[pve-devel] [PATCH storage] iscsi: add hostname support in portal addresses

[Stelios Vailakakis]

Currently, the iSCSI plugin regex patterns only match IPv4 and IPv6
addresses, causing session parsing to fail when portals use hostnames
(like nas.example.com:3260).

This patch updates ISCSI_TARGET_RE and session parsing regex to accept
any non-whitespace characters before the port, allowing hostname-based
portals to work correctly.

Tested with IP and hostname-based portals on Proxmox VE 8.2, 8.3, and 8.4.1

Signed-off-by: Stelios Vailakakis <stelios at libvirt.dev>
---
 src/PVE/Storage/ISCSIPlugin.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/PVE/Storage/ISCSIPlugin.pm b/src/PVE/Storage/ISCSIPlugin.pm
index 7691ec6..33b3d19 100644
--- a/src/PVE/Storage/ISCSIPlugin.pm
+++ b/src/PVE/Storage/ISCSIPlugin.pm
@@ -33,7 +33,7 @@ my sub assert_iscsi_support {
 }
 
 # Example: 192.168.122.252:3260,1 iqn.2003-01.org.linux-iscsi.proxmox-nfs.x8664:sn.00567885ba8f
-my $ISCSI_TARGET_RE = qr/^((?:$IPV4RE|\[$IPV6RE\]):\d+)\,\S+\s+(\S+)\s*$/;
+my $ISCSI_TARGET_RE = qr/^(\S+:\d+)\,\S+\s+(\S+)\s*$/;
 
 sub iscsi_session_list {
     assert_iscsi_support();
@@ -49,7 +49,7 @@ sub iscsi_session_list {
                 my $line = shift;
                 # example: tcp: [1] 192.168.122.252:3260,1 iqn.2003-01.org.linux-iscsi.proxmox-nfs.x8664:sn.00567885ba8f (non-flash)
                 if ($line =~
-                    m/^tcp:\s+\[(\S+)\]\s+((?:$IPV4RE|\[$IPV6RE\]):\d+)\,\S+\s+(\S+)\s+\S+?\s*$/
+                    m/^tcp:\s+\[(\S+)\]\s+(\S+:\d+)\,\S+\s+(\S+)\s+\S+?\s*$/
                 ) {
                     my ($session_id, $portal, $target) = ($1, $2, $3);
                     # there can be several sessions per target (multipath)
-- 
2.39.5