/*
- * Copyright (c) 2008, 2009 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
struct ofpbuf;
+bool dpid_from_string(const char *s, uint64_t *dpidp);
+
#define ETH_ADDR_LEN 6
-static const uint8_t eth_addr_broadcast[ETH_ADDR_LEN] UNUSED
+static const uint8_t eth_addr_broadcast[ETH_ADDR_LEN] OVS_UNUSED
= { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
static inline bool eth_addr_is_broadcast(const uint8_t ea[6])
return (ea[0] & ea[1] & ea[2] & ea[3] & ea[4] & ea[5]) == 0xff;
}
-/* Returns true if 'ea' is an Ethernet address used for virtual interfaces
- * under XenServer. Generally the actual Ethernet address is FE:FF:FF:FF:FF:FF
- * but it can be FE:FE:FE:FE:FE:FE in some cases. */
-static inline bool eth_addr_is_vif(const uint8_t ea[6])
-{
- return ea[0] == 0xfe && (ea[1] & ea[2] & ea[3] & ea[4] & ea[5]) >= 0xfe;
-}
-
static inline bool eth_addr_is_multicast(const uint8_t ea[6])
{
return ea[0] & 1;
}
static inline bool eth_addr_is_local(const uint8_t ea[6])
{
- return ea[0] & 2;
+ /* Local if it is either a locally administered address or a Nicira random
+ * address. */
+ return !!(ea[0] & 2)
+ || (ea[0] == 0x00 && ea[1] == 0x23 && ea[2] == 0x20 && !!(ea[3] & 0x80));
}
static inline bool eth_addr_is_zero(const uint8_t ea[6])
{
random_bytes(ea, ETH_ADDR_LEN);
eth_addr_mark_random(ea);
}
+static inline void eth_addr_nicira_random(uint8_t ea[ETH_ADDR_LEN])
+{
+ eth_addr_random(ea);
+
+ /* Set the OUI to the Nicira one. */
+ ea[0] = 0x00;
+ ea[1] = 0x23;
+ ea[2] = 0x20;
+
+ /* Set the top bit to indicate random Nicira address. */
+ ea[3] |= 0x80;
+}
/* Returns true if 'ea' is a reserved multicast address, that a bridge must
* never forward, false otherwise. */
static inline bool eth_addr_is_reserved(const uint8_t ea[ETH_ADDR_LEN])
&& (ea[5] & 0xf0) == 0x00);
}
+bool eth_addr_from_string(const char *, uint8_t ea[ETH_ADDR_LEN]);
+
void compose_benign_packet(struct ofpbuf *, const char *tag,
uint16_t snap_type,
const uint8_t eth_src[ETH_ADDR_LEN]);
BUILD_ASSERT_DECL(LLC_SNAP_HEADER_LEN == sizeof(struct llc_snap_header));
#define VLAN_VID_MASK 0x0fff
+#define VLAN_VID_SHIFT 0
+
#define VLAN_PCP_MASK 0xe000
+#define VLAN_PCP_SHIFT 13
#define VLAN_HEADER_LEN 4
struct vlan_header {
#define IP_IHL(ip_ihl_ver) ((ip_ihl_ver) & 15)
#define IP_IHL_VER(ihl, ver) (((ver) << 4) | (ihl))
+/* TOS fields. */
+#define IP_ECN_MASK 0x03
+#define IP_DSCP_MASK 0xfc
+
#define IP_TYPE_ICMP 1
#define IP_TYPE_TCP 6
#define IP_TYPE_UDP 17