blogin Timeout
john heasley
heas at shrubbery.net
Tue Apr 30 22:12:34 UTC 2002
Tue, Apr 30, 2002 at 12:42:01PM -0700, Fergus Roche:
> I'm having problems logging into a Nortel (Accelar 1200) - blogin hangs
> and times out. I have had the same problem with 2.2b8 and 2.2 on 2
> different machines. I am using expect-5.32.2-65, tcl/tk-8.3.3-65 on
> RH7.2 (2.4.9-31), but have also tried expect-5.24 on mandrake
> (2.2.14-15)
> I have tried various combinations of entries in .cloginrc, but always
> with the same result. Any help would be much appreciated.
please try attached. set for rancid-2.2.1 maint rel RSN.
>
>
> $ bin/blogin bay-nr1
> bay-nr1
> spawn telnet bay-nr1
> Trying 10.10.0.1...
> Connected to bay-nr1
> Escape character is '^]'.
>
> ********************************
> * Bay Networks,Inc. *
> * Copyright (c) 1996-1999 *
> * All Rights Reserved *
> * Accelar 1200 *
> * Software Release 2.0.5.7 *
> ********************************
>
> Login:
> Error: TIMEOUT reached
>
>
> $ cat .cloginrc
> add user bay-nr1 readwrite
> add password bay-nr1 {password} I noted Mark Cooper's patch of 11/23/01,
> but that appears to have been included in the 2.2 release.
>
>
> $ cat router.db
> bay-nr1:baynet:up
>
>
>
> Thanks,
> Fergus Roche
> Loudeye Technologies
-------------- next part --------------
#!@EXPECT_PATH@ --
##
##
## Copyright (C) 1997-2001 by Henry Kilmer, Erik Sherk and Pete Whiting.
## All rights reserved.
##
## This software may be freely copied, modified and redistributed without
## fee for non-commerical purposes provided that this copyright notice is
## preserved intact on all copies and modified copies.
##
## There is no warranty or other guarantee of fitness of this software.
## It is provided solely "as is". The author(s) disclaim(s) all
## responsibility and liability with respect to this software's usage
## or its effect upon hardware, computer systems, other software, or
## anything else.
##
##
#
# blogin - Bay Networks(Nortel) login
#
# Unlike the Cisco's, there is no enable function on the Bay's.
# Instead there are seperate User and Manager accounts. A 'system' command
# exists, which i am told does nothing.
#
# Usage line
set usage "Usage: $argv0 \[-autoenable\] \[-noenable\] \[-c command\] \
\[-Evar=x\] \[-e enable-password\] \[-f cloginrc-file\] \[-p user-password\] \
\[-s script-file\] \[-t timeout\] \[-u username\] \
\[-v vty-password\] \[-w enable-username\] \[-x command-file\] \
\[-y ssh_cypher_type\] router \[router...\]\n"
# env(CLOGIN) may contain:
# x == do not set xterm banner or name
# Password file
set password_file $env(HOME)/.cloginrc
# Default is to login to the router
set do_command 0
set do_script 0
# The default is to automatically enable
set enable 0
# The default is that you login non-enabled (tacacs can have you login already enabled)
set autoenable 0
# The default is to look in the password file to find the passwords. This
# tracks if we receive them on the command line.
set do_passwd 1
set do_enapasswd 0
# Find the user in the ENV, or use the unix userid.
if {[ info exists env(CISCO_USER) ] } {
set default_user $env(CISCO_USER)
} elseif {[ info exists env(USER) ]} {
set default_user $env(USER)
} else {
# This uses "id" which I think is portable. At least it has existed
# (without options) on all machines/OSes I've been on recently -
# unlike whoami or id -nu.
if [ catch {exec id} reason ] {
send_error "\nError: could not exec id: $reason\n"
exit 1
}
regexp {\(([^)]*)} "$reason" junk default_user
}
# Sometimes routers take awhile to answer (the default is 10 sec)
set timeout 45
# Process the command line
for {set i 0} {$i < $argc} {incr i} {
set arg [lindex $argv $i]
switch -glob -- $arg {
# Username
-u* -
-U* {
if {! [ regexp .\[uU\](.+) $arg ignore user]} {
incr i
set username [ lindex $argv $i ]
}
# VTY Password
} -p* -
-P* {
if {! [ regexp .\[pP\](.+) $arg ignore userpasswd]} {
incr i
set userpasswd [ lindex $argv $i ]
}
set do_passwd 0
# VTY Password
} -v* -
-v* {
if {! [ regexp .\[vV\](.+) $arg ignore passwd]} {
incr i
set passwd [ lindex $argv $i ]
}
set do_passwd 0
# Enable Username
} -w* -
-W* {
if {! [ regexp .\[wW\](.+) $arg ignore enauser]} {
incr i
set enausername [ lindex $argv $i ]
}
# Environment variable to pass to -s scripts
} -E*
{
if {[ regexp .\[E\](.+)=(.+) $arg ignore varname varvalue]} {
set E$varname $varvalue
} else {
send_user "Error: invalid format for -E in $arg\n"
exit 1
}
# Enable Password
} -e*
{
if {! [ regexp .\[eE\](.+) $arg ignore enapasswd]} {
incr i
set enapasswd [ lindex $argv $i ]
}
set do_enapasswd 0
# Command to run.
} -c* -
-C* {
if {! [ regexp .\[cC\](.+) $arg ignore command]} {
incr i
set command [ lindex $argv $i ]
}
set do_command 1
# Expect script to run.
} -s* -
-S* {
if {! [ regexp .\[sS\](.+) $arg ignore sfile]} {
incr i
set sfile [ lindex $argv $i ]
}
if { ! [ file readable $sfile ] } {
send_user "\nError: Can't read $sfile\n"
exit 1
}
set do_script 1
# 'ssh -c' cypher type
} -y* -
-Y* {
if {! [ regexp .\[eE\](.+) $arg ignore cypher]} {
incr i
set cypher [ lindex $argv $i ]
}
# alternate cloginrc file
} -f* -
-F* {
if {! [ regexp .\[fF\](.+) $arg ignore password_file]} {
incr i
set password_file [ lindex $argv $i ]
}
# Timeout
} -t* -
-T* {
if {! [ regexp .\[tT\](.+) $arg ignore timeout]} {
incr i
set timeout [ lindex $argv $i ]
}
# Command file
} -x* -
-X {
if {! [ regexp .\[xX\](.+) $arg ignore cmd_file]} {
incr i
set cmd_file [ lindex $argv $i ]
}
set cmd_fd [open $cmd_file r]
set cmd_text [read $cmd_fd]
close $cmd_fd
set command [join [split $cmd_text \n] \;]
set do_command 1
# Do we enable?
} -noenable {
set enable 0
# Does tacacs automatically enable us?
} -autoenable {
set autoenable 1
set enable 0
} -* {
send_user "\nError: Unknown argument! $arg\n"
send_user $usage
exit 1
} default {
break
}
}
}
# Process routers...no routers listed is an error.
if { $i == $argc } {
send_user "\nError: $usage"
}
# Only be quiet if we are running a script (it can log its output
# on its own)
if { $do_script } {
log_user 0
} else {
log_user 1
}
#
# Done configuration/variable setting. Now run with it...
#
# Sets Xterm title if interactive...if its an xterm and the user cares
proc label { host } {
global env
# if CLOGIN has an 'x' in it, don't set the xterm name/banner
if [info exists env(CLOGIN)] {
if {[string first "x" $env(CLOGIN)] != -1} { return }
}
# take host from ENV(TERM)
if [info exists env(TERM)] {
if [regexp \^(xterm|vs) $env(TERM) ignore ] {
send_user "\033]1;[lindex [split $host "."] 0]\a"
send_user "\033]2;$host\a"
}
}
}
# This is a helper function to make the password file easier to
# maintain. Using this the password file has the form:
# add password sl* pete cow
# add password at* steve
# add password * hanky-pie
proc add {var args} { global int_$var ; lappend int_$var $args}
proc include {args} {
global env
regsub -all "(^{|}$)" $args {} args
if { [ regexp "^/" $args ignore ] == 0 } {
set args $env(HOME)/$args
}
source_password_file $args
}
proc find {var router} {
upvar int_$var list
if { [info exists list] } {
foreach line $list {
if { [string match [lindex $line 0] $router ] } {
return [lrange $line 1 end]
}
}
}
return {}
}
# Loads the password file. Note that as this file is tcl, and that
# it is sourced, the user better know what to put in there, as it
# could install more than just password info... I will assume however,
# that a "bad guy" could just as easy put such code in the clogin
# script, so I will leave .cloginrc as just an extention of that script
proc source_password_file { password_file } {
global env
if { ! [file exists $password_file] } {
send_user "\nError: password file ($password_file) does not exist\n"
exit 1
}
file stat $password_file fileinfo
if { [expr ($fileinfo(mode) & 007)] != 0000 } {
send_user "\nError: $password_file must not be world readable/writable\n"
exit 1
}
if [ catch {source $password_file} reason ] {
send_user "\nError: $reason\n"
exit 1
}
}
# Log into the router.
proc login { router user userpswd passwd enapasswd prompt cmethod cyphertype } {
global spawn_id in_proc do_command do_script
global u_prompt p_prompt e_prompt
set in_proc 1
# try each of the connection methods in $cmethod until one is successful
set progs [llength $cmethod]
foreach prog [lrange $cmethod 0 end] {
if [string match "telnet*" $prog] {
regexp {telnet(:([^[:space:]]+))*} $prog command suffix port
if {"$port" == ""} {
set retval [ catch {spawn telnet $router} reason ]
} else {
set retval [ catch {spawn telnet $router $port} reason ]
}
if { $retval } {
send_user "\nError: telnet failed: $reason\n"
exit 1
}
} elseif ![string compare $prog "ssh"] {
if [ catch {spawn ssh -c $cyphertype -x -l $user $router} reason ] {
send_user "\nError: ssh failed: $reason\n"
exit 1
}
} elseif ![string compare $prog "rsh"] {
if [ catch {spawn rsh -l $user $router} reason ] {
send_user "\nError: rsh failed: $reason\n"
exit 1
}
} else {
puts "\nError: unknown connection method: $prog"
return 1
}
incr progs -1
sleep 0.3
# This helps cleanup each expect clause.
expect_after {
timeout {
send_user "\nError: TIMEOUT reached\n"
catch {close}; wait
if { $in_proc} {
return 1
} else {
continue
}
} eof {
send_user "\nError: EOF received\n"
catch {close}; wait
if { $in_proc} {
return 1
} else {
continue
}
}
}
# Here we get a little tricky. There are several possibilities:
# the router can ask for a username and passwd and then
# talk to the TACACS server to authenticate you, or if the
# TACACS server is not working, then it will use the enable
# passwd. Or, the router might not have TACACS turned on,
# then it will just send the passwd.
# if telnet fails with connection refused, try ssh
expect {
-re "(Connection refused|Secure connection \[^\n\r]+ refused|Connection closed by)" {
catch {close}; wait
if !$progs {
send_user "\nError: Connection Refused ($prog)\n"; return 1
}
} eof { send_user "\nError: Couldn't login\n"; wait; return 1
} -nocase "unknown host\r" {
catch {close};
send_user "\nError: Unknown host\n"; wait; return 1
} "Host is unreachable" {
catch {close};
send_user "\nError: Host Unreachable!\n"; wait; return 1
} "No address associated with name" {
catch {close};
send_user "\nError: Unknown host\n"; wait; return 1
}
-re "(Host key not found |The authenticity of host .* be established).*\(yes\/no\)\?" {
send "yes\r"
send_user "\nHost $router added to the list of known hosts.\n"
exp_continue }
-re "HOST IDENTIFICATION HAS CHANGED.* \(yes\/no\)\?" {
send "no\r"
send_user "\nError: The host key for $router has changed. Update the SSH known_hosts file accordingly.\n"
return 1 }
-re "Offending key for .* \(yes\/no\)\?" {
send "no\r"
send_user "\nError: host key mismatch for $router. Update the SSH known_hosts file accordingly.\n"
return 1 }
-re "$u_prompt" { send "$user\r"
expect {
eof { send_user "\nError: Couldn't login\n"; wait; return 1 }
"Login invalid" { send_user "\nError: Invalid login\n"; vatch {close}; wait; return 1 }
-re "$p_prompt" { send "$userpswd\r" }
"$prompt" { set in_proc 0; return 0 }
}
exp_continue
}
-re "$p_prompt" {
if ![string compare $prog "ssh"] {
send "$userpswd\r"
} else {
send "$passwd\r"
}
expect {
eof { send_user "\nError: Couldn't login\n"; wait; return 1 }
-re "$e_prompt" { send "$enapasswd\r" }
"$prompt" { set in_proc 0; return 0 }
}
exp_continue
}
"$prompt" { break; }
denied { send_user "\nError: Check your passwd for $router\n"
catch {close}; wait; return 1
}
"% Bad passwords" {send_user "\nError: Check your passwd for $router\n"; return 1 }
}
}
set in_proc 0
return 0
}
# Enable
proc do_enable { enauser enapasswd } {
global prompt in_proc
global u_prompt e_prompt
set in_proc 1
send "enable\r"
expect {
-re "$u_prompt" { send "$enauser\r"; exp_continue}
-re "$e_prompt" { send "$enapasswd\r"; exp_continue}
"#" { set prompt "#" }
"(enable)" { set prompt "> (enable) " }
denied { send_user "\nError: Check your Enable passwd\n"; return 1}
"% Bad passwords" { send_user "\nError: Check your Enable passwd\n"
return 1
}
}
# We set the prompt variable (above) so script files don't need
# to know what it is.
set in_proc 0
return 0
}
# Run commands given on the command line.
proc run_commands { prompt command } {
global in_proc
set in_proc 1
send "more off\r"
expect $prompt {}
regsub -all "\[)(]" $prompt {\\&} reprompt
# Is this a multi-command?
if [ string match "*\;*" "$command" ] {
set commands [split $command \;]
set num_commands [llength $commands]
for {set i 0} {$i < $num_commands} { incr i} {
send "[subst -nocommands [lindex $commands $i]]\r"
expect {
-re "^\[^\n\r *]*$reprompt" {}
-re "^\[^\n\r]*$reprompt." { exp_continue }
-re "\[\n\r]" { exp_continue }
}
}
} else {
send "[subst -nocommands $command]\r"
expect {
-re "^\[^\n\r *]*$reprompt" {}
-re "^\[^\n\r]*$reprompt." { exp_continue }
-re "\[\n\r]" { exp_continue }
}
}
send "logout\r"
expect {
"\n" { exp_continue }
timeout { return 0 }
eof { return 0 }
}
set in_proc 0
}
#
# For each router... (this is main loop)
#
source_password_file $password_file
set in_proc 0
foreach router [lrange $argv $i end] {
set router [string tolower $router]
send_user "$router\n"
# Figure out prompt.
# Since autoenable is off by default, if we have it defined, it
# was done on the command line. If it is not specifically set on the
# command line, check the password file.
if $autoenable {
set prompt "#"
} else {
set ae [find autoenable $router]
if { "$ae" == "1" } {
set autoenable 1
set enable 0
set prompt "#"
} else {
set autoenable 0
set prompt ">"
}
}
# look for noenable option in .cloginrc
if { [find noenable $router] != "" } {
set enable 0
}
# Figure out passwords
if { $do_passwd || $do_enapasswd } {
set pswd [find password $router]
if { [llength $pswd] == 0 } {
send_user "Error - no password for $router in $password_file.\n"
continue
}
if { $do_enapasswd && $autoenable == 0 && [llength $pswd] < 2 } {
send_user "Error - no enable password for $router in $password_file.\n"
continue
}
set passwd [lindex $pswd 0]
set enapasswd [lindex $pswd 1]
}
# Figure out username
if {[info exists username]} {
# command line username
set ruser $username
} else {
set ruser [find user $router]
if { "$ruser" == "" } { set ruser $default_user }
}
# Figure out username's password (if different from the vty password)
if {[info exists userpasswd]} {
# command line username
set userpswd $userpasswd
} else {
set userpswd [find userpassword $router]
if { "$userpswd" == "" } { set userpswd $passwd }
}
# Figure out enable username
if {[info exists enausername]} {
# command line enausername
set enauser $enausername
} else {
set enauser [find enauser $router]
if { "$enauser" == "" } { set enauser $ruser }
}
# Figure out prompts
set u_prompt [find userprompt $router]
if { "$u_prompt" == "" } { set u_prompt "(Username|login|user name):" }
set p_prompt [find passprompt $router]
if { "$p_prompt" == "" } { set p_prompt "(\[Pp]assword|passwd):" }
set e_prompt [find enableprompt $router]
if { "$e_prompt" == "" } { set e_prompt "\[Pp]assword:" }
# Figure out cypher type
if {[info exists cypher]} {
# command line cypher type
set cyphertype $cypher
} else {
set cyphertype [find cyphertype $router]
if { "$cyphertype" == "" } { set cyphertype "3des" }
}
# Figure out connection method
set cmethod [find method $router]
if { "$cmethod" == "" } { set cmethod {{telnet}} }
# Login to the router
if {[login $router $ruser $userpswd $passwd $enapasswd $prompt $cmethod $cyphertype]} {
continue
}
if { $enable } {
if {[do_enable $enauser $enapasswd]} {
if { $do_command || $do_script } {
close; wait
continue
}
}
}
if { $do_command } {
if {[run_commands $prompt $command]} {
continue
}
} elseif { $do_script } {
send "more off\r"
expect $prompt {}
source $sfile
close
} else {
label $router
log_user 1
interact
}
# End of for each router
wait
sleep 0.3
}
exit 0
More information about the Rancid-discuss
mailing list