1 /* $NetBSD: ccdconfig.c,v 1.2.2.1 1995/11/11 02:43:35 thorpej Exp $ */
4 * Copyright (c) 1995 Jason R. Thorpe.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed for the NetBSD Project
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * $FreeBSD: src/sbin/ccdconfig/ccdconfig.c,v 1.16.2.2 2000/12/11 01:03:25 obrien Exp $
35 * $DragonFly: src/sbin/ccdconfig/ccdconfig.c,v 1.7 2006/10/16 22:02:22 pavalos Exp $
38 #include <sys/param.h>
39 #include <sys/linker.h>
40 #include <sys/disklabel.h>
42 #include <sys/module.h>
55 #include <sys/devicestat.h>
56 #include <sys/ccdvar.h>
58 #include "pathnames.h"
60 static int lineno = 0;
61 static int verbose = 0;
62 static const char *ccdconf = _PATH_CCDCONF;
64 static char *core = NULL;
65 static char *kernel = NULL;
71 { "CCDF_SWAP", CCDF_SWAP },
72 { "CCDF_UNIFORM", CCDF_UNIFORM },
73 { "CCDF_MIRROR", CCDF_MIRROR },
74 { "CCDF_PARITY", CCDF_PARITY },
78 static struct nlist nl[] = {
79 { "_ccd_softc", 0, 0, 0, 0 },
80 #define SYM_CCDSOFTC 0
81 { "_numccd", 0, 0, 0, 0 },
83 { NULL , 0, 0, 0, 0 },
86 #define CCD_CONFIG 0 /* configure a device */
87 #define CCD_CONFIGALL 1 /* configure all devices */
88 #define CCD_UNCONFIG 2 /* unconfigure a device */
89 #define CCD_UNCONFIGALL 3 /* unconfigure all devices */
90 #define CCD_DUMP 4 /* dump a ccd's configuration */
92 static int checkdev(char *);
93 static int do_io(char *, u_long, struct ccd_ioctl *);
94 static int do_single(int, char **, int);
95 static int do_all(int);
96 static int dump_ccd(int, char **);
97 static int getmaxpartitions(void);
98 static int getrawpartition(void);
99 static int flags_to_val(char *);
100 static void print_ccd_info(struct ccd_softc *, kvm_t *);
101 static char *resolve_ccdname(char *);
102 static void usage(void);
105 main(int argc, char **argv)
107 int ch, options = 0, action = CCD_CONFIG;
109 while ((ch = getopt(argc, argv, "cCf:gM:N:uUv")) != -1) {
117 action = CCD_CONFIGALL;
138 action = CCD_UNCONFIG;
143 action = CCD_UNCONFIGALL;
162 * Discard setgid privileges if not the running kernel so that bad
163 * guys can't print interesting stuff from kernel memory.
165 if (core != NULL || kernel != NULL || action != CCD_DUMP) {
170 if (modfind("ccd") < 0) {
171 /* Not present in kernel, try loading it */
172 if (kldload("ccd") < 0 || modfind("ccd") < 0)
173 warn("ccd module not available!");
179 exit(do_single(argc, argv, action));
183 case CCD_UNCONFIGALL:
184 exit(do_all(action));
188 exit(dump_ccd(argc, argv));
196 do_single(int argc, char **argv, int action)
198 struct ccd_ioctl ccio;
199 char *ccd, *cp, *cp2, **disks;
200 int noflags = 0, ileave, flags = 0, j;
203 bzero(&ccio, sizeof(ccio));
206 * If unconfiguring, all arguments are treated as ccds.
208 if (action == CCD_UNCONFIG || action == CCD_UNCONFIGALL) {
209 for (i = 0; argc != 0; ) {
210 cp = *argv++; --argc;
211 if ((ccd = resolve_ccdname(cp)) == NULL) {
212 warnx("invalid ccd name: %s", cp);
216 if (do_io(ccd, CCDIOCCLR, &ccio))
220 printf("%s unconfigured\n", cp);
225 /* Make sure there are enough arguments. */
228 /* Assume that no flags are specified. */
231 if (action == CCD_CONFIGALL) {
232 warnx("%s: bad line: %d", ccdconf, lineno);
239 /* First argument is the ccd to configure. */
240 cp = *argv++; --argc;
241 if ((ccd = resolve_ccdname(cp)) == NULL) {
242 warnx("invalid ccd name: %s", cp);
246 /* Next argument is the interleave factor. */
247 cp = *argv++; --argc;
248 errno = 0; /* to check for ERANGE */
249 ileave = (int)strtol(cp, &cp2, 10);
250 if ((errno == ERANGE) || (ileave < 0) || (*cp2 != '\0')) {
251 warnx("invalid interleave factor: %s", cp);
256 /* Next argument is the ccd configuration flags. */
257 cp = *argv++; --argc;
258 if ((flags = flags_to_val(cp)) < 0) {
259 warnx("invalid flags argument: %s", cp);
264 /* Next is the list of disks to make the ccd from. */
265 disks = malloc(argc * sizeof(char *));
267 warnx("no memory to configure ccd");
270 for (i = 0; argc != 0; ) {
271 cp = *argv++; --argc;
272 if ((j = checkdev(cp)) == 0)
275 warnx("%s: %s", cp, strerror(j));
280 /* Fill in the ccio. */
281 ccio.ccio_disks = disks;
282 ccio.ccio_ndisks = i;
283 ccio.ccio_ileave = ileave;
284 ccio.ccio_flags = flags;
286 if (do_io(ccd, CCDIOCSET, &ccio)) {
292 printf("ccd%d: %d components ", ccio.ccio_unit,
294 for (i = 0; i < ccio.ccio_ndisks; ++i) {
295 if ((cp2 = strrchr(disks[i], '/')) != NULL)
300 i == 0 ? '(' : ' ', cp2,
301 i == ccio.ccio_ndisks - 1 ? ')' : ',');
303 printf(", %lu blocks ", (u_long)ccio.ccio_size);
304 if (ccio.ccio_ileave != 0)
305 printf("interleaved at %d blocks\n", ccio.ccio_ileave);
307 printf("concatenated\n");
318 char line[_POSIX2_LINE_MAX];
326 if ((f = fopen(ccdconf, "r")) == NULL) {
328 warn("fopen: %s", ccdconf);
333 while (fgets(line, sizeof(line), f) != NULL) {
337 if ((cp = strrchr(line, '\n')) != NULL)
340 /* Break up the line and pass it's contents to do_single(). */
343 for (cp = line; (cp = strtok(cp, " \t")) != NULL; cp = NULL) {
346 if ((argv = realloc(argv,
347 sizeof(char *) * ++argc)) == NULL) {
348 warnx("no memory to configure ccds");
353 * If our action is to unconfigure all, then pass
354 * just the first token to do_single() and ignore
355 * the rest. Since this will be encountered on
356 * our first pass through the line, the Right
359 if (action == CCD_UNCONFIGALL) {
360 if (do_single(argc, argv, action))
366 if (do_single(argc, argv, action))
383 if (stat(path, &st) != 0)
386 if (!S_ISBLK(st.st_mode) && !S_ISCHR(st.st_mode))
393 pathtounit(char *path, int *unitp)
398 if (stat(path, &st) != 0)
401 if (!S_ISBLK(st.st_mode) && !S_ISCHR(st.st_mode))
404 if ((maxpartitions = getmaxpartitions()) < 0)
407 *unitp = minor(st.st_rdev) / maxpartitions;
413 resolve_ccdname(char *name)
419 if (name[0] == '/' || name[0] == '.') {
420 /* Assume they gave the correct pathname. */
421 return (strdup(name));
431 if ((rawpart = getrawpartition()) < 0)
433 asprintf(&path, "%s%s%c", _PATH_DEV, name, 'a' + rawpart);
435 asprintf(&path, "%s%s", _PATH_DEV, name);
442 do_io(char *path, u_long cmd, struct ccd_ioctl *cciop)
447 if ((fd = open(path, O_RDWR, 0640)) < 0) {
448 warn("open: %s", path);
452 if (ioctl(fd, cmd, cciop) < 0) {
465 warn("ioctl (%s): %s", cp, path);
472 #define KVM_ABORT(kd, str) { \
474 warnx("%s", (str)); \
475 warnx("%s", kvm_geterr((kd))); \
480 dump_ccd(int argc, char **argv)
482 char errbuf[_POSIX2_LINE_MAX], *ccd, *cp;
483 struct ccd_softc *cs, *kcs;
485 int i, error, numccd, numconfiged = 0;
488 bzero(errbuf, sizeof(errbuf));
490 if ((kd = kvm_openfiles(kernel, core, NULL, O_RDONLY,
492 warnx("can't open kvm: %s", errbuf);
496 if (kvm_nlist(kd, nl))
497 KVM_ABORT(kd, "ccd-related symbols not available");
499 /* Check to see how many ccds are currently configured. */
500 if (kvm_read(kd, nl[SYM_NUMCCD].n_value, (char *)&numccd,
501 sizeof(numccd)) != sizeof(numccd))
502 KVM_ABORT(kd, "can't determine number of configured ccds");
505 printf("ccd driver in kernel, but is uninitialized\n");
509 /* Allocate space for the configuration data. */
510 readsize = numccd * sizeof(struct ccd_softc);
511 if ((cs = malloc(readsize)) == NULL) {
512 warnx("no memory for configuration data");
518 * Read the ccd configuration data from the kernel and dump
521 if (kvm_read(kd, nl[SYM_CCDSOFTC].n_value, (char *)&kcs,
522 sizeof(kcs)) != sizeof(kcs)) {
524 KVM_ABORT(kd, "can't find pointer to configuration data");
526 if (kvm_read(kd, (u_long)kcs, (char *)cs, readsize) != readsize) {
528 KVM_ABORT(kd, "can't read configuration data");
532 for (i = 0; i < numccd; ++i)
533 if (cs[i].sc_flags & CCDF_INITED) {
535 print_ccd_info(&cs[i], kd);
538 if (numconfiged == 0)
539 printf("no concatenated disks configured\n");
542 cp = *argv++; --argc;
543 if ((ccd = resolve_ccdname(cp)) == NULL) {
544 warnx("invalid ccd name: %s", cp);
547 if ((error = pathtounit(ccd, &i)) != 0) {
548 warnx("%s: %s", ccd, strerror(error));
552 warnx("ccd%d not configured", i);
555 if (cs[i].sc_flags & CCDF_INITED)
556 print_ccd_info(&cs[i], kd);
558 printf("ccd%d not configured\n", i);
574 print_ccd_info(struct ccd_softc *cs, kvm_t *kd)
576 static int header_printed = 0;
577 struct ccdcinfo *cip;
579 char path[MAXPATHLEN];
582 if (header_printed == 0 && verbose) {
583 printf("# ccd\t\tileave\tflags\tcompnent devices\n");
587 readsize = cs->sc_nccdisks * sizeof(struct ccdcinfo);
588 if ((cip = malloc(readsize)) == NULL) {
589 warn("ccd%d: can't allocate memory for component info",
593 bzero(cip, readsize);
595 /* Dump out softc information. */
596 printf("ccd%d\t\t%d\t%d\t", cs->sc_unit, cs->sc_ileave,
597 cs->sc_cflags & CCDF_USERMASK);
600 /* Read in the component info. */
601 if (kvm_read(kd, (u_long)cs->sc_cinfo, (char *)cip,
602 readsize) != readsize) {
604 warnx("can't read component info");
605 warnx("%s", kvm_geterr(kd));
609 /* Read component pathname and display component info. */
610 for (i = 0; i < cs->sc_nccdisks; ++i) {
611 if ((unsigned)kvm_read(kd, (u_long)cip[i].ci_path, (char *)path,
612 cip[i].ci_pathlen) != cip[i].ci_pathlen) {
614 warnx("can't read component pathname");
615 warnx("%s", kvm_geterr(kd));
618 printf((i + 1 < cs->sc_nccdisks) ? "%s " : "%s\n", path);
627 getmaxpartitions(void)
629 return (MAXPARTITIONS);
633 getrawpartition(void)
639 flags_to_val(char *flags)
642 int i, tmp, val = ~CCDF_USERMASK;
646 * The most common case is that of NIL flags, so check for
649 if (strcmp("none", flags) == 0 || strcmp("0x0", flags) == 0 ||
650 strcmp("0", flags) == 0)
653 flagslen = strlen(flags);
655 /* Check for values represented by strings. */
656 if ((cp = strdup(flags)) == NULL)
657 err(1, "no memory to parse flags");
659 for (tok = cp; (tok = strtok(tok, ",")) != NULL; tok = NULL) {
660 for (i = 0; flagvaltab[i].fv_flag != NULL; ++i)
661 if (strcmp(tok, flagvaltab[i].fv_flag) == 0)
663 if (flagvaltab[i].fv_flag == NULL) {
667 tmp |= flagvaltab[i].fv_val;
670 /* If we get here, the string was ok. */
677 /* Check for values represented in hex. */
678 if (flagslen > 2 && flags[0] == '0' && flags[1] == 'x') {
679 errno = 0; /* to check for ERANGE */
680 val = (int)strtol(&flags[2], &cp, 16);
681 if ((errno == ERANGE) || (*cp != '\0'))
686 /* Check for values represented in decimal. */
687 errno = 0; /* to check for ERANGE */
688 val = (int)strtol(flags, &cp, 10);
689 if ((errno == ERANGE) || (*cp != '\0'))
693 return (((val & ~CCDF_USERMASK) == 0) ? val : -1);
699 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
700 "usage: ccdconfig [-cv] ccd ileave [flags] dev [...]",
701 " ccdconfig -C [-v] [-f config_file]",
702 " ccdconfig -u [-v] ccd [...]",
703 " ccdconfig -U [-v] [-f config_file]",
704 " ccdconfig -g [-M core] [-N system] [ccd [...]]");
708 /* Local Variables: */
709 /* c-argdecl-indent: 8 */
710 /* c-indent-level: 8 */