zdb_il.c

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    1 /*
    2  * CDDL HEADER START
    3  *
    4  * The contents of this file are subject to the terms of the
    5  * Common Development and Distribution License (the "License").
    6  * You may not use this file except in compliance with the License.
    7  *
    8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
    9  * or https://opensource.org/licenses/CDDL-1.0.
   10  * See the License for the specific language governing permissions
   11  * and limitations under the License.
   12  *
   13  * When distributing Covered Code, include this CDDL HEADER in each
   14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
   15  * If applicable, add the following below this CDDL HEADER, with the
   16  * fields enclosed by brackets "[]" replaced with your own identifying
   17  * information: Portions Copyright [yyyy] [name of copyright owner]
   18  *
   19  * CDDL HEADER END
   20  */
   21 /*
   22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   23  * Copyright (c) 2012 Cyril Plisko. All rights reserved.
   24  * Use is subject to license terms.
   25  */
   26 
   27 /*
   28  * Copyright (c) 2013, 2017 by Delphix. All rights reserved.
   29  */
   30 
   31 /*
   32  * Print intent log header and statistics.
   33  */
   34 
   35 #include <stdio.h>
   36 #include <stdlib.h>
   37 #include <ctype.h>
   38 #include <sys/zfs_context.h>
   39 #include <sys/spa.h>
   40 #include <sys/dmu.h>
   41 #include <sys/stat.h>
   42 #include <sys/resource.h>
   43 #include <sys/zil.h>
   44 #include <sys/zil_impl.h>
   45 #include <sys/spa_impl.h>
   46 #include <sys/abd.h>
   47 
   48 #include "zdb.h"
   49 
   50 extern uint8_t dump_opt[256];
   51 
   52 static char tab_prefix[4] = "\t\t\t";
   53 
   54 static void
   55 print_log_bp(const blkptr_t *bp, const char *prefix)
   56 {
   57         char blkbuf[BP_SPRINTF_LEN];
   58 
   59         snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
   60         (void) printf("%s%s\n", prefix, blkbuf);
   61 }
   62 
   63 static void
   64 zil_prt_rec_create(zilog_t *zilog, int txtype, const void *arg)
   65 {
   66         (void) zilog;
   67         const lr_create_t *lr = arg;
   68         time_t crtime = lr->lr_crtime[0];
   69         char *name, *link;
   70         lr_attr_t *lrattr;
   71 
   72         name = (char *)(lr + 1);
   73 
   74         if (lr->lr_common.lrc_txtype == TX_CREATE_ATTR ||
   75             lr->lr_common.lrc_txtype == TX_MKDIR_ATTR) {
   76                 lrattr = (lr_attr_t *)(lr + 1);
   77                 name += ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
   78         }
   79 
   80         if (txtype == TX_SYMLINK) {
   81                 link = name + strlen(name) + 1;
   82                 (void) printf("%s%s -> %s\n", tab_prefix, name, link);
   83         } else if (txtype != TX_MKXATTR) {
   84                 (void) printf("%s%s\n", tab_prefix, name);
   85         }
   86 
   87         (void) printf("%s%s", tab_prefix, ctime(&crtime));
   88         (void) printf("%sdoid %llu, foid %llu, slots %llu, mode %llo\n",
   89             tab_prefix, (u_longlong_t)lr->lr_doid,
   90             (u_longlong_t)LR_FOID_GET_OBJ(lr->lr_foid),
   91             (u_longlong_t)LR_FOID_GET_SLOTS(lr->lr_foid),
   92             (longlong_t)lr->lr_mode);
   93         (void) printf("%suid %llu, gid %llu, gen %llu, rdev 0x%llx\n",
   94             tab_prefix,
   95             (u_longlong_t)lr->lr_uid, (u_longlong_t)lr->lr_gid,
   96             (u_longlong_t)lr->lr_gen, (u_longlong_t)lr->lr_rdev);
   97 }
   98 
   99 static void
  100 zil_prt_rec_remove(zilog_t *zilog, int txtype, const void *arg)
  101 {
  102         (void) zilog, (void) txtype;
  103         const lr_remove_t *lr = arg;
  104 
  105         (void) printf("%sdoid %llu, name %s\n", tab_prefix,
  106             (u_longlong_t)lr->lr_doid, (char *)(lr + 1));
  107 }
  108 
  109 static void
  110 zil_prt_rec_link(zilog_t *zilog, int txtype, const void *arg)
  111 {
  112         (void) zilog, (void) txtype;
  113         const lr_link_t *lr = arg;
  114 
  115         (void) printf("%sdoid %llu, link_obj %llu, name %s\n", tab_prefix,
  116             (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_link_obj,
  117             (char *)(lr + 1));
  118 }
  119 
  120 static void
  121 zil_prt_rec_rename(zilog_t *zilog, int txtype, const void *arg)
  122 {
  123         (void) zilog, (void) txtype;
  124         const lr_rename_t *lr = arg;
  125         char *snm = (char *)(lr + 1);
  126         char *tnm = snm + strlen(snm) + 1;
  127 
  128         (void) printf("%ssdoid %llu, tdoid %llu\n", tab_prefix,
  129             (u_longlong_t)lr->lr_sdoid, (u_longlong_t)lr->lr_tdoid);
  130         (void) printf("%ssrc %s tgt %s\n", tab_prefix, snm, tnm);
  131         switch (txtype) {
  132         case TX_RENAME_EXCHANGE:
  133                 (void) printf("%sflags RENAME_EXCHANGE\n", tab_prefix);
  134                 break;
  135         case TX_RENAME_WHITEOUT:
  136                 (void) printf("%sflags RENAME_WHITEOUT\n", tab_prefix);
  137                 break;
  138         }
  139 }
  140 
  141 static int
  142 zil_prt_rec_write_cb(void *data, size_t len, void *unused)
  143 {
  144         (void) unused;
  145         char *cdata = data;
  146 
  147         for (size_t i = 0; i < len; i++) {
  148                 if (isprint(*cdata))
  149                         (void) printf("%c ", *cdata);
  150                 else
  151                         (void) printf("%2X", *cdata);
  152                 cdata++;
  153         }
  154         return (0);
  155 }
  156 
  157 static void
  158 zil_prt_rec_write(zilog_t *zilog, int txtype, const void *arg)
  159 {
  160         const lr_write_t *lr = arg;
  161         abd_t *data;
  162         const blkptr_t *bp = &lr->lr_blkptr;
  163         zbookmark_phys_t zb;
  164         int verbose = MAX(dump_opt['d'], dump_opt['i']);
  165         int error;
  166 
  167         (void) printf("%sfoid %llu, offset %llx, length %llx\n", tab_prefix,
  168             (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_offset,
  169             (u_longlong_t)lr->lr_length);
  170 
  171         if (txtype == TX_WRITE2 || verbose < 5)
  172                 return;
  173 
  174         if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
  175                 (void) printf("%shas blkptr, %s\n", tab_prefix,
  176                     !BP_IS_HOLE(bp) &&
  177                     bp->blk_birth >= spa_min_claim_txg(zilog->zl_spa) ?
  178                     "will claim" : "won't claim");
  179                 print_log_bp(bp, tab_prefix);
  180 
  181                 if (BP_IS_HOLE(bp)) {
  182                         (void) printf("\t\t\tLSIZE 0x%llx\n",
  183                             (u_longlong_t)BP_GET_LSIZE(bp));
  184                         (void) printf("%s<hole>\n", tab_prefix);
  185                         return;
  186                 }
  187                 if (bp->blk_birth < zilog->zl_header->zh_claim_txg) {
  188                         (void) printf("%s<block already committed>\n",
  189                             tab_prefix);
  190                         return;
  191                 }
  192 
  193                 ASSERT3U(BP_GET_LSIZE(bp), !=, 0);
  194                 SET_BOOKMARK(&zb, dmu_objset_id(zilog->zl_os),
  195                     lr->lr_foid, ZB_ZIL_LEVEL,
  196                     lr->lr_offset / BP_GET_LSIZE(bp));
  197 
  198                 data = abd_alloc(BP_GET_LSIZE(bp), B_FALSE);
  199                 error = zio_wait(zio_read(NULL, zilog->zl_spa,
  200                     bp, data, BP_GET_LSIZE(bp), NULL, NULL,
  201                     ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &zb));
  202                 if (error)
  203                         goto out;
  204         } else {
  205                 /* data is stored after the end of the lr_write record */
  206                 data = abd_alloc(lr->lr_length, B_FALSE);
  207                 abd_copy_from_buf(data, lr + 1, lr->lr_length);
  208         }
  209 
  210         (void) printf("%s", tab_prefix);
  211         (void) abd_iterate_func(data,
  212             0, MIN(lr->lr_length, (verbose < 6 ? 20 : SPA_MAXBLOCKSIZE)),
  213             zil_prt_rec_write_cb, NULL);
  214         (void) printf("\n");
  215 
  216 out:
  217         abd_free(data);
  218 }
  219 
  220 static void
  221 zil_prt_rec_truncate(zilog_t *zilog, int txtype, const void *arg)
  222 {
  223         (void) zilog, (void) txtype;
  224         const lr_truncate_t *lr = arg;
  225 
  226         (void) printf("%sfoid %llu, offset 0x%llx, length 0x%llx\n", tab_prefix,
  227             (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset,
  228             (u_longlong_t)lr->lr_length);
  229 }
  230 
  231 static void
  232 zil_prt_rec_setattr(zilog_t *zilog, int txtype, const void *arg)
  233 {
  234         (void) zilog, (void) txtype;
  235         const lr_setattr_t *lr = arg;
  236         time_t atime = (time_t)lr->lr_atime[0];
  237         time_t mtime = (time_t)lr->lr_mtime[0];
  238 
  239         (void) printf("%sfoid %llu, mask 0x%llx\n", tab_prefix,
  240             (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_mask);
  241 
  242         if (lr->lr_mask & AT_MODE) {
  243                 (void) printf("%sAT_MODE  %llo\n", tab_prefix,
  244                     (longlong_t)lr->lr_mode);
  245         }
  246 
  247         if (lr->lr_mask & AT_UID) {
  248                 (void) printf("%sAT_UID   %llu\n", tab_prefix,
  249                     (u_longlong_t)lr->lr_uid);
  250         }
  251 
  252         if (lr->lr_mask & AT_GID) {
  253                 (void) printf("%sAT_GID   %llu\n", tab_prefix,
  254                     (u_longlong_t)lr->lr_gid);
  255         }
  256 
  257         if (lr->lr_mask & AT_SIZE) {
  258                 (void) printf("%sAT_SIZE  %llu\n", tab_prefix,
  259                     (u_longlong_t)lr->lr_size);
  260         }
  261 
  262         if (lr->lr_mask & AT_ATIME) {
  263                 (void) printf("%sAT_ATIME %llu.%09llu %s", tab_prefix,
  264                     (u_longlong_t)lr->lr_atime[0],
  265                     (u_longlong_t)lr->lr_atime[1],
  266                     ctime(&atime));
  267         }
  268 
  269         if (lr->lr_mask & AT_MTIME) {
  270                 (void) printf("%sAT_MTIME %llu.%09llu %s", tab_prefix,
  271                     (u_longlong_t)lr->lr_mtime[0],
  272                     (u_longlong_t)lr->lr_mtime[1],
  273                     ctime(&mtime));
  274         }
  275 }
  276 
  277 static void
  278 zil_prt_rec_setsaxattr(zilog_t *zilog, int txtype, const void *arg)
  279 {
  280         (void) zilog, (void) txtype;
  281         const lr_setsaxattr_t *lr = arg;
  282 
  283         char *name = (char *)(lr + 1);
  284         (void) printf("%sfoid %llu\n", tab_prefix,
  285             (u_longlong_t)lr->lr_foid);
  286 
  287         (void) printf("%sXAT_NAME  %s\n", tab_prefix, name);
  288         if (lr->lr_size == 0) {
  289                 (void) printf("%sXAT_VALUE  NULL\n", tab_prefix);
  290         } else {
  291                 (void) printf("%sXAT_VALUE  ", tab_prefix);
  292                 char *val = name + (strlen(name) + 1);
  293                 for (int i = 0; i < lr->lr_size; i++) {
  294                         (void) printf("%c", *val);
  295                         val++;
  296                 }
  297         }
  298 }
  299 
  300 static void
  301 zil_prt_rec_acl(zilog_t *zilog, int txtype, const void *arg)
  302 {
  303         (void) zilog, (void) txtype;
  304         const lr_acl_t *lr = arg;
  305 
  306         (void) printf("%sfoid %llu, aclcnt %llu\n", tab_prefix,
  307             (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_aclcnt);
  308 }
  309 
  310 typedef void (*zil_prt_rec_func_t)(zilog_t *, int, const void *);
  311 typedef struct zil_rec_info {
  312         zil_prt_rec_func_t      zri_print;
  313         const char              *zri_name;
  314         uint64_t                zri_count;
  315 } zil_rec_info_t;
  316 
  317 static zil_rec_info_t zil_rec_info[TX_MAX_TYPE] = {
  318         {.zri_print = NULL,                 .zri_name = "Total              "},
  319         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE          "},
  320         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR           "},
  321         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKXATTR         "},
  322         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_SYMLINK         "},
  323         {.zri_print = zil_prt_rec_remove,   .zri_name = "TX_REMOVE          "},
  324         {.zri_print = zil_prt_rec_remove,   .zri_name = "TX_RMDIR           "},
  325         {.zri_print = zil_prt_rec_link,     .zri_name = "TX_LINK            "},
  326         {.zri_print = zil_prt_rec_rename,   .zri_name = "TX_RENAME          "},
  327         {.zri_print = zil_prt_rec_write,    .zri_name = "TX_WRITE           "},
  328         {.zri_print = zil_prt_rec_truncate, .zri_name = "TX_TRUNCATE        "},
  329         {.zri_print = zil_prt_rec_setattr,  .zri_name = "TX_SETATTR         "},
  330         {.zri_print = zil_prt_rec_acl,      .zri_name = "TX_ACL_V0          "},
  331         {.zri_print = zil_prt_rec_acl,      .zri_name = "TX_ACL_ACL         "},
  332         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE_ACL      "},
  333         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE_ATTR     "},
  334         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE_ACL_ATTR "},
  335         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR_ACL       "},
  336         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR_ATTR      "},
  337         {.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR_ACL_ATTR  "},
  338         {.zri_print = zil_prt_rec_write,    .zri_name = "TX_WRITE2          "},
  339         {.zri_print = zil_prt_rec_setsaxattr,
  340             .zri_name = "TX_SETSAXATTR      "},
  341         {.zri_print = zil_prt_rec_rename,   .zri_name = "TX_RENAME_EXCHANGE "},
  342         {.zri_print = zil_prt_rec_rename,   .zri_name = "TX_RENAME_WHITEOUT "},
  343 };
  344 
  345 static int
  346 print_log_record(zilog_t *zilog, const lr_t *lr, void *arg, uint64_t claim_txg)
  347 {
  348         (void) arg, (void) claim_txg;
  349         int txtype;
  350         int verbose = MAX(dump_opt['d'], dump_opt['i']);
  351 
  352         /* reduce size of txtype to strip off TX_CI bit */
  353         txtype = lr->lrc_txtype;
  354 
  355         ASSERT(txtype != 0 && (uint_t)txtype < TX_MAX_TYPE);
  356         ASSERT(lr->lrc_txg);
  357 
  358         (void) printf("\t\t%s%s len %6llu, txg %llu, seq %llu\n",
  359             (lr->lrc_txtype & TX_CI) ? "CI-" : "",
  360             zil_rec_info[txtype].zri_name,
  361             (u_longlong_t)lr->lrc_reclen,
  362             (u_longlong_t)lr->lrc_txg,
  363             (u_longlong_t)lr->lrc_seq);
  364 
  365         if (txtype && verbose >= 3) {
  366                 if (!zilog->zl_os->os_encrypted) {
  367                         zil_rec_info[txtype].zri_print(zilog, txtype, lr);
  368                 } else {
  369                         (void) printf("%s(encrypted)\n", tab_prefix);
  370                 }
  371         }
  372 
  373         zil_rec_info[txtype].zri_count++;
  374         zil_rec_info[0].zri_count++;
  375 
  376         return (0);
  377 }
  378 
  379 static int
  380 print_log_block(zilog_t *zilog, const blkptr_t *bp, void *arg,
  381     uint64_t claim_txg)
  382 {
  383         (void) arg;
  384         char blkbuf[BP_SPRINTF_LEN + 10];
  385         int verbose = MAX(dump_opt['d'], dump_opt['i']);
  386         const char *claim;
  387 
  388         if (verbose <= 3)
  389                 return (0);
  390 
  391         if (verbose >= 5) {
  392                 (void) strcpy(blkbuf, ", ");
  393                 snprintf_blkptr(blkbuf + strlen(blkbuf),
  394                     sizeof (blkbuf) - strlen(blkbuf), bp);
  395         } else {
  396                 blkbuf[0] = '\0';
  397         }
  398 
  399         if (claim_txg != 0)
  400                 claim = "already claimed";
  401         else if (bp->blk_birth >= spa_min_claim_txg(zilog->zl_spa))
  402                 claim = "will claim";
  403         else
  404                 claim = "won't claim";
  405 
  406         (void) printf("\tBlock seqno %llu, %s%s\n",
  407             (u_longlong_t)bp->blk_cksum.zc_word[ZIL_ZC_SEQ], claim, blkbuf);
  408 
  409         return (0);
  410 }
  411 
  412 static void
  413 print_log_stats(int verbose)
  414 {
  415         unsigned i, w, p10;
  416 
  417         if (verbose > 3)
  418                 (void) printf("\n");
  419 
  420         if (zil_rec_info[0].zri_count == 0)
  421                 return;
  422 
  423         for (w = 1, p10 = 10; zil_rec_info[0].zri_count >= p10; p10 *= 10)
  424                 w++;
  425 
  426         for (i = 0; i < TX_MAX_TYPE; i++)
  427                 if (zil_rec_info[i].zri_count || verbose >= 3)
  428                         (void) printf("\t\t%s %*llu\n",
  429                             zil_rec_info[i].zri_name, w,
  430                             (u_longlong_t)zil_rec_info[i].zri_count);
  431         (void) printf("\n");
  432 }
  433 
  434 void
  435 dump_intent_log(zilog_t *zilog)
  436 {
  437         const zil_header_t *zh = zilog->zl_header;
  438         int verbose = MAX(dump_opt['d'], dump_opt['i']);
  439         int i;
  440 
  441         if (BP_IS_HOLE(&zh->zh_log) || verbose < 1)
  442                 return;
  443 
  444         (void) printf("\n    ZIL header: claim_txg %llu, "
  445             "claim_blk_seq %llu, claim_lr_seq %llu",
  446             (u_longlong_t)zh->zh_claim_txg,
  447             (u_longlong_t)zh->zh_claim_blk_seq,
  448             (u_longlong_t)zh->zh_claim_lr_seq);
  449         (void) printf(" replay_seq %llu, flags 0x%llx\n",
  450             (u_longlong_t)zh->zh_replay_seq, (u_longlong_t)zh->zh_flags);
  451 
  452         for (i = 0; i < TX_MAX_TYPE; i++)
  453                 zil_rec_info[i].zri_count = 0;
  454 
  455         /* see comment in zil_claim() or zil_check_log_chain() */
  456         if (zilog->zl_spa->spa_uberblock.ub_checkpoint_txg != 0 &&
  457             zh->zh_claim_txg == 0)
  458                 return;
  459 
  460         if (verbose >= 2) {
  461                 (void) printf("\n");
  462                 (void) zil_parse(zilog, print_log_block, print_log_record, NULL,
  463                     zh->zh_claim_txg, B_FALSE);
  464                 print_log_stats(verbose);
  465         }
  466 }
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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/cmd/zdb/zdb_il.c

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/cmd/zdb/zdb_il.c
