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 * Copyright (c) 2006-2018 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 #include "xfs_quota_stat.h" 36 37 #define SUBCMDMASK 0x00ff 38 #define SUBCMDSHIFT 8 39 #define QCMD_CMD(cmd) ((uint32_t)(cmd) >> SUBCMDSHIFT) 40 #define QCMD_TYPE(cmd) ((uint32_t)(cmd) & SUBCMDMASK) 41 42 #define OLD_CMD(cmd) ((uint32_t)(cmd) << SUBCMDSHIFT) 43 #define NEW_CMD(cmd) ((uint32_t)(cmd) | 0x800000) 44 #define XQM_CMD(cmd) ((uint32_t)(cmd) | ('X' << SUBCMDSHIFT)) 45 46 #include "xlat/quotacmds.h" 47 #include "xlat/quotatypes.h" 48 #include "xlat/quota_formats.h" 49 #include "xlat/xfs_quota_flags.h" 50 #include "xlat/xfs_dqblk_flags.h" 51 #include "xlat/if_dqblk_valid.h" 52 #include "xlat/if_dqinfo_flags.h" 53 #include "xlat/if_dqinfo_valid.h" 54 55 /* 56 * We add attribute packed due to the fact that the structure is 8-byte aligned 57 * on 64-bit systems and therefore has additional 4 bytes of padding, which 58 * leads to problems when it is used on 32-bit tracee which does not have such 59 * padding. 60 */ 61 struct if_dqblk { 62 uint64_t dqb_bhardlimit; 63 uint64_t dqb_bsoftlimit; 64 uint64_t dqb_curspace; 65 uint64_t dqb_ihardlimit; 66 uint64_t dqb_isoftlimit; 67 uint64_t dqb_curinodes; 68 uint64_t dqb_btime; 69 uint64_t dqb_itime; 70 uint32_t dqb_valid; 71 } ATTRIBUTE_PACKED; 72 73 struct if_nextdqblk { 74 uint64_t dqb_bhardlimit; 75 uint64_t dqb_bsoftlimit; 76 uint64_t dqb_curspace; 77 uint64_t dqb_ihardlimit; 78 uint64_t dqb_isoftlimit; 79 uint64_t dqb_curinodes; 80 uint64_t dqb_btime; 81 uint64_t dqb_itime; 82 uint32_t dqb_valid; 83 uint32_t dqb_id; 84 }; 85 86 struct xfs_dqblk { 87 int8_t d_version; /* version of this structure */ 88 uint8_t d_flags; /* XFS_{USER,PROJ,GROUP}_QUOTA */ 89 uint16_t d_fieldmask; /* field specifier */ 90 uint32_t d_id; /* user, project, or group ID */ 91 uint64_t d_blk_hardlimit; /* absolute limit on disk blks */ 92 uint64_t d_blk_softlimit; /* preferred limit on disk blks */ 93 uint64_t d_ino_hardlimit; /* maximum # allocated inodes */ 94 uint64_t d_ino_softlimit; /* preferred inode limit */ 95 uint64_t d_bcount; /* # disk blocks owned by the user */ 96 uint64_t d_icount; /* # inodes owned by the user */ 97 int32_t d_itimer; /* zero if within inode limits */ 98 int32_t d_btimer; /* similar to above; for disk blocks */ 99 uint16_t d_iwarns; /* # warnings issued wrt num inodes */ 100 uint16_t d_bwarns; /* # warnings issued wrt disk blocks */ 101 int32_t d_padding2; /* padding2 - for future use */ 102 uint64_t d_rtb_hardlimit; /* absolute limit on realtime blks */ 103 uint64_t d_rtb_softlimit; /* preferred limit on RT disk blks */ 104 uint64_t d_rtbcount; /* # realtime blocks owned */ 105 int32_t d_rtbtimer; /* similar to above; for RT disk blks */ 106 uint16_t d_rtbwarns; /* # warnings issued wrt RT disk blks */ 107 int16_t d_padding3; /* padding3 - for future use */ 108 char d_padding4[8]; /* yet more padding */ 109 }; 110 111 struct if_dqinfo { 112 uint64_t dqi_bgrace; 113 uint64_t dqi_igrace; 114 uint32_t dqi_flags; 115 uint32_t dqi_valid; 116 }; 117 118 struct fs_qfilestatv { 119 uint64_t qfs_ino, qfs_nblks; 120 uint32_t qfs_nextents, qfs_pad; 121 }; 122 123 struct fs_quota_statv { 124 int8_t qs_version; 125 uint8_t qs_pad1; 126 uint16_t qs_flags; 127 uint32_t qs_incoredqs; 128 struct fs_qfilestatv qs_uquota; 129 struct fs_qfilestatv qs_gquota; 130 struct fs_qfilestatv qs_pquota; 131 int32_t qs_btimelimit; 132 int32_t qs_itimelimit; 133 int32_t qs_rtbtimelimit; 134 uint16_t qs_bwarnlimit; 135 uint16_t qs_iwarnlimit; 136 uint64_t qs_pad2[8]; 137 }; 138 139 static int 140 decode_cmd_data(struct tcb *tcp, uint32_t id, uint32_t cmd, kernel_ulong_t data) 141 { 142 switch (cmd) { 143 case Q_QUOTAOFF: 144 case Q_SYNC: 145 case Q_XQUOTASYNC: 146 break; 147 case Q_QUOTAON: 148 tprints(", "); 149 printxval(quota_formats, id, "QFMT_VFS_???"); 150 tprints(", "); 151 printpath(tcp, data); 152 break; 153 case Q_GETQUOTA: 154 if (entering(tcp)) { 155 printuid(", ", id); 156 tprints(", "); 157 158 return 0; 159 } 160 161 ATTRIBUTE_FALLTHROUGH; 162 case Q_SETQUOTA: 163 { 164 struct if_dqblk dq; 165 166 if (entering(tcp)) { 167 printuid(", ", id); 168 tprints(", "); 169 } 170 171 if (umove_or_printaddr(tcp, data, &dq)) 172 break; 173 PRINT_FIELD_U("{", dq, dqb_bhardlimit); 174 PRINT_FIELD_U(", ", dq, dqb_bsoftlimit); 175 PRINT_FIELD_U(", ", dq, dqb_curspace); 176 PRINT_FIELD_U(", ", dq, dqb_ihardlimit); 177 PRINT_FIELD_U(", ", dq, dqb_isoftlimit); 178 PRINT_FIELD_U(", ", dq, dqb_curinodes); 179 if (!abbrev(tcp)) { 180 PRINT_FIELD_U(", ", dq, dqb_btime); 181 PRINT_FIELD_U(", ", dq, dqb_itime); 182 PRINT_FIELD_FLAGS(", ", dq, dqb_valid, 183 if_dqblk_valid, "QIF_???"); 184 } else { 185 tprints(", ..."); 186 } 187 tprints("}"); 188 break; 189 } 190 case Q_GETNEXTQUOTA: 191 { 192 struct if_nextdqblk dq; 193 194 if (entering(tcp)) { 195 printuid(", ", id); 196 tprints(", "); 197 198 return 0; 199 } 200 201 if (umove_or_printaddr(tcp, data, &dq)) 202 break; 203 PRINT_FIELD_U("{", dq, dqb_bhardlimit); 204 PRINT_FIELD_U(", ", dq, dqb_bsoftlimit); 205 PRINT_FIELD_U(", ", dq, dqb_curspace); 206 PRINT_FIELD_U(", ", dq, dqb_ihardlimit); 207 PRINT_FIELD_U(", ", dq, dqb_isoftlimit); 208 PRINT_FIELD_U(", ", dq, dqb_curinodes); 209 if (!abbrev(tcp)) { 210 PRINT_FIELD_U(", ", dq, dqb_btime); 211 PRINT_FIELD_U(", ", dq, dqb_itime); 212 PRINT_FIELD_FLAGS(", ", dq, dqb_valid, 213 if_dqblk_valid, "QIF_???"); 214 PRINT_FIELD_U(", ", dq, dqb_id); 215 } else { 216 PRINT_FIELD_U(", ", dq, dqb_id); 217 tprints(", ..."); 218 } 219 tprints("}"); 220 break; 221 } 222 case Q_XGETQUOTA: 223 case Q_XGETNEXTQUOTA: 224 if (entering(tcp)) { 225 printuid(", ", id); 226 tprints(", "); 227 228 return 0; 229 } 230 231 ATTRIBUTE_FALLTHROUGH; 232 case Q_XSETQLIM: 233 { 234 struct xfs_dqblk dq; 235 236 if (entering(tcp)) { 237 printuid(", ", id); 238 tprints(", "); 239 } 240 241 if (umove_or_printaddr(tcp, data, &dq)) 242 break; 243 PRINT_FIELD_D("{", dq, d_version); 244 PRINT_FIELD_FLAGS(", ", dq, d_flags, 245 xfs_dqblk_flags, "XFS_???_QUOTA"); 246 PRINT_FIELD_X(", ", dq, d_fieldmask); 247 PRINT_FIELD_U(", ", dq, d_id); 248 PRINT_FIELD_U(", ", dq, d_blk_hardlimit); 249 PRINT_FIELD_U(", ", dq, d_blk_softlimit); 250 PRINT_FIELD_U(", ", dq, d_ino_hardlimit); 251 PRINT_FIELD_U(", ", dq, d_ino_softlimit); 252 PRINT_FIELD_U(", ", dq, d_bcount); 253 PRINT_FIELD_U(", ", dq, d_icount); 254 if (!abbrev(tcp)) { 255 PRINT_FIELD_D(", ", dq, d_itimer); 256 PRINT_FIELD_D(", ", dq, d_btimer); 257 PRINT_FIELD_U(", ", dq, d_iwarns); 258 PRINT_FIELD_U(", ", dq, d_bwarns); 259 PRINT_FIELD_U(", ", dq, d_rtb_hardlimit); 260 PRINT_FIELD_U(", ", dq, d_rtb_softlimit); 261 PRINT_FIELD_U(", ", dq, d_rtbcount); 262 PRINT_FIELD_D(", ", dq, d_rtbtimer); 263 PRINT_FIELD_U(", ", dq, d_rtbwarns); 264 } else { 265 tprints(", ..."); 266 } 267 tprints("}"); 268 break; 269 } 270 case Q_GETFMT: 271 { 272 uint32_t fmt; 273 274 if (entering(tcp)) { 275 tprints(", "); 276 277 return 0; 278 } 279 280 if (umove_or_printaddr(tcp, data, &fmt)) 281 break; 282 tprints("["); 283 printxval(quota_formats, fmt, "QFMT_VFS_???"); 284 tprints("]"); 285 break; 286 } 287 case Q_GETINFO: 288 if (entering(tcp)) { 289 tprints(", "); 290 291 return 0; 292 } 293 294 ATTRIBUTE_FALLTHROUGH; 295 case Q_SETINFO: 296 { 297 struct if_dqinfo dq; 298 299 if (entering(tcp)) 300 tprints(", "); 301 302 if (umove_or_printaddr(tcp, data, &dq)) 303 break; 304 PRINT_FIELD_U("{", dq, dqi_bgrace); 305 PRINT_FIELD_U(", ", dq, dqi_igrace); 306 PRINT_FIELD_FLAGS(", ", dq, dqi_flags, if_dqinfo_flags, "DQF_???"); 307 PRINT_FIELD_FLAGS(", ", dq, dqi_valid, if_dqinfo_valid, "IIF_???"); 308 tprints("}"); 309 break; 310 } 311 case Q_XGETQSTAT: 312 { 313 struct xfs_dqstats dq; 314 315 if (entering(tcp)) { 316 tprints(", "); 317 318 return 0; 319 } 320 if (fetch_struct_quotastat(tcp, data, &dq)) { 321 PRINT_FIELD_D("{", dq, qs_version); 322 if (!abbrev(tcp)) { 323 PRINT_FIELD_FLAGS(", ", dq, qs_flags, 324 xfs_quota_flags, "XFS_QUOTA_???"); 325 PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino); 326 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks); 327 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents); 328 PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino); 329 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks); 330 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents); 331 PRINT_FIELD_U("}, ", dq, qs_incoredqs); 332 PRINT_FIELD_D(", ", dq, qs_btimelimit); 333 PRINT_FIELD_D(", ", dq, qs_itimelimit); 334 PRINT_FIELD_D(", ", dq, qs_rtbtimelimit); 335 PRINT_FIELD_U(", ", dq, qs_bwarnlimit); 336 PRINT_FIELD_U(", ", dq, qs_iwarnlimit); 337 } else { 338 tprints(", ..."); 339 } 340 tprints("}"); 341 } 342 break; 343 } 344 case Q_XGETQSTATV: 345 { 346 struct fs_quota_statv dq; 347 348 if (entering(tcp)) { 349 tprints(", "); 350 351 return 0; 352 } 353 354 if (umove_or_printaddr(tcp, data, &dq)) 355 break; 356 PRINT_FIELD_D("{", dq, qs_version); 357 if (!abbrev(tcp)) { 358 PRINT_FIELD_FLAGS(", ", dq, qs_flags, 359 xfs_quota_flags, "XFS_QUOTA_???"); 360 PRINT_FIELD_U(", ", dq, qs_incoredqs); 361 PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino); 362 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks); 363 PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents); 364 PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino); 365 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks); 366 PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents); 367 PRINT_FIELD_U("}, qs_pquota={", dq.qs_pquota, qfs_ino); 368 PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nblks); 369 PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nextents); 370 PRINT_FIELD_D("}, ", dq, qs_btimelimit); 371 PRINT_FIELD_D(", ", dq, qs_itimelimit); 372 PRINT_FIELD_D(", ", dq, qs_rtbtimelimit); 373 PRINT_FIELD_U(", ", dq, qs_bwarnlimit); 374 PRINT_FIELD_U(", ", dq, qs_iwarnlimit); 375 } else { 376 tprints(", ..."); 377 } 378 tprints("}"); 379 break; 380 } 381 case Q_XQUOTAON: 382 case Q_XQUOTAOFF: 383 { 384 uint32_t flag; 385 386 tprints(", "); 387 388 if (umove_or_printaddr(tcp, data, &flag)) 389 break; 390 tprints("["); 391 printflags(xfs_quota_flags, flag, "XFS_QUOTA_???"); 392 tprints("]"); 393 break; 394 } 395 case Q_XQUOTARM: 396 { 397 uint32_t flag; 398 399 tprints(", "); 400 401 if (umove_or_printaddr(tcp, data, &flag)) 402 break; 403 tprints("["); 404 printflags(xfs_dqblk_flags, flag, "XFS_???_QUOTA"); 405 tprints("]"); 406 break; 407 } 408 default: 409 printuid(", ", id); 410 tprints(", "); 411 printaddr(data); 412 break; 413 } 414 return RVAL_DECODED; 415 } 416 417 SYS_FUNC(quotactl) 418 { 419 /* 420 * The Linux kernel only looks at the low 32 bits of command and id 421 * arguments, but on some 64-bit architectures (s390x) this word 422 * will have been sign-extended when we see it. The high 1 bits 423 * don't mean anything, so don't confuse the output with them. 424 */ 425 uint32_t qcmd = tcp->u_arg[0]; 426 uint32_t cmd = QCMD_CMD(qcmd); 427 uint32_t type = QCMD_TYPE(qcmd); 428 uint32_t id = tcp->u_arg[2]; 429 430 if (entering(tcp)) { 431 tprints("QCMD("); 432 printxval(quotacmds, cmd, "Q_???"); 433 tprints(", "); 434 printxval(quotatypes, type, "???QUOTA"); 435 tprints("), "); 436 printpath(tcp, tcp->u_arg[1]); 437 } 438 return decode_cmd_data(tcp, id, cmd, tcp->u_arg[3]); 439 } 440
