granicus.if.org Git - strace/blob - quota.c

   1 /*
   2  * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
   3  * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
   4  * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
   5  * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
   6  * Copyright (c) 2005, 2006 Dmitry V. Levin <ldv@altlinux.org>
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "defs.h"
  33
  34 #define SUBCMDMASK  0x00ff
  35 #define SUBCMDSHIFT 8
  36 #define QCMD_CMD(cmd)   ((uint32_t)(cmd) >> SUBCMDSHIFT)
  37 #define QCMD_TYPE(cmd)  ((uint32_t)(cmd) & SUBCMDMASK)
  38
  39 #define OLD_CMD(cmd)    ((uint32_t)(cmd) << SUBCMDSHIFT)
  40 #define NEW_CMD(cmd)    ((uint32_t)(cmd) | 0x800000)
  41 #define XQM_CMD(cmd)    ((uint32_t)(cmd) | ('X' << SUBCMDSHIFT))
  42
  43 #include "xlat/quotacmds.h"
  44 #include "xlat/quotatypes.h"
  45 #include "xlat/quota_formats.h"
  46 #include "xlat/xfs_quota_flags.h"
  47 #include "xlat/xfs_dqblk_flags.h"
  48 #include "xlat/if_dqblk_valid.h"
  49 #include "xlat/if_dqinfo_valid.h"
  50
  51 struct if_dqblk
  52 {
  53         uint64_t dqb_bhardlimit;
  54         uint64_t dqb_bsoftlimit;
  55         uint64_t dqb_curspace;
  56         uint64_t dqb_ihardlimit;
  57         uint64_t dqb_isoftlimit;
  58         uint64_t dqb_curinodes;
  59         uint64_t dqb_btime;
  60         uint64_t dqb_itime;
  61         uint32_t dqb_valid;
  62 };
  63
  64 struct v1_dqblk
  65 {
  66         uint32_t dqb_bhardlimit;        /* absolute limit on disk blks alloc */
  67         uint32_t dqb_bsoftlimit;        /* preferred limit on disk blks */
  68         uint32_t dqb_curblocks;         /* current block count */
  69         uint32_t dqb_ihardlimit;        /* maximum # allocated inodes */
  70         uint32_t dqb_isoftlimit;        /* preferred inode limit */
  71         uint32_t dqb_curinodes;         /* current # allocated inodes */
  72         time_t  dqb_btime;              /* time limit for excessive disk use */
  73         time_t  dqb_itime;              /* time limit for excessive files */
  74 };
  75
  76 struct v2_dqblk
  77 {
  78         unsigned int dqb_ihardlimit;
  79         unsigned int dqb_isoftlimit;
  80         unsigned int dqb_curinodes;
  81         unsigned int dqb_bhardlimit;
  82         unsigned int dqb_bsoftlimit;
  83         uint64_t dqb_curspace;
  84         time_t  dqb_btime;
  85         time_t  dqb_itime;
  86 };
  87
  88 struct xfs_dqblk
  89 {
  90         int8_t  d_version;              /* version of this structure */
  91         int8_t  d_flags;                /* XFS_{USER,PROJ,GROUP}_QUOTA */
  92         uint16_t d_fieldmask;           /* field specifier */
  93         uint32_t d_id;                  /* user, project, or group ID */
  94         uint64_t d_blk_hardlimit;       /* absolute limit on disk blks */
  95         uint64_t d_blk_softlimit;       /* preferred limit on disk blks */
  96         uint64_t d_ino_hardlimit;       /* maximum # allocated inodes */
  97         uint64_t d_ino_softlimit;       /* preferred inode limit */
  98         uint64_t d_bcount;              /* # disk blocks owned by the user */
  99         uint64_t d_icount;              /* # inodes owned by the user */
 100         int32_t d_itimer;               /* zero if within inode limits */
 101         int32_t d_btimer;               /* similar to above; for disk blocks */
 102         uint16_t d_iwarns;              /* # warnings issued wrt num inodes */
 103         uint16_t d_bwarns;              /* # warnings issued wrt disk blocks */
 104         int32_t d_padding2;             /* padding2 - for future use */
 105         uint64_t d_rtb_hardlimit;       /* absolute limit on realtime blks */
 106         uint64_t d_rtb_softlimit;       /* preferred limit on RT disk blks */
 107         uint64_t d_rtbcount;            /* # realtime blocks owned */
 108         int32_t d_rtbtimer;             /* similar to above; for RT disk blks */
 109         uint16_t d_rtbwarns;            /* # warnings issued wrt RT disk blks */
 110         int16_t d_padding3;             /* padding3 - for future use */
 111         char    d_padding4[8];          /* yet more padding */
 112 };
 113
 114 struct if_dqinfo
 115 {
 116         uint64_t dqi_bgrace;
 117         uint64_t dqi_igrace;
 118         uint32_t dqi_flags;
 119         uint32_t dqi_valid;
 120 };
 121
 122 struct v2_dqinfo
 123 {
 124         unsigned int dqi_bgrace;
 125         unsigned int dqi_igrace;
 126         unsigned int dqi_flags;
 127         unsigned int dqi_blocks;
 128         unsigned int dqi_free_blk;
 129         unsigned int dqi_free_entry;
 130 };
 131
 132 struct v1_dqstats
 133 {
 134         uint32_t lookups;
 135         uint32_t drops;
 136         uint32_t reads;
 137         uint32_t writes;
 138         uint32_t cache_hits;
 139         uint32_t allocated_dquots;
 140         uint32_t free_dquots;
 141         uint32_t syncs;
 142 };
 143
 144 struct v2_dqstats
 145 {
 146         uint32_t lookups;
 147         uint32_t drops;
 148         uint32_t reads;
 149         uint32_t writes;
 150         uint32_t cache_hits;
 151         uint32_t allocated_dquots;
 152         uint32_t free_dquots;
 153         uint32_t syncs;
 154         uint32_t version;
 155 };
 156
 157 typedef struct fs_qfilestat
 158 {
 159         uint64_t qfs_ino;       /* inode number */
 160         uint64_t qfs_nblks;     /* number of BBs 512-byte-blks */
 161         uint32_t qfs_nextents;  /* number of extents */
 162 } fs_qfilestat_t;
 163
 164 struct xfs_dqstats
 165 {
 166         int8_t  qs_version;             /* version number for future changes */
 167         uint16_t qs_flags;              /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
 168         int8_t  qs_pad;                 /* unused */
 169         fs_qfilestat_t qs_uquota;       /* user quota storage information */
 170         fs_qfilestat_t qs_gquota;       /* group quota storage information */
 171         uint32_t qs_incoredqs;          /* number of dquots incore */
 172         int32_t qs_btimelimit;          /* limit for blks timer */
 173         int32_t qs_itimelimit;          /* limit for inodes timer */
 174         int32_t qs_rtbtimelimit;        /* limit for rt blks timer */
 175         uint16_t qs_bwarnlimit;         /* limit for num warnings */
 176         uint16_t qs_iwarnlimit;         /* limit for num warnings */
 177 };
 178
 179 static void
 180 decode_cmd_data(struct tcb *tcp, uint32_t cmd, unsigned long data)
 181 {
 182         switch (cmd) {
 183                 case Q_GETQUOTA:
 184                 case Q_SETQUOTA:
 185                 {
 186                         struct if_dqblk dq;
 187
 188                         if (umove_or_printaddr(tcp, data, &dq))
 189                                 break;
 190                         tprintf("{bhardlimit=%" PRIu64 ", ", dq.dqb_bhardlimit);
 191                         tprintf("bsoftlimit=%" PRIu64 ", ", dq.dqb_bsoftlimit);
 192                         tprintf("curspace=%" PRIu64 ", ", dq.dqb_curspace);
 193                         tprintf("ihardlimit=%" PRIu64 ", ", dq.dqb_ihardlimit);
 194                         tprintf("isoftlimit=%" PRIu64 ", ", dq.dqb_isoftlimit);
 195                         tprintf("curinodes=%" PRIu64 ", ", dq.dqb_curinodes);
 196                         if (!abbrev(tcp)) {
 197                                 tprintf("btime=%" PRIu64 ", ", dq.dqb_btime);
 198                                 tprintf("itime=%" PRIu64 ", ", dq.dqb_itime);
 199                                 tprints("valid=");
 200                                 printflags(if_dqblk_valid,
 201                                            dq.dqb_valid, "QIF_???");
 202                                 tprints("}");
 203                         } else
 204                                 tprints("...}");
 205                         break;
 206                 }
 207                 case Q_V1_GETQUOTA:
 208                 case Q_V1_SETQUOTA:
 209                 {
 210                         struct v1_dqblk dq;
 211
 212                         if (umove_or_printaddr(tcp, data, &dq))
 213                                 break;
 214                         tprintf("{bhardlimit=%u, ", dq.dqb_bhardlimit);
 215                         tprintf("bsoftlimit=%u, ", dq.dqb_bsoftlimit);
 216                         tprintf("curblocks=%u, ", dq.dqb_curblocks);
 217                         tprintf("ihardlimit=%u, ", dq.dqb_ihardlimit);
 218                         tprintf("isoftlimit=%u, ", dq.dqb_isoftlimit);
 219                         tprintf("curinodes=%u, ", dq.dqb_curinodes);
 220                         tprintf("btime=%lu, ", (long) dq.dqb_btime);
 221                         tprintf("itime=%lu}", (long) dq.dqb_itime);
 222                         break;
 223                 }
 224                 case Q_V2_GETQUOTA:
 225                 case Q_V2_SETQUOTA:
 226                 {
 227                         struct v2_dqblk dq;
 228
 229                         if (umove_or_printaddr(tcp, data, &dq))
 230                                 break;
 231                         tprintf("{ihardlimit=%u, ", dq.dqb_ihardlimit);
 232                         tprintf("isoftlimit=%u, ", dq.dqb_isoftlimit);
 233                         tprintf("curinodes=%u, ", dq.dqb_curinodes);
 234                         tprintf("bhardlimit=%u, ", dq.dqb_bhardlimit);
 235                         tprintf("bsoftlimit=%u, ", dq.dqb_bsoftlimit);
 236                         tprintf("curspace=%" PRIu64 ", ", dq.dqb_curspace);
 237                         tprintf("btime=%lu, ", (long) dq.dqb_btime);
 238                         tprintf("itime=%lu}", (long) dq.dqb_itime);
 239                         break;
 240                 }
 241                 case Q_XGETQUOTA:
 242                 case Q_XSETQLIM:
 243                 {
 244                         struct xfs_dqblk dq;
 245
 246                         if (umove_or_printaddr(tcp, data, &dq))
 247                                 break;
 248                         tprintf("{version=%d, ", dq.d_version);
 249                         tprints("flags=");
 250                         printflags(xfs_dqblk_flags,
 251                                    dq.d_flags, "XFS_???_QUOTA");
 252                         tprintf(", fieldmask=%#x, ", dq.d_fieldmask);
 253                         tprintf("id=%u, ", dq.d_id);
 254                         tprintf("blk_hardlimit=%" PRIu64 ", ", dq.d_blk_hardlimit);
 255                         tprintf("blk_softlimit=%" PRIu64 ", ", dq.d_blk_softlimit);
 256                         tprintf("ino_hardlimit=%" PRIu64 ", ", dq.d_ino_hardlimit);
 257                         tprintf("ino_softlimit=%" PRIu64 ", ", dq.d_ino_softlimit);
 258                         tprintf("bcount=%" PRIu64 ", ", dq.d_bcount);
 259                         tprintf("icount=%" PRIu64 ", ", dq.d_icount);
 260                         if (!abbrev(tcp)) {
 261                                 tprintf("itimer=%d, ", dq.d_itimer);
 262                                 tprintf("btimer=%d, ", dq.d_btimer);
 263                                 tprintf("iwarns=%u, ", dq.d_iwarns);
 264                                 tprintf("bwarns=%u, ", dq.d_bwarns);
 265                                 tprintf("rtbcount=%" PRIu64 ", ", dq.d_rtbcount);
 266                                 tprintf("rtbtimer=%d, ", dq.d_rtbtimer);
 267                                 tprintf("rtbwarns=%u}", dq.d_rtbwarns);
 268                         } else
 269                                 tprints("...}");
 270                         break;
 271                 }
 272                 case Q_GETFMT:
 273                 {
 274                         uint32_t fmt;
 275
 276                         if (umove_or_printaddr(tcp, data, &fmt))
 277                                 break;
 278                         tprints("[");
 279                         printxval(quota_formats, fmt, "QFMT_VFS_???");
 280                         tprints("]");
 281                         break;
 282                 }
 283                 case Q_GETINFO:
 284                 case Q_SETINFO:
 285                 {
 286                         struct if_dqinfo dq;
 287
 288                         if (umove_or_printaddr(tcp, data, &dq))
 289                                 break;
 290                         tprintf("{bgrace=%" PRIu64 ", ", dq.dqi_bgrace);
 291                         tprintf("igrace=%" PRIu64 ", ", dq.dqi_igrace);
 292                         tprintf("flags=%#x, ", dq.dqi_flags);
 293                         tprints("valid=");
 294                         printflags(if_dqinfo_valid, dq.dqi_valid, "IIF_???");
 295                         tprints("}");
 296                         break;
 297                 }
 298                 case Q_V2_GETINFO:
 299                 case Q_V2_SETINFO:
 300                 {
 301                         struct v2_dqinfo dq;
 302
 303                         if (umove_or_printaddr(tcp, data, &dq))
 304                                 break;
 305                         tprintf("{bgrace=%u, ", dq.dqi_bgrace);
 306                         tprintf("igrace=%u, ", dq.dqi_igrace);
 307                         tprintf("flags=%#x, ", dq.dqi_flags);
 308                         tprintf("blocks=%u, ", dq.dqi_blocks);
 309                         tprintf("free_blk=%u, ", dq.dqi_free_blk);
 310                         tprintf("free_entry=%u}", dq.dqi_free_entry);
 311                         break;
 312                 }
 313                 case Q_V1_GETSTATS:
 314                 {
 315                         struct v1_dqstats dq;
 316
 317                         if (umove_or_printaddr(tcp, data, &dq))
 318                                 break;
 319                         tprintf("{lookups=%u, ", dq.lookups);
 320                         tprintf("drops=%u, ", dq.drops);
 321                         tprintf("reads=%u, ", dq.reads);
 322                         tprintf("writes=%u, ", dq.writes);
 323                         tprintf("cache_hits=%u, ", dq.cache_hits);
 324                         tprintf("allocated_dquots=%u, ", dq.allocated_dquots);
 325                         tprintf("free_dquots=%u, ", dq.free_dquots);
 326                         tprintf("syncs=%u}", dq.syncs);
 327                         break;
 328                 }
 329                 case Q_V2_GETSTATS:
 330                 {
 331                         struct v2_dqstats dq;
 332
 333                         if (umove_or_printaddr(tcp, data, &dq))
 334                                 break;
 335                         tprintf("{lookups=%u, ", dq.lookups);
 336                         tprintf("drops=%u, ", dq.drops);
 337                         tprintf("reads=%u, ", dq.reads);
 338                         tprintf("writes=%u, ", dq.writes);
 339                         tprintf("cache_hits=%u, ", dq.cache_hits);
 340                         tprintf("allocated_dquots=%u, ", dq.allocated_dquots);
 341                         tprintf("free_dquots=%u, ", dq.free_dquots);
 342                         tprintf("syncs=%u, ", dq.syncs);
 343                         tprintf("version=%u}", dq.version);
 344                         break;
 345                 }
 346                 case Q_XGETQSTAT:
 347                 {
 348                         struct xfs_dqstats dq;
 349
 350                         if (umove_or_printaddr(tcp, data, &dq))
 351                                 break;
 352                         tprintf("{version=%d, ", dq.qs_version);
 353                         if (abbrev(tcp)) {
 354                                 tprints("...}");
 355                                 break;
 356                         }
 357                         tprints("flags=");
 358                         printflags(xfs_quota_flags,
 359                                    dq.qs_flags, "XFS_QUOTA_???");
 360                         tprintf(", incoredqs=%u, ", dq.qs_incoredqs);
 361                         tprintf("u_ino=%" PRIu64 ", ", dq.qs_uquota.qfs_ino);
 362                         tprintf("u_nblks=%" PRIu64 ", ", dq.qs_uquota.qfs_nblks);
 363                         tprintf("u_nextents=%u, ", dq.qs_uquota.qfs_nextents);
 364                         tprintf("g_ino=%" PRIu64 ", ", dq.qs_gquota.qfs_ino);
 365                         tprintf("g_nblks=%" PRIu64 ", ", dq.qs_gquota.qfs_nblks);
 366                         tprintf("g_nextents=%u, ", dq.qs_gquota.qfs_nextents);
 367                         tprintf("btimelimit=%d, ", dq.qs_btimelimit);
 368                         tprintf("itimelimit=%d, ", dq.qs_itimelimit);
 369                         tprintf("rtbtimelimit=%d, ", dq.qs_rtbtimelimit);
 370                         tprintf("bwarnlimit=%u, ", dq.qs_bwarnlimit);
 371                         tprintf("iwarnlimit=%u}", dq.qs_iwarnlimit);
 372                         break;
 373                 }
 374                 case Q_XQUOTAON:
 375                 case Q_XQUOTAOFF:
 376                 {
 377                         uint32_t flag;
 378
 379                         if (umove_or_printaddr(tcp, data, &flag))
 380                                 break;
 381                         tprints("[");
 382                         printflags(xfs_quota_flags, flag, "XFS_QUOTA_???");
 383                         tprints("]");
 384                         break;
 385                 }
 386                 default:
 387                         printaddr(data);
 388                         break;
 389         }
 390 }
 391
 392 SYS_FUNC(quotactl)
 393 {
 394         /*
 395          * The Linux kernel only looks at the low 32 bits of command and id
 396          * arguments, but on some 64-bit architectures (s390x) this word
 397          * will have been sign-extended when we see it.  The high 1 bits
 398          * don't mean anything, so don't confuse the output with them.
 399          */
 400         uint32_t qcmd = tcp->u_arg[0];
 401         uint32_t cmd = QCMD_CMD(qcmd);
 402         uint32_t type = QCMD_TYPE(qcmd);
 403         uint32_t id = tcp->u_arg[2];
 404
 405         if (entering(tcp)) {
 406                 printxval(quotacmds, cmd, "Q_???");
 407                 tprints("|");
 408                 printxval(quotatypes, type, "???QUOTA");
 409                 tprints(", ");
 410                 printpath(tcp, tcp->u_arg[1]);
 411                 tprints(", ");
 412                 switch (cmd) {
 413                         case Q_V1_QUOTAON:
 414                         case Q_QUOTAON:
 415                                 printxval(quota_formats, id, "QFMT_VFS_???");
 416                                 break;
 417                         case Q_V1_GETQUOTA:
 418                         case Q_V2_GETQUOTA:
 419                         case Q_GETQUOTA:
 420                         case Q_XGETQUOTA:
 421                                 tprintf("%u", id);
 422                                 break;
 423                         case Q_SETQLIM:
 424                         case Q_SETQUOTA:
 425                         case Q_V1_SETQUOTA:
 426                         case Q_V1_SETUSE:
 427                         case Q_V2_SETQUOTA:
 428                         case Q_V2_SETUSE:
 429                         case Q_XSETQLIM:
 430                                 tprintf("%u, ", id);
 431                         case Q_SETINFO:
 432                         case Q_V2_SETFLAGS:
 433                         case Q_V2_SETGRACE:
 434                         case Q_V2_SETINFO:
 435                                 decode_cmd_data(tcp, cmd, tcp->u_arg[3]);
 436                                 return RVAL_DECODED;
 437                                 break;
 438                         default:
 439                                 printaddr(tcp->u_arg[2]);
 440                                 break;
 441                 }
 442                 tprints(", ");
 443         } else {
 444                 decode_cmd_data(tcp, cmd, tcp->u_arg[3]);
 445         }
 446         return 0;
 447 }