Lines Matching refs:greh
67 struct gre_base_hdr *greh; in gre_build_header() local
72 greh = (struct gre_base_hdr *)skb->data; in gre_build_header()
73 greh->flags = tnl_flags_to_gre_flags(tpi->flags); in gre_build_header()
74 greh->protocol = tpi->proto; in gre_build_header()
77 __be32 *ptr = (__be32 *)(((u8 *)greh) + hdr_len - 4); in gre_build_header()
101 const struct gre_base_hdr *greh; in parse_gre_header() local
108 greh = (struct gre_base_hdr *)skb_transport_header(skb); in parse_gre_header()
109 if (unlikely(greh->flags & (GRE_VERSION | GRE_ROUTING))) in parse_gre_header()
112 tpi->flags = gre_flags_to_tnl_flags(greh->flags); in parse_gre_header()
118 greh = (struct gre_base_hdr *)skb_transport_header(skb); in parse_gre_header()
119 tpi->proto = greh->protocol; in parse_gre_header()
121 options = (__be32 *)(greh + 1); in parse_gre_header()
122 if (greh->flags & GRE_CSUM) { in parse_gre_header()
134 if (greh->flags & GRE_KEY) { in parse_gre_header()
140 if (unlikely(greh->flags & GRE_SEQ)) { in parse_gre_header()
150 if (greh->flags == 0 && tpi->proto == htons(ETH_P_WCCP)) { in parse_gre_header()