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/* $OpenBSD: pfkdump.c,v 1.2 2005/05/27 05:48:10 hshoexer Exp $ */
/*
* Copyright (c) 2003 Markus Friedl. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <sys/sysctl.h>
#include <net/pfkeyv2.h>
#include <netinet/ip_ipsp.h>
#include <netdb.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
#include "ipsecctl.h"
#include "pfkey.h"
static void print_sa(struct sadb_ext *, struct sadb_msg *);
static void print_addr(struct sadb_ext *, struct sadb_msg *);
static void print_key(struct sadb_ext *, struct sadb_msg *);
static void print_life(struct sadb_ext *, struct sadb_msg *);
static void print_ident(struct sadb_ext *, struct sadb_msg *);
static void print_auth(struct sadb_ext *, struct sadb_msg *);
static void print_udpenc(struct sadb_ext *, struct sadb_msg *);
static struct idname *lookup(struct idname [], u_int8_t);
static char *lookup_name(struct idname [], u_int8_t);
static void print_ext(struct sadb_ext *, struct sadb_msg *, int);
void pfkey_print_sa(struct sadb_msg *, int);
struct idname {
u_int8_t id;
char *name;
void (*func)(struct sadb_ext *, struct sadb_msg *);
};
struct idname ext_types[] = {
{ SADB_EXT_RESERVED, "reserved", NULL },
{ SADB_EXT_SA, "sa", print_sa},
{ SADB_EXT_LIFETIME_CURRENT, "lifetime_cur", print_life },
{ SADB_EXT_LIFETIME_HARD, "lifetime_hard", print_life },
{ SADB_EXT_LIFETIME_SOFT, "lifetime_soft", print_life },
{ SADB_EXT_ADDRESS_SRC, "address_src", print_addr},
{ SADB_EXT_ADDRESS_DST, "address_dst", print_addr},
{ SADB_EXT_KEY_AUTH, "key_auth", print_key},
{ SADB_EXT_KEY_ENCRYPT, "key_encrypt", print_key},
{ SADB_EXT_IDENTITY_SRC, "identity_src", print_ident },
{ SADB_EXT_IDENTITY_DST, "identity_dst", print_ident },
{ SADB_X_EXT_REMOTE_AUTH, "remote_auth", print_auth },
{ SADB_X_EXT_UDPENCAP, "udpencap", print_udpenc },
{ SADB_X_EXT_LIFETIME_LASTUSE, "lifetime_lastuse", print_life },
{ 0, NULL, NULL }
};
struct idname sa_types[] = {
{ SADB_SATYPE_UNSPEC, "unspec", NULL },
{ SADB_SATYPE_AH, "ah", NULL },
{ SADB_SATYPE_ESP, "esp", NULL },
{ SADB_SATYPE_RSVP, "rsvp", NULL },
{ SADB_SATYPE_OSPFV2, "ospfv2", NULL },
{ SADB_SATYPE_RIPV2, "ripv2", NULL },
{ SADB_SATYPE_MIP, "mip", NULL },
{ SADB_X_SATYPE_IPIP, "ipip", NULL },
{ SADB_X_SATYPE_TCPSIGNATURE, "tcpmd5", NULL },
{ SADB_X_SATYPE_IPCOMP, "ipcomp", NULL },
{ 0, NULL, NULL }
};
struct idname auth_types[] = {
{ SADB_AALG_NONE, "none", NULL },
{ SADB_X_AALG_DES, "des", NULL },
{ SADB_AALG_MD5HMAC, "hmac-md5", NULL },
{ SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", NULL },
{ SADB_AALG_SHA1HMAC, "hmac-sha1", NULL },
{ SADB_X_AALG_SHA2_256, "hmac-sha2-256", NULL },
{ SADB_X_AALG_SHA2_384, "hmac-sha2-384", NULL },
{ SADB_X_AALG_SHA2_512, "hmac-sha2-512", NULL },
{ SADB_X_AALG_MD5, "md5", NULL },
{ SADB_X_AALG_SHA1, "sha1", NULL },
{ 0, NULL, NULL }
};
struct idname enc_types[] = {
{ SADB_EALG_NONE, "none", NULL },
{ SADB_EALG_3DESCBC, "3des-cbc", NULL },
{ SADB_EALG_DESCBC, "des-cbc", NULL },
{ SADB_X_EALG_3IDEA, "idea3", NULL },
{ SADB_X_EALG_AES, "aes", NULL },
{ SADB_X_EALG_AESCTR, "aesctr", NULL },
{ SADB_X_EALG_BLF, "blowfish", NULL },
{ SADB_X_EALG_CAST, "cast128", NULL },
{ SADB_X_EALG_DES_IV32, "des-iv32", NULL },
{ SADB_X_EALG_DES_IV64, "des-iv64", NULL },
{ SADB_X_EALG_IDEA, "idea", NULL },
{ SADB_EALG_NULL, "null", NULL },
{ SADB_X_EALG_RC4, "rc4", NULL },
{ SADB_X_EALG_RC5, "rc5", NULL },
{ SADB_X_EALG_SKIPJACK, "skipjack", NULL },
{ 0, NULL, NULL }
};
struct idname comp_types[] = {
{ SADB_X_CALG_NONE, "none", NULL },
{ SADB_X_CALG_OUI, "oui", NULL },
{ SADB_X_CALG_DEFLATE, "deflate", NULL },
{ SADB_X_CALG_LZS, "lzs", NULL },
{ 0, NULL, NULL }
};
struct idname xauth_types[] = {
{ SADB_X_AUTHTYPE_NONE, "none", NULL },
{ SADB_X_AUTHTYPE_PASSPHRASE, "passphrase", NULL },
{ SADB_X_AUTHTYPE_RSA, "rsa", NULL },
{ 0, NULL, NULL }
};
struct idname identity_types[] = {
{ SADB_IDENTTYPE_RESERVED, "reserved", NULL },
{ SADB_IDENTTYPE_PREFIX, "prefix", NULL },
{ SADB_IDENTTYPE_FQDN, "fqdn", NULL },
{ SADB_IDENTTYPE_USERFQDN, "ufqdn", NULL },
{ SADB_X_IDENTTYPE_CONNECTION, "x_connection", NULL },
{ 0, NULL, NULL }
};
static struct idname *
lookup(struct idname tab[], u_int8_t id)
{
struct idname *entry;
for (entry = tab; entry->name; entry++)
if (entry->id == id)
return (entry);
return (NULL);
}
static char *
lookup_name(struct idname tab[], u_int8_t id)
{
struct idname *entry;
entry = lookup(tab, id);
return (entry ? entry->name : "unknown");
}
static void
print_ext(struct sadb_ext *ext, struct sadb_msg *msg, int opts)
{
struct idname *entry;
if ((entry = lookup(ext_types, ext->sadb_ext_type)) == NULL) {
printf("unknown ext: type %u len %u\n",
ext->sadb_ext_type, ext->sadb_ext_len);
return;
}
if (!(opts & IPSECCTL_OPT_VERBOSE) && entry->id != SADB_EXT_SA)
return;
if (entry->id != SADB_EXT_SA)
printf("\t%s: ", entry->name);
if (entry->func != NULL)
(*entry->func)(ext, msg);
else
printf("type %u len %u\n",
ext->sadb_ext_type, ext->sadb_ext_len);
}
static void
print_sa(struct sadb_ext *ext, struct sadb_msg *msg)
{
struct sadb_sa *sa = (struct sadb_sa *) ext;
if (msg->sadb_msg_satype == SADB_X_SATYPE_IPCOMP)
printf("cpi 0x%8.8x comp %s",
ntohl(sa->sadb_sa_spi),
lookup_name(comp_types, sa->sadb_sa_encrypt));
else
printf("spi 0x%8.8x auth %s enc %s",
ntohl(sa->sadb_sa_spi),
lookup_name(auth_types, sa->sadb_sa_auth),
lookup_name(enc_types, sa->sadb_sa_encrypt));
if (sa->sadb_sa_flags & SADB_X_SAFLAGS_TUNNEL)
printf(" tunnel");
printf("\n");
}
static void
print_addr(struct sadb_ext *ext, struct sadb_msg *msg)
{
struct sadb_address *addr = (struct sadb_address *) ext;
struct sockaddr *sa;
struct sockaddr_in *sin4;
struct sockaddr_in6 *sin6;
char hbuf[NI_MAXHOST];
sa = (struct sockaddr *)(addr + 1);
if (sa->sa_family == 0)
printf("<any>");
else if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), NULL, 0,
NI_NUMERICHOST))
printf("<could not get numeric hostname>");
else
printf("%s", hbuf);
switch (sa->sa_family) {
case AF_INET:
sin4 = (struct sockaddr_in *)sa;
if (sin4->sin_port)
printf(" port %u", ntohs(sin4->sin_port));
break;
case AF_INET6:
sin6 = (struct sockaddr_in6 *)sa;
if (sin6->sin6_port)
printf(" port %u", ntohs(sin6->sin6_port));
break;
}
printf("\n");
}
static void
print_key(struct sadb_ext *ext, struct sadb_msg *msg)
{
struct sadb_key *key = (struct sadb_key *) ext;
u_int8_t *data;
int i;
printf("bits %u: ", key->sadb_key_bits);
data = (u_int8_t *)(key + 1);
for (i = 0; i < key->sadb_key_bits / 8; i++) {
printf("%2.2x", data[i]);
data[i] = 0x00; /* clear sensitive data */
}
printf("\n");
}
static void
print_life(struct sadb_ext *ext, struct sadb_msg *msg)
{
struct sadb_lifetime *life = (struct sadb_lifetime *) ext;
printf("alloc %u bytes %llu add %llu first %llu\n",
life->sadb_lifetime_allocations,
life->sadb_lifetime_bytes,
life->sadb_lifetime_addtime,
life->sadb_lifetime_usetime);
}
static void
print_ident(struct sadb_ext *ext, struct sadb_msg *msg)
{
struct sadb_ident *ident = (struct sadb_ident *) ext;
printf("type %s id %llu: %s\n",
lookup_name(identity_types, ident->sadb_ident_type),
ident->sadb_ident_id, (char *)(ident + 1));
}
static void
print_auth(struct sadb_ext *ext, struct sadb_msg *msg)
{
struct sadb_x_cred *x_cred = (struct sadb_x_cred *) ext;
printf("type %s\n",
lookup_name(xauth_types, x_cred->sadb_x_cred_type));
}
static void
print_udpenc(struct sadb_ext *ext, struct sadb_msg *msg)
{
struct sadb_x_udpencap *x_udpencap = (struct sadb_x_udpencap *) ext;
printf("udpencap port %u\n", ntohs(x_udpencap->sadb_x_udpencap_port));
}
void
pfkey_print_sa(struct sadb_msg *msg, int opts)
{
struct sadb_ext *ext;
printf("%s ", lookup_name(sa_types, msg->sadb_msg_satype));
for (ext = (struct sadb_ext *)(msg + 1);
(size_t)((u_int8_t *)ext - (u_int8_t *)msg) <
msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0;
ext = (struct sadb_ext *)((u_int8_t *)ext +
ext->sadb_ext_len * PFKEYV2_CHUNK))
print_ext(ext, msg, opts);
fflush(stdout);
}
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