# SPDX-License-Identifier: GPL-2.0-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/dhcp - Check DHCP and DHCPv6 functionality for passt in ns with pasta # # Copyright Red Hat # Author: Stefano Brivio gtools ip jq dhclient sed tr htools ip jq sed tr head test Provided addresses gout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname' test Interface name gout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname' hout HOST_IFNAME ip -j -4 route show|jq -rM '[.[] | select(.dst == "default").dev] | .[0]' hout HOST_IFNAME6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").dev] | .[0]' check [ -n "__IFNAME__" ] test DHCP: address guest /sbin/dhclient -4 __IFNAME__ gout ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local' hout HOST_ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__HOST_IFNAME__").addr_info[0].local' check [ "__ADDR__" = "__HOST_ADDR__" ] test DHCP: route gout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway' hout HOST_GW ip -j -4 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]' check [ "__GW__" = "__HOST_GW__" ] test DHCP: MTU gout MTU ip -j link show | jq -rM '.[] | select(.ifname == "__IFNAME__").mtu' check [ __MTU__ = 65520 ] test DHCP: DNS gout DNS sed -n 's/^nameserver \([0-9]*\.\)\(.*\)/\1\2/p' /etc/resolv.conf | tr '\n' ',' | sed 's/,$//;s/$/\n/' hout HOST_DNS sed -n 's/^nameserver \([0-9]*\.\)\(.*\)/\1\2/p' /etc/resolv.conf | head -n3 | tr '\n' ',' | sed 's/,$//;s/$/\n/' check [ "__DNS__" = "__HOST_DNS__" ] || [ "__DNS__" = "__NAT_TO_NS4__" -a "__HOST_DNS__" = "127.0.0.1" ] # FQDNs should be terminated by dots, but the guest DHCP client might omit them: # strip them first test DHCP: search list gout SEARCH sed 's/\. / /g' /etc/resolv.conf | sed 's/\.$//g' | sed -n 's/^search \(.*\)/\1/p' | tr ' \n' ',' | sed 's/,$//;s/$/\n/' hout HOST_SEARCH sed 's/\. / /g' /etc/resolv.conf | sed 's/\.$//g' | sed -n 's/^search \(.*\)/\1/p' | tr ' \n' ',' | sed 's/,$//;s/$/\n/' check [ "__SEARCH__" = "__HOST_SEARCH__" ] test DHCPv6: address guest /sbin/dhclient -6 __IFNAME__ gout ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[] | select(.prefixlen == 128).local' hout HOST_ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__HOST_IFNAME6__").addr_info[] | select(.scope == "global").local' check [ "__ADDR6__" = "__HOST_ADDR6__" ] test DHCPv6: route gout GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway' hout HOST_GW6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]' check [ "__GW6__" = "__HOST_GW6__" ] # Strip interface specifier: interface names might differ between host and guest test DHCPv6: DNS gout DNS6 sed -n 's/^nameserver \([^:]*:\)\([^%]*\).*/\1\2/p' /etc/resolv.conf | tr '\n' ',' | sed 's/,$//;s/$/\n/' hout HOST_DNS6 sed -n 's/^nameserver \([^:]*:\)\([^%]*\).*/\1\2/p' /etc/resolv.conf | tr '\n' ',' | sed 's/,$//;s/$/\n/' check [ "__DNS6__" = "__HOST_DNS6__" ] || [ "__DNS6__" = "__NAT_TO_HOST6__" -a "__HOST_DNS6__" = "::1" ] test DHCPv6: search list gout SEARCH6 sed 's/\. / /g' /etc/resolv.conf | sed 's/\.$//g' | sed -n 's/^search \(.*\)/\1/p' | tr ' \n' ',' | sed 's/,$//;s/$/\n/' hout HOST_SEARCH6 sed 's/\. / /g' /etc/resolv.conf | sed 's/\.$//g' | sed -n 's/^search \(.*\)/\1/p' | tr ' \n' ',' | sed 's/,$//;s/$/\n/' check [ "__SEARCH6__" = "__HOST_SEARCH6__" ]