fix is_ipaddr? change pc92 A/D default
authorDirk Koopman <djk@tobit.co.uk>
Wed, 22 Mar 2023 00:49:23 +0000 (00:49 +0000)
committerDirk Koopman <djk@tobit.co.uk>
Wed, 22 Mar 2023 00:49:23 +0000 (00:49 +0000)
Changes
cmd/show/badip.pl
perl/DXCIDR.pm
perl/DXProtHandle.pm
perl/DXUtil.pm

diff --git a/Changes b/Changes
index 6d25e1a7bed45a412b63b8cca21e9a8c87cce7ac..ab9c9c445c237a0b3a3aadf667f4d2e52274863f 100644 (file)
--- a/Changes
+++ b/Changes
@@ -1,3 +1,7 @@
+21Mar23=======================================================================
+1. Fix DXUtil is_ipaddr function which was accidentally included in previous
+   commit.
+2. Do not extract IP addresses to create routing info as default.
 17Mar23=======================================================================
 1. Try to nail down incoming PC92s that attempt to change the type of $myalias
    or $mycall. 
index c7b2122d472a92927d30f8aa0a10e337d7fd77b9..55fa556b8e675384e9ccd75d24439721d0ddfd16 100644 (file)
@@ -1,7 +1,7 @@
 #
-# set list of bad dx nodes
+# show (or find) list of bad dx nodes
 #
-# Copyright (c) 2021 - Dirk Koopman G1TLH
+# Copyright (c) 2021-2023 - Dirk Koopman G1TLH
 #
 #
 #
@@ -19,7 +19,6 @@ my $width = $self->width // 80;
 
 #$DB::single = 1;
 
-
 my @list = map {my $s = $_; $s =~ s|/32$||; $maxlth = length $s if length $s > $maxlth; $s =~ /^1$/?undef:$s} DXCIDR::list();
 my @l;
 $maxlth //= 20;
@@ -27,15 +26,18 @@ my $n = int ($width/($maxlth+1));
 my $format = "\%-${maxlth}s " x $n;
 chop $format;
 
+my $count = 0;
+
 foreach my $list (@list) {
        if (@in) {
-               for (@in) {
-                       if ($list =~ /$_/i) {
+               for my $in (@in) {
+                       if ($list =~ /$in/i) {
                                push @out, $list;
-                               last;
+                               ++$count;
                        }
                }
        } else {
+               ++$count;
                if (@l > $n) {
                        push @out, sprintf $format, @l;
                        @l = ();
@@ -48,5 +50,5 @@ unless (@in) {
        push @out, sprintf $format, @l;
 }
 
-push @out, "show/badip: " . scalar @out . " records found";
+push @out, "show/badip: $count records found";
 return (1, @out);
index 0a829bf1f474035eb73e42c85b381569b479d236..fae0f671140925cbe3aa9cfe7536cb663da510a5 100644 (file)
@@ -68,6 +68,7 @@ sub _read
 
 sub _load
 {
+       return unless $active;
        my $suffix = shift;
        my @in = _read($suffix);
        return 0 unless @in;
@@ -122,20 +123,30 @@ sub add
 {
        return 0 unless $active;
        my $count = 0;
+       my @out;
        
        for my $ip (@_) {
                # protect against stupid or malicious
                next unless is_ipaddr($ip);
                next if $ip =~ /^127\./;
                next if $ip =~ /^::1$/;
+               next if find($ip);
                if ($ip =~ /\./) {
-                       $ipv4->add_any($ip);
-                       ++$count;
-                       ++$count4;
+                       eval {$ipv4->add_any($ip)};
+                       if ($@) {
+                               push @out, $@;
+                       } else {
+                               ++$count;
+                               ++$count4;
+                       }
                } elsif ($ip =~ /:/) {
-                       $ipv6->add_any($ip);
-                       ++$count;
-                       ++$count6;
+                       eval {$ipv6->add_any($ip)};
+                       if ($@) {
+                               push @out, $@;
+                       } else {
+                               ++$count;
+                               ++$count6;
+                       }
                } else {
                        LogDbg('err', "DXCIDR::add non-ip address '$ip' read");
                }
@@ -165,7 +176,7 @@ sub _sort
                my @ip = split m|/|;
                push @in, [inet_pton(m|:|?AF_INET6:AF_INET, $ip[0]), @ip];
        }
-       @out = sort {$a->[1] cmp $b->[1]} @in;
+       @out = sort {$a->[0] <=> $b->[0]} @in;
        return map { "$_->[1]/$_->[2]"} @out;
 }
 
@@ -197,7 +208,12 @@ sub init
                return;
        }
 
-       import Net::CIDR::Lite;
+       eval {import Net::CIDR::Lite };
+       if ($@) {
+               LogDbg('DXProt', "DXCIDR: import Net::CIDR::Lite error $@");
+               return;
+       }
+
        $active = 1;
 
        my $fn = _fn();
index 73f139193a4279febaba885c4ba5d7965fe90d00..6f240200263758baaeb4b87a2b202fb35fdfa12e 100644 (file)
@@ -49,7 +49,7 @@ use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restim
                        $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
                        $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
                        $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
-                       $pc92filterdef $senderverify $pc11_dwell_time $pc11_extract_route $pc92_ad_enabled $pc92c_ipaddr_enabled
+                       $pc92filterdef $senderverify $pc11_dwell_time $pc61_extract_route $pc92_ad_enabled $pc92c_ipaddr_enabled
                   );
 
 $pc9x_dupe_age = 60;                   # catch loops of circular (usually) D records
@@ -63,7 +63,7 @@ $pc9x_time_tolerance;           # thing a node might send - once an hour and we
 $senderverify = 0;                             # 1 - check for forged PC11 or PC61.
                                 # 2 - if forged, dump them.
 $pc11_dwell_time = 2;                  # number of seconds to wait for a PC61 to come to substitute the PC11
-$pc11_extract_route = 1;               # generate missing  user route entry and IP address from passing PC61s
+$pc61_extract_route = 0;               # generate missing  user route entry and IP address from passing PC61s
 
 
 $pc92filterdef = bless ([
@@ -259,13 +259,15 @@ sub handle_11
                }
        }
 
-       # Populate the routing table
-       $self->populate_routing_table($pc->[7], $pc->[6], $pc->[8]);
-       my $r = Route::User::get($pc->[6]);
+       my $rug = Route::User::get($pc->[6]);
        if ($pcno == 61) {
                unless ($pc->[8] && is_ipaddr($pc->[8])) {
-                       dbg("PCPROT: ROUTE $self->{call} NO IP ADDRESS in '$line'!");   
+                       LogDbg('err', "PCPROT: ROUTE $self->{call} NO IP ADDRESS in '$line'!");
+                       return;
                }
+               if ($pc61_extract_route) {
+                       $self->populate_routing_table($pc->[7], $pc->[6], $pc->[8]);
+               } 
        }
 
        # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
@@ -316,11 +318,11 @@ sub handle_11
 
 
                        # If we have an ip address we can promote by route
-                       if ($r && $r->ip) {
+                       if ($rug && $rug->ip) {
                                $pcno = 61;
                                $pc->[0] = 'PC61';
                                my $hops = $pc->[8];
-                               $pc->[8] = $spot[14] = $r->ip;
+                               $pc->[8] = $spot[14] = $rug->ip;
                                ++$rpc11_to_61;
                                my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
                                dbg(sprintf("PROMOTED $self->{call}: ROUTE pc11 $key PROMOTED to pc61 with IP $spot[14] pc61: $pc61_rx pc11: $pc11_rx route->pc61 $rpc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
@@ -382,23 +384,29 @@ sub handle_11
        #
        # As for spots generated from non-PC92 nodes, we'll see after about  do_pc9x3h20m...
        #
-       if ($senderverify) {
+       if ($senderverify || isdbg('suspicious')) {
+               my $sv = $senderverify;
+               $sv += 2 if isdbg('suspicious');
                my $nroute = Route::Node::get($pc->[7]);
-               my $uroute = Route::Node::get($pc->[6]);
                my $local = DXChannel::get($pc->[7]);
-               
+               my $uref = DXUser::get_current($pc->[7]);
+               my $s = '';
+               my $ip = $pcno == 61 ?  $pc->[8] : '';
+
                if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
-                       my $s = '';
-                       my $ip = $pcno == 61 ?  $pc->[8] : '';
 #                      $s .= "User $pc->[6] not logged in, " unless $uroute;
                        $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
 #                      $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
-                       if ($s) {
-                               my $action = $senderverify > 1 ? ", DUMPED" : '';
-                               $s =~ s/, $//;
-                               dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
-                               return unless $senderverify < 2;
-                       }
+               }
+               # check for ip addresses on spots from non-pc9x nodes - if they have it's likely done by DXSpider nodes
+               #if ($ip && ($nroute  && !$nroute->do_pc9x || $uref && $uref->is_spider)) {
+               #       $s .= "PC$pcno has spurious ipaddr '$ip' from non-pc9x node $pc->[7]";
+               #}
+               if ($s) {
+                       my $action = $sv > 1 ? ", DUMPED" : '';
+                       $s =~ s/, $//;
+                       dbg("PCPROT: Bad Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
+                       return unless $sv < 2;
                }
        }
 
@@ -733,23 +741,23 @@ sub handle_16
                $conf = $conf eq '*';
 
                # reject this if we think it is a node already
-               my $r = Route::Node::get($call);
-               my $u = DXUser::get_current($call) unless $r;
-               if ($r || ($u && $u->is_node)) {
+               my $rng = Route::Node::get($call);
+               my $u = DXUser::get_current($call) unless $rng;
+               if ($rng || ($u && $u->is_node)) {
                        dbg("PCPROT: $call is a node") if isdbg('chanerr');
                        next;
                }
 
-               $r = Route::User::get($call);
+               my $rug = Route::User::get($call);
                my $flags = Route::here($here)|Route::conf($conf);
 
-               if ($r) {
-                       my $au = $r->addparent($parent);
-                       if ($r->flags != $flags) {
-                               $r->flags($flags);
-                               $au = $r;
+               if ($rug) {
+                       my $au = $rug->addparent($parent);
+                       if ($rug->flags != $flags) {
+                               $rug->flags($flags);
+                               $au = $rug;
                        }
-                       push @rout, $r if $h && $au;
+                       push @rout, $rug if $h && $au;
                } else {
                        my @ans = $parent->add_user($call, $flags);
                        push @rout, @ans if $h && @ans;
@@ -2450,7 +2458,7 @@ sub handle_93
                }
        }
 
-       $self->populate_routing_table($onode, $from, $ipaddr);
+       $self->populate_routing_table($onode, $from, $ipaddr) if $pc61_extract_route;
 
        # if it is routeable then then treat it like a talk
        my $ref = Route::get($to);
index b89d88ea9a89def800ffdfcba3ba39d1cc4e26aa..b01c234b80bfeea0bf1f60b25cf1679f546b8af0 100644 (file)
@@ -15,6 +15,7 @@ use File::Copy;
 use Data::Dumper;
 use Time::HiRes qw(gettimeofday tv_interval);
 use Text::Wrap;
+use Socket qw(AF_INET6 AF_INET inet_pton);
 
 use strict;
 
@@ -448,7 +449,18 @@ sub is_latlong
 # is it an ip address?
 sub is_ipaddr
 {
-    return $_[0] =~ /^(?:(?:\:\:)?\d+\.\d+\.\d+\.\d+)|(?:[0-9a-f]{1,4}\:)?(?:\:[0-9a-f]{1,4}(?:\:\:)?){1,6}$/i;
+
+       if ($_[0] =~ /:/) {
+               if (inet_pton(AF_INET6, $_[0])) {
+                       return ($_[0] =~ /([:0-9a-f]+)/);
+               }
+#              use re 'debug';
+#              return ($1) if $_[0] =~ /^(\:?(?:\:?[0-9a-f]{1,4}){1,8}?)$/i;
+#              no re 'debug';
+       } else {
+               return ($_[0] =~ /^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})$/);
+       }
+       return undef;
 }
 
 # is it a zulu time hhmmZ