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2019-03-22selftests: bpf: tc-bpf flow shaping with EDTPeter Oskolkov1-0/+109
Add a small test that shows how to shape a TCP flow in tc-bpf with EDT and ECN. Signed-off-by: Peter Oskolkov <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-22selftests/bpf: convert bpf tunnel test to encap modesWillem de Bruijn1-4/+15
Make the tests correctly annotate skbs with tunnel metadata. This makes the gso tests succeed. Enable them. Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-22selftests/bpf: convert bpf tunnel test to BPF_F_ADJ_ROOM_FIXED_GSOWillem de Bruijn1-3/+8
Lower route MTU to ensure packets fit in device MTU after encap, then skip the gso_size changes. Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-22selftests/bpf: convert bpf tunnel test to BPF_ADJ_ROOM_MACWillem de Bruijn1-22/+3
Avoid moving the network layer header when prefixing tunnel headers. This avoids an explicit call to bpf_skb_store_bytes and an implicit move of the network header bytes in bpf_skb_adjust_room. Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-22selftests/bpf: extend bpf tunnel test with greWillem de Bruijn1-39/+109
GRE is a commonly used protocol. Add GRE cases for both IPv4 and IPv6. It also inserts different sized headers, which can expose some unexpected edge cases. Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-22selftests/bpf: expand bpf tunnel test to ipv6Willem de Bruijn1-18/+98
The test only uses ipv4 so far, expand to ipv6. This is mostly a boilerplate near copy of the ipv4 path. Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-22selftests/bpf: expand bpf tunnel test with decapWillem de Bruijn1-0/+31
The bpf tunnel test encapsulates using bpf, then decapsulates using a standard tunnel device to verify correctness. Once encap is verified, also test decap, by replacing the tunnel device on decap with another bpf program. Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-22selftests/bpf: bpf tunnel encap testWillem de Bruijn1-0/+83
Validate basic tunnel encapsulation using ipip. Set up two namespaces connected by veth. Connect a client and server. Do this with and without bpf encap. Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-21selftests/bpf: add tests for bpf_tcp_check_syncookie and bpf_skc_lookup_tcpLorenz Bauer1-0/+129
Add tests which verify that the new helpers work for both IPv4 and IPv6, by forcing SYN cookies to always on. Use a new network namespace to avoid clobbering the global SYN cookie settings. Signed-off-by: Lorenz Bauer <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-03-13bpf: Add an example for bpf_get_listener_sockMartin KaFai Lau1-16/+72
This patch adds an example in using the new helper bpf_get_listener_sock(). Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-02-27tools/bpf: selftests: add map lookup to test_map_in_map bpf progYonghong Song1-0/+4
The bpf_map_lookup_elem is added in the bpf program. Without previous patch, the test change will trigger the following error: $ ./test_maps ... ; value_p = bpf_map_lookup_elem(map, &key); 20: (bf) r1 = r7 21: (bf) r2 = r8 22: (85) call bpf_map_lookup_elem#1 ; if (!value_p || *value_p != 123) 23: (15) if r0 == 0x0 goto pc+16 R0=map_value(id=2,off=0,ks=4,vs=4,imm=0) R6=inv1 R7=map_ptr(id=0,off=0,ks=4,vs=4,imm=0) R8=fp-8,call_-1 R10=fp0,call_-1 fp-8=mmmmmmmm ; if (!value_p || *value_p != 123) 24: (61) r1 = *(u32 *)(r0 +0) R0=map_value(id=2,off=0,ks=4,vs=4,imm=0) R6=inv1 R7=map_ptr(id=0,off=0,ks=4,vs=4,imm=0) R8=fp-8,call_-1 R10=fp0,call_-1 fp-8=mmmmmmmm bpf_spin_lock cannot be accessed directly by load/store With the kernel fix in the previous commit, the error goes away. Signed-off-by: Yonghong Song <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-02-13selftests: bpf: add test_lwt_ip_encap selftestPeter Oskolkov1-0/+85
This patch adds a bpf self-test to cover BPF_LWT_ENCAP_IP mode in bpf_lwt_push_encap. Covered: - encapping in LWT_IN and LWT_XMIT - IPv4 and IPv6 A follow-up patch will add GSO and VRF-enabled tests. Signed-off-by: Peter Oskolkov <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-02-11selftests: bpf: centre kernel bpf objects under new subdir "progs"Jiong Wang49-0/+6526
At the moment, all kernel bpf objects are listed under BPF_OBJ_FILES. Listing them manually sometimes causing patch conflict when people are adding new testcases simultaneously. It is better to centre all the related source files under a subdir "progs", then auto-generate the object file list. Suggested-by: Alexei Starovoitov <[email protected]> Reviewed-by: Jakub Kicinski <[email protected]> Signed-off-by: Jiong Wang <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
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