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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Copyright (c) 2021 Hannes Reinecke, SUSE Software Solutions4 */5 6#ifndef _NVME_AUTH_H7#define _NVME_AUTH_H8 9#include <crypto/kpp.h>10 11struct nvme_dhchap_key {12 size_t len;13 u8 hash;14 u8 key[];15};16 17u32 nvme_auth_get_seqnum(void);18const char *nvme_auth_dhgroup_name(u8 dhgroup_id);19const char *nvme_auth_dhgroup_kpp(u8 dhgroup_id);20u8 nvme_auth_dhgroup_id(const char *dhgroup_name);21 22const char *nvme_auth_hmac_name(u8 hmac_id);23const char *nvme_auth_digest_name(u8 hmac_id);24size_t nvme_auth_hmac_hash_len(u8 hmac_id);25u8 nvme_auth_hmac_id(const char *hmac_name);26 27u32 nvme_auth_key_struct_size(u32 key_len);28struct nvme_dhchap_key *nvme_auth_extract_key(unsigned char *secret,29 u8 key_hash);30void nvme_auth_free_key(struct nvme_dhchap_key *key);31struct nvme_dhchap_key *nvme_auth_alloc_key(u32 len, u8 hash);32struct nvme_dhchap_key *nvme_auth_transform_key(33 struct nvme_dhchap_key *key, char *nqn);34int nvme_auth_generate_key(u8 *secret, struct nvme_dhchap_key **ret_key);35int nvme_auth_augmented_challenge(u8 hmac_id, u8 *skey, size_t skey_len,36 u8 *challenge, u8 *aug, size_t hlen);37int nvme_auth_gen_privkey(struct crypto_kpp *dh_tfm, u8 dh_gid);38int nvme_auth_gen_pubkey(struct crypto_kpp *dh_tfm,39 u8 *host_key, size_t host_key_len);40int nvme_auth_gen_shared_secret(struct crypto_kpp *dh_tfm,41 u8 *ctrl_key, size_t ctrl_key_len,42 u8 *sess_key, size_t sess_key_len);43 44#endif /* _NVME_AUTH_H */45