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 */
60 struct 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
72 struct 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
85 struct 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
110 struct if_dqinfo {
111 uint64_t dqi_bgrace;
112 uint64_t dqi_igrace;
113 uint32_t dqi_flags;
114 uint32_t dqi_valid;
115 };
116
117 typedef 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
123 struct 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
137 struct fs_qfilestatv {
138 uint64_t qfs_ino, qfs_nblks;
139 uint32_t qfs_nextents, qfs_pad;
140 };
141
142 struct 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
158 static int
decode_cmd_data(struct tcb * tcp,uint32_t id,uint32_t cmd,kernel_ulong_t data)159 decode_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
SYS_FUNC(quotactl)437 SYS_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