NXT_FLOW_END_CONFIG__OBSOLETE,
NXT_FLOW_END__OBSOLETE,
NXT_MGMT__OBSOLETE,
+
+ /* Use the high 32 bits of the cookie field as the tunnel ID in the flow
+ * match. */
+ NXT_TUN_ID_FROM_COOKIE,
+
+ /* Controller role support. The request body is struct nx_role_request.
+ * The reply echos the request. */
+ NXT_ROLE_REQUEST,
+ NXT_ROLE_REPLY
};
struct nicira_header {
};
OFP_ASSERT(sizeof(struct nicira_header) == 16);
+struct nxt_tun_id_cookie {
+ struct ofp_header header;
+ uint32_t vendor; /* NX_VENDOR_ID. */
+ uint32_t subtype; /* NXT_TUN_ID_FROM_COOKIE */
+ uint8_t set; /* Nonzero to enable, zero to disable. */
+ uint8_t pad[7];
+};
+OFP_ASSERT(sizeof(struct nxt_tun_id_cookie) == 24);
+
+/* Configures the "role" of the sending controller. The default role is:
+ *
+ * - Other (NX_ROLE_OTHER), which allows the controller access to all
+ * OpenFlow features.
+ *
+ * The other possible roles are a related pair:
+ *
+ * - Master (NX_ROLE_MASTER) is equivalent to Other, except that there may
+ * be at most one Master controller at a time: when a controller
+ * configures itself as Master, any existing Master is demoted to the
+ * Slave role.
+ *
+ * - Slave (NX_ROLE_SLAVE) allows the controller read-only access to
+ * OpenFlow features. In particular attempts to modify the flow table
+ * will be rejected with an OFPBRC_EPERM error.
+ *
+ * Slave controllers also do not receive asynchronous messages
+ * (OFPT_PACKET_IN, OFPT_FLOW_REMOVED, OFPT_PORT_STATUS).
+ */
+struct nx_role_request {
+ struct nicira_header nxh;
+ uint32_t role; /* One of NX_ROLE_*. */
+};
+
+enum nx_role {
+ NX_ROLE_OTHER, /* Default role, full access. */
+ NX_ROLE_MASTER, /* Full access, at most one. */
+ NX_ROLE_SLAVE /* Read-only access. */
+};
enum nx_action_subtype {
NXAST_SNAT__OBSOLETE, /* No longer used. */
- NXAST_RESUBMIT /* Throw against flow table again. */
+
+ /* Searches the flow table again, using a flow that is slightly modified
+ * from the original lookup:
+ *
+ * - The 'in_port' member of struct nx_action_resubmit is used as the
+ * flow's in_port.
+ *
+ * - If NXAST_RESUBMIT is preceded by actions that affect the flow
+ * (e.g. OFPAT_SET_VLAN_VID), then the flow is updated with the new
+ * values.
+ *
+ * Following the lookup, the original in_port is restored.
+ *
+ * If the modified flow matched in the flow table, then the corresponding
+ * actions are executed. Afterward, actions following NXAST_RESUBMIT in
+ * the original set of actions, if any, are executed; any changes made to
+ * the packet (e.g. changes to VLAN) by secondary actions persist when
+ * those actions are executed, although the original in_port is restored.
+ *
+ * NXAST_RESUBMIT may be used any number of times within a set of actions.
+ *
+ * NXAST_RESUBMIT may nest to an implementation-defined depth. Beyond this
+ * implementation-defined depth, further NXAST_RESUBMIT actions are simply
+ * ignored. (Open vSwitch 1.0.1 and earlier did not support recursion.)
+ */
+ NXAST_RESUBMIT,
+
+ /* Set encapsulating tunnel ID. */
+ NXAST_SET_TUNNEL,
+
+ /* Stops processing further actions, if the packet being processed is an
+ * Ethernet+IPv4 ARP packet for which the source Ethernet address inside
+ * the ARP packet differs from the source Ethernet address in the Ethernet
+ * header.
+ *
+ * This is useful because OpenFlow does not provide a way to match on the
+ * Ethernet addresses inside ARP packets, so there is no other way to drop
+ * spoofed ARPs other than sending every ARP packet to a controller. */
+ NXAST_DROP_SPOOFED_ARP
};
/* Action structure for NXAST_RESUBMIT. */
struct nx_action_resubmit {
uint16_t type; /* OFPAT_VENDOR. */
- uint16_t len; /* Length is 8. */
+ uint16_t len; /* Length is 16. */
uint32_t vendor; /* NX_VENDOR_ID. */
uint16_t subtype; /* NXAST_RESUBMIT. */
uint16_t in_port; /* New in_port for checking flow table. */
};
OFP_ASSERT(sizeof(struct nx_action_resubmit) == 16);
+/* Action structure for NXAST_SET_TUNNEL. */
+struct nx_action_set_tunnel {
+ uint16_t type; /* OFPAT_VENDOR. */
+ uint16_t len; /* Length is 16. */
+ uint32_t vendor; /* NX_VENDOR_ID. */
+ uint16_t subtype; /* NXAST_SET_TUNNEL. */
+ uint8_t pad[2];
+ uint32_t tun_id; /* Tunnel ID. */
+};
+OFP_ASSERT(sizeof(struct nx_action_set_tunnel) == 16);
+
/* Header for Nicira-defined actions. */
struct nx_action_header {
uint16_t type; /* OFPAT_VENDOR. */
- uint16_t len; /* Length is 8. */
+ uint16_t len; /* Length is 16. */
uint32_t vendor; /* NX_VENDOR_ID. */
uint16_t subtype; /* NXAST_*. */
uint8_t pad[6];
};
OFP_ASSERT(sizeof(struct nx_action_header) == 16);
+/* Wildcard for tunnel ID. */
+#define NXFW_TUN_ID (1 << 25)
+
+#define NXFW_ALL NXFW_TUN_ID
+#define OVSFW_ALL (OFPFW_ALL | NXFW_ALL)
+
#endif /* openflow/nicira-ext.h */
git://git.onelab.eu / sliver-openvswitch.git / blobdiff