aosp12/hardware/google/apf/apf_disassembler.c

43 lines
1.4 KiB
C

/*
* Copyright 2016, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <stdio.h>
#include "disassembler.h"
// Disassembles an APF program. A hex dump of the program is supplied on stdin.
//
// NOTE: This is a simple debugging tool not meant for shipping or production use. It is by no
// means hardened against malicious input and contains known vulnerabilities.
//
// Example usage:
// adb shell dumpsys wifi ipmanager | sed '/Last program:/,+1!d;/Last program:/d;s/[ ]*//' | out/host/linux-x86/bin/apf_disassembler
int main(void) {
uint32_t program_len = 0;
uint8_t program[10000];
// Read in hex program bytes
int byte;
while (scanf("%2x", &byte) == 1 && program_len < sizeof(program)) {
program[program_len++] = byte;
}
for (uint32_t pc = 0; pc < program_len;) {
pc = apf_disassemble(program, program_len, pc);
}
}