talos-op-linux/samples/sockmap, branch v4.17

bpf: sockmap sample use clang flag, -target bpf

2018-04-23T21:42:21+00:00

Per Documentation/bpf/bpf_devel_QA.txt add the -target flag to the sockmap Makefile. Relevant text quoted here, Otherwise, you can use bpf target. Additionally, you _must_ use bpf target when: - Your program uses data structures with pointer or long / unsigned long types that interface with BPF helpers or context data structures. Access into these structures is verified by the BPF verifier and may result in verification failures if the native architecture is not aligned with the BPF architecture, e.g. 64-bit. An example of this is BPF_PROG_TYPE_SK_MSG require '-target bpf' Fixes: 69e8cc134bcb ("bpf: sockmap sample program") Signed-off-by: John Fastabend Acked-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann

bpf: sockmap, more BPF_SK_SKB_STREAM_VERDICT tests

2018-03-29T22:09:43+00:00

Add BPF_SK_SKB_STREAM_VERDICT tests for ingress hook. While we do this also bring stream tests in-line with MSG based testing. A map for skb options is added for userland to push options at BPF programs. Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann

bpf: sockmap, add BPF_F_INGRESS tests

2018-03-29T22:09:43+00:00

Add a set of tests to verify ingress flag in redirect helpers works correctly with various msg sizes. Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann

bpf: sockmap test script

2018-03-19T20:14:41+00:00

This adds the test script I am currently using to validate the latest sockmap changes. Shortly sockmap will be ported to selftests and these will be run from the infrastructure there. Until then add the script here so we have a coverage checklist when porting into selftests. Signed-off-by: John Fastabend Acked-by: David S. Miller Signed-off-by: Daniel Borkmann

bpf: sockmap sample test for bpf_msg_pull_data

2018-03-19T20:14:41+00:00

This adds an option to test the msg_pull_data helper. This uses two options txmsg_start and txmsg_end to let the user specify start and end bytes to pull. The options can be used with txmsg_apply, txmsg_cork options as well as with any of the basic tests, txmsg, txmsg_redir and txmsg_drop (plus noisy variants) to run pull_data inline with those tests. By giving user direct control over the variables we can easily do negative testing as well as positive tests. Signed-off-by: John Fastabend Acked-by: David S. Miller Signed-off-by: Daniel Borkmann

bpf: sockmap add SK_DROP tests

2018-03-19T20:14:41+00:00

Add tests for SK_DROP. Signed-off-by: John Fastabend Acked-by: David S. Miller Signed-off-by: Daniel Borkmann

bpf: sockmap sample support for bpf_msg_cork_bytes()

2018-03-19T20:14:40+00:00

Add sample application support for the bpf_msg_cork_bytes helper. This lets the user specify how many bytes each verdict should apply to. Similar to apply_bytes() tests these can be run as a stand-alone test when used without other options or inline with other tests by using the txmsg_cork option along with any of the basic tests txmsg, txmsg_redir, txmsg_drop. Signed-off-by: John Fastabend Acked-by: David S. Miller Signed-off-by: Daniel Borkmann

bpf: sockmap, add sample option to test apply_bytes helper

2018-03-19T20:14:40+00:00

This adds an option to test the apply_bytes helper. This option lets the user specify an int on the command line specifying how much data each verdict should apply to. When this is set a map entry is set with the bytes input by the user and then the specified program --txmsg or --txmsg_redir will use the value and set the applied data. If no other option is set then a default --txmsg_apply program is run. This program will drop pkts if an error is detected on the bytes map lookup. Useful to verify the map lookup and apply helper are working and causing a hard error if it is not. Signed-off-by: John Fastabend Acked-by: David S. Miller Signed-off-by: Daniel Borkmann

bpf: sockmap sample, add data verification option

2018-03-19T20:14:40+00:00

To verify data is not being dropped or corrupted this adds an option to verify test-patterns on recv. Signed-off-by: John Fastabend Acked-by: David S. Miller Signed-off-by: Daniel Borkmann

bpf: sockmap sample, add sendfile test

2018-03-19T20:14:40+00:00

To exercise TX ULP sendpage implementation we need a test that does a sendfile. Add sendfile test option here. Signed-off-by: John Fastabend Acked-by: David S. Miller Signed-off-by: Daniel Borkmann