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Sourcecode: ipsec-tools version File versions

key_debug.c

/*    $KAME: key_debug.c,v 1.29 2001/08/16 14:25:41 itojun Exp $  */

/*
 * Copyright (C) 1995, 1996, 1997, and 1998 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef _KERNEL
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
#include "opt_inet.h"
#include "opt_inet6.h"
#include "opt_ipsec.h"
#endif
#ifdef __NetBSD__
#include "opt_inet.h"
#endif
#endif

#include <sys/types.h>
#include <sys/param.h>
#ifdef _KERNEL
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/queue.h>
#endif
#include <sys/socket.h>

#include <netinet/in.h>
#ifdef HAVE_NETINET6_IPSEC
#  include <netinet6/ipsec.h>
#else
#  include <netinet/ipsec.h>
#endif

#ifndef _KERNEL
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#endif /* !_KERNEL */

#include "config.h"
#include "libpfkey.h"

static void kdebug_sadb_prop __P((struct sadb_ext *));
static void kdebug_sadb_identity __P((struct sadb_ext *));
static void kdebug_sadb_supported __P((struct sadb_ext *));
static void kdebug_sadb_lifetime __P((struct sadb_ext *));
static void kdebug_sadb_sa __P((struct sadb_ext *));
static void kdebug_sadb_address __P((struct sadb_ext *));
static void kdebug_sadb_key __P((struct sadb_ext *));
static void kdebug_sadb_x_sa2 __P((struct sadb_ext *));
static void kdebug_sadb_x_policy __P((struct sadb_ext *ext));
static void kdebug_sockaddr __P((struct sockaddr *addr));

#ifdef SADB_X_EXT_NAT_T_TYPE
static void kdebug_sadb_x_nat_t_type __P((struct sadb_ext *ext));
static void kdebug_sadb_x_nat_t_port __P((struct sadb_ext *ext));
#endif

#ifdef _KERNEL
static void kdebug_secreplay __P((struct secreplay *));
#endif

#ifndef _KERNEL
#define panic(param)    { printf(param); exit(1); }
#endif

#include "libpfkey.h"
/* NOTE: host byte order */

/* %%%: about struct sadb_msg */
void
kdebug_sadb(base)
      struct sadb_msg *base;
{
      struct sadb_ext *ext;
      int tlen, extlen;

      /* sanity check */
      if (base == NULL)
            panic("kdebug_sadb: NULL pointer was passed.\n");

      printf("sadb_msg{ version=%u type=%u errno=%u satype=%u\n",
          base->sadb_msg_version, base->sadb_msg_type,
          base->sadb_msg_errno, base->sadb_msg_satype);
      printf("  len=%u reserved=%u seq=%u pid=%u\n",
          base->sadb_msg_len, base->sadb_msg_reserved,
          base->sadb_msg_seq, base->sadb_msg_pid);

      tlen = PFKEY_UNUNIT64(base->sadb_msg_len) - sizeof(struct sadb_msg);
      ext = (struct sadb_ext *)((caddr_t)base + sizeof(struct sadb_msg));

      while (tlen > 0) {
            printf("sadb_ext{ len=%u type=%u }\n",
                ext->sadb_ext_len, ext->sadb_ext_type);

            if (ext->sadb_ext_len == 0) {
                  printf("kdebug_sadb: invalid ext_len=0 was passed.\n");
                  return;
            }
            if (ext->sadb_ext_len > tlen) {
                  printf("kdebug_sadb: ext_len exceeds end of buffer.\n");
                  return;
            }

            switch (ext->sadb_ext_type) {
            case SADB_EXT_SA:
                  kdebug_sadb_sa(ext);
                  break;
            case SADB_EXT_LIFETIME_CURRENT:
            case SADB_EXT_LIFETIME_HARD:
            case SADB_EXT_LIFETIME_SOFT:
                  kdebug_sadb_lifetime(ext);
                  break;
            case SADB_EXT_ADDRESS_SRC:
            case SADB_EXT_ADDRESS_DST:
            case SADB_EXT_ADDRESS_PROXY:
                  kdebug_sadb_address(ext);
                  break;
            case SADB_EXT_KEY_AUTH:
            case SADB_EXT_KEY_ENCRYPT:
                  kdebug_sadb_key(ext);
                  break;
            case SADB_EXT_IDENTITY_SRC:
            case SADB_EXT_IDENTITY_DST:
                  kdebug_sadb_identity(ext);
                  break;
            case SADB_EXT_SENSITIVITY:
                  break;
            case SADB_EXT_PROPOSAL:
                  kdebug_sadb_prop(ext);
                  break;
            case SADB_EXT_SUPPORTED_AUTH:
            case SADB_EXT_SUPPORTED_ENCRYPT:
                  kdebug_sadb_supported(ext);
                  break;
            case SADB_EXT_SPIRANGE:
            case SADB_X_EXT_KMPRIVATE:
                  break;
            case SADB_X_EXT_POLICY:
                  kdebug_sadb_x_policy(ext);
                  break;
            case SADB_X_EXT_SA2:
                  kdebug_sadb_x_sa2(ext);
                  break;
#ifdef SADB_X_EXT_NAT_T_TYPE
            case SADB_X_EXT_NAT_T_TYPE:
                  kdebug_sadb_x_nat_t_type(ext);
                  break;
            case SADB_X_EXT_NAT_T_SPORT:
            case SADB_X_EXT_NAT_T_DPORT:
                  kdebug_sadb_x_nat_t_port(ext);
                  break;
            case SADB_X_EXT_NAT_T_OA:
                  kdebug_sadb_address(ext);
                  break;
#endif
            default:
                  printf("kdebug_sadb: invalid ext_type %u was passed.\n",
                      ext->sadb_ext_type);
                  return;
            }

            extlen = PFKEY_UNUNIT64(ext->sadb_ext_len);
            tlen -= extlen;
            ext = (struct sadb_ext *)((caddr_t)ext + extlen);
      }

      return;
}

static void
kdebug_sadb_prop(ext)
      struct sadb_ext *ext;
{
      struct sadb_prop *prop = (struct sadb_prop *)ext;
      struct sadb_comb *comb;
      int len;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_prop: NULL pointer was passed.\n");

      len = (PFKEY_UNUNIT64(prop->sadb_prop_len) - sizeof(*prop))
            / sizeof(*comb);
      comb = (struct sadb_comb *)(prop + 1);
      printf("sadb_prop{ replay=%u\n", prop->sadb_prop_replay);

      while (len--) {
            printf("sadb_comb{ auth=%u encrypt=%u "
                  "flags=0x%04x reserved=0x%08x\n",
                  comb->sadb_comb_auth, comb->sadb_comb_encrypt,
                  comb->sadb_comb_flags, comb->sadb_comb_reserved);

            printf("  auth_minbits=%u auth_maxbits=%u "
                  "encrypt_minbits=%u encrypt_maxbits=%u\n",
                  comb->sadb_comb_auth_minbits,
                  comb->sadb_comb_auth_maxbits,
                  comb->sadb_comb_encrypt_minbits,
                  comb->sadb_comb_encrypt_maxbits);

            printf("  soft_alloc=%u hard_alloc=%u "
                  "soft_bytes=%lu hard_bytes=%lu\n",
                  comb->sadb_comb_soft_allocations,
                  comb->sadb_comb_hard_allocations,
                  (unsigned long)comb->sadb_comb_soft_bytes,
                  (unsigned long)comb->sadb_comb_hard_bytes);

            printf("  soft_alloc=%lu hard_alloc=%lu "
                  "soft_bytes=%lu hard_bytes=%lu }\n",
                  (unsigned long)comb->sadb_comb_soft_addtime,
                  (unsigned long)comb->sadb_comb_hard_addtime,
                  (unsigned long)comb->sadb_comb_soft_usetime,
                  (unsigned long)comb->sadb_comb_hard_usetime);
            comb++;
      }
      printf("}\n");

      return;
}

static void
kdebug_sadb_identity(ext)
      struct sadb_ext *ext;
{
      struct sadb_ident *id = (struct sadb_ident *)ext;
      int len;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_identity: NULL pointer was passed.\n");

      len = PFKEY_UNUNIT64(id->sadb_ident_len) - sizeof(*id);
      printf("sadb_ident_%s{",
          id->sadb_ident_exttype == SADB_EXT_IDENTITY_SRC ? "src" : "dst");
      switch (id->sadb_ident_type) {
      default:
            printf(" type=%d id=%lu",
                  id->sadb_ident_type, (u_long)id->sadb_ident_id);
            if (len) {
#ifdef _KERNEL
                  ipsec_hexdump((caddr_t)(id + 1), len); /*XXX cast ?*/
#else
                  char *p, *ep;
                  printf("\n  str=\"");
                  p = (char *)(id + 1);
                  ep = p + len;
                  for (/*nothing*/; *p && p < ep; p++) {
                        if (isprint((int)*p))
                              printf("%c", *p & 0xff);
                        else
                              printf("\\%03o", *p & 0xff);
                  }
#endif
                  printf("\"");
            }
            break;
      }

      printf(" }\n");

      return;
}

static void
kdebug_sadb_supported(ext)
      struct sadb_ext *ext;
{
      struct sadb_supported *sup = (struct sadb_supported *)ext;
      struct sadb_alg *alg;
      int len;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_supported: NULL pointer was passed.\n");

      len = (PFKEY_UNUNIT64(sup->sadb_supported_len) - sizeof(*sup))
            / sizeof(*alg);
      alg = (struct sadb_alg *)(sup + 1);
      printf("sadb_sup{\n");
      while (len--) {
            printf("  { id=%d ivlen=%d min=%d max=%d }\n",
                  alg->sadb_alg_id, alg->sadb_alg_ivlen,
                  alg->sadb_alg_minbits, alg->sadb_alg_maxbits);
            alg++;
      }
      printf("}\n");

      return;
}

static void
kdebug_sadb_lifetime(ext)
      struct sadb_ext *ext;
{
      struct sadb_lifetime *lft = (struct sadb_lifetime *)ext;

      /* sanity check */
      if (ext == NULL)
            printf("kdebug_sadb_lifetime: NULL pointer was passed.\n");

      printf("sadb_lifetime{ alloc=%u, bytes=%u\n",
            lft->sadb_lifetime_allocations,
            (u_int32_t)lft->sadb_lifetime_bytes);
      printf("  addtime=%u, usetime=%u }\n",
            (u_int32_t)lft->sadb_lifetime_addtime,
            (u_int32_t)lft->sadb_lifetime_usetime);

      return;
}

static void
kdebug_sadb_sa(ext)
      struct sadb_ext *ext;
{
      struct sadb_sa *sa = (struct sadb_sa *)ext;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_sa: NULL pointer was passed.\n");

      printf("sadb_sa{ spi=%u replay=%u state=%u\n",
          (u_int32_t)ntohl(sa->sadb_sa_spi), sa->sadb_sa_replay,
          sa->sadb_sa_state);
      printf("  auth=%u encrypt=%u flags=0x%08x }\n",
          sa->sadb_sa_auth, sa->sadb_sa_encrypt, sa->sadb_sa_flags);

      return;
}

static void
kdebug_sadb_address(ext)
      struct sadb_ext *ext;
{
      struct sadb_address *addr = (struct sadb_address *)ext;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_address: NULL pointer was passed.\n");

      printf("sadb_address{ proto=%u prefixlen=%u reserved=0x%02x%02x }\n",
          addr->sadb_address_proto, addr->sadb_address_prefixlen,
          ((u_char *)&addr->sadb_address_reserved)[0],
          ((u_char *)&addr->sadb_address_reserved)[1]);

      kdebug_sockaddr((struct sockaddr *)((caddr_t)ext + sizeof(*addr)));

      return;
}

static void
kdebug_sadb_key(ext)
      struct sadb_ext *ext;
{
      struct sadb_key *key = (struct sadb_key *)ext;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_key: NULL pointer was passed.\n");

      printf("sadb_key{ bits=%u reserved=%u\n",
          key->sadb_key_bits, key->sadb_key_reserved);
      printf("  key=");

      /* sanity check 2 */
      if ((key->sadb_key_bits >> 3) >
            (PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key))) {
            printf("kdebug_sadb_key: key length mismatch, bit:%d len:%ld.\n",
                  key->sadb_key_bits >> 3,
                  (long)PFKEY_UNUNIT64(key->sadb_key_len) - sizeof(struct sadb_key));
      }

      ipsec_hexdump((caddr_t)key + sizeof(struct sadb_key),
                    key->sadb_key_bits >> 3);
      printf(" }\n");
      return;
}

static void
kdebug_sadb_x_sa2(ext)
      struct sadb_ext *ext;
{
      struct sadb_x_sa2 *sa2 = (struct sadb_x_sa2 *)ext;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_x_sa2: NULL pointer was passed.\n");

      printf("sadb_x_sa2{ mode=%u reqid=%u\n",
          sa2->sadb_x_sa2_mode, sa2->sadb_x_sa2_reqid);
      printf("  reserved1=%u reserved2=%u sequence=%u }\n",
          sa2->sadb_x_sa2_reserved1, sa2->sadb_x_sa2_reserved2,
          sa2->sadb_x_sa2_sequence);

      return;
}

void
kdebug_sadb_x_policy(ext)
      struct sadb_ext *ext;
{
      struct sadb_x_policy *xpl = (struct sadb_x_policy *)ext;
      struct sockaddr *addr;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_x_policy: NULL pointer was passed.\n");

#ifdef HAVE_PFKEY_POLICY_PRIORITY
      printf("sadb_x_policy{ type=%u dir=%u id=%x priority=%u }\n",
#else
      printf("sadb_x_policy{ type=%u dir=%u id=%x }\n",
#endif
            xpl->sadb_x_policy_type, xpl->sadb_x_policy_dir,
#ifdef HAVE_PFKEY_POLICY_PRIORITY
            xpl->sadb_x_policy_id, xpl->sadb_x_policy_priority);
#else
            xpl->sadb_x_policy_id);
#endif

      if (xpl->sadb_x_policy_type == IPSEC_POLICY_IPSEC) {
            int tlen;
            struct sadb_x_ipsecrequest *xisr;

            tlen = PFKEY_UNUNIT64(xpl->sadb_x_policy_len) - sizeof(*xpl);
            xisr = (struct sadb_x_ipsecrequest *)(xpl + 1);

            while (tlen > 0) {
                  printf(" { len=%u proto=%u mode=%u level=%u reqid=%u\n",
                        xisr->sadb_x_ipsecrequest_len,
                        xisr->sadb_x_ipsecrequest_proto,
                        xisr->sadb_x_ipsecrequest_mode,
                        xisr->sadb_x_ipsecrequest_level,
                        xisr->sadb_x_ipsecrequest_reqid);

                  if (xisr->sadb_x_ipsecrequest_len > sizeof(*xisr)) {
                        addr = (struct sockaddr *)(xisr + 1);
                        kdebug_sockaddr(addr);
                        addr = (struct sockaddr *)((caddr_t)addr
                                          + sysdep_sa_len(addr));
                        kdebug_sockaddr(addr);
                  }

                  printf(" }\n");

                  /* prevent infinite loop */
                  if (xisr->sadb_x_ipsecrequest_len <= 0) {
                        printf("kdebug_sadb_x_policy: wrong policy struct.\n");
                        return;
                  }
                  /* prevent overflow */
                  if (xisr->sadb_x_ipsecrequest_len > tlen) {
                        printf("invalid ipsec policy length\n");
                        return;
                  }

                  tlen -= xisr->sadb_x_ipsecrequest_len;

                  xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xisr
                                  + xisr->sadb_x_ipsecrequest_len);
            }

            if (tlen != 0)
                  panic("kdebug_sadb_x_policy: wrong policy struct.\n");
      }

      return;
}

#ifdef SADB_X_EXT_NAT_T_TYPE
static void
kdebug_sadb_x_nat_t_type(struct sadb_ext *ext)
{
      struct sadb_x_nat_t_type *ntt = (struct sadb_x_nat_t_type *)ext;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_x_nat_t_type: NULL pointer was passed.\n");

      printf("sadb_x_nat_t_type{ type=%u }\n", ntt->sadb_x_nat_t_type_type);

      return;
}

static void
kdebug_sadb_x_nat_t_port(struct sadb_ext *ext)
{
      struct sadb_x_nat_t_port *ntp = (struct sadb_x_nat_t_port *)ext;

      /* sanity check */
      if (ext == NULL)
            panic("kdebug_sadb_x_nat_t_port: NULL pointer was passed.\n");

      printf("sadb_x_nat_t_port{ port=%u }\n", ntohs(ntp->sadb_x_nat_t_port_port));

      return;
}
#endif

#ifdef _KERNEL
/* %%%: about SPD and SAD */
void
kdebug_secpolicy(sp)
      struct secpolicy *sp;
{
      /* sanity check */
      if (sp == NULL)
            panic("kdebug_secpolicy: NULL pointer was passed.\n");

      printf("secpolicy{ refcnt=%u state=%u policy=%u\n",
            sp->refcnt, sp->state, sp->policy);

      kdebug_secpolicyindex(&sp->spidx);

      switch (sp->policy) {
      case IPSEC_POLICY_DISCARD:
            printf("  type=discard }\n");
            break;
      case IPSEC_POLICY_NONE:
            printf("  type=none }\n");
            break;
      case IPSEC_POLICY_IPSEC:
          {
            struct ipsecrequest *isr;
            for (isr = sp->req; isr != NULL; isr = isr->next) {

                  printf("  level=%u\n", isr->level);
                  kdebug_secasindex(&isr->saidx);

                  if (isr->sav != NULL)
                        kdebug_secasv(isr->sav);
            }
            printf("  }\n");
          }
            break;
      case IPSEC_POLICY_BYPASS:
            printf("  type=bypass }\n");
            break;
      case IPSEC_POLICY_ENTRUST:
            printf("  type=entrust }\n");
            break;
      default:
            printf("kdebug_secpolicy: Invalid policy found. %d\n",
                  sp->policy);
            break;
      }

      return;
}

void
kdebug_secpolicyindex(spidx)
      struct secpolicyindex *spidx;
{
      /* sanity check */
      if (spidx == NULL)
            panic("kdebug_secpolicyindex: NULL pointer was passed.\n");

      printf("secpolicyindex{ dir=%u prefs=%u prefd=%u ul_proto=%u\n",
            spidx->dir, spidx->prefs, spidx->prefd, spidx->ul_proto);

      ipsec_hexdump((caddr_t)&spidx->src,
            sysdep_sa_len((struct sockaddr *)&spidx->src));
      printf("\n");
      ipsec_hexdump((caddr_t)&spidx->dst,
            sysdep_sa_len((struct sockaddr *)&spidx->dst));
      printf("}\n");

      return;
}

void
kdebug_secasindex(saidx)
      struct secasindex *saidx;
{
      /* sanity check */
      if (saidx == NULL)
            panic("kdebug_secpolicyindex: NULL pointer was passed.\n");

      printf("secasindex{ mode=%u proto=%u\n",
            saidx->mode, saidx->proto);

      ipsec_hexdump((caddr_t)&saidx->src,
            sysdep_sa_len((struct sockaddr *)&saidx->src));
      printf("\n");
      ipsec_hexdump((caddr_t)&saidx->dst,
            sysdep_sa_len((struct sockaddr *)&saidx->dst));
      printf("\n");

      return;
}

void
kdebug_secasv(sav)
      struct secasvar *sav;
{
      /* sanity check */
      if (sav == NULL)
            panic("kdebug_secasv: NULL pointer was passed.\n");

      printf("secas{");
      kdebug_secasindex(&sav->sah->saidx);

      printf("  refcnt=%u state=%u auth=%u enc=%u\n",
          sav->refcnt, sav->state, sav->alg_auth, sav->alg_enc);
      printf("  spi=%u flags=%u\n",
          (u_int32_t)ntohl(sav->spi), sav->flags);

      if (sav->key_auth != NULL)
            kdebug_sadb_key((struct sadb_ext *)sav->key_auth);
      if (sav->key_enc != NULL)
            kdebug_sadb_key((struct sadb_ext *)sav->key_enc);
      if (sav->iv != NULL) {
            printf("  iv=");
            ipsec_hexdump(sav->iv, sav->ivlen ? sav->ivlen : 8);
            printf("\n");
      }

      if (sav->replay != NULL)
            kdebug_secreplay(sav->replay);
      if (sav->lft_c != NULL)
            kdebug_sadb_lifetime((struct sadb_ext *)sav->lft_c);
      if (sav->lft_h != NULL)
            kdebug_sadb_lifetime((struct sadb_ext *)sav->lft_h);
      if (sav->lft_s != NULL)
            kdebug_sadb_lifetime((struct sadb_ext *)sav->lft_s);

#if notyet
      /* XXX: misc[123] ? */
#endif

      return;
}

static void
kdebug_secreplay(rpl)
      struct secreplay *rpl;
{
      int len, l;

      /* sanity check */
      if (rpl == NULL)
            panic("kdebug_secreplay: NULL pointer was passed.\n");

      printf(" secreplay{ count=%u wsize=%u seq=%u lastseq=%u",
          rpl->count, rpl->wsize, rpl->seq, rpl->lastseq);

      if (rpl->bitmap == NULL) {
            printf(" }\n");
            return;
      }

      printf("\n   bitmap { ");

      for (len = 0; len < rpl->wsize; len++) {
            for (l = 7; l >= 0; l--)
                  printf("%u", (((rpl->bitmap)[len] >> l) & 1) ? 1 : 0);
      }
      printf(" }\n");

      return;
}

void
kdebug_mbufhdr(m)
      struct mbuf *m;
{
      /* sanity check */
      if (m == NULL)
            return;

      printf("mbuf(%p){ m_next:%p m_nextpkt:%p m_data:%p "
             "m_len:%d m_type:0x%02x m_flags:0x%02x }\n",
            m, m->m_next, m->m_nextpkt, m->m_data,
            m->m_len, m->m_type, m->m_flags);

      if (m->m_flags & M_PKTHDR) {
            printf("  m_pkthdr{ len:%d rcvif:%p }\n",
                m->m_pkthdr.len, m->m_pkthdr.rcvif);
      }

#ifdef __FreeBSD__
      if (m->m_flags & M_EXT) {
            printf("  m_ext{ ext_buf:%p ext_free:%p "
                   "ext_size:%u ext_ref:%p }\n",
                  m->m_ext.ext_buf, m->m_ext.ext_free,
                  m->m_ext.ext_size, m->m_ext.ext_ref);
      }
#endif

      return;
}

void
kdebug_mbuf(m0)
      struct mbuf *m0;
{
      struct mbuf *m = m0;
      int i, j;

      for (j = 0; m; m = m->m_next) {
            kdebug_mbufhdr(m);
            printf("  m_data:\n");
            for (i = 0; i < m->m_len; i++) {
                  if (i && i % 32 == 0)
                        printf("\n");
                  if (i % 4 == 0)
                        printf(" ");
                  printf("%02x", mtod(m, u_char *)[i]);
                  j++;
            }
            printf("\n");
      }

      return;
}
#endif /* _KERNEL */

static void
kdebug_sockaddr(addr)
      struct sockaddr *addr;
{
      struct sockaddr_in *sin4;
#ifdef INET6
      struct sockaddr_in6 *sin6;
#endif

      /* sanity check */
      if (addr == NULL)
            panic("kdebug_sockaddr: NULL pointer was passed.\n");

      /* NOTE: We deal with port number as host byte order. */
      printf("sockaddr{ len=%u family=%u", sysdep_sa_len(addr), addr->sa_family);

      switch (addr->sa_family) {
      case AF_INET:
            sin4 = (struct sockaddr_in *)addr;
            printf(" port=%u\n", ntohs(sin4->sin_port));
            ipsec_hexdump((caddr_t)&sin4->sin_addr, sizeof(sin4->sin_addr));
            break;
#ifdef INET6
      case AF_INET6:
            sin6 = (struct sockaddr_in6 *)addr;
            printf(" port=%u\n", ntohs(sin6->sin6_port));
            printf("  flowinfo=0x%08x, scope_id=0x%08x\n",
                sin6->sin6_flowinfo, sin6->sin6_scope_id);
            ipsec_hexdump((caddr_t)&sin6->sin6_addr,
                sizeof(sin6->sin6_addr));
            break;
#endif
      }

      printf("  }\n");

      return;
}

void
ipsec_bindump(buf, len)
      caddr_t buf;
      int len;
{
      int i;

      for (i = 0; i < len; i++)
            printf("%c", (unsigned char)buf[i]);

      return;
}


void
ipsec_hexdump(buf, len)
      caddr_t buf;
      int len;
{
      int i;

      for (i = 0; i < len; i++) {
            if (i != 0 && i % 32 == 0) printf("\n");
            if (i % 4 == 0) printf(" ");
            printf("%02x", (unsigned char)buf[i]);
      }
#if 0
      if (i % 32 != 0) printf("\n");
#endif

      return;
}

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