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/*
* Mausezahn - A fast versatile traffic generator
* Copyright (C) 2008-2010 Herbert Haas
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, see http://www.gnu.org/licenses/gpl-2.0.html
*
*/
#include "mz.h"
#include "cli.h"
int tx_switch(struct cli_def *cli)
{
// These handles are only used when creating L3 and above packets.
libnet_t *l; // the context
libnet_ptag_t t2=0, t3=0, t4=0; // handles to layers
double cpu_time_used;
switch (mode)
{
case BYTE_STREAM:
send_eth();
break;
case ARP:
if (send_arp()==-1) return 0;
break;
case BPDU:
if (send_bpdu()==-1) return 0;
break;
case CDP:
if (send_cdp()==-1) return 0;
break;
case IP: // From now on a new much more modular method is used:
l = get_link_context();
t3 = create_ip_packet(l); // t3 can be used for later header changes
if (!quiet) complexity();
if (tx.packet_mode==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
t2 = create_eth_frame(l, t3, t4); // t2 can be used for later header changes
else
send_frame (l, t3, t4); // NOTE: send_frame also destroys context finaly
break;
case ICMP:
tx.ip_proto = 1;
l = get_link_context();
t4 = create_icmp_packet(l); // t4 can be used for later header changes
if (t4==-1) return 0;
t3 = create_ip_packet(l); // t3 can be used for later header changes
if (!quiet) complexity();
if (tx.packet_mode==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
t2 = create_eth_frame(l, t3, t4); // t2 can be used for later header changes
else
send_frame (l, t3, t4); // NOTE: send_frame also destroys context finaly
break;
case UDP:
tx.ip_proto = 17;
l = get_link_context();
t4 = create_udp_packet(l); // t4 can be used for later header changes
if (t4==-1) return 0;
t3 = create_ip_packet(l); // t3 can be used for later header changes
if (!quiet) complexity();
if (tx.packet_mode==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
t2 = create_eth_frame(l, t3, t4); // t2 can be used for later header changes
else
send_frame (l, t3, t4); // NOTE: send_frame also destroys context finaly
break;
case TCP:
tx.ip_proto = 6;
l = get_link_context();
t4 = create_tcp_packet(l); // t4 can be used for later header changes
if (t4==-1) return 0;
t3 = create_ip_packet(l); // t3 can be used for later header changes
if (!quiet) complexity();
if (tx.packet_mode==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
t2 = create_eth_frame(l, t3, t4); // t2 can be used for later header changes
else
send_frame (l, t3, t4); // NOTE: send_frame also destroys context finaly
break;
case DNS:
tx.ip_proto = 17;
l = get_link_context();
if (create_dns_packet()==-1) return 0;
t4 = create_udp_packet(l); // t4 can be used for later header changes
t3 = create_ip_packet(l); // t3 can be used for later header changes
if (!quiet) complexity();
if (tx.packet_mode==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
t2 = create_eth_frame(l, t3, t4); // t2 can be used for later header changes
else
send_frame (l, t3, t4); // NOTE: send_frame also destroys context finaly
break;
case RTP:
tx.ip_proto = 17;
l = get_link_context();
if (create_rtp_packet()==-1) return 0;
cli_print(cli, "RTP mode! (count=%u, delay=%u usec)\n", tx.count, tx.delay);
t4 = create_udp_packet(l); // t4 can be used for later header changes
t3 = create_ip_packet(l); // t3 can be used for later header changes
if (!quiet) complexity();
if (tx.packet_mode==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
t2 = create_eth_frame(l, t3, t4); // t2 can be used for later header changes
else
send_frame (l, t3, t4); // NOTE: send_frame also destroys context finaly
break;
case RX_RTP: // Receive RTP packets
rcv_rtp_init();
rcv_rtp();
break;
case SYSLOG:
tx.ip_proto = 17;
l = get_link_context();
if (create_syslog_packet()==-1) return 0;
t4 = create_udp_packet(l); // t4 can be used for later header changes
t3 = create_ip_packet(l); // t3 can be used for later header changes
if (!quiet) complexity();
if (tx.packet_mode==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
t2 = create_eth_frame(l, t3, t4); // t2 can be used for later header changes
else
send_frame (l, t3, t4); // NOTE: send_frame also destroys context finaly
break;
case LLDP: // start with a new concept here
//l = get_link_context();
//(void) create_lldp_packet();
// // // printf("SIZE=%lu\n",sizeof(struct tx_struct));
break;
default:
cli_print(cli,"Unknown mode!\n");
return (1);
}
// ***** Re-init packet functions: *****
tx.ip_payload_s = 0;
tx.udp_len = 0;
tx.tcp_payload_s = 0;
tx.icmp_payload_s = 0;
tx.cdp_sum = 0;
mode = 0;
// **************************************
mz_stop = clock();
cpu_time_used = ((double) (mz_stop - mz_start)) / CLOCKS_PER_SEC;
if (cpu_time_used > 0)
{
total_d /= cpu_time_used;
cli_print(cli, "%.2f seconds (%.Lf packets per second)\n",cpu_time_used,total_d);
}
return 0;
}
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