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Add raw_connect and raw_connect_works to Cluster.pm

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These two routines will be used in a test of an upcoming fix.  This
commit affects the v14~v17 range.  v18 and newer versions already
include them, thanks to 85ec945b78.

Security: CVE-2026-6479
Backpatch-through: 14
This commit is contained in:
Michael Paquier 2026-05-11 05:13:49 -07:00 committed by Noah Misch
parent aff71f87ba
commit c2e6ef8631
1 changed files with 76 additions and 0 deletions
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76
src/test/perl/PostgreSQL/Test/Cluster.pm
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@ -286,6 +286,82 @@ sub connstr
=pod
=item $node->raw_connect()
Open a raw TCP or Unix domain socket connection to the server. This is
used by low-level protocol and connection limit tests.
=cut
sub raw_connect
{
my ($self) = @_;
my $pgport = $self->port;
my $pghost = $self->host;
my $socket;
if ($PostgreSQL::Test::Utils::use_unix_sockets)
{
require IO::Socket::UNIX;
my $path = "$pghost/.s.PGSQL.$pgport";
$socket = IO::Socket::UNIX->new(
Type => SOCK_STREAM(),
Peer => $path,
) or die "Cannot create socket - $IO::Socket::errstr\n";
}
else
{
$socket = IO::Socket::INET->new(
PeerHost => $pghost,
PeerPort => $pgport,
Proto => 'tcp'
) or die "Cannot create socket - $IO::Socket::errstr\n";
}
return $socket;
}
=pod
=item $node->raw_connect_works()
Check if raw_connect() function works on this platform. This should
be called to SKIP any tests that require raw_connect().
This tries to connect to the server, to test whether it works or not,,
so the server is up and running. Otherwise this can return 0 even if
there's nothing wrong with raw_connect() itself.
Notably, raw_connect() does not work on Unix domain sockets on
Strawberry perl 5.26.3.1 on Windows, which we use in Cirrus CI images
as of this writing. It dies with "not implemented on this
architecture".
=cut
sub raw_connect_works
{
my ($self) = @_;
# If we're using Unix domain sockets, we need a working
# IO::Socket::UNIX implementation.
if ($PostgreSQL::Test::Utils::use_unix_sockets)
{
eval {
my $sock = $self->raw_connect();
$sock->close();
};
if ($@ =~ /not implemented/)
{
diag "IO::Socket::UNIX does not work: $@";
return 0;
}
}
return 1;
}
=pod
=item $node->group_access()
Does the data dir allow group access?