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Softether VPN 去除开源版本的企业限制

2022年4月24日

在服务端配置过程中遇到一个问题就是不能下发明细路由，这里叫他拆分隧道。如果不处理这个问题，所有请求都会从VPN饶。

但是在SoftEther VPN下发明细路由推送的时候提示：不支持此功能。它尚未在SoftEther VPN的开源版本上实施。

解除限制方法 1 ：

编译Softethervpn的源码

主要看下源码中的限制位置，Softethervpn 4.38 Build 9760

限制代码在src/Cedar/Server.c

// The SoftEther VPN Project intentionally disables these functions for users
// in Japan and China. The reason is: Daiyuu Nobori, the chief author of
// SoftEther VPN, has been liable to observe the existing agreements and
// restrictions between him and some companies. The agreements have regulated
// the region-limited restriction to implement and distribute the above
// enterprise functions on the SoftEther VPN open-source program.
//
// Therefore, the SoftEther VPN Project distributes the binary program and
// the source code with the "SiIsEnterpriseFunctionsRestrictedOnOpenSource"
// function. This function identifies whether the SoftEther VPN Server
// program is running in either Japan or China. If the restricted region is
// detected, then the above enterprise functions will be disabled.
//
// Please note that the above restriction has been imposed only on the
// original binaries and source codes from the SoftEther VPN Project.
// Anyone, except Daiyuu Nobori, who understands and writes the C language
// program can remove this restriction at his own risk.
//
bool SiIsEnterpriseFunctionsRestrictedOnOpenSource(CEDAR *c)
{
    char region[128];
    bool ret = false;
    // Validate arguments
    if (c == NULL)
    {
        return false;
    }
 
 
    SiGetCurrentRegion(c, region, sizeof(region));
 
    if (StrCmpi(region, "JP") == 0 || StrCmpi(region, "CN") == 0)
    {
        ret = true;
    }
 
    return ret;
}

直接改为return false就行了