360 lines
8.1 KiB
C
360 lines
8.1 KiB
C
/*
|
|
* ----------------------------------------------------------------------------
|
|
* "THE BEER-WARE LICENSE" (Revision 42):
|
|
* <phk@login.dknet.dk> 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
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* $Id: create_chunk.c,v 1.21.2.6 1995/11/18 10:02:10 jkh Exp $
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <fcntl.h>
|
|
#include <stdarg.h>
|
|
#include <sys/types.h>
|
|
#include <sys/disklabel.h>
|
|
#include <sys/diskslice.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <err.h>
|
|
#include "libdisk.h"
|
|
|
|
/* Clone these two from sysinstall because we need our own copies
|
|
* due to link order problems with `crunch'. Feh!
|
|
*/
|
|
static int
|
|
isDebug()
|
|
{
|
|
static int debug = 0; /* Allow debugger to tweak it */
|
|
|
|
return debug;
|
|
}
|
|
|
|
/* Write something to the debugging port */
|
|
static void
|
|
msgDebug(char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
char *dbg;
|
|
static int DebugFD = -1;
|
|
|
|
if (DebugFD == -1)
|
|
DebugFD = open("/dev/ttyv1", O_RDWR);
|
|
dbg = (char *)alloca(FILENAME_MAX);
|
|
strcpy(dbg, "DEBUG: ");
|
|
va_start(args, fmt);
|
|
vsnprintf((char *)(dbg + strlen(dbg)), FILENAME_MAX, fmt, args);
|
|
va_end(args);
|
|
write(DebugFD, dbg, strlen(dbg));
|
|
}
|
|
|
|
void
|
|
Fixup_FreeBSD_Names(struct disk *d, struct chunk *c)
|
|
{
|
|
struct chunk *c1, *c3;
|
|
int j;
|
|
|
|
if (!strcmp(c->name, "X")) return;
|
|
|
|
/* reset all names to "X" */
|
|
for (c1 = c->part; c1 ; c1 = c1->next) {
|
|
c1->oname = c1->name;
|
|
c1->name = malloc(12);
|
|
if(!c1->name) err(1,"Malloc failed");
|
|
strcpy(c1->name,"X");
|
|
}
|
|
|
|
/* Allocate the first swap-partition we find */
|
|
for (c1 = c->part; c1 ; c1 = c1->next) {
|
|
if (c1->type == unused) continue;
|
|
if (c1->subtype != FS_SWAP) continue;
|
|
sprintf(c1->name,"%s%c",c->name,SWAP_PART+'a');
|
|
break;
|
|
}
|
|
|
|
/* Allocate the first root-partition we find */
|
|
for (c1 = c->part; c1 ; c1 = c1->next) {
|
|
if (c1->type == unused) continue;
|
|
if (!(c1->flags & CHUNK_IS_ROOT)) continue;
|
|
sprintf(c1->name,"%s%c",c->name,0+'a');
|
|
break;
|
|
}
|
|
|
|
/* Try to give them the same as they had before */
|
|
for (c1 = c->part; c1 ; c1 = c1->next) {
|
|
if (strcmp(c1->name,"X")) continue;
|
|
for(c3 = c->part; c3 ; c3 = c3->next)
|
|
if (c1 != c3 && !strcmp(c3->name, c1->oname)) {
|
|
goto newname;
|
|
}
|
|
strcpy(c1->name,c1->oname);
|
|
newname:
|
|
}
|
|
|
|
|
|
/* Allocate the rest sequentially */
|
|
for (c1 = c->part; c1 ; c1 = c1->next) {
|
|
const char order[] = "efghabd";
|
|
if (c1->type == unused) continue;
|
|
if (strcmp("X",c1->name)) continue;
|
|
|
|
for(j=0;j<strlen(order);j++) {
|
|
sprintf(c1->name,"%s%c",c->name,order[j]);
|
|
for(c3 = c->part; c3 ; c3 = c3->next)
|
|
if (c1 != c3 && !strcmp(c3->name, c1->name))
|
|
goto match;
|
|
break;
|
|
match:
|
|
strcpy(c1->name,"X");
|
|
continue;
|
|
}
|
|
}
|
|
for (c1 = c->part; c1 ; c1 = c1->next) {
|
|
free(c1->oname);
|
|
c1->oname = 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
Fixup_Extended_Names(struct disk *d, struct chunk *c)
|
|
{
|
|
struct chunk *c1;
|
|
int j=5;
|
|
|
|
for (c1 = c->part; c1 ; c1 = c1->next) {
|
|
if (c1->type == unused) continue;
|
|
free(c1->name);
|
|
c1->name = malloc(12);
|
|
if(!c1->name) err(1,"malloc failed");
|
|
sprintf(c1->name,"%ss%d",d->chunks->name,j++);
|
|
if (c1->type == freebsd)
|
|
Fixup_FreeBSD_Names(d,c1);
|
|
}
|
|
}
|
|
|
|
void
|
|
Fixup_Names(struct disk *d)
|
|
{
|
|
struct chunk *c1, *c2, *c3;
|
|
int i,j;
|
|
|
|
c1 = d->chunks;
|
|
for(i=1,c2 = c1->part; c2 ; c2 = c2->next) {
|
|
c2->flags &= ~CHUNK_BSD_COMPAT;
|
|
if (c2->type == unused)
|
|
continue;
|
|
if (strcmp(c2->name,"X"))
|
|
continue;
|
|
c2->oname = malloc(12);
|
|
if(!c2->oname) err(1,"malloc failed");
|
|
for(j=1;j<=NDOSPART;j++) {
|
|
sprintf(c2->oname,"%ss%d",c1->name,j);
|
|
for(c3 = c1->part; c3 ; c3 = c3->next)
|
|
if (c3 != c2 && !strcmp(c3->name, c2->oname))
|
|
goto match;
|
|
free(c2->name);
|
|
c2->name = c2->oname;
|
|
c2->oname = 0;
|
|
break;
|
|
match:
|
|
continue;
|
|
}
|
|
if (c2->oname)
|
|
free(c2->oname);
|
|
}
|
|
for(c2 = c1->part; c2 ; c2 = c2->next) {
|
|
if (c2->type == freebsd) {
|
|
c2->flags |= CHUNK_BSD_COMPAT;
|
|
break;
|
|
}
|
|
}
|
|
for(c2 = c1->part; c2 ; c2 = c2->next) {
|
|
if (c2->type == freebsd)
|
|
Fixup_FreeBSD_Names(d,c2);
|
|
if (c2->type == extended)
|
|
Fixup_Extended_Names(d,c2);
|
|
}
|
|
}
|
|
|
|
int
|
|
Create_Chunk(struct disk *d, u_long offset, u_long size, chunk_e type, int subtype, u_long flags)
|
|
{
|
|
int i;
|
|
u_long l;
|
|
|
|
if(!(flags & CHUNK_FORCE_ALL))
|
|
{
|
|
/* Never use the first track */
|
|
if (!offset) {
|
|
offset += d->bios_sect;
|
|
size -= d->bios_sect;
|
|
}
|
|
|
|
/* Always end on cylinder boundary */
|
|
l = (offset+size) % (d->bios_sect * d->bios_hd);
|
|
size -= l;
|
|
}
|
|
|
|
i = Add_Chunk(d,offset,size,"X",type,subtype,flags);
|
|
Fixup_Names(d);
|
|
return i;
|
|
}
|
|
|
|
struct chunk *
|
|
Create_Chunk_DWIM(struct disk *d, struct chunk *parent , u_long size, chunk_e type, int subtype, u_long flags)
|
|
{
|
|
int i;
|
|
struct chunk *c1;
|
|
u_long offset,edge;
|
|
|
|
if (!parent)
|
|
parent = d->chunks;
|
|
for (c1=parent->part; c1 ; c1 = c1->next) {
|
|
if (c1->type != unused) continue;
|
|
if (c1->size < size) continue;
|
|
offset = c1->offset;
|
|
goto found;
|
|
}
|
|
warn("Not enough unused space");
|
|
return 0;
|
|
found:
|
|
if (parent->flags & CHUNK_BAD144) {
|
|
edge = c1->end - d->bios_sect - 127;
|
|
if (offset > edge)
|
|
return 0;
|
|
if (offset + size > edge)
|
|
size = edge - offset + 1;
|
|
}
|
|
i = Add_Chunk(d,offset,size,"X",type,subtype,flags);
|
|
if (i) {
|
|
warn("Didn't cut it");
|
|
return 0;
|
|
}
|
|
Fixup_Names(d);
|
|
for (c1=parent->part; c1 ; c1 = c1->next)
|
|
if (c1->offset == offset)
|
|
return c1;
|
|
err(1,"Serious internal trouble");
|
|
}
|
|
|
|
int
|
|
MakeDev(struct chunk *c1, char *path)
|
|
{
|
|
char *p = c1->name;
|
|
u_long cmaj, bmaj, min, unit, part, slice;
|
|
char buf[BUFSIZ], buf2[BUFSIZ];
|
|
|
|
*buf2 = '\0';
|
|
if (isDebug())
|
|
msgDebug("MakeDev: Called with %s on path %s\n", p, path);
|
|
if (!strcmp(p, "X"))
|
|
return 0;
|
|
|
|
if (!strncmp(p, "wd", 2))
|
|
bmaj = 0, cmaj = 3;
|
|
else if (!strncmp(p, "sd", 2))
|
|
bmaj = 4, cmaj = 13;
|
|
else {
|
|
return 0;
|
|
}
|
|
p += 2;
|
|
if (!isdigit(*p)) {
|
|
msgDebug("MakeDev: Invalid disk unit passed: %s\n", p);
|
|
return 0;
|
|
}
|
|
unit = *p - '0';
|
|
p++;
|
|
if (!*p) {
|
|
slice = 1;
|
|
part = 2;
|
|
goto done;
|
|
}
|
|
else if (isdigit(*p)) {
|
|
unit *= 10;
|
|
unit += (*p - '0');
|
|
p++;
|
|
}
|
|
if (*p != 's') {
|
|
msgDebug("MakeDev: `%s' is not a valid slice delimiter\n", p);
|
|
return 0;
|
|
}
|
|
p++;
|
|
if (!isdigit(*p)) {
|
|
msgDebug("MakeDev: `%s' is an invalid slice number\n", p);
|
|
return 0;
|
|
}
|
|
slice = *p - '0';
|
|
p++;
|
|
if (isdigit(*p)) {
|
|
slice *= 10;
|
|
slice += (*p - '0');
|
|
p++;
|
|
}
|
|
slice = slice + 1;
|
|
if (!*p) {
|
|
part = 2;
|
|
if(c1->type == freebsd)
|
|
sprintf(buf2, "%sc", c1->name);
|
|
goto done;
|
|
}
|
|
if (*p < 'a' || *p > 'h') {
|
|
msgDebug("MakeDev: `%s' is not a valid partition name.\n", p);
|
|
return 0;
|
|
}
|
|
part = *p - 'a';
|
|
done:
|
|
if (isDebug())
|
|
msgDebug("MakeDev: Unit %d, Slice %d, Part %d\n", unit, slice, part);
|
|
if (unit > 32)
|
|
return 0;
|
|
if (slice > 32)
|
|
return 0;
|
|
min = unit * 8 + 65536 * slice + part;
|
|
sprintf(buf, "%s/r%s", path, c1->name);
|
|
unlink(buf);
|
|
if (mknod(buf, S_IFCHR|0640, makedev(cmaj,min)) == -1) {
|
|
msgDebug("mknod of %s returned failure status!\n", buf);
|
|
return 0;
|
|
}
|
|
if (*buf2) {
|
|
sprintf(buf, "%s/r%s", path, buf2);
|
|
unlink(buf);
|
|
if (mknod(buf, S_IFCHR|0640, makedev(cmaj,min)) == -1) {
|
|
msgDebug("mknod of %s returned failure status!\n", buf);
|
|
return 0;
|
|
}
|
|
}
|
|
sprintf(buf, "%s/%s", path, c1->name);
|
|
unlink(buf);
|
|
if (mknod(buf, S_IFBLK|0640, makedev(bmaj,min)) == -1) {
|
|
msgDebug("mknod of %s returned failure status!\n", buf);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
MakeDevChunk(struct chunk *c1, char *path)
|
|
{
|
|
int i;
|
|
|
|
i = MakeDev(c1, path);
|
|
if (c1->next)
|
|
MakeDevChunk(c1->next, path);
|
|
if (c1->part)
|
|
MakeDevChunk(c1->part, path);
|
|
return i;
|
|
}
|
|
|
|
int
|
|
MakeDevDisk(struct disk *d, char *path)
|
|
{
|
|
return MakeDevChunk(d->chunks, path);
|
|
}
|