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 <stdio.h>
  45 #include <string.h>
  46 #include <sys/types.h>
  47 #include <sys/stat.h>
  48 #ifdef HAVE_ENDIAN_H
  49 # include <endian.h>
  50 #endif
  51 #include <unistd.h>
  52 #include <fcntl.h>
  53 #include <sys/vfs.h>
  54 #include <linux/magic.h>
  55 #include <errno.h>
  56 #include <time.h>
  57 #include <lnet/nidstr.h>
  58 #include <lustre/lustre_idl.h>
  59 #include <lustre/lustreapi.h>
  60 #include <lustre_log_user.h>
  61 #include <lustre_cfg.h>
  62
  63 static inline int ext2_test_bit(int nr, const void *addr)
  64 {
  65 #if __BYTE_ORDER == __BIG_ENDIAN
  66         const unsigned char *tmp = addr;
  67         return (tmp[nr >> 3] >> (nr & 7)) & 1;
  68 #else
  69         const unsigned long *tmp = addr;
  70         return ((1UL << (nr & (BITS_PER_LONG - 1))) &
  71                 ((tmp)[nr / BITS_PER_LONG])) != 0;
  72 #endif
  73 }
  74
  75 int llog_pack_buffer(int fd, struct llog_log_hdr **llog_buf,
  76                      struct llog_rec_hdr ***recs, int *recs_number);
  77
  78 void print_llog_header(struct llog_log_hdr *llog_buf);
  79 static void print_records(struct llog_rec_hdr **recs_buf,
  80                           int rec_number, int is_ext);
  81 void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
  82                         struct llog_rec_hdr **recs_buf);
  83
  84 #define CANCELLED 0x678
  85
  86 #define PTL_CMD_BASE 100
  87 char* portals_command[17]=
  88 {
  89         "REGISTER_PEER_FD",
  90         "CLOSE_CONNECTION",
  91         "REGISTER_MYNID",
  92         "PUSH_CONNECTION",
  93         "GET_CONN",
  94         "DEL_PEER",
  95         "ADD_PEER",
  96         "GET_PEER",
  97         "GET_TXDESC",
  98         "ADD_ROUTE",
  99         "DEL_ROUTE",
 100         "GET_ROUTE",
 101         "NOTIFY_ROUTER",
 102         "ADD_INTERFACE",
 103         "DEL_INTERFACE",
 104         "GET_INTERFACE",
 105         ""
 106 };
 107
 108 int is_fstype_ext(int fd)
 109 {
 110         struct statfs           st;
 111         int                     rc;
 112
 113         rc = fstatfs(fd, &st);
 114         if (rc < 0) {
 115                 llapi_error(LLAPI_MSG_ERROR, rc, "Got statfs error.");
 116                 return -errno;
 117         }
 118
 119         return (st.f_type == EXT4_SUPER_MAGIC);
 120 }
 121
 122
 123 /**
 124  * Attempt to display a path to the object (file) containing changelog entries,
 125  * referred to by this changelog_catalog record.
 126  *
 127  * This path depends on the implementation of the OSD device; zfs-osd and
 128  * ldiskfs-osd are different.
 129  *
 130  * Assumes that if the file system containing the changelog_catalog is
 131  * ext{2,3,4}, the backend is ldiskfs-osd; otherwise it is either zfs-osd or at
 132  * least names objects based on FID and the zfs-osd path (which includes the
 133  * FID) will be sufficient.
 134  *
 135  * The Object ID stored in the record is also displayed untranslated.
 136  */
 137 #define OSD_OI_FID_NR         (1UL << 7)
 138 static void print_log_path(struct llog_logid_rec *lid, int is_ext)
 139 {
 140
 141         char                    object_path[255];
 142         struct lu_fid           fid_from_logid;
 143
 144         logid_to_fid(&lid->lid_id, &fid_from_logid);
 145
 146         if (is_ext)
 147                 snprintf(object_path, sizeof(object_path),
 148                          "O/"LPU64"/d%u/%u", fid_from_logid.f_seq,
 149                          fid_from_logid.f_oid % 32, fid_from_logid.f_oid);
 150         else
 151                 snprintf(object_path, sizeof(object_path),
 152                          "oi."LPU64"/"DFID_NOBRACE,
 153                          fid_from_logid.f_seq & (OSD_OI_FID_NR - 1) ,
 154                          PFID(&fid_from_logid));
 155
 156         printf("ogen=%X id="DOSTID" path=%s\n",
 157                 lid->lid_id.lgl_ogen, POSTID(&lid->lid_id.lgl_oi),
 158                 object_path);
 159 }
 160
 161 int main(int argc, char **argv)
 162 {
 163         int rc = 0;
 164         int is_ext;
 165         int fd, rec_number;
 166         struct llog_log_hdr *llog_buf = NULL;
 167         struct llog_rec_hdr **recs_buf = NULL;
 168
 169         setlinebuf(stdout);
 170
 171         if (argc != 2) {
 172                 printf("Usage: llog_reader filename\n");
 173                 return -1;
 174         }
 175
 176         fd = open(argv[1], O_RDONLY);
 177         if (fd < 0) {
 178                 rc = -errno;
 179                 llapi_error(LLAPI_MSG_ERROR, rc, "Could not open the file %s.",
 180                             argv[1]);
 181                 goto out;
 182         }
 183
 184         is_ext = is_fstype_ext(fd);
 185         if (is_ext < 0) {
 186                 printf("Unable to determine type of filesystem containing %s\n",
 187                        argv[1]);
 188                 goto out;
 189         }
 190
 191         rc = llog_pack_buffer(fd, &llog_buf, &recs_buf, &rec_number);
 192         if (rc < 0) {
 193                 llapi_error(LLAPI_MSG_ERROR, rc, "Could not pack buffer.");
 194                 goto out_fd;
 195         }
 196
 197         print_llog_header(llog_buf);
 198         print_records(recs_buf, rec_number, is_ext);
 199         llog_unpack_buffer(fd, llog_buf, recs_buf);
 200
 201 out_fd:
 202         close(fd);
 203 out:
 204         return rc;
 205 }
 206
 207
 208
 209 int llog_pack_buffer(int fd, struct llog_log_hdr **llog,
 210                      struct llog_rec_hdr ***recs,
 211                      int *recs_number)
 212 {
 213         int rc = 0, recs_num, rd = 0;
 214         long long file_size;
 215         struct stat st;
 216         char *file_buf = NULL, *recs_buf = NULL;
 217         struct llog_rec_hdr **recs_pr = NULL;
 218         char *ptr = NULL;
 219         int i;
 220
 221         rc = fstat(fd, &st);
 222         if (rc < 0) {
 223                 rc = -errno;
 224                 llapi_error(LLAPI_MSG_ERROR, rc, "Got file stat error.");
 225                 goto out;
 226         }
 227
 228         file_size = st.st_size;
 229         if (file_size < sizeof(**llog)) {
 230                 llapi_error(LLAPI_MSG_ERROR, rc,
 231                             "File too small for llog header: "
 232                             "need %zd, size %lld\n",
 233                             sizeof(**llog), file_size);
 234                 rc = -EIO;
 235                 goto out;
 236         }
 237
 238         file_buf = malloc(file_size);
 239         if (file_buf == NULL) {
 240                 rc = -ENOMEM;
 241                 llapi_error(LLAPI_MSG_ERROR, rc, "Memory Alloc for file_buf.");
 242                 goto out;
 243         }
 244         *llog = (struct llog_log_hdr *)file_buf;
 245
 246         do {
 247                 rc = read(fd, file_buf + rd, file_size - rd);
 248                 if (rc > 0)
 249                         rd += rc;
 250         } while (rc > 0 && rd < file_size);
 251
 252         if (rd < file_size) {
 253                 rc = rc < 0 ? -errno : -EIO;
 254                 llapi_error(LLAPI_MSG_ERROR, rc,
 255                             "Error reading llog header: need %zd, got %d",
 256                             sizeof(**llog), rd);
 257                 goto clear_file_buf;
 258         }
 259
 260         /* the llog header not countable here.*/
 261         recs_num = le32_to_cpu((*llog)->llh_count) - 1;
 262
 263         recs_buf = malloc(recs_num * sizeof(**recs_pr));
 264         if (recs_buf == NULL) {
 265                 rc = -ENOMEM;
 266                 llapi_error(LLAPI_MSG_ERROR, rc,
 267                             "Error allocating %zd bytes for recs_buf",
 268                             recs_num * sizeof(**recs_pr));
 269                 goto clear_file_buf;
 270         }
 271         recs_pr = (struct llog_rec_hdr **)recs_buf;
 272
 273         ptr = file_buf + le32_to_cpu((*llog)->llh_hdr.lrh_len);
 274         i = 0;
 275
 276         while (ptr < (file_buf + file_size)) {
 277                 struct llog_rec_hdr *cur_rec;
 278                 int idx;
 279                 unsigned long offset;
 280
 281                 if (ptr + sizeof(**recs_pr) > file_buf + file_size) {
 282                         rc = -EINVAL;
 283                         llapi_error(LLAPI_MSG_ERROR, rc,
 284                                     "The log is corrupt (too big at %d)", i);
 285                         goto clear_recs_buf;
 286                 }
 287
 288                 cur_rec = (struct llog_rec_hdr *)ptr;
 289                 idx = le32_to_cpu(cur_rec->lrh_index);
 290                 recs_pr[i] = cur_rec;
 291                 offset = (unsigned long)ptr - (unsigned long)file_buf;
 292                 if (cur_rec->lrh_len == 0 ||
 293                     cur_rec->lrh_len > (*llog)->llh_hdr.lrh_len) {
 294                         cur_rec->lrh_len = (*llog)->llh_hdr.lrh_len -
 295                                 offset % (*llog)->llh_hdr.lrh_len;
 296                         printf("off %lu skip %u to next chunk.\n", offset,
 297                                cur_rec->lrh_len);
 298                         i--;
 299                 } else if (ext2_test_bit(idx, LLOG_HDR_BITMAP(*llog))) {
 300                         printf("rec #%d type=%x len=%u offset %lu\n", idx,
 301                                cur_rec->lrh_type, cur_rec->lrh_len, offset);
 302                 } else {
 303                         printf("Bit %d of %d not set\n", idx, recs_num);
 304                         cur_rec->lrh_id = CANCELLED;
 305                         /* The header counts only set records */
 306                         i--;
 307                 }
 308
 309                 ptr += le32_to_cpu(cur_rec->lrh_len);
 310                 if ((ptr - file_buf) > file_size) {
 311                         printf("The log is corrupt (too big at %d)\n", i);
 312                         rc = -EINVAL;
 313                         goto clear_recs_buf;
 314                 }
 315                 i++;
 316         }
 317
 318         *recs = recs_pr;
 319         *recs_number = recs_num;
 320
 321 out:
 322         return rc;
 323
 324 clear_recs_buf:
 325         free(recs_buf);
 326
 327 clear_file_buf:
 328         free(file_buf);
 329
 330         *llog = NULL;
 331         goto out;
 332 }
 333
 334 void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
 335                         struct llog_rec_hdr **recs_buf)
 336 {
 337         free(llog_buf);
 338         free(recs_buf);
 339         return;
 340 }
 341
 342 void print_llog_header(struct llog_log_hdr *llog_buf)
 343 {
 344         time_t t;
 345
 346         printf("Header size : %u\n",
 347                le32_to_cpu(llog_buf->llh_hdr.lrh_len));
 348
 349         t = le64_to_cpu(llog_buf->llh_timestamp);
 350         printf("Time : %s", ctime(&t));
 351
 352         printf("Number of records: %u\n",
 353                le32_to_cpu(llog_buf->llh_count)-1);
 354
 355         printf("Target uuid : %s \n",
 356                (char *)(&llog_buf->llh_tgtuuid));
 357
 358         /* Add the other info you want to view here */
 359
 360         printf("-----------------------\n");
 361         return;
 362 }
 363
 364 static void print_1_cfg(struct lustre_cfg *lcfg)
 365 {
 366         int i;
 367
 368         if (lcfg->lcfg_nid)
 369                 printf("nid=%s("LPX64")  ", libcfs_nid2str(lcfg->lcfg_nid),
 370                        lcfg->lcfg_nid);
 371         if (lcfg->lcfg_nal)
 372                 printf("nal=%d ", lcfg->lcfg_nal);
 373         for (i = 0; i <  lcfg->lcfg_bufcount; i++)
 374                 printf("%d:%.*s  ", i, lcfg->lcfg_buflens[i],
 375                        (char*)lustre_cfg_buf(lcfg, i));
 376         return;
 377 }
 378
 379
 380 static void print_setup_cfg(struct lustre_cfg *lcfg)
 381 {
 382         struct lov_desc *desc;
 383
 384         if ((lcfg->lcfg_bufcount == 2) &&
 385             (lcfg->lcfg_buflens[1] == sizeof(*desc))) {
 386                 printf("lov_setup ");
 387                 printf("0:%s  ", lustre_cfg_string(lcfg, 0));
 388                 printf("1:(struct lov_desc)\n");
 389                 desc = (struct lov_desc*)(lustre_cfg_string(lcfg, 1));
 390                 printf("\t\tuuid=%s  ", (char*)desc->ld_uuid.uuid);
 391                 printf("stripe:cnt=%u ", desc->ld_default_stripe_count);
 392                 printf("size="LPU64" ", desc->ld_default_stripe_size);
 393                 printf("offset="LPU64" ", desc->ld_default_stripe_offset);
 394                 printf("pattern=%#x", desc->ld_pattern);
 395         } else {
 396                 printf("setup     ");
 397                 print_1_cfg(lcfg);
 398         }
 399
 400         return;
 401 }
 402
 403 void print_lustre_cfg(struct lustre_cfg *lcfg, int *skip)
 404 {
 405         enum lcfg_command_type cmd = le32_to_cpu(lcfg->lcfg_command);
 406
 407         if (*skip > 0)
 408                 printf("SKIP ");
 409
 410         switch(cmd){
 411         case(LCFG_ATTACH):{
 412                 printf("attach    ");
 413                 print_1_cfg(lcfg);
 414                 break;
 415         }
 416         case(LCFG_SETUP):{
 417                 print_setup_cfg(lcfg);
 418                 break;
 419         }
 420         case(LCFG_DETACH):{
 421                 printf("detach    ");
 422                 print_1_cfg(lcfg);
 423                 break;
 424         }
 425         case(LCFG_CLEANUP):{
 426                 printf("cleanup   ");
 427                 print_1_cfg(lcfg);
 428                 break;
 429         }
 430         case(LCFG_ADD_UUID):{
 431                 printf("add_uuid  ");
 432                 print_1_cfg(lcfg);
 433                 break;
 434         }
 435         case(LCFG_DEL_UUID):{
 436                 printf("del_uuid  ");
 437                 print_1_cfg(lcfg);
 438                 break;
 439         }
 440         case(LCFG_ADD_CONN):{
 441                 printf("add_conn  ");
 442                 print_1_cfg(lcfg);
 443                 break;
 444         }
 445         case(LCFG_DEL_CONN):{
 446                 printf("del_conn  ");
 447                 print_1_cfg(lcfg);
 448                 break;
 449         }
 450         case(LCFG_LOV_ADD_OBD):{
 451                 printf("lov_modify_tgts add ");
 452                 print_1_cfg(lcfg);
 453                 break;
 454         }
 455         case(LCFG_LOV_DEL_OBD):{
 456                 printf("lov_modify_tgts del ");
 457                 print_1_cfg(lcfg);
 458                 break;
 459         }
 460         case(LCFG_ADD_MDC):{
 461                 printf("modify_mdc_tgts add ");
 462                 print_1_cfg(lcfg);
 463                 break;
 464         }
 465         case(LCFG_DEL_MDC):{
 466                 printf("modify_mdc_tgts del ");
 467                 print_1_cfg(lcfg);
 468                 break;
 469         }
 470         case(LCFG_MOUNTOPT):{
 471                 printf("mount_option ");
 472                 print_1_cfg(lcfg);
 473                 break;
 474         }
 475         case(LCFG_DEL_MOUNTOPT):{
 476                 printf("del_mount_option ");
 477                 print_1_cfg(lcfg);
 478                 break;
 479         }
 480         case(LCFG_SET_TIMEOUT):{
 481                 printf("set_timeout=%d ", lcfg->lcfg_num);
 482                 break;
 483         }
 484         case(LCFG_SET_LDLM_TIMEOUT):{
 485                 printf("set_ldlm_timeout=%d ", lcfg->lcfg_num);
 486                 break;
 487         }
 488         case(LCFG_SET_UPCALL):{
 489                 printf("set_lustre_upcall ");
 490                 print_1_cfg(lcfg);
 491                 break;
 492         }
 493         case(LCFG_PARAM):{
 494                 printf("param ");
 495                 print_1_cfg(lcfg);
 496                 break;
 497         }
 498         case(LCFG_SET_PARAM):{
 499                 printf("set_param ");
 500                 print_1_cfg(lcfg);
 501                 break;
 502         }
 503         case(LCFG_SPTLRPC_CONF):{
 504                 printf("sptlrpc_conf ");
 505                 print_1_cfg(lcfg);
 506                 break;
 507         }
 508         case(LCFG_MARKER):{
 509                 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
 510                 char createtime[26], canceltime[26] = "";
 511                 time_t time_tmp;
 512
 513                 if (marker->cm_flags & CM_START &&
 514                     marker->cm_flags & CM_SKIP) {
 515                         printf("SKIP START ");
 516                         (*skip)++;
 517                 } else if (marker->cm_flags & CM_END) {
 518                         printf(     "END   ");
 519                         *skip = 0;
 520                 }
 521
 522                 if (marker->cm_flags & CM_EXCLUDE) {
 523                         if (marker->cm_flags & CM_START)
 524                                 printf("EXCLUDE START ");
 525                         else
 526                                 printf("EXCLUDE END   ");
 527                 }
 528
 529                 /* Handle overflow of 32-bit time_t gracefully.
 530                  * The copy to time_tmp is needed in any case to
 531                  * keep the pointer happy, even on 64-bit systems. */
 532                 time_tmp = marker->cm_createtime;
 533                 if (time_tmp == marker->cm_createtime) {
 534                         ctime_r(&time_tmp, createtime);
 535                         createtime[strlen(createtime) - 1] = 0;
 536                 } else {
 537                         strcpy(createtime, "in the distant future");
 538                 }
 539
 540                 if (marker->cm_canceltime) {
 541                         /* Like cm_createtime, we try to handle overflow of
 542                          * 32-bit time_t gracefully. The copy to time_tmp
 543                          * is also needed on 64-bit systems to keep the
 544                          * pointer happy, see bug 16771 */
 545                         time_tmp = marker->cm_canceltime;
 546                         if (time_tmp == marker->cm_canceltime) {
 547                                 ctime_r(&time_tmp, canceltime);
 548                                 canceltime[strlen(canceltime) - 1] = 0;
 549                         } else {
 550                                 strcpy(canceltime, "in the distant future");
 551                         }
 552                 }
 553
 554                 printf("marker %3d (flags=%#04x, v%d.%d.%d.%d) %-15s '%s' %s-%s",
 555                        marker->cm_step, marker->cm_flags,
 556                        OBD_OCD_VERSION_MAJOR(marker->cm_vers),
 557                        OBD_OCD_VERSION_MINOR(marker->cm_vers),
 558                        OBD_OCD_VERSION_PATCH(marker->cm_vers),
 559                        OBD_OCD_VERSION_FIX(marker->cm_vers),
 560                        marker->cm_tgtname, marker->cm_comment,
 561                        createtime, canceltime);
 562                 break;
 563         }
 564         case(LCFG_POOL_NEW):{
 565                 printf("pool new ");
 566                 print_1_cfg(lcfg);
 567                 break;
 568         }
 569         case(LCFG_POOL_ADD):{
 570                 printf("pool add ");
 571                 print_1_cfg(lcfg);
 572                 break;
 573         }
 574         case(LCFG_POOL_REM):{
 575                 printf("pool remove ");
 576                 print_1_cfg(lcfg);
 577                 break;
 578         }
 579         case(LCFG_POOL_DEL):{
 580                 printf("pool destroy ");
 581                 print_1_cfg(lcfg);
 582                 break;
 583         }
 584         default:
 585                 printf("unsupported cmd_code = %x\n",cmd);
 586         }
 587         printf("\n");
 588         return;
 589 }
 590
 591 static void print_hsm_action(struct llog_agent_req_rec *larr)
 592 {
 593         char    buf[12];
 594         int     sz;
 595
 596         sz = larr->arr_hai.hai_len - sizeof(larr->arr_hai);
 597         printf("lrh=[type=%X len=%d idx=%d] fid="DFID
 598                " compound/cookie="LPX64"/"LPX64
 599                " status=%s action=%s archive#=%d flags="LPX64
 600                " create="LPU64" change="LPU64
 601                " extent="LPX64"-"LPX64" gid="LPX64" datalen=%d"
 602                " data=[%s]\n",
 603                larr->arr_hdr.lrh_type,
 604                larr->arr_hdr.lrh_len, larr->arr_hdr.lrh_index,
 605                PFID(&larr->arr_hai.hai_fid),
 606                larr->arr_compound_id, larr->arr_hai.hai_cookie,
 607                agent_req_status2name(larr->arr_status),
 608                hsm_copytool_action2name(larr->arr_hai.hai_action),
 609                larr->arr_archive_id,
 610                larr->arr_flags,
 611                larr->arr_req_create, larr->arr_req_change,
 612                larr->arr_hai.hai_extent.offset,
 613                larr->arr_hai.hai_extent.length,
 614                larr->arr_hai.hai_gid, sz,
 615                hai_dump_data_field(&larr->arr_hai, buf, sizeof(buf)));
 616 }
 617
 618 void print_changelog_rec(struct llog_changelog_rec *rec)
 619 {
 620         printf("changelog record id:0x%x cr_flags:0x%x cr_type:%s(0x%x)\n",
 621                le32_to_cpu(rec->cr_hdr.lrh_id),
 622                le32_to_cpu(rec->cr.cr_flags),
 623                changelog_type2str(le32_to_cpu(rec->cr.cr_type)),
 624                le32_to_cpu(rec->cr.cr_type));
 625 }
 626
 627 static void print_records(struct llog_rec_hdr **recs,
 628                           int rec_number, int is_ext)
 629 {
 630         __u32 lopt;
 631         int i, skip = 0;
 632
 633         for (i = 0; i < rec_number; i++) {
 634                 printf("#%.2d (%.3d)", le32_to_cpu(recs[i]->lrh_index),
 635                        le32_to_cpu(recs[i]->lrh_len));
 636
 637                 lopt = le32_to_cpu(recs[i]->lrh_type);
 638
 639                 if (recs[i]->lrh_id == CANCELLED)
 640                         printf("NOT SET ");
 641
 642                 switch (lopt) {
 643                 case OBD_CFG_REC:
 644                         print_lustre_cfg(
 645                                 (struct lustre_cfg *)((char *)(recs[i]) +
 646                                 sizeof(struct llog_rec_hdr)), &skip);
 647                         break;
 648                 case LLOG_PAD_MAGIC:
 649                         printf("padding\n");
 650                         break;
 651                 case LLOG_LOGID_MAGIC:
 652                         print_log_path((struct llog_logid_rec *)recs[i],
 653                                        is_ext);
 654                         break;
 655                 case HSM_AGENT_REC:
 656                         print_hsm_action((struct llog_agent_req_rec *)recs[i]);
 657                         break;
 658                 case CHANGELOG_REC:
 659                         print_changelog_rec((struct llog_changelog_rec *)
 660                                             recs[i]);
 661                         break;
 662                 case CHANGELOG_USER_REC:
 663                         printf("changelog_user record id:0x%x\n",
 664                                le32_to_cpu(recs[i]->lrh_id));
 665                         break;
 666                 default:
 667                         printf("unknown type %x\n", lopt);
 668                         break;
 669                 }
 670         }
 671 }
 672
 673 /** @} llog_reader */