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-rw-r--r--lib/libdisk/rules.c316
1 files changed, 0 insertions, 316 deletions
diff --git a/lib/libdisk/rules.c b/lib/libdisk/rules.c
deleted file mode 100644
index 1ea9ca85b162..000000000000
--- a/lib/libdisk/rules.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * ----------------------------------------------------------------------------
- * "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: rules.c,v 1.10.2.1 1995/06/03 08:40:33 jkh Exp $
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/diskslice.h>
-#include <sys/disklabel.h>
-#include <err.h>
-#include "libdisk.h"
-
-int
-Track_Aligned(struct disk *d, u_long offset)
-{
- if (!d->bios_sect)
- return 1;
- if (offset % d->bios_sect)
- return 0;
- return 1;
-}
-
-u_long
-Prev_Track_Aligned(struct disk *d, u_long offset)
-{
- if (!d->bios_sect)
- return offset;
- return (offset / d->bios_sect) * d->bios_sect;
-}
-
-u_long
-Next_Track_Aligned(struct disk *d, u_long offset)
-{
- if (!d->bios_sect)
- return offset;
- return Prev_Track_Aligned(d,offset + d->bios_sect-1);
-}
-
-int
-Cyl_Aligned(struct disk *d, u_long offset)
-{
- if (!d->bios_sect || !d->bios_hd)
- return 1;
- if (offset % (d->bios_sect * d->bios_hd))
- return 0;
- return 1;
-}
-
-u_long
-Prev_Cyl_Aligned(struct disk *d, u_long offset)
-{
- if (!d->bios_sect || !d->bios_hd)
- return offset;
- return (offset / (d->bios_sect*d->bios_hd)) * d->bios_sect * d->bios_hd;
-}
-
-u_long
-Next_Cyl_Aligned(struct disk *d, u_long offset)
-{
- if (!d->bios_sect || !d->bios_hd)
- return offset;
- return Prev_Cyl_Aligned(d,offset + (d->bios_sect * d->bios_hd)-1);
-}
-
-/*
- * Rule#0:
- * Chunks of type 'whole' can have max NDOSPART children.
- * Only one of them can have the "active" flag
- */
-void
-Rule_000(struct disk *d, struct chunk *c, char *msg)
-{
- int i=0,j=0;
- struct chunk *c1;
-
- if (c->type != whole)
- return;
- for (c1=c->part; c1; c1=c1->next) {
- if (c1->type != unused) continue;
- if (c1->flags & CHUNK_ACTIVE)
- j++;
- i++;
- }
- if (i > NDOSPART)
- sprintf(msg+strlen(msg),
- "%d is too many children of the 'whole' chunk. Max is %d\n",
- i, NDOSPART);
- if (j > 1)
- sprintf(msg+strlen(msg),
- "Too many active children of 'whole'");
-}
-
-/*
- * Rule#1:
- * All children of 'whole' and 'extended' must be track-aligned.
- * Exception: the end can be unaligned if it matches the end of 'whole'
- */
-void
-Rule_001(struct disk *d, struct chunk *c, char *msg)
-{
- int i;
- struct chunk *c1;
-
- if (c->type != whole && c->type != extended)
- return;
- for (i=0, c1=c->part; c1; c1=c1->next) {
- if (c1->type == unused) continue;
- c1->flags |= CHUNK_ALIGN;
- if (!Track_Aligned(d,c1->offset))
- sprintf(msg+strlen(msg),
- "chunk '%s' [%ld..%ld] does not start on a track boundary\n",
- c1->name,c1->offset,c1->end);
- if ((c->type == whole || c->end == c1->end)
- || Cyl_Aligned(d,c1->end+1))
- ;
- else
- sprintf(msg+strlen(msg),
- "chunk '%s' [%ld..%ld] does not end on a cylinder boundary\n",
- c1->name,c1->offset,c1->end);
- }
-}
-
-/*
- * Rule#2:
- * Max one 'fat' as child of 'whole'
- */
-void
-Rule_002(struct disk *d, struct chunk *c, char *msg)
-{
- int i;
- struct chunk *c1;
-
- if (c->type != whole)
- return;
- for (i=0, c1=c->part; c1; c1=c1->next) {
- if (c1->type != fat)
- continue;
- i++;
- }
- if (i > 1) {
- sprintf(msg+strlen(msg),
- "Max one 'fat' allowed as child of 'whole'\n");
- }
-}
-
-/*
- * Rule#3:
- * Max one extended as child of 'whole'
- */
-void
-Rule_003(struct disk *d, struct chunk *c, char *msg)
-{
- int i;
- struct chunk *c1;
-
- if (c->type != whole)
- return;
- for (i=0, c1=c->part; c1; c1=c1->next) {
- if (c1->type != extended)
- continue;
- i++;
- }
- if (i > 1) {
- sprintf(msg+strlen(msg),
- "Max one 'extended' allowed as child of 'whole'\n");
- }
-}
-
-/*
- * Rule#4:
- * Max seven 'part' as children of 'freebsd'
- * Max one CHUNK_IS_ROOT child per 'freebsd'
- * If Bad144, space for table must exist.
- * If Bad144 & root, bad144 table must be inside 1024
- */
-void
-Rule_004(struct disk *d, struct chunk *c, char *msg)
-{
- int i=0,k=0;
- struct chunk *c1;
- u_long l;
-
- if (c->type != freebsd)
- return;
-
- if (c->flags & CHUNK_BAD144) {
- l = c->end - 127 - d->bios_sect + 1;
- for (c1=c->part; c1; c1=c1->next) {
- if (c1->end < l || c1->type == unused)
- continue;
- sprintf(msg+strlen(msg),
- "Blocks %lu to %lu are needed for bad144 information, but isn't unused.\n",
- l, c->end);
- break;
- }
- if (c->flags & CHUNK_PAST_1024) {
- for (c1=c->part; c1; c1=c1->next) {
- if (c1->flags & CHUNK_IS_ROOT) {
- sprintf(msg+strlen(msg),
- "You have assigned root to a slice which uses bad144, and\n extends past the first 1023 cylinders, and thus cannot be booted from.\n");
- break;
- }
- }
- }
- }
-
- for (c1=c->part; c1; c1=c1->next) {
- if (c1->type != part)
- continue;
- if (c1->flags & CHUNK_IS_ROOT) {
- k++;
- if (c1->flags & CHUNK_PAST_1024)
- sprintf(msg+strlen(msg),
- "Root filesystem extends past cylinder 1024, and cannot be booted from\n");
- }
- i++;
- }
- if (i > 7) {
- sprintf(msg+strlen(msg),
- "Max seven partitions per freebsd slice\n");
- }
- if (k > 1) {
- sprintf(msg+strlen(msg),
- "Max one root partition child per freebsd slice\n");
- }
-}
-
-void
-Check_Chunk(struct disk *d, struct chunk *c, char *msg)
-{
- Rule_000(d,c,msg);
- Rule_001(d,c,msg);
- Rule_002(d,c,msg);
- Rule_003(d,c,msg);
- Rule_004(d,c,msg);
- if (c->part)
- Check_Chunk(d,c->part,msg);
- if (c->next)
- Check_Chunk(d,c->next,msg);
-
- if (c->end >= 1024*d->bios_hd*d->bios_sect)
- c->flags |= CHUNK_PAST_1024;
- else
- c->flags &= ~CHUNK_PAST_1024;
-}
-
-char *
-CheckRules(struct disk *d)
-{
- char msg[BUFSIZ];
-
- *msg = '\0';
- Check_Chunk(d,d->chunks,msg);
- if (*msg)
- return strdup(msg);
- return 0;
-}
-
-char *
-ChunkCanBeRoot(struct chunk *c)
-{
- struct chunk *c1;
- struct disk *d = c->disk;
- char msg[BUFSIZ];
-
- *msg = '\0';
- if (c->flags & CHUNK_PAST_1024) {
- strcat(msg,
-"The root partition must end before cylinder 1024 seen from\n");
- strcat(msg,
-"the BIOS' point of view, or it cannot be booted from.\n");
- return strdup(msg);
- }
- for (c1=d->chunks->part;;) {
- for (; c1; c1=c1->next)
- if (c1->offset <= c->offset && c1->end >= c->end)
- break;
- if (!c1) {
- strcat(msg,
-"Internal trouble, cannot find this chunk in the chunk-tree\n");
- return strdup(msg);
- }
- if (c1->type == freebsd)
- break;
- c1 = c1->part;
- }
-
- if (c1->type != freebsd) {
- strcat(msg,
-"The root partition must be in a FreeBSD slice, otherwise\n");
- strcat(msg,
-"the kernel cannot be booted from it\n");
- return strdup(msg);
- }
-
- if ((c1->flags & CHUNK_BAD144) && (c1->flags & CHUNK_PAST_1024)) {
- strcat(msg,
-"This partition is unsuitable for root, because the FreeBSD slice\n");
- strcat(msg,
-"it is inside has bad144 enabled, but the badblock data lives past\n");
- strcat(msg,
-"the 1024th cylinder, and the bootblocks cannot get to it there.\n");
- return strdup(msg);
- }
- return NULL;
-}