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test-pfkey.c

/*    $KAME: test-pfkey.c,v 1.4 2000/06/07 00:29:14 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/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <net/route.h>
#include <net/pfkeyv2.h>
#include <netinet/in.h>
#include <netkey/keydb.h>
#include <netkey/key_var.h>
#include <netkey/key_debug.h>

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <errno.h>
#include <netdb.h>

u_char m_buf[BUFSIZ];
u_int m_len;
char *pname;

void Usage __P((void));
int sendkeymsg __P((void));
void key_setsadbmsg __P((u_int));
void key_setsadbsens __P((void));
void key_setsadbprop __P((void));
void key_setsadbid __P((u_int, caddr_t));
void key_setsadblft __P((u_int, u_int));
void key_setspirange __P((void));
void key_setsadbkey __P((u_int, caddr_t));
void key_setsadbsa __P((void));
void key_setsadbaddr __P((u_int, u_int, caddr_t));
void key_setsadbextbuf __P((caddr_t, int, caddr_t, int, caddr_t, int));

void
Usage()
{
      printf("Usage:\t%s number\n", pname);
      exit(0);
}

int
main(ac, av)
      int ac;
      char **av;
{
      pname = *av;

      if (ac == 1) Usage();

      key_setsadbmsg(atoi(*(av+1)));
      sendkeymsg();

      exit(0);
}

/* %%% */
int
sendkeymsg()
{
      u_char rbuf[1024 * 32]; /* XXX: Enough ? Should I do MSG_PEEK ? */
      int so, len;

      if ((so = socket(PF_KEY, SOCK_RAW, PF_KEY_V2)) < 0) {
            perror("socket(PF_KEY)");
            goto end;
      }
#if 0
    {
#include <sys/time.h>
      struct timeval tv;
      tv.tv_sec = 1;
      tv.tv_usec = 0;
      if (setsockopt(so, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
            perror("setsockopt");
            goto end;
      }
    }
#endif

      pfkey_sadump((struct sadb_msg *)m_buf);

      if ((len = send(so, m_buf, m_len, 0)) < 0) {
            perror("send");
            goto end;
      }

      if ((len = recv(so, rbuf, sizeof(rbuf), 0)) < 0) {
            perror("recv");
            goto end;
      }

      pfkey_sadump((struct sadb_msg *)rbuf);

end:
      (void)close(so);
      return(0);
}

void
key_setsadbmsg(type)
      u_int type;
{
      struct sadb_msg m_msg;

      memset(&m_msg, 0, sizeof(m_msg));
      m_msg.sadb_msg_version = PF_KEY_V2;
      m_msg.sadb_msg_type = type;
      m_msg.sadb_msg_errno = 0;
      m_msg.sadb_msg_satype = SADB_SATYPE_ESP;
#if 0
      m_msg.sadb_msg_reserved = 0;
#endif
      m_msg.sadb_msg_seq = 0;
      m_msg.sadb_msg_pid = getpid();

      m_len = sizeof(struct sadb_msg);
      memcpy(m_buf, &m_msg, m_len);

      switch (type) {
      case SADB_GETSPI:
            /*<base, address(SD), SPI range>*/
            key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "10.0.3.4");
            key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "127.0.0.1");
            key_setspirange();
            /*<base, SA(*), address(SD)>*/
            break;

      case SADB_ADD:
            /* <base, SA, (lifetime(HSC),) address(SD), (address(P),)
               key(AE), (identity(SD),) (sensitivity)> */
            key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
      case SADB_UPDATE:
            key_setsadbsa();
            key_setsadblft(SADB_EXT_LIFETIME_HARD, 10);
            key_setsadblft(SADB_EXT_LIFETIME_SOFT, 5);
            key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
            key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
            /* XXX key_setsadbkey(SADB_EXT_KEY_AUTH, "abcde"); */
            key_setsadbkey(SADB_EXT_KEY_AUTH, "1234567812345678");
            key_setsadbkey(SADB_EXT_KEY_ENCRYPT, "12345678");
            key_setsadbid(SADB_EXT_IDENTITY_SRC, "hoge1234@hoge.com");
            key_setsadbid(SADB_EXT_IDENTITY_DST, "hage5678@hage.net");
            key_setsadbsens();
            /* <base, SA, (lifetime(HSC),) address(SD), (address(P),)
              (identity(SD),) (sensitivity)> */
            break;

      case SADB_DELETE:
            /* <base, SA(*), address(SDP)> */
            key_setsadbsa();
            key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
            key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
            key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
            /* <base, SA(*), address(SDP)> */
            break;

      case SADB_GET:
            /* <base, SA(*), address(SDP)> */
            key_setsadbsa();
            key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
            key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
            key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
            /* <base, SA, (lifetime(HSC),) address(SD), (address(P),)
               key(AE), (identity(SD),) (sensitivity)> */
            break;

      case SADB_ACQUIRE:
            /* <base, address(SD), (address(P),) (identity(SD),)
               (sensitivity,) proposal> */
            key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
            key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
            key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
            key_setsadbid(SADB_EXT_IDENTITY_SRC, "hoge1234@hoge.com");
            key_setsadbid(SADB_EXT_IDENTITY_DST, "hage5678@hage.net");
            key_setsadbsens();
            key_setsadbprop();
            /* <base, address(SD), (address(P),) (identity(SD),)
               (sensitivity,) proposal> */
            break;

      case SADB_REGISTER:
            /* <base> */
            /* <base, supported> */
            break;

      case SADB_EXPIRE:
      case SADB_FLUSH:
            break;

      case SADB_DUMP:
            break;

      case SADB_X_PROMISC:
            /* <base> */
            /* <base, base(, others)> */
            break;

      case SADB_X_PCHANGE:
            break;

      /* for SPD management */
      case SADB_X_SPDFLUSH:
      case SADB_X_SPDDUMP:
            break;

      case SADB_X_SPDADD:
#if 0
          {
            struct sadb_x_policy m_policy;

            m_policy.sadb_x_policy_len = PFKEY_UNIT64(sizeof(m_policy));
            m_policy.sadb_x_policy_exttype = SADB_X_EXT_POLICY;
            m_policy.sadb_x_policy_type = SADB_X_PL_IPSEC;
            m_policy.sadb_x_policy_esp_trans = 1;
            m_policy.sadb_x_policy_ah_trans = 2;
            m_policy.sadb_x_policy_esp_network = 3;
            m_policy.sadb_x_policy_ah_network = 4;
            m_policy.sadb_x_policy_reserved = 0;

            memcpy(m_buf + m_len, &m_policy, sizeof(struct sadb_x_policy));
            m_len += sizeof(struct sadb_x_policy);
          }
#endif

      case SADB_X_SPDDELETE:
            key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
            key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
            break;
      }

      ((struct sadb_msg *)m_buf)->sadb_msg_len = PFKEY_UNIT64(m_len);

      return;
}

void
key_setsadbsens()
{
      struct sadb_sens m_sens;
      u_char buf[64];
      u_int s, i, slen, ilen, len;

      /* make sens & integ */
      s = htonl(0x01234567);
      i = htonl(0x89abcdef);
      slen = sizeof(s);
      ilen = sizeof(i);
      memcpy(buf, &s, slen);
      memcpy(buf + slen, &i, ilen);

      len = sizeof(m_sens) + PFKEY_ALIGN8(slen) + PFKEY_ALIGN8(ilen);
      m_sens.sadb_sens_len = PFKEY_UNIT64(len);
      m_sens.sadb_sens_exttype = SADB_EXT_SENSITIVITY;
      m_sens.sadb_sens_dpd = 1;
      m_sens.sadb_sens_sens_level = 2;
      m_sens.sadb_sens_sens_len = PFKEY_ALIGN8(slen);
      m_sens.sadb_sens_integ_level = 3;
      m_sens.sadb_sens_integ_len = PFKEY_ALIGN8(ilen);
      m_sens.sadb_sens_reserved = 0;

      key_setsadbextbuf(m_buf, m_len,
                  (caddr_t)&m_sens, sizeof(struct sadb_sens),
                  buf, slen + ilen);
      m_len += len;

      return;
}

void
key_setsadbprop()
{
      struct sadb_prop m_prop;
      struct sadb_comb *m_comb;
      u_char buf[256];
      u_int len = sizeof(m_prop) + sizeof(m_comb) * 2;

      /* make prop & comb */
      m_prop.sadb_prop_len = PFKEY_UNIT64(len);
      m_prop.sadb_prop_exttype = SADB_EXT_PROPOSAL;
      m_prop.sadb_prop_replay = 0;
      m_prop.sadb_prop_reserved[0] = 0;
      m_prop.sadb_prop_reserved[1] = 0;
      m_prop.sadb_prop_reserved[2] = 0;

      /* the 1st is ESP DES-CBC HMAC-MD5 */
      m_comb = (struct sadb_comb *)buf;
      m_comb->sadb_comb_auth = SADB_AALG_MD5HMAC;
      m_comb->sadb_comb_encrypt = SADB_EALG_DESCBC;
      m_comb->sadb_comb_flags = 0;
      m_comb->sadb_comb_auth_minbits = 8;
      m_comb->sadb_comb_auth_maxbits = 96;
      m_comb->sadb_comb_encrypt_minbits = 64;
      m_comb->sadb_comb_encrypt_maxbits = 64;
      m_comb->sadb_comb_reserved = 0;
      m_comb->sadb_comb_soft_allocations = 0;
      m_comb->sadb_comb_hard_allocations = 0;
      m_comb->sadb_comb_soft_bytes = 0;
      m_comb->sadb_comb_hard_bytes = 0;
      m_comb->sadb_comb_soft_addtime = 0;
      m_comb->sadb_comb_hard_addtime = 0;
      m_comb->sadb_comb_soft_usetime = 0;
      m_comb->sadb_comb_hard_usetime = 0;

      /* the 2st is ESP 3DES-CBC and AH HMAC-SHA1 */
      m_comb = (struct sadb_comb *)(buf + sizeof(*m_comb));
      m_comb->sadb_comb_auth = SADB_AALG_SHA1HMAC;
      m_comb->sadb_comb_encrypt = SADB_EALG_3DESCBC;
      m_comb->sadb_comb_flags = 0;
      m_comb->sadb_comb_auth_minbits = 8;
      m_comb->sadb_comb_auth_maxbits = 96;
      m_comb->sadb_comb_encrypt_minbits = 64;
      m_comb->sadb_comb_encrypt_maxbits = 64;
      m_comb->sadb_comb_reserved = 0;
      m_comb->sadb_comb_soft_allocations = 0;
      m_comb->sadb_comb_hard_allocations = 0;
      m_comb->sadb_comb_soft_bytes = 0;
      m_comb->sadb_comb_hard_bytes = 0;
      m_comb->sadb_comb_soft_addtime = 0;
      m_comb->sadb_comb_hard_addtime = 0;
      m_comb->sadb_comb_soft_usetime = 0;
      m_comb->sadb_comb_hard_usetime = 0;

      key_setsadbextbuf(m_buf, m_len,
                  (caddr_t)&m_prop, sizeof(struct sadb_prop),
                  buf, sizeof(*m_comb) * 2);
      m_len += len;

      return;
}

void
key_setsadbid(ext, str)
      u_int ext;
      caddr_t str;
{
      struct sadb_ident m_id;
      u_int idlen = strlen(str), len;

      len = sizeof(m_id) + PFKEY_ALIGN8(idlen);
      m_id.sadb_ident_len = PFKEY_UNIT64(len);
      m_id.sadb_ident_exttype = ext;
      m_id.sadb_ident_type = SADB_IDENTTYPE_USERFQDN;
      m_id.sadb_ident_reserved = 0;
      m_id.sadb_ident_id = getpid();

      key_setsadbextbuf(m_buf, m_len,
                  (caddr_t)&m_id, sizeof(struct sadb_ident),
                  str, idlen);
      m_len += len;

      return;
}

void
key_setsadblft(ext, time)
      u_int ext, time;
{
      struct sadb_lifetime m_lft;

      m_lft.sadb_lifetime_len = PFKEY_UNIT64(sizeof(m_lft));
      m_lft.sadb_lifetime_exttype = ext;
      m_lft.sadb_lifetime_allocations = 0x2;
      m_lft.sadb_lifetime_bytes = 0x1000;
      m_lft.sadb_lifetime_addtime = time;
      m_lft.sadb_lifetime_usetime = 0x0020;

      memcpy(m_buf + m_len, &m_lft, sizeof(struct sadb_lifetime));
      m_len += sizeof(struct sadb_lifetime);

      return;
}

void
key_setspirange()
{
      struct sadb_spirange m_spi;

      m_spi.sadb_spirange_len = PFKEY_UNIT64(sizeof(m_spi));
      m_spi.sadb_spirange_exttype = SADB_EXT_SPIRANGE;
      m_spi.sadb_spirange_min = 0x00001000;
      m_spi.sadb_spirange_max = 0x00002000;
      m_spi.sadb_spirange_reserved = 0;

      memcpy(m_buf + m_len, &m_spi, sizeof(struct sadb_spirange));
      m_len += sizeof(struct sadb_spirange);

      return;
}

void
key_setsadbkey(ext, str)
      u_int ext;
      caddr_t str;
{
      struct sadb_key m_key;
      u_int keylen = strlen(str);
      u_int len;

      len = sizeof(struct sadb_key) + PFKEY_ALIGN8(keylen);
      m_key.sadb_key_len = PFKEY_UNIT64(len);
      m_key.sadb_key_exttype = ext;
      m_key.sadb_key_bits = keylen * 8;
      m_key.sadb_key_reserved = 0;

      key_setsadbextbuf(m_buf, m_len,
                  (caddr_t)&m_key, sizeof(struct sadb_key),
                  str, keylen);
      m_len += len;

      return;
}

void
key_setsadbsa()
{
      struct sadb_sa m_sa;

      m_sa.sadb_sa_len = PFKEY_UNIT64(sizeof(struct sadb_sa));
      m_sa.sadb_sa_exttype = SADB_EXT_SA;
      m_sa.sadb_sa_spi = htonl(0x12345678);
      m_sa.sadb_sa_replay = 4;
      m_sa.sadb_sa_state = 0;
      m_sa.sadb_sa_auth = SADB_AALG_MD5HMAC;
      m_sa.sadb_sa_encrypt = SADB_EALG_DESCBC;
      m_sa.sadb_sa_flags = 0;

      memcpy(m_buf + m_len, &m_sa, sizeof(struct sadb_sa));
      m_len += sizeof(struct sadb_sa);

      return;
}

void
key_setsadbaddr(ext, af, str)
      u_int ext, af;
      caddr_t str;
{
      struct sadb_address m_addr;
      u_int len;
      struct addrinfo hints, *res;
      const char *serv;
      int plen;

      switch (af) {
      case AF_INET:
            plen = sizeof(struct in_addr) << 3;
            break;
      case AF_INET6:
            plen = sizeof(struct in6_addr) << 3;
            break;
      default:
            /* XXX bark */
            exit(1);
      }

      /* make sockaddr buffer */
      memset(&hints, 0, sizeof(hints));
      hints.ai_family = af;
      hints.ai_socktype = SOCK_DGRAM;     /*dummy*/
      hints.ai_flags = AI_NUMERICHOST;
      serv = (ext == SADB_EXT_ADDRESS_PROXY ? "0" : "4660");      /*0x1234*/
      if (getaddrinfo(str, serv, &hints, &res) != 0 || res->ai_next) {
            /* XXX bark */
            exit(1);
      }
      
      len = sizeof(struct sadb_address) + PFKEY_ALIGN8(res->ai_addrlen);
      m_addr.sadb_address_len = PFKEY_UNIT64(len);
      m_addr.sadb_address_exttype = ext;
      m_addr.sadb_address_proto =
            (ext == SADB_EXT_ADDRESS_PROXY ? 0 : IPPROTO_TCP);
      m_addr.sadb_address_prefixlen = plen;
      m_addr.sadb_address_reserved = 0;

      key_setsadbextbuf(m_buf, m_len,
                  (caddr_t)&m_addr, sizeof(struct sadb_address),
                  (caddr_t)res->ai_addr, res->ai_addrlen);
      m_len += len;

      freeaddrinfo(res);

      return;
}

void
key_setsadbextbuf(dst, off, ebuf, elen, vbuf, vlen)
      caddr_t dst, ebuf, vbuf;
      int off, elen, vlen;
{
      memset(dst + off, 0, elen + vlen);
      memcpy(dst + off, (caddr_t)ebuf, elen);
      memcpy(dst + off + elen, vbuf, vlen);

      return;
}


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