mirror of
https://github.com/mfontanini/libtins
synced 2026-01-23 10:45:57 +01:00
264 lines
8.7 KiB
C++
264 lines
8.7 KiB
C++
/*
|
|
* Copyright (c) 2014, Matias Fontanini
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following disclaimer
|
|
* in the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#include "internals.h"
|
|
#include "ip.h"
|
|
#include "ethernetII.h"
|
|
#include "ieee802_3.h"
|
|
#include "radiotap.h"
|
|
#include "dot11/dot11_base.h"
|
|
#include "ipv6.h"
|
|
#include "tcp.h"
|
|
#include "udp.h"
|
|
#include "ipsec.h"
|
|
#include "icmp.h"
|
|
#include "icmpv6.h"
|
|
#include "arp.h"
|
|
#include "eapol.h"
|
|
#include "rawpdu.h"
|
|
#include "dot1q.h"
|
|
#include "pppoe.h"
|
|
#include "ip_address.h"
|
|
#include "ipv6_address.h"
|
|
#include "pdu_allocator.h"
|
|
|
|
using std::string;
|
|
|
|
namespace Tins {
|
|
namespace Internals {
|
|
bool from_hex(const string &str, uint32_t &result) {
|
|
unsigned i(0);
|
|
result = 0;
|
|
while(i < str.size()) {
|
|
uint8_t tmp;
|
|
if(str[i] >= 'A' && str[i] <= 'F')
|
|
tmp = (str[i] - 'A' + 10);
|
|
else if(str[i] >= '0' && str[i] <= '9')
|
|
tmp = (str[i] - '0');
|
|
else
|
|
return false;
|
|
result = (result << 4) | tmp;
|
|
i++;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void skip_line(std::istream &input) {
|
|
int c = 0;
|
|
while(c != '\n' && input)
|
|
c = input.get();
|
|
}
|
|
|
|
Tins::PDU *pdu_from_flag(Constants::Ethernet::e flag, const uint8_t *buffer,
|
|
uint32_t size, bool rawpdu_on_no_match)
|
|
{
|
|
switch(flag) {
|
|
case Tins::Constants::Ethernet::IP:
|
|
return new IP(buffer, size);
|
|
case Constants::Ethernet::IPV6:
|
|
return new IPv6(buffer, size);
|
|
case Tins::Constants::Ethernet::ARP:
|
|
return new ARP(buffer, size);
|
|
case Tins::Constants::Ethernet::PPPOED:
|
|
return new PPPoE(buffer, size);
|
|
case Tins::Constants::Ethernet::EAPOL:
|
|
return EAPOL::from_bytes(buffer, size);
|
|
case Tins::Constants::Ethernet::VLAN:
|
|
return new Dot1Q(buffer, size);
|
|
default:
|
|
{
|
|
PDU *pdu = Internals::allocate<EthernetII>(
|
|
static_cast<uint16_t>(flag),
|
|
buffer,
|
|
size
|
|
);
|
|
if(pdu)
|
|
return pdu;
|
|
}
|
|
return rawpdu_on_no_match ? new RawPDU(buffer, size) : 0;
|
|
};
|
|
}
|
|
|
|
Tins::PDU *pdu_from_flag(Constants::IP::e flag, const uint8_t *buffer,
|
|
uint32_t size, bool rawpdu_on_no_match)
|
|
{
|
|
switch(flag) {
|
|
case Constants::IP::PROTO_IPIP:
|
|
return new Tins::IP(buffer, size);
|
|
case Constants::IP::PROTO_TCP:
|
|
return new Tins::TCP(buffer, size);
|
|
case Constants::IP::PROTO_UDP:
|
|
return new Tins::UDP(buffer, size);
|
|
case Constants::IP::PROTO_ICMP:
|
|
return new Tins::ICMP(buffer, size);
|
|
case Constants::IP::PROTO_ICMPV6:
|
|
return new Tins::ICMPv6(buffer, size);
|
|
case Constants::IP::PROTO_IPV6:
|
|
return new Tins::IPv6(buffer, size);
|
|
case Constants::IP::PROTO_AH:
|
|
return new Tins::IPSecAH(buffer, size);
|
|
case Constants::IP::PROTO_ESP:
|
|
return new Tins::IPSecESP(buffer, size);
|
|
default:
|
|
break;
|
|
}
|
|
if(rawpdu_on_no_match)
|
|
return new Tins::RawPDU(buffer, size);
|
|
return 0;
|
|
}
|
|
|
|
Tins::PDU *pdu_from_flag(PDU::PDUType type, const uint8_t *buffer, uint32_t size)
|
|
{
|
|
switch(type) {
|
|
case Tins::PDU::ETHERNET_II:
|
|
return new Tins::EthernetII(buffer, size);
|
|
case Tins::PDU::IP:
|
|
return new Tins::IP(buffer, size);
|
|
case Tins::PDU::IPv6:
|
|
return new Tins::IPv6(buffer, size);
|
|
case Tins::PDU::ARP:
|
|
return new Tins::ARP(buffer, size);
|
|
case Tins::PDU::IEEE802_3:
|
|
return new Tins::IEEE802_3(buffer, size);
|
|
case Tins::PDU::PPPOE:
|
|
return new Tins::PPPoE(buffer, size);
|
|
#ifdef HAVE_DOT11
|
|
case Tins::PDU::RADIOTAP:
|
|
return new Tins::RadioTap(buffer, size);
|
|
case Tins::PDU::DOT11:
|
|
case Tins::PDU::DOT11_ACK:
|
|
case Tins::PDU::DOT11_ASSOC_REQ:
|
|
case Tins::PDU::DOT11_ASSOC_RESP:
|
|
case Tins::PDU::DOT11_AUTH:
|
|
case Tins::PDU::DOT11_BEACON:
|
|
case Tins::PDU::DOT11_BLOCK_ACK:
|
|
case Tins::PDU::DOT11_BLOCK_ACK_REQ:
|
|
case Tins::PDU::DOT11_CF_END:
|
|
case Tins::PDU::DOT11_DATA:
|
|
case Tins::PDU::DOT11_CONTROL:
|
|
case Tins::PDU::DOT11_DEAUTH:
|
|
case Tins::PDU::DOT11_DIASSOC:
|
|
case Tins::PDU::DOT11_END_CF_ACK:
|
|
case Tins::PDU::DOT11_MANAGEMENT:
|
|
case Tins::PDU::DOT11_PROBE_REQ:
|
|
case Tins::PDU::DOT11_PROBE_RESP:
|
|
case Tins::PDU::DOT11_PS_POLL:
|
|
case Tins::PDU::DOT11_REASSOC_REQ:
|
|
case Tins::PDU::DOT11_REASSOC_RESP:
|
|
case Tins::PDU::DOT11_RTS:
|
|
case Tins::PDU::DOT11_QOS_DATA:
|
|
return Tins::Dot11::from_bytes(buffer, size);
|
|
#endif // HAVE_DOT11
|
|
default:
|
|
return 0;
|
|
};
|
|
}
|
|
|
|
Constants::Ethernet::e pdu_flag_to_ether_type(PDU::PDUType flag) {
|
|
switch (flag) {
|
|
case PDU::IP:
|
|
return Constants::Ethernet::IP;
|
|
case PDU::IPv6:
|
|
return Constants::Ethernet::IPV6;
|
|
case PDU::ARP:
|
|
return Constants::Ethernet::ARP;
|
|
case PDU::DOT1Q:
|
|
return Constants::Ethernet::VLAN;
|
|
case PDU::PPPOE:
|
|
return Constants::Ethernet::PPPOED;
|
|
default:
|
|
if(Internals::pdu_type_registered<EthernetII>(flag))
|
|
return static_cast<Constants::Ethernet::e>(
|
|
Internals::pdu_type_to_id<EthernetII>(flag)
|
|
);
|
|
return Constants::Ethernet::UNKNOWN;
|
|
}
|
|
}
|
|
|
|
Constants::IP::e pdu_flag_to_ip_type(PDU::PDUType flag) {
|
|
switch(flag) {
|
|
case PDU::IP:
|
|
return Constants::IP::PROTO_IPIP;
|
|
case PDU::IPv6:
|
|
return Constants::IP::PROTO_IPV6;
|
|
case PDU::TCP:
|
|
return Constants::IP::PROTO_TCP;
|
|
case PDU::UDP:
|
|
return Constants::IP::PROTO_UDP;
|
|
case PDU::ICMP:
|
|
return Constants::IP::PROTO_ICMP;
|
|
case PDU::ICMPv6:
|
|
return Constants::IP::PROTO_ICMPV6;
|
|
case PDU::IPSEC_AH:
|
|
return Constants::IP::PROTO_AH;
|
|
case PDU::IPSEC_ESP:
|
|
return Constants::IP::PROTO_ESP;
|
|
default:
|
|
return static_cast<Constants::IP::e>(0xff);
|
|
};
|
|
}
|
|
|
|
bool increment(IPv4Address &addr) {
|
|
uint32_t addr_int = Endian::be_to_host<uint32_t>(addr);
|
|
bool reached_end = ++addr_int == 0xffffffff;
|
|
addr = IPv4Address(Endian::be_to_host<uint32_t>(addr_int));
|
|
return reached_end;
|
|
}
|
|
|
|
bool increment(IPv6Address &addr) {
|
|
return increment_buffer(addr);
|
|
}
|
|
|
|
bool decrement(IPv4Address &addr) {
|
|
uint32_t addr_int = Endian::be_to_host<uint32_t>(addr);
|
|
bool reached_end = --addr_int == 0;
|
|
addr = IPv4Address(Endian::be_to_host<uint32_t>(addr_int));
|
|
return reached_end;
|
|
}
|
|
|
|
bool decrement(IPv6Address &addr) {
|
|
return decrement_buffer(addr);
|
|
}
|
|
|
|
IPv4Address last_address_from_mask(IPv4Address addr, IPv4Address mask) {
|
|
uint32_t addr_int = Endian::be_to_host<uint32_t>(addr),
|
|
mask_int = Endian::be_to_host<uint32_t>(mask);
|
|
return IPv4Address(Endian::host_to_be(addr_int | ~mask_int));
|
|
}
|
|
|
|
IPv6Address last_address_from_mask(IPv6Address addr, const IPv6Address &mask) {
|
|
IPv6Address::iterator addr_iter = addr.begin();
|
|
for(IPv6Address::const_iterator it = mask.begin(); it != mask.end(); ++it, ++addr_iter) {
|
|
*addr_iter = *addr_iter | ~*it;
|
|
}
|
|
return addr;
|
|
}
|
|
} // namespace Internals
|
|
} // namespace Tins
|