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Code Issues Releases Activity

don't try to decrypt dulpicate message

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orignal 2024-02-16 14:49:12 -05:00
parent 6439e227f6
commit 441e847de8
2 changed files with 17 additions and 5 deletions
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18
libi2pd/Garlic.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2023, The PurpleI2P Project
* Copyright (c) 2013-2024, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -588,11 +588,17 @@ namespace garlic
auto it = m_ECIESx25519Tags.find (tag);
if (it != m_ECIESx25519Tags.end ())
{
if (it->second.tagset && it->second.tagset->HandleNextMessage (buf, len, it->second.index))
if (!it->second.tagset) return true; // duplicate
if (it->second.tagset->HandleNextMessage (buf, len, it->second.index))
{
m_LastTagset = it->second.tagset;
it->second.tagset = nullptr; // mark as used
}
else
{
LogPrint (eLogError, "Garlic: Can't handle ECIES-X25519-AEAD-Ratchet message");
m_ECIESx25519Tags.erase (it);
m_ECIESx25519Tags.erase (it);
}
return true;
}
return false;
@ -879,6 +885,12 @@ namespace garlic
numExpiredTags = 0;
for (auto it = m_ECIESx25519Tags.begin (); it != m_ECIESx25519Tags.end ();)
{
if (!it->second.tagset)
{
// delete used tag
it = m_ECIESx25519Tags.erase (it);
continue;
}
if (it->second.tagset->IsExpired (ts) || it->second.tagset->IsIndexExpired (it->second.index))
{
it->second.tagset->DeleteSymmKey (it->second.index);

4
libi2pd/Garlic.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2022, The PurpleI2P Project
* Copyright (c) 2013-2024, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -221,7 +221,7 @@ namespace garlic
struct ECIESX25519AEADRatchetIndexTagset
{
int index;
ReceiveRatchetTagSetPtr tagset;
ReceiveRatchetTagSetPtr tagset; // null if used
};
class GarlicDestination: public i2p::data::LocalDestination