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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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/*
* $smu-mark$
* $name: sendudp.c$
* $author: Salvatore Sanfilippo <antirez@invece.org>$
* $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$
* $license: This software is under GPL version 2 of license$
* $date: Fri Nov 5 11:55:49 MET 1999$
* $rev: 8$
*/
/* $Id: send.c,v 1.6 2003/08/01 14:53:08 antirez Exp $ */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/time.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include "hping2.h"
#include "globals.h"
#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")
#endif
static void select_next_random_source(void)
{
unsigned char ra[4];
ra[0] = hp_rand() & 0xFF;
ra[1] = hp_rand() & 0xFF;
ra[2] = hp_rand() & 0xFF;
ra[3] = hp_rand() & 0xFF;
memcpy(&ADDR4(&local).s_addr, ra, 4);
if (opt_debug)
printf("DEBUG: the source address is %u.%u.%u.%u\n",
ra[0], ra[1], ra[2], ra[3]);
}
static void select_next_random_ipv6_source(void)
{
unsigned char ra[16];
ra[0] = hp_rand() & 0xFF;
ra[1] = hp_rand() & 0xFF;
ra[2] = hp_rand() & 0xFF;
ra[3] = hp_rand() & 0xFF;
ra[4] = hp_rand() & 0xFF;
ra[5] = hp_rand() & 0xFF;
ra[6] = hp_rand() & 0xFF;
ra[7] = hp_rand() & 0xFF;
ra[8] = hp_rand() & 0xFF;
ra[9] = hp_rand() & 0xFF;
ra[10] = hp_rand() & 0xFF;
ra[11] = hp_rand() & 0xFF;
ra[12] = hp_rand() & 0xFF;
ra[13] = hp_rand() & 0xFF;
ra[14] = hp_rand() & 0xFF;
ra[15] = hp_rand() & 0xFF;
memcpy(&ADDR6(&local).s6_addr, ra, 16);
}
static void select_next_random_ipv6_dest(void)
{
unsigned char ra[16];
ra[0] = hp_rand() & 0xFF;
ra[1] = hp_rand() & 0xFF;
ra[2] = hp_rand() & 0xFF;
ra[3] = hp_rand() & 0xFF;
ra[4] = hp_rand() & 0xFF;
ra[5] = hp_rand() & 0xFF;
ra[6] = hp_rand() & 0xFF;
ra[7] = hp_rand() & 0xFF;
ra[8] = hp_rand() & 0xFF;
ra[9] = hp_rand() & 0xFF;
ra[10] = hp_rand() & 0xFF;
ra[11] = hp_rand() & 0xFF;
ra[12] = hp_rand() & 0xFF;
ra[13] = hp_rand() & 0xFF;
ra[14] = hp_rand() & 0xFF;
ra[15] = hp_rand() & 0xFF;
memcpy(&ADDR6(&remote).s6_addr, ra, 16);
}
static void select_next_random_ipv6_source_simple(void)
{ struct in6_addr rand6;
rand6 = ipv6_rand("2200::",8);
memcpy(&ADDR6(&local).s6_addr, rand6.s6_addr,16);
}
static void select_next_random_ipv6_dest_simple(void)
{
struct in6_addr rand6;
rand6 = ipv6_rand("2200::",8);
memcpy(&ADDR6(&remote).s6_addr, rand6.s6_addr,16);
}
static void select_next_random_dest(void)
{
unsigned char ra[4];
char a[4], b[4], c[4], d[4];
if (sscanf(targetname, "%4[^.].%4[^.].%4[^.].%4[^.]", a, b, c, d) != 4)
{
fprintf(stderr,
"wrong --rand-dest target host, correct examples:\n"
" x.x.x.x, 192,168.x.x, 128.x.x.255\n"
"you typed: %s\n", targetname);
exit(1);
}
a[3] = b[3] = c[3] = d[3] = '\0';
ra[0] = a[0] == 'x' ? (hp_rand() & 0xFF) : strtoul(a, NULL, 0);
ra[1] = b[0] == 'x' ? (hp_rand() & 0xFF) : strtoul(b, NULL, 0);
ra[2] = c[0] == 'x' ? (hp_rand() & 0xFF) : strtoul(c, NULL, 0);
ra[3] = d[0] == 'x' ? (hp_rand() & 0xFF) : strtoul(d, NULL, 0);
memcpy(&ADDR4(&remote).s_addr, ra, 4);
if (opt_debug) {
printf("DEBUG: the dest address is %u.%u.%u.%u\n",
ra[0], ra[1], ra[2], ra[3]);
}
}
long long sum_bytes;
unsigned int sum_packets;
/* The signal handler for SIGALRM will send the packets */
#define TDIFF(a,b) (((a).tv_usec - (b).tv_usec)/1000+((a).tv_sec - (b).tv_sec)*1000)
void send_packet (int signal_id)
{
int errno_save = errno;
struct timeval tv1, tv2;
int lel = 0;
gettimeofday(&tv1, NULL);
do{
if (opt_rand_dest){
if(opt_ipv6) {
select_next_random_ipv6_dest();
} else {
select_next_random_dest();
}
}
if (opt_rand_source){
if(opt_ipv6) {
select_next_random_ipv6_source();
} else {
select_next_random_source();
}
}
if (opt_rawipmode) send_rawip();
else if (opt_icmpmode){if(opt_ipv6)send_icmp6(); else send_icmp();}
else if (opt_udpmode) send_udp();
else send_tcp();
sent_pkt++;
if((opt_pps || opt_bps) && (sum_packets & 127) == 13)
{
int el;
gettimeofday(&tv2, NULL);
el = TDIFF(tv2, tv1);
if(opt_bps)
{
if(sum_bytes * 1000 / opt_bps > el)
usleep((sum_bytes * 1000 / opt_bps - el) * 1000);
}
else if(opt_pps)
{
if(sum_packets * 1000 / opt_pps > el)
usleep((sum_packets * 1000 / opt_pps - el) * 1000);
}
if(el - lel > 100)
{
float bps, pps;
char *bpsc, *ppsc;
gettimeofday(&tv2, NULL);
el = TDIFF(tv2, tv1);
pps = (float)sum_packets*1000/el;
bps = (float)sum_bytes*8000/el;
bpsc = ppsc = "";
if(bps > 9999999999.0)
{
bps /= 1000000000.0;
bpsc = "G";
}
else if(bps > 9999999)
{
bps /= 1000000;
bpsc = "M";
}
else if(bps > 9999)
{
bps /= 1000;
bpsc = "k";
}
if(pps > 9999999)
{
pps /= 1000000;
ppsc = "M";
}
else if(pps > 9999)
{
pps /= 1000;
ppsc = "k";
}
printf("\rt: %.2fs, %.1f %spps, %.1f %sbps ", (float)el/1000.0, pps, ppsc, bps, bpsc);
fflush(stdout);
lel = el;
}
}
}while(opt_pps || opt_bps);
Signal(SIGALRM, send_packet);
if (count != -1 && count == sent_pkt) { /* count reached? */
Signal(SIGALRM, print_statistics);
alarm(COUNTREACHED_TIMEOUT);
} else if (!opt_listenmode) {
if (opt_waitinusec == FALSE)
alarm(sending_wait);
else
setitimer(ITIMER_REAL, &usec_delay, NULL);
}
errno = errno_save;
}