#define ETHER_MAX_VLAN_ID 4095 /**< Maximum VLAN ID. */
+#define ETHER_MIN_MTU 68 /**< Minimum MTU for IPv4 packets, see RFC 791. */
+
/**
* Ethernet address:
* A universally administered address is uniquely assigned to a device by its
*/
static inline int is_local_admin_ether_addr(const struct ether_addr *ea)
{
- return ((ea->addr_bytes[0] & ETHER_LOCAL_ADMIN_ADDR) == 1);
+ return ((ea->addr_bytes[0] & ETHER_LOCAL_ADMIN_ADDR) != 0);
}
/**
uint16_t eth_proto;/**< Ethernet type of encapsulated frame. */
} __attribute__((__packed__));
+/**
+ * VXLAN protocol header.
+ * Contains the 8-bit flag, 24-bit VXLAN Network Identifier and
+ * Reserved fields (24 bits and 8 bits)
+ */
+struct vxlan_hdr {
+ uint32_t vx_flags; /**< flag (8) + Reserved (24). */
+ uint32_t vx_vni; /**< VNI (24) + Reserved (8). */
+} __attribute__((__packed__));
+
/* Ethernet frame types */
#define ETHER_TYPE_IPv4 0x0800 /**< IPv4 Protocol. */
#define ETHER_TYPE_IPv6 0x86DD /**< IPv6 Protocol. */
#define ETHER_TYPE_VLAN 0x8100 /**< IEEE 802.1Q VLAN tagging. */
#define ETHER_TYPE_1588 0x88F7 /**< IEEE 802.1AS 1588 Precise Time Protocol. */
+#define ETHER_VXLAN_HLEN (sizeof(struct udp_hdr) + sizeof(struct vxlan_hdr))
+/**< VXLAN tunnel header length. */
+
#ifdef __cplusplus
}
#endif