write_sparc64_disk.c revision 225736
1/* 2 * ---------------------------------------------------------------------------- 3 * "THE BEER-WARE LICENSE" (Revision 42): 4 * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you 5 * can do whatever you want with this stuff. If we meet some day, and you think 6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 7 * ---------------------------------------------------------------------------- 8 */ 9 10#include <sys/cdefs.h> 11__FBSDID("$FreeBSD: stable/9/lib/libdisk/write_sparc64_disk.c 113840 2003-04-22 05:34:35Z phk $"); 12 13#include <stdio.h> 14#include <stdlib.h> 15#include <unistd.h> 16#include <fcntl.h> 17#include <err.h> 18#include <string.h> 19#include <sys/types.h> 20#include <sys/stat.h> 21#include <sys/ioctl.h> 22#include <sys/sun_disklabel.h> 23#include <paths.h> 24#include <errno.h> 25#include "libdisk.h" 26 27#include "geom_sunlabel_enc.c" 28 29int 30Write_Disk(const struct disk *d1) 31{ 32 struct sun_disklabel *sl; 33 struct chunk *c, *c1, *c2; 34 int i; 35 char *p; 36 u_long secpercyl; 37 char device[64]; 38 u_char buf[SUN_SIZE]; 39 int fd; 40 41 strcpy(device, _PATH_DEV); 42 strcat(device, d1->name); 43 44 fd = open(device, O_RDWR); 45 if (fd < 0) { 46 warn("open(%s) failed", device); 47 return (1); 48 } 49 50 sl = calloc(sizeof *sl, 1); 51 c = d1->chunks; 52 c2 = c->part; 53 secpercyl = d1->bios_sect * d1->bios_hd; 54 sl->sl_pcylinders = c->size / secpercyl; 55 sl->sl_ncylinders = c2->size / secpercyl; 56 sl->sl_acylinders = sl->sl_pcylinders - sl->sl_ncylinders; 57 sl->sl_magic = SUN_DKMAGIC; 58 sl->sl_nsectors = d1->bios_sect; 59 sl->sl_ntracks = d1->bios_hd; 60 if (c->size > 4999 * 1024 * 2) { 61 sprintf(sl->sl_text, "FreeBSD%luG cyl %u alt %u hd %u sec %u", 62 (c->size + 1024 * 1024) / (2 * 1024 * 1024), 63 sl->sl_ncylinders, sl->sl_acylinders, 64 sl->sl_ntracks, sl->sl_nsectors); 65 } else { 66 sprintf(sl->sl_text, "FreeBSD%luM cyl %u alt %u hd %u sec %u", 67 (c->size + 1024) / (2 * 1024), 68 sl->sl_ncylinders, sl->sl_acylinders, 69 sl->sl_ntracks, sl->sl_nsectors); 70 } 71 sl->sl_interleave = 1; 72 sl->sl_sparespercyl = 0; 73 sl->sl_rpm = 3600; 74 75 for (c1 = c2->part; c1 != NULL; c1 = c1->next) { 76 p = c1->name; 77 p += strlen(p); 78 p--; 79 if (*p < 'a') 80 continue; 81 i = *p - 'a'; 82 if (i >= SUN_NPART) 83 continue; 84 sl->sl_part[i].sdkp_cyloffset = c1->offset / secpercyl; 85 sl->sl_part[i].sdkp_nsectors = c1->size; 86 for (i = 1; i < 16; i++) { 87 write_block(fd, c1->offset + i, d1->boot1 + (i * 512), 88 512); 89 } 90 } 91 92 /* 93 * We need to fill in the "RAW" partition as well. Emperical data 94 * seems to indicate that this covers the "obviously" visible part 95 * of the disk, ie: sl->sl_ncylinders. 96 */ 97 sl->sl_part[SUN_RAWPART].sdkp_cyloffset = 0; 98 sl->sl_part[SUN_RAWPART].sdkp_nsectors = sl->sl_ncylinders * secpercyl; 99 100 memset(buf, 0, sizeof buf); 101 sunlabel_enc(buf, sl); 102 write_block(fd, 0, buf, sizeof buf); 103 104 close(fd); 105 return 0; 106} 107