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authorDon Dugger <n0ano@n0ano.com>2016-06-03 03:33:22 +0000
committerGerrit Code Review <gerrit@172.30.200.206>2016-06-03 03:33:23 +0000
commitda27230f80795d0028333713f036d44c53cb0e68 (patch)
treeb3d379eaf000adf72b36cb01cdf4d79c3e3f064c /qemu/crypto/blockpriv.h
parent0e68cb048bb8aadb14675f5d4286d8ab2fc35449 (diff)
parent437fd90c0250dee670290f9b714253671a990160 (diff)
Merge "These changes are the raw update to qemu-2.6."
Diffstat (limited to 'qemu/crypto/blockpriv.h')
-rw-r--r--qemu/crypto/blockpriv.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/qemu/crypto/blockpriv.h b/qemu/crypto/blockpriv.h
new file mode 100644
index 000000000..62970859d
--- /dev/null
+++ b/qemu/crypto/blockpriv.h
@@ -0,0 +1,92 @@
+/*
+ * QEMU Crypto block device encryption
+ *
+ * Copyright (c) 2015-2016 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 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/>.
+ *
+ */
+
+#ifndef QCRYPTO_BLOCK_PRIV_H__
+#define QCRYPTO_BLOCK_PRIV_H__
+
+#include "crypto/block.h"
+
+typedef struct QCryptoBlockDriver QCryptoBlockDriver;
+
+struct QCryptoBlock {
+ QCryptoBlockFormat format;
+
+ const QCryptoBlockDriver *driver;
+ void *opaque;
+
+ QCryptoCipher *cipher;
+ QCryptoIVGen *ivgen;
+ QCryptoHashAlgorithm kdfhash;
+ size_t niv;
+ uint64_t payload_offset; /* In bytes */
+};
+
+struct QCryptoBlockDriver {
+ int (*open)(QCryptoBlock *block,
+ QCryptoBlockOpenOptions *options,
+ QCryptoBlockReadFunc readfunc,
+ void *opaque,
+ unsigned int flags,
+ Error **errp);
+
+ int (*create)(QCryptoBlock *block,
+ QCryptoBlockCreateOptions *options,
+ QCryptoBlockInitFunc initfunc,
+ QCryptoBlockWriteFunc writefunc,
+ void *opaque,
+ Error **errp);
+
+ void (*cleanup)(QCryptoBlock *block);
+
+ int (*encrypt)(QCryptoBlock *block,
+ uint64_t startsector,
+ uint8_t *buf,
+ size_t len,
+ Error **errp);
+ int (*decrypt)(QCryptoBlock *block,
+ uint64_t startsector,
+ uint8_t *buf,
+ size_t len,
+ Error **errp);
+
+ bool (*has_format)(const uint8_t *buf,
+ size_t buflen);
+};
+
+
+int qcrypto_block_decrypt_helper(QCryptoCipher *cipher,
+ size_t niv,
+ QCryptoIVGen *ivgen,
+ int sectorsize,
+ uint64_t startsector,
+ uint8_t *buf,
+ size_t len,
+ Error **errp);
+
+int qcrypto_block_encrypt_helper(QCryptoCipher *cipher,
+ size_t niv,
+ QCryptoIVGen *ivgen,
+ int sectorsize,
+ uint64_t startsector,
+ uint8_t *buf,
+ size_t len,
+ Error **errp);
+
+#endif /* QCRYPTO_BLOCK_PRIV_H__ */