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freebsd-skq/lib/libipsec/pfkey_dump.c
ume 1b0d2b237e - plug memory leak. 
- fixed a length of the sadb extension in the case of pfkey_send_x5().
- used getprotobynumber() for printing a upper layer protocol name.
- modified the output format against the change of the setkey syntax
  about a icmp6 type/code.
- don't enumerate reserved fields.  use memset.

Obtained from:	KAME
2003-11-05 09:41:23 +00:00

630 lines
15 KiB
C
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/* $KAME: pfkey_dump.c,v 1.45 2003/09/08 10:14:56 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
* 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.
* 3. Neither the name of the project 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 BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet6/ipsec.h>
#include <net/pfkeyv2.h>
#include <netkey/key_var.h>
#include <netkey/key_debug.h>
#include <netinet/in.h>
#include <netinet6/ipsec.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <netdb.h>
#include "ipsec_strerror.h"
#include "libpfkey.h"
/* cope with old kame headers - ugly */
#ifndef SADB_X_AALG_MD5
#define SADB_X_AALG_MD5 SADB_AALG_MD5
#endif
#ifndef SADB_X_AALG_SHA
#define SADB_X_AALG_SHA SADB_AALG_SHA
#endif
#ifndef SADB_X_AALG_NULL
#define SADB_X_AALG_NULL SADB_AALG_NULL
#endif
#ifndef SADB_X_EALG_BLOWFISHCBC
#define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC
#endif
#ifndef SADB_X_EALG_CAST128CBC
#define SADB_X_EALG_CAST128CBC SADB_EALG_CAST128CBC
#endif
#ifndef SADB_X_EALG_RC5CBC
#ifdef SADB_EALG_RC5CBC
#define SADB_X_EALG_RC5CBC SADB_EALG_RC5CBC
#endif
#endif
#define GETMSGSTR(str, num) \
do { \
if (sizeof((str)[0]) == 0 \
|| num >= sizeof(str)/sizeof((str)[0])) \
printf("%u ", (num)); \
else if (strlen((str)[(num)]) == 0) \
printf("%u ", (num)); \
else \
printf("%s ", (str)[(num)]); \
} while (0)
#define GETMSGV2S(v2s, num) \
do { \
struct val2str *p; \
for (p = (v2s); p && p->str; p++) { \
if (p->val == (num)) \
break; \
} \
if (p && p->str) \
printf("%s ", p->str); \
else \
printf("%u ", (num)); \
} while (0)
static char *str_ipaddr(struct sockaddr *);
static char *str_prefport(u_int, u_int, u_int, u_int);
static void str_upperspec(u_int, u_int, u_int);
static char *str_time(time_t);
static void str_lifetime_byte(struct sadb_lifetime *, char *);
struct val2str {
int val;
const char *str;
};
/*
* Must to be re-written about following strings.
*/
static char *str_satype[] = {
"unspec",
"unknown",
"ah",
"esp",
"unknown",
"rsvp",
"ospfv2",
"ripv2",
"mip",
"ipcomp",
};
static char *str_mode[] = {
"any",
"transport",
"tunnel",
};
static char *str_state[] = {
"larval",
"mature",
"dying",
"dead",
};
static struct val2str str_alg_auth[] = {
{ SADB_AALG_NONE, "none", },
{ SADB_AALG_MD5HMAC, "hmac-md5", },
{ SADB_AALG_SHA1HMAC, "hmac-sha1", },
{ SADB_X_AALG_MD5, "md5", },
{ SADB_X_AALG_SHA, "sha", },
{ SADB_X_AALG_NULL, "null", },
#ifdef SADB_X_AALG_SHA2_256
{ SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
#endif
#ifdef SADB_X_AALG_SHA2_384
{ SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
#endif
#ifdef SADB_X_AALG_SHA2_512
{ SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
#endif
#ifdef SADB_X_AALG_RIPEMD160HMAC
{ SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", },
#endif
#ifdef SADB_X_AALG_AES_XCBC_MAC
{ SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
#endif
{ -1, NULL, },
};
static struct val2str str_alg_enc[] = {
{ SADB_EALG_NONE, "none", },
{ SADB_EALG_DESCBC, "des-cbc", },
{ SADB_EALG_3DESCBC, "3des-cbc", },
{ SADB_EALG_NULL, "null", },
#ifdef SADB_X_EALG_RC5CBC
{ SADB_X_EALG_RC5CBC, "rc5-cbc", },
#endif
{ SADB_X_EALG_CAST128CBC, "cast128-cbc", },
{ SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
#ifdef SADB_X_EALG_RIJNDAELCBC
{ SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
#endif
#ifdef SADB_X_EALG_TWOFISHCBC
{ SADB_X_EALG_TWOFISHCBC, "twofish-cbc", },
#endif
#ifdef SADB_X_EALG_AESCTR
{ SADB_X_EALG_AESCTR, "aes-ctr", },
#endif
{ -1, NULL, },
};
static struct val2str str_alg_comp[] = {
{ SADB_X_CALG_NONE, "none", },
{ SADB_X_CALG_OUI, "oui", },
{ SADB_X_CALG_DEFLATE, "deflate", },
{ SADB_X_CALG_LZS, "lzs", },
{ -1, NULL, },
};
/*
* dump SADB_MSG formated. For debugging, you should use kdebug_sadb().
*/
void
pfkey_sadump(m)
struct sadb_msg *m;
{
caddr_t mhp[SADB_EXT_MAX + 1];
struct sadb_sa *m_sa;
struct sadb_x_sa2 *m_sa2;
struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
struct sadb_address *m_saddr, *m_daddr, *m_paddr;
struct sadb_key *m_auth, *m_enc;
struct sadb_ident *m_sid, *m_did;
struct sadb_sens *m_sens;
/* check pfkey message. */
if (pfkey_align(m, mhp)) {
printf("%s\n", ipsec_strerror());
return;
}
if (pfkey_check(mhp)) {
printf("%s\n", ipsec_strerror());
return;
}
m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA];
m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2];
m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY];
m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY];
/* source address */
if (m_saddr == NULL) {
printf("no ADDRESS_SRC extension.\n");
return;
}
printf("%s ", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
/* destination address */
if (m_daddr == NULL) {
printf("no ADDRESS_DST extension.\n");
return;
}
printf("%s ", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
/* SA type */
if (m_sa == NULL) {
printf("no SA extension.\n");
return;
}
if (m_sa2 == NULL) {
printf("no SA2 extension.\n");
return;
}
printf("\n\t");
GETMSGSTR(str_satype, m->sadb_msg_satype);
printf("mode=");
GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
(u_int32_t)ntohl(m_sa->sadb_sa_spi),
(u_int32_t)ntohl(m_sa->sadb_sa_spi),
(u_int32_t)m_sa2->sadb_x_sa2_reqid,
(u_int32_t)m_sa2->sadb_x_sa2_reqid);
/* encryption key */
if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
printf("\tC: ");
GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
} else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
if (m_enc != NULL) {
printf("\tE: ");
GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
m_enc->sadb_key_bits / 8);
printf("\n");
}
}
/* authentication key */
if (m_auth != NULL) {
printf("\tA: ");
GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
m_auth->sadb_key_bits / 8);
printf("\n");
}
/* replay windoe size & flags */
printf("\tseq=0x%08x replay=%u flags=0x%08x ",
m_sa2->sadb_x_sa2_sequence,
m_sa->sadb_sa_replay,
m_sa->sadb_sa_flags);
/* state */
printf("state=");
GETMSGSTR(str_state, m_sa->sadb_sa_state);
printf("\n");
/* lifetime */
if (m_lftc != NULL) {
time_t tmp_time = time(0);
printf("\tcreated: %s",
str_time(m_lftc->sadb_lifetime_addtime));
printf("\tcurrent: %s\n", str_time(tmp_time));
printf("\tdiff: %lu(s)",
(u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));
printf("\thard: %lu(s)",
(u_long)(m_lfth == NULL ?
0 : m_lfth->sadb_lifetime_addtime));
printf("\tsoft: %lu(s)\n",
(u_long)(m_lfts == NULL ?
0 : m_lfts->sadb_lifetime_addtime));
printf("\tlast: %s",
str_time(m_lftc->sadb_lifetime_usetime));
printf("\thard: %lu(s)",
(u_long)(m_lfth == NULL ?
0 : m_lfth->sadb_lifetime_usetime));
printf("\tsoft: %lu(s)\n",
(u_long)(m_lfts == NULL ?
0 : m_lfts->sadb_lifetime_usetime));
str_lifetime_byte(m_lftc, "current");
str_lifetime_byte(m_lfth, "hard");
str_lifetime_byte(m_lfts, "soft");
printf("\n");
printf("\tallocated: %lu",
(unsigned long)m_lftc->sadb_lifetime_allocations);
printf("\thard: %lu",
(u_long)(m_lfth == NULL ?
0 : m_lfth->sadb_lifetime_allocations));
printf("\tsoft: %lu\n",
(u_long)(m_lfts == NULL ?
0 : m_lfts->sadb_lifetime_allocations));
}
printf("\tsadb_seq=%lu pid=%lu ",
(u_long)m->sadb_msg_seq,
(u_long)m->sadb_msg_pid);
/* XXX DEBUG */
printf("refcnt=%u\n", m->sadb_msg_reserved);
return;
}
void
pfkey_spdump(m)
struct sadb_msg *m;
{
char pbuf[NI_MAXSERV];
caddr_t mhp[SADB_EXT_MAX + 1];
struct sadb_address *m_saddr, *m_daddr;
struct sadb_x_policy *m_xpl;
struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL;
struct sockaddr *sa;
u_int16_t sport = 0, dport = 0;
/* check pfkey message. */
if (pfkey_align(m, mhp)) {
printf("%s\n", ipsec_strerror());
return;
}
if (pfkey_check(mhp)) {
printf("%s\n", ipsec_strerror());
return;
}
m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
if (m_saddr && m_daddr) {
/* source address */
sa = (struct sockaddr *)(m_saddr + 1);
switch (sa->sa_family) {
case AF_INET:
case AF_INET6:
if (getnameinfo(sa, sa->sa_len, NULL, 0,
pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
sport = 0; /*XXX*/
else
sport = atoi(pbuf);
printf("%s%s ", str_ipaddr(sa),
str_prefport(sa->sa_family,
m_saddr->sadb_address_prefixlen, sport,
m_saddr->sadb_address_proto));
break;
default:
printf("unknown-af ");
break;
}
/* destination address */
sa = (struct sockaddr *)(m_daddr + 1);
switch (sa->sa_family) {
case AF_INET:
case AF_INET6:
if (getnameinfo(sa, sa->sa_len, NULL, 0,
pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
dport = 0; /*XXX*/
else
dport = atoi(pbuf);
printf("%s%s ", str_ipaddr(sa),
str_prefport(sa->sa_family,
m_daddr->sadb_address_prefixlen, dport,
m_saddr->sadb_address_proto));
break;
default:
printf("unknown-af ");
break;
}
/* upper layer protocol */
if (m_saddr->sadb_address_proto !=
m_daddr->sadb_address_proto) {
printf("upper layer protocol mismatched.\n");
return;
}
str_upperspec(m_saddr->sadb_address_proto, sport, dport);
}
else
printf("(no selector, probably per-socket policy) ");
/* policy */
{
char *d_xpl;
if (m_xpl == NULL) {
printf("no X_POLICY extension.\n");
return;
}
d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
/* dump SPD */
printf("\n\t%s\n", d_xpl);
free(d_xpl);
}
/* lifetime */
if (m_lftc) {
printf("\tcreated: %s ",
str_time(m_lftc->sadb_lifetime_addtime));
printf("lastused: %s\n",
str_time(m_lftc->sadb_lifetime_usetime));
}
if (m_lfth) {
printf("\tlifetime: %lu(s) ",
(u_long)m_lfth->sadb_lifetime_addtime);
printf("validtime: %lu(s)\n",
(u_long)m_lfth->sadb_lifetime_usetime);
}
printf("\tspid=%ld seq=%ld pid=%ld\n",
(u_long)m_xpl->sadb_x_policy_id,
(u_long)m->sadb_msg_seq,
(u_long)m->sadb_msg_pid);
/* XXX TEST */
printf("\trefcnt=%u\n", m->sadb_msg_reserved);
return;
}
/*
* set "ipaddress" to buffer.
*/
static char *
str_ipaddr(sa)
struct sockaddr *sa;
{
static char buf[NI_MAXHOST];
const int niflag = NI_NUMERICHOST;
if (sa == NULL)
return "";
if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
return buf;
return NULL;
}
/*
* set "/prefix[port number]" to buffer.
*/
static char *
str_prefport(family, pref, port, ulp)
u_int family, pref, port, ulp;
{
static char buf[128];
char prefbuf[128];
char portbuf[128];
int plen;
switch (family) {
case AF_INET:
plen = sizeof(struct in_addr) << 3;
break;
case AF_INET6:
plen = sizeof(struct in6_addr) << 3;
break;
default:
return "?";
}
if (pref == plen)
prefbuf[0] = '\0';
else
snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
if (ulp == IPPROTO_ICMPV6)
memset(portbuf, 0, sizeof(portbuf));
else {
if (port == IPSEC_PORT_ANY)
snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
else
snprintf(portbuf, sizeof(portbuf), "[%u]", port);
}
snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
return buf;
}
static void
str_upperspec(ulp, p1, p2)
u_int ulp, p1, p2;
{
if (ulp == IPSEC_ULPROTO_ANY)
printf("any");
else if (ulp == IPPROTO_ICMPV6) {
printf("icmp6");
if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY))
printf(" %u,%u", p1, p2);
} else {
struct protoent *ent;
switch (ulp) {
case IPPROTO_IPV4:
printf("ip4");
break;
default:
ent = getprotobynumber(ulp);
if (ent)
printf("%s", ent->p_name);
else
printf("%u", ulp);
endprotoent();
break;
}
}
}
/*
* set "Mon Day Time Year" to buffer
*/
static char *
str_time(t)
time_t t;
{
static char buf[128];
if (t == 0) {
int i = 0;
for (;i < 20;) buf[i++] = ' ';
} else {
char *t0;
t0 = ctime(&t);
memcpy(buf, t0 + 4, 20);
}
buf[20] = '\0';
return(buf);
}
static void
str_lifetime_byte(x, str)
struct sadb_lifetime *x;
char *str;
{
double y;
char *unit;
int w;
if (x == NULL) {
printf("\t%s: 0(bytes)", str);
return;
}
#if 0
if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
unit = "M";
w = 1;
} else if ((x->sadb_lifetime_bytes) / 1024) {
y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
unit = "K";
w = 1;
} else {
y = (x->sadb_lifetime_bytes) * 1.0;
unit = "";
w = 0;
}
#else
y = (x->sadb_lifetime_bytes) * 1.0;
unit = "";
w = 0;
#endif
printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
}
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