mirror of
https://github.com/mfontanini/libtins
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fe22186623
This commit adds support for the Real-time Transport Protocol (RTP) as defined in RFC 3550. Some tests have also been added to ensure that the RTP PDU class functionality is working as expected. Signed-off-by: James Raphael Tiovalen <jamestiotio@gmail.com>
306 lines
10 KiB
C++
306 lines
10 KiB
C++
/*
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* Copyright (c) 2017, Matias Fontanini
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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 <tins/detail/pdu_helpers.h>
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#ifdef TINS_HAVE_PCAP
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#include <pcap.h>
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#endif // TINS_HAVE_PCAP
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#include <tins/ip.h>
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#include <tins/ethernetII.h>
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#include <tins/ieee802_3.h>
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#include <tins/radiotap.h>
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#include <tins/dot11/dot11_base.h>
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#include <tins/ipv6.h>
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#include <tins/tcp.h>
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#include <tins/udp.h>
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#include <tins/ipsec.h>
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#include <tins/icmp.h>
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#include <tins/loopback.h>
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#include <tins/sll.h>
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#include <tins/ppi.h>
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#include <tins/icmpv6.h>
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#include <tins/mpls.h>
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#include <tins/arp.h>
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#include <tins/eapol.h>
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#include <tins/rawpdu.h>
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#include <tins/dot1q.h>
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#include <tins/pppoe.h>
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#include <tins/pdu_allocator.h>
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namespace Tins {
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namespace Internals {
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Tins::PDU* pdu_from_flag(Constants::Ethernet::e flag,
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const uint8_t* buffer,
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uint32_t size,
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bool rawpdu_on_no_match) {
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switch (flag) {
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case Tins::Constants::Ethernet::IP:
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return new IP(buffer, size);
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case Constants::Ethernet::IPV6:
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return new IPv6(buffer, size);
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case Tins::Constants::Ethernet::ARP:
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return new ARP(buffer, size);
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case Tins::Constants::Ethernet::PPPOED:
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case Tins::Constants::Ethernet::PPPOES:
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return new PPPoE(buffer, size);
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case Tins::Constants::Ethernet::EAPOL:
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return EAPOL::from_bytes(buffer, size);
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case Tins::Constants::Ethernet::VLAN:
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case Tins::Constants::Ethernet::QINQ:
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case Tins::Constants::Ethernet::OLD_QINQ:
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return new Dot1Q(buffer, size);
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case Tins::Constants::Ethernet::MPLS:
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return new MPLS(buffer, size);
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default:
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{
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PDU* pdu = Internals::allocate<EthernetII>(
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static_cast<uint16_t>(flag),
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buffer,
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size
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);
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if (pdu) {
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return pdu;
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}
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}
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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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Tins::PDU* pdu_from_flag(Constants::IP::e flag,
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const uint8_t* buffer,
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uint32_t size,
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bool rawpdu_on_no_match) {
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switch (flag) {
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case Constants::IP::PROTO_IPIP:
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return new Tins::IP(buffer, size);
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case Constants::IP::PROTO_TCP:
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return new Tins::TCP(buffer, size);
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case Constants::IP::PROTO_UDP:
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return new Tins::UDP(buffer, size);
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case Constants::IP::PROTO_ICMP:
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return new Tins::ICMP(buffer, size);
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case Constants::IP::PROTO_ICMPV6:
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return new Tins::ICMPv6(buffer, size);
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case Constants::IP::PROTO_IPV6:
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return new Tins::IPv6(buffer, size);
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case Constants::IP::PROTO_AH:
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return new Tins::IPSecAH(buffer, size);
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case Constants::IP::PROTO_ESP:
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return new Tins::IPSecESP(buffer, size);
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default:
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break;
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}
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if (rawpdu_on_no_match) {
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return new Tins::RawPDU(buffer, size);
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}
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return 0;
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}
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#ifdef TINS_HAVE_PCAP
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PDU* pdu_from_dlt_flag(int flag,
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const uint8_t* buffer,
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uint32_t size,
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bool rawpdu_on_no_match) {
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switch (flag) {
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case DLT_EN10MB:
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return new EthernetII(buffer, size);
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#ifdef TINS_HAVE_DOT11
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case DLT_IEEE802_11_RADIO:
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return new RadioTap(buffer, size);
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case DLT_IEEE802_11:
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return Dot11::from_bytes(buffer, size);
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#else // TINS_HAVE_DOT11
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case DLT_IEEE802_11_RADIO:
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case DLT_IEEE802_11:
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throw protocol_disabled();
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#endif // TINS_HAVE_DOT11
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case DLT_NULL:
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return new Loopback(buffer, size);
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case DLT_LINUX_SLL:
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return new SLL(buffer, size);
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case DLT_PPI:
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return new PPI(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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#endif // TINS_HAVE_PCAP
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Tins::PDU* pdu_from_flag(PDU::PDUType type, const uint8_t* buffer, uint32_t size) {
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switch(type) {
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case Tins::PDU::ETHERNET_II:
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return new Tins::EthernetII(buffer, size);
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case Tins::PDU::IP:
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return new Tins::IP(buffer, size);
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case Tins::PDU::IPv6:
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return new Tins::IPv6(buffer, size);
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case Tins::PDU::ARP:
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return new Tins::ARP(buffer, size);
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case Tins::PDU::IEEE802_3:
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return new Tins::IEEE802_3(buffer, size);
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case Tins::PDU::PPPOE:
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return new Tins::PPPoE(buffer, size);
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case Tins::PDU::RAW:
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return new Tins::RawPDU(buffer, size);
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#ifdef TINS_HAVE_DOT11
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case Tins::PDU::RADIOTAP:
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return new Tins::RadioTap(buffer, size);
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case Tins::PDU::DOT11:
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case Tins::PDU::DOT11_ACK:
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case Tins::PDU::DOT11_ASSOC_REQ:
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case Tins::PDU::DOT11_ASSOC_RESP:
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case Tins::PDU::DOT11_AUTH:
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case Tins::PDU::DOT11_BEACON:
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case Tins::PDU::DOT11_BLOCK_ACK:
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case Tins::PDU::DOT11_BLOCK_ACK_REQ:
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case Tins::PDU::DOT11_CF_END:
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case Tins::PDU::DOT11_DATA:
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case Tins::PDU::DOT11_CONTROL:
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case Tins::PDU::DOT11_DEAUTH:
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case Tins::PDU::DOT11_DIASSOC:
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case Tins::PDU::DOT11_END_CF_ACK:
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case Tins::PDU::DOT11_MANAGEMENT:
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case Tins::PDU::DOT11_PROBE_REQ:
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case Tins::PDU::DOT11_PROBE_RESP:
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case Tins::PDU::DOT11_PS_POLL:
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case Tins::PDU::DOT11_REASSOC_REQ:
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case Tins::PDU::DOT11_REASSOC_RESP:
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case Tins::PDU::DOT11_RTS:
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case Tins::PDU::DOT11_QOS_DATA:
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return Tins::Dot11::from_bytes(buffer, size);
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#endif // TINS_HAVE_DOT11
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default:
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return 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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case PDU::DOT1Q:
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return Constants::Ethernet::VLAN;
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case PDU::DOT1AD:
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return Constants::Ethernet::QINQ;
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case PDU::PPPOE:
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return Constants::Ethernet::PPPOED;
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case PDU::MPLS:
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return Constants::Ethernet::MPLS;
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case PDU::RSNEAPOL:
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case PDU::RC4EAPOL:
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return Constants::Ethernet::EAPOL;
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default:
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if (Internals::pdu_type_registered<EthernetII>(flag)) {
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return static_cast<Constants::Ethernet::e>(
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Internals::pdu_type_to_id<EthernetII>(flag)
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);
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}
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return Constants::Ethernet::UNKNOWN;
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}
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}
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PDU::PDUType ether_type_to_pdu_flag(Constants::Ethernet::e flag) {
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switch (flag) {
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case Constants::Ethernet::IP:
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return PDU::IP;
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case Constants::Ethernet::IPV6:
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return PDU::IPv6;
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case Constants::Ethernet::ARP:
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return PDU::ARP;
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case Constants::Ethernet::VLAN:
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return PDU::DOT1Q;
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case Constants::Ethernet::QINQ:
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case Constants::Ethernet::OLD_QINQ:
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return PDU::DOT1AD;
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case Constants::Ethernet::PPPOED:
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return PDU::PPPOE;
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//case PDU::RSNEAPOL
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//case PDU::RC4EAPOL:
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// return Constants::Ethernet::EAPOL;
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default:
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return PDU::UNKNOWN;
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}
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}
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Constants::IP::e pdu_flag_to_ip_type(PDU::PDUType flag) {
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switch(flag) {
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case PDU::IP:
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return Constants::IP::PROTO_IPIP;
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case PDU::IPv6:
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return Constants::IP::PROTO_IPV6;
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case PDU::TCP:
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return Constants::IP::PROTO_TCP;
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case PDU::UDP:
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return Constants::IP::PROTO_UDP;
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case PDU::ICMP:
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return Constants::IP::PROTO_ICMP;
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case PDU::ICMPv6:
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return Constants::IP::PROTO_ICMPV6;
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case PDU::IPSEC_AH:
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return Constants::IP::PROTO_AH;
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case PDU::IPSEC_ESP:
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return Constants::IP::PROTO_ESP;
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default:
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return static_cast<Constants::IP::e>(0xff);
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};
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}
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PDU::PDUType ip_type_to_pdu_flag(Constants::IP::e flag) {
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switch(flag) {
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case Constants::IP::PROTO_IPIP:
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return PDU::IP;
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case Constants::IP::PROTO_IPV6:
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return PDU::IPv6;
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case Constants::IP::PROTO_TCP:
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return PDU::TCP;
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case Constants::IP::PROTO_UDP:
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return PDU::UDP;
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case Constants::IP::PROTO_ICMP:
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return PDU::ICMP;
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case Constants::IP::PROTO_ICMPV6:
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return PDU::ICMPv6;
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case Constants::IP::PROTO_AH:
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return PDU::IPSEC_AH;
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case Constants::IP::PROTO_ESP:
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return PDU::IPSEC_ESP;
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default:
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return PDU::UNKNOWN;
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};
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}
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} // Internals
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} // Tins
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