service_manager() in service.h lacks IPv6 waypoint check, causes IPv6 traffic to skip proxy

[wxnzb]

What happened:
In bpf/kmesh/service/service.c, the current logic in service_manager() only checks for IPv4 waypoint:
if (service_v->wp_addr.ip4 != 0 && service_v->waypoint_port != 0)
This causes all IPv6 traffic to not be routed through the waypoint, even when a valid IPv6 wp_addr and waypoint_port are configured.

What you expected to happen:
IPv6 traffic should also be routed through the waypoint if a valid IPv6 address and port are configured in the service entry.
How to reproduce it (as minimally and precisely as possible):
Proposed fix:

Add IPv6 address check explicitly:
if ((service_v->wp_addr.ip4 != 0 && service_v->waypoint_port != 0) ||
((service_v->wp_addr.ip6[0] != 0 || service_v->wp_addr.ip6[1] != 0 ||
service_v->wp_addr.ip6[2] != 0 || service_v->wp_addr.ip6[3] != 0) &&
service_v->waypoint_port != 0)) {
...
}
Anything else we need to know?:

Environment:

• Kmesh version:
• Kmesh mode(kmesh has Kernel-Native Mode and Duel-Engine Mode):
• Istio version:
• Kernel version:
• Others:

[1012Charan]

Hey @wxnzb ! Thanks for the detailed explanation — I think I get the gist of the issue. I’d love to try implementing the IPv6 check you mentioned in service_manager() and test if the traffic gets routed properly through the waypoint. Could you assign this to me? I’ll let you know if I run into anything confusing. Thanks!