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Code Issues Releases Wiki Activity

Added more DHCP options.

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This commit is contained in:
Matias Fontanini
2011-08-18 11:04:22 -03:00
parent 24e314283f
commit 9efee446f0
3 changed files with 103 additions and 10 deletions
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6
src/udp.cpp
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@@ -61,14 +61,14 @@ void Tins::UDP::write_serialization(uint8_t *buffer, uint32_t total_sz, const PD
const Tins::IP *ip_packet = dynamic_cast<const Tins::IP*>(parent);
if(inner_pdu())
length(sizeof(udphdr) + inner_pdu()->size());
std::memcpy(buffer, &_udp, sizeof(udphdr));
if(!_udp.check && ip_packet) {
uint32_t checksum = PDU::pseudoheader_checksum(ip_packet->source_address(), ip_packet->dest_address(), size(), IPPROTO_UDP) +
PDU::do_checksum(buffer + sizeof(udphdr), buffer + total_sz) + PDU::do_checksum((uint8_t*)&_udp, ((uint8_t*)&_udp) + sizeof(udphdr));
PDU::do_checksum(buffer, buffer + total_sz);
while (checksum >> 16)
checksum = (checksum & 0xffff)+(checksum >> 16);
_udp.check = Utils::net_to_host_s(~checksum);
((udphdr*)buffer)->check = Utils::net_to_host_s(~checksum);
}
std::memcpy(buffer, &_udp, sizeof(udphdr));
_udp.check = 0;
}