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, 2014, 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
38 #include <linux/user_namespace.h>
39 #ifdef HAVE_UIDGID_HEADER
40 # include <linux/uidgid.h>
42 #include <lustre_net.h>
43 #include <lustre/lustre_idl.h>
44 #include <obd_class.h>
46 #include <cl_object.h>
47 #include "mdc_internal.h"
50 static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
54 b->mbo_suppgid = suppgid;
55 b->mbo_uid = from_kuid(&init_user_ns, current_uid());
56 b->mbo_gid = from_kgid(&init_user_ns, current_gid());
57 b->mbo_fsuid = from_kuid(&init_user_ns, current_fsuid());
58 b->mbo_fsgid = from_kgid(&init_user_ns, current_fsgid());
59 b->mbo_capability = cfs_curproc_cap_pack();
62 void mdc_pack_capa(struct ptlrpc_request *req, const struct req_msg_field *field,
65 struct req_capsule *pill = &req->rq_pill;
66 struct lustre_capa *c;
69 LASSERT(req_capsule_get_size(pill, field, RCL_CLIENT) == 0);
73 c = req_capsule_client_get(pill, field);
76 DEBUG_CAPA(D_SEC, c, "pack");
79 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
80 struct md_op_data *op_data)
82 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
85 __mdc_pack_body(b, op_data->op_suppgids[0]);
86 b->mbo_fid1 = op_data->op_fid1;
87 b->mbo_fid2 = op_data->op_fid2;
88 b->mbo_valid |= OBD_MD_FLID;
90 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
91 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
94 void mdc_pack_body(struct ptlrpc_request *req,
95 const struct lu_fid *fid, struct obd_capa *oc,
96 __u64 valid, size_t ea_size, __u32 suppgid, __u32 flags)
98 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
101 b->mbo_valid = valid;
102 b->mbo_eadatasize = ea_size;
103 b->mbo_flags = flags;
104 __mdc_pack_body(b, suppgid);
107 b->mbo_valid |= OBD_MD_FLID;
108 mdc_pack_capa(req, &RMF_CAPA1, oc);
113 * Pack a name (path component) into a request
115 * \param[in] req request
116 * \param[in] field request field (usually RMF_NAME)
117 * \param[in] name path component
118 * \param[in] name_len length of path component
120 * \a field must be present in \a req and of size \a name_len + 1.
122 * \a name must be '\0' terminated of length \a name_len and represent
123 * a single path component (not contain '/').
125 static void mdc_pack_name(struct ptlrpc_request *req,
126 const struct req_msg_field *field,
127 const char *name, size_t name_len)
133 buf = req_capsule_client_get(&req->rq_pill, field);
134 buf_size = req_capsule_get_size(&req->rq_pill, field, RCL_CLIENT);
136 LASSERT(name != NULL && name_len != 0 &&
137 buf != NULL && buf_size == name_len + 1);
139 cpy_len = strlcpy(buf, name, buf_size);
141 LASSERT(cpy_len == name_len && lu_name_is_valid_2(buf, cpy_len));
144 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, size_t size,
145 const struct lu_fid *fid, struct obd_capa *oc)
147 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
150 b->mbo_valid |= OBD_MD_FLID;
151 b->mbo_size = pgoff; /* !! */
152 b->mbo_nlink = size; /* !! */
153 __mdc_pack_body(b, -1);
154 b->mbo_mode = LUDA_FID | LUDA_TYPE;
156 mdc_pack_capa(req, &RMF_CAPA1, oc);
159 /* packing of MDS records */
160 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
161 const void *data, size_t datalen, umode_t mode,
162 uid_t uid, gid_t gid, cfs_cap_t cap_effective, __u64 rdev)
164 struct mdt_rec_create *rec;
168 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
169 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
172 rec->cr_opcode = REINT_CREATE;
175 rec->cr_cap = cap_effective;
176 rec->cr_fid1 = op_data->op_fid1;
177 rec->cr_fid2 = op_data->op_fid2;
180 rec->cr_time = op_data->op_mod_time;
181 rec->cr_suppgid1 = op_data->op_suppgids[0];
182 rec->cr_suppgid2 = op_data->op_suppgids[1];
184 if (op_data->op_bias & MDS_CREATE_VOLATILE)
185 flags |= MDS_OPEN_VOLATILE;
186 set_mrc_cr_flags(rec, flags);
187 rec->cr_bias = op_data->op_bias;
188 rec->cr_umask = current_umask();
190 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
192 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
194 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
195 memcpy(tmp, data, datalen);
199 static inline __u64 mds_pack_open_flags(__u64 flags)
201 __u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
202 MDS_OPEN_FL_INTERNAL));
205 cr_flags |= MDS_OPEN_CREAT;
207 cr_flags |= MDS_OPEN_EXCL;
209 cr_flags |= MDS_OPEN_TRUNC;
210 if (flags & O_APPEND)
211 cr_flags |= MDS_OPEN_APPEND;
213 cr_flags |= MDS_OPEN_SYNC;
214 if (flags & O_DIRECTORY)
215 cr_flags |= MDS_OPEN_DIRECTORY;
217 if (flags & FMODE_EXEC)
218 cr_flags |= MDS_FMODE_EXEC;
220 if (cl_is_lov_delay_create(flags))
221 cr_flags |= MDS_OPEN_DELAY_CREATE;
223 if (flags & O_NONBLOCK)
224 cr_flags |= MDS_OPEN_NORESTORE;
229 /* packing of MDS records */
230 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
231 umode_t mode, __u64 rdev, __u64 flags, const void *lmm,
234 struct mdt_rec_create *rec;
238 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
239 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
241 /* XXX do something about time, uid, gid */
242 rec->cr_opcode = REINT_OPEN;
243 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
244 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
245 rec->cr_cap = cfs_curproc_cap_pack();
247 cr_flags = mds_pack_open_flags(flags);
249 rec->cr_umask = current_umask();
250 if (op_data != NULL) {
251 rec->cr_fid1 = op_data->op_fid1;
252 rec->cr_fid2 = op_data->op_fid2;
253 rec->cr_time = op_data->op_mod_time;
254 rec->cr_suppgid1 = op_data->op_suppgids[0];
255 rec->cr_suppgid2 = op_data->op_suppgids[1];
256 rec->cr_bias = op_data->op_bias;
257 rec->cr_old_handle = op_data->op_handle;
259 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
260 /* the next buffer is child capa, which is used for replay,
261 * will be packed from the data in reply message. */
263 if (op_data->op_name) {
264 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
265 op_data->op_namelen);
267 if (op_data->op_bias & MDS_CREATE_VOLATILE)
268 cr_flags |= MDS_OPEN_VOLATILE;
273 cr_flags |= MDS_OPEN_HAS_EA;
274 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
275 memcpy(tmp, lmm, lmmlen);
277 set_mrc_cr_flags(rec, cr_flags);
280 static inline __u64 attr_pack(unsigned int ia_valid) {
283 if (ia_valid & ATTR_MODE)
284 sa_valid |= MDS_ATTR_MODE;
285 if (ia_valid & ATTR_UID)
286 sa_valid |= MDS_ATTR_UID;
287 if (ia_valid & ATTR_GID)
288 sa_valid |= MDS_ATTR_GID;
289 if (ia_valid & ATTR_SIZE)
290 sa_valid |= MDS_ATTR_SIZE;
291 if (ia_valid & ATTR_ATIME)
292 sa_valid |= MDS_ATTR_ATIME;
293 if (ia_valid & ATTR_MTIME)
294 sa_valid |= MDS_ATTR_MTIME;
295 if (ia_valid & ATTR_CTIME)
296 sa_valid |= MDS_ATTR_CTIME;
297 if (ia_valid & ATTR_ATIME_SET)
298 sa_valid |= MDS_ATTR_ATIME_SET;
299 if (ia_valid & ATTR_MTIME_SET)
300 sa_valid |= MDS_ATTR_MTIME_SET;
301 if (ia_valid & ATTR_FORCE)
302 sa_valid |= MDS_ATTR_FORCE;
303 if (ia_valid & ATTR_ATTR_FLAG)
304 sa_valid |= MDS_ATTR_ATTR_FLAG;
305 if (ia_valid & ATTR_KILL_SUID)
306 sa_valid |= MDS_ATTR_KILL_SUID;
307 if (ia_valid & ATTR_KILL_SGID)
308 sa_valid |= MDS_ATTR_KILL_SGID;
309 if (ia_valid & ATTR_CTIME_SET)
310 sa_valid |= MDS_ATTR_CTIME_SET;
311 if (ia_valid & ATTR_FROM_OPEN)
312 sa_valid |= MDS_ATTR_FROM_OPEN;
313 if (ia_valid & ATTR_BLOCKS)
314 sa_valid |= MDS_ATTR_BLOCKS;
315 if (ia_valid & MDS_OPEN_OWNEROVERRIDE)
316 /* NFSD hack (see bug 5781) */
317 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
321 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
322 struct md_op_data *op_data)
324 rec->sa_opcode = REINT_SETATTR;
325 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
326 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
327 rec->sa_cap = cfs_curproc_cap_pack();
328 rec->sa_suppgid = -1;
330 rec->sa_fid = op_data->op_fid1;
331 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid);
332 rec->sa_mode = op_data->op_attr.ia_mode;
333 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
334 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
335 rec->sa_size = op_data->op_attr.ia_size;
336 rec->sa_blocks = op_data->op_attr_blocks;
337 rec->sa_atime = LTIME_S(op_data->op_attr.ia_atime);
338 rec->sa_mtime = LTIME_S(op_data->op_attr.ia_mtime);
339 rec->sa_ctime = LTIME_S(op_data->op_attr.ia_ctime);
340 rec->sa_attr_flags = op_data->op_attr_flags;
341 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
342 in_group_p(op_data->op_attr.ia_gid))
344 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
346 rec->sa_suppgid = op_data->op_suppgids[0];
348 rec->sa_bias = op_data->op_bias;
351 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
352 struct md_op_data *op_data)
354 epoch->mio_handle = op_data->op_handle;
355 epoch->mio_unused1 = 0;
356 epoch->mio_unused2 = 0;
357 epoch->mio_padding = 0;
360 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
361 void *ea, size_t ealen)
363 struct mdt_rec_setattr *rec;
364 struct lov_user_md *lum = NULL;
366 CLASSERT(sizeof(struct mdt_rec_reint) ==sizeof(struct mdt_rec_setattr));
367 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
368 mdc_setattr_pack_rec(rec, op_data);
370 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
375 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
376 if (ea == NULL) { /* Remove LOV EA */
377 lum->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V1);
378 lum->lmm_stripe_size = 0;
379 lum->lmm_stripe_count = 0;
380 lum->lmm_stripe_offset = (typeof(lum->lmm_stripe_offset))(-1);
382 memcpy(lum, ea, ealen);
386 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
388 struct mdt_rec_unlink *rec;
390 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
391 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
392 LASSERT(rec != NULL);
394 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
395 REINT_RMENTRY : REINT_UNLINK;
396 rec->ul_fsuid = op_data->op_fsuid;
397 rec->ul_fsgid = op_data->op_fsgid;
398 rec->ul_cap = op_data->op_cap;
399 rec->ul_mode = op_data->op_mode;
400 rec->ul_suppgid1= op_data->op_suppgids[0];
401 rec->ul_suppgid2= -1;
402 rec->ul_fid1 = op_data->op_fid1;
403 rec->ul_fid2 = op_data->op_fid2;
404 rec->ul_time = op_data->op_mod_time;
405 rec->ul_bias = op_data->op_bias;
407 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
409 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
412 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
414 struct mdt_rec_link *rec;
416 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
417 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
418 LASSERT (rec != NULL);
420 rec->lk_opcode = REINT_LINK;
421 rec->lk_fsuid = op_data->op_fsuid;//current->fsuid;
422 rec->lk_fsgid = op_data->op_fsgid;//current->fsgid;
423 rec->lk_cap = op_data->op_cap;//current->cap_effective;
424 rec->lk_suppgid1 = op_data->op_suppgids[0];
425 rec->lk_suppgid2 = op_data->op_suppgids[1];
426 rec->lk_fid1 = op_data->op_fid1;
427 rec->lk_fid2 = op_data->op_fid2;
428 rec->lk_time = op_data->op_mod_time;
429 rec->lk_bias = op_data->op_bias;
431 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
432 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
434 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
437 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
438 const char *old, size_t oldlen,
439 const char *new, size_t newlen)
441 struct mdt_rec_rename *rec;
443 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
444 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
446 /* XXX do something about time, uid, gid */
447 rec->rn_opcode = op_data->op_cli_flags & CLI_MIGRATE ?
448 REINT_MIGRATE : REINT_RENAME;
449 rec->rn_fsuid = op_data->op_fsuid;
450 rec->rn_fsgid = op_data->op_fsgid;
451 rec->rn_cap = op_data->op_cap;
452 rec->rn_suppgid1 = op_data->op_suppgids[0];
453 rec->rn_suppgid2 = op_data->op_suppgids[1];
454 rec->rn_fid1 = op_data->op_fid1;
455 rec->rn_fid2 = op_data->op_fid2;
456 rec->rn_time = op_data->op_mod_time;
457 rec->rn_mode = op_data->op_mode;
458 rec->rn_bias = op_data->op_bias;
460 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
461 mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
463 mdc_pack_name(req, &RMF_NAME, old, oldlen);
466 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
469 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
470 struct md_op_data *op_data, size_t ea_size)
472 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
475 b->mbo_valid = valid;
476 if (op_data->op_bias & MDS_CHECK_SPLIT)
477 b->mbo_valid |= OBD_MD_FLCKSPLIT;
478 if (op_data->op_bias & MDS_CROSS_REF)
479 b->mbo_valid |= OBD_MD_FLCROSSREF;
480 b->mbo_eadatasize = ea_size;
481 b->mbo_flags = flags;
482 __mdc_pack_body(b, op_data->op_suppgids[0]);
484 b->mbo_fid1 = op_data->op_fid1;
485 b->mbo_fid2 = op_data->op_fid2;
486 b->mbo_valid |= OBD_MD_FLID;
488 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
490 if (op_data->op_name != NULL)
491 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
492 op_data->op_namelen);
495 static void mdc_hsm_release_pack(struct ptlrpc_request *req,
496 struct md_op_data *op_data)
498 if (op_data->op_bias & MDS_HSM_RELEASE) {
499 struct close_data *data;
500 struct ldlm_lock *lock;
502 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
503 LASSERT(data != NULL);
505 lock = ldlm_handle2lock(&op_data->op_lease_handle);
507 data->cd_handle = lock->l_remote_handle;
510 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
512 data->cd_data_version = op_data->op_data_version;
513 data->cd_fid = op_data->op_fid2;
517 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
519 struct mdt_ioepoch *epoch;
520 struct mdt_rec_setattr *rec;
522 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
523 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
525 mdc_setattr_pack_rec(rec, op_data);
526 mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
527 mdc_ioepoch_pack(epoch, op_data);
528 mdc_hsm_release_pack(req, op_data);