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-rw-r--r--fs/ceph/ceph_fs.h728
1 files changed, 0 insertions, 728 deletions
diff --git a/fs/ceph/ceph_fs.h b/fs/ceph/ceph_fs.h
deleted file mode 100644
index d5619ac86711..000000000000
--- a/fs/ceph/ceph_fs.h
+++ /dev/null
@@ -1,728 +0,0 @@
-/*
- * ceph_fs.h - Ceph constants and data types to share between kernel and
- * user space.
- *
- * Most types in this file are defined as little-endian, and are
- * primarily intended to describe data structures that pass over the
- * wire or that are stored on disk.
- *
- * LGPL2
- */
-
-#ifndef CEPH_FS_H
-#define CEPH_FS_H
-
-#include "msgr.h"
-#include "rados.h"
-
-/*
- * subprotocol versions. when specific messages types or high-level
- * protocols change, bump the affected components. we keep rev
- * internal cluster protocols separately from the public,
- * client-facing protocol.
- */
-#define CEPH_OSD_PROTOCOL 8 /* cluster internal */
-#define CEPH_MDS_PROTOCOL 12 /* cluster internal */
-#define CEPH_MON_PROTOCOL 5 /* cluster internal */
-#define CEPH_OSDC_PROTOCOL 24 /* server/client */
-#define CEPH_MDSC_PROTOCOL 32 /* server/client */
-#define CEPH_MONC_PROTOCOL 15 /* server/client */
-
-
-#define CEPH_INO_ROOT 1
-#define CEPH_INO_CEPH 2 /* hidden .ceph dir */
-
-/* arbitrary limit on max # of monitors (cluster of 3 is typical) */
-#define CEPH_MAX_MON 31
-
-
-/*
- * feature bits
- */
-#define CEPH_FEATURE_UID (1<<0)
-#define CEPH_FEATURE_NOSRCADDR (1<<1)
-#define CEPH_FEATURE_MONCLOCKCHECK (1<<2)
-#define CEPH_FEATURE_FLOCK (1<<3)
-
-
-/*
- * ceph_file_layout - describe data layout for a file/inode
- */
-struct ceph_file_layout {
- /* file -> object mapping */
- __le32 fl_stripe_unit; /* stripe unit, in bytes. must be multiple
- of page size. */
- __le32 fl_stripe_count; /* over this many objects */
- __le32 fl_object_size; /* until objects are this big, then move to
- new objects */
- __le32 fl_cas_hash; /* 0 = none; 1 = sha256 */
-
- /* pg -> disk layout */
- __le32 fl_object_stripe_unit; /* for per-object parity, if any */
-
- /* object -> pg layout */
- __le32 fl_pg_preferred; /* preferred primary for pg (-1 for none) */
- __le32 fl_pg_pool; /* namespace, crush ruleset, rep level */
-} __attribute__ ((packed));
-
-#define CEPH_MIN_STRIPE_UNIT 65536
-
-int ceph_file_layout_is_valid(const struct ceph_file_layout *layout);
-
-
-/* crypto algorithms */
-#define CEPH_CRYPTO_NONE 0x0
-#define CEPH_CRYPTO_AES 0x1
-
-#define CEPH_AES_IV "cephsageyudagreg"
-
-/* security/authentication protocols */
-#define CEPH_AUTH_UNKNOWN 0x0
-#define CEPH_AUTH_NONE 0x1
-#define CEPH_AUTH_CEPHX 0x2
-
-#define CEPH_AUTH_UID_DEFAULT ((__u64) -1)
-
-
-/*********************************************
- * message layer
- */
-
-/*
- * message types
- */
-
-/* misc */
-#define CEPH_MSG_SHUTDOWN 1
-#define CEPH_MSG_PING 2
-
-/* client <-> monitor */
-#define CEPH_MSG_MON_MAP 4
-#define CEPH_MSG_MON_GET_MAP 5
-#define CEPH_MSG_STATFS 13
-#define CEPH_MSG_STATFS_REPLY 14
-#define CEPH_MSG_MON_SUBSCRIBE 15
-#define CEPH_MSG_MON_SUBSCRIBE_ACK 16
-#define CEPH_MSG_AUTH 17
-#define CEPH_MSG_AUTH_REPLY 18
-
-/* client <-> mds */
-#define CEPH_MSG_MDS_MAP 21
-
-#define CEPH_MSG_CLIENT_SESSION 22
-#define CEPH_MSG_CLIENT_RECONNECT 23
-
-#define CEPH_MSG_CLIENT_REQUEST 24
-#define CEPH_MSG_CLIENT_REQUEST_FORWARD 25
-#define CEPH_MSG_CLIENT_REPLY 26
-#define CEPH_MSG_CLIENT_CAPS 0x310
-#define CEPH_MSG_CLIENT_LEASE 0x311
-#define CEPH_MSG_CLIENT_SNAP 0x312
-#define CEPH_MSG_CLIENT_CAPRELEASE 0x313
-
-/* pool ops */
-#define CEPH_MSG_POOLOP_REPLY 48
-#define CEPH_MSG_POOLOP 49
-
-
-/* osd */
-#define CEPH_MSG_OSD_MAP 41
-#define CEPH_MSG_OSD_OP 42
-#define CEPH_MSG_OSD_OPREPLY 43
-
-/* pool operations */
-enum {
- POOL_OP_CREATE = 0x01,
- POOL_OP_DELETE = 0x02,
- POOL_OP_AUID_CHANGE = 0x03,
- POOL_OP_CREATE_SNAP = 0x11,
- POOL_OP_DELETE_SNAP = 0x12,
- POOL_OP_CREATE_UNMANAGED_SNAP = 0x21,
- POOL_OP_DELETE_UNMANAGED_SNAP = 0x22,
-};
-
-struct ceph_mon_request_header {
- __le64 have_version;
- __le16 session_mon;
- __le64 session_mon_tid;
-} __attribute__ ((packed));
-
-struct ceph_mon_statfs {
- struct ceph_mon_request_header monhdr;
- struct ceph_fsid fsid;
-} __attribute__ ((packed));
-
-struct ceph_statfs {
- __le64 kb, kb_used, kb_avail;
- __le64 num_objects;
-} __attribute__ ((packed));
-
-struct ceph_mon_statfs_reply {
- struct ceph_fsid fsid;
- __le64 version;
- struct ceph_statfs st;
-} __attribute__ ((packed));
-
-const char *ceph_pool_op_name(int op);
-
-struct ceph_mon_poolop {
- struct ceph_mon_request_header monhdr;
- struct ceph_fsid fsid;
- __le32 pool;
- __le32 op;
- __le64 auid;
- __le64 snapid;
- __le32 name_len;
-} __attribute__ ((packed));
-
-struct ceph_mon_poolop_reply {
- struct ceph_mon_request_header monhdr;
- struct ceph_fsid fsid;
- __le32 reply_code;
- __le32 epoch;
- char has_data;
- char data[0];
-} __attribute__ ((packed));
-
-struct ceph_mon_unmanaged_snap {
- __le64 snapid;
-} __attribute__ ((packed));
-
-struct ceph_osd_getmap {
- struct ceph_mon_request_header monhdr;
- struct ceph_fsid fsid;
- __le32 start;
-} __attribute__ ((packed));
-
-struct ceph_mds_getmap {
- struct ceph_mon_request_header monhdr;
- struct ceph_fsid fsid;
-} __attribute__ ((packed));
-
-struct ceph_client_mount {
- struct ceph_mon_request_header monhdr;
-} __attribute__ ((packed));
-
-struct ceph_mon_subscribe_item {
- __le64 have_version; __le64 have;
- __u8 onetime;
-} __attribute__ ((packed));
-
-struct ceph_mon_subscribe_ack {
- __le32 duration; /* seconds */
- struct ceph_fsid fsid;
-} __attribute__ ((packed));
-
-/*
- * mds states
- * > 0 -> in
- * <= 0 -> out
- */
-#define CEPH_MDS_STATE_DNE 0 /* down, does not exist. */
-#define CEPH_MDS_STATE_STOPPED -1 /* down, once existed, but no subtrees.
- empty log. */
-#define CEPH_MDS_STATE_BOOT -4 /* up, boot announcement. */
-#define CEPH_MDS_STATE_STANDBY -5 /* up, idle. waiting for assignment. */
-#define CEPH_MDS_STATE_CREATING -6 /* up, creating MDS instance. */
-#define CEPH_MDS_STATE_STARTING -7 /* up, starting previously stopped mds */
-#define CEPH_MDS_STATE_STANDBY_REPLAY -8 /* up, tailing active node's journal */
-
-#define CEPH_MDS_STATE_REPLAY 8 /* up, replaying journal. */
-#define CEPH_MDS_STATE_RESOLVE 9 /* up, disambiguating distributed
- operations (import, rename, etc.) */
-#define CEPH_MDS_STATE_RECONNECT 10 /* up, reconnect to clients */
-#define CEPH_MDS_STATE_REJOIN 11 /* up, rejoining distributed cache */
-#define CEPH_MDS_STATE_CLIENTREPLAY 12 /* up, replaying client operations */
-#define CEPH_MDS_STATE_ACTIVE 13 /* up, active */
-#define CEPH_MDS_STATE_STOPPING 14 /* up, but exporting metadata */
-
-extern const char *ceph_mds_state_name(int s);
-
-
-/*
- * metadata lock types.
- * - these are bitmasks.. we can compose them
- * - they also define the lock ordering by the MDS
- * - a few of these are internal to the mds
- */
-#define CEPH_LOCK_DVERSION 1
-#define CEPH_LOCK_DN 2
-#define CEPH_LOCK_ISNAP 16
-#define CEPH_LOCK_IVERSION 32 /* mds internal */
-#define CEPH_LOCK_IFILE 64
-#define CEPH_LOCK_IAUTH 128
-#define CEPH_LOCK_ILINK 256
-#define CEPH_LOCK_IDFT 512 /* dir frag tree */
-#define CEPH_LOCK_INEST 1024 /* mds internal */
-#define CEPH_LOCK_IXATTR 2048
-#define CEPH_LOCK_IFLOCK 4096 /* advisory file locks */
-#define CEPH_LOCK_INO 8192 /* immutable inode bits; not a lock */
-
-/* client_session ops */
-enum {
- CEPH_SESSION_REQUEST_OPEN,
- CEPH_SESSION_OPEN,
- CEPH_SESSION_REQUEST_CLOSE,
- CEPH_SESSION_CLOSE,
- CEPH_SESSION_REQUEST_RENEWCAPS,
- CEPH_SESSION_RENEWCAPS,
- CEPH_SESSION_STALE,
- CEPH_SESSION_RECALL_STATE,
-};
-
-extern const char *ceph_session_op_name(int op);
-
-struct ceph_mds_session_head {
- __le32 op;
- __le64 seq;
- struct ceph_timespec stamp;
- __le32 max_caps, max_leases;
-} __attribute__ ((packed));
-
-/* client_request */
-/*
- * metadata ops.
- * & 0x001000 -> write op
- * & 0x010000 -> follow symlink (e.g. stat(), not lstat()).
- & & 0x100000 -> use weird ino/path trace
- */
-#define CEPH_MDS_OP_WRITE 0x001000
-enum {
- CEPH_MDS_OP_LOOKUP = 0x00100,
- CEPH_MDS_OP_GETATTR = 0x00101,
- CEPH_MDS_OP_LOOKUPHASH = 0x00102,
- CEPH_MDS_OP_LOOKUPPARENT = 0x00103,
-
- CEPH_MDS_OP_SETXATTR = 0x01105,
- CEPH_MDS_OP_RMXATTR = 0x01106,
- CEPH_MDS_OP_SETLAYOUT = 0x01107,
- CEPH_MDS_OP_SETATTR = 0x01108,
- CEPH_MDS_OP_SETFILELOCK= 0x01109,
- CEPH_MDS_OP_GETFILELOCK= 0x00110,
-
- CEPH_MDS_OP_MKNOD = 0x01201,
- CEPH_MDS_OP_LINK = 0x01202,
- CEPH_MDS_OP_UNLINK = 0x01203,
- CEPH_MDS_OP_RENAME = 0x01204,
- CEPH_MDS_OP_MKDIR = 0x01220,
- CEPH_MDS_OP_RMDIR = 0x01221,
- CEPH_MDS_OP_SYMLINK = 0x01222,
-
- CEPH_MDS_OP_CREATE = 0x01301,
- CEPH_MDS_OP_OPEN = 0x00302,
- CEPH_MDS_OP_READDIR = 0x00305,
-
- CEPH_MDS_OP_LOOKUPSNAP = 0x00400,
- CEPH_MDS_OP_MKSNAP = 0x01400,
- CEPH_MDS_OP_RMSNAP = 0x01401,
- CEPH_MDS_OP_LSSNAP = 0x00402,
-};
-
-extern const char *ceph_mds_op_name(int op);
-
-
-#define CEPH_SETATTR_MODE 1
-#define CEPH_SETATTR_UID 2
-#define CEPH_SETATTR_GID 4
-#define CEPH_SETATTR_MTIME 8
-#define CEPH_SETATTR_ATIME 16
-#define CEPH_SETATTR_SIZE 32
-#define CEPH_SETATTR_CTIME 64
-
-union ceph_mds_request_args {
- struct {
- __le32 mask; /* CEPH_CAP_* */
- } __attribute__ ((packed)) getattr;
- struct {
- __le32 mode;
- __le32 uid;
- __le32 gid;
- struct ceph_timespec mtime;
- struct ceph_timespec atime;
- __le64 size, old_size; /* old_size needed by truncate */
- __le32 mask; /* CEPH_SETATTR_* */
- } __attribute__ ((packed)) setattr;
- struct {
- __le32 frag; /* which dir fragment */
- __le32 max_entries; /* how many dentries to grab */
- __le32 max_bytes;
- } __attribute__ ((packed)) readdir;
- struct {
- __le32 mode;
- __le32 rdev;
- } __attribute__ ((packed)) mknod;
- struct {
- __le32 mode;
- } __attribute__ ((packed)) mkdir;
- struct {
- __le32 flags;
- __le32 mode;
- __le32 stripe_unit; /* layout for newly created file */
- __le32 stripe_count; /* ... */
- __le32 object_size;
- __le32 file_replication;
- __le32 preferred;
- } __attribute__ ((packed)) open;
- struct {
- __le32 flags;
- } __attribute__ ((packed)) setxattr;
- struct {
- struct ceph_file_layout layout;
- } __attribute__ ((packed)) setlayout;
- struct {
- __u8 rule; /* currently fcntl or flock */
- __u8 type; /* shared, exclusive, remove*/
- __le64 pid; /* process id requesting the lock */
- __le64 pid_namespace;
- __le64 start; /* initial location to lock */
- __le64 length; /* num bytes to lock from start */
- __u8 wait; /* will caller wait for lock to become available? */
- } __attribute__ ((packed)) filelock_change;
-} __attribute__ ((packed));
-
-#define CEPH_MDS_FLAG_REPLAY 1 /* this is a replayed op */
-#define CEPH_MDS_FLAG_WANT_DENTRY 2 /* want dentry in reply */
-
-struct ceph_mds_request_head {
- __le64 oldest_client_tid;
- __le32 mdsmap_epoch; /* on client */
- __le32 flags; /* CEPH_MDS_FLAG_* */
- __u8 num_retry, num_fwd; /* count retry, fwd attempts */
- __le16 num_releases; /* # include cap/lease release records */
- __le32 op; /* mds op code */
- __le32 caller_uid, caller_gid;
- __le64 ino; /* use this ino for openc, mkdir, mknod,
- etc. (if replaying) */
- union ceph_mds_request_args args;
-} __attribute__ ((packed));
-
-/* cap/lease release record */
-struct ceph_mds_request_release {
- __le64 ino, cap_id; /* ino and unique cap id */
- __le32 caps, wanted; /* new issued, wanted */
- __le32 seq, issue_seq, mseq;
- __le32 dname_seq; /* if releasing a dentry lease, a */
- __le32 dname_len; /* string follows. */
-} __attribute__ ((packed));
-
-/* client reply */
-struct ceph_mds_reply_head {
- __le32 op;
- __le32 result;
- __le32 mdsmap_epoch;
- __u8 safe; /* true if committed to disk */
- __u8 is_dentry, is_target; /* true if dentry, target inode records
- are included with reply */
-} __attribute__ ((packed));
-
-/* one for each node split */
-struct ceph_frag_tree_split {
- __le32 frag; /* this frag splits... */
- __le32 by; /* ...by this many bits */
-} __attribute__ ((packed));
-
-struct ceph_frag_tree_head {
- __le32 nsplits; /* num ceph_frag_tree_split records */
- struct ceph_frag_tree_split splits[];
-} __attribute__ ((packed));
-
-/* capability issue, for bundling with mds reply */
-struct ceph_mds_reply_cap {
- __le32 caps, wanted; /* caps issued, wanted */
- __le64 cap_id;
- __le32 seq, mseq;
- __le64 realm; /* snap realm */
- __u8 flags; /* CEPH_CAP_FLAG_* */
-} __attribute__ ((packed));
-
-#define CEPH_CAP_FLAG_AUTH 1 /* cap is issued by auth mds */
-
-/* inode record, for bundling with mds reply */
-struct ceph_mds_reply_inode {
- __le64 ino;
- __le64 snapid;
- __le32 rdev;
- __le64 version; /* inode version */
- __le64 xattr_version; /* version for xattr blob */
- struct ceph_mds_reply_cap cap; /* caps issued for this inode */
- struct ceph_file_layout layout;
- struct ceph_timespec ctime, mtime, atime;
- __le32 time_warp_seq;
- __le64 size, max_size, truncate_size;
- __le32 truncate_seq;
- __le32 mode, uid, gid;
- __le32 nlink;
- __le64 files, subdirs, rbytes, rfiles, rsubdirs; /* dir stats */
- struct ceph_timespec rctime;
- struct ceph_frag_tree_head fragtree; /* (must be at end of struct) */
-} __attribute__ ((packed));
-/* followed by frag array, then symlink string, then xattr blob */
-
-/* reply_lease follows dname, and reply_inode */
-struct ceph_mds_reply_lease {
- __le16 mask; /* lease type(s) */
- __le32 duration_ms; /* lease duration */
- __le32 seq;
-} __attribute__ ((packed));
-
-struct ceph_mds_reply_dirfrag {
- __le32 frag; /* fragment */
- __le32 auth; /* auth mds, if this is a delegation point */
- __le32 ndist; /* number of mds' this is replicated on */
- __le32 dist[];
-} __attribute__ ((packed));
-
-#define CEPH_LOCK_FCNTL 1
-#define CEPH_LOCK_FLOCK 2
-
-#define CEPH_LOCK_SHARED 1
-#define CEPH_LOCK_EXCL 2
-#define CEPH_LOCK_UNLOCK 4
-
-struct ceph_filelock {
- __le64 start;/* file offset to start lock at */
- __le64 length; /* num bytes to lock; 0 for all following start */
- __le64 client; /* which client holds the lock */
- __le64 pid; /* process id holding the lock on the client */
- __le64 pid_namespace;
- __u8 type; /* shared lock, exclusive lock, or unlock */
-} __attribute__ ((packed));
-
-
-/* file access modes */
-#define CEPH_FILE_MODE_PIN 0
-#define CEPH_FILE_MODE_RD 1
-#define CEPH_FILE_MODE_WR 2
-#define CEPH_FILE_MODE_RDWR 3 /* RD | WR */
-#define CEPH_FILE_MODE_LAZY 4 /* lazy io */
-#define CEPH_FILE_MODE_NUM 8 /* bc these are bit fields.. mostly */
-
-int ceph_flags_to_mode(int flags);
-
-
-/* capability bits */
-#define CEPH_CAP_PIN 1 /* no specific capabilities beyond the pin */
-
-/* generic cap bits */
-#define CEPH_CAP_GSHARED 1 /* client can reads */
-#define CEPH_CAP_GEXCL 2 /* client can read and update */
-#define CEPH_CAP_GCACHE 4 /* (file) client can cache reads */
-#define CEPH_CAP_GRD 8 /* (file) client can read */
-#define CEPH_CAP_GWR 16 /* (file) client can write */
-#define CEPH_CAP_GBUFFER 32 /* (file) client can buffer writes */
-#define CEPH_CAP_GWREXTEND 64 /* (file) client can extend EOF */
-#define CEPH_CAP_GLAZYIO 128 /* (file) client can perform lazy io */
-
-/* per-lock shift */
-#define CEPH_CAP_SAUTH 2
-#define CEPH_CAP_SLINK 4
-#define CEPH_CAP_SXATTR 6
-#define CEPH_CAP_SFILE 8
-#define CEPH_CAP_SFLOCK 20
-
-#define CEPH_CAP_BITS 22
-
-/* composed values */
-#define CEPH_CAP_AUTH_SHARED (CEPH_CAP_GSHARED << CEPH_CAP_SAUTH)
-#define CEPH_CAP_AUTH_EXCL (CEPH_CAP_GEXCL << CEPH_CAP_SAUTH)
-#define CEPH_CAP_LINK_SHARED (CEPH_CAP_GSHARED << CEPH_CAP_SLINK)
-#define CEPH_CAP_LINK_EXCL (CEPH_CAP_GEXCL << CEPH_CAP_SLINK)
-#define CEPH_CAP_XATTR_SHARED (CEPH_CAP_GSHARED << CEPH_CAP_SXATTR)
-#define CEPH_CAP_XATTR_EXCL (CEPH_CAP_GEXCL << CEPH_CAP_SXATTR)
-#define CEPH_CAP_FILE(x) (x << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_SHARED (CEPH_CAP_GSHARED << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_EXCL (CEPH_CAP_GEXCL << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_CACHE (CEPH_CAP_GCACHE << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_RD (CEPH_CAP_GRD << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_WR (CEPH_CAP_GWR << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_BUFFER (CEPH_CAP_GBUFFER << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_WREXTEND (CEPH_CAP_GWREXTEND << CEPH_CAP_SFILE)
-#define CEPH_CAP_FILE_LAZYIO (CEPH_CAP_GLAZYIO << CEPH_CAP_SFILE)
-#define CEPH_CAP_FLOCK_SHARED (CEPH_CAP_GSHARED << CEPH_CAP_SFLOCK)
-#define CEPH_CAP_FLOCK_EXCL (CEPH_CAP_GEXCL << CEPH_CAP_SFLOCK)
-
-
-/* cap masks (for getattr) */
-#define CEPH_STAT_CAP_INODE CEPH_CAP_PIN
-#define CEPH_STAT_CAP_TYPE CEPH_CAP_PIN /* mode >> 12 */
-#define CEPH_STAT_CAP_SYMLINK CEPH_CAP_PIN
-#define CEPH_STAT_CAP_UID CEPH_CAP_AUTH_SHARED
-#define CEPH_STAT_CAP_GID CEPH_CAP_AUTH_SHARED
-#define CEPH_STAT_CAP_MODE CEPH_CAP_AUTH_SHARED
-#define CEPH_STAT_CAP_NLINK CEPH_CAP_LINK_SHARED
-#define CEPH_STAT_CAP_LAYOUT CEPH_CAP_FILE_SHARED
-#define CEPH_STAT_CAP_MTIME CEPH_CAP_FILE_SHARED
-#define CEPH_STAT_CAP_SIZE CEPH_CAP_FILE_SHARED
-#define CEPH_STAT_CAP_ATIME CEPH_CAP_FILE_SHARED /* fixme */
-#define CEPH_STAT_CAP_XATTR CEPH_CAP_XATTR_SHARED
-#define CEPH_STAT_CAP_INODE_ALL (CEPH_CAP_PIN | \
- CEPH_CAP_AUTH_SHARED | \
- CEPH_CAP_LINK_SHARED | \
- CEPH_CAP_FILE_SHARED | \
- CEPH_CAP_XATTR_SHARED)
-
-#define CEPH_CAP_ANY_SHARED (CEPH_CAP_AUTH_SHARED | \
- CEPH_CAP_LINK_SHARED | \
- CEPH_CAP_XATTR_SHARED | \
- CEPH_CAP_FILE_SHARED)
-#define CEPH_CAP_ANY_RD (CEPH_CAP_ANY_SHARED | CEPH_CAP_FILE_RD | \
- CEPH_CAP_FILE_CACHE)
-
-#define CEPH_CAP_ANY_EXCL (CEPH_CAP_AUTH_EXCL | \
- CEPH_CAP_LINK_EXCL | \
- CEPH_CAP_XATTR_EXCL | \
- CEPH_CAP_FILE_EXCL)
-#define CEPH_CAP_ANY_FILE_WR (CEPH_CAP_FILE_WR | CEPH_CAP_FILE_BUFFER | \
- CEPH_CAP_FILE_EXCL)
-#define CEPH_CAP_ANY_WR (CEPH_CAP_ANY_EXCL | CEPH_CAP_ANY_FILE_WR)
-#define CEPH_CAP_ANY (CEPH_CAP_ANY_RD | CEPH_CAP_ANY_EXCL | \
- CEPH_CAP_ANY_FILE_WR | CEPH_CAP_FILE_LAZYIO | \
- CEPH_CAP_PIN)
-
-#define CEPH_CAP_LOCKS (CEPH_LOCK_IFILE | CEPH_LOCK_IAUTH | CEPH_LOCK_ILINK | \
- CEPH_LOCK_IXATTR)
-
-int ceph_caps_for_mode(int mode);
-
-enum {
- CEPH_CAP_OP_GRANT, /* mds->client grant */
- CEPH_CAP_OP_REVOKE, /* mds->client revoke */
- CEPH_CAP_OP_TRUNC, /* mds->client trunc notify */
- CEPH_CAP_OP_EXPORT, /* mds has exported the cap */
- CEPH_CAP_OP_IMPORT, /* mds has imported the cap */
- CEPH_CAP_OP_UPDATE, /* client->mds update */
- CEPH_CAP_OP_DROP, /* client->mds drop cap bits */
- CEPH_CAP_OP_FLUSH, /* client->mds cap writeback */
- CEPH_CAP_OP_FLUSH_ACK, /* mds->client flushed */
- CEPH_CAP_OP_FLUSHSNAP, /* client->mds flush snapped metadata */
- CEPH_CAP_OP_FLUSHSNAP_ACK, /* mds->client flushed snapped metadata */
- CEPH_CAP_OP_RELEASE, /* client->mds release (clean) cap */
- CEPH_CAP_OP_RENEW, /* client->mds renewal request */
-};
-
-extern const char *ceph_cap_op_name(int op);
-
-/*
- * caps message, used for capability callbacks, acks, requests, etc.
- */
-struct ceph_mds_caps {
- __le32 op; /* CEPH_CAP_OP_* */
- __le64 ino, realm;
- __le64 cap_id;
- __le32 seq, issue_seq;
- __le32 caps, wanted, dirty; /* latest issued/wanted/dirty */
- __le32 migrate_seq;
- __le64 snap_follows;
- __le32 snap_trace_len;
-
- /* authlock */
- __le32 uid, gid, mode;
-
- /* linklock */
- __le32 nlink;
-
- /* xattrlock */
- __le32 xattr_len;
- __le64 xattr_version;
-
- /* filelock */
- __le64 size, max_size, truncate_size;
- __le32 truncate_seq;
- struct ceph_timespec mtime, atime, ctime;
- struct ceph_file_layout layout;
- __le32 time_warp_seq;
-} __attribute__ ((packed));
-
-/* cap release msg head */
-struct ceph_mds_cap_release {
- __le32 num; /* number of cap_items that follow */
-} __attribute__ ((packed));
-
-struct ceph_mds_cap_item {
- __le64 ino;
- __le64 cap_id;
- __le32 migrate_seq, seq;
-} __attribute__ ((packed));
-
-#define CEPH_MDS_LEASE_REVOKE 1 /* mds -> client */
-#define CEPH_MDS_LEASE_RELEASE 2 /* client -> mds */
-#define CEPH_MDS_LEASE_RENEW 3 /* client <-> mds */
-#define CEPH_MDS_LEASE_REVOKE_ACK 4 /* client -> mds */
-
-extern const char *ceph_lease_op_name(int o);
-
-/* lease msg header */
-struct ceph_mds_lease {
- __u8 action; /* CEPH_MDS_LEASE_* */
- __le16 mask; /* which lease */
- __le64 ino;
- __le64 first, last; /* snap range */
- __le32 seq;
- __le32 duration_ms; /* duration of renewal */
-} __attribute__ ((packed));
-/* followed by a __le32+string for dname */
-
-/* client reconnect */
-struct ceph_mds_cap_reconnect {
- __le64 cap_id;
- __le32 wanted;
- __le32 issued;
- __le64 snaprealm;
- __le64 pathbase; /* base ino for our path to this ino */
- __le32 flock_len; /* size of flock state blob, if any */
-} __attribute__ ((packed));
-/* followed by flock blob */
-
-struct ceph_mds_cap_reconnect_v1 {
- __le64 cap_id;
- __le32 wanted;
- __le32 issued;
- __le64 size;
- struct ceph_timespec mtime, atime;
- __le64 snaprealm;
- __le64 pathbase; /* base ino for our path to this ino */
-} __attribute__ ((packed));
-
-struct ceph_mds_snaprealm_reconnect {
- __le64 ino; /* snap realm base */
- __le64 seq; /* snap seq for this snap realm */
- __le64 parent; /* parent realm */
-} __attribute__ ((packed));
-
-/*
- * snaps
- */
-enum {
- CEPH_SNAP_OP_UPDATE, /* CREATE or DESTROY */
- CEPH_SNAP_OP_CREATE,
- CEPH_SNAP_OP_DESTROY,
- CEPH_SNAP_OP_SPLIT,
-};
-
-extern const char *ceph_snap_op_name(int o);
-
-/* snap msg header */
-struct ceph_mds_snap_head {
- __le32 op; /* CEPH_SNAP_OP_* */
- __le64 split; /* ino to split off, if any */
- __le32 num_split_inos; /* # inos belonging to new child realm */
- __le32 num_split_realms; /* # child realms udner new child realm */
- __le32 trace_len; /* size of snap trace blob */
-} __attribute__ ((packed));
-/* followed by split ino list, then split realms, then the trace blob */
-
-/*
- * encode info about a snaprealm, as viewed by a client
- */
-struct ceph_mds_snap_realm {
- __le64 ino; /* ino */
- __le64 created; /* snap: when created */
- __le64 parent; /* ino: parent realm */
- __le64 parent_since; /* snap: same parent since */
- __le64 seq; /* snap: version */
- __le32 num_snaps;
- __le32 num_prior_parent_snaps;
-} __attribute__ ((packed));
-/* followed by my snap list, then prior parent snap list */
-
-#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.