mirror of
https://github.com/mfontanini/libtins
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95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
/*
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* Copyright (c) 2012, Nasel
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "internals.h"
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#include "ip.h"
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#include "ipv6.h"
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#include "arp.h"
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#include "eapol.h"
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#include "rawpdu.h"
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using std::string;
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namespace Tins {
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namespace Internals {
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bool from_hex(const string &str, uint32_t &result) {
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unsigned i(0);
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result = 0;
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while(i < str.size()) {
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uint8_t tmp;
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if(str[i] >= 'A' && str[i] <= 'F')
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tmp = (str[i] - 'A' + 10);
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else if(str[i] >= '0' && str[i] <= '9')
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tmp = (str[i] - '0');
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else
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return false;
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result = (result << 4) | tmp;
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i++;
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}
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return true;
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}
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void skip_line(std::istream &input) {
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int c = 0;
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while(c != '\n' && input)
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c = input.get();
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}
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Tins::PDU *pdu_from_flag(Constants::Ethernet::e flag, const uint8_t *buffer,
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uint32_t size, bool rawpdu_on_no_match)
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{
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switch(flag) {
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case Tins::Constants::Ethernet::IP:
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return new Tins::IP(buffer, size);
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case Constants::Ethernet::IPV6:
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return new Tins::IPv6(buffer, size);
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case Tins::Constants::Ethernet::ARP:
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return new Tins::ARP(buffer, size);
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case Tins::Constants::Ethernet::EAPOL:
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return Tins::EAPOL::from_bytes(buffer, size);
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default:
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return rawpdu_on_no_match ? new RawPDU(buffer, size) : 0;
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};
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}
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Constants::Ethernet::e pdu_flag_to_ether_type(PDU::PDUType flag) {
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switch (flag) {
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case PDU::IP:
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return Constants::Ethernet::IP;
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case PDU::IPv6:
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return Constants::Ethernet::IPV6;
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case PDU::ARP:
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return Constants::Ethernet::ARP;
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default:
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return Constants::Ethernet::UNKNOWN;
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}
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}
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}
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}
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