X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=datapath%2Fflow.h;h=80a5b66b1018a84aa193d92b9009c5c9f30ac1f6;hb=7d0ab001dbc7bd4285aaf1dbcb881312ec32608c;hp=f0e7697577ef349787e84303fa6a1744ae41d9fd;hpb=abfec865566e6cce961cc8660de1ddfdc85dae5f;p=openvswitch

diff --git a/datapath/flow.h b/datapath/flow.h
index f0e76975..80a5b66b 100644
--- a/datapath/flow.h
+++ b/datapath/flow.h
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/rcupdate.h>
 #include <linux/gfp.h>
+#include <linux/if_ether.h>
 #include <linux/jiffies.h>
 #include <linux/time.h>
 
@@ -42,6 +43,21 @@ struct sw_flow {
 	u8 tcp_flags;		/* Union of seen TCP flags. */
 };
 
+struct arp_eth_header
+{
+	__be16      ar_hrd;	/* format of hardware address   */
+	__be16      ar_pro;	/* format of protocol address   */
+	unsigned char   ar_hln;	/* length of hardware address   */
+	unsigned char   ar_pln;	/* length of protocol address   */
+	__be16      ar_op;	/* ARP opcode (command)     */
+
+	/* Ethernet+IPv4 specific members. */
+	unsigned char       ar_sha[ETH_ALEN];	/* sender hardware address  */
+	unsigned char       ar_sip[4];		/* sender IP address        */
+	unsigned char       ar_tha[ETH_ALEN];	/* target hardware address  */
+	unsigned char       ar_tip[4];		/* target IP address        */
+} __attribute__((packed));
+
 extern struct kmem_cache *flow_cache;
 
 struct sw_flow_actions *flow_actions_alloc(size_t n_actions);
@@ -50,7 +66,6 @@ void flow_deferred_free_acts(struct sw_flow_actions *);
 int flow_extract(struct sk_buff *, u16 in_port, struct odp_flow_key *);
 void flow_used(struct sw_flow *, struct sk_buff *);
 
-struct sw_flow *flow_cast(const struct tbl_node *);
 u32 flow_hash(const struct odp_flow_key *key);
 int flow_cmp(const struct tbl_node *, void *target);
 void flow_free_tbl(struct tbl_node *);
@@ -58,4 +73,9 @@ void flow_free_tbl(struct tbl_node *);
 int flow_init(void);
 void flow_exit(void);
 
+static inline struct sw_flow *flow_cast(const struct tbl_node *node)
+{
+	return container_of(node, struct sw_flow, tbl_node);
+}
+
 #endif /* flow.h */