kernel/linux.git/tools/lib/bpf/libbpf.h, branch v4.18.2

bpf: Replace [u]int32_t and [u]int64_t in libbpf

2018-07-25T04:57:55+00:00

This patch replaces [u]int32_t and [u]int64_t usage with __[su]32 and __[su]64. The same change goes for [u]int16_t and [u]int8_t. Fixes: 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf") Signed-off-by: Martin KaFai Lau Acked-by: Yonghong Song Signed-off-by: Daniel Borkmann

bpf: btf: Add tests for the btf uapi changes

2018-05-23T10:03:32+00:00

This patch does the followings: 1. Modify libbpf and test_btf to reflect the uapi changes in btf 2. Add test for the btf_header changes 3. Add tests for array->index_type 4. Add err_str check to the tests 5. Fix a 4 bytes hole in "struct test #1" by swapping "m" and "n" Signed-off-by: Martin KaFai Lau Signed-off-by: Daniel Borkmann

libbpf: add ifindex to enable offload support

2018-05-16T22:54:26+00:00

BPF programs currently can only be offloaded using iproute2. This patch will allow programs to be offloaded using libbpf calls. Signed-off-by: David Beckett Reviewed-by: Jakub Kicinski Signed-off-by: Daniel Borkmann

tools: bpf: improve comments in libbpf.h

2018-05-10T23:40:52+00:00

Fix spelling mistakes, improve and clarify the language of comments in libbpf.h. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann

tools: bpf: move the event reading loop to libbpf

2018-05-10T23:40:52+00:00

There are two copies of event reading loop - in bpftool and trace_helpers "library". Consolidate them and move the code to libbpf. Return codes from trace_helpers are kept, but renamed to include LIBBPF prefix. Suggested-by: Alexei Starovoitov Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann

bpf: sockmap, add selftests

2018-04-24T22:06:20+00:00

This adds a new test program test_sockmap which is the old sample sockmap program. By moving the sample program here we can now run it as part of the self tests suite. To support this a populate_progs() routine is added to load programs and maps which was previously done with load_bpf_file(). This is needed because self test libs do not provide a similar routine. Also we now use the cgroup_helpers routines to manage cgroup use instead of manually creating one and supplying it to the CLI. Notice we keep the CLI around though because it is useful for dbg and specialized testing. To run use ./test_sockmap and the result should be, Summary 660 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann

bpf: btf: Add BTF support to libbpf

2018-04-19T19:46:25+00:00

If the ".BTF" elf section exists, libbpf will try to create a btf_fd (through BPF_BTF_LOAD). If that fails, it will still continue loading the bpf prog/map without the BTF. If the bpf_object has a BTF loaded, it will create a map with the btf_fd. libbpf will try to figure out the btf_key_id and btf_value_id of a map by finding the BTF type with name "_key" and "_value". If they cannot be found, it will continue without using the BTF. Signed-off-by: Martin KaFai Lau Acked-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann

libbpf: Type functions for raw tracepoints

2018-04-18T12:39:24+00:00

Add missing pieces for BPF_PROG_TYPE_RAW_TRACEPOINT in libbpf: * is- and set- functions; * support guessing prog type. Signed-off-by: Andrey Ignatov Signed-off-by: Daniel Borkmann

libbpf: Support expected_attach_type at prog load

2018-03-31T00:15:05+00:00

Support setting `expected_attach_type` at prog load time in both `bpf/bpf.h` and `bpf/libbpf.h`. Since both headers already have API to load programs, new functions are added not to break backward compatibility for existing ones: * `bpf_load_program_xattr()` is added to `bpf/bpf.h`; * `bpf_prog_load_xattr()` is added to `bpf/libbpf.h`. Both new functions accept structures, `struct bpf_load_program_attr` and `struct bpf_prog_load_attr` correspondingly, where new fields can be added in the future w/o changing the API. Standard `_xattr` suffix is used to name the new API functions. Since `bpf_load_program_name()` is not used as heavily as `bpf_load_program()`, it was removed in favor of more generic `bpf_load_program_xattr()`. Signed-off-by: Andrey Ignatov Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann

libbpf: add missing SPDX-License-Identifier

2018-02-03T01:53:48+00:00

Signed-off-by: Eric Leblond Acked-by: Alexei Starovoitov Signed-off-by: Alexei Starovoitov