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methods for I2NP header access

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orignal 2015-01-01 16:51:15 -05:00
parent c5c0d2060c
commit bfc6274cd8
2 changed files with 43 additions and 20 deletions
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28
I2NPProtocol.cpp
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@ -1,7 +1,6 @@
#include <string.h>
#include <atomic>
#include "I2PEndian.h"
#include <cryptopp/sha.h>
#include <cryptopp/gzip.h>
#include "ElGamal.h"
#include "Timestamp.h"
@ -40,31 +39,26 @@ namespace i2p
static std::atomic<uint32_t> I2NPmsgID(0); // TODO: create class
void FillI2NPMessageHeader (I2NPMessage * msg, I2NPMessageType msgType, uint32_t replyMsgID)
{
I2NPHeader * header = msg->GetHeader ();
header->typeID = msgType;
msg->SetTypeID (msgType);
if (replyMsgID) // for tunnel creation
header->msgID = htobe32 (replyMsgID);
msg->SetMsgID (replyMsgID);
else
{
header->msgID = htobe32 (I2NPmsgID);
msg->SetMsgID (I2NPmsgID);
I2NPmsgID++;
}
header->expiration = htobe64 (i2p::util::GetMillisecondsSinceEpoch () + 5000); // TODO: 5 secs is a magic number
int len = msg->GetLength () - sizeof (I2NPHeader);
header->size = htobe16 (len);
uint8_t hash[32];
CryptoPP::SHA256().CalculateDigest(hash, msg->GetPayload (), len);
header->chks = hash[0];
}
msg->SetExpiration (i2p::util::GetMillisecondsSinceEpoch () + 5000); // TODO: 5 secs is a magic number
msg->UpdateSize ();
msg->UpdateChks ();
}
void RenewI2NPMessageHeader (I2NPMessage * msg)
{
if (msg)
{
I2NPHeader * header = msg->GetHeader ();
header->msgID = htobe32 (I2NPmsgID);
msg->SetMsgID (I2NPmsgID);
I2NPmsgID++;
header->expiration = htobe64 (i2p::util::GetMillisecondsSinceEpoch () + 5000);
msg->SetExpiration (i2p::util::GetMillisecondsSinceEpoch () + 5000);
}
}
@ -589,7 +583,7 @@ namespace i2p
{
if (msg)
{
switch (msg->GetHeader ()->typeID)
switch (msg->GetTypeID ())
{
case eI2NPTunnelData:
LogPrint ("TunnelData");