c语言 SOME/IP协议检测代码
时间: 2023-05-23 17:06:32 浏览: 112
SOMEIP代码实现和测试结果.rar
A:
以下是一个使用C语言实现的SOME/IP协议检测代码示例:
```
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#define SOMEIP_MAGIC_NUMBER 0x42424242
#define SOMEIP_HEADER_LENGTH 12
struct someip_header {
uint32_t magic_number;
uint16_t message_id;
uint16_t length;
uint32_t request_id;
};
int main(int argc, char **argv) {
if(argc != 2) {
printf("Usage: %s <SOME/IP message file>\n", argv[0]);
return 1;
}
char* filename = argv[1];
FILE* file = fopen(filename, "rb");
if(!file) {
printf("Unable to open file %s\n", filename);
return 1;
}
fseek(file, 0, SEEK_END);
long file_size = ftell(file);
fseek(file, 0, SEEK_SET);
if(file_size < SOMEIP_HEADER_LENGTH) {
printf("Invalid file: filesize too small\n");
return 1;
}
char* buffer = (char*)malloc(SOMEIP_HEADER_LENGTH);
fread(buffer, 1, SOMEIP_HEADER_LENGTH, file);
struct someip_header* header = (struct someip_header*)buffer;
if(header->magic_number != htonl(SOMEIP_MAGIC_NUMBER)) {
printf("Invalid file: magic number does not match SOME/IP protocol\n");
return 1;
}
uint16_t message_length = ntohs(header->length);
if(file_size != SOMEIP_HEADER_LENGTH + message_length) {
printf("Invalid file: filesize does not match SOME/IP message length\n");
return 1;
}
printf("File is a valid SOME/IP message with message ID %d and request ID %d\n",
ntohs(header->message_id), ntohl(header->request_id));
free(buffer);
fclose(file);
return 0;
}
```
使用方法:将待检测的SOME/IP消息保存到一个二进制文件中,然后运行上述代码,传入文件名作为参数即可。
该代码会检查文件内容是否符合SOME/IP协议消息格式,如果符合则输出消息ID和请求ID。如果不符合,则输出错误信息并返回非0的退出码。
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