diff options
Diffstat (limited to 'lib/libdisk/write_amd64_disk.c')
| -rw-r--r-- | lib/libdisk/write_amd64_disk.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/lib/libdisk/write_amd64_disk.c b/lib/libdisk/write_amd64_disk.c deleted file mode 100644 index 9899258..0000000 --- a/lib/libdisk/write_amd64_disk.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * ---------------------------------------------------------------------------- - * "THE BEER-WARE LICENSE" (Revision 42): - * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you - * can do whatever you want with this stuff. If we meet some day, and you think - * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp - * ---------------------------------------------------------------------------- - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/disklabel.h> -#include <sys/diskmbr.h> -#include <paths.h> -#include "libdisk.h" - -/* - * XXX: A lot of hardcoded 512s probably should be foo->sector_size; - * I'm not sure which, so I leave it like it worked before. --schweikh - */ -static int -Write_FreeBSD(int fd, const struct disk *new, const struct chunk *c1) -{ - struct disklabel *dl; - int i; - void *p; - u_char buf[BBSIZE]; - - for (i = 0; i < BBSIZE/512; i++) { - if (!(p = read_block(fd, i + c1->offset, 512))) - return (1); - memcpy(buf + 512 * i, p, 512); - free(p); - } - if (new->boot1) - memcpy(buf, new->boot1, 512); - - if (new->boot2) - memcpy(buf + 512, new->boot2, BBSIZE - 512); - - dl = (struct disklabel *)(buf + 512 * LABELSECTOR + LABELOFFSET); - Fill_Disklabel(dl, new, c1); - - for (i = 0; i < BBSIZE / 512; i++) - write_block(fd, i + c1->offset, buf + 512 * i, 512); - - return 0; -} - -static void -Write_Int32(u_int32_t *p, u_int32_t v) -{ - u_int8_t *bp = (u_int8_t *)p; - - bp[0] = (v >> 0) & 0xff; - bp[1] = (v >> 8) & 0xff; - bp[2] = (v >> 16) & 0xff; - bp[3] = (v >> 24) & 0xff; -} - -/* - * Special install-time configuration for the i386 boot0 boot manager. - */ -static void -Cfg_Boot_Mgr(u_char *mbr, int edd) -{ - - if (mbr[0x1b0] == 0x66 && mbr[0x1b1] == 0xbb) { - if (edd) - mbr[0x1bb] |= 0x80; /* Packet mode on */ - else - mbr[0x1bb] &= 0x7f; /* Packet mode off */ - } -} - -int -Write_Disk(const struct disk *d1) -{ - int fd, j; - uint i; - struct chunk *c1; - int ret = 0; - char device[64]; - u_char *mbr; - struct dos_partition *dp,work[NDOSPART]; - int s[4]; - int need_edd = 0; /* Need EDD (packet interface) */ - - strcpy(device, _PATH_DEV); - strcat(device, d1->name); - - fd = open(device, O_RDWR); - if (fd < 0) - return 1; - - memset(s, 0, sizeof s); - if (!(mbr = read_block(fd, 0, d1->sector_size))) { - close (fd); - return (1); - } - dp = (struct dos_partition *)(mbr + DOSPARTOFF); - memcpy(work, dp, sizeof work); - dp = work; - free(mbr); - for (c1 = d1->chunks->part; c1; c1 = c1->next) { - if (c1->type == unused) - continue; - if (!strcmp(c1->name, "X")) - continue; - j = c1->name[strlen(d1->name) + 1] - '1'; - if (j < 0 || j > 3) - continue; - s[j]++; - if (c1->type == freebsd) - ret += Write_FreeBSD(fd, d1, c1); - - Write_Int32(&dp[j].dp_start, c1->offset); - Write_Int32(&dp[j].dp_size, c1->size); - - i = c1->offset; - if (i >= 1024 * d1->bios_sect * d1->bios_hd) { - dp[j].dp_ssect = 0xff; - dp[j].dp_shd = 0xff; - dp[j].dp_scyl = 0xff; - need_edd++; - } else { - dp[j].dp_ssect = i % d1->bios_sect; - i -= dp[j].dp_ssect++; - i /= d1->bios_sect; - dp[j].dp_shd = i % d1->bios_hd; - i -= dp[j].dp_shd; - i /= d1->bios_hd; - dp[j].dp_scyl = i; - i -= dp[j].dp_scyl; - dp[j].dp_ssect |= i >> 2; - } -#ifdef DEBUG - printf("S:%lu = (%x/%x/%x)", c1->offset, - dp[j].dp_scyl, dp[j].dp_shd, dp[j].dp_ssect); -#endif - - i = c1->end; - dp[j].dp_esect = i % d1->bios_sect; - i -= dp[j].dp_esect++; - i /= d1->bios_sect; - dp[j].dp_ehd = i % d1->bios_hd; - i -= dp[j].dp_ehd; - i /= d1->bios_hd; - if (i > 1023) - i = 1023; - dp[j].dp_ecyl = i; - i -= dp[j].dp_ecyl; - dp[j].dp_esect |= i >> 2; -#ifdef DEBUG - printf(" E:%lu = (%x/%x/%x)\n", c1->end, - dp[j].dp_ecyl, dp[j].dp_ehd, dp[j].dp_esect); -#endif - - dp[j].dp_typ = c1->subtype; - if (c1->flags & CHUNK_ACTIVE) - dp[j].dp_flag = 0x80; - else - dp[j].dp_flag = 0; - } - j = 0; - for (i = 0; i < NDOSPART; i++) { - if (!s[i]) - memset(dp + i, 0, sizeof *dp); - if (dp[i].dp_flag) - j++; - } - if (!j) - for(i = 0; i < NDOSPART; i++) - if (dp[i].dp_typ == 0xa5) - dp[i].dp_flag = 0x80; - - if (!(mbr = read_block(fd, 0, d1->sector_size))) { - close (fd); - return (1); - } - if (d1->bootmgr) { - memcpy(mbr, d1->bootmgr, DOSPARTOFF); - Cfg_Boot_Mgr(mbr, need_edd); - } - memcpy(mbr + DOSPARTOFF, dp, sizeof *dp * NDOSPART); - mbr[512-2] = 0x55; - mbr[512-1] = 0xaa; - write_block(fd, 0, mbr, d1->sector_size); - if (d1->bootmgr && d1->bootmgr_size > d1->sector_size) - for (i = 1; i * d1->sector_size <= d1->bootmgr_size; i++) - write_block(fd, i, &d1->bootmgr[i * d1->sector_size], - d1->sector_size); - - close(fd); - return 0; -} |
