# SPDX-License-Identifier: AGPL-3.0-or-later # # PASST - Plug A Simple Socket Transport # for qemu/UNIX domain socket mode # # PASTA - Pack A Subtle Tap Abstraction # for network namespace/tap device mode # # test/passt_in_ns/icmp - Check ICMP/ICMPv6 functionality for passt in ns # # Copyright (c) 2021 Red Hat GmbH # Author: Stefano Brivio # # These tests can work reliably only within an isolated namespace: the host # might have a net.ipv4.ping_group_range sysctl value not allowing pasta's gid # to create "ping" sockets. Inside the namespace, there's a single group, which # is allowed by default to create them. nstools ip jq sleep gtools ping ip jq test ICMP echo: guest to ns nsout IFNAME_NS ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname' ns ip addr add 192.0.2.1/32 dev __IFNAME_NS__ guest ping -c1 -w1 192.0.2.1 ns ip addr del 192.0.2.1/32 dev __IFNAME_NS__ test ICMPv6 echo: guest to ns ns ip addr add 2001:db8::1 dev __IFNAME_NS__ && sleep 2 # DAD gout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname' guest ping -c1 -w1 2001:db8::1 ns ip addr del 2001:db8::1 dev __IFNAME_NS__