-int ofputil_decode_packet_in(struct ofputil_packet_in *pi,
- const struct ofp_header *oh);
-
-/* OpenFlow protocol utility functions. */
-void *make_openflow(size_t openflow_len, uint8_t type, struct ofpbuf **);
-void *make_nxmsg(size_t openflow_len, uint32_t subtype, struct ofpbuf **);
-
-void *make_openflow_xid(size_t openflow_len, uint8_t type,
- ovs_be32 xid, struct ofpbuf **);
-void *make_nxmsg_xid(size_t openflow_len, uint32_t subtype, ovs_be32 xid,
- struct ofpbuf **);
-
-void *put_openflow(size_t openflow_len, uint8_t type, struct ofpbuf *);
-void *put_openflow_xid(size_t openflow_len, uint8_t type, ovs_be32 xid,
- struct ofpbuf *);
-
-void *put_nxmsg(size_t openflow_len, uint32_t subtype, struct ofpbuf *);
-void *put_nxmsg_xid(size_t openflow_len, uint32_t subtype, ovs_be32 xid,
- struct ofpbuf *);
-
-void update_openflow_length(struct ofpbuf *);
-
-void *ofputil_make_stats_request(size_t openflow_len, uint16_t type,
- uint32_t subtype, struct ofpbuf **);
-void *ofputil_make_stats_reply(size_t openflow_len,
- const struct ofp_stats_msg *request,
- struct ofpbuf **);
-
-void ofputil_start_stats_reply(const struct ofp_stats_msg *request,
- struct list *);
-struct ofpbuf *ofputil_reserve_stats_reply(size_t len, struct list *);
-void *ofputil_append_stats_reply(size_t len, struct list *);
-
-const void *ofputil_stats_body(const struct ofp_header *);
-size_t ofputil_stats_body_len(const struct ofp_header *);
-
-const void *ofputil_nxstats_body(const struct ofp_header *);
-size_t ofputil_nxstats_body_len(const struct ofp_header *);
-
-struct ofpbuf *make_flow_mod(uint16_t command, const struct cls_rule *,
- size_t actions_len);
-struct ofpbuf *make_add_flow(const struct cls_rule *, uint32_t buffer_id,
- uint16_t max_idle, size_t actions_len);
-struct ofpbuf *make_del_flow(const struct cls_rule *);
-struct ofpbuf *make_add_simple_flow(const struct cls_rule *,
- uint32_t buffer_id, uint16_t out_port,
- uint16_t max_idle);
-struct ofpbuf *make_packet_in(uint32_t buffer_id, uint16_t in_port,
- uint8_t reason,
- const struct ofpbuf *payload, int max_send_len);
-struct ofpbuf *make_packet_out(const struct ofpbuf *packet, uint32_t buffer_id,
- uint16_t in_port,
- const struct ofp_action_header *,
- size_t n_actions);
-struct ofpbuf *make_buffered_packet_out(uint32_t buffer_id,
- uint16_t in_port, uint16_t out_port);
-struct ofpbuf *make_unbuffered_packet_out(const struct ofpbuf *packet,
- uint16_t in_port, uint16_t out_port);
-struct ofpbuf *make_echo_request(void);
+
+const char *ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason);
+bool ofputil_packet_in_reason_from_string(const char *,
+ enum ofp_packet_in_reason *);
+
+/* Abstract packet-out message.
+ *
+ * ofputil_decode_packet_out() will ensure that 'in_port' is a physical port
+ * (OFPP_MAX or less) or one of OFPP_LOCAL, OFPP_NONE, or OFPP_CONTROLLER. */
+struct ofputil_packet_out {
+ const void *packet; /* Packet data, if buffer_id == UINT32_MAX. */
+ size_t packet_len; /* Length of packet data in bytes. */
+ uint32_t buffer_id; /* Buffer id or UINT32_MAX if no buffer. */
+ uint16_t in_port; /* Packet's input port. */
+ struct ofpact *ofpacts; /* Actions. */
+ size_t ofpacts_len; /* Size of ofpacts in bytes. */
+};
+
+enum ofperr ofputil_decode_packet_out(struct ofputil_packet_out *,
+ const struct ofp_header *,
+ struct ofpbuf *ofpacts);
+struct ofpbuf *ofputil_encode_packet_out(const struct ofputil_packet_out *,
+ enum ofputil_protocol protocol);
+
+enum ofputil_port_config {
+ /* OpenFlow 1.0 and 1.1 share these values for these port config bits. */
+ OFPUTIL_PC_PORT_DOWN = 1 << 0, /* Port is administratively down. */
+ OFPUTIL_PC_NO_RECV = 1 << 2, /* Drop all packets received by port. */
+ OFPUTIL_PC_NO_FWD = 1 << 5, /* Drop packets forwarded to port. */
+ OFPUTIL_PC_NO_PACKET_IN = 1 << 6, /* No send packet-in msgs for port. */
+ /* OpenFlow 1.0 only. */
+ OFPUTIL_PC_NO_STP = 1 << 1, /* No 802.1D spanning tree for port. */
+ OFPUTIL_PC_NO_RECV_STP = 1 << 3, /* Drop received 802.1D STP packets. */
+ OFPUTIL_PC_NO_FLOOD = 1 << 4, /* Do not include port when flooding. */
+ /* There are no OpenFlow 1.1-only bits. */
+};
+
+enum ofputil_port_state {
+ /* OpenFlow 1.0 and 1.1 share this values for these port state bits. */
+ OFPUTIL_PS_LINK_DOWN = 1 << 0, /* No physical link present. */
+ /* OpenFlow 1.1 only. */
+ OFPUTIL_PS_BLOCKED = 1 << 1, /* Port is blocked */
+ OFPUTIL_PS_LIVE = 1 << 2, /* Live for Fast Failover Group. */
+ /* OpenFlow 1.0 only. */
+ OFPUTIL_PS_STP_LISTEN = 0 << 8, /* Not learning or relaying frames. */
+ OFPUTIL_PS_STP_LEARN = 1 << 8, /* Learning but not relaying frames. */
+ OFPUTIL_PS_STP_FORWARD = 2 << 8, /* Learning and relaying frames. */
+ OFPUTIL_PS_STP_BLOCK = 3 << 8, /* Not part of spanning tree. */
+ OFPUTIL_PS_STP_MASK = 3 << 8 /* Bit mask for OFPPS10_STP_* values. */
+};
+
+/* Abstract ofp10_phy_port or ofp11_port. */
+struct ofputil_phy_port {
+ uint16_t port_no;
+ uint8_t hw_addr[OFP_ETH_ALEN];
+ char name[OFP_MAX_PORT_NAME_LEN];
+ enum ofputil_port_config config;
+ enum ofputil_port_state state;
+
+ /* NETDEV_F_* feature bitmasks. */
+ enum netdev_features curr; /* Current features. */
+ enum netdev_features advertised; /* Features advertised by the port. */
+ enum netdev_features supported; /* Features supported by the port. */
+ enum netdev_features peer; /* Features advertised by peer. */
+
+ /* Speed. */
+ uint32_t curr_speed; /* Current speed, in kbps. */
+ uint32_t max_speed; /* Maximum supported speed, in kbps. */
+};
+
+enum ofputil_capabilities {
+ /* OpenFlow 1.0, 1.1, 1.2, and 1.3 share these capability values. */
+ OFPUTIL_C_FLOW_STATS = 1 << 0, /* Flow statistics. */
+ OFPUTIL_C_TABLE_STATS = 1 << 1, /* Table statistics. */
+ OFPUTIL_C_PORT_STATS = 1 << 2, /* Port statistics. */
+ OFPUTIL_C_IP_REASM = 1 << 5, /* Can reassemble IP fragments. */
+ OFPUTIL_C_QUEUE_STATS = 1 << 6, /* Queue statistics. */
+
+ /* OpenFlow 1.0 and 1.1 share this capability. */
+ OFPUTIL_C_ARP_MATCH_IP = 1 << 7, /* Match IP addresses in ARP pkts. */
+
+ /* OpenFlow 1.0 only. */
+ OFPUTIL_C_STP = 1 << 3, /* 802.1d spanning tree. */
+
+ /* OpenFlow 1.1, 1.2, and 1.3 share this capability. */
+ OFPUTIL_C_GROUP_STATS = 1 << 4, /* Group statistics. */
+
+ /* OpenFlow 1.2 and 1.3 share this capability */
+ OFPUTIL_C_PORT_BLOCKED = 1 << 8, /* Switch will block looping ports */
+};
+
+enum ofputil_action_bitmap {
+ OFPUTIL_A_OUTPUT = 1 << 0,
+ OFPUTIL_A_SET_VLAN_VID = 1 << 1,
+ OFPUTIL_A_SET_VLAN_PCP = 1 << 2,
+ OFPUTIL_A_STRIP_VLAN = 1 << 3,
+ OFPUTIL_A_SET_DL_SRC = 1 << 4,
+ OFPUTIL_A_SET_DL_DST = 1 << 5,
+ OFPUTIL_A_SET_NW_SRC = 1 << 6,
+ OFPUTIL_A_SET_NW_DST = 1 << 7,
+ OFPUTIL_A_SET_NW_ECN = 1 << 8,
+ OFPUTIL_A_SET_NW_TOS = 1 << 9,
+ OFPUTIL_A_SET_TP_SRC = 1 << 10,
+ OFPUTIL_A_SET_TP_DST = 1 << 11,
+ OFPUTIL_A_ENQUEUE = 1 << 12,
+ OFPUTIL_A_COPY_TTL_OUT = 1 << 13,
+ OFPUTIL_A_COPY_TTL_IN = 1 << 14,
+ OFPUTIL_A_SET_MPLS_LABEL = 1 << 15,
+ OFPUTIL_A_SET_MPLS_TC = 1 << 16,
+ OFPUTIL_A_SET_MPLS_TTL = 1 << 17,
+ OFPUTIL_A_DEC_MPLS_TTL = 1 << 18,
+ OFPUTIL_A_PUSH_VLAN = 1 << 19,
+ OFPUTIL_A_POP_VLAN = 1 << 20,
+ OFPUTIL_A_PUSH_MPLS = 1 << 21,
+ OFPUTIL_A_POP_MPLS = 1 << 22,
+ OFPUTIL_A_SET_QUEUE = 1 << 23,
+ OFPUTIL_A_GROUP = 1 << 24,
+ OFPUTIL_A_SET_NW_TTL = 1 << 25,
+ OFPUTIL_A_DEC_NW_TTL = 1 << 26,
+ OFPUTIL_A_SET_FIELD = 1 << 27,
+};
+
+/* Abstract ofp_switch_features. */
+struct ofputil_switch_features {
+ uint64_t datapath_id; /* Datapath unique ID. */
+ uint32_t n_buffers; /* Max packets buffered at once. */
+ uint8_t n_tables; /* Number of tables supported by datapath. */
+ uint8_t auxiliary_id; /* Identify auxiliary connections */
+ enum ofputil_capabilities capabilities;
+ enum ofputil_action_bitmap actions;
+};
+
+enum ofperr ofputil_decode_switch_features(const struct ofp_header *,
+ struct ofputil_switch_features *,
+ struct ofpbuf *);
+
+struct ofpbuf *ofputil_encode_switch_features(
+ const struct ofputil_switch_features *, enum ofputil_protocol,
+ ovs_be32 xid);
+void ofputil_put_switch_features_port(const struct ofputil_phy_port *,
+ struct ofpbuf *);
+bool ofputil_switch_features_ports_trunc(struct ofpbuf *b);
+
+/* phy_port helper functions. */
+int ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *,
+ struct ofputil_phy_port *);
+size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *);
+
+/* Abstract ofp_port_status. */
+struct ofputil_port_status {
+ enum ofp_port_reason reason;
+ struct ofputil_phy_port desc;
+};
+
+enum ofperr ofputil_decode_port_status(const struct ofp_header *,
+ struct ofputil_port_status *);
+struct ofpbuf *ofputil_encode_port_status(const struct ofputil_port_status *,
+ enum ofputil_protocol);
+
+/* Abstract ofp_port_mod. */
+struct ofputil_port_mod {
+ uint16_t port_no;
+ uint8_t hw_addr[OFP_ETH_ALEN];
+ enum ofputil_port_config config;
+ enum ofputil_port_config mask;
+ enum netdev_features advertise;
+};
+
+enum ofperr ofputil_decode_port_mod(const struct ofp_header *,
+ struct ofputil_port_mod *);
+struct ofpbuf *ofputil_encode_port_mod(const struct ofputil_port_mod *,
+ enum ofputil_protocol);
+
+/* Abstract ofp_role_request and reply. */
+struct ofputil_role_request {
+ enum ofp12_controller_role role;
+ bool have_generation_id;
+ uint64_t generation_id;
+};
+
+enum ofperr ofputil_decode_role_message(const struct ofp_header *,
+ struct ofputil_role_request *);
+struct ofpbuf *ofputil_encode_role_reply(const struct ofp_header *,
+ const struct ofputil_role_request *);
+
+/* Abstract table stats.
+ *
+ * For now we use ofp12_table_stats as a superset of the other protocol
+ * versions' table stats. */
+
+struct ofpbuf *ofputil_encode_table_stats_reply(
+ const struct ofp12_table_stats[], int n,
+ const struct ofp_header *request);
+
+/* Abstract nx_flow_monitor_request. */
+struct ofputil_flow_monitor_request {
+ uint32_t id;
+ enum nx_flow_monitor_flags flags;
+ uint16_t out_port;
+ uint8_t table_id;
+ struct match match;
+};
+
+int ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *,
+ struct ofpbuf *msg);
+void ofputil_append_flow_monitor_request(
+ const struct ofputil_flow_monitor_request *, struct ofpbuf *msg);
+
+/* Abstract nx_flow_update. */
+struct ofputil_flow_update {
+ enum nx_flow_update_event event;
+
+ /* Used only for NXFME_ADDED, NXFME_DELETED, NXFME_MODIFIED. */
+ enum ofp_flow_removed_reason reason;
+ uint16_t idle_timeout;
+ uint16_t hard_timeout;
+ uint8_t table_id;
+ ovs_be64 cookie;
+ struct match *match;
+ uint16_t priority;
+ struct ofpact *ofpacts;
+ size_t ofpacts_len;
+
+ /* Used only for NXFME_ABBREV. */
+ ovs_be32 xid;
+};
+
+int ofputil_decode_flow_update(struct ofputil_flow_update *,
+ struct ofpbuf *msg, struct ofpbuf *ofpacts);
+void ofputil_start_flow_update(struct list *replies);
+void ofputil_append_flow_update(const struct ofputil_flow_update *,
+ struct list *replies);
+
+/* Abstract nx_flow_monitor_cancel. */
+uint32_t ofputil_decode_flow_monitor_cancel(const struct ofp_header *);
+struct ofpbuf *ofputil_encode_flow_monitor_cancel(uint32_t id);
+
+/* Encoding OpenFlow stats messages. */
+void ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version,
+ const struct ofputil_phy_port *pp,
+ struct list *replies);
+
+/* Encoding simple OpenFlow messages. */
+struct ofpbuf *make_echo_request(enum ofp_version);