X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fopenflow%2Fnicira-ext.h;h=df2488bd9200caa47d1095ba352230576e6230de;hb=370a11b90339cd26a64d29d5320a5f864330be02;hp=41cd7ec91f9ec7b47ca6b0a6d6472ae230b68177;hpb=898b7f8d4131c9dae8d292bfacd99465fb52b26c;p=openvswitch diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h index 41cd7ec9..df2488bd 100644 --- a/include/openflow/nicira-ext.h +++ b/include/openflow/nicira-ext.h @@ -39,24 +39,21 @@ enum nicira_type { /* No longer used. */ NXT_ACT_SET_CONFIG__OBSOLETE, - - /* No longer used. */ NXT_ACT_GET_CONFIG__OBSOLETE, - - /* No longer used. */ NXT_COMMAND_REQUEST__OBSOLETE, - - /* No longer used. */ NXT_COMMAND_REPLY__OBSOLETE, - - /* No longer used. */ NXT_FLOW_END_CONFIG__OBSOLETE, - - /* No longer used. */ NXT_FLOW_END__OBSOLETE, - - /* No longer used. */ 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 { @@ -66,16 +63,102 @@ 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, + + /* Set the queue that should be used when packets are output. This + * is similar to the OpenFlow OFPAT_ENQUEUE action, but does not + * take the output port as an argument. This allows the queue + * to be defined before the port is known. */ + NXAST_SET_QUEUE, + + /* Restore the queue to the value it was before any NXAST_SET_QUEUE + * actions were used. */ + NXAST_POP_QUEUE }; /* 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. */ @@ -83,14 +166,42 @@ struct nx_action_resubmit { }; 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); + +/* Action structure for NXAST_SET_QUEUE. */ +struct nx_action_set_queue { + uint16_t type; /* OFPAT_VENDOR. */ + uint16_t len; /* Length is 16. */ + uint32_t vendor; /* NX_VENDOR_ID. */ + uint16_t subtype; /* NXAST_SET_QUEUE. */ + uint8_t pad[2]; + uint32_t queue_id; /* Where to enqueue packets. */ +}; +OFP_ASSERT(sizeof(struct nx_action_set_queue) == 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 */