SRC_REWRITE_IP4    15 tools/testing/selftests/bpf/progs/connect4_prog.c #define SRC_REWRITE_IP4		0x7f000004U
SRC_REWRITE_IP4    13 tools/testing/selftests/bpf/progs/sendmsg4_prog.c #define SRC_REWRITE_IP4		0x7f000004U