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, 2017, 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 <linux/lnet/nidstr.h>
  57 #include <linux/lustre/lustre_cfg.h>
  58 #include <linux/lustre/lustre_fid.h>
  59 #include <linux/lustre/lustre_ostid.h>
  60 #include <linux/lustre/lustre_log_user.h>
  61 #include <lustre/lustreapi.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
  68         return (tmp[nr >> 3] >> (nr & 7)) & 1;
  69 #else
  70         const unsigned long *tmp = addr;
  71
  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         "REGISTER_PEER_FD",
  91         "CLOSE_CONNECTION",
  92         "REGISTER_MYNID",
  93         "PUSH_CONNECTION",
  94         "GET_CONN",
  95         "DEL_PEER",
  96         "ADD_PEER",
  97         "GET_PEER",
  98         "GET_TXDESC",
  99         "ADD_ROUTE",
 100         "DEL_ROUTE",
 101         "GET_ROUTE",
 102         "NOTIFY_ROUTER",
 103         "ADD_INTERFACE",
 104         "DEL_INTERFACE",
 105         "GET_INTERFACE",
 106         ""
 107 };
 108
 109 int is_fstype_ext(int fd)
 110 {
 111         struct statfs st;
 112         int rc;
 113
 114         rc = fstatfs(fd, &st);
 115         if (rc < 0) {
 116                 llapi_error(LLAPI_MSG_ERROR, rc, "Got statfs error.");
 117                 return -errno;
 118         }
 119
 120         return (st.f_type == EXT4_SUPER_MAGIC);
 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         char object_path[255];
 141         struct lu_fid fid_from_logid;
 142
 143         logid_to_fid(&lid->lid_id, &fid_from_logid);
 144
 145         if (is_ext)
 146                 snprintf(object_path, sizeof(object_path),
 147                          "O/%ju/d%u/%u", (uintmax_t)fid_from_logid.f_seq,
 148                          fid_from_logid.f_oid % 32,
 149                          fid_from_logid.f_oid);
 150         else
 151                 snprintf(object_path, sizeof(object_path),
 152                          "oi.%ju/"DFID_NOBRACE,
 153                          (uintmax_t)(fid_from_logid.f_seq &
 154                                      (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                 llapi_error(LLAPI_MSG_ERROR, -rc,
 189                             "Unable to determine filesystem type for %s",
 190                        argv[1]);
 191                 goto out_fd;
 192         }
 193
 194         rc = llog_pack_buffer(fd, &llog_buf, &recs_buf, &rec_number);
 195         if (rc < 0) {
 196                 llapi_error(LLAPI_MSG_ERROR, rc, "Could not pack buffer.");
 197                 goto out_fd;
 198         }
 199
 200         if (llog_buf)
 201                 print_llog_header(llog_buf);
 202         if (recs_buf)
 203                 print_records(recs_buf, rec_number, is_ext);
 204         llog_unpack_buffer(fd, llog_buf, recs_buf);
 205
 206 out_fd:
 207         close(fd);
 208 out:
 209         return rc;
 210 }
 211
 212 int llog_pack_buffer(int fd, struct llog_log_hdr **llog,
 213                      struct llog_rec_hdr ***recs,
 214                      int *recs_number)
 215 {
 216         int rc = 0, recs_num, rd = 0;
 217         long long file_size;
 218         struct stat st;
 219         char *file_buf = NULL, *recs_buf = NULL;
 220         struct llog_rec_hdr **recs_pr = NULL;
 221         char *ptr = NULL;
 222         int count;
 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: want=%zd got=%lld",
 236                             sizeof(**llog), file_size);
 237                 rc = -EIO;
 238                 goto out;
 239         }
 240
 241         file_buf = malloc(file_size);
 242         if (!file_buf) {
 243                 rc = -ENOMEM;
 244                 llapi_error(LLAPI_MSG_ERROR, rc, "Memory Alloc for file_buf.");
 245                 goto out;
 246         }
 247         *llog = (struct llog_log_hdr *)file_buf;
 248
 249         do {
 250                 rc = read(fd, file_buf + rd, file_size - rd);
 251                 if (rc > 0)
 252                         rd += rc;
 253         } while (rc > 0 && rd < file_size);
 254
 255         if (rd < file_size) {
 256                 rc = rc < 0 ? -errno : -EIO;
 257                 llapi_error(LLAPI_MSG_ERROR, rc,
 258                             "Error reading llog header: need %zd, got %d",
 259                             sizeof(**llog), rd);
 260                 goto clear_file_buf;
 261         }
 262
 263         count = __le32_to_cpu((*llog)->llh_count);
 264         if (count < 0) {
 265                 rc = -EINVAL;
 266                 llapi_error(LLAPI_MSG_ERROR, rc,
 267                             "corrupted llog: negative record number %d",
 268                             count);
 269                 goto clear_file_buf;
 270         } else if (count == 0) {
 271                 llapi_printf(LLAPI_MSG_NORMAL,
 272                              "uninitialized llog: zero record number\n");
 273                 *recs_number = 0;
 274                 goto clear_file_buf;
 275         }
 276         /* the llog header not countable here.*/
 277         recs_num = count - 1;
 278
 279         recs_buf = calloc(recs_num, sizeof(**recs_pr));
 280         if (!recs_buf) {
 281                 rc = -ENOMEM;
 282                 llapi_error(LLAPI_MSG_ERROR, rc,
 283                             "Error allocating %zd bytes for recs_buf",
 284                             recs_num * sizeof(**recs_pr));
 285                 goto clear_file_buf;
 286         }
 287         recs_pr = (struct llog_rec_hdr **)recs_buf;
 288
 289         ptr = file_buf + __le32_to_cpu((*llog)->llh_hdr.lrh_len);
 290         i = 0;
 291
 292         while (ptr < (file_buf + file_size)) {
 293                 struct llog_rec_hdr *cur_rec;
 294                 int idx;
 295                 unsigned long offset;
 296
 297                 if (ptr + sizeof(**recs_pr) > file_buf + file_size) {
 298                         rc = -EINVAL;
 299                         llapi_error(LLAPI_MSG_ERROR, rc,
 300                                     "The log is corrupt (too big at %d)", i);
 301                         goto clear_recs_buf;
 302                 }
 303
 304                 cur_rec = (struct llog_rec_hdr *)ptr;
 305                 idx = __le32_to_cpu(cur_rec->lrh_index);
 306                 recs_pr[i] = cur_rec;
 307                 offset = (unsigned long)ptr - (unsigned long)file_buf;
 308                 if (cur_rec->lrh_len == 0 ||
 309                     cur_rec->lrh_len > (*llog)->llh_hdr.lrh_len) {
 310                         cur_rec->lrh_len = (*llog)->llh_hdr.lrh_len -
 311                                 offset % (*llog)->llh_hdr.lrh_len;
 312                         printf("off %lu skip %u to next chunk.\n", offset,
 313                                cur_rec->lrh_len);
 314                         i--;
 315                 } else if (ext2_test_bit(idx, LLOG_HDR_BITMAP(*llog))) {
 316                         printf("rec #%d type=%x len=%u offset %lu\n", idx,
 317                                cur_rec->lrh_type, cur_rec->lrh_len, offset);
 318                 } else {
 319                         printf("Bit %d of %d not set\n", idx, recs_num);
 320                         cur_rec->lrh_id = CANCELLED;
 321                         /* The header counts only set records */
 322                         i--;
 323                 }
 324
 325                 ptr += __le32_to_cpu(cur_rec->lrh_len);
 326                 if ((ptr - file_buf) > file_size) {
 327                         printf("The log is corrupt (too big at %d)\n", i);
 328                         rc = -EINVAL;
 329                         goto clear_recs_buf;
 330                 }
 331                 i++;
 332         }
 333
 334         *recs = recs_pr;
 335         *recs_number = recs_num;
 336
 337 out:
 338         return rc;
 339
 340 clear_recs_buf:
 341         free(recs_buf);
 342
 343 clear_file_buf:
 344         free(file_buf);
 345
 346         *llog = NULL;
 347         goto out;
 348 }
 349
 350 void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
 351                         struct llog_rec_hdr **recs_buf)
 352 {
 353         if (llog_buf)
 354                 free(llog_buf);
 355         if (recs_buf)
 356                 free(recs_buf);
 357 }
 358
 359 void print_llog_header(struct llog_log_hdr *llog_buf)
 360 {
 361         time_t t;
 362
 363         printf("Header size : %u\n",
 364                __le32_to_cpu(llog_buf->llh_hdr.lrh_len));
 365
 366         t = __le64_to_cpu(llog_buf->llh_timestamp);
 367         printf("Time : %s", ctime(&t));
 368
 369         printf("Number of records: %u\n",
 370                __le32_to_cpu(llog_buf->llh_count) - 1);
 371
 372         printf("Target uuid : %s\n",
 373                (char *)(&llog_buf->llh_tgtuuid));
 374
 375         /* Add the other info you want to view here */
 376
 377         printf("-----------------------\n");
 378 }
 379
 380 static void print_1_cfg(struct lustre_cfg *lcfg)
 381 {
 382         int i;
 383
 384         if (lcfg->lcfg_nid)
 385                 printf("nid=%s(%#jx)  ", libcfs_nid2str(lcfg->lcfg_nid),
 386                        (uintmax_t)lcfg->lcfg_nid);
 387         if (lcfg->lcfg_nal)
 388                 printf("nal=%d ", lcfg->lcfg_nal);
 389         for (i = 0; i <  lcfg->lcfg_bufcount; i++)
 390                 printf("%d:%.*s  ", i, lcfg->lcfg_buflens[i],
 391                        (char *)lustre_cfg_buf(lcfg, i));
 392 }
 393
 394 static char *lustre_cfg_string(struct lustre_cfg *lcfg, __u32 index)
 395 {
 396         char *s;
 397
 398         if (lcfg->lcfg_buflens[index] == 0)
 399                 return NULL;
 400
 401         s = lustre_cfg_buf(lcfg, index);
 402         if (!s)
 403                 return NULL;
 404
 405         /*
 406          * make sure it's NULL terminated, even if this kills a char
 407          * of data. Try to use the padding first though.
 408          */
 409         if (s[lcfg->lcfg_buflens[index] - 1] != '\0') {
 410                 size_t last = __ALIGN_KERNEL(lcfg->lcfg_buflens[index], 8) - 1;
 411                 char lost;
 412
 413                 /* Use the smaller value */
 414                 if (last > lcfg->lcfg_buflens[index])
 415                         last = lcfg->lcfg_buflens[index];
 416
 417                 lost = s[last];
 418                 s[last] = '\0';
 419                 if (lost != '\0') {
 420                         fprintf(stderr,
 421                                 "Truncated buf %d to '%s' (lost '%c'...)\n",
 422                                 index, s, lost);
 423                 }
 424         }
 425         return s;
 426 }
 427
 428 static void print_setup_cfg(struct lustre_cfg *lcfg)
 429 {
 430         struct lov_desc *desc;
 431
 432         if ((lcfg->lcfg_bufcount == 2) &&
 433             (lcfg->lcfg_buflens[1] == sizeof(*desc))) {
 434                 printf("lov_setup ");
 435                 printf("0:%s  ", lustre_cfg_string(lcfg, 0));
 436                 printf("1:(struct lov_desc)\n");
 437                 desc = (struct lov_desc *)(lustre_cfg_string(lcfg, 1));
 438                 printf("\t\tuuid=%s  ", (char *)desc->ld_uuid.uuid);
 439                 printf("stripe:cnt=%u ", desc->ld_default_stripe_count);
 440                 printf("size=%ju ", (uintmax_t)desc->ld_default_stripe_size);
 441                 printf("offset=%ju ",
 442                        (uintmax_t)desc->ld_default_stripe_offset);
 443                 printf("pattern=%#x", desc->ld_pattern);
 444         } else {
 445                 printf("setup     ");
 446                 print_1_cfg(lcfg);
 447         }
 448 }
 449
 450 void print_lustre_cfg(struct lustre_cfg *lcfg, int *skip)
 451 {
 452         enum lcfg_command_type cmd = __le32_to_cpu(lcfg->lcfg_command);
 453
 454         if (*skip > 0)
 455                 printf("SKIP ");
 456
 457         switch (cmd) {
 458         case(LCFG_ATTACH):{
 459                 printf("attach    ");
 460                 print_1_cfg(lcfg);
 461                 break;
 462         }
 463         case(LCFG_SETUP):{
 464                 print_setup_cfg(lcfg);
 465                 break;
 466         }
 467         case(LCFG_DETACH):{
 468                 printf("detach    ");
 469                 print_1_cfg(lcfg);
 470                 break;
 471         }
 472         case(LCFG_CLEANUP):{
 473                 printf("cleanup   ");
 474                 print_1_cfg(lcfg);
 475                 break;
 476         }
 477         case(LCFG_ADD_UUID):{
 478                 printf("add_uuid  ");
 479                 print_1_cfg(lcfg);
 480                 break;
 481         }
 482         case(LCFG_DEL_UUID):{
 483                 printf("del_uuid  ");
 484                 print_1_cfg(lcfg);
 485                 break;
 486         }
 487         case(LCFG_ADD_CONN):{
 488                 printf("add_conn  ");
 489                 print_1_cfg(lcfg);
 490                 break;
 491         }
 492         case(LCFG_DEL_CONN):{
 493                 printf("del_conn  ");
 494                 print_1_cfg(lcfg);
 495                 break;
 496         }
 497         case(LCFG_LOV_ADD_OBD):{
 498                 printf("lov_modify_tgts add ");
 499                 print_1_cfg(lcfg);
 500                 break;
 501         }
 502         case(LCFG_LOV_DEL_OBD):{
 503                 printf("lov_modify_tgts del ");
 504                 print_1_cfg(lcfg);
 505                 break;
 506         }
 507         case(LCFG_ADD_MDC):{
 508                 printf("modify_mdc_tgts add ");
 509                 print_1_cfg(lcfg);
 510                 break;
 511         }
 512         case(LCFG_DEL_MDC):{
 513                 printf("modify_mdc_tgts del ");
 514                 print_1_cfg(lcfg);
 515                 break;
 516         }
 517         case(LCFG_MOUNTOPT):{
 518                 printf("mount_option ");
 519                 print_1_cfg(lcfg);
 520                 break;
 521         }
 522         case(LCFG_DEL_MOUNTOPT):{
 523                 printf("del_mount_option ");
 524                 print_1_cfg(lcfg);
 525                 break;
 526         }
 527         case(LCFG_SET_TIMEOUT):{
 528                 printf("set_timeout=%d ", lcfg->lcfg_num);
 529                 break;
 530         }
 531         case(LCFG_SET_LDLM_TIMEOUT):{
 532                 printf("set_ldlm_timeout=%d ", lcfg->lcfg_num);
 533                 break;
 534         }
 535         case(LCFG_SET_UPCALL):{
 536                 printf("set_lustre_upcall ");
 537                 print_1_cfg(lcfg);
 538                 break;
 539         }
 540         case(LCFG_PARAM):{
 541                 printf("param ");
 542                 print_1_cfg(lcfg);
 543                 break;
 544         }
 545         case(LCFG_SET_PARAM):{
 546                 printf("set_param ");
 547                 print_1_cfg(lcfg);
 548                 break;
 549         }
 550         case(LCFG_SPTLRPC_CONF):{
 551                 printf("sptlrpc_conf ");
 552                 print_1_cfg(lcfg);
 553                 break;
 554         }
 555         case(LCFG_MARKER):{
 556                 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
 557                 char createtime[26], canceltime[26] = "";
 558                 time_t time_tmp;
 559
 560                 if (marker->cm_flags & CM_START &&
 561                     marker->cm_flags & CM_SKIP) {
 562                         printf("SKIP START ");
 563                         (*skip)++;
 564                 } else if (marker->cm_flags & CM_END) {
 565                         printf("END   ");
 566                         *skip = 0;
 567                 }
 568
 569                 if (marker->cm_flags & CM_EXCLUDE) {
 570                         if (marker->cm_flags & CM_START)
 571                                 printf("EXCLUDE START ");
 572                         else
 573                                 printf("EXCLUDE END   ");
 574                 }
 575
 576                 /*
 577                  * Handle overflow of 32-bit time_t gracefully.
 578                  * The copy to time_tmp is needed in any case to
 579                  * keep the pointer happy, even on 64-bit systems.
 580                  */
 581                 time_tmp = marker->cm_createtime;
 582                 if (time_tmp == marker->cm_createtime) {
 583                         ctime_r(&time_tmp, createtime);
 584                         createtime[strlen(createtime) - 1] = 0;
 585                 } else {
 586                         strcpy(createtime, "in the distant future");
 587                 }
 588
 589                 if (marker->cm_canceltime) {
 590                         /*
 591                          * Like cm_createtime, we try to handle overflow of
 592                          * 32-bit time_t gracefully. The copy to time_tmp
 593                          * is also needed on 64-bit systems to keep the
 594                          * pointer happy, see bug 16771
 595                          */
 596                         time_tmp = marker->cm_canceltime;
 597                         if (time_tmp == marker->cm_canceltime) {
 598                                 ctime_r(&time_tmp, canceltime);
 599                                 canceltime[strlen(canceltime) - 1] = 0;
 600                         } else {
 601                                 strcpy(canceltime, "in the distant future");
 602                         }
 603                 }
 604
 605                 printf("marker %3d (flags=%#04x, v%d.%d.%d.%d) %-15s '%s' %s-%s",
 606                        marker->cm_step, marker->cm_flags,
 607                        OBD_OCD_VERSION_MAJOR(marker->cm_vers),
 608                        OBD_OCD_VERSION_MINOR(marker->cm_vers),
 609                        OBD_OCD_VERSION_PATCH(marker->cm_vers),
 610                        OBD_OCD_VERSION_FIX(marker->cm_vers),
 611                        marker->cm_tgtname, marker->cm_comment,
 612                        createtime, canceltime);
 613                 break;
 614         }
 615         case(LCFG_POOL_NEW):{
 616                 printf("pool new ");
 617                 print_1_cfg(lcfg);
 618                 break;
 619         }
 620         case(LCFG_POOL_ADD):{
 621                 printf("pool add ");
 622                 print_1_cfg(lcfg);
 623                 break;
 624         }
 625         case(LCFG_POOL_REM):{
 626                 printf("pool remove ");
 627                 print_1_cfg(lcfg);
 628                 break;
 629         }
 630         case(LCFG_POOL_DEL):{
 631                 printf("pool destroy ");
 632                 print_1_cfg(lcfg);
 633                 break;
 634         }
 635         default:
 636                 printf("unsupported cmd_code = %x\n", cmd);
 637         }
 638         printf("\n");
 639 }
 640
 641 static void print_hsm_action(struct llog_agent_req_rec *larr)
 642 {
 643         char buf[12];
 644         int sz;
 645
 646         sz = larr->arr_hai.hai_len - sizeof(larr->arr_hai);
 647         printf("lrh=[type=%X len=%d idx=%d] fid="DFID" compound/cookie=%#llx/%#llx status=%s action=%s archive#=%d flags=%#llx create=%llu change=%llu extent=%#llx-%#llx gid=%#llx datalen=%d data=[%s]\n",
 648                larr->arr_hdr.lrh_type,
 649                larr->arr_hdr.lrh_len, larr->arr_hdr.lrh_index,
 650                PFID(&larr->arr_hai.hai_fid),
 651                (unsigned long long)larr->arr_compound_id,
 652                (unsigned long long)larr->arr_hai.hai_cookie,
 653                agent_req_status2name(larr->arr_status),
 654                hsm_copytool_action2name(larr->arr_hai.hai_action),
 655                larr->arr_archive_id,
 656                (unsigned long long)larr->arr_flags,
 657                (unsigned long long)larr->arr_req_create,
 658                (unsigned long long)larr->arr_req_change,
 659                (unsigned long long)larr->arr_hai.hai_extent.offset,
 660                (unsigned long long)larr->arr_hai.hai_extent.length,
 661                (unsigned long long)larr->arr_hai.hai_gid, sz,
 662                hai_dump_data_field(&larr->arr_hai, buf, sizeof(buf)));
 663 }
 664
 665 void print_changelog_rec(struct llog_changelog_rec *rec)
 666 {
 667         time_t secs;
 668         struct tm ts;
 669
 670         secs = __le64_to_cpu(rec->cr.cr_time) >> 30;
 671         gmtime_r(&secs, &ts);
 672         printf("changelog record id:0x%x index:%llu cr_flags:0x%x cr_type:%s(0x%x) date:'%02d:%02d:%02d.%09d %04d.%02d.%02d' target:"DFID,
 673                __le32_to_cpu(rec->cr_hdr.lrh_id),
 674                (unsigned long long)__le64_to_cpu(rec->cr.cr_index),
 675                __le32_to_cpu(rec->cr.cr_flags),
 676                changelog_type2str(__le32_to_cpu(rec->cr.cr_type)),
 677                __le32_to_cpu(rec->cr.cr_type),
 678                ts.tm_hour, ts.tm_min, ts.tm_sec,
 679                (int)(__le64_to_cpu(rec->cr.cr_time) & ((1 << 30) - 1)),
 680                ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
 681                PFID(&rec->cr.cr_tfid));
 682
 683         if (rec->cr.cr_flags & CLF_JOBID) {
 684                 struct changelog_ext_jobid *jid =
 685                         changelog_rec_jobid(&rec->cr);
 686
 687                 if (jid->cr_jobid[0] != '\0')
 688                         printf(" jobid:%s", jid->cr_jobid);
 689         }
 690
 691         if (rec->cr.cr_flags & CLF_EXTRA_FLAGS) {
 692                 struct changelog_ext_extra_flags *ef =
 693                         changelog_rec_extra_flags(&rec->cr);
 694
 695                 printf(" cr_extra_flags:0x%llx",
 696                        (unsigned long long)__le64_to_cpu(ef->cr_extra_flags));
 697
 698                 if (ef->cr_extra_flags & CLFE_UIDGID) {
 699                         struct changelog_ext_uidgid *uidgid =
 700                                 changelog_rec_uidgid(&rec->cr);
 701
 702                         printf(" user:%u:%u",
 703                                __le32_to_cpu(uidgid->cr_uid),
 704                                __le32_to_cpu(uidgid->cr_gid));
 705                 }
 706                 if (ef->cr_extra_flags & CLFE_NID) {
 707                         struct changelog_ext_nid *nid =
 708                                 changelog_rec_nid(&rec->cr);
 709
 710                         printf(" nid:%s",
 711                                libcfs_nid2str(nid->cr_nid));
 712                 }
 713
 714                 if (ef->cr_extra_flags & CLFE_OPEN) {
 715                         struct changelog_ext_openmode *omd =
 716                                 changelog_rec_openmode(&rec->cr);
 717                         char mode[] = "---";
 718
 719                         /* exec mode must be exclusive */
 720                         if (__le32_to_cpu(omd->cr_openflags) & MDS_FMODE_EXEC) {
 721                                 mode[2] = 'x';
 722                         } else {
 723                                 if (__le32_to_cpu(omd->cr_openflags) &
 724                                     MDS_FMODE_READ)
 725                                         mode[0] = 'r';
 726                                 if (__le32_to_cpu(omd->cr_openflags) &
 727                            (MDS_FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
 728                                         mode[1] = 'w';
 729                         }
 730
 731                         if (strcmp(mode, "---") != 0)
 732                                 printf(" mode:%s", mode);
 733                 }
 734
 735                 if (ef->cr_extra_flags & CLFE_XATTR) {
 736                         struct changelog_ext_xattr *xattr =
 737                                 changelog_rec_xattr(&rec->cr);
 738
 739                         if (xattr->cr_xattr[0] != '\0')
 740                                 printf(" xattr:%s", xattr->cr_xattr);
 741                 }
 742         }
 743
 744         if (rec->cr.cr_namelen)
 745                 printf(" parent:"DFID" name:%.*s", PFID(&rec->cr.cr_pfid),
 746                        __le32_to_cpu(rec->cr.cr_namelen),
 747                        changelog_rec_name(&rec->cr));
 748
 749         if (rec->cr.cr_flags & CLF_RENAME) {
 750                 struct changelog_ext_rename *rnm =
 751                         changelog_rec_rename(&rec->cr);
 752
 753                 if (!fid_is_zero(&rnm->cr_sfid))
 754                         printf(" source_fid:"DFID" source_parent_fid:"DFID
 755                                " %.*s",
 756                                PFID(&rnm->cr_sfid),
 757                                PFID(&rnm->cr_spfid),
 758                                (int)__le32_to_cpu(
 759                                        changelog_rec_snamelen(&rec->cr)),
 760                                changelog_rec_sname(&rec->cr));
 761         }
 762         printf("\n");
 763 }
 764
 765 static void print_records(struct llog_rec_hdr **recs,
 766                           int rec_number, int is_ext)
 767 {
 768         __u32 lopt;
 769         int i, skip = 0;
 770
 771         for (i = 0; i < rec_number; i++) {
 772                 if (!recs[i]) {
 773                         llapi_printf(LLAPI_MSG_NORMAL,
 774                                      "uninitialized llog record at index %d\n",
 775                                      i);
 776                         break;
 777                 }
 778                 printf("#%.2d (%.3d)", __le32_to_cpu(recs[i]->lrh_index),
 779                        __le32_to_cpu(recs[i]->lrh_len));
 780
 781                 lopt = __le32_to_cpu(recs[i]->lrh_type);
 782
 783                 if (recs[i]->lrh_id == CANCELLED)
 784                         printf("NOT SET ");
 785
 786                 switch (lopt) {
 787                 case OBD_CFG_REC:
 788                         print_lustre_cfg(
 789                                 (struct lustre_cfg *)((char *)(recs[i]) +
 790                                 sizeof(struct llog_rec_hdr)), &skip);
 791                         break;
 792                 case LLOG_PAD_MAGIC:
 793                         printf("padding\n");
 794                         break;
 795                 case LLOG_LOGID_MAGIC:
 796                         print_log_path((struct llog_logid_rec *)recs[i],
 797                                        is_ext);
 798                         break;
 799                 case HSM_AGENT_REC:
 800                         print_hsm_action((struct llog_agent_req_rec *)recs[i]);
 801                         break;
 802                 case CHANGELOG_REC:
 803                         print_changelog_rec((struct llog_changelog_rec *)
 804                                             recs[i]);
 805                         break;
 806                 case CHANGELOG_USER_REC:
 807                         printf("changelog_user record id:0x%x\n",
 808                                __le32_to_cpu(recs[i]->lrh_id));
 809                         break;
 810                 default:
 811                         printf("unknown type %x\n", lopt);
 812                         break;
 813                 }
 814         }
 815 }
 816
 817 /** @} llog_reader */