Imported from rancid-2.0.tar.gz.rancid-2.0

1 files changed, 449 insertions, 0 deletions

diff --git a/bin/elogin.in b/bin/elogin.in
new file mode 100755
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--- /dev/null
+++ b/bin/elogin.in
@@ -0,0 +1,449 @@
+#!@EXPECT_PATH@ --
+##
+##
+## Copyright (C) 1997 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.
+##
+##
+#
+# elogin - ADC EZT3 login
+#
+# Most options are intuitive for logging into an ADC EZT3 mux.
+#
+
+# Usage line
+set usage "Usage: $argv0 \[-noenable\] \[-c command\] \
+\[-f cloginrc-file\] \[-p user-password\] \
+\[-s script-file\] \[-t timeout\] \[-u username\] \
+\[-v vty-password\] \[-w enable-username\] \[-x command-file\] \
+\[-y ssh_cypher_type\] 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 1
+# 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
+
+# Find the user in the ENV, or use the unix userid.
+if {[ info exists env(CISCO_USER) ] } {
+    set default_user $env(CISCO_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.
+    regexp {\(([^)]*)} [exec id] 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* {
+	# ignore -w
+	# Enable Password
+	} -e* -
+	-E* {
+	# ignore -e
+	# 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 "Error: 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 {
+	# ignore -noenable
+	# Does tacacs automatically enable us?
+	} -autoenable {
+	# ignore -autoenable
+	} -* {
+	    send_user "Error: Unknown argument! $arg\n"
+	    send_user $usage
+	    exit 1
+	} default {
+	    break
+	}
+    }
+}
+# Process routers...no routers listed is an error.
+if { $i == $argc } {
+    send_user "Error: $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 $var ;lappend $var $args}
+proc find {var router} {
+  source_password_file
+  upvar $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 { } {
+    global env password_file read_password_file
+    if { [info exists read_password_file] } { return }
+    if { [info exists password_file] == 0 } {
+	set password_file $env(HOME)/.cloginrc
+    }
+    if { ! [file exists $password_file] } {
+	send_user "Error: password file ($password_file) does not exist\n"
+	exit 1
+    }
+    set read_password_file 1
+    file stat $password_file fileinfo
+    if { [expr ($fileinfo(mode) & 007)] != 0000 } {
+	send_user "Error: $password_file must not be world readable/writable\n"
+	exit 1
+    }
+    source $password_file
+}
+
+# Log into the router.
+proc login { router user userpswd passwd prompt cyphertype } {
+    global spawn_id in_proc do_command do_script
+    global u_prompt p_prompt
+    set in_proc 1
+    set tryssh 1
+
+    # Telnet to the router & try to login.
+    if [ catch {spawn telnet $router} reason ] {
+	send_user "Error: failed to telnet: $reason\n"
+	exit 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 { $in_proc} {
+		return 1
+	    } else {
+		continue
+	    }
+	}
+    }
+
+    expect {
+	"Connection refused" {
+	    close; wait
+	    sleep 0.3
+		expect eof
+		send_user "Error: Connection Refused\n"; wait; return 1
+	} eof { send_user "Error: Couldn't login\n"; wait; return 1
+	} "Unknown host\r\n" {
+	    expect eof
+	    send_user "Error: Unknown host\n"; wait; return 1
+	} "Host is unreachable" {
+	    expect eof
+	    send_user "Error: Host Unreachable!\n"; wait; return 1
+	} "No address associated with name" {
+	    expect eof
+	    send_user "Error: Unknown host\n"; wait; return 1
+	}
+	-re "$u_prompt"	{ send "$user\r"
+	    expect {
+		"Login incorrect"	{ send_user "Error: Couldn't login\n";
+					  catch {close}; wait; return 1 }
+		eof			{ send_user "Error: Couldn't login\n"; wait; return 1 }
+		-re "$p_prompt"		{ send "$userpswd\r" }
+		"$prompt"		{ set in_proc 0; return 0 }
+	    }
+	    exp_continue
+	}
+	-re "$p_prompt"	{ send "$passwd\r"
+	    expect {
+		"Password incorrect"	{ send_user "Error: Couldn't login\n";
+					  catch {close}; wait; return 1 }
+		eof		{ send_user "Error: Couldn't login\n"; wait; return 1 }
+		"$prompt"	{ set in_proc 0; return 0 }
+	    }
+	    exp_continue
+	}
+	"Password incorrect"	{ send_user "Error: Check your password for $router\n";
+				  catch {close}; wait; return 1 }
+	"$prompt"	{ }
+	denied		{ send_user "Error: Check your passwd for $router\n"
+			    if { $do_command || $do_script } {
+			      send "exit\r"
+			      wait
+			      return 1
+			  } else {
+			      return 1
+			  }
+			}
+	"\r\n"	{ exp_continue; }
+    }
+    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 "screen 0\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."	{ exp_continue }
+		-re "^\[^\n\r *]*$reprompt"	{}
+		-re "\[\n\r]"			{ exp_continue }
+	    }
+	}
+    } else {
+	send "[subst -nocommands $command]\r"
+	expect {
+		-re "^\[^\n\r]*$reprompt."	{ exp_continue }
+		-re "^\[^\n\r *]*$reprompt"	{}
+		-re "\[\n\r]"			{ exp_continue }
+	}
+    }
+    send "exit\r"
+    expect {
+	"\n" { exp_continue }
+	timeout { return 0 }
+	eof { return 0 }
+    }
+    set in_proc 0
+}
+
+#
+# For each router... (this is main loop)
+#
+set in_proc 0
+foreach router [lrange $argv $i end] {
+    set router [string tolower $router]
+    send_user "$router\n"
+
+    # Figure out prompt.
+    set prompt "Active) > "
+	    set autoenable 1
+	    set enable 0
+
+    # Figure out passwords
+    if { $do_passwd } {
+      set pswd [find password $router]
+      if { [llength $pswd] == 0 } {
+	send_user "Error - no password for $router in $password_file.\n"
+	continue
+      }
+      set passwd [lindex $pswd 0]
+    }
+
+    # 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 prompts
+    set u_prompt [find userprompt $router]
+    if { "$u_prompt" == "" } { set u_prompt "(Username|login|  Login):" }
+    set p_prompt [find passprompt $router]
+    if { "$p_prompt" == "" } { set p_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" }
+    }
+
+    # Login to the router
+    if {[login $router $ruser $userpswd $passwd $prompt $cyphertype]} {
+	continue
+    }
+
+    if { $do_command } {
+	if {[run_commands $prompt $command]} {
+	    continue
+	}
+    } elseif { $do_script } {
+	send "screen 0\r"
+	expect $prompt	{}
+	source $sfile
+	close
+    } else {
+	label $router
+	log_user 1
+	interact
+    }
+
+    # End of for each router
+    wait
+    sleep 0.3
+}
+exit 0