mirror of
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a752604477
GCC doesn't warn about them without -pedantic. Approved by: das (mentor) PR: 56649 Reviewed by: md5
407 lines
8.4 KiB
C
407 lines
8.4 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/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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const enum platform platform =
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#if defined (P_DEBUG)
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P_DEBUG
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#elif defined (PC98)
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p_pc98
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#elif defined(__i386__)
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p_i386
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#elif defined(__alpha__)
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p_alpha
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#elif defined(__sparc64__)
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p_sparc64
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#elif defined(__ia64__)
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p_ia64
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#elif defined(__ppc__)
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p_ppc
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#elif defined(__amd64__)
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p_amd64
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#else
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IHAVENOIDEA
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#endif
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;
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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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case apple: return ("apple");
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default: return ("??");
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}
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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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char *conftxt;
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size_t txtsize;
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int error;
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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 = malloc(txtsize+1);
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if (conftxt == NULL) {
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warn("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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warn("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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return Int_Open_Disk(name, conftxt);
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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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#ifndef __ia64__
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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__) || defined(__amd64__)
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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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#else
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/* Should be: error "Debug_Disk: unknown arch"; */
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#endif
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#else /* __ia64__ */
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printf(" media size=%lu, sector size=%lu\n", d->media_size,
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d->sector_size);
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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__) || defined(__amd64__)
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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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const char *str1 = *(char* const*)a;
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const char *str2 = *(char* const*)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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if (listsize == 0)
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return (NULL);
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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 || disklist[0] == 0) {
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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;
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if (s % d->sector_size != 0)
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return;
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if (d->bootmgr)
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free(d->bootmgr);
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if (!b) {
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d->bootmgr = NULL;
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} else {
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d->bootmgr_size = s;
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d->bootmgr = malloc(s);
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if (!d->bootmgr)
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return;
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memcpy(d->bootmgr, b, s);
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}
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#endif
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#endif
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}
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int
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Set_Boot_Blocks(struct disk *d, const u_char *b1, const u_char *b2)
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{
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#if defined(__i386__) || defined(__amd64__)
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if (d->boot1)
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free(d->boot1);
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d->boot1 = malloc(512);
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if (!d->boot1)
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return -1;
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memcpy(d->boot1, b1, 512);
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if (d->boot2)
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free(d->boot2);
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d->boot2 = malloc(15 * 512);
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if (!d->boot2)
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return -1;
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memcpy(d->boot2, b2, 15 * 512);
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#elif defined(__alpha__)
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if (d->boot1)
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free(d->boot1);
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d->boot1 = malloc(15 * 512);
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if (!d->boot1)
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return -1;
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memcpy(d->boot1, b1, 15 * 512);
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#elif defined(__sparc64__)
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if (d->boot1 != NULL)
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free(d->boot1);
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d->boot1 = malloc(16 * 512);
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if (d->boot1 == NULL)
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return (-1);
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memcpy(d->boot1, b1, 16 * 512);
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#elif defined(__ia64__)
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/* nothing */
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#else
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/* Should be: #error "Set_Boot_Blocks: unknown arch"; */
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#endif
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return 0;
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}
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#ifdef PC98
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const char *
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slice_type_name( int type, int subtype )
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{
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switch (type) {
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case whole:
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return "whole";
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case fat:
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return "fat";
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case freebsd:
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switch (subtype) {
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case 0xc494: return "freebsd";
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default: return "unknown";
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}
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case unused:
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return "unused";
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default:
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return "unknown";
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}
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}
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#else /* PC98 */
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const char *
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slice_type_name( int type, int subtype )
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{
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switch (type) {
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case whole:
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return "whole";
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case mbr:
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switch (subtype) {
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case 1: return "fat (12-bit)";
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case 2: return "XENIX /";
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case 3: return "XENIX /usr";
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case 4: return "fat (16-bit,<=32Mb)";
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case 5: return "extended DOS";
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case 6: return "fat (16-bit,>32Mb)";
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case 7: return "NTFS/HPFS/QNX";
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case 8: return "AIX bootable";
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case 9: return "AIX data";
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case 10: return "OS/2 bootmgr";
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case 11: return "fat (32-bit)";
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case 12: return "fat (32-bit,LBA)";
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case 14: return "fat (16-bit,>32Mb,LBA)";
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case 15: return "extended DOS, LBA";
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case 18: return "Compaq Diagnostic";
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case 84: return "OnTrack diskmgr";
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case 100: return "Netware 2.x";
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case 101: return "Netware 3.x";
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case 115: return "SCO UnixWare";
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case 128: return "Minix 1.1";
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case 129: return "Minix 1.5";
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case 130: return "linux_swap";
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case 131: return "ext2fs";
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case 166: return "OpenBSD FFS"; /* 0xA6 */
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case 169: return "NetBSD FFS"; /* 0xA9 */
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case 182: return "OpenBSD"; /* dedicated */
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case 183: return "bsd/os";
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case 184: return "bsd/os swap";
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case 238: return "EFI GPT";
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case 239: return "EFI Sys. Part.";
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default: return "unknown";
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}
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case fat:
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return "fat";
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case freebsd:
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switch (subtype) {
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case 165: return "freebsd";
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default: return "unknown";
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}
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case extended:
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return "extended";
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case part:
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return "part";
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case efi:
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return "efi";
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case unused:
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return "unused";
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default:
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return "unknown";
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}
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}
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#endif /* PC98 */
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