使用特定的OpenSSL版本构建OpenVPN

Question

之前已经提出了类似的问题,但由于配置脚本的标志已更改,因此答案似乎不再适用.我试图在x86和x64上从Ubuntu 14.04.5上的git源编译OpenVPN.我已经在/ usr/local/ssl中构建并安装了OpenSSL 1.0.1t.我已经尝试了配置选项的各种组合,编译器似乎认识到了

./configure OPENSSL_LIBS="-L/usr/local/ssl/ -lssl -lcrypto" OPENSSL_CFLAGS="-I/usr/local/ssl/include/"

完成没有错误,但./configure OPENSSL_LIBS="-L/usr/local/ssl/" OPENSSL_CFLAGS="-I/usr/local/ssl/include/"结果configure: error: openssl check failed.一旦你做了make并进行安装,它仍然会报告OpenSSL的系统版本:

root@anonymous:/usr/local/src/openvpn# openvpn --version
OpenVPN 2.3_git [git:master/d1bd37fd508ee046] x86_64-unknown-linux-gnu [SSL (OpenSSL)]
[LZO] [LZ4] [EPOLL] [MH] [IPv6] built on Aug 16 2016
library versions: OpenSSL 1.0.1f 6 Jan 2014, LZO 2.06
Originally developed by James Yonan
Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
Compile time defines: enable_async_push=no enable_comp_stub=no enable_crypto=yes
enable_crypto_ofb_cfb=yes enable_debug=yes enable_def_auth=yes enable_dlopen=unknown
enable_dlopen_self=unknown enable_dlopen_self_static=unknown enable_fast_install=yes
enable_fragment=yes enable_iproute2=no enable_libtool_lock=yes enable_lz4=yes
enable_lzo=yes enable_management=yes enable_multi=yes enable_multihome=yes enable_pam_dlopen=no
enable_pedantic=no enable_pf=yes enable_pkcs11=no enable_plugin_auth_pam=yes
enable_plugin_down_root=yes enable_plugins=yes enable_port_share=yes enable_selinux=no
enable_server=yes enable_shared=yes enable_shared_with_static_runtimes=no enable_small=no
enable_static=yes enable_strict=no enable_strict_options=no enable_systemd=no
 enable_werror=no enable_win32_dll=yes enable_x509_alt_username=no with_crypto_library=openssl
with_gnu_ld=yes with_mem_check=no with_plugindir='$(libdir)/openvpn/plugins' with_sysroot=no

系统OpenSSL:

root@anonymous:/usr/local/src/openvpn# openssl version

OpenSSL 1.0.1f 6 Jan 2014

编译的OpenSSL:

root@anonymous:/usr/local/ssl/bin# ./openssl version

OpenSSL 1.0.1t  3 May 2016

我知道它必须是简单的东西,但我看到其他用户在OpenVPN论坛上询问此问题,但尚未回复.

Answer 1

下面是我用OpenSSL 1.0.2构建OpenVPN的过程.OpenSSL 1.0.1 与 1.0.2 对 1.1.0无关紧要.但是,一些配置脚本在OpenSSL 1.1.0上死机,因为1.1.0使用OPENSSL_init_ssl而不是SSL_library_init.请注意在Linux上使用RPATH(OS X将使用不同的技术).

OpenSSL配置选项主要在编译和安装|中记录 在他们的wiki上配置选项.我并没有找到OpenVPN的相似,./configure --help是不是非常有帮助.通常,对于Autools项目,您需要--with-ssl=<path to ssl root>,但OpenVPN似乎没有该选项.对于OpenVPN,下面的过程使用Autools进行CFLAGS.

两个库都禁用压缩,因为它可能泄漏信息.有关详细信息,请参阅"发现我",如果可以:在加密的VoIP对话中发现口头短语.问题是可变比特率编码,基本设计在其他压缩库(如zlib)中很普遍.

OpenSSL 1.0.2

$ wget https://www.openssl.org/source/openssl-1.0.2h.tar.gz
$ tar xzf openssl-1.0.2h.tar.gz
$ cd openssl-1.0.2h

$ ./config shared no-ssl2 no-ssl3 no-comp enable-ec_nistp_64_gcc_128 -Wl,-rpath=/usr/local/ssl/lib --prefix=/usr/local/ssl
$ make -j 4
$ make test
$ sudo make install

# clear program cache
$ hash -r

您可以检查openssl程序是否正在使用预期的共享对象:

$ ldd /usr/local/ssl/bin/openssl
    linux-vdso.so.1 =>  (0x00007ffc36578000)
    libssl.so.1.0.0 => /usr/local/ssl/lib/libssl.so.1.0.0 (0x00007f94b48fb000)
    libcrypto.so.1.0.0 => /usr/local/ssl/lib/libcrypto.so.1.0.0 (0x00007f94b448b000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f94b40c6000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f94b3ec2000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f94b4b6c000)

您还可以openssl使用以下内容确保新路径在路径上.但是,它不是您的问题所必需的.

$ sudo ln -s /usr/local/ssl/bin/openssl /usr/local/bin/openssl
$ hash -r
$ command -v openssl
/usr/local/bin/openssl

OpenVPN 2.3.11

$ wget https://swupdate.openvpn.org/community/releases/openvpn-2.3.11.tar.gz
$ tar xzf openvpn-2.3.11.tar.gz
$ cd openvpn-2.3.11

$ CFLAGS="-I/usr/local/ssl/include -Wl,-rpath=/usr/local/ssl/lib -L/usr/local/ssl/lib" ./configure --disable-lzo
$ make -j 4

接下来,检查OpenVPN程序以查看其链接到:

$ find . -type f -name openvpn
./src/openvpn/openvpn
$ ldd ./src/openvpn/openvpn
    linux-vdso.so.1 =>  (0x00007ffc8bfc4000)
    libssl.so.1.0.0 => /usr/local/ssl/lib/libssl.so.1.0.0 (0x00007f74f49f3000)
    libcrypto.so.1.0.0 => /usr/local/ssl/lib/libcrypto.so.1.0.0 (0x00007f74f4583000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f74f437f000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f74f3fba000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f74f4c64000)

接下来,运行自检:

$ make check
...
make[3]: Entering directory `/home/jwalton/openvpn-2.3.11/tests'
./t_client.sh: cannot find 't_client.rc' in build dir ('..')
./t_client.sh: or source directory ('.'). SKIPPING TEST.
SKIP: t_client.sh
Testing cipher AES-128-CBC... OK
Testing cipher AES-128-CFB... OK
Testing cipher AES-128-CFB1... OK
...

如果测试OK,请安装OpenVPN:

$ sudo make install
$ hash -r
$ command -v openvpn
/usr/local/sbin/openvpn

最后,检查一下:

$ /usr/local/sbin/openvpn --version
OpenVPN 2.3.11 x86_64-unknown-linux-gnu [SSL (OpenSSL)] [EPOLL] [MH] [IPv6] built on Aug 17 2016
library versions: OpenSSL 1.0.2h  3 May 2016
Originally developed by James Yonan
Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
...

如果有兴趣,您可以找到一个构建脚本来自动化Noloader的过程 构建脚本.它包括一个OpenVPN.