127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2020 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "sysemu/sysemu.h"
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#ifdef CONFIG_SDL
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#if defined(__APPLE__) || defined(main)
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#include <SDL.h>
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static int qemu_main(int argc, char **argv, char **envp);
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int main(int argc, char **argv)
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{
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return qemu_main(argc, argv, NULL);
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}
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#undef main
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#define main qemu_main
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#endif
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#endif /* CONFIG_SDL */
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#ifdef CONFIG_COCOA
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#undef main
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#define main qemu_main
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#endif /* CONFIG_COCOA */
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/* Begin LibAFL instrumentation */
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#include "sysemu/runstate.h"
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#include "migration/snapshot.h"
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#include "hw/core/cpu.h"
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#include "qapi/error.h"
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#include "exec/memory.h"
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void libafl_qemu_main_loop( void );
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void libafl_qemu_sys_init(int argc, char **argv, char **envp);
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void libafl_qemu_cleanup( void );
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void libafl_qemu_sys_init(int argc, char **argv, char **envp) { qemu_init(argc, argv, envp); }
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void libafl_qemu_cleanup( void ) { qemu_cleanup(); }
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void libafl_qemu_set_breakpoint( vaddr );
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int libafl_snapshot_save( const char* );
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int libafl_snapshot_load( const char* );
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void libafl_phys_read(vaddr, uint8_t*, int);
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void libafl_phys_write(vaddr, uint8_t*, int);
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void libafl_qemu_main_loop( void )
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{
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vm_start();
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qemu_main_loop();
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}
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void libafl_qemu_set_breakpoint(vaddr pc)
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{
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CPUState *cpu;
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CPU_FOREACH(cpu) {
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cpu_breakpoint_insert(cpu, pc, BP_GDB, NULL);
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}
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}
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int libafl_snapshot_save( const char* name )
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{
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Error *err = NULL;
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save_snapshot(name, true, NULL, false, NULL, &err);
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return err == 0;
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}
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int libafl_snapshot_load( const char* name )
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{
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Error *err = NULL;
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load_snapshot(name, NULL, false, NULL, &err);
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return err == 0;
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}
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void libafl_phys_read(vaddr addr, uint8_t* buf, int len)
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{
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cpu_physical_memory_read(addr, buf, len);
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}
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void libafl_phys_write(vaddr addr, uint8_t* buf, int len)
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{
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cpu_physical_memory_write(addr, buf, len);
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}
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#ifndef AS_SHARED_LIB
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int main(int argc, char **argv, char **envp)
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{
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// qemu_init(argc, argv, envp);
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// qemu_main_loop();
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// qemu_cleanup();
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// 2000010c
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unsigned char buf[4096] = {3};
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libafl_qemu_sys_init(argc, argv, envp);
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libafl_phys_write(0x00006de4+0xc, buf,1);
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libafl_phys_read(0x00006de4+0xc, buf,1);
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printf("FUZZ_INPUT[0]: %x\n", buf[0]);
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libafl_qemu_set_breakpoint(0x00004f5c);
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libafl_snapshot_save("Start");
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do {
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libafl_qemu_main_loop();
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libafl_snapshot_load("Start");
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puts("Reload has occured");
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} while (runstate_check(RUN_STATE_DEBUG));
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libafl_qemu_cleanup();
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return 0;
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}
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#endif
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/* End LibAFL instrumentation */ |