1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Lustre Light Update Records
6 * This code is issued under the GNU General Public License.
7 * See the file COPYING in this distribution
9 * Copryright (C) 2002 Cluster File Systems, Inc.
13 #include <linux/config.h>
14 #include <linux/module.h>
15 #include <linux/kernel.h>
17 #include <linux/string.h>
18 #include <linux/stat.h>
19 #include <linux/errno.h>
20 #include <linux/locks.h>
21 #include <linux/unistd.h>
23 #include <asm/system.h>
24 #include <asm/uaccess.h>
27 #include <linux/stat.h>
28 #include <asm/uaccess.h>
29 #include <linux/slab.h>
30 #include <asm/segment.h>
32 #define DEBUG_SUBSYSTEM S_MDS
34 #include <linux/obd_support.h>
35 #include <linux/lustre_lib.h>
36 #include <linux/lustre_mds.h>
37 #include <linux/lustre_lite.h>
39 void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode)
41 fid->id = HTON__u64(inode->i_ino);
42 fid->generation = HTON__u32(inode->i_generation);
43 fid->f_type = HTON__u32(S_IFMT & inode->i_mode);
47 void mds_pack_inode2body(struct mds_body *b, struct inode *inode)
49 b->valid = OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME | OBD_MD_FLMODE | OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLNLINK | OBD_MD_FLGENER | OBD_MD_FLSIZE | OBD_MD_FLOBJID;
50 b->size = HTON__u64(inode->i_size);
51 b->mode = HTON__u32(inode->i_mode);
52 b->uid = HTON__u32(inode->i_uid);
53 b->gid = HTON__u32(inode->i_gid);
54 b->mtime = HTON__u32(inode->i_mtime);
55 b->ctime = HTON__u32(inode->i_ctime);
56 b->atime = HTON__u32(inode->i_atime);
57 b->flags = HTON__u32(inode->i_flags);
58 //b->major = HTON__u32(inode->i_major);
59 //b->minor = HTON__u32(inode->i_minor);
60 b->ino = HTON__u32(inode->i_ino);
61 b->nlink = HTON__u32(inode->i_nlink);
62 b->generation = HTON__u32(inode->i_generation);
66 void mds_pack_fid(struct ll_fid *fid)
68 fid->id = HTON__u64(fid->id);
69 fid->generation = HTON__u32(fid->generation);
70 fid->f_type = HTON__u32(fid->f_type);
73 static void mds_pack_body(struct mds_body *b)
78 mds_pack_fid(&b->fid1);
79 mds_pack_fid(&b->fid2);
80 b->extra = HTON__u64(b->extra);
81 b->size = HTON__u64(b->size);
82 b->valid = HTON__u32(b->valid);
83 b->mode = HTON__u32(b->mode);
84 b->uid = HTON__u32(b->uid);
85 b->gid = HTON__u32(b->gid);
86 b->mtime = HTON__u32(b->mtime);
87 b->ctime = HTON__u32(b->ctime);
88 b->atime = HTON__u32(b->atime);
89 b->flags = HTON__u32(b->flags);
90 b->major = HTON__u32(b->major);
91 b->minor = HTON__u32(b->minor);
92 b->ino = HTON__u32(b->ino);
93 b->nlink = HTON__u32(b->nlink);
94 b->generation = HTON__u32(b->generation);
95 b->last_xid = HTON__u32(b->last_xid);
98 void mds_getattr_pack(struct ptlrpc_request *req, int offset,
100 const char *name, int namelen)
102 struct mds_body *rec;
103 rec = lustre_msg_buf(req->rq_reqmsg, offset);
105 ll_inode2fid(&rec->fid1, inode);
108 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
109 LOGL0(name, namelen, tmp);
114 void mds_pack_req_body(struct ptlrpc_request *req)
116 struct mds_body *b = lustre_msg_buf(req->rq_reqmsg, 0);
120 void mds_pack_rep_body(struct ptlrpc_request *req)
122 struct mds_body *b = lustre_msg_buf(req->rq_repmsg, 0);
127 /* packing of MDS records */
128 void mds_create_pack(struct ptlrpc_request *req, int offset,
129 struct inode *inode, __u32 mode, __u64 rdev, __u32 uid,
130 __u32 gid, __u64 time, const char *name, int namelen,
131 const char *tgt, int tgtlen)
133 struct mds_rec_create *rec;
135 rec = lustre_msg_buf(req->rq_reqmsg, offset);
137 /* XXX do something about time, uid, gid */
138 rec->cr_opcode = HTON__u32(REINT_CREATE);
139 ll_inode2fid(&rec->cr_fid, inode);
140 rec->cr_mode = HTON__u32(mode);
141 rec->cr_rdev = HTON__u64(rdev);
142 rec->cr_uid = HTON__u32(uid);
143 rec->cr_gid = HTON__u32(gid);
144 rec->cr_time = HTON__u64(time);
146 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
147 LOGL0(name, namelen, tmp);
150 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
151 LOGL0(tgt, tgtlen, tmp);
155 void mds_setattr_pack(struct ptlrpc_request *req, int offset,
156 struct inode *inode, struct iattr *iattr,
157 const char *name, int namelen)
159 struct mds_rec_setattr *rec;
160 rec = lustre_msg_buf(req->rq_reqmsg, offset);
162 rec->sa_opcode = HTON__u32(REINT_SETATTR);
163 ll_inode2fid(&rec->sa_fid, inode);
164 rec->sa_valid = HTON__u32(iattr->ia_valid);
165 rec->sa_mode = HTON__u32(iattr->ia_mode);
166 rec->sa_uid = HTON__u32(iattr->ia_uid);
167 rec->sa_gid = HTON__u32(iattr->ia_gid);
168 rec->sa_size = HTON__u64(iattr->ia_size);
169 rec->sa_atime = HTON__u64(iattr->ia_atime);
170 rec->sa_mtime = HTON__u64(iattr->ia_mtime);
171 rec->sa_ctime = HTON__u64(iattr->ia_ctime);
172 rec->sa_attr_flags = HTON__u32(iattr->ia_attr_flags);
176 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
177 LOGL0(name, namelen, tmp);
181 void mds_unlink_pack(struct ptlrpc_request *req, int offset,
182 struct inode *inode, struct inode *child,
183 const char *name, int namelen)
185 struct mds_rec_unlink *rec;
188 rec = lustre_msg_buf(req->rq_reqmsg, offset);
190 rec->ul_opcode = HTON__u32(REINT_UNLINK);
191 ll_inode2fid(&rec->ul_fid1, inode);
193 ll_inode2fid(&rec->ul_fid2, child);
195 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
196 LOGL0(name, namelen, tmp);
199 void mds_link_pack(struct ptlrpc_request *req, int offset,
200 struct inode *inode, struct inode *dir,
201 const char *name, int namelen)
203 struct mds_rec_link *rec;
206 rec = lustre_msg_buf(req->rq_reqmsg, offset);
208 rec->lk_opcode = HTON__u32(REINT_LINK);
209 ll_inode2fid(&rec->lk_fid1, inode);
210 ll_inode2fid(&rec->lk_fid2, dir);
212 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
213 LOGL0(name, namelen, tmp);
216 void mds_rename_pack(struct ptlrpc_request *req, int offset,
217 struct inode *srcdir, struct inode *tgtdir,
218 const char *old, int oldlen, const char *new, int newlen)
220 struct mds_rec_rename *rec;
223 rec = lustre_msg_buf(req->rq_reqmsg, offset);
225 /* XXX do something about time, uid, gid */
226 rec->rn_opcode = HTON__u32(REINT_RENAME);
227 ll_inode2fid(&rec->rn_fid1, srcdir);
228 ll_inode2fid(&rec->rn_fid2, tgtdir);
230 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
231 LOGL0(old, oldlen, tmp);
234 tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
235 LOGL0(new, newlen, tmp);
240 void mds_unpack_fid(struct ll_fid *fid)
242 fid->id = NTOH__u64(fid->id);
243 fid->generation = NTOH__u32(fid->generation);
244 fid->f_type = NTOH__u32(fid->f_type);
247 void mds_unpack_body(struct mds_body *b)
252 mds_unpack_fid(&b->fid1);
253 mds_unpack_fid(&b->fid2);
254 b->extra = NTOH__u64(b->extra);
255 b->size = NTOH__u64(b->size);
256 b->valid = NTOH__u32(b->valid);
257 b->mode = NTOH__u32(b->mode);
258 b->uid = NTOH__u32(b->uid);
259 b->gid = NTOH__u32(b->gid);
260 b->mtime = NTOH__u32(b->mtime);
261 b->ctime = NTOH__u32(b->ctime);
262 b->atime = NTOH__u32(b->atime);
263 b->flags = NTOH__u32(b->flags);
264 b->major = NTOH__u32(b->major);
265 b->minor = NTOH__u32(b->minor);
266 b->ino = NTOH__u32(b->ino);
267 b->nlink = NTOH__u32(b->nlink);
268 b->generation = NTOH__u32(b->generation);
269 b->last_xid = NTOH__u32(b->last_xid);
272 static int mds_setattr_unpack(struct ptlrpc_request *req, int offset,
273 struct mds_update_record *r)
275 struct iattr *attr = &r->ur_iattr;
276 struct mds_rec_setattr *rec = lustre_msg_buf(req->rq_reqmsg, offset);
279 if (req->rq_reqmsg->bufcount < offset + 1 ||
280 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
283 r->ur_fid1 = &rec->sa_fid;
284 attr->ia_valid = NTOH__u32(rec->sa_valid);
285 attr->ia_mode = NTOH__u32(rec->sa_mode);
286 attr->ia_uid = NTOH__u32(rec->sa_uid);
287 attr->ia_gid = NTOH__u32(rec->sa_gid);
288 attr->ia_size = NTOH__u64(rec->sa_size);
289 attr->ia_atime = NTOH__u64(rec->sa_atime);
290 attr->ia_mtime = NTOH__u64(rec->sa_mtime);
291 attr->ia_ctime = NTOH__u64(rec->sa_ctime);
292 attr->ia_attr_flags = NTOH__u32(rec->sa_attr_flags);
294 if (req->rq_reqmsg->bufcount == offset + 2) {
295 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
296 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
303 static int mds_create_unpack(struct ptlrpc_request *req, int offset,
304 struct mds_update_record *r)
306 struct mds_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, offset);
309 if (req->rq_reqmsg->bufcount != offset + 3 ||
310 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
313 r->ur_fid1 = &rec->cr_fid;
314 r->ur_mode = NTOH__u32(rec->cr_mode);
315 r->ur_rdev = NTOH__u64(rec->cr_rdev);
316 r->ur_uid = NTOH__u32(rec->cr_uid);
317 r->ur_gid = NTOH__u32(rec->cr_gid);
318 r->ur_time = NTOH__u64(rec->cr_time);
320 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
321 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
323 r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
324 r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
328 static int mds_link_unpack(struct ptlrpc_request *req, int offset,
329 struct mds_update_record *r)
331 struct mds_rec_link *rec = lustre_msg_buf(req->rq_reqmsg, offset);
334 if (req->rq_reqmsg->bufcount != offset + 2 ||
335 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
338 r->ur_fid1 = &rec->lk_fid1;
339 r->ur_fid2 = &rec->lk_fid2;
341 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
342 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
346 static int mds_unlink_unpack(struct ptlrpc_request *req, int offset,
347 struct mds_update_record *r)
349 struct mds_rec_unlink *rec = lustre_msg_buf(req->rq_reqmsg, offset);
352 if (req->rq_reqmsg->bufcount != offset + 2 ||
353 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
356 r->ur_fid1 = &rec->ul_fid1;
357 r->ur_fid2 = &rec->ul_fid2;
359 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
360 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
364 static int mds_rename_unpack(struct ptlrpc_request *req, int offset,
365 struct mds_update_record *r)
367 struct mds_rec_rename *rec = lustre_msg_buf(req->rq_reqmsg, offset);
370 if (req->rq_reqmsg->bufcount != offset + 3 ||
371 req->rq_reqmsg->buflens[offset] != sizeof(*rec))
374 r->ur_fid1 = &rec->rn_fid1;
375 r->ur_fid2 = &rec->rn_fid2;
377 r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
378 r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
380 r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
381 r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
385 typedef int (*update_unpacker)(struct ptlrpc_request *req, int offset,
386 struct mds_update_record *r);
388 static update_unpacker mds_unpackers[REINT_MAX + 1] = {
389 [REINT_SETATTR] mds_setattr_unpack,
390 [REINT_CREATE] mds_create_unpack,
391 [REINT_LINK] mds_link_unpack,
392 [REINT_UNLINK] mds_unlink_unpack,
393 [REINT_RENAME] mds_rename_unpack,
394 [REINT_RECREATE] mds_create_unpack,
397 int mds_update_unpack(struct ptlrpc_request *req, int offset,
398 struct mds_update_record *rec)
400 struct mds_update_record_hdr *hdr =
401 lustre_msg_buf(req->rq_reqmsg, offset);
405 if (!hdr || req->rq_reqmsg->buflens[offset] < sizeof(*hdr))
408 rec->ur_opcode = NTOH__u32(hdr->ur_opcode);
410 if (rec->ur_opcode < 0 || rec->ur_opcode > REINT_MAX)
413 rc = mds_unpackers[rec->ur_opcode](req, offset, rec);