4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2010, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/include/lustre/lustre_user.h
34 * Lustre public user-space interface definitions.
37 #ifndef _LUSTRE_USER_H
38 #define _LUSTRE_USER_H
40 /** \defgroup lustreuser lustreuser
45 #include <linux/types.h>
48 # include <linux/fs.h>
49 # include <linux/quota.h>
50 # include <linux/string.h> /* snprintf() */
51 # include <linux/version.h>
52 #else /* !__KERNEL__ */
53 # define NEED_QUOTA_DEFS
56 # include <stdio.h> /* snprintf() */
58 # include <sys/quota.h>
59 # include <sys/stat.h>
60 #endif /* __KERNEL__ */
61 #include <lustre/ll_fiemap.h>
64 * This is a temporary solution of adding quota type.
65 * Should be removed as soon as system header is updated.
68 #define LL_MAXQUOTAS 3
70 #define INITQFNAMES { \
71 "user", /* USRQUOTA */ \
72 "group", /* GRPQUOTA */ \
73 "project", /* PRJQUOTA */ \
78 #if defined(__x86_64__) || defined(__ia64__) || defined(__ppc64__) || \
79 defined(__craynv) || defined(__mips64__) || defined(__powerpc64__) || \
81 typedef struct stat lstat_t;
82 # define lstat_f lstat
83 # define fstat_f fstat
84 # define fstatat_f fstatat
85 # define HAVE_LOV_USER_MDS_DATA
86 #elif defined(__USE_LARGEFILE64) || defined(__KERNEL__)
87 typedef struct stat64 lstat_t;
88 # define lstat_f lstat64
89 # define fstat_f fstat64
90 # define fstatat_f fstatat64
91 # define HAVE_LOV_USER_MDS_DATA
94 #define LUSTRE_EOF 0xffffffffffffffffULL
97 #define LL_SUPER_MAGIC 0x0BD00BD0
99 #ifndef FSFILT_IOC_GETFLAGS
100 #define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
101 #define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
102 #define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
103 #define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
104 #define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
105 #define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
108 /* FIEMAP flags supported by Lustre */
109 #define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
111 enum obd_statfs_state {
112 OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
113 OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
114 OS_STATE_ENOSPC = 0x00000020, /**< not enough free space */
115 OS_STATE_ENOINO = 0x00000040, /**< not enough inodes */
129 __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
130 __u32 os_fprecreated; /* objs available now to the caller */
131 /* used in QoS code to find preferred
146 * FID is a cluster-wide unique identifier of a file or an object (stripe).
147 * FIDs are never reused.
151 * FID sequence. Sequence is a unit of migration: all files (objects)
152 * with FIDs from a given sequence are stored on the same server.
153 * Lustre should support 2^64 objects, so even if each sequence
154 * has only a single object we can still enumerate 2^64 objects.
157 /* FID number within sequence. */
160 * FID version, used to distinguish different versions (in the sense
161 * of snapshots, etc.) of the same file system object. Not currently
167 static inline bool fid_is_zero(const struct lu_fid *fid)
169 return fid->f_seq == 0 && fid->f_oid == 0;
172 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
173 * MDT-object's FID::f_ver, instead it is the OST-object index in its
174 * parent MDT-object's layout EA. */
175 #define f_stripe_idx f_ver
178 __u32 ol_stripe_size;
179 __u32 ol_stripe_count;
183 } __attribute__((packed));
185 /* keep this one for compatibility */
186 struct filter_fid_old {
187 struct lu_fid ff_parent;
193 struct lu_fid ff_parent;
194 struct ost_layout ff_layout;
195 } __attribute__((packed));
197 /* Userspace should treat lu_fid as opaque, and only use the following methods
198 * to print or parse them. Other functions (e.g. compare, swab) could be moved
199 * here from lustre_idl.h if needed. */
200 typedef struct lu_fid lustre_fid;
203 LMAC_HSM = 0x00000001,
204 /* LMAC_SOM = 0x00000002, obsolete since 2.8.0 */
205 LMAC_NOT_IN_OI = 0x00000004, /* the object does NOT need OI mapping */
206 LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
207 * under /O/<seq>/d<x>. */
208 LMAC_STRIPE_INFO = 0x00000010, /* stripe info in the LMA EA. */
209 LMAC_COMP_INFO = 0x00000020, /* Component info in the LMA EA. */
213 * Masks for all features that should be supported by a Lustre version to
214 * access a specific file.
215 * This information is stored in lustre_mdt_attrs::lma_incompat.
218 LMAI_RELEASED = 0x00000001, /* file is released */
219 LMAI_AGENT = 0x00000002, /* agent inode */
220 LMAI_REMOTE_PARENT = 0x00000004, /* the parent of the object
221 is on the remote MDT */
222 LMAI_STRIPED = 0x00000008, /* striped directory inode */
223 LMAI_ORPHAN = 0x00000010, /* inode is orphan */
224 LMA_INCOMPAT_SUPP = (LMAI_AGENT | LMAI_REMOTE_PARENT | \
225 LMAI_STRIPED | LMAI_ORPHAN)
230 * Following struct for object attributes, that will be kept inode's EA.
231 * Introduced in 2.0 release (please see b15993, for details)
232 * Added to all objects since Lustre 2.4 as contains self FID
234 struct lustre_mdt_attrs {
236 * Bitfield for supported data in this structure. From enum lma_compat.
237 * lma_self_fid and lma_flags are always available.
241 * Per-file incompat feature list. Lustre version should support all
242 * flags set in this field. The supported feature mask is available in
246 /** FID of this inode */
247 struct lu_fid lma_self_fid;
250 struct lustre_ost_attrs {
251 /* Use lustre_mdt_attrs directly for now, need a common header
252 * structure if want to change lustre_mdt_attrs in future. */
253 struct lustre_mdt_attrs loa_lma;
255 /* Below five elements are for OST-object's PFID EA, the
256 * lma_parent_fid::f_ver is composed of the stripe_count (high 16 bits)
257 * and the stripe_index (low 16 bits), the size should not exceed
258 * 5 * sizeof(__u64)) to be accessable by old Lustre. If the flag
259 * LMAC_STRIPE_INFO is set, then loa_parent_fid and loa_stripe_size
260 * are valid; if the flag LMAC_COMP_INFO is set, then the next three
261 * loa_comp_* elements are valid. */
262 struct lu_fid loa_parent_fid;
263 __u32 loa_stripe_size;
265 __u64 loa_comp_start;
270 * Prior to 2.4, the LMA structure also included SOM attributes which has since
271 * been moved to a dedicated xattr
272 * lma_flags was also removed because of lma_compat/incompat fields.
274 #define LMA_OLD_SIZE (sizeof(struct lustre_mdt_attrs) + 5 * sizeof(__u64))
277 * OST object IDentifier.
285 struct lu_fid oi_fid;
289 #define DOSTID "%#llx:%llu"
290 #define POSTID(oi) ((unsigned long long)ostid_seq(oi)), \
291 ((unsigned long long)ostid_id(oi))
293 struct ll_futimes_3 {
295 __u64 lfu_atime_nsec;
297 __u64 lfu_mtime_nsec;
299 __u64 lfu_ctime_nsec;
303 * The ioctl naming rules:
304 * LL_* - works on the currently opened filehandle instead of parent dir
305 * *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
306 * *_MDC_* - gets/sets data related to MDC
307 * *_LOV_* - gets/sets data related to OSC/LOV
308 * *FILE* - called on parent dir and passes in a filename
309 * *STRIPE* - set/get lov_user_md
310 * *INFO - set/get lov_user_mds_data
312 /* lustre_ioctl.h 101-150 */
313 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
314 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
315 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
316 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
317 #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
318 #define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
319 /* LL_IOC_RECREATE_OBJ 157 obsolete */
320 /* LL_IOC_RECREATE_FID 157 obsolete */
321 #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
322 #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
323 /* LL_IOC_QUOTACHECK 160 OBD_IOC_QUOTACHECK */
324 /* LL_IOC_POLL_QUOTACHECK 161 OBD_IOC_POLL_QUOTACHECK */
325 /* LL_IOC_QUOTACTL 162 OBD_IOC_QUOTACTL */
326 #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
327 /* IOC_LOV_GETINFO 165 obsolete */
328 #define LL_IOC_FLUSHCTX _IOW ('f', 166, long)
329 /* LL_IOC_RMTACL 167 obsolete */
330 #define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long)
331 #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long)
332 #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
333 #define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid)
334 #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
335 #define LL_IOC_PATH2FID _IOR ('f', 173, long)
336 #define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *)
337 #define LL_IOC_GET_MDTIDX _IOR ('f', 175, int)
338 #define LL_IOC_FUTIMES_3 _IOWR('f', 176, struct ll_futimes_3)
339 /* lustre_ioctl.h 177-210 */
340 #define LL_IOC_HSM_STATE_GET _IOR('f', 211, struct hsm_user_state)
341 #define LL_IOC_HSM_STATE_SET _IOW('f', 212, struct hsm_state_set)
342 #define LL_IOC_HSM_CT_START _IOW('f', 213, struct lustre_kernelcomm)
343 #define LL_IOC_HSM_COPY_START _IOW('f', 214, struct hsm_copy *)
344 #define LL_IOC_HSM_COPY_END _IOW('f', 215, struct hsm_copy *)
345 #define LL_IOC_HSM_PROGRESS _IOW('f', 216, struct hsm_user_request)
346 #define LL_IOC_HSM_REQUEST _IOW('f', 217, struct hsm_user_request)
347 #define LL_IOC_DATA_VERSION _IOR('f', 218, struct ioc_data_version)
348 #define LL_IOC_LOV_SWAP_LAYOUTS _IOW('f', 219, \
349 struct lustre_swap_layouts)
350 #define LL_IOC_HSM_ACTION _IOR('f', 220, \
351 struct hsm_current_action)
352 /* lustre_ioctl.h 221-232 */
353 #define LL_IOC_LMV_SETSTRIPE _IOWR('f', 240, struct lmv_user_md)
354 #define LL_IOC_LMV_GETSTRIPE _IOWR('f', 241, struct lmv_user_md)
355 #define LL_IOC_REMOVE_ENTRY _IOWR('f', 242, __u64)
356 #define LL_IOC_SET_LEASE _IOWR('f', 243, long)
357 #define LL_IOC_GET_LEASE _IO('f', 244)
358 #define LL_IOC_HSM_IMPORT _IOWR('f', 245, struct hsm_user_import)
359 #define LL_IOC_LMV_SET_DEFAULT_STRIPE _IOWR('f', 246, struct lmv_user_md)
360 #define LL_IOC_MIGRATE _IOR('f', 247, int)
361 #define LL_IOC_FID2MDTIDX _IOWR('f', 248, struct lu_fid)
362 #define LL_IOC_GETPARENT _IOWR('f', 249, struct getparent)
363 #define LL_IOC_LADVISE _IOR('f', 250, struct llapi_lu_ladvise)
365 #ifndef FS_IOC_FSGETXATTR
367 * Structure for FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR.
370 __u32 fsx_xflags; /* xflags field value (get/set) */
371 __u32 fsx_extsize; /* extsize field value (get/set)*/
372 __u32 fsx_nextents; /* nextents field value (get) */
373 __u32 fsx_projid; /* project identifier (get/set) */
374 unsigned char fsx_pad[12];
376 #define FS_IOC_FSGETXATTR _IOR('X', 31, struct fsxattr)
377 #define FS_IOC_FSSETXATTR _IOW('X', 32, struct fsxattr)
379 #define LL_IOC_FSGETXATTR FS_IOC_FSGETXATTR
380 #define LL_IOC_FSSETXATTR FS_IOC_FSSETXATTR
383 /* Lease types for use as arg and return of LL_IOC_{GET,SET}_LEASE ioctl. */
385 LL_LEASE_RDLCK = 0x1,
386 LL_LEASE_WRLCK = 0x2,
387 LL_LEASE_UNLCK = 0x4,
390 #define LL_STATFS_LMV 1
391 #define LL_STATFS_LOV 2
392 #define LL_STATFS_NODELAY 4
394 #define IOC_MDC_TYPE 'i'
395 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
396 #define IOC_MDC_GETFILESTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
397 #define IOC_MDC_GETFILEINFO _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
398 #define LL_IOC_MDC_GETINFO _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
400 #define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
402 /* Define O_LOV_DELAY_CREATE to be a mask that is not useful for regular
403 * files, but are unlikely to be used in practice and are not harmful if
404 * used incorrectly. O_NOCTTY and FASYNC are only meaningful for character
405 * devices and are safe for use on new files. See LU-4209. */
406 /* To be compatible with old statically linked binary we keep the check for
407 * the older 0100000000 flag. This is already removed upstream. LU-812. */
408 #define O_LOV_DELAY_CREATE_1_8 0100000000 /* FMODE_NONOTIFY masked in 2.6.36 */
409 #define O_LOV_DELAY_CREATE_MASK (O_NOCTTY | FASYNC)
410 #define O_LOV_DELAY_CREATE (O_LOV_DELAY_CREATE_1_8 | \
411 O_LOV_DELAY_CREATE_MASK)
413 #define LL_FILE_IGNORE_LOCK 0x00000001
414 #define LL_FILE_GROUP_LOCKED 0x00000002
415 #define LL_FILE_READAHEA 0x00000004
416 #define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
417 #define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */
419 #define LOV_USER_MAGIC_V1 0x0BD10BD0
420 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1
421 #define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
422 #define LOV_USER_MAGIC_V3 0x0BD30BD0
423 /* 0x0BD40BD0 is occupied by LOV_MAGIC_MIGRATE */
424 #define LOV_USER_MAGIC_SPECIFIC 0x0BD50BD0 /* for specific OSTs */
425 #define LOV_USER_MAGIC_COMP_V1 0x0BD60BD0
427 #define LMV_USER_MAGIC 0x0CD30CD0 /*default lmv magic*/
429 #define LOV_PATTERN_RAID0 0x001
430 #define LOV_PATTERN_RAID1 0x002
431 #define LOV_PATTERN_FIRST 0x100
432 #define LOV_PATTERN_CMOBD 0x200
434 #define LOV_PATTERN_F_MASK 0xffff0000
435 #define LOV_PATTERN_F_HOLE 0x40000000 /* there is hole in LOV EA */
436 #define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
438 static inline bool lov_pattern_supported(__u32 pattern)
440 return pattern == LOV_PATTERN_RAID0 ||
441 pattern == (LOV_PATTERN_RAID0 | LOV_PATTERN_F_RELEASED);
444 #define LOV_MAXPOOLNAME 15
445 #define LOV_POOLNAMEF "%.15s"
447 #define LOV_MIN_STRIPE_BITS 16 /* maximum PAGE_SIZE (ia64), power of 2 */
448 #define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS)
449 #define LOV_MAX_STRIPE_COUNT_OLD 160
450 /* This calculation is crafted so that input of 4096 will result in 160
451 * which in turn is equal to old maximal stripe count.
452 * XXX: In fact this is too simpified for now, what it also need is to get
453 * ea_type argument to clearly know how much space each stripe consumes.
455 * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
456 * allocation that is sufficient for the current generation of systems.
458 * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
459 #define LOV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
460 #define LOV_ALL_STRIPES 0xffff /* only valid for directories */
461 #define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
463 #define XATTR_LUSTRE_PREFIX "lustre."
464 #define XATTR_LUSTRE_LOV XATTR_LUSTRE_PREFIX"lov"
466 #define lov_user_ost_data lov_user_ost_data_v1
467 struct lov_user_ost_data_v1 { /* per-stripe data structure */
468 struct ost_id l_ost_oi; /* OST object ID */
469 __u32 l_ost_gen; /* generation of this OST index */
470 __u32 l_ost_idx; /* OST index in LOV */
471 } __attribute__((packed));
473 #define lov_user_md lov_user_md_v1
474 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */
475 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
476 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
477 struct ost_id lmm_oi; /* MDT parent inode id/seq (id/0 for 1.x) */
478 __u32 lmm_stripe_size; /* size of stripe in bytes */
479 __u16 lmm_stripe_count; /* num stripes in use for this object */
481 __u16 lmm_stripe_offset; /* starting stripe offset in
482 * lmm_objects, use when writing */
483 __u16 lmm_layout_gen; /* layout generation number
484 * used when reading */
486 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
487 } __attribute__((packed, __may_alias__));
489 struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
490 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
491 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
492 struct ost_id lmm_oi; /* MDT parent inode id/seq (id/0 for 1.x) */
493 __u32 lmm_stripe_size; /* size of stripe in bytes */
494 __u16 lmm_stripe_count; /* num stripes in use for this object */
496 __u16 lmm_stripe_offset; /* starting stripe offset in
497 * lmm_objects, use when writing */
498 __u16 lmm_layout_gen; /* layout generation number
499 * used when reading */
501 char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
502 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
503 } __attribute__((packed));
510 #define DEXT "[ %#llx , %#llx )"
511 #define PEXT(ext) (ext)->e_start, (ext)->e_end
513 static inline bool lu_extent_is_overlapped(struct lu_extent *e1,
514 struct lu_extent *e2)
516 return e1->e_start < e2->e_end && e2->e_start < e1->e_end;
519 enum lov_comp_md_entry_flags {
520 LCME_FL_PRIMARY = 0x00000001, /* Not used */
521 LCME_FL_STALE = 0x00000002, /* Not used */
522 LCME_FL_OFFLINE = 0x00000004, /* Not used */
523 LCME_FL_PREFERRED = 0x00000008, /* Not used */
524 LCME_FL_INIT = 0x00000010, /* instantiated */
525 LCME_FL_NEG = 0x80000000 /* used to indicate a negative flag,
526 won't be stored on disk */
529 #define LCME_KNOWN_FLAGS (LCME_FL_NEG | LCME_FL_INIT)
531 /* lcme_id can be specified as certain flags, and the the first
532 * bit of lcme_id is used to indicate that the ID is representing
533 * certain LCME_FL_* but not a real ID. Which implies we can have
534 * at most 31 flags (see LCME_FL_XXX). */
537 LCME_ID_MAX = 0x7FFFFFFF,
538 LCME_ID_ALL = 0xFFFFFFFF,
539 LCME_ID_NOT_ID = LCME_FL_NEG
542 #define LCME_ID_MASK LCME_ID_MAX
544 struct lov_comp_md_entry_v1 {
545 __u32 lcme_id; /* unique id of component */
546 __u32 lcme_flags; /* LCME_FL_XXX */
547 struct lu_extent lcme_extent; /* file extent for component */
548 __u32 lcme_offset; /* offset of component blob,
549 start from lov_comp_md_v1 */
550 __u32 lcme_size; /* size of component blob */
551 __u64 lcme_padding[2];
552 } __attribute__((packed));
554 enum lov_comp_md_flags;
556 struct lov_comp_md_v1 {
557 __u32 lcm_magic; /* LOV_USER_MAGIC_COMP_V1 */
558 __u32 lcm_size; /* overall size including this struct */
559 __u32 lcm_layout_gen;
561 __u16 lcm_entry_count;
564 struct lov_comp_md_entry_v1 lcm_entries[0];
565 } __attribute__((packed));
567 static inline __u32 lov_user_md_size(__u16 stripes, __u32 lmm_magic)
569 if (stripes == (__u16)-1)
572 if (lmm_magic == LOV_USER_MAGIC_V1)
573 return sizeof(struct lov_user_md_v1) +
574 stripes * sizeof(struct lov_user_ost_data_v1);
575 return sizeof(struct lov_user_md_v3) +
576 stripes * sizeof(struct lov_user_ost_data_v1);
579 /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
580 * use this. It is unsafe to #define those values in this header as it
581 * is possible the application has already #included <sys/stat.h>. */
582 #ifdef HAVE_LOV_USER_MDS_DATA
583 #define lov_user_mds_data lov_user_mds_data_v1
584 struct lov_user_mds_data_v1 {
585 lstat_t lmd_st; /* MDS stat struct */
586 struct lov_user_md_v1 lmd_lmm; /* LOV EA V1 user data */
587 } __attribute__((packed));
589 struct lov_user_mds_data_v3 {
590 lstat_t lmd_st; /* MDS stat struct */
591 struct lov_user_md_v3 lmd_lmm; /* LOV EA V3 user data */
592 } __attribute__((packed));
595 struct lmv_user_mds_data {
596 struct lu_fid lum_fid;
602 LMV_HASH_TYPE_UNKNOWN = 0, /* 0 is reserved for testing purpose */
603 LMV_HASH_TYPE_ALL_CHARS = 1,
604 LMV_HASH_TYPE_FNV_1A_64 = 2,
608 #define LMV_HASH_NAME_ALL_CHARS "all_char"
609 #define LMV_HASH_NAME_FNV_1A_64 "fnv_1a_64"
611 extern char *mdt_hash_name[LMV_HASH_TYPE_MAX];
613 /* Got this according to how get LOV_MAX_STRIPE_COUNT, see above,
614 * (max buffer size - lmv+rpc header) / sizeof(struct lmv_user_mds_data) */
615 #define LMV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
616 #define lmv_user_md lmv_user_md_v1
617 struct lmv_user_md_v1 {
618 __u32 lum_magic; /* must be the first field */
619 __u32 lum_stripe_count; /* dirstripe count */
620 __u32 lum_stripe_offset; /* MDT idx for default dirstripe */
621 __u32 lum_hash_type; /* Dir stripe policy */
622 __u32 lum_type; /* LMV type: default or normal */
626 char lum_pool_name[LOV_MAXPOOLNAME + 1];
627 struct lmv_user_mds_data lum_objects[0];
628 } __attribute__((packed));
630 static inline int lmv_user_md_size(int stripes, int lmm_magic)
632 return sizeof(struct lmv_user_md) +
633 stripes * sizeof(struct lmv_user_mds_data);
636 struct ll_recreate_obj {
642 __u64 id; /* holds object id */
643 __u32 generation; /* holds object generation */
644 __u32 f_type; /* holds object type or stripe idx when passing it to
645 * OST for saving into EA. */
653 static inline bool obd_uuid_equals(const struct obd_uuid *u1,
654 const struct obd_uuid *u2)
656 return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
659 static inline int obd_uuid_empty(struct obd_uuid *uuid)
661 return uuid->uuid[0] == '\0';
664 static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
666 strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
667 uuid->uuid[sizeof(*uuid) - 1] = '\0';
670 /* For printf's only, make sure uuid is terminated */
671 static inline char *obd_uuid2str(const struct obd_uuid *uuid)
676 if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
677 /* Obviously not safe, but for printfs, no real harm done...
678 we're always null-terminated, even in a race. */
679 static char temp[sizeof(*uuid)];
680 memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
681 temp[sizeof(*uuid) - 1] = '\0';
684 return (char *)(uuid->uuid);
687 /* Extract fsname from uuid (or target name) of a target
688 e.g. (myfs-OST0007_UUID -> myfs)
689 see also deuuidify. */
690 static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
694 strncpy(buf, uuid, buflen - 1);
695 buf[buflen - 1] = '\0';
696 p = strrchr(buf, '-');
701 /* printf display format for Lustre FIDs
702 * usage: printf("file FID is "DFID"\n", PFID(fid)); */
703 #define FID_NOBRACE_LEN 40
704 #define FID_LEN (FID_NOBRACE_LEN + 2)
705 #define DFID_NOBRACE "%#llx:0x%x:0x%x"
706 #define DFID "["DFID_NOBRACE"]"
707 #define PFID(fid) (unsigned long long)(fid)->f_seq, (fid)->f_oid, (fid)->f_ver
709 /* scanf input parse format for fids in DFID_NOBRACE format
710 * Need to strip '[' from DFID format first or use "["SFID"]" at caller.
711 * usage: sscanf(fidstr, SFID, RFID(&fid)); */
712 #define SFID "0x%llx:0x%x:0x%x"
713 #define RFID(fid) &((fid)->f_seq), &((fid)->f_oid), &((fid)->f_ver)
715 /********* Quotas **********/
717 #define LUSTRE_QUOTABLOCK_BITS 10
718 #define LUSTRE_QUOTABLOCK_SIZE (1 << LUSTRE_QUOTABLOCK_BITS)
720 static inline __u64 lustre_stoqb(size_t space)
722 return (space + LUSTRE_QUOTABLOCK_SIZE - 1) >> LUSTRE_QUOTABLOCK_BITS;
725 #define Q_QUOTACHECK 0x800100 /* deprecated as of 2.4 */
726 #define Q_INITQUOTA 0x800101 /* deprecated as of 2.4 */
727 #define Q_GETOINFO 0x800102 /* get obd quota info */
728 #define Q_GETOQUOTA 0x800103 /* get obd quotas */
729 #define Q_FINVALIDATE 0x800104 /* deprecated as of 2.4 */
731 /* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
732 #define LUSTRE_Q_QUOTAON 0x800002 /* deprecated as of 2.4 */
733 #define LUSTRE_Q_QUOTAOFF 0x800003 /* deprecated as of 2.4 */
734 #define LUSTRE_Q_GETINFO 0x800005 /* get information about quota files */
735 #define LUSTRE_Q_SETINFO 0x800006 /* set information about quota files */
736 #define LUSTRE_Q_GETQUOTA 0x800007 /* get user quota structure */
737 #define LUSTRE_Q_SETQUOTA 0x800008 /* set user quota structure */
738 /* lustre-specific control commands */
739 #define LUSTRE_Q_INVALIDATE 0x80000b /* deprecated as of 2.4 */
740 #define LUSTRE_Q_FINVALIDATE 0x80000c /* deprecated as of 2.4 */
742 #define ALLQUOTA 255 /* set all quota */
743 static inline char *qtype_name(int qtype)
756 #define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
759 #define N_PERMS_MAX 64
761 struct perm_downcall_data {
767 struct identity_downcall_data {
774 struct perm_downcall_data idd_perms[N_PERMS_MAX];
778 #ifdef NEED_QUOTA_DEFS
780 #define QIF_BLIMITS 1
782 #define QIF_ILIMITS 4
786 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
787 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
788 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
789 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
792 #endif /* !__KERNEL__ */
794 /* lustre volatile file support
795 * file name header: .^L^S^T^R:volatile"
797 #define LUSTRE_VOLATILE_HDR ".\x0c\x13\x14\x12:VOLATILE"
798 #define LUSTRE_VOLATILE_HDR_LEN 14
800 typedef enum lustre_quota_version {
802 } lustre_quota_version_t;
804 /* XXX: same as if_dqinfo struct in kernel */
812 /* XXX: same as if_dqblk struct in kernel, plus one padding */
814 __u64 dqb_bhardlimit;
815 __u64 dqb_bsoftlimit;
817 __u64 dqb_ihardlimit;
818 __u64 dqb_isoftlimit;
840 struct obd_dqinfo qc_dqinfo;
841 struct obd_dqblk qc_dqblk;
843 struct obd_uuid obd_uuid;
846 /* swap layout flags */
847 #define SWAP_LAYOUTS_CHECK_DV1 (1 << 0)
848 #define SWAP_LAYOUTS_CHECK_DV2 (1 << 1)
849 #define SWAP_LAYOUTS_KEEP_MTIME (1 << 2)
850 #define SWAP_LAYOUTS_KEEP_ATIME (1 << 3)
851 #define SWAP_LAYOUTS_CLOSE (1 << 4)
853 /* Swap XATTR_NAME_HSM as well, only on the MDT so far */
854 #define SWAP_LAYOUTS_MDS_HSM (1 << 31)
855 struct lustre_swap_layouts {
864 /********* Changelogs **********/
865 /** Changelog record types */
866 enum changelog_rec_type {
868 CL_CREATE = 1, /* namespace */
869 CL_MKDIR = 2, /* namespace */
870 CL_HARDLINK = 3, /* namespace */
871 CL_SOFTLINK = 4, /* namespace */
872 CL_MKNOD = 5, /* namespace */
873 CL_UNLINK = 6, /* namespace */
874 CL_RMDIR = 7, /* namespace */
875 CL_RENAME = 8, /* namespace */
876 CL_EXT = 9, /* namespace extended record (2nd half of rename) */
877 CL_OPEN = 10, /* not currently used */
878 CL_CLOSE = 11, /* may be written to log only with mtime change */
879 CL_LAYOUT = 12, /* file layout/striping modified */
883 CL_HSM = 16, /* HSM specific events, see flags */
884 CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */
891 static inline const char *changelog_type2str(int type) {
892 static const char *changelog_str[] = {
893 "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
894 "RMDIR", "RENME", "RNMTO", "OPEN", "CLOSE", "LYOUT", "TRUNC",
895 "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME", "MIGRT"
898 if (type >= 0 && type < CL_LAST)
899 return changelog_str[type];
903 /* per-record flags */
904 #define CLF_FLAGSHIFT 12
905 #define CLF_FLAGMASK ((1U << CLF_FLAGSHIFT) - 1)
906 #define CLF_VERMASK (~CLF_FLAGMASK)
907 enum changelog_rec_flags {
908 CLF_VERSION = 0x1000,
911 CLF_SUPPORTED = CLF_VERSION | CLF_RENAME | CLF_JOBID
915 /* Anything under the flagmask may be per-type (if desired) */
916 /* Flags for unlink */
917 #define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
918 #define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
919 /* HSM cleaning needed */
920 /* Flags for rename */
921 #define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink
923 #define CLF_RENAME_LAST_EXISTS 0x0002 /* rename unlink last hardlink of target
924 * has an archive in backend */
927 /* 12b used (from high weight to low weight):
932 #define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
933 #define CLF_HSM_ERR_H 6
934 #define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
935 #define CLF_HSM_EVENT_H 9
936 #define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
937 #define CLF_HSM_FLAG_H 11
938 #define CLF_HSM_SPARE_L 12 /* 4 spare bits */
939 #define CLF_HSM_SPARE_H 15
940 #define CLF_HSM_LAST 15
942 /* Remove bits higher than _h, then extract the value
943 * between _h and _l by shifting lower weigth to bit 0. */
944 #define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
945 >> (CLF_HSM_LAST - _h + _l))
947 #define CLF_HSM_SUCCESS 0x00
948 #define CLF_HSM_MAXERROR 0x7E
949 #define CLF_HSM_ERROVERFLOW 0x7F
951 #define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
953 /* 3 bits field => 8 values allowed */
965 static inline enum hsm_event hsm_get_cl_event(__u16 flags)
967 return (enum hsm_event)CLF_GET_BITS(flags, CLF_HSM_EVENT_H,
971 static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
973 *flags |= (he << CLF_HSM_EVENT_L);
976 static inline __u16 hsm_get_cl_flags(int flags)
978 return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
981 static inline void hsm_set_cl_flags(int *flags, int bits)
983 *flags |= (bits << CLF_HSM_FLAG_L);
986 static inline int hsm_get_cl_error(int flags)
988 return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
991 static inline void hsm_set_cl_error(int *flags, int error)
993 *flags |= (error << CLF_HSM_ERR_L);
996 enum changelog_send_flag {
997 /* Not yet implemented */
998 CHANGELOG_FLAG_FOLLOW = 0x01,
999 /* Blocking IO makes sense in case of slow user parsing of the records,
1000 * but it also prevents us from cleaning up if the records are not
1002 CHANGELOG_FLAG_BLOCK = 0x02,
1003 /* Pack jobid into the changelog records if available. */
1004 CHANGELOG_FLAG_JOBID = 0x04,
1007 #define CR_MAXSIZE cfs_size_round(2 * NAME_MAX + 2 + \
1008 changelog_rec_offset(CLF_SUPPORTED))
1010 /* 31 usable bytes string + null terminator. */
1011 #define LUSTRE_JOBID_SIZE 32
1013 /* This is the minimal changelog record. It can contain extensions
1014 * such as rename fields or process jobid. Its exact content is described
1017 * Extensions are packed in the same order as their corresponding flags.
1019 struct changelog_rec {
1021 __u16 cr_flags; /**< \a changelog_rec_flags */
1022 __u32 cr_type; /**< \a changelog_rec_type */
1023 __u64 cr_index; /**< changelog record number */
1024 __u64 cr_prev; /**< last index for this target fid */
1027 lustre_fid cr_tfid; /**< target fid */
1028 __u32 cr_markerflags; /**< CL_MARK flags */
1030 lustre_fid cr_pfid; /**< parent fid */
1033 /* Changelog extension for RENAME. */
1034 struct changelog_ext_rename {
1035 lustre_fid cr_sfid; /**< source fid, or zero */
1036 lustre_fid cr_spfid; /**< source parent fid, or zero */
1039 /* Changelog extension to include JOBID. */
1040 struct changelog_ext_jobid {
1041 char cr_jobid[LUSTRE_JOBID_SIZE]; /**< zero-terminated string. */
1045 static inline size_t changelog_rec_offset(enum changelog_rec_flags crf)
1047 size_t size = sizeof(struct changelog_rec);
1049 if (crf & CLF_RENAME)
1050 size += sizeof(struct changelog_ext_rename);
1052 if (crf & CLF_JOBID)
1053 size += sizeof(struct changelog_ext_jobid);
1058 static inline size_t changelog_rec_size(const struct changelog_rec *rec)
1060 return changelog_rec_offset(rec->cr_flags);
1063 static inline size_t changelog_rec_varsize(const struct changelog_rec *rec)
1065 return changelog_rec_size(rec) - sizeof(*rec) + rec->cr_namelen;
1069 struct changelog_ext_rename *changelog_rec_rename(const struct changelog_rec *rec)
1071 enum changelog_rec_flags crf = rec->cr_flags & CLF_VERSION;
1073 return (struct changelog_ext_rename *)((char *)rec +
1074 changelog_rec_offset(crf));
1077 /* The jobid follows the rename extension, if present */
1079 struct changelog_ext_jobid *changelog_rec_jobid(const struct changelog_rec *rec)
1081 enum changelog_rec_flags crf = rec->cr_flags &
1082 (CLF_VERSION | CLF_RENAME);
1084 return (struct changelog_ext_jobid *)((char *)rec +
1085 changelog_rec_offset(crf));
1088 /* The name follows the rename and jobid extensions, if present */
1089 static inline char *changelog_rec_name(const struct changelog_rec *rec)
1091 return (char *)rec + changelog_rec_offset(rec->cr_flags &
1095 static inline size_t changelog_rec_snamelen(const struct changelog_rec *rec)
1097 return rec->cr_namelen - strlen(changelog_rec_name(rec)) - 1;
1100 static inline char *changelog_rec_sname(const struct changelog_rec *rec)
1102 char *cr_name = changelog_rec_name(rec);
1104 return cr_name + strlen(cr_name) + 1;
1108 * Remap a record to the desired format as specified by the crf flags.
1109 * The record must be big enough to contain the final remapped version.
1110 * Superfluous extension fields are removed and missing ones are added
1111 * and zeroed. The flags of the record are updated accordingly.
1113 * The jobid and rename extensions can be added to a record, to match the
1114 * format an application expects, typically. In this case, the newly added
1115 * fields will be zeroed.
1116 * The Jobid field can be removed, to guarantee compatibility with older
1117 * clients that don't expect this field in the records they process.
1119 * The following assumptions are being made:
1120 * - CLF_RENAME will not be removed
1121 * - CLF_JOBID will not be added without CLF_RENAME being added too
1123 * @param[in,out] rec The record to remap.
1124 * @param[in] crf_wanted Flags describing the desired extensions.
1126 static inline void changelog_remap_rec(struct changelog_rec *rec,
1127 enum changelog_rec_flags crf_wanted)
1132 crf_wanted &= CLF_SUPPORTED;
1134 if ((rec->cr_flags & CLF_SUPPORTED) == crf_wanted)
1137 /* First move the variable-length name field */
1138 memmove((char *)rec + changelog_rec_offset(crf_wanted),
1139 changelog_rec_name(rec), rec->cr_namelen);
1141 /* Locations of jobid and rename extensions in the remapped record */
1142 jid_mov = (char *)rec +
1143 changelog_rec_offset(crf_wanted & ~CLF_JOBID);
1144 rnm_mov = (char *)rec +
1145 changelog_rec_offset(crf_wanted & ~(CLF_JOBID | CLF_RENAME));
1147 /* Move the extension fields to the desired positions */
1148 if ((crf_wanted & CLF_JOBID) && (rec->cr_flags & CLF_JOBID))
1149 memmove(jid_mov, changelog_rec_jobid(rec),
1150 sizeof(struct changelog_ext_jobid));
1152 if ((crf_wanted & CLF_RENAME) && (rec->cr_flags & CLF_RENAME))
1153 memmove(rnm_mov, changelog_rec_rename(rec),
1154 sizeof(struct changelog_ext_rename));
1156 /* Clear newly added fields */
1157 if ((crf_wanted & CLF_JOBID) && !(rec->cr_flags & CLF_JOBID))
1158 memset(jid_mov, 0, sizeof(struct changelog_ext_jobid));
1160 if ((crf_wanted & CLF_RENAME) && !(rec->cr_flags & CLF_RENAME))
1161 memset(rnm_mov, 0, sizeof(struct changelog_ext_rename));
1163 /* Update the record's flags accordingly */
1164 rec->cr_flags = (rec->cr_flags & CLF_FLAGMASK) | crf_wanted;
1167 enum changelog_message_type {
1168 CL_RECORD = 10, /* message is a changelog_rec */
1169 CL_EOF = 11, /* at end of current changelog */
1172 /********* Misc **********/
1174 struct ioc_data_version {
1176 __u64 idv_flags; /* See LL_DV_xxx */
1178 #define LL_DV_RD_FLUSH (1 << 0) /* Flush dirty pages from clients */
1179 #define LL_DV_WR_FLUSH (1 << 1) /* Flush all caching pages from clients */
1182 #define offsetof(typ, memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
1185 #define dot_lustre_name ".lustre"
1188 /********* HSM **********/
1190 /** HSM per-file state
1191 * See HSM_FLAGS below.
1194 HS_NONE = 0x00000000,
1195 HS_EXISTS = 0x00000001,
1196 HS_DIRTY = 0x00000002,
1197 HS_RELEASED = 0x00000004,
1198 HS_ARCHIVED = 0x00000008,
1199 HS_NORELEASE = 0x00000010,
1200 HS_NOARCHIVE = 0x00000020,
1201 HS_LOST = 0x00000040,
1204 /* HSM user-setable flags. */
1205 #define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
1207 /* Other HSM flags. */
1208 #define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
1211 * All HSM-related possible flags that could be applied to a file.
1212 * This should be kept in sync with hsm_states.
1214 #define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK)
1217 * HSMÂ request progress state
1219 enum hsm_progress_states {
1226 static inline const char *hsm_progress_state2name(enum hsm_progress_states s)
1229 case HPS_WAITING: return "waiting";
1230 case HPS_RUNNING: return "running";
1231 case HPS_DONE: return "done";
1232 default: return "unknown";
1239 } __attribute__((packed));
1242 * Current HSM states of a Lustre file.
1244 * This structure purpose is to be sent to user-space mainly. It describes the
1245 * current HSM flags and in-progress action.
1247 struct hsm_user_state {
1248 /** Current HSM states, from enum hsm_states. */
1250 __u32 hus_archive_id;
1251 /** The current undergoing action, if there is one */
1252 __u32 hus_in_progress_state;
1253 __u32 hus_in_progress_action;
1254 struct hsm_extent hus_in_progress_location;
1255 char hus_extended_info[];
1258 struct hsm_state_set_ioc {
1259 struct lu_fid hssi_fid;
1261 __u64 hssi_clearmask;
1265 * This structure describes the current in-progress action for a file.
1266 * it is retuned to user space and send over the wire
1268 struct hsm_current_action {
1269 /** The current undergoing action, if there is one */
1270 /* state is one of hsm_progress_states */
1272 /* action is one of hsm_user_action */
1274 struct hsm_extent hca_location;
1277 /***** HSM user requests ******/
1278 /* User-generated (lfs/ioctl) request types */
1279 enum hsm_user_action {
1280 HUA_NONE = 1, /* no action (noop) */
1281 HUA_ARCHIVE = 10, /* copy to hsm */
1282 HUA_RESTORE = 11, /* prestage */
1283 HUA_RELEASE = 12, /* drop ost objects */
1284 HUA_REMOVE = 13, /* remove from archive */
1285 HUA_CANCEL = 14 /* cancel a request */
1288 static inline const char *hsm_user_action2name(enum hsm_user_action a)
1291 case HUA_NONE: return "NOOP";
1292 case HUA_ARCHIVE: return "ARCHIVE";
1293 case HUA_RESTORE: return "RESTORE";
1294 case HUA_RELEASE: return "RELEASE";
1295 case HUA_REMOVE: return "REMOVE";
1296 case HUA_CANCEL: return "CANCEL";
1297 default: return "UNKNOWN";
1302 * List of hr_flags (bit field)
1304 #define HSM_FORCE_ACTION 0x0001
1305 /* used by CT, cannot be set by user */
1306 #define HSM_GHOST_COPY 0x0002
1309 * Contains all the fixed part of struct hsm_user_request.
1312 struct hsm_request {
1313 __u32 hr_action; /* enum hsm_user_action */
1314 __u32 hr_archive_id; /* archive id, used only with HUA_ARCHIVE */
1315 __u64 hr_flags; /* request flags */
1316 __u32 hr_itemcount; /* item count in hur_user_item vector */
1320 struct hsm_user_item {
1322 struct hsm_extent hui_extent;
1323 } __attribute__((packed));
1325 struct hsm_user_request {
1326 struct hsm_request hur_request;
1327 struct hsm_user_item hur_user_item[0];
1328 /* extra data blob at end of struct (after all
1329 * hur_user_items), only use helpers to access it
1331 } __attribute__((packed));
1333 /** Return pointer to data field in a hsm user request */
1334 static inline void *hur_data(struct hsm_user_request *hur)
1336 return &(hur->hur_user_item[hur->hur_request.hr_itemcount]);
1340 * Compute the current length of the provided hsm_user_request. This returns -1
1341 * instead of an errno because ssize_t is defined to be only [ -1, SSIZE_MAX ]
1343 * return -1 on bounds check error.
1345 static inline ssize_t hur_len(struct hsm_user_request *hur)
1349 /* can't overflow a __u64 since hr_itemcount is only __u32 */
1350 size = offsetof(struct hsm_user_request, hur_user_item[0]) +
1351 (__u64)hur->hur_request.hr_itemcount *
1352 sizeof(hur->hur_user_item[0]) + hur->hur_request.hr_data_len;
1354 if (size != (ssize_t)size)
1360 /****** HSM RPCs to copytool *****/
1361 /* Message types the copytool may receive */
1362 enum hsm_message_type {
1363 HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
1366 /* Actions the copytool may be instructed to take for a given action_item */
1367 enum hsm_copytool_action {
1368 HSMA_NONE = 10, /* no action */
1369 HSMA_ARCHIVE = 20, /* arbitrary offset */
1375 static inline const char *hsm_copytool_action2name(enum hsm_copytool_action a)
1378 case HSMA_NONE: return "NOOP";
1379 case HSMA_ARCHIVE: return "ARCHIVE";
1380 case HSMA_RESTORE: return "RESTORE";
1381 case HSMA_REMOVE: return "REMOVE";
1382 case HSMA_CANCEL: return "CANCEL";
1383 default: return "UNKNOWN";
1387 /* Copytool item action description */
1388 struct hsm_action_item {
1389 __u32 hai_len; /* valid size of this struct */
1390 __u32 hai_action; /* hsm_copytool_action, but use known size */
1391 lustre_fid hai_fid; /* Lustre FID to operate on */
1392 lustre_fid hai_dfid; /* fid used for data access */
1393 struct hsm_extent hai_extent; /* byte range to operate on */
1394 __u64 hai_cookie; /* action cookie from coordinator */
1395 __u64 hai_gid; /* grouplock id */
1396 char hai_data[0]; /* variable length */
1397 } __attribute__((packed));
1400 * helper function which print in hexa the first bytes of
1403 * \param hai [IN] record to print
1404 * \param buffer [IN,OUT] buffer to write the hex string to
1405 * \param len [IN] max buffer length
1409 static inline char *hai_dump_data_field(const struct hsm_action_item *hai,
1410 char *buffer, size_t len)
1417 data_len = hai->hai_len - sizeof(*hai);
1418 for (i = 0; (i < data_len) && (len > 2); i++) {
1419 snprintf(ptr, 3, "%02X", (unsigned char)hai->hai_data[i]);
1429 /* Copytool action list */
1430 #define HAL_VERSION 1
1431 #define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */
1432 struct hsm_action_list {
1434 __u32 hal_count; /* number of hai's to follow */
1435 __u64 hal_compound_id; /* returned by coordinator */
1437 __u32 hal_archive_id; /* which archive backend */
1439 char hal_fsname[0]; /* null-terminated */
1440 /* struct hsm_action_item[hal_count] follows, aligned on 8-byte
1441 boundaries. See hai_zero */
1442 } __attribute__((packed));
1444 #ifndef HAVE_CFS_SIZE_ROUND
1445 static inline int cfs_size_round (int val)
1447 return (val + 7) & (~0x7);
1449 #define HAVE_CFS_SIZE_ROUND
1452 /* Return pointer to first hai in action list */
1453 static inline struct hsm_action_item *hai_first(struct hsm_action_list *hal)
1455 return (struct hsm_action_item *)(hal->hal_fsname +
1456 cfs_size_round(strlen(hal-> \
1460 /* Return pointer to next hai */
1461 static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
1463 return (struct hsm_action_item *)((char *)hai +
1464 cfs_size_round(hai->hai_len));
1467 /* Return size of an hsm_action_list */
1468 static inline size_t hal_size(struct hsm_action_list *hal)
1472 struct hsm_action_item *hai;
1474 sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname) + 1);
1475 hai = hai_first(hal);
1476 for (i = 0; i < hal->hal_count ; i++, hai = hai_next(hai))
1477 sz += cfs_size_round(hai->hai_len);
1483 * describe the attributes to be set on imported file
1485 struct hsm_user_import {
1494 __u32 hui_archive_id;
1497 /* Copytool progress reporting */
1498 #define HP_FLAG_COMPLETED 0x01
1499 #define HP_FLAG_RETRY 0x02
1501 struct hsm_progress {
1504 struct hsm_extent hp_extent;
1506 __u16 hp_errval; /* positive val */
1511 __u64 hc_data_version;
1513 __u16 hc_errval; /* positive val */
1515 struct hsm_action_item hc_hai;
1519 enum llapi_json_types {
1520 LLAPI_JSON_INTEGER = 1,
1526 struct llapi_json_item {
1535 struct llapi_json_item *lji_next;
1538 struct llapi_json_item_list {
1539 int ljil_item_count;
1540 struct llapi_json_item *ljil_items;
1543 enum lu_ladvise_type {
1544 LU_LADVISE_INVALID = 0,
1545 LU_LADVISE_WILLREAD = 1,
1546 LU_LADVISE_DONTNEED = 2,
1549 #define LU_LADVISE_NAMES { \
1550 [LU_LADVISE_WILLREAD] = "willread", \
1551 [LU_LADVISE_DONTNEED] = "dontneed", \
1554 /* This is the userspace argument for ladvise. It is currently the same as
1555 * what goes on the wire (struct lu_ladvise), but is defined separately as we
1556 * may need info which is only used locally. */
1557 struct llapi_lu_ladvise {
1558 __u16 lla_advice; /* advice type */
1559 __u16 lla_value1; /* values for different advice types */
1561 __u64 lla_start; /* first byte of extent for advice */
1562 __u64 lla_end; /* last byte of extent for advice */
1568 LF_ASYNC = 0x00000001,
1571 #define LADVISE_MAGIC 0x1ADF1CE0
1572 #define LF_MASK LF_ASYNC
1574 /* This is the userspace argument for ladvise, corresponds to ladvise_hdr which
1575 * is used on the wire. It is defined separately as we may need info which is
1576 * only used locally. */
1577 struct llapi_ladvise_hdr {
1578 __u32 lah_magic; /* LADVISE_MAGIC */
1579 __u32 lah_count; /* number of advices */
1580 __u64 lah_flags; /* from enum ladvise_flag */
1581 __u32 lah_value1; /* unused */
1582 __u32 lah_value2; /* unused */
1583 __u64 lah_value3; /* unused */
1584 struct llapi_lu_ladvise lah_advise[0]; /* advices in this header */
1587 #define LAH_COUNT_MAX (1024)
1591 SK_CRYPT_INVALID = -1,
1593 SK_CRYPT_AES256_CTR = 1,
1597 struct sk_crypt_type {
1599 unsigned int cht_key;
1600 unsigned int cht_bytes;
1603 /** @} lustreuser */
1604 #endif /* _LUSTRE_USER_H */