crypto.c (32cc71de) crypto.c (353a5d84)
1/*
2 * QEMU block full disk encryption
3 *
4 * Copyright (c) 2015-2016 Red Hat, Inc.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either

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65 BlockDriverState *bs = opaque;
66 ssize_t ret;
67
68 ret = bdrv_pread(bs->file, offset, buflen, buf, 0);
69 if (ret < 0) {
70 error_setg_errno(errp, -ret, "Could not read encryption header");
71 return ret;
72 }
1/*
2 * QEMU block full disk encryption
3 *
4 * Copyright (c) 2015-2016 Red Hat, Inc.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either

--- 56 unchanged lines hidden (view full) ---

65 BlockDriverState *bs = opaque;
66 ssize_t ret;
67
68 ret = bdrv_pread(bs->file, offset, buflen, buf, 0);
69 if (ret < 0) {
70 error_setg_errno(errp, -ret, "Could not read encryption header");
71 return ret;
72 }
73 return ret;
73 return buflen;
74}
75
76static ssize_t block_crypto_write_func(QCryptoBlock *block,
77 size_t offset,
78 const uint8_t *buf,
79 size_t buflen,
80 void *opaque,
81 Error **errp)
82{
83 BlockDriverState *bs = opaque;
84 ssize_t ret;
85
86 ret = bdrv_pwrite(bs->file, offset, buflen, buf, 0);
87 if (ret < 0) {
88 error_setg_errno(errp, -ret, "Could not write encryption header");
89 return ret;
90 }
74}
75
76static ssize_t block_crypto_write_func(QCryptoBlock *block,
77 size_t offset,
78 const uint8_t *buf,
79 size_t buflen,
80 void *opaque,
81 Error **errp)
82{
83 BlockDriverState *bs = opaque;
84 ssize_t ret;
85
86 ret = bdrv_pwrite(bs->file, offset, buflen, buf, 0);
87 if (ret < 0) {
88 error_setg_errno(errp, -ret, "Could not write encryption header");
89 return ret;
90 }
91 return ret;
91 return buflen;
92}
93
94
95struct BlockCryptoCreateData {
96 BlockBackend *blk;
97 uint64_t size;
98 PreallocMode prealloc;
99};

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93
94
95struct BlockCryptoCreateData {
96 BlockBackend *blk;
97 uint64_t size;
98 PreallocMode prealloc;
99};

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