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140 lines
3.1 KiB
C
140 lines
3.1 KiB
C
/********************************************************************************
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* libemu
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*
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* - x86 shellcode emulation -
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*
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*
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* Copyright (C) 2007 Paul Baecher & Markus Koetter
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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, MA 02110-1301, USA.
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*
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*
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* contact nepenthesdev@users.sourceforge.net
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*
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*******************************************************************************/
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#ifndef HAVE_EMU_CPU_H
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#define HAVE_EMU_CPU_H
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#include <inttypes.h>
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#include <endian.h>
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#ifndef bcopy
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#define bcopy(a,b,c) memcpy(b,a,c)
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#endif
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struct emu;
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struct emu_cpu;
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enum emu_reg32 {
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eax = 0, ecx, edx, ebx, esp, ebp, esi, edi
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};
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enum emu_reg16
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{
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ax = 0,/* eax */
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cx, /* ecx */
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dx, /* edx */
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bx, /* ebx */
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sp, /* esp */
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bp, /* ebp */
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si, /* esp */
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di /* edi */
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};
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enum emu_reg8
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{
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al=0, /* eax */
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cl, /* ecx */
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dl, /* edx */
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bl, /* ebx */
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ah, /* eax */
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ch, /* ecx */
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dh, /* edx */
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bh /* ebx */
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct emu_cpu *emu_cpu_new(struct emu *e);
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uint32_t emu_cpu_reg32_get(struct emu_cpu *cpu_p, enum emu_reg32 reg);
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void emu_cpu_reg32_set(struct emu_cpu *cpu_p, enum emu_reg32 reg, uint32_t val);
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uint16_t emu_cpu_reg16_get(struct emu_cpu *cpu_p, enum emu_reg16 reg);
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void emu_cpu_reg16_set(struct emu_cpu *cpu_p, enum emu_reg16 reg, uint16_t val);
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uint8_t emu_cpu_reg8_get(struct emu_cpu *cpu_p, enum emu_reg8 reg);
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void emu_cpu_reg8_set(struct emu_cpu *cpu_p, enum emu_reg8 reg, uint8_t val);
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uint32_t emu_cpu_eflags_get(struct emu_cpu *c);
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void emu_cpu_eflags_set(struct emu_cpu *c, uint32_t val);
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/**
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* Set the cpu's EIP
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*
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* @param c the cpu
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* @param eip eip
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*/
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void emu_cpu_eip_set(struct emu_cpu *c, uint32_t eip);
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/**
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* get the cpu's EIP
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*
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* @param c the cpu
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*
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* @return EIP
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*/
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uint32_t emu_cpu_eip_get(struct emu_cpu *c);
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/**
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* parse a instruction at EIP
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*
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* @param c the cpu
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*
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* @return on success: 0
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* on errror : -1, check emu_errno and emu_strerror
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*/
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int32_t emu_cpu_parse(struct emu_cpu *c);
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/**
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* step the last instruction
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*
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* @param c the cpu
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*
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* @return on success: 0
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* on errror : -1, check emu_errno and emu_strerror
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*/
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int32_t emu_cpu_step(struct emu_cpu *c);
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int32_t emu_cpu_run(struct emu_cpu *c);
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void emu_cpu_free(struct emu_cpu *c);
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void emu_cpu_debug_print(struct emu_cpu *c);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAVEEMU_CPU_H */
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