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2020-09-24selftest/net/xfrm: Add test for ipsec tunnelDmitry Safonov
It's an exhaustive testing for ipsec: covering all encryption/ authentication/compression algorithms. The tests are run in two network namespaces, connected by veth interfaces. To make exhaustive testing less time-consuming, the tests are run in parallel tasks, specified by parameter to the selftest. As the patches set adds support for xfrm in compatible tasks, there are tests to check structures that differ in size between 64-bit and 32-bit applications. The selftest doesn't use libnl so that it can be easily compiled as compatible application and don't require compatible .so. Here is a diagram of the selftest: --------------- | selftest | | (parent) | --------------- | | | (pipe) | ---------- / | | \ /------------- / \ -------------\ | /----- -----\ | ---------|----------|----------------|----------|--------- | --------- --------- --------- --------- | | | child | | child | NS A | child | | child | | | --------- --------- --------- --------- | -------|------------|----------------|-------------|------ veth0 veth1 veth2 vethN ---------|------------|----------------|-------------|---------- | ------------ ------------ ------------ ------------ | | | gr.child | | gr.child | NS B | gr.child | | gr.child | | | ------------ ------------ ------------ ------------ | ---------------------------------------------------------------- The parent sends the description of a test (xfrm parameters) to the child, the child and grand child setup a tunnel over veth interface and test it by sending udp packets. Cc: Shuah Khan <shuah@kernel.org> Cc: linux-kselftest@vger.kernel.org Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2020-04-03Merge tag 'spdx-5.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX updates from Greg KH: "Here are three SPDX patches for 5.7-rc1. One fixes up the SPDX tag for a single driver, while the other two go through the tree and add SPDX tags for all of the .gitignore files as needed. Nothing too complex, but you will get a merge conflict with your current tree, that should be trivial to handle (one file modified by two things, one file deleted.) All three of these have been in linux-next for a while, with no reported issues other than the merge conflict" * tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: ASoC: MT6660: make spdxcheck.py happy .gitignore: add SPDX License Identifier .gitignore: remove too obvious comments
2020-03-29selftests: move timestamping selftests to net folderJian Yang
For historical reasons, there are several timestamping selftest targets in selftests/networking/timestamping. Move them to the standard directory for networking tests: selftests/net. Signed-off-by: Jian Yang <jianyang@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25.gitignore: add SPDX License IdentifierMasahiro Yamada
Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12selftests: net: Add SO_REUSEADDR test to check if 4-tuples are fully utilized.Kuniyuki Iwashima
This commit adds a test to check if we can fully utilize 4-tuples for connect() when all ephemeral ports are exhausted. The test program changes the local port range to use only one port and binds two sockets with or without SO_REUSEADDR and SO_REUSEPORT, and with the same EUID or with different EUIDs, then do listen(). We should be able to bind only one socket having both SO_REUSEADDR and SO_REUSEPORT per EUID, which restriction is to prevent unintentional listen(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-02selftests: net: Add FIN_ACK processing order related latency spike testSeongJae Park
This commit adds a test for FIN_ACK process races related reconnection latency spike issues. The issue has described and solved by the previous commit ("tcp: Reduce SYN resend delay if a suspicous ACK is received"). The test program is configured with a server and a client process. The server creates and binds a socket to a port that dynamically allocated, listen on it, and start a infinite loop. Inside the loop, it accepts connection, reads 4 bytes from the socket, and closes the connection. The client is constructed as an infinite loop. Inside the loop, it creates a socket with LINGER and NODELAY option, connect to the server, send 4 bytes data, try read some data from server. After the read() returns, it measure the latency from the beginning of this loop to this point and if the latency is larger than 1 second (spike), print a message. Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: SeongJae Park <sjpark@amazon.de> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2019-10-04selftests/net: add nettest to .gitignoreJakub Kicinski
nettest is missing from gitignore. Fixes: acda655fefae ("selftests: Add nettest") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25selftests/net: add missing gitignores (ipv6_flowlabel)Jakub Kicinski
ipv6_flowlabel and ipv6_flowlabel_mgr are missing from gitignore. Quentin points out that the original commit 3fb321fde22d ("selftests/net: ipv6 flowlabel") did add ignore entries, they are just missing the "ipv6_" prefix. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-30selftests/net: add TFO key rotation selftestJason Baron
Demonstrate how the primary and backup TFO keys can be rotated while minimizing the number of client cookies that are rejected. Signed-off-by: Jason Baron <jbaron@akamai.com> Signed-off-by: Christoph Paasch <cpaasch@apple.com> Acked-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-28selftests/net: ipv6 flowlabelWillem de Bruijn
Test the IPv6 flowlabel control and datapath interfaces: Acquire and release the right to use flowlabels with socket option IPV6_FLOWLABEL_MGR. Then configure flowlabels on send and read them on recv with cmsg IPV6_FLOWINFO. Also verify auto-flowlabel if not explicitly set. This helped identify the issue fixed in commit 95c169251bf73 ("ipv6: invert flowlabel sharing check in process and user mode") Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-24selftests/net: SO_TXTIME with ETF and FQWillem de Bruijn
The SO_TXTIME API enables packet tranmission with delayed delivery. This is currently supported by the ETF and FQ packet schedulers. Evaluate the interface with both schedulers. Install the scheduler and send a variety of packets streams: without delay, with one delayed packet, with multiple ordered delays and with reordering. Verify that packets are released by the scheduler in expected order. The ETF qdisc requires a timestamp in the future on every packet. It needs a delay on the qdisc else the packet is dropped on dequeue for having a delivery time in the past. The test value is experimentally derived. ETF requires clock_id CLOCK_TAI. It checks this base and drops for non-conformance. The FQ qdisc expects clock_id CLOCK_MONOTONIC, the base used by TCP as of commit fb420d5d91c1 ("tcp/fq: move back to CLOCK_MONOTONIC"). Within a flow there is an expecation of ordered delivery, as shown by delivery times of test 4. The FQ qdisc does not require all packets to have timestamps and does not drop for non-conformance. The large (msec) delays are chosen to avoid flakiness. Output: SO_TXTIME ipv6 clock monotonic payload:a delay:28 expected:0 (us) SO_TXTIME ipv4 clock monotonic payload:a delay:38 expected:0 (us) SO_TXTIME ipv6 clock monotonic payload:a delay:40 expected:0 (us) SO_TXTIME ipv4 clock monotonic payload:a delay:33 expected:0 (us) SO_TXTIME ipv6 clock monotonic payload:a delay:10120 expected:10000 (us) SO_TXTIME ipv4 clock monotonic payload:a delay:10102 expected:10000 (us) [.. etc ..] OK. All tests passed Changes v1->v2: update commit message output Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-14selftests: net: test that listening sockets match on address properlyPeter Oskolkov
This patch adds a selftest that verifies that a socket listening on a specific address is chosen in preference over sockets that listen on any address. The test covers UDP/UDP6/TCP/TCP6. It is based on, and similar to, reuseport_dualstack.c selftest. Signed-off-by: Peter Oskolkov <posk@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-24selftests/net: add txring_overwriteWillem de Bruijn
Packet sockets with PACKET_TX_RING send skbs with user data in frags. Before commit 5cd8d46ea156 ("packet: copy user buffers before orphan or clone") ring slots could be released prematurely, possibly allowing a process to overwrite data still in flight. This test opens two packet sockets, one to send and one to read. The sender has a tx ring of one slot. It sends two packets with different payload, then reads both and verifies their payload. Before the above commit, both receive calls return the same data as the send calls use the same buffer. From the commit, the clone needed for looping onto a packet socket triggers an skb_copy_ubufs to create a private copy. The separate sends each arrive correctly. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-29selftests/net: add ip_defrag selftestPeter Oskolkov
This test creates a raw IPv4 socket, fragments a largish UDP datagram and sends the fragments out of order. Then repeats in a loop with different message and fragment lengths. Then does the same with overlapping fragments (with overlapping fragments the expectation is that the recv times out). Tested: root@<host># time ./ip_defrag.sh ipv4 defrag PASS ipv4 defrag with overlaps PASS real 1m7.679s user 0m0.628s sys 0m2.242s A similar test for IPv6 is to follow. Signed-off-by: Peter Oskolkov <posk@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26selftests/net: add tls to .gitignoreAnders Roxell
Add the tls binary to .gitignore Fixes: 7f657d5bf507 ("selftests: tls: add selftests for TLS sockets") Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-21selftests: net: add tcp_inq to gitignoreAnders Roxell
sha: 702353b538f5 ("selftest: add test for TCP_INQ") forgot to add tcp_inq to .gitignore. Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-04selftests/net: add packet socket packet_snd testWillem de Bruijn
Add regression tests for PF_PACKET transmission using packet_snd. The TPACKET ring interface has tests for transmission and reception. This is an initial stab at the same for the send call based interface. Packets are sent over loopback, then read twice. The entire packet is read from another packet socket and compared. The packet is also verified to arrive at a UDP socket for protocol conformance. The test sends a packet over loopback, testing the following options (not the full cross-product): - SOCK_DGRAM - SOCK_RAW - vlan tag - qdisc bypass - bind() and sendto() - virtio_net_hdr - csum offload (NOT actual csum feature, ignored on loopback) - gso Besides these basic functionality tests, the test runs from a set of bounds checks, positive and negative. Running over loopback, which has dev->min_header_len, it cannot generate variable length hhlen. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-26selftests: udp gso benchmarkWillem de Bruijn
Send udp data between a source and sink, optionally with udp gso. The two processes are expected to be run on separate hosts. A script is included that runs them together over loopback in a single namespace for functionality testing. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-26selftests: udp gsoWillem de Bruijn
Validate udp gso, including edge cases (such as min/max gso sizes). Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-23selftests: net: update .gitignore with missing testAnders Roxell
Fixes: 192dc405f308 ("selftests: net: add tcp_mmap program") Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-19selftest: add a reuseaddr testJosef Bacik
This is to test for a regression introduced by b9470c27607b ("inet: kill smallest_size and smallest_port") which introduced a problem with reuseaddr and bind conflicts. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-03test: add msg_zerocopy testWillem de Bruijn
Introduce regression test for msg_zerocopy feature. Send traffic from one process to another with and without zerocopy. Evaluate tcp, udp, raw and packet sockets, including variants - udp: corking and corking with mixed copy/zerocopy calls - raw: with and without hdrincl - packet: at both raw and dgram level Test on both ipv4 and ipv6, optionally with ethtool changes to disable scatter-gather, tx checksum or tso offload. All of these can affect zerocopy behavior. The regression test can be run on a single machine if over a veth pair. Then skb_orphan_frags_rx must be modified to be identical to skb_orphan_frags to allow forwarding zerocopy locally. The msg_zerocopy.sh script will setup the veth pair in network namespaces and run all tests. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-22reuseport, bpf: add test case for bpf_get_numa_node_idDaniel Borkmann
The test case is very similar to reuseport_bpf_cpu, only that here we select socket members based on current numa node id. # numactl -H available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 12 13 14 15 16 17 node 0 size: 128867 MB node 0 free: 120080 MB node 1 cpus: 6 7 8 9 10 11 18 19 20 21 22 23 node 1 size: 96765 MB node 1 free: 87504 MB node distances: node 0 1 0: 10 20 1: 20 10 # ./reuseport_bpf_numa ---- IPv4 UDP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv6 UDP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv4 TCP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv6 TCP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 SUCCESS Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14soreuseport: test mixed v4/v6 socketsCraig Gallek
Test to validate the behavior of SO_REUSEPORT sockets that are created with both AF_INET and AF_INET6. See the commit prior to this for a description of this behavior. Signed-off-by: Craig Gallek <kraig@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-11soreuseport: BPF selection functional test for TCPCraig Gallek
Unfortunately the existing test relied on packet payload in order to map incoming packets to sockets. In order to get this to work with TCP, TCP_FASTOPEN needed to be used. Since the fast open path is slightly different than the standard TCP path, I created a second test which sends to reuseport group members based on receiving cpu core id. This will probably serve as a better real-world example use as well. Signed-off-by: Craig Gallek <kraig@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-04soreuseport: BPF selection functional testCraig Gallek
This program will build classic and extended BPF programs and validate the socket selection logic when used with SO_ATTACH_REUSEPORT_CBPF and SO_ATTACH_REUSEPORT_EBPF. It also validates the re-programing flow and several edge cases. Signed-off-by: Craig Gallek <kraig@google.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19net: Add .gitignore to networking selftests directory.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
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