Adding upstream version 3.7.9.upstream/3.7.9upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 233 insertions, 0 deletions

diff --git a/tests/tls13/key_share.c b/tests/tls13/key_share.c
new file mode 100644
index 0000000..fa785a5
--- /dev/null
+++ b/tests/tls13/key_share.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 2017-2018 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuTLS is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <gnutls/gnutls.h>
+
+#include "cert-common.h"
+#include "utils.h"
+#include "tls13/ext-parse.h"
+#include "eagain-common.h"
+
+/* This program tests the Key Share behavior in Client Hello,
+ * and whether the flags to gnutls_init for key share are followed.
+ */
+
+const char *testname = "";
+
+#define myfail(fmt, ...) \
+	fail("%s: "fmt, testname, ##__VA_ARGS__)
+
+const char *side = "";
+
+static void tls_log_func(int level, const char *str)
+{
+	fprintf(stderr, "%s|<%d>| %s", side, level, str);
+}
+
+unsigned int tls_id_to_group[] = {
+	[23] = GNUTLS_GROUP_SECP256R1,
+	[24] = GNUTLS_GROUP_SECP384R1,
+	[29] = GNUTLS_GROUP_X25519,
+	[30] = GNUTLS_GROUP_X448,
+	[0x100] = GNUTLS_GROUP_FFDHE2048,
+	[0x101] = GNUTLS_GROUP_FFDHE3072
+};
+
+
+#define TLS_EXT_KEY_SHARE 51
+
+typedef struct ctx_st {
+	gnutls_group_t group;
+	unsigned ngroups;
+} ctx_st;
+
+static
+void check_ks_contents(void *priv, gnutls_datum_t *msg)
+{
+	ctx_st *ctx;
+	int len;
+	gnutls_session_t session = priv;
+	int pos;
+	unsigned total = 0, id;
+	unsigned found = 0;
+
+	ctx = gnutls_session_get_ptr(session);
+
+	len = (msg->data[0] << 8) | msg->data[1];
+	if (len+2 != (int)msg->size)
+		myfail("mismatch in length (%d vs %d)!\n", len, (int)msg->size);
+
+	pos = 2;
+
+	while((unsigned)pos < msg->size) {
+		id = (msg->data[pos] << 8) | msg->data[pos+1];
+		pos += 2;
+		len -= 2;
+
+		if (debug)
+			success("found group: %u\n", id);
+		if (id < sizeof(tls_id_to_group)/sizeof(tls_id_to_group[0])) {
+			if (tls_id_to_group[id] == ctx->group)
+				found = 1;
+		}
+		total++;
+
+		SKIP16(pos, msg->size);
+	}
+
+	if (total != ctx->ngroups) {
+		myfail("found %d groups, expected %d\n", total, ctx->ngroups);
+	}
+
+	if (found == 0) {
+		myfail("did not find group %s\n", gnutls_group_get_name(ctx->group));
+	}
+}
+
+static int client_hello_callback(gnutls_session_t session, unsigned int htype,
+	unsigned post, unsigned int incoming, const gnutls_datum_t *msg)
+{
+	if (htype == GNUTLS_HANDSHAKE_CLIENT_HELLO && post == GNUTLS_HOOK_POST) {
+		if (find_client_extension(msg, TLS_EXT_KEY_SHARE, session, check_ks_contents) == 0)
+			fail("Could not find key share extension!\n");
+	}
+
+	return 0;
+}
+
+static void start(const char *name, const char *prio, unsigned flag,
+		  gnutls_group_t group, unsigned ngroups)
+{
+	int sret, cret;
+	gnutls_certificate_credentials_t scred, ccred;
+	gnutls_session_t server, client;
+	ctx_st ctx;
+
+	testname = name;
+	success("== test %s ==\n", testname);
+
+	global_init();
+	gnutls_global_set_log_function(tls_log_func);
+	if (debug)
+		gnutls_global_set_log_level(9);
+
+	/* Init server */
+	assert(gnutls_certificate_allocate_credentials(&scred) >= 0);
+	assert(gnutls_certificate_set_x509_key_mem(scred,
+						   &server_cert,
+						   &server_key,
+						   GNUTLS_X509_FMT_PEM) >= 0);
+
+	gnutls_init(&server, GNUTLS_SERVER);
+
+	gnutls_handshake_set_hook_function(server, GNUTLS_HANDSHAKE_ANY,
+					   GNUTLS_HOOK_BOTH,
+					   client_hello_callback);
+	ctx.group = group;
+	ctx.ngroups = ngroups;
+	gnutls_session_set_ptr(server, &ctx);
+
+	/* avoid calling all the priority functions, since the defaults
+	 * are adequate.
+	 */
+	gnutls_priority_set_direct(server, "NORMAL:+VERS-TLS1.3", NULL);
+
+	gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, scred);
+	gnutls_transport_set_push_function(server, server_push);
+	gnutls_transport_set_pull_function(server, server_pull);
+	gnutls_transport_set_ptr(server, server);
+
+	/* Init client */
+	gnutls_certificate_allocate_credentials(&ccred);
+	assert(gnutls_certificate_set_x509_trust_mem
+	       (ccred, &ca3_cert, GNUTLS_X509_FMT_PEM) >= 0);
+
+	gnutls_init(&client, GNUTLS_CLIENT|flag);
+
+	cret = gnutls_priority_set_direct(client, prio, NULL);
+	if (cret < 0)
+		myfail("cannot set TLS 1.3 priorities\n");
+
+	/* put the anonymous credentials to the current session
+	 */
+	gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, ccred);
+
+	gnutls_transport_set_push_function(client, client_push);
+	gnutls_transport_set_pull_function(client, client_pull);
+	gnutls_transport_set_ptr(client, client);
+
+	HANDSHAKE(client, server);
+	if (debug)
+		success("Handshake established\n");
+
+	if (gnutls_group_get(server) != group)
+		myfail("group doesn't match the expected: %s\n", gnutls_group_get_name(gnutls_group_get(server)));
+
+	gnutls_bye(client, GNUTLS_SHUT_WR);
+	gnutls_bye(server, GNUTLS_SHUT_WR);
+
+	gnutls_deinit(client);
+	gnutls_deinit(server);
+
+	gnutls_certificate_free_credentials(scred);
+	gnutls_certificate_free_credentials(ccred);
+
+	gnutls_global_deinit();
+	reset_buffers();
+}
+
+void doit(void)
+{
+	start("single group: default secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3", GNUTLS_KEY_SHARE_TOP, GNUTLS_GROUP_SECP256R1, 1);
+	start("single group: secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP, GNUTLS_GROUP_SECP256R1, 1);
+	start("single group: x25519", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X25519:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP, GNUTLS_GROUP_X25519, 1);
+
+	/* unfortunately we strictly follow the rfc7919 RFC and we prioritize groups
+	 * based on ciphersuite listing as well. To prioritize the FFDHE groups we need
+	 * to prioritize the non-EC ciphersuites first. */
+	start("single group: ffdhe2048", "NORMAL:-KX-ALL:+DHE-RSA:+ECDHE-RSA:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE3072", GNUTLS_KEY_SHARE_TOP, GNUTLS_GROUP_FFDHE2048, 1);
+
+	start("two groups: default secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3", GNUTLS_KEY_SHARE_TOP2, GNUTLS_GROUP_SECP256R1, 2);
+	start("two groups: secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP2, GNUTLS_GROUP_SECP256R1, 2);
+	start("two groups: x25519", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X25519:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP2, GNUTLS_GROUP_X25519, 2);
+	start("two groups: x448", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X448:+GROUP-X25519:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP2, GNUTLS_GROUP_X448, 2);
+	start("two groups: ffdhe2048", "NORMAL:-KX-ALL:+DHE-RSA:+ECDHE-RSA:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE3072", GNUTLS_KEY_SHARE_TOP2, GNUTLS_GROUP_FFDHE2048, 2);
+
+	start("three groups: default secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3", GNUTLS_KEY_SHARE_TOP3, GNUTLS_GROUP_SECP256R1, 3);
+	start("three groups: secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP3, GNUTLS_GROUP_SECP256R1, 3);
+	start("three groups: x25519", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X25519:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP3, GNUTLS_GROUP_X25519, 3);
+	start("three groups: x448", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X448:+GROUP-X25519:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-FFDHE2048", GNUTLS_KEY_SHARE_TOP3, GNUTLS_GROUP_X448, 3);
+	start("three groups: ffdhe2048", "NORMAL:-KX-ALL:+DHE-RSA:+ECDHE-RSA:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE3072", GNUTLS_KEY_SHARE_TOP3, GNUTLS_GROUP_FFDHE2048, 3);
+
+	/* test default behavior */
+	start("default groups(2): default secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3", 0, GNUTLS_GROUP_SECP256R1, 2);
+	start("default groups(2): secp256r1", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE2048", 0, GNUTLS_GROUP_SECP256R1, 2);
+	start("default groups(2): x25519", "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-X25519:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-FFDHE2048", 0, GNUTLS_GROUP_X25519, 2);
+	start("default groups(2): ffdhe2048", "NORMAL:-KX-ALL:+DHE-RSA:+ECDHE-RSA:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-SECP256R1:+GROUP-SECP384R1:+GROUP-X25519:+GROUP-FFDHE3072", 0, GNUTLS_GROUP_FFDHE2048, 2);
+}