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Diffstat (limited to 'bin/mrvlogin.in')
| -rw-r--r-- | bin/mrvlogin.in | 774 |
1 files changed, 774 insertions, 0 deletions
diff --git a/bin/mrvlogin.in b/bin/mrvlogin.in new file mode 100644 index 0000000..2de0c28 --- /dev/null +++ b/bin/mrvlogin.in @@ -0,0 +1,774 @@ +#! @EXPECT_PATH@ -- +## +## $Id$ +## +## @PACKAGE@ @VERSION@ +## Copyright (c) 1997-2008 by Terrapin Communications, Inc. +## All rights reserved. +## +## This code is derived from software contributed to and maintained by +## Terrapin Communications, Inc. by Henry Kilmer, John Heasley, Andrew Partan, +## Pete Whiting, Austin Schutz, and Andrew Fort. +## +## Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions +## are met: +## 1. Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## 2. Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in the +## documentation and/or other materials provided with the distribution. +## 3. All advertising materials mentioning features or use of this software +## must display the following acknowledgement: +## This product includes software developed by Terrapin Communications, +## Inc. and its contributors for RANCID. +## 4. Neither the name of Terrapin Communications, Inc. nor the names of its +## contributors may be used to endorse or promote products derived from +## this software without specific prior written permission. +## 5. It is requested that non-binding fixes and modifications be contributed +## back to Terrapin Communications, Inc. +## +## THIS SOFTWARE IS PROVIDED BY Terrapin Communications, INC. AND CONTRIBUTORS +## ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +## TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +## PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COMPANY OR CONTRIBUTORS +## BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +## CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +## SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +## INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +## CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +## ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +## POSSIBILITY OF SUCH DAMAGE. +# +# The expect login scripts were based on Erik Sherk's gwtn, by permission. +# +# clogin - Cisco login +# +# Most options are intuitive for logging into a Cisco router. +# The default is to enable (thus -noenable). Some folks have +# setup tacacs to have a user login at priv-lvl = 15 (enabled) +# so the -autoenable flag was added for this case (don't go through +# the process of enabling and the prompt will be the "#" prompt. +# The default username password is the same as the vty password. +# + +# Usage line +set usage "Usage: $argv0 \[-dV\] \[-autoenable\] \[-noenable\] \[-c command\] \ +\[-Evar=x\] \[-e enable-password\] \[-f cloginrc-file\] \[-p user-password\] \ +\[-s script-file\] \[-t timeout\] \[-u username\] \ +\[-v vty-password\] \[-w enable-username\] \[-x command-file\] \ +\[-y ssh_cypher_type\] 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 avenable 1 +# The default is that you login non-enabled (tacacs can have you login already +# enabled) +set avautoenable 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 1 +# +set send_human {.4 .4 .7 .3 5} + +# 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) +} elseif {[ info exists env(LOGNAME) ]} { + set default_user $env(LOGNAME) +} 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 +} +if {[ info exists env(CLOGINRC) ]} { + set password_file $env(CLOGINRC) +} + +# Sometimes routers take awhile to answer (the default is 10 sec) +set timeout 45 + +# Process the command line +for {set i 0} {$i < $argc} {incr i} { + set arg [lindex $argv $i] + + switch -glob -- $arg { + # Expect debug mode + -d* { + exp_internal 1 + # 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* { + if {! [regexp .\[vV\](.+) $arg ignore passwd]} { + incr i + set passwd [ lindex $argv $i ] + } + set do_passwd 0 + # Version string + } -V* { + send_user "@PACKAGE@ @VERSION@\n" + exit 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 "\nError: invalid format for -E in $arg\n" + exit 1 + } + # Enable Password + } -e* + { + if {! [regexp .\[e\](.+) $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 ] + } + if [ catch {set cmd_fd [open $cmd_file r]} reason ] { + send_user "\nError: $reason\n" + exit 1 + } + 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 avenable 0 + # Does tacacs automatically enable us? + } -autoenable { + set avautoenable 1 + set avenable 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. +# returns: 0 on success, 1 on failure +proc login { router user userpswd passwd enapasswd cmethod cyphertype } { + global command spawn_id in_proc do_command do_script + global prompt u_prompt p_prompt e_prompt sshcmd + set in_proc 1 + set uprompt_seen 0 + + # try each of the connection methods in $cmethod until one is successful + set progs [llength $cmethod] + foreach prog [lrange $cmethod 0 end] { + incr progs -1 + if [string match "telnet*" $prog] { + regexp {telnet(:([^[:space:]]+))*} $prog methcmd suffix port + if {"$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" + return 1 + } + } elseif [string match "ssh*" $prog] { + regexp {ssh(:([^[:space:]]+))*} $prog methcmd suffix port + if {"$port" == ""} { + set retval [ catch {spawn $sshcmd -c $cyphertype -x -l $user $router} reason ] + + } else { + set retval [ catch {spawn $sshcmd -c $cyphertype -x -l $user -p $port $router} reason ] + } + if { $retval } { + send_user "\nError: $sshcmd failed: $reason\n" + return 1 + } + } else { + send_user "\nError: unknown connection method: $prog\n" + return 1 + } + sleep 0.3 + + # This helps cleanup each expect clause. + expect_after { + timeout { + send_user "\nError: TIMEOUT reached\n" + catch {close}; catch {wait}; + if { $in_proc} { + return 1 + } else { + continue + } + } eof { + send_user "\nError: EOF received\n" + catch {close}; catch {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)" { + catch {close}; catch {wait}; + if !$progs { + send_user "\nError: Connection Refused ($prog): $router\n" + return 1 + } + } + -re "(Connection closed by|Connection to \[^\n\r]+ closed)" { + catch {close}; catch {wait}; + if !$progs { + send_user "\nError: Connection closed ($prog): $router\n" + return 1 + } + } + eof { send_user "\nError: Couldn't login: $router\n"; wait; return 1 } + -nocase "unknown host\r" { + send_user "\nError: Unknown host $router\n"; + catch {close}; catch {wait}; + return 1 + } + "Host is unreachable" { + send_user "\nError: Host Unreachable: $router\n"; + catch {close}; catch {wait}; + return 1 + } + "No address associated with name" { + send_user "\nError: Unknown host $router\n"; + catch {close}; catch {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" + catch {close}; catch {wait}; + 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" + catch {close}; catch {wait}; + return 1 + } + -re "(denied|Sorry)" { + send_user "\nError: Check your passwd for $router\n" + catch {close}; catch {wait}; return 1 + } + "Login failed" { + send_user "\nError: Check your passwd for $router\n" + catch {close}; catch {wait}; return 1 + } + -re "% (Bad passwords|Authentication failed)" { + send_user "\nError: Check your passwd for $router\n" + catch {close}; catch {wait}; return 1 + } + "Press any key to continue" { + # send_user "Pressing the ANY key\n" + send "\r" + exp_continue + } + -re "Enter Selection: " { + # Catalyst 1900s have some lame menu. Enter + # K to reach a command-line. + send "K\r" + exp_continue + } + -re "Last login:" { + exp_continue + } + -re "@\[^\r\n]+ $p_prompt" { + # ssh pwd prompt + sleep 1 + send -h -- "$userpswd\r" + exp_continue + } + -re "$u_prompt" { + send -h -- "$user\r" + set uprompt_seen 1 + exp_continue + } + -re "$p_prompt" { + sleep 1 + if {$uprompt_seen == 1} { + send -h -- "$userpswd\r" + } else { + send -h -- "$passwd\r" + } + exp_continue + } + -re "$prompt" { break; } + "Login invalid" { + send_user "\nError: Invalid login: $router\n"; + catch {close}; catch {wait}; return 1 + } + -re "\[^\r\n]\[\r\n]+" { exp_continue } + } + } + + 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 -h "enable\r" + expect { + -re "$u_prompt" { send -h -- "$enauser\r"; exp_continue} + -re "$e_prompt" { send -h -- "$enapasswd\r"; exp_continue} + "#" { set prompt "#" } + -re "(denied|Sorry|Incorrect)" { + # % Access denied - from local auth and poss. others + send_user "\nError: Check your Enable passwd\n"; + return 1 + } + "% Error in authentication" { + 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 -h "terminal length 0\r" + # escape any parens in the prompt, such as "(enable)" + regsub -all {[)(]} $prompt {\\&} reprompt + # match cisco config mode prompts too, such as router(config-if)#, + # but catalyst does not change in this fashion. + regsub -all {^(.{1,11}).*([#>])$} $reprompt {\1([^#>\r\n]+)?\2(\\([^)\\r\\n]+\\))?} reprompt + expect { + -re $reprompt {} + -re "\[\n\r]+" { exp_continue } + } + + # this is the only way i see to get rid of more prompts in o/p..grrrrr + log_user 0 + + set commands [split $command \;] + set num_commands [llength $commands] + # the pager can not be turned off on the PIX, so we have to look + # for the "More" prompt. the extreme is equally obnoxious, with a + # global switch in the config. + # XXX I think the pager can be turned off and this is just an artifact of + # clogin + for {set i 0} {$i < $num_commands} { incr i} { + send -h -- "[subst -nocommands [lindex $commands $i]]\r" + expect { + -re "\b+" { exp_continue } + -re "^\[^\n\r *]*$reprompt" { send_user -- "$expect_out(buffer)" + } + -re "^\[^\n\r]*$reprompt." { send_user -- "$expect_out(buffer)" + exp_continue } + -re "^--More--\[\r\n]+" { # specific match c1900 pager + send " " + exp_continue } + -re "\[\n\r]+" { send_user -- "$expect_out(buffer)" + exp_continue } + -re "\[^\r\n]*Press <SPACE> to cont\[^\r\n]*" { + send " " + # bloody ^[[2K after " " + expect { + -re "^\[^\r\n]*\r" {} + } + exp_continue + } + -re "^ *--More--\[^\n\r]*" { + send " " + exp_continue } + -re "^<-+ More -+>\[^\n\r]*" { + send_user -- "$expect_out(buffer)" + send " " + exp_continue } + } + } + log_user 1 + + send -h "exit\r" + expect { + -re "^\[^\n\r *]*$reprompt" { + # the Cisco CE and Jnx ERX + # return to non-enabled mode + # on exit in enabled mode. + send -h "exit\r" + exp_continue; + } + "Would you like to save them now" { # Force10 + send "n\r" + exp_continue + } + "Configuration changes have occurred.*" { # Cisco CSS + send "n\r" + exp_continue + } + "Do you wish to save your configuration changes" { + send "n\r" + exp_continue + } + -re "\[\n\r]+" { exp_continue } + timeout { catch {close}; catch {wait}; + 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 +set exitval 0 +foreach router [lrange $argv $i end] { + set router [string tolower $router] + send_user -- "$router\n" + + # Figure out the prompt. + # 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 $avautoenable { + set autoenable 1 + set enable 0 + set prompt "#\[^\[:digit:]]" + } else { + set ae [find autoenable $router] + if { "$ae" == "1" } { + set autoenable 1 + set enable 0 + set prompt "#\[^\[:digit:]]" + } else { + set autoenable 0 + set enable $avenable + 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 -- "\nError: no password for $router in $password_file.\n" + continue + } + if { $enable && $do_enapasswd && $autoenable == 0 && [llength $pswd] < 2 } { + send_user -- "\nError: no enable password for $router in $password_file.\n" + continue + } + set passwd [join [lindex $pswd 0] ""] + set enapasswd [join [lindex $pswd 1] ""] + } else { + set passwd $userpasswd + set enapasswd $enapasswd + } + + # Figure out username + if {[info exists username]} { + # command line username + set ruser $username + } else { + set ruser [join [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 [join [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 [join [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|login|user name):" + } else { + set u_prompt [join [lindex $u_prompt 0] ""] + } + set p_prompt [find passprompt $router] + if { "$p_prompt" == "" } { + set p_prompt "(\[Pp]assword|passwd):" + } else { + set p_prompt [join [lindex $p_prompt 0] ""] + } + set e_prompt [find enableprompt $router] + if { "$e_prompt" == "" } { + set e_prompt "\[Pp]assword:" + } else { + set e_prompt [join [lindex $e_prompt 0] ""] + } + + # 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} {ssh}} } + + # Figure out the SSH executable name + set sshcmd [find sshcmd $router] + if { "$sshcmd" == "" } { set sshcmd {ssh} } + + # Login to the router + if {[login $router $ruser $userpswd $passwd $enapasswd $cmethod $cyphertype]} { + incr exitval + # if login failed, move on to the next device + continue + } + if { $enable } { + if {[do_enable $enauser $enapasswd]} { + if { $do_command || $do_script } { + incr exitval + catch {close}; catch {wait}; + continue + } + } + } + # we are logged in, now figure out the full prompt + send "\r" + expect { + -re "\[\r\n]+" { exp_continue; } + -re "^.+$prompt" { set junk $expect_out(0,string); + regsub -all "\[\]\[]" $junk {\\&} prompt; + } + } + + if { $do_command } { + if {[run_commands $prompt $command]} { + incr exitval + continue + } + } elseif { $do_script } { + send -h "terminal length 0\r" + expect -re $prompt {} + source $sfile + catch {close}; + } else { + label $router + log_user 1 + interact + } + + # End of for each router + catch {wait}; + sleep 0.3 +} +exit $exitval |