From: jsing <jsing@openbsd.org>
Date: Sun, 13 Jul 2014 16:03:54 +0000 (+0000)
Subject: Add a regress test for the ASN1 handling of SSL session tickets.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=ca994c7d8a4314611edfd881a9a6f90861409326;p=openbsd

Add a regress test for the ASN1 handling of SSL session tickets.
---

diff --git a/regress/lib/libssl/Makefile b/regress/lib/libssl/Makefile
index bbb93fee50b..00bc860d8e6 100644
--- a/regress/lib/libssl/Makefile
+++ b/regress/lib/libssl/Makefile
@@ -1,6 +1,7 @@
-#	$OpenBSD: Makefile,v 1.18 2014/05/24 14:56:32 jsing Exp $
+#	$OpenBSD: Makefile,v 1.19 2014/07/13 16:03:54 jsing Exp $
 
 SUBDIR= \
+	asn1 \
 	ssl
 
 install:
diff --git a/regress/lib/libssl/asn1/Makefile b/regress/lib/libssl/asn1/Makefile
new file mode 100644
index 00000000000..f4a57933e2e
--- /dev/null
+++ b/regress/lib/libssl/asn1/Makefile
@@ -0,0 +1,10 @@
+#	$OpenBSD: Makefile,v 1.1 2014/07/13 16:03:54 jsing Exp $
+
+PROG=	asn1test
+LDADD=	-lcrypto -lssl
+DPADD=	${LIBCRYPTO} ${LIBSSL}
+
+WARNINGS=	Yes
+CFLAGS+=	-DLIBRESSL_INTERNAL -Werror
+
+.include <bsd.regress.mk>
diff --git a/regress/lib/libssl/asn1/asn1test.c b/regress/lib/libssl/asn1/asn1test.c
new file mode 100644
index 00000000000..135c6ee04a8
--- /dev/null
+++ b/regress/lib/libssl/asn1/asn1test.c
@@ -0,0 +1,377 @@
+/*	$OpenBSD: asn1test.c,v 1.1 2014/07/13 16:03:54 jsing Exp $	*/
+/*
+ * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <err.h>
+#include <stdlib.h>
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+#include <openssl/tls1.h>
+
+int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp);
+SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
+    long length);
+
+struct ssl_asn1_test {
+	SSL_SESSION session;
+	const unsigned char asn1[512];
+	int asn1_len;
+};
+
+unsigned char tlsext_tick[] = {
+	0x43, 0x56, 0x45, 0x2d, 0x32, 0x30, 0x31, 0x34,
+	0x2d, 0x30, 0x31, 0x36, 0x30, 0x3a, 0x20, 0x37,
+	0x74, 0x68, 0x20, 0x41, 0x70, 0x72, 0x69, 0x6c,
+	0x20, 0x32, 0x30, 0x31, 0x34, 0x0a, 0x43, 0x56,
+	0x45, 0x2d, 0x32, 0x30, 0x31, 0x30, 0x2d, 0x35,
+	0x32, 0x39, 0x38, 0x3a, 0x20, 0x38, 0x74, 0x68,
+	0x20, 0x41, 0x70, 0x72, 0x69, 0x6c, 0x20, 0x32,
+	0x30, 0x31, 0x34, 0x0a, 0x43, 0x56, 0x45, 0x2d,
+	0x32, 0x30, 0x31, 0x34, 0x2d, 0x30, 0x31, 0x39,
+	0x38, 0x3a, 0x20, 0x32, 0x31, 0x73, 0x74, 0x20,
+	0x41, 0x70, 0x72, 0x69, 0x6c, 0x20, 0x32, 0x30,
+	0x31, 0x34, 0x0a, 0x43, 0x56, 0x45, 0x2d, 0x32,
+	0x30, 0x31, 0x34, 0x2d, 0x33, 0x34, 0x37, 0x30,
+	0x3a, 0x20, 0x33, 0x30, 0x74, 0x68, 0x20, 0x4d,
+	0x61, 0x79, 0x20, 0x32, 0x30, 0x31, 0x34, 0x0a,
+	0x43, 0x56, 0x45, 0x2d, 0x32, 0x30, 0x31, 0x34,
+	0x2d, 0x30, 0x31, 0x39, 0x35, 0x3a, 0x20, 0x35,
+	0x74, 0x68, 0x20, 0x4a, 0x75, 0x6e, 0x65, 0x20,
+	0x32, 0x30, 0x31, 0x34, 0x0a, 0x43, 0x56, 0x45,
+	0x2d, 0x32, 0x30, 0x31, 0x34, 0x2d, 0x30, 0x32,
+	0x32, 0x31, 0x3a, 0x20, 0x35, 0x74, 0x68, 0x20,
+	0x4a, 0x75, 0x6e, 0x65, 0x20, 0x32, 0x30, 0x31,
+	0x34, 0x0a, 0x43, 0x56, 0x45, 0x2d, 0x32, 0x30,
+	0x31, 0x34, 0x2d, 0x30, 0x32, 0x32, 0x34, 0x3a,
+	0x20, 0x35, 0x74, 0x68, 0x20, 0x4a, 0x75, 0x6e,
+	0x65, 0x20, 0x32, 0x30, 0x31, 0x34, 0x0a,
+};
+
+struct ssl_asn1_test ssl_asn1_tests[] = {
+	{
+		{
+			.cipher_id = 0x03000000L | 1,
+			.ssl_version = TLS1_2_VERSION,
+		},
+		{
+			0x30, 0x13, 0x02, 0x01, 0x01, 0x02, 0x02, 0x03,
+			0x03, 0x04, 0x02, 0x00, 0x01, 0x04, 0x00, 0x04,
+			0x00, 0xa4, 0x02, 0x04, 0x00,
+		},
+		21,
+	},
+	{
+		{
+			.cipher_id = 0x03000000L | 1,
+			.ssl_version = TLS1_2_VERSION,
+			.sid_ctx = "abcdefghijklmnopqrstuvwxyz",
+			.master_key_length = 26,
+			.session_id = "0123456789",
+			.session_id_length = 10,
+			.sid_ctx = "abcdefghijklmnopqrstuvwxyz",
+			.sid_ctx_length = 26,
+		},
+		{
+			0x30, 0x51, 0x02, 0x01, 0x01, 0x02, 0x02, 0x03,
+			0x03, 0x04, 0x02, 0x00, 0x01, 0x04, 0x0a, 0x30,
+			0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+			0x39, 0x04, 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0xa4, 0x1c, 0x04,
+			0x1a, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+			0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+			0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+			0x78, 0x79, 0x7a,
+		},
+		83,
+	},
+	{
+		{
+			.cipher_id = 0x03000000L | 1,
+			.ssl_version = TLS1_2_VERSION,
+			.sid_ctx = "abcdefghijklmnopqrstuvwxyz",
+			.master_key_length = 26,
+			.session_id = "0123456789",
+			.session_id_length = 10,
+			.sid_ctx = "abcdefghijklmnopqrstuvwxyz",
+			.sid_ctx_length = 26,
+			.time = 1405266069,
+			.timeout = 5,
+			.verify_result = 42,
+			.tlsext_hostname = "libressl.openbsd.org",
+			.tlsext_tick_lifetime_hint = 0xaabbccdd,
+			.tlsext_tick = tlsext_tick,
+			.tlsext_ticklen = 207,
+		},
+		{
+			0x30, 0x82, 0x01, 0x59, 0x02, 0x01, 0x01, 0x02,
+			0x02, 0x03, 0x03, 0x04, 0x02, 0x00, 0x01, 0x04,
+			0x0a, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
+			0x37, 0x38, 0x39, 0x04, 0x1a, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa1,
+			0x06, 0x02, 0x04, 0x53, 0xc2, 0xa8, 0x95, 0xa2,
+			0x03, 0x02, 0x01, 0x05, 0xa4, 0x1c, 0x04, 0x1a,
+			0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
+			0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
+			0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
+			0x79, 0x7a, 0xa5, 0x03, 0x02, 0x01, 0x2a, 0xa6,
+			0x16, 0x04, 0x14, 0x6c, 0x69, 0x62, 0x72, 0x65,
+			0x73, 0x73, 0x6c, 0x2e, 0x6f, 0x70, 0x65, 0x6e,
+			0x62, 0x73, 0x64, 0x2e, 0x6f, 0x72, 0x67, 0xa9,
+			0x07, 0x02, 0x05, 0x00, 0xaa, 0xbb, 0xcc, 0xdd,
+			0xaa, 0x81, 0xd2, 0x04, 0x81, 0xcf, 0x43, 0x56,
+			0x45, 0x2d, 0x32, 0x30, 0x31, 0x34, 0x2d, 0x30,
+			0x31, 0x36, 0x30, 0x3a, 0x20, 0x37, 0x74, 0x68,
+			0x20, 0x41, 0x70, 0x72, 0x69, 0x6c, 0x20, 0x32,
+			0x30, 0x31, 0x34, 0x0a, 0x43, 0x56, 0x45, 0x2d,
+			0x32, 0x30, 0x31, 0x30, 0x2d, 0x35, 0x32, 0x39,
+			0x38, 0x3a, 0x20, 0x38, 0x74, 0x68, 0x20, 0x41,
+			0x70, 0x72, 0x69, 0x6c, 0x20, 0x32, 0x30, 0x31,
+			0x34, 0x0a, 0x43, 0x56, 0x45, 0x2d, 0x32, 0x30,
+			0x31, 0x34, 0x2d, 0x30, 0x31, 0x39, 0x38, 0x3a,
+			0x20, 0x32, 0x31, 0x73, 0x74, 0x20, 0x41, 0x70,
+			0x72, 0x69, 0x6c, 0x20, 0x32, 0x30, 0x31, 0x34,
+			0x0a, 0x43, 0x56, 0x45, 0x2d, 0x32, 0x30, 0x31,
+			0x34, 0x2d, 0x33, 0x34, 0x37, 0x30, 0x3a, 0x20,
+			0x33, 0x30, 0x74, 0x68, 0x20, 0x4d, 0x61, 0x79,
+			0x20, 0x32, 0x30, 0x31, 0x34, 0x0a, 0x43, 0x56,
+			0x45, 0x2d, 0x32, 0x30, 0x31, 0x34, 0x2d, 0x30,
+			0x31, 0x39, 0x35, 0x3a, 0x20, 0x35, 0x74, 0x68,
+			0x20, 0x4a, 0x75, 0x6e, 0x65, 0x20, 0x32, 0x30,
+			0x31, 0x34, 0x0a, 0x43, 0x56, 0x45, 0x2d, 0x32,
+			0x30, 0x31, 0x34, 0x2d, 0x30, 0x32, 0x32, 0x31,
+			0x3a, 0x20, 0x35, 0x74, 0x68, 0x20, 0x4a, 0x75,
+			0x6e, 0x65, 0x20, 0x32, 0x30, 0x31, 0x34, 0x0a,
+			0x43, 0x56, 0x45, 0x2d, 0x32, 0x30, 0x31, 0x34,
+			0x2d, 0x30, 0x32, 0x32, 0x34, 0x3a, 0x20, 0x35,
+			0x74, 0x68, 0x20, 0x4a, 0x75, 0x6e, 0x65, 0x20,
+			0x32, 0x30, 0x31, 0x34, 0x0a,
+		},
+		349,
+	},
+};
+
+#define N_SSL_ASN1_TESTS \
+    (sizeof(ssl_asn1_tests) / sizeof(*ssl_asn1_tests))
+
+static int
+session_strcmp(const unsigned char *o1, const unsigned char *o2, size_t len)
+{
+	if (o1 == NULL && o2 == NULL)
+		return (0);
+	if (o1 == NULL || o2 == NULL)
+		return (1);
+	return memcmp(o1, o2, len);
+}
+
+static int
+session_cmp(SSL_SESSION *s1, SSL_SESSION *s2)
+{
+	/* Compare two sessions, from the perspective of ASN1. */
+	if (s1->ssl_version != s2->ssl_version) {
+		fprintf(stderr, "ssl_version differs: %i != %i\n",
+		    s1->ssl_version, s2->ssl_version);
+		return (1);
+	}
+	if (s1->cipher_id != s2->cipher_id) {
+		fprintf(stderr, "cipher_id differs: %li != %li\n",
+		    s1->cipher_id, s2->cipher_id);
+		return (1);
+	}
+
+	if (s1->master_key_length != s2->master_key_length) {
+		fprintf(stderr, "master_key_length differs: %i != %i\n",
+		    s1->master_key_length, s2->master_key_length);
+		return (1);
+	}
+	if (session_strcmp(s1->master_key, s2->master_key,
+	    s1->master_key_length) != 0) {
+		fprintf(stderr, "master_key differs\n");
+		return (1);
+	}
+
+	if (s1->session_id_length != s2->session_id_length) {
+		fprintf(stderr, "session_id_length differs: %i != %i\n",
+		    s1->session_id_length, s2->session_id_length);
+		return (1);
+	}
+	if (session_strcmp(s1->session_id, s2->session_id,
+	    s1->session_id_length) != 0) {
+		fprintf(stderr, "session_id differs\n");
+		return (1);
+	}
+
+	if (s1->sid_ctx_length != s2->sid_ctx_length) {
+		fprintf(stderr, "sid_ctx_length differs: %i != %i\n",
+		    s1->sid_ctx_length, s2->sid_ctx_length);
+		return (1);
+	}
+	if (session_strcmp(s1->sid_ctx, s2->sid_ctx,
+	    s1->sid_ctx_length) != 0) {
+		fprintf(stderr, "sid_ctx differs\n");
+		return (1);
+	}
+
+	/* d2i_SSL_SESSION uses the current time if decoding a zero value. */
+	if ((s1->time != s2->time) && s1->time != 0 && s2->time != 0) {
+		fprintf(stderr, "time differs: %lli != %lli\n",
+		    (long long)s1->time, (long long)s2->time);
+		return (1);
+	}
+	/* d2i_SSL_SESSION uses a timeout of 3 if decoding a zero value. */
+	if ((s1->timeout != s2->timeout) &&
+	    s1->timeout != 3 && s2->timeout != 3) {
+		fprintf(stderr, "timeout differs: %li != %li\n",
+		    s1->timeout, s2->timeout);
+		return (1);
+	}
+
+	/* Ensure that a certificate is or is not present in both. */
+	if ((s1->peer != NULL || s2->peer != NULL) &&
+	    (s1->peer == NULL || s2->peer == NULL)) {
+		fprintf(stderr, "peer differs\n");
+		return (1);
+	}
+	
+	if (s1->verify_result != s2->verify_result) {
+		fprintf(stderr, "verify_result differs: %li != %li\n",
+		    s1->verify_result, s2->verify_result);
+		return (1);
+	}
+
+	if (session_strcmp(s1->tlsext_hostname, s2->tlsext_hostname,
+	    (s1->tlsext_hostname ? strlen(s1->tlsext_hostname) : 0)) != 0) {
+		fprintf(stderr, "sid_ctx differs\n");
+		return (1);
+	}
+	if (s1->tlsext_tick_lifetime_hint != s2->tlsext_tick_lifetime_hint) {
+		fprintf(stderr, "tlsext_tick_lifetime_hint differs: "
+		    "%li != %li\n", s1->tlsext_tick_lifetime_hint,
+		    s2->tlsext_tick_lifetime_hint);
+		return (1);
+	}
+	if (s1->tlsext_ticklen != s2->tlsext_ticklen) {
+		fprintf(stderr, "tlsext_ticklen differs: %zu != %zu\n",
+		    s1->tlsext_ticklen, s2->tlsext_ticklen);
+		return (1);
+	}
+	if (session_strcmp(s1->tlsext_tick, s2->tlsext_tick,
+	    s1->tlsext_ticklen) != 0) {
+		fprintf(stderr, "tlsext_tick differs\n");
+		return (1);
+	}
+
+	return (0);
+}
+
+static int
+do_ssl_asn1_test(int test_no, struct ssl_asn1_test *sat)
+{
+	SSL_SESSION session, *sp = NULL;
+	unsigned char *ap, *asn1 = NULL;
+	const unsigned char *pp;
+	int i, len, rv = 1;
+
+	len = i2d_SSL_SESSION(&sat->session, NULL);
+	if (len != sat->asn1_len) {
+		fprintf(stderr, "FAIL: test %i returned ASN1 length %i, "
+		    "want %i\n", test_no, len, sat->asn1_len);
+		goto failed;
+	}
+
+	if ((asn1 = malloc(len)) == NULL)
+		errx(1, "failed to allocate memory");
+
+	ap = asn1;
+	len = i2d_SSL_SESSION(&sat->session, &ap);
+	if ((ap - asn1) > len) {
+		fprintf(stderr, "FAIL: test %i overflowed ticket buffer "
+		    "(%i > %i)\n", test_no, (int)(ap - asn1), len);
+		goto failed;
+	}
+
+	/*
+	 * Length *should* be the same, but check it again since the code
+	 * path is different.
+	 */
+	if (len != sat->asn1_len) {
+		fprintf(stderr, "FAIL: test %i returned ASN1 length %i, "
+		    "want %i\n", test_no, len, sat->asn1_len);
+		goto failed;
+	}
+
+	if (memcmp(asn1, &sat->asn1, len) != 0) {
+		fprintf(stderr, "FAIL: test %i - encoding differs:\n", test_no);
+		fprintf(stderr, "encoding:\n");
+		for (i = 1; i <= len; i++) {
+			fprintf(stderr, " 0x%02hhx,", asn1[i - 1]);
+			if (i % 8 == 0)
+				fprintf(stderr, "\n");
+		}
+		fprintf(stderr, "\n");
+		fprintf(stderr, "test data:\n");
+		for (i = 1; i <= sat->asn1_len; i++) {
+			fprintf(stderr, " 0x%02hhx,", sat->asn1[i - 1]);
+			if (i % 8 == 0)
+				fprintf(stderr, "\n");
+		}
+		fprintf(stderr, "\n");
+		goto failed;
+	}
+
+	sp = &session;
+	memset(sp, 0, sizeof(*sp));
+	pp = sat->asn1;
+
+	if ((sp = d2i_SSL_SESSION(&sp, &pp, sat->asn1_len)) == NULL) {
+		fprintf(stderr, "FAIL: test %i - decoding failed\n", test_no);
+		goto failed;
+	}
+
+	if (session_cmp(sp, &sat->session) != 0) {
+		fprintf(stderr, "FAIL: test %i - decoding differs\n", test_no);
+		goto failed;
+	}
+
+	rv = 0;
+
+failed:
+	ERR_print_errors(BIO_new_fp(stderr, BIO_NOCLOSE));
+
+	free(asn1);
+
+	return (rv);
+}
+
+int
+main(int argc, char **argv)
+{
+	int failed = 0;
+	size_t i;
+
+	SSL_library_init();
+	SSL_load_error_strings();
+
+	for (i = 0; i < N_SSL_ASN1_TESTS; i++)
+		failed += do_ssl_asn1_test(i, &ssl_asn1_tests[i]);
+
+	return (failed);
+}