/* $NetBSD: ccdconfig.c,v 1.2.2.1 1995/11/11 02:43:35 thorpej Exp $ */ /* * Copyright (c) 1995 Jason R. Thorpe. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project * by Jason R. Thorpe. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "pathnames.h" static int lineno = 0; static int verbose = 0; static const char *ccdconf = _PATH_CCDCONF; struct flagval { const char *fv_flag; int fv_val; } flagvaltab[] = { { "CCDF_UNIFORM", CCDF_UNIFORM }, { "CCDF_MIRROR", CCDF_MIRROR }, { NULL, 0 }, }; #define CCD_CONFIG 0 /* configure a device */ #define CCD_CONFIGALL 1 /* configure all devices */ #define CCD_UNCONFIG 2 /* unconfigure a device */ #define CCD_UNCONFIGALL 3 /* unconfigure all devices */ #define CCD_DUMP 4 /* dump a ccd's configuration */ static int checkdev(char *); static int do_io(int, u_long, struct ccd_ioctl *); static int do_single(int, char **, int); static int do_all(int); static int dump_ccd(int, char **); static int flags_to_val(char *); static void print_ccd_info(struct ccd_s *); static int resolve_ccdname(char *); static void usage(void); int main(int argc, char *argv[]) { int ch, options = 0, action = CCD_CONFIG; while ((ch = getopt(argc, argv, "cCf:guUv")) != -1) { switch (ch) { case 'c': action = CCD_CONFIG; ++options; break; case 'C': action = CCD_CONFIGALL; ++options; break; case 'f': ccdconf = optarg; break; case 'g': action = CCD_DUMP; break; case 'u': action = CCD_UNCONFIG; ++options; break; case 'U': action = CCD_UNCONFIGALL; ++options; break; case 'v': verbose = 1; break; default: usage(); } } argc -= optind; argv += optind; if (options > 1) usage(); if (modfind("ccd") < 0) { /* Not present in kernel, try loading it */ if (kldload("ccd") < 0 || modfind("ccd") < 0) warn("ccd module not available!"); } switch (action) { case CCD_CONFIG: case CCD_UNCONFIG: exit(do_single(argc, argv, action)); /* NOTREACHED */ case CCD_CONFIGALL: case CCD_UNCONFIGALL: exit(do_all(action)); /* NOTREACHED */ case CCD_DUMP: exit(dump_ccd(argc, argv)); /* NOTREACHED */ } /* NOTREACHED */ return (0); } static int do_single(int argc, char **argv, int action) { struct ccd_ioctl ccio; char *cp, *cp2, **disks; int ccd, noflags = 0, i, ileave, flags = 0, j; u_int u; bzero(&ccio, sizeof(ccio)); /* * If unconfiguring, all arguments are treated as ccds. */ if (action == CCD_UNCONFIG || action == CCD_UNCONFIGALL) { for (i = 0; argc != 0; ) { cp = *argv++; --argc; if ((ccd = resolve_ccdname(cp)) < 0) { warnx("invalid ccd name: %s", cp); i = 1; continue; } ccio.ccio_size = ccd; if (do_io(ccd, CCDIOCCLR, &ccio)) i = 1; else if (verbose) printf("%s unconfigured\n", cp); } return (i); } /* Make sure there are enough arguments. */ if (argc < 4) { if (argc == 3) { /* Assume that no flags are specified. */ noflags = 1; } else { if (action == CCD_CONFIGALL) { warnx("%s: bad line: %d", ccdconf, lineno); return (1); } else usage(); } } /* First argument is the ccd to configure. */ cp = *argv++; --argc; if ((ccd = resolve_ccdname(cp)) < 0) { warnx("invalid ccd name: %s", cp); return (1); } /* Next argument is the interleave factor. */ cp = *argv++; --argc; errno = 0; /* to check for ERANGE */ ileave = (int)strtol(cp, &cp2, 10); if ((errno == ERANGE) || (ileave < 0) || (*cp2 != '\0')) { warnx("invalid interleave factor: %s", cp); return (1); } if (noflags == 0) { /* Next argument is the ccd configuration flags. */ cp = *argv++; --argc; if ((flags = flags_to_val(cp)) < 0) { warnx("invalid flags argument: %s", cp); return (1); } } /* Next is the list of disks to make the ccd from. */ disks = malloc(argc * sizeof(char *)); if (disks == NULL) { warnx("no memory to configure ccd"); return (1); } for (i = 0; argc != 0; ) { cp = *argv++; --argc; if ((j = checkdev(cp)) == 0) disks[i++] = cp; else { warnx("%s: %s", cp, strerror(j)); return (1); } } /* Fill in the ccio. */ ccio.ccio_disks = disks; ccio.ccio_ndisks = i; ccio.ccio_ileave = ileave; ccio.ccio_flags = flags; ccio.ccio_size = ccd; if (do_io(ccd, CCDIOCSET, &ccio)) { free(disks); return (1); } if (verbose) { printf("ccd%d: %d components ", ccio.ccio_unit, ccio.ccio_ndisks); for (u = 0; u < ccio.ccio_ndisks; ++u) { if ((cp2 = strrchr(disks[u], '/')) != NULL) ++cp2; else cp2 = disks[u]; printf("%c%s%c", u == 0 ? '(' : ' ', cp2, u == ccio.ccio_ndisks - 1 ? ')' : ','); } printf(", %lu blocks ", (u_long)ccio.ccio_size); if (ccio.ccio_ileave != 0) printf("interleaved at %d blocks\n", ccio.ccio_ileave); else printf("concatenated\n"); } free(disks); return (0); } static int do_all(int action) { FILE *f; char line[_POSIX2_LINE_MAX]; char *cp, **argv; int argc, rval; gid_t egid; rval = 0; egid = getegid(); setegid(getgid()); if ((f = fopen(ccdconf, "r")) == NULL) { setegid(egid); warn("fopen: %s", ccdconf); return (1); } setegid(egid); while (fgets(line, sizeof(line), f) != NULL) { argc = 0; argv = NULL; ++lineno; if ((cp = strrchr(line, '\n')) != NULL) *cp = '\0'; /* Break up the line and pass it's contents to do_single(). */ if (line[0] == '\0') goto end_of_line; for (cp = line; (cp = strtok(cp, " \t")) != NULL; cp = NULL) { if (*cp == '#') break; if ((argv = realloc(argv, sizeof(char *) * ++argc)) == NULL) { warnx("no memory to configure ccds"); return (1); } argv[argc - 1] = cp; /* * If our action is to unconfigure all, then pass * just the first token to do_single() and ignore * the rest. Since this will be encountered on * our first pass through the line, the Right * Thing will happen. */ if (action == CCD_UNCONFIGALL) { if (do_single(argc, argv, action)) rval = 1; goto end_of_line; } } if (argc != 0) if (do_single(argc, argv, action)) rval = 1; end_of_line: if (argv != NULL) free(argv); } (void)fclose(f); return (rval); } static int checkdev(char *path) { struct stat st; if (stat(path, &st) != 0) return (errno); if (!S_ISBLK(st.st_mode) && !S_ISCHR(st.st_mode)) return (EINVAL); return (0); } static int resolve_ccdname(char *name) { if (!strncmp(name, _PATH_DEV, strlen(_PATH_DEV))) name += strlen(_PATH_DEV); if (strncmp(name, "ccd", 3)) return -1; name += 3; if (!isdigit(*name)) return -1; return (strtoul(name, NULL, 10)); } static int do_io(int unit, u_long cmd, struct ccd_ioctl *cciop) { int fd; char *cp; char *path; asprintf(&path, "%s%s", _PATH_DEV, _PATH_CCDCTL); if ((fd = open(path, O_RDWR, 0640)) < 0) { asprintf(&path, "%sccd%dc", _PATH_DEV, unit); if ((fd = open(path, O_RDWR, 0640)) < 0) { warn("open: %s", path); return (1); } fprintf(stderr, "***WARNING***: Kernel older than ccdconfig(8), please upgrade it.\n"); fprintf(stderr, "***WARNING***: Continuing in 30 seconds\n"); sleep(30); } if (ioctl(fd, cmd, cciop) < 0) { switch (cmd) { case CCDIOCSET: cp = "CCDIOCSET"; break; case CCDIOCCLR: cp = "CCDIOCCLR"; break; case CCDCONFINFO: cp = "CCDCONFINFO"; break; case CCDCPPINFO: cp = "CCDCPPINFO"; break; default: cp = "unknown"; } warn("ioctl (%s): %s", cp, path); return (1); } return (0); } static int dump_ccd(int argc, char **argv) { char *cp; int i, error, numccd, numconfiged = 0; struct ccdconf conf; int ccd; /* * Read the ccd configuration data from the kernel and dump * it to stdout. */ if ((ccd = resolve_ccdname("ccd0")) < 0) { /* XXX */ warnx("invalid ccd name: %s", cp); return (1); } conf.size = 0; if (do_io(ccd, CCDCONFINFO, (struct ccd_ioctl *) &conf)) return (1); if (conf.size == 0) { printf("no concatenated disks configured\n"); return (0); } /* Allocate space for the configuration data. */ conf.buffer = alloca(conf.size); if (conf.buffer == NULL) { warnx("no memory for configuration data"); return (1); } if (do_io(ccd, CCDCONFINFO, (struct ccd_ioctl *) &conf)) return (1); numconfiged = conf.size / sizeof(struct ccd_s); if (argc == 0) { for (i = 0; i < numconfiged; i++) print_ccd_info(&(conf.buffer[i])); } else { while (argc) { cp = *argv++; --argc; if ((ccd = resolve_ccdname(cp)) < 0) { warnx("invalid ccd name: %s", cp); continue; } error = 1; for (i = 0; i < numconfiged; i++) { if (conf.buffer[i].sc_unit == ccd) { print_ccd_info(&(conf.buffer[i])); error = 0; break; } } if (error) { warnx("ccd%d not configured", numccd); continue; } } } return (0); } static void print_ccd_info(struct ccd_s *cs) { char *cp; static int header_printed = 0; struct ccdcpps cpps; int ccd; /* Print out header if necessary*/ if (header_printed == 0 && verbose) { printf("# ccd\t\tileave\tflags\tcompnent devices\n"); header_printed = 1; } /* Dump out softc information. */ printf("ccd%d\t\t%d\t%d\t", cs->sc_unit, cs->sc_ileave, cs->sc_cflags & CCDF_USERMASK); fflush(stdout); /* Read in the component info. */ asprintf(&cp, "ccd%d", cs->sc_unit); if (cp == NULL) { printf("\n"); warn("ccd%d: can't allocate memory", cs->sc_unit); return; } if ((ccd = resolve_ccdname(cp)) < 0) { printf("\n"); warnx("can't read component info: invalid ccd name: %s", cp); return; } cpps.size = 1024; cpps.buffer = alloca(cpps.size); memcpy(cpps.buffer, &ccd, sizeof ccd); if (do_io(ccd, CCDCPPINFO, (struct ccd_ioctl *) &cpps)) { printf("\n"); warnx("can't read component info"); return; } /* Display component info. */ for (cp = cpps.buffer; *cp && cp - cpps.buffer < cpps.size; cp += strlen(cp) + 1) { printf((cp + strlen(cp) + 1) < (cpps.buffer + cpps.size) ? "%s " : "%s", cp); } printf("\n"); return; } static int flags_to_val(char *flags) { char *cp, *tok; int i, tmp, val = ~CCDF_USERMASK; size_t flagslen; /* * The most common case is that of NIL flags, so check for * those first. */ if (strcmp("none", flags) == 0 || strcmp("0x0", flags) == 0 || strcmp("0", flags) == 0) return (0); flagslen = strlen(flags); /* Check for values represented by strings. */ if ((cp = strdup(flags)) == NULL) err(1, "no memory to parse flags"); tmp = 0; for (tok = cp; (tok = strtok(tok, ",")) != NULL; tok = NULL) { for (i = 0; flagvaltab[i].fv_flag != NULL; ++i) if (strcmp(tok, flagvaltab[i].fv_flag) == 0) break; if (flagvaltab[i].fv_flag == NULL) { free(cp); goto bad_string; } tmp |= flagvaltab[i].fv_val; } /* If we get here, the string was ok. */ free(cp); val = tmp; goto out; bad_string: /* Check for values represented in hex. */ if (flagslen > 2 && flags[0] == '0' && flags[1] == 'x') { errno = 0; /* to check for ERANGE */ val = (int)strtol(&flags[2], &cp, 16); if ((errno == ERANGE) || (*cp != '\0')) return (-1); goto out; } /* Check for values represented in decimal. */ errno = 0; /* to check for ERANGE */ val = (int)strtol(flags, &cp, 10); if ((errno == ERANGE) || (*cp != '\0')) return (-1); out: return (((val & ~CCDF_USERMASK) == 0) ? val : -1); } static void usage(void) { fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n", "usage: ccdconfig [-cv] ccd ileave [flags] dev [...]", " ccdconfig -C [-v] [-f config_file]", " ccdconfig -u [-v] ccd [...]", " ccdconfig -U [-v] [-f config_file]", " ccdconfig -g [ccd [...]]"); exit(1); } /* Local Variables: */ /* c-argdecl-indent: 8 */ /* c-indent-level: 8 */ /* End: */