[pve-devel] [PATCH manager v3 1/1] proxy: fix wildcard address use

[Stoiko Ivanov <s.ivanov@proxmox.com>]

This patch fixes a regression for hosts disabling ipv6 via kernel
commandline ('ipv6.disable=1')introduced in commit
fc087ec2b924dc9c72d3bf80face8a1731c15405
(disabling IPv6 via sysctl did not exhibit these problems)

by hardcoding the address to '::', pveproxy and spiceproxy failed to
start with:
'unable to create socket - Address family not supported by protocol'

This patch depends on the commit in pve-common, which tries first
binding to '::' and then falling back to '0.0.0.0', and needs a
versioned dependency bump on libpve-common-perl.

With this patch the listening addresses are (`ss -tlnp |grep 8006` output)
* ipv6 disabled via kernel cmdline: '0.0.0.0:8006'
* sysctl net.ipv6.conf.all.disable_ipv6=1: '*:8006'
* sysctl net.ipv6.bindv6only=1: '[::]:8006'
* else: '*:8006'

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 PVE/Service/pveproxy.pm   | 2 +-
 PVE/Service/spiceproxy.pm | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/PVE/Service/pveproxy.pm b/PVE/Service/pveproxy.pm
index 4ecd442a..d10c4fe9 100755
--- a/PVE/Service/pveproxy.pm
+++ b/PVE/Service/pveproxy.pm
@@ -69,7 +69,7 @@ sub init {
     my $lockfh = IO::File->new(">>${accept_lock_fn}") ||
 	die "unable to open lock file '${accept_lock_fn}' - $!\n";
 
-    my $listen_ip = $proxyconf->{LISTEN_IP} // "::0";
+    my $listen_ip = $proxyconf->{LISTEN_IP};
     my $socket = $self->create_reusable_socket(8006, $listen_ip);
 
     my $dirs = {};
diff --git a/PVE/Service/spiceproxy.pm b/PVE/Service/spiceproxy.pm
index 24be0ed7..50b81c18 100755
--- a/PVE/Service/spiceproxy.pm
+++ b/PVE/Service/spiceproxy.pm
@@ -39,7 +39,7 @@ sub init {
     my $lockfh = IO::File->new(">>${accept_lock_fn}") ||
 	die "unable to open lock file '${accept_lock_fn}' - $!\n";
 
-    my $listen_ip = $proxyconf->{LISTEN_IP} // "::0";
+    my $listen_ip = $proxyconf->{LISTEN_IP};
     my $socket = $self->create_reusable_socket(3128, $listen_ip);
 
     $self->{server_config} = {
-- 
2.20.1