linux/tools/testing/selftests/netfilter, branch v5.5

selftests: netfilter: extend flowtable test script with dnat rule

2019-12-20T01:12:27Z

NAT test currently covers snat (masquerade) only. Also add a dnat rule and then check that a connecting to the to-be-dnated address will work. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso

selftests: netfilter: use randomized netns names

2019-12-07T18:50:39Z

Using ns0, ns1, etc. isn't a good idea, they might exist already. Use a random suffix. Also, older nft versions don't support "-" as alias for stdin, so use /dev/stdin instead. Signed-off-by: Florian Westphal Acked-by: Phil Sutter Signed-off-by: Pablo Neira Ayuso

selftests: netfilter: add ipvs tunnel test case

2019-10-11T08:05:27Z

Test virtual server via ipip tunnel. Tested: # selftests: netfilter: ipvs.sh # Testing DR mode... # Testing NAT mode... # Testing Tunnel mode... # ipvs.sh: PASS ok 6 selftests: netfilter: ipvs.sh Signed-off-by: Haishuang Yan Signed-off-by: Simon Horman

selftests: netfilter: add ipvs nat test case

2019-10-11T08:05:24Z

Test virtual server via NAT. Tested: # selftests: netfilter: ipvs.sh # Testing DR mode... # Testing NAT mode... # ipvs.sh: PASS Signed-off-by: Haishuang Yan Signed-off-by: Simon Horman

selftests: netfilter: add ipvs test script

2019-10-11T08:05:20Z

Test virutal server via directing routing for IPv4. Tested: # selftests: netfilter: ipvs.sh # Testing DR mode... # ipvs.sh: PASS ok 6 selftests: netfilter: ipvs.sh Signed-off-by: Haishuang Yan Signed-off-by: Simon Horman

selftests: netfilter: extend flowtable test script for ipsec

2019-08-05T09:29:50Z

'flow offload' expression should not offload flows that will be subject to ipsec, but it does. This results in a connectivity blackhole for the affected flows -- first packets will go through (offload happens after established state is reached), but all remaining ones bypass ipsec encryption and are thus discarded by the peer. This can be worked around by adding "rt ipsec exists accept" before the 'flow offload' rule matches. This test case will fail, support for such flows is added in next patch. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso

Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf

2019-05-23T21:45:36Z

Pablo Neira Ayuso says: ==================== Netfilter/IPVS fixes for net The following patchset contains Netfilter/IPVS fixes for your net tree: 1) Fix crash when dumping rules after conversion to RCU, from Florian Westphal. 2) Fix incorrect hook reinjection from nf_queue in case NF_REPEAT, from Jagdish Motwani. 3) Fix check for route existence in fib extension, from Phil Sutter. 4) Fix use after free in ip_vs_in() hook, from YueHaibing. 5) Check for veth existence from netfilter selftests, from Jeffrin Jose T. 6) Checksum corruption in UDP NAT helpers due to typo, from Florian Westphal. 7) Pass up packets to classic forwarding path regardless of IPv4 DF bit, patch for the flowtable infrastructure from Florian. 8) Set liberal TCP tracking for flows that are placed in the flowtable, in case they need to go back to classic forwarding path, also from Florian. 9) Don't add flow with sequence adjustment to flowtable, from Florian. 10) Skip IPv4 options from IPv6 datapath in flowtable, from Florian. 11) Add selftest for the flowtable infrastructure, from Florian. ==================== Signed-off-by: David S. Miller

selftests: netfilter: add flowtable test script

2019-05-22T08:56:11Z

Exercises 3 cases: 1. no pmtu discovery (need to frag) 2. no PMTUd + NAT (don't flag packets as invalid from conntrack) 3. PMTU + NAT (need to send icmp error) The first two cases make sure we handle fragments correctly, i.e. pass them to classic forwarding path. Third case checks we offload everything (in the test case, PMTUd will kick in so all packets should be within link mtu). Nftables rules will filter packets that are supposed to be handled by the fast-path. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso

selftests: netfilter: missing error check when setting up veth interface

2019-05-21T18:12:20Z

A test for the basic NAT functionality uses ip command which needs veth device. There is a condition where the kernel support for veth is not compiled into the kernel and the test script breaks. This patch contains code for reasonable error display and correct code exit. Signed-off-by: Jeffrin Jose T Acked-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso

kselftests: netfilter: fix leftover net/net-next merge conflict

2019-05-19T01:15:13Z

In nf-next, I had extended this script to also cover NAT support for the inet family. In nf, I extended it to cover a regression with 'fully-random' masquerade. Make this script work again by resolving the conflicts as needed. Fixes: 8b4483658364f0 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net") Signed-off-by: Florian Westphal Signed-off-by: David S. Miller