Net::SSH gives OpenSSL::Cipher::CipherError "No message available"
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Key: JRUBY-4075
URL: http://jira.codehaus.org/browse/JRUBY-4075
Project: JRuby
Issue Type: Bug
Components: OpenSSL
Affects Versions: JRuby-OpenSSL 0.5.2
Environment: Solaris 10, JRuby 1.3.1, net-ssh (2.0.15), jruby-openssl
(0.5.2)
Reporter: Paul Blair
We're on Solaris 10, using JRuby 1.3.1 (but we've seen the problem under
regular Ruby 1.8.7 as well), trying to communicate with another Solaris 10
machine. The first problem we ran into was an UnimplementedCipher error, so we
restricted the ciphers we're using to ones that are implemented in
the Ruby Net::SSH module. Now Net::SSH gives us an OpenSSL::Cipher::CipherError
with "No message available."
Here's the code we use to test our ability to connect:
require 'rubygems'
require 'net/ssh'
Net::SSH.start('[HOST]', '[USER]', :verbose => :debug) do |ssh|
puts ssh.exec!("hostname")
end
And here's the result:
jruby -S ssh_troubleshooting.rb
D, [2009-10-05T11:05:47.046000 #17498] DEBUG -- net.ssh.transport.session[98]:
establishing connection to [HOST:PORT]
D, [2009-10-05T11:05:47.096000 #17498] DEBUG -- net.ssh.transport.session[98]:
connection established
I, [2009-10-05T11:05:47.102000 #17498] INFO --
net.ssh.transport.server_version[9a]: negotiating protocol version
D, [2009-10-05T11:05:47.115000 #17498] DEBUG --
net.ssh.transport.server_version[9a]: remote is `SSH-2.0-Sun_SSH_1.1.2'
D, [2009-10-05T11:05:47.116000 #17498] DEBUG --
net.ssh.transport.server_version[9a]: local is `SSH-2.0-Ruby/Net::SSH_2.0.15
java'
D, [2009-10-05T11:05:48.188000 #17498] DEBUG -- tcpsocket[9c]: read 376 bytes
D, [2009-10-05T11:05:49.026000 #17498] DEBUG -- tcpsocket[9c]: received packet
nr 0 type 20 len 372
I, [2009-10-05T11:05:49.032000 #17498] INFO --
net.ssh.transport.algorithms[9e]: got KEXINIT from server
I, [2009-10-05T11:05:49.037000 #17498] INFO --
net.ssh.transport.algorithms[9e]: sending KEXINIT
D, [2009-10-05T11:05:49.045000 #17498] DEBUG -- tcpsocket[9c]: queueing packet
nr 0 type 20 len 556
D, [2009-10-05T11:05:49.047000 #17498] DEBUG -- tcpsocket[9c]: sent 560 bytes
I, [2009-10-05T11:05:49.050000 #17498] INFO --
net.ssh.transport.algorithms[9e]: negotiating algorithms
D, [2009-10-05T11:05:49.066000 #17498] DEBUG --
net.ssh.transport.algorithms[9e]: negotiated:
* kex: diffie-hellman-group-exchange-sha1
* host_key: ssh-rsa
* encryption_server: aes128-cbc
* encryption_client: aes128-cbc
* hmac_client: hmac-md5
* hmac_server: hmac-md5
* compression_client: zlib
* compression_server: zlib
* language_client:
* language_server:
D, [2009-10-05T11:05:49.067000 #17498] DEBUG --
net.ssh.transport.algorithms[9e]: exchanging keys
D, [2009-10-05T11:05:53.597000 #17498] DEBUG -- tcpsocket[9c]: queueing packet
nr 1 type 34 len 20
D, [2009-10-05T11:05:53.599000 #17498] DEBUG -- tcpsocket[9c]: sent 24 bytes
D, [2009-10-05T11:05:53.613000 #17498] DEBUG -- tcpsocket[9c]: read 152 bytes
D, [2009-10-05T11:05:53.617000 #17498] DEBUG -- tcpsocket[9c]: received packet
nr 1 type 31 len 148
D, [2009-10-05T11:05:54.174000 #17498] DEBUG -- tcpsocket[9c]: queueing packet
nr 2 type 32 len 140
D, [2009-10-05T11:05:54.176000 #17498] DEBUG -- tcpsocket[9c]: sent 144 bytes
D, [2009-10-05T11:05:54.212000 #17498] DEBUG -- tcpsocket[9c]: read 464 bytes
D, [2009-10-05T11:05:54.215000 #17498] DEBUG -- tcpsocket[9c]: received packet
nr 2 type 33 len 444
D, [2009-10-05T11:05:54.987000 #17498] DEBUG -- tcpsocket[9c]: queueing packet
nr 3 type 21 len 20
D, [2009-10-05T11:05:54.989000 #17498] DEBUG -- tcpsocket[9c]: sent 24 bytes
D, [2009-10-05T11:05:54.993000 #17498] DEBUG -- tcpsocket[9c]: received packet
nr 3 type 21 len 12
D, [2009-10-05T11:05:55.009000 #17498] DEBUG --
net.ssh.authentication.session[a6]: beginning authentication of `[USER]'
/path/to/jruby/lib/ruby/gems/1.8/gems/net-ssh-2.0.15/lib/net/ssh/transport/state.rb:79:in
`update_cipher': No message available (OpenSSL::Cipher::CipherError)
from
/path/to/jruby/lib/ruby/gems/1.8/gems/net-ssh-2.0.15/lib/net/ssh/transport/packet_stream.rb:139:in
`enqueue_packet'
from
/path/to/jruby/lib/ruby/gems/1.8/gems/net-ssh-2.0.15/lib/net/ssh/transport/packet_stream.rb:108:in
`send_packet'
from
/path/to/jruby/lib/ruby/gems/1.8/gems/net-ssh-2.0.15/lib/net/ssh/transport/session.rb:217:in
`send_message'
from
/path/to/jruby/lib/ruby/gems/1.8/gems/net-ssh-2.0.15/lib/net/ssh/authentication/session.rb:52:in
`authenticate'
from
/path/to/jruby/lib/ruby/gems/1.8/gems/net-ssh-2.0.15/lib/net/ssh.rb:183:in
`start'
from /path/to/test/code/ssh_troubleshooting.rb:3
Changing .ssh/config settings to
Compression no
ForwardX11 no
made no difference (unlike with the next bug I'm filing). Neither did changing
the cipher.
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