blogin Timeout
john heasley
heas at shrubbery.net
Tue Apr 30 22:18:49 UTC 2002
Tue, Apr 30, 2002 at 10:12:34PM +0000, john heasley:
> 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.
actually, scratch that comment. you probably want this version; but,
i think the problem is really the case of "Login". the user prompt
its looking for is the regex "(Username|login|user name):". if you
add to .cloginrc:
add userprompt bay-nr1 {Login:}
i think this will work.
i'm interested to know if the case has changed or if we've made a mistake
somewhere along the line and inadvertently changed the regex.
> >
> >
> > $ 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
> #!@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
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