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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_MDC
40 # include <liblustre.h>
42 #include <lustre_net.h>
43 #include <lustre/lustre_idl.h>
44 #include <obd_class.h>
46 #include <cl_object.h>
48 #include "mdc_internal.h"
51 /* some liblustre hackings here */
57 static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
61 b->mbo_suppgid = suppgid;
62 b->mbo_uid = from_kuid(&init_user_ns, current_uid());
63 b->mbo_gid = from_kgid(&init_user_ns, current_gid());
64 b->mbo_fsuid = from_kuid(&init_user_ns, current_fsuid());
65 b->mbo_fsgid = from_kgid(&init_user_ns, current_fsgid());
66 b->mbo_capability = cfs_curproc_cap_pack();
69 void mdc_pack_capa(struct ptlrpc_request *req, const struct req_msg_field *field,
72 struct req_capsule *pill = &req->rq_pill;
73 struct lustre_capa *c;
76 LASSERT(req_capsule_get_size(pill, field, RCL_CLIENT) == 0);
80 c = req_capsule_client_get(pill, field);
83 DEBUG_CAPA(D_SEC, c, "pack");
86 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
87 struct md_op_data *op_data)
89 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
92 __mdc_pack_body(b, op_data->op_suppgids[0]);
93 b->mbo_fid1 = op_data->op_fid1;
94 b->mbo_fid2 = op_data->op_fid2;
95 b->mbo_valid |= OBD_MD_FLID;
97 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
98 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
101 void mdc_pack_body(struct ptlrpc_request *req,
102 const struct lu_fid *fid, struct obd_capa *oc,
103 __u64 valid, int ea_size, __u32 suppgid, int flags)
105 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
108 b->mbo_valid = valid;
109 b->mbo_eadatasize = ea_size;
110 b->mbo_flags = flags;
111 __mdc_pack_body(b, suppgid);
114 b->mbo_valid |= OBD_MD_FLID;
115 mdc_pack_capa(req, &RMF_CAPA1, oc);
120 * Pack a name (path component) into a request
122 * \param[in] req request
123 * \param[in] field request field (usually RMF_NAME)
124 * \param[in] name path component
125 * \param[in] name_len length of path component
127 * \a field must be present in \a req and of size \a name_len + 1.
129 * \a name must be '\0' terminated of length \a name_len and represent
130 * a single path component (not contain '/').
132 static void mdc_pack_name(struct ptlrpc_request *req,
133 const struct req_msg_field *field,
134 const char *name, size_t name_len)
140 buf = req_capsule_client_get(&req->rq_pill, field);
141 buf_size = req_capsule_get_size(&req->rq_pill, field, RCL_CLIENT);
143 LASSERT(name != NULL && name_len != 0 &&
144 buf != NULL && buf_size == name_len + 1);
146 cpy_len = strlcpy(buf, name, buf_size);
148 LASSERT(cpy_len == name_len && lu_name_is_valid_2(buf, cpy_len));
151 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff,
152 __u32 size, const struct lu_fid *fid, struct obd_capa *oc)
154 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
157 b->mbo_valid |= OBD_MD_FLID;
158 b->mbo_size = pgoff; /* !! */
159 b->mbo_nlink = size; /* !! */
160 __mdc_pack_body(b, -1);
161 b->mbo_mode = LUDA_FID | LUDA_TYPE;
163 mdc_pack_capa(req, &RMF_CAPA1, oc);
166 /* packing of MDS records */
167 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
168 const void *data, int datalen, __u32 mode,
169 __u32 uid, __u32 gid, cfs_cap_t cap_effective, __u64 rdev)
171 struct mdt_rec_create *rec;
175 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
176 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
179 rec->cr_opcode = REINT_CREATE;
182 rec->cr_cap = cap_effective;
183 rec->cr_fid1 = op_data->op_fid1;
184 rec->cr_fid2 = op_data->op_fid2;
187 rec->cr_time = op_data->op_mod_time;
188 rec->cr_suppgid1 = op_data->op_suppgids[0];
189 rec->cr_suppgid2 = op_data->op_suppgids[1];
190 flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
191 if (op_data->op_bias & MDS_CREATE_VOLATILE)
192 flags |= MDS_OPEN_VOLATILE;
193 set_mrc_cr_flags(rec, flags);
194 rec->cr_bias = op_data->op_bias;
195 rec->cr_umask = current_umask();
197 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
199 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
201 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
202 memcpy(tmp, data, datalen);
206 static __u64 mds_pack_open_flags(__u64 flags, __u32 mode)
208 __u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
209 MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS |
210 MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK |
211 MDS_OPEN_BY_FID | MDS_OPEN_LEASE |
214 cr_flags |= MDS_OPEN_CREAT;
216 cr_flags |= MDS_OPEN_EXCL;
218 cr_flags |= MDS_OPEN_TRUNC;
219 if (flags & O_APPEND)
220 cr_flags |= MDS_OPEN_APPEND;
222 cr_flags |= MDS_OPEN_SYNC;
223 if (flags & O_DIRECTORY)
224 cr_flags |= MDS_OPEN_DIRECTORY;
226 if (flags & FMODE_EXEC)
227 cr_flags |= MDS_FMODE_EXEC;
229 if (cl_is_lov_delay_create(flags))
230 cr_flags |= MDS_OPEN_DELAY_CREATE;
232 if ((flags & O_NOACCESS) || (flags & O_NONBLOCK))
233 cr_flags |= MDS_OPEN_NORESTORE;
238 /* packing of MDS records */
239 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
240 __u32 mode, __u64 rdev, __u64 flags, const void *lmm,
243 struct mdt_rec_create *rec;
247 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
248 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
250 /* XXX do something about time, uid, gid */
251 rec->cr_opcode = REINT_OPEN;
252 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
253 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
254 rec->cr_cap = cfs_curproc_cap_pack();
256 cr_flags = mds_pack_open_flags(flags, mode);
258 rec->cr_umask = current_umask();
259 if (op_data != NULL) {
260 rec->cr_fid1 = op_data->op_fid1;
261 rec->cr_fid2 = op_data->op_fid2;
262 rec->cr_time = op_data->op_mod_time;
263 rec->cr_suppgid1 = op_data->op_suppgids[0];
264 rec->cr_suppgid2 = op_data->op_suppgids[1];
265 rec->cr_bias = op_data->op_bias;
266 rec->cr_old_handle = op_data->op_handle;
268 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
269 /* the next buffer is child capa, which is used for replay,
270 * will be packed from the data in reply message. */
272 if (op_data->op_name) {
273 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
274 op_data->op_namelen);
276 if (op_data->op_bias & MDS_CREATE_VOLATILE)
277 cr_flags |= MDS_OPEN_VOLATILE;
280 /*XXX a hack for liblustre to set EA (LL_IOC_LOV_SETSTRIPE) */
281 rec->cr_fid2 = op_data->op_fid2;
286 cr_flags |= MDS_OPEN_HAS_EA;
287 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
288 memcpy(tmp, lmm, lmmlen);
290 set_mrc_cr_flags(rec, cr_flags);
293 static inline __u64 attr_pack(unsigned int ia_valid) {
296 if (ia_valid & ATTR_MODE)
297 sa_valid |= MDS_ATTR_MODE;
298 if (ia_valid & ATTR_UID)
299 sa_valid |= MDS_ATTR_UID;
300 if (ia_valid & ATTR_GID)
301 sa_valid |= MDS_ATTR_GID;
302 if (ia_valid & ATTR_SIZE)
303 sa_valid |= MDS_ATTR_SIZE;
304 if (ia_valid & ATTR_ATIME)
305 sa_valid |= MDS_ATTR_ATIME;
306 if (ia_valid & ATTR_MTIME)
307 sa_valid |= MDS_ATTR_MTIME;
308 if (ia_valid & ATTR_CTIME)
309 sa_valid |= MDS_ATTR_CTIME;
310 if (ia_valid & ATTR_ATIME_SET)
311 sa_valid |= MDS_ATTR_ATIME_SET;
312 if (ia_valid & ATTR_MTIME_SET)
313 sa_valid |= MDS_ATTR_MTIME_SET;
314 if (ia_valid & ATTR_FORCE)
315 sa_valid |= MDS_ATTR_FORCE;
316 if (ia_valid & ATTR_ATTR_FLAG)
317 sa_valid |= MDS_ATTR_ATTR_FLAG;
318 if (ia_valid & ATTR_KILL_SUID)
319 sa_valid |= MDS_ATTR_KILL_SUID;
320 if (ia_valid & ATTR_KILL_SGID)
321 sa_valid |= MDS_ATTR_KILL_SGID;
322 if (ia_valid & ATTR_CTIME_SET)
323 sa_valid |= MDS_ATTR_CTIME_SET;
324 if (ia_valid & ATTR_FROM_OPEN)
325 sa_valid |= MDS_ATTR_FROM_OPEN;
326 if (ia_valid & ATTR_BLOCKS)
327 sa_valid |= MDS_ATTR_BLOCKS;
328 if (ia_valid & MDS_OPEN_OWNEROVERRIDE)
329 /* NFSD hack (see bug 5781) */
330 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
334 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
335 struct md_op_data *op_data)
337 rec->sa_opcode = REINT_SETATTR;
338 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
339 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
340 rec->sa_cap = cfs_curproc_cap_pack();
341 rec->sa_suppgid = -1;
343 rec->sa_fid = op_data->op_fid1;
344 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid);
345 rec->sa_mode = op_data->op_attr.ia_mode;
346 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
347 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
348 rec->sa_size = op_data->op_attr.ia_size;
349 rec->sa_blocks = op_data->op_attr_blocks;
350 rec->sa_atime = LTIME_S(op_data->op_attr.ia_atime);
351 rec->sa_mtime = LTIME_S(op_data->op_attr.ia_mtime);
352 rec->sa_ctime = LTIME_S(op_data->op_attr.ia_ctime);
354 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags;
355 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
356 in_group_p(op_data->op_attr.ia_gid))
358 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
360 rec->sa_suppgid = op_data->op_suppgids[0];
362 rec->sa_bias = op_data->op_bias;
365 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
366 struct md_op_data *op_data)
368 memcpy(&epoch->handle, &op_data->op_handle, sizeof(epoch->handle));
369 epoch->ioepoch = op_data->op_ioepoch;
370 epoch->flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
373 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
374 void *ea, int ealen, void *ea2, int ea2len)
376 struct mdt_rec_setattr *rec;
377 struct mdt_ioepoch *epoch;
378 struct lov_user_md *lum = NULL;
380 CLASSERT(sizeof(struct mdt_rec_reint) ==sizeof(struct mdt_rec_setattr));
381 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
382 mdc_setattr_pack_rec(rec, op_data);
384 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
386 if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) {
387 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
388 mdc_ioepoch_pack(epoch, op_data);
394 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
395 if (ea == NULL) { /* Remove LOV EA */
396 lum->lmm_magic = LOV_USER_MAGIC_V1;
397 lum->lmm_stripe_size = 0;
398 lum->lmm_stripe_count = 0;
399 lum->lmm_stripe_offset = (typeof(lum->lmm_stripe_offset))(-1);
401 memcpy(lum, ea, ealen);
407 memcpy(req_capsule_client_get(&req->rq_pill, &RMF_LOGCOOKIES), ea2,
411 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
413 struct mdt_rec_unlink *rec;
415 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
416 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
417 LASSERT(rec != NULL);
419 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
420 REINT_RMENTRY : REINT_UNLINK;
421 rec->ul_fsuid = op_data->op_fsuid;
422 rec->ul_fsgid = op_data->op_fsgid;
423 rec->ul_cap = op_data->op_cap;
424 rec->ul_mode = op_data->op_mode;
425 rec->ul_suppgid1= op_data->op_suppgids[0];
426 rec->ul_suppgid2= -1;
427 rec->ul_fid1 = op_data->op_fid1;
428 rec->ul_fid2 = op_data->op_fid2;
429 rec->ul_time = op_data->op_mod_time;
430 rec->ul_bias = op_data->op_bias;
432 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
434 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
437 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
439 struct mdt_rec_link *rec;
441 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
442 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
443 LASSERT (rec != NULL);
445 rec->lk_opcode = REINT_LINK;
446 rec->lk_fsuid = op_data->op_fsuid;//current->fsuid;
447 rec->lk_fsgid = op_data->op_fsgid;//current->fsgid;
448 rec->lk_cap = op_data->op_cap;//current->cap_effective;
449 rec->lk_suppgid1 = op_data->op_suppgids[0];
450 rec->lk_suppgid2 = op_data->op_suppgids[1];
451 rec->lk_fid1 = op_data->op_fid1;
452 rec->lk_fid2 = op_data->op_fid2;
453 rec->lk_time = op_data->op_mod_time;
454 rec->lk_bias = op_data->op_bias;
456 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
457 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
459 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
462 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
463 const char *old, int oldlen, const char *new, int newlen)
465 struct mdt_rec_rename *rec;
467 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
468 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
470 /* XXX do something about time, uid, gid */
471 rec->rn_opcode = op_data->op_cli_flags & CLI_MIGRATE ?
472 REINT_MIGRATE : REINT_RENAME;
473 rec->rn_fsuid = op_data->op_fsuid;
474 rec->rn_fsgid = op_data->op_fsgid;
475 rec->rn_cap = op_data->op_cap;
476 rec->rn_suppgid1 = op_data->op_suppgids[0];
477 rec->rn_suppgid2 = op_data->op_suppgids[1];
478 rec->rn_fid1 = op_data->op_fid1;
479 rec->rn_fid2 = op_data->op_fid2;
480 rec->rn_time = op_data->op_mod_time;
481 rec->rn_mode = op_data->op_mode;
482 rec->rn_bias = op_data->op_bias;
484 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
485 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
487 mdc_pack_name(req, &RMF_NAME, old, oldlen);
490 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
493 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
494 struct md_op_data *op_data, int ea_size)
496 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
499 b->mbo_valid = valid;
500 if (op_data->op_bias & MDS_CHECK_SPLIT)
501 b->mbo_valid |= OBD_MD_FLCKSPLIT;
502 if (op_data->op_bias & MDS_CROSS_REF)
503 b->mbo_valid |= OBD_MD_FLCROSSREF;
504 b->mbo_eadatasize = ea_size;
505 b->mbo_flags = flags;
506 __mdc_pack_body(b, op_data->op_suppgids[0]);
508 b->mbo_fid1 = op_data->op_fid1;
509 b->mbo_fid2 = op_data->op_fid2;
510 b->mbo_valid |= OBD_MD_FLID;
512 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
514 if (op_data->op_name != NULL)
515 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
516 op_data->op_namelen);
519 static void mdc_hsm_release_pack(struct ptlrpc_request *req,
520 struct md_op_data *op_data)
522 if (op_data->op_bias & MDS_HSM_RELEASE) {
523 struct close_data *data;
524 struct ldlm_lock *lock;
526 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
527 LASSERT(data != NULL);
529 lock = ldlm_handle2lock(&op_data->op_lease_handle);
531 data->cd_handle = lock->l_remote_handle;
534 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
536 data->cd_data_version = op_data->op_data_version;
537 data->cd_fid = op_data->op_fid2;
541 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
543 struct mdt_ioepoch *epoch;
544 struct mdt_rec_setattr *rec;
546 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
547 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
549 mdc_setattr_pack_rec(rec, op_data);
550 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
551 mdc_ioepoch_pack(epoch, op_data);
552 mdc_hsm_release_pack(req, op_data);