2011-05-26 72 views
4

我有一个简单的perl测试脚本,它使用Net::SSH2,并且我无法使其使用公钥验证。Net :: SSH2的密钥

注意:在阅读了几篇回复之后,我意识到我应该提到我创建了脚本来帮助缩小与使用Net :: SSH2的另一个应用程序时遇到的问题。因此,我不可能切换到替代包,如Net::OpenSSHNet::OpenSSH::Compat::SSH2

注意更新:作为salvapointed outNet::OpenSSH::Compat::SSH2可以不必修补原来的应用程序中使用。

下面的代码:Ubuntu上使用ssh-keygen

use strict; 
use warnings; 
use 5.10.0; 

use Net::SSH2; 

my $ssh2 = Net::SSH2->new(); 
my $auth; 

if ($ssh2->connect('hostname')) { 

    $auth = $ssh2->auth_publickey(
     'username', 
     '/home/mike/.ssh/id_rsa.pub', 
     '/home/mike/.ssh/id_rsa', 
     'password' 
    ); 
} 

if ($auth && $ssh2->auth_ok) { 
    say 'Success'; 
} else { 
    say join ', ', $ssh2->error; 
} 

我已经生成密钥对:

ssh-keygen -t rsa 
ssh-copy-id [email protected] 
ssh [email protected] 

上述工作正常 - 我可以ssh到服务器。

当我运行Perl代码,我使用密码保护的密钥时,出现以下错误:

-16, LIBSSH2_ERROR_FILE, Unable to initialize private key from file 

如果我尝试用非密码保护的密钥,它工作正常。

我已经安装了下列库:

Net::SSH2   0.35 

libssh2-1   1.2.2-1 
libssh2-1-dev  1.2.2-1 
ssh    1:5.3p1-3ubuntu6 
openssh-server 1:5.3p1-3ubuntu6 
openssh-client 1:5.3p1-3ubuntu6 
openssl   0.9.8k-7ubuntu8.6 
libssl-dev  0.9.8k-7ubuntu8.6 

情节变得

如果我删除libssh2-1libssh2-1-dev,我得到一个错误,如预期:

Can't load '/usr/local/lib/perl/5.10.1/auto/Net/SSH2/SSH2.so' 

如果然后我从源代码构建libssh2,我无法重新安装Net::SSH2,因为它无法找到开发标题。但是,如果我重新安装libssh2-1libssh2-1-dev,然后从源代码构建并安装libssh2,它就会起作用。

这是否意味着Ubuntu 10.04上的libssh2-1-dev的构建有问题?如果是这样,我如何从源代码安装libssh2并正确安装Net::SSH2,而不需要libssh2-1-dev。我认为从源代码构建覆盖或覆盖Ubuntu软件包。

UPDATE

正如Daniel Stenberg's reply指出,Ubuntu的10.04包现在已经过时了一点(1.2.2版本,与1.2.8最新的稳定版本相比)。在Ubuntu软件包的顶部安装libssh2解决了这个问题。但是,这对我来说很混乱。我如何删除Ubuntu软件包,从源代码安装libssh2,并仍然构建Net :: SSH2 —如何告诉Net :: SSH2在哪里可以找到libssh2开发头文件?

UPDATE 2

salvacame to the rescue again,并显示如何Net::SSH2安装者可以用libinclude目录被配置,使得它可以与源被用于安装libssh2的。谢谢salva!请注意,代替修补Makefile.PL,可以仅覆盖Makefile.PL顶部的$lib$inc变量。直到我看到salva的补丁时,我才意识到这一点。

回答

1

我已经能够在Ubuntu 11.04 libnet-ssh2-perl软件包中使用带Net :: SSH2的密码保护密钥成功登录到服务器。

无论如何,考虑使用Net::OpenSSHNet::OpenSSH::Compat::SSH2而不是Net :: SSH2。

更新Net::OpenSSH::Compat::SSH2试图成为Net :: SSH2的替代品。没有必要为了尝试修补程序:

perl -MNet::OpenSSH::Compat=Net::SSH2 yor_app.pl 
+0

感谢您的答复。我的测试脚本是帮助缩小与使用Net :: SSH2的另一个应用程序的问题,所以不幸的是,我坚持使用它。该应用程序是开源的,所以我最终可能会提交一个允许使用其中一种替代方案的修补程序。同时,我通过从源代码安装来实现它,但是我想解决安装了Ubuntu软件包和源代码包的混乱情况。 – Mike 2011-05-27 07:00:17

+0

感谢您的更新 - 这非常酷。我已经在我的测试脚本上尝试过了,它完美地工作。它应该很简单,可以在适当的应用程序中覆盖Net :: SSH2。更重要的是,这是一个非常简单的补丁,可以添加到未来的版本中 - 如果可用,应用程序可以使用Net :: OpenSSH :: Compat :: SSH2,如果不可用,可以回退到Net :: SSH2。谢谢。 – Mike 2011-05-27 08:43:39

+0

Net :: OpenSSH :: Compat :: SSH2还不是一个成熟的模块。不要犹豫,以报告任何错误或问题,你可能会发现。 – salva 2011-05-27 09:50:35

1

当您从源码包安装libssh2默认情况下将自己安装在/ usr/local的,但默认包在/ usr安装哪可能是为什么它只能找到“库存”安装版本。

不幸的是,它似乎你的Ubuntu有一个相当旧的libssh2版本,因为它从那以后一直被修复很多。

我建议使用libssh2-devel邮件列表来深入讨论libssh2问题。这是一个小而友好的社区。

+0

是的,Ubuntu libssh2软件包版本是1.2.2,而最新的稳定版本是1.2.8版本。最新的版本确实解决了这个问题,但我想知道如何在没有安装Ubuntu软件包的情况下构建和编译Net :: SSH2。也就是说,我该如何告诉Net :: SSH2安装程序在哪里可以找到开发头文件? – Mike 2011-05-27 07:10:10

1

我为Net :: SSH2 Makefile.PL创建了一个patch,它允许从命令行设置libssh2库和头文件的位置。

以下是完整的构建过程中使用它libssh2 +网:: SSH2捕获:

[email protected]:/tmp/salva$ wget http://www.libssh2.org/download/libssh2-1.2.8.tar.gz 
--2011-05-27 11:21:10-- http://www.libssh2.org/download/libssh2-1.2.8.tar.gz 
Resolving www.libssh2.org... 80.67.6.50 
Connecting to www.libssh2.org|80.67.6.50|:80... connected. 
HTTP request sent, awaiting response... 200 OK 
Length: 637707 (623K) [application/x-gzip] 
Saving to: `libssh2-1.2.8.tar.gz' 

100%[================================================================================================================================================================================================>] 637,707  525K/s in 1.2s  

2011-05-27 11:21:14 (525 KB/s) - `libssh2-1.2.8.tar.gz' saved [637707/637707] 

[email protected]:/tmp/salva$ tar xzf libssh2-1.2.8.tar.gz 
[email protected]:/tmp/salva$ cd libssh2-1.2.8 
[email protected]:/tmp/salva/libssh2-1.2.8$ ./configure --prefix=/usr/local/libssh2 
checking whether to enable maintainer-specific portions of Makefiles... no 
checking for sed... /bin/sed 
checking for a BSD-compatible install... /usr/bin/install -c 
... 

[email protected]:/tmp/salva/libssh2-1.2.8$ make 
Making all in src 
make[1]: Entering directory `/tmp/salva/libssh2-1.2.8/src' 
make all-am 
make[2]: Entering directory `/tmp/salva/libssh2-1.2.8/src' 
if /bin/bash ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I../include -I../src -g -O2 -MT channel.lo -MD -MP -MF ".deps/channel.Tpo" -c -o channel.lo channel.c; \ 
    then mv -f ".deps/channel.Tpo" ".deps/channel.Plo"; else rm -f ".deps/channel.Tpo"; exit 1; fi 
libtool: compile: gcc -DHAVE_CONFIG_H -I../include -I../src -g -O2 -MT channel.lo -MD -MP -MF .deps/channel.Tpo -c channel.c -fPIC -DPIC -o .libs/channel.o 
... 

[email protected]:/tmp/salva/libssh2-1.2.8$ sudo make install 
Making install in src 
make[1]: Entering directory `/tmp/salva/libssh2-1.2.8/src' 
make[2]: Entering directory `/tmp/salva/libssh2-1.2.8/src' 
test -z "/usr/local/libssh2/lib" || mkdir -p -- "/usr/local/libssh2/lib" 
/bin/bash ../libtool --mode=install /usr/bin/install -c 'libssh2.la' '/usr/local/libssh2/lib/libssh2.la' 
libtool: install: /usr/bin/install -c .libs/libssh2.so.1.0.1 /usr/local/libssh2/lib/libssh2.so.1.0.1 
... 

[email protected]:/tmp/salva/libssh2-1.2.8$ cd .. 
[email protected]:/tmp/salva$ wget http://search.cpan.org/CPAN/authors/id/R/RK/RKITOVER/Net-SSH2-0.35.tar.gz 
--2011-05-27 11:22:56-- http://search.cpan.org/CPAN/authors/id/R/RK/RKITOVER/Net-SSH2-0.35.tar.gz 
Resolving search.cpan.org... 207.115.101.144 
Connecting to search.cpan.org|207.115.101.144|:80... connected. 
HTTP request sent, awaiting response... 302 Found 
Location: http://osl.ugr.es/CPAN/authors/id/R/RK/RKITOVER/Net-SSH2-0.35.tar.gz [following] 
--2011-05-27 11:22:59-- http://osl.ugr.es/CPAN/authors/id/R/RK/RKITOVER/Net-SSH2-0.35.tar.gz 
Resolving osl.ugr.es... 150.214.21.7 
Connecting to osl.ugr.es|150.214.21.7|:80... connected. 
HTTP request sent, awaiting response... 200 OK 
Length: 92434 (90K) [application/x-gzip] 
Saving to: `Net-SSH2-0.35.tar.gz' 

100%[================================================================================================================================================================================================>] 92,434  328K/s in 0.3s  

2011-05-27 11:22:59 (328 KB/s) - `Net-SSH2-0.35.tar.gz' saved [92434/92434] 

[email protected]:/tmp/salva$ tar xzf Net-SSH2-0.35.tar.gz 
[email protected]:/tmp/salva$ cd Net-SSH2-0.35 
[email protected]:/tmp/salva/Net-SSH2-0.35$ wget -q --no-check-certificate -O - https://github.com/salva/net-ssh2/commit/3c7261f4584137f4240d204731e20f709f1addb1.patch|patch -p1 
patching file Makefile.PL 
[email protected]:/tmp/salva/Net-SSH2-0.35$ perl Makefile.PL lib=/usr/local/libssh2/lib/ inc=/usr/local/libssh2/include/ 

The libssh2 library is required by this module. If you don't have it, you can 
download it from http://www.libssh2.org; you may also need OpenSSL, which can be 
obtained from http://www.openssl.org. 

Debian: sudo aptitude install libssh2-1-dev 
OpenSUSE: sudo zypper in libssh2-1 libssh2-devel 

Checking if your kit is complete... 
Looks good 
Writing Makefile for Net::SSH2 
[email protected]:/tmp/salva/Net-SSH2-0.35$ make 
cp lib/Net/SSH2/File.pm blib/lib/Net/SSH2/File.pm 
cp lib/Net/SSH2/PublicKey.pm blib/lib/Net/SSH2/PublicKey.pm 
cp lib/Net/SSH2/Dir.pm blib/lib/Net/SSH2/Dir.pm 
cp lib/Net/SSH2/SFTP.pm blib/lib/Net/SSH2/SFTP.pm 
cp lib/Net/SSH2/Listener.pm blib/lib/Net/SSH2/Listener.pm 
cp lib/Net/SSH2/Channel.pm blib/lib/Net/SSH2/Channel.pm 
cp lib/Net/SSH2.pm blib/lib/Net/SSH2.pm 
AutoSplitting blib/lib/Net/SSH2.pm (blib/lib/auto/Net/SSH2) 
/usr/bin/perl "-Iinc" /usr/local/share/perl/5.10.1/ExtUtils/xsubpp -typemap /usr/share/perl/5.10/ExtUtils/typemap -typemap typemap SSH2.xs > SSH2.xsc && mv SSH2.xsc SSH2.c 
cc -c /usr/local/libssh2/include/ -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g -DVERSION=\"0.35\" -DXS_VERSION=\"0.35\" -fPIC "-I/usr/lib/perl/5.10/CORE" SSH2.c 
In file included from SSH2.xs:11:0: 
ppport.h:3042:0: warning: "PERL_UNUSED_DECL" redefined 
/usr/lib/perl/5.10/CORE/perl.h:330:0: note: this is the location of the previous definition 
cc: /usr/local/libssh2/include/: linker input file unused because linking not done 
Running Mkbootstrap for Net::SSH2() 
chmod 644 SSH2.bs 
rm -f blib/arch/auto/Net/SSH2/SSH2.so 
LD_RUN_PATH="/usr/local/libssh2/lib:/lib/x86_64-linux-gnu" cc -shared -O2 -g -L/usr/local/lib -fstack-protector SSH2.o -o blib/arch/auto/Net/SSH2/SSH2.so  \ 
     -L/usr/local/libssh2/lib/ -lssh2 -lz -lssl -lcrypto  \ 

chmod 755 blib/arch/auto/Net/SSH2/SSH2.so 
cp SSH2.bs blib/arch/auto/Net/SSH2/SSH2.bs 
chmod 644 blib/arch/auto/Net/SSH2/SSH2.bs 
Manifying blib/man3/Net::SSH2::File.3pm 
Manifying blib/man3/Net::SSH2::Dir.3pm 
Manifying blib/man3/Net::SSH2::PublicKey.3pm 
Manifying blib/man3/Net::SSH2::SFTP.3pm 
Manifying blib/man3/Net::SSH2::Listener.3pm 
Manifying blib/man3/Net::SSH2::Channel.3pm 
Manifying blib/man3/Net::SSH2.3pm 
[email protected]:/tmp/salva/Net-SSH2-0.35$ ldd ./blib/arch/auto/Net/SSH2/SSH2.so 
    linux-vdso.so.1 => (0x00007fff20abc000) 
    libssh2.so.1 => /usr/local/libssh2/lib/libssh2.so.1 (0x00007f464d52f000) 
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f464d317000) 
    libssl.so.0.9.8 => /lib/libssl.so.0.9.8 (0x00007f464d09a000) 
    libcrypto.so.0.9.8 => /lib/libcrypto.so.0.9.8 (0x00007f464cd0b000) 
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f464c977000) 
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f464c772000) 
    /lib64/ld-linux-x86-64.so.2 (0x00007f464d97e000) 
[email protected]:/tmp/salva/Net-SSH2-0.35$ sudo make install 
... 
+0

感谢这个解决方案,它超越了责任的要求!我试过了,但Makefile.PL失败,出现如下错误:加载共享库时出错:libssh2.so.1:无法打开共享目标文件:没有这样的文件或目录错误结果:'ssh2''奇怪的是,如果我删除'/ usr/local/libssh2/lib/libssh2.so.1'符号链接到'/ usr/local/libssh2/lib/libssh2.so.1.0.1',它可以工作。 – Mike 2011-05-27 12:02:55

+0

Rafael Kitover也发布了Net :: SSH2的0.36版本,并加入了我的补丁 – salva 2011-05-28 22:30:42