Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / ipxe / if_arp.h

diff --git a/qemu/roms/ipxe/src/include/ipxe/if_arp.h b/qemu/roms/ipxe/src/include/ipxe/if_arp.h
new file mode 100644 (file)
index 0000000..fd36e9c
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/ipxe/if_arp.h
@@ -0,0 +1,102 @@
+#ifndef        _IPXE_IF_ARP_H
+#define        _IPXE_IF_ARP_H
+
+/** @file
+ *
+ * Address Resolution Protocol constants and types
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+
+/* ARP protocol HARDWARE identifiers. */
+#define ARPHRD_NETROM  0               /**< from KA9Q: NET/ROM pseudo  */
+#define ARPHRD_ETHER   1               /**< Ethernet 10Mbps            */
+#define        ARPHRD_EETHER   2               /**< Experimental Ethernet      */
+#define        ARPHRD_AX25     3               /**< AX.25 Level 2              */
+#define        ARPHRD_PRONET   4               /**< PROnet token ring          */
+#define        ARPHRD_CHAOS    5               /**< Chaosnet                   */
+#define        ARPHRD_IEEE802  6               /**< IEEE 802.2 Ethernet/TR/TB  */
+#define        ARPHRD_ARCNET   7               /**< ARCnet                     */
+#define        ARPHRD_APPLETLK 8               /**< APPLEtalk                  */
+#define ARPHRD_DLCI    15              /**< Frame Relay DLCI           */
+#define ARPHRD_ATM     19              /**< ATM                        */
+#define ARPHRD_METRICOM        23              /**< Metricom STRIP (new IANA id) */
+#define        ARPHRD_IEEE1394 24              /**< IEEE 1394 IPv4 - RFC 2734  */
+#define ARPHRD_EUI64   27              /**< EUI-64                     */
+#define ARPHRD_INFINIBAND 32           /**< InfiniBand                 */
+
+/* ARP protocol opcodes. */
+#define        ARPOP_REQUEST   1               /**< ARP request                */
+#define        ARPOP_REPLY     2               /**< ARP reply                  */
+#define        ARPOP_RREQUEST  3               /**< RARP request               */
+#define        ARPOP_RREPLY    4               /**< RARP reply                 */
+#define        ARPOP_InREQUEST 8               /**< InARP request              */
+#define        ARPOP_InREPLY   9               /**< InARP reply                */
+#define        ARPOP_NAK       10              /**< (ATM)ARP NAK               */
+
+/**
+ * An ARP header
+ *
+ * This contains only the fixed-size portions of an ARP header; for
+ * other fields use the arp_{sender,target}_{ha,pa} family of
+ * functions.
+ */
+struct arphdr {
+       /** Link-layer protocol
+        *
+        * This is an ARPHRD_XXX constant
+        */
+       uint16_t ar_hrd;
+       /** Network-layer protocol
+        *
+        * This is, for Ethernet, an ETH_P_XXX constant.
+        */
+       uint16_t ar_pro;
+       /** Link-layer address length */
+       uint8_t ar_hln;
+       /** Network-layer address length */
+       uint8_t ar_pln;
+       /** ARP opcode */
+       uint16_t ar_op;
+} __attribute__ (( packed ));
+
+/** ARP packet sender hardware address
+ *
+ * @v arphdr   ARP header
+ * @ret ar_sha Sender hardware address
+ */
+static inline void * arp_sender_ha ( struct arphdr *arphdr ) {
+       return ( ( ( void * ) arphdr ) + sizeof ( *arphdr ) );
+}
+
+/** ARP packet sender protocol address
+ *
+ * @v arphdr   ARP header
+ * @ret ar_spa Sender protocol address
+ */
+static inline void * arp_sender_pa ( struct arphdr *arphdr ) {
+       return ( arp_sender_ha ( arphdr ) + arphdr->ar_hln );
+}
+
+/** ARP packet target hardware address
+ *
+ * @v arphdr   ARP header
+ * @ret ar_tha Target hardware address
+ */
+static inline void * arp_target_ha ( struct arphdr *arphdr ) {
+       return ( arp_sender_pa ( arphdr ) + arphdr->ar_pln );
+}
+
+/** ARP packet target protocol address
+ *
+ * @v arphdr   ARP header
+ * @ret ar_tpa Target protocol address
+ */
+static inline void * arp_target_pa ( struct arphdr *arphdr ) {
+       return ( arp_target_ha ( arphdr ) + arphdr->ar_hln );
+}
+
+#endif /* _IPXE_IF_ARP_H */