Backups/hping3
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first draft

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Alex
2022-04-13 18:01:39 +08:00
commit 906782e134
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linux_sockpacket.c Normal file
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/*
* $smu-mark$
* $name: linux_sockpacket.c$
* $author: Salvatore Sanfilippo <antirez@invece.org>$
* $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$
* $license: This software is under GPL version 2 of license$
* $date: Fri Nov 5 11:55:48 MET 1999$
* $rev: 8$
*/
#include "hping2.h"
#if (defined OSTYPE_LINUX) && (!defined FORCE_LIBPCAP)
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h> /* close */
#include <stdio.h>
#include "globals.h"
static void enlarge_recvbuf(int fd)
{
int val = 131070;
int len = sizeof(val);
/* Don't check the error: non fatal */
setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (const char *) &val, len);
}
#ifndef ETH_P_IPV6
# define ETH_P_IPV6 0x86DD
#endif
int open_sockpacket()
{
int s;
if (opt_debug)
printf("DEBUG: Trying to open PF_PACKET socket... ");
// s = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP));
// s = socket(PF_PACKET, SOCK_DGRAM, 768);
if(opt_ipv6)
s = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IPV6));
else
s = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
if (s == -1) {
if (opt_debug) {
printf("DEBUG: failed ( 2.0.x kernel? )\n");
printf("DEBUG: Trying to open SOCK_PACKET socket... ");
}
s = socket(AF_INET, SOCK_PACKET, htons(ETH_P_IP));
}
if (s == -1) {
perror("[open_sockpacket] socket()");
return -1;
}
enlarge_recvbuf(s);
if (opt_debug)
printf("DEBUG: PF_PACKET, SOCK_RAW open OK\n");
return s;
}
int close_sockpacket(int s)
{
return close(s);
}
#endif /* OSTYPE_LINUX && !FORCE_LIBPCAP */