45:48 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK2(*ext, ntohs(e.len));
|
2004-03-31 09:17:26 +00:00
|
|
|
|
2000-01-30 00:45:58 +00:00
|
|
|
depth++;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"\n"));
|
2000-01-30 00:45:58 +00:00
|
|
|
for (i = 0; i < depth; i++)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," "));
|
|
|
|
ND_PRINT((ndo,"("));
|
|
|
|
cp = ike_sub0_print(ndo, np, ext, ep, phase, doi, proto, depth);
|
|
|
|
ND_PRINT((ndo,")"));
|
2000-01-30 00:45:58 +00:00
|
|
|
depth--;
|
|
|
|
|
2003-03-02 08:22:26 +00:00
|
|
|
if (cp == NULL) {
|
|
|
|
/* Zero-length subitem */
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2001-04-03 07:45:48 +00:00
|
|
|
np = e.np;
|
2017-01-31 19:17:06 +00:00
|
|
|
ext = (const struct isakmp_gen *)cp;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
return cp;
|
2004-01-13 17:28:59 +00:00
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(np)));
|
2004-01-13 17:28:59 +00:00
|
|
|
return NULL;
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static char *
|
|
|
|
numstr(int x)
|
|
|
|
{
|
|
|
|
static char buf[20];
|
2001-04-03 07:45:48 +00:00
|
|
|
snprintf(buf, sizeof(buf), "#%d", x);
|
2000-01-30 00:45:58 +00:00
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
static void
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_print(netdissect_options *ndo,
|
|
|
|
const u_char *bp, u_int length,
|
|
|
|
const u_char *bp2, struct isakmp *base)
|
2000-01-30 00:45:58 +00:00
|
|
|
{
|
2004-03-31 09:17:26 +00:00
|
|
|
const struct isakmp *p;
|
|
|
|
const u_char *ep;
|
2000-01-30 00:45:58 +00:00
|
|
|
u_char np;
|
|
|
|
int i;
|
|
|
|
int phase;
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
p = (const struct isakmp *)bp;
|
2005-05-29 18:17:16 +00:00
|
|
|
ep = ndo->ndo_snapend;
|
2015-01-06 19:03:11 +00:00
|
|
|
|
|
|
|
phase = (EXTRACT_32BITS(base->msgid) == 0) ? 1 : 2;
|
2000-01-30 00:45:58 +00:00
|
|
|
if (phase == 1)
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," phase %d", phase));
|
2000-01-30 00:45:58 +00:00
|
|
|
else
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," phase %d/others", phase));
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
i = cookie_find(&base->i_ck);
|
2000-01-30 00:45:58 +00:00
|
|
|
if (i < 0) {
|
2017-01-31 19:17:06 +00:00
|
|
|
if (iszero((const u_char *)&base->r_ck, sizeof(base->r_ck))) {
|
2000-01-30 00:45:58 +00:00
|
|
|
/* the first packet */
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," I"));
|
2000-01-30 00:45:58 +00:00
|
|
|
if (bp2)
|
2009-03-21 16:23:46 +00:00
|
|
|
cookie_record(&base->i_ck, bp2);
|
2000-01-30 00:45:58 +00:00
|
|
|
} else
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," ?"));
|
2000-01-30 00:45:58 +00:00
|
|
|
} else {
|
|
|
|
if (bp2 && cookie_isinitiator(i, bp2))
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," I"));
|
2000-01-30 00:45:58 +00:00
|
|
|
else if (bp2 && cookie_isresponder(i, bp2))
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," R"));
|
2000-01-30 00:45:58 +00:00
|
|
|
else
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," ?"));
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo," %s", ETYPESTR(base->etype)));
|
|
|
|
if (base->flags) {
|
|
|
|
ND_PRINT((ndo,"[%s%s]", base->flags & ISAKMP_FLAG_E ? "E" : "",
|
|
|
|
base->flags & ISAKMP_FLAG_C ? "C" : ""));
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
if (ndo->ndo_vflag) {
|
2004-03-31 09:17:26 +00:00
|
|
|
const struct isakmp_gen *ext;
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,":"));
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
/* regardless of phase... */
|
|
|
|
if (base->flags & ISAKMP_FLAG_E) {
|
|
|
|
/*
|
|
|
|
* encrypted, nothing we can do right now.
|
|
|
|
* we hope to decrypt the packet in the future...
|
|
|
|
*/
|
|
|
|
ND_PRINT((ndo," [encrypted %s]", NPSTR(base->np)));
|
|
|
|
goto done;
|
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
CHECKLEN(p + 1, base->np);
|
|
|
|
np = base->np;
|
2017-01-31 19:17:06 +00:00
|
|
|
ext = (const struct isakmp_gen *)(p + 1);
|
2009-03-21 16:23:46 +00:00
|
|
|
ikev1_sub_print(ndo, np, ext, ep, phase, 0, 0, 0);
|
|
|
|
}
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
done:
|
|
|
|
if (ndo->ndo_vflag) {
|
|
|
|
if (ntohl(base->len) != length) {
|
|
|
|
ND_PRINT((ndo," (len mismatch: isakmp %u/ip %u)",
|
2015-01-06 19:03:11 +00:00
|
|
|
(uint32_t)ntohl(base->len), length));
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
static const u_char *
|
2010-10-28 16:23:25 +00:00
|
|
|
ikev2_sub0_print(netdissect_options *ndo, struct isakmp *base,
|
2017-01-31 19:17:06 +00:00
|
|
|
u_char np,
|
2009-03-21 16:23:46 +00:00
|
|
|
const struct isakmp_gen *ext, const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase, uint32_t doi, uint32_t proto, int depth)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
const u_char *cp;
|
|
|
|
struct isakmp_gen e;
|
|
|
|
u_int item_len;
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = (const u_char *)ext;
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Since we can't have a payload length of less than 4 bytes,
|
|
|
|
* we need to bail out here if the generic header is nonsensical
|
|
|
|
* or truncated, otherwise we could loop forever processing
|
|
|
|
* zero-length items or otherwise misdissect the packet.
|
|
|
|
*/
|
|
|
|
item_len = ntohs(e.len);
|
|
|
|
if (item_len <= 4)
|
|
|
|
return NULL;
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
if (np == ISAKMP_NPTYPE_v2E) {
|
2010-10-28 16:23:25 +00:00
|
|
|
cp = ikev2_e_print(ndo, base, np, ext, item_len,
|
|
|
|
ep, phase, doi, proto, depth);
|
2009-03-21 16:23:46 +00:00
|
|
|
} else if (NPFUNC(np)) {
|
|
|
|
/*
|
|
|
|
* XXX - what if item_len is too short, or too long,
|
|
|
|
* for this payload type?
|
|
|
|
*/
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = (*npfunc[np])(ndo, np, ext, item_len,
|
2009-03-21 16:23:46 +00:00
|
|
|
ep, phase, doi, proto, depth);
|
|
|
|
} else {
|
|
|
|
ND_PRINT((ndo,"%s", NPSTR(np)));
|
|
|
|
cp += item_len;
|
|
|
|
}
|
|
|
|
|
|
|
|
return cp;
|
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|isakmp]"));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const u_char *
|
|
|
|
ikev2_sub_print(netdissect_options *ndo,
|
2010-10-28 16:23:25 +00:00
|
|
|
struct isakmp *base,
|
2009-03-21 16:23:46 +00:00
|
|
|
u_char np, const struct isakmp_gen *ext, const u_char *ep,
|
2015-01-06 19:03:11 +00:00
|
|
|
uint32_t phase, uint32_t doi, uint32_t proto, int depth)
|
2009-03-21 16:23:46 +00:00
|
|
|
{
|
|
|
|
const u_char *cp;
|
|
|
|
int i;
|
|
|
|
struct isakmp_gen e;
|
|
|
|
|
|
|
|
cp = (const u_char *)ext;
|
|
|
|
while (np) {
|
|
|
|
ND_TCHECK(*ext);
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&e, ext, sizeof(e));
|
2009-03-21 16:23:46 +00:00
|
|
|
|
|
|
|
ND_TCHECK2(*ext, ntohs(e.len));
|
|
|
|
|
|
|
|
depth++;
|
|
|
|
ND_PRINT((ndo,"\n"));
|
|
|
|
for (i = 0; i < depth; i++)
|
|
|
|
ND_PRINT((ndo," "));
|
|
|
|
ND_PRINT((ndo,"("));
|
2017-01-31 19:17:06 +00:00
|
|
|
cp = ikev2_sub0_print(ndo, base, np,
|
2009-03-21 16:23:46 +00:00
|
|
|
ext, ep, phase, doi, proto, depth);
|
|
|
|
ND_PRINT((ndo,")"));
|
|
|
|
depth--;
|
|
|
|
|
|
|
|
if (cp == NULL) {
|
|
|
|
/* Zero-length subitem */
|
|
|
|
return NULL;
|
2004-03-31 09:17:26 +00:00
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
np = e.np;
|
2017-01-31 19:17:06 +00:00
|
|
|
ext = (const struct isakmp_gen *)cp;
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
return cp;
|
|
|
|
trunc:
|
|
|
|
ND_PRINT((ndo," [|%s]", NPSTR(np)));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
ikev2_print(netdissect_options *ndo,
|
|
|
|
const u_char *bp, u_int length,
|
|
|
|
const u_char *bp2 _U_, struct isakmp *base)
|
|
|
|
{
|
|
|
|
const struct isakmp *p;
|
|
|
|
const u_char *ep;
|
|
|
|
u_char np;
|
|
|
|
int phase;
|
|
|
|
|
|
|
|
p = (const struct isakmp *)bp;
|
|
|
|
ep = ndo->ndo_snapend;
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
phase = (EXTRACT_32BITS(base->msgid) == 0) ? 1 : 2;
|
2009-03-21 16:23:46 +00:00
|
|
|
if (phase == 1)
|
|
|
|
ND_PRINT((ndo, " parent_sa"));
|
|
|
|
else
|
|
|
|
ND_PRINT((ndo, " child_sa "));
|
|
|
|
|
|
|
|
ND_PRINT((ndo, " %s", ETYPESTR(base->etype)));
|
|
|
|
if (base->flags) {
|
2010-10-28 16:23:25 +00:00
|
|
|
ND_PRINT((ndo, "[%s%s%s]",
|
2009-03-21 16:23:46 +00:00
|
|
|
base->flags & ISAKMP_FLAG_I ? "I" : "",
|
|
|
|
base->flags & ISAKMP_FLAG_V ? "V" : "",
|
|
|
|
base->flags & ISAKMP_FLAG_R ? "R" : ""));
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ndo->ndo_vflag) {
|
|
|
|
const struct isakmp_gen *ext;
|
|
|
|
|
|
|
|
ND_PRINT((ndo, ":"));
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2004-03-31 09:17:26 +00:00
|
|
|
/* regardless of phase... */
|
2009-03-21 16:23:46 +00:00
|
|
|
if (base->flags & ISAKMP_FLAG_E) {
|
2004-03-31 09:17:26 +00:00
|
|
|
/*
|
|
|
|
* encrypted, nothing we can do right now.
|
|
|
|
* we hope to decrypt the packet in the future...
|
|
|
|
*/
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo, " [encrypted %s]", NPSTR(base->np)));
|
2004-03-31 09:17:26 +00:00
|
|
|
goto done;
|
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
CHECKLEN(p + 1, base->np)
|
2004-03-31 09:17:26 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
np = base->np;
|
2017-01-31 19:17:06 +00:00
|
|
|
ext = (const struct isakmp_gen *)(p + 1);
|
2010-10-28 16:23:25 +00:00
|
|
|
ikev2_sub_print(ndo, base, np, ext, ep, phase, 0, 0, 0);
|
2004-03-31 09:17:26 +00:00
|
|
|
}
|
2000-01-30 00:45:58 +00:00
|
|
|
|
|
|
|
done:
|
2009-03-21 16:23:46 +00:00
|
|
|
if (ndo->ndo_vflag) {
|
|
|
|
if (ntohl(base->len) != length) {
|
|
|
|
ND_PRINT((ndo, " (len mismatch: isakmp %u/ip %u)",
|
2015-01-06 19:03:11 +00:00
|
|
|
(uint32_t)ntohl(base->len), length));
|
2000-01-30 00:45:58 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2005-05-29 18:17:16 +00:00
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
void
|
|
|
|
isakmp_print(netdissect_options *ndo,
|
|
|
|
const u_char *bp, u_int length,
|
|
|
|
const u_char *bp2)
|
|
|
|
{
|
|
|
|
const struct isakmp *p;
|
|
|
|
struct isakmp base;
|
|
|
|
const u_char *ep;
|
|
|
|
int major, minor;
|
|
|
|
|
2010-10-28 16:23:25 +00:00
|
|
|
#ifdef HAVE_LIBCRYPTO
|
|
|
|
/* initialize SAs */
|
|
|
|
if (ndo->ndo_sa_list_head == NULL) {
|
|
|
|
if (ndo->ndo_espsecret)
|
|
|
|
esp_print_decodesecret(ndo);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-03-21 16:23:46 +00:00
|
|
|
p = (const struct isakmp *)bp;
|
|
|
|
ep = ndo->ndo_snapend;
|
|
|
|
|
2017-01-31 19:17:06 +00:00
|
|
|
if ((const struct isakmp *)ep < p + 1) {
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"[|isakmp]"));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2015-01-06 19:03:11 +00:00
|
|
|
UNALIGNED_MEMCPY(&base, p, sizeof(base));
|
2009-03-21 16:23:46 +00:00
|
|
|
|
|
|
|
ND_PRINT((ndo,"isakmp"));
|
|
|
|
major = (base.vers & ISAKMP_VERS_MAJOR)
|
|
|
|
>> ISAKMP_VERS_MAJOR_SHIFT;
|
|
|
|
minor = (base.vers & ISAKMP_VERS_MINOR)
|
|
|
|
>> ISAKMP_VERS_MINOR_SHIFT;
|
|
|
|
|
|
|
|
if (ndo->ndo_vflag) {
|
|
|
|
ND_PRINT((ndo," %d.%d", major, minor));
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ndo->ndo_vflag) {
|
|
|
|
ND_PRINT((ndo," msgid "));
|
2017-01-31 19:17:06 +00:00
|
|
|
hexprint(ndo, (const uint8_t *)&base.msgid, sizeof(base.msgid));
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (1 < ndo->ndo_vflag) {
|
|
|
|
ND_PRINT((ndo," cookie "));
|
2017-01-31 19:17:06 +00:00
|
|
|
hexprint(ndo, (const uint8_t *)&base.i_ck, sizeof(base.i_ck));
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"->"));
|
2017-01-31 19:17:06 +00:00
|
|
|
hexprint(ndo, (const uint8_t *)&base.r_ck, sizeof(base.r_ck));
|
2009-03-21 16:23:46 +00:00
|
|
|
}
|
|
|
|
ND_PRINT((ndo,":"));
|
|
|
|
|
|
|
|
switch(major) {
|
|
|
|
case IKEv1_MAJOR_VERSION:
|
|
|
|
ikev1_print(ndo, bp, length, bp2, &base);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IKEv2_MAJOR_VERSION:
|
|
|
|
ikev2_print(ndo, bp, length, bp2, &base);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-05-29 18:17:16 +00:00
|
|
|
void
|
|
|
|
isakmp_rfc3948_print(netdissect_options *ndo,
|
|
|
|
const u_char *bp, u_int length,
|
|
|
|
const u_char *bp2)
|
|
|
|
{
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK(bp[0]);
|
2005-05-29 18:17:16 +00:00
|
|
|
if(length == 1 && bp[0]==0xff) {
|
|
|
|
ND_PRINT((ndo, "isakmp-nat-keep-alive"));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(length < 4) {
|
|
|
|
goto trunc;
|
|
|
|
}
|
2017-09-18 04:10:54 +00:00
|
|
|
ND_TCHECK(bp[3]);
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2005-05-29 18:17:16 +00:00
|
|
|
/*
|
|
|
|
* see if this is an IKE packet
|
|
|
|
*/
|
|
|
|
if(bp[0]==0 && bp[1]==0 && bp[2]==0 && bp[3]==0) {
|
|
|
|
ND_PRINT((ndo, "NONESP-encap: "));
|
|
|
|
isakmp_print(ndo, bp+4, length-4, bp2);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* must be an ESP packet */
|
|
|
|
{
|
|
|
|
int nh, enh, padlen;
|
|
|
|
int advance;
|
|
|
|
|
|
|
|
ND_PRINT((ndo, "UDP-encap: "));
|
|
|
|
|
|
|
|
advance = esp_print(ndo, bp, length, bp2, &enh, &padlen);
|
|
|
|
if(advance <= 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
bp += advance;
|
|
|
|
length -= advance + padlen;
|
|
|
|
nh = enh & 0xff;
|
2015-01-06 19:03:11 +00:00
|
|
|
|
2005-05-29 18:17:16 +00:00
|
|
|
ip_print_inner(ndo, bp, length, nh, bp2);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
trunc:
|
2009-03-21 16:23:46 +00:00
|
|
|
ND_PRINT((ndo,"[|isakmp]"));
|
2005-05-29 18:17:16 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Local Variables:
|
|
|
|
* c-style: whitesmith
|
|
|
|
* c-basic-offset: 8
|
|
|
|
* End:
|
|
|
|
*/
|