1 #include <uapi/linux/ptrace.h> 2 #include <uapi/linux/bpf.h> 3 #include <linux/version.h> 4 #include "bpf_helpers.h" 5 6 SEC("kprobe/open_ctree") bpf_prog1(struct pt_regs * ctx)7int bpf_prog1(struct pt_regs *ctx) 8 { 9 unsigned long rc = -12; 10 11 bpf_override_return(ctx, rc); 12 return 0; 13 } 14 15 char _license[] SEC("license") = "GPL"; 16 u32 _version SEC("version") = LINUX_VERSION_CODE; 17