linux.git/tools/testing/selftests/bpf/test_maps.c, branch v5.1

bpf: test_maps: fix possible out of bound access warning

2019-02-06T14:48:43+00:00

When compiling test_maps selftest with GCC-8, it warns that an array
might be indexed with a negative value, which could cause a negative
out of bound access, depending on parameters of the function. This
is the GCC-8 warning:

	gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf -I../../../../include/generated -DHAVE_GENHDR -I../../../include    test_maps.c /home/breno/Devel/linux/tools/testing/selftests/bpf/libbpf.a -lcap -lelf -lrt -lpthread -o /home/breno/Devel/linux/tools/testing/selftests/bpf/test_maps
	In file included from test_maps.c:16:
	test_maps.c: In function ‘run_all_tests’:
	test_maps.c:1079:10: warning: array subscript -1 is below array bounds of ‘pid_t[ + 1]’ [-Warray-bounds]
	   assert(waitpid(pid[i], &status, 0) == pid[i]);
		  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
	test_maps.c:1059:6: warning: array subscript -1 is below array bounds of ‘pid_t[ + 1]’ [-Warray-bounds]
	   pid[i] = fork();
	   ~~~^~~

This patch simply guarantees that the task(s) variables are unsigned,
thus, they could never be a negative number (which they are not in
current code anyway), hence avoiding an out of bound access warning.

Signed-off-by: Breno Leitao 
Signed-off-by: Daniel Borkmann

selftests/bpf: skip sockmap in test_maps if kernel doesn't have support

2019-01-31T09:13:21+00:00

Use recently introduced bpf_probe_map_type() to skip test_sockmap()
if map creation fails. The skipped test is indicated in the output.

Example:

test_sockmap SKIP (unsupported map type BPF_MAP_TYPE_SOCKMAP)
Fork 1024 tasks to 'test_update_delete'
...
test_sockmap SKIP (unsupported map type BPF_MAP_TYPE_SOCKMAP)
Fork 1024 tasks to 'test_update_delete'
...
test_maps: OK, 2 SKIPPED

Signed-off-by: Stanislav Fomichev 
Signed-off-by: Daniel Borkmann

selftests: bpf: remove duplicated include

2019-01-28T23:09:26+00:00

Remove duplicated include.

Signed-off-by: YueHaibing 
Acked-by: Song Liu 
Signed-off-by: Daniel Borkmann

selftests/bpf: fix error printing in test_devmap()

2019-01-01T12:48:59+00:00

As a simple fix, just print the correct map type.

Signed-off-by: Xiaozhou Liu 
Signed-off-by: Daniel Borkmann

bpf: adding tests for map_in_map helpber in libbpf

2018-11-21T22:33:22+00:00

adding test/example of bpf_map__set_inner_map_fd usage

Signed-off-by: Nikita V. Shirokov 
Acked-by: Yonghong Song 
Signed-off-by: Daniel Borkmann

tools: add selftest for BPF_F_ZERO_SEED

2018-11-19T23:53:40+00:00

Check that iterating two separate hash maps produces the same
order of keys if BPF_F_ZERO_SEED is used.

Signed-off-by: Lorenz Bauer 
Signed-off-by: Daniel Borkmann

selftests/bpf: add test cases for queue and stack maps

2018-10-19T20:24:31+00:00

test_maps:
Tests that queue/stack maps are behaving correctly even in corner cases

test_progs:
Tests new ebpf helpers

Signed-off-by: Mauricio Vasquez B 
Acked-by: Song Liu 
Signed-off-by: Alexei Starovoitov

bpf: test_maps, only support ESTABLISHED socks

2018-09-22T00:46:42+00:00

Ensure that sockets added to a sock{map|hash} that is not in the
ESTABLISHED state is rejected.

Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks")
Signed-off-by: John Fastabend 
Acked-by: Yonghong Song 
Signed-off-by: Daniel Borkmann

bpf: test: fix spelling mistake "REUSEEPORT" -> "REUSEPORT"

2018-08-14T17:43:27+00:00

Trivial fix to spelling mistake in error message

Signed-off-by: Colin Ian King 
Acked-by: Alexei Starovoitov 
Signed-off-by: David S. Miller

bpf: test BPF_MAP_TYPE_REUSEPORT_SOCKARRAY

2018-08-10T23:58:46+00:00

This patch adds tests for the new BPF_MAP_TYPE_REUSEPORT_SOCKARRAY.

Signed-off-by: Martin KaFai Lau 
Acked-by: Alexei Starovoitov 
Signed-off-by: Daniel Borkmann