X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=datapath%2Fflow.h;h=5c232791ada53e96b846f0ca9c45daf7cf195e3b;hb=e6ed263114e071865884531f5756d7d30035d93d;hp=be734532c2082e0a80db2f22c868d08b43c787c0;hpb=ec58547a81246c0f3f7a03ab28ba1a78f1988235;p=sliver-openvswitch.git

diff --git a/datapath/flow.h b/datapath/flow.h
index be734532c..5c232791a 100644
--- a/datapath/flow.h
+++ b/datapath/flow.h
@@ -15,6 +15,7 @@
 #include <linux/types.h>
 #include <linux/rcupdate.h>
 #include <linux/if_ether.h>
+#include <linux/in6.h>
 #include <linux/jiffies.h>
 #include <linux/time.h>
 
@@ -31,8 +32,17 @@ struct sw_flow_actions {
 
 struct sw_flow_key {
 	__be64	tun_id;     /* Encapsulating tunnel ID. */
-	__be32	nw_src;	    /* IP source address. */
-	__be32	nw_dst;	    /* IP destination address. */
+	union {
+		struct {
+			__be32	ipv4_src;	 /* IPv4 source address. */
+			__be32	ipv4_dst;	 /* IPv4 destination address. */
+		};
+		struct {
+			struct in6_addr	ipv6_src; /* IPv6 source address. */
+			struct in6_addr ipv6_dst; /* IPv6 source address. */
+		};
+	};
+	struct in6_addr	nd_target; /* IPv6 ND target address. */
 	u16	in_port;    /* Input switch port. */
 	__be16	dl_tci;	    /* 0 if no VLAN, VLAN_TAG_PRESENT set otherwise. */
 	__be16	dl_type;    /* Ethernet frame type. */
@@ -42,6 +52,8 @@ struct sw_flow_key {
 	u8	dl_dst[ETH_ALEN]; /* Ethernet destination address. */
 	u8	nw_proto;   /* IP protocol or lower 8 bits of ARP opcode. */
 	u8	nw_tos;	    /* IP ToS (DSCP field, 6 bits). */
+	u8	arp_sha[ETH_ALEN]; /* ARP/ND source hardware address. */
+	u8	arp_tha[ETH_ALEN]; /* ARP/ND target hardware address. */
 };
 
 struct sw_flow {
@@ -96,10 +108,23 @@ u64 flow_used_time(unsigned long flow_jiffies);
 u32 flow_hash(const struct sw_flow_key *);
 int flow_cmp(const struct tbl_node *, void *target);
 
-/* By my calculations currently the longest valid nlattr-formatted flow key is
- * 80 bytes long, so this leaves some safety margin.
+/* Upper bound on the length of a nlattr-formatted flow key.  The longest
+ * nlattr-formatted flow key would be:
+ *
+ *                         struct  pad  nl hdr  total
+ *                         ------  ---  ------  -----
+ *  ODP_KEY_ATTR_TUN_ID        8    --     4     12
+ *  ODP_KEY_ATTR_IN_PORT       4    --     4      8
+ *  ODP_KEY_ATTR_ETHERNET     12    --     4     16
+ *  ODP_KEY_ATTR_8021Q         4    --     4      8
+ *  ODP_KEY_ATTR_ETHERTYPE     2     2     4      8
+ *  ODP_KEY_ATTR_IPV6         34     2     4     40
+ *  ODP_KEY_ATTR_ICMPV6        2     2     4      8
+ *  ODP_KEY_ATTR_ND           28    --     4     32
+ *  -------------------------------------------------
+ *  total                                       132
  */
-#define FLOW_BUFSIZE 96
+#define FLOW_BUFSIZE 132
 
 int flow_to_nlattrs(const struct sw_flow_key *, struct sk_buff *);
 int flow_from_nlattrs(struct sw_flow_key *swkey, const struct nlattr *);