OpenBSD-4.6/usr.sbin/tcpdump/print-ike.c
/* $OpenBSD: print-ike.c,v 1.31 2008/12/18 16:18:49 hshoexer Exp $ */
/*
* Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2001 Håkan Olsson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Format and print ike (isakmp) packets.
* By Tero Kivinen <kivinen@ssh.fi>, Tero Mononen <tmo@ssh.fi>,
* Tatu Ylonen <ylo@ssh.fi> and Timo J. Rinne <tri@ssh.fi>
* in co-operation with SSH Communications Security, Espoo, Finland
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Id: print-ike.c,v 1.31 2008/12/18 16:18:49 hshoexer Exp $ (XXX)";
#endif
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include "interface.h"
#include "addrtoname.h"
#include "ike.h"
struct isakmp_header {
u_int8_t init_cookie[8];
u_int8_t resp_cookie[8];
u_int8_t next_payload;
u_int8_t version;
u_int8_t exgtype;
u_int8_t flags;
u_int8_t msgid[4];
u_int32_t length;
u_int8_t payloads[0];
};
struct sa_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int32_t doi;
u_int8_t situation[0];
};
struct proposal_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int8_t nprop;
u_int8_t proto;
u_int8_t spi_size;
u_int8_t nspis;
u_int8_t spi[0];
};
struct transform_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int8_t ntrans;
u_int8_t transform;
u_int16_t reserved2;
u_int8_t attribute[0];
};
struct ke_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int8_t data[0];
};
struct id_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int8_t type;
u_int8_t id_data[3];
u_int8_t data[0];
};
struct notification_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int32_t doi;
u_int8_t protocol_id;
u_int8_t spi_size;
u_int16_t type;
u_int8_t data[0];
};
struct delete_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int32_t doi;
u_int8_t proto;
u_int8_t spi_size;
u_int16_t nspis;
u_int8_t spi[0];
};
struct vendor_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int8_t vid[0];
};
struct attribute_payload {
u_int8_t next_payload;
u_int8_t reserved;
u_int16_t payload_length;
u_int8_t type;
u_int8_t reserved2;
u_int16_t id;
};
static void ike_pl_print(u_int8_t, u_int8_t *, u_int8_t);
int ike_tab_level = 0;
u_int8_t xform_proto;
static const char *ike[] = IKE_PROTO_INITIALIZER;
#define SMALL_TABS 4
#define SPACES " "
const char *
ike_tab_offset(void)
{
const char *p, *endline;
static const char line[] = SPACES;
endline = line + sizeof line - 1;
p = endline - SMALL_TABS * (ike_tab_level);
return (p > line ? p : line);
}
static char *
ike_get_cookie (u_int8_t *ic, u_int8_t *rc)
{
static char cookie_jar[35];
int i;
for (i = 0; i < 8; i++)
snprintf(cookie_jar + i*2, sizeof(cookie_jar) - i*2,
"%02x", *(ic + i));
strlcat(cookie_jar, "->", sizeof(cookie_jar));
for (i = 0; i < 8; i++)
snprintf(cookie_jar + 18 + i*2, sizeof(cookie_jar) - 18 - i*2,
"%02x", *(rc + i));
return cookie_jar;
}
/*
* Print isakmp requests
*/
void
ike_print (const u_int8_t *cp, u_int length)
{
struct isakmp_header *ih;
const u_int8_t *ep;
u_int8_t *payload, next_payload;
int encrypted;
static const char *exgtypes[] = IKE_EXCHANGE_TYPES_INITIALIZER;
encrypted = 0;
#ifdef TCHECK
#undef TCHECK
#endif
#define TCHECK(var, l) if ((u_int8_t *)&(var) > ep - l) goto trunc
ih = (struct isakmp_header *)cp;
if (length < sizeof (struct isakmp_header))
goto trunc;
/* 'ep' points to the end of avaible data. */
ep = snapend;
printf(" isakmp");
printf(" v%d.%d", ih->version >> 4, ih->version & 0xf);
printf(" exchange ");
if (ih->exgtype < (sizeof exgtypes/sizeof exgtypes[0]))
printf("%s", exgtypes[ih->exgtype]);
else
printf("%d (unknown)", ih->exgtype);
if (ih->flags & FLAGS_ENCRYPTION) {
printf(" encrypted");
encrypted = 1;
}
if (ih->flags & FLAGS_COMMIT) {
printf(" commit");
}
printf("\n\tcookie: %s", ike_get_cookie (ih->init_cookie,
ih->resp_cookie));
TCHECK(ih->msgid, sizeof(ih->msgid));
printf(" msgid: %02x%02x%02x%02x", ih->msgid[0], ih->msgid[1],
ih->msgid[2], ih->msgid[3]);
TCHECK(ih->length, sizeof(ih->length));
printf(" len: %d", ntohl(ih->length));
if (ih->version > 16) {
printf(" new version");
return;
}
payload = ih->payloads;
next_payload = ih->next_payload;
/* if encrypted, then open special file for encryption keys */
if (encrypted) {
/* decrypt XXX */
return;
}
/* if verbose, print payload data */
if (vflag)
ike_pl_print(next_payload, payload, ISAKMP_DOI);
return;
trunc:
fputs(" [|isakmp]", stdout);
}
void
ike_pl_sa_print (u_int8_t *buf, int len)
{
struct sa_payload *sp = (struct sa_payload *)buf;
u_int32_t sit_ipsec, doi;
if (len < sizeof(struct sa_payload)) {
printf(" [|payload]");
return;
}
doi = ntohl(sp->doi);
printf(" DOI: %d", doi);
if (doi == IPSEC_DOI) {
if ((sp->situation + sizeof(u_int32_t)) > (buf + len)) {
printf(" [|payload]");
return;
}
printf("(IPSEC) situation: ");
sit_ipsec = ntohl(*(u_int32_t *)sp->situation);
if (sit_ipsec & IKE_SITUATION_IDENTITY_ONLY)
printf("IDENTITY_ONLY ");
if (sit_ipsec & IKE_SITUATION_SECRECY)
printf("SECRECY ");
if (sit_ipsec & IKE_SITUATION_INTEGRITY)
printf("INTEGRITY ");
if ((sit_ipsec & IKE_SITUATION_MASK) == 0)
printf("0x%x (unknown)", sit_ipsec);
ike_pl_print (PAYLOAD_PROPOSAL, buf +
sizeof(struct sa_payload) + sizeof(u_int32_t), IPSEC_DOI);
} else
printf(" situation: (unknown)");
}
int
ike_attribute_print (u_int8_t *buf, u_int8_t doi, int maxlen)
{
static char *attrs[] = IKE_ATTR_INITIALIZER;
static char *attr_enc[] = IKE_ATTR_ENCRYPT_INITIALIZER;
static char *attr_hash[] = IKE_ATTR_HASH_INITIALIZER;
static char *attr_auth[] = IKE_ATTR_AUTH_INITIALIZER;
static char *attr_gdesc[] = IKE_ATTR_GROUP_DESC_INITIALIZER;
static char *attr_gtype[] = IKE_ATTR_GROUP_INITIALIZER;
static char *attr_ltype[] = IKE_ATTR_SA_DURATION_INITIALIZER;
static char *ipsec_attrs[] = IPSEC_ATTR_INITIALIZER;
static char *ipsec_attr_encap[] = IPSEC_ATTR_ENCAP_INITIALIZER;
static char *ipsec_attr_auth[] = IPSEC_ATTR_AUTH_INITIALIZER;
static char *ipsec_attr_ltype[] = IPSEC_ATTR_DURATION_INITIALIZER;
u_int8_t af = buf[0] >> 7;
u_int16_t type = (buf[0] & 0x7f) << 8 | buf[1];
u_int16_t len = buf[2] << 8 | buf[3], val;
if (doi == ISAKMP_DOI)
printf("\n\t%sattribute %s = ", ike_tab_offset(),
(type < sizeof attrs / sizeof attrs[0] ?
attrs[type] : "<unknown>"));
else
printf("\n\t%sattribute %s = ", ike_tab_offset(),
(type < (sizeof ipsec_attrs / sizeof ipsec_attrs[0]) ?
ipsec_attrs[type] : "<unknown>"));
if ((af == 1 && maxlen < 4) || (af == 0 && maxlen < (len + 4))) {
printf("\n\t%s[|attr]", ike_tab_offset());
return maxlen;
}
if (af == 0) {
/* AF=0; print the variable length attribute value */
for (val = 0; val < len; val++)
printf("%02x", *(buf + 4 + val));
return len + 4;
}
val = len; /* For AF=1, this field is the "VALUE" */
len = 4; /* and with AF=1, length is always 4 */
#define CASE_PRINT(TYPE, var) \
case TYPE : \
if (val < sizeof var / sizeof var [0]) \
printf("%s", var [val]); \
else \
printf("%d (unknown)", val); \
break;
if (doi == ISAKMP_DOI)
switch(type) {
CASE_PRINT(IKE_ATTR_ENCRYPTION_ALGORITHM, attr_enc);
CASE_PRINT(IKE_ATTR_HASH_ALGORITHM, attr_hash);
CASE_PRINT(IKE_ATTR_AUTHENTICATION_METHOD, attr_auth);
CASE_PRINT(IKE_ATTR_GROUP_DESC, attr_gdesc);
CASE_PRINT(IKE_ATTR_GROUP_TYPE, attr_gtype);
CASE_PRINT(IKE_ATTR_LIFE_TYPE, attr_ltype);
default:
printf("%d", val);
}
else
switch(type) {
CASE_PRINT(IPSEC_ATTR_SA_LIFE_TYPE, ipsec_attr_ltype);
CASE_PRINT(IPSEC_ATTR_ENCAPSULATION_MODE,
ipsec_attr_encap);
CASE_PRINT(IPSEC_ATTR_AUTHENTICATION_ALGORITHM,
ipsec_attr_auth);
default:
printf("%d", val);
}
#undef CASE_PRINT
return len;
}
void
ike_pl_transform_print (u_int8_t *buf, int len, u_int8_t doi)
{
struct transform_payload *tp = (struct transform_payload *)buf;
const char *ah[] = IPSEC_AH_INITIALIZER;
const char *esp[] = IPSEC_ESP_INITIALIZER;
const char *ipcomp[] = IPCOMP_INITIALIZER;
u_int8_t *attr = tp->attribute;
if (len < sizeof(struct transform_payload)) {
printf(" [|payload]");
return;
}
printf("\n\t%stransform: %u ID: ", ike_tab_offset(), tp->ntrans);
switch (doi) {
case ISAKMP_DOI:
if (tp->transform < (sizeof ike / sizeof ike[0]))
printf("%s", ike[tp->transform]);
else
printf("%d(unknown)", tp->transform);
break;
default: /* IPSEC_DOI */
switch (xform_proto) { /* from ike_proposal_print */
case PROTO_IPSEC_AH:
if (tp->transform < (sizeof ah / sizeof ah[0]))
printf("%s", ah[tp->transform]);
else
printf("%d(unknown)", tp->transform);
break;
case PROTO_IPSEC_ESP:
if (tp->transform < (sizeof esp / sizeof esp[0]))
printf("%s", esp[tp->transform]);
else
printf("%d(unknown)", tp->transform);
break;
case PROTO_IPCOMP:
if (tp->transform < (sizeof ipcomp / sizeof ipcomp[0]))
printf("%s", ipcomp[tp->transform]);
else
printf("%d(unknown)", tp->transform);
break;
default:
printf("%d(unknown)", tp->transform);
}
break;
}
ike_tab_level++;
while ((int)(attr - buf) < len) /* Skip last 'NONE' attr */
attr += ike_attribute_print(attr, doi, len - (attr - buf));
ike_tab_level--;
}
void
ike_pl_proposal_print (u_int8_t *buf, int len, u_int8_t doi)
{
struct proposal_payload *pp = (struct proposal_payload *)buf;
int i;
if (len < sizeof(struct proposal_payload)) {
printf(" [|payload]");
return;
}
printf(" proposal: %d proto: %s spisz: %d xforms: %d",
pp->nprop, (pp->proto < (sizeof ike / sizeof ike[0]) ?
ike[pp->proto] : "(unknown)"), pp->spi_size, pp->nspis);
xform_proto = pp->proto;
if (pp->spi_size) {
if ((pp->spi + pp->spi_size) > (buf + len)) {
printf(" [|payload]");
return;
}
if (pp->proto == PROTO_IPCOMP)
printf(" CPI: 0x");
else
printf(" SPI: 0x");
for (i = 0; i < pp->spi_size; i++)
printf("%02x", pp->spi[i]);
}
/* Reset to sane value. */
if (pp->proto == PROTO_ISAKMP)
doi = ISAKMP_DOI;
else
doi = IPSEC_DOI;
if (pp->nspis > 0)
ike_pl_print(PAYLOAD_TRANSFORM, pp->spi + pp->spi_size, doi);
}
void
ike_pl_ke_print (u_int8_t *buf, int len, u_int8_t doi)
{
if (len < sizeof(struct ke_payload)) {
printf(" [|payload]");
return;
}
if (doi != IPSEC_DOI)
return;
/* XXX ... */
}
void
ipsec_id_print (u_int8_t *buf, int len, u_int8_t doi)
{
struct id_payload *ip = (struct id_payload *)buf;
static const char *idtypes[] = IPSEC_ID_TYPE_INITIALIZER;
char ntop_buf[INET6_ADDRSTRLEN];
struct in_addr in;
u_int8_t *p;
if (len < sizeof (struct id_payload)) {
printf(" [|payload]");
return;
}
if (doi != ISAKMP_DOI)
return;
/* Don't print proto+port unless actually used */
if (ip->id_data[0] | ip->id_data[1] | ip->id_data[2])
printf(" proto: %d port: %d", ip->id_data[0],
(ip->id_data[1] << 8) + ip->id_data[2]);
printf(" type: %s = ", ip->type < (sizeof idtypes/sizeof idtypes[0]) ?
idtypes[ip->type] : "<unknown>");
switch (ip->type) {
case IPSEC_ID_IPV4_ADDR:
if ((ip->data + sizeof in) > (buf + len)) {
printf(" [|payload]");
return;
}
memcpy (&in.s_addr, ip->data, sizeof in);
printf("%s", inet_ntoa (in));
break;
case IPSEC_ID_IPV4_ADDR_SUBNET:
case IPSEC_ID_IPV4_ADDR_RANGE:
if ((ip->data + 2 * (sizeof in)) > (buf + len)) {
printf(" [|payload]");
return;
}
memcpy (&in.s_addr, ip->data, sizeof in);
printf("%s%s", inet_ntoa (in),
ip->type == IPSEC_ID_IPV4_ADDR_SUBNET ? "/" : "-");
memcpy (&in.s_addr, ip->data + sizeof in, sizeof in);
printf("%s", inet_ntoa (in));
break;
case IPSEC_ID_IPV6_ADDR:
if ((ip->data + sizeof ntop_buf) > (buf + len)) {
printf(" [|payload]");
return;
}
printf("%s", inet_ntop (AF_INET6, ip->data, ntop_buf,
sizeof ntop_buf));
break;
case IPSEC_ID_IPV6_ADDR_SUBNET:
case IPSEC_ID_IPV6_ADDR_RANGE:
if ((ip->data + 2 * sizeof ntop_buf) > (buf + len)) {
printf(" [|payload]");
return;
}
printf("%s%s", inet_ntop (AF_INET6, ip->data, ntop_buf,
sizeof ntop_buf),
ip->type == IPSEC_ID_IPV6_ADDR_SUBNET ? "/" : "-");
printf("%s", inet_ntop (AF_INET6, ip->data + sizeof ntop_buf,
ntop_buf, sizeof ntop_buf));
break;
case IPSEC_ID_FQDN:
case IPSEC_ID_USER_FQDN:
printf("\"");
for (p = ip->data; (int)(p - buf) < len; p++)
printf("%c",(isprint(*p) ? *p : '.'));
printf("\"");
break;
case IPSEC_ID_DER_ASN1_DN:
case IPSEC_ID_DER_ASN1_GN:
case IPSEC_ID_KEY_ID:
default:
printf("\"(not shown)\"");
break;
}
}
void
ike_pl_delete_print (u_int8_t *buf, int len)
{
struct delete_payload *dp = (struct delete_payload *)buf;
u_int32_t doi;
u_int16_t s, nspis;
u_int8_t *data;
if (len < sizeof (struct delete_payload)) {
printf(" [|payload]");
return;
}
doi = ntohl(dp->doi);
nspis = ntohs(dp->nspis);
if (doi != ISAKMP_DOI && doi != IPSEC_DOI) {
printf(" (unknown DOI)");
return;
}
printf(" DOI: %u(%s) proto: %s nspis: %u", doi,
doi == ISAKMP_DOI ? "ISAKMP" : "IPSEC",
dp->proto < (sizeof ike / sizeof ike[0]) ? ike[dp->proto] :
"(unknown)", nspis);
if ((dp->spi + nspis * dp->spi_size) > (buf + len)) {
printf(" [|payload]");
return;
}
for (s = 0; s < nspis; s++) {
data = dp->spi + s * dp->spi_size;
if (dp->spi_size == 16)
printf("\n\t%scookie: %s", ike_tab_offset(),
ike_get_cookie(&data[0], &data[8]));
else
printf("\n\t%sSPI: 0x%08x", ike_tab_offset(),
data[0]<<24 | data[1]<<16 | data[2]<<8 | data[3]);
}
}
void
ike_pl_notification_print (u_int8_t *buf, int len)
{
static const char *nftypes[] = IKE_NOTIFY_TYPES_INITIALIZER;
struct notification_payload *np = (struct notification_payload *)buf;
u_int32_t *replay, *seq;
u_int32_t doi;
u_int16_t type;
u_int8_t *attr;
if (len < sizeof (struct notification_payload)) {
printf(" [|payload]");
return;
}
doi = ntohl (np->doi);
type = ntohs (np->type);
if (doi != ISAKMP_DOI && doi != IPSEC_DOI) {
printf(" (unknown DOI)");
return;
}
printf("\n\t%snotification: ", ike_tab_offset());
if (type > 0 && type < (sizeof nftypes / sizeof nftypes[0])) {
printf("%s", nftypes[type]);
return;
}
switch (type) {
case NOTIFY_IPSEC_RESPONDER_LIFETIME:
printf("RESPONDER LIFETIME ");
if (np->spi_size == 16)
printf("(%s)", ike_get_cookie (&np->data[0],
&np->data[8]));
else
printf("SPI: 0x%08x", np->data[0]<<24 |
np->data[1]<<16 | np->data[2]<<8 | np->data[3]);
attr = &np->data[np->spi_size];
ike_tab_level++;
while ((int)(attr - buf) < len - 4) /* Skip last 'NONE' attr */
attr += ike_attribute_print(attr, IPSEC_DOI,
len - (attr-buf));
ike_tab_level--;
break;
case NOTIFY_IPSEC_REPLAY_STATUS:
replay = (u_int32_t *)&np->data[np->spi_size];
printf("REPLAY STATUS [%sabled] ", *replay ? "en" : "dis");
if (np->spi_size == 16)
printf("(%s)", ike_get_cookie (&np->data[0],
&np->data[8]));
else
printf("SPI: 0x%08x", np->data[0]<<24 |
np->data[1]<<16 | np->data[2]<<8 | np->data[3]);
break;
case NOTIFY_IPSEC_INITIAL_CONTACT:
printf("INITIAL CONTACT (%s)", ike_get_cookie (&np->data[0],
&np->data[8]));
break;
case NOTIFY_STATUS_DPD_R_U_THERE:
case NOTIFY_STATUS_DPD_R_U_THERE_ACK:
printf("STATUS_DPD_R_U_THERE%s ",
type == NOTIFY_STATUS_DPD_R_U_THERE ? "" : "_ACK");
if (np->spi_size != 16 ||
len < sizeof(struct notification_payload) +
sizeof(u_int32_t))
printf("[bad notify]");
else {
seq = (u_int32_t *)&np->data[np->spi_size];
printf("seq %u", ntohl(*seq));
}
break;
default:
printf("%d (unknown)", type);
break;
}
}
void
ike_pl_vendor_print (u_int8_t *buf, int len, u_int8_t doi)
{
struct vendor_payload *vp = (struct vendor_payload *)buf;
u_int8_t *p;
int i;
if (len < sizeof(struct vendor_payload)) {
printf(" [|payload]");
return;
}
for (i = 0; i < sizeof vendor_ids / sizeof vendor_ids[0]; i ++)
if (memcmp(vp->vid, vendor_ids[i].vid,
vendor_ids[i].len) == 0) {
printf (" (supports %s)", vendor_ids[i].name);
return;
}
if (doi != IPSEC_DOI)
return;
printf(" \"");
for (p = vp->vid; (int)(p - buf) < len; p++)
printf("%c", (isprint(*p) ? *p : '.'));
printf("\"");
}
/* IKE mode-config. */
int
ike_cfg_attribute_print (u_int8_t *buf, int attr_type, int maxlen)
{
static char *attrs[] = IKE_CFG_ATTRIBUTE_INITIALIZER;
char ntop_buf[INET6_ADDRSTRLEN];
struct in_addr in;
u_int8_t af = buf[0] >> 7;
u_int16_t type = (buf[0] & 0x7f) << 8 | buf[1];
u_int16_t len = af ? 2 : buf[2] << 8 | buf[3], p;
u_int8_t *val = af ? buf + 2 : buf + 4;
printf("\n\t%sattribute %s = ", ike_tab_offset(),
type < (sizeof attrs / sizeof attrs[0]) ? attrs[type] :
"<unknown>");
if ((af == 1 && maxlen < 4) ||
(af == 0 && maxlen < (len + 4))) {
printf("\n\t%s[|attr]", ike_tab_offset());
return maxlen;
}
/* XXX The 2nd term is for bug compatibility with PGPnet. */
if (len == 0 || (af && !val[0] && !val[1])) {
printf("<none>");
return 4;
}
/* XXX Generally lengths are not checked well below. */
switch (type) {
case IKE_CFG_ATTR_INTERNAL_IP4_ADDRESS:
case IKE_CFG_ATTR_INTERNAL_IP4_NETMASK:
case IKE_CFG_ATTR_INTERNAL_IP4_DNS:
case IKE_CFG_ATTR_INTERNAL_IP4_NBNS:
case IKE_CFG_ATTR_INTERNAL_IP4_DHCP:
memcpy (&in.s_addr, val, sizeof in);
printf("%s", inet_ntoa (in));
break;
case IKE_CFG_ATTR_INTERNAL_IP6_ADDRESS:
case IKE_CFG_ATTR_INTERNAL_IP6_NETMASK:
case IKE_CFG_ATTR_INTERNAL_IP6_DNS:
case IKE_CFG_ATTR_INTERNAL_IP6_NBNS:
case IKE_CFG_ATTR_INTERNAL_IP6_DHCP:
printf("%s", inet_ntop (AF_INET6, val, ntop_buf,
sizeof ntop_buf));
break;
case IKE_CFG_ATTR_INTERNAL_IP4_SUBNET:
memcpy(&in.s_addr, val, sizeof in);
printf("%s/", inet_ntoa (in));
memcpy(&in.s_addr, val + sizeof in, sizeof in);
printf("%s", inet_ntoa (in));
break;
case IKE_CFG_ATTR_INTERNAL_IP6_SUBNET:
printf("%s/%u", inet_ntop (AF_INET6, val, ntop_buf,
sizeof ntop_buf), val[16]);
break;
case IKE_CFG_ATTR_INTERNAL_ADDRESS_EXPIRY:
printf("%u seconds",
val[0] << 24 | val[1] << 16 | val[2] << 8 | val[3]);
break;
case IKE_CFG_ATTR_APPLICATION_VERSION:
for (p = 0; p < len; p++)
printf("%c", isprint(val[p]) ? val[p] : '.');
break;
case IKE_CFG_ATTR_SUPPORTED_ATTRIBUTES:
printf("<%d attributes>", len / 2);
ike_tab_level++;
for (p = 0; p < len; p += 2) {
type = (val[p] << 8 | val[p + 1]) & 0x7fff;
printf("\n\t%s%s", ike_tab_offset(),
type < (sizeof attrs/sizeof attrs[0]) ?
attrs[type] : "<unknown>");
}
ike_tab_level--;
break;
default:
break;
}
return af ? 4 : len + 4;
}
void
ike_pl_attribute_print (u_int8_t *buf, int len)
{
struct attribute_payload *ap = (struct attribute_payload *)buf;
static const char *pl_attr[] = IKE_CFG_ATTRIBUTE_TYPE_INITIALIZER;
u_int8_t *attr = buf + sizeof(struct attribute_payload);
if (len < sizeof(struct attribute_payload)) {
printf(" [|payload]");
return;
}
printf(" type: %s Id: %d",
ap->type < (sizeof pl_attr/sizeof pl_attr[0]) ? pl_attr[ap->type] :
"<unknown>", ap->id);
while ((int)(attr - buf) < len)
attr += ike_cfg_attribute_print(attr, ap->type,
len - (attr - buf));
}
void
ike_pl_print (u_int8_t type, u_int8_t *buf, u_int8_t doi)
{
static const char *pltypes[] = IKE_PAYLOAD_TYPES_INITIALIZER;
static const char *plprivtypes[] =
IKE_PRIVATE_PAYLOAD_TYPES_INITIALIZER;
u_int8_t next_type;
u_int16_t this_len;
if (&buf[4] > snapend) {
goto pltrunc;
}
next_type = buf[0];
this_len = buf[2]<<8 | buf[3];
if (type < PAYLOAD_PRIVATE_MIN || type >= PAYLOAD_PRIVATE_MAX)
printf("\n\t%spayload: %s len: %hu", ike_tab_offset(),
(type < (sizeof pltypes/sizeof pltypes[0]) ?
pltypes[type] : "<unknown>"), this_len);
else
printf("\n\t%spayload: %s len: %hu", ike_tab_offset(),
plprivtypes[type - PAYLOAD_PRIVATE_MIN], this_len);
if ((type < PAYLOAD_RESERVED_MIN &&
this_len < min_payload_lengths[type]) || this_len == 0)
goto pltrunc;
if ((type > PAYLOAD_PRIVATE_MIN && type < PAYLOAD_PRIVATE_MAX &&
this_len < min_priv_payload_lengths[type - PAYLOAD_PRIVATE_MIN]) ||
this_len == 0)
goto pltrunc;
if (buf + this_len > snapend)
goto pltrunc;
ike_tab_level++;
switch (type) {
case PAYLOAD_NONE:
return;
case PAYLOAD_SA:
ike_pl_sa_print(buf, this_len);
break;
case PAYLOAD_PROPOSAL:
ike_pl_proposal_print(buf, this_len, doi);
break;
case PAYLOAD_TRANSFORM:
ike_pl_transform_print(buf, this_len, doi);
break;
case PAYLOAD_KE:
ike_pl_ke_print(buf, this_len, doi);
break;
case PAYLOAD_ID:
/* Should only happen with IPsec DOI */
ipsec_id_print(buf, this_len, doi);
break;
case PAYLOAD_CERT:
case PAYLOAD_CERTREQUEST:
case PAYLOAD_HASH:
case PAYLOAD_SIG:
case PAYLOAD_NONCE:
break;
case PAYLOAD_DELETE:
ike_pl_delete_print(buf, this_len);
break;
case PAYLOAD_NOTIFICATION:
ike_pl_notification_print(buf, this_len);
break;
case PAYLOAD_VENDOR:
ike_pl_vendor_print(buf, this_len, doi);
break;
case PAYLOAD_ATTRIBUTE:
ike_pl_attribute_print(buf, this_len);
break;
case PAYLOAD_SAK:
case PAYLOAD_SAT:
case PAYLOAD_KD:
case PAYLOAD_SEQ:
case PAYLOAD_POP:
case PAYLOAD_NAT_D:
case PAYLOAD_NAT_OA:
case PAYLOAD_NAT_D_DRAFT:
case PAYLOAD_NAT_OA_DRAFT:
break;
default:
break;
}
ike_tab_level--;
if (next_type) /* Recurse over next payload */
ike_pl_print(next_type, buf + this_len, doi);
return;
pltrunc:
if (doi == ISAKMP_DOI)
fputs(" [|isakmp]", stdout);
else
fputs(" [|ipsec]", stdout);
}