On Sun, Feb 02, 2025 at 08:29:21AM -0800, Eyal Birger wrote:
SNIP
> +TEST_F(URETPROBE, uretprobe_default_block)
> +{
> + struct sock_filter filter[] = {
> + BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
> + offsetof(struct seccomp_data, nr)),
> + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit_group, 1, 0),
> + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
> + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
> + };
> + struct sock_fprog prog = {
> + .len = (unsigned short)ARRAY_SIZE(filter),
> + .filter = filter,
> + };
> +
> + ASSERT_EQ(0, run_probed_with_filter(&prog));
> +}
> +
> +TEST_F(URETPROBE, uretprobe_block_uretprobe_syscall)
> +{
> + struct sock_filter filter[] = {
> + BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
> + offsetof(struct seccomp_data, nr)),
> +#ifdef __NR_uretprobe
> + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_uretprobe, 0, 1),
> +#endif
does it make sense to run these tests on archs without __NR_uretprobe ?
jirka
> + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
> + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
> + };
> + struct sock_fprog prog = {
> + .len = (unsigned short)ARRAY_SIZE(filter),
> + .filter = filter,
> + };
> +
> + ASSERT_EQ(0, run_probed_with_filter(&prog));
> +}
> +
> +TEST_F(URETPROBE, uretprobe_default_block_with_uretprobe_syscall)
> +{
> + struct sock_filter filter[] = {
> + BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
> + offsetof(struct seccomp_data, nr)),
> +#ifdef __NR_uretprobe
> + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_uretprobe, 2, 0),
> +#endif
> + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit_group, 1, 0),
> + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
> + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
> + };
> + struct sock_fprog prog = {
> + .len = (unsigned short)ARRAY_SIZE(filter),
> + .filter = filter,
> + };
> +
> + ASSERT_EQ(0, run_probed_with_filter(&prog));
> +}
> +
> /*
> * TODO:
> * - expand NNP testing
> --
> 2.43.0
>
