Kali2.0 update到最新版本后安装shadowsocks服务报错问题

本文适用于解决openssl升级到1.1.0以上版本,导致shadowsocks2.8.2启动报undefined symbol: EVP_CIPHER_CTX_cleanup错误。

最近将kali升级到了最新版本,编译之后shadowsocks无法启动,报错如下:

INFO: loading config from ss.json 
2016-12-14 22:47:50 INFO loading libcrypto from libcrypto.so.1.1 
Traceback (most recent call last): 
File “/usr/local/bin/sslocal”, line 11, in 
sys.exit(main()) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/local.py”, line 39, in main 
config = shell.get_config(True) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/shell.py”, line 262, in get_config 
check_config(config, is_local) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/shell.py”, line 124, in check_config 
encrypt.try_cipher(config[‘password’], config[‘method’]) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/encrypt.py”, line 44, in try_cipher 
Encryptor(key, method) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/encrypt.py”, line 83, in init 
random_string(self._method_info[1])) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/encrypt.py”, line 109, in get_cipher 
return m[2](method, key, iv, op) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/crypto/openssl.py”, line 76, in init 
load_openssl() 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/crypto/openssl.py”, line 52, in load_openssl 
libcrypto.EVP_CIPHER_CTX_cleanup.argtypes = (c_void_p,) 
File “/usr/lib/python2.7/ctypes/init.py”, line 375, in getattr 
func = self.getitem(name) 
File “/usr/lib/python2.7/ctypes/init.py”, line 380, in getitem 
func = self._FuncPtr((name_or_ordinal, self)) 
AttributeError: /usr/lib/x86_64-Linux-gnu/libcrypto.so.1.1: undefined symbol: EVP_CIPHER_CTX_cleanup

这个问题是由于在openssl1.1.0版本中,废弃了EVP_CIPHER_CTX_cleanup函数,如官网中所说:

EVP_CIPHER_CTX was made opaque in OpenSSL 1.1.0. As a result, EVP_CIPHER_CTX_reset() appeared and EVP_CIPHER_CTX_cleanup() disappeared.
EVP_CIPHER_CTX_init() remains as an alias for EVP_CIPHER_CTX_reset().

修改方法: 用vim打开文件:vim /usr/local/lib/python2.7/dist-packages/shadowsocks/crypto/openssl.py (该路径请根据自己的系统情况自行修改,如果不知道该文件在哪里的话,可以使用find命令查找文件位置)跳转到52行(shadowsocks2.8.2版本,其他版本搜索一下cleanup)进入编辑模式将第52行libcrypto.EVP_CIPHER_CTX_cleanup.argtypes = (c_void_p,) 改为libcrypto.EVP_CIPHER_CTX_reset.argtypes = (c_void_p,)再次搜索cleanup(全文件共2处,此处位于111行),将libcrypto.EVP_CIPHER_CTX_cleanup(self._ctx) 改为libcrypto.EVP_CIPHER_CTX_reset(self._ctx)保存并退出启动shadowsocks服务:service shadowsocks start 或 sslocal -c ss配置文件目录问题解决

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