XFRM_SPI_SKB_CB 1523 include/net/xfrm.h XFRM_SPI_SKB_CB(skb)->family = AF_INET; XFRM_SPI_SKB_CB 1524 include/net/xfrm.h XFRM_SPI_SKB_CB(skb)->daddroff = offsetof(struct iphdr, daddr);