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-rw-r--r--tests/unit/test-crypto-block.c368
1 files changed, 368 insertions, 0 deletions
diff --git a/tests/unit/test-crypto-block.c b/tests/unit/test-crypto-block.c
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+++ b/tests/unit/test-crypto-block.c
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+/*
+ * QEMU Crypto block encryption
+ *
+ * Copyright (c) 2016 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "crypto/init.h"
+#include "crypto/block.h"
+#include "qemu/buffer.h"
+#include "qemu/module.h"
+#include "crypto/secret.h"
+#ifndef _WIN32
+#include <sys/resource.h>
+#endif
+
+#if (defined(_WIN32) || defined RUSAGE_THREAD) && \
+ (defined(CONFIG_NETTLE) || defined(CONFIG_GCRYPT))
+#define TEST_LUKS
+#else
+#undef TEST_LUKS
+#endif
+
+static QCryptoBlockCreateOptions qcow_create_opts = {
+ .format = Q_CRYPTO_BLOCK_FORMAT_QCOW,
+ .u.qcow = {
+ .has_key_secret = true,
+ .key_secret = (char *)"sec0",
+ },
+};
+
+static QCryptoBlockOpenOptions qcow_open_opts = {
+ .format = Q_CRYPTO_BLOCK_FORMAT_QCOW,
+ .u.qcow = {
+ .has_key_secret = true,
+ .key_secret = (char *)"sec0",
+ },
+};
+
+
+#ifdef TEST_LUKS
+static QCryptoBlockOpenOptions luks_open_opts = {
+ .format = Q_CRYPTO_BLOCK_FORMAT_LUKS,
+ .u.luks = {
+ .has_key_secret = true,
+ .key_secret = (char *)"sec0",
+ },
+};
+
+
+/* Creation with all default values */
+static QCryptoBlockCreateOptions luks_create_opts_default = {
+ .format = Q_CRYPTO_BLOCK_FORMAT_LUKS,
+ .u.luks = {
+ .has_key_secret = true,
+ .key_secret = (char *)"sec0",
+ },
+};
+
+
+/* ...and with explicit values */
+static QCryptoBlockCreateOptions luks_create_opts_aes256_cbc_plain64 = {
+ .format = Q_CRYPTO_BLOCK_FORMAT_LUKS,
+ .u.luks = {
+ .has_key_secret = true,
+ .key_secret = (char *)"sec0",
+ .has_cipher_alg = true,
+ .cipher_alg = QCRYPTO_CIPHER_ALG_AES_256,
+ .has_cipher_mode = true,
+ .cipher_mode = QCRYPTO_CIPHER_MODE_CBC,
+ .has_ivgen_alg = true,
+ .ivgen_alg = QCRYPTO_IVGEN_ALG_PLAIN64,
+ },
+};
+
+
+static QCryptoBlockCreateOptions luks_create_opts_aes256_cbc_essiv = {
+ .format = Q_CRYPTO_BLOCK_FORMAT_LUKS,
+ .u.luks = {
+ .has_key_secret = true,
+ .key_secret = (char *)"sec0",
+ .has_cipher_alg = true,
+ .cipher_alg = QCRYPTO_CIPHER_ALG_AES_256,
+ .has_cipher_mode = true,
+ .cipher_mode = QCRYPTO_CIPHER_MODE_CBC,
+ .has_ivgen_alg = true,
+ .ivgen_alg = QCRYPTO_IVGEN_ALG_ESSIV,
+ .has_ivgen_hash_alg = true,
+ .ivgen_hash_alg = QCRYPTO_HASH_ALG_SHA256,
+ .has_hash_alg = true,
+ .hash_alg = QCRYPTO_HASH_ALG_SHA1,
+ },
+};
+#endif /* TEST_LUKS */
+
+
+static struct QCryptoBlockTestData {
+ const char *path;
+ QCryptoBlockCreateOptions *create_opts;
+ QCryptoBlockOpenOptions *open_opts;
+
+ bool expect_header;
+
+ QCryptoCipherAlgorithm cipher_alg;
+ QCryptoCipherMode cipher_mode;
+ QCryptoHashAlgorithm hash_alg;
+
+ QCryptoIVGenAlgorithm ivgen_alg;
+ QCryptoHashAlgorithm ivgen_hash;
+
+ bool slow;
+} test_data[] = {
+ {
+ .path = "/crypto/block/qcow",
+ .create_opts = &qcow_create_opts,
+ .open_opts = &qcow_open_opts,
+
+ .expect_header = false,
+
+ .cipher_alg = QCRYPTO_CIPHER_ALG_AES_128,
+ .cipher_mode = QCRYPTO_CIPHER_MODE_CBC,
+
+ .ivgen_alg = QCRYPTO_IVGEN_ALG_PLAIN64,
+ },
+#ifdef TEST_LUKS
+ {
+ .path = "/crypto/block/luks/default",
+ .create_opts = &luks_create_opts_default,
+ .open_opts = &luks_open_opts,
+
+ .expect_header = true,
+
+ .cipher_alg = QCRYPTO_CIPHER_ALG_AES_256,
+ .cipher_mode = QCRYPTO_CIPHER_MODE_XTS,
+ .hash_alg = QCRYPTO_HASH_ALG_SHA256,
+
+ .ivgen_alg = QCRYPTO_IVGEN_ALG_PLAIN64,
+
+ .slow = true,
+ },
+ {
+ .path = "/crypto/block/luks/aes-256-cbc-plain64",
+ .create_opts = &luks_create_opts_aes256_cbc_plain64,
+ .open_opts = &luks_open_opts,
+
+ .expect_header = true,
+
+ .cipher_alg = QCRYPTO_CIPHER_ALG_AES_256,
+ .cipher_mode = QCRYPTO_CIPHER_MODE_CBC,
+ .hash_alg = QCRYPTO_HASH_ALG_SHA256,
+
+ .ivgen_alg = QCRYPTO_IVGEN_ALG_PLAIN64,
+
+ .slow = true,
+ },
+ {
+ .path = "/crypto/block/luks/aes-256-cbc-essiv",
+ .create_opts = &luks_create_opts_aes256_cbc_essiv,
+ .open_opts = &luks_open_opts,
+
+ .expect_header = true,
+
+ .cipher_alg = QCRYPTO_CIPHER_ALG_AES_256,
+ .cipher_mode = QCRYPTO_CIPHER_MODE_CBC,
+ .hash_alg = QCRYPTO_HASH_ALG_SHA1,
+
+ .ivgen_alg = QCRYPTO_IVGEN_ALG_ESSIV,
+ .ivgen_hash = QCRYPTO_HASH_ALG_SHA256,
+
+ .slow = true,
+ },
+#endif
+};
+
+
+static ssize_t test_block_read_func(QCryptoBlock *block,
+ size_t offset,
+ uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp)
+{
+ Buffer *header = opaque;
+
+ g_assert_cmpint(offset + buflen, <=, header->capacity);
+
+ memcpy(buf, header->buffer + offset, buflen);
+
+ return buflen;
+}
+
+
+static ssize_t test_block_init_func(QCryptoBlock *block,
+ size_t headerlen,
+ void *opaque,
+ Error **errp)
+{
+ Buffer *header = opaque;
+
+ g_assert_cmpint(header->capacity, ==, 0);
+
+ buffer_reserve(header, headerlen);
+
+ return headerlen;
+}
+
+
+static ssize_t test_block_write_func(QCryptoBlock *block,
+ size_t offset,
+ const uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp)
+{
+ Buffer *header = opaque;
+
+ g_assert_cmpint(buflen + offset, <=, header->capacity);
+
+ memcpy(header->buffer + offset, buf, buflen);
+ header->offset = offset + buflen;
+
+ return buflen;
+}
+
+
+static Object *test_block_secret(void)
+{
+ return object_new_with_props(
+ TYPE_QCRYPTO_SECRET,
+ object_get_objects_root(),
+ "sec0",
+ &error_abort,
+ "data", "123456",
+ NULL);
+}
+
+static void test_block_assert_setup(const struct QCryptoBlockTestData *data,
+ QCryptoBlock *blk)
+{
+ QCryptoIVGen *ivgen;
+ QCryptoCipher *cipher;
+
+ ivgen = qcrypto_block_get_ivgen(blk);
+ cipher = qcrypto_block_get_cipher(blk);
+
+ g_assert(ivgen);
+ g_assert(cipher);
+
+ g_assert_cmpint(data->cipher_alg, ==, cipher->alg);
+ g_assert_cmpint(data->cipher_mode, ==, cipher->mode);
+ g_assert_cmpint(data->hash_alg, ==,
+ qcrypto_block_get_kdf_hash(blk));
+
+ g_assert_cmpint(data->ivgen_alg, ==,
+ qcrypto_ivgen_get_algorithm(ivgen));
+ g_assert_cmpint(data->ivgen_hash, ==,
+ qcrypto_ivgen_get_hash(ivgen));
+}
+
+
+static void test_block(gconstpointer opaque)
+{
+ const struct QCryptoBlockTestData *data = opaque;
+ QCryptoBlock *blk;
+ Buffer header;
+ Object *sec = test_block_secret();
+
+ memset(&header, 0, sizeof(header));
+ buffer_init(&header, "header");
+
+ blk = qcrypto_block_create(data->create_opts, NULL,
+ test_block_init_func,
+ test_block_write_func,
+ &header,
+ &error_abort);
+ g_assert(blk);
+
+ if (data->expect_header) {
+ g_assert_cmpint(header.capacity, >, 0);
+ } else {
+ g_assert_cmpint(header.capacity, ==, 0);
+ }
+
+ test_block_assert_setup(data, blk);
+
+ qcrypto_block_free(blk);
+ object_unparent(sec);
+
+ /* Ensure we can't open without the secret */
+ blk = qcrypto_block_open(data->open_opts, NULL,
+ test_block_read_func,
+ &header,
+ 0,
+ 1,
+ NULL);
+ g_assert(blk == NULL);
+
+ /* Ensure we can't open without the secret, unless NO_IO */
+ blk = qcrypto_block_open(data->open_opts, NULL,
+ test_block_read_func,
+ &header,
+ QCRYPTO_BLOCK_OPEN_NO_IO,
+ 1,
+ &error_abort);
+
+ g_assert(qcrypto_block_get_cipher(blk) == NULL);
+ g_assert(qcrypto_block_get_ivgen(blk) == NULL);
+
+ qcrypto_block_free(blk);
+
+
+ /* Now open for real with secret */
+ sec = test_block_secret();
+ blk = qcrypto_block_open(data->open_opts, NULL,
+ test_block_read_func,
+ &header,
+ 0,
+ 1,
+ &error_abort);
+ g_assert(blk);
+
+ test_block_assert_setup(data, blk);
+
+ qcrypto_block_free(blk);
+
+ object_unparent(sec);
+
+ buffer_free(&header);
+}
+
+
+int main(int argc, char **argv)
+{
+ gsize i;
+
+ module_call_init(MODULE_INIT_QOM);
+ g_test_init(&argc, &argv, NULL);
+
+ g_assert(qcrypto_init(NULL) == 0);
+
+ for (i = 0; i < G_N_ELEMENTS(test_data); i++) {
+ if (test_data[i].open_opts->format == Q_CRYPTO_BLOCK_FORMAT_LUKS &&
+ !qcrypto_hash_supports(test_data[i].hash_alg)) {
+ continue;
+ }
+ if (!test_data[i].slow ||
+ g_test_slow()) {
+ g_test_add_data_func(test_data[i].path, &test_data[i], test_block);
+ }
+ }
+
+ return g_test_run();
+}
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