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authorYehuda Sadeh <yehuda@hq.newdream.net>2010-04-07 02:14:15 +0400
committerSage Weil <sage@newdream.net>2010-10-21 02:37:28 +0400
commit3d14c5d2b6e15c21d8e5467dc62d33127c23a644 (patch)
tree7d123c47847df9d1e865b6b78dc7da3fe739b704 /net/ceph/auth_x_protocol.h
parentae1533b62b3369e6ae32338f4a77d64d0e88f676 (diff)
downloadlinux-3d14c5d2b6e15c21d8e5467dc62d33127c23a644.tar.xz
ceph: factor out libceph from Ceph file system
This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'net/ceph/auth_x_protocol.h')
-rw-r--r--net/ceph/auth_x_protocol.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/net/ceph/auth_x_protocol.h b/net/ceph/auth_x_protocol.h
new file mode 100644
index 000000000000..671d30576c4f
--- /dev/null
+++ b/net/ceph/auth_x_protocol.h
@@ -0,0 +1,90 @@
+#ifndef __FS_CEPH_AUTH_X_PROTOCOL
+#define __FS_CEPH_AUTH_X_PROTOCOL
+
+#define CEPHX_GET_AUTH_SESSION_KEY 0x0100
+#define CEPHX_GET_PRINCIPAL_SESSION_KEY 0x0200
+#define CEPHX_GET_ROTATING_KEY 0x0400
+
+/* common bits */
+struct ceph_x_ticket_blob {
+ __u8 struct_v;
+ __le64 secret_id;
+ __le32 blob_len;
+ char blob[];
+} __attribute__ ((packed));
+
+
+/* common request/reply headers */
+struct ceph_x_request_header {
+ __le16 op;
+} __attribute__ ((packed));
+
+struct ceph_x_reply_header {
+ __le16 op;
+ __le32 result;
+} __attribute__ ((packed));
+
+
+/* authenticate handshake */
+
+/* initial hello (no reply header) */
+struct ceph_x_server_challenge {
+ __u8 struct_v;
+ __le64 server_challenge;
+} __attribute__ ((packed));
+
+struct ceph_x_authenticate {
+ __u8 struct_v;
+ __le64 client_challenge;
+ __le64 key;
+ /* ticket blob */
+} __attribute__ ((packed));
+
+struct ceph_x_service_ticket_request {
+ __u8 struct_v;
+ __le32 keys;
+} __attribute__ ((packed));
+
+struct ceph_x_challenge_blob {
+ __le64 server_challenge;
+ __le64 client_challenge;
+} __attribute__ ((packed));
+
+
+
+/* authorize handshake */
+
+/*
+ * The authorizer consists of two pieces:
+ * a - service id, ticket blob
+ * b - encrypted with session key
+ */
+struct ceph_x_authorize_a {
+ __u8 struct_v;
+ __le64 global_id;
+ __le32 service_id;
+ struct ceph_x_ticket_blob ticket_blob;
+} __attribute__ ((packed));
+
+struct ceph_x_authorize_b {
+ __u8 struct_v;
+ __le64 nonce;
+} __attribute__ ((packed));
+
+struct ceph_x_authorize_reply {
+ __u8 struct_v;
+ __le64 nonce_plus_one;
+} __attribute__ ((packed));
+
+
+/*
+ * encyption bundle
+ */
+#define CEPHX_ENC_MAGIC 0xff009cad8826aa55ull
+
+struct ceph_x_encrypt_header {
+ __u8 struct_v;
+ __le64 magic;
+} __attribute__ ((packed));
+
+#endif