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auth_x_protocol.h
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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
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