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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465/* SPDX-License-Identifier: GPL-2.0 *//* * Copyright (c) 2021 Hannes Reinecke, SUSE Software Solutions */
#ifndef _NVME_AUTH_H#define _NVME_AUTH_H
#include <crypto/kpp.h>#include <crypto/sha2.h>
struct nvme_dhchap_key { size_t len; u8 hash; u8 key[] __counted_by(len);};
u32 nvme_auth_get_seqnum(void);const char *nvme_auth_dhgroup_name(u8 dhgroup_id);const char *nvme_auth_dhgroup_kpp(u8 dhgroup_id);u8 nvme_auth_dhgroup_id(const char *dhgroup_name);
const char *nvme_auth_hmac_name(u8 hmac_id);size_t nvme_auth_hmac_hash_len(u8 hmac_id);u8 nvme_auth_hmac_id(const char *hmac_name);struct nvme_auth_hmac_ctx { u8 hmac_id; union { struct hmac_sha256_ctx sha256; struct hmac_sha384_ctx sha384; struct hmac_sha512_ctx sha512; };};int nvme_auth_hmac_init(struct nvme_auth_hmac_ctx *hmac, u8 hmac_id, const u8 *key, size_t key_len);void nvme_auth_hmac_update(struct nvme_auth_hmac_ctx *hmac, const u8 *data, size_t data_len);void nvme_auth_hmac_final(struct nvme_auth_hmac_ctx *hmac, u8 *out);
u32 nvme_auth_key_struct_size(u32 key_len);struct nvme_dhchap_key *nvme_auth_extract_key(const char *secret, u8 key_hash);void nvme_auth_free_key(struct nvme_dhchap_key *key);struct nvme_dhchap_key *nvme_auth_alloc_key(u32 len, u8 hash);struct nvme_dhchap_key *nvme_auth_transform_key( const struct nvme_dhchap_key *key, const char *nqn);int nvme_auth_parse_key(const char *secret, struct nvme_dhchap_key **ret_key);int nvme_auth_augmented_challenge(u8 hmac_id, const u8 *skey, size_t skey_len, const u8 *challenge, u8 *aug, size_t hlen);int nvme_auth_gen_privkey(struct crypto_kpp *dh_tfm, u8 dh_gid);int nvme_auth_gen_pubkey(struct crypto_kpp *dh_tfm, u8 *host_key, size_t host_key_len);int nvme_auth_gen_session_key(struct crypto_kpp *dh_tfm, const u8 *public_key, size_t public_key_len, u8 *sess_key, size_t sess_key_len, u8 hash_id);int nvme_auth_generate_psk(u8 hmac_id, const u8 *skey, size_t skey_len, const u8 *c1, const u8 *c2, size_t hash_len, u8 **ret_psk, size_t *ret_len);int nvme_auth_generate_digest(u8 hmac_id, const u8 *psk, size_t psk_len, const char *subsysnqn, const char *hostnqn, char **ret_digest);int nvme_auth_derive_tls_psk(int hmac_id, const u8 *psk, size_t psk_len, const char *psk_digest, u8 **ret_psk);
#endif /* _NVME_AUTH_H */