linux.git/tools/testing/selftests/bpf, branch v5.2-rc2 Linux kernel source tree selftests/bpf: fix bpf_get_current_task 2019-05-17T11:19:30+00:00 Alexei Starovoitov ast@kernel.org 2019-05-17T04:34:11+00:00 7ed4b4e60bb1dd3df7a45dfbde3a96efce9df7eb Fix bpf_get_current_task() declaration. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> 
Fix bpf_get_current_task() declaration.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
selftests/bpf: add test_sysctl and map_tests/tests.h to .gitignore 2019-05-16T18:41:31+00:00 Stanislav Fomichev sdf@google.com 2019-05-16T16:46:57+00:00 bca844a8c92502b2aa5bd50a9094eaf01a1710c0 Missing files are: * tools/testing/selftests/bpf/map_tests/tests.h - autogenerated * tools/testing/selftests/bpf/test_sysctl - binary Fixes: 51a0e301a563 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps") Fixes: 1f5fa9ab6e2e ("selftests/bpf: Test BPF_CGROUP_SYSCTL") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> 
Missing files are:
* tools/testing/selftests/bpf/map_tests/tests.h - autogenerated
* tools/testing/selftests/bpf/test_sysctl - binary

Fixes: 51a0e301a563 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps")
Fixes: 1f5fa9ab6e2e ("selftests/bpf: Test BPF_CGROUP_SYSCTL")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
selftests/bpf: add prog detach to flow_dissector test 2019-05-15T23:33:33+00:00 Stanislav Fomichev sdf@google.com 2019-05-14T21:12:34+00:00 3d21b6525caeae45f08e2d3a07ddfdef64882b8b In case we are not running in a namespace (which we don't do by default), let's try to detach the bpf program that we use for eth_get_headlen tests. Fixes: 0905beec9f52 ("selftests/bpf: run flow dissector tests in skb-less mode") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> 
In case we are not running in a namespace (which we don't do by default),
let's try to detach the bpf program that we use for eth_get_headlen tests.

Fixes: 0905beec9f52 ("selftests/bpf: run flow dissector tests in skb-less mode")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
selftests/bpf: add missing \n to flow_dissector CHECK errors 2019-05-15T23:33:33+00:00 Stanislav Fomichev sdf@google.com 2019-05-14T21:12:33+00:00 a9047734eb47bea615826d4b1733526b3a867dbb Otherwise, in case of an error, everything gets mushed together. Fixes: a5cb33464e53 ("selftests/bpf: make flow dissector tests more extensible") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> 
Otherwise, in case of an error, everything gets mushed together.

Fixes: a5cb33464e53 ("selftests/bpf: make flow dissector tests more extensible")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
bpf: test ref bit from data path and add new tests for syscall path 2019-05-14T17:47:29+00:00 Daniel Borkmann daniel@iogearbox.net 2019-05-13T23:18:57+00:00 d2baab62a1434d3f81ce83e82cbc53e7f2843bbc The test_lru_map is relying on marking the LRU map entry via regular BPF map lookup from system call side. This is basically for simplicity reasons. Given we fixed marking entries in that case, the test needs to be fixed as well. Here we add a small drop-in replacement to retain existing behavior for the tests by marking out of the BPF program and transferring the retrieved value out via temporary map. This also adds new test cases to track the new behavior where two elements are marked, one via system call side and one via program side, where the next update then evicts the key looked up only from system call side. # ./test_lru_map nr_cpus:8 test_lru_sanity0 (map_type:9 map_flags:0x0): Pass test_lru_sanity1 (map_type:9 map_flags:0x0): Pass test_lru_sanity2 (map_type:9 map_flags:0x0): Pass test_lru_sanity3 (map_type:9 map_flags:0x0): Pass test_lru_sanity4 (map_type:9 map_flags:0x0): Pass test_lru_sanity5 (map_type:9 map_flags:0x0): Pass test_lru_sanity7 (map_type:9 map_flags:0x0): Pass test_lru_sanity8 (map_type:9 map_flags:0x0): Pass test_lru_sanity0 (map_type:10 map_flags:0x0): Pass test_lru_sanity1 (map_type:10 map_flags:0x0): Pass test_lru_sanity2 (map_type:10 map_flags:0x0): Pass test_lru_sanity3 (map_type:10 map_flags:0x0): Pass test_lru_sanity4 (map_type:10 map_flags:0x0): Pass test_lru_sanity5 (map_type:10 map_flags:0x0): Pass test_lru_sanity7 (map_type:10 map_flags:0x0): Pass test_lru_sanity8 (map_type:10 map_flags:0x0): Pass test_lru_sanity0 (map_type:9 map_flags:0x2): Pass test_lru_sanity4 (map_type:9 map_flags:0x2): Pass test_lru_sanity6 (map_type:9 map_flags:0x2): Pass test_lru_sanity7 (map_type:9 map_flags:0x2): Pass test_lru_sanity8 (map_type:9 map_flags:0x2): Pass test_lru_sanity0 (map_type:10 map_flags:0x2): Pass test_lru_sanity4 (map_type:10 map_flags:0x2): Pass test_lru_sanity6 (map_type:10 map_flags:0x2): Pass test_lru_sanity7 (map_type:10 map_flags:0x2): Pass test_lru_sanity8 (map_type:10 map_flags:0x2): Pass Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> 
The test_lru_map is relying on marking the LRU map entry via regular
BPF map lookup from system call side. This is basically for simplicity
reasons. Given we fixed marking entries in that case, the test needs
to be fixed as well. Here we add a small drop-in replacement to retain
existing behavior for the tests by marking out of the BPF program and
transferring the retrieved value out via temporary map. This also adds
new test cases to track the new behavior where two elements are marked,
one via system call side and one via program side, where the next update
then evicts the key looked up only from system call side.

  # ./test_lru_map
  nr_cpus:8

  test_lru_sanity0 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity1 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity2 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity3 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity4 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity5 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity7 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity8 (map_type:9 map_flags:0x0): Pass

  test_lru_sanity0 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity1 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity2 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity3 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity4 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity5 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity7 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity8 (map_type:10 map_flags:0x0): Pass

  test_lru_sanity0 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity4 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity6 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity7 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity8 (map_type:9 map_flags:0x2): Pass

  test_lru_sanity0 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity4 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity6 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity7 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity8 (map_type:10 map_flags:0x2): Pass

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
selftests: bpf: Add files generated after build to .gitignore 2019-05-12T23:16:37+00:00 Kelsey Skunberg skunberg.kelsey@gmail.com 2019-05-12T07:29:18+00:00 ff1f28c03f6a7cb5ee5802288258c2fc07ed9b07 The following files are generated after building /selftests/bpf/ and should be added to .gitignore: - libbpf.pc - libbpf.so.* Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> 
The following files are generated after building /selftests/bpf/ and
should be added to .gitignore:

	- libbpf.pc
	- libbpf.so.*

Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
bpf: add various test cases for backward jumps 2019-05-12T23:08:55+00:00 Daniel Borkmann daniel@iogearbox.net 2019-05-10T22:51:33+00:00 9858381253acad69a4538a448eb9aa674c4f70d6 Add a couple of tests to make sure branch(/call) offset adjustments are correctly performed. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> 
Add a couple of tests to make sure branch(/call) offset adjustments
are correctly performed.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
selftests: bpf: initialize bpf_object pointers where needed 2019-05-09T22:53:56+00:00 Lorenz Bauer lmb@cloudflare.com 2019-05-08T16:49:32+00:00 07b619919d3d5401adc9bc6b79dcf12cc2c6d485 There are a few tests which call bpf_object__close on uninitialized bpf_object*, which may segfault. Explicitly zero-initialise these pointers to avoid this. Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> 
There are a few tests which call bpf_object__close on uninitialized
bpf_object*, which may segfault. Explicitly zero-initialise these pointers
to avoid this.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-08T00:22:09+00:00 David S. Miller davem@davemloft.net 2019-05-08T00:22:09+00:00 a9e41a529681b38087c91ebc0bb91e12f510ca2d Minor conflict with the DSA legacy code removal. Signed-off-by: David S. Miller <davem@davemloft.net> 
Minor conflict with the DSA legacy code removal.

Signed-off-by: David S. Miller <davem@davemloft.net>
selftests/bpf: set RLIMIT_MEMLOCK properly for test_libbpf_open.c 2019-05-05T06:23:51+00:00 Yonghong Song yhs@fb.com 2019-04-29T23:59:38+00:00 6cea33701eb024bc6c920ab83940ee22afd29139 Test test_libbpf.sh failed on my development server with failure -bash-4.4$ sudo ./test_libbpf.sh [0] libbpf: Error in bpf_object__probe_name():Operation not permitted(1). Couldn't load basic 'r0 = 0' BPF program. test_libbpf: failed at file test_l4lb.o selftests: test_libbpf [FAILED] -bash-4.4$ The reason is because my machine has 64KB locked memory by default which is not enough for this program to get locked memory. Similar to other bpf selftests, let us increase RLIMIT_MEMLOCK to infinity, which fixed the issue. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> 
Test test_libbpf.sh failed on my development server with failure
  -bash-4.4$ sudo ./test_libbpf.sh
  [0] libbpf: Error in bpf_object__probe_name():Operation not permitted(1).
      Couldn't load basic 'r0 = 0' BPF program.
  test_libbpf: failed at file test_l4lb.o
  selftests: test_libbpf [FAILED]
  -bash-4.4$

The reason is because my machine has 64KB locked memory by default which
is not enough for this program to get locked memory.
Similar to other bpf selftests, let us increase RLIMIT_MEMLOCK
to infinity, which fixed the issue.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>