All your assumptions were correct and your advice spot on, Thank You!!!
In the sub-routine "cisco_ssh_login" I move a couple of declarations up to to make them visible outside of the if statements
and wrapped the call to "ssh->login()" method with eval,
added a check on "$@" to force exit and return a value I could use to check the subroutine call and launch the telnet routine.
sub cisco_ssh_login {
my $login_output = "";
my $enable = "";
eval {
$login_output = $ssh->login();
if ($login_output !~ /username|password|passcode|#|>/) {
die "Login has failed.
Login output was $login_output";
}
};
if( $@ =~ m/SSHProcessError The ssh process was terminated/ ) {
# Login Failed Leave Sub Routine with value "ssh_failed"
return "ssh_failed";
}
....
}
....
$login_result = &cisco_ssh_login();
if ( $login_result eq "ssh_failed") { $login_result = &cisco_telnet_l
+ogin(); };
Thanks for taking the time to help a newbie out.
For those Struggling Like I was here is the working code I used.
I will point out it took awhile to get here and the learning is important as is the struggle.
#!/usr/bin/perl
use warnings;
use strict;
use Net::Telnet();
use Net::SSH::Expect;
open(OUTPUT, ">>output.log");
my $host = "10.10.10.10";
my $username = "myuser";
my $passwd = "mypass";
my $enpasswd = "myenpass";
my @output = "";
my @newarray = "";
my $Prompt = "";
my $tempstring = "";
my $msg = "";
my $Chassis = "";
my $access_method = "";
my $login_result = "";
my $ssh = Net::SSH::Expect->new (
host => $host,
password => $passwd,
user => $username,
raw_pty => 1,
debug => 1,
timeout => 5
);
my $telnet = new Net::Telnet (
Timeout => 20,
Errmode => 'die',
Prompt => "/#|login:|username:|>/i"
);
sub cisco_telnet_login {
$telnet->open($host);
$telnet->login($username, $passwd);
$telnet->print("term length 0");
my @output = $telnet->waitfor('/(.*[#>])/i'); #create an array "out
+put" so we can grab the real prompt from it
my $device_prompt = $output[$#output]; # now take the array "output
+" and grab the last position in the array using "$#"
$Prompt = $output[$#output];
$access_method = "cisco_telnet";
$tempstring = shift(@output);
if ( $tempstring =~ m/#/ ) {
$telnet->print("term length 0");
@output = $telnet->waitfor('/(.*[\$%#>]) $/i'); #create an array
+ "output" so we can grab the real prompt from it
$device_prompt = $output[$#output]; #
}
if ( $tempstring =~ m/>/ ) {
$telnet->print("enable");
@output = $telnet->waitfor('/password:|passcode:/i');
$telnet->print("$enpasswd");
@output = $telnet->waitfor('/(.*[\$%#>]) $/i');
$telnet->print("term length 0");
@output = $telnet->waitfor('/(.*[\$%#>]) $/i'); #create an array
+ "output" so we can grab the real prompt from it
$device_prompt = $output[$#output]; #
}
print @output;
print($Prompt);
@output = ""; # Reset array @output - this is not actually empty it
+ contain on item and it is empty
# print("\n");
# $telnet->prompt(/$Prompt/);
$telnet->errmode("die");
# print(@output);
};
sub cisco_ssh_login {
my $login_output = "";
my $enable = "";
eval {
$login_output = $ssh->login();
if ($login_output !~ /username|password|passcode|#|>/) {
die "Login has failed.
Login output was $login_output";
}
};
if( $@ =~ m/SSHProcessError The ssh process was terminated/ ) {
# Login Failed Leave Sub Routine with value "ssh_failed"
return "ssh_failed";
}
# my $login_output = $ssh->login();
if( $login_output !~ /\#\s*\z/ ) {
#### print "\nInside Not Like Section\n";
# print"\n$@\n\n"; # if you see other failure uncomment and add
+if stmt with value, similar to if stmt below
$enable = $ssh->exec( "enable" );
#### if we have a password prompt after enable, send the passwor
+d
if( $enable =~ /[Pp]assword:/ ) {
my $enablepass = $ssh->exec( $enpasswd );
# did the enable password fail?
if( $enablepass !~ /\#\s*\z/ ) {
$msg = "Enable password failed.";
$ssh->close( );
return( 249, $msg );
}
}
# we didn't require a password, but did we get the enable prompt
+?
elsif( $enable !~ /\#\s*\z/ ) {
$msg = "Enable mode prompt not found.";
$ssh->close();
return( 249, $msg );
}
}
$access_method = "cisco_ssh";
if ($login_output =~ /Nexus/) {
print"\nFound Device is Nexus During Login\n\n";
}
#### Un-Comment next Line to see Login
#print "$login_output\n";
@output = $ssh->exec("\n");
$tempstring = shift(@output);
@newarray = split(/\r\n/,$tempstring); # $tempstring may only have
+new lines "\n", could be why I did not get prompt
$Prompt = $newarray[1];
$Prompt =~ s/#//;
$Prompt =~ s/\r//;
$Prompt =~ s/\n//;
print"\nPrompt Value: ",$Prompt,"\n\n";
};
### Nexus System Info Gathers info from "show version" and
sub nexus_sys_info {
#### Issue Command it either Telnet or SSH Session, depending on wh
+ich was estabished
if ( $access_method eq "cisco_telnet" ) {
@output = $telnet->cmd("show ver");
@newarray = @output;
}
if ( $access_method eq "cisco_ssh" ) {
$ssh->timeout( 4 );
@output = $ssh->exec("show ver");
$tempstring = shift(@output);
@newarray = split(/\r\n/,$tempstring);
}
#### Issue Command it either Telnet or SSH Session, depending on wh
+ich was estabished
#### Iterate through output (@newarray) array Line by Line
my $counter = 0;
$Chassis = "";
foreach my $line(@newarray) {
chomp($line);
# print "\n$line\n";
$counter++;
if($line =~ m/cisco ([^\s]*) Chassis/) {
$Chassis = $1;
print "\nChassis: ",$Chassis,"\n\n";
print OUTPUT "Chassis:\t$Chassis\n";
}
#### adding for testing before IOS version is in place
if($line =~ m/cisco\s+([^\s]*)\s+([^\s]*)\s+processor/i) {
$Chassis = $1;
print "\nChassis: ",$Chassis,"\n\n";
print OUTPUT "Chassis:\t$Chassis\n";
}
}
$ssh->timeout( 2 );
};
$login_result = &cisco_ssh_login();
if ( $login_result eq "ssh_failed") { $login_result = &cisco_telnet_l
+ogin(); };
print "\nReturned from Login\n\n";
if ( $access_method eq "cisco_telnet" ) {
# @output = $telnet->cmd("term length 0"); # this is commented out
+because it was set in cisco_telnet_login
@output = $telnet->cmd("term width 512");
}
if ( $access_method eq "cisco_ssh" ) {
$ssh->timeout( 2 );
$ssh->exec("terminal width 512");
$ssh->exec("terminal length 0");
}
my $system_result = &nexus_sys_info();
|