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OpenVPN client certificate authentication (Individual Certificate Authentication) (#327)

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* Implement OpenVPN certificate authentication, fixes #55

* fixup! Implement OpenVPN certificate authentication, fixes #55
This commit is contained in:
Alexey Kryuchkov 2018-04-06 00:04:58 +03:00 committed by Moataz Elmasry
parent 863f87fac1
commit 83295bb736
17 changed files with 218 additions and 14 deletions
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1
src/Cedar/Cedar.h
View File

@ -448,6 +448,7 @@
#define AUTHTYPE_ROOTCERT 3 // Root certificate which is issued by trusted Certificate Authority
#define AUTHTYPE_RADIUS 4 // Radius authentication
#define AUTHTYPE_NT 5 // Windows NT authentication
#define AUTHTYPE_OPENVPN_CERT 98 // TLS client certificate authentication
#define AUTHTYPE_TICKET 99 // Ticket authentication
// Constant of the client side

2
src/Cedar/IPsec_EtherIP.c
View File

@ -170,7 +170,7 @@ void EtherIPIpcConnectThread(THREAD *t, void *p)
&s->ClientIP, s->ClientPort,
&s->ServerIP, s->ServerPort,
tmp,
s->CryptName, true, mss, NULL);
s->CryptName, true, mss, NULL, NULL);
if (ipc != NULL)
{

13
src/Cedar/IPsec_IPC.c
View File

@ -323,7 +323,7 @@ IPC *NewIPCByParam(CEDAR *cedar, IPC_PARAM *param, UINT *error_code)
param->UserName, param->Password, error_code, &param->ClientIp,
param->ClientPort, &param->ServerIp, param->ServerPort,
param->ClientHostname, param->CryptName,
param->BridgeMode, param->Mss, NULL);
param->BridgeMode, param->Mss, NULL, param->ClientCertificate);
return ipc;
}
@ -332,7 +332,7 @@ IPC *NewIPCByParam(CEDAR *cedar, IPC_PARAM *param, UINT *error_code)
IPC *NewIPC(CEDAR *cedar, char *client_name, char *postfix, char *hubname, char *username, char *password,
UINT *error_code, IP *client_ip, UINT client_port, IP *server_ip, UINT server_port,
char *client_hostname, char *crypt_name,
bool bridge_mode, UINT mss, EAP_CLIENT *eap_client)
bool bridge_mode, UINT mss, EAP_CLIENT *eap_client, X *client_certificate)
{
IPC *ipc;
UINT dummy_int = 0;
@ -425,7 +425,14 @@ IPC *NewIPC(CEDAR *cedar, char *client_name, char *postfix, char *hubname, char
FreePack(p);
// Upload the authentication data
p = PackLoginWithPlainPassword(hubname, username, password);
if (client_certificate != NULL)
{
p = PackLoginWithOpenVPNCertificate(hubname, username, client_certificate);
}
else
{
p = PackLoginWithPlainPassword(hubname, username, password);
}
PackAddStr(p, "hello", client_name);
PackAddInt(p, "client_ver", cedar->Version);
PackAddInt(p, "client_build", cedar->Build);

3
src/Cedar/IPsec_IPC.h
View File

@ -165,6 +165,7 @@ struct IPC_PARAM
UINT Mss;
bool IsL3Mode;
bool IsOpenVPN;
X *ClientCertificate;
};
// IPC_ASYNC object
@ -224,7 +225,7 @@ struct IPC_MSCHAP_V2_AUTHINFO
IPC *NewIPC(CEDAR *cedar, char *client_name, char *postfix, char *hubname, char *username, char *password,
UINT *error_code, IP *client_ip, UINT client_port, IP *server_ip, UINT server_port,
char *client_hostname, char *crypt_name,
bool bridge_mode, UINT mss, EAP_CLIENT *eap_client);
bool bridge_mode, UINT mss, EAP_CLIENT *eap_client, X *client_certificate);
IPC *NewIPCByParam(CEDAR *cedar, IPC_PARAM *param, UINT *error_code);
IPC *NewIPCBySock(CEDAR *cedar, SOCK *s, void *mac_address);
void FreeIPC(IPC *ipc);

4
src/Cedar/IPsec_PPP.c
View File

@ -1018,7 +1018,7 @@ PPP_PACKET *PPPProcessRequestPacket(PPP_SESSION *p, PPP_PACKET *req)
// Attempt to connect with IPC
ipc = NewIPC(p->Cedar, p->ClientSoftwareName, p->Postfix, hub, id, password,
&error_code, &p->ClientIP, p->ClientPort, &p->ServerIP, p->ServerPort,
p->ClientHostname, p->CryptName, false, p->AdjustMss, p->EapClient);
p->ClientHostname, p->CryptName, false, p->AdjustMss, p->EapClient, NULL);
if (ipc != NULL)
{
@ -1151,7 +1151,7 @@ PPP_PACKET *PPPProcessRequestPacket(PPP_SESSION *p, PPP_PACKET *req)
ipc = NewIPC(p->Cedar, p->ClientSoftwareName, p->Postfix, hub, id, password,
&error_code, &p->ClientIP, p->ClientPort, &p->ServerIP, p->ServerPort,
p->ClientHostname, p->CryptName, false, p->AdjustMss, NULL);
p->ClientHostname, p->CryptName, false, p->AdjustMss, NULL, NULL);
if (ipc != NULL)
{

33
src/Cedar/Interop_OpenVPN.c
View File

@ -442,7 +442,8 @@ void OvsProcessRecvControlPacket(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN
// Create an SSL pipe
Lock(s->Cedar->lock);
{
c->SslPipe = NewSslPipe(true, s->Cedar->ServerX, s->Cedar->ServerK, s->Dh);
bool cert_verify = true;
c->SslPipe = NewSslPipeEx(true, s->Cedar->ServerX, s->Cedar->ServerK, s->Dh, cert_verify, &c->ClientCert);
}
Unlock(s->Cedar->lock);
@ -712,6 +713,11 @@ void OvsBeginIPCAsyncConnectionIfEmpty(OPENVPN_SERVER *s, OPENVPN_SESSION *se, O
p.BridgeMode = true;
}
if (c->ClientCert.X != NULL)
{
p.ClientCertificate = c->ClientCert.X;
}
p.IsOpenVPN = true;
// Calculate the MSS
@ -780,6 +786,26 @@ void OvsSetupSessionParameters(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_C
OvsLog(s, se, c, "LO_OPTION_STR_RECV", data->OptionString);
if (c->ClientCert.X != NULL)
{
if (c->ClientCert.X->subject_name != NULL)
{
OvsLog(s, se, c, "LO_CLIENT_CERT", c->ClientCert.X->subject_name->CommonName);
}
else
{
OvsLog(s, se, c, "LO_CLIENT_CERT", "(unknown CN)");
}
}
else if (!c->ClientCert.PreverifyErr)
{
OvsLog(s, se, c, "LO_CLIENT_NO_CERT");
}
else
{
OvsLog(s, se, c, "LO_CLIENT_UNVERIFIED_CERT", c->ClientCert.PreverifyErrMessage);
}
Zero(opt_str, sizeof(opt_str));
StrCpy(opt_str, sizeof(opt_str), data->OptionString);
if (s->Cedar != NULL && (IsEmptyStr(opt_str) || StartWith(opt_str, "V0 UNDEF") || InStr(opt_str, ",") == false))
@ -1359,6 +1385,11 @@ void OvsFreeChannel(OPENVPN_CHANNEL *c)
FreeMd(c->MdRecv);
FreeMd(c->MdSend);
if (c->ClientCert.X != NULL)
{
FreeX(c->ClientCert.X);
}
Free(c);
}

1
src/Cedar/Interop_OpenVPN.h
View File

@ -257,6 +257,7 @@ struct OPENVPN_CHANNEL
bool IsInitiatorServer; // Whether the channel was started from the server side
bool RekeyInitiated; // Whether re-keying has already started
UINT64 NextRekey;
struct SslClientCertInfo ClientCert; // Client certificate and verification data
};
// OpenVPN session

86
src/Cedar/Protocol.c
View File

@ -1795,6 +1795,9 @@ bool ServerAccept(CONNECTION *c)
case AUTHTYPE_TICKET:
authtype_str = _UU("LH_AUTH_TICKET");
break;
case AUTHTYPE_OPENVPN_CERT:
authtype_str = _UU("LH_AUTH_OPENVPN_CERT");
break;
}
IPToStr(ip1, sizeof(ip1), &c->FirstSock->RemoteIP);
IPToStr(ip2, sizeof(ip2), &c->FirstSock->LocalIP);
@ -2128,6 +2131,50 @@ bool ServerAccept(CONNECTION *c)
}
break;
case AUTHTYPE_OPENVPN_CERT:
// For OpenVPN; mostly same as CLIENT_AUTHTYPE_CERT, but without
// signature verification, because it was already performed during TLS handshake.
if (c->IsInProc)
{
// Certificate authentication
cert_size = PackGetDataSize(p, "cert");
if (cert_size >= 1 && cert_size <= 100000)
{
cert_buf = ZeroMalloc(cert_size);
if (PackGetData(p, "cert", cert_buf))
{
BUF *b = NewBuf();
X *x;
WriteBuf(b, cert_buf, cert_size);
x = BufToX(b, false);
if (x != NULL && x->is_compatible_bit)
{
Debug("Got to SamAuthUserByCert %s\n", username); // XXX
// Check whether the certificate is valid.
auth_ret = SamAuthUserByCert(hub, username, x);
if (auth_ret)
{
// Copy the certificate
c->ClientX = CloneX(x);
}
}
FreeX(x);
FreeBuf(b);
}
Free(cert_buf);
}
}
else
{
// OpenVPN certificate authentication cannot be used directly by external clients
Unlock(hub->lock);
ReleaseHub(hub);
FreePack(p);
c->Err = ERR_AUTHTYPE_NOT_SUPPORTED;
goto CLEANUP;
}
break;
default:
// Unknown authentication method
Unlock(hub->lock);
@ -7247,6 +7294,45 @@ PACK *PackLoginWithPlainPassword(char *hubname, char *username, void *plain_pass
return p;
}
// Generate a packet of OpenVPN certificate login
PACK *PackLoginWithOpenVPNCertificate(char *hubname, char *username, X *x)
{
PACK *p;
// Validate arguments
if (hubname == NULL || username == NULL || x == NULL)
{
return NULL;
}
p = NewPack();
PackAddStr(p, "method", "login");
PackAddStr(p, "hubname", hubname);
char cn_username[128];
if (IsEmptyStr(username))
{
if (x->subject_name == NULL)
{
return NULL;
}
wcstombs(cn_username, x->subject_name->CommonName, 127);
cn_username[127] = '\0';
PackAddStr(p, "username", cn_username);
}
else
{
PackAddStr(p, "username", username);
}
PackAddInt(p, "authtype", AUTHTYPE_OPENVPN_CERT);
BUF *cert_buf = XToBuf(x, false);
PackAddBuf(p, "cert", cert_buf);
FreeBuf(cert_buf);
return p;
}
// Create a packet of password authentication login
PACK *PackLoginWithPassword(char *hubname, char *username, void *secure_password)
{

1
src/Cedar/Protocol.h
View File

@ -242,6 +242,7 @@ PACK *PackLoginWithAnonymous(char *hubname, char *username);
PACK *PackLoginWithPassword(char *hubname, char *username, void *secure_password);
PACK *PackLoginWithPlainPassword(char *hubname, char *username, void *plain_password);
PACK *PackLoginWithCert(char *hubname, char *username, X *x, void *sign, UINT sign_size);
PACK *PackLoginWithOpenVPNCertificate(char *hubname, char *username, X *x);
bool GetMethodFromPack(PACK *p, char *method, UINT size);
bool GetHubnameAndUsernameFromPack(PACK *p, char *username, UINT username_size,
char *hubname, UINT hubname_size);

8
src/Mayaqua/Encrypt.c
View File

@ -151,6 +151,8 @@
LOCK *openssl_lock = NULL;
int ssl_clientcert_index = 0;
LOCK **ssl_lock_obj = NULL;
UINT ssl_lock_num;
static bool openssl_inited = false;
@ -4064,6 +4066,8 @@ void InitCryptLibrary()
ERR_load_crypto_strings();
SSL_load_error_strings();
ssl_clientcert_index = SSL_get_ex_new_index(0, "struct SslClientCertInfo *", NULL, NULL, NULL);
#ifdef OS_UNIX
{
char *name1 = "/dev/random";
@ -5289,5 +5293,9 @@ static unsigned char *Internal_SHA0(const unsigned char *d, size_t n, unsigned c
}
int GetSslClientCertIndex()
{
return ssl_clientcert_index;
}

2
src/Mayaqua/Encrypt.h
View File

@ -581,6 +581,8 @@ BUF *EasyDecrypt(BUF *src_buf);
void DisableIntelAesAccel();
int GetSslClientCertIndex();
#ifdef ENCRYPT_C
// Inner function

51
src/Mayaqua/Network.c
View File

@ -5809,14 +5809,52 @@ SOCK *ListenAnyPortEx2(bool local_only, bool disable_ca)
return NULL;
}
int cb_test(int a, X509_STORE_CTX *ctx)
// Verify client SSL certificate during TLS handshake.
//
// (actually, only save the certificate for later authentication in Protocol.c)
int SslCertVerifyCallback(int preverify_ok, X509_STORE_CTX *ctx)
{
WHERE;
return 1;
SSL *ssl;
struct SslClientCertInfo *clientcert;
ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
clientcert = SSL_get_ex_data(ssl, GetSslClientCertIndex());
if (clientcert != NULL)
{
clientcert->PreverifyErr = 0;
clientcert->PreverifyErrMessage[0] = '\0';
if (!preverify_ok)
{
clientcert->PreverifyErr = X509_STORE_CTX_get_error(ctx);
const char *msg = X509_verify_cert_error_string(clientcert->PreverifyErr);
StrCpy(clientcert->PreverifyErrMessage, PREVERIFY_ERR_MESSAGE_SIZE, msg);
Debug("SslCertVerifyCallback preverify error: '%s'\n", msg);
}
else
{
if (ctx->cert != NULL)
{
X *tmpX = X509ToX(ctx->cert); // this only wraps ctx->cert, but we need to make a copy
X *copyX = CloneX(tmpX);
tmpX->do_not_free = true; // do not release inner X509 object
FreeX(tmpX);
clientcert->X = copyX;
}
}
}
return 1; /* allow the verification process to continue */
}
// Create a new SSL pipe
SSL_PIPE *NewSslPipe(bool server_mode, X *x, K *k, DH_CTX *dh)
{
return NewSslPipeEx(server_mode, x, k, dh, false, NULL);
}
// Create a new SSL pipe with extended options
SSL_PIPE *NewSslPipeEx(bool server_mode, X *x, K *k, DH_CTX *dh, bool verify_peer, struct SslClientCertInfo *clientcert)
{
SSL_PIPE *s;
SSL *ssl;
@ -5841,7 +5879,10 @@ SSL_PIPE *NewSslPipe(bool server_mode, X *x, K *k, DH_CTX *dh)
SSL_CTX_set_ssl_version(ssl_ctx, SSLv23_client_method());
}
//SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, cb_test);
if (verify_peer)
{
SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, SslCertVerifyCallback);
}
if (dh != NULL)
{
@ -5854,6 +5895,8 @@ SSL_PIPE *NewSslPipe(bool server_mode, X *x, K *k, DH_CTX *dh)
}
ssl = SSL_new(ssl_ctx);
SSL_set_ex_data(ssl, GetSslClientCertIndex(), clientcert);
}
Unlock(openssl_lock);

9
src/Mayaqua/Network.h
View File

@ -1615,7 +1615,16 @@ void Win32WaitForTubes(TUBE **tubes, UINT num, UINT timeout);
void UnixWaitForTubes(TUBE **tubes, UINT num, UINT timeout);
#endif // OS_WIN32
#define PREVERIFY_ERR_MESSAGE_SIZE 100
// Info on client certificate collected during TLS handshake
struct SslClientCertInfo {
int PreverifyErr;
char PreverifyErrMessage[PREVERIFY_ERR_MESSAGE_SIZE];
X *X;
};
SSL_PIPE *NewSslPipe(bool server_mode, X *x, K *k, DH_CTX *dh);
SSL_PIPE *NewSslPipeEx(bool server_mode, X *x, K *k, DH_CTX *dh, bool verify_peer, struct SslClientCertInfo *clientcert);
void FreeSslPipe(SSL_PIPE *s);
bool SyncSslPipe(SSL_PIPE *s);

4
src/bin/hamcore/strtable_cn.stb
View File

@ -1810,6 +1810,9 @@ LO_PREFIX_CHANNEL OpenVPN 会话%u (%r:%u -> %r:%u) 通道 %u:
LO_NEW_CHANNEL 已创创建一个新通道。
LO_CHANNEL_ESTABLISHED_NEWKEY 通道已建立。(触发器: Re-key完成。)
LO_OPTION_STR_RECV 接收到的选项字符串："%S"
LO_CLIENT_CERT Client certificate received (subject: CN="%s"), will use certificate authentication.
LO_CLIENT_UNVERIFIED_CERT Client certificate was provided but did not pass verification (error="%S"), will use password authentication.
LO_CLIENT_NO_CERT Client certificate is not provided, will use password authentication.
LO_OPTION_STR_SEND 发送选项字符串："%S"
LO_NEW_SESSION 已创建新的会话。协议：%S
LO_INITIATE_REKEY re-keying 进程已开始。
@ -1906,6 +1909,7 @@ LH_AUTH_PASSWORD 密码验证
LH_AUTH_PLAIN_PASSWORD 外部服务器身份验证
LH_AUTH_CERT 证书验证
LH_AUTH_TICKET 票证验证
LH_AUTH_OPENVPN_CERT OpenVPN certificate authentication
LH_AUTH_RADIUS_NOT_SUPPORT 连接 "%S": 用户 "%S" 身份验证方法 RADIUS 或 Active Directory (NT 域)，但 VPN Server 是 "%S"，因为 RADIUS 或 Active Directory (NT 域)不能使用。连接被拒绝。
LH_AUTH_RADIUS_NOT_SUPPORT_ON_OPEN_SOURCE "%S" 的连接方法: 用户 "%S" 的身份验证方法被指定为 RADIUS 身份验证或 Active Directory 身份验证 (NT 域验证)。然而，这样一个外部用户身份验证功能尚未在 SoftEther VPN 的开源版本上实施。该连接将被拒绝。
LH_AUTH_CERT_NOT_SUPPORT_ON_OPEN_SOURCE "%S" 的连接方法: 用户 "%S" 的身份验证方法被指定为证书认证。然而，证书验证功能尚未在 SoftEther VPN 的开源版本上实施。该连接将被拒绝。

6
src/bin/hamcore/strtable_en.stb
View File

@ -1792,6 +1792,9 @@ LO_PREFIX_CHANNEL OpenVPN Session %u (%r:%u -> %r:%u) Channel %u:
LO_NEW_CHANNEL A new channel is created.
LO_CHANNEL_ESTABLISHED_NEWKEY The channel is established. (Trigger: Re-key completion.)
LO_OPTION_STR_RECV Option Strings Received: "%S"
LO_CLIENT_CERT Client certificate received (subject: CN="%s"), will use certificate authentication.
LO_CLIENT_UNVERIFIED_CERT Client certificate was provided but did not pass verification (error="%S"), will use password authentication.
LO_CLIENT_NO_CERT Client certificate is not provided, will use password authentication.
LO_OPTION_STR_SEND Option Strings to Send: "%S"
LO_NEW_SESSION A new session is created. Protocol: %S
LO_INITIATE_REKEY The re-keying process is started.
@ -1888,6 +1891,7 @@ LH_AUTH_PASSWORD Password authentication
LH_AUTH_PLAIN_PASSWORD External server authentication
LH_AUTH_CERT Certificate authentication
LH_AUTH_TICKET Ticket authentication
LH_AUTH_OPENVPN_CERT OpenVPN certificate authentication
LH_AUTH_RADIUS_NOT_SUPPORT Connection "%S": The authentication method of the user "%S" has been specified as RADIUS Authentication or Active Directory Authentication (NT Domain Authentication). However, the edition of the VPN Server is "%S". This edition does not support RADIUS Authentication nor Active Directory Authentication (NT Domain Authentication). The connection will be denied.
LH_AUTH_RADIUS_NOT_SUPPORT_ON_OPEN_SOURCE Connection "%S": The authentication method of the user "%S" has been specified as RADIUS Authentication or Active Directory Authentication (NT Domain Authentication). However, such an external user-authentication function hasn't been implemented on the Open-Source version of SoftEther VPN yet. The connection will be denied.
LH_AUTH_CERT_NOT_SUPPORT_ON_OPEN_SOURCE Connection "%S": The authentication method of the user "%S" has been specified as Certificate Authentication. However, the Certificate Authentication function hasn't been implemented on the Open-Source version of SoftEther VPN yet. The connection will be denied.
@ -7164,5 +7168,3 @@ SW_LINK_NAME_LANGUAGE_COMMENT Change the display language setting of %s.
SW_LINK_NAME_DEBUG Debugging Information Collecting Tool
SW_LINK_NAME_DEBUG_COMMENT Collects debugging information of SoftEther VPN. Use this tool only if your support staff asks you to do so.

4
src/bin/hamcore/strtable_ja.stb
View File

@ -1796,6 +1796,9 @@ LO_PREFIX_CHANNEL OpenVPN セッション %u (%r:%u -> %r:%u) チャネル %u:
LO_NEW_CHANNEL 新しいチャネルを作成しました。
LO_CHANNEL_ESTABLISHED_NEWKEY チャネルが確立状態になりました (原因: リキーの完了)。
LO_OPTION_STR_RECV 受信したオプション文字列: "%S"
LO_CLIENT_CERT Client certificate received (subject: CN="%s"), will use certificate authentication.
LO_CLIENT_UNVERIFIED_CERT Client certificate was provided but did not pass verification (error="%S"), will use password authentication.
LO_CLIENT_NO_CERT Client certificate is not provided, will use password authentication.
LO_OPTION_STR_SEND 送信するオプション文字列: "%S"
LO_NEW_SESSION 新しいセッションを作成しました。プロトコル: %S
LO_INITIATE_REKEY このチャネルのリキーを開始します。
@ -1892,6 +1895,7 @@ LH_AUTH_PASSWORD パスワード認証
LH_AUTH_PLAIN_PASSWORD 外部サーバー認証
LH_AUTH_CERT 証明書認証
LH_AUTH_TICKET チケット認証
LH_AUTH_OPENVPN_CERT OpenVPN certificate authentication
LH_AUTH_RADIUS_NOT_SUPPORT コネクション "%S": ユーザー "%S" の認証方法として RADIUS 認証または Active Directory 認証 (NT ドメイン認証) が指定されましたが、現在の VPN Server のエディションは "%S" であるため、RADIUS 認証または Active Directory 認証 (NT ドメイン認証) を使用することができません。接続は拒否されます。
LH_AUTH_RADIUS_NOT_SUPPORT_ON_OPEN_SOURCE コネクション "%S": ユーザー "%S" の認証方法として RADIUS 認証または Active Directory 認証 (NT ドメイン認証) が指定されましたが、RADIUS 認証または Active Directory 認証 (NT ドメイン認証) を使用することができません。この機能はオープンソース版 SoftEther VPN にはまだ実装されていません。接続は拒否されます。
LH_AUTH_CERT_NOT_SUPPORT_ON_OPEN_SOURCE コネクション "%S": ユーザー "%S" の認証方法として証明書認証が指定されましたが、証明書認証を使用することができません。この機能はオープンソース版 SoftEther VPN にはまだ実装されていません。接続は拒否されます。

4
src/bin/hamcore/strtable_tw.stb
View File

@ -1812,6 +1812,9 @@ LO_PREFIX_CHANNEL OpenVPN 會話%u (%r:%u -> %r:%u) 通道 %u:
LO_NEW_CHANNEL 已創建一個新通道。
LO_CHANNEL_ESTABLISHED_NEWKEY 通道已建立。(觸發器: Re-key完成。)
LO_OPTION_STR_RECV 接收到的選項字串："%S"
LO_CLIENT_CERT Client certificate received (subject: CN="%s"), will use certificate authentication.
LO_CLIENT_UNVERIFIED_CERT Client certificate was provided but did not pass verification (error="%S"), will use password authentication.
LO_CLIENT_NO_CERT Client certificate is not provided, will use password authentication.
LO_OPTION_STR_SEND 發送選項字串："%S"
LO_NEW_SESSION 已創建新的會話。協議：%S
LO_INITIATE_REKEY re-keying 進程已開始。
@ -1908,6 +1911,7 @@ LH_AUTH_PASSWORD 密碼驗證
LH_AUTH_PLAIN_PASSWORD 外部伺服器身份驗證
LH_AUTH_CERT 證書驗證
LH_AUTH_TICKET 票證驗證
LH_AUTH_OPENVPN_CERT OpenVPN certificate authentication
LH_AUTH_RADIUS_NOT_SUPPORT 連接 "%S": 用戶 "%S" 身份驗證方法 RADIUS 或 Active Directory (NT 域)，但 VPN Server 是 "%S"，因為 RADIUS 或 Active Directory (NT 域)不能使用。連接被拒絕。
LH_AUTH_RADIUS_NOT_SUPPORT_ON_OPEN_SOURCE "%S" 的連接方法: 用戶 "%S" 的身份驗證方法被指定為 RADIUS 身份驗證或 Active Directory 身份驗證 (NT 域驗證)。然而，這樣一個外部用戶身份驗證功能尚未在 SoftEther VPN 的開源版本上實施。該連接將被拒絕。
LH_AUTH_CERT_NOT_SUPPORT_ON_OPEN_SOURCE "%S" 的連接方法: 用戶 "%S" 的身份驗證方法被指定為證書認證。然而，證書驗證功能尚未在 SoftEther VPN 的開源版本上實施。該連接將被拒絕。