net/ceph/auth_x_protocol.h

   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  * encyption 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