mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-11 07:10:36 +00:00
21930cf667
* initial relay side lns * fix typo * add reserved names and refactor test for dns * lns name decryption * all wired up (allegedly) * refact to use service::EncryptedName for LNS responses to include nonce with ciphertext * fully rwemove tag_lookup_job * replace lns cache with DecayingHashTable * check for lns name validity against the following rules: * not localhost.loki, loki.loki, or snode.loki * if it contains no dash then max 32 characters long, not including the .loki tld (and also assuming a leading subdomain has been stripped) * These are from general DNS requirements, and also enforced in registrations: * Must be all [A-Za-z0-9-]. (A-Z will be lower-cased by the RPC call). * cannot start or end with a - * max 63 characters long if it does contain a dash * cannot contain -- in the third and fourth characters unless it starts with xn-- * handle timeout in name lookup job by calling the right handler with std::nullopt
104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
#ifndef LLARP_DNS_MESSAGE_HPP
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#define LLARP_DNS_MESSAGE_HPP
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#include <dns/serialize.hpp>
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#include <dns/rr.hpp>
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#include <dns/question.hpp>
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namespace llarp
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{
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namespace dns
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{
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struct SRVData;
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using MsgID_t = uint16_t;
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using Fields_t = uint16_t;
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using Count_t = uint16_t;
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struct MessageHeader : public Serialize
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{
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static constexpr size_t Size = 12;
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MessageHeader() = default;
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MsgID_t id;
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Fields_t fields;
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Count_t qd_count;
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Count_t an_count;
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Count_t ns_count;
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Count_t ar_count;
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bool
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Encode(llarp_buffer_t* buf) const override;
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bool
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Decode(llarp_buffer_t* buf) override;
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bool
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operator==(const MessageHeader& other) const
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{
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return id == other.id && fields == other.fields && qd_count == other.qd_count
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&& an_count == other.an_count && ns_count == other.ns_count
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&& ar_count == other.ar_count;
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}
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};
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struct Message : public Serialize
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{
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Message(const MessageHeader& hdr);
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Message(Message&& other);
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Message(const Message& other);
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void
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AddNXReply(RR_TTL_t ttl = 1);
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void
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AddServFail(RR_TTL_t ttl = 30);
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void
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AddMXReply(std::string name, uint16_t priority, RR_TTL_t ttl = 1);
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void
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AddCNAMEReply(std::string name, RR_TTL_t ttl = 1);
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void
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AddINReply(llarp::huint128_t addr, bool isV6, RR_TTL_t ttl = 1);
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void
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AddAReply(std::string name, RR_TTL_t ttl = 1);
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void
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AddSRVReply(std::vector<SRVData> records, RR_TTL_t ttl = 1);
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void
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AddNSReply(std::string name, RR_TTL_t ttl = 1);
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bool
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Encode(llarp_buffer_t* buf) const override;
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bool
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Decode(llarp_buffer_t* buf) override;
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std::ostream&
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print(std::ostream& stream, int level, int spaces) const;
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MsgID_t hdr_id;
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Fields_t hdr_fields;
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std::vector<Question> questions;
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std::vector<ResourceRecord> answers;
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std::vector<ResourceRecord> authorities;
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std::vector<ResourceRecord> additional;
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};
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inline std::ostream&
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operator<<(std::ostream& out, const Message& msg)
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{
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msg.print(out, -1, -1);
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return out;
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}
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} // namespace dns
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} // namespace llarp
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#endif
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