lustre/utils/llog_reader.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   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.
   9  *
  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).
  15  *
  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
  19  *
  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
  22  * have any questions.
  23  *
  24  * GPL HEADER END
  25  */
  26 /*
  27  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  28  * Use is subject to license terms.
  29  *
  30  * Copyright (c) 2011, 2015, Intel Corporation.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  */
  36 /** \defgroup llog_reader Lustre Log Reader
  37  *
  38  * Interpret llogs used for storing configuration and changelog data
  39  *
  40  * @{
  41  */
  42
  43 #include <errno.h>
  44 #include <limits.h>
  45 #include <stdbool.h>
  46 #include <stdio.h>
  47 #include <string.h>
  48 #include <sys/types.h>
  49 #include <sys/stat.h>
  50 #ifdef HAVE_ENDIAN_H
  51 # include <endian.h>
  52 #endif
  53 #include <unistd.h>
  54 #include <fcntl.h>
  55 #include <sys/vfs.h>
  56 #include <linux/magic.h>
  57 #include <errno.h>
  58 #include <time.h>
  59 #include <lnet/nidstr.h>
  60 #include <lustre/lustre_idl.h>
  61 #include <lustre/lustreapi.h>
  62 #include <lustre_log_user.h>
  63 #include <lustre_cfg.h>
  64
  65 static inline int ext2_test_bit(int nr, const void *addr)
  66 {
  67 #if __BYTE_ORDER == __BIG_ENDIAN
  68         const unsigned char *tmp = addr;
  69         return (tmp[nr >> 3] >> (nr & 7)) & 1;
  70 #else
  71         const unsigned long *tmp = addr;
  72         return ((1UL << (nr & (__WORDSIZE - 1))) &
  73                 ((tmp)[nr / __WORDSIZE])) != 0;
  74 #endif
  75 }
  76
  77 int llog_pack_buffer(int fd, struct llog_log_hdr **llog_buf,
  78                      struct llog_rec_hdr ***recs, int *recs_number);
  79
  80 void print_llog_header(struct llog_log_hdr *llog_buf);
  81 static void print_records(struct llog_rec_hdr **recs_buf,
  82                           int rec_number, int is_ext);
  83 void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
  84                         struct llog_rec_hdr **recs_buf);
  85
  86 #define CANCELLED 0x678
  87
  88 #define PTL_CMD_BASE 100
  89 char* portals_command[17]=
  90 {
  91         "REGISTER_PEER_FD",
  92         "CLOSE_CONNECTION",
  93         "REGISTER_MYNID",
  94         "PUSH_CONNECTION",
  95         "GET_CONN",
  96         "DEL_PEER",
  97         "ADD_PEER",
  98         "GET_PEER",
  99         "GET_TXDESC",
 100         "ADD_ROUTE",
 101         "DEL_ROUTE",
 102         "GET_ROUTE",
 103         "NOTIFY_ROUTER",
 104         "ADD_INTERFACE",
 105         "DEL_INTERFACE",
 106         "GET_INTERFACE",
 107         ""
 108 };
 109
 110 int is_fstype_ext(int fd)
 111 {
 112         struct statfs           st;
 113         int                     rc;
 114
 115         rc = fstatfs(fd, &st);
 116         if (rc < 0) {
 117                 llapi_error(LLAPI_MSG_ERROR, rc, "Got statfs error.");
 118                 return -errno;
 119         }
 120
 121         return (st.f_type == EXT4_SUPER_MAGIC);
 122 }
 123
 124
 125 /**
 126  * Attempt to display a path to the object (file) containing changelog entries,
 127  * referred to by this changelog_catalog record.
 128  *
 129  * This path depends on the implementation of the OSD device; zfs-osd and
 130  * ldiskfs-osd are different.
 131  *
 132  * Assumes that if the file system containing the changelog_catalog is
 133  * ext{2,3,4}, the backend is ldiskfs-osd; otherwise it is either zfs-osd or at
 134  * least names objects based on FID and the zfs-osd path (which includes the
 135  * FID) will be sufficient.
 136  *
 137  * The Object ID stored in the record is also displayed untranslated.
 138  */
 139 #define OSD_OI_FID_NR         (1UL << 7)
 140 static void print_log_path(struct llog_logid_rec *lid, int is_ext)
 141 {
 142
 143         char                    object_path[255];
 144         struct lu_fid           fid_from_logid;
 145
 146         logid_to_fid(&lid->lid_id, &fid_from_logid);
 147
 148         if (is_ext)
 149                 snprintf(object_path, sizeof(object_path),
 150                          "O/%ju/d%u/%u", (uintmax_t)fid_from_logid.f_seq,
 151                          fid_from_logid.f_oid % 32,
 152                          fid_from_logid.f_oid);
 153         else
 154                 snprintf(object_path, sizeof(object_path),
 155                          "oi.%ju/"DFID_NOBRACE,
 156                          (uintmax_t)(fid_from_logid.f_seq & (OSD_OI_FID_NR - 1)),
 157                          PFID(&fid_from_logid));
 158
 159         printf("ogen=%X id="DOSTID" path=%s\n",
 160                 lid->lid_id.lgl_ogen, POSTID(&lid->lid_id.lgl_oi),
 161                 object_path);
 162 }
 163
 164 int main(int argc, char **argv)
 165 {
 166         int rc = 0;
 167         int is_ext;
 168         int fd, rec_number;
 169         struct llog_log_hdr *llog_buf = NULL;
 170         struct llog_rec_hdr **recs_buf = NULL;
 171
 172         setlinebuf(stdout);
 173
 174         if (argc != 2) {
 175                 printf("Usage: llog_reader filename\n");
 176                 return -1;
 177         }
 178
 179         fd = open(argv[1], O_RDONLY);
 180         if (fd < 0) {
 181                 rc = -errno;
 182                 llapi_error(LLAPI_MSG_ERROR, rc, "Could not open the file %s.",
 183                             argv[1]);
 184                 goto out;
 185         }
 186
 187         is_ext = is_fstype_ext(fd);
 188         if (is_ext < 0) {
 189                 rc = is_ext;
 190                 printf("Unable to determine type of filesystem containing %s\n",
 191                        argv[1]);
 192                 goto out_fd;
 193         }
 194
 195         rc = llog_pack_buffer(fd, &llog_buf, &recs_buf, &rec_number);
 196         if (rc < 0) {
 197                 llapi_error(LLAPI_MSG_ERROR, rc, "Could not pack buffer.");
 198                 goto out_fd;
 199         }
 200
 201         print_llog_header(llog_buf);
 202         print_records(recs_buf, rec_number, is_ext);
 203         llog_unpack_buffer(fd, llog_buf, recs_buf);
 204
 205 out_fd:
 206         close(fd);
 207 out:
 208         return rc;
 209 }
 210
 211
 212
 213 int llog_pack_buffer(int fd, struct llog_log_hdr **llog,
 214                      struct llog_rec_hdr ***recs,
 215                      int *recs_number)
 216 {
 217         int rc = 0, recs_num, rd = 0;
 218         long long file_size;
 219         struct stat st;
 220         char *file_buf = NULL, *recs_buf = NULL;
 221         struct llog_rec_hdr **recs_pr = NULL;
 222         char *ptr = NULL;
 223         int i;
 224
 225         rc = fstat(fd, &st);
 226         if (rc < 0) {
 227                 rc = -errno;
 228                 llapi_error(LLAPI_MSG_ERROR, rc, "Got file stat error.");
 229                 goto out;
 230         }
 231
 232         file_size = st.st_size;
 233         if (file_size < sizeof(**llog)) {
 234                 llapi_error(LLAPI_MSG_ERROR, rc,
 235                             "File too small for llog header: "
 236                             "need %zd, size %lld\n",
 237                             sizeof(**llog), file_size);
 238                 rc = -EIO;
 239                 goto out;
 240         }
 241
 242         file_buf = malloc(file_size);
 243         if (file_buf == NULL) {
 244                 rc = -ENOMEM;
 245                 llapi_error(LLAPI_MSG_ERROR, rc, "Memory Alloc for file_buf.");
 246                 goto out;
 247         }
 248         *llog = (struct llog_log_hdr *)file_buf;
 249
 250         do {
 251                 rc = read(fd, file_buf + rd, file_size - rd);
 252                 if (rc > 0)
 253                         rd += rc;
 254         } while (rc > 0 && rd < file_size);
 255
 256         if (rd < file_size) {
 257                 rc = rc < 0 ? -errno : -EIO;
 258                 llapi_error(LLAPI_MSG_ERROR, rc,
 259                             "Error reading llog header: need %zd, got %d",
 260                             sizeof(**llog), rd);
 261                 goto clear_file_buf;
 262         }
 263
 264         /* the llog header not countable here.*/
 265         recs_num = le32_to_cpu((*llog)->llh_count) - 1;
 266
 267         recs_buf = malloc(recs_num * sizeof(**recs_pr));
 268         if (recs_buf == NULL) {
 269                 rc = -ENOMEM;
 270                 llapi_error(LLAPI_MSG_ERROR, rc,
 271                             "Error allocating %zd bytes for recs_buf",
 272                             recs_num * sizeof(**recs_pr));
 273                 goto clear_file_buf;
 274         }
 275         recs_pr = (struct llog_rec_hdr **)recs_buf;
 276
 277         ptr = file_buf + le32_to_cpu((*llog)->llh_hdr.lrh_len);
 278         i = 0;
 279
 280         while (ptr < (file_buf + file_size)) {
 281                 struct llog_rec_hdr *cur_rec;
 282                 int idx;
 283                 unsigned long offset;
 284
 285                 if (ptr + sizeof(**recs_pr) > file_buf + file_size) {
 286                         rc = -EINVAL;
 287                         llapi_error(LLAPI_MSG_ERROR, rc,
 288                                     "The log is corrupt (too big at %d)", i);
 289                         goto clear_recs_buf;
 290                 }
 291
 292                 cur_rec = (struct llog_rec_hdr *)ptr;
 293                 idx = le32_to_cpu(cur_rec->lrh_index);
 294                 recs_pr[i] = cur_rec;
 295                 offset = (unsigned long)ptr - (unsigned long)file_buf;
 296                 if (cur_rec->lrh_len == 0 ||
 297                     cur_rec->lrh_len > (*llog)->llh_hdr.lrh_len) {
 298                         cur_rec->lrh_len = (*llog)->llh_hdr.lrh_len -
 299                                 offset % (*llog)->llh_hdr.lrh_len;
 300                         printf("off %lu skip %u to next chunk.\n", offset,
 301                                cur_rec->lrh_len);
 302                         i--;
 303                 } else if (ext2_test_bit(idx, LLOG_HDR_BITMAP(*llog))) {
 304                         printf("rec #%d type=%x len=%u offset %lu\n", idx,
 305                                cur_rec->lrh_type, cur_rec->lrh_len, offset);
 306                 } else {
 307                         printf("Bit %d of %d not set\n", idx, recs_num);
 308                         cur_rec->lrh_id = CANCELLED;
 309                         /* The header counts only set records */
 310                         i--;
 311                 }
 312
 313                 ptr += le32_to_cpu(cur_rec->lrh_len);
 314                 if ((ptr - file_buf) > file_size) {
 315                         printf("The log is corrupt (too big at %d)\n", i);
 316                         rc = -EINVAL;
 317                         goto clear_recs_buf;
 318                 }
 319                 i++;
 320         }
 321
 322         *recs = recs_pr;
 323         *recs_number = recs_num;
 324
 325 out:
 326         return rc;
 327
 328 clear_recs_buf:
 329         free(recs_buf);
 330
 331 clear_file_buf:
 332         free(file_buf);
 333
 334         *llog = NULL;
 335         goto out;
 336 }
 337
 338 void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
 339                         struct llog_rec_hdr **recs_buf)
 340 {
 341         free(llog_buf);
 342         free(recs_buf);
 343         return;
 344 }
 345
 346 void print_llog_header(struct llog_log_hdr *llog_buf)
 347 {
 348         time_t t;
 349
 350         printf("Header size : %u\n",
 351                le32_to_cpu(llog_buf->llh_hdr.lrh_len));
 352
 353         t = le64_to_cpu(llog_buf->llh_timestamp);
 354         printf("Time : %s", ctime(&t));
 355
 356         printf("Number of records: %u\n",
 357                le32_to_cpu(llog_buf->llh_count)-1);
 358
 359         printf("Target uuid : %s \n",
 360                (char *)(&llog_buf->llh_tgtuuid));
 361
 362         /* Add the other info you want to view here */
 363
 364         printf("-----------------------\n");
 365         return;
 366 }
 367
 368 static void print_1_cfg(struct lustre_cfg *lcfg)
 369 {
 370         int i;
 371
 372         if (lcfg->lcfg_nid)
 373                 printf("nid=%s(%#jx)  ", libcfs_nid2str(lcfg->lcfg_nid),
 374                        (uintmax_t)lcfg->lcfg_nid);
 375         if (lcfg->lcfg_nal)
 376                 printf("nal=%d ", lcfg->lcfg_nal);
 377         for (i = 0; i <  lcfg->lcfg_bufcount; i++)
 378                 printf("%d:%.*s  ", i, lcfg->lcfg_buflens[i],
 379                        (char*)lustre_cfg_buf(lcfg, i));
 380         return;
 381 }
 382
 383
 384 static void print_setup_cfg(struct lustre_cfg *lcfg)
 385 {
 386         struct lov_desc *desc;
 387
 388         if ((lcfg->lcfg_bufcount == 2) &&
 389             (lcfg->lcfg_buflens[1] == sizeof(*desc))) {
 390                 printf("lov_setup ");
 391                 printf("0:%s  ", lustre_cfg_string(lcfg, 0));
 392                 printf("1:(struct lov_desc)\n");
 393                 desc = (struct lov_desc*)(lustre_cfg_string(lcfg, 1));
 394                 printf("\t\tuuid=%s  ", (char*)desc->ld_uuid.uuid);
 395                 printf("stripe:cnt=%u ", desc->ld_default_stripe_count);
 396                 printf("size=%ju ", (uintmax_t)desc->ld_default_stripe_size);
 397                 printf("offset=%ju ",
 398                        (uintmax_t)desc->ld_default_stripe_offset);
 399                 printf("pattern=%#x", desc->ld_pattern);
 400         } else {
 401                 printf("setup     ");
 402                 print_1_cfg(lcfg);
 403         }
 404
 405         return;
 406 }
 407
 408 void print_lustre_cfg(struct lustre_cfg *lcfg, int *skip)
 409 {
 410         enum lcfg_command_type cmd = le32_to_cpu(lcfg->lcfg_command);
 411
 412         if (*skip > 0)
 413                 printf("SKIP ");
 414
 415         switch(cmd){
 416         case(LCFG_ATTACH):{
 417                 printf("attach    ");
 418                 print_1_cfg(lcfg);
 419                 break;
 420         }
 421         case(LCFG_SETUP):{
 422                 print_setup_cfg(lcfg);
 423                 break;
 424         }
 425         case(LCFG_DETACH):{
 426                 printf("detach    ");
 427                 print_1_cfg(lcfg);
 428                 break;
 429         }
 430         case(LCFG_CLEANUP):{
 431                 printf("cleanup   ");
 432                 print_1_cfg(lcfg);
 433                 break;
 434         }
 435         case(LCFG_ADD_UUID):{
 436                 printf("add_uuid  ");
 437                 print_1_cfg(lcfg);
 438                 break;
 439         }
 440         case(LCFG_DEL_UUID):{
 441                 printf("del_uuid  ");
 442                 print_1_cfg(lcfg);
 443                 break;
 444         }
 445         case(LCFG_ADD_CONN):{
 446                 printf("add_conn  ");
 447                 print_1_cfg(lcfg);
 448                 break;
 449         }
 450         case(LCFG_DEL_CONN):{
 451                 printf("del_conn  ");
 452                 print_1_cfg(lcfg);
 453                 break;
 454         }
 455         case(LCFG_LOV_ADD_OBD):{
 456                 printf("lov_modify_tgts add ");
 457                 print_1_cfg(lcfg);
 458                 break;
 459         }
 460         case(LCFG_LOV_DEL_OBD):{
 461                 printf("lov_modify_tgts del ");
 462                 print_1_cfg(lcfg);
 463                 break;
 464         }
 465         case(LCFG_ADD_MDC):{
 466                 printf("modify_mdc_tgts add ");
 467                 print_1_cfg(lcfg);
 468                 break;
 469         }
 470         case(LCFG_DEL_MDC):{
 471                 printf("modify_mdc_tgts del ");
 472                 print_1_cfg(lcfg);
 473                 break;
 474         }
 475         case(LCFG_MOUNTOPT):{
 476                 printf("mount_option ");
 477                 print_1_cfg(lcfg);
 478                 break;
 479         }
 480         case(LCFG_DEL_MOUNTOPT):{
 481                 printf("del_mount_option ");
 482                 print_1_cfg(lcfg);
 483                 break;
 484         }
 485         case(LCFG_SET_TIMEOUT):{
 486                 printf("set_timeout=%d ", lcfg->lcfg_num);
 487                 break;
 488         }
 489         case(LCFG_SET_LDLM_TIMEOUT):{
 490                 printf("set_ldlm_timeout=%d ", lcfg->lcfg_num);
 491                 break;
 492         }
 493         case(LCFG_SET_UPCALL):{
 494                 printf("set_lustre_upcall ");
 495                 print_1_cfg(lcfg);
 496                 break;
 497         }
 498         case(LCFG_PARAM):{
 499                 printf("param ");
 500                 print_1_cfg(lcfg);
 501                 break;
 502         }
 503         case(LCFG_SET_PARAM):{
 504                 printf("set_param ");
 505                 print_1_cfg(lcfg);
 506                 break;
 507         }
 508         case(LCFG_SPTLRPC_CONF):{
 509                 printf("sptlrpc_conf ");
 510                 print_1_cfg(lcfg);
 511                 break;
 512         }
 513         case(LCFG_MARKER):{
 514                 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
 515                 char createtime[26], canceltime[26] = "";
 516                 time_t time_tmp;
 517
 518                 if (marker->cm_flags & CM_START &&
 519                     marker->cm_flags & CM_SKIP) {
 520                         printf("SKIP START ");
 521                         (*skip)++;
 522                 } else if (marker->cm_flags & CM_END) {
 523                         printf(     "END   ");
 524                         *skip = 0;
 525                 }
 526
 527                 if (marker->cm_flags & CM_EXCLUDE) {
 528                         if (marker->cm_flags & CM_START)
 529                                 printf("EXCLUDE START ");
 530                         else
 531                                 printf("EXCLUDE END   ");
 532                 }
 533
 534                 /* Handle overflow of 32-bit time_t gracefully.
 535                  * The copy to time_tmp is needed in any case to
 536                  * keep the pointer happy, even on 64-bit systems. */
 537                 time_tmp = marker->cm_createtime;
 538                 if (time_tmp == marker->cm_createtime) {
 539                         ctime_r(&time_tmp, createtime);
 540                         createtime[strlen(createtime) - 1] = 0;
 541                 } else {
 542                         strcpy(createtime, "in the distant future");
 543                 }
 544
 545                 if (marker->cm_canceltime) {
 546                         /* Like cm_createtime, we try to handle overflow of
 547                          * 32-bit time_t gracefully. The copy to time_tmp
 548                          * is also needed on 64-bit systems to keep the
 549                          * pointer happy, see bug 16771 */
 550                         time_tmp = marker->cm_canceltime;
 551                         if (time_tmp == marker->cm_canceltime) {
 552                                 ctime_r(&time_tmp, canceltime);
 553                                 canceltime[strlen(canceltime) - 1] = 0;
 554                         } else {
 555                                 strcpy(canceltime, "in the distant future");
 556                         }
 557                 }
 558
 559                 printf("marker %3d (flags=%#04x, v%d.%d.%d.%d) %-15s '%s' %s-%s",
 560                        marker->cm_step, marker->cm_flags,
 561                        OBD_OCD_VERSION_MAJOR(marker->cm_vers),
 562                        OBD_OCD_VERSION_MINOR(marker->cm_vers),
 563                        OBD_OCD_VERSION_PATCH(marker->cm_vers),
 564                        OBD_OCD_VERSION_FIX(marker->cm_vers),
 565                        marker->cm_tgtname, marker->cm_comment,
 566                        createtime, canceltime);
 567                 break;
 568         }
 569         case(LCFG_POOL_NEW):{
 570                 printf("pool new ");
 571                 print_1_cfg(lcfg);
 572                 break;
 573         }
 574         case(LCFG_POOL_ADD):{
 575                 printf("pool add ");
 576                 print_1_cfg(lcfg);
 577                 break;
 578         }
 579         case(LCFG_POOL_REM):{
 580                 printf("pool remove ");
 581                 print_1_cfg(lcfg);
 582                 break;
 583         }
 584         case(LCFG_POOL_DEL):{
 585                 printf("pool destroy ");
 586                 print_1_cfg(lcfg);
 587                 break;
 588         }
 589         default:
 590                 printf("unsupported cmd_code = %x\n",cmd);
 591         }
 592         printf("\n");
 593         return;
 594 }
 595
 596 static void print_hsm_action(struct llog_agent_req_rec *larr)
 597 {
 598         char    buf[12];
 599         int     sz;
 600
 601         sz = larr->arr_hai.hai_len - sizeof(larr->arr_hai);
 602         printf("lrh=[type=%X len=%d idx=%d] fid="DFID
 603                " compound/cookie=%#jx/%#jx"
 604                " status=%s action=%s archive#=%d flags=%#jx"
 605                " create=%ju change=%ju"
 606                " extent=%#jx-%#jx gid=%#jx datalen=%d"
 607                " data=[%s]\n",
 608                larr->arr_hdr.lrh_type,
 609                larr->arr_hdr.lrh_len, larr->arr_hdr.lrh_index,
 610                PFID(&larr->arr_hai.hai_fid),
 611                (uintmax_t)larr->arr_compound_id,
 612                (uintmax_t)larr->arr_hai.hai_cookie,
 613                agent_req_status2name(larr->arr_status),
 614                hsm_copytool_action2name(larr->arr_hai.hai_action),
 615                larr->arr_archive_id,
 616                (uintmax_t)larr->arr_flags,
 617                (uintmax_t)larr->arr_req_create,
 618                (uintmax_t)larr->arr_req_change,
 619                (uintmax_t)larr->arr_hai.hai_extent.offset,
 620                (uintmax_t)larr->arr_hai.hai_extent.length,
 621                (uintmax_t)larr->arr_hai.hai_gid, sz,
 622                hai_dump_data_field(&larr->arr_hai, buf, sizeof(buf)));
 623 }
 624
 625 void print_changelog_rec(struct llog_changelog_rec *rec)
 626 {
 627         printf("changelog record id:0x%x cr_flags:0x%x cr_type:%s(0x%x)\n",
 628                le32_to_cpu(rec->cr_hdr.lrh_id),
 629                le32_to_cpu(rec->cr.cr_flags),
 630                changelog_type2str(le32_to_cpu(rec->cr.cr_type)),
 631                le32_to_cpu(rec->cr.cr_type));
 632 }
 633
 634 static void print_records(struct llog_rec_hdr **recs,
 635                           int rec_number, int is_ext)
 636 {
 637         __u32 lopt;
 638         int i, skip = 0;
 639
 640         for (i = 0; i < rec_number; i++) {
 641                 printf("#%.2d (%.3d)", le32_to_cpu(recs[i]->lrh_index),
 642                        le32_to_cpu(recs[i]->lrh_len));
 643
 644                 lopt = le32_to_cpu(recs[i]->lrh_type);
 645
 646                 if (recs[i]->lrh_id == CANCELLED)
 647                         printf("NOT SET ");
 648
 649                 switch (lopt) {
 650                 case OBD_CFG_REC:
 651                         print_lustre_cfg(
 652                                 (struct lustre_cfg *)((char *)(recs[i]) +
 653                                 sizeof(struct llog_rec_hdr)), &skip);
 654                         break;
 655                 case LLOG_PAD_MAGIC:
 656                         printf("padding\n");
 657                         break;
 658                 case LLOG_LOGID_MAGIC:
 659                         print_log_path((struct llog_logid_rec *)recs[i],
 660                                        is_ext);
 661                         break;
 662                 case HSM_AGENT_REC:
 663                         print_hsm_action((struct llog_agent_req_rec *)recs[i]);
 664                         break;
 665                 case CHANGELOG_REC:
 666                         print_changelog_rec((struct llog_changelog_rec *)
 667                                             recs[i]);
 668                         break;
 669                 case CHANGELOG_USER_REC:
 670                         printf("changelog_user record id:0x%x\n",
 671                                le32_to_cpu(recs[i]->lrh_id));
 672                         break;
 673                 default:
 674                         printf("unknown type %x\n", lopt);
 675                         break;
 676                 }
 677         }
 678 }
 679
 680 /** @} llog_reader */