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 /* old_ticket blob */
42 /* nautilus+: other_keys */
43 } __attribute__ ((packed));
44
45 struct ceph_x_service_ticket_request {
46 __u8 struct_v;
47 __le32 keys;
48 } __attribute__ ((packed));
49
50 struct ceph_x_challenge_blob {
51 __le64 server_challenge;
52 __le64 client_challenge;
53 } __attribute__ ((packed));
54
55
56
57 /* authorize handshake */
58
59 /*
60 * The authorizer consists of two pieces:
61 * a - service id, ticket blob
62 * b - encrypted with session key
63 */
64 struct ceph_x_authorize_a {
65 __u8 struct_v;
66 __le64 global_id;
67 __le32 service_id;
68 struct ceph_x_ticket_blob ticket_blob;
69 } __attribute__ ((packed));
70
71 struct ceph_x_authorize_b {
72 __u8 struct_v;
73 __le64 nonce;
74 __u8 have_challenge;
75 __le64 server_challenge_plus_one;
76 } __attribute__ ((packed));
77
78 struct ceph_x_authorize_challenge {
79 __u8 struct_v;
80 __le64 server_challenge;
81 } __attribute__ ((packed));
82
83 struct ceph_x_authorize_reply {
84 __u8 struct_v;
85 __le64 nonce_plus_one;
86 } __attribute__ ((packed));
87
88
89 /*
90 * encryption bundle
91 */
92 #define CEPHX_ENC_MAGIC 0xff009cad8826aa55ull
93
94 struct ceph_x_encrypt_header {
95 __u8 struct_v;
96 __le64 magic;
97 } __attribute__ ((packed));
98
99 #endif
100
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