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891 lines
28 KiB
891 lines
28 KiB
/* 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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|
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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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/* |
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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_DOTDOT 3 /* used by ceph fuse for parent (..) */ |
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|
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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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/* |
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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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|
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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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|
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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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|
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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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|
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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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/********************************************* |
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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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|
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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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|
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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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}; |
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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_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, |
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CEPH_MDS_OP_RMSNAP = 0x01401, |
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CEPH_MDS_OP_LSSNAP = 0x00402, |
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CEPH_MDS_OP_RENAMESNAP = 0x01403, |
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}; |
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extern const char *ceph_mds_op_name(int op); |
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#define CEPH_SETATTR_MODE 1 |
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#define CEPH_SETATTR_UID 2 |
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#define CEPH_SETATTR_GID 4 |
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#define CEPH_SETATTR_MTIME 8 |
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#define CEPH_SETATTR_ATIME 16 |
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#define CEPH_SETATTR_SIZE 32 |
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#define CEPH_SETATTR_CTIME 64 |
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/* |
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* Ceph setxattr request flags. |
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*/ |
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#define CEPH_XATTR_CREATE (1 << 0) |
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#define CEPH_XATTR_REPLACE (1 << 1) |
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#define CEPH_XATTR_REMOVE (1 << 31) |
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/* |
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* readdir request flags; |
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*/ |
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#define CEPH_READDIR_REPLY_BITFLAGS (1<<0) |
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/* |
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* readdir reply flags. |
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*/ |
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#define CEPH_READDIR_FRAG_END (1<<0) |
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#define CEPH_READDIR_FRAG_COMPLETE (1<<8) |
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#define CEPH_READDIR_HASH_ORDER (1<<9) |
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#define CEPH_READDIR_OFFSET_HASH (1<<10) |
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/* |
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* open request flags |
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*/ |
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#define CEPH_O_RDONLY 00000000 |
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#define CEPH_O_WRONLY 00000001 |
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#define CEPH_O_RDWR 00000002 |
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#define CEPH_O_CREAT 00000100 |
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#define CEPH_O_EXCL 00000200 |
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#define CEPH_O_TRUNC 00001000 |
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#define CEPH_O_DIRECTORY 00200000 |
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#define CEPH_O_NOFOLLOW 00400000 |
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union ceph_mds_request_args { |
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struct { |
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__le32 mask; /* CEPH_CAP_* */ |
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} __attribute__ ((packed)) getattr; |
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struct { |
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__le32 mode; |
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__le32 uid; |
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__le32 gid; |
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struct ceph_timespec mtime; |
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struct ceph_timespec atime; |
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__le64 size, old_size; /* old_size needed by truncate */ |
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__le32 mask; /* CEPH_SETATTR_* */ |
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} __attribute__ ((packed)) setattr; |
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struct { |
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__le32 frag; /* which dir fragment */ |
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__le32 max_entries; /* how many dentries to grab */ |
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__le32 max_bytes; |
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__le16 flags; |
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__le32 offset_hash; |
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} __attribute__ ((packed)) readdir; |
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struct { |
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__le32 mode; |
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__le32 rdev; |
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} __attribute__ ((packed)) mknod; |
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struct { |
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__le32 mode; |
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} __attribute__ ((packed)) mkdir; |
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struct { |
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__le32 flags; |
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__le32 mode; |
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__le32 stripe_unit; /* layout for newly created file */ |
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__le32 stripe_count; /* ... */ |
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__le32 object_size; |
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__le32 file_replication; |
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__le32 mask; /* CEPH_CAP_* */ |
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__le32 old_size; |
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} __attribute__ ((packed)) open; |
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struct { |
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__le32 flags; |
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__le32 osdmap_epoch; /* used for setting file/dir layouts */ |
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} __attribute__ ((packed)) setxattr; |
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struct { |
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struct ceph_file_layout_legacy layout; |
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} __attribute__ ((packed)) setlayout; |
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struct { |
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__u8 rule; /* currently fcntl or flock */ |
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__u8 type; /* shared, exclusive, remove*/ |
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__le64 owner; /* owner of the lock */ |
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__le64 pid; /* process id requesting the lock */ |
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__le64 start; /* initial location to lock */ |
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__le64 length; /* num bytes to lock from start */ |
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__u8 wait; /* will caller wait for lock to become available? */ |
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} __attribute__ ((packed)) filelock_change; |
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struct { |
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__le32 mask; /* CEPH_CAP_* */ |
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__le64 snapid; |
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__le64 parent; |
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__le32 hash; |
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} __attribute__ ((packed)) lookupino; |
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} __attribute__ ((packed)); |
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union ceph_mds_request_args_ext { |
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union ceph_mds_request_args old; |
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struct { |
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__le32 mode; |
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__le32 uid; |
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__le32 gid; |
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struct ceph_timespec mtime; |
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struct ceph_timespec atime; |
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__le64 size, old_size; /* old_size needed by truncate */ |
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__le32 mask; /* CEPH_SETATTR_* */ |
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struct ceph_timespec btime; |
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} __attribute__ ((packed)) setattr_ext; |
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}; |
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#define CEPH_MDS_FLAG_REPLAY 1 /* this is a replayed op */ |
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#define CEPH_MDS_FLAG_WANT_DENTRY 2 /* want dentry in reply */ |
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#define CEPH_MDS_FLAG_ASYNC 4 /* request is asynchronous */ |
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struct ceph_mds_request_head_old { |
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__le64 oldest_client_tid; |
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__le32 mdsmap_epoch; /* on client */ |
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__le32 flags; /* CEPH_MDS_FLAG_* */ |
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__u8 num_retry, num_fwd; /* count retry, fwd attempts */ |
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__le16 num_releases; /* # include cap/lease release records */ |
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__le32 op; /* mds op code */ |
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__le32 caller_uid, caller_gid; |
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__le64 ino; /* use this ino for openc, mkdir, mknod, |
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etc. (if replaying) */ |
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union ceph_mds_request_args args; |
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} __attribute__ ((packed)); |
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#define CEPH_MDS_REQUEST_HEAD_VERSION 1 |
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struct ceph_mds_request_head { |
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__le16 version; /* struct version */ |
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__le64 oldest_client_tid; |
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__le32 mdsmap_epoch; /* on client */ |
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__le32 flags; /* CEPH_MDS_FLAG_* */ |
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__u8 num_retry, num_fwd; /* count retry, fwd attempts */ |
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__le16 num_releases; /* # include cap/lease release records */ |
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__le32 op; /* mds op code */ |
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__le32 caller_uid, caller_gid; |
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__le64 ino; /* use this ino for openc, mkdir, mknod, |
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etc. (if replaying) */ |
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union ceph_mds_request_args_ext args; |
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} __attribute__ ((packed)); |
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/* cap/lease release record */ |
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struct ceph_mds_request_release { |
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__le64 ino, cap_id; /* ino and unique cap id */ |
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__le32 caps, wanted; /* new issued, wanted */ |
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__le32 seq, issue_seq, mseq; |
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__le32 dname_seq; /* if releasing a dentry lease, a */ |
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__le32 dname_len; /* string follows. */ |
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} __attribute__ ((packed)); |
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/* client reply */ |
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struct ceph_mds_reply_head { |
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__le32 op; |
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__le32 result; |
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__le32 mdsmap_epoch; |
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__u8 safe; /* true if committed to disk */ |
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__u8 is_dentry, is_target; /* true if dentry, target inode records |
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are included with reply */ |
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} __attribute__ ((packed)); |
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|
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/* one for each node split */ |
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struct ceph_frag_tree_split { |
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__le32 frag; /* this frag splits... */ |
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__le32 by; /* ...by this many bits */ |
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} __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; |
|
|
|
/* filelock */ |
|
__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
|
|
|