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selftests: bpf: Fix detach from sockmap tests 

commit f43cb0d672 upstream.

Fix sockmap tests which rely on old bpf_prog_dispatch behaviour.
In the first case, the tests check that detaching without giving
a program succeeds. Since these are not the desired semantics,
invert the condition. In the second case, the clean up code doesn't
supply the necessary program fds.

Fixes: bb0de3131f ("bpf: sockmap: Require attach_bpf_fd when detaching a program")
Reported-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20200709115151.75829-1-lmb@cloudflare.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Lorenz Bauer 2020-07-09 12:51:51 +01:00 committed by Greg Kroah-Hartman
parent c776104353
commit 9fe975acb5
1 changed files with 6 additions and 6 deletions
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12
tools/testing/selftests/bpf/test_maps.c
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@ -793,19 +793,19 @@ static void test_sockmap(unsigned int tasks, void *data)
}
err = bpf_prog_detach(fd, BPF_SK_SKB_STREAM_PARSER);
if (err) {
if (!err) {
printf("Failed empty parser prog detach\n");
goto out_sockmap;
}
err = bpf_prog_detach(fd, BPF_SK_SKB_STREAM_VERDICT);
if (err) {
if (!err) {
printf("Failed empty verdict prog detach\n");
goto out_sockmap;
}
err = bpf_prog_detach(fd, BPF_SK_MSG_VERDICT);
if (err) {
if (!err) {
printf("Failed empty msg verdict prog detach\n");
goto out_sockmap;
}
@ -1094,19 +1094,19 @@ static void test_sockmap(unsigned int tasks, void *data)
assert(status == 0);
}
err = bpf_prog_detach(map_fd_rx, __MAX_BPF_ATTACH_TYPE);
err = bpf_prog_detach2(parse_prog, map_fd_rx, __MAX_BPF_ATTACH_TYPE);
if (!err) {
printf("Detached an invalid prog type.\n");
goto out_sockmap;
}
err = bpf_prog_detach(map_fd_rx, BPF_SK_SKB_STREAM_PARSER);
err = bpf_prog_detach2(parse_prog, map_fd_rx, BPF_SK_SKB_STREAM_PARSER);
if (err) {
printf("Failed parser prog detach\n");
goto out_sockmap;
}
err = bpf_prog_detach(map_fd_rx, BPF_SK_SKB_STREAM_VERDICT);
err = bpf_prog_detach2(verdict_prog, map_fd_rx, BPF_SK_SKB_STREAM_VERDICT);
if (err) {
printf("Failed parser prog detach\n");
goto out_sockmap;