[rancid] Re: Problems with clogin and Extreme XOS
john heasley
heas at shrubbery.net
Thu Mar 16 23:53:28 UTC 2006
Thu, Mar 16, 2006 at 11:10:01AM +0100, Tore Anderson:
>
> Hi. I'm having some issues using RANCID (v2.3.2a3) with some switches
> running Extreme XOS (version 11.3.3.7). My ~/.cloginrc looks as
> follows:
>
> add password * passwordhere
> add user * admin
> add passprompt * "password"
> add method * ssh
> add autoenable * 1
>
> First, a minor issue. When I run clogin with the -c argument, it
> seems to insist on first running the command "term length 0", which
> isn't available in XOS. The supplied command is afterwards run without
> any problems, even if the output would normally cause paging. (The XOS
> command for disabling the pager for one session only is "disable
> clipaging").
when clogin connects, it looks for that weird extreme prompt enumeration
and marks the host as an extreme. with that in mind, it should deal with
the * in the prompt and not try to adjust the (global) term length value.
It looks like they changed their prompt format from :N to .N, or does it
allow you to do that in the configuration?
> A bigger problem, is that the prompt changes when the configuration is
> unsaved - the string "* " is prepended. RANCID is appararantly unable
> to cope with this:
>
> tore at echo :) clogin -c "show version" cs0-hmg9.int
> cs0-hmg9.int
> spawn ssh -c 3des -x -l admin cs0-hmg9.int
> Keyboard-interactive authentication
> Enter password for admin:
> ExtremeWare XOS
> Copyright (C) 2000-2005 Extreme Networks. All rights reserved.
> Protected by US Patent Nos: 6,678,248; 6,104,700; 6,766,482; 6,618,388; 6,034,957; 6,859,438.
> ==============================================================================
>
> Press the <tab> or '?' key at any time for completions.
> Remember to save your configuration changes.
>
> * cs0.hmg9.no.linpro.net.1 #
> * cs0.hmg9.no.linpro.net.1 # couldn't compile regular expression pattern: quantifier operand invalid
> while executing
> "expect -nobrace -re {* cs0.hmg9.no.([^#>\r\n]+)?[#>](\([^)\r\n]+\))?} {} -re {[
> ]+} { exp_continue }"
> invoked from within
> "expect {
> -re $reprompt {}
> -re "\[\n\r]+" { exp_continue }
> }"
> (procedure "run_commands" line 23)
> invoked from within
> "run_commands $prompt $command"
> ("foreach" body line 145)
> invoked from within
> "foreach router [lrange $argv $i end] {
> set router [string tolower $router]
> send_user "$router\n"
>
> # Figure out the prompt.
> # autoenabl..."
> (file "/stat/home0/tore/local/bin/clogin" line 686)
> tore at echo :(
>
> It is also impossible to run a command which changes the config and
> thus the prompt:
>
> tore at echo :) clogin -c "configure vlan Adm name SomethingElse; sh ver" cs0-hmg9.int
> cs0-hmg9.int
> spawn ssh -c 3des -x -l admin cs0-hmg9.int
> Keyboard-interactive authentication
> Enter password for admin:
> ExtremeWare XOS
> Copyright (C) 2000-2005 Extreme Networks. All rights reserved.
> Protected by US Patent Nos: 6,678,248; 6,104,700; 6,766,482; 6,618,388; 6,034,957; 6,859,438.
> ==============================================================================
>
> Press the <tab> or '?' key at any time for completions.
> Remember to save your configuration changes.
>
> cs0.hmg9.no.linpro.net.1 #
> cs0.hmg9.no.linpro.net.1 # term length 0
> ^
> %% Invalid input detected at '^' marker.
> cs0.hmg9.no.linpro.net.2 # configure vlan Adm name SomethingElse
> * cs0.hmg9.no.linpro.net.3 #
> Error: TIMEOUT reached
> tore at echo :)
>
> Had I run "sh ver; sh ver" instead, it would have run both command and
> successfully logged out of the script. Side note, shouldn't clogin
> return unsuccessfully when such a timeout error occur?
yes, that needs to be fixed. problem is, accumulative or errored or last
result? ie: for multiple hosts on the command-line, add the errors (or just
1), or stop after the first error, or return the result of the last host.
> I have also a few more low-end Extreme switches running ExtremeWare
> 7.4. Their prompt behaves just like in XOS, yet they work flawlessly
> with RANCID. I don't really know expect, but reading the source code
> of clogin I see that there appears to be a variable named "platform"
> that gets the value "extreme" in some cases. I do not think that is
> correctly set on a switch running XOS. However, there seems to be
> another problem - when I explicitly change the variable to be "extreme"
> in all cases, it still bombs out when the prompt indicating unsaved
> configuration is shown, and it also hangs after having run the (first)
> command:
>
> tore at echo :) clogin -c "sh ver; sh ver" cs1-hmg9.int
> cs1-hmg9.int
> sterm length 0pawn ssh -c 3des -x -l admin cs1-hmg9.int
> Keyboard-interactive authentication
> Enter password for admin:
> ExtremeWare XOS
> Copyright (C) 2000-2005 Extreme Networks. All rights reserved.
> Protected by US Patent Nos: 6,678,248; 6,104,700; 6,766,482; 6,618,388; 6,034,957; 6,859,438.
> ==============================================================================
>
> Press the <tab> or '?' key at any time for completions.
> Remember to save your configuration changes.
>
> cs1.hmg9.no.linpro.net.1 #
> cs1.hmg9.no.linpro.net.1 # sh ver
> Switch : 800143-00-04 0547G-00763 Rev 4.0 BootROM: 1.0.0.9 IMG: 11.3.3.7
> XGM-2xn-1 :
>
> Image : ExtremeWare XOS version 11.3.3.7 v1133b7 by release-manager
> on Thu Feb 9 11:58:36 PST 2006
> BootROM : 1.0.0.9
>
> Error: TIMEOUT reached
> tore at echo :)
>
> (Note that it doesn't attempt to run "term length 0" any longer.)
>
> Any suggestions?
>
> Kind regards
> --
> Tore Anderson
>
> _______________________________________________
> Rancid-discuss mailing list
> Rancid-discuss at shrubbery.net
> http://www.shrubbery.net/mailman/listinfo.cgi/rancid-discuss
More information about the Rancid-discuss
mailing list