tests: added unit tests for the base64 raw decoding functions

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>

2 files changed, 192 insertions, 1 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index b44c3e53f3..08817210a2 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -140,7 +140,7 @@ ctests = mini-record-2 simple gc set_pkcs12_cred cert certuniqueid	\
 	 hostname-check-utf8 pkcs8-key-decode-encrypted priority-mix pkcs7 \
 	 send-data-before-handshake recv-data-before-handshake crt_inv_write \
 	 x509sign-verify-error rng-op-nonce rng-op-random rng-op-key x509-dn-decode-compat \
-	 ip-check mini-x509-ipaddr trust-store
+	 ip-check mini-x509-ipaddr trust-store base64-raw
 
 if HAVE_SECCOMP_TESTS
 ctests += dtls-with-seccomp tls-with-seccomp dtls-client-with-seccomp tls-client-with-seccomp
diff --git a/tests/base64-raw.c b/tests/base64-raw.c
new file mode 100644
index 0000000000..5f29b235a5
--- /dev/null
+++ b/tests/base64-raw.c
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2016, 2017 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 General Public License
+ * along with GnuTLS; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+/* Parts copied from GnuTLS example programs. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <string.h>
+#include <gnutls/gnutls.h>
+
+#include "utils.h"
+
+/* This checks base64 raw encoding without PEM headers */
+
+static void encode(const char *test_name, const gnutls_datum_t *raw, const char *expected)
+{
+	int ret;
+	gnutls_datum_t out, in;
+
+	ret = gnutls_pem_base64_encode2(NULL, raw, &out);
+	if (ret < 0) {
+		fail("%s: gnutls_pem_base64_encode2: %s\n", test_name, gnutls_strerror(ret));
+		exit(1);
+	}
+
+	if (strlen(expected)!=out.size) {
+		fail("%s: gnutls_pem_base64_encode2: output has incorrect size (%d, expected %d)\n", test_name, (int)out.size, (int)strlen(expected));
+		exit(1);
+	}
+
+	if (strncasecmp(expected, (char*)out.data, out.size) != 0) {
+		fail("%s: gnutls_pem_base64_encode2: output does not match the expected\n", test_name);
+		exit(1);
+	}
+
+	gnutls_free(out.data);
+
+	in.data = (void*)expected;
+	in.size = strlen(expected);
+	ret = gnutls_pem_base64_decode2(NULL, &in, &out);
+	if (ret < 0) {
+		fail("%s: gnutls_pem_base64_decode2: %s\n", test_name, gnutls_strerror(ret));
+		exit(1);
+	}
+
+	if (raw->size!=out.size) {
+		fail("%s: gnutls_pem_base64_decode2: output has incorrect size (%d, expected %d)\n", test_name, out.size, raw->size);
+		exit(1);
+	}
+
+	if (memcmp(raw->data, out.data, out.size) != 0) {
+		fail("%s: gnutls_pem_base64_decode2: output does not match the expected\n", test_name);
+		exit(1);
+	}
+
+	gnutls_free(out.data);
+
+	return;
+}
+
+static void decode(const char *test_name, const gnutls_datum_t *raw, const char *hex, int res)
+{
+	int ret;
+	gnutls_datum_t out, in;
+
+	in.data = (void*)hex;
+	in.size = strlen(hex);
+	ret = gnutls_pem_base64_decode2(NULL, &in, &out);
+	if (ret < 0) {
+		if (res == ret) /* expected */
+			return;
+		fail("%s: gnutls_pem_base64_decode2: %d/%s\n", test_name, ret, gnutls_strerror(ret));
+		exit(1);
+	}
+
+	if (res != 0) {
+		fail("%s: gnutls_pem_base64_decode2: expected failure, but succeeded!\n", test_name);
+		exit(1);
+	}
+
+	if (raw->size!=out.size) {
+		fail("%s: gnutls_pem_base64_decode2: output has incorrect size (%d, expected %d)\n", test_name, out.size, raw->size);
+		exit(1);
+	}
+
+	if (memcmp(raw->data, out.data, out.size) != 0) {
+		fail("%s: gnutls_pem_base64_decode2: output does not match the expected\n", test_name);
+		exit(1);
+	}
+
+	gnutls_free(out.data);
+
+	return;
+}
+
+struct encode_tests_st {
+	const char *name;
+	gnutls_datum_t raw;
+	const char *pem;
+};
+
+struct encode_tests_st encode_tests[] = {
+	{
+		.name = "rnd1",
+		.pem = "9ppGioRpeiiD2lLNYC85eA==",
+		.raw = {(void*)"\xf6\x9a\x46\x8a\x84\x69\x7a\x28\x83\xda\x52\xcd\x60\x2f\x39\x78", 16}
+	},
+	{
+		.name = "rnd2",
+		.pem =  "LJ/7hUZ3TtPIz2dlc5+YvELe+Q==",
+		.raw = {(void*)"\x2c\x9f\xfb\x85\x46\x77\x4e\xd3\xc8\xcf\x67\x65\x73\x9f\x98\xbc\x42\xde\xf9", 19}
+	}
+};
+
+struct decode_tests_st {
+	const char *name;
+	gnutls_datum_t raw;
+	const char *pem;
+	int res;
+};
+
+struct decode_tests_st decode_tests[] = {
+	{
+		.name = "dec-rnd1",
+		.pem = "9ppGioRpeiiD2lLNYC85eA==",
+		.raw = {(void*)"\xf6\x9a\x46\x8a\x84\x69\x7a\x28\x83\xda\x52\xcd\x60\x2f\x39\x78", 16},
+		.res = 0
+	},
+	{
+		.name = "dec-rnd2",
+		.pem = "LJ/7hUZ3TtPIz2dlc5+YvELe+Q==",
+		.raw = {(void*)"\x2c\x9f\xfb\x85\x46\x77\x4e\xd3\xc8\xcf\x67\x65\x73\x9f\x98\xbc\x42\xde\xf9", 19},
+		.res = 0
+	},
+	{
+		.name = "dec-extra-chars",
+		.pem = "\n\n  LJ/7hUZ3TtPIz2dlc5+YvELe+Q==  \n",
+		.raw = {(void*)"\x2c\x9f\xfb\x85\x46\x77\x4e\xd3\xc8\xcf\x67\x65\x73\x9f\x98\xbc\x42\xde\xf9", 19},
+		.res = 0
+	},
+	{
+		.name = "dec-invalid-data",
+		.pem = "XLJ/7hUZ3TtPIz2dlc5+YvELe+Q==",
+		.raw = {(void*)"\x2c\x9f\xfb\x85\x46\x77\x4e\xd3\xc8\xcf\x67\x65\x73\x9f\x98\xbc\x42\xde\xf9", 19},
+		.res = GNUTLS_E_BASE64_DECODING_ERROR
+	},
+	{
+		.name = "dec-invalid-suffix",
+		.pem =	"LJ/7hUZ3TtPIz2dlc5+YvELe+Q==XXX",
+		.raw = {(void*)"\x2c\x9f\xfb\x85\x46\x77\x4e\xd3\xc8\xcf\x67\x65\x73\x9f\x98\xbc\x42\xde\xf9", 19},
+		.res = GNUTLS_E_BASE64_DECODING_ERROR
+	}
+};
+
+void doit(void)
+{
+	unsigned i;
+
+	for (i=0;i<sizeof(encode_tests)/sizeof(encode_tests[0]);i++) {
+		encode(encode_tests[i].name, &encode_tests[i].raw, encode_tests[i].pem);
+	}
+
+	for (i=0;i<sizeof(decode_tests)/sizeof(decode_tests[0]);i++) {
+		decode(decode_tests[i].name, &decode_tests[i].raw, decode_tests[i].pem, decode_tests[i].res);
+	}
+}
+