mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
7a6b06168b
devices that is not inserted any media. This is MFC candidate. Submitted by: ISAKA Yoji <isaka@cory.jp>
656 lines
14 KiB
C
656 lines
14 KiB
C
/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <inttypes.h>
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#include <err.h>
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#include <sys/sysctl.h>
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#include <sys/stdint.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/disklabel.h>
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#include <sys/diskslice.h>
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#include <sys/uuid.h>
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#include <sys/gpt.h>
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#include <paths.h>
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#include "libdisk.h"
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#include <ctype.h>
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#include <errno.h>
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#include <assert.h>
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#include <uuid.h>
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#ifdef DEBUG
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#define DPRINT(x) warn x
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#define DPRINTX(x) warnx x
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#else
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#define DPRINT(x)
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#define DPRINTX(x)
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#endif
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const char *
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chunk_name(chunk_e type)
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{
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switch(type) {
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case unused: return ("unused");
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case mbr: return ("mbr");
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case part: return ("part");
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case gpt: return ("gpt");
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case pc98: return ("pc98");
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case sun: return ("sun");
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case freebsd: return ("freebsd");
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case fat: return ("fat");
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case spare: return ("spare");
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case efi: return ("efi");
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default: return ("??");
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}
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};
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static chunk_e
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uuid_type(uuid_t *uuid)
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{
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static uuid_t _efi = GPT_ENT_TYPE_EFI;
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static uuid_t _mbr = GPT_ENT_TYPE_MBR;
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static uuid_t _fbsd = GPT_ENT_TYPE_FREEBSD;
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static uuid_t _swap = GPT_ENT_TYPE_FREEBSD_SWAP;
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static uuid_t _ufs = GPT_ENT_TYPE_FREEBSD_UFS;
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static uuid_t _vinum = GPT_ENT_TYPE_FREEBSD_VINUM;
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if (uuid_is_nil(uuid, NULL))
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return (unused);
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if (uuid_equal(uuid, &_efi, NULL))
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return (efi);
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if (uuid_equal(uuid, &_mbr, NULL))
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return (mbr);
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if (uuid_equal(uuid, &_fbsd, NULL))
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return (freebsd);
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if (uuid_equal(uuid, &_swap, NULL))
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return (part);
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if (uuid_equal(uuid, &_ufs, NULL))
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return (part);
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if (uuid_equal(uuid, &_vinum, NULL))
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return (part);
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return (spare);
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}
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struct disk *
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Open_Disk(const char *name)
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{
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return Int_Open_Disk(name);
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}
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struct disk *
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Int_Open_Disk(const char *name)
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{
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uuid_t uuid;
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char *conftxt = NULL;
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struct disk *d;
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size_t txtsize;
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int error, i;
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char *p, *q, *r, *a, *b, *n, *t, *sn;
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off_t o, len, off;
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u_int l, s, ty, sc, hd, alt;
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off_t lo[10];
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error = sysctlbyname("kern.geom.conftxt", NULL, &txtsize, NULL, 0);
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if (error) {
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warn("kern.geom.conftxt sysctl not available, giving up!");
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return (NULL);
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}
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conftxt = (char *) malloc(txtsize+1);
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if (conftxt == NULL) {
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DPRINT(("cannot malloc memory for conftxt"));
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return (NULL);
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}
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error = sysctlbyname("kern.geom.conftxt", conftxt, &txtsize, NULL, 0);
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if (error) {
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DPRINT(("error reading kern.geom.conftxt from the system"));
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free(conftxt);
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return (NULL);
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}
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conftxt[txtsize] = '\0'; /* in case kernel bug is still there */
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for (p = conftxt; p != NULL && *p; p = strchr(p, '\n')) {
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if (*p == '\n')
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p++;
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a = strsep(&p, " ");
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if (strcmp(a, "0"))
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continue;
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a = strsep(&p, " ");
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if (strcmp(a, "DISK"))
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continue;
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a = strsep(&p, " ");
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if (strcmp(a, name))
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continue;
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break;
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}
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q = strchr(p, '\n');
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if (q != NULL)
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*q++ = '\0';
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d = (struct disk *)calloc(sizeof *d, 1);
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if(d == NULL)
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return NULL;
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d->name = strdup(name);
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a = strsep(&p, " "); /* length in bytes */
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len = strtoimax(a, &r, 0);
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if (*r) {
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printf("BARF %d <%d>\n", __LINE__, *r);
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exit (0);
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}
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a = strsep(&p, " "); /* sectorsize */
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s = strtoul(a, &r, 0);
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if (*r) {
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printf("BARF %d <%d>\n", __LINE__, *r);
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exit (0);
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}
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if (s == 0)
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return (NULL);
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d->sector_size = s;
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len /= s; /* media size in number of sectors. */
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if (Add_Chunk(d, 0, len, name, whole, 0, 0, "-"))
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DPRINT(("Failed to add 'whole' chunk"));
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for (;;) {
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a = strsep(&p, " ");
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if (a == NULL)
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break;
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b = strsep(&p, " ");
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o = strtoul(b, &r, 0);
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if (*r) {
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printf("BARF %d <%d>\n", __LINE__, *r);
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exit (0);
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}
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if (!strcmp(a, "hd"))
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d->bios_hd = o;
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else if (!strcmp(a, "sc"))
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d->bios_sect = o;
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else
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printf("HUH ? <%s> <%s>\n", a, b);
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}
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/*
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* Calculate the number of cylinders this disk must have. If we have
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* an obvious insanity, we set the number of cyclinders to zero.
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*/
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o = d->bios_hd * d->bios_sect;
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d->bios_cyl = (o != 0) ? len / o : 0;
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p = q;
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lo[0] = 0;
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for (; p != NULL && *p; p = q) {
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q = strchr(p, '\n');
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if (q != NULL)
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*q++ = '\0';
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a = strsep(&p, " "); /* Index */
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if (!strcmp(a, "0"))
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break;
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l = strtoimax(a, &r, 0);
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if (*r) {
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printf("BARF %d <%d>\n", __LINE__, *r);
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exit (0);
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}
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t = strsep(&p, " "); /* Type {SUN, BSD, MBR, PC98, GPT} */
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n = strsep(&p, " "); /* name */
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a = strsep(&p, " "); /* len */
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len = strtoimax(a, &r, 0);
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if (*r) {
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printf("BARF %d <%d>\n", __LINE__, *r);
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exit (0);
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}
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a = strsep(&p, " "); /* secsize */
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s = strtoimax(a, &r, 0);
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if (*r) {
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printf("BARF %d <%d>\n", __LINE__, *r);
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exit (0);
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}
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for (;;) {
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a = strsep(&p, " ");
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if (a == NULL)
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break;
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/* XXX: Slice name may include a space. */
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if (!strcmp(a, "sn")) {
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sn = p;
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break;
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}
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b = strsep(&p, " ");
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o = strtoimax(b, &r, 0);
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if (*r) {
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uint32_t status;
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uuid_from_string(b, &uuid, &status);
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if (status != uuid_s_ok) {
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printf("BARF %d <%d>\n", __LINE__, *r);
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exit (0);
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}
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o = uuid_type(&uuid);
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}
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if (!strcmp(a, "o"))
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off = o;
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else if (!strcmp(a, "i"))
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i = o;
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else if (!strcmp(a, "ty"))
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ty = o;
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else if (!strcmp(a, "sc"))
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sc = o;
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else if (!strcmp(a, "hd"))
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hd = o;
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else if (!strcmp(a, "alt"))
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alt = o;
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}
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/* PLATFORM POLICY BEGIN ----------------------------------- */
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if (platform == p_sparc64 && !strcmp(t, "SUN") && i == 2)
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continue;
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if (platform == p_sparc64 && !strcmp(t, "SUN") &&
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d->chunks->part->part == NULL) {
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d->bios_hd = hd;
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d->bios_sect = sc;
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o = d->chunks->size / (hd * sc);
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o *= (hd * sc);
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o -= alt * hd * sc;
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if (Add_Chunk(d, 0, o, name, freebsd, 0, 0, "-"))
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DPRINT(("Failed to add 'freebsd' chunk"));
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}
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if (platform == p_alpha && !strcmp(t, "BSD") &&
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d->chunks->part->part == NULL) {
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if (Add_Chunk(d, 0, d->chunks->size, name, freebsd,
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0, 0, "-"))
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DPRINT(("Failed to add 'freebsd' chunk"));
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}
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if (!strcmp(t, "BSD") && i == RAW_PART)
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continue;
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/* PLATFORM POLICY END ------------------------------------- */
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off /= s;
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len /= s;
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off += lo[l - 1];
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lo[l] = off;
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if (!strcmp(t, "SUN"))
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i = Add_Chunk(d, off, len, n, part, 0, 0, 0);
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else if (!strncmp(t, "MBR", 3)) {
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switch (ty) {
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case 0xa5:
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i = Add_Chunk(d, off, len, n, freebsd, ty, 0, 0);
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break;
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case 0x01:
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case 0x04:
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case 0x06:
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case 0x0b:
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case 0x0c:
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case 0x0e:
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i = Add_Chunk(d, off, len, n, fat, ty, 0, 0);
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break;
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case 0xef: /* EFI */
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i = Add_Chunk(d, off, len, n, efi, ty, 0, 0);
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break;
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default:
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i = Add_Chunk(d, off, len, n, mbr, ty, 0, 0);
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break;
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}
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} else if (!strcmp(t, "BSD"))
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i = Add_Chunk(d, off, len, n, part, 0, 0, 0);
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else if (!strcmp(t, "PC98")) {
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switch (ty & 0x7f) {
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case 0x14:
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i = Add_Chunk(d, off, len, n, freebsd, ty, 0,
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sn);
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break;
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case 0x20:
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case 0x21:
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case 0x22:
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case 0x23:
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case 0x24:
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i = Add_Chunk(d, off, len, n, fat, ty, 0, sn);
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break;
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default:
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i = Add_Chunk(d, off, len, n, pc98, ty, 0, sn);
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break;
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}
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} else if (!strcmp(t, "GPT"))
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i = Add_Chunk(d, off, len, n, ty, 0, 0, 0);
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else {
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printf("BARF %d\n", __LINE__);
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exit(0);
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}
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}
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/* PLATFORM POLICY BEGIN ------------------------------------- */
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/* We have a chance to do things on a blank disk here */
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if (platform == p_sparc64 && d->chunks->part->part == NULL) {
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hd = d->bios_hd;
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sc = d->bios_sect;
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o = d->chunks->size / (hd * sc);
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o *= (hd * sc);
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o -= 2 * hd * sc;
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if (Add_Chunk(d, 0, o, name, freebsd, 0, 0, "-"))
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DPRINT(("Failed to add 'freebsd' chunk"));
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}
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/* PLATFORM POLICY END --------------------------------------- */
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return (d);
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i = 0;
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}
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void
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Debug_Disk(struct disk *d)
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{
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printf("Debug_Disk(%s)", d->name);
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#if 0
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printf(" real_geom=%lu/%lu/%lu",
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d->real_cyl, d->real_hd, d->real_sect);
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#endif
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printf(" bios_geom=%lu/%lu/%lu = %lu\n",
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d->bios_cyl, d->bios_hd, d->bios_sect,
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d->bios_cyl * d->bios_hd * d->bios_sect);
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#if defined(PC98)
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printf(" boot1=%p, boot2=%p, bootipl=%p, bootmenu=%p\n",
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d->boot1, d->boot2, d->bootipl, d->bootmenu);
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#elif defined(__i386__)
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printf(" boot1=%p, boot2=%p, bootmgr=%p\n",
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d->boot1, d->boot2, d->bootmgr);
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#elif defined(__alpha__)
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printf(" boot1=%p, bootmgr=%p\n",
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d->boot1, d->bootmgr);
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#elif defined(__ia64__)
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printf("\n");
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#else
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/* Should be: error "Debug_Disk: unknown arch"; */
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#endif
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Debug_Chunk(d->chunks);
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}
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void
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Free_Disk(struct disk *d)
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{
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if (d->chunks)
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Free_Chunk(d->chunks);
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if (d->name)
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free(d->name);
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#ifdef PC98
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if (d->bootipl)
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free(d->bootipl);
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if (d->bootmenu)
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free(d->bootmenu);
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#else
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#if !defined(__ia64__)
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if (d->bootmgr)
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free(d->bootmgr);
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#endif
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#endif
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#if !defined(__ia64__)
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if (d->boot1)
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free(d->boot1);
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#endif
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#if defined(__i386__)
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if (d->boot2)
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free(d->boot2);
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#endif
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free(d);
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}
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#if 0
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void
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Collapse_Disk(struct disk *d)
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{
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while (Collapse_Chunk(d, d->chunks))
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;
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}
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#endif
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static int
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qstrcmp(const void* a, const void* b)
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{
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char *str1 = *(char**)a;
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char *str2 = *(char**)b;
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return strcmp(str1, str2);
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}
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char **
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Disk_Names()
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{
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int disk_cnt;
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static char **disks;
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int error;
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size_t listsize;
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char *disklist;
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error = sysctlbyname("kern.disks", NULL, &listsize, NULL, 0);
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if (error) {
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warn("kern.disks sysctl not available");
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return NULL;
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}
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disks = malloc(sizeof *disks * (1 + MAX_NO_DISKS));
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if (disks == NULL)
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return NULL;
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disklist = (char *)malloc(listsize + 1);
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if (disklist == NULL) {
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free(disks);
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return NULL;
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}
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memset(disks,0,sizeof *disks * (1 + MAX_NO_DISKS));
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memset(disklist, 0, listsize + 1);
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error = sysctlbyname("kern.disks", disklist, &listsize, NULL, 0);
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if (error) {
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free(disklist);
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free(disks);
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return NULL;
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}
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for (disk_cnt = 0; disk_cnt < MAX_NO_DISKS; disk_cnt++) {
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disks[disk_cnt] = strsep(&disklist, " ");
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if (disks[disk_cnt] == NULL)
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break;
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}
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qsort(disks, disk_cnt, sizeof(char*), qstrcmp);
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return disks;
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}
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#ifdef PC98
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void
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Set_Boot_Mgr(struct disk *d, const u_char *bootipl, const size_t bootipl_size,
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const u_char *bootmenu, const size_t bootmenu_size)
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#else
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void
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Set_Boot_Mgr(struct disk *d, const u_char *b, const size_t s)
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#endif
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{
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#if !defined(__ia64__)
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#ifdef PC98
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if (d->sector_size == 0)
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return;
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if (bootipl_size % d->sector_size != 0)
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return;
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if (d->bootipl)
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free(d->bootipl);
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if (!bootipl) {
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d->bootipl = NULL;
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} else {
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d->bootipl_size = bootipl_size;
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d->bootipl = malloc(bootipl_size);
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if (!d->bootipl)
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return;
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memcpy(d->bootipl, bootipl, bootipl_size);
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}
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if (bootmenu_size % d->sector_size != 0)
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return;
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if (d->bootmenu)
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free(d->bootmenu);
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if (!bootmenu) {
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d->bootmenu = NULL;
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} else {
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d->bootmenu_size = bootmenu_size;
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d->bootmenu = malloc(bootmenu_size);
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if (!d->bootmenu)
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return;
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memcpy(d->bootmenu, bootmenu, bootmenu_size);
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}
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#else
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if (d->sector_size == 0)
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return;
|
|
if (s % d->sector_size != 0)
|
|
return;
|
|
if (d->bootmgr)
|
|
free(d->bootmgr);
|
|
if (!b) {
|
|
d->bootmgr = NULL;
|
|
} else {
|
|
d->bootmgr_size = s;
|
|
d->bootmgr = malloc(s);
|
|
if (!d->bootmgr)
|
|
return;
|
|
memcpy(d->bootmgr, b, s);
|
|
}
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
int
|
|
Set_Boot_Blocks(struct disk *d, const u_char *b1, const u_char *b2)
|
|
{
|
|
#if defined(__i386__)
|
|
if (d->boot1)
|
|
free(d->boot1);
|
|
d->boot1 = malloc(512);
|
|
if (!d->boot1)
|
|
return -1;
|
|
memcpy(d->boot1, b1, 512);
|
|
if (d->boot2)
|
|
free(d->boot2);
|
|
d->boot2 = malloc(15 * 512);
|
|
if (!d->boot2)
|
|
return -1;
|
|
memcpy(d->boot2, b2, 15 * 512);
|
|
#elif defined(__alpha__)
|
|
if (d->boot1)
|
|
free(d->boot1);
|
|
d->boot1 = malloc(15 * 512);
|
|
if (!d->boot1)
|
|
return -1;
|
|
memcpy(d->boot1, b1, 15 * 512);
|
|
#elif defined(__sparc64__)
|
|
if (d->boot1 != NULL)
|
|
free(d->boot1);
|
|
d->boot1 = malloc(16 * 512);
|
|
if (d->boot1 == NULL)
|
|
return (-1);
|
|
memcpy(d->boot1, b1, 16 * 512);
|
|
#elif defined(__ia64__)
|
|
/* nothing */
|
|
#else
|
|
/* Should be: #error "Set_Boot_Blocks: unknown arch"; */
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#ifdef PC98
|
|
const char *
|
|
slice_type_name( int type, int subtype )
|
|
{
|
|
|
|
switch (type) {
|
|
case whole:
|
|
return "whole";
|
|
case fat:
|
|
return "fat";
|
|
case freebsd:
|
|
switch (subtype) {
|
|
case 0xc494: return "freebsd";
|
|
default: return "unknown";
|
|
}
|
|
case unused:
|
|
return "unused";
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
#else /* PC98 */
|
|
const char *
|
|
slice_type_name( int type, int subtype )
|
|
{
|
|
|
|
switch (type) {
|
|
case whole:
|
|
return "whole";
|
|
case mbr:
|
|
switch (subtype) {
|
|
case 1: return "fat (12-bit)";
|
|
case 2: return "XENIX /";
|
|
case 3: return "XENIX /usr";
|
|
case 4: return "fat (16-bit,<=32Mb)";
|
|
case 5: return "extended DOS";
|
|
case 6: return "fat (16-bit,>32Mb)";
|
|
case 7: return "NTFS/HPFS/QNX";
|
|
case 8: return "AIX bootable";
|
|
case 9: return "AIX data";
|
|
case 10: return "OS/2 bootmgr";
|
|
case 11: return "fat (32-bit)";
|
|
case 12: return "fat (32-bit,LBA)";
|
|
case 14: return "fat (16-bit,>32Mb,LBA)";
|
|
case 15: return "extended DOS, LBA";
|
|
case 18: return "Compaq Diagnostic";
|
|
case 84: return "OnTrack diskmgr";
|
|
case 100: return "Netware 2.x";
|
|
case 101: return "Netware 3.x";
|
|
case 115: return "SCO UnixWare";
|
|
case 128: return "Minix 1.1";
|
|
case 129: return "Minix 1.5";
|
|
case 130: return "linux_swap";
|
|
case 131: return "ext2fs";
|
|
case 166: return "OpenBSD FFS"; /* 0xA6 */
|
|
case 169: return "NetBSD FFS"; /* 0xA9 */
|
|
case 182: return "OpenBSD"; /* dedicated */
|
|
case 183: return "bsd/os";
|
|
case 184: return "bsd/os swap";
|
|
case 238: return "EFI GPT";
|
|
case 239: return "EFI Sys. Part.";
|
|
default: return "unknown";
|
|
}
|
|
case fat:
|
|
return "fat";
|
|
case freebsd:
|
|
switch (subtype) {
|
|
case 165: return "freebsd";
|
|
default: return "unknown";
|
|
}
|
|
case extended:
|
|
return "extended";
|
|
case part:
|
|
return "part";
|
|
case efi:
|
|
return "efi";
|
|
case unused:
|
|
return "unused";
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
#endif /* PC98 */
|