talos-obmc-linux/tools/lib/bpf, branch dev-4.13

tools lib bpf: improve warning

2017-08-21T02:49:51+00:00

Signed-off-by: Eric Leblond Acked-by: Daniel Borkmann Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller

bpf, s390: fix build for libbpf and selftest suite

2017-08-04T18:18:01+00:00

The BPF feature test as well as libbpf is missing the __NR_bpf define for s390 and currently refuses to compile (selftest suite depends on libbpf as well). Similar issue was fixed some time ago via b0c47807d31d ("bpf: Add sparc support to tools and samples."), just do the same and add definitions. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller

bpf: don't zero out the info struct in bpf_obj_get_info_by_fd()

2017-07-27T00:02:52+00:00

The buffer passed to bpf_obj_get_info_by_fd() should be initialized to zeros. Kernel will enforce that to guarantee we can safely extend info structures in the future. Making the bpf_obj_get_info_by_fd() call in libbpf perform the zeroing is problematic, however, since some members of the info structures may need to be initialized by the callers (for instance pointers to buffers to which kernel is to dump translated and jited images). Remove the zeroing and fix up the in-tree callers before any kernel has been released with this code. As Daniel points out this seems to be the intended operation anyway, since commit 95b9afd3987f ("bpf: Test for bpf ID") is itself setting the buffer pointers before calling bpf_obj_get_info_by_fd(). Signed-off-by: Jakub Kicinski Acked-by: Daniel Borkmann Signed-off-by: David S. Miller

bpf: allow to specify log level and reduce it for test_verifier

2017-07-20T22:20:27+00:00

For the test_verifier case, it's quite hard to parse log level 2 to figure out what's causing an issue when used to log level 1. We do want to use bpf_verify_program() in order to simulate some of the tests with strict alignment. So just add an argument to pass the level and put it to 1 for test_verifier. Signed-off-by: Daniel Borkmann Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller

bpf: Test for bpf ID

2017-06-06T19:41:24+00:00

Add test to exercise the bpf_prog/map id generation, bpf_(prog|map)_get_next_id(), bpf_(prog|map)_get_fd_by_id() and bpf_get_obj_info_by_fd(). Signed-off-by: Martin KaFai Lau Acked-by: Alexei Starovoitov Acked-by: Daniel Borkmann Signed-off-by: David S. Miller

bpf: Add bpf_verify_program() to the library.

2017-05-11T18:19:00+00:00

This allows a test case to load a BPF program and unconditionally acquire the verifier log. It also allows specification of the strict alignment flag. Signed-off-by: David S. Miller Acked-by: Daniel Borkmann

bpf: Add sparc support to tools and samples.

2017-04-22T20:01:52+00:00

Signed-off-by: David S. Miller Acked-by: Daniel Borkmann

tools/lib/bpf: expose bpf_program__set_type()

2017-04-01T19:45:57+00:00

expose bpf_program__set_type() to set program type Signed-off-by: Alexei Starovoitov Acked-by: Daniel Borkmann Acked-by: Martin KaFai Lau Signed-off-by: David S. Miller

tools/lib/bpf: add support for BPF_PROG_TEST_RUN command

2017-04-01T19:45:57+00:00

add support for BPF_PROG_TEST_RUN command to libbpf.a Signed-off-by: Alexei Starovoitov Acked-by: Daniel Borkmann Acked-by: Martin KaFai Lau Acked-by: Wang Nan Signed-off-by: David S. Miller

bpf: Add tests for map-in-map

2017-03-22T22:45:45+00:00

Test cases for array of maps and hash of maps. Signed-off-by: Martin KaFai Lau Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller