1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __FS_CEPH_AUTH_X_PROTOCOL
3 #define __FS_CEPH_AUTH_X_PROTOCOL
4
5 #define CEPHX_GET_AUTH_SESSION_KEY 0x0100
6 #define CEPHX_GET_PRINCIPAL_SESSION_KEY 0x0200
7 #define CEPHX_GET_ROTATING_KEY 0x0400
8
9 /* common bits */
10 struct ceph_x_ticket_blob {
11 __u8 struct_v;
12 __le64 secret_id;
13 __le32 blob_len;
14 char blob[];
15 } __attribute__ ((packed));
16
17
18 /* common request/reply headers */
19 struct ceph_x_request_header {
20 __le16 op;
21 } __attribute__ ((packed));
22
23 struct ceph_x_reply_header {
24 __le16 op;
25 __le32 result;
26 } __attribute__ ((packed));
27
28
29 /* authenticate handshake */
30
31 /* initial hello (no reply header) */
32 struct ceph_x_server_challenge {
33 __u8 struct_v;
34 __le64 server_challenge;
35 } __attribute__ ((packed));
36
37 struct ceph_x_authenticate {
38 __u8 struct_v;
39 __le64 client_challenge;
40 __le64 key;
41 /* ticket blob */
42 } __attribute__ ((packed));
43
44 struct ceph_x_service_ticket_request {
45 __u8 struct_v;
46 __le32 keys;
47 } __attribute__ ((packed));
48
49 struct ceph_x_challenge_blob {
50 __le64 server_challenge;
51 __le64 client_challenge;
52 } __attribute__ ((packed));
53
54
55
56 /* authorize handshake */
57
58 /*
59 * The authorizer consists of two pieces:
60 * a - service id, ticket blob
61 * b - encrypted with session key
62 */
63 struct ceph_x_authorize_a {
64 __u8 struct_v;
65 __le64 global_id;
66 __le32 service_id;
67 struct ceph_x_ticket_blob ticket_blob;
68 } __attribute__ ((packed));
69
70 struct ceph_x_authorize_b {
71 __u8 struct_v;
72 __le64 nonce;
73 __u8 have_challenge;
74 __le64 server_challenge_plus_one;
75 } __attribute__ ((packed));
76
77 struct ceph_x_authorize_challenge {
78 __u8 struct_v;
79 __le64 server_challenge;
80 } __attribute__ ((packed));
81
82 struct ceph_x_authorize_reply {
83 __u8 struct_v;
84 __le64 nonce_plus_one;
85 } __attribute__ ((packed));
86
87
88 /*
89 * encyption bundle
90 */
91 #define CEPHX_ENC_MAGIC 0xff009cad8826aa55ull
92
93 struct ceph_x_encrypt_header {
94 __u8 struct_v;
95 __le64 magic;
96 } __attribute__ ((packed));
97
98 #endif
99
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