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test: add msg_zerocopy test 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>
2017-08-04 04:29:45 +08:00
msg_zerocopy
net: Add .gitignore to networking selftests directory. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-20 04:36:12 +08:00
socket
psock_fanout
selftests/net: add packet socket packet_snd test 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>
2018-06-01 00:14:40 +08:00
psock_snd
net: Add .gitignore to networking selftests directory. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-20 04:36:12 +08:00
psock_tpacket
selftests: net: test that listening sockets match on address properly 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>
2018-12-13 05:15:37 +08:00
reuseport_addr_any
soreuseport: BPF selection functional test 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>
2016-01-05 06:41:48 +08:00
reuseport_bpf
soreuseport: BPF selection functional test for TCP 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>
2016-02-11 00:50:41 +08:00
reuseport_bpf_cpu
reuseport, bpf: add test case for bpf_get_numa_node_id 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>
2016-10-21 18:46:34 +08:00
reuseport_bpf_numa
soreuseport: test mixed v4/v6 sockets 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>
2016-04-13 01:11:26 +08:00
reuseport_dualstack
selftest: add a reuseaddr test 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>
2017-09-19 21:51:26 +08:00
reuseaddr_conflict
selftests: net: update .gitignore with missing test 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>
2018-04-23 22:00:50 +08:00
tcp_mmap
selftests: udp gso 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>
2018-04-27 01:42:22 +08:00
udpgso
selftests: udp gso benchmark 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>
2018-04-27 01:42:25 +08:00
udpgso_bench_rx
udpgso_bench_tx
selftests: net: add tcp_inq to gitignore 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>
2018-06-21 06:43:44 +08:00
tcp_inq
selftests/net: add tls to .gitignore 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>
2018-07-26 17:53:58 +08:00
tls
selftests/net: add txring_overwrite 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>
2018-11-25 10:09:26 +08:00
txring_overwrite
selftests/net: add ip_defrag selftest 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>
2018-08-29 02:36:20 +08:00
ip_defrag
selftests/net: SO_TXTIME with ETF and FQ 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>
2019-05-24 01:48:46 +08:00
so_txtime
selftests/net: ipv6 flowlabel 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>
2019-05-28 04:47:51 +08:00
flowlabel
flowlabel_mgr
selftests/net: add TFO key rotation selftest 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>
2019-05-30 00:34:01 +08:00
tcp_fastopen_backup_key