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Commit | Line | Data |
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e076b552 | 1 | #include <assert.h> |
fd6b7a7f KZ |
2 | #include <stdlib.h> |
3 | #include <stdio.h> | |
4 | #include <getopt.h> | |
5 | #include <string.h> | |
fd6b7a7f | 6 | #include <errno.h> |
5c36a0eb | 7 | #include <sys/stat.h> |
ffa63a3d | 8 | #include <unistd.h> |
6274b987 KC |
9 | #include <sys/types.h> |
10 | #include <sys/wait.h> | |
11 | #include <fcntl.h> | |
3399a218 | 12 | #include <stdint.h> |
57a60bf0 | 13 | #include <ctype.h> |
81772d3c | 14 | |
248a7f70 | 15 | #include <libsmartcols.h> |
b5b2c388 | 16 | |
d335c9bd KZ |
17 | #include "c.h" |
18 | #include "nls.h" | |
3399a218 MK |
19 | #include "bitops.h" |
20 | #include "blkdev.h" | |
4e270e3f | 21 | #include "pathnames.h" |
bfbb12d2 | 22 | #include "xalloc.h" |
18b3e549 | 23 | #include "strutils.h" |
e07fdac4 | 24 | #include "optutils.h" |
efb8854f | 25 | #include "closestream.h" |
167eaed7 | 26 | |
d335c9bd | 27 | #include "swapheader.h" |
18b3e549 | 28 | #include "swapprober.h" |
0b0c231f KZ |
29 | #include "swapon-common.h" |
30 | ||
ffa63a3d MF |
31 | #ifdef HAVE_SYS_SWAP_H |
32 | # include <sys/swap.h> | |
33 | #endif | |
34 | ||
c2301380 | 35 | #ifndef SWAP_FLAG_DISCARD |
d6387c98 | 36 | # define SWAP_FLAG_DISCARD 0x10000 /* enable discard for swap */ |
c2301380 HD |
37 | #endif |
38 | ||
d6387c98 RA |
39 | #ifndef SWAP_FLAG_DISCARD_ONCE |
40 | # define SWAP_FLAG_DISCARD_ONCE 0x20000 /* discard swap area at swapon-time */ | |
41 | #endif | |
42 | ||
43 | #ifndef SWAP_FLAG_DISCARD_PAGES | |
44 | # define SWAP_FLAG_DISCARD_PAGES 0x40000 /* discard page-clusters after use */ | |
45 | #endif | |
46 | ||
47 | #define SWAP_FLAGS_DISCARD_VALID (SWAP_FLAG_DISCARD | SWAP_FLAG_DISCARD_ONCE | \ | |
48 | SWAP_FLAG_DISCARD_PAGES) | |
49 | ||
9514a612 KZ |
50 | #ifndef SWAP_FLAG_PREFER |
51 | # define SWAP_FLAG_PREFER 0x8000 /* set if swap priority specified */ | |
52 | #endif | |
53 | ||
54 | #ifndef SWAP_FLAG_PRIO_MASK | |
55 | # define SWAP_FLAG_PRIO_MASK 0x7fff | |
56 | #endif | |
57 | ||
58 | #ifndef SWAP_FLAG_PRIO_SHIFT | |
59 | # define SWAP_FLAG_PRIO_SHIFT 0 | |
60 | #endif | |
61 | ||
ffa63a3d MF |
62 | #ifndef SWAPON_HAS_TWO_ARGS |
63 | /* libc is insane, let's call the kernel */ | |
64 | # include <sys/syscall.h> | |
65 | # define swapon(path, flags) syscall(SYS_swapon, path, flags) | |
ffa63a3d MF |
66 | #endif |
67 | ||
3399a218 MK |
68 | #define MAX_PAGESIZE (64 * 1024) |
69 | ||
b443c177 | 70 | #ifndef UUID_STR_LEN |
9f20d800 | 71 | # define UUID_STR_LEN 37 |
b443c177 PP |
72 | #endif |
73 | ||
e8be80dd KZ |
74 | enum { |
75 | SIG_SWAPSPACE = 1, | |
76 | SIG_SWSUSPEND | |
77 | }; | |
78 | ||
e076b552 SK |
79 | /* column names */ |
80 | struct colinfo { | |
81 | const char *name; /* header */ | |
82 | double whint; /* width hint (N < 1 is in percent of termwidth) */ | |
248a7f70 | 83 | int flags; /* SCOLS_FL_* */ |
e076b552 SK |
84 | const char *help; |
85 | }; | |
248a7f70 | 86 | |
5db57cfc SK |
87 | enum { |
88 | COL_PATH, | |
89 | COL_TYPE, | |
90 | COL_SIZE, | |
91 | COL_USED, | |
92 | COL_PRIO, | |
93 | COL_UUID, | |
94 | COL_LABEL | |
95 | }; | |
2ba641e5 | 96 | static struct colinfo infos[] = { |
e076b552 | 97 | [COL_PATH] = { "NAME", 0.20, 0, N_("device file or partition path") }, |
248a7f70 OO |
98 | [COL_TYPE] = { "TYPE", 0.20, SCOLS_FL_TRUNC, N_("type of the device")}, |
99 | [COL_SIZE] = { "SIZE", 0.20, SCOLS_FL_RIGHT, N_("size of the swap area")}, | |
100 | [COL_USED] = { "USED", 0.20, SCOLS_FL_RIGHT, N_("bytes in use")}, | |
101 | [COL_PRIO] = { "PRIO", 0.20, SCOLS_FL_RIGHT, N_("swap priority")}, | |
5db57cfc SK |
102 | [COL_UUID] = { "UUID", 0.20, 0, N_("swap uuid")}, |
103 | [COL_LABEL] = { "LABEL", 0.20, 0, N_("swap label")}, | |
e076b552 | 104 | }; |
a560a348 | 105 | |
6c44094a KZ |
106 | |
107 | /* swap area properties */ | |
108 | struct swap_prop { | |
109 | int discard; /* discard policy */ | |
110 | int priority; /* non-prioritized swap by default */ | |
111 | int no_fail; /* skip device if not exist */ | |
112 | }; | |
113 | ||
114 | /* device description */ | |
115 | struct swap_device { | |
116 | const char *path; /* device or file to be turned on */ | |
9eeba70e SK |
117 | const char *label; /* swap label */ |
118 | const char *uuid; /* unique identifier */ | |
6c44094a KZ |
119 | unsigned int pagesize; |
120 | }; | |
121 | ||
122 | /* control struct */ | |
123 | struct swapon_ctl { | |
9eeba70e | 124 | int columns[ARRAY_SIZE(infos) * 2]; /* --show columns */ |
6c44094a KZ |
125 | int ncolumns; /* number of columns */ |
126 | ||
127 | struct swap_prop props; /* global settings for all devices */ | |
128 | ||
9eeba70e SK |
129 | unsigned int |
130 | all:1, /* turn on all swap devices */ | |
131 | bytes:1, /* display --show in bytes */ | |
132 | fix_page_size:1, /* reinitialize page size */ | |
9eeba70e SK |
133 | no_heading:1, /* toggle --show headers */ |
134 | raw:1, /* toggle --show alignment */ | |
135 | show:1, /* display --show information */ | |
136 | verbose:1; /* be chatty */ | |
137 | }; | |
e076b552 SK |
138 | |
139 | static int column_name_to_id(const char *name, size_t namesz) | |
140 | { | |
141 | size_t i; | |
142 | ||
143 | assert(name); | |
144 | ||
a560a348 | 145 | for (i = 0; i < ARRAY_SIZE(infos); i++) { |
e076b552 SK |
146 | const char *cn = infos[i].name; |
147 | ||
148 | if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) | |
149 | return i; | |
150 | } | |
151 | warnx(_("unknown column: %s"), name); | |
152 | return -1; | |
153 | } | |
154 | ||
9eeba70e | 155 | static inline int get_column_id(const struct swapon_ctl *ctl, int num) |
e076b552 | 156 | { |
9eeba70e SK |
157 | assert(num < ctl->ncolumns); |
158 | assert(ctl->columns[num] < (int) ARRAY_SIZE(infos)); | |
e076b552 | 159 | |
9eeba70e | 160 | return ctl->columns[num]; |
e076b552 SK |
161 | } |
162 | ||
9eeba70e | 163 | static inline struct colinfo *get_column_info(const struct swapon_ctl *ctl, unsigned num) |
e076b552 | 164 | { |
9eeba70e | 165 | return &infos[get_column_id(ctl, num)]; |
e076b552 SK |
166 | } |
167 | ||
9eeba70e | 168 | static void add_scols_line(const struct swapon_ctl *ctl, struct libscols_table *table, struct libmnt_fs *fs) |
e076b552 SK |
169 | { |
170 | int i; | |
248a7f70 | 171 | struct libscols_line *line; |
5db57cfc SK |
172 | blkid_probe pr = NULL; |
173 | const char *data; | |
e076b552 | 174 | |
248a7f70 | 175 | assert(table); |
e076b552 SK |
176 | assert(fs); |
177 | ||
248a7f70 | 178 | line = scols_table_new_line(table, NULL); |
e5166348 | 179 | if (!line) |
780ce22c KZ |
180 | err(EXIT_FAILURE, _("failed to allocate output line")); |
181 | ||
5db57cfc SK |
182 | data = mnt_fs_get_source(fs); |
183 | if (access(data, R_OK) == 0) | |
184 | pr = get_swap_prober(data); | |
9eeba70e | 185 | for (i = 0; i < ctl->ncolumns; i++) { |
e076b552 | 186 | char *str = NULL; |
7ae8b469 | 187 | off_t size; |
e076b552 | 188 | |
9eeba70e | 189 | switch (get_column_id(ctl, i)) { |
e076b552 | 190 | case COL_PATH: |
a0e35e30 | 191 | xasprintf(&str, "%s", mnt_fs_get_source(fs)); |
e076b552 SK |
192 | break; |
193 | case COL_TYPE: | |
a0e35e30 | 194 | xasprintf(&str, "%s", mnt_fs_get_swaptype(fs)); |
e076b552 SK |
195 | break; |
196 | case COL_SIZE: | |
7ae8b469 SK |
197 | size = mnt_fs_get_size(fs); |
198 | size *= 1024; /* convert to bytes */ | |
9eeba70e | 199 | if (ctl->bytes) |
a0e35e30 | 200 | xasprintf(&str, "%jd", size); |
7ae8b469 SK |
201 | else |
202 | str = size_to_human_string(SIZE_SUFFIX_1LETTER, size); | |
e076b552 SK |
203 | break; |
204 | case COL_USED: | |
7ae8b469 SK |
205 | size = mnt_fs_get_usedsize(fs); |
206 | size *= 1024; /* convert to bytes */ | |
9eeba70e | 207 | if (ctl->bytes) |
a0e35e30 | 208 | xasprintf(&str, "%jd", size); |
7ae8b469 SK |
209 | else |
210 | str = size_to_human_string(SIZE_SUFFIX_1LETTER, size); | |
e076b552 SK |
211 | break; |
212 | case COL_PRIO: | |
a0e35e30 | 213 | xasprintf(&str, "%d", mnt_fs_get_priority(fs)); |
e076b552 | 214 | break; |
5db57cfc SK |
215 | case COL_UUID: |
216 | if (pr && !blkid_probe_lookup_value(pr, "UUID", &data, NULL)) | |
217 | xasprintf(&str, "%s", data); | |
5db57cfc SK |
218 | break; |
219 | case COL_LABEL: | |
220 | if (pr && !blkid_probe_lookup_value(pr, "LABEL", &data, NULL)) | |
221 | xasprintf(&str, "%s", data); | |
5db57cfc | 222 | break; |
e076b552 SK |
223 | default: |
224 | break; | |
225 | } | |
226 | ||
780ce22c KZ |
227 | if (str && scols_line_refer_data(line, i, str)) |
228 | err(EXIT_FAILURE, _("failed to add output data")); | |
e076b552 | 229 | } |
5db57cfc SK |
230 | if (pr) |
231 | blkid_free_probe(pr); | |
e076b552 SK |
232 | return; |
233 | } | |
234 | ||
d335c9bd | 235 | static int display_summary(void) |
fd6b7a7f | 236 | { |
5072b90a | 237 | struct libmnt_table *st = get_swaps(); |
64b58881 KZ |
238 | struct libmnt_iter *itr; |
239 | struct libmnt_fs *fs; | |
fd6b7a7f | 240 | |
64b58881 | 241 | if (!st) |
57a60bf0 | 242 | return -1; |
e8f26419 | 243 | |
a2f17bb2 KZ |
244 | if (mnt_table_is_empty(st)) |
245 | return 0; | |
246 | ||
64b58881 KZ |
247 | itr = mnt_new_iter(MNT_ITER_FORWARD); |
248 | if (!itr) | |
249 | err(EXIT_FAILURE, _("failed to initialize libmount iterator")); | |
57a60bf0 | 250 | |
a2f17bb2 | 251 | printf(_("%s\t\t\t\tType\t\tSize\tUsed\tPriority\n"), _("Filename")); |
64b58881 KZ |
252 | |
253 | while (mnt_table_next_fs(st, itr, &fs) == 0) { | |
74712441 | 254 | printf("%-39s\t%-8s\t%jd\t%jd\t%d\n", |
64b58881 KZ |
255 | mnt_fs_get_source(fs), |
256 | mnt_fs_get_swaptype(fs), | |
257 | mnt_fs_get_size(fs), | |
258 | mnt_fs_get_usedsize(fs), | |
259 | mnt_fs_get_priority(fs)); | |
57a60bf0 | 260 | } |
fd6b7a7f | 261 | |
64b58881 KZ |
262 | mnt_free_iter(itr); |
263 | return 0; | |
fd6b7a7f KZ |
264 | } |
265 | ||
9eeba70e | 266 | static int show_table(struct swapon_ctl *ctl) |
e076b552 SK |
267 | { |
268 | struct libmnt_table *st = get_swaps(); | |
880f09c8 | 269 | struct libmnt_iter *itr = NULL; |
e076b552 | 270 | struct libmnt_fs *fs; |
e5166348 | 271 | int i; |
248a7f70 | 272 | struct libscols_table *table = NULL; |
e076b552 SK |
273 | |
274 | if (!st) | |
275 | return -1; | |
276 | ||
277 | itr = mnt_new_iter(MNT_ITER_FORWARD); | |
278 | if (!itr) | |
279 | err(EXIT_FAILURE, _("failed to initialize libmount iterator")); | |
280 | ||
710ed55d KZ |
281 | scols_init_debug(0); |
282 | ||
0925a9dd | 283 | table = scols_new_table(); |
e5166348 | 284 | if (!table) |
780ce22c | 285 | err(EXIT_FAILURE, _("failed to allocate output table")); |
e5166348 | 286 | |
9eeba70e SK |
287 | scols_table_enable_raw(table, ctl->raw); |
288 | scols_table_enable_noheadings(table, ctl->no_heading); | |
e076b552 | 289 | |
9eeba70e SK |
290 | for (i = 0; i < ctl->ncolumns; i++) { |
291 | struct colinfo *col = get_column_info(ctl, i); | |
e076b552 | 292 | |
e5166348 | 293 | if (!scols_table_new_column(table, col->name, col->whint, col->flags)) |
780ce22c | 294 | err(EXIT_FAILURE, _("failed to allocate output column")); |
e076b552 SK |
295 | } |
296 | ||
297 | while (mnt_table_next_fs(st, itr, &fs) == 0) | |
9eeba70e | 298 | add_scols_line(ctl, table, fs); |
e076b552 | 299 | |
248a7f70 | 300 | scols_print_table(table); |
248a7f70 | 301 | scols_unref_table(table); |
e5166348 KZ |
302 | mnt_free_iter(itr); |
303 | return 0; | |
e076b552 SK |
304 | } |
305 | ||
6274b987 | 306 | /* calls mkswap */ |
6c44094a | 307 | static int swap_reinitialize(struct swap_device *dev) |
b5b2c388 | 308 | { |
6274b987 KC |
309 | pid_t pid; |
310 | int status, ret; | |
2dd3ba2c | 311 | char const *cmd[7]; |
6274b987 KC |
312 | int idx=0; |
313 | ||
6c44094a KZ |
314 | assert(dev); |
315 | assert(dev->path); | |
316 | ||
317 | warnx(_("%s: reinitializing the swap."), dev->path); | |
0d761944 | 318 | |
a125123f | 319 | switch ((pid=fork())) { |
6274b987 | 320 | case -1: /* fork error */ |
d51d05d3 | 321 | warn(_("fork failed")); |
6274b987 KC |
322 | return -1; |
323 | ||
324 | case 0: /* child */ | |
eac478dc KZ |
325 | if (geteuid() != getuid()) { |
326 | /* in case someone uses swapon as setuid binary */ | |
327 | if (setgid(getgid()) < 0) | |
328 | exit(EXIT_FAILURE); | |
329 | if (setuid(getuid()) < 0) | |
330 | exit(EXIT_FAILURE); | |
331 | } | |
332 | ||
f1bc5996 | 333 | cmd[idx++] = "mkswap"; |
6c44094a | 334 | if (dev->label) { |
6274b987 | 335 | cmd[idx++] = "-L"; |
6c44094a | 336 | cmd[idx++] = dev->label; |
6274b987 | 337 | } |
6c44094a | 338 | if (dev->uuid) { |
6274b987 | 339 | cmd[idx++] = "-U"; |
6c44094a | 340 | cmd[idx++] = dev->uuid; |
6274b987 | 341 | } |
6c44094a | 342 | cmd[idx++] = dev->path; |
6274b987 | 343 | cmd[idx++] = NULL; |
2dd3ba2c | 344 | execvp(cmd[0], (char * const *) cmd); |
07ff972e | 345 | err(EXIT_FAILURE, _("failed to execute %s"), cmd[0]); |
6274b987 KC |
346 | |
347 | default: /* parent */ | |
348 | do { | |
048811c9 KZ |
349 | ret = waitpid(pid, &status, 0); |
350 | } while (ret == -1 && errno == EINTR); | |
351 | ||
352 | if (ret < 0) { | |
353 | warn(_("waitpid failed")); | |
354 | return -1; | |
355 | } | |
6274b987 KC |
356 | |
357 | /* mkswap returns: 0=suss, 1=error */ | |
358 | if (WIFEXITED(status) && WEXITSTATUS(status)==0) | |
359 | return 0; /* ok */ | |
f8ff4ebb | 360 | break; |
6274b987 KC |
361 | } |
362 | return -1; /* error */ | |
363 | } | |
364 | ||
6c44094a KZ |
365 | /* Replaces unwanted SWSUSPEND signature with swap signature */ |
366 | static int swap_rewrite_signature(const struct swap_device *dev) | |
617d8a3b KZ |
367 | { |
368 | int fd, rc = -1; | |
369 | ||
6c44094a KZ |
370 | assert(dev); |
371 | assert(dev->path); | |
372 | assert(dev->pagesize); | |
373 | ||
374 | fd = open(dev->path, O_WRONLY); | |
617d8a3b | 375 | if (fd == -1) { |
6c44094a | 376 | warn(_("cannot open %s"), dev->path); |
617d8a3b KZ |
377 | return -1; |
378 | } | |
379 | ||
6c44094a KZ |
380 | if (lseek(fd, dev->pagesize - SWAP_SIGNATURE_SZ, SEEK_SET) < 0) { |
381 | warn(_("%s: lseek failed"), dev->path); | |
617d8a3b | 382 | goto err; |
5dd53f43 | 383 | } |
617d8a3b KZ |
384 | |
385 | if (write(fd, (void *) SWAP_SIGNATURE, | |
5dd53f43 | 386 | SWAP_SIGNATURE_SZ) != SWAP_SIGNATURE_SZ) { |
6c44094a | 387 | warn(_("%s: write signature failed"), dev->path); |
617d8a3b | 388 | goto err; |
5dd53f43 | 389 | } |
617d8a3b KZ |
390 | |
391 | rc = 0; | |
392 | err: | |
14699715 | 393 | if (close_fd(fd) != 0) { |
6c44094a | 394 | warn(_("write failed: %s"), dev->path); |
14699715 SK |
395 | rc = -1; |
396 | } | |
617d8a3b KZ |
397 | return rc; |
398 | } | |
399 | ||
d335c9bd | 400 | static int swap_detect_signature(const char *buf, int *sig) |
3399a218 | 401 | { |
6c44094a KZ |
402 | assert(buf); |
403 | assert(sig); | |
404 | ||
eb397d19 | 405 | if (memcmp(buf, SWAP_SIGNATURE, SWAP_SIGNATURE_SZ) == 0) |
e8be80dd KZ |
406 | *sig = SIG_SWAPSPACE; |
407 | ||
408 | else if (memcmp(buf, "S1SUSPEND", 9) == 0 || | |
409 | memcmp(buf, "S2SUSPEND", 9) == 0 || | |
410 | memcmp(buf, "ULSUSPEND", 9) == 0 || | |
5a16af58 KZ |
411 | memcmp(buf, "\xed\xc3\x02\xe9\x98\x56\xe5\x0c", 8) == 0 || |
412 | memcmp(buf, "LINHIB0001", 10) == 0) | |
e8be80dd KZ |
413 | *sig = SIG_SWSUSPEND; |
414 | else | |
415 | return 0; | |
3399a218 | 416 | |
e8be80dd | 417 | return 1; |
3399a218 MK |
418 | } |
419 | ||
6c44094a | 420 | static char *swap_get_header(int fd, int *sig, unsigned int *pagesize) |
3399a218 | 421 | { |
3399a218 | 422 | char *buf; |
e8be80dd KZ |
423 | ssize_t datasz; |
424 | unsigned int page; | |
3399a218 | 425 | |
6c44094a KZ |
426 | assert(sig); |
427 | assert(pagesize); | |
428 | ||
429 | *pagesize = 0; | |
e8be80dd | 430 | *sig = 0; |
3399a218 | 431 | |
bfbb12d2 | 432 | buf = xmalloc(MAX_PAGESIZE); |
3399a218 MK |
433 | |
434 | datasz = read(fd, buf, MAX_PAGESIZE); | |
e8be80dd KZ |
435 | if (datasz == (ssize_t) -1) |
436 | goto err; | |
3399a218 MK |
437 | |
438 | for (page = 0x1000; page <= MAX_PAGESIZE; page <<= 1) { | |
439 | /* skip 32k pagesize since this does not seem to | |
440 | * be supported */ | |
441 | if (page == 0x8000) | |
442 | continue; | |
443 | /* the smallest swap area is PAGE_SIZE*10, it means | |
444 | * 40k, that's less than MAX_PAGESIZE */ | |
24f010e8 | 445 | if (datasz < 0 || (size_t) datasz < (page - SWAP_SIGNATURE_SZ)) |
3399a218 | 446 | break; |
617d8a3b | 447 | if (swap_detect_signature(buf + page - SWAP_SIGNATURE_SZ, sig)) { |
6c44094a | 448 | *pagesize = page; |
3399a218 MK |
449 | break; |
450 | } | |
451 | } | |
452 | ||
6c44094a | 453 | if (*pagesize) |
e8be80dd | 454 | return buf; |
3399a218 | 455 | err: |
e8be80dd KZ |
456 | free(buf); |
457 | return NULL; | |
458 | } | |
459 | ||
460 | /* returns real size of swap space */ | |
6c44094a KZ |
461 | static unsigned long long swap_get_size(const struct swap_device *dev, |
462 | const char *hdr) | |
e8be80dd KZ |
463 | { |
464 | unsigned int last_page = 0; | |
8a101b14 | 465 | const unsigned int swap_version = SWAP_VERSION; |
e8be80dd KZ |
466 | struct swap_header_v1_2 *s; |
467 | ||
6c44094a KZ |
468 | assert(dev); |
469 | assert(dev->pagesize > 0); | |
470 | ||
e8be80dd | 471 | s = (struct swap_header_v1_2 *) hdr; |
6c44094a KZ |
472 | |
473 | if (s->version == swap_version) | |
e8be80dd | 474 | last_page = s->last_page; |
6c44094a | 475 | else if (swab32(s->version) == swap_version) |
e8be80dd | 476 | last_page = swab32(s->last_page); |
6c44094a KZ |
477 | |
478 | return ((unsigned long long) last_page + 1) * dev->pagesize; | |
3399a218 MK |
479 | } |
480 | ||
6c44094a | 481 | static void swap_get_info(struct swap_device *dev, const char *hdr) |
b5b2c388 KZ |
482 | { |
483 | struct swap_header_v1_2 *s = (struct swap_header_v1_2 *) hdr; | |
484 | ||
6c44094a KZ |
485 | assert(dev); |
486 | ||
a125123f | 487 | if (s && *s->volume_name) |
6c44094a | 488 | dev->label = xstrdup(s->volume_name); |
b5b2c388 | 489 | |
a125123f | 490 | if (s && *s->uuid) { |
b5b2c388 | 491 | const unsigned char *u = s->uuid; |
b443c177 | 492 | char str[UUID_STR_LEN]; |
b5b2c388 KZ |
493 | |
494 | snprintf(str, sizeof(str), | |
495 | "%02x%02x%02x%02x-" | |
496 | "%02x%02x-%02x%02x-" | |
497 | "%02x%02x-%02x%02x%02x%02x%02x%02x", | |
498 | u[0], u[1], u[2], u[3], | |
499 | u[4], u[5], u[6], u[7], | |
500 | u[8], u[9], u[10], u[11], u[12], u[13], u[14], u[15]); | |
6c44094a | 501 | dev->uuid = xstrdup(str); |
b5b2c388 KZ |
502 | } |
503 | } | |
504 | ||
6c44094a | 505 | static int swapon_checks(const struct swapon_ctl *ctl, struct swap_device *dev) |
05c79b78 | 506 | { |
63cccae4 | 507 | struct stat st; |
1b504263 | 508 | int fd, sig; |
05c79b78 | 509 | char *hdr = NULL; |
e8be80dd | 510 | unsigned long long devsize = 0; |
cd04b26b | 511 | int permMask; |
63cccae4 | 512 | |
6c44094a KZ |
513 | assert(ctl); |
514 | assert(dev); | |
515 | assert(dev->path); | |
516 | ||
517 | fd = open(dev->path, O_RDONLY); | |
8df370d3 | 518 | if (fd == -1) { |
6c44094a | 519 | warn(_("cannot open %s"), dev->path); |
8df370d3 SK |
520 | goto err; |
521 | } | |
522 | ||
523 | if (fstat(fd, &st) < 0) { | |
6c44094a | 524 | warn(_("stat of %s failed"), dev->path); |
05c79b78 | 525 | goto err; |
63cccae4 KZ |
526 | } |
527 | ||
cd04b26b KZ |
528 | permMask = S_ISBLK(st.st_mode) ? 07007 : 07077; |
529 | if ((st.st_mode & permMask) != 0) | |
530 | warnx(_("%s: insecure permissions %04o, %04o suggested."), | |
6c44094a | 531 | dev->path, st.st_mode & 07777, |
88530f9f | 532 | ~permMask & 0666); |
306c1df2 | 533 | |
cd04b26b KZ |
534 | if (S_ISREG(st.st_mode) && st.st_uid != 0) |
535 | warnx(_("%s: insecure file owner %d, 0 (root) suggested."), | |
6c44094a | 536 | dev->path, st.st_uid); |
88530f9f KZ |
537 | |
538 | /* test for holes by LBT */ | |
539 | if (S_ISREG(st.st_mode)) { | |
540 | if (st.st_blocks * 512 < st.st_size) { | |
d51d05d3 | 541 | warnx(_("%s: skipping - it appears to have holes."), |
6c44094a | 542 | dev->path); |
05c79b78 | 543 | goto err; |
88530f9f | 544 | } |
e8be80dd KZ |
545 | devsize = st.st_size; |
546 | } | |
547 | ||
05c79b78 | 548 | if (S_ISBLK(st.st_mode) && blkdev_get_size(fd, &devsize)) { |
6c44094a | 549 | warnx(_("%s: get size failed"), dev->path); |
05c79b78 | 550 | goto err; |
e8be80dd KZ |
551 | } |
552 | ||
6c44094a | 553 | hdr = swap_get_header(fd, &sig, &dev->pagesize); |
e8be80dd | 554 | if (!hdr) { |
6c44094a | 555 | warnx(_("%s: read swap header failed"), dev->path); |
05c79b78 | 556 | goto err; |
88530f9f KZ |
557 | } |
558 | ||
6c44094a KZ |
559 | if (ctl->verbose) |
560 | warnx(_("%s: found signature [pagesize=%d, signature=%s]"), | |
561 | dev->path, | |
562 | dev->pagesize, | |
563 | sig == SIG_SWAPSPACE ? "swap" : | |
564 | sig == SIG_SWSUSPEND ? "suspend" : "unknown"); | |
565 | ||
566 | if (sig == SIG_SWAPSPACE && dev->pagesize) { | |
567 | unsigned long long swapsize = swap_get_size(dev, hdr); | |
24f010e8 KZ |
568 | int syspg = getpagesize(); |
569 | ||
9eeba70e | 570 | if (ctl->verbose) |
e6b0611b | 571 | warnx(_("%s: pagesize=%d, swapsize=%llu, devsize=%llu"), |
6c44094a | 572 | dev->path, dev->pagesize, swapsize, devsize); |
e8be80dd KZ |
573 | |
574 | if (swapsize > devsize) { | |
9eeba70e | 575 | if (ctl->verbose) |
d51d05d3 KZ |
576 | warnx(_("%s: last_page 0x%08llx is larger" |
577 | " than actual size of swapspace"), | |
6c44094a KZ |
578 | dev->path, swapsize); |
579 | ||
580 | } else if (syspg < 0 || (unsigned int) syspg != dev->pagesize) { | |
9eeba70e | 581 | if (ctl->fix_page_size) { |
b5b2c388 KZ |
582 | int rc; |
583 | ||
6c44094a | 584 | swap_get_info(dev, hdr); |
b5b2c388 | 585 | |
93bfcc94 | 586 | warnx(_("%s: swap format pagesize does not match."), |
6c44094a KZ |
587 | dev->path); |
588 | rc = swap_reinitialize(dev); | |
b5b2c388 | 589 | if (rc < 0) |
0d761944 KZ |
590 | goto err; |
591 | } else | |
93bfcc94 KZ |
592 | warnx(_("%s: swap format pagesize does not match. " |
593 | "(Use --fixpgsz to reinitialize it.)"), | |
6c44094a | 594 | dev->path); |
e8be80dd KZ |
595 | } |
596 | } else if (sig == SIG_SWSUSPEND) { | |
597 | /* We have to reinitialize swap with old (=useless) software suspend | |
598 | * data. The problem is that if we don't do it, then we get data | |
599 | * corruption the next time an attempt at unsuspending is made. | |
600 | */ | |
d51d05d3 | 601 | warnx(_("%s: software suspend data detected. " |
617d8a3b | 602 | "Rewriting the swap signature."), |
6c44094a KZ |
603 | dev->path); |
604 | if (swap_rewrite_signature(dev) < 0) | |
05c79b78 | 605 | goto err; |
6274b987 KC |
606 | } |
607 | ||
05c79b78 KZ |
608 | free(hdr); |
609 | close(fd); | |
610 | return 0; | |
05c79b78 KZ |
611 | err: |
612 | if (fd != -1) | |
613 | close(fd); | |
614 | free(hdr); | |
615 | return -1; | |
616 | } | |
63cccae4 | 617 | |
6c44094a KZ |
618 | static int do_swapon(const struct swapon_ctl *ctl, |
619 | const struct swap_prop *prop, | |
620 | const char *spec, | |
621 | int canonic) | |
d335c9bd | 622 | { |
6c44094a | 623 | struct swap_device dev = { .path = NULL }; |
05c79b78 | 624 | int status; |
05c79b78 | 625 | int flags = 0; |
6c44094a | 626 | int priority; |
63cccae4 | 627 | |
6c44094a KZ |
628 | assert(ctl); |
629 | assert(prop); | |
05c79b78 | 630 | |
a125123f | 631 | if (!canonic) { |
6c44094a KZ |
632 | dev.path = mnt_resolve_spec(spec, mntcache); |
633 | if (!dev.path) | |
a125123f | 634 | return cannot_find(spec); |
2dd3ba2c | 635 | } else |
6c44094a | 636 | dev.path = spec; |
ffa63a3d | 637 | |
6c44094a KZ |
638 | priority = prop->priority; |
639 | ||
640 | if (swapon_checks(ctl, &dev)) | |
05c79b78 KZ |
641 | return -1; |
642 | ||
643 | #ifdef SWAP_FLAG_PREFER | |
6c44094a KZ |
644 | if (priority >= 0) { |
645 | if (priority > SWAP_FLAG_PRIO_MASK) | |
646 | priority = SWAP_FLAG_PRIO_MASK; | |
647 | ||
05c79b78 | 648 | flags = SWAP_FLAG_PREFER |
6c44094a | 649 | | ((priority & SWAP_FLAG_PRIO_MASK) |
05c79b78 KZ |
650 | << SWAP_FLAG_PRIO_SHIFT); |
651 | } | |
652 | #endif | |
d6387c98 RA |
653 | /* |
654 | * Validate the discard flags passed and set them | |
655 | * accordingly before calling sys_swapon. | |
656 | */ | |
6c44094a | 657 | if (prop->discard && !(prop->discard & ~SWAP_FLAGS_DISCARD_VALID)) { |
d6387c98 RA |
658 | /* |
659 | * If we get here with both discard policy flags set, | |
660 | * we just need to tell the kernel to enable discards | |
661 | * and it will do correctly, just as we expect. | |
662 | */ | |
6c44094a KZ |
663 | if ((prop->discard & SWAP_FLAG_DISCARD_ONCE) && |
664 | (prop->discard & SWAP_FLAG_DISCARD_PAGES)) | |
d6387c98 RA |
665 | flags |= SWAP_FLAG_DISCARD; |
666 | else | |
6c44094a | 667 | flags |= prop->discard; |
d6387c98 | 668 | } |
c2301380 | 669 | |
6c44094a KZ |
670 | if (ctl->verbose) |
671 | printf(_("swapon %s\n"), dev.path); | |
672 | ||
673 | status = swapon(dev.path, flags); | |
d51d05d3 | 674 | if (status < 0) |
6c44094a | 675 | warn(_("%s: swapon failed"), dev.path); |
63cccae4 KZ |
676 | |
677 | return status; | |
678 | } | |
679 | ||
a125123f | 680 | static int swapon_by_label(struct swapon_ctl *ctl, const char *label) |
d335c9bd | 681 | { |
a125123f | 682 | char *device = mnt_resolve_tag("LABEL", label, mntcache); |
6c44094a | 683 | return device ? do_swapon(ctl, &ctl->props, device, TRUE) : cannot_find(label); |
756bfd01 KZ |
684 | } |
685 | ||
a125123f | 686 | static int swapon_by_uuid(struct swapon_ctl *ctl, const char *uuid) |
d335c9bd | 687 | { |
a125123f | 688 | char *device = mnt_resolve_tag("UUID", uuid, mntcache); |
6c44094a | 689 | return device ? do_swapon(ctl, &ctl->props, device, TRUE) : cannot_find(uuid); |
756bfd01 KZ |
690 | } |
691 | ||
e07fdac4 | 692 | /* -o <options> or fstab */ |
6c44094a | 693 | static int parse_options(struct swap_prop *props, const char *options) |
e07fdac4 KZ |
694 | { |
695 | char *arg = NULL; | |
07332bfa | 696 | size_t argsz = 0; |
e07fdac4 | 697 | |
6c44094a KZ |
698 | assert(props); |
699 | assert(options); | |
e07fdac4 | 700 | |
87918040 | 701 | if (mnt_optstr_get_option(options, "nofail", NULL, NULL) == 0) |
6c44094a | 702 | props->no_fail = 1; |
e07fdac4 | 703 | |
07332bfa | 704 | if (mnt_optstr_get_option(options, "discard", &arg, &argsz) == 0) { |
6c44094a | 705 | props->discard |= SWAP_FLAG_DISCARD; |
e07fdac4 KZ |
706 | |
707 | if (arg) { | |
708 | /* only single-time discards are wanted */ | |
07332bfa | 709 | if (strncmp(arg, "once", argsz) == 0) |
6c44094a | 710 | props->discard |= SWAP_FLAG_DISCARD_ONCE; |
e07fdac4 KZ |
711 | |
712 | /* do discard for every released swap page */ | |
07332bfa | 713 | if (strncmp(arg, "pages", argsz) == 0) |
6c44094a KZ |
714 | props->discard |= SWAP_FLAG_DISCARD_PAGES; |
715 | } | |
e07fdac4 KZ |
716 | } |
717 | ||
718 | arg = NULL; | |
6c44094a KZ |
719 | if (mnt_optstr_get_option(options, "pri", &arg, NULL) == 0 && arg) |
720 | props->priority = atoi(arg); | |
e07fdac4 KZ |
721 | |
722 | return 0; | |
723 | } | |
724 | ||
725 | ||
9eeba70e | 726 | static int swapon_all(struct swapon_ctl *ctl) |
d335c9bd | 727 | { |
5072b90a KZ |
728 | struct libmnt_table *tb = get_fstab(); |
729 | struct libmnt_iter *itr; | |
730 | struct libmnt_fs *fs; | |
63cccae4 | 731 | int status = 0; |
63cccae4 | 732 | |
5072b90a | 733 | if (!tb) |
d335c9bd | 734 | err(EXIT_FAILURE, _("failed to parse %s"), mnt_get_fstab_path()); |
756bfd01 | 735 | |
5072b90a KZ |
736 | itr = mnt_new_iter(MNT_ITER_FORWARD); |
737 | if (!itr) | |
738 | err(EXIT_FAILURE, _("failed to initialize libmount iterator")); | |
756bfd01 | 739 | |
5072b90a KZ |
740 | while (mnt_table_find_next_fs(tb, itr, match_swap, NULL, &fs) == 0) { |
741 | /* defaults */ | |
2dd3ba2c | 742 | const char *opts; |
a125123f | 743 | const char *device; |
6c44094a | 744 | struct swap_prop prop; /* per device setting */ |
1b414d89 | 745 | |
6c44094a KZ |
746 | if (mnt_fs_get_option(fs, "noauto", NULL, NULL) == 0) { |
747 | if (ctl->verbose) | |
748 | warnx(_("%s: noauto option -- ignored"), mnt_fs_get_source(fs)); | |
1b414d89 | 749 | continue; |
6c44094a KZ |
750 | } |
751 | ||
752 | /* default setting */ | |
753 | prop = ctl->props; | |
e07fdac4 | 754 | |
6c44094a | 755 | /* overwrite default by setting from fstab */ |
e07fdac4 KZ |
756 | opts = mnt_fs_get_options(fs); |
757 | if (opts) | |
6c44094a | 758 | parse_options(&prop, opts); |
5072b90a | 759 | |
6c44094a | 760 | /* convert LABEL=, UUID= etc. from fstab to device name */ |
a125123f KZ |
761 | device = mnt_resolve_spec(mnt_fs_get_source(fs), mntcache); |
762 | if (!device) { | |
6c44094a | 763 | if (!prop.no_fail) |
5072b90a | 764 | status |= cannot_find(mnt_fs_get_source(fs)); |
756bfd01 | 765 | continue; |
1b414d89 | 766 | } |
756bfd01 | 767 | |
6c44094a KZ |
768 | if (is_active_swap(device)) { |
769 | if (ctl->verbose) | |
770 | warnx(_("%s: already active -- ignored"), device); | |
771 | continue; | |
772 | } | |
773 | ||
774 | if (prop.no_fail && access(device, R_OK) != 0) { | |
775 | if (ctl->verbose) | |
9e930041 | 776 | warnx(_("%s: inaccessible -- ignored"), device); |
6c44094a KZ |
777 | continue; |
778 | } | |
779 | ||
780 | /* swapon */ | |
781 | status |= do_swapon(ctl, &prop, device, TRUE); | |
756bfd01 | 782 | } |
756bfd01 | 783 | |
5072b90a | 784 | mnt_free_iter(itr); |
756bfd01 KZ |
785 | return status; |
786 | } | |
787 | ||
e07fdac4 | 788 | |
6e1eda6f | 789 | static void __attribute__((__noreturn__)) usage(void) |
8b0d5341 | 790 | { |
6e1eda6f | 791 | FILE *out = stdout; |
e09bd8d0 | 792 | size_t i; |
6e1eda6f | 793 | |
8b0d5341 | 794 | fputs(USAGE_HEADER, out); |
8b0d5341 KZ |
795 | fprintf(out, _(" %s [options] [<spec>]\n"), program_invocation_short_name); |
796 | ||
451dbcfa BS |
797 | fputs(USAGE_SEPARATOR, out); |
798 | fputs(_("Enable devices and files for paging and swapping.\n"), out); | |
799 | ||
8b0d5341 | 800 | fputs(USAGE_OPTIONS, out); |
6ee8e194 BS |
801 | fputs(_(" -a, --all enable all swaps from /etc/fstab\n"), out); |
802 | fputs(_(" -d, --discard[=<policy>] enable swap discards, if supported by device\n"), out); | |
803 | fputs(_(" -e, --ifexists silently skip devices that do not exist\n"), out); | |
804 | fputs(_(" -f, --fixpgsz reinitialize the swap space if necessary\n"), out); | |
805 | fputs(_(" -o, --options <list> comma-separated list of swap options\n"), out); | |
806 | fputs(_(" -p, --priority <prio> specify the priority of the swap device\n"), out); | |
807 | fputs(_(" -s, --summary display summary about used swap devices (DEPRECATED)\n"), out); | |
808 | fputs(_(" --show[=<columns>] display summary in definable table\n"), out); | |
809 | fputs(_(" --noheadings don't print table heading (with --show)\n"), out); | |
810 | fputs(_(" --raw use the raw output format (with --show)\n"), out); | |
811 | fputs(_(" --bytes display swap size in bytes in --show output\n"), out); | |
812 | fputs(_(" -v, --verbose verbose mode\n"), out); | |
8b0d5341 KZ |
813 | |
814 | fputs(USAGE_SEPARATOR, out); | |
f45f3ec3 | 815 | printf(USAGE_HELP_OPTIONS(26)); |
8b0d5341 KZ |
816 | |
817 | fputs(_("\nThe <spec> parameter:\n" \ | |
9f9d0f21 KZ |
818 | " -L <label> synonym for LABEL=<label>\n" |
819 | " -U <uuid> synonym for UUID=<uuid>\n" | |
820 | " LABEL=<label> specifies device by swap area label\n" | |
821 | " UUID=<uuid> specifies device by swap area UUID\n" | |
822 | " PARTLABEL=<label> specifies device by partition label\n" | |
823 | " PARTUUID=<uuid> specifies device by partition UUID\n" | |
824 | " <device> name of device to be used\n" | |
8b0d5341 KZ |
825 | " <file> name of file to be used\n"), out); |
826 | ||
d6387c98 | 827 | fputs(_("\nAvailable discard policy types (for --discard):\n" |
54fefa07 BS |
828 | " once : only single-time area discards are issued\n" |
829 | " pages : freed pages are discarded before they are reused\n" | |
830 | "If no policy is selected, both discard types are enabled (default).\n"), out); | |
d6387c98 | 831 | |
c3a4cfc5 | 832 | fputs(USAGE_COLUMNS, out); |
a560a348 | 833 | for (i = 0; i < ARRAY_SIZE(infos); i++) |
a12124ce | 834 | fprintf(out, " %-5s %s\n", infos[i].name, _(infos[i].help)); |
e076b552 | 835 | |
f45f3ec3 | 836 | printf(USAGE_MAN_TAIL("swapon(8)")); |
6e1eda6f | 837 | exit(EXIT_SUCCESS); |
8b0d5341 KZ |
838 | } |
839 | ||
d9f07b10 KZ |
840 | int main(int argc, char *argv[]) |
841 | { | |
8b0d5341 | 842 | int status = 0, c; |
0b0c231f | 843 | size_t i; |
6c44094a | 844 | char *options = NULL; |
756bfd01 | 845 | |
e076b552 | 846 | enum { |
e07fdac4 | 847 | BYTES_OPTION = CHAR_MAX + 1, |
7ae8b469 | 848 | NOHEADINGS_OPTION, |
e07fdac4 KZ |
849 | RAW_OPTION, |
850 | SHOW_OPTION | |
e076b552 SK |
851 | }; |
852 | ||
8b0d5341 | 853 | static const struct option long_opts[] = { |
87918040 SK |
854 | { "priority", required_argument, NULL, 'p' }, |
855 | { "discard", optional_argument, NULL, 'd' }, | |
856 | { "ifexists", no_argument, NULL, 'e' }, | |
857 | { "options", optional_argument, NULL, 'o' }, | |
858 | { "summary", no_argument, NULL, 's' }, | |
859 | { "fixpgsz", no_argument, NULL, 'f' }, | |
860 | { "all", no_argument, NULL, 'a' }, | |
861 | { "help", no_argument, NULL, 'h' }, | |
862 | { "verbose", no_argument, NULL, 'v' }, | |
863 | { "version", no_argument, NULL, 'V' }, | |
864 | { "show", optional_argument, NULL, SHOW_OPTION }, | |
865 | { "noheadings", no_argument, NULL, NOHEADINGS_OPTION }, | |
866 | { "raw", no_argument, NULL, RAW_OPTION }, | |
867 | { "bytes", no_argument, NULL, BYTES_OPTION }, | |
868 | { NULL, 0, NULL, 0 } | |
8b0d5341 KZ |
869 | }; |
870 | ||
a7349ee3 | 871 | static const ul_excl_t excl[] = { /* rows and cols in ASCII order */ |
e07fdac4 KZ |
872 | { 'a','o','s', SHOW_OPTION }, |
873 | { 'a','o', BYTES_OPTION }, | |
874 | { 'a','o', NOHEADINGS_OPTION }, | |
875 | { 'a','o', RAW_OPTION }, | |
876 | { 0 } | |
877 | }; | |
878 | int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; | |
879 | ||
6c44094a | 880 | struct swapon_ctl ctl; |
9eeba70e | 881 | |
d9f07b10 KZ |
882 | setlocale(LC_ALL, ""); |
883 | bindtextdomain(PACKAGE, LOCALEDIR); | |
884 | textdomain(PACKAGE); | |
885 | atexit(close_stdout); | |
886 | ||
6c44094a KZ |
887 | memset(&ctl, 0, sizeof(struct swapon_ctl)); |
888 | ctl.props.priority = -1; | |
889 | ||
d9f07b10 KZ |
890 | mnt_init_debug(0); |
891 | mntcache = mnt_new_cache(); | |
892 | ||
e07fdac4 | 893 | while ((c = getopt_long(argc, argv, "ahd::efo:p:svVL:U:", |
8b0d5341 | 894 | long_opts, NULL)) != -1) { |
e07fdac4 KZ |
895 | |
896 | err_exclusive_options(c, long_opts, excl, excl_st); | |
897 | ||
63cccae4 KZ |
898 | switch (c) { |
899 | case 'a': /* all */ | |
9eeba70e | 900 | ctl.all = 1; |
63cccae4 KZ |
901 | break; |
902 | case 'h': /* help */ | |
6e1eda6f | 903 | usage(); |
63cccae4 | 904 | break; |
e07fdac4 | 905 | case 'o': |
6c44094a | 906 | options = optarg; |
e07fdac4 | 907 | break; |
63cccae4 | 908 | case 'p': /* priority */ |
6c44094a | 909 | ctl.props.priority = strtos16_or_err(optarg, |
9db6a749 | 910 | _("failed to parse priority")); |
63cccae4 | 911 | break; |
756bfd01 | 912 | case 'L': |
0b0c231f | 913 | add_label(optarg); |
756bfd01 KZ |
914 | break; |
915 | case 'U': | |
0b0c231f | 916 | add_uuid(optarg); |
756bfd01 | 917 | break; |
c2301380 | 918 | case 'd': |
6c44094a | 919 | ctl.props.discard |= SWAP_FLAG_DISCARD; |
d6387c98 RA |
920 | if (optarg) { |
921 | if (*optarg == '=') | |
922 | optarg++; | |
923 | ||
924 | if (strcmp(optarg, "once") == 0) | |
6c44094a | 925 | ctl.props.discard |= SWAP_FLAG_DISCARD_ONCE; |
d6387c98 | 926 | else if (strcmp(optarg, "pages") == 0) |
6c44094a | 927 | ctl.props.discard |= SWAP_FLAG_DISCARD_PAGES; |
d6387c98 RA |
928 | else |
929 | errx(EXIT_FAILURE, _("unsupported discard policy: %s"), optarg); | |
930 | } | |
c2301380 | 931 | break; |
95f1bdee | 932 | case 'e': /* ifexists */ |
6c44094a | 933 | ctl.props.no_fail = 1; |
95f1bdee | 934 | break; |
0d761944 | 935 | case 'f': |
9eeba70e | 936 | ctl.fix_page_size = 1; |
0d761944 | 937 | break; |
63cccae4 KZ |
938 | case 's': /* status report */ |
939 | status = display_summary(); | |
8b0d5341 | 940 | return status; |
63cccae4 | 941 | case 'v': /* be chatty */ |
9eeba70e | 942 | ctl.verbose = 1; |
63cccae4 | 943 | break; |
e076b552 SK |
944 | case SHOW_OPTION: |
945 | if (optarg) { | |
9eeba70e SK |
946 | ctl.ncolumns = string_to_idarray(optarg, |
947 | ctl.columns, | |
948 | ARRAY_SIZE(ctl.columns), | |
e076b552 | 949 | column_name_to_id); |
9eeba70e | 950 | if (ctl.ncolumns < 0) |
e076b552 SK |
951 | return EXIT_FAILURE; |
952 | } | |
9eeba70e | 953 | ctl.show = 1; |
e076b552 SK |
954 | break; |
955 | case NOHEADINGS_OPTION: | |
9eeba70e | 956 | ctl.no_heading = 1; |
e076b552 SK |
957 | break; |
958 | case RAW_OPTION: | |
9eeba70e | 959 | ctl.raw = 1; |
e076b552 | 960 | break; |
7ae8b469 | 961 | case BYTES_OPTION: |
9eeba70e | 962 | ctl.bytes = 1; |
7ae8b469 | 963 | break; |
63cccae4 | 964 | case 'V': /* version */ |
d9f07b10 KZ |
965 | printf(UTIL_LINUX_VERSION); |
966 | return EXIT_SUCCESS; | |
63cccae4 KZ |
967 | case 0: |
968 | break; | |
63cccae4 | 969 | default: |
677ec86c | 970 | errtryhelp(EXIT_FAILURE); |
63cccae4 KZ |
971 | } |
972 | } | |
973 | argv += optind; | |
974 | ||
9eeba70e SK |
975 | if (ctl.show || (!ctl.all && !numof_labels() && !numof_uuids() && *argv == NULL)) { |
976 | if (!ctl.ncolumns) { | |
e076b552 | 977 | /* default columns */ |
9eeba70e SK |
978 | ctl.columns[ctl.ncolumns++] = COL_PATH; |
979 | ctl.columns[ctl.ncolumns++] = COL_TYPE; | |
980 | ctl.columns[ctl.ncolumns++] = COL_SIZE; | |
981 | ctl.columns[ctl.ncolumns++] = COL_USED; | |
982 | ctl.columns[ctl.ncolumns++] = COL_PRIO; | |
e076b552 | 983 | } |
9eeba70e | 984 | status = show_table(&ctl); |
e076b552 SK |
985 | return status; |
986 | } | |
987 | ||
6e1eda6f RM |
988 | if (ctl.props.no_fail && !ctl.all) { |
989 | warnx(_("bad usage")); | |
990 | errtryhelp(EXIT_FAILURE); | |
991 | } | |
95f1bdee | 992 | |
9eeba70e SK |
993 | if (ctl.all) |
994 | status |= swapon_all(&ctl); | |
63cccae4 | 995 | |
6c44094a KZ |
996 | if (options) |
997 | parse_options(&ctl.props, options); | |
e07fdac4 | 998 | |
a125123f KZ |
999 | for (i = 0; i < numof_labels(); i++) |
1000 | status |= swapon_by_label(&ctl, get_label(i)); | |
63cccae4 | 1001 | |
a125123f KZ |
1002 | for (i = 0; i < numof_uuids(); i++) |
1003 | status |= swapon_by_uuid(&ctl, get_uuid(i)); | |
1004 | ||
1005 | while (*argv != NULL) | |
6c44094a | 1006 | status |= do_swapon(&ctl, &ctl.props, *argv++, FALSE); |
63cccae4 | 1007 | |
0b0c231f | 1008 | free_tables(); |
6195f9e6 | 1009 | mnt_unref_cache(mntcache); |
d9f07b10 | 1010 | |
64b58881 | 1011 | return status; |
6dbe3af9 | 1012 | } |