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https://github.com/oxen-io/lokinet.git
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103 lines
2.5 KiB
C++
103 lines
2.5 KiB
C++
#include <service/info.hpp>
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#include <crypto/crypto.hpp>
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#include <service/address.hpp>
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#include <util/buffer.hpp>
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#include <cassert>
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#include <sodium/crypto_generichash.h>
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namespace llarp
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{
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namespace service
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{
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bool
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ServiceInfo::Verify(const llarp_buffer_t& payload,
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const Signature& sig) const
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{
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return CryptoManager::instance()->verify(signkey, payload, sig);
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}
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bool
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ServiceInfo::DecodeKey(const llarp_buffer_t& key, llarp_buffer_t* val)
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{
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bool read = false;
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if(!BEncodeMaybeReadDictEntry("e", enckey, read, key, val))
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return false;
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if(!BEncodeMaybeReadDictEntry("s", signkey, read, key, val))
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return false;
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if(!BEncodeMaybeReadDictInt("v", version, read, key, val))
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return false;
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if(!BEncodeMaybeReadDictEntry("x", vanity, read, key, val))
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return false;
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return read;
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}
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bool
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ServiceInfo::BEncode(llarp_buffer_t* buf) const
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{
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if(!bencode_start_dict(buf))
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return false;
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if(!BEncodeWriteDictEntry("e", enckey, buf))
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return false;
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if(!BEncodeWriteDictEntry("s", signkey, buf))
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return false;
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if(!BEncodeWriteDictInt("v", LLARP_PROTO_VERSION, buf))
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return false;
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if(!vanity.IsZero())
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{
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if(!BEncodeWriteDictEntry("x", vanity, buf))
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return false;
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}
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return bencode_end(buf);
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}
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std::string
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ServiceInfo::Name() const
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{
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if(m_CachedAddr.IsZero())
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{
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Address addr;
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CalculateAddress(addr.as_array());
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return addr.ToString();
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}
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return m_CachedAddr.ToString();
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}
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bool ServiceInfo::CalculateAddress(std::array< byte_t, 32 >& data) const
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{
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std::array< byte_t, 256 > tmp;
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llarp_buffer_t buf(tmp);
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if(!BEncode(&buf))
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return false;
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return crypto_generichash_blake2b(data.data(), data.size(), buf.base,
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buf.cur - buf.base, nullptr, 0)
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!= -1;
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}
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bool
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ServiceInfo::UpdateAddr()
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{
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if(m_CachedAddr.IsZero())
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{
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return CalculateAddress(m_CachedAddr.as_array());
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}
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return true;
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}
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std::ostream&
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ServiceInfo::print(std::ostream& stream, int level, int spaces) const
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{
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Printer printer(stream, level, spaces);
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printer.printAttribute("e", enckey);
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printer.printAttribute("s", signkey);
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printer.printAttribute("v", version);
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printer.printAttribute("x", vanity);
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return stream;
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}
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} // namespace service
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} // namespace llarp
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