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e2e2c2 |
/***************************************************************/
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e2e2c2 |
/* perk: PE Resource Kit */
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463997 |
/* Copyright (C) 2015--2021 Z. Gilboa */
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e2e2c2 |
/* Released under GPLv2 and GPLv3; see COPYING.PERK. */
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e2e2c2 |
/***************************************************************/
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e2e2c2 |
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c0fbae |
#include <string.h>
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c0fbae |
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c0fbae |
#include <perk/perk.h>
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d6e02b |
#include <perk/perk_consts.h>
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#include <perk/perk_structs.h>
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#include "perk_endian_impl.h"
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#include "perk_reader_impl.h"
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c0fbae |
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int pe_read_coff_header(const struct pe_raw_coff_image_hdr * p, struct pe_meta_coff_file_hdr * m)
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c0fbae |
{
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da15f0 |
if ((p->cfh_signature[0] != 'P') || (p->cfh_signature[1] != 'E')
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da15f0 |
|| p->cfh_signature[2] || p->cfh_signature[3])
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ff121d |
return PERK_ERR_BAD_COFF_HEADER;
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c0fbae |
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da15f0 |
m->cfh_signature[0] = p->cfh_signature[0];
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da15f0 |
m->cfh_signature[1] = p->cfh_signature[1];
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da15f0 |
m->cfh_signature[2] = p->cfh_signature[2];
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da15f0 |
m->cfh_signature[3] = p->cfh_signature[3];
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c0fbae |
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da15f0 |
m->cfh_machine = pe_read_short(p->cfh_machine);
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da15f0 |
m->cfh_num_of_sections = pe_read_short(p->cfh_num_of_sections);
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c0fbae |
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da15f0 |
m->cfh_time_date_stamp = pe_read_long(p->cfh_time_date_stamp);
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da15f0 |
m->cfh_ptr_to_sym_tbl = pe_read_long(p->cfh_ptr_to_sym_tbl);
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da15f0 |
m->cfh_num_of_syms = pe_read_long(p->cfh_num_of_syms);
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c0fbae |
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da15f0 |
m->cfh_size_of_opt_hdr = pe_read_short(p->cfh_size_of_opt_hdr);
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da15f0 |
m->cfh_characteristics = pe_read_short(p->cfh_characteristics);
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c0fbae |
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c0fbae |
return 0;
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}
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6b694b |
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6b694b |
#define PE_IMAGE_FILE_CHARACTERISTICS (\
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PE_IMAGE_FILE_RELOCS_STRIPPED \
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6b694b |
| PE_IMAGE_FILE_EXECUTABLE_IMAGE \
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6b694b |
| PE_IMAGE_FILE_LINE_NUMS_STRIPPED \
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6b694b |
| PE_IMAGE_FILE_LOCAL_SYMS_STRIPPED \
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6b694b |
| PE_IMAGE_FILE_AGGRESSIVE_WS_TRIM \
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| PE_IMAGE_FILE_LARGE_ADDRESS_AWARE \
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| PE_IMAGE_FILE_RESERVED_CHARACTERISTIC \
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| PE_IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP \
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| PE_IMAGE_FILE_BYTES_REVERSED_LO \
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| PE_IMAGE_FILE_32BIT_MACHINE \
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| PE_IMAGE_FILE_DEBUG_STRIPPED \
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| PE_IMAGE_FILE_NET_RUN_FROM_SWAP \
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| PE_IMAGE_FILE_SYSTEM \
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| PE_IMAGE_FILE_DLL \
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| PE_IMAGE_FILE_UP_SYSTEM_ONLY \
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| PE_IMAGE_FILE_BYTES_REVERSED_HI)
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6b694b |
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6b694b |
int pe_read_object_header(const struct pe_raw_coff_object_hdr * p, struct pe_meta_coff_file_hdr * m)
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6b694b |
{
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6b694b |
if (pe_read_short(p->cfh_size_of_opt_hdr))
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6b694b |
return PERK_ERR_BAD_COFF_HEADER;
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6b694b |
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if (pe_read_short(p->cfh_characteristics) & ~PE_IMAGE_FILE_CHARACTERISTICS)
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return PERK_ERR_BAD_COFF_HEADER;
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6b694b |
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switch (pe_read_short(p->cfh_machine)) {
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6b694b |
case PE_IMAGE_FILE_MACHINE_I386:
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case PE_IMAGE_FILE_MACHINE_R4000:
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case PE_IMAGE_FILE_MACHINE_WCEMIPSV2:
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case PE_IMAGE_FILE_MACHINE_SH3:
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case PE_IMAGE_FILE_MACHINE_SH3DSP:
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case PE_IMAGE_FILE_MACHINE_SH4:
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case PE_IMAGE_FILE_MACHINE_SH5:
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6b694b |
case PE_IMAGE_FILE_MACHINE_ARM:
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6b694b |
case PE_IMAGE_FILE_MACHINE_THUMB:
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6b694b |
case PE_IMAGE_FILE_MACHINE_ARMV7:
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6b694b |
case PE_IMAGE_FILE_MACHINE_AM33:
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6b694b |
case PE_IMAGE_FILE_MACHINE_POWERPC:
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6b694b |
case PE_IMAGE_FILE_MACHINE_POWERPCFP:
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6b694b |
case PE_IMAGE_FILE_MACHINE_IA64:
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6b694b |
case PE_IMAGE_FILE_MACHINE_MIPS16:
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6b694b |
case PE_IMAGE_FILE_MACHINE_MIPSFPU:
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6b694b |
case PE_IMAGE_FILE_MACHINE_MIPSFPU16:
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6b694b |
case PE_IMAGE_FILE_MACHINE_EBC:
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6b694b |
case PE_IMAGE_FILE_MACHINE_AMD64:
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case PE_IMAGE_FILE_MACHINE_M32R:
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6b694b |
break;
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6b694b |
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6b694b |
default:
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6b694b |
return PERK_ERR_BAD_COFF_HEADER;
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}
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6b694b |
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m->cfh_signature[0] = 0;
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m->cfh_signature[1] = 0;
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m->cfh_signature[2] = 0;
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m->cfh_signature[3] = 0;
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m->cfh_machine = pe_read_short(p->cfh_machine);
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m->cfh_num_of_sections = pe_read_short(p->cfh_num_of_sections);
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m->cfh_time_date_stamp = pe_read_long(p->cfh_time_date_stamp);
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m->cfh_ptr_to_sym_tbl = pe_read_long(p->cfh_ptr_to_sym_tbl);
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m->cfh_num_of_syms = pe_read_long(p->cfh_num_of_syms);
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m->cfh_size_of_opt_hdr = pe_read_short(p->cfh_size_of_opt_hdr);
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6b694b |
m->cfh_characteristics = pe_read_short(p->cfh_characteristics);
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6b694b |
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6b694b |
return 0;
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6b694b |
}
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