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->rdev = HTON__u32(b->rdev);
67 b->nlink = HTON__u32(inode->i_nlink);
68 b->generation = HTON__u32(inode->i_generation);
72 void mds_pack_fid(struct ll_fid *fid)
74 fid->id = HTON__u64(fid->id);
75 fid->generation = HTON__u32(fid->generation);
76 fid->f_type = HTON__u32(fid->f_type);
79 static void mds_pack_body(struct mds_body *b)
84 b->fsuid = HTON__u32(current->fsuid);
85 b->fsgid = HTON__u32(current->fsgid);
87 mds_pack_fid(&b->fid1);
88 mds_pack_fid(&b->fid2);
89 b->size = HTON__u64(b->size);
90 b->ino = HTON__u32(b->ino);
91 b->valid = HTON__u32(b->valid);
92 b->mode = HTON__u32(b->mode);
93 b->uid = HTON__u32(b->uid);
94 b->gid = HTON__u32(b->gid);
95 b->mtime = HTON__u32(b->mtime);
96 b->ctime = HTON__u32(b->ctime);
97 b->atime = HTON__u32(b->atime);
98 b->flags = HTON__u32(b->flags);
99 b->rdev = HTON__u32(b->rdev);
100 b->nlink = HTON__u32(b->nlink);
101 b->generation = HTON__u32(b->generation);
104 void mds_getattr_pack(struct ptlrpc_request *req, int offset,
106 const char *name, int namelen)
108 struct mds_body *rec;
109 rec = lustre_msg_buf(req->rq_reqmsg, offset);
111 ll_inode2fid(&rec->fid1, inode);
114 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
115 LOGL0(name, namelen, tmp);
120 void mds_pack_req_body(struct ptlrpc_request *req)
122 struct mds_body *b = lustre_msg_buf(req->rq_reqmsg, 0);
126 void mds_pack_rep_body(struct ptlrpc_request *req)
128 struct mds_body *b = lustre_msg_buf(req->rq_repmsg, 0);
133 /* packing of MDS records */
134 void mds_create_pack(struct ptlrpc_request *req, int offset,
135 struct inode *dir, __u32 mode, __u64 rdev, __u32 uid,
136 __u32 gid, __u64 time, const char *name, int namelen,
137 const char *tgt, int tgtlen)
139 struct mds_rec_create *rec;
141 rec = lustre_msg_buf(req->rq_reqmsg, offset);
143 /* XXX do something about time, uid, gid */
144 rec->cr_opcode = HTON__u32(REINT_CREATE);
145 rec->cr_fsuid = HTON__u32(current->fsuid);
146 rec->cr_fsgid = HTON__u32(current->fsgid);
147 ll_inode2fid(&rec->cr_fid, dir);
148 rec->cr_mode = HTON__u32(mode);
149 rec->cr_rdev = HTON__u64(rdev);
150 rec->cr_uid = HTON__u32(uid);
151 rec->cr_gid = HTON__u32(gid);
152 rec->cr_time = HTON__u64(time);
154 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
155 LOGL0(name, namelen, tmp);
158 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
159 LOGL0(tgt, tgtlen, tmp);
163 void mds_setattr_pack(struct ptlrpc_request *req, int offset,
164 struct inode *inode, struct iattr *iattr,
165 const char *name, int namelen)
167 struct mds_rec_setattr *rec;
168 rec = lustre_msg_buf(req->rq_reqmsg, offset);
170 rec->sa_opcode = HTON__u32(REINT_SETATTR);
171 rec->sa_fsuid = HTON__u32(current->fsuid);
172 rec->sa_fsgid = HTON__u32(current->fsgid);
173 ll_inode2fid(&rec->sa_fid, inode);
174 rec->sa_valid = HTON__u32(iattr->ia_valid);
175 rec->sa_mode = HTON__u32(iattr->ia_mode);
176 rec->sa_uid = HTON__u32(iattr->ia_uid);
177 rec->sa_gid = HTON__u32(iattr->ia_gid);
178 rec->sa_size = HTON__u64(iattr->ia_size);
179 rec->sa_atime = HTON__u64(iattr->ia_atime);
180 rec->sa_mtime = HTON__u64(iattr->ia_mtime);
181 rec->sa_ctime = HTON__u64(iattr->ia_ctime);
182 rec->sa_attr_flags = HTON__u32(iattr->ia_attr_flags);
186 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
187 LOGL0(name, namelen, tmp);
191 void mds_unlink_pack(struct ptlrpc_request *req, int offset,
192 struct inode *inode, struct inode *child, __u32 mode,
193 const char *name, int namelen)
195 struct mds_rec_unlink *rec;
198 rec = lustre_msg_buf(req->rq_reqmsg, offset);
200 rec->ul_opcode = HTON__u32(REINT_UNLINK);
201 rec->ul_fsuid = HTON__u32(current->fsuid);
202 rec->ul_fsgid = HTON__u32(current->fsgid);
203 rec->ul_mode = HTON__u32(mode);
204 ll_inode2fid(&rec->ul_fid1, inode);
206 ll_inode2fid(&rec->ul_fid2, child);
208 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
209 LOGL0(name, namelen, tmp);
212 void mds_link_pack(struct ptlrpc_request *req, int offset,
213 struct inode *inode, struct inode *dir,
214 const char *name, int namelen)
216 struct mds_rec_link *rec;
219 rec = lustre_msg_buf(req->rq_reqmsg, offset);
221 rec->lk_opcode = HTON__u32(REINT_LINK);
222 rec->lk_fsuid = HTON__u32(current->fsuid);
223 rec->lk_fsgid = HTON__u32(current->fsgid);
224 ll_inode2fid(&rec->lk_fid1, inode);
225 ll_inode2fid(&rec->lk_fid2, dir);
227 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
228 LOGL0(name, namelen, tmp);
231 void mds_rename_pack(struct ptlrpc_request *req, int offset,
232 struct inode *srcdir, struct inode *tgtdir,
233 const char *old, int oldlen, const char *new, int newlen)
235 struct mds_rec_rename *rec;
238 rec = lustre_msg_buf(req->rq_reqmsg, offset);
240 /* XXX do something about time, uid, gid */
241 rec->rn_opcode = HTON__u32(REINT_RENAME);
242 rec->rn_fsuid = HTON__u32(current->fsuid);
243 rec->rn_fsgid = HTON__u32(current->fsgid);
244 ll_inode2fid(&rec->rn_fid1, srcdir);
245 ll_inode2fid(&rec->rn_fid2, tgtdir);
247 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
248 LOGL0(old, oldlen, tmp);
251 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
252 LOGL0(new, newlen, tmp);
257 void mds_unpack_fid(struct ll_fid *fid)
259 fid->id = NTOH__u64(fid->id);
260 fid->generation = NTOH__u32(fid->generation);
261 fid->f_type = NTOH__u32(fid->f_type);
264 void mds_unpack_body(struct mds_body *b)
269 mds_unpack_fid(&b->fid1);
270 mds_unpack_fid(&b->fid2);
271 b->size = NTOH__u64(b->size);
272 b->valid = NTOH__u32(b->valid);
273 b->fsuid = NTOH__u32(b->fsuid);
274 b->fsgid = NTOH__u32(b->fsgid);
275 b->ino = NTOH__u32(b->ino);
276 b->mode = NTOH__u32(b->mode);
277 b->uid = NTOH__u32(b->uid);
278 b->gid = NTOH__u32(b->gid);
279 b->mtime = NTOH__u32(b->mtime);
280 b->ctime = NTOH__u32(b->ctime);
281 b->atime = NTOH__u32(b->atime);
282 b->flags = NTOH__u32(b->flags);
283 b->rdev = NTOH__u32(b->rdev);
284 b->nlink = NTOH__u32(b->nlink);
285 b->generation = NTOH__u32(b->generation);
288 static int mds_setattr_unpack(struct ptlrpc_request *req, int offset,
289 struct mds_update_record *r)
291 struct iattr *attr = &r->ur_iattr;
292 struct mds_rec_setattr *rec = lustre_msg_buf(req->rq_reqmsg, offset);
295 if (req->rq_reqmsg->bufcount < offset + 1 ||
296 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
299 r->ur_fsuid = NTOH__u32(rec->sa_fsuid);
300 r->ur_fsgid = NTOH__u32(rec->sa_fsgid);
301 r->ur_fid1 = &rec->sa_fid;
302 attr->ia_valid = NTOH__u32(rec->sa_valid);
303 attr->ia_mode = NTOH__u32(rec->sa_mode);
304 attr->ia_uid = NTOH__u32(rec->sa_uid);
305 attr->ia_gid = NTOH__u32(rec->sa_gid);
306 attr->ia_size = NTOH__u64(rec->sa_size);
307 attr->ia_atime = NTOH__u64(rec->sa_atime);
308 attr->ia_mtime = NTOH__u64(rec->sa_mtime);
309 attr->ia_ctime = NTOH__u64(rec->sa_ctime);
310 attr->ia_attr_flags = NTOH__u32(rec->sa_attr_flags);
312 if (req->rq_reqmsg->bufcount == offset + 2) {
313 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
314 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
321 static int mds_create_unpack(struct ptlrpc_request *req, int offset,
322 struct mds_update_record *r)
324 struct mds_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, offset);
327 if (req->rq_reqmsg->bufcount < offset + 2 ||
328 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
331 r->ur_fsuid = NTOH__u32(rec->cr_fsuid);
332 r->ur_fsgid = NTOH__u32(rec->cr_fsgid);
333 r->ur_fid1 = &rec->cr_fid;
334 r->ur_mode = NTOH__u32(rec->cr_mode);
335 r->ur_rdev = NTOH__u64(rec->cr_rdev);
336 r->ur_uid = NTOH__u32(rec->cr_uid);
337 r->ur_gid = NTOH__u32(rec->cr_gid);
338 r->ur_time = NTOH__u64(rec->cr_time);
340 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
341 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
343 if (req->rq_reqmsg->bufcount == offset + 3) {
344 r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
345 r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
353 static int mds_link_unpack(struct ptlrpc_request *req, int offset,
354 struct mds_update_record *r)
356 struct mds_rec_link *rec = lustre_msg_buf(req->rq_reqmsg, offset);
359 if (req->rq_reqmsg->bufcount != offset + 2 ||
360 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
363 r->ur_fsuid = NTOH__u32(rec->lk_fsuid);
364 r->ur_fsgid = NTOH__u32(rec->lk_fsgid);
365 r->ur_fid1 = &rec->lk_fid1;
366 r->ur_fid2 = &rec->lk_fid2;
368 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
369 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
373 static int mds_unlink_unpack(struct ptlrpc_request *req, int offset,
374 struct mds_update_record *r)
376 struct mds_rec_unlink *rec = lustre_msg_buf(req->rq_reqmsg, offset);
379 if (req->rq_reqmsg->bufcount != offset + 2 ||
380 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
383 r->ur_fsuid = NTOH__u32(rec->ul_fsuid);
384 r->ur_fsgid = NTOH__u32(rec->ul_fsgid);
385 r->ur_mode = NTOH__u32(rec->ul_mode);
386 r->ur_fid1 = &rec->ul_fid1;
387 r->ur_fid2 = &rec->ul_fid2;
389 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
390 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
394 static int mds_rename_unpack(struct ptlrpc_request *req, int offset,
395 struct mds_update_record *r)
397 struct mds_rec_rename *rec = lustre_msg_buf(req->rq_reqmsg, offset);
400 if (req->rq_reqmsg->bufcount != offset + 3 ||
401 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
404 r->ur_fsuid = NTOH__u32(rec->rn_fsuid);
405 r->ur_fsgid = NTOH__u32(rec->rn_fsgid);
406 r->ur_fid1 = &rec->rn_fid1;
407 r->ur_fid2 = &rec->rn_fid2;
409 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
410 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
412 r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
413 r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
417 typedef int (*update_unpacker)(struct ptlrpc_request *req, int offset,
418 struct mds_update_record *r);
420 static update_unpacker mds_unpackers[REINT_MAX + 1] = {
421 [REINT_SETATTR] mds_setattr_unpack,
422 [REINT_CREATE] mds_create_unpack,
423 [REINT_LINK] mds_link_unpack,
424 [REINT_UNLINK] mds_unlink_unpack,
425 [REINT_RENAME] mds_rename_unpack,
428 int mds_update_unpack(struct ptlrpc_request *req, int offset,
429 struct mds_update_record *rec)
431 __u32 *opcode = lustre_msg_buf(req->rq_reqmsg, offset);
435 if (!opcode || req->rq_reqmsg->buflens[offset] < sizeof(*opcode))
438 realop = rec->ur_opcode = NTOH__u32(*opcode);
439 realop &= REINT_OPCODE_MASK;
441 if (realop < 0 || realop > REINT_MAX)
444 rc = mds_unpackers[realop](req, offset, rec);