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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2012, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/obdclass/llog_swab.c
38 * Swabbing of llog datatypes (from disk or over the wire).
40 * Author: jacob berkman <jacob@clusterfs.com>
43 #define DEBUG_SUBSYSTEM S_LOG
46 #include <lustre_log.h>
48 static void print_llogd_body(struct llogd_body *d)
50 CDEBUG(D_OTHER, "llogd body: %p\n", d);
51 CDEBUG(D_OTHER, "\tlgd_logid.lgl_oi: "DOSTID"\n",
52 POSTID(&d->lgd_logid.lgl_oi));
53 CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen);
54 CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx);
55 CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags);
56 CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index);
57 CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index);
58 CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len);
59 CDEBUG(D_OTHER, "\tlgd_cur_offset: "LPX64"\n", d->lgd_cur_offset);
62 void lustre_swab_lu_fid(struct lu_fid *fid)
64 __swab64s (&fid->f_seq);
65 __swab32s (&fid->f_oid);
66 __swab32s (&fid->f_ver);
68 EXPORT_SYMBOL(lustre_swab_lu_fid);
70 void lustre_swab_ost_id(struct ost_id *oid)
72 if (fid_seq_is_mdt0(oid->oi.oi_seq) ||
73 fid_seq_is_default(oid->oi.oi_seq)) {
74 __swab64s(&oid->oi.oi_id);
75 __swab64s(&oid->oi.oi_seq);
77 lustre_swab_lu_fid(&oid->oi_fid);
80 EXPORT_SYMBOL(lustre_swab_ost_id);
82 void lustre_swab_llog_id(struct llog_logid *log_id)
84 __swab64s(&log_id->lgl_oi.oi.oi_id);
85 __swab64s(&log_id->lgl_oi.oi.oi_seq);
86 __swab32s(&log_id->lgl_ogen);
88 EXPORT_SYMBOL(lustre_swab_llog_id);
90 void lustre_swab_llogd_body (struct llogd_body *d)
94 lustre_swab_llog_id(&d->lgd_logid);
95 __swab32s (&d->lgd_ctxt_idx);
96 __swab32s (&d->lgd_llh_flags);
97 __swab32s (&d->lgd_index);
98 __swab32s (&d->lgd_saved_index);
99 __swab32s (&d->lgd_len);
100 __swab64s (&d->lgd_cur_offset);
104 EXPORT_SYMBOL(lustre_swab_llogd_body);
106 void lustre_swab_llogd_conn_body (struct llogd_conn_body *d)
108 __swab64s (&d->lgdc_gen.mnt_cnt);
109 __swab64s (&d->lgdc_gen.conn_cnt);
110 lustre_swab_llog_id(&d->lgdc_logid);
111 __swab32s (&d->lgdc_ctxt_idx);
113 EXPORT_SYMBOL(lustre_swab_llogd_conn_body);
115 void lustre_swab_ll_fid(struct ll_fid *fid)
117 __swab64s (&fid->id);
118 __swab32s (&fid->generation);
119 __swab32s (&fid->f_type);
121 EXPORT_SYMBOL(lustre_swab_ll_fid);
123 void lustre_swab_lu_seq_range(struct lu_seq_range *range)
125 __swab64s (&range->lsr_start);
126 __swab64s (&range->lsr_end);
127 __swab32s (&range->lsr_index);
128 __swab32s (&range->lsr_flags);
130 EXPORT_SYMBOL(lustre_swab_lu_seq_range);
132 void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
134 struct llog_rec_tail *tail = NULL;
136 __swab32s(&rec->lrh_len);
137 __swab32s(&rec->lrh_index);
138 __swab32s(&rec->lrh_type);
139 __swab32s(&rec->lrh_id);
141 switch (rec->lrh_type) {
144 struct llog_size_change_rec *lsc =
145 (struct llog_size_change_rec *)rec;
147 lustre_swab_ll_fid(&lsc->lsc_fid);
148 __swab32s(&lsc->lsc_ioepoch);
149 tail = &lsc->lsc_tail;
154 struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
156 __swab64s(&lur->lur_oid);
157 __swab32s(&lur->lur_oseq);
158 __swab32s(&lur->lur_count);
159 tail = &lur->lur_tail;
162 case MDS_UNLINK64_REC:
164 struct llog_unlink64_rec *lur =
165 (struct llog_unlink64_rec *)rec;
167 lustre_swab_lu_fid(&lur->lur_fid);
168 __swab32s(&lur->lur_count);
169 tail = &lur->lur_tail;
174 struct llog_changelog_rec *cr =
175 (struct llog_changelog_rec *)rec;
177 __swab16s(&cr->cr.cr_namelen);
178 __swab16s(&cr->cr.cr_flags);
179 __swab32s(&cr->cr.cr_type);
180 __swab64s(&cr->cr.cr_index);
181 __swab64s(&cr->cr.cr_prev);
182 __swab64s(&cr->cr.cr_time);
183 lustre_swab_lu_fid(&cr->cr.cr_tfid);
184 lustre_swab_lu_fid(&cr->cr.cr_pfid);
185 if (cr->cr.cr_flags & CLF_RENAME) {
186 struct changelog_ext_rename *rnm =
187 changelog_rec_rename(&cr->cr);
189 lustre_swab_lu_fid(&rnm->cr_sfid);
190 lustre_swab_lu_fid(&rnm->cr_spfid);
192 /* Because the tail follows a variable-length structure we need
193 * to compute its location at runtime */
194 tail = (struct llog_rec_tail *)((char *)&cr->cr +
195 changelog_rec_size(&cr->cr) +
200 case CHANGELOG_USER_REC:
202 struct llog_changelog_user_rec *cur =
203 (struct llog_changelog_user_rec*)rec;
205 __swab32s(&cur->cur_id);
206 __swab64s(&cur->cur_endrec);
207 tail = &cur->cur_tail;
211 case HSM_AGENT_REC: {
212 struct llog_agent_req_rec *arr =
213 (struct llog_agent_req_rec *)rec;
215 __swab32s(&arr->arr_hai.hai_len);
216 __swab32s(&arr->arr_hai.hai_action);
217 lustre_swab_lu_fid(&arr->arr_hai.hai_fid);
218 lustre_swab_lu_fid(&arr->arr_hai.hai_dfid);
219 __swab64s(&arr->arr_hai.hai_cookie);
220 __swab64s(&arr->arr_hai.hai_extent.offset);
221 __swab64s(&arr->arr_hai.hai_extent.length);
222 __swab64s(&arr->arr_hai.hai_gid);
223 /* no swabing for opaque data */
228 case MDS_SETATTR64_REC:
230 struct llog_setattr64_rec *lsr =
231 (struct llog_setattr64_rec *)rec;
233 lustre_swab_ost_id(&lsr->lsr_oi);
234 __swab32s(&lsr->lsr_uid);
235 __swab32s(&lsr->lsr_uid_h);
236 __swab32s(&lsr->lsr_gid);
237 __swab32s(&lsr->lsr_gid_h);
238 __swab64s(&lsr->lsr_valid);
239 tail = &lsr->lsr_tail;
243 /* these are swabbed as they are consumed */
247 struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
249 __swab64s(&llh->llh_timestamp);
250 __swab32s(&llh->llh_count);
251 __swab32s(&llh->llh_bitmap_offset);
252 __swab32s(&llh->llh_flags);
253 __swab32s(&llh->llh_size);
254 __swab32s(&llh->llh_cat_idx);
255 tail = &llh->llh_tail;
258 case LLOG_LOGID_MAGIC:
260 struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
262 lustre_swab_llog_id(&lid->lid_id);
263 tail = &lid->lid_tail;
268 struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
270 __swab64s(&lgr->lgr_gen.mnt_cnt);
271 __swab64s(&lgr->lgr_gen.conn_cnt);
272 tail = &lgr->lgr_tail;
278 CERROR("Unknown llog rec type %#x swabbing rec %p\n",
283 __swab32s(&tail->lrt_len);
284 __swab32s(&tail->lrt_index);
287 EXPORT_SYMBOL(lustre_swab_llog_rec);
289 static void print_llog_hdr(struct llog_log_hdr *h)
291 CDEBUG(D_OTHER, "llog header: %p\n", h);
292 CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index);
293 CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len);
294 CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type);
295 CDEBUG(D_OTHER, "\tllh_timestamp: "LPX64"\n", h->llh_timestamp);
296 CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count);
297 CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset);
298 CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags);
299 CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size);
300 CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx);
301 CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n", h->llh_tail.lrt_index);
302 CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", h->llh_tail.lrt_len);
305 void lustre_swab_llog_hdr (struct llog_log_hdr *h)
310 lustre_swab_llog_rec(&h->llh_hdr);
315 EXPORT_SYMBOL(lustre_swab_llog_hdr);
317 static void print_lustre_cfg(struct lustre_cfg *lcfg)
322 if (!(libcfs_debug & D_OTHER)) /* don't loop on nothing */
324 CDEBUG(D_OTHER, "lustre_cfg: %p\n", lcfg);
325 CDEBUG(D_OTHER, "\tlcfg->lcfg_version: %#x\n", lcfg->lcfg_version);
327 CDEBUG(D_OTHER, "\tlcfg->lcfg_command: %#x\n", lcfg->lcfg_command);
328 CDEBUG(D_OTHER, "\tlcfg->lcfg_num: %#x\n", lcfg->lcfg_num);
329 CDEBUG(D_OTHER, "\tlcfg->lcfg_flags: %#x\n", lcfg->lcfg_flags);
330 CDEBUG(D_OTHER, "\tlcfg->lcfg_nid: %s\n", libcfs_nid2str(lcfg->lcfg_nid));
332 CDEBUG(D_OTHER, "\tlcfg->lcfg_bufcount: %d\n", lcfg->lcfg_bufcount);
333 if (lcfg->lcfg_bufcount < LUSTRE_CFG_MAX_BUFCOUNT)
334 for (i = 0; i < lcfg->lcfg_bufcount; i++)
335 CDEBUG(D_OTHER, "\tlcfg->lcfg_buflens[%d]: %d\n",
336 i, lcfg->lcfg_buflens[i]);
340 void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg)
345 __swab32s(&lcfg->lcfg_version);
347 if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) {
348 CERROR("not swabbing lustre_cfg version %#x (expecting %#x)\n",
349 lcfg->lcfg_version, LUSTRE_CFG_VERSION);
354 __swab32s(&lcfg->lcfg_command);
355 __swab32s(&lcfg->lcfg_num);
356 __swab32s(&lcfg->lcfg_flags);
357 __swab64s(&lcfg->lcfg_nid);
358 __swab32s(&lcfg->lcfg_bufcount);
359 for (i = 0; i < lcfg->lcfg_bufcount && i < LUSTRE_CFG_MAX_BUFCOUNT; i++)
360 __swab32s(&lcfg->lcfg_buflens[i]);
362 print_lustre_cfg(lcfg);
366 EXPORT_SYMBOL(lustre_swab_lustre_cfg);
368 /* used only for compatibility with old on-disk cfg_marker data */
369 struct cfg_marker32 {
376 char cm_tgtname[MTI_NAME_MAXLEN];
377 char cm_comment[MTI_NAME_MAXLEN];
380 #define MTI_NAMELEN32 (MTI_NAME_MAXLEN - \
381 (sizeof(struct cfg_marker) - sizeof(struct cfg_marker32)))
383 void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size)
385 struct cfg_marker32 *cm32 = (struct cfg_marker32*)marker;
389 __swab32s(&marker->cm_step);
390 __swab32s(&marker->cm_flags);
391 __swab32s(&marker->cm_vers);
393 if (size == sizeof(*cm32)) {
394 __u32 createtime, canceltime;
395 /* There was a problem with the original declaration of
396 * cfg_marker on 32-bit systems because it used time_t as
397 * a wire protocol structure, and didn't verify this in
398 * wirecheck. We now have to convert the offsets of the
399 * later fields in order to work on 32- and 64-bit systems.
401 * Fortunately, the cm_comment field has no functional use
402 * so can be sacrificed when converting the timestamp size.
404 * Overwrite fields from the end first, so they are not
405 * clobbered, and use memmove() instead of memcpy() because
406 * the source and target buffers overlap. bug 16771 */
407 createtime = cm32->cm_createtime;
408 canceltime = cm32->cm_canceltime;
409 memmove(marker->cm_comment, cm32->cm_comment, MTI_NAMELEN32);
410 marker->cm_comment[MTI_NAMELEN32 - 1] = '\0';
411 memmove(marker->cm_tgtname, cm32->cm_tgtname,
412 sizeof(marker->cm_tgtname));
414 __swab32s(&createtime);
415 __swab32s(&canceltime);
417 marker->cm_createtime = createtime;
418 marker->cm_canceltime = canceltime;
419 CDEBUG(D_CONFIG, "Find old cfg_marker(Srv32b,Clt64b) "
420 "for target %s, converting\n",
423 __swab64s(&marker->cm_createtime);
424 __swab64s(&marker->cm_canceltime);
430 EXPORT_SYMBOL(lustre_swab_cfg_marker);