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-rw-r--r--lib/libdisk/rules.c296
1 files changed, 0 insertions, 296 deletions
diff --git a/lib/libdisk/rules.c b/lib/libdisk/rules.c
deleted file mode 100644
index 1f12f4c..0000000
--- a/lib/libdisk/rules.c
+++ /dev/null
@@ -1,296 +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 <sys/types.h>
-#include <sys/stdint.h>
-#include <sys/disklabel.h>
-#ifdef PC98
-#include <sys/diskpc98.h>
-#else
-#include <sys/diskmbr.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include "libdisk.h"
-
-int
-Track_Aligned(const struct disk *d, daddr_t offset)
-{
-#ifndef __ia64__
- if (!d->bios_sect)
- return 1;
- if (offset % d->bios_sect)
- return 0;
-#endif /* __ia64__ */
- return 1;
-}
-
-daddr_t
-Prev_Track_Aligned(const struct disk *d, daddr_t offset)
-{
-#ifndef __ia64__
- if (!d->bios_sect)
- return offset;
- return (offset / d->bios_sect) * d->bios_sect;
-#else
- return 1;
-#endif
-}
-
-daddr_t
-Next_Track_Aligned(const struct disk *d, daddr_t offset)
-{
-#ifndef __ia64__
- if (!d->bios_sect)
- return offset;
- return Prev_Track_Aligned(d, offset + d->bios_sect-1);
-#else
- return 1;
-#endif
-}
-
-static int
-Cyl_Aligned(const struct disk *d, daddr_t offset)
-{
-#ifndef __ia64__
- if (!d->bios_sect || !d->bios_hd)
- return 1;
- if (offset % (d->bios_sect * d->bios_hd))
- return 0;
-#endif
- return 1;
-}
-
-daddr_t
-Prev_Cyl_Aligned(const struct disk *d, daddr_t offset)
-{
-#ifndef __ia64__
- if (!d->bios_sect || !d->bios_hd)
- return offset;
- return (offset / (d->bios_sect * d->bios_hd)) * d->bios_sect *
- d->bios_hd;
-#else
- return 1;
-#endif
-}
-
-daddr_t
-Next_Cyl_Aligned(const struct disk *d, daddr_t offset)
-{
-#ifndef __ia64__
- if (!d->bios_sect || !d->bios_hd)
- return offset;
- return Prev_Cyl_Aligned(d,offset + (d->bios_sect * d->bios_hd) - 1);
-#else
- return 1;
-#endif
-}
-
-/*
- * Rule#0:
- * Chunks of type 'whole' can have max NDOSPART children.
- * Only one of them can have the "active" flag
- */
-static void
-Rule_000(__unused const struct disk *d, const struct chunk *c, char *msg)
-{
-#ifdef PC98
- int i = 0;
-#else
- int i = 0, j = 0;
-#endif
- struct chunk *c1;
-
- if (c->type != whole)
- return;
- for (c1 = c->part; c1; c1 = c1->next) {
- if (c1->type != unused)
- continue;
-#ifndef PC98
- if (c1->flags & CHUNK_ACTIVE)
- j++;
-#endif
- i++;
- }
- if (i > NDOSPART)
- sprintf(msg + strlen(msg),
- "%d is too many children of the 'whole' chunk."
- " Max is %d\n", i, NDOSPART);
-#ifndef PC98
- if (j > 1)
- sprintf(msg + strlen(msg),
- "Too many active children of 'whole'");
-#endif
-}
-
-/*
- * 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'
- */
-static void
-Rule_001(const struct disk *d, const struct chunk *c, char *msg)
-{
- struct chunk *c1;
-
- if (c->type != whole && c->type != extended)
- return;
- for (c1 = c->part; c1; c1 = c1->next) {
- if (c1->type == unused)
- continue;
- c1->flags |= CHUNK_ALIGN;
-#ifdef PC98
- if (!Cyl_Aligned(d, c1->offset))
-#else
- if (!Track_Aligned(d, c1->offset))
-#endif
- sprintf(msg + strlen(msg),
-#ifdef PC98
- "chunk '%s' [%jd..%jd] does not start"
- " on a cylinder boundary\n",
-#else
- "chunk '%s' [%jd..%jd] does not start"
- " on a track boundary\n",
-#endif
- c1->name, (intmax_t)c1->offset, (intmax_t)c1->end);
- if ((c->type == whole || c->end == c1->end)
- || Cyl_Aligned(d, c1->end + 1))
- ;
- else
- sprintf(msg + strlen(msg),
- "chunk '%s' [%jd..%jd] does not end"
- " on a cylinder boundary\n",
- c1->name, (intmax_t)c1->offset, (intmax_t)c1->end);
- }
-}
-
-/*
- * Rule#2:
- * Max one 'fat' as child of 'whole'
- */
-static void
-Rule_002(__unused const struct disk *d, const 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'
- */
-static void
-Rule_003(__unused const struct disk *d, const 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'
- */
-static void
-Rule_004(__unused const struct disk *d, const struct chunk *c, char *msg)
-{
- int i = 0, k = 0;
- struct chunk *c1;
-
- if (c->type != freebsd)
- return;
-
- for (c1 = c->part; c1; c1 = c1->next) {
- if (c1->type != part)
- continue;
- if (c1->flags & CHUNK_IS_ROOT)
- k++;
- 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");
- }
-}
-
-static void
-Check_Chunk(const struct disk *d, const struct chunk *c, char *msg)
-{
-
- switch (platform) {
- case p_i386:
- case p_amd64:
- 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);
- break;
- case p_pc98:
- Rule_000(d, c, msg);
- Rule_001(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);
- break;
- default:
- break;
- }
-}
-
-char *
-CheckRules(const struct disk *d)
-{
- char msg[BUFSIZ];
-
- *msg = '\0';
- Check_Chunk(d, d->chunks, msg);
- if (*msg)
- return strdup(msg);
- return 0;
-}
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