1 files changed, 51 insertions, 0 deletions
diff --git a/include/linux/nvme-auth.h b/include/linux/nvme-auth.h
new file mode 100644
index 000000000000..60e069a6757f
--- /dev/null
+++ b/include/linux/nvme-auth.h
@@ -0,0 +1,51 @@
+/* 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>
+
+struct nvme_dhchap_key {
+	size_t len;
+	u8 hash;
+	u8 key[];
+};
+
+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);
+const char *nvme_auth_digest_name(u8 hmac_id);
+size_t nvme_auth_hmac_hash_len(u8 hmac_id);
+u8 nvme_auth_hmac_id(const char *hmac_name);
+
+u32 nvme_auth_key_struct_size(u32 key_len);
+struct nvme_dhchap_key *nvme_auth_extract_key(unsigned 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(
+				struct nvme_dhchap_key *key, char *nqn);
+int nvme_auth_generate_key(u8 *secret, struct nvme_dhchap_key **ret_key);
+int nvme_auth_augmented_challenge(u8 hmac_id, u8 *skey, size_t skey_len,
+				  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_shared_secret(struct crypto_kpp *dh_tfm,
+				u8 *ctrl_key, size_t ctrl_key_len,
+				u8 *sess_key, size_t sess_key_len);
+int nvme_auth_generate_psk(u8 hmac_id, u8 *skey, size_t skey_len,
+			   u8 *c1, u8 *c2, size_t hash_len,
+			   u8 **ret_psk, size_t *ret_len);
+int nvme_auth_generate_digest(u8 hmac_id, u8 *psk, size_t psk_len,
+		char *subsysnqn, char *hostnqn, u8 **ret_digest);
+int nvme_auth_derive_tls_psk(int hmac_id, u8 *psk, size_t psk_len,
+		u8 *psk_digest, u8 **ret_psk);
+
+#endif /* _NVME_AUTH_H */