1 /* 2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk (at) cs.few.eur.nl> 3 * Copyright (c) 1993 Branko Lankester <branko (at) hacktic.nl> 4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs (at) world.std.com> 5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert (at) cistron.nl> 6 * Copyright (c) 2005-2016 Dmitry V. Levin <ldv (at) 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_flags.h" 50 #include "xlat/if_dqinfo_valid.h" 51 52 /* 53 * We add attribute packed due to the fact that the structure is 8-byte aligned 54 * on 64-bit systems and therefore has additional 4 bytes of padding, which 55 * leads to problems when it is used on 32-bit tracee which does not have such 56 * padding. 57 */ 58 struct if_dqblk 59 { 60 uint64_t dqb_bhardlimit; 61 uint64_t dqb_bsoftlimit; 62 uint64_t dqb_curspace; 63 uint64_t dqb_ihardlimit; 64 uint64_t dqb_isoftlimit; 65 uint64_t dqb_curinodes; 66 uint64_t dqb_btime; 67 uint64_t dqb_itime; 68 uint32_t dqb_valid; 69 } ATTRIBUTE_PACKED; 70 71 struct if_nextdqblk { 72 uint64_t dqb_bhardlimit; 73 uint64_t dqb_bsoftlimit; 74 uint64_t dqb_curspace; 75 uint64_t dqb_ihardlimit; 76 uint64_t dqb_isoftlimit; 77 uint64_t dqb_curinodes; 78 uint64_t dqb_btime; 79 uint64_t dqb_itime; 80 uint32_t dqb_valid; 81 uint32_t dqb_id; 82 }; 83 84 struct xfs_dqblk 85 { 86 int8_t d_version; /* version of this structure */ 87 int8_t d_flags; /* XFS_{USER,PROJ,GROUP}_QUOTA */ 88 uint16_t d_fieldmask; /* field specifier */ 89 uint32_t d_id; /* user, project, or group ID */ 90 uint64_t d_blk_hardlimit; /* absolute limit on disk blks */ 91 uint64_t d_blk_softlimit; /* preferred limit on disk blks */ 92 uint64_t d_ino_hardlimit; /* maximum # allocated inodes */ 93 uint64_t d_ino_softlimit; /* preferred inode limit */ 94 uint64_t d_bcount; /* # disk blocks owned by the user */ 95 uint64_t d_icount; /* # inodes owned by the user */ 96 int32_t d_itimer; /* zero if within inode limits */ 97 int32_t d_btimer; /* similar to above; for disk blocks */ 98 uint16_t d_iwarns; /* # warnings issued wrt num inodes */ 99 uint16_t d_bwarns; /* # warnings issued wrt disk blocks */ 100 int32_t d_padding2; /* padding2 - for future use */ 101 uint64_t d_rtb_hardlimit; /* absolute limit on realtime blks */ 102 uint64_t d_rtb_softlimit; /* preferred limit on RT disk blks */ 103 uint64_t d_rtbcount; /* # realtime blocks owned */ 104 int32_t d_rtbtimer; /* similar to above; for RT disk blks */ 105 uint16_t d_rtbwarns; /* # warnings issued wrt RT disk blks */ 106 int16_t d_padding3; /* padding3 - for future use */ 107 char d_padding4[8]; /* yet more padding */ 108 }; 109 110 struct if_dqinfo 111 { 112 uint64_t dqi_bgrace; 113 uint64_t dqi_igrace; 114 uint32_t dqi_flags; 115 uint32_t dqi_valid; 116 }; 117 118 typedef struct fs_qfilestat 119 { 120 uint64_t qfs_ino; /* inode number */ 121 uint64_t qfs_nblks; /* number of BBs 512-byte-blks */ 122 uint32_t qfs_nextents; /* number of extents */ 123 } fs_qfilestat_t; 124 125 struct xfs_dqstats 126 { 127 int8_t qs_version; /* version number for future changes */ 128 uint16_t qs_flags; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */ 129 int8_t qs_pad; /* unused */ 130 fs_qfilestat_t qs_uquota; /* user quota storage information */ 131 fs_qfilestat_t qs_gquota; /* group quota storage information */ 132 uint32_t qs_incoredqs; /* number of dquots incore */ 133 int32_t qs_btimelimit; /* limit for blks timer */ 134 int32_t qs_itimelimit; /* limit for inodes timer */ 135 int32_t qs_rtbtimelimit; /* limit for rt blks timer */ 136 uint16_t qs_bwarnlimit; /* limit for num warnings */ 137 uint16_t qs_iwarnlimit; /* limit for num warnings */ 138 }; 139 140 struct fs_qfilestatv { 141 uint64_t qfs_ino, qfs_nblks; 142 uint32_t qfs_nextents, qfs_pad; 143 }; 144 145 struct fs_quota_statv { 146 int8_t qs_version; 147 uint8_t qs_pad1; 148 uint16_t qs_flags; 149 uint32_t qs_incoredqs; 150 struct fs_qfilestatv qs_uquota; 151 struct fs_qfilestatv qs_gquota; 152 struct fs_qfilestatv qs_pquota; 153 int32_t qs_btimelimit; 154 int32_t qs_itimelimit; 155 int32_t qs_rtbtimelimit; 156 uint16_t qs_bwarnlimit; 157 uint16_t qs_iwarnlimit; 158 uint64_t qs_pad2[8]; 159 }; 160 161 #define PRINT_FIELD_D(prefix, where, field) \ 162 tprintf("%s%s=%lld", (prefix), #field, \ 163 sign_extend_unsigned_to_ll((where).field)) 164 165 #define PRINT_FIELD_U(prefix, where, field) \ 166 tprintf("%s%s=%llu", (prefix), #field, \ 167 zero_extend_signed_to_ull((where).field)) 168 169 #define PRINT_FIELD_X(prefix, where, field) \ 170 tprintf("%s%s=%#llx", (prefix), #field, \ 171 zero_extend_signed_to_ull((where).field)) 172 173 static int 174 decode_cmd_data(struct tcb *tcp, uint32_t id, uint32_t cmd, kernel_ulong_t data) 175 { 176 switch (cmd) { 177 case Q_QUOTAOFF: 178 case Q_SYNC: 179 case Q_XQUOTASYNC: 180 break; 181 case Q_QUOTAON: 182 tprints(", "); 183 printxval(quota_formats, id, "QFMT_VFS_???"); 184 tprints(", "); 185 printpath(tcp, data); 186 break; 187 case Q_GETQUOTA: 188 if (entering(tcp)) { 189 printuid(", ", id); 190 tprints(", "); 191 192 return 0; 193 } 194 195 /* Fall-through */ 196 case Q_SETQUOTA: 197 { 198 struct if_dqblk dq; 199 200 if (entering(tcp)) { 201 printuid(", ", id); 202 tprints(", "); 203 } 204 205 if (umove_or_printaddr(tcp, data, &dq)) 206 break; 207 PRINT_FIELD_U("{", dq, dqb_bhardlimit); 208 PRINT_FIELD_U(", ", dq, dqb_bsoftlimit); 209 PRINT_FIELD_U(", ", dq, dqb_curspace); 210 PRINT_FIELD_U(", ", dq, dqb_ihardlimit); 211 PRINT_FIELD_U(", ", dq, dqb_isoftlimit); 212 PRINT_FIELD_U(", ", dq, dqb_curinodes); 213 if (!abbrev(tcp)) { 214 PRINT_FIELD_U(", ", dq, dqb_btime); 215 PRINT_FIELD_U(", ", dq, dqb_itime); 216 tprints(", dqb_valid="); 217 printflags(if_dqblk_valid, 218 dq.dqb_valid, "QIF_???"); 219 } else { 220 tprints(", ..."); 221 } 222 tprints("}"); 223 break; 224 } 225 case Q_GETNEXTQUOTA: 226 { 227 struct if_nextdqblk dq; 228 229 if (entering(tcp)) { 230 printuid(", ", id); 231 tprints(", "); 232 233 return 0; 234 } 235 236 if (umove_or_printaddr(tcp, data, &dq)) 237 break; 238 PRINT_FIELD_U("{", dq, dqb_bhardlimit); 239 PRINT_FIELD_U(", ", dq, dqb_bsoftlimit); 240 PRINT_FIELD_U(", ", dq, dqb_curspace); 241 PRINT_FIELD_U(", ", dq, dqb_ihardlimit); 242 PRINT_FIELD_U(", ", dq, dqb_isoftlimit); 243 PRINT_FIELD_U(", ", dq, dqb_curinodes); 244 if (!abbrev(tcp)) { 245 PRINT_FIELD_U(", ", dq, dqb_btime); 246 PRINT_FIELD_U(", ", dq, dqb_itime); 247 tprints(", dqb_valid="); 248 printflags(if_dqblk_valid, 249 dq.dqb_valid, "QIF_???"); 250 PRINT_FIELD_U(", ", dq, dqb_id); 251 } else { 252 PRINT_FIELD_U(", ", dq, dqb_id); 253 tprints(", ..."); 254 } 255 tprints("}"); 256 break; 257 } 258 case Q_XGETQUOTA: 259 case Q_XGETNEXTQUOTA: 260 if (entering(tcp)) { 261 printuid(", ", id); 262 tprints(", "); 263 264 return 0; 265 } 266 267 /* Fall-through */ 268 case Q_XSETQLIM: 269 { 270 struct xfs_dqblk dq; 271 272 if (entering(tcp)) { 273 printuid(", ", id); 274 tprints(", "); 275 } 276 277 if (umove_or_printaddr(tcp, data, &dq)) 278 break; 279 PRINT_FIELD_D("{", dq, d_version); 280 tprints(", d_flags="); 281 printflags(xfs_dqblk_flags, 282 (uint8_t) dq.d_flags, "XFS_???_QUOTA"); 283 PRINT_FIELD_X(", ", dq, d_fieldmask); 284 PRINT_FIELD_U(", ", dq, d_id); 285 PRINT_FIELD_U(", ", dq, d_blk_hardlimit); 286 PRINT_FIELD_U(", ", dq, d_blk_softlimit); 287 PRINT_FIELD_U(", ", dq, d_ino_hardlimit); 288 PRINT_FIELD_U(", ", dq, d_ino_softlimit); 289 PRINT_FIELD_U(", ", dq, d_bcount); 290 PRINT_FIELD_U(", ", dq, d_icount); 291 if (!abbrev(tcp)) { 292 PRINT_FIELD_D(", ", dq, d_itimer); 293 PRINT_FIELD_D(", ", dq, d_btimer); 294 PRINT_FIELD_U(", ", dq, d_iwarns); 295 PRINT_FIELD_U(", ", dq, d_bwarns); 296 PRINT_FIELD_U(", ", dq, d_rtb_hardlimit); 297 PRINT_FIELD_U(", ", dq, d_rtb_softlimit); 298 PRINT_FIELD_U(", ", dq, d_rtbcount); 299 PRINT_FIELD_D(", ", dq, d_rtbtimer); 300 PRINT_FIELD_U(", ", dq, d_rtbwarns); 301 } else { 302 tprints(", ..."); 303 } 304 tprints("}"); 305 break; 306 } 307 case Q_GETFMT: 308 { 309 uint32_t fmt; 310 311 if (entering(tcp)) { 312 tprints(", "); 313 314 return 0; 315 } 316 317 if (umove_or_printaddr(tcp, data, &fmt)) 318 break; 319 tprints("["); 320 printxval(quota_formats, fmt, "QFMT_VFS_???"); 321 tprints("]"); 322 break; 323 } 324 case Q_GETINFO: 325 if (entering(tcp)) { 326 tprints(", "); 327 328 return 0; 329 } 330 331 /* Fall-through */ 332 case Q_SETINFO: 333 { 334 struct if_dqinfo dq; 335 336 if (entering(tcp)) 337 tprints(", "); 338 339 if (umove_or_printaddr(tcp, data, &dq)) 340 break; 341 PRINT_FIELD_U("{", dq, dqi_bgrace); 342 PRINT_FIELD_U(", ", dq, dqi_igrace); 343 tprints(", dqi_flags="); 344 printflags(if_dqinfo_flags, dq.dqi_flags, "DQF_???"); 345 tprints(", dqi_valid="); 346 printflags(if_dqinfo_valid, dq.dqi_valid, "IIF_???"); 347 tprints("}"); 348 break; 349 } 350 case Q_XGETQSTAT: 351 { 352 struct xfs_dqstats dq; 353 354 if (entering(tcp)) { 355 tprints(", "); 356 357 return 0; 358 } 359 360 if (umove_or_printaddr(tcp, data, &dq)) 361 break; 362 PRINT_FIELD_D("{", dq, qs_version); 363 if (!abbrev(tcp)) { 364 tprints(", qs_flags="); 365 printflags(xfs_quota_flags, 366 dq.qs_flags, "XFS_QUOTA_???"); 367 PRINT_FIELD_U(", ", dq, qs_incoredqs); 368 PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino); 369 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks); 370 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents); 371 PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino); 372 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks); 373 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents); 374 PRINT_FIELD_D("}, ", dq, qs_btimelimit); 375 PRINT_FIELD_D(", ", dq, qs_itimelimit); 376 PRINT_FIELD_D(", ", dq, qs_rtbtimelimit); 377 PRINT_FIELD_U(", ", dq, qs_bwarnlimit); 378 PRINT_FIELD_U(", ", dq, qs_iwarnlimit); 379 } else { 380 tprints(", ..."); 381 } 382 tprints("}"); 383 break; 384 } 385 case Q_XGETQSTATV: 386 { 387 struct fs_quota_statv dq; 388 389 if (entering(tcp)) { 390 tprints(", "); 391 392 return 0; 393 } 394 395 if (umove_or_printaddr(tcp, data, &dq)) 396 break; 397 PRINT_FIELD_D("{", dq, qs_version); 398 if (!abbrev(tcp)) { 399 tprints(", qs_flags="); 400 printflags(xfs_quota_flags, 401 dq.qs_flags, "XFS_QUOTA_???"); 402 PRINT_FIELD_U(", ", dq, qs_incoredqs); 403 PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino); 404 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks); 405 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents); 406 PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino); 407 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks); 408 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents); 409 PRINT_FIELD_U("}, qs_pquota={", dq.qs_pquota, qfs_ino); 410 PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nblks); 411 PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nextents); 412 PRINT_FIELD_D("}, ", dq, qs_btimelimit); 413 PRINT_FIELD_D(", ", dq, qs_itimelimit); 414 PRINT_FIELD_D(", ", dq, qs_rtbtimelimit); 415 PRINT_FIELD_U(", ", dq, qs_bwarnlimit); 416 PRINT_FIELD_U(", ", dq, qs_iwarnlimit); 417 } else { 418 tprints(", ..."); 419 } 420 tprints("}"); 421 break; 422 } 423 case Q_XQUOTAON: 424 case Q_XQUOTAOFF: 425 { 426 uint32_t flag; 427 428 tprints(", "); 429 430 if (umove_or_printaddr(tcp, data, &flag)) 431 break; 432 tprints("["); 433 printflags(xfs_quota_flags, flag, "XFS_QUOTA_???"); 434 tprints("]"); 435 break; 436 } 437 case Q_XQUOTARM: 438 { 439 uint32_t flag; 440 441 tprints(", "); 442 443 if (umove_or_printaddr(tcp, data, &flag)) 444 break; 445 tprints("["); 446 printflags(xfs_dqblk_flags, flag, "XFS_???_QUOTA"); 447 tprints("]"); 448 break; 449 } 450 default: 451 printuid(", ", id); 452 tprints(", "); 453 printaddr(data); 454 break; 455 } 456 return RVAL_DECODED; 457 } 458 459 SYS_FUNC(quotactl) 460 { 461 /* 462 * The Linux kernel only looks at the low 32 bits of command and id 463 * arguments, but on some 64-bit architectures (s390x) this word 464 * will have been sign-extended when we see it. The high 1 bits 465 * don't mean anything, so don't confuse the output with them. 466 */ 467 uint32_t qcmd = tcp->u_arg[0]; 468 uint32_t cmd = QCMD_CMD(qcmd); 469 uint32_t type = QCMD_TYPE(qcmd); 470 uint32_t id = tcp->u_arg[2]; 471 472 if (entering(tcp)) { 473 tprints("QCMD("); 474 printxval(quotacmds, cmd, "Q_???"); 475 tprints(", "); 476 printxval(quotatypes, type, "???QUOTA"); 477 tprints("), "); 478 printpath(tcp, tcp->u_arg[1]); 479 } 480 return decode_cmd_data(tcp, id, cmd, tcp->u_arg[3]); 481 } 482
