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LookupServer: Split mDNS flags into separate field

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This commit is contained in:
Gunnar Beutner 2021-05-07 23:58:46 +02:00 • committed by Andreas Kling
parent 233a9554a5
commit 6e70888315
6 changed files with 31 additions and 13 deletions
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12
Userland/Services/LookupServer/DNSPacket.cpp
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@ -56,12 +56,12 @@ ByteBuffer DNSPacket::to_byte_buffer() const
for (auto& question : m_questions) {
stream << question.name();
stream << htons(question.record_type());
stream << htons(question.class_code());
stream << htons(question.raw_class_code());
}
for (auto& answer : m_answers) {
stream << answer.name();
stream << htons(answer.type());
stream << htons(answer.class_code());
stream << htons(answer.raw_class_code());
stream << htonl(answer.ttl());
if (answer.type() == T_PTR) {
DNSName name { answer.record_data() };
@ -129,7 +129,9 @@ Optional<DNSPacket> DNSPacket::from_raw_packet(const u8* raw_data, size_t raw_si
NetworkOrdered<u16> class_code;
};
auto& record_and_class = *(const RawDNSAnswerQuestion*)&raw_data[offset];
packet.m_questions.empend(name, record_and_class.record_type, record_and_class.class_code);
u16 class_code = record_and_class.class_code & ~MDNS_WANTS_UNICAST_RESPONSE;
bool mdns_wants_unicast_response = record_and_class.class_code & MDNS_WANTS_UNICAST_RESPONSE;
packet.m_questions.empend(name, record_and_class.record_type, class_code, mdns_wants_unicast_response);
offset += 4;
auto& question = packet.m_questions.last();
dbgln_if(LOOKUPSERVER_DEBUG, "Question #{}: name=_{}_, type={}, class={}", i, question.name(), question.record_type(), question.class_code());
@ -154,7 +156,9 @@ Optional<DNSPacket> DNSPacket::from_raw_packet(const u8* raw_data, size_t raw_si
dbgln("data=(unimplemented record type {})", record.type());
}
dbgln_if(LOOKUPSERVER_DEBUG, "Answer #{}: name=_{}_, type={}, ttl={}, length={}, data=_{}_", i, name, record.type(), record.ttl(), record.data_length(), data);
packet.m_answers.empend(name, record.type(), record.record_class(), record.ttl(), data);
u16 class_code = record.record_class() & ~MDNS_CACHE_FLUSH;
bool mdns_cache_flush = record.record_class() & MDNS_CACHE_FLUSH;
packet.m_answers.empend(name, record.type(), class_code, record.ttl(), data, mdns_cache_flush);
offset += record.data_length();
}