+++ /dev/null
-/* $Id: remoteconf.c,v 1.24 2004/12/01 10:59:41 vanhu 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.
- */
-
-#include "config.h"
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/queue.h>
-
-#include <netinet/in.h>
-
-#ifndef HAVE_NETINET6_IPSEC
-#include <netinet/ipsec.h>
-#else
-#include <netinet6/ipsec.h>
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include "var.h"
-#include "misc.h"
-#include "vmbuf.h"
-#include "plog.h"
-#include "sockmisc.h"
-#include "genlist.h"
-#include "debug.h"
-
-#include "isakmp_var.h"
-#include "isakmp.h"
-#include "ipsec_doi.h"
-#include "oakley.h"
-#include "remoteconf.h"
-#include "localconf.h"
-#include "grabmyaddr.h"
-#include "proposal.h"
-#include "vendorid.h"
-#include "gcmalloc.h"
-#include "strnames.h"
-#include "algorithm.h"
-#include "nattraversal.h"
-#include "genlist.h"
-
-static TAILQ_HEAD(_rmtree, remoteconf) rmtree;
-
-/*
- * Script hook names
- */
-char *script_names[SCRIPT_MAX + 1] = { "phase1_up", "phase1_down" };
-
-/*%%%*/
-/*
- * search remote configuration.
- * don't use port number to search if its value is either IPSEC_PORT_ANY.
- * If matching anonymous entry, then new entry is copied from anonymous entry.
- * If no anonymous entry found, then return NULL.
- * OUT: NULL: NG
- * Other: remote configuration entry.
- */
-struct remoteconf *
-getrmconf_strict(remote, allow_anon)
- struct sockaddr *remote;
- int allow_anon;
-{
- struct remoteconf *p;
- struct remoteconf *anon = NULL;
- int withport;
- char buf[NI_MAXHOST + NI_MAXSERV + 10];
- char addr[NI_MAXHOST], port[NI_MAXSERV];
-
- withport = 0;
-
- switch (remote->sa_family) {
- case AF_INET:
- if (((struct sockaddr_in *)remote)->sin_port != IPSEC_PORT_ANY)
- withport = 1;
- break;
-#ifdef INET6
- case AF_INET6:
- if (((struct sockaddr_in6 *)remote)->sin6_port != IPSEC_PORT_ANY)
- withport = 1;
- break;
-#endif
- case AF_UNSPEC:
- break;
-
- default:
- plog(LLV_ERROR, LOCATION, NULL,
- "invalid family: %d\n", remote->sa_family);
- exit(1);
- }
-
- if (remote->sa_family == AF_UNSPEC)
- snprintf (buf, sizeof(buf), "%s", "anonymous");
- else {
- GETNAMEINFO(remote, addr, port);
- snprintf(buf, sizeof(buf), "%s%s%s%s", addr,
- withport ? "[" : "",
- withport ? port : "",
- withport ? "]" : "");
- }
-
- TAILQ_FOREACH(p, &rmtree, chain) {
- if ((remote->sa_family == AF_UNSPEC
- && remote->sa_family == p->remote->sa_family)
- || (!withport && cmpsaddrwop(remote, p->remote) == 0)
- || (withport && cmpsaddrstrict(remote, p->remote) == 0)) {
- plog(LLV_DEBUG, LOCATION, NULL,
- "configuration found for %s.\n", buf);
- return p;
- }
-
- /* save the pointer to the anonymous configuration */
- if (p->remote->sa_family == AF_UNSPEC)
- anon = p;
- }
-
- if (allow_anon && anon != NULL) {
- plog(LLV_DEBUG, LOCATION, NULL,
- "anonymous configuration selected for %s.\n", buf);
- return anon;
- }
-
- plog(LLV_DEBUG, LOCATION, NULL,
- "no remote configuration found.\n");
-
- return NULL;
-}
-
-struct remoteconf *
-getrmconf(remote)
- struct sockaddr *remote;
-{
- return getrmconf_strict(remote, 1);
-}
-
-struct remoteconf *
-newrmconf()
-{
- struct remoteconf *new;
-
- new = racoon_calloc(1, sizeof(*new));
- if (new == NULL)
- return NULL;
-
- new->proposal = NULL;
-
- /* set default */
- new->doitype = IPSEC_DOI;
- new->sittype = IPSECDOI_SIT_IDENTITY_ONLY;
- new->idvtype = IDTYPE_UNDEFINED;
- new->idvl_p = genlist_init();
- new->nonce_size = DEFAULT_NONCE_SIZE;
- new->passive = FALSE;
- new->ike_frag = FALSE;
- new->ini_contact = TRUE;
- new->mode_cfg = FALSE;
- new->pcheck_level = PROP_CHECK_STRICT;
- new->verify_identifier = FALSE;
- new->verify_cert = TRUE;
- new->getcert_method = ISAKMP_GETCERT_PAYLOAD;
- new->getcacert_method = ISAKMP_GETCERT_LOCALFILE;
- new->cacerttype = ISAKMP_CERT_X509SIGN;
- new->cacertfile = NULL;
- new->send_cert = TRUE;
- new->send_cr = TRUE;
- new->support_proxy = FALSE;
- bzero(&new->script[0], sizeof(char *) * (SCRIPT_MAX + 1));
- new->gen_policy = FALSE;
- new->retry_counter = lcconf->retry_counter;
- new->retry_interval = lcconf->retry_interval;
- new->nat_traversal = FALSE;
- new->rsa_private = genlist_init();
- new->rsa_public = genlist_init();
- new->idv = NULL;
- new->key = NULL;
-
- new->dpd = TRUE; /* Enable DPD support by default */
- new->dpd_interval = 0; /* Disable DPD checks by default */
- new->dpd_retry = 5;
- new->dpd_maxfails = 5;
-
- return new;
-}
-
-struct remoteconf *
-copyrmconf(remote)
- struct sockaddr *remote;
-{
- struct remoteconf *new, *old;
-
- old = getrmconf_strict (remote, 0);
- if (old == NULL) {
- plog (LLV_ERROR, LOCATION, NULL,
- "Remote configuration for '%s' not found!\n",
- saddr2str (remote));
- return NULL;
- }
-
- new = duprmconf (old);
-
- return new;
-}
-
-void *
-dupidvl(entry, arg)
- void *entry;
- void *arg;
-{
- struct idspec *id;
- struct idspec *old = (struct idspec *) entry;
- id = newidspec();
- if (!id) return (void *) -1;
-
- if (set_identifier(&id->id, old->idtype, old->id) != 0)
- return (void *) -1;
-
- id->idtype = old->idtype;
-
- genlist_append(arg, id);
- return NULL;
-}
-
-struct remoteconf *
-duprmconf (rmconf)
- struct remoteconf *rmconf;
-{
- struct remoteconf *new;
-
- new = racoon_calloc(1, sizeof(*new));
- if (new == NULL)
- return NULL;
- memcpy (new, rmconf, sizeof (*new));
- // FIXME: We should duplicate the proposal as well.
- // This is now handled in the cfparse.y
- // new->proposal = ...;
-
- /* duplicate dynamic structures */
- if (new->etypes)
- new->etypes=dupetypes(new->etypes);
- new->idvl_p = genlist_init();
- genlist_foreach(rmconf->idvl_p, dupidvl, new->idvl_p);
-
- return new;
-}
-
-static void
-idspec_free(void *data)
-{
- vfree (((struct idspec *)data)->id);
- free (data);
-}
-
-void
-delrmconf(rmconf)
- struct remoteconf *rmconf;
-{
- if (rmconf->etypes)
- deletypes(rmconf->etypes);
- if (rmconf->idvl_p)
- genlist_free(rmconf->idvl_p, idspec_free);
- if (rmconf->dhgrp)
- oakley_dhgrp_free(rmconf->dhgrp);
- if (rmconf->proposal)
- delisakmpsa(rmconf->proposal);
- racoon_free(rmconf);
-}
-
-void
-delisakmpsa(sa)
- struct isakmpsa *sa;
-{
- if (sa->dhgrp)
- oakley_dhgrp_free(sa->dhgrp);
- if (sa->next)
- delisakmpsa(sa->next);
-#ifdef HAVE_GSSAPI
- if (sa->gssid)
- vfree(sa->gssid);
-#endif
- racoon_free(sa);
-}
-
-struct etypes *
-dupetypes(orig)
- struct etypes *orig;
-{
- struct etypes *new;
-
- if (!orig)
- return NULL;
-
- new = racoon_malloc(sizeof(struct etypes));
- if (new == NULL)
- return NULL;
-
- new->type = orig->type;
- new->next = NULL;
-
- if (orig->next)
- new->next=dupetypes(orig->next);
-
- return new;
-}
-
-void
-deletypes(e)
- struct etypes *e;
-{
- if (e->next)
- deletypes(e->next);
- racoon_free(e);
-}
-
-/*
- * insert into head of list.
- */
-void
-insrmconf(new)
- struct remoteconf *new;
-{
- TAILQ_INSERT_HEAD(&rmtree, new, chain);
-}
-
-void
-remrmconf(rmconf)
- struct remoteconf *rmconf;
-{
- TAILQ_REMOVE(&rmtree, rmconf, chain);
-}
-
-void
-flushrmconf()
-{
- struct remoteconf *p, *next;
-
- for (p = TAILQ_FIRST(&rmtree); p; p = next) {
- next = TAILQ_NEXT(p, chain);
- remrmconf(p);
- delrmconf(p);
- }
-}
-
-void
-initrmconf()
-{
- TAILQ_INIT(&rmtree);
-}
-
-/* check exchange type to be acceptable */
-struct etypes *
-check_etypeok(rmconf, etype)
- struct remoteconf *rmconf;
- u_int8_t etype;
-{
- struct etypes *e;
-
- for (e = rmconf->etypes; e != NULL; e = e->next) {
- if (e->type == etype)
- break;
- }
-
- return e;
-}
-
-/*%%%*/
-struct isakmpsa *
-newisakmpsa()
-{
- struct isakmpsa *new;
-
- new = racoon_calloc(1, sizeof(*new));
- if (new == NULL)
- return NULL;
-
- /*
- * Just for sanity, make sure this is initialized. This is
- * filled in for real when the ISAKMP proposal is configured.
- */
- new->vendorid = VENDORID_UNKNOWN;
-
- new->next = NULL;
- new->rmconf = NULL;
-#ifdef HAVE_GSSAPI
- new->gssid = NULL;
-#endif
-
- return new;
-}
-
-/*
- * insert into tail of list.
- */
-void
-insisakmpsa(new, rmconf)
- struct isakmpsa *new;
- struct remoteconf *rmconf;
-{
- struct isakmpsa *p;
-
- new->rmconf = rmconf;
-
- if (rmconf->proposal == NULL) {
- rmconf->proposal = new;
- return;
- }
-
- for (p = rmconf->proposal; p->next != NULL; p = p->next)
- ;
- p->next = new;
-
- return;
-}
-
-struct remoteconf *
-foreachrmconf(rmconf_func_t rmconf_func, void *data)
-{
- struct remoteconf *p, *ret = NULL;
-
- TAILQ_FOREACH_REVERSE(p, &rmtree, _rmtree, chain) {
- ret = (*rmconf_func)(p, data);
- if (ret)
- break;
- }
-
- return ret;
-}
-
-static void *
-dump_peers_identifiers (void *entry, void *arg)
-{
- struct idspec *id = (struct idspec*) entry;
- char buf[1024], *pbuf;
- pbuf = buf;
- pbuf += sprintf (pbuf, "\tpeers_identifier %s",
- s_idtype (id->idtype));
- if (id->id)
- pbuf += sprintf (pbuf, " \"%s\"", id->id->v);
- plog(LLV_INFO, LOCATION, NULL, "%s;\n", buf);
- return NULL;
-}
-
-static struct remoteconf *
-dump_rmconf_single (struct remoteconf *p, void *data)
-{
- struct etypes *etype = p->etypes;
- struct isakmpsa *prop = p->proposal;
- char buf[1024], *pbuf;
-
- pbuf = buf;
- pbuf += sprintf(pbuf, "remote %s", saddr2str(p->remote));
- if (p->inherited_from)
- pbuf += sprintf(pbuf, " inherit %s",
- saddr2str(p->inherited_from->remote));
- plog(LLV_INFO, LOCATION, NULL, "%s {\n", buf);
- pbuf = buf;
- pbuf += sprintf(pbuf, "\texchange_type ");
- while (etype) {
- pbuf += sprintf (pbuf, "%s%s", s_etype(etype->type),
- etype->next != NULL ? ", " : ";\n");
- etype = etype->next;
- }
- plog(LLV_INFO, LOCATION, NULL, "%s", buf);
- plog(LLV_INFO, LOCATION, NULL, "\tdoi %s;\n", s_doi(p->doitype));
- pbuf = buf;
- pbuf += sprintf(pbuf, "\tmy_identifier %s", s_idtype (p->idvtype));
- if (p->idvtype == IDTYPE_ASN1DN) {
- plog(LLV_INFO, LOCATION, NULL, "%s;\n", buf);
- plog(LLV_INFO, LOCATION, NULL, "\tcertificate_type %s \"%s\" \"%s\";\n",
- p->certtype == ISAKMP_CERT_X509SIGN ? "x509" : "*UNKNOWN*",
- p->mycertfile, p->myprivfile);
- switch (p->getcert_method) {
- case 0:
- break;
- case ISAKMP_GETCERT_PAYLOAD:
- plog(LLV_INFO, LOCATION, NULL, "\t/* peers certificate from payload */\n");
- break;
- case ISAKMP_GETCERT_LOCALFILE:
- plog(LLV_INFO, LOCATION, NULL, "\tpeers_certfile \"%s\";\n", p->peerscertfile);
- break;
- case ISAKMP_GETCERT_DNS:
- plog(LLV_INFO, LOCATION, NULL, "\tpeer_certfile dnssec;\n");
- break;
- default:
- plog(LLV_INFO, LOCATION, NULL, "\tpeers_certfile *UNKNOWN* (%d)\n", p->getcert_method);
- }
- }
- else {
- if (p->idv)
- pbuf += sprintf (pbuf, " \"%s\"", p->idv->v);
- plog(LLV_INFO, LOCATION, NULL, "%s;\n", buf);
- genlist_foreach(p->idvl_p, &dump_peers_identifiers, NULL);
- }
-
- plog(LLV_INFO, LOCATION, NULL, "\tsend_cert %s;\n",
- s_switch (p->send_cert));
- plog(LLV_INFO, LOCATION, NULL, "\tsend_cr %s;\n",
- s_switch (p->send_cr));
- plog(LLV_INFO, LOCATION, NULL, "\tverify_cert %s;\n",
- s_switch (p->verify_cert));
- plog(LLV_INFO, LOCATION, NULL, "\tverify_identifier %s;\n",
- s_switch (p->verify_identifier));
- plog(LLV_INFO, LOCATION, NULL, "\tnat_traversal %s;\n",
- p->nat_traversal == NATT_FORCE ?
- "force" : s_switch (p->nat_traversal));
- plog(LLV_INFO, LOCATION, NULL, "\tnonce_size %d;\n",
- p->nonce_size);
- plog(LLV_INFO, LOCATION, NULL, "\tpassive %s;\n",
- s_switch (p->passive));
- plog(LLV_INFO, LOCATION, NULL, "\tike_frag %s;\n",
- s_switch (p->ike_frag));
- plog(LLV_INFO, LOCATION, NULL, "\tinitial_contact %s;\n",
- s_switch (p->ini_contact));
- plog(LLV_INFO, LOCATION, NULL, "\tgenerate_policy %s;\n",
- s_switch (p->gen_policy));
- plog(LLV_INFO, LOCATION, NULL, "\tsupport_proxy %s;\n",
- s_switch (p->support_proxy));
-
- while (prop) {
- plog(LLV_INFO, LOCATION, NULL, "\n");
- plog(LLV_INFO, LOCATION, NULL,
- "\t/* prop_no=%d, trns_no=%d, rmconf=%s */\n",
- prop->prop_no, prop->trns_no,
- saddr2str(prop->rmconf->remote));
- plog(LLV_INFO, LOCATION, NULL, "\tproposal {\n");
- plog(LLV_INFO, LOCATION, NULL, "\t\tlifetime time %lu sec;\n",
- (long)prop->lifetime);
- plog(LLV_INFO, LOCATION, NULL, "\t\tlifetime bytes %zd;\n",
- prop->lifebyte);
- plog(LLV_INFO, LOCATION, NULL, "\t\tdh_group %s;\n",
- alg_oakley_dhdef_name(prop->dh_group));
- plog(LLV_INFO, LOCATION, NULL, "\t\tencryption_algorithm %s;\n",
- alg_oakley_encdef_name(prop->enctype));
- plog(LLV_INFO, LOCATION, NULL, "\t\thash_algorithm %s;\n",
- alg_oakley_hashdef_name(prop->hashtype));
- plog(LLV_INFO, LOCATION, NULL, "\t\tauthentication_method %s;\n",
- alg_oakley_authdef_name(prop->authmethod));
- plog(LLV_INFO, LOCATION, NULL, "\t}\n");
- prop = prop->next;
- }
- plog(LLV_INFO, LOCATION, NULL, "}\n");
- plog(LLV_INFO, LOCATION, NULL, "\n");
-
- return NULL;
-}
-
-void
-dumprmconf()
-{
- foreachrmconf (dump_rmconf_single, NULL);
-}
-
-struct idspec *
-newidspec()
-{
- struct idspec *new;
-
- new = racoon_calloc(1, sizeof(*new));
- if (new == NULL)
- return NULL;
- new->idtype = IDTYPE_ADDRESS;
-
- return new;
-}
-
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