cddl/contrib/opensolaris/cmd/zdb/zdb_il.c

   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 http://www.opensolaris.org/os/licensing.
  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 2006 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 /*
  29  * Print intent log header and statistics.
  30  */
  31
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <ctype.h>
  35 #include <sys/zfs_context.h>
  36 #include <sys/spa.h>
  37 #include <sys/dmu.h>
  38 #include <sys/stat.h>
  39 #include <sys/resource.h>
  40 #include <sys/zil.h>
  41 #include <sys/zil_impl.h>
  42
  43 extern uint8_t dump_opt[256];
  44
  45 static void
  46 print_log_bp(const blkptr_t *bp, const char *prefix)
  47 {
  48         char blkbuf[BP_SPRINTF_LEN];
  49
  50         sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
  51         (void) printf("%s%s\n", prefix, blkbuf);
  52 }
  53
  54 /* ARGSUSED */
  55 static void
  56 zil_prt_rec_create(zilog_t *zilog, int txtype, lr_create_t *lr)
  57 {
  58         time_t crtime = lr->lr_crtime[0];
  59         char *name = (char *)(lr + 1);
  60         char *link = name + strlen(name) + 1;
  61
  62         if (txtype == TX_SYMLINK)
  63                 (void) printf("\t\t\t%s -> %s\n", name, link);
  64         else
  65                 (void) printf("\t\t\t%s\n", name);
  66
  67         (void) printf("\t\t\t%s", ctime(&crtime));
  68         (void) printf("\t\t\tdoid %llu, foid %llu, mode %llo\n",
  69             (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_foid,
  70             (longlong_t)lr->lr_mode);
  71         (void) printf("\t\t\tuid %llu, gid %llu, gen %llu, rdev 0x%llx\n",
  72             (u_longlong_t)lr->lr_uid, (u_longlong_t)lr->lr_gid,
  73             (u_longlong_t)lr->lr_gen, (u_longlong_t)lr->lr_rdev);
  74 }
  75
  76 /* ARGSUSED */
  77 static void
  78 zil_prt_rec_remove(zilog_t *zilog, int txtype, lr_remove_t *lr)
  79 {
  80         (void) printf("\t\t\tdoid %llu, name %s\n",
  81             (u_longlong_t)lr->lr_doid, (char *)(lr + 1));
  82 }
  83
  84 /* ARGSUSED */
  85 static void
  86 zil_prt_rec_link(zilog_t *zilog, int txtype, lr_link_t *lr)
  87 {
  88         (void) printf("\t\t\tdoid %llu, link_obj %llu, name %s\n",
  89             (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_link_obj,
  90             (char *)(lr + 1));
  91 }
  92
  93 /* ARGSUSED */
  94 static void
  95 zil_prt_rec_rename(zilog_t *zilog, int txtype, lr_rename_t *lr)
  96 {
  97         char *snm = (char *)(lr + 1);
  98         char *tnm = snm + strlen(snm) + 1;
  99
 100         (void) printf("\t\t\tsdoid %llu, tdoid %llu\n",
 101             (u_longlong_t)lr->lr_sdoid, (u_longlong_t)lr->lr_tdoid);
 102         (void) printf("\t\t\tsrc %s tgt %s\n", snm, tnm);
 103 }
 104
 105 /* ARGSUSED */
 106 static void
 107 zil_prt_rec_write(zilog_t *zilog, int txtype, lr_write_t *lr)
 108 {
 109         char *data, *dlimit;
 110         blkptr_t *bp = &lr->lr_blkptr;
 111         char buf[SPA_MAXBLOCKSIZE];
 112         int verbose = MAX(dump_opt['d'], dump_opt['i']);
 113         int error;
 114
 115         (void) printf("\t\t\tfoid %llu, offset 0x%llx,"
 116             " length 0x%llx, blkoff 0x%llx\n",
 117             (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset,
 118             (u_longlong_t)lr->lr_length, (u_longlong_t)lr->lr_blkoff);
 119
 120         if (verbose < 5)
 121                 return;
 122
 123         if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
 124                 (void) printf("\t\t\thas blkptr, %s\n",
 125                     bp->blk_birth >= spa_first_txg(zilog->zl_spa) ?
 126                     "will claim" : "won't claim");
 127                 print_log_bp(bp, "\t\t\t");
 128                 if (bp->blk_birth == 0) {
 129                         bzero(buf, sizeof (buf));
 130                 } else {
 131                         zbookmark_t zb;
 132
 133                         ASSERT3U(bp->blk_cksum.zc_word[ZIL_ZC_OBJSET], ==,
 134                             dmu_objset_id(zilog->zl_os));
 135
 136                         zb.zb_objset = bp->blk_cksum.zc_word[ZIL_ZC_OBJSET];
 137                         zb.zb_object = 0;
 138                         zb.zb_level = -1;
 139                         zb.zb_blkid = bp->blk_cksum.zc_word[ZIL_ZC_SEQ];
 140
 141                         error = zio_wait(zio_read(NULL, zilog->zl_spa,
 142                             bp, buf, BP_GET_LSIZE(bp), NULL, NULL,
 143                             ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &zb));
 144                         if (error)
 145                                 return;
 146                 }
 147                 data = buf + lr->lr_blkoff;
 148         } else {
 149                 data = (char *)(lr + 1);
 150         }
 151
 152         dlimit = data + MIN(lr->lr_length,
 153             (verbose < 6 ? 20 : SPA_MAXBLOCKSIZE));
 154
 155         (void) printf("\t\t\t");
 156         while (data < dlimit) {
 157                 if (isprint(*data))
 158                         (void) printf("%c ", *data);
 159                 else
 160                         (void) printf("%2X", *data);
 161                 data++;
 162         }
 163         (void) printf("\n");
 164 }
 165
 166 /* ARGSUSED */
 167 static void
 168 zil_prt_rec_truncate(zilog_t *zilog, int txtype, lr_truncate_t *lr)
 169 {
 170         (void) printf("\t\t\tfoid %llu, offset 0x%llx, length 0x%llx\n",
 171             (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset,
 172             (u_longlong_t)lr->lr_length);
 173 }
 174
 175 /* ARGSUSED */
 176 static void
 177 zil_prt_rec_setattr(zilog_t *zilog, int txtype, lr_setattr_t *lr)
 178 {
 179         time_t atime = (time_t)lr->lr_atime[0];
 180         time_t mtime = (time_t)lr->lr_mtime[0];
 181
 182         (void) printf("\t\t\tfoid %llu, mask 0x%llx\n",
 183             (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_mask);
 184
 185         if (lr->lr_mask & AT_MODE) {
 186                 (void) printf("\t\t\tAT_MODE  %llo\n",
 187                     (longlong_t)lr->lr_mode);
 188         }
 189
 190         if (lr->lr_mask & AT_UID) {
 191                 (void) printf("\t\t\tAT_UID   %llu\n",
 192                     (u_longlong_t)lr->lr_uid);
 193         }
 194
 195         if (lr->lr_mask & AT_GID) {
 196                 (void) printf("\t\t\tAT_GID   %llu\n",
 197                     (u_longlong_t)lr->lr_gid);
 198         }
 199
 200         if (lr->lr_mask & AT_SIZE) {
 201                 (void) printf("\t\t\tAT_SIZE  %llu\n",
 202                     (u_longlong_t)lr->lr_size);
 203         }
 204
 205         if (lr->lr_mask & AT_ATIME) {
 206                 (void) printf("\t\t\tAT_ATIME %llu.%09llu %s",
 207                     (u_longlong_t)lr->lr_atime[0],
 208                     (u_longlong_t)lr->lr_atime[1],
 209                     ctime(&atime));
 210         }
 211
 212         if (lr->lr_mask & AT_MTIME) {
 213                 (void) printf("\t\t\tAT_MTIME %llu.%09llu %s",
 214                     (u_longlong_t)lr->lr_mtime[0],
 215                     (u_longlong_t)lr->lr_mtime[1],
 216                     ctime(&mtime));
 217         }
 218 }
 219
 220 /* ARGSUSED */
 221 static void
 222 zil_prt_rec_acl(zilog_t *zilog, int txtype, lr_acl_t *lr)
 223 {
 224         (void) printf("\t\t\tfoid %llu, aclcnt %llu\n",
 225             (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_aclcnt);
 226 }
 227
 228 typedef void (*zil_prt_rec_func_t)();
 229 typedef struct zil_rec_info {
 230         zil_prt_rec_func_t      zri_print;
 231         char                    *zri_name;
 232         uint64_t                zri_count;
 233 } zil_rec_info_t;
 234
 235 static zil_rec_info_t zil_rec_info[TX_MAX_TYPE] = {
 236         {       NULL,                   "Total      "   },
 237         {       zil_prt_rec_create,     "TX_CREATE  "   },
 238         {       zil_prt_rec_create,     "TX_MKDIR   "   },
 239         {       zil_prt_rec_create,     "TX_MKXATTR "   },
 240         {       zil_prt_rec_create,     "TX_SYMLINK "   },
 241         {       zil_prt_rec_remove,     "TX_REMOVE  "   },
 242         {       zil_prt_rec_remove,     "TX_RMDIR   "   },
 243         {       zil_prt_rec_link,       "TX_LINK    "   },
 244         {       zil_prt_rec_rename,     "TX_RENAME  "   },
 245         {       zil_prt_rec_write,      "TX_WRITE   "   },
 246         {       zil_prt_rec_truncate,   "TX_TRUNCATE"   },
 247         {       zil_prt_rec_setattr,    "TX_SETATTR "   },
 248         {       zil_prt_rec_acl,        "TX_ACL     "   },
 249 };
 250
 251 /* ARGSUSED */
 252 static void
 253 print_log_record(zilog_t *zilog, lr_t *lr, void *arg, uint64_t claim_txg)
 254 {
 255         int txtype;
 256         int verbose = MAX(dump_opt['d'], dump_opt['i']);
 257
 258         txtype = lr->lrc_txtype;
 259
 260         ASSERT(txtype != 0 && (uint_t)txtype < TX_MAX_TYPE);
 261         ASSERT(lr->lrc_txg);
 262
 263         (void) printf("\t\t%s len %6llu, txg %llu, seq %llu\n",
 264             zil_rec_info[txtype].zri_name,
 265             (u_longlong_t)lr->lrc_reclen,
 266             (u_longlong_t)lr->lrc_txg,
 267             (u_longlong_t)lr->lrc_seq);
 268
 269         if (txtype && verbose >= 3)
 270                 zil_rec_info[txtype].zri_print(zilog, txtype, lr);
 271
 272         zil_rec_info[txtype].zri_count++;
 273         zil_rec_info[0].zri_count++;
 274 }
 275
 276 /* ARGSUSED */
 277 static void
 278 print_log_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg)
 279 {
 280         char blkbuf[BP_SPRINTF_LEN];
 281         int verbose = MAX(dump_opt['d'], dump_opt['i']);
 282         char *claim;
 283
 284         if (verbose <= 3)
 285                 return;
 286
 287         if (verbose >= 5) {
 288                 (void) strcpy(blkbuf, ", ");
 289                 sprintf_blkptr(blkbuf + strlen(blkbuf),
 290                     BP_SPRINTF_LEN - strlen(blkbuf), bp);
 291         } else {
 292                 blkbuf[0] = '\0';
 293         }
 294
 295         if (claim_txg != 0)
 296                 claim = "already claimed";
 297         else if (bp->blk_birth >= spa_first_txg(zilog->zl_spa))
 298                 claim = "will claim";
 299         else
 300                 claim = "won't claim";
 301
 302         (void) printf("\tBlock seqno %llu, %s%s\n",
 303             (u_longlong_t)bp->blk_cksum.zc_word[ZIL_ZC_SEQ], claim, blkbuf);
 304 }
 305
 306 static void
 307 print_log_stats(int verbose)
 308 {
 309         int i, w, p10;
 310
 311         if (verbose > 3)
 312                 (void) printf("\n");
 313
 314         if (zil_rec_info[0].zri_count == 0)
 315                 return;
 316
 317         for (w = 1, p10 = 10; zil_rec_info[0].zri_count >= p10; p10 *= 10)
 318                 w++;
 319
 320         for (i = 0; i < TX_MAX_TYPE; i++)
 321                 if (zil_rec_info[i].zri_count || verbose >= 3)
 322                         (void) printf("\t\t%s %*llu\n",
 323                             zil_rec_info[i].zri_name, w,
 324                             (u_longlong_t)zil_rec_info[i].zri_count);
 325         (void) printf("\n");
 326 }
 327
 328 /* ARGSUSED */
 329 void
 330 dump_intent_log(zilog_t *zilog)
 331 {
 332         const zil_header_t *zh = zilog->zl_header;
 333         int verbose = MAX(dump_opt['d'], dump_opt['i']);
 334         int i;
 335
 336         if (zh->zh_log.blk_birth == 0 || verbose < 2)
 337                 return;
 338
 339         (void) printf("\n    ZIL header: claim_txg %llu, seq %llu\n",
 340             (u_longlong_t)zh->zh_claim_txg, (u_longlong_t)zh->zh_replay_seq);
 341
 342         if (verbose >= 4)
 343                 print_log_bp(&zh->zh_log, "\n\tfirst block: ");
 344
 345         for (i = 0; i < TX_MAX_TYPE; i++)
 346                 zil_rec_info[i].zri_count = 0;
 347
 348         if (verbose >= 2) {
 349                 (void) printf("\n");
 350                 (void) zil_parse(zilog, print_log_block, print_log_record, NULL,
 351                     zh->zh_claim_txg);
 352                 print_log_stats(verbose);
 353         }
 354 }