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