升级到Sierra后proxychains4失败

http://linyehui.me/2017/02/17/proxychain4-pod-update-failed/

 

问题

我的问题是proxychains4 telnet 是没问题的,但是proxychains4 pod update就会报下面这样的警告,然后失败:

[proxychains] preloading ./libproxychains4.dylib
dyld: warning: could not load inserted library ‘./libproxychains4.dylib’ into library validated process because no suitable image found. Did find:
./libproxychains4.dylib: code signing blocked mmap() of ‘./libproxychains4.dylib’

我的环境如下:

  • macOS Sierra 10.12.3
  • proxychains-ng 4.12_1
  • SIP之前配置过用的是:csrutil enable –without debug,查询的状态如下:
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    $ csrutil status
    System Integrity Protection status: enabled (Custom Configuration).
    
    Configuration:
    	Apple Internal: disabled
    	Kext Signing: enabled
    	Filesystem Protections: enabled
    	Debugging Restrictions: disabled
    	DTrace Restrictions: enabled
    	NVRAM Protections: enabled
    	BaseSystem Verification: enabled
    
    This is an unsupported configuration, likely to break in the future and leave your machine in an unknown state.
    

寻找原因

一开始是找到了这篇issues:Proxychains4 with brew for MacOs error #109,以为是我的proxychains4版本问题或者是我的SIP问题,所以做了以下尝试:

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# 进入系统的recovery mode,禁用SIP
csrutil disable
reboot

# 重启后卸载老的proxychains
brew tap beeftornado/rmtree
brew rmtree proxychains-ng

# 重新安装
proxychains-ng --universal

# 确认下proxychains-ng的配置是否正确,如果不正确就再配置下proxychains.conf
# 确认下telnet是否正常
proxychains4 telnet google.com 80

# 再尝试下pod update
proxychains4 pod update

# 问题依旧:code signing blocked mmap()

 

问题所在

在另外一个issue78:Not working on OS X 10.11 due to SIP #78中看到了被点赞了4次的这个回答,让我最后解决了问题:

It only happens if you execute a system binary using proxychains, e.g. proxychains4 ssh user@server. For now, a workaround is to copy the executable to another location (e.g. cp /usr/bin/ssh ~/XXX), and use it (e.g. proxychains4 ~/XXX/ssh user@server). You can modify the path variable so that ~/XXX/ssh is executed instead of /usr/bin/ssh, when you just type “ssh”.

一句话描述问题:

proxychain尝试注入系统bin目录下的二进制文件会出现这种情况,解决方案就是换个非系统目录的文件来执行和注入就可以了。

解决方案

根据上面的问题描述,再考虑pod update的实际操作,其实就是调用git去更新,而我的git用的是系统自带的:

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$ which git
/usr/bin/git

 

这样一来问题就变成了让pod update使用我自己安装的git就可以了:

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brew install git

# 修改.bash_profile,增加下面的export配置,优先搜索/usr/local/bin目录
# 这样修改后,terminal下使用git就会优先使用我们刚刚安装的git版本了
export PATH=/usr/local/bin:/usr/local/sbin:${PATH}

 

好了,配置好了,再试一下,成功了:

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proxychains4 pod update

 

关于SIP

最后我验证了下,SIP其实不需要disable,csrutil enable –without debug下proxychains也是能正常工作的

总结

说下我这里能够正常运行的环境和因素:

  • macOS Sierra 10.12.3
  • proxychains-ng 4.12_1
  • 进入系统的recovery mode,打开terminal,csrutil enable –without debug
    可以使用这个命令查询的状态,我的状态如下:

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    $ csrutil status
    System Integrity Protection status: enabled (Custom Configuration).
    
    Configuration:
    	Apple Internal: disabled
    	Kext Signing: enabled
    	Filesystem Protections: enabled
    	Debugging Restrictions: disabled
    	DTrace Restrictions: enabled
    	NVRAM Protections: enabled
    	BaseSystem Verification: enabled
    
    This is an unsupported configuration, likely to break in the future and leave your machine in an unknown state.
    
  • 我的git使用的是brew install git的版本:

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    $ which git
    /usr/local/bin/git
    

参考材料

Not working on OS X 10.11 due to SIP #78
Proxychains4 with brew for MacOs error #109
code signing blocked mmap() #159

 

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