diff options
Diffstat (limited to 'release/libdisk/rules.c')
| -rw-r--r-- | release/libdisk/rules.c | 76 |
1 files changed, 65 insertions, 11 deletions
diff --git a/release/libdisk/rules.c b/release/libdisk/rules.c index 9a53b4ef3bd2..ef50415e15ba 100644 --- a/release/libdisk/rules.c +++ b/release/libdisk/rules.c @@ -6,7 +6,7 @@ * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp * ---------------------------------------------------------------------------- * - * $Id: rules.c,v 1.2 1995/04/29 04:00:56 phk Exp $ + * $Id: rules.c,v 1.3 1995/04/29 07:21:12 phk Exp $ * */ @@ -21,7 +21,7 @@ #include "libdisk.h" int -Aligned(struct disk *d, u_long offset) +Track_Aligned(struct disk *d, u_long offset) { if (!d->bios_sect) return 1; @@ -31,7 +31,7 @@ Aligned(struct disk *d, u_long offset) } u_long -Prev_Aligned(struct disk *d, u_long offset) +Prev_Track_Aligned(struct disk *d, u_long offset) { if (!d->bios_sect) return offset; @@ -39,11 +39,37 @@ Prev_Aligned(struct disk *d, u_long offset) } u_long -Next_Aligned(struct disk *d, u_long offset) +Next_Track_Aligned(struct disk *d, u_long offset) { if (!d->bios_sect) return offset; - return Prev_Aligned(d,offset + d->bios_sect); + return Prev_Track_Aligned(d,offset + d->bios_sect); +} + +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)); } /* @@ -58,9 +84,13 @@ Rule_000(struct disk *d, struct chunk *c, char *msg) if (c->type != whole) return; - for (i=0, c1=c->part; c1; c1=c1->next) - if (c1->type != unused) - i++; + for (i=0, c1=c->part; c1; c1=c1->next) { + if (c1->type != reserved) + continue; + if (c1->type != reserved) + continue; + i++; + } if (i <= NDOSPART) return; sprintf(msg+strlen(msg), @@ -86,13 +116,13 @@ Rule_001(struct disk *d, struct chunk *c, char *msg) continue; if (c1->type == unused) continue; - if (!Aligned(d,c1->offset)) + 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->end != c1->end && !Aligned(d,c1->end+1)) + if (c->end != c1->end && !Cyl_Aligned(d,c1->end+1)) sprintf(msg+strlen(msg), - "chunk '%s' [%ld..%ld] does not end on a track boundary\n", + "chunk '%s' [%ld..%ld] does not end on a cylinder boundary\n", c1->name,c1->offset,c1->end); } } @@ -143,6 +173,29 @@ Rule_003(struct disk *d, struct chunk *c, char *msg) } } +/* + * Rule#4: + * Max seven 'part' as children of 'freebsd' + */ +void +Rule_004(struct disk *d, struct chunk *c, char *msg) +{ + int i; + struct chunk *c1; + + if (c->type != freebsd) + return; + for (i=0, c1=c->part; c1; c1=c1->next) { + if (c1->type != part) + continue; + i++; + } + if (i > 7) { + sprintf(msg+strlen(msg), + "Max seven 'part' allowed as child of 'freebsd'\n"); + } +} + void Check_Chunk(struct disk *d, struct chunk *c, char *msg) { @@ -150,6 +203,7 @@ Check_Chunk(struct disk *d, struct chunk *c, char *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) |