phantom_disk_partition_t *select_phantom_partition(void)
{
if(n_phantom_fs_partitions == 0)
panic("no Phantom disk");
if(n_phantom_fs_partitions == 1)
{
assert( phantom_fs_partitions[0] );
char pname[128];
partGetName( phantom_fs_partitions[0], pname, sizeof(pname) );
SHOW_FLOW( 0, "Just one Phantom disks found (%s)", pname);
return phantom_fs_partitions[0];
}
printf("Select Phantom disk to boot:\n");
int i;
for( i = 0; i < n_phantom_fs_partitions; i++ )
{
phantom_disk_partition_t *p = phantom_fs_partitions[i];
if(p)
{
char pname[128];
partGetName( p, pname, sizeof(pname) );
printf("%2d: %s\n", i, pname );
}
}
do {
printf("Press digit (0-%d): \n", n_phantom_fs_partitions-1 );
char c = getchar();
if( c < '0' || c > '9' )
continue;
int n = c-'0';
if( (n > MAX_PFS_PARTS) || (n < 0) )
continue;
phantom_disk_partition_t *p = phantom_fs_partitions[n];
if( !p )
continue;
return p;
} while(1);
}
//! Get full name for partition (incl subparts)
static errno_t doPartGetName( phantom_disk_partition_t *p, char *buf, size_t bufsz )
{
if( p->base )
partGetName( p->base, buf, bufsz );
if( strlcat( buf, "/", bufsz ) >= bufsz ) return ENOMEM;
if( strlcat( buf, p->name, bufsz ) >= bufsz ) return ENOMEM;
return 0;
}
errno_t lookup_fs(phantom_disk_partition_t *p)
{
char pname[128];
partGetName( p, pname, sizeof(pname) );
SHOW_INFO( 0, "Look for filesystems on partition %s", pname );
unsigned int i;
for( i = 0; i < sizeof(fs_drivers)/sizeof(fs_probe_t); i++ )
{
fs_probe_t *fp = &fs_drivers[i];
SHOW_INFO( 0, "probe %s fs on %s", fp->name, pname );
errno_t ret = fp->probe_f( p );
if( ret ) continue;
SHOW_INFO( 0, "%s file sysem found on partition %s", fp->name, pname );
if(!fp->use_f)
{
SHOW_ERROR( 0, "%s file sysem is not implemented yet", fp->name );
continue;
}
#if FS_START_THREAD
// BUG HACK - activate phantom fs syncronously, or else we will die attempting to use it
if(fp->use_f == fs_use_phantom)
fp->use_f( p );
else
hal_start_kernel_thread_arg( (void (*)(void *))fp->use_f, p );
#else
ret = fp->use_f( p );
if( ret )
{
SHOW_ERROR( 0, "%s file sysem driver rejected partition %s", fp->name, pname );
continue;
}
SHOW_INFO( 0, "%s file sysem driver occupies partition %s", fp->name, pname );
#endif
return 0;
}
return EINVAL;
}
errno_t fs_use_phantom(phantom_disk_partition_t *p)
{
assert( p->flags | PART_FLAG_IS_PHANTOM_FSSB );
char pname[128];
partGetName( p, pname, sizeof(pname) );
if(n_phantom_fs_partitions < MAX_PFS_PARTS)
{
phantom_fs_partitions[n_phantom_fs_partitions++] = p;
return 0;
}
else
{
SHOW_ERROR( 0, "Too many Phantom disks, skip %s", pname);
return EMFILE;
}
}
void print_partition(phantom_disk_partition_t *p)
{
if( p == 0 )
{
printf("attempt to print null Disk Partition\n");
return;
}
char pname[128];
if( partGetName( p, pname, sizeof(pname) ) )
{
printf("Disk Partition ?? (%s)\n", p->label );
return;
}
long sz = p->block_size; sz *= p->size; sz /= 1024;
char *un = "Kb";
if( sz > 1024*10 ) { un = "Mb"; sz /= 1024; }
if( sz > 1024*10 ) { un = "Gb"; sz /= 1024; }
printf("Disk Partition %s (%s), %ld %d, flags %b\n", pname, p->label, sz, un, p->flags, "\020\1PhantomPartType\2PhantomFS\5Bootable\6Divided\7IsDisk" );
}
void dump_partition(phantom_disk_partition_t *p)
{
if( p == 0 )
{
printf("attempt to dump null Disk Partition\n");
return;
}
char pname[128];
if( partGetName( p, pname, sizeof(pname) ) )
{
printf("Disk Partition ?? (%s)\n", p->label );
return;
}
printf("Disk Partition %s (%s)\n", pname, p->label );
printf(" - type %d%s\n", p->type, p->type == PHANTOM_PARTITION_TYPE_ID ? " (phantom)" : "" );
printf(" - flags %b\n", p->flags, "\020\1PhantomPartType\2PhantomFS\5Bootable\6Divided\7IsDisk" );
printf(" - blksz %d, start %ld, size %ld\n", p->block_size, p->shift, p->size );
printf(" - %s base, %s specific\n", p->base ? "has" : "no", p->specific ? "has" : "no" );
}
