1f675b053a
Decide which crash notifier (32bit or 64bit) to inject, based on the current memory mode instead of the current CPU mode. Otherwise, in the case of a 32bit loader running on a 64bit operating system, the wrong notifier code will be injected.
76 lines
3.1 KiB
C
76 lines
3.1 KiB
C
/*
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Copyright (C) 2017 Sergej Schumilo
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This file is part of QEMU-PT (kAFL).
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QEMU-PT is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QEMU-PT 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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You should have received a copy of the GNU General Public License
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along with QEMU-PT. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MEMORY_ACCESS_H
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#define MEMORY_ACCESS_H
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#include "qemu/osdep.h"
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#include <linux/kvm.h>
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#include "qemu-common.h"
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#include "sysemu/kvm_int.h"
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#include "nyx/types.h"
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#define MEM_SPLIT_START 0x0C0000000
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#define MEM_SPLIT_END 0x100000000
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/* i386 pc_piix low_mem address translation */
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#define address_to_ram_offset(offset) (offset >= MEM_SPLIT_END ? (offset - MEM_SPLIT_END) + MEM_SPLIT_START : offset)
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#define ram_offset_to_address(offset) (offset >= MEM_SPLIT_START ? (offset - MEM_SPLIT_START) + MEM_SPLIT_END : offset)
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mem_mode_t get_current_mem_mode(CPUState *cpu);
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uint64_t get_paging_phys_addr(CPUState *cpu, uint64_t cr3, uint64_t addr);
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bool read_physical_memory(uint64_t address, uint8_t* data, uint32_t size, CPUState *cpu);
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bool write_physical_memory(uint64_t address, uint8_t* data, uint32_t size, CPUState *cpu);
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bool remap_payload_slot(uint64_t phys_addr, uint32_t slot, CPUState *cpu);
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bool remap_payload_slot_protected(uint64_t phys_addr, uint32_t slot, CPUState *cpu);
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bool remap_payload_buffer(uint64_t virt_guest_addr, CPUState *cpu);
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bool remap_slots(uint64_t addr, uint32_t slots, CPUState *cpu, int fd, uint64_t shm_size, bool virtual, uint64_t cr3);
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bool remap_slot(uint64_t addr, uint32_t slot, CPUState *cpu, int fd, uint64_t shm_size, bool virtual, uint64_t cr3);
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bool read_virtual_memory_cr3(uint64_t address, uint8_t* data, uint32_t size, CPUState *cpu, uint64_t cr3);
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bool read_virtual_memory(uint64_t address, uint8_t* data, uint32_t size, CPUState *cpu);
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bool write_virtual_memory(uint64_t address, uint8_t* data, uint32_t size, CPUState *cpu);
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void hexdump_virtual_memory(uint64_t address, uint32_t size, CPUState *cpu);
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bool is_addr_mapped(uint64_t address, CPUState *cpu);
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bool is_addr_mapped_cr3(uint64_t address, CPUState *cpu, uint64_t cr3);
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int insert_breakpoint(CPUState *cpu, uint64_t addr, uint64_t len);
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int remove_breakpoint(CPUState *cpu, uint64_t addr, uint64_t len);
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void remove_all_breakpoints(CPUState *cpu);
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uint64_t disassemble_at_rip(int fd, uint64_t address, CPUState *cpu, uint64_t cr3);
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bool dump_page_cr3_snapshot(uint64_t address, uint8_t* data, CPUState *cpu, uint64_t cr3);
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bool dump_page_cr3_ht(uint64_t address, uint8_t* data, CPUState *cpu, uint64_t cr3);
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bool is_addr_mapped_cr3_snapshot(uint64_t address, CPUState *cpu, uint64_t cr3);
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void print_48_paging2(uint64_t cr3);
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bool dump_page_ht(uint64_t address, uint8_t* data, CPUState *cpu);
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void resize_shared_memory(uint32_t new_size, uint32_t* shm_size, void** shm_ptr, int fd);
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#endif
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