[pve-devel] [PATCH storage] storage migration: insecure: improve logging

[Fabian Ebner <f.ebner@proxmox.com>]

by including the message/error from the remote side. Some people on the forum [0]
ran into 'no tunnel IP received', but without information from the remote side
it's hard to tell why.

[0]: https://forum.proxmox.com/threads/failed-no-tunnel-ip-received.80172

Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
---
 PVE/Storage.pm | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/PVE/Storage.pm b/PVE/Storage.pm
index 22a6ef1..3c03abe 100755
--- a/PVE/Storage.pm
+++ b/PVE/Storage.pm
@@ -758,8 +758,16 @@ sub storage_migrate {
 		or die "receive command failed: $!\n";
 	    close($input);
 
-	    my ($ip) = <$info> =~ /^($PVE::Tools::IPRE)$/ or die "no tunnel IP received\n";
-	    my ($port) = <$info> =~ /^(\d+)$/ or die "no tunnel port received\n";
+	    my $ip = <$info> // '';
+	    chomp($ip);
+	    die "no tunnel IP received, got '$ip'\n"
+		if $ip !~ /^$PVE::Tools::IPRE$/;
+
+	    my $port = <$info> // '';
+	    chomp($port);
+	    die "no tunnel port received, got '$port'\n"
+		if $port !~ /^\d+$/;
+
 	    my $socket = IO::Socket::IP->new(PeerHost => $ip, PeerPort => $port, Type => SOCK_STREAM)
 		or die "failed to connect to tunnel at $ip:$port\n";
 	    # we won't be reading from the socket
-- 
2.20.1