cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rif_mac_profile_scale.sh (1679B)


      1#!/bin/bash
      2# SPDX-License-Identifier: GPL-2.0
      3
      4# Test for RIF MAC profiles resource. The test adds VLAN netdevices according to
      5# the maximum number of RIF MAC profiles, sets each of them with a random
      6# MAC address, and checks that eventually the number of occupied RIF MAC
      7# profiles equals the maximum number of RIF MAC profiles.
      8
      9
     10RIF_MAC_PROFILE_NUM_NETIFS=2
     11
     12rif_mac_profiles_create()
     13{
     14	local count=$1; shift
     15	local should_fail=$1; shift
     16	local batch_file="$(mktemp)"
     17
     18	for ((i = 1; i <= count; i++)); do
     19		vlan=$(( i*10 ))
     20		m=$(( i*11 ))
     21
     22		cat >> $batch_file <<-EOF
     23			link add link $h1 name $h1.$vlan \
     24				address 00:$m:$m:$m:$m:$m type vlan id $vlan
     25			address add 192.0.$m.1/24 dev $h1.$vlan
     26		EOF
     27	done
     28
     29	ip -b $batch_file &> /dev/null
     30	check_err_fail $should_fail $? "RIF creation"
     31
     32	rm -f $batch_file
     33}
     34
     35rif_mac_profile_test()
     36{
     37	local count=$1; shift
     38	local should_fail=$1; shift
     39
     40	rif_mac_profiles_create $count $should_fail
     41
     42	occ=$(devlink -j resource show $DEVLINK_DEV \
     43	      | jq '.[][][] | select(.name=="rif_mac_profiles") |.["occ"]')
     44
     45	[[ $occ -eq $count ]]
     46	check_err_fail $should_fail $? "Attempt to use $count profiles (actual result $occ)"
     47}
     48
     49rif_mac_profile_setup_prepare()
     50{
     51	h1=${NETIFS[p1]}
     52	h2=${NETIFS[p2]}
     53
     54	# Disable IPv6 on the two interfaces to avoid IPv6 link-local addresses
     55	# being generated and RIFs being created.
     56	sysctl_set net.ipv6.conf.$h1.disable_ipv6 1
     57	sysctl_set net.ipv6.conf.$h2.disable_ipv6 1
     58
     59	ip link set $h1 up
     60	ip link set $h2 up
     61}
     62
     63rif_mac_profile_cleanup()
     64{
     65	pre_cleanup
     66
     67	ip link set $h2 down
     68	ip link set $h1 down
     69
     70	sysctl_restore net.ipv6.conf.$h2.disable_ipv6
     71	sysctl_restore net.ipv6.conf.$h1.disable_ipv6
     72}