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Cedar: handle UDP acceleration and R-UDP versions

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This commit is contained in:
dnobori 2019-11-22 00:51:09 +01:00 committed by Davide Beatrici
parent 6b08a451da
commit 1d2a58b172
9 changed files with 252 additions and 48 deletions
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1
src/Cedar/CedarType.h
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@ -576,6 +576,7 @@ typedef struct IPC_ASYNC IPC_ASYNC;
typedef struct IPC_PARAM IPC_PARAM;
typedef struct IPC_DHCP_RELEASE_QUEUE IPC_DHCP_RELEASE_QUEUE;
typedef struct IPC_MSCHAP_V2_AUTHINFO IPC_MSCHAP_V2_AUTHINFO;
typedef struct IPC_SESSION_SHARED_BUFFER_DATA IPC_SESSION_SHARED_BUFFER_DATA;
// ==============================================================

14
src/Cedar/Client.c
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@ -5822,8 +5822,22 @@ void CiGetSessionStatus(RPC_CLIENT_GET_CONNECTION_STATUS *st, SESSION *s)
StrCpy(st->ProtocolDetails, sizeof(st->ProtocolDetails), s->ProtocolDetails);
Trim(st->ProtocolDetails);
// UDP acceleration function
if (s->IpcSessionShared != NULL && IsEmptyStr(s->IpcSessionShared->ProtocolDetails) == false)
{
char tmp[sizeof(s->IpcSessionShared->ProtocolDetails)];
StrCpy(tmp, sizeof(tmp), s->IpcSessionShared->ProtocolDetails);
Trim(tmp);
StrCat(st->ProtocolDetails, sizeof(st->ProtocolDetails), " ");
StrCat(st->ProtocolDetails, sizeof(st->ProtocolDetails), tmp);
st->IsUdpAccelerationEnabled = s->IpcSessionShared->EnableUdpAccel;
st->IsUsingUdpAcceleration = s->IpcSessionShared->UsingUdpAccel;
}
else
{
st->IsUdpAccelerationEnabled = s->UseUdpAcceleration;
st->IsUsingUdpAcceleration = s->IsUsingUdpAcceleration;
}
// Session key
Copy(st->SessionKey, s->SessionKey, SHA1_SIZE);
// Policy

2
src/Cedar/Connection.c
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@ -2684,6 +2684,8 @@ BLOCK *NewBlock(void *data, UINT size, int compress)
b = MallocFast(sizeof(BLOCK));
b->RawFlagRetUdpAccel = 0;
b->IsFlooding = false;
b->PriorityQoS = b->Ttl = b->Param1 = 0;

1
src/Cedar/Connection.h
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@ -155,6 +155,7 @@ struct BLOCK
UINT Ttl; // TTL value (Used only in ICMP NAT of Virtual.c)
UINT Param1; // Parameter 1
bool IsFlooding; // Is flooding packet
UCHAR RawFlagRetUdpAccel; // Raw flag returned by UDP accel
};
// Connection structure

7
src/Cedar/IPC.c
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@ -242,6 +242,7 @@ IPC *NewIPC(CEDAR *cedar, char *client_name, char *postfix, char *hubname, char
NODE_INFO info;
BUF *b;
UCHAR mschap_v2_server_response_20[20];
UINT64 u64;
// Validate arguments
if (cedar == NULL || username == NULL || password == NULL || client_hostname == NULL)
{
@ -457,6 +458,10 @@ IPC *NewIPC(CEDAR *cedar, char *client_name, char *postfix, char *hubname, char
Debug("IPC: Session = %s, Connection = %s, Mac = %s\n", ipc->SessionName, ipc->ConnectionName, macstr);
u64 = PackGetInt64(p, "IpcSessionSharedBuffer");
ipc->IpcSessionSharedBuffer = (SHARED_BUFFER *)u64;
ipc->IpcSessionShared = ipc->IpcSessionSharedBuffer->Data;
FreePack(p);
ReleaseSock(a);
@ -591,6 +596,8 @@ void FreeIPC(IPC *ipc)
ReleaseQueue(ipc->IPv4ReceivedQueue);
ReleaseSharedBuffer(ipc->IpcSessionSharedBuffer);
Free(ipc);
}

10
src/Cedar/IPC.h
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@ -43,6 +43,14 @@ struct IPC_DHCP_RELEASE_QUEUE
UCHAR MacAddress[6];
};
// IPC_SESSION_SHARED_BUFFER_DATA
struct IPC_SESSION_SHARED_BUFFER_DATA
{
char ProtocolDetails[256];
bool EnableUdpAccel;
bool UsingUdpAccel;
};
// IPC_PARAM
struct IPC_PARAM
{
@ -106,6 +114,8 @@ struct IPC
TUBE_FLUSH_LIST *FlushList; // Tube Flush List
UCHAR MsChapV2_ServerResponse[20]; // Server response
DHCP_CLASSLESS_ROUTE_TABLE ClasslessRoute; // Classless routing table
SHARED_BUFFER *IpcSessionSharedBuffer; // A shared buffer between IPC and Session
IPC_SESSION_SHARED_BUFFER_DATA *IpcSessionShared; // Shared data between IPC and Session
UINT Layer;
};

199
src/Cedar/Protocol.c
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@ -1077,12 +1077,17 @@ bool ServerAccept(CONNECTION *c)
bool half_connection;
UINT adjust_mss;
bool use_udp_acceleration_client;
UINT client_udp_acceleration_max_version = 1;
UINT udp_acceleration_version = 1;
UINT client_rudp_bulk_max_version = 1;
UINT rudp_bulk_version = 1;
bool support_hmac_on_udp_acceleration_client = false;
bool support_udp_accel_fast_disconnect_detect;
bool use_hmac_on_udp_acceleration = false;
bool supress_return_pack_error = false;
IP udp_acceleration_client_ip;
UCHAR udp_acceleration_client_key[UDP_ACCELERATION_COMMON_KEY_SIZE];
UCHAR udp_acceleration_client_key[UDP_ACCELERATION_COMMON_KEY_SIZE_V1];
UCHAR udp_acceleration_client_key_v2[UDP_ACCELERATION_COMMON_KEY_SIZE_V2];
UINT udp_acceleration_client_port;
bool admin_mode = false;
UINT direction;
@ -1144,6 +1149,7 @@ bool ServerAccept(CONNECTION *c)
Zero(&udp_acceleration_client_ip, sizeof(udp_acceleration_client_ip));
udp_acceleration_client_port = 0;
Zero(udp_acceleration_client_key, sizeof(udp_acceleration_client_key));
Zero(udp_acceleration_client_key_v2, sizeof(udp_acceleration_client_key_v2));
Zero(&winver, sizeof(winver));
@ -1453,6 +1459,16 @@ bool ServerAccept(CONNECTION *c)
client_id = PackGetInt(p, "client_id");
adjust_mss = PackGetInt(p, "adjust_mss");
use_udp_acceleration_client = PackGetBool(p, "use_udp_acceleration");
client_udp_acceleration_max_version = PackGetInt(p, "udp_acceleration_max_version");
if (client_udp_acceleration_max_version == 0)
{
client_udp_acceleration_max_version = 1;
}
client_rudp_bulk_max_version = PackGetInt(p, "rudp_bulk_max_version");
if (client_rudp_bulk_max_version == 0)
{
client_rudp_bulk_max_version = 1;
}
support_hmac_on_udp_acceleration_client = PackGetBool(p, "support_hmac_on_udp_acceleration");
support_udp_accel_fast_disconnect_detect = PackGetBool(p, "support_udp_accel_fast_disconnect_detect");
support_bulk_on_rudp = PackGetBool(p, "support_bulk_on_rudp");
@ -1522,7 +1538,7 @@ bool ServerAccept(CONNECTION *c)
if (support_bulk_on_rudp && c->FirstSock != NULL && c->FirstSock->IsRUDPSocket &&
c->FirstSock->BulkRecvKey != NULL && c->FirstSock->BulkSendKey != NULL)
{
// RAllow UDP bulk transfer if the client side supports
// Allow UDP bulk transfer if the client side supports
// in the case of using R-UDP Socket
enable_bulk_on_rudp = true;
@ -1537,9 +1553,11 @@ bool ServerAccept(CONNECTION *c)
if (use_udp_acceleration_client)
{
PackGetData2(p, "udp_acceleration_client_key", udp_acceleration_client_key, UDP_ACCELERATION_COMMON_KEY_SIZE_V1);
PackGetData2(p, "udp_acceleration_client_key_v2", udp_acceleration_client_key_v2, UDP_ACCELERATION_COMMON_KEY_SIZE_V2);
// Get the parameters for the UDP acceleration function
if (PackGetIp(p, "udp_acceleration_client_ip", &udp_acceleration_client_ip) == false ||
PackGetData2(p, "udp_acceleration_client_key", udp_acceleration_client_key, UDP_ACCELERATION_COMMON_KEY_SIZE) == false)
if (PackGetIp(p, "udp_acceleration_client_ip", &udp_acceleration_client_ip) == false)
{
use_udp_acceleration_client = false;
}
@ -2852,6 +2870,22 @@ bool ServerAccept(CONNECTION *c)
s->UseUdpAcceleration = true;
s->UdpAccelFastDisconnectDetect = support_udp_accel_fast_disconnect_detect;
udp_acceleration_version = 1;
if (client_udp_acceleration_max_version >= 2)
{
udp_acceleration_version = 2;
}
}
if (client_rudp_bulk_max_version >= 2)
{
rudp_bulk_version = 2;
}
if (s->EnableBulkOnRUDP)
{
AddProtocolDetailsKeyValueInt(s->ProtocolDetails, sizeof(s->ProtocolDetails), "RUDP_Bulk_Ver", s->BulkOnRUDPVersion);
}
if (hub->Option != NULL && hub->Option->DisableUdpAcceleration)
@ -2875,6 +2909,7 @@ bool ServerAccept(CONNECTION *c)
Debug("UseUdpAcceleration = %u\n", s->UseUdpAcceleration);
Debug("UseHMacOnUdpAcceleration = %u\n", s->UseHMacOnUdpAcceleration);
Debug("UdpAccelerationVersion = %u\n", s->UdpAccelerationVersion);
if (s->UseUdpAcceleration)
{
@ -2890,8 +2925,11 @@ bool ServerAccept(CONNECTION *c)
}
else
{
if (UdpAccelInitServer(s->UdpAccel, udp_acceleration_client_key, &udp_acceleration_client_ip, udp_acceleration_client_port,
&c->FirstSock->RemoteIP) == false)
s->UdpAccel->Version = udp_acceleration_version;
if (UdpAccelInitServer(s->UdpAccel,
s->UdpAccel->Version == 2 ? udp_acceleration_client_key_v2 : udp_acceleration_client_key,
&udp_acceleration_client_ip, udp_acceleration_client_port, &c->FirstSock->RemoteIP) == false)
{
Debug("UdpAccelInitServer Failed.\n");
s->UseUdpAcceleration = false;
@ -2905,6 +2943,12 @@ bool ServerAccept(CONNECTION *c)
}
s->UdpAccel->UseHMac = s->UseHMacOnUdpAcceleration;
AddProtocolDetailsKeyValueInt(s->ProtocolDetails, sizeof(s->ProtocolDetails), "UDPAccel_Ver", s->UdpAccel->Version);
AddProtocolDetailsStr(s->ProtocolDetails, sizeof(s->ProtocolDetails), s->UdpAccel->Version > 1 ? "ChaCha20-Poly1305" : "RC4");
AddProtocolDetailsKeyValueInt(s->ProtocolDetails, sizeof(s->ProtocolDetails), "UDPAccel_MSS", UdpAccelCalcMss(s->UdpAccel));
}
}
@ -3337,6 +3381,19 @@ bool ServerAccept(CONNECTION *c)
// Add the socket of this connection to the connection list of the session (TCP)
sock = c->FirstSock;
if (sock->IsRUDPSocket && sock->BulkRecvKey != NULL && sock->BulkSendKey != NULL)
{
if (s->BulkRecvKeySize != 0 && s->BulkSendKeySize != 0)
{
// Restore R-UDP bulk send/recv keys for additional connections
Copy(sock->BulkRecvKey->Data, s->BulkRecvKey, s->BulkRecvKeySize);
sock->BulkRecvKey->Size = s->BulkRecvKeySize;
Copy(sock->BulkSendKey->Data, s->BulkSendKey, s->BulkSendKeySize);
sock->BulkSendKey->Size = s->BulkSendKeySize;
}
}
ts = NewTcpSock(sock);
SetTimeout(sock, CONNECTING_TIMEOUT);
direction = TCP_BOTH;
@ -3984,6 +4041,19 @@ bool ClientAdditionalConnect(CONNECTION *c, THREAD *t)
Debug("Additional Connect Succeed!\n");
if (s->IsRUDPSocket && s->BulkRecvKey != NULL && s->BulkSendKey != NULL)
{
// Restore R-UDP bulk send/recv keys for additional connections
if (c->Session->BulkRecvKeySize != 0 && c->Session->BulkSendKeySize != 0)
{
Copy(s->BulkRecvKey->Data, c->Session->BulkRecvKey, c->Session->BulkRecvKeySize);
s->BulkRecvKey->Size = c->Session->BulkRecvKeySize;
Copy(s->BulkSendKey->Data, c->Session->BulkSendKey, c->Session->BulkSendKeySize);
s->BulkSendKey->Size = c->Session->BulkSendKeySize;
}
}
// Success the additional connection
// Add to the TcpSockList of the connection
ts = NewTcpSock(s);
@ -4732,22 +4802,44 @@ REDIRECTED:
sess->EnableBulkOnRUDP = false;
sess->EnableHMacOnBulkOfRUDP = false;
if (s->IsRUDPSocket && s->BulkRecvKey != NULL && s->BulkSendKey != NULL)
if (s != NULL && s->IsRUDPSocket && s->BulkRecvKey != NULL && s->BulkSendKey != NULL)
{
// Bulk transfer on R-UDP
sess->EnableHMacOnBulkOfRUDP = PackGetBool(p, "enable_hmac_on_bulk_of_rudp");
sess->BulkOnRUDPVersion = PackGetInt(p, "rudp_bulk_version");
if (PackGetBool(p, "enable_bulk_on_rudp"))
{
// Receive the key
UCHAR key_send[SHA1_SIZE];
UCHAR key_recv[SHA1_SIZE];
UCHAR key_send[RUDP_BULK_KEY_SIZE_MAX];
UCHAR key_recv[RUDP_BULK_KEY_SIZE_MAX];
if (PackGetData2(p, "bulk_on_rudp_send_key", key_send, SHA1_SIZE) &&
PackGetData2(p, "bulk_on_rudp_recv_key", key_recv, SHA1_SIZE))
UINT key_size = SHA1_SIZE;
if (sess->BulkOnRUDPVersion == 2)
{
key_size = RUDP_BULK_KEY_SIZE_V2;
}
if (PackGetData2(p, "bulk_on_rudp_send_key", key_send, key_size) &&
PackGetData2(p, "bulk_on_rudp_recv_key", key_recv, key_size))
{
sess->EnableBulkOnRUDP = true;
Copy(s->BulkSendKey->Data, key_send, SHA1_SIZE);
Copy(s->BulkRecvKey->Data, key_recv, SHA1_SIZE);
Copy(s->BulkSendKey->Data, key_send, key_size);
Copy(s->BulkRecvKey->Data, key_recv, key_size);
s->BulkSendKey->Size = key_size;
s->BulkRecvKey->Size = key_size;
// Backup R-UDP bulk send/recv keys for additional connections
Copy(sess->BulkSendKey, s->BulkSendKey->Data, s->BulkSendKey->Size);
sess->BulkSendKeySize = s->BulkSendKey->Size;
Copy(sess->BulkRecvKey, s->BulkRecvKey->Data, s->BulkRecvKey->Size);
sess->BulkRecvKeySize = s->BulkRecvKey->Size;
AddProtocolDetailsKeyValueInt(sess->ProtocolDetails, sizeof(sess->ProtocolDetails), "RUDP_Bulk_Ver", sess->BulkOnRUDPVersion);
}
}
@ -4757,6 +4849,7 @@ REDIRECTED:
Debug("EnableBulkOnRUDP = %u\n", sess->EnableBulkOnRUDP);
Debug("EnableHMacOnBulkOfRUDP = %u\n", sess->EnableHMacOnBulkOfRUDP);
Debug("EnableUdpRecovery = %u\n", sess->EnableUdpRecovery);
Debug("BulkOnRUDPVersion = %u\n", sess->BulkOnRUDPVersion);
sess->UseUdpAcceleration = false;
sess->IsUsingUdpAcceleration = false;
@ -4770,8 +4863,14 @@ REDIRECTED:
if (PackGetBool(p, "use_udp_acceleration"))
{
UINT udp_acceleration_version = PackGetInt(p, "udp_acceleration_version");
IP udp_acceleration_server_ip;
if (udp_acceleration_version == 0)
{
udp_acceleration_version = 1;
}
sess->UdpAccelFastDisconnectDetect = PackGetBool(p, "udp_accel_fast_disconnect_detect");
if (PackGetIp(p, "udp_acceleration_server_ip", &udp_acceleration_server_ip))
@ -4785,14 +4884,18 @@ REDIRECTED:
if (udp_acceleration_server_port != 0)
{
UCHAR udp_acceleration_server_key[UDP_ACCELERATION_COMMON_KEY_SIZE];
if (PackGetData2(p, "udp_acceleration_server_key", udp_acceleration_server_key, UDP_ACCELERATION_COMMON_KEY_SIZE))
{
UCHAR udp_acceleration_server_key[UDP_ACCELERATION_COMMON_KEY_SIZE_V1];
UCHAR udp_acceleration_server_key_v2[UDP_ACCELERATION_COMMON_KEY_SIZE_V2];
UINT server_cookie = PackGetInt(p, "udp_acceleration_server_cookie");
UINT client_cookie = PackGetInt(p, "udp_acceleration_client_cookie");
bool encryption = PackGetBool(p, "udp_acceleration_use_encryption");
Zero(udp_acceleration_server_key, sizeof(udp_acceleration_server_key));
Zero(udp_acceleration_server_key_v2, sizeof(udp_acceleration_server_key_v2));
PackGetData2(p, "udp_acceleration_server_key", udp_acceleration_server_key, UDP_ACCELERATION_COMMON_KEY_SIZE_V1);
PackGetData2(p, "udp_acceleration_server_key_v2", udp_acceleration_server_key_v2, UDP_ACCELERATION_COMMON_KEY_SIZE_V2);
if (server_cookie != 0 && client_cookie != 0)
{
IP remote_ip;
@ -4804,7 +4907,14 @@ REDIRECTED:
Copy(&remote_ip, &c->Session->AzureRealServerGlobalIp, sizeof(IP));
}
if (UdpAccelInitClient(sess->UdpAccel, udp_acceleration_server_key,
sess->UdpAccel->Version = 1;
if (udp_acceleration_version == 2)
{
sess->UdpAccel->Version = 2;
}
if (UdpAccelInitClient(sess->UdpAccel,
sess->UdpAccel->Version == 2 ? udp_acceleration_server_key_v2 : udp_acceleration_server_key,
&udp_acceleration_server_ip, udp_acceleration_server_port,
server_cookie, client_cookie, &remote_ip) == false)
{
@ -4824,7 +4934,12 @@ REDIRECTED:
{
sess->UdpAccel->UseHMac = true;
}
}
AddProtocolDetailsKeyValueInt(sess->ProtocolDetails, sizeof(sess->ProtocolDetails), "UDPAccel_Ver", sess->UdpAccel->Version);
AddProtocolDetailsStr(sess->ProtocolDetails, sizeof(sess->ProtocolDetails), sess->UdpAccel->Version > 1 ? "ChaCha20-Poly1305" : "RC4");
AddProtocolDetailsKeyValueInt(sess->ProtocolDetails, sizeof(sess->ProtocolDetails), "UDPAccel_MSS", UdpAccelCalcMss(sess->UdpAccel));
}
}
}
@ -5051,15 +5166,25 @@ PACK *PackWelcome(SESSION *s)
// Virtual HUB name
PackAddStr(p, "IpcHubName", s->Hub->Name);
// Shared Buffer
s->IpcSessionSharedBuffer = NewSharedBuffer(NULL, sizeof(IPC_SESSION_SHARED_BUFFER_DATA));
AddRef(s->IpcSessionSharedBuffer->Ref);
s->IpcSessionShared = s->IpcSessionSharedBuffer->Data;
PackAddInt64(p, "IpcSessionSharedBuffer", (UINT64)s->IpcSessionSharedBuffer);
}
if (s->UdpAccel != NULL)
{
// UDP acceleration function
PackAddBool(p, "use_udp_acceleration", true);
PackAddInt(p, "udp_acceleration_version", s->UdpAccel->Version);
PackAddIp(p, "udp_acceleration_server_ip", &s->UdpAccel->MyIp);
PackAddInt(p, "udp_acceleration_server_port", s->UdpAccel->MyPort);
PackAddData(p, "udp_acceleration_server_key", s->UdpAccel->MyKey, UDP_ACCELERATION_COMMON_KEY_SIZE);
PackAddData(p, "udp_acceleration_server_key", s->UdpAccel->MyKey, sizeof(s->UdpAccel->MyKey));
PackAddData(p, "udp_acceleration_server_key_v2", s->UdpAccel->MyKey_V2, sizeof(s->UdpAccel->MyKey_V2));
PackAddInt(p, "udp_acceleration_server_cookie", s->UdpAccel->MyCookie);
PackAddInt(p, "udp_acceleration_client_cookie", s->UdpAccel->YourCookie);
PackAddBool(p, "udp_acceleration_use_encryption", !s->UdpAccel->PlainTextMode);
@ -5072,9 +5197,35 @@ PACK *PackWelcome(SESSION *s)
// Allow bulk transfer on R-UDP
PackAddBool(p, "enable_bulk_on_rudp", true);
PackAddBool(p, "enable_hmac_on_bulk_of_rudp", s->EnableHMacOnBulkOfRUDP);
PackAddInt(p, "rudp_bulk_version", s->BulkOnRUDPVersion);
if (s->BulkOnRUDPVersion == 2)
{
PackAddData(p, "bulk_on_rudp_send_key", s->Connection->FirstSock->BulkRecvKey->Data, RUDP_BULK_KEY_SIZE_V2);
s->Connection->FirstSock->BulkRecvKey->Size = RUDP_BULK_KEY_SIZE_V2;
PackAddData(p, "bulk_on_rudp_recv_key", s->Connection->FirstSock->BulkSendKey->Data, RUDP_BULK_KEY_SIZE_V2);
s->Connection->FirstSock->BulkSendKey->Size = RUDP_BULK_KEY_SIZE_V2;
}
else
{
PackAddData(p, "bulk_on_rudp_send_key", s->Connection->FirstSock->BulkRecvKey->Data, SHA1_SIZE);
s->Connection->FirstSock->BulkRecvKey->Size = SHA1_SIZE;
PackAddData(p, "bulk_on_rudp_recv_key", s->Connection->FirstSock->BulkSendKey->Data, SHA1_SIZE);
s->Connection->FirstSock->BulkSendKey->Size = SHA1_SIZE;
}
// Backup R-UDP bulk send/recv keys for additional connections
Copy(s->BulkSendKey, s->Connection->FirstSock->BulkSendKey->Data,
s->Connection->FirstSock->BulkSendKey->Size);
s->BulkSendKeySize = s->Connection->FirstSock->BulkSendKey->Size;
Copy(s->BulkRecvKey, s->Connection->FirstSock->BulkRecvKey->Data,
s->Connection->FirstSock->BulkRecvKey->Size);
s->BulkRecvKeySize = s->Connection->FirstSock->BulkRecvKey->Size;
}
if (s->IsAzureSession)
@ -5449,6 +5600,8 @@ bool ClientUploadAuth(CONNECTION *c)
PackAddBool(p, "use_udp_acceleration", true);
PackAddInt(p, "udp_acceleration_version", c->Session->UdpAccel->Version);
Copy(&my_ip, &c->Session->UdpAccel->MyIp, sizeof(IP));
if (IsLocalHostIP(&my_ip))
{
@ -5464,11 +5617,15 @@ bool ClientUploadAuth(CONNECTION *c)
PackAddIp(p, "udp_acceleration_client_ip", &my_ip);
PackAddInt(p, "udp_acceleration_client_port", c->Session->UdpAccel->MyPort);
PackAddData(p, "udp_acceleration_client_key", c->Session->UdpAccel->MyKey, UDP_ACCELERATION_COMMON_KEY_SIZE);
PackAddData(p, "udp_acceleration_client_key", c->Session->UdpAccel->MyKey, UDP_ACCELERATION_COMMON_KEY_SIZE_V1);
PackAddData(p, "udp_acceleration_client_key_v2", c->Session->UdpAccel->MyKey_V2, UDP_ACCELERATION_COMMON_KEY_SIZE_V2);
PackAddBool(p, "support_hmac_on_udp_acceleration", true);
PackAddBool(p, "support_udp_accel_fast_disconnect_detect", true);
PackAddInt(p, "udp_acceleration_max_version", 2);
}
PackAddInt(p, "rudp_bulk_max_version", 2);
// Brand string for the connection limit
{
char *branded_ctos = _SS("BRANDED_C_TO_S");

2
src/Cedar/Session.c
View File

@ -1293,6 +1293,8 @@ void CleanupSession(SESSION *s)
DeleteCounter(s->LoggingRecordCount);
ReleaseSharedBuffer(s->IpcSessionSharedBuffer);
Free(s);
}

10
src/Cedar/Session.h
View File

@ -168,10 +168,12 @@ struct SESSION
bool IsRUDPSession; // Whether R-UDP session
UINT RUdpMss; // The value of the MSS should be applied while the R-UDP is used
bool EnableBulkOnRUDP; // Allow the bulk transfer in the R-UDP session
UINT BulkOnRUDPVersion; // RUDP Bulk version
bool EnableHMacOnBulkOfRUDP; // Use the HMAC to sign the bulk transfer of R-UDP session
bool EnableUdpRecovery; // Enable the R-UDP recovery
bool UseUdpAcceleration; // Use of UDP acceleration mode
UINT UdpAccelerationVersion; // UDP acceleration version
bool UseHMacOnUdpAcceleration; // Use the HMAC in the UDP acceleration mode
UDP_ACCEL *UdpAccel; // UDP acceleration
bool IsUsingUdpAcceleration; // Flag of whether the UDP acceleration is used
@ -211,6 +213,11 @@ struct SESSION
char FirstTimeHttpRedirectUrl[128]; // URL for redirection only the first time
UINT FirstTimeHttpAccessCheckIp; // IP address for access checking
UCHAR BulkSendKey[RUDP_BULK_KEY_SIZE_MAX]; // RUDP Bulk Send Key
UINT BulkSendKeySize; // RUDP Bulk Send Key size
UCHAR BulkRecvKey[RUDP_BULK_KEY_SIZE_MAX]; // RUDP Bulk Recv Key
UINT BulkRecvKeySize; // RUDP Bulk Recv Key size
// To examine the maximum number of allowed logging target packets per minute
UINT64 MaxLoggedPacketsPerMinuteStartTick; // Inspection start time
UINT CurrentNumPackets; // Current number of packets
@ -220,6 +227,9 @@ struct SESSION
UCHAR LastDLinkSTPPacketDataHash[MD5_SIZE]; // Last D-Link STP packet hash
bool *NicDownOnDisconnect; // Pointer to client configuration parameter. NULL for non-clients.
SHARED_BUFFER *IpcSessionSharedBuffer; // A shared buffer between IPC and Session
IPC_SESSION_SHARED_BUFFER_DATA *IpcSessionShared; // Shared data between IPC and Session
};
// Password dialog