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/* ----------------------------------------------------------------------- *
*
* Copyright 2009 Pierre-Alexandre Meyer - All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall
* be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* -----------------------------------------------------------------------
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <disk/geom.h>
#include <disk/read.h>
#include <disk/error.h>
#include <disk/swsusp.h>
#include "hdt-cli.h"
#include "hdt-common.h"
#include "hdt-util.h"
static void process_br(struct driveinfo *drive_info, struct part_entry *ptab, int start, struct part_entry *ptab_root);
/**
* show_partition_information - print information about a partition
* @ptab: part_entry describing the partition
* @i: Partition number (UI purposes only)
* @ptab_root: part_entry describing the root partition (extended only)
* @drive_info: driveinfo struct describing the drive on which the partition
* is
*
* Note on offsets (from hpa, see chain.c32):
*
* To make things extra confusing: data partition offsets are relative to where
* the data partition record is stored, whereas extended partition offsets
* are relative to the beginning of the extended partition all the way back
* at the MBR... but still not absolute!
**/
static void show_partition_information(struct part_entry *ptab, int i,
struct part_entry *ptab_root,
struct driveinfo *drive_info)
{
char size[8];
char *parttype;
int error = 0;
char *error_buffer;
int start;
if (ptab_root)
start = ptab->start_lba + ptab_root->start_lba;
else
start = ptab->start_lba;
if (ptab->length > 0)
sectors_to_size(ptab->length, size);
else
memset(size, 0, sizeof size);
get_label(ptab->ostype, &parttype);
more_printf(" %d %s %8d %8d %s %02X %s",
i, (ptab->active_flag == 0x80) ? " x " : " ",
start,
start + ptab->length,
size,
ptab->ostype, parttype);
/* Extra info */
if (ptab->ostype == 0x82 && swsusp_check(drive_info, ptab, &error)) {
more_printf("%s", " (Swsusp sig. detected)");
} else if (error) {
get_error(error, &error_buffer);
more_printf("%s\n", error_buffer);
free(error_buffer);
}
more_printf("\n");
free(parttype);
}
/**
* process_ebr - print information for partitions contained in an ebr
* @drive_info: driveinfo struct describing the drive
* @ptab_root: part_entry struct describing the root partition (pointing to the ebr)
* @ebr_seen: Number of ebr processed (UI purposes only)
**/
static void process_ebr(struct driveinfo *drive_info, struct part_entry *ptab_root,
int ebr_seen)
{
int error;
char *error_buffer;
/* The ebr is located at the first sector of the extended partition */
char* ebr = read_sectors(drive_info, ptab_root->start_lba, 1, &error);
if (!ebr) {
more_printf("Unable to read the ebr:\n");
get_error(error, &error_buffer);
more_printf("%s\n", error_buffer);
free(error_buffer);
return;
}
struct part_entry *ptab_child = (struct part_entry *)(ebr + PARTITION_TABLES_OFFSET);
return process_br(drive_info, ptab_child, ebr_seen, ptab_root);
}
/**
* process_br - print information for partitions contained in an {m,e}br
* @drive_info: driveinfo struct describing the drive
* @ptab_root: part_entry struct describing the root partition
* (pointing to the {m,e}br)
* @ebr_seen: Number of ebr processed (UI purposes only)
**/
static void process_br(struct driveinfo *drive_info, struct part_entry *ptab,
int ebr_seen, struct part_entry *ptab_root)
{
for (int i = 0; i < 4; i++) {
if (ptab[i].ostype) {
show_partition_information(&ptab[i],
ebr_seen * 4 + i + 1,
ptab_root,
drive_info);
/* 3 types for extended partitions */
if ( ptab[i].ostype == 0x05 ||
ptab[i].ostype == 0x0f ||
ptab[i].ostype == 0x85)
process_ebr(drive_info, &ptab[i], ebr_seen + 1);
}
}
}
void main_show_disk(int argc __unused, char **argv __unused,
struct s_hardware *hardware)
{
int i = -1;
int error;
char *error_buffer;
detect_disks(hardware);
for (int drive = 0x80; drive < 0xff; drive++) {
i++;
if (!hardware->disk_info[i].cbios)
continue; /* Invalid geometry */
struct driveinfo *d = &hardware->disk_info[i];
more_printf("DISK 0x%X:\n", d->disk);
more_printf(" C/H/S: %d heads, %d cylinders\n",
d->legacy_max_head + 1, d->legacy_max_cylinder + 1);
more_printf(" %d sectors/track, %d drives\n",
d->legacy_sectors_per_track, d->legacy_max_drive);
more_printf(" EDD: ebios=%d, EDD version: %X\n",
d->ebios, d->edd_version);
more_printf(" %d heads, %d cylinders\n",
(int) d->edd_params.heads, (int) d->edd_params.cylinders);
more_printf(" %d sectors, %d bytes/sector, %d sectors/track\n",
(int) d->edd_params.sectors, (int) d->edd_params.bytes_per_sector,
(int) d->edd_params.sectors_per_track);
more_printf(" Host bus: %s, Interface type: %s\n\n",
d->edd_params.host_bus_type, d->edd_params.interface_type);
char *mbr = read_mbr(d->disk, &error);
if (!mbr) {
more_printf("Unable to read the mbr.");
get_error(error, &error_buffer);
more_printf("%s\n", error_buffer);
free(error_buffer);
continue;
}
more_printf(" # Boot Start End Size Id Type\n");
struct part_entry *ptab = (struct part_entry *)(mbr + PARTITION_TABLES_OFFSET);
process_br(d, ptab, 0, NULL);
}
}
struct cli_module_descr disk_show_modules = {
.modules = NULL,
.default_callback = main_show_disk,
};
struct cli_mode_descr disk_mode = {
.mode = DISK_MODE,
.name = CLI_DISK,
.default_modules = NULL,
.show_modules = &disk_show_modules,
.set_modules = NULL,
};
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