xfrm_user_policy 1403 include/net/xfrm.h extern int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen); xfrm_user_policy 878 net/ipv4/ip_sockglue.c err = xfrm_user_policy(sk, optname, optval, optlen); xfrm_user_policy 674 net/ipv6/ipv6_sockglue.c retv = xfrm_user_policy(sk, optname, optval, optlen);