linux.git/tools/lib/bpf/bpf.c, branch v4.12

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: 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

scripts/spelling.txt: add "overrided" pattern and fix typo instances

2017-02-28T02:43:47+00:00

Fix typos and add the following to the scripts/spelling.txt:

  overrided||overridden

Link: http://lkml.kernel.org/r/1481573103-11329-22-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-02-17T00:34:01+00:00

bpf: Remove redundant ifdef

2017-02-15T17:14:54+00:00

Remove a useless ifdef __NR_bpf as requested by Wang Nan.

Inline one-line static functions as it was in the bpf_sys.h file.

Signed-off-by: Mickaël Salaün 
Cc: Alexei Starovoitov 
Cc: Daniel Borkmann 
Cc: David S. Miller 
Cc: Wang Nan 
Link: https://lkml.kernel.org/r/828ab1ff-4dcf-53ff-c97b-074adb895006@huawei.com
Acked-by: Wang Nan 
Signed-off-by: David S. Miller

bpf: introduce BPF_F_ALLOW_OVERRIDE flag

2017-02-13T02:52:19+00:00

If BPF_F_ALLOW_OVERRIDE flag is used in BPF_PROG_ATTACH command
to the given cgroup the descendent cgroup will be able to override
effective bpf program that was inherited from this cgroup.
By default it's not passed, therefore override is disallowed.

Examples:
1.
prog X attached to /A with default
prog Y fails to attach to /A/B and /A/B/C
Everything under /A runs prog X

2.
prog X attached to /A with allow_override.
prog Y fails to attach to /A/B with default (non-override)
prog M attached to /A/B with allow_override.
Everything under /A/B runs prog M only.

3.
prog X attached to /A with allow_override.
prog Y fails to attach to /A with default.
The user has to detach first to switch the mode.

In the future this behavior may be extended with a chain of
non-overridable programs.

Also fix the bug where detach from cgroup where nothing is attached
was not throwing error. Return ENOENT in such case.

Add several testcases and adjust libbpf.

Fixes: 3007098494be ("cgroup: add support for eBPF programs")
Signed-off-by: Alexei Starovoitov 
Acked-by: Daniel Borkmann 
Acked-by: Tejun Heo 
Acked-by: Daniel Mack 
Signed-off-by: David S. Miller

bpf: Remove bpf_sys.h from selftests

2017-02-10T20:56:08+00:00

Add require dependency headers.

Signed-off-by: Mickaël Salaün 
Cc: Alexei Starovoitov 
Cc: Daniel Borkmann 
Cc: Shuah Khan 
Signed-off-by: David S. Miller

bpf: Use bpf_map_get_next_key() from the library

2017-02-10T20:56:07+00:00

Replace bpf_map_next_key() with bpf_map_get_next_key() calls.

Signed-off-by: Mickaël Salaün 
Cc: Alexei Starovoitov 
Cc: Daniel Borkmann 
Cc: Shuah Khan 
Signed-off-by: David S. Miller