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freebsd-skq/lib/libipsec/pfkey_dump.c
Pedro F. Giffuni 8a16b7a18f General further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00

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/* $KAME: pfkey_dump.c,v 1.45 2003/09/08 10:14:56 itojun Exp $ */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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 <net/if.h>
#include <net/pfkeyv2.h>
#include <netipsec/ipsec.h>
#include <netipsec/key_var.h>
#include <netipsec/key_debug.h>
#include <netinet/in.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",
"policy",
"tcp"
};
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", },
{ SADB_X_AALG_TCP_MD5, "tcp-md5", },
#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
#ifdef SADB_X_EALG_AESGCM16
{ SADB_X_EALG_AESGCM16, "aes-gcm-16", },
#endif
#ifdef SADB_X_EALG_CAMELLIACBC
{ SADB_X_EALG_CAMELLIACBC, "camellia-cbc", },
#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, },
};
static struct val2str str_sp_scope[] = {
{ IPSEC_POLICYSCOPE_GLOBAL, "global" },
{ IPSEC_POLICYSCOPE_IFNET, "ifnet" },
{ IPSEC_POLICYSCOPE_PCB, "pcb"},
{ -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;
struct sadb_x_sa_replay *m_sa_replay;
struct sadb_x_nat_t_type *natt_type;
struct sadb_x_nat_t_port *natt_sport, *natt_dport;
struct sadb_address *natt_oai, *natt_oar;
/* 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];
m_sa_replay = (struct sadb_x_sa_replay *)mhp[SADB_X_EXT_SA_REPLAY];
natt_type = (struct sadb_x_nat_t_type *)mhp[SADB_X_EXT_NAT_T_TYPE];
natt_sport = (struct sadb_x_nat_t_port *)mhp[SADB_X_EXT_NAT_T_SPORT];
natt_dport = (struct sadb_x_nat_t_port *)mhp[SADB_X_EXT_NAT_T_DPORT];
natt_oai = (struct sadb_address *)mhp[SADB_X_EXT_NAT_T_OAI];
natt_oar = (struct sadb_address *)mhp[SADB_X_EXT_NAT_T_OAR];
/* source address */
if (m_saddr == NULL) {
printf("no ADDRESS_SRC extension.\n");
return;
}
printf("%s", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
if (natt_type != NULL && natt_sport != NULL)
printf("[%u]", ntohs(natt_sport->sadb_x_nat_t_port_port));
/* destination address */
if (m_daddr == NULL) {
printf("\nno ADDRESS_DST extension.\n");
return;
}
printf(" %s", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
if (natt_type != NULL && natt_dport != NULL)
printf("[%u]", ntohs(natt_dport->sadb_x_nat_t_port_port));
/* SA type */
if (m_sa == NULL) {
printf("\nno SA extension.\n");
return;
}
if (m_sa2 == NULL) {
printf("\nno SA2 extension.\n");
return;
}
printf("\n\t");
if (m->sadb_msg_satype == SADB_SATYPE_ESP && natt_type != NULL)
printf("esp-udp ");
else
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);
/* other NAT-T information */
if (natt_type != NULL && (natt_oai != NULL || natt_oar != NULL)) {
printf("\tNAT:");
if (natt_oai != NULL)
printf(" OAI=%s",
str_ipaddr((struct sockaddr *)(natt_oai + 1)));
if (natt_oar != NULL)
printf(" OAR=%s",
str_ipaddr((struct sockaddr *)(natt_oar + 1)));
printf("\n");
}
/* 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_replay ? (m_sa_replay->sadb_x_sa_replay_replay >> 3) :
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(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 scope=",
(u_long)m_xpl->sadb_x_policy_id,
(u_long)m->sadb_msg_seq,
(u_long)m->sadb_msg_pid);
GETMSGV2S(str_sp_scope, m_xpl->sadb_x_policy_scope);
if (m_xpl->sadb_x_policy_scope == IPSEC_POLICYSCOPE_IFNET &&
if_indextoname(m_xpl->sadb_x_policy_ifindex, pbuf) != NULL)
printf("ifname=%s", pbuf);
printf("\n");
/* 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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