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) 2005-2016 Dmitry V. Levin <ldv@altlinux.org> 7 * Copyright (c) 2006-2017 The strace developers. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include "defs.h" 34#include "print_fields.h" 35 36#define SUBCMDMASK 0x00ff 37#define SUBCMDSHIFT 8 38#define QCMD_CMD(cmd) ((uint32_t)(cmd) >> SUBCMDSHIFT) 39#define QCMD_TYPE(cmd) ((uint32_t)(cmd) & SUBCMDMASK) 40 41#define OLD_CMD(cmd) ((uint32_t)(cmd) << SUBCMDSHIFT) 42#define NEW_CMD(cmd) ((uint32_t)(cmd) | 0x800000) 43#define XQM_CMD(cmd) ((uint32_t)(cmd) | ('X' << SUBCMDSHIFT)) 44 45#include "xlat/quotacmds.h" 46#include "xlat/quotatypes.h" 47#include "xlat/quota_formats.h" 48#include "xlat/xfs_quota_flags.h" 49#include "xlat/xfs_dqblk_flags.h" 50#include "xlat/if_dqblk_valid.h" 51#include "xlat/if_dqinfo_flags.h" 52#include "xlat/if_dqinfo_valid.h" 53 54/* 55 * We add attribute packed due to the fact that the structure is 8-byte aligned 56 * on 64-bit systems and therefore has additional 4 bytes of padding, which 57 * leads to problems when it is used on 32-bit tracee which does not have such 58 * padding. 59 */ 60struct if_dqblk { 61 uint64_t dqb_bhardlimit; 62 uint64_t dqb_bsoftlimit; 63 uint64_t dqb_curspace; 64 uint64_t dqb_ihardlimit; 65 uint64_t dqb_isoftlimit; 66 uint64_t dqb_curinodes; 67 uint64_t dqb_btime; 68 uint64_t dqb_itime; 69 uint32_t dqb_valid; 70} ATTRIBUTE_PACKED; 71 72struct if_nextdqblk { 73 uint64_t dqb_bhardlimit; 74 uint64_t dqb_bsoftlimit; 75 uint64_t dqb_curspace; 76 uint64_t dqb_ihardlimit; 77 uint64_t dqb_isoftlimit; 78 uint64_t dqb_curinodes; 79 uint64_t dqb_btime; 80 uint64_t dqb_itime; 81 uint32_t dqb_valid; 82 uint32_t dqb_id; 83}; 84 85struct xfs_dqblk { 86 int8_t d_version; /* version of this structure */ 87 uint8_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 110struct if_dqinfo { 111 uint64_t dqi_bgrace; 112 uint64_t dqi_igrace; 113 uint32_t dqi_flags; 114 uint32_t dqi_valid; 115}; 116 117typedef struct fs_qfilestat { 118 uint64_t qfs_ino; /* inode number */ 119 uint64_t qfs_nblks; /* number of BBs 512-byte-blks */ 120 uint32_t qfs_nextents; /* number of extents */ 121} fs_qfilestat_t; 122 123struct xfs_dqstats { 124 int8_t qs_version; /* version number for future changes */ 125 uint16_t qs_flags; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */ 126 int8_t qs_pad; /* unused */ 127 fs_qfilestat_t qs_uquota; /* user quota storage information */ 128 fs_qfilestat_t qs_gquota; /* group quota storage information */ 129 uint32_t qs_incoredqs; /* number of dquots incore */ 130 int32_t qs_btimelimit; /* limit for blks timer */ 131 int32_t qs_itimelimit; /* limit for inodes timer */ 132 int32_t qs_rtbtimelimit; /* limit for rt blks timer */ 133 uint16_t qs_bwarnlimit; /* limit for num warnings */ 134 uint16_t qs_iwarnlimit; /* limit for num warnings */ 135}; 136 137struct fs_qfilestatv { 138 uint64_t qfs_ino, qfs_nblks; 139 uint32_t qfs_nextents, qfs_pad; 140}; 141 142struct fs_quota_statv { 143 int8_t qs_version; 144 uint8_t qs_pad1; 145 uint16_t qs_flags; 146 uint32_t qs_incoredqs; 147 struct fs_qfilestatv qs_uquota; 148 struct fs_qfilestatv qs_gquota; 149 struct fs_qfilestatv qs_pquota; 150 int32_t qs_btimelimit; 151 int32_t qs_itimelimit; 152 int32_t qs_rtbtimelimit; 153 uint16_t qs_bwarnlimit; 154 uint16_t qs_iwarnlimit; 155 uint64_t qs_pad2[8]; 156}; 157 158static int 159decode_cmd_data(struct tcb *tcp, uint32_t id, uint32_t cmd, kernel_ulong_t data) 160{ 161 switch (cmd) { 162 case Q_QUOTAOFF: 163 case Q_SYNC: 164 case Q_XQUOTASYNC: 165 break; 166 case Q_QUOTAON: 167 tprints(", "); 168 printxval(quota_formats, id, "QFMT_VFS_???"); 169 tprints(", "); 170 printpath(tcp, data); 171 break; 172 case Q_GETQUOTA: 173 if (entering(tcp)) { 174 printuid(", ", id); 175 tprints(", "); 176 177 return 0; 178 } 179 180 /* Fall-through */ 181 case Q_SETQUOTA: 182 { 183 struct if_dqblk dq; 184 185 if (entering(tcp)) { 186 printuid(", ", id); 187 tprints(", "); 188 } 189 190 if (umove_or_printaddr(tcp, data, &dq)) 191 break; 192 PRINT_FIELD_U("{", dq, dqb_bhardlimit); 193 PRINT_FIELD_U(", ", dq, dqb_bsoftlimit); 194 PRINT_FIELD_U(", ", dq, dqb_curspace); 195 PRINT_FIELD_U(", ", dq, dqb_ihardlimit); 196 PRINT_FIELD_U(", ", dq, dqb_isoftlimit); 197 PRINT_FIELD_U(", ", dq, dqb_curinodes); 198 if (!abbrev(tcp)) { 199 PRINT_FIELD_U(", ", dq, dqb_btime); 200 PRINT_FIELD_U(", ", dq, dqb_itime); 201 PRINT_FIELD_FLAGS(", ", dq, dqb_valid, 202 if_dqblk_valid, "QIF_???"); 203 } else { 204 tprints(", ..."); 205 } 206 tprints("}"); 207 break; 208 } 209 case Q_GETNEXTQUOTA: 210 { 211 struct if_nextdqblk dq; 212 213 if (entering(tcp)) { 214 printuid(", ", id); 215 tprints(", "); 216 217 return 0; 218 } 219 220 if (umove_or_printaddr(tcp, data, &dq)) 221 break; 222 PRINT_FIELD_U("{", dq, dqb_bhardlimit); 223 PRINT_FIELD_U(", ", dq, dqb_bsoftlimit); 224 PRINT_FIELD_U(", ", dq, dqb_curspace); 225 PRINT_FIELD_U(", ", dq, dqb_ihardlimit); 226 PRINT_FIELD_U(", ", dq, dqb_isoftlimit); 227 PRINT_FIELD_U(", ", dq, dqb_curinodes); 228 if (!abbrev(tcp)) { 229 PRINT_FIELD_U(", ", dq, dqb_btime); 230 PRINT_FIELD_U(", ", dq, dqb_itime); 231 PRINT_FIELD_FLAGS(", ", dq, dqb_valid, 232 if_dqblk_valid, "QIF_???"); 233 PRINT_FIELD_U(", ", dq, dqb_id); 234 } else { 235 PRINT_FIELD_U(", ", dq, dqb_id); 236 tprints(", ..."); 237 } 238 tprints("}"); 239 break; 240 } 241 case Q_XGETQUOTA: 242 case Q_XGETNEXTQUOTA: 243 if (entering(tcp)) { 244 printuid(", ", id); 245 tprints(", "); 246 247 return 0; 248 } 249 250 /* Fall-through */ 251 case Q_XSETQLIM: 252 { 253 struct xfs_dqblk dq; 254 255 if (entering(tcp)) { 256 printuid(", ", id); 257 tprints(", "); 258 } 259 260 if (umove_or_printaddr(tcp, data, &dq)) 261 break; 262 PRINT_FIELD_D("{", dq, d_version); 263 PRINT_FIELD_FLAGS(", ", dq, d_flags, 264 xfs_dqblk_flags, "XFS_???_QUOTA"); 265 PRINT_FIELD_X(", ", dq, d_fieldmask); 266 PRINT_FIELD_U(", ", dq, d_id); 267 PRINT_FIELD_U(", ", dq, d_blk_hardlimit); 268 PRINT_FIELD_U(", ", dq, d_blk_softlimit); 269 PRINT_FIELD_U(", ", dq, d_ino_hardlimit); 270 PRINT_FIELD_U(", ", dq, d_ino_softlimit); 271 PRINT_FIELD_U(", ", dq, d_bcount); 272 PRINT_FIELD_U(", ", dq, d_icount); 273 if (!abbrev(tcp)) { 274 PRINT_FIELD_D(", ", dq, d_itimer); 275 PRINT_FIELD_D(", ", dq, d_btimer); 276 PRINT_FIELD_U(", ", dq, d_iwarns); 277 PRINT_FIELD_U(", ", dq, d_bwarns); 278 PRINT_FIELD_U(", ", dq, d_rtb_hardlimit); 279 PRINT_FIELD_U(", ", dq, d_rtb_softlimit); 280 PRINT_FIELD_U(", ", dq, d_rtbcount); 281 PRINT_FIELD_D(", ", dq, d_rtbtimer); 282 PRINT_FIELD_U(", ", dq, d_rtbwarns); 283 } else { 284 tprints(", ..."); 285 } 286 tprints("}"); 287 break; 288 } 289 case Q_GETFMT: 290 { 291 uint32_t fmt; 292 293 if (entering(tcp)) { 294 tprints(", "); 295 296 return 0; 297 } 298 299 if (umove_or_printaddr(tcp, data, &fmt)) 300 break; 301 tprints("["); 302 printxval(quota_formats, fmt, "QFMT_VFS_???"); 303 tprints("]"); 304 break; 305 } 306 case Q_GETINFO: 307 if (entering(tcp)) { 308 tprints(", "); 309 310 return 0; 311 } 312 313 /* Fall-through */ 314 case Q_SETINFO: 315 { 316 struct if_dqinfo dq; 317 318 if (entering(tcp)) 319 tprints(", "); 320 321 if (umove_or_printaddr(tcp, data, &dq)) 322 break; 323 PRINT_FIELD_U("{", dq, dqi_bgrace); 324 PRINT_FIELD_U(", ", dq, dqi_igrace); 325 PRINT_FIELD_FLAGS(", ", dq, dqi_flags, if_dqinfo_flags, "DQF_???"); 326 PRINT_FIELD_FLAGS(", ", dq, dqi_valid, if_dqinfo_valid, "IIF_???"); 327 tprints("}"); 328 break; 329 } 330 case Q_XGETQSTAT: 331 { 332 struct xfs_dqstats dq; 333 334 if (entering(tcp)) { 335 tprints(", "); 336 337 return 0; 338 } 339 340 if (umove_or_printaddr(tcp, data, &dq)) 341 break; 342 PRINT_FIELD_D("{", dq, qs_version); 343 if (!abbrev(tcp)) { 344 PRINT_FIELD_FLAGS(", ", dq, qs_flags, 345 xfs_quota_flags, "XFS_QUOTA_???"); 346 PRINT_FIELD_U(", ", dq, qs_incoredqs); 347 PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino); 348 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks); 349 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents); 350 PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino); 351 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks); 352 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents); 353 PRINT_FIELD_D("}, ", dq, qs_btimelimit); 354 PRINT_FIELD_D(", ", dq, qs_itimelimit); 355 PRINT_FIELD_D(", ", dq, qs_rtbtimelimit); 356 PRINT_FIELD_U(", ", dq, qs_bwarnlimit); 357 PRINT_FIELD_U(", ", dq, qs_iwarnlimit); 358 } else { 359 tprints(", ..."); 360 } 361 tprints("}"); 362 break; 363 } 364 case Q_XGETQSTATV: 365 { 366 struct fs_quota_statv dq; 367 368 if (entering(tcp)) { 369 tprints(", "); 370 371 return 0; 372 } 373 374 if (umove_or_printaddr(tcp, data, &dq)) 375 break; 376 PRINT_FIELD_D("{", dq, qs_version); 377 if (!abbrev(tcp)) { 378 PRINT_FIELD_FLAGS(", ", dq, qs_flags, 379 xfs_quota_flags, "XFS_QUOTA_???"); 380 PRINT_FIELD_U(", ", dq, qs_incoredqs); 381 PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino); 382 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks); 383 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents); 384 PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino); 385 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks); 386 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents); 387 PRINT_FIELD_U("}, qs_pquota={", dq.qs_pquota, qfs_ino); 388 PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nblks); 389 PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nextents); 390 PRINT_FIELD_D("}, ", dq, qs_btimelimit); 391 PRINT_FIELD_D(", ", dq, qs_itimelimit); 392 PRINT_FIELD_D(", ", dq, qs_rtbtimelimit); 393 PRINT_FIELD_U(", ", dq, qs_bwarnlimit); 394 PRINT_FIELD_U(", ", dq, qs_iwarnlimit); 395 } else { 396 tprints(", ..."); 397 } 398 tprints("}"); 399 break; 400 } 401 case Q_XQUOTAON: 402 case Q_XQUOTAOFF: 403 { 404 uint32_t flag; 405 406 tprints(", "); 407 408 if (umove_or_printaddr(tcp, data, &flag)) 409 break; 410 tprints("["); 411 printflags(xfs_quota_flags, flag, "XFS_QUOTA_???"); 412 tprints("]"); 413 break; 414 } 415 case Q_XQUOTARM: 416 { 417 uint32_t flag; 418 419 tprints(", "); 420 421 if (umove_or_printaddr(tcp, data, &flag)) 422 break; 423 tprints("["); 424 printflags(xfs_dqblk_flags, flag, "XFS_???_QUOTA"); 425 tprints("]"); 426 break; 427 } 428 default: 429 printuid(", ", id); 430 tprints(", "); 431 printaddr(data); 432 break; 433 } 434 return RVAL_DECODED; 435} 436 437SYS_FUNC(quotactl) 438{ 439 /* 440 * The Linux kernel only looks at the low 32 bits of command and id 441 * arguments, but on some 64-bit architectures (s390x) this word 442 * will have been sign-extended when we see it. The high 1 bits 443 * don't mean anything, so don't confuse the output with them. 444 */ 445 uint32_t qcmd = tcp->u_arg[0]; 446 uint32_t cmd = QCMD_CMD(qcmd); 447 uint32_t type = QCMD_TYPE(qcmd); 448 uint32_t id = tcp->u_arg[2]; 449 450 if (entering(tcp)) { 451 tprints("QCMD("); 452 printxval(quotacmds, cmd, "Q_???"); 453 tprints(", "); 454 printxval(quotatypes, type, "???QUOTA"); 455 tprints("), "); 456 printpath(tcp, tcp->u_arg[1]); 457 } 458 return decode_cmd_data(tcp, id, cmd, tcp->u_arg[3]); 459} 460