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selftests: xfrm: alter htresh to trigger move of policies to hash table 

... and back to inexact tree.
Repeat ping test after each htresh change: lookup results must not change.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Florian Westphal 2019-01-04 14:17:04 +01:00 committed by Steffen Klassert
parent 1d38900cb8
commit fcf86f55f2
1 changed files with 40 additions and 4 deletions
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44
tools/testing/selftests/net/xfrm_policy.sh
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@ -28,6 +28,19 @@ KEY_AES=0x0123456789abcdef0123456789012345
SPI1=0x1 SPI1=0x1
SPI2=0x2 SPI2=0x2
do_esp_policy() {
local ns=$1
local me=$2
local remote=$3
local lnet=$4
local rnet=$5
# to encrypt packets as they go out (includes forwarded packets that need encapsulation)
ip -net $ns xfrm policy add src $lnet dst $rnet dir out tmpl src $me dst $remote proto esp mode tunnel priority 100 action allow
# to fwd decrypted packets after esp processing:
ip -net $ns xfrm policy add src $rnet dst $lnet dir fwd tmpl src $remote dst $me proto esp mode tunnel priority 100 action allow
}
do_esp() { do_esp() {
local ns=$1 local ns=$1
local me=$2 local me=$2
@ -40,10 +53,7 @@ do_esp() {
ip -net $ns xfrm state add src $remote dst $me proto esp spi $spi_in enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $rnet dst $lnet ip -net $ns xfrm state add src $remote dst $me proto esp spi $spi_in enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $rnet dst $lnet
ip -net $ns xfrm state add src $me dst $remote proto esp spi $spi_out enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $lnet dst $rnet ip -net $ns xfrm state add src $me dst $remote proto esp spi $spi_out enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $lnet dst $rnet
# to encrypt packets as they go out (includes forwarded packets that need encapsulation) do_esp_policy $ns $me $remote $lnet $rnet
ip -net $ns xfrm policy add src $lnet dst $rnet dir out tmpl src $me dst $remote proto esp mode tunnel priority 100 action allow
# to fwd decrypted packets after esp processing:
ip -net $ns xfrm policy add src $rnet dst $lnet dir fwd tmpl src $remote dst $me proto esp mode tunnel priority 100 action allow
} }
# add policies with different netmasks, to make sure kernel carries # add policies with different netmasks, to make sure kernel carries
@ -370,6 +380,32 @@ if [ $? -ne 0 ]; then
ret=1 ret=1
fi fi
for n in ns3 ns4;do
ip -net $n xfrm policy set hthresh4 28 24 hthresh6 126 125
sleep $((RANDOM%5))
done
check_exceptions "exceptions and block policies after hresh changes"
# full flush of policy db, check everything gets freed incl. internal meta data
ip -net ns3 xfrm policy flush
do_esp_policy ns3 10.0.3.1 10.0.3.10 10.0.1.0/24 10.0.2.0/24
do_exception ns3 10.0.3.1 10.0.3.10 10.0.2.253 10.0.2.240/28
# move inexact policies to hash table
ip -net ns3 xfrm policy set hthresh4 16 16
sleep $((RANDOM%5))
check_exceptions "exceptions and block policies after hthresh change in ns3"
# restore original hthresh settings -- move policies back to tables
for n in ns3 ns4;do
ip -net $n xfrm policy set hthresh4 32 32 hthresh6 128 128
sleep $((RANDOM%5))
done
check_exceptions "exceptions and block policies after hresh change to normal"
for i in 1 2 3 4;do ip netns del ns$i;done for i in 1 2 3 4;do ip netns del ns$i;done
exit $ret exit $ret