--- /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;
+}
+
projects / bcm963xx.git / blobdiff