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.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2016, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  */
  32 /** \defgroup llog_reader Lustre Log Reader
  33  *
  34  * Interpret llogs used for storing configuration and changelog data
  35  *
  36  * @{
  37  */
  38
  39 #include <errno.h>
  40 #include <limits.h>
  41 #include <stdbool.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #include <sys/types.h>
  46 #include <sys/stat.h>
  47 #ifdef HAVE_ENDIAN_H
  48 # include <endian.h>
  49 #endif
  50 #include <unistd.h>
  51 #include <fcntl.h>
  52 #include <sys/vfs.h>
  53 #include <linux/magic.h>
  54 #include <errno.h>
  55 #include <time.h>
  56 #include <lnet/nidstr.h>
  57 #include <linux/lustre_fid.h>
  58 #include <linux/lustre_ostid.h>
  59 #include <lustre/lustreapi.h>
  60 #include <lustre_log_user.h>
  61 #include <linux/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 & (__WORDSIZE - 1))) &
  71                 ((tmp)[nr / __WORDSIZE])) != 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/%ju/d%u/%u", (uintmax_t)fid_from_logid.f_seq,
 149                          fid_from_logid.f_oid % 32,
 150                          fid_from_logid.f_oid);
 151         else
 152                 snprintf(object_path, sizeof(object_path),
 153                          "oi.%ju/"DFID_NOBRACE,
 154                          (uintmax_t)(fid_from_logid.f_seq & (OSD_OI_FID_NR - 1)),
 155                          PFID(&fid_from_logid));
 156
 157         printf("id="DFID":%x path=%s\n",
 158                PFID(&lid->lid_id.lgl_oi.oi_fid), lid->lid_id.lgl_ogen,
 159                object_path);
 160 }
 161
 162 int main(int argc, char **argv)
 163 {
 164         int rc = 0;
 165         int is_ext;
 166         int fd, rec_number;
 167         struct llog_log_hdr *llog_buf = NULL;
 168         struct llog_rec_hdr **recs_buf = NULL;
 169
 170         setlinebuf(stdout);
 171
 172         if (argc != 2) {
 173                 printf("Usage: llog_reader filename\n");
 174                 return -1;
 175         }
 176
 177         fd = open(argv[1], O_RDONLY);
 178         if (fd < 0) {
 179                 rc = -errno;
 180                 llapi_error(LLAPI_MSG_ERROR, rc, "Could not open the file %s.",
 181                             argv[1]);
 182                 goto out;
 183         }
 184
 185         is_ext = is_fstype_ext(fd);
 186         if (is_ext < 0) {
 187                 rc = is_ext;
 188                 printf("Unable to determine type of filesystem containing %s\n",
 189                        argv[1]);
 190                 goto out_fd;
 191         }
 192
 193         rc = llog_pack_buffer(fd, &llog_buf, &recs_buf, &rec_number);
 194         if (rc < 0) {
 195                 llapi_error(LLAPI_MSG_ERROR, rc, "Could not pack buffer.");
 196                 goto out_fd;
 197         }
 198
 199         print_llog_header(llog_buf);
 200         print_records(recs_buf, rec_number, is_ext);
 201         llog_unpack_buffer(fd, llog_buf, recs_buf);
 202
 203 out_fd:
 204         close(fd);
 205 out:
 206         return rc;
 207 }
 208
 209
 210
 211 int llog_pack_buffer(int fd, struct llog_log_hdr **llog,
 212                      struct llog_rec_hdr ***recs,
 213                      int *recs_number)
 214 {
 215         int rc = 0, recs_num, rd = 0;
 216         long long file_size;
 217         struct stat st;
 218         char *file_buf = NULL, *recs_buf = NULL;
 219         struct llog_rec_hdr **recs_pr = NULL;
 220         char *ptr = NULL;
 221         int i;
 222
 223         rc = fstat(fd, &st);
 224         if (rc < 0) {
 225                 rc = -errno;
 226                 llapi_error(LLAPI_MSG_ERROR, rc, "Got file stat error.");
 227                 goto out;
 228         }
 229
 230         file_size = st.st_size;
 231         if (file_size < sizeof(**llog)) {
 232                 llapi_error(LLAPI_MSG_ERROR, rc,
 233                             "File too small for llog header: "
 234                             "need %zd, size %lld\n",
 235                             sizeof(**llog), file_size);
 236                 rc = -EIO;
 237                 goto out;
 238         }
 239
 240         file_buf = malloc(file_size);
 241         if (file_buf == NULL) {
 242                 rc = -ENOMEM;
 243                 llapi_error(LLAPI_MSG_ERROR, rc, "Memory Alloc for file_buf.");
 244                 goto out;
 245         }
 246         *llog = (struct llog_log_hdr *)file_buf;
 247
 248         do {
 249                 rc = read(fd, file_buf + rd, file_size - rd);
 250                 if (rc > 0)
 251                         rd += rc;
 252         } while (rc > 0 && rd < file_size);
 253
 254         if (rd < file_size) {
 255                 rc = rc < 0 ? -errno : -EIO;
 256                 llapi_error(LLAPI_MSG_ERROR, rc,
 257                             "Error reading llog header: need %zd, got %d",
 258                             sizeof(**llog), rd);
 259                 goto clear_file_buf;
 260         }
 261
 262         /* the llog header not countable here.*/
 263         recs_num = __le32_to_cpu((*llog)->llh_count) - 1;
 264
 265         recs_buf = malloc(recs_num * sizeof(**recs_pr));
 266         if (recs_buf == NULL) {
 267                 rc = -ENOMEM;
 268                 llapi_error(LLAPI_MSG_ERROR, rc,
 269                             "Error allocating %zd bytes for recs_buf",
 270                             recs_num * sizeof(**recs_pr));
 271                 goto clear_file_buf;
 272         }
 273         recs_pr = (struct llog_rec_hdr **)recs_buf;
 274
 275         ptr = file_buf + __le32_to_cpu((*llog)->llh_hdr.lrh_len);
 276         i = 0;
 277
 278         while (ptr < (file_buf + file_size)) {
 279                 struct llog_rec_hdr *cur_rec;
 280                 int idx;
 281                 unsigned long offset;
 282
 283                 if (ptr + sizeof(**recs_pr) > file_buf + file_size) {
 284                         rc = -EINVAL;
 285                         llapi_error(LLAPI_MSG_ERROR, rc,
 286                                     "The log is corrupt (too big at %d)", i);
 287                         goto clear_recs_buf;
 288                 }
 289
 290                 cur_rec = (struct llog_rec_hdr *)ptr;
 291                 idx = __le32_to_cpu(cur_rec->lrh_index);
 292                 recs_pr[i] = cur_rec;
 293                 offset = (unsigned long)ptr - (unsigned long)file_buf;
 294                 if (cur_rec->lrh_len == 0 ||
 295                     cur_rec->lrh_len > (*llog)->llh_hdr.lrh_len) {
 296                         cur_rec->lrh_len = (*llog)->llh_hdr.lrh_len -
 297                                 offset % (*llog)->llh_hdr.lrh_len;
 298                         printf("off %lu skip %u to next chunk.\n", offset,
 299                                cur_rec->lrh_len);
 300                         i--;
 301                 } else if (ext2_test_bit(idx, LLOG_HDR_BITMAP(*llog))) {
 302                         printf("rec #%d type=%x len=%u offset %lu\n", idx,
 303                                cur_rec->lrh_type, cur_rec->lrh_len, offset);
 304                 } else {
 305                         printf("Bit %d of %d not set\n", idx, recs_num);
 306                         cur_rec->lrh_id = CANCELLED;
 307                         /* The header counts only set records */
 308                         i--;
 309                 }
 310
 311                 ptr += __le32_to_cpu(cur_rec->lrh_len);
 312                 if ((ptr - file_buf) > file_size) {
 313                         printf("The log is corrupt (too big at %d)\n", i);
 314                         rc = -EINVAL;
 315                         goto clear_recs_buf;
 316                 }
 317                 i++;
 318         }
 319
 320         *recs = recs_pr;
 321         *recs_number = recs_num;
 322
 323 out:
 324         return rc;
 325
 326 clear_recs_buf:
 327         free(recs_buf);
 328
 329 clear_file_buf:
 330         free(file_buf);
 331
 332         *llog = NULL;
 333         goto out;
 334 }
 335
 336 void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
 337                         struct llog_rec_hdr **recs_buf)
 338 {
 339         free(llog_buf);
 340         free(recs_buf);
 341         return;
 342 }
 343
 344 void print_llog_header(struct llog_log_hdr *llog_buf)
 345 {
 346         time_t t;
 347
 348         printf("Header size : %u\n",
 349                __le32_to_cpu(llog_buf->llh_hdr.lrh_len));
 350
 351         t = __le64_to_cpu(llog_buf->llh_timestamp);
 352         printf("Time : %s", ctime(&t));
 353
 354         printf("Number of records: %u\n",
 355                __le32_to_cpu(llog_buf->llh_count)-1);
 356
 357         printf("Target uuid : %s\n",
 358                (char *)(&llog_buf->llh_tgtuuid));
 359
 360         /* Add the other info you want to view here */
 361
 362         printf("-----------------------\n");
 363         return;
 364 }
 365
 366 static void print_1_cfg(struct lustre_cfg *lcfg)
 367 {
 368         int i;
 369
 370         if (lcfg->lcfg_nid)
 371                 printf("nid=%s(%#jx)  ", libcfs_nid2str(lcfg->lcfg_nid),
 372                        (uintmax_t)lcfg->lcfg_nid);
 373         if (lcfg->lcfg_nal)
 374                 printf("nal=%d ", lcfg->lcfg_nal);
 375         for (i = 0; i <  lcfg->lcfg_bufcount; i++)
 376                 printf("%d:%.*s  ", i, lcfg->lcfg_buflens[i],
 377                        (char*)lustre_cfg_buf(lcfg, i));
 378         return;
 379 }
 380
 381 static char *lustre_cfg_string(struct lustre_cfg *lcfg, __u32 index)
 382 {
 383         char *s;
 384
 385         if (lcfg->lcfg_buflens[index] == 0)
 386                 return NULL;
 387
 388         s = lustre_cfg_buf(lcfg, index);
 389         if (s == NULL)
 390                 return NULL;
 391
 392         /*
 393          * make sure it's NULL terminated, even if this kills a char
 394          * of data. Try to use the padding first though.
 395          */
 396         if (s[lcfg->lcfg_buflens[index] - 1] != '\0') {
 397                 size_t last = __ALIGN_KERNEL(lcfg->lcfg_buflens[index], 8) - 1;
 398                 char lost;
 399
 400                 /* Use the smaller value */
 401                 if (last > lcfg->lcfg_buflens[index])
 402                         last = lcfg->lcfg_buflens[index];
 403
 404                 lost = s[last];
 405                 s[last] = '\0';
 406                 if (lost != '\0') {
 407                         fprintf(stderr, "Truncated buf %d to '%s' (lost '%c'...)\n",
 408                                 index, s, lost);
 409                 }
 410         }
 411         return s;
 412 }
 413
 414 static void print_setup_cfg(struct lustre_cfg *lcfg)
 415 {
 416         struct lov_desc *desc;
 417
 418         if ((lcfg->lcfg_bufcount == 2) &&
 419             (lcfg->lcfg_buflens[1] == sizeof(*desc))) {
 420                 printf("lov_setup ");
 421                 printf("0:%s  ", lustre_cfg_string(lcfg, 0));
 422                 printf("1:(struct lov_desc)\n");
 423                 desc = (struct lov_desc*)(lustre_cfg_string(lcfg, 1));
 424                 printf("\t\tuuid=%s  ", (char*)desc->ld_uuid.uuid);
 425                 printf("stripe:cnt=%u ", desc->ld_default_stripe_count);
 426                 printf("size=%ju ", (uintmax_t)desc->ld_default_stripe_size);
 427                 printf("offset=%ju ",
 428                        (uintmax_t)desc->ld_default_stripe_offset);
 429                 printf("pattern=%#x", desc->ld_pattern);
 430         } else {
 431                 printf("setup     ");
 432                 print_1_cfg(lcfg);
 433         }
 434
 435         return;
 436 }
 437
 438 void print_lustre_cfg(struct lustre_cfg *lcfg, int *skip)
 439 {
 440         enum lcfg_command_type cmd = __le32_to_cpu(lcfg->lcfg_command);
 441
 442         if (*skip > 0)
 443                 printf("SKIP ");
 444
 445         switch(cmd){
 446         case(LCFG_ATTACH):{
 447                 printf("attach    ");
 448                 print_1_cfg(lcfg);
 449                 break;
 450         }
 451         case(LCFG_SETUP):{
 452                 print_setup_cfg(lcfg);
 453                 break;
 454         }
 455         case(LCFG_DETACH):{
 456                 printf("detach    ");
 457                 print_1_cfg(lcfg);
 458                 break;
 459         }
 460         case(LCFG_CLEANUP):{
 461                 printf("cleanup   ");
 462                 print_1_cfg(lcfg);
 463                 break;
 464         }
 465         case(LCFG_ADD_UUID):{
 466                 printf("add_uuid  ");
 467                 print_1_cfg(lcfg);
 468                 break;
 469         }
 470         case(LCFG_DEL_UUID):{
 471                 printf("del_uuid  ");
 472                 print_1_cfg(lcfg);
 473                 break;
 474         }
 475         case(LCFG_ADD_CONN):{
 476                 printf("add_conn  ");
 477                 print_1_cfg(lcfg);
 478                 break;
 479         }
 480         case(LCFG_DEL_CONN):{
 481                 printf("del_conn  ");
 482                 print_1_cfg(lcfg);
 483                 break;
 484         }
 485         case(LCFG_LOV_ADD_OBD):{
 486                 printf("lov_modify_tgts add ");
 487                 print_1_cfg(lcfg);
 488                 break;
 489         }
 490         case(LCFG_LOV_DEL_OBD):{
 491                 printf("lov_modify_tgts del ");
 492                 print_1_cfg(lcfg);
 493                 break;
 494         }
 495         case(LCFG_ADD_MDC):{
 496                 printf("modify_mdc_tgts add ");
 497                 print_1_cfg(lcfg);
 498                 break;
 499         }
 500         case(LCFG_DEL_MDC):{
 501                 printf("modify_mdc_tgts del ");
 502                 print_1_cfg(lcfg);
 503                 break;
 504         }
 505         case(LCFG_MOUNTOPT):{
 506                 printf("mount_option ");
 507                 print_1_cfg(lcfg);
 508                 break;
 509         }
 510         case(LCFG_DEL_MOUNTOPT):{
 511                 printf("del_mount_option ");
 512                 print_1_cfg(lcfg);
 513                 break;
 514         }
 515         case(LCFG_SET_TIMEOUT):{
 516                 printf("set_timeout=%d ", lcfg->lcfg_num);
 517                 break;
 518         }
 519         case(LCFG_SET_LDLM_TIMEOUT):{
 520                 printf("set_ldlm_timeout=%d ", lcfg->lcfg_num);
 521                 break;
 522         }
 523         case(LCFG_SET_UPCALL):{
 524                 printf("set_lustre_upcall ");
 525                 print_1_cfg(lcfg);
 526                 break;
 527         }
 528         case(LCFG_PARAM):{
 529                 printf("param ");
 530                 print_1_cfg(lcfg);
 531                 break;
 532         }
 533         case(LCFG_SET_PARAM):{
 534                 printf("set_param ");
 535                 print_1_cfg(lcfg);
 536                 break;
 537         }
 538         case(LCFG_SPTLRPC_CONF):{
 539                 printf("sptlrpc_conf ");
 540                 print_1_cfg(lcfg);
 541                 break;
 542         }
 543         case(LCFG_MARKER):{
 544                 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
 545                 char createtime[26], canceltime[26] = "";
 546                 time_t time_tmp;
 547
 548                 if (marker->cm_flags & CM_START &&
 549                     marker->cm_flags & CM_SKIP) {
 550                         printf("SKIP START ");
 551                         (*skip)++;
 552                 } else if (marker->cm_flags & CM_END) {
 553                         printf(     "END   ");
 554                         *skip = 0;
 555                 }
 556
 557                 if (marker->cm_flags & CM_EXCLUDE) {
 558                         if (marker->cm_flags & CM_START)
 559                                 printf("EXCLUDE START ");
 560                         else
 561                                 printf("EXCLUDE END   ");
 562                 }
 563
 564                 /* Handle overflow of 32-bit time_t gracefully.
 565                  * The copy to time_tmp is needed in any case to
 566                  * keep the pointer happy, even on 64-bit systems. */
 567                 time_tmp = marker->cm_createtime;
 568                 if (time_tmp == marker->cm_createtime) {
 569                         ctime_r(&time_tmp, createtime);
 570                         createtime[strlen(createtime) - 1] = 0;
 571                 } else {
 572                         strcpy(createtime, "in the distant future");
 573                 }
 574
 575                 if (marker->cm_canceltime) {
 576                         /* Like cm_createtime, we try to handle overflow of
 577                          * 32-bit time_t gracefully. The copy to time_tmp
 578                          * is also needed on 64-bit systems to keep the
 579                          * pointer happy, see bug 16771 */
 580                         time_tmp = marker->cm_canceltime;
 581                         if (time_tmp == marker->cm_canceltime) {
 582                                 ctime_r(&time_tmp, canceltime);
 583                                 canceltime[strlen(canceltime) - 1] = 0;
 584                         } else {
 585                                 strcpy(canceltime, "in the distant future");
 586                         }
 587                 }
 588
 589                 printf("marker %3d (flags=%#04x, v%d.%d.%d.%d) %-15s '%s' %s-%s",
 590                        marker->cm_step, marker->cm_flags,
 591                        OBD_OCD_VERSION_MAJOR(marker->cm_vers),
 592                        OBD_OCD_VERSION_MINOR(marker->cm_vers),
 593                        OBD_OCD_VERSION_PATCH(marker->cm_vers),
 594                        OBD_OCD_VERSION_FIX(marker->cm_vers),
 595                        marker->cm_tgtname, marker->cm_comment,
 596                        createtime, canceltime);
 597                 break;
 598         }
 599         case(LCFG_POOL_NEW):{
 600                 printf("pool new ");
 601                 print_1_cfg(lcfg);
 602                 break;
 603         }
 604         case(LCFG_POOL_ADD):{
 605                 printf("pool add ");
 606                 print_1_cfg(lcfg);
 607                 break;
 608         }
 609         case(LCFG_POOL_REM):{
 610                 printf("pool remove ");
 611                 print_1_cfg(lcfg);
 612                 break;
 613         }
 614         case(LCFG_POOL_DEL):{
 615                 printf("pool destroy ");
 616                 print_1_cfg(lcfg);
 617                 break;
 618         }
 619         default:
 620                 printf("unsupported cmd_code = %x\n",cmd);
 621         }
 622         printf("\n");
 623         return;
 624 }
 625
 626 static void print_hsm_action(struct llog_agent_req_rec *larr)
 627 {
 628         char    buf[12];
 629         int     sz;
 630
 631         sz = larr->arr_hai.hai_len - sizeof(larr->arr_hai);
 632         printf("lrh=[type=%X len=%d idx=%d] fid="DFID
 633                " compound/cookie=%#jx/%#jx"
 634                " status=%s action=%s archive#=%d flags=%#jx"
 635                " create=%ju change=%ju"
 636                " extent=%#jx-%#jx gid=%#jx datalen=%d"
 637                " data=[%s]\n",
 638                larr->arr_hdr.lrh_type,
 639                larr->arr_hdr.lrh_len, larr->arr_hdr.lrh_index,
 640                PFID(&larr->arr_hai.hai_fid),
 641                (uintmax_t)larr->arr_compound_id,
 642                (uintmax_t)larr->arr_hai.hai_cookie,
 643                agent_req_status2name(larr->arr_status),
 644                hsm_copytool_action2name(larr->arr_hai.hai_action),
 645                larr->arr_archive_id,
 646                (uintmax_t)larr->arr_flags,
 647                (uintmax_t)larr->arr_req_create,
 648                (uintmax_t)larr->arr_req_change,
 649                (uintmax_t)larr->arr_hai.hai_extent.offset,
 650                (uintmax_t)larr->arr_hai.hai_extent.length,
 651                (uintmax_t)larr->arr_hai.hai_gid, sz,
 652                hai_dump_data_field(&larr->arr_hai, buf, sizeof(buf)));
 653 }
 654
 655 void print_changelog_rec(struct llog_changelog_rec *rec)
 656 {
 657         printf("changelog record id:0x%x cr_flags:0x%x cr_type:%s(0x%x)\n",
 658                __le32_to_cpu(rec->cr_hdr.lrh_id),
 659                __le32_to_cpu(rec->cr.cr_flags),
 660                changelog_type2str(__le32_to_cpu(rec->cr.cr_type)),
 661                __le32_to_cpu(rec->cr.cr_type));
 662 }
 663
 664 static void print_records(struct llog_rec_hdr **recs,
 665                           int rec_number, int is_ext)
 666 {
 667         __u32 lopt;
 668         int i, skip = 0;
 669
 670         for (i = 0; i < rec_number; i++) {
 671                 printf("#%.2d (%.3d)", __le32_to_cpu(recs[i]->lrh_index),
 672                        __le32_to_cpu(recs[i]->lrh_len));
 673
 674                 lopt = __le32_to_cpu(recs[i]->lrh_type);
 675
 676                 if (recs[i]->lrh_id == CANCELLED)
 677                         printf("NOT SET ");
 678
 679                 switch (lopt) {
 680                 case OBD_CFG_REC:
 681                         print_lustre_cfg(
 682                                 (struct lustre_cfg *)((char *)(recs[i]) +
 683                                 sizeof(struct llog_rec_hdr)), &skip);
 684                         break;
 685                 case LLOG_PAD_MAGIC:
 686                         printf("padding\n");
 687                         break;
 688                 case LLOG_LOGID_MAGIC:
 689                         print_log_path((struct llog_logid_rec *)recs[i],
 690                                        is_ext);
 691                         break;
 692                 case HSM_AGENT_REC:
 693                         print_hsm_action((struct llog_agent_req_rec *)recs[i]);
 694                         break;
 695                 case CHANGELOG_REC:
 696                         print_changelog_rec((struct llog_changelog_rec *)
 697                                             recs[i]);
 698                         break;
 699                 case CHANGELOG_USER_REC:
 700                         printf("changelog_user record id:0x%x\n",
 701                                __le32_to_cpu(recs[i]->lrh_id));
 702                         break;
 703                 default:
 704                         printf("unknown type %x\n", lopt);
 705                         break;
 706                 }
 707         }
 708 }
 709
 710 /** @} llog_reader */