summaryrefslogtreecommitdiff
path: root/setquota.c
blob: f609dc733107dc7d9a217809383ef055806714e9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
/*
 *
 *	Set disk quota from command line 
 *
 *	Jan Kara <jack@suse.cz> - sponsored by SuSE CR
 */

#include "config.h"

#include <rpc/rpc.h>
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <getopt.h>
#include <time.h>
#include <ctype.h>

#if defined(RPC)
#include "rquota.h"
#include "rquota_client.h"
#endif
#include "pot.h"
#include "quotaops.h"
#include "common.h"
#include "quotasys.h"

#define FL_USER 1
#define FL_GROUP 2
#define FL_RPC 4
#define FL_ALL 8
#define FL_PROTO 16
#define FL_GRACE 32
#define FL_INDIVIDUAL_GRACE 64
#define FL_BATCH 128
#define FL_NUMNAMES 256
#define FL_NO_MIXED_PATHS 512
#define FL_CONTINUE_BATCH 1024

static int flags, fmt = -1;
static char **mnt;
char *progname;
static int mntcnt;
static qid_t protoid, id;
static struct util_dqblk toset;

/* Print usage information */
static void usage(void)
{
#if defined(RPC_SETQUOTA)
	char *ropt = "[-rm] ";
#else
	char *ropt = "";
#endif
	errstr(_("Usage:\n\
  setquota [-u|-g] %1$s[-F quotaformat] <user|group>\n\
\t<block-softlimit> <block-hardlimit> <inode-softlimit> <inode-hardlimit> -a|<filesystem>...\n\
  setquota [-u|-g] %1$s[-F quotaformat] <-p protouser|protogroup> <user|group> -a|<filesystem>...\n\
  setquota [-u|-g] %1$s[-F quotaformat] -b [-c] -a|<filesystem>...\n\
  setquota [-u|-g] [-F quotaformat] -t <blockgrace> <inodegrace> -a|<filesystem>...\n\
  setquota [-u|-g] [-F quotaformat] <user|group> -T <blockgrace> <inodegrace> -a|<filesystem>...\n\n\
-u, --user                 set limits for user\n\
-g, --group                set limits for group\n\
-a, --all                  set limits for all filesystems\n\
    --always-resolve       always try to resolve name, even if is\n\
                           composed only of digits\n\
-F, --format=formatname    operate on specific quota format\n\
-p, --prototype=protoname  copy limits from user/group\n\
-b, --batch                read limits from standard input\n\
-c, --continue-batch       continue in input processing in case of an error\n"), ropt);
#if defined(RPC_SETQUOTA)
	fputs(_("-r, --remote               set remote quota (via RPC)\n\
-m, --no-mixed-pathnames      trim leading slashes from NFSv4 mountpoints\n"), stderr);
#endif
	fputs(_("-t, --edit-period          edit grace period\n\
-T, --edit-times           edit grace times for user/group\n\
-h, --help                 display this help text and exit\n\
-V, --version              display version information and exit\n\n"), stderr);
	fprintf(stderr, _("Bugs to: %s\n"), MY_EMAIL);
	exit(1);
}

/* Convert string to number - print errstr message in case of failure */
static qsize_t parse_unum(char *str, char *msg)
{
	char *errch;
	qsize_t ret = strtoull(str, &errch, 0);

	if (*errch) {
		errstr(_("%s: %s\n"), msg, str);
		usage();
	}
	return ret;
}

/* Convert our flags to quota type */
static inline int flag2type(int flags)
{
	if (flags & FL_USER)
		return USRQUOTA;
	if (flags & FL_GROUP)
		return GRPQUOTA;
	return -1;
}

/* Parse options of setquota */
static void parse_options(int argcnt, char **argstr)
{
	int ret, otherargs;
	char *protoname = NULL;

#ifdef RPC_SETQUOTA
	char *opts = "ghp:urmVF:taTbc";
#else
	char *opts = "ghp:uVF:taTbc";
#endif
	struct option long_opts[] = {
		{ "user", 0, NULL, 'u' },
		{ "group", 0, NULL, 'g' },
		{ "prototype", 1, NULL, 'p' },
#ifdef RPC_SETQUOTA
		{ "remote", 0, NULL, 'r' },
		{ "no-mixed-pathnames", 0, NULL, 'm' },
#endif
		{ "all", 0, NULL, 'a' },
		{ "always-resolve", 0, NULL, 256},
		{ "edit-period", 0, NULL, 't' },
		{ "edit-times", 0, NULL, 'T' },
		{ "batch", 0, NULL, 'b' },
		{ "continue", 0, NULL, 'c' },
		{ "format", 1, NULL, 'F' },
		{ "version", 0, NULL, 'V' },
		{ "help", 0, NULL, 'h' },
		{ NULL, 0, NULL, 0 }
	};

	while ((ret = getopt_long(argcnt, argstr, opts, long_opts, NULL)) != -1) {
		switch (ret) {
		  case '?':
		  case 'h':
			  usage();
		  case 'g':
			  flags |= FL_GROUP;
			  break;
		  case 'u':
			  flags |= FL_USER;
			  break;
		  case 'p':
			  flags |= FL_PROTO;
			  protoname = optarg;
			  break;
		  case 'r':
			  flags |= FL_RPC;
			  break;
		  case 'm':
			  flags |= FL_NO_MIXED_PATHS;
			  break;
		  case 'a':
			  flags |= FL_ALL;
			  break;
		  case 256:
			  flags |= FL_NUMNAMES;
			  break;
		  case 't':
			  flags |= FL_GRACE;
			  break;
		  case 'b':
			  flags |= FL_BATCH;
			  break;
		  case 'c':
			  flags |= FL_CONTINUE_BATCH;
			  break;
		  case 'T':
			  flags |= FL_INDIVIDUAL_GRACE;
			  break;
		  case 'F':
			  if ((fmt = name2fmt(optarg)) == QF_ERROR)
				  exit(1);
			  break;
		  case 'V':
			  version();
			  exit(0);
		}
	}
	if (flags & FL_USER && flags & FL_GROUP) {
		errstr(_("Group and user quotas cannot be used together.\n"));
		usage();
	}
	if (flags & FL_PROTO && flags & FL_GRACE) {
		errstr(_("Prototype user has no sense when editing grace times.\n"));
		usage();
	}
	if (flags & FL_INDIVIDUAL_GRACE && flags & FL_GRACE) {
		errstr(_("Cannot set both individual and global grace time.\n"));
		usage();
	}
	if (flags & FL_BATCH && flags & (FL_GRACE | FL_INDIVIDUAL_GRACE)) {
		errstr(_("Batch mode cannot be used for setting grace times.\n"));
		usage();
	}
	if (flags & FL_BATCH && flags & FL_PROTO) {
		errstr(_("Batch mode and prototype user cannot be used together.\n"));
		usage();
	}
	if (flags & FL_RPC && (flags & (FL_GRACE | FL_INDIVIDUAL_GRACE))) {
		errstr(_("Cannot set grace times over RPC protocol.\n"));
		usage();
	}
	if (flags & FL_GRACE)
		otherargs = 2;
	else if (flags & FL_INDIVIDUAL_GRACE)
		otherargs = 3;
	else if (flags & FL_BATCH)
		otherargs = 0;
	else {
		otherargs = 1;
		if (!(flags & FL_PROTO))
			otherargs += 4;
	}
	if (optind + otherargs > argcnt) {
		errstr(_("Bad number of arguments.\n"));
		usage();
	}
	if (!(flags & (FL_USER | FL_GROUP)))
		flags |= FL_USER;
	if (!(flags & (FL_GRACE | FL_BATCH))) {
		id = name2id(argstr[optind++], flag2type(flags), !!(flags & FL_NUMNAMES), NULL);
		if (!(flags & (FL_GRACE | FL_INDIVIDUAL_GRACE | FL_PROTO))) {
			toset.dqb_bsoftlimit = parse_unum(argstr[optind++], _("Bad block softlimit"));
			toset.dqb_bhardlimit = parse_unum(argstr[optind++], _("Bad block hardlimit"));
			toset.dqb_isoftlimit = parse_unum(argstr[optind++], _("Bad inode softlimit"));
			toset.dqb_ihardlimit = parse_unum(argstr[optind++], _("Bad inode hardlimit"));
		}
		else if (flags & FL_PROTO)
			protoid = name2id(protoname, flag2type(flags), !!(flags & FL_NUMNAMES), NULL);
	}
	if (flags & FL_GRACE) {
		toset.dqb_btime = parse_unum(argstr[optind++], _("Bad block grace time"));
		toset.dqb_itime = parse_unum(argstr[optind++], _("Bad inode grace time"));
	}
	else if (flags & FL_INDIVIDUAL_GRACE) {
		time_t now;

		time(&now);
		if (!strcmp(argstr[optind], _("unset"))) {
			toset.dqb_btime = 0;
			optind++;
		}
		else
			toset.dqb_btime = now + parse_unum(argstr[optind++], _("Bad block grace time"));
		if (!strcmp(argstr[optind], _("unset"))) {
			toset.dqb_itime = 0;
			optind++;
		}
		else
			toset.dqb_itime = now + parse_unum(argstr[optind++], _("Bad inode grace time"));
	}
	if (!(flags & FL_ALL)) {
		mntcnt = argcnt - optind;
		mnt = argstr + optind;
		if (!mntcnt) {
			errstr(_("Mountpoint not specified.\n"));
			usage();
		}
	}
}

/* Set user limits */
static int setlimits(struct quota_handle **handles)
{
	struct dquot *q, *protoq, *protoprivs = NULL, *curprivs;
	int ret = 0;

	curprivs = getprivs(id, handles, 0);
	if (flags & FL_PROTO) {
		protoprivs = getprivs(protoid, handles, 0);
		for (q = curprivs, protoq = protoprivs; q && protoq; q = q->dq_next, protoq = protoq->dq_next) {
			q->dq_dqb.dqb_bsoftlimit = protoq->dq_dqb.dqb_bsoftlimit;
			q->dq_dqb.dqb_bhardlimit = protoq->dq_dqb.dqb_bhardlimit;
			q->dq_dqb.dqb_isoftlimit = protoq->dq_dqb.dqb_isoftlimit;
			q->dq_dqb.dqb_ihardlimit = protoq->dq_dqb.dqb_ihardlimit;
			update_grace_times(q);
		}
		freeprivs(protoprivs);
	}
	else {
		for (q = curprivs; q; q = q->dq_next) {
			q->dq_dqb.dqb_bsoftlimit = toset.dqb_bsoftlimit;
			q->dq_dqb.dqb_bhardlimit = toset.dqb_bhardlimit;
			q->dq_dqb.dqb_isoftlimit = toset.dqb_isoftlimit;
			q->dq_dqb.dqb_ihardlimit = toset.dqb_ihardlimit;
			update_grace_times(q);
		}
	}
	if (putprivs(curprivs, COMMIT_LIMITS) == -1)
		ret = -1;
	freeprivs(curprivs);
	return ret;
}

#define MAXLINELEN 65536

/* Read & parse one batch entry */
static int read_entry(qid_t *id, qsize_t *isoftlimit, qsize_t *ihardlimit, qsize_t *bsoftlimit, qsize_t *bhardlimit)
{
	static int line = 0;
	char name[MAXNAMELEN+1];
	char linebuf[MAXLINELEN], *chptr;
	unsigned long is, ih, bs, bh;
	int ret;

	while (1) {
		line++;
		if (!fgets(linebuf, sizeof(linebuf), stdin))
			return -1;
		if (linebuf[strlen(linebuf)-1] != '\n')
			die(1, _("Line %d too long.\n"), line);
		/* Comment? */
		if (linebuf[0] == '#')
			continue;
		/* Blank line? */
		chptr = linebuf;
		while (isblank(*chptr))
			chptr++;
		if (*chptr == '\n')
			continue;
		ret = sscanf(chptr, "%s %lu %lu %lu %lu", name, &bs, &bh, &is, &ih);
		if (ret != 5) {
			errstr(_("Cannot parse input line %d.\n"), line);
			if (!(flags & FL_CONTINUE_BATCH))
				die(1, _("Exitting.\n"));
			errstr(_("Skipping line.\n"));
			continue;
		}
		*id = name2id(name, flag2type(flags), !!(flags & FL_NUMNAMES), &ret);
		if (ret) {
			errstr(_("Unable to resolve name '%s' on line %d.\n"), name, line);
			if (!(flags & FL_CONTINUE_BATCH))
				die(1, _("Exitting.\n"));
			errstr(_("Skipping line.\n"));
			continue;
		}
		break;
	}
	*isoftlimit = is;
	*ihardlimit = ih;
	*bsoftlimit = bs;
	*bhardlimit = bh;
	return 0;
}

/* Set user limits in batch mode */
static int batch_setlimits(struct quota_handle **handles)
{
	struct dquot *curprivs, *q;
	qsize_t bhardlimit, bsoftlimit, ihardlimit, isoftlimit;
	qid_t id;
	int ret = 0;

	while (!read_entry(&id, &isoftlimit, &ihardlimit, &bsoftlimit, &bhardlimit)) {
		curprivs = getprivs(id, handles, 0);
		for (q = curprivs; q; q = q->dq_next) {
			q->dq_dqb.dqb_bsoftlimit = bsoftlimit;
			q->dq_dqb.dqb_bhardlimit = bhardlimit;
			q->dq_dqb.dqb_isoftlimit = isoftlimit;
			q->dq_dqb.dqb_ihardlimit = ihardlimit;
			update_grace_times(q);
		}
		if (putprivs(curprivs, COMMIT_LIMITS) == -1)
			ret = -1;
		freeprivs(curprivs);
	}
	return ret;
}

/* Set grace times */
static int setgraces(struct quota_handle **handles)
{
	int i, ret = 0;

	for (i = 0; handles[i]; i++) {
		if (!handles[i]->qh_ops->write_info) {
			errstr(_("Setting grace period on %s is not supported.\n"), handles[i]->qh_quotadev);
			ret = -1;
			continue;
		}
		handles[i]->qh_info.dqi_bgrace = toset.dqb_btime;
		handles[i]->qh_info.dqi_igrace = toset.dqb_itime;
		mark_quotafile_info_dirty(handles[i]);
	}
	return ret;
}

/* Set grace times for individual user */
static int setindivgraces(struct quota_handle **handles)
{
	int ret = 0;
	struct dquot *q, *curprivs;

	curprivs = getprivs(id, handles, 0);
	for (q = curprivs; q; q = q->dq_next) {
		if (q->dq_dqb.dqb_bsoftlimit && toqb(q->dq_dqb.dqb_curspace) > q->dq_dqb.dqb_bsoftlimit)
			q->dq_dqb.dqb_btime = toset.dqb_btime;
		else
			errstr(_("Not setting block grace time on %s because softlimit is not exceeded.\n"), q->dq_h->qh_quotadev);
		if (q->dq_dqb.dqb_isoftlimit && q->dq_dqb.dqb_curinodes > q->dq_dqb.dqb_isoftlimit)
			q->dq_dqb.dqb_itime = toset.dqb_itime;
		else
			errstr(_("Not setting inode grace time on %s because softlimit is not exceeded.\n"), q->dq_h->qh_quotadev);
	}
	if (putprivs(curprivs, COMMIT_TIMES) == -1) {
		errstr(_("cannot write times for %s. Maybe kernel does not support such operation?\n"), _(type2name(flags & FL_USER ? USRQUOTA : GRPQUOTA)));
		ret = -1;
	}
	freeprivs(curprivs);
	return ret;
}

int main(int argc, char **argv)
{
	struct quota_handle **handles;
	int ret;

	gettexton();
	progname = basename(argv[0]);

	parse_options(argc, argv);
	init_kernel_interface();

	if (flags & FL_ALL)
		handles = create_handle_list(0, NULL, flag2type(flags), fmt,
			(flags & FL_NO_MIXED_PATHS) ? 0 : IOI_NFS_MIXED_PATHS,
			(flags & FL_RPC) ? 0 : MS_LOCALONLY);
	else
		handles = create_handle_list(mntcnt, mnt, flag2type(flags), fmt,
			(flags & FL_NO_MIXED_PATHS) ? 0 : IOI_NFS_MIXED_PATHS,
			(flags & FL_RPC) ? 0 : MS_LOCALONLY);

	if (flags & FL_GRACE)
		ret = setgraces(handles);
	else if (flags & FL_INDIVIDUAL_GRACE)
		ret = setindivgraces(handles);
	else if (flags & FL_BATCH)
		ret = batch_setlimits(handles);
	else
		ret = setlimits(handles);

	if (dispose_handle_list(handles) == -1)
		ret = -1;

	return ret ? 1 : 0;
}