udp_lib_get_port 128 include/net/udp.h extern int udp_lib_get_port(struct sock *sk, unsigned short snum, udp_lib_get_port 208 net/ipv4/udp.c return udp_lib_get_port(sk, snum, ipv4_rcv_saddr_equal); udp_lib_get_port 54 net/ipv6/udp.c return udp_lib_get_port(sk, snum, ipv6_rcv_saddr_equal);