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TcpServerUtils.pm: wheeze compatibility mode (Forum #126290)

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git-svn-id: https://svn.fhem.de/fhem/trunk@25866 2b470e98-0d58-463d-a4d8-8e2adae1ed80
This commit is contained in:
rudolfkoenig 2022-03-21 09:01:16 +00:00
parent 0cba21bf4e
commit 25451eb095
1 changed files with 27 additions and 17 deletions
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44
fhem/FHEM/TcpServerUtils.pm
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@ -7,6 +7,26 @@ use warnings;
use IO::Socket;
use vars qw($SSL_ERROR);
my ($joinGroup, $leaveGroup, $multiCastLoop, $addMembership, $dropMembership);
# Perl 5.16 / wheezy compatibility mode / #126290
eval "Socket::IPV6_JOIN_GROUP";
if($@) {
$joinGroup = 20;
$leaveGroup = 21;
$multiCastLoop = 34;
$addMembership = 35;
$dropMembership = 36;
} else {
$joinGroup = eval "Socket::IPV6_JOIN_GROUP";
$leaveGroup = eval "Socket::IPV6_LEAVE_GROUP";
$multiCastLoop = eval "Socket::IP_MULTICAST_LOOP";
$addMembership = eval "Socket::IP_ADD_MEMBERSHIP";
$dropMembership = eval "Socket::IP_DROP_MEMBERSHIP";
}
sub
TcpServer_Open($$$;$)
{
@ -71,8 +91,7 @@ TcpServer_SetLoopbackMode($$)
my $old;
if( !$hash->{IPV6} && $sock->sockdomain() == AF_INET ) {
my $packed = getsockopt($sock, Socket::IPPROTO_IP,
Socket::IP_MULTICAST_LOOP);
my $packed = getsockopt($sock, Socket::IPPROTO_IP, $multiCastLoop);
if( !$packed ) {
Log3 $name, 1, "$name: failed to get loopback mode: $!";
return undef;
@ -80,7 +99,7 @@ TcpServer_SetLoopbackMode($$)
$old = unpack("I", $packed);
if( !setsockopt($sock, Socket::IPPROTO_IP,
Socket::IP_MULTICAST_LOOP, pack("I", $loopback ) ) ) {
$multiCastLoop, pack("I", $loopback ) ) ) {
Log3 $name, 1, "$name: could not set loopback mode: $!";
return undef;
}
@ -123,17 +142,13 @@ TcpServer_MCastAdd($$)
# add multicast address
if(!$hash->{IPV6} && $sock->sockdomain() == AF_INET) {
# should we allow to specify the interfache instead of using any?
my $ip_mreq = Socket::pack_ip_mreq( inet_aton( $addr ), INADDR_ANY );
setsockopt($sock, Socket::IPPROTO_IP, Socket::IP_ADD_MEMBERSHIP, $ip_mreq )
setsockopt($sock, Socket::IPPROTO_IP, $addMembership, $ip_mreq )
or return "$name: could not set IP_ADD_MEMBERSHIP socket option: $!";
} elsif($hash->{IPV6} && $sock->sockdomain() == AF_INET6) {
# should we allow to specify the interfache instead of using any?
my $ipv6_mreq = Socket::pack_ipv6_mreq( inet_pton( AF_INET6, $addr ), 0 );
setsockopt($sock, Socket::IPPROTO_IPV6, Socket::IPV6_JOIN_GROUP, $ipv6_mreq )
setsockopt($sock, Socket::IPPROTO_IPV6, $joinGroup, $ipv6_mreq )
or return "$name: could not set IPV6_JOIN_GROUP socket option: $!";
} else {
@ -165,7 +180,7 @@ TcpServer_MCastRecv($$$;$)
return $peer_host, $peer_port;
} else {
Log3 $name, 1, "$name: TcpServer_MCastRecv failed: unsupported socket family";
Log3 $name, 1,"$name: TcpServer_MCastRecv failed: unsupported socket family";
return undef;
}
}
@ -214,17 +229,13 @@ TcpServer_MCastRemove($$)
delete $hash->{ADDR};
if(!$hash->{IPV6} && $sock->sockdomain() == AF_INET) {
# should we allow to specify the interfache instead of using any?
my $ip_mreq = Socket::pack_ip_mreq( inet_aton( $addr ), INADDR_ANY );
setsockopt($sock, Socket::IPPROTO_IP, Socket::IP_DROP_MEMBERSHIP, $ip_mreq )
setsockopt($sock, Socket::IPPROTO_IP, $dropMembership, $ip_mreq )
or return "$name: could not set IP_DROP_MEMBERSHIP socket option: $!";
} elsif($hash->{IPV6} && $sock->sockdomain() == AF_INET6) {
# should we allow to specify the interfache instead of using any?
my $ipv6_mreq = Socket::pack_ipv6_mreq( inet_pton( AF_INET6, $addr ), 0 );
setsockopt($sock, Socket::IPPROTO_IPV6, Socket::IPV6_LEAVE_GROUP, $ipv6_mreq)
setsockopt($sock, Socket::IPPROTO_IPV6, $leaveGroup, $ipv6_mreq)
or return "$name: could not set IPV6_LEAVE_GROUP socket option: $!";
} else {
@ -233,7 +244,6 @@ TcpServer_MCastRemove($$)
}
readingsSingleUpdate($hash, "state", "Multicast listen stopped", 0);
return undef;
}