1 files changed, 275 insertions, 0 deletions
diff --git a/ipsec-tools/src/racoon/rsalist.c b/ipsec-tools/src/racoon/rsalist.c
new file mode 100644
index 00000000..f152c825
--- /dev/null
+++ b/ipsec-tools/src/racoon/rsalist.c
@@ -0,0 +1,275 @@
+/*	$NetBSD: rsalist.c,v 1.6 2011/03/14 15:50:36 vanhu Exp $	*/
+
+/* Id: rsalist.c,v 1.3 2004/11/08 12:04:23 ludvigm Exp */
+
+/*
+ * Copyright (C) 2004 SuSE Linux AG, Nuernberg, Germany.
+ * Contributed by: Michal Ludvig <mludvig@suse.cz>, SUSE Labs
+ * 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 <stdio.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/queue.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include <openssl/bn.h>
+#include <openssl/rsa.h>
+
+#include "misc.h"
+#include "plog.h"
+#include "sockmisc.h"
+#include "rsalist.h"
+#include "genlist.h"
+#include "remoteconf.h"
+#include "crypto_openssl.h"
+
+#ifndef LIST_FIRST
+#define LIST_FIRST(head)        ((head)->lh_first)
+#endif
+
+#ifndef LIST_NEXT
+#define LIST_NEXT(elm, field)   ((elm)->field.le_next)
+#endif
+
+/* from prsa_tok.l */
+int prsa_parse_file(struct genlist *list, const char *fname, enum rsa_key_type type);
+
+int
+rsa_key_insert(struct genlist *list, struct netaddr *src,
+	       struct netaddr *dst, RSA *rsa)
+{
+	struct rsa_key *rsa_key;
+
+	rsa_key = calloc(sizeof(struct rsa_key), 1);
+	rsa_key->rsa = rsa;
+
+	if (src)
+		rsa_key->src = src;
+	else
+		rsa_key->src = calloc(sizeof(*rsa_key->src), 1);
+
+	if (dst)
+		rsa_key->dst = dst;
+	else
+		rsa_key->dst = calloc(sizeof(*rsa_key->dst), 1);
+
+	genlist_append(list, rsa_key);
+
+	return 0;
+}
+
+struct rsa_key *
+rsa_key_dup(struct rsa_key *key)
+{
+	struct rsa_key *new;
+
+	new = calloc(sizeof(struct rsa_key), 1);
+	if (new == NULL)
+		return NULL;
+
+	if (key->rsa) {
+		new->rsa = key->rsa->d != NULL ? RSAPrivateKey_dup(key->rsa) : RSAPublicKey_dup(key->rsa);
+		if (new->rsa == NULL)
+			goto dup_error;
+	}
+
+	if (key->src) {
+		new->src = malloc(sizeof(*new->src));
+		if (new->src == NULL)
+			goto dup_error;
+		memcpy(new->src, key->src, sizeof(*new->src));
+	}	
+	if (key->dst) {
+		new->dst = malloc(sizeof(*new->dst));
+		if (new->dst == NULL)
+			goto dup_error;
+		memcpy(new->dst, key->dst, sizeof(*new->dst));
+	}
+
+	return new;
+
+dup_error:
+	if (new->rsa != NULL)
+		RSA_free(new->rsa);
+	if (new->dst != NULL)
+		free(new->dst);
+	if (new->src != NULL)
+		free(new->src);
+
+	free(new);
+	return NULL;
+}
+
+void
+rsa_key_free(void *data)
+{
+	struct rsa_key *rsa_key;
+
+	
+	rsa_key = (struct rsa_key *)data;
+	if (rsa_key->src)
+		free(rsa_key->src);
+	if (rsa_key->dst)
+		free(rsa_key->dst);
+	if (rsa_key->rsa)
+		RSA_free(rsa_key->rsa);
+
+	free(rsa_key);
+}
+
+static void *
+rsa_key_dump_one(void *entry, void *arg)
+{
+	struct rsa_key *key = entry;
+
+	plog(LLV_DEBUG, LOCATION, NULL, "Entry %s\n",
+	     naddrwop2str_fromto("%s -> %s", key->src,
+				 key->dst));
+	if (loglevel > LLV_DEBUG)
+		RSA_print_fp(stdout, key->rsa, 4);
+
+	return NULL;
+}
+
+void
+rsa_key_dump(struct genlist *list)
+{
+	genlist_foreach(list, rsa_key_dump_one, NULL);
+}
+
+static void *
+rsa_list_count_one(void *entry, void *arg)
+{
+	if (arg)
+		(*(unsigned long *)arg)++;
+	return NULL;
+}
+
+unsigned long
+rsa_list_count(struct genlist *list)
+{
+	unsigned long count = 0;
+	genlist_foreach(list, rsa_list_count_one, &count);
+	return count;
+}
+
+struct lookup_result {
+	struct ph1handle *iph1;
+	int max_score;
+	struct genlist *winners;
+};
+	
+static void *
+rsa_lookup_key_one(void *entry, void *data)
+{
+	int local_score, remote_score;
+	struct lookup_result *req = data;
+	struct rsa_key *key = entry;
+
+	local_score = naddr_score(key->src, req->iph1->local);
+	remote_score = naddr_score(key->dst, req->iph1->remote);
+
+	plog(LLV_DEBUG, LOCATION, NULL, "Entry %s scored %d/%d\n",
+		naddrwop2str_fromto("%s -> %s", key->src, key->dst),
+		local_score, remote_score);
+
+	if (local_score >= 0 && remote_score >= 0) {
+		if (local_score + remote_score > req->max_score) {
+			req->max_score = local_score + remote_score;
+//			genlist_free(req->winners, NULL);
+		}
+
+		if (local_score + remote_score >= req->max_score) {
+			genlist_append(req->winners, key);
+		}
+	}
+
+	/* Always traverse the whole list */
+	return NULL;
+}
+
+struct genlist *
+rsa_lookup_keys(struct ph1handle *iph1, int my)
+{
+	struct genlist *list;
+	struct lookup_result r;
+
+	plog(LLV_DEBUG, LOCATION, NULL, "Looking up RSA key for %s\n",
+	     saddr2str_fromto("%s <-> %s", iph1->local, iph1->remote));
+
+	r.iph1 = iph1;
+	r.max_score = -1;
+	r.winners = genlist_init();
+
+	if (my)
+		list = iph1->rmconf->rsa_private;
+	else
+		list = iph1->rmconf->rsa_public;
+
+	genlist_foreach(list, rsa_lookup_key_one, &r);
+
+	if (loglevel >= LLV_DEBUG)
+		rsa_key_dump(r.winners);
+
+	return r.winners;
+}
+
+int
+rsa_parse_file(struct genlist *list, const char *fname, enum rsa_key_type type)
+{
+	int ret;
+	
+	plog(LLV_DEBUG, LOCATION, NULL, "Parsing %s\n", fname);
+	ret = prsa_parse_file(list, fname, type);
+	if (loglevel >= LLV_DEBUG)
+		rsa_key_dump(list);
+	return ret;
+}
+
+RSA *
+rsa_try_check_rsasign(vchar_t *source, vchar_t *sig, struct genlist *list)
+{
+	struct rsa_key *key;
+	struct genlist_entry *gp;
+
+	for(key = genlist_next(list, &gp); key; key = genlist_next(NULL, &gp)) {
+		plog(LLV_DEBUG, LOCATION, NULL, "Checking key %s...\n",
+			naddrwop2str_fromto("%s -> %s", key->src, key->dst));
+		if (eay_check_rsasign(source, sig, key->rsa) == 0) {
+			plog(LLV_DEBUG, LOCATION, NULL, " ... YEAH!\n");
+			return key->rsa;
+		}
+		plog(LLV_DEBUG, LOCATION, NULL, " ... nope.\n");
+	}
+	return NULL;
+}