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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/net/ceph/auth_x_protocol.h
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/* SPDX-License-Identifier: GPL-2.0 */

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#ifndef __FS_CEPH_AUTH_X_PROTOCOL

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#define __FS_CEPH_AUTH_X_PROTOCOL

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#define CEPHX_GET_AUTH_SESSION_KEY      0x0100

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#define CEPHX_GET_PRINCIPAL_SESSION_KEY 0x0200

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#define CEPHX_GET_ROTATING_KEY          0x0400

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/* common bits */

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struct ceph_x_ticket_blob {

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	__u8 struct_v;

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	__le64 secret_id;

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	__le32 blob_len;

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	char blob[];

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} __attribute__ ((packed));

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/* common request/reply headers */

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struct ceph_x_request_header {

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	__le16 op;

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} __attribute__ ((packed));

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struct ceph_x_reply_header {

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	__le16 op;

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	__le32 result;

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} __attribute__ ((packed));

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/* authenticate handshake */

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/* initial hello (no reply header) */

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struct ceph_x_server_challenge {

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	__u8 struct_v;

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	__le64 server_challenge;

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} __attribute__ ((packed));

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struct ceph_x_authenticate {

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	__u8 struct_v;

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	__le64 client_challenge;

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	__le64 key;

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	/* old_ticket blob */

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	/* nautilus+: other_keys */

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} __attribute__ ((packed));

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struct ceph_x_service_ticket_request {

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	__u8 struct_v;

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	__le32 keys;

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} __attribute__ ((packed));

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struct ceph_x_challenge_blob {

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	__le64 server_challenge;

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	__le64 client_challenge;

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} __attribute__ ((packed));

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/* authorize handshake */

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/*

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 * The authorizer consists of two pieces:

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 *  a - service id, ticket blob

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 *  b - encrypted with session key

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 */

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struct ceph_x_authorize_a {

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	__u8 struct_v;

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	__le64 global_id;

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	__le32 service_id;

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	struct ceph_x_ticket_blob ticket_blob;

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} __attribute__ ((packed));

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struct ceph_x_authorize_b {

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	__u8 struct_v;

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	__le64 nonce;

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	__u8 have_challenge;

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	__le64 server_challenge_plus_one;

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} __attribute__ ((packed));

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struct ceph_x_authorize_challenge {

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	__u8 struct_v;

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	__le64 server_challenge;

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} __attribute__ ((packed));

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struct ceph_x_authorize_reply {

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	__u8 struct_v;

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	__le64 nonce_plus_one;

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} __attribute__ ((packed));

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/*

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 * encryption bundle

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 */

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#define CEPHX_ENC_MAGIC 0xff009cad8826aa55ull

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struct ceph_x_encrypt_header {

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	__u8 struct_v;

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	__le64 magic;

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} __attribute__ ((packed));

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#endif

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