*
*/
-#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-isakmp.c,v 1.35 2002-09-05 21:25:42 guy Exp $ (LBL)";
-#endif
-
+#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+/* The functions from print-esp.c used in this file are only defined when both
+ * OpenSSL and evp.h are detected. Employ the same preprocessor device here.
+ */
+#ifndef HAVE_OPENSSL_EVP_H
+#undef HAVE_LIBCRYPTO
+#endif
+
#include <tcpdump-stdinc.h>
#include <string.h>
-#include <stdio.h>
-
-#include "isakmp.h"
-#include "ipsec_doi.h"
-#include "oakley.h"
#include "interface.h"
#include "addrtoname.h"
#include "extract.h" /* must come after interface.h */
#include "ip6.h"
#endif
-#ifndef HAVE_SOCKADDR_STORAGE
-#define sockaddr_storage sockaddr
+/* refer to RFC 2408 */
+
+typedef u_char cookie_t[8];
+typedef u_char msgid_t[4];
+
+#define PORT_ISAKMP 500
+
+/* 3.1 ISAKMP Header Format (IKEv1 and IKEv2)
+ 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
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! Initiator !
+ ! Cookie !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! Responder !
+ ! Cookie !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! Next Payload ! MjVer ! MnVer ! Exchange Type ! Flags !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! Message ID !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! Length !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+*/
+struct isakmp {
+ cookie_t i_ck; /* Initiator Cookie */
+ cookie_t r_ck; /* Responder Cookie */
+ u_int8_t np; /* Next Payload Type */
+ u_int8_t vers;
+#define ISAKMP_VERS_MAJOR 0xf0
+#define ISAKMP_VERS_MAJOR_SHIFT 4
+#define ISAKMP_VERS_MINOR 0x0f
+#define ISAKMP_VERS_MINOR_SHIFT 0
+ u_int8_t etype; /* Exchange Type */
+ u_int8_t flags; /* Flags */
+ msgid_t msgid;
+ u_int32_t len; /* Length */
+};
+
+/* Next Payload Type */
+#define ISAKMP_NPTYPE_NONE 0 /* NONE*/
+#define ISAKMP_NPTYPE_SA 1 /* Security Association */
+#define ISAKMP_NPTYPE_P 2 /* Proposal */
+#define ISAKMP_NPTYPE_T 3 /* Transform */
+#define ISAKMP_NPTYPE_KE 4 /* Key Exchange */
+#define ISAKMP_NPTYPE_ID 5 /* Identification */
+#define ISAKMP_NPTYPE_CERT 6 /* Certificate */
+#define ISAKMP_NPTYPE_CR 7 /* Certificate Request */
+#define ISAKMP_NPTYPE_HASH 8 /* Hash */
+#define ISAKMP_NPTYPE_SIG 9 /* Signature */
+#define ISAKMP_NPTYPE_NONCE 10 /* Nonce */
+#define ISAKMP_NPTYPE_N 11 /* Notification */
+#define ISAKMP_NPTYPE_D 12 /* Delete */
+#define ISAKMP_NPTYPE_VID 13 /* Vendor ID */
+#define ISAKMP_NPTYPE_v2E 46 /* v2 Encrypted payload */
+
+#define IKEv1_MAJOR_VERSION 1
+#define IKEv1_MINOR_VERSION 0
+
+#define IKEv2_MAJOR_VERSION 2
+#define IKEv2_MINOR_VERSION 0
+
+/* Flags */
+#define ISAKMP_FLAG_E 0x01 /* Encryption Bit */
+#define ISAKMP_FLAG_C 0x02 /* Commit Bit */
+#define ISAKMP_FLAG_extra 0x04
+
+/* IKEv2 */
+#define ISAKMP_FLAG_I (1 << 3) /* (I)nitiator */
+#define ISAKMP_FLAG_V (1 << 4) /* (V)ersion */
+#define ISAKMP_FLAG_R (1 << 5) /* (R)esponse */
+
+
+/* 3.2 Payload Generic Header
+ 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
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! Next Payload ! RESERVED ! Payload Length !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+*/
+struct isakmp_gen {
+ u_int8_t np; /* Next Payload */
+ u_int8_t critical; /* bit 7 - critical, rest is RESERVED */
+ u_int16_t len; /* Payload Length */
+};
+
+/* 3.3 Data Attributes
+ 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
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ !A! Attribute Type ! AF=0 Attribute Length !
+ !F! ! AF=1 Attribute Value !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ . AF=0 Attribute Value .
+ . AF=1 Not Transmitted .
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+*/
+struct isakmp_data {
+ u_int16_t type; /* defined by DOI-spec, and Attribute Format */
+ u_int16_t lorv; /* if f equal 1, Attribute Length */
+ /* if f equal 0, Attribute Value */
+ /* if f equal 1, Attribute Value */
+};
+
+/* 3.4 Security Association Payload */
+ /* MAY NOT be used, because of being defined in ipsec-doi. */
+ /*
+ If the current payload is the last in the message,
+ then the value of the next payload field will be 0.
+ This field MUST NOT contain the
+ values for the Proposal or Transform payloads as they are considered
+ part of the security association negotiation. For example, this
+ field would contain the value "10" (Nonce payload) in the first
+ message of a Base Exchange (see Section 4.4) and the value "0" in the
+ first message of an Identity Protect Exchange (see Section 4.5).
+ */
+struct ikev1_pl_sa {
+ struct isakmp_gen h;
+ u_int32_t doi; /* Domain of Interpretation */
+ u_int32_t sit; /* Situation */
+};
+
+/* 3.5 Proposal Payload */
+ /*
+ The value of the next payload field MUST only contain the value "2"
+ or "0". If there are additional Proposal payloads in the message,
+ then this field will be 2. If the current Proposal payload is the
+ last within the security association proposal, then this field will
+ be 0.
+ */
+struct ikev1_pl_p {
+ struct isakmp_gen h;
+ u_int8_t p_no; /* Proposal # */
+ u_int8_t prot_id; /* Protocol */
+ u_int8_t spi_size; /* SPI Size */
+ u_int8_t num_t; /* Number of Transforms */
+ /* SPI */
+};
+
+/* 3.6 Transform Payload */
+ /*
+ The value of the next payload field MUST only contain the value "3"
+ or "0". If there are additional Transform payloads in the proposal,
+ then this field will be 3. If the current Transform payload is the
+ last within the proposal, then this field will be 0.
+ */
+struct ikev1_pl_t {
+ struct isakmp_gen h;
+ u_int8_t t_no; /* Transform # */
+ u_int8_t t_id; /* Transform-Id */
+ u_int16_t reserved; /* RESERVED2 */
+ /* SA Attributes */
+};
+
+/* 3.7 Key Exchange Payload */
+struct ikev1_pl_ke {
+ struct isakmp_gen h;
+ /* Key Exchange Data */
+};
+
+/* 3.8 Identification Payload */
+ /* MUST NOT to be used, because of being defined in ipsec-doi. */
+struct ikev1_pl_id {
+ struct isakmp_gen h;
+ union {
+ u_int8_t id_type; /* ID Type */
+ u_int32_t doi_data; /* DOI Specific ID Data */
+ } d;
+ /* Identification Data */
+};
+
+/* 3.9 Certificate Payload */
+struct ikev1_pl_cert {
+ struct isakmp_gen h;
+ u_int8_t encode; /* Cert Encoding */
+ char cert; /* Certificate Data */
+ /*
+ This field indicates the type of
+ certificate or certificate-related information contained in the
+ Certificate Data field.
+ */
+};
+
+/* 3.10 Certificate Request Payload */
+struct ikev1_pl_cr {
+ struct isakmp_gen h;
+ u_int8_t num_cert; /* # Cert. Types */
+ /*
+ Certificate Types (variable length)
+ -- Contains a list of the types of certificates requested,
+ sorted in order of preference. Each individual certificate
+ type is 1 octet. This field is NOT requiredo
+ */
+ /* # Certificate Authorities (1 octet) */
+ /* Certificate Authorities (variable length) */
+};
+
+/* 3.11 Hash Payload */
+ /* may not be used, because of having only data. */
+struct ikev1_pl_hash {
+ struct isakmp_gen h;
+ /* Hash Data */
+};
+
+/* 3.12 Signature Payload */
+ /* may not be used, because of having only data. */
+struct ikev1_pl_sig {
+ struct isakmp_gen h;
+ /* Signature Data */
+};
+
+/* 3.13 Nonce Payload */
+ /* may not be used, because of having only data. */
+struct ikev1_pl_nonce {
+ struct isakmp_gen h;
+ /* Nonce Data */
+};
+
+/* 3.14 Notification Payload */
+struct ikev1_pl_n {
+ struct isakmp_gen h;
+ u_int32_t doi; /* Domain of Interpretation */
+ u_int8_t prot_id; /* Protocol-ID */
+ u_int8_t spi_size; /* SPI Size */
+ u_int16_t type; /* Notify Message Type */
+ /* SPI */
+ /* Notification Data */
+};
+
+/* 3.14.1 Notify Message Types */
+/* NOTIFY MESSAGES - ERROR TYPES */
+#define ISAKMP_NTYPE_INVALID_PAYLOAD_TYPE 1
+#define ISAKMP_NTYPE_DOI_NOT_SUPPORTED 2
+#define ISAKMP_NTYPE_SITUATION_NOT_SUPPORTED 3
+#define ISAKMP_NTYPE_INVALID_COOKIE 4
+#define ISAKMP_NTYPE_INVALID_MAJOR_VERSION 5
+#define ISAKMP_NTYPE_INVALID_MINOR_VERSION 6
+#define ISAKMP_NTYPE_INVALID_EXCHANGE_TYPE 7
+#define ISAKMP_NTYPE_INVALID_FLAGS 8
+#define ISAKMP_NTYPE_INVALID_MESSAGE_ID 9
+#define ISAKMP_NTYPE_INVALID_PROTOCOL_ID 10
+#define ISAKMP_NTYPE_INVALID_SPI 11
+#define ISAKMP_NTYPE_INVALID_TRANSFORM_ID 12
+#define ISAKMP_NTYPE_ATTRIBUTES_NOT_SUPPORTED 13
+#define ISAKMP_NTYPE_NO_PROPOSAL_CHOSEN 14
+#define ISAKMP_NTYPE_BAD_PROPOSAL_SYNTAX 15
+#define ISAKMP_NTYPE_PAYLOAD_MALFORMED 16
+#define ISAKMP_NTYPE_INVALID_KEY_INFORMATION 17
+#define ISAKMP_NTYPE_INVALID_ID_INFORMATION 18
+#define ISAKMP_NTYPE_INVALID_CERT_ENCODING 19
+#define ISAKMP_NTYPE_INVALID_CERTIFICATE 20
+#define ISAKMP_NTYPE_BAD_CERT_REQUEST_SYNTAX 21
+#define ISAKMP_NTYPE_INVALID_CERT_AUTHORITY 22
+#define ISAKMP_NTYPE_INVALID_HASH_INFORMATION 23
+#define ISAKMP_NTYPE_AUTHENTICATION_FAILED 24
+#define ISAKMP_NTYPE_INVALID_SIGNATURE 25
+#define ISAKMP_NTYPE_ADDRESS_NOTIFICATION 26
+
+/* 3.15 Delete Payload */
+struct ikev1_pl_d {
+ struct isakmp_gen h;
+ u_int32_t doi; /* Domain of Interpretation */
+ u_int8_t prot_id; /* Protocol-Id */
+ u_int8_t spi_size; /* SPI Size */
+ u_int16_t num_spi; /* # of SPIs */
+ /* SPI(es) */
+};
+
+struct ikev1_ph1tab {
+ struct ikev1_ph1 *head;
+ struct ikev1_ph1 *tail;
+ int len;
+};
+
+struct isakmp_ph2tab {
+ struct ikev1_ph2 *head;
+ struct ikev1_ph2 *tail;
+ int len;
+};
+
+/* IKEv2 (RFC4306) */
+
+/* 3.3 Security Association Payload -- generic header */
+/* 3.3.1. Proposal Substructure */
+struct ikev2_p {
+ struct isakmp_gen h;
+ u_int8_t p_no; /* Proposal # */
+ u_int8_t prot_id; /* Protocol */
+ u_int8_t spi_size; /* SPI Size */
+ u_int8_t num_t; /* Number of Transforms */
+};
+
+/* 3.3.2. Transform Substructure */
+struct ikev2_t {
+ struct isakmp_gen h;
+ u_int8_t t_type; /* Transform Type (ENCR,PRF,INTEG,etc.*/
+ u_int8_t res2; /* reserved byte */
+ u_int16_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,
+ IV2_T_ESN = 5,
+};
+
+/* 3.4. Key Exchange Payload */
+struct ikev2_ke {
+ struct isakmp_gen h;
+ u_int16_t ke_group;
+ u_int16_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,
+ ID_KEY_ID=11,
+};
+struct ikev2_id {
+ struct isakmp_gen h;
+ u_int8_t type; /* ID type */
+ u_int8_t res1;
+ u_int16_t res2;
+ /* SPI */
+ /* Notification Data */
+};
+
+/* 3.10 Notification Payload */
+struct ikev2_n {
+ struct isakmp_gen h;
+ u_int8_t prot_id; /* Protocol-ID */
+ u_int8_t spi_size; /* SPI Size */
+ u_int16_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 {
+ u_int16_t type;
+ char *msg;
+};
+
+/* 3.8 Notification Payload */
+struct ikev2_auth {
+ struct isakmp_gen h;
+ u_int8_t auth_method; /* Protocol-ID */
+ u_int8_t reserved[3];
+ /* authentication data */
+};
+
+enum ikev2_auth_type {
+ IV2_RSA_SIG = 1,
+ IV2_SHARED = 2,
+ IV2_DSS_SIG = 3,
+};
+
+/* refer to RFC 2409 */
+
+#if 0
+/* isakmp sa structure */
+struct oakley_sa {
+ u_int8_t proto_id; /* OAKLEY */
+ vchar_t *spi; /* spi */
+ u_int8_t dhgrp; /* DH; group */
+ u_int8_t auth_t; /* method of authentication */
+ u_int8_t prf_t; /* type of prf */
+ u_int8_t hash_t; /* type of hash */
+ u_int8_t enc_t; /* type of cipher */
+ u_int8_t life_t; /* type of duration of lifetime */
+ u_int32_t ldur; /* life duration */
+};
#endif
-static const u_char *isakmp_sa_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_p_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_t_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_ke_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_id_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_cert_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_cr_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_sig_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_hash_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_nonce_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_n_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_d_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_vid_print(const struct isakmp_gen *,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_sub0_print(u_char, const struct isakmp_gen *,
+/* 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;
+ u_int32_t doi; /* Domain of Interpretation */
+ u_int32_t sit; /* Situation */
+};
+
+struct ipsecdoi_secrecy_h {
+ u_int16_t len;
+ u_int16_t reserved;
+};
+
+/* 4.6.2.1 Identification Type Values */
+struct ipsecdoi_id {
+ struct isakmp_gen h;
+ u_int8_t type; /* ID Type */
+ u_int8_t proto_id; /* Protocol ID */
+ u_int16_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
+
+#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, \
+ u_int32_t phase,\
+ u_int32_t doi0, \
+ u_int32_t proto0, int depth)
+
+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);
+
+static const u_char *ikev2_e_print(netdissect_options *ndo,
+ struct isakmp *base,
+ u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len,
+ const u_char *end_pointer,
+ u_int32_t phase,
+ u_int32_t doi0,
+ u_int32_t proto0, int depth);
+
+
+static const u_char *ike_sub0_print(netdissect_options *ndo,u_char, const struct isakmp_gen *,
const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_sub_print(u_char, const struct isakmp_gen *,
+static const u_char *ikev1_sub_print(netdissect_options *ndo,u_char, const struct isakmp_gen *,
const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
+
+static const u_char *ikev2_sub_print(netdissect_options *ndo,
+ struct isakmp *base,
+ u_char np, const struct isakmp_gen *ext,
+ const u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto,
+ int depth);
+
+
static char *numstr(int);
-static void safememcpy(void *, const void *, size_t);
+
+static void
+ikev1_print(netdissect_options *ndo,
+ const u_char *bp, u_int length,
+ const u_char *bp2, struct isakmp *base);
#define MAXINITIATORS 20
int ninitiator = 0;
+union inaddr_u {
+ struct in_addr in4;
+#ifdef INET6
+ struct in6_addr in6;
+#endif
+};
struct {
cookie_t initiator;
- struct sockaddr_storage iaddr;
- struct sockaddr_storage raddr;
+ u_int version;
+ union inaddr_u iaddr;
+ union inaddr_u raddr;
} cookiecache[MAXINITIATORS];
/* protocol id */
/* isakmp->np */
static const char *npstr[] = {
- "none", "sa", "p", "t", "ke", "id", "cert", "cr", "hash",
- "sig", "nonce", "n", "d", "vid"
+ "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 */
+
};
/* isakmp->np */
-static const u_char *(*npfunc[])(const struct isakmp_gen *, const u_char *,
- u_int32_t, u_int32_t, u_int32_t, int) = {
+static const u_char *(*npfunc[])(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len,
+ const u_char *end_pointer,
+ u_int32_t phase,
+ u_int32_t doi0,
+ u_int32_t proto0, int depth) = {
NULL,
- isakmp_sa_print,
- isakmp_p_print,
- isakmp_t_print,
- isakmp_ke_print,
- isakmp_id_print,
- isakmp_cert_print,
- isakmp_cr_print,
- isakmp_hash_print,
- isakmp_sig_print,
- isakmp_nonce_print,
- isakmp_n_print,
- isakmp_d_print,
- isakmp_vid_print,
+ 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 */
+ NULL, /* ikev2_e_print,*/ /* 46 - special */
+ ikev2_cp_print, /* 47 */
+ ikev2_eap_print, /* 48 */
};
/* isakmp->etype */
static const char *etypestr[] = {
- "none", "base", "ident", "auth", "agg", "inf", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- "oakley-quick", "oakley-newgroup",
+/* 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 */
};
#define STR_OR_ID(x, tab) \
#define NPSTR(x) STR_OR_ID(x, npstr)
#define ETYPESTR(x) STR_OR_ID(x, etypestr)
+#define CHECKLEN(p, np) \
+ if (ep < (u_char *)(p)) { \
+ ND_PRINT((ndo," [|%s]", NPSTR(np))); \
+ goto done; \
+ }
+
+
#define NPFUNC(x) \
(((x) < sizeof(npfunc)/sizeof(npfunc[0]) && npfunc[(x)]) \
? npfunc[(x)] : NULL)
{
int i;
struct ip *ip;
- struct sockaddr_in *sin;
#ifdef INET6
struct ip6_hdr *ip6;
- struct sockaddr_in6 *sin6;
#endif
i = cookie_find(in);
ip = (struct ip *)bp2;
switch (IP_V(ip)) {
case 4:
- memset(&cookiecache[ninitiator].iaddr, 0,
- sizeof(cookiecache[ninitiator].iaddr));
- memset(&cookiecache[ninitiator].raddr, 0,
- sizeof(cookiecache[ninitiator].raddr));
-
- sin = (struct sockaddr_in *)&cookiecache[ninitiator].iaddr;
-#ifdef HAVE_SOCKADDR_SA_LEN
- sin->sin_len = sizeof(struct sockaddr_in);
-#endif
- sin->sin_family = AF_INET;
- memcpy(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src));
- sin = (struct sockaddr_in *)&cookiecache[ninitiator].raddr;
-#ifdef HAVE_SOCKADDR_SA_LEN
- sin->sin_len = sizeof(struct sockaddr_in);
-#endif
- sin->sin_family = AF_INET;
- memcpy(&sin->sin_addr, &ip->ip_dst, sizeof(ip->ip_dst));
+ 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));
break;
#ifdef INET6
case 6:
- memset(&cookiecache[ninitiator].iaddr, 0,
- sizeof(cookiecache[ninitiator].iaddr));
- memset(&cookiecache[ninitiator].raddr, 0,
- sizeof(cookiecache[ninitiator].raddr));
-
ip6 = (struct ip6_hdr *)bp2;
- sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].iaddr;
-#ifdef HAVE_SOCKADDR_SA_LEN
- sin6->sin6_len = sizeof(struct sockaddr_in6);
-#endif
- sin6->sin6_family = AF_INET6;
- memcpy(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src));
- sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].raddr;
-#ifdef HAVE_SOCKADDR_SA_LEN
- sin6->sin6_len = sizeof(struct sockaddr_in6);
-#endif
- sin6->sin6_family = AF_INET6;
- memcpy(&sin6->sin6_addr, &ip6->ip6_dst, sizeof(ip6->ip6_dst));
+ 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));
break;
#endif
default:
return;
}
- memcpy(&cookiecache[ninitiator].initiator, in, sizeof(*in));
+ UNALIGNED_MEMCPY(&cookiecache[ninitiator].initiator, in, sizeof(*in));
ninitiator = (ninitiator + 1) % MAXINITIATORS;
}
static int
cookie_sidecheck(int i, const u_char *bp2, int initiator)
{
- struct sockaddr_storage ss;
- struct sockaddr *sa;
struct ip *ip;
- struct sockaddr_in *sin;
#ifdef INET6
struct ip6_hdr *ip6;
- struct sockaddr_in6 *sin6;
#endif
- int salen;
- memset(&ss, 0, sizeof(ss));
ip = (struct ip *)bp2;
switch (IP_V(ip)) {
case 4:
- sin = (struct sockaddr_in *)&ss;
-#ifdef HAVE_SOCKADDR_SA_LEN
- sin->sin_len = sizeof(struct sockaddr_in);
-#endif
- sin->sin_family = AF_INET;
- memcpy(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src));
+ 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;
+ }
break;
#ifdef INET6
case 6:
+ if (cookiecache[i].version != 6)
+ return 0;
ip6 = (struct ip6_hdr *)bp2;
- sin6 = (struct sockaddr_in6 *)&ss;
-#ifdef HAVE_SOCKADDR_SA_LEN
- sin6->sin6_len = sizeof(struct sockaddr_in6);
-#endif
- sin6->sin6_family = AF_INET6;
- memcpy(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src));
+ 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;
+ }
break;
-#endif
+#endif /* INET6 */
default:
- return 0;
+ break;
}
- sa = (struct sockaddr *)&ss;
- if (initiator) {
- if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].iaddr)->sa_family)
- return 0;
-#ifdef HAVE_SOCKADDR_SA_LEN
- salen = sa->sa_len;
-#else
-#ifdef INET6
- if (sa->sa_family == AF_INET6)
- salen = sizeof(struct sockaddr_in6);
- else
- salen = sizeof(struct sockaddr);
-#else
- salen = sizeof(struct sockaddr);
-#endif
-#endif
- if (memcmp(&ss, &cookiecache[i].iaddr, salen) == 0)
- return 1;
- } else {
- if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].raddr)->sa_family)
- return 0;
-#ifdef HAVE_SOCKADDR_SA_LEN
- salen = sa->sa_len;
-#else
-#ifdef INET6
- if (sa->sa_family == AF_INET6)
- salen = sizeof(struct sockaddr_in6);
- else
- salen = sizeof(struct sockaddr);
-#else
- salen = sizeof(struct sockaddr);
-#endif
-#endif
- if (memcmp(&ss, &cookiecache[i].raddr, salen) == 0)
- return 1;
- }
return 0;
}
static void
-rawprint(caddr_t loc, size_t len)
+hexprint(netdissect_options *ndo, caddr_t loc, size_t len)
{
- static u_char *p;
+ u_char *p;
size_t i;
p = (u_char *)loc;
for (i = 0; i < len; i++)
- printf("%02x", p[i] & 0xff);
+ ND_PRINT((ndo,"%02x", p[i] & 0xff));
+}
+
+static int
+rawprint(netdissect_options *ndo, caddr_t loc, size_t len)
+{
+ ND_TCHECK2(*loc, len);
+
+ hexprint(ndo, loc, len);
+ return 1;
+trunc:
+ return 0;
+}
+
+
+/*
+ * returns false if we run out of data buffer
+ */
+static int ike_show_somedata(struct netdissect_options *ndo,
+ 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;
+ }
+
+ /* really shouldn't happen because of above */
+ if(end < cp + len) {
+ end = cp+len;
+ elen = ep - end;
+ }
+
+ ND_PRINT((ndo," data=("));
+ if(!rawprint(ndo, (caddr_t)(cp), len)) goto trunc;
+ ND_PRINT((ndo, "..."));
+ if(elen) {
+ if(!rawprint(ndo, (caddr_t)(end), elen)) goto trunc;
+ }
+ ND_PRINT((ndo,")"));
+ return 1;
+
+trunc:
+ return 0;
}
struct attrmap {
};
static const u_char *
-isakmp_attrmap_print(const u_char *p, const u_char *ep,
- const struct attrmap *map, size_t nmap)
+ikev1_attrmap_print(netdissect_options *ndo,
+ const u_char *p, const u_char *ep,
+ const struct attrmap *map, size_t nmap)
{
- u_int16_t *q;
int totlen;
u_int32_t t, v;
- q = (u_int16_t *)p;
if (p[0] & 0x80)
totlen = 4;
else
- totlen = 4 + ntohs(q[1]);
+ totlen = 4 + EXTRACT_16BITS(&p[2]);
if (ep < p + totlen) {
- printf("[|attr]");
+ ND_PRINT((ndo,"[|attr]"));
return ep + 1;
}
- printf("(");
- t = ntohs(q[0]) & 0x7fff;
+ ND_PRINT((ndo,"("));
+ t = EXTRACT_16BITS(&p[0]) & 0x7fff;
if (map && t < nmap && map[t].type)
- printf("type=%s ", map[t].type);
+ ND_PRINT((ndo,"type=%s ", map[t].type));
else
- printf("type=#%d ", t);
+ ND_PRINT((ndo,"type=#%d ", t));
if (p[0] & 0x80) {
- printf("value=");
- v = ntohs(q[1]);
+ ND_PRINT((ndo,"value="));
+ v = EXTRACT_16BITS(&p[2]);
if (map && t < nmap && v < map[t].nvalue && map[t].value[v])
- printf("%s", map[t].value[v]);
+ ND_PRINT((ndo,"%s", map[t].value[v]));
else
- rawprint((caddr_t)&q[1], 2);
+ rawprint(ndo, (caddr_t)&p[2], 2);
} else {
- printf("len=%d value=", ntohs(q[1]));
- rawprint((caddr_t)&p[4], ntohs(q[1]));
+ ND_PRINT((ndo,"len=%d value=", EXTRACT_16BITS(&p[2])));
+ rawprint(ndo, (caddr_t)&p[4], EXTRACT_16BITS(&p[2]));
}
- printf(")");
+ ND_PRINT((ndo,")"));
return p + totlen;
}
static const u_char *
-isakmp_attr_print(const u_char *p, const u_char *ep)
+ikev1_attr_print(netdissect_options *ndo, const u_char *p, const u_char *ep)
{
- u_int16_t *q;
int totlen;
u_int32_t t;
- q = (u_int16_t *)p;
if (p[0] & 0x80)
totlen = 4;
else
- totlen = 4 + ntohs(q[1]);
+ totlen = 4 + EXTRACT_16BITS(&p[2]);
if (ep < p + totlen) {
- printf("[|attr]");
+ ND_PRINT((ndo,"[|attr]"));
return ep + 1;
}
- printf("(");
- t = ntohs(q[0]) & 0x7fff;
- printf("type=#%d ", t);
+ ND_PRINT((ndo,"("));
+ t = EXTRACT_16BITS(&p[0]) & 0x7fff;
+ ND_PRINT((ndo,"type=#%d ", t));
if (p[0] & 0x80) {
- printf("value=");
- t = q[1];
- rawprint((caddr_t)&q[1], 2);
+ ND_PRINT((ndo,"value="));
+ t = p[2];
+ rawprint(ndo, (caddr_t)&p[2], 2);
} else {
- printf("len=%d value=", ntohs(q[1]));
- rawprint((caddr_t)&p[2], ntohs(q[1]));
+ ND_PRINT((ndo,"len=%d value=", EXTRACT_16BITS(&p[2])));
+ rawprint(ndo, (caddr_t)&p[4], EXTRACT_16BITS(&p[2]));
}
- printf(")");
+ ND_PRINT((ndo,")"));
return p + totlen;
}
static const u_char *
-isakmp_sa_print(const struct isakmp_gen *ext, const u_char *ep, u_int32_t phase,
- u_int32_t doi0 _U_, u_int32_t proto0, int depth)
+ikev1_sa_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_,
+ const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_,
+ u_int32_t proto0, int depth)
{
- const struct isakmp_pl_sa *p;
- struct isakmp_pl_sa sa;
- const u_int32_t *q;
+ const struct ikev1_pl_sa *p;
+ struct ikev1_pl_sa sa;
u_int32_t doi, sit, ident;
const u_char *cp, *np;
int t;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_SA));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SA)));
- p = (struct isakmp_pl_sa *)ext;
- safememcpy(&sa, ext, sizeof(sa));
+ p = (struct ikev1_pl_sa *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&sa, ext, sizeof(sa));
doi = ntohl(sa.doi);
sit = ntohl(sa.sit);
if (doi != 1) {
- printf(" doi=%d", doi);
- printf(" situation=%u", (u_int32_t)ntohl(sa.sit));
+ ND_PRINT((ndo," doi=%d", doi));
+ ND_PRINT((ndo," situation=%u", (u_int32_t)ntohl(sa.sit)));
return (u_char *)(p + 1);
}
- printf(" doi=ipsec");
- q = (u_int32_t *)&sa.sit;
- printf(" situation=");
+ ND_PRINT((ndo," doi=ipsec"));
+ ND_PRINT((ndo," situation="));
t = 0;
if (sit & 0x01) {
- printf("identity");
+ ND_PRINT((ndo,"identity"));
t++;
}
if (sit & 0x02) {
- printf("%ssecrecy", t ? "+" : "");
+ ND_PRINT((ndo,"%ssecrecy", t ? "+" : ""));
t++;
}
if (sit & 0x04)
- printf("%sintegrity", t ? "+" : "");
+ ND_PRINT((ndo,"%sintegrity", t ? "+" : ""));
np = (u_char *)ext + sizeof(sa);
if (sit != 0x01) {
- safememcpy(&ident, ext + 1, sizeof(ident));
- printf(" ident=%u", (u_int32_t)ntohl(ident));
+ ND_TCHECK2(*(ext + 1), sizeof(ident));
+ UNALIGNED_MEMCPY(&ident, ext + 1, sizeof(ident));
+ ND_PRINT((ndo," ident=%u", (u_int32_t)ntohl(ident)));
np += sizeof(ident);
}
ext = (struct isakmp_gen *)np;
+ ND_TCHECK(*ext);
- cp = isakmp_sub_print(ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0,
+ cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0,
depth);
return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SA)));
+ return NULL;
}
static const u_char *
-isakmp_p_print(const struct isakmp_gen *ext, const u_char *ep, u_int32_t phase,
- u_int32_t doi0, u_int32_t proto0 _U_, int depth)
+ikev1_p_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep, u_int32_t phase, u_int32_t doi0,
+ u_int32_t proto0 _U_, int depth)
{
- const struct isakmp_pl_p *p;
- struct isakmp_pl_p prop;
+ const struct ikev1_pl_p *p;
+ struct ikev1_pl_p prop;
const u_char *cp;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_P));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_P)));
- p = (struct isakmp_pl_p *)ext;
- safememcpy(&prop, ext, sizeof(prop));
- printf(" #%d protoid=%s transform=%d",
- prop.p_no, PROTOIDSTR(prop.prot_id), prop.num_t);
+ p = (struct ikev1_pl_p *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&prop, ext, sizeof(prop));
+ ND_PRINT((ndo," #%d protoid=%s transform=%d",
+ prop.p_no, PROTOIDSTR(prop.prot_id), prop.num_t));
if (prop.spi_size) {
- printf(" spi=");
- rawprint((caddr_t)(p + 1), prop.spi_size);
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), prop.spi_size))
+ goto trunc;
}
ext = (struct isakmp_gen *)((u_char *)(p + 1) + prop.spi_size);
+ ND_TCHECK(*ext);
- cp = isakmp_sub_print(ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
- prop.prot_id, depth);
+ cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
+ prop.prot_id, depth);
return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
+ return NULL;
}
-static const char *isakmp_p_map[] = {
+static const char *ikev1_p_map[] = {
NULL, "ike",
};
+static const char *ikev2_t_type_map[]={
+ NULL, "encr", "prf", "integ", "dh", "esn"
+};
+
static const char *ah_p_map[] = {
NULL, "(reserved)", "md5", "sha", "1des",
"sha2-256", "sha2-384", "sha2-512",
};
+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 */
+};
+
static const char *esp_p_map[] = {
NULL, "1des-iv64", "1des", "3des", "rc5", "idea", "cast",
"blowfish", "3idea", "1des-iv32", "rc4", "null", "aes"
NULL, "oui", "deflate", "lzs",
};
-const struct attrmap ipsec_t_map[] = {
+static const struct attrmap ipsec_t_map[] = {
{ NULL, 0, { NULL } },
{ "lifetype", 3, { NULL, "sec", "kb", }, },
{ "life", 0, { NULL } },
- { "group desc", 5, { NULL, "modp768", "modp1024", "EC2N 2^155",
- "EC2N 2^185", }, },
+ { "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 */
+ }, },
{ "enc mode", 3, { NULL, "tunnel", "transport", }, },
{ "auth", 5, { NULL, "hmac-md5", "hmac-sha1", "1des-mac", "keyed", }, },
{ "keylen", 0, { NULL } },
{ "privalg", 0, { NULL } },
};
-const struct attrmap oakley_t_map[] = {
+static const struct attrmap encr_t_map[] = {
+ { 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 }},
+};
+
+static const struct attrmap oakley_t_map[] = {
{ NULL, 0, { NULL } },
{ "enc", 8, { NULL, "1des", "idea", "blowfish", "rc5",
"3des", "cast", "aes", }, },
"sha2-256", "sha2-384", "sha2-512", }, },
{ "auth", 6, { NULL, "preshared", "dss", "rsa sig", "rsa enc",
"rsa enc revised", }, },
- { "group desc", 5, { NULL, "modp768", "modp1024", "EC2N 2^155",
- "EC2N 2^185", }, },
+ { "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 */
+ }, },
{ "group type", 4, { NULL, "MODP", "ECP", "EC2N", }, },
{ "group prime", 0, { NULL } },
{ "group gen1", 0, { NULL } },
};
static const u_char *
-isakmp_t_print(const struct isakmp_gen *ext, const u_char *ep,
- u_int32_t phase _U_, u_int32_t doi _U_, u_int32_t proto,
- int depth _U_)
+ikev1_t_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len,
+ const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto, int depth _U_)
{
- const struct isakmp_pl_t *p;
- struct isakmp_pl_t t;
+ const struct ikev1_pl_t *p;
+ struct ikev1_pl_t t;
const u_char *cp;
const char *idstr;
const struct attrmap *map;
size_t nmap;
const u_char *ep2;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_T));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_T)));
- p = (struct isakmp_pl_t *)ext;
- safememcpy(&t, ext, sizeof(t));
+ p = (struct ikev1_pl_t *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&t, ext, sizeof(t));
switch (proto) {
case 1:
- idstr = STR_OR_ID(t.t_id, isakmp_p_map);
+ idstr = STR_OR_ID(t.t_id, ikev1_p_map);
map = oakley_t_map;
nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
break;
}
if (idstr)
- printf(" #%d id=%s ", t.t_no, idstr);
+ ND_PRINT((ndo," #%d id=%s ", t.t_no, idstr));
else
- printf(" #%d id=%d ", t.t_no, t.t_id);
+ ND_PRINT((ndo," #%d id=%d ", t.t_no, t.t_id));
cp = (u_char *)(p + 1);
- ep2 = (u_char *)p + ntohs(t.h.len);
+ ep2 = (u_char *)p + item_len;
while (cp < ep && cp < ep2) {
if (map && nmap) {
- cp = isakmp_attrmap_print(cp, (ep < ep2) ? ep : ep2,
+ cp = ikev1_attrmap_print(ndo, cp, (ep < ep2) ? ep : ep2,
map, nmap);
} else
- cp = isakmp_attr_print(cp, (ep < ep2) ? ep : ep2);
+ cp = ikev1_attr_print(ndo, cp, (ep < ep2) ? ep : ep2);
}
if (ep < ep2)
- printf("...");
+ ND_PRINT((ndo,"..."));
return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T)));
+ return NULL;
}
static const u_char *
-isakmp_ke_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi _U_, u_int32_t proto _U_,
- int depth _U_)
+ikev1_ke_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_KE));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_KE)));
- safememcpy(&e, ext, sizeof(e));
- printf(" key len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4);
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ND_PRINT((ndo," key len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
}
return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_KE)));
+ return NULL;
}
static const u_char *
-isakmp_id_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase, u_int32_t doi _U_, u_int32_t proto _U_,
- int depth _U_)
+ikev1_id_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
#define USE_IPSECDOI_IN_PHASE1 1
- const struct isakmp_pl_id *p;
- struct isakmp_pl_id id;
+ const struct ikev1_pl_id *p;
+ struct ikev1_pl_id id;
static const char *idtypestr[] = {
"IPv4", "IPv4net", "IPv6", "IPv6net",
};
int len;
const u_char *data;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_ID));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_ID)));
- p = (struct isakmp_pl_id *)ext;
- safememcpy(&id, ext, sizeof(id));
- if (sizeof(*p) < id.h.len)
+ p = (struct ikev1_pl_id *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&id, ext, sizeof(id));
+ if (sizeof(*p) < item_len) {
data = (u_char *)(p + 1);
- else
+ len = item_len - sizeof(*p);
+ } else {
data = NULL;
- len = ntohs(id.h.len) - sizeof(*p);
+ len = 0;
+ }
#if 0 /*debug*/
- printf(" [phase=%d doi=%d proto=%d]", phase, doi, proto);
+ ND_PRINT((ndo," [phase=%d doi=%d proto=%d]", phase, doi, proto));
#endif
switch (phase) {
#ifndef USE_IPSECDOI_IN_PHASE1
case 1:
#endif
default:
- printf(" idtype=%s", STR_OR_ID(id.d.id_type, idtypestr));
- printf(" doi_data=%u",
- (u_int32_t)(ntohl(id.d.doi_data) & 0xffffff));
+ ND_PRINT((ndo," idtype=%s", STR_OR_ID(id.d.id_type, idtypestr)));
+ ND_PRINT((ndo," doi_data=%u",
+ (u_int32_t)(ntohl(id.d.doi_data) & 0xffffff)));
break;
#ifdef USE_IPSECDOI_IN_PHASE1
struct protoent *pe;
p = (struct ipsecdoi_id *)ext;
- safememcpy(&id, ext, sizeof(id));
- printf(" idtype=%s", STR_OR_ID(id.type, ipsecidtypestr));
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&id, ext, sizeof(id));
+ ND_PRINT((ndo," idtype=%s", STR_OR_ID(id.type, ipsecidtypestr)));
if (id.proto_id) {
#ifndef WIN32
setprotoent(1);
#endif /* WIN32 */
pe = getprotobynumber(id.proto_id);
if (pe)
- printf(" protoid=%s", pe->p_name);
+ ND_PRINT((ndo," protoid=%s", pe->p_name));
#ifndef WIN32
endprotoent();
#endif /* WIN32 */
} else {
/* it DOES NOT mean IPPROTO_IP! */
- printf(" protoid=%s", "0");
+ ND_PRINT((ndo," protoid=%s", "0"));
}
- printf(" port=%d", ntohs(id.port));
+ ND_PRINT((ndo," port=%d", ntohs(id.port)));
if (!len)
break;
+ if (data == NULL)
+ goto trunc;
+ ND_TCHECK2(*data, len);
switch (id.type) {
case IPSECDOI_ID_IPV4_ADDR:
- printf(" len=%d %s", len, ipaddr_string(data));
+ if (len < 4)
+ ND_PRINT((ndo," len=%d [bad: < 4]", len));
+ else
+ ND_PRINT((ndo," len=%d %s", len, ipaddr_string(data)));
len = 0;
break;
case IPSECDOI_ID_FQDN:
case IPSECDOI_ID_USER_FQDN:
{
int i;
- printf(" len=%d ", len);
+ ND_PRINT((ndo," len=%d ", len));
for (i = 0; i < len; i++)
- safeputchar(data[i]);
+ safeputchar(ndo, data[i]);
len = 0;
break;
}
case IPSECDOI_ID_IPV4_ADDR_SUBNET:
{
const u_char *mask;
- mask = data + sizeof(struct in_addr);
- printf(" len=%d %s/%u.%u.%u.%u", len,
- ipaddr_string(data),
- mask[0], mask[1], mask[2], mask[3]);
+ if (len < 8)
+ ND_PRINT((ndo," len=%d [bad: < 8]", len));
+ else {
+ mask = data + sizeof(struct in_addr);
+ ND_PRINT((ndo," len=%d %s/%u.%u.%u.%u", len,
+ ipaddr_string(data),
+ mask[0], mask[1], mask[2], mask[3]));
+ }
len = 0;
break;
}
#ifdef INET6
case IPSECDOI_ID_IPV6_ADDR:
- printf(" len=%d %s", len, ip6addr_string(data));
+ if (len < 16)
+ ND_PRINT((ndo," len=%d [bad: < 16]", len));
+ else
+ ND_PRINT((ndo," len=%d %s", len, ip6addr_string(data)));
len = 0;
break;
case IPSECDOI_ID_IPV6_ADDR_SUBNET:
{
- const u_int32_t *mask;
- mask = (u_int32_t *)(data + sizeof(struct in6_addr));
- /*XXX*/
- printf(" len=%d %s/0x%08x%08x%08x%08x", len,
- ip6addr_string(data),
- mask[0], mask[1], mask[2], mask[3]);
+ const u_char *mask;
+ if (len < 20)
+ ND_PRINT((ndo," len=%d [bad: < 20]", len));
+ else {
+ mask = (u_char *)(data + sizeof(struct in6_addr));
+ /*XXX*/
+ 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(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]));
+ }
len = 0;
break;
}
#endif /*INET6*/
case IPSECDOI_ID_IPV4_ADDR_RANGE:
- printf(" len=%d %s-%s", len, ipaddr_string(data),
- ipaddr_string(data + sizeof(struct in_addr)));
+ if (len < 8)
+ ND_PRINT((ndo," len=%d [bad: < 8]", len));
+ else {
+ ND_PRINT((ndo," len=%d %s-%s", len,
+ ipaddr_string(data),
+ ipaddr_string(data + sizeof(struct in_addr))));
+ }
len = 0;
break;
#ifdef INET6
case IPSECDOI_ID_IPV6_ADDR_RANGE:
- printf(" len=%d %s-%s", len, ip6addr_string(data),
- ip6addr_string(data + sizeof(struct in6_addr)));
+ if (len < 32)
+ ND_PRINT((ndo," len=%d [bad: < 32]", len));
+ else {
+ ND_PRINT((ndo," len=%d %s-%s", len,
+ ip6addr_string(data),
+ ip6addr_string(data + sizeof(struct in6_addr))));
+ }
len = 0;
break;
#endif /*INET6*/
}
}
if (data && len) {
- printf(" len=%d", len);
- if (2 < vflag) {
- printf(" ");
- rawprint((caddr_t)data, len);
+ ND_PRINT((ndo," len=%d", len));
+ if (2 < ndo->ndo_vflag) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)data, len))
+ goto trunc;
}
}
- return (u_char *)ext + ntohs(id.h.len);
+ return (u_char *)ext + item_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_ID)));
+ return NULL;
}
static const u_char *
-isakmp_cert_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi0 _U_, u_int32_t proto0 _U_,
- int depth _U_)
+ikev1_cert_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_,
+ u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth _U_)
{
- const struct isakmp_pl_cert *p;
- struct isakmp_pl_cert cert;
+ const struct ikev1_pl_cert *p;
+ struct ikev1_pl_cert cert;
static const char *certstr[] = {
"none", "pkcs7", "pgp", "dns",
"x509sign", "x509ke", "kerberos", "crl",
"arl", "spki", "x509attr",
};
- printf("%s:", NPSTR(ISAKMP_NPTYPE_CERT));
-
- p = (struct isakmp_pl_cert *)ext;
- safememcpy(&cert, ext, sizeof(cert));
- printf(" len=%d", ntohs(cert.h.len) - 4);
- printf(" type=%s", STR_OR_ID((cert.encode), certstr));
- if (2 < vflag && 4 < ntohs(cert.h.len)) {
- printf(" ");
- rawprint((caddr_t)(ext + 1), ntohs(cert.h.len) - 4);
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CERT)));
+
+ p = (struct ikev1_pl_cert *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&cert, ext, sizeof(cert));
+ 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) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), item_len - 4))
+ goto trunc;
}
- return (u_char *)ext + ntohs(cert.h.len);
+ return (u_char *)ext + item_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CERT)));
+ return NULL;
}
static const u_char *
-isakmp_cr_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi0 _U_, u_int32_t proto0 _U_,
- int depth _U_)
+ikev1_cr_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth _U_)
{
- const struct isakmp_pl_cert *p;
- struct isakmp_pl_cert cert;
+ const struct ikev1_pl_cert *p;
+ struct ikev1_pl_cert cert;
static const char *certstr[] = {
"none", "pkcs7", "pgp", "dns",
"x509sign", "x509ke", "kerberos", "crl",
"arl", "spki", "x509attr",
};
- printf("%s:", NPSTR(ISAKMP_NPTYPE_CR));
-
- p = (struct isakmp_pl_cert *)ext;
- safememcpy(&cert, ext, sizeof(cert));
- printf(" len=%d", ntohs(cert.h.len) - 4);
- printf(" type=%s", STR_OR_ID((cert.encode), certstr));
- if (2 < vflag && 4 < ntohs(cert.h.len)) {
- printf(" ");
- rawprint((caddr_t)(ext + 1), ntohs(cert.h.len) - 4);
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CR)));
+
+ p = (struct ikev1_pl_cert *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&cert, ext, sizeof(cert));
+ 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) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), item_len - 4))
+ goto trunc;
}
- return (u_char *)ext + ntohs(cert.h.len);
+ return (u_char *)ext + item_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CR)));
+ return NULL;
}
static const u_char *
-isakmp_hash_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi _U_, u_int32_t proto _U_,
- int depth _U_)
+ikev1_hash_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_HASH));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_HASH)));
- safememcpy(&e, ext, sizeof(e));
- printf(" len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4);
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
}
return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_HASH)));
+ return NULL;
}
static const u_char *
-isakmp_sig_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi _U_, u_int32_t proto _U_,
- int depth _U_)
+ikev1_sig_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_SIG));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SIG)));
- safememcpy(&e, ext, sizeof(e));
- printf(" len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4);
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
}
return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SIG)));
+ return NULL;
}
static const u_char *
-isakmp_nonce_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi _U_, u_int32_t proto _U_,
- int depth _U_)
+ikev1_nonce_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_,
+ const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_NONCE));
-
- safememcpy(&e, ext, sizeof(e));
- printf(" n len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4);
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_NONCE)));
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ND_PRINT((ndo," n len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ } else if (1 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!ike_show_somedata(ndo, (u_char *)(caddr_t)(ext + 1), ep))
+ goto trunc;
}
return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_NONCE)));
+ return NULL;
}
static const u_char *
-isakmp_n_print(const struct isakmp_gen *ext, const u_char *ep, u_int32_t phase,
- u_int32_t doi0 _U_, u_int32_t proto0 _U_, int depth)
+ikev1_n_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len,
+ const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth)
{
- struct isakmp_pl_n *p, n;
+ struct ikev1_pl_n *p, n;
const u_char *cp;
u_char *ep2;
u_int32_t doi;
#define IPSEC_NOTIFY_STATUS_STR(x) \
STR_OR_ID((u_int)((x) - 24576), ipsec_notify_status_str)
- printf("%s:", NPSTR(ISAKMP_NPTYPE_N));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_N)));
- p = (struct isakmp_pl_n *)ext;
- safememcpy(&n, ext, sizeof(n));
+ p = (struct ikev1_pl_n *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&n, ext, sizeof(n));
doi = ntohl(n.doi);
proto = n.prot_id;
if (doi != 1) {
- printf(" doi=%d", doi);
- printf(" proto=%d", proto);
+ ND_PRINT((ndo," doi=%d", doi));
+ ND_PRINT((ndo," proto=%d", proto));
if (ntohs(n.type) < 8192)
- printf(" type=%s", NOTIFY_ERROR_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type))));
else if (ntohs(n.type) < 16384)
- printf(" type=%s", numstr(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
else if (ntohs(n.type) < 24576)
- printf(" type=%s", NOTIFY_STATUS_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type))));
else
- printf(" type=%s", numstr(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
if (n.spi_size) {
- printf(" spi=");
- rawprint((caddr_t)(p + 1), n.spi_size);
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size))
+ goto trunc;
}
return (u_char *)(p + 1) + n.spi_size;
}
- printf(" doi=ipsec");
- printf(" proto=%s", PROTOIDSTR(proto));
+ ND_PRINT((ndo," doi=ipsec"));
+ ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto)));
if (ntohs(n.type) < 8192)
- printf(" type=%s", NOTIFY_ERROR_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type))));
else if (ntohs(n.type) < 16384)
- printf(" type=%s", IPSEC_NOTIFY_ERROR_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_ERROR_STR(ntohs(n.type))));
else if (ntohs(n.type) < 24576)
- printf(" type=%s", NOTIFY_STATUS_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type))));
else if (ntohs(n.type) < 32768)
- printf(" type=%s", IPSEC_NOTIFY_STATUS_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_STATUS_STR(ntohs(n.type))));
else
- printf(" type=%s", numstr(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
if (n.spi_size) {
- printf(" spi=");
- rawprint((caddr_t)(p + 1), n.spi_size);
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size))
+ goto trunc;
}
cp = (u_char *)(p + 1) + n.spi_size;
- ep2 = (u_char *)p + ntohs(n.h.len);
+ ep2 = (u_char *)p + item_len;
if (cp < ep) {
- printf(" orig=(");
+ ND_PRINT((ndo," orig=("));
switch (ntohs(n.type)) {
case IPSECDOI_NTYPE_RESPONDER_LIFETIME:
{
const struct attrmap *map = oakley_t_map;
size_t nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
while (cp < ep && cp < ep2) {
- cp = isakmp_attrmap_print(cp,
+ cp = ikev1_attrmap_print(ndo, cp,
(ep < ep2) ? ep : ep2, map, nmap);
}
break;
}
case IPSECDOI_NTYPE_REPLAY_STATUS:
- printf("replay detection %sabled",
- (*(u_int32_t *)cp) ? "en" : "dis");
+ ND_PRINT((ndo,"replay detection %sabled",
+ EXTRACT_32BITS(cp) ? "en" : "dis"));
break;
case ISAKMP_NTYPE_NO_PROPOSAL_CHOSEN:
- if (isakmp_sub_print(ISAKMP_NPTYPE_SA,
- (struct isakmp_gen *)cp, ep, phase, doi, proto,
- depth) == NULL)
+ if (ikev1_sub_print(ndo, ISAKMP_NPTYPE_SA,
+ (struct isakmp_gen *)cp, ep, phase, doi, proto,
+ depth) == NULL)
return NULL;
break;
default:
/* NULL is dummy */
- isakmp_print(cp,
- ntohs(n.h.len) - sizeof(*p) - n.spi_size,
- NULL);
+ isakmp_print(ndo, cp,
+ item_len - sizeof(*p) - n.spi_size,
+ NULL);
}
- printf(")");
+ ND_PRINT((ndo,")"));
}
- return (u_char *)ext + ntohs(n.h.len);
+ return (u_char *)ext + item_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N)));
+ return NULL;
}
static const u_char *
-isakmp_d_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi0 _U_, u_int32_t proto0 _U_,
- int depth _U_)
+ikev1_d_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth _U_)
{
- const struct isakmp_pl_d *p;
- struct isakmp_pl_d d;
+ const struct ikev1_pl_d *p;
+ struct ikev1_pl_d d;
const u_int8_t *q;
u_int32_t doi;
u_int32_t proto;
int i;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_D));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_D)));
- p = (struct isakmp_pl_d *)ext;
- safememcpy(&d, ext, sizeof(d));
+ p = (struct ikev1_pl_d *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&d, ext, sizeof(d));
doi = ntohl(d.doi);
proto = d.prot_id;
if (doi != 1) {
- printf(" doi=%u", doi);
- printf(" proto=%u", proto);
+ ND_PRINT((ndo," doi=%u", doi));
+ ND_PRINT((ndo," proto=%u", proto));
} else {
- printf(" doi=ipsec");
- printf(" proto=%s", PROTOIDSTR(proto));
+ ND_PRINT((ndo," doi=ipsec"));
+ ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto)));
}
- printf(" spilen=%u", d.spi_size);
- printf(" nspi=%u", ntohs(d.num_spi));
- printf(" spi=");
+ ND_PRINT((ndo," spilen=%u", d.spi_size));
+ ND_PRINT((ndo," nspi=%u", ntohs(d.num_spi)));
+ ND_PRINT((ndo," spi="));
q = (u_int8_t *)(p + 1);
for (i = 0; i < ntohs(d.num_spi); i++) {
if (i != 0)
- printf(",");
- rawprint((caddr_t)q, d.spi_size);
+ ND_PRINT((ndo,","));
+ if (!rawprint(ndo, (caddr_t)q, d.spi_size))
+ goto trunc;
q += d.spi_size;
}
return q;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_D)));
+ return NULL;
}
static const u_char *
-isakmp_vid_print(const struct isakmp_gen *ext, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi _U_, u_int32_t proto _U_,
- int depth _U_)
+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_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_VID));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_VID)));
- safememcpy(&e, ext, sizeof(e));
- printf(" len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4);
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
}
return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_VID)));
+ return NULL;
+}
+
+/************************************************************/
+/* */
+/* 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]" : ""));
}
static const u_char *
-isakmp_sub0_print(u_char np, const struct isakmp_gen *ext, const u_char *ep,
- u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+ikev2_gen_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext)
{
- const u_char *cp;
struct isakmp_gen e;
- u_int item_len;
- cp = (u_char *)ext;
- safememcpy(&e, ext, sizeof(e));
-
- if (NPFUNC(np))
- cp = (*NPFUNC(np))(ext, ep, phase, doi, proto, depth);
- else {
- printf("%s", NPSTR(np));
- item_len = ntohs(e.len);
- if (item_len == 0) {
- /*
- * We don't want to loop forever processing this
- * bogus (zero-length) item; return NULL so that
- * we stop dissecting.
- */
- cp = NULL;
- } else
- cp += item_len;
- }
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
- return cp;
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ }
+ return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
}
static const u_char *
-isakmp_sub_print(u_char np, const struct isakmp_gen *ext, const u_char *ep,
- u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+ikev2_t_print(netdissect_options *ndo, u_char tpay _U_, int pcount,
+ const struct isakmp_gen *ext, u_int item_len,
+ const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
+ const struct ikev2_t *p;
+ struct ikev2_t t;
+ u_int16_t t_id;
const u_char *cp;
- int i;
- struct isakmp_gen e;
+ const char *idstr;
+ const struct attrmap *map;
+ size_t nmap;
+ const u_char *ep2;
- cp = (const u_char *)ext;
+ p = (struct ikev2_t *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&t, ext, sizeof(t));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_T), t.h.critical);
- while (np) {
- safememcpy(&e, ext, sizeof(e));
+ t_id = ntohs(t.t_id);
- if (ep < (u_char *)ext + ntohs(e.len)) {
- printf(" [|%s]", NPSTR(np));
- cp = ep + 1;
- break;
- }
- depth++;
- printf("\n");
- for (i = 0; i < depth; i++)
- printf(" ");
- printf("(");
- cp = isakmp_sub0_print(np, ext, ep, phase, doi, proto, depth);
- printf(")");
- depth--;
+ map = NULL;
+ nmap = 0;
- if (cp == NULL) {
- /* Zero-length subitem */
- return NULL;
- }
+ 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;
- np = e.np;
- ext = (struct isakmp_gen *)cp;
- }
- return cp;
-}
+ case IV2_T_PRF:
+ idstr = STR_OR_ID(t_id, prf_p_map);
+ break;
-static char *
-numstr(int x)
-{
- static char buf[20];
- snprintf(buf, sizeof(buf), "#%d", x);
- return buf;
-}
+ case IV2_T_INTEG:
+ idstr = STR_OR_ID(t_id, integ_p_map);
+ break;
-/*
- * some compiler tries to optimize memcpy(), using the alignment constraint
- * on the argument pointer type. by using this function, we try to avoid the
- * optimization.
- */
-static void
-safememcpy(void *p, const void *q, size_t l)
-{
- memcpy(p, q, l);
-}
+ case IV2_T_DH:
+ idstr = STR_OR_ID(t_id, dh_p_map);
+ break;
-void
-isakmp_print(const u_char *bp, u_int length, const u_char *bp2)
-{
- const struct isakmp *p;
- struct isakmp base;
- const u_char *ep;
- u_char np;
- int i;
- int phase;
- int major, minor;
+ case IV2_T_ESN:
+ idstr = STR_OR_ID(t_id, esn_p_map);
+ break;
- p = (const struct isakmp *)bp;
- ep = snapend;
+ default:
+ idstr = NULL;
+ break;
+ }
- if ((struct isakmp *)ep < p + 1) {
- printf("[|isakmp]");
- return;
+ if (idstr)
+ ND_PRINT((ndo," #%u type=%s id=%s ", pcount,
+ STR_OR_ID(t.t_type, ikev2_t_type_map),
+ idstr));
+ else
+ ND_PRINT((ndo," #%u type=%s id=%u ", pcount,
+ STR_OR_ID(t.t_type, ikev2_t_type_map),
+ t.t_id));
+ cp = (u_char *)(p + 1);
+ ep2 = (u_char *)p + item_len;
+ while (cp < ep && cp < ep2) {
+ if (map && nmap) {
+ cp = ikev1_attrmap_print(ndo, cp, (ep < ep2) ? ep : ep2,
+ map, nmap);
+ } else
+ cp = ikev1_attr_print(ndo, cp, (ep < ep2) ? ep : ep2);
}
+ if (ep < ep2)
+ ND_PRINT((ndo,"..."));
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T)));
+ return NULL;
+}
- safememcpy(&base, p, sizeof(base));
+static const u_char *
+ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep, u_int32_t phase, u_int32_t doi0,
+ u_int32_t proto0 _U_, int depth)
+{
+ const struct ikev2_p *p;
+ struct ikev2_p prop;
+ const u_char *cp;
- printf("isakmp");
- if (vflag) {
- major = (base.vers & ISAKMP_VERS_MAJOR)
- >> ISAKMP_VERS_MAJOR_SHIFT;
- minor = (base.vers & ISAKMP_VERS_MINOR)
- >> ISAKMP_VERS_MINOR_SHIFT;
- printf(" %d.%d", major, minor);
- }
+ p = (struct ikev2_p *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&prop, ext, sizeof(prop));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_P), prop.h.critical);
- if (vflag) {
- printf(" msgid ");
- rawprint((caddr_t)&base.msgid, sizeof(base.msgid));
+ ND_PRINT((ndo," #%u protoid=%s transform=%d len=%u",
+ prop.p_no, PROTOIDSTR(prop.prot_id),
+ prop.num_t, ntohs(prop.h.len)));
+ if (prop.spi_size) {
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), prop.spi_size))
+ goto trunc;
}
- if (1 < vflag) {
- printf(" cookie ");
- rawprint((caddr_t)&base.i_ck, sizeof(base.i_ck));
- printf("->");
- rawprint((caddr_t)&base.r_ck, sizeof(base.r_ck));
- }
- printf(":");
+ ext = (struct isakmp_gen *)((u_char *)(p + 1) + prop.spi_size);
+ ND_TCHECK(*ext);
- phase = (*(u_int32_t *)base.msgid == 0) ? 1 : 2;
+ cp = ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
+ prop.prot_id, depth);
+
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_sa_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext1,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+ int osa_length, sa_length;
+
+ ND_TCHECK(*ext1);
+ UNALIGNED_MEMCPY(&e, ext1, sizeof(e));
+ ikev2_pay_print(ndo, "sa", e.critical);
+
+ osa_length= ntohs(e.len);
+ sa_length = osa_length - 4;
+ ND_PRINT((ndo," len=%d", sa_length));
+
+ ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_P,
+ ext1+1, ep,
+ 0, 0, 0, depth);
+
+ return (u_char *)ext1 + osa_length;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_ke_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_ke ke;
+ struct ikev2_ke *k;
+
+ k = (struct ikev2_ke *)ext;
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&ke, ext, sizeof(ke));
+ 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)));
+
+ if (2 < ndo->ndo_vflag && 8 < ntohs(ke.h.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(k + 1), ntohs(ke.h.len) - 8))
+ goto trunc;
+ }
+ return (u_char *)ext + ntohs(ke.h.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_ID_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_id id;
+ int id_len, idtype_len, i;
+ unsigned int dumpascii, dumphex;
+ unsigned char *typedata;
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&id, ext, sizeof(id));
+ 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) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), id_len - 4))
+ goto trunc;
+ }
+
+ idtype_len =id_len - sizeof(struct ikev2_id);
+ dumpascii = 0;
+ dumphex = 0;
+ typedata = (unsigned char *)(ext)+sizeof(struct ikev2_id);
+
+ 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++) {
+ if(ND_ISPRINT(typedata[i])) {
+ ND_PRINT((ndo, "%c", typedata[i]));
+ } else {
+ ND_PRINT((ndo, "."));
+ }
+ }
+ }
+ if(dumphex) {
+ if (!rawprint(ndo, (caddr_t)typedata, idtype_len))
+ goto trunc;
+ }
+
+ return (u_char *)ext + id_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_cert_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_cr_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_auth_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_auth a;
+ const char *v2_auth[]={ "invalid", "rsasig",
+ "shared-secret", "dsssig" };
+ u_char *authdata = (u_char*)ext + sizeof(a);
+ unsigned int len;
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&a, ext, sizeof(a));
+ ikev2_pay_print(ndo, NPSTR(tpay), a.h.critical);
+ len = ntohs(a.h.len);
+
+ ND_PRINT((ndo," len=%d method=%s", len-4,
+ STR_OR_ID(a.auth_method, v2_auth)));
+
+ if (1 < ndo->ndo_vflag && 4 < len) {
+ ND_PRINT((ndo," authdata=("));
+ if (!rawprint(ndo, (caddr_t)authdata, len - sizeof(a)))
+ goto trunc;
+ ND_PRINT((ndo,") "));
+ } else if(ndo->ndo_vflag && 4 < len) {
+ if(!ike_show_somedata(ndo, authdata, ep)) goto trunc;
+ }
+
+ return (u_char *)ext + len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_nonce_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ 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=("));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ 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;
+ }
+
+ return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+/* notify payloads */
+static const u_char *
+ikev2_n_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_n *p, n;
+ const u_char *cp;
+ u_char showspi, showdata, showsomedata;
+ const char *notify_name;
+ u_int32_t type;
+
+ p = (struct ikev2_n *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&n, ext, sizeof(n));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_N), n.h.critical);
+
+ showspi = 1;
+ showdata = 0;
+ 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;
+
+ case IV2_NOTIFY_FAILED_CP_REQUIRED:
+ 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;
+
+ case IV2_NOTIFY_SET_WINDOW_SIZE:
+ notify_name = "set_window_size";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_ADDITIONAL_TS_POSSIBLE:
+ notify_name = "additional_ts_possible";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_IPCOMP_SUPPORTED:
+ 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;
+ showdata= 0;
+ 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));
+ }
+
+
+ if (showspi && n.spi_size) {
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size))
+ goto trunc;
+ }
+
+ cp = (u_char *)(p + 1) + n.spi_size;
+
+ if(3 < ndo->ndo_vflag) {
+ showdata = 1;
+ }
+
+ if ((showdata || (showsomedata && ep-cp < 30)) && cp < ep) {
+ ND_PRINT((ndo," data=("));
+ if (!rawprint(ndo, (caddr_t)(cp), ep - cp))
+ goto trunc;
+
+ ND_PRINT((ndo,")"));
+
+ } else if(showsomedata && cp < ep) {
+ if(!ike_show_somedata(ndo, cp, ep)) goto trunc;
+ }
+
+ return (u_char *)ext + item_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_d_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_vid_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+ const u_char *vid;
+ int i, len;
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
+ ND_PRINT((ndo," len=%d vid=", ntohs(e.len) - 4));
+
+ vid = (const u_char *)(ext+1);
+ len = ntohs(e.len) - 4;
+ ND_TCHECK2(*vid, len);
+ for(i=0; i<len; i++) {
+ if(ND_ISPRINT(vid[i])) ND_PRINT((ndo, "%c", vid[i]));
+ else ND_PRINT((ndo, "."));
+ }
+ if (2 < ndo->ndo_vflag && 4 < len) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ }
+ return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_TS_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_e_print(netdissect_options *ndo,
+#ifndef HAVE_LIBCRYPTO
+ _U_
+#endif
+ struct isakmp *base,
+ u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+#ifndef HAVE_LIBCRYPTO
+ _U_
+#endif
+ u_int32_t phase,
+#ifndef HAVE_LIBCRYPTO
+ _U_
+#endif
+ u_int32_t doi,
+#ifndef HAVE_LIBCRYPTO
+ _U_
+#endif
+ u_int32_t proto,
+#ifndef HAVE_LIBCRYPTO
+ _U_
+#endif
+ int depth)
+{
+ struct isakmp_gen e;
+ u_char *dat;
+ volatile int dlen;
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ 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," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), dlen))
+ goto trunc;
+ }
+
+ dat = (u_char *)(ext+1);
+ ND_TCHECK2(*dat, dlen);
+
+#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)) {
+
+ 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
+
+
+ /* 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;
+}
+
+static const u_char *
+ikev2_cp_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_eap_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ 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,
+
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ struct isakmp_gen e;
+ u_int item_len;
+
+ cp = (u_char *)ext;
+ 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)
+ return NULL;
+
+ if (NPFUNC(np)) {
+ /*
+ * XXX - what if item_len is too short, or too long,
+ * for this payload type?
+ */
+ cp = (*npfunc[np])(ndo, np, ext, item_len, 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 *
+ikev1_sub_print(netdissect_options *ndo,
+ u_char np, const struct isakmp_gen *ext, const u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ int i;
+ struct isakmp_gen e;
+
+ cp = (const u_char *)ext;
+
+ while (np) {
+ ND_TCHECK(*ext);
+
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+
+ ND_TCHECK2(*ext, ntohs(e.len));
+
+ depth++;
+ ND_PRINT((ndo,"\n"));
+ for (i = 0; i < depth; i++)
+ ND_PRINT((ndo," "));
+ ND_PRINT((ndo,"("));
+ cp = ike_sub0_print(ndo, np, ext, ep, phase, doi, proto, depth);
+ ND_PRINT((ndo,")"));
+ depth--;
+
+ if (cp == NULL) {
+ /* Zero-length subitem */
+ return NULL;
+ }
+
+ np = e.np;
+ ext = (struct isakmp_gen *)cp;
+ }
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(np)));
+ return NULL;
+}
+
+static char *
+numstr(int x)
+{
+ static char buf[20];
+ snprintf(buf, sizeof(buf), "#%d", x);
+ return buf;
+}
+
+static void
+ikev1_print(netdissect_options *ndo,
+ const u_char *bp, u_int length,
+ const u_char *bp2, struct isakmp *base)
+{
+ const struct isakmp *p;
+ const u_char *ep;
+ u_char np;
+ int i;
+ int phase;
+
+ p = (const struct isakmp *)bp;
+ ep = ndo->ndo_snapend;
+
+ phase = (EXTRACT_32BITS(base->msgid) == 0) ? 1 : 2;
if (phase == 1)
- printf(" phase %d", phase);
+ ND_PRINT((ndo," phase %d", phase));
else
- printf(" phase %d/others", phase);
+ ND_PRINT((ndo," phase %d/others", phase));
- i = cookie_find(&base.i_ck);
+ i = cookie_find(&base->i_ck);
if (i < 0) {
- if (iszero((u_char *)&base.r_ck, sizeof(base.r_ck))) {
+ if (iszero((u_char *)&base->r_ck, sizeof(base->r_ck))) {
/* the first packet */
- printf(" I");
+ ND_PRINT((ndo," I"));
if (bp2)
- cookie_record(&base.i_ck, bp2);
+ cookie_record(&base->i_ck, bp2);
} else
- printf(" ?");
+ ND_PRINT((ndo," ?"));
} else {
if (bp2 && cookie_isinitiator(i, bp2))
- printf(" I");
+ ND_PRINT((ndo," I"));
else if (bp2 && cookie_isresponder(i, bp2))
- printf(" R");
+ ND_PRINT((ndo," R"));
else
- printf(" ?");
+ ND_PRINT((ndo," ?"));
}
- printf(" %s", ETYPESTR(base.etype));
- if (base.flags) {
- printf("[%s%s]", base.flags & ISAKMP_FLAG_E ? "E" : "",
- base.flags & ISAKMP_FLAG_C ? "C" : "");
+ 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" : ""));
}
- printf(":");
- {
- const struct isakmp_gen *ext;
- int nparen;
+ if (ndo->ndo_vflag) {
+ const struct isakmp_gen *ext;
+
+ ND_PRINT((ndo,":"));
-#define CHECKLEN(p, np) \
- if (ep < (u_char *)(p)) { \
- printf(" [|%s]", NPSTR(np)); \
- goto done; \
+ /* 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;
+ }
+
+ CHECKLEN(p + 1, base->np);
+ np = base->np;
+ ext = (struct isakmp_gen *)(p + 1);
+ ikev1_sub_print(ndo, np, ext, ep, phase, 0, 0, 0);
}
- /* regardless of phase... */
- if (base.flags & ISAKMP_FLAG_E) {
+done:
+ if (ndo->ndo_vflag) {
+ if (ntohl(base->len) != length) {
+ ND_PRINT((ndo," (len mismatch: isakmp %u/ip %u)",
+ (u_int32_t)ntohl(base->len), length));
+ }
+ }
+}
+
+static const u_char *
+ikev2_sub0_print(netdissect_options *ndo, struct isakmp *base,
+ u_char np, int pcount,
+ const struct isakmp_gen *ext, const u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ struct isakmp_gen e;
+ u_int item_len;
+
+ cp = (u_char *)ext;
+ 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)
+ return NULL;
+
+ if(np == ISAKMP_NPTYPE_P) {
+ cp = ikev2_p_print(ndo, np, pcount, ext, item_len,
+ ep, phase, doi, proto, depth);
+ } else if(np == ISAKMP_NPTYPE_T) {
+ cp = ikev2_t_print(ndo, np, pcount, ext, item_len,
+ ep, phase, doi, proto, depth);
+ } else if(np == ISAKMP_NPTYPE_v2E) {
+ cp = ikev2_e_print(ndo, base, np, ext, item_len,
+ ep, phase, doi, proto, depth);
+ } else if (NPFUNC(np)) {
/*
- * encrypted, nothing we can do right now.
- * we hope to decrypt the packet in the future...
+ * XXX - what if item_len is too short, or too long,
+ * for this payload type?
*/
- printf(" [encrypted %s]", NPSTR(base.np));
- goto done;
+ cp = (*npfunc[np])(ndo, np, /*pcount,*/ ext, item_len,
+ 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,
+ struct isakmp *base,
+ u_char np, const struct isakmp_gen *ext, const u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ int i;
+ int pcount;
+ struct isakmp_gen e;
+
+ cp = (const u_char *)ext;
+ pcount = 0;
+ while (np) {
+ pcount++;
+ ND_TCHECK(*ext);
+
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+
+ ND_TCHECK2(*ext, ntohs(e.len));
+
+ depth++;
+ ND_PRINT((ndo,"\n"));
+ for (i = 0; i < depth; i++)
+ ND_PRINT((ndo," "));
+ ND_PRINT((ndo,"("));
+ cp = ikev2_sub0_print(ndo, base, np, pcount,
+ ext, ep, phase, doi, proto, depth);
+ ND_PRINT((ndo,")"));
+ depth--;
+
+ if (cp == NULL) {
+ /* Zero-length subitem */
+ return NULL;
+ }
+
+ np = e.np;
+ ext = (struct isakmp_gen *)cp;
}
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(np)));
+ return NULL;
+}
- nparen = 0;
- CHECKLEN(p + 1, base.np)
+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;
- np = base.np;
- ext = (struct isakmp_gen *)(p + 1);
- isakmp_sub_print(np, ext, ep, phase, 0, 0, 0);
- }
+ p = (const struct isakmp *)bp;
+ ep = ndo->ndo_snapend;
+
+ phase = (EXTRACT_32BITS(base->msgid) == 0) ? 1 : 2;
+ if (phase == 1)
+ ND_PRINT((ndo, " parent_sa"));
+ else
+ ND_PRINT((ndo, " child_sa "));
+
+ ND_PRINT((ndo, " %s", ETYPESTR(base->etype)));
+ if (base->flags) {
+ ND_PRINT((ndo, "[%s%s%s]",
+ 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, ":"));
+
+ /* 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;
+ }
+
+ CHECKLEN(p + 1, base->np)
+
+ np = base->np;
+ ext = (struct isakmp_gen *)(p + 1);
+ ikev2_sub_print(ndo, base, np, ext, ep, phase, 0, 0, 0);
+ }
done:
- if (vflag) {
- if (ntohl(base.len) != length) {
- printf(" (len mismatch: isakmp %u/ip %d)",
- (u_int32_t)ntohl(base.len), length);
+ if (ndo->ndo_vflag) {
+ if (ntohl(base->len) != length) {
+ ND_PRINT((ndo, " (len mismatch: isakmp %u/ip %u)",
+ (u_int32_t)ntohl(base->len), length));
}
}
}
+
+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;
+
+#ifdef HAVE_LIBCRYPTO
+ /* initialize SAs */
+ if (ndo->ndo_sa_list_head == NULL) {
+ if (ndo->ndo_espsecret)
+ esp_print_decodesecret(ndo);
+ }
+#endif
+
+ p = (const struct isakmp *)bp;
+ ep = ndo->ndo_snapend;
+
+ if ((struct isakmp *)ep < p + 1) {
+ ND_PRINT((ndo,"[|isakmp]"));
+ return;
+ }
+
+ UNALIGNED_MEMCPY(&base, p, sizeof(base));
+
+ 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 "));
+ hexprint(ndo, (caddr_t)&base.msgid, sizeof(base.msgid));
+ }
+
+ if (1 < ndo->ndo_vflag) {
+ ND_PRINT((ndo," cookie "));
+ hexprint(ndo, (caddr_t)&base.i_ck, sizeof(base.i_ck));
+ ND_PRINT((ndo,"->"));
+ hexprint(ndo, (caddr_t)&base.r_ck, sizeof(base.r_ck));
+ }
+ 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;
+ }
+}
+
+void
+isakmp_rfc3948_print(netdissect_options *ndo,
+ const u_char *bp, u_int length,
+ const u_char *bp2)
+{
+
+ if(length == 1 && bp[0]==0xff) {
+ ND_PRINT((ndo, "isakmp-nat-keep-alive"));
+ return;
+ }
+
+ if(length < 4) {
+ goto trunc;
+ }
+
+ /*
+ * 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;
+
+ ip_print_inner(ndo, bp, length, nh, bp2);
+ return;
+ }
+
+trunc:
+ ND_PRINT((ndo,"[|isakmp]"));
+ return;
+}
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
+
+
+
+
projects / tcpdump / blobdiff