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Merge branch 'master' of github.com:msimerson/qpsmtpd-dev

Browse Source 
Conflicts:
	config.sample/plugins
This commit is contained in:
Matt Simerson 2012-07-20 11:45:25 -04:00
commit fb0f934d7e
27 changed files with 471 additions and 113 deletions
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8
Changes
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@ -570,7 +570,7 @@ Next Version
no longer exists for that sender (great for harassment cases).
(John Peacock)
check_earlytalker and resolvable_fromhost - short circuit test if
earlytalker and resolvable_fromhost - short circuit test if
whitelistclient is set. (Michael Toren)
check_badmailfrom - Do not say why a given message is denied.
@ -642,7 +642,7 @@ Next Version
Add a plugin hook for the DATA command
check_earlytalker -
earlytalker -
+ optionally react to an earlytalker by denying all MAIL-FROM commands
rather than issuing a 4xx/5xx greeting and disconnecting. (Mark
Powell)
@ -728,7 +728,7 @@ Next Version
Use $ENV{QMAIL} to override /var/qmail for where to find the
control/ directory.
Enable "check_earlytalker" in the default plugins config
Enable "earlytalker" in the default plugins config
Added a milter plugin to allow use of sendmail milters
@ -792,7 +792,7 @@ Next Version
unrecognized_command hook and a count_unrecognized_commands
plugin. (Rasjid Wilcox)
check_earlytalker plugin. Deny the connection if the client talks
earlytalker plugin. Deny the connection if the client talks
before we show our SMTP banner. (From Devin Carraway)
Patch Qpsmtpd::SMTP to allow connect plugins to give DENY and

12
MANIFEST
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@ -59,7 +59,7 @@ Makefile.PL
MANIFEST This list of files
MANIFEST.SKIP
META.yml Module meta-data (added by MakeMaker)
plugins/async/check_earlytalker
plugins/async/earlytalker
plugins/async/dns_whitelist_soft
plugins/async/dnsbl
plugins/async/queue/smtp-forward
@ -77,9 +77,9 @@ plugins/auth/authdeny
plugins/badmailfrom
plugins/badmailfromto
plugins/badrcptto
plugins/check_bogus_bounce
plugins/check_earlytalker
plugins/check_loop
plugins/bogus_bounce
plugins/earlytalker
plugins/loop
plugins/connection_time
plugins/content_log
plugins/count_unrecognized_commands
@ -172,9 +172,9 @@ t/plugin_tests/auth/auth_vpopmaild
t/plugin_tests/auth/authdeny
t/plugin_tests/auth/authnull
t/plugin_tests/badmailfrom
t/plugin_tests/check_badmailfromto
t/plugin_tests/badmailfromto
t/plugin_tests/badrcptto
t/plugin_tests/check_earlytalker
t/plugin_tests/earlytalker
t/plugin_tests/count_unrecognized_commands
t/plugin_tests/dnsbl
t/plugin_tests/dspam

13
config.sample/plugins
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@ -28,19 +28,21 @@ dont_require_anglebrackets
# parse_addr_withhelo
quit_fortune
#karma penalty_box 1 reject naughty
# tls should load before count_unrecognized_commands
#tls
check_earlytalker
earlytalker
count_unrecognized_commands 4
relay
resolvable_fromhost
rhsbl
dnsbl reject naughty
dnsbl reject naughty reject_type disconnect
badmailfrom
badrcptto
helo
helo policy lenient
# sender_permitted_from
# greylisting p0f genre,windows
@ -70,13 +72,16 @@ spamassassin reject 12
# rejects mails with a SA score higher than 20 and munges the subject
# of the score is higher than 10.
#
# spamassassin reject_threshold 20 munge_subject_threshold 10
# spamassassin reject 20 munge_subject_threshold 10
# dspam must run after spamassassin for the learn_from_sa feature to work
dspam learn_from_sa 7 reject 1
# run the clamav virus checking plugin
# virus/clamav
# virus/clamdscan deny_viruses yes scan_all 1
naughty reject data
naughty

2
docs/hooks.pod
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@ -293,7 +293,7 @@ was sent, this hook is called.
B<NOTE:> This hook, like B<EHLO>, B<VRFY>, B<QUIT>, B<NOOP>, is an
endpoint of a pipelined command group (see RFC 1854) and may be used to
detect ``early talkers''. Since svn revision 758 the F<check_earlytalker>
detect ``early talkers''. Since svn revision 758 the F<earlytalker>
plugin may be configured to check at this hook for ``early talkers''.
Allowed return codes are

9
lib/Qpsmtpd/Plugin.pm
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@ -282,6 +282,15 @@ sub is_immune {
return;
};
sub adjust_karma {
my ( $self, $value ) = @_;
my $karma = $self->connection->notes('karma') || 0;
$karma += $value;
$self->connection->notes('karma', $value);
return $value;
};
sub _register_standard_hooks {
my ($plugin, $qp) = @_;

0
log/log2sql.pl → log/log2sql
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72
log/show_message Executable file
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@ -0,0 +1,72 @@
#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
my $QPDIR = get_qp_dir();
my $logfile = "$QPDIR/log/main/current";
my $is_ip = 0;
my $search = $ARGV[0];
if ( ! $search ) {
die "\nusage: $0 [ ip_address | PID ]\n\n";
};
if ( $search =~ /^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/ ) {
#print "it's an IP\n";
$is_ip++;
};
open my $LOG, '<', $logfile or die "unable to open $logfile\n";
if ( $is_ip ) { # look for the connection start message for the IP
my $ip_matches;
while ( defined (my $line = <$LOG>) ) {
next if ! $line;
my ( $tai, $pid, $mess ) = split /\s/, $line, 3;
if ( 'Connection from ' eq substr( $mess, 0, 16 ) ) {
my ( $ip ) = (split /\s+/, $mess)[-1]; # IP is last word
$ip = substr $ip, 1, -1; # trim off brackets
if ( $ip eq $search ) {
$ip_matches++;
$search = $pid;
$is_ip = 0;
};
};
};
seek $LOG, 0, 0;
die "no pid found for ip $search\n" if $is_ip;
print "showing the last of $ip_matches connnections from $ARGV[0]\n";
};
print "showing QP message PID $search\n";
while ( defined (my $line = <$LOG>) ) {
next if ! $line;
my ( $tai, $pid, $mess ) = split /\s/, $line, 3;
next if ! $pid;
print $mess if ( $pid eq $search );
};
close $LOG;
sub get_qp_dir {
foreach my $user ( qw/ qpsmtpd smtpd / ) {
my ($homedir) = (getpwnam( $user ))[7] or next;
if ( -d "$homedir/plugins" ) {
return "$homedir";
};
foreach my $s ( qw/ smtpd qpsmtpd qpsmtpd-dev / ) {
if ( -d "$homedir/$s/plugins" ) {
return "$homedir/$s";
};
};
};
if ( -d "./plugins" ) {
return Cwd::getcwd();
};
};

29
log/summarize.pl → log/summarize
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@ -3,6 +3,7 @@
use strict;
use warnings;
use Cwd;
use Data::Dumper;
use File::Tail;
@ -24,7 +25,6 @@ my %formats = (
ip => "%-15.15s",
hostname => "%-20.20s",
distance => "%5.5s",
'ident::geoip' => "%-20.20s",
'ident::p0f' => "%-10.10s",
count_unrecognized_commands => "%-5.5s",
@ -37,6 +37,10 @@ my %formats = (
check_earlytalker => "%-3.3s",
helo => "%-3.3s",
tls => "%-3.3s",
'auth::auth_vpopmail' => "%-3.3s",
'auth::auth_vpopmaild' => "%-3.3s",
'auth::auth_vpopmail_sql' => "%-3.3s",
'auth::auth_checkpassword' => "%-3.3s",
badmailfrom => "%-3.3s",
check_badmailfrom => "%-3.3s",
sender_permitted_from => "%-3.3s",
@ -69,7 +73,7 @@ while ( defined (my $line = $fh->read) ) {
next if ! $line;
my ( $type, $pid, $hook, $plugin, $message ) = parse_line( $line );
next if ! $type;
next if $type =~ /info|unknown|response/;
next if $type =~ /^(info|unknown|response|tcpserver)$/;
next if $type eq 'init'; # doesn't occur in all deployment models
if ( ! $pids{$pid} ) { # haven't seen this pid
@ -104,12 +108,18 @@ while ( defined (my $line = $fh->read) ) {
};
if ( $plugin eq 'ident::geoip' ) {
if ( length $message < 3 ) {
$formats{'ident::geoip'} = "%-3.3s";
$formats3{'ident::geoip'} = "%-3.3s";
}
else {
my ($gip, $distance) = $message =~ /(.*?),\s+([\d]+)\skm/;
if ( $distance ) {
$pids{$pid}{$plugin} = $gip;
$pids{$pid}{distance} = $distance;
};
};
};
}
elsif ( $type eq 'reject' ) { }
elsif ( $type eq 'connect' ) { }
@ -150,6 +160,7 @@ sub parse_line {
return parse_line_plugin( $line ) if substr($message, 0, 1) eq '(';
return ( 'dispatch', $pid, undef, undef, $message ) if substr($message, 0, 12) eq 'dispatching ';
return ( 'response', $pid, undef, undef, $message ) if $message =~ /^[2|3]\d\d/;
return ( 'tcpserver', $pid, undef, undef, undef ) if substr($pid, 0, 10) eq 'tcpserver:';
# lines seen about once per connection
return ( 'init', $pid, undef, undef, $message ) if substr($message, 0, 19) eq 'Accepted connection';
@ -228,12 +239,12 @@ sub print_auto_format {
if ( defined $pids{$pid}{helo_host} && $plugin =~ /helo/ ) {
$format .= " %-18.18s";
push @values, delete $pids{$pid}{helo_host};
push @values, substr( delete $pids{$pid}{helo_host}, -18, 18);
push @headers, 'HELO';
}
elsif ( defined $pids{$pid}{from} && $plugin =~ /from/ ) {
$format .= " %-20.20s";
push @values, delete $pids{$pid}{from};
push @values, substr( delete $pids{$pid}{from}, -20, 20);
push @headers, 'MAIL FROM';
}
elsif ( defined $pids{$pid}{to} && $plugin =~ /to|rcpt|recipient/ ) {
@ -276,17 +287,21 @@ sub show_symbol {
sub get_qp_dir {
foreach my $user ( qw/ qpsmtpd smtpd / ) {
my ($homedir) = (getpwnam( $user ))[7] or next;
if ( -d "$homedir/plugins" ) {
return "$homedir";
};
if ( -d "$homedir/smtpd/plugins" ) {
return "$homedir/smtpd";
foreach my $s ( qw/ smtpd qpsmtpd qpsmtpd-dev / ) {
if ( -d "$homedir/$s/plugins" ) {
return "$homedir/$s";
};
};
};
if ( -d "./plugins" ) {
return Cwd::getcwd();
};
};
sub populate_plugins_from_registry {

22
log/watch.pl → log/watch
View File

@ -3,11 +3,12 @@
use strict;
use warnings;
use Cwd;
use Data::Dumper;
use File::Tail;
my $dir = find_qp_log_dir() or die "unable to find QP home dir";
my $file = "$dir/main/current";
my $dir = get_qp_dir() or die "unable to find QP home dir";
my $file = "$dir/log/main/current";
my $fh = File::Tail->new(name=>$file, interval=>1, maxinterval=>1, debug =>1, tail =>100 );
while ( defined (my $line = $fh->read) ) {
@ -15,16 +16,21 @@ while ( defined (my $line = $fh->read) ) {
print $line;
};
sub find_qp_log_dir {
sub get_qp_dir {
foreach my $user ( qw/ qpsmtpd smtpd / ) {
my ($homedir) = (getpwnam( $user ))[7] or next;
if ( -d "$homedir/log" ) {
return "$homedir/log";
if ( -d "$homedir/plugins" ) {
return "$homedir";
};
if ( -d "$homedir/smtpd/log" ) {
return "$homedir/smtpd/log";
foreach my $s ( qw/ smtpd qpsmtpd qpsmtpd-dev / ) {
if ( -d "$homedir/$s/plugins" ) {
return "$homedir/$s";
};
};
};
if ( -d "./plugins" ) {
return Cwd::getcwd();
};
};

2
plugins/async/check_earlytalker → plugins/async/earlytalker
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@ -2,7 +2,7 @@
=head1 NAME
check_earlytalker - Check that the client doesn't talk before we send the SMTP banner
earlytalker - Check that the client doesn't talk before we send the SMTP banner
=head1 DESCRIPTION

2
plugins/badmailfrom
View File

@ -85,7 +85,7 @@ sub hook_mail {
next unless $bad;
next unless $self->is_match( $from, $bad, $host );
$reason ||= "Your envelope sender is in my badmailfrom list";
$self->connection->notes('karma', ($self->connection->notes('karma') || 0) - 1);
$self->adjust_karma( -1 );
return $self->get_reject( $reason );
}

2
plugins/check_bogus_bounce → plugins/bogus_bounce
View File

@ -2,7 +2,7 @@
=head1 NAME
check_bogus_bounce - Check that a bounce message isn't bogus
bogus_bounce - Check that a bounce message isn't bogus
=head1 DESCRIPTION

11
plugins/dspam
View File

@ -216,7 +216,7 @@ sub register {
$self->{_args}{dspam_bin} ||= '/usr/local/bin/dspam';
if ( ! -x $self->{_args}{dspam_bin} ) {
$self->log(LOGERROR, "dspam not found: ");
$self->log(LOGERROR, "dspam CLI binary not found: install dspam and/or set dspam_bin");
return DECLINED;
};
@ -478,9 +478,7 @@ sub reject_agree {
if ( $d->{class} eq 'Spam' ) {
if ( $sa->{is_spam} eq 'Yes' ) {
if ( defined $self->connection->notes('karma') ) {
$self->connection->notes('karma', $self->connection->notes('karma') - 2);
};
$self->adjust_karma( -2 );
$self->log(LOGINFO, "fail, agree, $status");
my $reject = $self->get_reject_type();
return ($reject, 'we agree, no spam please');
@ -493,9 +491,7 @@ sub reject_agree {
if ( $d->{class} eq 'Innocent' ) {
if ( $sa->{is_spam} eq 'No' ) {
if ( $d->{confidence} > .9 ) {
if ( defined $self->connection->notes('karma') ) {
$self->connection->notes('karma', ( $self->connection->notes('karma') + 2) );
};
$self->adjust_karma( 2 );
};
$self->log(LOGINFO, "pass, agree, $status");
return DECLINED;
@ -591,6 +587,7 @@ sub autolearn {
defined $self->{_args}{autolearn} or return;
# only train once.
$self->autolearn_naughty( $response, $transaction ) and return;
$self->autolearn_karma( $response, $transaction ) and return;
$self->autolearn_spamassassin( $response, $transaction ) and return;

9
plugins/check_earlytalker → plugins/earlytalker
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@ -2,7 +2,7 @@
=head1 NAME
check_earlytalker - Check that the client doesn't talk before we send the SMTP banner
earlytalker - Check that the client doesn't talk before we send the SMTP banner
=head1 DESCRIPTION
@ -30,7 +30,7 @@ must also be allowed for.
Do we reject/deny connections to early talkers?
check_earlytalker reject [ 0 | 1 ]
earlytalker reject [ 0 | 1 ]
Default: I<reject 1>
@ -48,7 +48,7 @@ issued a deny or denysoft (depending on the value of I<reject_type>). The defaul
is to react at the SMTP greeting stage by issuing the apropriate response code
and terminating the SMTP connection.
check_earlytalker defer-reject [ 0 | 1 ]
earlytalker defer-reject [ 0 | 1 ]
=head2 check-at [ CONNECT | DATA ]
@ -173,7 +173,7 @@ sub connect_handler {
};
$self->connection->notes('earlytalker', 1);
$self->connection->notes('karma', -1);
$self->adjust_karma( -1 );
return DECLINED;
}
@ -205,6 +205,7 @@ sub log_and_deny {
my $ip = $self->qp->connection->remote_ip || 'remote host';
$self->connection->notes('earlytalker', 1);
$self->adjust_karma( -1 );
my $log_mess = "$ip started talking before we said hello";
my $smtp_msg = 'Connecting host started transmitting before SMTP greeting';

25
plugins/helo
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@ -106,25 +106,25 @@ Default: lenient
=head3 lenient
Reject failures of the following tests: is_in_badhelo, invalid_localhost, and
is_forged_literal.
Reject failures of the following tests: is_in_badhelo, invalid_localhost,
is_forged_literal, and is_plain_ip.
This setting is lenient enough not to cause problems for your Windows users.
It is comparable to running check_spamhelo, but with the addition of regexp
support and the prevention of forged localhost and forged IP literals.
support, the prevention of forged localhost, forged IP literals, and plain
IPs.
=head3 rfc
Per RFC 2821, the HELO hostname is the FQDN of the sending server or an
address literal. When I<policy rfc> is selected, all the lenient checks and
the following are enforced: is_plain_ip, is_not_fqdn, no_forward_dns, and
no_reverse_dns.
the following are enforced: is_not_fqdn, no_forward_dns, and no_reverse_dns.
If you have Windows users that send mail via your server, do not choose
I<policy rfc> without I<reject naughty> and the B<naughty> plugin. Windows
users often send unqualified HELO names and will have trouble sending mail.
<Naughty> can defer the rejection, and if the user subsequently authenticates,
the rejection will be cancelled.
I<policy rfc> without settings I<reject naughty> and using the B<naughty>
plugin. Windows PCs often send unqualified HELO names and will have trouble
sending mail. The B<naughty> plugin defers the rejection, and if the user
subsequently authenticates, the rejection is be cancelled.
=head3 strict
@ -259,11 +259,10 @@ sub populate_tests {
my $self = shift;
my $policy = $self->{_args}{policy};
@{ $self->{_helo_tests} } = qw/ is_in_badhelo invalid_localhost is_forged_literal /;
@{ $self->{_helo_tests} } = qw/ is_in_badhelo invalid_localhost is_forged_literal is_plain_ip /;
if ( $policy eq 'rfc' || $policy eq 'strict' ) {
push @{ $self->{_helo_tests} }, qw/ is_plain_ip is_not_fqdn
no_forward_dns no_reverse_dns /;
push @{ $self->{_helo_tests} }, qw/ is_not_fqdn no_forward_dns no_reverse_dns /;
};
if ( $policy eq 'strict' ) {
@ -431,7 +430,7 @@ sub no_matching_dns {
if ( $self->connection->notes('helo_forward_match') &&
$self->connection->notes('helo_reverse_match') ) {
$self->log( LOGDEBUG, "foward and reverse match" );
# TODO: consider adding some karma here
$self->adjust_karma( 1 ); # whoppee, a match!
return;
};

26
plugins/karma
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@ -177,14 +177,14 @@ those senders haven't sent us any ham. As such, it's much safer to use.
This plugin sets the connection note I<karma_history>. Your plugin can
use the senders karma to be more gracious or rude to senders. The value of
I<karma_history> is the number the nice connections minus naughty
I<karma_history> is the number of nice connections minus naughty
ones. The higher the number, the better you should treat the sender.
When I<reject naughty> is set and a naughty sender is encountered, most
plugins should skip processing. However, if you wish to toy with spammers by
teergrubing, extending banner delays, limiting connections, limiting
recipients, random disconnects, handoffs to rblsmtpd, and other fun tricks,
then connections with the I<naughty> note set are for you!
To alter a connections karma based on its behavior, do this:
$self->adjust_karma( -1 ); # lower karma (naughty)
$self->adjust_karma( 1 ); # raise karma (good)
=head1 EFFECTIVENESS
@ -194,7 +194,7 @@ connections.
This plugins effectiveness results from the propensity of naughty senders
to be repeat offenders. Limiting them to a single offense per day(s) greatly
reduces the number of useless tokens miscreants add to our Bayes databases.
reduces the resources they can waste.
Of the connections that had previously passed all other checks and were caught
only by spamassassin and/or dspam, B<karma> rejected 31 percent. Since
@ -207,7 +207,7 @@ Connection summaries are stored in a database. The database key is the int
form of the remote IP. The value is a : delimited list containing a penalty
box start time (if the server is/was on timeout) and the count of naughty,
nice, and total connections. The database can be listed and searched with the
karma_dump.pl script.
karma_tool script.
=head1 BUGS & LIMITATIONS
@ -383,7 +383,7 @@ sub get_db_tie {
my ( $self, $db, $lock ) = @_;
tie( my %db, 'AnyDBM_File', $db, O_CREAT|O_RDWR, 0600) or do {
$self->log(LOGCRIT, "tie to database $db failed: $!");
$self->log(LOGCRIT, "error, tie to database $db failed: $!");
close $lock;
return;
};
@ -416,12 +416,12 @@ sub get_db_lock {
# Check denysoft db
open( my $lock, ">$db.lock" ) or do {
$self->log(LOGCRIT, "opening lockfile failed: $!");
$self->log(LOGCRIT, "error, opening lockfile failed: $!");
return;
};
flock( $lock, LOCK_EX ) or do {
$self->log(LOGCRIT, "flock of lockfile failed: $!");
$self->log(LOGCRIT, "error, flock of lockfile failed: $!");
close $lock;
return;
};
@ -441,12 +441,12 @@ sub get_db_lock_nfs {
blocking_timeout => 10, # 10 sec
stale_lock_timeout => 30 * 60, # 30 min
} or do {
$self->log(LOGCRIT, "nfs lockfile failed: $!");
$self->log(LOGCRIT, "error, nfs lockfile failed: $!");
return;
};
open( my $lock, "+<$db.lock") or do {
$self->log(LOGCRIT, "opening nfs lockfile failed: $!");
$self->log(LOGCRIT, "error, opening nfs lockfile failed: $!");
return;
};

2
plugins/check_loop → plugins/loop
View File

@ -2,7 +2,7 @@
=head1 NAME
check_loop - Detect mail loops
loop - Detect mail loops
=head1 DESCRIPTION

6
plugins/qmail_deliverable
View File

@ -77,7 +77,7 @@ sub register {
$self->log(LOGWARN, "Odd number of arguments, using default config");
} else {
my %args = @args;
if ($args{server} =~ /^smtproutes:/) {
if ($args{server} && $args{server} =~ /^smtproutes:/) {
my ($fallback, $port) = $args{server} =~ /:(?:(.*?):?)(\d+)/;
@ -138,9 +138,7 @@ sub rcpt_handler {
return DECLINED if $rv;
if ( defined $self->connection->notes('karma') ) {
$self->connection->notes('karma', ($self->connection->notes('karma') - 1));
};
$self->adjust_karma( -1 );
return (DENY, "fail, no mailbox by that name. qd (#5.1.1)" );
}

19
plugins/registry.txt
View File

@ -9,7 +9,7 @@
3 ident::p0f p0f p0f
5 karma krm karma
6 dnsbl dbl dnsbl
7 relay rly relay
7 relay rly relay check_relay,check_norelay,relay_only
9 earlytalker ear early check_earlytalker
15 helo hlo helo check_spamhelo
16 tls tls tls
@ -22,13 +22,14 @@
#
# Authentication
#
30 auth::vpopmail_sql aut vpsql
31 auth::vpopmaild vpd vpopd
32 auth::vpopmail vpo vpop
33 auth::checkpasswd ckp chkpw
34 auth::cvs_unix_local cvs cvsul
35 auth::flat_file flt aflat
36 auth::ldap_bind ldp aldap
30 auth::auth_vpopmail_sql aut vpsql
31 auth::auth_vpopmaild vpd vpopd
32 auth::auth_vpopmail vpo vpop
33 auth::auth_checkpasswd ckp chkpw
34 auth::auth_cvs_unix_local cvs cvsul
35 auth::auth_flat_file flt aflat
36 auth::auth_ldap_bind ldp aldap
37 auth::authdeny dny adeny
#
# Sender / From
#
@ -63,7 +64,7 @@
70 virus::aveclient ave avirs
71 virus::bitdefender bit bitdf
72 virus::clamav cav clamv
73 virus::clamdscan cad clamd
73 virus::clamdscan clm clamd
74 virus::hbedv hbv hbedv
75 virus::kavscanner kav kavsc
76 virus::klez_filter klz vklez

4
plugins/resolvable_fromhost
View File

@ -68,6 +68,7 @@ Default: temp (temporary, aka soft, aka 4xx).
use strict;
use warnings;
use lib 'lib';
use Qpsmtpd::Constants;
use Qpsmtpd::DSN;
use Qpsmtpd::TcpServer;
@ -114,13 +115,14 @@ sub hook_mail {
};
my $result = $transaction->notes('resolvable_fromhost') or do {
$self->log(LOGINFO, 'error, missing result' );
return Qpsmtpd::DSN->temp_resolver_failed( $self->get_reject_type(), '' );
};
return DECLINED if $result =~ /^(?:a|ip|mx)$/; # success
return DECLINED if $result =~ /^(?:whitelist|null|naughty)$/; # immunity
$self->log(LOGINFO, $result ); # log error
$self->log(LOGINFO, "fail, $result" ); # log error
return Qpsmtpd::DSN->addr_bad_from_system( $self->get_reject_type(),
"FQDN required in the envelope sender");

56
plugins/sender_permitted_from
View File

@ -143,28 +143,18 @@ sub mail_handler {
};
# SPF result codes: pass fail softfail neutral none error permerror temperror
return $self->handle_code_none($reject, $why) if $code eq 'none';
return $self->handle_code_fail($reject, $why) if $code eq 'fail';
return $self->handle_code_softfail($reject, $why) if $code eq 'softfail';
if ( $code eq 'pass' ) {
$self->log(LOGINFO, "pass, $code: $why" );
return (DECLINED);
}
elsif ( $code eq 'fail' ) {
$self->log(LOGINFO, "fail, $why" );
return (DENY, "SPF - forgery: $why") if $reject >= 3;
return (DENYSOFT, "SPF - $code: $why") if $reject >= 2;
}
elsif ( $code eq 'softfail' ) {
$self->log(LOGINFO, "fail, $why" );
return (DENY, "SPF - $code: $why") if $reject >= 4;
return (DENYSOFT, "SPF - $code: $why") if $reject >= 3;
}
elsif ( $code eq 'neutral' ) {
$self->log(LOGINFO, "fail, $code, $why" );
return (DENY, "SPF - $code: $why") if $reject >= 5;
}
elsif ( $code eq 'none' ) {
$self->log(LOGINFO, "fail, $code, $why" );
return (DENY, "SPF - $code: $why") if $reject >= 6;
}
elsif ( $code eq 'error' ) {
$self->log(LOGINFO, "fail, $code, $why" );
return (DENY, "SPF - $code: $why") if $reject >= 6;
@ -184,6 +174,44 @@ sub mail_handler {
return (DECLINED);
}
sub handle_code_none {
my ($self, $reject, $why ) = @_;
if ( $reject >= 6 ) {
$self->log(LOGINFO, "fail, none, $why" );
return (DENY, "SPF - none: $why");
};
$self->log(LOGINFO, "pass, none, $why" );
return DECLINED;
};
sub handle_code_fail {
my ($self, $reject, $why ) = @_;
if ( $reject >= 2 ) {
$self->log(LOGINFO, "fail, $why" );
return (DENY, "SPF - forgery: $why") if $reject >= 3;
return (DENYSOFT, "SPF - fail: $why")
};
$self->log(LOGINFO, "pass, fail tolerated, $why" );
return DECLINED;
};
sub handle_code_softfail {
my ($self, $reject, $why ) = @_;
if ( $reject >= 3 ) {
$self->log(LOGINFO, "fail, soft, $why" );
return (DENY, "SPF - fail: $why") if $reject >= 4;
return (DENYSOFT, "SPF - fail: $why") if $reject >= 3;
};
$self->log(LOGINFO, "pass, softfail tolerated, $why" );
return DECLINED;
};
sub data_post_handler {
my ($self, $transaction) = @_;

11
plugins/spamassassin
View File

@ -369,11 +369,12 @@ sub reject {
my ($self, $transaction) = @_;
my $sa_results = $self->get_spam_results($transaction) or do {
$self->log(LOGNOTICE, "skip, no results");
$self->log(LOGNOTICE, "error, no results");
return DECLINED;
};
my $score = $sa_results->{score} or do {
$self->log(LOGERROR, "skip, error getting score");
my $score = $sa_results->{score};
if ( ! defined $score ) {
$self->log(LOGERROR, "error, error getting score");
return DECLINED;
};
@ -385,7 +386,7 @@ sub reject {
};
my $reject = $self->{_args}{reject} or do {
$self->log(LOGERROR, "skip, reject disabled ($status, $learn)");
$self->log(LOGERROR, "pass, reject disabled ($status, $learn)");
return DECLINED;
};
@ -400,7 +401,7 @@ sub reject {
}
}
$self->connection->notes('karma', $self->connection->notes('karma') - 1);
$self->adjust_karma( -1 );
# default of media_unsupported is DENY, so just change the message
$self->log(LOGINFO, "fail, $status, > $reject, $learn");
return ($self->get_reject_type(), "spam score exceeded threshold");

2
plugins/virus/clamdscan
View File

@ -140,7 +140,7 @@ sub data_post_handler {
my $filename = $self->get_filename( $transaction ) or return DECLINED;
return (DECLINED) if $self->is_immune();
#return (DECLINED) if $self->is_immune();
return (DECLINED) if $self->is_too_big( $transaction );
return (DECLINED) if $self->is_not_multipart( $transaction );

223
plugins/whitelist Normal file
View File

@ -0,0 +1,223 @@
=head1 NAME
whitelist - whitelist override for other qpsmtpd plugins
=head1 DESCRIPTION
The B<whitelist> plugin allows selected hosts or senders or recipients
to be whitelisted as exceptions to later plugin processing. It is a more
conservative variant of Devin Carraway's 'whitelist' plugin.
=head1 CONFIGURATION
To enable the plugin, add it to the qpsmtpd/config/plugins file as usual.
It should precede any plugins you might wish to whitelist for.
Several configuration files are supported, corresponding to different
parts of the SMTP conversation:
=over 4
=item whitelisthosts
Any IP address (or start-anchored fragment thereof) listed in the
whitelisthosts file is exempted from any further validation during
'connect', and can be selectively exempted at other stages by
plugins testing for a 'whitelisthost' connection note.
Similarly, if the environment variable $WHITELISTCLIENT is set
(which can be done by tcpserver), the connection will be exempt from
further 'connect' validation, and the host can be selectively
exempted by other plugins testing for a 'whitelistclient' connection
note.
=item whitelisthelo
Any host that issues a HELO matching an entry in whitelisthelo will
be exempted from further validation at the 'helo' stage. Subsequent
plugins can test for a 'whitelisthelo' connection note. Note that
this does not actually amount to an authentication in any meaningful
sense.
=item whitelistsenders
If the envelope sender of a mail (that which is sent as the MAIL FROM)
matches an entry in whitelistsenders, or if the hostname component
matches, the mail will be exempted from any further validation within
the 'mail' stage. Subsequent plugins can test for this exemption as a
'whitelistsender' transaction note.
=item whitelistrcpt
If any recipient of a mail (that sent as the RCPT TO) matches an
entry from whitelistrcpt, or if the hostname component matches, no
further validation will be required for this recipient. Subsequent
plugins can test for this exemption using a 'whitelistrcpt'
transaction note, which holds the count of whitelisted recipients.
=back
whitelist_soft also supports per-recipient whitelisting when using
the per_user_config plugin. To enable the per-recipient behaviour
(delaying all whitelisting until the rcpt part of the smtp
conversation, and using per-recipient whitelist configs, if
available), pass a true 'per_recipient' argument in the
config/plugins invocation i.e.
whitelist_soft per_recipient 1
By default global and per-recipient whitelists are merged; to turn off
the merge behaviour pass a false 'merge' argument in the config/plugins
invocation i.e.
whitelist_soft per_recipient 1 merge 0
=head1 BUGS
Whitelist lookups are all O(n) linear scans of configuration files, even
though they're all associative lookups. Something should be done about
this when CDB/DB/GDBM configs are supported.
=head1 AUTHOR
Based on the 'whitelist' plugin by Devin Carraway <qpsmtpd@devin.com>.
Modified by Gavin Carr <gavin@openfusion.com.au> to not inherit
whitelisting across hooks, but use per-hook whitelist notes instead.
This is a more conservative approach e.g. whitelisting an IP will not
automatically allow relaying from that IP.
=cut
my $VERSION = 0.02;
# Default is to merge whitelists in per_recipient mode
my %MERGE = (merge => 1);
sub register {
my ($self, $qp, %arg) = @_;
$self->{_per_recipient} = 1 if $arg{per_recipient};
$MERGE{merge} = $arg{merge} if defined $arg{merge};
# Normal mode - whitelist per hook
unless ($arg{per_recipient}) {
$self->register_hook("connect", "check_host");
$self->register_hook("helo", "check_helo");
$self->register_hook("ehlo", "check_helo");
$self->register_hook("mail", "check_sender");
$self->register_hook("rcpt", "check_rcpt");
}
# Per recipient mode - defer all whitelisting to rcpt hook
else {
$self->register_hook("rcpt", "check_host");
$self->register_hook("helo", "helo_helper");
$self->register_hook("ehlo", "helo_helper");
$self->register_hook("rcpt", "check_helo");
$self->register_hook("rcpt", "check_sender");
$self->register_hook("rcpt", "check_rcpt");
}
}
sub check_host {
my ($self, $transaction, $rcpt) = @_;
my $ip = $self->qp->connection->remote_ip || return (DECLINED);
# From tcpserver
if (exists $ENV{WHITELISTCLIENT}) {
$self->qp->connection->notes('whitelistclient', 1);
$self->log(2, "host $ip is a whitelisted client");
return OK;
}
my $config_arg = $self->{_per_recipient} ? {rcpt => $rcpt, %MERGE} : {};
for my $h ($self->qp->config('whitelisthosts', $config_arg)) {
if ($h eq $ip or $ip =~ /^\Q$h\E/) {
$self->qp->connection->notes('whitelisthost', 1);
$self->log(2, "host $ip is a whitelisted host");
return OK;
}
}
return DECLINED;
}
sub helo_helper {
my ($self, $transaction, $helo) = @_;
$self->{_whitelist_soft_helo} = $helo;
return DECLINED;
}
sub check_helo {
my ($self, $transaction, $helo) = @_;
# If per_recipient will be rcpt hook, and helo actually rcpt
my $config_arg = {};
if ($self->{_per_recipient}) {
$config_arg = {rcpt => $helo, %MERGE};
$helo = $self->{_whitelist_soft_helo};
}
for my $h ($self->qp->config('whitelisthelo', $config_arg)) {
if ($helo and lc $h eq lc $helo) {
$self->qp->connection->notes('whitelisthelo', 1);
$self->log(2, "helo host $helo in whitelisthelo");
return OK;
}
}
return DECLINED;
}
sub check_sender {
my ($self, $transaction, $sender) = @_;
# If per_recipient will be rcpt hook, and sender actually rcpt
my $config_arg = {};
if ($self->{_per_recipient}) {
$config_arg = {rcpt => $sender, %MERGE};
$sender = $transaction->sender;
}
return DECLINED if $sender->format eq '<>';
my $addr = lc $sender->address or return DECLINED;
my $host = lc $sender->host or return DECLINED;
for my $h ($self->qp->config('whitelistsenders', $config_arg)) {
next unless $h;
$h = lc $h;
if ($addr eq $h or $host eq $h) {
$transaction->notes('whitelistsender', 1);
$self->log(2, "envelope sender $addr in whitelistsenders");
return OK;
}
}
return DECLINED;
}
sub check_rcpt {
my ($self, $transaction, $rcpt) = @_;
my $addr = lc $rcpt->address or return DECLINED;
my $host = lc $rcpt->host or return DECLINED;
my $config_arg = $self->{_per_recipient} ? {rcpt => $rcpt, %MERGE} : {};
for my $h ($self->qp->config('whitelistrcpt', $config_arg)) {
next unless $h;
$h = lc $h;
if ($addr eq $h or $host eq $h) {
my $note = $transaction->notes('whitelistrcpt');
$transaction->notes('whitelistrcpt', ++$note);
$self->log(2, "recipient $addr in whitelistrcpt");
return OK;
}
}
return DECLINED;
}

5
run
View File

@ -11,6 +11,7 @@ PERL=/usr/bin/perl
QMAILDUID=`id -u $QPUSER`
NOFILESGID=`id -g $QPUSER`
IP=`head -1 config/IP`
PORT=25
LANG=C
# Remove the comments between the <start> and <end> tags to choose a
@ -19,7 +20,7 @@ LANG=C
# <start tcpserver>
exec $BIN/softlimit -m $MAXRAM \
$BIN/tcpserver -c 10 -v -R -p \
-u $QMAILDUID -g $NOFILESGID $IP smtp \
-u $QMAILDUID -g $NOFILESGID $IP $PORT \
./qpsmtpd 2>&1
# <end tcpserver>
@ -30,7 +31,7 @@ exec $BIN/softlimit -m $MAXRAM \
# exec $BIN/softlimit -m $MAXRAM \
# $PERL -T ./qpsmtpd-forkserver \
# --listen-address $IP \
# --port 25 \
# --port $PORT \
# --limit-connections 15 \
# --max-from-ip 5 \
# --user $QPUSER

2
t/config/plugins
View File

@ -30,7 +30,7 @@ parse_addr_withhelo
quit_fortune
# tls should load before count_unrecognized_commands
#tls
check_earlytalker
earlytalker
count_unrecognized_commands 4
relay