896 lines
28 KiB
C
896 lines
28 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* ceph_fs.h - Ceph constants and data types to share between kernel and
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* user space.
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*
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* Most types in this file are defined as little-endian, and are
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* primarily intended to describe data structures that pass over the
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* wire or that are stored on disk.
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*
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* LGPL2
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*/
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#ifndef CEPH_FS_H
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#define CEPH_FS_H
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#include <linux/ceph/msgr.h>
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#include <linux/ceph/rados.h>
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/*
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* subprotocol versions. when specific messages types or high-level
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* protocols change, bump the affected components. we keep rev
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* internal cluster protocols separately from the public,
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* client-facing protocol.
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*/
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#define CEPH_OSDC_PROTOCOL 24 /* server/client */
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#define CEPH_MDSC_PROTOCOL 32 /* server/client */
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#define CEPH_MONC_PROTOCOL 15 /* server/client */
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#define CEPH_INO_ROOT 1
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#define CEPH_INO_CEPH 2 /* hidden .ceph dir */
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#define CEPH_INO_GLOBAL_SNAPREALM 3 /* global dummy snaprealm */
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/* arbitrary limit on max # of monitors (cluster of 3 is typical) */
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#define CEPH_MAX_MON 31
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/*
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* legacy ceph_file_layoute
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*/
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struct ceph_file_layout_legacy {
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/* file -> object mapping */
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__le32 fl_stripe_unit; /* stripe unit, in bytes. must be multiple
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of page size. */
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__le32 fl_stripe_count; /* over this many objects */
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__le32 fl_object_size; /* until objects are this big, then move to
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new objects */
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__le32 fl_cas_hash; /* UNUSED. 0 = none; 1 = sha256 */
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/* pg -> disk layout */
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__le32 fl_object_stripe_unit; /* UNUSED. for per-object parity, if any */
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/* object -> pg layout */
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__le32 fl_unused; /* unused; used to be preferred primary for pg (-1 for none) */
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__le32 fl_pg_pool; /* namespace, crush ruleset, rep level */
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} __attribute__ ((packed));
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struct ceph_string;
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/*
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* ceph_file_layout - describe data layout for a file/inode
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*/
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struct ceph_file_layout {
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/* file -> object mapping */
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u32 stripe_unit; /* stripe unit, in bytes */
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u32 stripe_count; /* over this many objects */
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u32 object_size; /* until objects are this big */
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s64 pool_id; /* rados pool id */
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struct ceph_string __rcu *pool_ns; /* rados pool namespace */
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};
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extern int ceph_file_layout_is_valid(const struct ceph_file_layout *layout);
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extern void ceph_file_layout_from_legacy(struct ceph_file_layout *fl,
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struct ceph_file_layout_legacy *legacy);
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extern void ceph_file_layout_to_legacy(struct ceph_file_layout *fl,
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struct ceph_file_layout_legacy *legacy);
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#define CEPH_MIN_STRIPE_UNIT 65536
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struct ceph_dir_layout {
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__u8 dl_dir_hash; /* see ceph_hash.h for ids */
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__u8 dl_unused1;
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__u16 dl_unused2;
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__u32 dl_unused3;
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} __attribute__ ((packed));
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/* crypto algorithms */
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#define CEPH_CRYPTO_NONE 0x0
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#define CEPH_CRYPTO_AES 0x1
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#define CEPH_AES_IV "cephsageyudagreg"
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/* security/authentication protocols */
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#define CEPH_AUTH_UNKNOWN 0x0
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#define CEPH_AUTH_NONE 0x1
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#define CEPH_AUTH_CEPHX 0x2
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#define CEPH_AUTH_MODE_NONE 0
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#define CEPH_AUTH_MODE_AUTHORIZER 1
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#define CEPH_AUTH_MODE_MON 10
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/* msgr2 protocol modes */
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#define CEPH_CON_MODE_UNKNOWN 0x0
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#define CEPH_CON_MODE_CRC 0x1
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#define CEPH_CON_MODE_SECURE 0x2
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#define CEPH_AUTH_UID_DEFAULT ((__u64) -1)
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const char *ceph_auth_proto_name(int proto);
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const char *ceph_con_mode_name(int mode);
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/*********************************************
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* message layer
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*/
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/*
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* message types
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*/
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/* misc */
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#define CEPH_MSG_SHUTDOWN 1
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#define CEPH_MSG_PING 2
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/* client <-> monitor */
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#define CEPH_MSG_MON_MAP 4
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#define CEPH_MSG_MON_GET_MAP 5
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#define CEPH_MSG_STATFS 13
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#define CEPH_MSG_STATFS_REPLY 14
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#define CEPH_MSG_MON_SUBSCRIBE 15
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#define CEPH_MSG_MON_SUBSCRIBE_ACK 16
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#define CEPH_MSG_AUTH 17
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#define CEPH_MSG_AUTH_REPLY 18
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#define CEPH_MSG_MON_GET_VERSION 19
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#define CEPH_MSG_MON_GET_VERSION_REPLY 20
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/* client <-> mds */
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#define CEPH_MSG_MDS_MAP 21
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#define CEPH_MSG_FS_MAP_USER 103
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#define CEPH_MSG_CLIENT_SESSION 22
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#define CEPH_MSG_CLIENT_RECONNECT 23
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#define CEPH_MSG_CLIENT_REQUEST 24
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#define CEPH_MSG_CLIENT_REQUEST_FORWARD 25
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#define CEPH_MSG_CLIENT_REPLY 26
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#define CEPH_MSG_CLIENT_METRICS 29
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#define CEPH_MSG_CLIENT_CAPS 0x310
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#define CEPH_MSG_CLIENT_LEASE 0x311
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#define CEPH_MSG_CLIENT_SNAP 0x312
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#define CEPH_MSG_CLIENT_CAPRELEASE 0x313
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#define CEPH_MSG_CLIENT_QUOTA 0x314
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/* pool ops */
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#define CEPH_MSG_POOLOP_REPLY 48
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#define CEPH_MSG_POOLOP 49
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/* mon commands */
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#define CEPH_MSG_MON_COMMAND 50
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#define CEPH_MSG_MON_COMMAND_ACK 51
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/* osd */
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#define CEPH_MSG_OSD_MAP 41
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#define CEPH_MSG_OSD_OP 42
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#define CEPH_MSG_OSD_OPREPLY 43
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#define CEPH_MSG_WATCH_NOTIFY 44
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#define CEPH_MSG_OSD_BACKOFF 61
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/* watch-notify operations */
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enum {
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CEPH_WATCH_EVENT_NOTIFY = 1, /* notifying watcher */
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CEPH_WATCH_EVENT_NOTIFY_COMPLETE = 2, /* notifier notified when done */
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CEPH_WATCH_EVENT_DISCONNECT = 3, /* we were disconnected */
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};
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struct ceph_mon_request_header {
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__le64 have_version;
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__le16 session_mon;
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__le64 session_mon_tid;
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} __attribute__ ((packed));
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struct ceph_mon_statfs {
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struct ceph_mon_request_header monhdr;
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struct ceph_fsid fsid;
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__u8 contains_data_pool;
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__le64 data_pool;
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} __attribute__ ((packed));
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struct ceph_statfs {
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__le64 kb, kb_used, kb_avail;
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__le64 num_objects;
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} __attribute__ ((packed));
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struct ceph_mon_statfs_reply {
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struct ceph_fsid fsid;
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__le64 version;
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struct ceph_statfs st;
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} __attribute__ ((packed));
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struct ceph_mon_command {
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struct ceph_mon_request_header monhdr;
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struct ceph_fsid fsid;
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__le32 num_strs; /* always 1 */
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__le32 str_len;
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char str[];
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} __attribute__ ((packed));
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struct ceph_osd_getmap {
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struct ceph_mon_request_header monhdr;
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struct ceph_fsid fsid;
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__le32 start;
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} __attribute__ ((packed));
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struct ceph_mds_getmap {
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struct ceph_mon_request_header monhdr;
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struct ceph_fsid fsid;
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} __attribute__ ((packed));
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struct ceph_client_mount {
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struct ceph_mon_request_header monhdr;
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} __attribute__ ((packed));
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#define CEPH_SUBSCRIBE_ONETIME 1 /* i want only 1 update after have */
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struct ceph_mon_subscribe_item {
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__le64 start;
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__u8 flags;
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} __attribute__ ((packed));
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struct ceph_mon_subscribe_ack {
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__le32 duration; /* seconds */
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struct ceph_fsid fsid;
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} __attribute__ ((packed));
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#define CEPH_FS_CLUSTER_ID_NONE -1
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/*
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* mdsmap flags
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*/
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#define CEPH_MDSMAP_DOWN (1<<0) /* cluster deliberately down */
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/*
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* mds states
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* > 0 -> in
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* <= 0 -> out
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*/
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#define CEPH_MDS_STATE_DNE 0 /* down, does not exist. */
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#define CEPH_MDS_STATE_STOPPED -1 /* down, once existed, but no subtrees.
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empty log. */
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#define CEPH_MDS_STATE_BOOT -4 /* up, boot announcement. */
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#define CEPH_MDS_STATE_STANDBY -5 /* up, idle. waiting for assignment. */
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#define CEPH_MDS_STATE_CREATING -6 /* up, creating MDS instance. */
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#define CEPH_MDS_STATE_STARTING -7 /* up, starting previously stopped mds */
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#define CEPH_MDS_STATE_STANDBY_REPLAY -8 /* up, tailing active node's journal */
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#define CEPH_MDS_STATE_REPLAYONCE -9 /* up, replaying an active node's journal */
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#define CEPH_MDS_STATE_REPLAY 8 /* up, replaying journal. */
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#define CEPH_MDS_STATE_RESOLVE 9 /* up, disambiguating distributed
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operations (import, rename, etc.) */
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#define CEPH_MDS_STATE_RECONNECT 10 /* up, reconnect to clients */
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#define CEPH_MDS_STATE_REJOIN 11 /* up, rejoining distributed cache */
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#define CEPH_MDS_STATE_CLIENTREPLAY 12 /* up, replaying client operations */
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#define CEPH_MDS_STATE_ACTIVE 13 /* up, active */
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#define CEPH_MDS_STATE_STOPPING 14 /* up, but exporting metadata */
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extern const char *ceph_mds_state_name(int s);
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/*
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* metadata lock types.
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* - these are bitmasks.. we can compose them
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* - they also define the lock ordering by the MDS
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* - a few of these are internal to the mds
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*/
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#define CEPH_LOCK_DVERSION 1
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#define CEPH_LOCK_DN 2
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#define CEPH_LOCK_ISNAP 16
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#define CEPH_LOCK_IVERSION 32 /* mds internal */
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#define CEPH_LOCK_IFILE 64
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#define CEPH_LOCK_IAUTH 128
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#define CEPH_LOCK_ILINK 256
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#define CEPH_LOCK_IDFT 512 /* dir frag tree */
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#define CEPH_LOCK_INEST 1024 /* mds internal */
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#define CEPH_LOCK_IXATTR 2048
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#define CEPH_LOCK_IFLOCK 4096 /* advisory file locks */
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#define CEPH_LOCK_INO 8192 /* immutable inode bits; not a lock */
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#define CEPH_LOCK_IPOLICY 16384 /* policy lock on dirs. MDS internal */
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/* client_session ops */
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enum {
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CEPH_SESSION_REQUEST_OPEN,
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CEPH_SESSION_OPEN,
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CEPH_SESSION_REQUEST_CLOSE,
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CEPH_SESSION_CLOSE,
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CEPH_SESSION_REQUEST_RENEWCAPS,
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CEPH_SESSION_RENEWCAPS,
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CEPH_SESSION_STALE,
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CEPH_SESSION_RECALL_STATE,
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CEPH_SESSION_FLUSHMSG,
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CEPH_SESSION_FLUSHMSG_ACK,
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CEPH_SESSION_FORCE_RO,
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CEPH_SESSION_REJECT,
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CEPH_SESSION_REQUEST_FLUSH_MDLOG,
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};
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#define CEPH_SESSION_BLOCKLISTED (1 << 0) /* session blocklisted */
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extern const char *ceph_session_op_name(int op);
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struct ceph_mds_session_head {
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__le32 op;
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__le64 seq;
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struct ceph_timespec stamp;
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__le32 max_caps, max_leases;
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} __attribute__ ((packed));
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/* client_request */
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/*
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* metadata ops.
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* & 0x001000 -> write op
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* & 0x010000 -> follow symlink (e.g. stat(), not lstat()).
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& & 0x100000 -> use weird ino/path trace
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*/
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#define CEPH_MDS_OP_WRITE 0x001000
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enum {
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CEPH_MDS_OP_LOOKUP = 0x00100,
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CEPH_MDS_OP_GETATTR = 0x00101,
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CEPH_MDS_OP_LOOKUPHASH = 0x00102,
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CEPH_MDS_OP_LOOKUPPARENT = 0x00103,
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CEPH_MDS_OP_LOOKUPINO = 0x00104,
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CEPH_MDS_OP_LOOKUPNAME = 0x00105,
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CEPH_MDS_OP_GETVXATTR = 0x00106,
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CEPH_MDS_OP_SETXATTR = 0x01105,
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CEPH_MDS_OP_RMXATTR = 0x01106,
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CEPH_MDS_OP_SETLAYOUT = 0x01107,
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CEPH_MDS_OP_SETATTR = 0x01108,
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CEPH_MDS_OP_SETFILELOCK= 0x01109,
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CEPH_MDS_OP_GETFILELOCK= 0x00110,
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CEPH_MDS_OP_SETDIRLAYOUT=0x0110a,
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CEPH_MDS_OP_MKNOD = 0x01201,
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CEPH_MDS_OP_LINK = 0x01202,
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CEPH_MDS_OP_UNLINK = 0x01203,
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CEPH_MDS_OP_RENAME = 0x01204,
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CEPH_MDS_OP_MKDIR = 0x01220,
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CEPH_MDS_OP_RMDIR = 0x01221,
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CEPH_MDS_OP_SYMLINK = 0x01222,
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CEPH_MDS_OP_CREATE = 0x01301,
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CEPH_MDS_OP_OPEN = 0x00302,
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CEPH_MDS_OP_READDIR = 0x00305,
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CEPH_MDS_OP_LOOKUPSNAP = 0x00400,
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CEPH_MDS_OP_MKSNAP = 0x01400,
|
||
|
|
CEPH_MDS_OP_RMSNAP = 0x01401,
|
||
|
|
CEPH_MDS_OP_LSSNAP = 0x00402,
|
||
|
|
CEPH_MDS_OP_RENAMESNAP = 0x01403,
|
||
|
|
};
|
||
|
|
|
||
|
|
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
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Ceph setxattr request flags.
|
||
|
|
*/
|
||
|
|
#define CEPH_XATTR_CREATE (1 << 0)
|
||
|
|
#define CEPH_XATTR_REPLACE (1 << 1)
|
||
|
|
#define CEPH_XATTR_REMOVE (1 << 31)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* readdir request flags;
|
||
|
|
*/
|
||
|
|
#define CEPH_READDIR_REPLY_BITFLAGS (1<<0)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* readdir reply flags.
|
||
|
|
*/
|
||
|
|
#define CEPH_READDIR_FRAG_END (1<<0)
|
||
|
|
#define CEPH_READDIR_FRAG_COMPLETE (1<<8)
|
||
|
|
#define CEPH_READDIR_HASH_ORDER (1<<9)
|
||
|
|
#define CEPH_READDIR_OFFSET_HASH (1<<10)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* open request flags
|
||
|
|
*/
|
||
|
|
#define CEPH_O_RDONLY 00000000
|
||
|
|
#define CEPH_O_WRONLY 00000001
|
||
|
|
#define CEPH_O_RDWR 00000002
|
||
|
|
#define CEPH_O_CREAT 00000100
|
||
|
|
#define CEPH_O_EXCL 00000200
|
||
|
|
#define CEPH_O_TRUNC 00001000
|
||
|
|
#define CEPH_O_DIRECTORY 00200000
|
||
|
|
#define CEPH_O_NOFOLLOW 00400000
|
||
|
|
|
||
|
|
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;
|
||
|
|
__le16 flags;
|
||
|
|
__le32 offset_hash;
|
||
|
|
} __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 pool;
|
||
|
|
__le32 mask; /* CEPH_CAP_* */
|
||
|
|
__le64 old_size;
|
||
|
|
} __attribute__ ((packed)) open;
|
||
|
|
struct {
|
||
|
|
__le32 flags;
|
||
|
|
__le32 osdmap_epoch; /* used for setting file/dir layouts */
|
||
|
|
} __attribute__ ((packed)) setxattr;
|
||
|
|
struct {
|
||
|
|
struct ceph_file_layout_legacy layout;
|
||
|
|
} __attribute__ ((packed)) setlayout;
|
||
|
|
struct {
|
||
|
|
__u8 rule; /* currently fcntl or flock */
|
||
|
|
__u8 type; /* shared, exclusive, remove*/
|
||
|
|
__le64 owner; /* owner of the lock */
|
||
|
|
__le64 pid; /* process id requesting the lock */
|
||
|
|
__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;
|
||
|
|
struct {
|
||
|
|
__le32 mask; /* CEPH_CAP_* */
|
||
|
|
__le64 snapid;
|
||
|
|
__le64 parent;
|
||
|
|
__le32 hash;
|
||
|
|
} __attribute__ ((packed)) lookupino;
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
union ceph_mds_request_args_ext {
|
||
|
|
union ceph_mds_request_args old;
|
||
|
|
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_* */
|
||
|
|
struct ceph_timespec btime;
|
||
|
|
} __attribute__ ((packed)) setattr_ext;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define CEPH_MDS_FLAG_REPLAY 1 /* this is a replayed op */
|
||
|
|
#define CEPH_MDS_FLAG_WANT_DENTRY 2 /* want dentry in reply */
|
||
|
|
#define CEPH_MDS_FLAG_ASYNC 4 /* request is asynchronous */
|
||
|
|
|
||
|
|
struct ceph_mds_request_head_old {
|
||
|
|
__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));
|
||
|
|
|
||
|
|
#define CEPH_MDS_REQUEST_HEAD_VERSION 1
|
||
|
|
|
||
|
|
struct ceph_mds_request_head {
|
||
|
|
__le16 version; /* struct version */
|
||
|
|
__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_ext 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 << 0) /* cap is issued by auth mds */
|
||
|
|
#define CEPH_CAP_FLAG_RELEASE (1 << 1) /* release the cap */
|
||
|
|
|
||
|
|
/* 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_legacy 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, symlink string, dir layout, 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));
|
||
|
|
|
||
|
|
#define CEPH_LEASE_VALID (1 | 2) /* old and new bit values */
|
||
|
|
#define CEPH_LEASE_PRIMARY_LINK 4 /* primary linkage */
|
||
|
|
|
||
|
|
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_FCNTL_INTR 3
|
||
|
|
#define CEPH_LOCK_FLOCK_INTR 4
|
||
|
|
|
||
|
|
|
||
|
|
#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 owner; /* owner the lock */
|
||
|
|
__le64 pid; /* process id holding the lock on the client */
|
||
|
|
__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_BITS 4
|
||
|
|
#define CEPH_FILE_MODE_MASK ((1 << CEPH_FILE_MODE_BITS) - 1)
|
||
|
|
|
||
|
|
int ceph_flags_to_mode(int flags);
|
||
|
|
|
||
|
|
#define CEPH_INLINE_NONE ((__u64)-1)
|
||
|
|
|
||
|
|
/* 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 */
|
||
|
|
|
||
|
|
#define CEPH_CAP_SIMPLE_BITS 2
|
||
|
|
#define CEPH_CAP_FILE_BITS 8
|
||
|
|
|
||
|
|
/* 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_STAT_CAP_INLINE_DATA (CEPH_CAP_FILE_SHARED | \
|
||
|
|
CEPH_CAP_FILE_RD)
|
||
|
|
#define CEPH_STAT_RSTAT CEPH_CAP_FILE_WREXTEND
|
||
|
|
|
||
|
|
#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_RD (CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE | \
|
||
|
|
CEPH_CAP_FILE_SHARED)
|
||
|
|
#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_ALL_FILE (CEPH_CAP_PIN | CEPH_CAP_ANY_SHARED | \
|
||
|
|
CEPH_CAP_AUTH_EXCL | CEPH_CAP_XATTR_EXCL | \
|
||
|
|
CEPH_CAP_ANY_FILE_RD | CEPH_CAP_ANY_FILE_WR)
|
||
|
|
|
||
|
|
#define CEPH_CAP_LOCKS (CEPH_LOCK_IFILE | CEPH_LOCK_IAUTH | CEPH_LOCK_ILINK | \
|
||
|
|
CEPH_LOCK_IXATTR)
|
||
|
|
|
||
|
|
/* cap masks async dir operations */
|
||
|
|
#define CEPH_CAP_DIR_CREATE CEPH_CAP_FILE_CACHE
|
||
|
|
#define CEPH_CAP_DIR_UNLINK CEPH_CAP_FILE_RD
|
||
|
|
#define CEPH_CAP_ANY_DIR_OPS (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_RD | \
|
||
|
|
CEPH_CAP_FILE_WREXTEND | CEPH_CAP_FILE_LAZYIO)
|
||
|
|
|
||
|
|
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);
|
||
|
|
|
||
|
|
/* flags field in client cap messages (version >= 10) */
|
||
|
|
#define CEPH_CLIENT_CAPS_SYNC (1<<0)
|
||
|
|
#define CEPH_CLIENT_CAPS_NO_CAPSNAP (1<<1)
|
||
|
|
#define CEPH_CLIENT_CAPS_PENDING_CAPSNAP (1<<2)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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;
|
||
|
|
|
||
|
|
/* a union of non-export and export bodies. */
|
||
|
|
__le64 size, max_size, truncate_size;
|
||
|
|
__le32 truncate_seq;
|
||
|
|
struct ceph_timespec mtime, atime, ctime;
|
||
|
|
struct ceph_file_layout_legacy layout;
|
||
|
|
__le32 time_warp_seq;
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
struct ceph_mds_cap_peer {
|
||
|
|
__le64 cap_id;
|
||
|
|
__le32 seq;
|
||
|
|
__le32 mseq;
|
||
|
|
__le32 mds;
|
||
|
|
__u8 flags;
|
||
|
|
} __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 */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* quotas
|
||
|
|
*/
|
||
|
|
struct ceph_mds_quota {
|
||
|
|
__le64 ino; /* ino */
|
||
|
|
struct ceph_timespec rctime;
|
||
|
|
__le64 rbytes; /* dir stats */
|
||
|
|
__le64 rfiles;
|
||
|
|
__le64 rsubdirs;
|
||
|
|
__u8 struct_v; /* compat */
|
||
|
|
__u8 struct_compat;
|
||
|
|
__le32 struct_len;
|
||
|
|
__le64 max_bytes; /* quota max. bytes */
|
||
|
|
__le64 max_files; /* quota max. files */
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
#endif
|