1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Copyright (c) 2021 Hannes Reinecke, SUSE Software Solutions |
4 | */ |
5 | |
6 | #ifndef _NVME_AUTH_H |
7 | #define _NVME_AUTH_H |
8 | |
9 | #include <crypto/kpp.h> |
10 | |
11 | struct nvme_dhchap_key { |
12 | size_t len; |
13 | u8 hash; |
14 | u8 key[]; |
15 | }; |
16 | |
17 | u32 nvme_auth_get_seqnum(void); |
18 | const char *nvme_auth_dhgroup_name(u8 dhgroup_id); |
19 | const char *nvme_auth_dhgroup_kpp(u8 dhgroup_id); |
20 | u8 nvme_auth_dhgroup_id(const char *dhgroup_name); |
21 | |
22 | const char *nvme_auth_hmac_name(u8 hmac_id); |
23 | const char *nvme_auth_digest_name(u8 hmac_id); |
24 | size_t nvme_auth_hmac_hash_len(u8 hmac_id); |
25 | u8 nvme_auth_hmac_id(const char *hmac_name); |
26 | |
27 | u32 nvme_auth_key_struct_size(u32 key_len); |
28 | struct nvme_dhchap_key *(unsigned char *secret, |
29 | u8 key_hash); |
30 | void nvme_auth_free_key(struct nvme_dhchap_key *key); |
31 | struct nvme_dhchap_key *nvme_auth_alloc_key(u32 len, u8 hash); |
32 | struct nvme_dhchap_key *nvme_auth_transform_key( |
33 | struct nvme_dhchap_key *key, char *nqn); |
34 | int nvme_auth_generate_key(u8 *secret, struct nvme_dhchap_key **ret_key); |
35 | int nvme_auth_augmented_challenge(u8 hmac_id, u8 *skey, size_t skey_len, |
36 | u8 *challenge, u8 *aug, size_t hlen); |
37 | int nvme_auth_gen_privkey(struct crypto_kpp *dh_tfm, u8 dh_gid); |
38 | int nvme_auth_gen_pubkey(struct crypto_kpp *dh_tfm, |
39 | u8 *host_key, size_t host_key_len); |
40 | int 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 | |