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Addressing the UDP reflection amplification attack: https://github.com/SoftEtherVPN/SoftEtherVPN/issues/1001

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This commit is contained in:
Daiyuu Nobori
2019-10-22 11:14:05 +09:00
parent 46d8da6744
commit 4d42f450b2
2 changed files with 23 additions and 9 deletions
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3
src/Cedar/Proto_OpenVPN.h
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@ -108,6 +108,8 @@ struct OPENVPN_CONTROL_PACKET
UINT DataSize; // Data size
UCHAR *Data; // Data body
UINT64 NextSendTime; // Scheduled next transmission time
bool NoResend; // Disable re-sending
UINT NumSent; // How many times we have sent this packet
};
// OpenVPN packet
@ -260,6 +262,7 @@ void OvsSendPacketRawNow(OPENVPN_SERVER *s, OPENVPN_SESSION *se, void *data, UIN
void OvsProcessRecvControlPacket(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_CHANNEL *c, OPENVPN_PACKET *p);
void OvsSendControlPacket(OPENVPN_CHANNEL *c, UCHAR opcode, UCHAR *data, UINT data_size);
void OvsSendControlPacketEx(OPENVPN_CHANNEL *c, UCHAR opcode, UCHAR *data, UINT data_size, bool no_resend);
void OvsSendControlPacketWithAutoSplit(OPENVPN_CHANNEL *c, UCHAR opcode, UCHAR *data, UINT data_size);
void OvsFreeControlPacket(OPENVPN_CONTROL_PACKET *p);
void OvsDeleteFromSendingControlPacketList(OPENVPN_CHANNEL *c, UINT num_acks, UINT *acks);