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69d6302b65
In the quest to remove all stack VLA usage from the kernel[1], this replaces struct crypto_skcipher and SKCIPHER_REQUEST_ON_STACK() usage with struct crypto_sync_skcipher and SYNC_SKCIPHER_REQUEST_ON_STACK(), which uses a fixed stack size. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com Cc: Ilya Dryomov <idryomov@gmail.com> Cc: "Yan, Zheng" <zyan@redhat.com> Cc: Sage Weil <sage@redhat.com> Cc: ceph-devel@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
37 lines
1.0 KiB
C
37 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _FS_CEPH_CRYPTO_H
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#define _FS_CEPH_CRYPTO_H
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#include <linux/ceph/types.h>
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#include <linux/ceph/buffer.h>
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/*
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* cryptographic secret
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*/
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struct ceph_crypto_key {
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int type;
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struct ceph_timespec created;
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int len;
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void *key;
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struct crypto_sync_skcipher *tfm;
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};
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int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
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const struct ceph_crypto_key *src);
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int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end);
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int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
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int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
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void ceph_crypto_key_destroy(struct ceph_crypto_key *key);
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/* crypto.c */
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int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
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void *buf, int buf_len, int in_len, int *pout_len);
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int ceph_crypto_init(void);
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void ceph_crypto_shutdown(void);
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/* armor.c */
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int ceph_armor(char *dst, const char *src, const char *end);
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int ceph_unarmor(char *dst, const char *src, const char *end);
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#endif
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