examples/ip_reassembly: initial import

[dpdk.git] / lib / librte_net / rte_ip.h

diff --git a/lib/librte_net/rte_ip.h b/lib/librte_net/rte_ip.h
index dd159be..f42844e 100644 (file)
--- a/lib/librte_net/rte_ip.h
+++ b/lib/librte_net/rte_ip.h
@@ -105,6 +105,18 @@ struct ipv4_hdr {
                                           (((c) & 0xff) << 8)  | \
                                           ((d) & 0xff))
 
+/* Fragment Offset * Flags. */
+#define        IPV4_HDR_DF_SHIFT       14
+#define        IPV4_HDR_MF_SHIFT       13
+#define        IPV4_HDR_FO_SHIFT       3
+
+#define        IPV4_HDR_DF_FLAG        (1 << IPV4_HDR_DF_SHIFT)
+#define        IPV4_HDR_MF_FLAG        (1 << IPV4_HDR_MF_SHIFT)
+
+#define        IPV4_HDR_OFFSET_MASK    ((1 << IPV4_HDR_MF_SHIFT) - 1)
+
+#define        IPV4_HDR_OFFSET_UNITS   8
+
 /* IPv4 protocols */
 #define IPPROTO_IP         0  /**< dummy for IP */
 #define IPPROTO_HOPOPTS    0  /**< IP6 hop-by-hop options */