1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copryright (C) 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.sf.net/projects/lustre/
8 * This code is issued under the GNU General Public License.
9 * See the file COPYING in this distribution
11 * Lustre Lite Update Records
14 #include <linux/config.h>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
18 #include <linux/string.h>
19 #include <linux/stat.h>
20 #include <linux/errno.h>
21 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
22 #include <linux/locks.h> // for wait_on_buffer
24 #include <linux/buffer_head.h> // for wait_on_buffer
26 #include <linux/unistd.h>
28 #include <asm/system.h>
29 #include <asm/uaccess.h>
32 #include <linux/stat.h>
33 #include <asm/uaccess.h>
34 #include <linux/slab.h>
35 #include <asm/segment.h>
37 #define DEBUG_SUBSYSTEM S_MDS
39 #include <linux/obd_support.h>
40 #include <linux/lustre_lib.h>
41 #include <linux/lustre_mds.h>
42 #include <linux/lustre_lite.h>
44 void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode)
46 fid->id = HTON__u64(inode->i_ino);
47 fid->generation = HTON__u32(inode->i_generation);
48 fid->f_type = HTON__u32(S_IFMT & inode->i_mode);
52 void mds_pack_inode2body(struct mds_body *b, struct inode *inode)
54 b->valid = OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME |
55 OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLUID | OBD_MD_FLGID |
56 OBD_MD_FLTYPE | OBD_MD_FLMODE | OBD_MD_FLNLINK | OBD_MD_FLGENER;
57 b->ino = HTON__u32(inode->i_ino);
58 b->atime = HTON__u32(inode->i_atime);
59 b->mtime = HTON__u32(inode->i_mtime);
60 b->ctime = HTON__u32(inode->i_ctime);
61 b->mode = HTON__u32(inode->i_mode);
62 b->size = HTON__u64(inode->i_size);
63 b->uid = HTON__u32(inode->i_uid);
64 b->gid = HTON__u32(inode->i_gid);
65 b->flags = HTON__u32(inode->i_flags);
66 //b->major = HTON__u32(inode->i_major);
67 //b->minor = HTON__u32(inode->i_minor);
68 b->nlink = HTON__u32(inode->i_nlink);
69 b->generation = HTON__u32(inode->i_generation);
73 void mds_pack_fid(struct ll_fid *fid)
75 fid->id = HTON__u64(fid->id);
76 fid->generation = HTON__u32(fid->generation);
77 fid->f_type = HTON__u32(fid->f_type);
80 static void mds_pack_body(struct mds_body *b)
85 b->fsuid = HTON__u32(current->fsuid);
86 b->fsgid = HTON__u32(current->fsgid);
88 mds_pack_fid(&b->fid1);
89 mds_pack_fid(&b->fid2);
90 b->size = HTON__u64(b->size);
91 b->ino = HTON__u32(b->ino);
92 b->valid = HTON__u32(b->valid);
93 b->mode = HTON__u32(b->mode);
94 b->uid = HTON__u32(b->uid);
95 b->gid = HTON__u32(b->gid);
96 b->mtime = HTON__u32(b->mtime);
97 b->ctime = HTON__u32(b->ctime);
98 b->atime = HTON__u32(b->atime);
99 b->flags = HTON__u32(b->flags);
100 b->rdev = HTON__u32(b->rdev);
101 b->nlink = HTON__u32(b->nlink);
102 b->generation = HTON__u32(b->generation);
105 void mds_getattr_pack(struct ptlrpc_request *req, int offset,
107 const char *name, int namelen)
109 struct mds_body *rec;
110 rec = lustre_msg_buf(req->rq_reqmsg, offset);
112 ll_inode2fid(&rec->fid1, inode);
115 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
116 LOGL0(name, namelen, tmp);
121 void mds_pack_req_body(struct ptlrpc_request *req)
123 struct mds_body *b = lustre_msg_buf(req->rq_reqmsg, 0);
127 void mds_pack_rep_body(struct ptlrpc_request *req)
129 struct mds_body *b = lustre_msg_buf(req->rq_repmsg, 0);
134 /* packing of MDS records */
135 void mds_create_pack(struct ptlrpc_request *req, int offset,
136 struct inode *inode, __u32 mode, __u64 rdev, __u32 uid,
137 __u32 gid, __u64 time, const char *name, int namelen,
138 const char *tgt, int tgtlen)
140 struct mds_rec_create *rec;
142 rec = lustre_msg_buf(req->rq_reqmsg, offset);
144 /* XXX do something about time, uid, gid */
145 rec->cr_opcode = HTON__u32(REINT_CREATE);
146 rec->cr_fsuid = HTON__u32(current->fsuid);
147 rec->cr_fsgid = HTON__u32(current->fsgid);
148 ll_inode2fid(&rec->cr_fid, inode);
149 rec->cr_mode = HTON__u32(mode);
150 rec->cr_rdev = HTON__u64(rdev);
151 rec->cr_uid = HTON__u32(uid);
152 rec->cr_gid = HTON__u32(gid);
153 rec->cr_time = HTON__u64(time);
155 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
156 LOGL0(name, namelen, tmp);
159 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
160 LOGL0(tgt, tgtlen, tmp);
164 void mds_setattr_pack(struct ptlrpc_request *req, int offset,
165 struct inode *inode, struct iattr *iattr,
166 const char *name, int namelen)
168 struct mds_rec_setattr *rec;
169 rec = lustre_msg_buf(req->rq_reqmsg, offset);
171 rec->sa_opcode = HTON__u32(REINT_SETATTR);
172 rec->sa_fsuid = HTON__u32(current->fsuid);
173 rec->sa_fsgid = HTON__u32(current->fsgid);
174 ll_inode2fid(&rec->sa_fid, inode);
175 rec->sa_valid = HTON__u32(iattr->ia_valid);
176 rec->sa_mode = HTON__u32(iattr->ia_mode);
177 rec->sa_uid = HTON__u32(iattr->ia_uid);
178 rec->sa_gid = HTON__u32(iattr->ia_gid);
179 rec->sa_size = HTON__u64(iattr->ia_size);
180 rec->sa_atime = HTON__u64(iattr->ia_atime);
181 rec->sa_mtime = HTON__u64(iattr->ia_mtime);
182 rec->sa_ctime = HTON__u64(iattr->ia_ctime);
183 rec->sa_attr_flags = HTON__u32(iattr->ia_attr_flags);
187 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
188 LOGL0(name, namelen, tmp);
192 void mds_unlink_pack(struct ptlrpc_request *req, int offset,
193 struct inode *inode, struct inode *child, __u32 mode,
194 const char *name, int namelen)
196 struct mds_rec_unlink *rec;
199 rec = lustre_msg_buf(req->rq_reqmsg, offset);
201 rec->ul_opcode = HTON__u32(REINT_UNLINK);
202 rec->ul_fsuid = HTON__u32(current->fsuid);
203 rec->ul_fsgid = HTON__u32(current->fsgid);
204 rec->ul_mode = HTON__u32(mode);
205 ll_inode2fid(&rec->ul_fid1, inode);
207 ll_inode2fid(&rec->ul_fid2, child);
209 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
210 LOGL0(name, namelen, tmp);
213 void mds_link_pack(struct ptlrpc_request *req, int offset,
214 struct inode *inode, struct inode *dir,
215 const char *name, int namelen)
217 struct mds_rec_link *rec;
220 rec = lustre_msg_buf(req->rq_reqmsg, offset);
222 rec->lk_opcode = HTON__u32(REINT_LINK);
223 rec->lk_fsuid = HTON__u32(current->fsuid);
224 rec->lk_fsgid = HTON__u32(current->fsgid);
225 ll_inode2fid(&rec->lk_fid1, inode);
226 ll_inode2fid(&rec->lk_fid2, dir);
228 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
229 LOGL0(name, namelen, tmp);
232 void mds_rename_pack(struct ptlrpc_request *req, int offset,
233 struct inode *srcdir, struct inode *tgtdir,
234 const char *old, int oldlen, const char *new, int newlen)
236 struct mds_rec_rename *rec;
239 rec = lustre_msg_buf(req->rq_reqmsg, offset);
241 /* XXX do something about time, uid, gid */
242 rec->rn_opcode = HTON__u32(REINT_RENAME);
243 rec->rn_fsuid = HTON__u32(current->fsuid);
244 rec->rn_fsgid = HTON__u32(current->fsgid);
245 ll_inode2fid(&rec->rn_fid1, srcdir);
246 ll_inode2fid(&rec->rn_fid2, tgtdir);
248 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
249 LOGL0(old, oldlen, tmp);
252 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
253 LOGL0(new, newlen, tmp);
258 void mds_unpack_fid(struct ll_fid *fid)
260 fid->id = NTOH__u64(fid->id);
261 fid->generation = NTOH__u32(fid->generation);
262 fid->f_type = NTOH__u32(fid->f_type);
265 void mds_unpack_body(struct mds_body *b)
270 mds_unpack_fid(&b->fid1);
271 mds_unpack_fid(&b->fid2);
272 b->size = NTOH__u64(b->size);
273 b->valid = NTOH__u32(b->valid);
274 b->fsuid = NTOH__u32(b->fsuid);
275 b->fsgid = NTOH__u32(b->fsgid);
276 b->ino = NTOH__u32(b->ino);
277 b->mode = NTOH__u32(b->mode);
278 b->uid = NTOH__u32(b->uid);
279 b->gid = NTOH__u32(b->gid);
280 b->mtime = NTOH__u32(b->mtime);
281 b->ctime = NTOH__u32(b->ctime);
282 b->atime = NTOH__u32(b->atime);
283 b->flags = NTOH__u32(b->flags);
284 b->rdev = NTOH__u32(b->rdev);
285 b->nlink = NTOH__u32(b->nlink);
286 b->generation = NTOH__u32(b->generation);
289 static int mds_setattr_unpack(struct ptlrpc_request *req, int offset,
290 struct mds_update_record *r)
292 struct iattr *attr = &r->ur_iattr;
293 struct mds_rec_setattr *rec = lustre_msg_buf(req->rq_reqmsg, offset);
296 if (req->rq_reqmsg->bufcount < offset + 1 ||
297 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
300 r->ur_fsuid = NTOH__u32(rec->sa_fsuid);
301 r->ur_fsgid = NTOH__u32(rec->sa_fsgid);
302 r->ur_fid1 = &rec->sa_fid;
303 attr->ia_valid = NTOH__u32(rec->sa_valid);
304 attr->ia_mode = NTOH__u32(rec->sa_mode);
305 attr->ia_uid = NTOH__u32(rec->sa_uid);
306 attr->ia_gid = NTOH__u32(rec->sa_gid);
307 attr->ia_size = NTOH__u64(rec->sa_size);
308 attr->ia_atime = NTOH__u64(rec->sa_atime);
309 attr->ia_mtime = NTOH__u64(rec->sa_mtime);
310 attr->ia_ctime = NTOH__u64(rec->sa_ctime);
311 attr->ia_attr_flags = NTOH__u32(rec->sa_attr_flags);
313 if (req->rq_reqmsg->bufcount == offset + 2) {
314 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
315 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
322 static int mds_create_unpack(struct ptlrpc_request *req, int offset,
323 struct mds_update_record *r)
325 struct mds_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, offset);
328 if (req->rq_reqmsg->bufcount < offset + 2 ||
329 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
332 r->ur_fsuid = NTOH__u32(rec->cr_fsuid);
333 r->ur_fsgid = NTOH__u32(rec->cr_fsgid);
334 r->ur_fid1 = &rec->cr_fid;
335 r->ur_mode = NTOH__u32(rec->cr_mode);
336 r->ur_rdev = NTOH__u64(rec->cr_rdev);
337 r->ur_uid = NTOH__u32(rec->cr_uid);
338 r->ur_gid = NTOH__u32(rec->cr_gid);
339 r->ur_time = NTOH__u64(rec->cr_time);
341 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
342 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
344 if (req->rq_reqmsg->bufcount == offset + 3) {
345 r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
346 r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
354 static int mds_link_unpack(struct ptlrpc_request *req, int offset,
355 struct mds_update_record *r)
357 struct mds_rec_link *rec = lustre_msg_buf(req->rq_reqmsg, offset);
360 if (req->rq_reqmsg->bufcount != offset + 2 ||
361 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
364 r->ur_fsuid = NTOH__u32(rec->lk_fsuid);
365 r->ur_fsgid = NTOH__u32(rec->lk_fsgid);
366 r->ur_fid1 = &rec->lk_fid1;
367 r->ur_fid2 = &rec->lk_fid2;
369 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
370 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
374 static int mds_unlink_unpack(struct ptlrpc_request *req, int offset,
375 struct mds_update_record *r)
377 struct mds_rec_unlink *rec = lustre_msg_buf(req->rq_reqmsg, offset);
380 if (req->rq_reqmsg->bufcount != offset + 2 ||
381 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
384 r->ur_fsuid = NTOH__u32(rec->ul_fsuid);
385 r->ur_fsgid = NTOH__u32(rec->ul_fsgid);
386 r->ur_mode = NTOH__u32(rec->ul_mode);
387 r->ur_fid1 = &rec->ul_fid1;
388 r->ur_fid2 = &rec->ul_fid2;
390 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
391 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
395 static int mds_rename_unpack(struct ptlrpc_request *req, int offset,
396 struct mds_update_record *r)
398 struct mds_rec_rename *rec = lustre_msg_buf(req->rq_reqmsg, offset);
401 if (req->rq_reqmsg->bufcount != offset + 3 ||
402 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
405 r->ur_fsuid = NTOH__u32(rec->rn_fsuid);
406 r->ur_fsgid = NTOH__u32(rec->rn_fsgid);
407 r->ur_fid1 = &rec->rn_fid1;
408 r->ur_fid2 = &rec->rn_fid2;
410 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
411 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
413 r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
414 r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
418 typedef int (*update_unpacker)(struct ptlrpc_request *req, int offset,
419 struct mds_update_record *r);
421 static update_unpacker mds_unpackers[REINT_MAX + 1] = {
422 [REINT_SETATTR] mds_setattr_unpack,
423 [REINT_CREATE] mds_create_unpack,
424 [REINT_LINK] mds_link_unpack,
425 [REINT_UNLINK] mds_unlink_unpack,
426 [REINT_RENAME] mds_rename_unpack,
429 int mds_update_unpack(struct ptlrpc_request *req, int offset,
430 struct mds_update_record *rec)
432 __u32 *opcode = lustre_msg_buf(req->rq_reqmsg, offset);
436 if (!opcode || req->rq_reqmsg->buflens[offset] < sizeof(*opcode))
439 realop = rec->ur_opcode = NTOH__u32(*opcode);
440 realop &= REINT_OPCODE_MASK;
442 if (realop < 0 || realop > REINT_MAX)
445 rc = mds_unpackers[realop](req, offset, rec);