/* NETWOX Network toolbox Copyright(c) 1999-2006 Laurent Constantin ----- Main server : http://www.laurentconstantin.com/ Backup servers : http://go.to/laurentconstantin/ http://laurentconstantin.est-la.com/ http://laurentconstantin.free.fr/ http://membres.lycos.fr/lauconstantin/ [my current email address is on the web servers] ----- This file is part of Netwox. Netwox 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. Netwox 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 (http://www.gnu.org/). ------------------------------------------------------------------------ */ /*-------------------------------------------------------------*/ #include "../netwox.h" /*-------------------------------------------------------------*/ netwib_conststring t000140_description[] = { NETWOX_DESC_spoof_packet, NETWOX_DESC_toolpriv_spoof, NULL }; netwox_toolarg t000140_args[] = { NETWOX_TOOLARG_OPT_BUF_DEVICE('d', NULL, "device for spoof", NULL), NETWOX_TOOLARG_OPT_ETH_SRC('a', "eth-src", "Ethernet src", NULL), NETWOX_TOOLARG_OPT_ETH_DST('b', "eth-dst", "Ethernet dst", NULL), NETWOX_TOOLARG_OPTA_UINT32('m', "eth-type", "Ethernet type", "2048"), NETWOX_TOOLARG_OPT_UINT32('c', "ip6-trafficclass", "IP6 traffic class", NULL), NETWOX_TOOLARG_OPT_UINT32('l', "ip6-flowlabel", "IP6 flow label", NULL), NETWOX_TOOLARG_OPTA_UINT32('e', "ip6-payloadlength", "IP6 payload length", NULL), NETWOX_TOOLARG_OPT_UINT32('f', "ip6-protocol", "IP6 next_header/protocol", NULL), NETWOX_TOOLARG_OPT_UINT32('g', "ip6-ttl", "IP6 hop_limit/ttl", NULL), NETWOX_TOOLARG_OPT_IP6_SRC('h', "ip6-src", "IP6 src", NULL), NETWOX_TOOLARG_OPT_IP6_DST('i', "ip6-dst", "IP6 dst", NULL), NETWOX_TOOLARG_OPT_BUF_IP6EXTS('j', "ip6-exts", "IP6 extensions", NULL), NETWOX_TOOLARG_OPT_BUF_MIXED('k', "ip6-data", NULL, NULL), NETWOX_TOOLARG_END }; netwox_tooltreenodetype t000140_nodes[] = { NETWOX_TOOLTREENODETYPE_SPOOF_ETH, NETWOX_TOOLTREENODETYPE_SPOOF_IP, NETWOX_TOOLTREENODETYPE_END }; netwox_tool_info t000140_info = { "Spoof EthernetIp6 packet", t000140_description, "frame, hping, mac, send", t000140_args, t000140_nodes, }; /*-------------------------------------------------------------*/ netwib_err t000140_core(int argc, char *argv[]) { netwox_arg *parg; netwib_buf device, buf, ip6data, pkt, pkt2; netwib_io *pio; netwib_device_dlttype dlt; netwib_linkhdr linkheader; netwib_iphdr ipheader; netwib_bool isset; /* obtain parameters */ netwib_er(netwox_arg_init(argc, argv, &t000140_info, &parg)); netwib_er(netwox_arg_buf(parg, 'd', &device)); netwib_er(netwib_io_init_spoof_link(&device, &pio)); netwib_er(netwib_spoof_ctl_get_dlt(pio, &dlt)); if (dlt != NETWIB_DEVICE_DLTTYPE_ETHER) { netwib_er(netwib_fmt_display("Device %{buf} does not have an Ether DLT (%{uint32}\n", &device, dlt)); return(NETWOX_ERR_SPOOF_INVALIDDLT); } netwib_er(netwib_linkhdr_initdefault(NETWIB_DEVICE_DLTTYPE_ETHER, &linkheader)); netwib_er(netwox_arg_eth(parg, 'a', &linkheader.hdr.ether.src)); netwib_er(netwox_arg_eth(parg, 'b', &linkheader.hdr.ether.dst)); netwib_er(netwib_iphdr_initdefault(NETWIB_IPTYPE_IP6, &ipheader)); netwib_er(netwox_arg_uint8(parg, 'c', &ipheader.header.ip6.trafficclass)); netwib_er(netwox_arg_uint32(parg, 'l', &ipheader.header.ip6.flowlabel)); netwib_er(netwox_arg_uint32(parg, 'f', (netwib_uint32*)&ipheader.protocol)); netwib_er(netwox_arg_uint8(parg, 'g', &ipheader.ttl)); netwib_er(netwox_arg_isset(parg, 'h', &isset)); if (isset) { netwib_er(netwox_arg_ip(parg, 'h', &ipheader.src)); } netwib_er(netwox_arg_isset(parg, 'i', &isset)); if (isset) { netwib_er(netwox_arg_ip(parg, 'i', &ipheader.dst)); } netwib_er(netwox_arg_isset(parg, 'j', &isset)); if (isset) { netwib_er(netwox_arg_buf(parg, 'j', &buf)); netwib_er(netwox_ip6exts_decode_para(&buf, &ipheader.protocol, &ipheader.header.ip6.exts)); } netwib_er(netwox_arg_buf(parg, 'k', &ip6data)); /* construct packet */ netwib_er(netwib_buf_init_mallocdefault(&pkt)); netwib_er(netwib_pkt_append_linkipdata(&linkheader, &ipheader, &ip6data, &pkt)); /* now, if user specified invalid fields, use them. We have to decode packet, to change fields, and to reconstruct packet. */ netwib_er(netwox_arg_isset(parg, 'e', &isset)); if (!isset) { netwib_er(netwox_arg_isset(parg, 'm', &isset)); } if (isset) { /* decode */ netwib_er(netwib_pkt_decode_linkipdata(NETWIB_DEVICE_DLTTYPE_ETHER, &pkt, &linkheader, &ipheader, &ip6data)); /* change fields */ netwib_er(netwox_arg_isset(parg, 'm', &isset)); if (isset) { netwib_er(netwox_arg_uint32(parg, 'm', (netwib_uint32*)&linkheader.hdr.ether.type)); } netwib_er(netwox_arg_isset(parg, 'e', &isset)); if (isset) { netwib_er(netwox_arg_uint16(parg, 'e', &ipheader.header.ip6.payloadlength)); } /* reconstruct header after header (no automatic computation) */ netwib_er(netwib_buf_init_mallocdefault(&pkt2)); netwib_er(netwib_pkt_append_linkhdr(&linkheader, &pkt2)); netwib_er(netwib_pkt_append_iphdr(&ipheader, &pkt2)); netwib_er(netwib_buf_append_buf(&ip6data, &pkt2)); netwib__buf_reinit(&pkt); netwib_er(netwib_buf_append_buf(&pkt2, &pkt)); netwib_er(netwib_buf_close(&pkt2)); /* warn user */ netwib_er(netwib_fmt_display("Those options generate an invalid packet. Do not trust sniffer display.\n")); netwib_er(netwib_fmt_display("Raw packet display (correct):\n")); netwib_er(netwib_buf_display(&pkt, NETWIB_ENCODETYPE_DUMP)); netwib_er(netwib_fmt_display("Nice packet display (don't trust it):\n")); } /* display to screen */ netwib_er(netwib_pkt_link_display(dlt, &pkt, NULL, NETWIB_ENCODETYPE_ARRAY, NETWIB_ENCODETYPE_DUMP)); /* send */ netwib_er(netwib_io_write(pio, &pkt)); /* close */ netwib_er(netwib_buf_close(&pkt)); netwib_er(netwib_io_close(&pio)); netwib_er(netwox_arg_close(&parg)); return(NETWIB_ERR_OK); }