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use short I2NP messages

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orignal 2014-07-30 18:20:42 -04:00
parent 816c415f22
commit 0a5d4741af
2 changed files with 16 additions and 9 deletions
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17
I2NPProtocol.cpp
View File

@ -26,6 +26,11 @@ namespace i2p
return new I2NPMessageBuffer<I2NP_MAX_SHORT_MESSAGE_SIZE>();
}
I2NPMessage * NewI2NPMessage (size_t len)
{
return (len < I2NP_MAX_SHORT_MESSAGE_SIZE/2) ? NewI2NPShortMessage () : NewI2NPMessage ();
}
void DeleteI2NPMessage (I2NPMessage * msg)
{
delete msg;
@ -64,7 +69,7 @@ namespace i2p
I2NPMessage * CreateI2NPMessage (I2NPMessageType msgType, const uint8_t * buf, int len, uint32_t replyMsgID)
{
I2NPMessage * msg = NewI2NPMessage ();
I2NPMessage * msg = NewI2NPMessage (len);
memcpy (msg->GetPayload (), buf, len);
msg->len += len;
FillI2NPMessageHeader (msg, msgType, replyMsgID);
@ -164,7 +169,7 @@ namespace i2p
I2NPMessage * CreateDatabaseSearchReply (const i2p::data::IdentHash& ident,
const i2p::data::RouterInfo * floodfill)
{
I2NPMessage * m = NewI2NPMessage ();
I2NPMessage * m = NewI2NPShortMessage ();
uint8_t * buf = m->GetPayload ();
size_t len = 0;
memcpy (buf, ident, 32);
@ -188,7 +193,7 @@ namespace i2p
if (!router) // we send own RouterInfo
router = &context.GetRouterInfo ();
I2NPMessage * m = NewI2NPMessage ();
I2NPMessage * m = NewI2NPShortMessage ();
I2NPDatabaseStoreMsg * msg = (I2NPDatabaseStoreMsg *)m->GetPayload ();
memcpy (msg->key, router->GetIdentHash (), 32);
@ -213,7 +218,7 @@ namespace i2p
I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::LeaseSet * leaseSet)
{
if (!leaseSet) return nullptr;
I2NPMessage * m = NewI2NPMessage ();
I2NPMessage * m = NewI2NPShortMessage ();
I2NPDatabaseStoreMsg * msg = (I2NPDatabaseStoreMsg *)m->GetPayload ();
memcpy (msg->key, leaseSet->GetIdentHash (), 32);
msg->type = 1; // LeaseSet
@ -398,7 +403,7 @@ namespace i2p
I2NPMessage * CreateTunnelGatewayMsg (uint32_t tunnelID, const uint8_t * buf, size_t len)
{
I2NPMessage * msg = NewI2NPMessage ();
I2NPMessage * msg = NewI2NPMessage (len);
TunnelGatewayHeader * header = (TunnelGatewayHeader *)msg->GetPayload ();
header->tunnelID = htobe32 (tunnelID);
header->length = htobe16 (len);
@ -433,7 +438,7 @@ namespace i2p
I2NPMessage * CreateTunnelGatewayMsg (uint32_t tunnelID, I2NPMessageType msgType,
const uint8_t * buf, size_t len, uint32_t replyMsgID)
{
I2NPMessage * msg = NewI2NPMessage ();
I2NPMessage * msg = NewI2NPMessage (len);
size_t gatewayMsgOffset = sizeof (I2NPHeader) + sizeof (TunnelGatewayHeader);
msg->offset += gatewayMsgOffset;
msg->len += gatewayMsgOffset;

8
I2NPProtocol.h
View File

@ -106,10 +106,11 @@ namespace tunnel
struct I2NPMessage
{
uint8_t * buf;
size_t len, offset;
size_t len, offset, maxLen;
i2p::tunnel::InboundTunnel * from;
I2NPMessage (): buf (nullptr),len (sizeof (I2NPHeader) + 2), offset(2), from (nullptr) {};
I2NPMessage (): buf (nullptr),len (sizeof (I2NPHeader) + 2),
offset(2), maxLen (0), from (nullptr) {};
// reserve 2 bytes for NTCP header
I2NPHeader * GetHeader () { return (I2NPHeader *)GetBuffer (); };
uint8_t * GetPayload () { return GetBuffer () + sizeof(I2NPHeader); };
@ -151,12 +152,13 @@ namespace tunnel
template<int sz>
struct I2NPMessageBuffer: public I2NPMessage
{
I2NPMessageBuffer () { buf = m_Buffer; };
I2NPMessageBuffer () { buf = m_Buffer; maxLen = sz; };
uint8_t m_Buffer[sz];
};
I2NPMessage * NewI2NPMessage ();
I2NPMessage * NewI2NPShortMessage ();
I2NPMessage * NewI2NPMessage (size_t len);
void DeleteI2NPMessage (I2NPMessage * msg);
void FillI2NPMessageHeader (I2NPMessage * msg, I2NPMessageType msgType, uint32_t replyMsgID = 0);
void RenewI2NPMessageHeader (I2NPMessage * msg);