From 9a03abc16c77062c73972df08206f1031862d9b4 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 17 Jun 2021 16:18:34 -0700 Subject: selftests/seccomp: Avoid using "sysctl" for report Instead of depending on "sysctl" being installed, just use "grep -H" for sysctl status reporting. Additionally report kernel version for easier comparisons. Signed-off-by: Kees Cook --- tools/testing/selftests/seccomp/seccomp_benchmark.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/seccomp/seccomp_benchmark.c b/tools/testing/selftests/seccomp/seccomp_benchmark.c index 363cad755042..6e5102a7d7c9 100644 --- a/tools/testing/selftests/seccomp/seccomp_benchmark.c +++ b/tools/testing/selftests/seccomp/seccomp_benchmark.c @@ -145,9 +145,13 @@ int main(int argc, char *argv[]) setbuf(stdout, NULL); + printf("Running on:\n"); + system("uname -a"); + printf("Current BPF sysctl settings:\n"); - system("sysctl net.core.bpf_jit_enable"); - system("sysctl net.core.bpf_jit_harden"); + /* Avoid using "sysctl" which may not be installed. */ + system("grep -H . /proc/sys/net/core/bpf_jit_enable"); + system("grep -H . /proc/sys/net/core/bpf_jit_harden"); if (argc > 1) samples = strtoull(argv[1], NULL, 0); -- cgit v1.2.3-58-ga151