Attachment 243661 Details for Bug 272770 – divert-to test code

divert-to test code

file_272770.txt (text/plain), 1.94 KB, created by Alfa on 2023-07-28 07:21:25 UTC

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Creator: Alfa

Created: 2023-07-28 07:21:25 UTC

Size: 1.94 KB

patch

obsolete

>#define  _GNU_SOURCE
>#include <sys/types.h>
>#include <sys/socket.h>
>#include <arpa/inet.h>
>#include <netinet/in.h>
>#include <netinet/ip.h>
>#include <net/if.h>
>#include <stdlib.h>
>#include <string.h>
>#include <unistd.h> 
>#include <stdio.h>
>
>#define BUFSIZE 65535
>
>int main() 
>{
>    int ret, data_size;
>    struct sockaddr_in bindPort, sin;
>    socklen_t sinlen;
>
>    unsigned char *packet = (unsigned char *)malloc(65536); //Its Big!
>    unsigned char *new_packet = (unsigned char *)malloc(65536); //Its Big!
>
>
>    /* open a divert socket */
>    int bind_socket; // divert_socket_bind
>    bind_socket = socket(PF_INET, SOCK_RAW, IPPROTO_DIVERT);
>
>    if (bind_socket == -1) {
>        perror("socket_bind_error");
>
>        exit(1);
>    }
>
>    bindPort.sin_family=PF_INET;
>    bindPort.sin_port=htons(3355);
>    bindPort.sin_addr.s_addr=0;
>
>    fprintf(stderr,"%d:Binding a socket\n",3355);
>    ret = bind(bind_socket, (struct sockaddr *)&bindPort, sizeof(struct sockaddr_in));
>
>    if(ret!=0){
>        close(bind_socket);
>        fprintf(stderr, "%d: Error bind(): %s",3355,strerror(ret));
>        exit(2);
>    }
>
>    printf("Waiting for data...\n");
>
>
>    sinlen = sizeof(struct sockaddr_in);
>    struct ip_header *hdr;
>
>
>   while(1){
>        data_size=recvfrom(bind_socket, packet, BUFSIZE, 0, (struct sockaddr *) &sin, &sinlen);
>        if(data_size < 0){
>            printf("Recvfrom Error, failed get packets \n");
>            return 1;
>        }
>
>        struct ip *ip_data = (struct ip *)packet;
>
>        char source_ip[20], destination_ip[20];
>        inet_ntop(AF_INET, &ip_data->ip_src, source_ip, sizeof(source_ip));
>        inet_ntop(AF_INET, &ip_data->ip_dst, destination_ip, sizeof(destination_ip));
>
>        printf("source_ip : %s \n",source_ip);
>        printf("destination_ip : %s \n",destination_ip);
>
>    	data_size = sendto(bind_socket, packet, data_size ,0, (struct sockaddr *) &sin, sinlen);
>    }
>}

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Attachments on bug 272770: 243661