en Copyright 2015 Java http://kernelsources.org:8080/source/history/freebsd/tests/sys/netinet/ip6_mrouted.c#09e702ad40af0067017613070b42d72cbc2bec3a tests: Add some simple regression tests for ip_mrouteThese use atf_python to create a number of hosts linked to a router.The router runs pimd (for IPv4) or ip6_mrouter (simplistic IPv6multicast router that I wrote since I couldn't find one in the portstree). The vnet_host*_handler() methods are invoked in different VNETjails connected to the router; they register the connected epair with amulticast group and verify that they can send messages to each other.The tests are synchronized by sending messages over a unix domainsocket. The flow is something like:1) test startup_method() is called, the unix socket is created,2) the superclass creates jails and links them together using the declared topology,3) we wait for all child jails to start up and send a message on the unix socket indicating that they are ready4) we start the routing daemon in the main jail,5) the test actually starts; starttest() kicks off the vnet_host*_handlers(), which mostly just verify that they can send messages to each other using multicast packets6) once they finish running, they signal their completion, and waittest() returns once they're all doneThere are two tests, repeated for v4 and v6. One just exchanges packetsbetween two hosts, and the other has four hosts divided across two FIBs.MFC after: 2 weeksSponsored by: StormshieldSponsored by: Klara, Inc.Differential Revision: https://reviews.freebsd.org/D55244 List of files: /freebsd/tests/sys/netinet/ip6_mrouted.c Mon, 30 Mar 2026 15:32:35 +0200 Mark Johnston <markj@FreeBSD.org>