xref: /openbmc/linux/net/ceph/auth_x_protocol.h (revision b3fd7368f8f60bc9a7ffc2a5311db5f4dbd42180)
1  #ifndef __FS_CEPH_AUTH_X_PROTOCOL
2  #define __FS_CEPH_AUTH_X_PROTOCOL
3  
4  #define CEPHX_GET_AUTH_SESSION_KEY      0x0100
5  #define CEPHX_GET_PRINCIPAL_SESSION_KEY 0x0200
6  #define CEPHX_GET_ROTATING_KEY          0x0400
7  
8  /* common bits */
9  struct ceph_x_ticket_blob {
10  	__u8 struct_v;
11  	__le64 secret_id;
12  	__le32 blob_len;
13  	char blob[];
14  } __attribute__ ((packed));
15  
16  
17  /* common request/reply headers */
18  struct ceph_x_request_header {
19  	__le16 op;
20  } __attribute__ ((packed));
21  
22  struct ceph_x_reply_header {
23  	__le16 op;
24  	__le32 result;
25  } __attribute__ ((packed));
26  
27  
28  /* authenticate handshake */
29  
30  /* initial hello (no reply header) */
31  struct ceph_x_server_challenge {
32  	__u8 struct_v;
33  	__le64 server_challenge;
34  } __attribute__ ((packed));
35  
36  struct ceph_x_authenticate {
37  	__u8 struct_v;
38  	__le64 client_challenge;
39  	__le64 key;
40  	/* ticket blob */
41  } __attribute__ ((packed));
42  
43  struct ceph_x_service_ticket_request {
44  	__u8 struct_v;
45  	__le32 keys;
46  } __attribute__ ((packed));
47  
48  struct ceph_x_challenge_blob {
49  	__le64 server_challenge;
50  	__le64 client_challenge;
51  } __attribute__ ((packed));
52  
53  
54  
55  /* authorize handshake */
56  
57  /*
58   * The authorizer consists of two pieces:
59   *  a - service id, ticket blob
60   *  b - encrypted with session key
61   */
62  struct ceph_x_authorize_a {
63  	__u8 struct_v;
64  	__le64 global_id;
65  	__le32 service_id;
66  	struct ceph_x_ticket_blob ticket_blob;
67  } __attribute__ ((packed));
68  
69  struct ceph_x_authorize_b {
70  	__u8 struct_v;
71  	__le64 nonce;
72  } __attribute__ ((packed));
73  
74  struct ceph_x_authorize_reply {
75  	__u8 struct_v;
76  	__le64 nonce_plus_one;
77  } __attribute__ ((packed));
78  
79  
80  /*
81   * encyption bundle
82   */
83  #define CEPHX_ENC_MAGIC 0xff009cad8826aa55ull
84  
85  struct ceph_x_encrypt_header {
86  	__u8 struct_v;
87  	__le64 magic;
88  } __attribute__ ((packed));
89  
90  #endif
91