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implement Update for LeaseSet2

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orignal 2019-02-01 12:55:13 -05:00
parent bc3f02cb6b
commit 6643258618
2 changed files with 20 additions and 10 deletions
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18
libi2pd/LeaseSet.cpp
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@ -262,16 +262,23 @@ namespace data
void LeaseSet2::Update (const uint8_t * buf, size_t len, bool verifySignature) void LeaseSet2::Update (const uint8_t * buf, size_t len, bool verifySignature)
{ {
// shouldn't be called for now. Must be called from NetDb::AddLeaseSet later
SetBuffer (buf, len); SetBuffer (buf, len);
// TODO:verify signature if requested if (storeType != NETDB_STORE_TYPE_ENCRYPTED_LEASESET2)
ReadFromBuffer (buf, len, false, verifySignature);
// TODO: implement encrypted
} }
void LeaseSet2::ReadFromBuffer (const uint8_t * buf, size_t len) void LeaseSet2::ReadFromBuffer (const uint8_t * buf, size_t len, bool readIdentity, bool verifySignature)
{ {
// standard LS2 header // standard LS2 header
auto identity = std::make_shared<IdentityEx>(buf, len); std::shared_ptr<const IdentityEx> identity;
if (readIdentity)
{
identity = std::make_shared<IdentityEx>(buf, len);
SetIdentity (identity); SetIdentity (identity);
}
else
identity = GetIdentity ();
size_t offset = identity->GetFullLen (); size_t offset = identity->GetFullLen ();
if (offset + 8 >= len) return; if (offset + 8 >= len) return;
uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds) uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
@ -315,11 +322,14 @@ namespace data
} }
if (!s) return; if (!s) return;
offset += s; offset += s;
if (verifySignature || transientVerifier)
{
// verify signature // verify signature
bool verified = transientVerifier ? VerifySignature (transientVerifier, buf, len, offset) : bool verified = transientVerifier ? VerifySignature (transientVerifier, buf, len, offset) :
VerifySignature (identity, buf, len, offset); VerifySignature (identity, buf, len, offset);
SetIsValid (verified); SetIsValid (verified);
} }
}
template<typename Verifier> template<typename Verifier>
bool LeaseSet2::VerifySignature (Verifier& verifier, const uint8_t * buf, size_t len, size_t signatureOffset) bool LeaseSet2::VerifySignature (Verifier& verifier, const uint8_t * buf, size_t len, size_t signatureOffset)

2
libi2pd/LeaseSet.h
View file

@ -135,7 +135,7 @@ namespace data
private: private:
void ReadFromBuffer (const uint8_t * buf, size_t len); void ReadFromBuffer (const uint8_t * buf, size_t len, bool readIdentity = true, bool verifySignature = true);
void ReadFromBufferEncrypted (const uint8_t * buf, size_t len); void ReadFromBufferEncrypted (const uint8_t * buf, size_t len);
size_t ReadStandardLS2TypeSpecificPart (const uint8_t * buf, size_t len); size_t ReadStandardLS2TypeSpecificPart (const uint8_t * buf, size_t len);
size_t ReadMetaLS2TypeSpecificPart (const uint8_t * buf, size_t len); size_t ReadMetaLS2TypeSpecificPart (const uint8_t * buf, size_t len);