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97 lines
2.2 KiB
97 lines
2.2 KiB
#!/usr/bin/perl -w
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use warnings;
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use strict;
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use Getopt::Long;
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use LWP::Simple qw($ua getstore);
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use Net::Domain qw(hostname hostfqdn hostdomain domainname);
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use Mail::Sendmail;
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my $cert;
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my $ca = '/etc/radius/certs/ca.pem';
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my $crl;
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my $issuer;
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my $notify_crl;
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GetOptions(
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'certificate=s' => \$cert,
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'cacert=s' => \$ca,
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'crl=s' => \$crl,
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'notify-crl=s' => \$notify_crl,
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'issuer=s' => \$issuer
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);
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# Set a 5 sec timeout to fetch the CRL
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$ua->timeout(5);
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my $crl_file;
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my $crl_age;
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if ($crl){
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if ($crl =~ m{^/} && -e $crl){
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$crl_file = $crl;
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$crl_age = time - ( stat($crl) )[9];
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} elsif ($crl =~ m{^https?://}) {
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$crl_age = 9999999;
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if (-e '/run/radiusd/tls/crl.pem'){
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$crl_age = time - ( stat('/run/radiusd/tls/crl.pem') )[9];
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$crl_file = '/run/radiusd/tls/crl.pem';
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}
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if (!-e '/run/radiusd/tls/crl.pem' or $crl_age > 900){
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my $code = getstore($crl,$crl_file);
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if ($code == 200){
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$crl_age = 0;
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$crl_file = '/run/radiusd/tls/crl.pem';
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}
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}
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}
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}
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if (defined $crl and (not defined $crl_file or ($crl =~ m{https?://} and $crl_age > 7200))){
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if (defined $notify_crl){
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my %mail = (
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To => $notify_crl,
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From => 'radius@' . hostdomain(),
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Subject => 'CRL issue',
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Message => 'Authentication done with an outdated CRL'
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);
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sendmail(%mail);
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} else {
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die "CRL is too old or missing\n";
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}
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}
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my $cmd = "openssl verify -trusted $ca -purpose sslclient";
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$cmd .= " -crl_check -CRLfile $crl_file" if (defined $crl_file);
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$cmd .= " $cert";
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my $ca_check = qx($cmd);
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if ($? != 0){
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print "openssl verify command returned non zero\n";
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print $ca_check;
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exit 1;
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}
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chomp($ca_check);
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if ($ca_check !~ m/^$cert:\s+OK$/){
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print "openssl failed to verify $cert against $ca\n";
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exit 1;
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}
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my $expire_check = qx(openssl x509 -in $cert -checkend 0);
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if ($? != 0 || $expire_check !~ m/^Certificate will not expire/){
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print "certificate is expired\n";
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exit 1;
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}
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if ($issuer){
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my $issuer_check = qx(openssl x509 -in $cert -noout -issuer);
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chomp($issuer_check);
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$issuer_check =~ s/^issuer=\s*//;
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unless ($issuer_check eq $issuer){
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print "Certificate is signed by $issuer_check instead of $issuer\n";
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exit 1;
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}
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}
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exit 0;
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