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 * ----------------------------------------------------------------------------
10 #include <sys/cdefs.h>
11 __FBSDID("$FreeBSD$");
18 #include <sys/types.h>
20 #include <sys/ioctl.h>
21 #include <sys/disklabel.h>
22 #include <sys/diskslice.h>
24 #include <sys/diskpc98.h>
26 #include <sys/diskmbr.h>
31 #define DOSPTYP_EXTENDED 5
35 #define DEF_INTERLEAVE 1
38 #define WHERE(offset,disk) (offset)
40 #define WHERE(offset,disk) (disk->flags & DISK_ON_TRACK ? offset + 63 : offset)
43 /* XXX: A lot of hardcoded 512s probably should be foo->sector_size;
44 I'm not sure which, so I leave it like it worked before. --schweikh */
46 Write_FreeBSD(int fd, struct disk *new, struct disk *old, struct chunk *c1)
57 for(i = 0; i < BBSIZE/512; i++) {
58 p = read_block(fd, WHERE(i + c1->offset, new), 512);
59 memcpy(buf + 512 * i, p, 512);
64 memcpy(buf, new->boot1, 512);
67 memcpy(buf + 512, new->boot2, BBSIZE-512);
68 #elif defined(__alpha__)
70 memcpy(buf + 512, new->boot1, BBSIZE-512);
73 dl = (struct disklabel *)(buf + 512 * LABELSECTOR + LABELOFFSET);
74 memset(dl, 0, sizeof *dl);
76 for(c2 = c1->part; c2; c2 = c2->next) {
77 if (c2->type == unused) continue;
78 if (!strcmp(c2->name, "X")) continue;
80 j = c2->name[strlen(c2->name) - 1] - 'a';
82 j = c2->name[strlen(new->name) + 2] - 'a';
84 if (j < 0 || j >= MAXPARTITIONS || j == RAW_PART) {
86 warn("weird partition letter %c", c2->name[strlen(new->name) + 2]);
90 dl->d_partitions[j].p_size = c2->size;
91 dl->d_partitions[j].p_offset = c2->offset;
92 dl->d_partitions[j].p_fstype = c2->subtype;
95 dl->d_bbsize = BBSIZE;
97 * Add in defaults for superblock size, interleave, and rpms
99 dl->d_sbsize = SBSIZE;
100 dl->d_interleave = DEF_INTERLEAVE;
103 strcpy(dl->d_typename, c1->name);
106 dl->d_secperunit = new->chunks->size;
107 dl->d_ncylinders = new->bios_cyl;
108 dl->d_ntracks = new->bios_hd;
109 dl->d_nsectors = new->bios_sect;
110 dl->d_secpercyl = dl->d_ntracks * dl->d_nsectors;
112 dl->d_npartitions = MAXPARTITIONS;
114 dl->d_type = new->name[0] == 's' || new->name[0] == 'd' ||
115 new->name[0] == 'o' ? DTYPE_SCSI : DTYPE_ESDI;
116 dl->d_partitions[RAW_PART].p_size = c1->size;
117 dl->d_partitions[RAW_PART].p_offset = c1->offset;
120 dl->d_interleave = 1;
124 if(new->flags & DISK_ON_TRACK)
125 for(i=0;i<MAXPARTITIONS;i++)
126 if (dl->d_partitions[i].p_size)
127 dl->d_partitions[i].p_offset += 63;
129 dl->d_magic = DISKMAGIC;
130 dl->d_magic2 = DISKMAGIC;
131 dl->d_checksum = dkcksum(dl);
135 * Tell SRM where the bootstrap is.
143 * Generate the bootblock checksum for the SRM console.
145 for (lp = (u_long *)buf, i = 0, sum = 0; i < 63; i++)
150 for(i=0;i<BBSIZE/512;i++) {
151 write_block(fd,WHERE(i + c1->offset, new), buf + 512 * i, 512);
158 Write_Extended(int fd, struct disk *new, struct disk *old, struct chunk *c1)
163 #if defined(__i386__) && !defined(PC98)
165 Write_Int32(u_int32_t *p, u_int32_t v)
167 u_int8_t *bp = (u_int8_t *)p;
168 bp[0] = (v >> 0) & 0xff;
169 bp[1] = (v >> 8) & 0xff;
170 bp[2] = (v >> 16) & 0xff;
171 bp[3] = (v >> 24) & 0xff;
175 #if defined(__i386__) && !defined(PC98)
177 * Special install-time configuration for the i386 boot0 boot manager.
180 Cfg_Boot_Mgr(u_char *mbr, int edd)
182 if (mbr[0x1b0] == 0x66 && mbr[0x1b1] == 0xbb) {
184 mbr[0x1bb] |= 0x80; /* Packet mode on */
186 mbr[0x1bb] &= 0x7f; /* Packet mode off */
192 Write_Disk(struct disk *d1)
198 struct disk *old = 0;
203 struct dos_partition *dp,work[NDOSPART];
206 int PC98_EntireDisk = 0;
210 int need_edd = 0; /* Need EDD (packet interface) */
216 strcpy(device,_PATH_DEV);
217 strcat(device,d1->name);
220 /* XXX - for entire FreeBSD(98) */
221 for (c1 = d1->chunks->part; c1; c1 = c1->next) {
222 if ((c1->type == freebsd) || (c1->offset == 0))
227 fd = open(device,O_RDWR);
230 warn("open(%s) failed", device);
234 ioctl(fd, DIOCWLABEL, &one);
236 memset(s,0,sizeof s);
238 mbr = read_block(fd, WHERE(1, d1), d1->sector_size);
240 mbr = read_block(fd, WHERE(0, d1), d1->sector_size);
242 dp = (struct dos_partition*)(mbr + DOSPARTOFF);
243 memcpy(work, dp, sizeof work);
246 for (c1 = d1->chunks->part; c1; c1 = c1->next) {
247 if (c1->type == unused) continue;
248 if (!strcmp(c1->name, "X")) continue;
250 j = c1->name[4] - '1';
251 j = c1->name[strlen(d1->name) + 1] - '1';
261 if (c1->type == extended)
262 ret += Write_Extended(fd, d1, old, c1);
264 if (c1->type == freebsd)
265 ret += Write_FreeBSD(fd, d1, old, c1);
269 Write_Int32(&dp[j].dp_start, c1->offset);
270 Write_Int32(&dp[j].dp_size, c1->size);
275 dp[j].dp_ssect = dp[j].dp_ipl_sct = i % d1->bios_sect;
278 dp[j].dp_shd = dp[j].dp_ipl_head = i % d1->bios_hd;
281 dp[j].dp_scyl = dp[j].dp_ipl_cyl = i;
283 if (i >= 1024*d1->bios_sect*d1->bios_hd) {
284 dp[j].dp_ssect = 0xff;
286 dp[j].dp_scyl = 0xff;
289 dp[j].dp_ssect = i % d1->bios_sect;
290 i -= dp[j].dp_ssect++;
292 dp[j].dp_shd = i % d1->bios_hd;
297 dp[j].dp_ssect |= i >> 2;
302 printf("S:%lu = (%x/%x/%x)",
303 c1->offset, dp[j].dp_scyl, dp[j].dp_shd, dp[j].dp_ssect);
309 dp[j].dp_esect = dp[j].dp_ehd = 0;
310 dp[j].dp_ecyl = i / (d1->bios_sect * d1->bios_hd);
312 dp[j].dp_esect = i % d1->bios_sect;
315 dp[j].dp_ehd = i % d1->bios_hd;
321 dp[j].dp_esect = i % d1->bios_sect;
322 i -= dp[j].dp_esect++;
324 dp[j].dp_ehd = i % d1->bios_hd;
327 if (i>1023) i = 1023;
330 dp[j].dp_esect |= i >> 2;
334 printf(" E:%lu = (%x/%x/%x)\n",
335 c1->end, dp[j].dp_ecyl, dp[j].dp_ehd, dp[j].dp_esect);
339 dp[j].dp_mid = c1->subtype & 0xff;
340 dp[j].dp_sid = c1->subtype >> 8;
341 if (c1->flags & CHUNK_ACTIVE)
342 dp[j].dp_mid |= 0x80;
344 strncpy(dp[j].dp_name, c1->sname, 16);
346 dp[j].dp_typ = c1->subtype;
347 if (c1->flags & CHUNK_ACTIVE)
348 dp[j].dp_flag = 0x80;
356 for(i = 0; i < NDOSPART; i++) {
358 memset(dp + i, 0, sizeof *dp);
366 for(i = 0; i < NDOSPART; i++)
367 if (dp[i].dp_typ == 0xa5)
368 dp[i].dp_flag = 0x80;
373 write_block(fd, WHERE(0, d1), d1->bootipl, d1->sector_size);
375 mbr = read_block(fd, WHERE(1, d1), d1->sector_size);
376 memcpy(mbr + DOSPARTOFF, dp, sizeof *dp * NDOSPART);
377 /* XXX - for entire FreeBSD(98) */
378 for (c1 = d1->chunks->part; c1; c1 = c1->next)
379 if (((c1->type == freebsd) || (c1->type == fat))
380 && (c1->offset == 0))
382 if (PC98_EntireDisk == 0)
383 write_block(fd, WHERE(1, d1), mbr, d1->sector_size);
386 for (i = 0; i * d1->sector_size < d1->bootmenu_size; i++)
387 write_block(fd, WHERE(2 + i, d1), &d1->bootmenu[i * d1->sector_size], d1->sector_size);
389 mbr = read_block(fd, WHERE(0, d1), d1->sector_size);
391 memcpy(mbr, d1->bootmgr, DOSPARTOFF);
392 Cfg_Boot_Mgr(mbr, need_edd);
394 memcpy(mbr + DOSPARTOFF, dp, sizeof *dp * NDOSPART);
397 write_block(fd, WHERE(0, d1), mbr, d1->sector_size);
398 if (d1->bootmgr && d1->bootmgr_size > d1->sector_size)
399 for(i = 1; i * d1->sector_size <= d1->bootmgr_size; i++)
400 write_block(fd, WHERE(i, d1), &d1->bootmgr[i * d1->sector_size], d1->sector_size);
405 i = ioctl(fd, DIOCSYNCSLICEINFO, &i);
408 warn("ioctl(DIOCSYNCSLICEINFO)");
410 ioctl(fd, DIOCWLABEL, &zero);