| #include <linux/filter.h> |
| #include <linux/seccomp.h> |
| #include <sys/resource.h> |
| /* install fake seccomp program to enable seccomp code path inside the kernel, |
| * so that our kprobe attached to seccomp_phase1() can be triggered |
| static void install_accept_all_seccomp(void) |
| struct sock_filter filter[] = { |
| BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW), |
| struct sock_fprog prog = { |
| .len = (unsigned short)(sizeof(filter)/sizeof(filter[0])), |
| if (prctl(PR_SET_SECCOMP, 2, &prog)) |
| int main(int ac, char **argv) |
| struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; |
| snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); |
| setrlimit(RLIMIT_MEMLOCK, &r); |
| if (load_bpf_file(filename)) { |
| printf("%s", bpf_log_buf); |
| install_accept_all_seccomp(); |
| f = popen("dd if=/dev/zero of=/dev/null count=5", "r"); |