63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* scanners.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2017/10/09 15:28:42 by jhalford #+# #+# */
|
|
/* Updated: 2017/10/26 17:20:20 by jhalford ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "nmap.h"
|
|
|
|
coroutine void nmap_scan_tcp(chan results, t_job job)
|
|
{
|
|
t_result result;
|
|
ipaddr src;
|
|
int sock;
|
|
|
|
sock = socket(ipfamily(job.dest), SOCK_STREAM, IPPROTO_TCP);
|
|
src = iplocal_randport(NULL, ipmode(job.dest), sock);
|
|
|
|
pcap_t *handle = nmap_capture(job.dest, src);
|
|
/* chan pkts; */
|
|
/* pkts = nmap_listener(job.dest, src); */
|
|
/* (void)pkts; */
|
|
/* DG("after listener"); */
|
|
|
|
result.dest = job.dest;
|
|
ft_strcpy(result.scan, "TCP");
|
|
|
|
struct tcphdr pkt;
|
|
result.status = CLOSED;
|
|
|
|
tcp_hdrinit(&pkt);
|
|
pkt.th_dport = htons(ipport(job.dest));
|
|
pkt.th_sport = htons(ipport(src));
|
|
pkt.th_flags = 0;
|
|
pkt.th_sum = cksum(&pkt, sizeof(pkt));
|
|
|
|
tcp_print((char *)&pkt, sizeof(pkt));
|
|
|
|
// REQ
|
|
DG("check");
|
|
if (sendto(sock, &pkt, sizeof(pkt), 0, (struct sockaddr*)&job.dest, sizeof(job.dest)) < 0)
|
|
{
|
|
DG("check 1");
|
|
perror("sendto");
|
|
}
|
|
DG("check 2");
|
|
|
|
// RESP
|
|
struct pcap_pkthdr pkthdr;
|
|
const u_char *resp;
|
|
resp = pcap_next(handle, &pkthdr);
|
|
tcp_print((char *)resp, pkthdr.len);
|
|
|
|
chs(results, t_result, result);
|
|
chclose(results);
|
|
return ;
|
|
|
|
}
|