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6 daysselftest: net: Fix weird setsockopt() in bind_bhash.c.Kuniyuki Iwashima1-2/+2
[ Upstream commit fd2004d82d8d8faa94879e3de3096c8511728637 ] bind_bhash.c passes (SO_REUSEADDR | SO_REUSEPORT) to setsockopt(). In the asm-generic definition, the value happens to match with the bare SO_REUSEPORT, (2 | 15) == 15, but not on some arch. arch/alpha/include/uapi/asm/socket.h:18:#define SO_REUSEADDR 0x0004 arch/alpha/include/uapi/asm/socket.h:24:#define SO_REUSEPORT 0x0200 arch/mips/include/uapi/asm/socket.h:24:#define SO_REUSEADDR 0x0004 /* Allow reuse of local addresses. */ arch/mips/include/uapi/asm/socket.h:33:#define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ arch/parisc/include/uapi/asm/socket.h:12:#define SO_REUSEADDR 0x0004 arch/parisc/include/uapi/asm/socket.h:18:#define SO_REUSEPORT 0x0200 arch/sparc/include/uapi/asm/socket.h:13:#define SO_REUSEADDR 0x0004 arch/sparc/include/uapi/asm/socket.h:20:#define SO_REUSEPORT 0x0200 include/uapi/asm-generic/socket.h:12:#define SO_REUSEADDR 2 include/uapi/asm-generic/socket.h:27:#define SO_REUSEPORT 15 Let's pass SO_REUSEPORT only. Fixes: c35ecb95c448 ("selftests/net: Add test for timing a bind request to a port with a populated bhash entry") Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250903222938.2601522-1-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
6 daysselftests: netfilter: fix udpclash tool hangFlorian Westphal3-4/+5
[ Upstream commit 661a4f307fe0f80c1d544e09476ccba9037e8e65 ] Yi Chen reports that 'udpclash' loops forever depending on compiler (and optimization level used); while (x == 1) gets optimized into for (;;). Add volatile qualifier to avoid that. While at it, also run it under timeout(1) and fix the resize script to not ignore the timeout passed as second parameter to insert_flood. Reported-by: Yi Chen <yiche@redhat.com> Suggested-by: Yi Chen <yiche@redhat.com> Fixes: 78a588363587 ("selftests: netfilter: add conntrack clash resolution test case") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
6 daysnetfilter: nft_flowtable.sh: re-run with random mtu sizesFlorian Westphal1-37/+76
[ Upstream commit d6a367ec6c96fc8e61b4d67e69df03565ec69fb7 ] Jakub says: nft_flowtable.sh is one of the most flake-atious test for netdev CI currently :( The root cause is two-fold: 1. the failing part of the test is supposed to make sure that ip fragments are forwarded for offloaded flows. (flowtable has to pass them to classic forward path). path mtu discovery for these subtests is disabled. 2. nft_flowtable.sh has two passes. One with fixed mtus/file size and one where link mtus and file sizes are random. The CI failures all have same pattern: re-run with random mtus and file size: -o 27663 -l 4117 -r 10089 -s 54384840 [..] PASS: dscp_egress: dscp packet counters match FAIL: file mismatch for ns1 -> ns2 In some cases this error triggers a bit ealier, sometimes in a later subtest: re-run with random mtus and file size: -o 20201 -l 4555 -r 12657 -s 9405856 [..] PASS: dscp_egress: dscp packet counters match PASS: dscp_fwd: dscp packet counters match 2025/08/17 20:37:52 socat[18954] E write(7, 0x560716b96000, 8192): Broken pipe FAIL: file mismatch for ns1 -> ns2 -rw------- 1 root root 9405856 Aug 17 20:36 /tmp/tmp.2n63vlTrQe But all logs I saw show same scenario: 1. Failing tests have pmtu discovery off (i.e., ip fragmentation) 2. The test file is much larger than first-pass default (2M Byte) 3. peers have much larger MTUs compared to the 'network'. These errors are very reproducible when re-running the test with the same commandline arguments. The timeout became much more prominent with 1d2fbaad7cd8 ("tcp: stronger sk_rcvbuf checks"): reassembled packets typically have a skb->truesize more than double the skb length. As that commit is intentional and pmtud-off with large-tcp-packets-as-fragments is not normal adjust the test to use a smaller file for the pmtu-off subtests. While at it, add more information to pass/fail messages and also run the dscp alteration subtest with pmtu discovery enabled. Link: https://netdev.bots.linux.dev/contest.html?test=nft-flowtable-sh Fixes: f84ab634904c ("selftests: netfilter: nft_flowtable.sh: re-run with random mtu sizes") Reported-by: Jakub Kicinski <kuba@kernel.org> Closes: https://lore.kernel.org/netdev/20250822071330.4168f0db@kernel.org/ Signed-off-by: Florian Westphal <fw@strlen.de> Link: https://patch.msgid.link/20250828214918.3385-1-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-28selftests: mptcp: sockopt: fix C23 extension warningMatthieu Baerts (NGI0)2-4/+6
commit 3259889fd3c0cc165b7e9ee375c789875dd32326 upstream. GCC was complaining about the new label: mptcp_inq.c:79:2: warning: label followed by a declaration is a C23 extension [-Wc23-extensions] 79 | int err = getaddrinfo(node, service, hints, res); | ^ mptcp_sockopt.c:166:2: warning: label followed by a declaration is a C23 extension [-Wc23-extensions] 166 | int err = getaddrinfo(node, service, hints, res); | ^ Simply declare 'err' before the label to avoid this warning. Fixes: dd367e81b79a ("selftests: mptcp: sockopt: use IPPROTO_MPTCP for getaddrinfo") Cc: stable@vger.kernel.org Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-8-521fe9957892@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28selftests: mptcp: connect: fix C23 extension warningMatthieu Baerts (NGI0)1-2/+3
commit 2eefbed30d46d5e68593baf6b52923e00e7678af upstream. GCC was complaining about the new label: mptcp_connect.c:187:2: warning: label followed by a declaration is a C23 extension [-Wc23-extensions] 187 | int err = getaddrinfo(node, service, hints, res); | ^ Simply declare 'err' before the label to avoid this warning. Fixes: a862771d1aa4 ("selftests: mptcp: use IPPROTO_MPTCP for getaddrinfo") Cc: stable@vger.kernel.org Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-7-521fe9957892@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28selftests: mptcp: pm: check flush doesn't reset limitsMatthieu Baerts (NGI0)1-0/+1
commit 452690be7de2f91cc0de68cb9e95252875b33503 upstream. This modification is linked to the parent commit where the received ADD_ADDR limit was accidentally reset when the endpoints were flushed. To validate that, the test is now flushing endpoints after having set new limits, and before checking them. The 'Fixes' tag here below is the same as the one from the previous commit: this patch here is not fixing anything wrong in the selftests, but it validates the previous fix for an issue introduced by this commit ID. Fixes: 01cacb00b35c ("mptcp: add netlink-based PM") Cc: stable@vger.kernel.org Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-3-521fe9957892@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-20selftests: netfilter: Enable CONFIG_INET_SCTP_DIAGSebastian Andrzej Siewior1-1/+1
[ Upstream commit ba71a6e58b38aa6f86865d4e18579cb014903692 ] The config snippet specifies CONFIG_SCTP_DIAG. This was never an option. Replace CONFIG_SCTP_DIAG with the intended CONFIG_INET_SCTP_DIAG. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-15selftests: avoid using ifconfigEric Dumazet1-8/+8
[ Upstream commit 7cbd49795d4ca86fba5830084e94fece3b343b79 ] ifconfig is deprecated and not always present, use ip command instead. Fixes: e0f3b3e5c77a ("selftests: Add test cases for vlan_filter modification during runtime") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Dong Chenchen <dongchenchen2@huawei.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250730115313.3356036-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-15selftests: rtnetlink.sh: remove esp4_offload after testXiumei Mu1-0/+6
[ Upstream commit 5b32321fdaf3fd1a92ec726af18765e225b0ee2b ] The esp4_offload module, loaded during IPsec offload tests, should be reset to its default settings after testing. Otherwise, leaving it enabled could unintentionally affect subsequence test cases by keeping offload active. Without this fix: $ lsmod | grep offload; ./rtnetlink.sh -t kci_test_ipsec_offload ; lsmod | grep offload; PASS: ipsec_offload esp4_offload 12288 0 esp4 32768 1 esp4_offload With this fix: $ lsmod | grep offload; ./rtnetlink.sh -t kci_test_ipsec_offload ; lsmod | grep offload; PASS: ipsec_offload Fixes: 2766a11161cc ("selftests: rtnetlink: add ipsec offload API test") Signed-off-by: Xiumei Mu <xmu@redhat.com> Reviewed-by: Shannon Nelson <sln@onemain.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/6d3a1d777c4de4eb0ca94ced9e77be8d48c5b12f.1753415428.git.xmu@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-15selftests: netfilter: ipvs.sh: Explicity disable rp_filter on interface tunl0Yi Chen1-2/+2
[ Upstream commit 8b4a1a46e84a17f5d6fde5c506cc6bb141a24772 ] Although setup_ns() set net.ipv4.conf.default.rp_filter=0, loading certain module such as ipip will automatically create a tunl0 interface in all netns including new created ones. In the script, this is before than default.rp_filter=0 applied, as a result tunl0.rp_filter remains set to 1 which causes the test report FAIL when ipip module is preloaded. Before fix: Testing DR mode... Testing NAT mode... Testing Tunnel mode... ipvs.sh: FAIL After fix: Testing DR mode... Testing NAT mode... Testing Tunnel mode... ipvs.sh: PASS Fixes: 7c8b89ec506e ("selftests: netfilter: remove rp_filter configuration") Signed-off-by: Yi Chen <yiche@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-15selftests: netfilter: Ignore tainted kernels in interface stress testPhil Sutter1-1/+4
[ Upstream commit 8d1c91850d064944ab214b2fbfffb7fc08a11d65 ] Complain about kernel taint value only if it wasn't set at start already. Fixes: 73db1b5dab6f ("selftests: netfilter: Torture nftables netdev hooks") Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-23selftests: netfilter: tone-down conntrack clash testFlorian Westphal1-23/+22
The test is supposed to observe that the 'clash_resolve' stat counter incremented (i.e., the code path was covered). This check was incorrect, 'conntrack -S' needs to be called in the revevant namespace, not the initial netns. The clash resolution logic in conntrack is only exercised when multiple packets with the same udp quadruple race. Depending on kernel config, number of CPUs, scheduling policy etc. this might not trigger even after several retries. Thus the script eventually returns SKIP if the retry count is exceeded. The udpclash tool with also exit with a failure if it did not observe the expected number of replies. In the script, make a note of this but do not fail anymore, just check if the clash resolution logic triggered after all. Remove the 'single-core' test: while unlikely, with preemptible kernel it should be possible to also trigger clash resolution logic. With this change the test will either SKIP or pass. Hard error could be restored later once its clear whats going on, so also dump 'conntrack -S' when some packets went missing to see if conntrack dropped them on insert. Fixes: 78a588363587 ("selftests: netfilter: add conntrack clash resolution test case") Signed-off-by: Florian Westphal <fw@strlen.de> Link: https://patch.msgid.link/20250721223652.6956-1-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-22selftests: mptcp: connect: also cover checksumMatthieu Baerts (NGI0)2-1/+6
The checksum mode has been added a while ago, but it is only validated when manually launching mptcp_connect.sh with "-C". The different CIs were then not validating these MPTCP Connect tests with checksum enabled. To make sure they do, add a new test program executing mptcp_connect.sh with the checksum mode. Fixes: 94d66ba1d8e4 ("selftests: mptcp: enable checksum in mptcp_connect.sh") Cc: stable@vger.kernel.org Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250715-net-mptcp-sft-connect-alt-v2-2-8230ddd82454@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-22selftests: mptcp: connect: also cover alt modesMatthieu Baerts (NGI0)3-1/+12
The "mmap" and "sendfile" alternate modes for mptcp_connect.sh/.c are available from the beginning, but only tested when mptcp_connect.sh is manually launched with "-m mmap" or "-m sendfile", not via the kselftests helpers. The MPTCP CI was manually running "mptcp_connect.sh -m mmap", but not "-m sendfile". Plus other CIs, especially the ones validating the stable releases, were not validating these alternate modes. To make sure these modes are validated by these CIs, add two new test programs executing mptcp_connect.sh with the alternate modes. Fixes: 048d19d444be ("mptcp: add basic kselftest for mptcp") Cc: stable@vger.kernel.org Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250715-net-mptcp-sft-connect-alt-v2-1-8230ddd82454@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17selftests: Add test cases for vlan_filter modification during runtimeDong Chenchen1-12/+86
Add test cases for vlan_filter modification during runtime, which may triger null-ptr-ref or memory leak of vlan0. Signed-off-by: Dong Chenchen <dongchenchen2@huawei.com> Link: https://patch.msgid.link/20250716034504.2285203-3-dongchenchen2@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17Merge tag 'nf-25-07-17' of ↵Paolo Abeni6-5/+432
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following batch contains Netfilter fixes for net: 1) Three patches to enhance conntrack selftests for resize and clash resolution, from Florian Westphal. 2) Expand nft_concat_range.sh selftest to improve coverage from error path, from Florian Westphal. 3) Hide clash bit to userspace from netlink dumps until there is a good reason to expose, from Florian Westphal. 4) Revert notification for device registration/unregistration for nftables basechains and flowtables, we decided to go for a better way to handle this through the nfnetlink_hook infrastructure which will come via nf-next, patch from Phil Sutter. 5) Fix crash in conntrack due to race related to SLAB_TYPESAFE_BY_RCU that results in removing a recycled object that is not yet in the hashes. Move IPS_CONFIRM setting after the object is in the hashes. From Florian Westphal. netfilter pull request 25-07-17 * tag 'nf-25-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry Revert "netfilter: nf_tables: Add notifications for hook changes" netfilter: nf_tables: hide clash bit from userspace selftests: netfilter: nft_concat_range.sh: send packets to empty set selftests: netfilter: conntrack_resize.sh: also use udpclash tool selftests: netfilter: add conntrack clash resolution test case selftests: netfilter: conntrack_resize.sh: extend resize test ==================== Link: https://patch.msgid.link/20250717095808.41725-1-pablo@netfilter.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-15selftests: net: increase inter-packet timeout in udpgro.shPaolo Abeni1-4/+4
The mentioned test is not very stable when running on top of debug kernel build. Increase the inter-packet timeout to allow more slack in such environments. Fixes: 3327a9c46352 ("selftests: add functionals test for UDP GRO") Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/b0370c06ddb3235debf642c17de0284b2cd3c652.1752163107.git.pabeni@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-14selftests: netfilter: nft_concat_range.sh: send packets to empty setFlorian Westphal1-0/+3
The selftest doesn't cover this error path: scratch = *raw_cpu_ptr(m->scratch); if (unlikely(!scratch)) { // here cover this too. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: conntrack_resize.sh: also use udpclash toolFlorian Westphal1-0/+17
Previous patch added a new clash resolution test case. Also use this during conntrack resize stress test in addition to icmp ping flood. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: add conntrack clash resolution test caseFlorian Westphal4-0/+337
Add a dedicated test to exercise conntrack clash resolution path. Test program emits 128 identical udp packets in parallel, then reads back replies from socat echo server. Also check (via conntrack -S) that the clash path was hit at least once. Due to the racy nature of the test its possible that despite the threaded program all packets were processed in-order or on same cpu, emit a SKIP warning in this case. Two tests are added: - one to test the simpler, non-nat case - one to exercise clash resolution where packets might have different nat transformations attached to them. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: conntrack_resize.sh: extend resize testFlorian Westphal1-5/+75
Extend the resize test: - continuously dump table both via /proc and ctnetlink interfaces while table is resized in a loop. - if socat is available, send udp packets in additon to ping requests. - increase/decrease the icmp and udp timeouts while resizes are happening. This makes sure we also exercise the 'ct has expired' check that happens on conntrack lookup. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-11selftests: net: lib: fix shift count out of rangeHangbin Liu1-1/+1
I got the following warning when writing other tests: + handle_test_result_pass 'bond 802.3ad' '(lacp_active off)' + local 'test_name=bond 802.3ad' + shift + local 'opt_str=(lacp_active off)' + shift + log_test_result 'bond 802.3ad' '(lacp_active off)' ' OK ' + local 'test_name=bond 802.3ad' + shift + local 'opt_str=(lacp_active off)' + shift + local 'result= OK ' + shift + local retmsg= + shift /net/tools/testing/selftests/net/forwarding/../lib.sh: line 315: shift: shift count out of range This happens because an extra shift is executed even after all arguments have been consumed. Remove the last shift in log_test_result() to avoid this warning. Fixes: a923af1ceee7 ("selftests: forwarding: Convert log_test() to recognize RET values") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250709091244.88395-1-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests: Add IPv6 multicast route generation tests for GRE devices.Guillaume Nault1-10/+17
The previous patch fixes a bug that prevented the creation of the default IPv6 multicast route (ff00::/8) for some GRE devices. Now let's extend the GRE IPv6 selftests to cover this case. Also, rename check_ipv6_ll_addr() to check_ipv6_device_config() and adapt comments and script output to take into account the fact that we're not limited to link-local address generation. Signed-off-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/65a89583bde3bf866a1922c2e5158e4d72c520e2.1752070620.git.gnault@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10selftests/net: packetdrill: add tcp_ooo-before-and-after-accept.pktEric Dumazet1-0/+53
Test how new passive flows react to ooo incoming packets. Their sk_rcvbuf can increase only after accept(). Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250707213900.1543248-3-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-24selftest: af_unix: Add tests for -ECONNRESET.Kuniyuki Iwashima1-4/+115
A new function resetpair() calls close() for the receiver and checks the return value from recv() on the initial sender side. Now resetpair() is added to each test case and some additional test cases. Note that TCP sets -ECONNRESET to the consumed OOB, but we have decided not to touch TCP MSG_OOB code in the past. Before: # RUN msg_oob.no_peek.ex_oob_ex_oob ... # msg_oob.c:236:ex_oob_ex_oob:AF_UNIX :Connection reset by peer # msg_oob.c:237:ex_oob_ex_oob:Expected: # msg_oob.c:239:ex_oob_ex_oob:Expected ret[0] (-1) == expected_len (0) # ex_oob_ex_oob: Test terminated by assertion # FAIL msg_oob.no_peek.ex_oob_ex_oob not ok 14 msg_oob.no_peek.ex_oob_ex_oob ... # FAILED: 36 / 48 tests passed. # Totals: pass:36 fail:12 xfail:0 xpass:0 skip:0 error:0 After: # RUN msg_oob.no_peek.ex_oob_ex_oob ... # msg_oob.c:244:ex_oob_ex_oob:AF_UNIX : # msg_oob.c:245:ex_oob_ex_oob:TCP :Connection reset by peer # OK msg_oob.no_peek.ex_oob_ex_oob ok 14 msg_oob.no_peek.ex_oob_ex_oob ... # PASSED: 48 / 48 tests passed. # Totals: pass:48 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250619041457.1132791-5-kuni1840@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-24af_unix: Add test for consecutive consumed OOB.Kuniyuki Iwashima1-0/+23
Let's add a test case where consecutive concumed OOB skbs stay at the head of the queue. Without the previous patch, ioctl(SIOCATMARK) assertion fails. Before: # RUN msg_oob.no_peek.ex_oob_ex_oob_oob ... # msg_oob.c:305:ex_oob_ex_oob_oob:Expected answ[0] (0) == oob_head (1) # ex_oob_ex_oob_oob: Test terminated by assertion # FAIL msg_oob.no_peek.ex_oob_ex_oob_oob not ok 12 msg_oob.no_peek.ex_oob_ex_oob_oob After: # RUN msg_oob.no_peek.ex_oob_ex_oob_oob ... # OK msg_oob.no_peek.ex_oob_ex_oob_oob ok 12 msg_oob.no_peek.ex_oob_ex_oob_oob Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250619041457.1132791-3-kuni1840@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-19selftests: net: add test for passive TFO socket NAPI IDDavid Wei2-0/+113
Add a test that checks that the NAPI ID of a passive TFO socket is valid i.e. not zero. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-4-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19selftests: net: add passive TFO test binaryDavid Wei3-0/+173
Add a simple passive TFO server and client test binary. This will be used to test the SO_INCOMING_NAPI_ID of passive TFO accepted sockets. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-3-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-12selftests: net: add test case for NAT46 looping back dstJakub Kicinski2-0/+16
Simple test for crash involving multicast loopback and stale dst. Reuse exising NAT46 program. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250610001245.1981782-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-05Merge tag 'nf-25-06-05' of ↵Paolo Abeni2-19/+164
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Zero out the remainder in nft_pipapo AVX2 implementation, otherwise next lookup could bogusly report a mismatch. This is followed by two patches to update nft_pipapo selftests to cover for the previous bug. From Florian Westphal. 2) Check for reverse tuple too in case of esoteric NAT collisions for UDP traffic and extend selftest coverage. Also from Florian. netfilter pull request 25-06-05 * tag 'nf-25-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: selftests: netfilter: nft_nat.sh: add test for reverse clash with nat netfilter: nf_nat: also check reverse tuple to obtain clashing entry selftests: netfilter: nft_concat_range.sh: add datapath check for map fill bug selftests: netfilter: nft_concat_range.sh: prefer per element counters for testing netfilter: nf_set_pipapo_avx2: fix initial map fill ==================== Link: https://patch.msgid.link/20250605085735.52205-1-pablo@netfilter.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-05selftests: netfilter: nft_nat.sh: add test for reverse clash with natFlorian Westphal1-5/+76
This will fail without the previous bug fix because we erronously believe that the clashing entry went way. However, the clash exists in the opposite direction due to an existing nat mapping: PASS: IP statless for ns2-LgTIuS ERROR: failed to test udp ns1-x4iyOW to ns2-LgTIuS with dnat rule step 2, result: "" This is partially adapted from test instructions from the below ubuntu tracker. Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2109889 Signed-off-by: Florian Westphal <fw@strlen.de> Tested-by: Shaun Brady <brady.1345@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-06-05selftests: netfilter: nft_concat_range.sh: add datapath check for map fill bugFlorian Westphal1-4/+58
commit 0935ee6032df ("selftests: netfilter: add test case for recent mismatch bug") added a regression check for incorrect initial fill of the result map that was fixed with 791a615b7ad2 ("netfilter: nf_set_pipapo: fix initial map fill"). The test used 'nft get element', i.e., control plane checks for match/nomatch results. The control plane however doesn't use avx2 version, so we need to send+match packets. As the additional packet match/nomatch is slow, don't do this for every element added/removed: add and use maybe_send_(no)match helpers and use them. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-06-05selftests: netfilter: nft_concat_range.sh: prefer per element counters for ↵Florian Westphal1-10/+30
testing The selftest uses following rule: ... @test counter name "test" Then sends a packet, then checks if the named counter did increment or not. This is fine for the 'no-match' test case: If anything matches the counter increments and the test fails as expected. But for the 'should match' test cases this isn't optimal. Consider buggy matching, where the packet matches entry x, but it should have matched entry y. In that case the test would erronously pass. Rework the selftest to use per-element counters to avoid this. After sending packet that should have matched entry x, query the relevant element via 'nft reset element' and check that its counter had incremented. The 'nomatch' case isn't altered, no entry should match so the named counter must be 0, changing it to the per-element counter would then pass if another entry matches. The downside of this change is a slight increase in test run-time by a few seconds. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-06-03selftest/net/ovpn: fix missing fileAntonio Quartulli1-0/+9
test-large-mtu.sh is referenced by the Makefile but does not exist. Add it along the other scripts. Fixes: 944f8b6abab6 ("selftest/net/ovpn: extend coverage with more test cases") Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2025-06-03selftest/net/ovpn: fix TCP socket creationAntonio Quartulli1-0/+1
TCP sockets cannot be created with AF_UNSPEC, but one among the supported family must be used. Since commit 944f8b6abab6 ("selftest/net/ovpn: extend coverage with more test cases") the default address family for all tests was changed from AF_INET to AF_UNSPEC, thus breaking all TCP cases. Restore AF_INET as default address family for TCP listeners. Fixes: 944f8b6abab6 ("selftest/net/ovpn: extend coverage with more test cases") Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2025-05-28selftests: netfilter: Fix skip of wildcard interface testPhil Sutter1-2/+5
The script is supposed to skip wildcard interface testing if unsupported by the host's nft tool. The failing check caused script abort due to 'set -e' though. Fix this by running the potentially failing nft command inside the if-conditional pipe. Fixes: 73db1b5dab6f ("selftests: netfilter: Torture nftables netdev hooks") Signed-off-by: Phil Sutter <phil@nwl.cc> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Link: https://patch.msgid.link/20250527094117.18589-1-phil@nwl.cc Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-28selftests: netfilter: nft_queue.sh: include file transfer duration in log ↵Florian Westphal1-7/+31
message Paolo Abeni says: Recently the nipa CI infra went through some tuning, and the mentioned self-test now often fails. The failing test is the sctp+nfqueue one, where the file transfer takes too long and hits the timeout (1 minute). Because SCTP nfqueue tests had timeout related issues before (esp. on debug kernels) print the file transfer duration in the PASS/FAIL message. This would aallow us to see if there is/was an unexpected slowdown (CI keeps logs around) or 'creeping slowdown' where things got slower over time until 'fail point' was reached. Output of altered lines looks like this: PASS: tcp and nfqueue in forward chan (duration: 2s) PASS: tcp via loopback (duration: 2s) PASS: sctp and nfqueue in forward chain (duration: 42s) PASS: sctp and nfqueue in output chain with GSO (duration: 21s) Reported-by: Paolo Abeni <pabeni@redhat.com Closes: https://lore.kernel.org/netdev/584524ef-9fd7-4326-9f1b-693ca62c5692@redhat.com/ Signed-off-by: Florian Westphal <fw@strlen.de> Link: https://patch.msgid.link/20250523121700.20011-1-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-28selftests: net: move wait_local_port_listen to lib.shHangbin Liu12-35/+28
The function wait_local_port_listen() is the only function defined in net_helper.sh. Since some tests source both lib.sh and net_helper.sh, we can simplify the setup by moving wait_local_port_listen() to lib.sh. With this change, net_helper.sh becomes redundant and can be removed. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250526014600.9128-1-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-26Merge tag 'nf-next-25-05-23' of ↵Paolo Abeni5-48/+915
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following batch contains Netfilter updates for net-next, specifically 26 patches: 5 patches adding/updating selftests, 4 fixes, 3 PREEMPT_RT fixes, and 14 patches to enhance nf_tables): 1) Improve selftest coverage for pipapo 4 bit group format, from Florian Westphal. 2) Fix incorrect dependencies when compiling a kernel without legacy ip{6}tables support, also from Florian. 3) Two patches to fix nft_fib vrf issues, including selftest updates to improve coverage, also from Florian Westphal. 4) Fix incorrect nesting in nft_tunnel's GENEVE support, from Fernando F. Mancera. 5) Three patches to fix PREEMPT_RT issues with nf_dup infrastructure and nft_inner to match in inner headers, from Sebastian Andrzej Siewior. 6) Integrate conntrack information into nft trace infrastructure, from Florian Westphal. 7) A series of 13 patches to allow to specify wildcard netdevice in netdev basechain and flowtables, eg. table netdev filter { chain ingress { type filter hook ingress devices = { eth0, eth1, vlan* } priority 0; policy accept; } } This also allows for runtime hook registration on NETDEV_{UN}REGISTER event, from Phil Sutter. netfilter pull request 25-05-23 * tag 'nf-next-25-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next: (26 commits) selftests: netfilter: Torture nftables netdev hooks netfilter: nf_tables: Add notifications for hook changes netfilter: nf_tables: Support wildcard netdev hook specs netfilter: nf_tables: Sort labels in nft_netdev_hook_alloc() netfilter: nf_tables: Handle NETDEV_CHANGENAME events netfilter: nf_tables: Wrap netdev notifiers netfilter: nf_tables: Respect NETDEV_REGISTER events netfilter: nf_tables: Prepare for handling NETDEV_REGISTER events netfilter: nf_tables: Have a list of nf_hook_ops in nft_hook netfilter: nf_tables: Pass nf_hook_ops to nft_unregister_flowtable_hook() netfilter: nf_tables: Introduce nft_register_flowtable_ops() netfilter: nf_tables: Introduce nft_hook_find_ops{,_rcu}() netfilter: nf_tables: Introduce functions freeing nft_hook objects netfilter: nf_tables: add packets conntrack state to debug trace info netfilter: conntrack: make nf_conntrack_id callable without a module dependency netfilter: nf_dup_netdev: Move the recursion counter struct netdev_xmit netfilter: nft_inner: Use nested-BH locking for nft_pcpu_tun_ctx netfilter: nf_dup{4, 6}: Move duplication check to task_struct netfilter: nft_tunnel: fix geneve_opt dump selftests: netfilter: nft_fib.sh: add type and oif tests with and without VRFs ... ==================== Link: https://patch.msgid.link/20250523132712.458507-1-pablo@netfilter.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-26Merge tag 'linux-can-next-for-6.16-20250522' of ↵Paolo Abeni4-0/+463
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2025-05-22 this is a pull request of 22 patches for net-next/main. The series by Biju Das contains 19 patches and adds RZ/G3E CANFD support to the rcar_canfd driver. The patch by Vincent Mailhol adds a struct data_bittiming_params to group FD parameters as a preparation patch for CAN-XL support. Felix Maurer's patch imports tst-filter from can-tests into the kernel self tests and Vincent Mailhol adds support for physical CAN interfaces. linux-can-next-for-6.16-20250522 * tag 'linux-can-next-for-6.16-20250522' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (22 commits) selftests: can: test_raw_filter.sh: add support of physical interfaces selftests: can: Import tst-filter from can-tests can: dev: add struct data_bittiming_params to group FD parameters can: rcar_canfd: Add RZ/G3E support can: rcar_canfd: Enhance multi_channel_irqs handling can: rcar_canfd: Add external_clk variable to struct rcar_canfd_hw_info can: rcar_canfd: Add sh variable to struct rcar_canfd_hw_info can: rcar_canfd: Add struct rcanfd_regs variable to struct rcar_canfd_hw_info can: rcar_canfd: Add shared_can_regs variable to struct rcar_canfd_hw_info can: rcar_canfd: Add ch_interface_mode variable to struct rcar_canfd_hw_info can: rcar_canfd: Add {nom,data}_bittiming variables to struct rcar_canfd_hw_info can: rcar_canfd: Add max_cftml variable to struct rcar_canfd_hw_info can: rcar_canfd: Add max_aflpn variable to struct rcar_canfd_hw_info can: rcar_canfd: Add rnc_field_width variable to struct rcar_canfd_hw_info can: rcar_canfd: Update RCANFD_GAFLCFG macro can: rcar_canfd: Add rcar_canfd_setrnc() can: rcar_canfd: Drop the mask operation in RCANFD_GAFLCFG_SETRNC macro can: rcar_canfd: Update RCANFD_GERFL_ERR macro can: rcar_canfd: Drop RCANFD_GAFLCFG_GETRNC macro can: rcar_canfd: Use of_get_available_child_by_name() ... ==================== Link: https://patch.msgid.link/20250522084128.501049-1-mkl@pengutronix.de Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-23selftests: netfilter: Torture nftables netdev hooksPhil Sutter2-0/+152
Add a ruleset which binds to various interface names via netdev-family chains and flowtables and massage the notifiers by frequently renaming interfaces to match these names. While doing so: - Keep an 'nft monitor' running in background to receive the notifications - Loop over 'nft list ruleset' to exercise ruleset dump codepath - Have iperf running so the involved chains/flowtables see traffic If supported, also test interface wildcard support separately by creating a flowtable with 'wild*' interface spec and quickly add/remove matching dummy interfaces. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-23selftests: netfilter: nft_fib.sh: add type and oif tests with and without VRFsFlorian Westphal1-27/+365
Replace the existing VRF test with a more comprehensive one. It tests following combinations: - fib type (returns address type, e.g. unicast) - fib oif (route output interface index - both with and without 'iif' keyword (changes result, e.g. 'fib daddr type local' will be true when the destination address is configured on the local machine, but 'fib daddr . iif type local' will only be true when the destination address is configured on the incoming interface. Add all types of addresses to test with for both ipv4 and ipv6: - local address on the incoming interface - local address on another interface - local address on another interface thats part of a vrf - address on another host The ruleset stores obtained results from 'fib' in nftables sets and then queries the sets to check that it has the expected results. Perform one pass while packets are coming in on interface NOT part of a VRF and then again when it was added and make sure fib returns the expected routes and address types for the various addresses in the setup. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-23selftest: af_unix: Test SO_PASSRIGHTS.Kuniyuki Iwashima1-2/+78
scm_rights.c has various patterns of tests to exercise GC. Let's add cases where SO_PASSRIGHTS is disabled. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-05-22selftests: netfilter: move fib vrf test to nft_fib.shFlorian Westphal2-34/+90
It was located in conntrack_vrf.sh because that already had the VRF bits. Lets not add to this and move it to nft_fib.sh where this belongs. No functional changes for the subtest intended. The subtest is limited, it only covered 'fib oif' (route output interface query) when the incoming interface is part of a VRF. Next we can extend it to cover 'fib type' for VRFs and also check fib results when there is an unrelated VRF in same netns. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-22selftests: netfilter: nft_fib.sh: add 'type' mode testsFlorian Westphal1-10/+174
fib can either lookup the interface id/name of the output interface that would be used for the given address, or it can check for the type of the address according to the fib, e.g. local, unicast, multicast and so on. This can be used to e.g. make a locally configured address only reachable through its interface. Example: given eth0:10.1.1.1 and eth1:10.1.2.1 then 'fib daddr type' for 10.1.1.1 arriving on eth1 will be 'local', but 'fib daddr . iif type' is expected to return 'unicast', whereas 'fib daddr' and 'fib daddr . iif' are expected to indicate 'local' if such a packet arrives on eth0. So far nft_fib.sh only covered oif/oifname, not type. Repeat tests both with default and a policy (ip rule) based setup. Also try to run all remaining tests even if a subtest has failed. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-22selftests: netfilter: nft_concat_range.sh: add coverage for 4bit group ↵Florian Westphal1-4/+161
representation Pipapo supports a more compact '4 bit group' format that is chosen when the memory needed for the default exceeds a threshold (2mb). Add coverage for those code paths, the existing tests use small sets that are handled by the default representation. This comes with a test script run-time increase, but I think its ok: normal: 2m35s -> 3m9s debug: 3m24s -> 5m29s (with KSFT_MACHINE_SLOW=yes). Cc: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-21selftests: can: test_raw_filter.sh: add support of physical interfacesVincent Mailhol1-2/+10
Allow the user to specify a physical interface through the $CANIF environment variable. Add a $BITRATE environment variable set with a default value of 500000. If $CANIF is omitted or if it starts with vcan (e.g. vcan1), the test will use the virtual can interface type. Otherwise, it will assume that the provided interface is a physical can interface. For example: CANIF=can1 BITRATE=1000000 ./test_raw_filter.sh will run set the can1 interface with a bitrate of one million and run the tests on it. Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-05-21selftests: can: Import tst-filter from can-testsFelix Maurer4-0/+455
Tests for the can subsystem have been in the can-tests repository[1] so far. Start moving the tests to kernel selftests by importing the current tst-filter test. The test is now named test_raw_filter and is substantially updated to be more aligned with the kernel selftests, follow the coding style, and simplify the validation of received CAN frames. We also include documentation of the test design. The test verifies that the single filters on raw CAN sockets work as expected. We intend to import more tests from can-tests and add additional test cases in the future. The goal of moving the CAN selftests into the tree is to align the tests more closely with the kernel, improve testing of CAN in general, and to simplify running the tests automatically in the various kernel CI systems. [1]: https://github.com/linux-can/can-tests Signed-off-by: Felix Maurer <fmaurer@redhat.com> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://patch.msgid.link/87d289f333cba7bbcc9d69173ea1c320e4b5c3b8.1747833283.git.fmaurer@redhat.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-05-21selftests: net: Fix spellingsSumanth Gavini1-2/+2
Fix "withouth" to "without" Fix "instaces" to "instances" Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it> Link: https://patch.msgid.link/20250517032535.1176351-1-sumanth.gavini@yahoo.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-15selftest/net/ovpn: extend coverage with more test casesAntonio Quartulli5-11/+34
To increase code coverage, extend the ovpn selftests with the following cases: * connect UDP peers using a mix of IPv6 and IPv4 at the transport layer * run full test with tunnel MTU equal to transport MTU (exercising IP layer fragmentation) * ping "LAN IP" served by VPN peer ("LAN behind a client" test case) Signed-off-by: Antonio Quartulli <antonio@openvpn.net>