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/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
/*
* SunRPC GSS Kerberos 5 mechanism internal definitions
*
* Copyright (c) 2022 Oracle and/or its affiliates.
*/
#ifndef _NET_SUNRPC_AUTH_GSS_KRB5_INTERNAL_H
#define _NET_SUNRPC_AUTH_GSS_KRB5_INTERNAL_H
/*
* GSS Kerberos 5 mechanism Per-Message calls.
*/
u32 gss_krb5_get_mic_v1(struct krb5_ctx *ctx, struct xdr_buf *text,
struct xdr_netobj *token);
u32 gss_krb5_get_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *text,
struct xdr_netobj *token);
u32 gss_krb5_verify_mic_v1(struct krb5_ctx *ctx, struct xdr_buf *message_buffer,
struct xdr_netobj *read_token);
u32 gss_krb5_verify_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *message_buffer,
struct xdr_netobj *read_token);
u32 gss_krb5_wrap_v1(struct krb5_ctx *kctx, int offset,
struct xdr_buf *buf, struct page **pages);
u32 gss_krb5_wrap_v2(struct krb5_ctx *kctx, int offset,
struct xdr_buf *buf, struct page **pages);
u32 gss_krb5_unwrap_v1(struct krb5_ctx *kctx, int offset, int len,
struct xdr_buf *buf, unsigned int *slack,
unsigned int *align);
u32 gss_krb5_unwrap_v2(struct krb5_ctx *kctx, int offset, int len,
struct xdr_buf *buf, unsigned int *slack,
unsigned int *align);
/*
* Implementation internal functions
*/
void krb5_make_confounder(u8 *p, int conflen);
u32 gss_krb5_checksum(struct crypto_ahash *tfm, char *header, int hdrlen,
const struct xdr_buf *body, int body_offset,
struct xdr_netobj *cksumout);
u32 krb5_encrypt(struct crypto_sync_skcipher *key, void *iv, void *in,
void *out, int length);
u32 krb5_decrypt(struct crypto_sync_skcipher *key, void *iv, void *in,
void *out, int length);
u32 gss_krb5_aes_encrypt(struct krb5_ctx *kctx, u32 offset,
struct xdr_buf *buf, struct page **pages);
u32 gss_krb5_aes_decrypt(struct krb5_ctx *kctx, u32 offset, u32 len,
struct xdr_buf *buf, u32 *plainoffset, u32 *plainlen);
#endif /* _NET_SUNRPC_AUTH_GSS_KRB5_INTERNAL_H */
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