SERVER_PORT
dst.sin6_port = ntohs(SERVER_PORT);
to.sin_port = ntohs(SERVER_PORT);
udp.uh_dport = htons(SERVER_PORT);
BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SERVER_PORT, 0, 1),
BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SERVER_PORT, 0, 4),
BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SERVER_PORT, 0, 1),
server_port = htons(SERVER_PORT);
BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SERVER_PORT, 0, 1),
BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SERVER_PORT, 0, 1),
BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SERVER_PORT, 0, 1),
laddr.sin_port = htons(SERVER_PORT);
ss2sin(&sp->to)->sin_port = htons(SERVER_PORT);
ss2sin(&pc.pc_src)->sin_port = htons(SERVER_PORT);
ss2sin(&pc.pc_src)->sin_port = htons(SERVER_PORT);
ntohs(ss2sin(&pc.pc_dst)->sin_port) != SERVER_PORT)