118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/*
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* Copyright (C) 2014-2022 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
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*
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* Authors: Kevin Lin <klin@sourcefire.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#ifndef __APM_H
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#define __APM_H
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#if HAVE_CONFIG_H
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#include "clamav-config.h"
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#endif
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#include "clamav.h"
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#include "others.h"
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#define APM_FALLBACK_SECTOR_SIZE 512
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#define APM_PTABLE_BLOCK 1
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#define APM_STRUCT_SIZE 512
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#define DDM_SIGNATURE 0x4552 /* driver description signature ('ER') */
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#define APM_SIGNATURE 0x504D /* partition map signature ('PM') */
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/* partition flags */
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#define VALID 0x00000001
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#define ALLOCATED 0x00000002
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#define IN_USE 0x00000004
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#define BOOTABLE 0x00000008
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#define READABLE 0x00000010
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#define WRITEABLE 0x00000020
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#define POSINDEPENDENT 0x00000040
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/* end of partition flags */
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#ifndef HAVE_ATTRIB_PACKED
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#define __attribute__(x)
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#endif
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#ifdef HAVE_PRAGMA_PACK
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#pragma pack(1)
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#endif
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#ifdef HAVE_PRAGMA_PACK_HPPA
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#pragma pack 1
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#endif
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/* 8-byte driver description entry for ddmap, big endian */
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struct apm_driver_desc_entry {
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uint32_t block __attribute__((packed));
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uint16_t size __attribute__((packed));
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uint16_t type __attribute__((packed));
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}; // NOTE may need to be renamed
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/* 512(82)-byte driver descriptor map (Block0), big endian */
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struct apm_driver_desc_map {
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uint16_t signature __attribute__((packed));
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uint16_t blockSize __attribute__((packed));
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uint32_t blockCount __attribute__((packed));
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uint16_t deviceType __attribute__((packed));
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uint16_t deviceID __attribute__((packed));
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uint32_t driverData __attribute__((packed));
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uint16_t driverCount __attribute__((packed));
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struct apm_driver_desc_entry driverTable[8];
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/* zeroes fill remainder of sector (430 bytes in 512 sector size) */
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};
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/* 512(136)-byte partition info, big endian;
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* both the partition table and the individual partitions use this
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* struct to describe their details
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*/
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struct apm_partition_info {
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uint16_t signature __attribute__((packed));
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uint16_t reserved __attribute__((packed));
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uint32_t numPartitions __attribute__((packed));
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uint32_t pBlockStart __attribute__((packed));
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uint32_t pBlockCount __attribute__((packed));
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uint8_t name[32];
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uint8_t type[32];
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uint32_t lBlockStart __attribute__((packed));
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uint32_t lBlockCount __attribute__((packed));
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uint32_t flags __attribute__((packed));
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uint32_t bootBlockStart __attribute__((packed));
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uint32_t bootSize __attribute__((packed));
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uint32_t bootAddr __attribute__((packed));
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uint32_t bootAddr2 __attribute__((packed));
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uint32_t bootEntry __attribute__((packed));
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uint32_t bootEntry2 __attribute__((packed));
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uint32_t bootChecksum __attribute__((packed));
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uint8_t processor[16];
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/* zeroes fill remainder of sector (376 bytes in 512 sector size) */
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};
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#ifdef HAVE_PRAGMA_PACK
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#pragma pack()
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#endif
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#ifdef HAVE_PRAGMA_PACK_HPPA
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#pragma pack
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#endif
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cl_error_t cli_scanapm(cli_ctx *ctx);
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#endif
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