-static void
-xlate_nicira_action(struct action_xlate_ctx *ctx,
- const struct nx_action_header *nah)
-{
- const struct nx_action_resubmit *nar;
- const struct nx_action_set_tunnel *nast;
- const struct nx_action_set_queue *nasq;
- const struct nx_action_multipath *nam;
- const struct nx_action_autopath *naa;
- enum nx_action_subtype subtype = ntohs(nah->subtype);
- const struct ofhooks *ofhooks = ctx->ofproto->ofhooks;
- struct xlate_reg_state state;
- uint16_t autopath_port;
- ovs_be64 tun_id;
-
- assert(nah->vendor == htonl(NX_VENDOR_ID));
- switch (subtype) {
- case NXAST_RESUBMIT:
- nar = (const struct nx_action_resubmit *) nah;
- xlate_table_action(ctx, ofp_port_to_odp_port(ntohs(nar->in_port)));
- break;
-
- case NXAST_SET_TUNNEL:
- nast = (const struct nx_action_set_tunnel *) nah;
- tun_id = htonll(ntohl(nast->tun_id));
- nl_msg_put_be64(ctx->odp_actions, ODP_ACTION_ATTR_SET_TUNNEL, tun_id);
- ctx->flow.tun_id = tun_id;
- break;
-
- case NXAST_DROP_SPOOFED_ARP:
- if (ctx->flow.dl_type == htons(ETH_TYPE_ARP)) {
- nl_msg_put_flag(ctx->odp_actions,
- ODP_ACTION_ATTR_DROP_SPOOFED_ARP);
- }
- break;
-
- case NXAST_SET_QUEUE:
- nasq = (const struct nx_action_set_queue *) nah;
- xlate_set_queue_action(ctx, nasq);
- break;
-
- case NXAST_POP_QUEUE:
- add_pop_action(ctx);
- break;
-
- case NXAST_REG_MOVE:
- save_reg_state(ctx, &state);
- nxm_execute_reg_move((const struct nx_action_reg_move *) nah,
- &ctx->flow);
- update_reg_state(ctx, &state);
- break;
-
- case NXAST_REG_LOAD:
- save_reg_state(ctx, &state);
- nxm_execute_reg_load((const struct nx_action_reg_load *) nah,
- &ctx->flow);
- update_reg_state(ctx, &state);
- break;
-
- case NXAST_NOTE:
- /* Nothing to do. */
- break;
-
- case NXAST_SET_TUNNEL64:
- tun_id = ((const struct nx_action_set_tunnel64 *) nah)->tun_id;
- nl_msg_put_be64(ctx->odp_actions, ODP_ACTION_ATTR_SET_TUNNEL, tun_id);
- ctx->flow.tun_id = tun_id;
- break;
-
- case NXAST_MULTIPATH:
- nam = (const struct nx_action_multipath *) nah;
- multipath_execute(nam, &ctx->flow);
- break;
-
- case NXAST_AUTOPATH:
- naa = (const struct nx_action_autopath *) nah;
- autopath_port = (ofhooks->autopath_cb
- ? ofhooks->autopath_cb(&ctx->flow, ntohl(naa->id),
- &ctx->tags, ctx->ofproto->aux)
- : OFPP_NONE);
- autopath_execute(naa, &ctx->flow, autopath_port);
- break;
-
- /* If you add a new action here that modifies flow data, don't forget to
- * update the flow key in ctx->flow at the same time. */
-
- case NXAST_SNAT__OBSOLETE:
- default:
- VLOG_DBG_RL(&rl, "unknown Nicira action type %d", (int) subtype);
- break;
- }
-}
-
-static void
-do_xlate_actions(const union ofp_action *in, size_t n_in,
- struct action_xlate_ctx *ctx)
-{
- struct actions_iterator iter;
- const union ofp_action *ia;
- const struct ofport *port;
-
- port = get_port(ctx->ofproto, ctx->flow.in_port);
- if (port && port->opp.config & (OFPPC_NO_RECV | OFPPC_NO_RECV_STP) &&
- port->opp.config & (eth_addr_equals(ctx->flow.dl_dst, eth_addr_stp)
- ? OFPPC_NO_RECV_STP : OFPPC_NO_RECV)) {
- /* Drop this flow. */
- return;
- }
-
- for (ia = actions_first(&iter, in, n_in); ia; ia = actions_next(&iter)) {
- enum ofp_action_type type = ntohs(ia->type);
- const struct ofp_action_dl_addr *oada;
-
- switch (type) {
- case OFPAT_OUTPUT:
- xlate_output_action(ctx, &ia->output);
- break;
-
- case OFPAT_SET_VLAN_VID:
- ctx->flow.vlan_tci &= ~htons(VLAN_VID_MASK);
- ctx->flow.vlan_tci |= ia->vlan_vid.vlan_vid | htons(VLAN_CFI);
- xlate_set_dl_tci(ctx);
- break;
-
- case OFPAT_SET_VLAN_PCP:
- ctx->flow.vlan_tci &= ~htons(VLAN_PCP_MASK);
- ctx->flow.vlan_tci |= htons(
- (ia->vlan_pcp.vlan_pcp << VLAN_PCP_SHIFT) | VLAN_CFI);
- xlate_set_dl_tci(ctx);
- break;
-
- case OFPAT_STRIP_VLAN:
- ctx->flow.vlan_tci = htons(0);
- xlate_set_dl_tci(ctx);
- break;
-
- case OFPAT_SET_DL_SRC:
- oada = ((struct ofp_action_dl_addr *) ia);
- nl_msg_put_unspec(ctx->odp_actions, ODP_ACTION_ATTR_SET_DL_SRC,
- oada->dl_addr, ETH_ADDR_LEN);
- memcpy(ctx->flow.dl_src, oada->dl_addr, ETH_ADDR_LEN);
- break;
-
- case OFPAT_SET_DL_DST:
- oada = ((struct ofp_action_dl_addr *) ia);
- nl_msg_put_unspec(ctx->odp_actions, ODP_ACTION_ATTR_SET_DL_DST,
- oada->dl_addr, ETH_ADDR_LEN);
- memcpy(ctx->flow.dl_dst, oada->dl_addr, ETH_ADDR_LEN);
- break;
-
- case OFPAT_SET_NW_SRC:
- nl_msg_put_be32(ctx->odp_actions, ODP_ACTION_ATTR_SET_NW_SRC,
- ia->nw_addr.nw_addr);
- ctx->flow.nw_src = ia->nw_addr.nw_addr;
- break;
-
- case OFPAT_SET_NW_DST:
- nl_msg_put_be32(ctx->odp_actions, ODP_ACTION_ATTR_SET_NW_DST,
- ia->nw_addr.nw_addr);
- ctx->flow.nw_dst = ia->nw_addr.nw_addr;
- break;
-
- case OFPAT_SET_NW_TOS:
- nl_msg_put_u8(ctx->odp_actions, ODP_ACTION_ATTR_SET_NW_TOS,
- ia->nw_tos.nw_tos);
- ctx->flow.nw_tos = ia->nw_tos.nw_tos;
- break;
-
- case OFPAT_SET_TP_SRC:
- nl_msg_put_be16(ctx->odp_actions, ODP_ACTION_ATTR_SET_TP_SRC,
- ia->tp_port.tp_port);
- ctx->flow.tp_src = ia->tp_port.tp_port;
- break;
-
- case OFPAT_SET_TP_DST:
- nl_msg_put_be16(ctx->odp_actions, ODP_ACTION_ATTR_SET_TP_DST,
- ia->tp_port.tp_port);
- ctx->flow.tp_dst = ia->tp_port.tp_port;
- break;
-
- case OFPAT_VENDOR:
- xlate_nicira_action(ctx, (const struct nx_action_header *) ia);
- break;
-
- case OFPAT_ENQUEUE:
- xlate_enqueue_action(ctx, (const struct ofp_action_enqueue *) ia);
- break;
-
- default:
- VLOG_DBG_RL(&rl, "unknown action type %d", (int) type);
- break;
- }
- }
-}
-
-static void
-action_xlate_ctx_init(struct action_xlate_ctx *ctx,
- struct ofproto *ofproto, const struct flow *flow,
- const struct ofpbuf *packet)
-{
- ctx->ofproto = ofproto;
- ctx->flow = *flow;
- ctx->packet = packet;
- ctx->resubmit_hook = NULL;
- ctx->check_special = true;
-}
-
-static void
-ofproto_process_cfm(struct ofproto *ofproto, const struct flow *flow,
- const struct ofpbuf *packet)
-{
- struct ofport *ofport;
-
- ofport = get_port(ofproto, flow->in_port);
- if (ofport && ofport->cfm) {
- cfm_process_heartbeat(ofport->cfm, packet);
- }
-}
-
-static struct ofpbuf *
-xlate_actions(struct action_xlate_ctx *ctx,
- const union ofp_action *in, size_t n_in)
-{
- COVERAGE_INC(ofproto_ofp2odp);
-
- ctx->odp_actions = ofpbuf_new(512);
- ctx->tags = 0;
- ctx->may_set_up_flow = true;
- ctx->nf_output_iface = NF_OUT_DROP;
- ctx->recurse = 0;
- ctx->last_pop_priority = -1;
-
- if (ctx->check_special && cfm_should_process_flow(&ctx->flow)) {
- if (ctx->packet) {
- ofproto_process_cfm(ctx->ofproto, &ctx->flow, ctx->packet);
- }
- ctx->may_set_up_flow = false;
- } else if (ctx->check_special
- && ctx->ofproto->ofhooks->special_cb
- && !ctx->ofproto->ofhooks->special_cb(&ctx->flow, ctx->packet,
- ctx->ofproto->aux)) {
- ctx->may_set_up_flow = false;
- } else {
- do_xlate_actions(in, n_in, ctx);
- }
-
- remove_pop_action(ctx);
-
- /* Check with in-band control to see if we're allowed to set up this
- * flow. */
- if (!connmgr_may_set_up_flow(ctx->ofproto->connmgr, &ctx->flow,
- ctx->odp_actions->data,
- ctx->odp_actions->size)) {
- ctx->may_set_up_flow = false;
- }
-
- return ctx->odp_actions;
-}
-
-/* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow
- * error message code (composed with ofp_mkerr()) for the caller to propagate
- * upward. Otherwise, returns 0.
- *
- * The log message mentions 'msg_type'. */
-static int
-reject_slave_controller(struct ofconn *ofconn, const const char *msg_type)
-{
- if (ofconn_get_type(ofconn) == OFCONN_PRIMARY
- && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) {
- static struct vlog_rate_limit perm_rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&perm_rl, "rejecting %s message from slave controller",
- msg_type);
-
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM);
- } else {
- return 0;
- }
-}
-
-static int
-handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh)
-{
- struct ofproto *p = ofconn_get_ofproto(ofconn);
- struct ofp_packet_out *opo;
- struct ofpbuf payload, *buffer;
- union ofp_action *ofp_actions;
- struct action_xlate_ctx ctx;
- struct ofpbuf *odp_actions;
- struct ofpbuf request;
- struct flow flow;
- size_t n_ofp_actions;
- uint16_t in_port;
- int error;
-
- COVERAGE_INC(ofproto_packet_out);
-
- error = reject_slave_controller(ofconn, "OFPT_PACKET_OUT");
- if (error) {
- return error;
- }
-
- /* Get ofp_packet_out. */
- ofpbuf_use_const(&request, oh, ntohs(oh->length));
- opo = ofpbuf_pull(&request, offsetof(struct ofp_packet_out, actions));
-
- /* Get actions. */
- error = ofputil_pull_actions(&request, ntohs(opo->actions_len),
- &ofp_actions, &n_ofp_actions);
- if (error) {
- return error;
- }
-
- /* Get payload. */
- if (opo->buffer_id != htonl(UINT32_MAX)) {
- error = ofconn_pktbuf_retrieve(ofconn, ntohl(opo->buffer_id),
- &buffer, &in_port);
- if (error || !buffer) {
- return error;
- }
- payload = *buffer;
- } else {
- payload = request;
- buffer = NULL;
- }
-
- /* Extract flow, check actions. */
- flow_extract(&payload, 0, ofp_port_to_odp_port(ntohs(opo->in_port)),
- &flow);
- error = validate_actions(ofp_actions, n_ofp_actions, &flow, p->max_ports);
- if (error) {
- goto exit;
- }
-
- /* Send. */
- action_xlate_ctx_init(&ctx, p, &flow, &payload);
- odp_actions = xlate_actions(&ctx, ofp_actions, n_ofp_actions);
- dpif_execute(p->dpif, odp_actions->data, odp_actions->size, &payload);
- ofpbuf_delete(odp_actions);
-
-exit:
- ofpbuf_delete(buffer);
- return 0;
-}
-
-static void
-update_port_config(struct ofproto *p, struct ofport *port,
- uint32_t config, uint32_t mask)
-{
- mask &= config ^ port->opp.config;
- if (mask & OFPPC_PORT_DOWN) {
- if (config & OFPPC_PORT_DOWN) {
- netdev_turn_flags_off(port->netdev, NETDEV_UP, true);
- } else {
- netdev_turn_flags_on(port->netdev, NETDEV_UP, true);
- }
- }
-#define REVALIDATE_BITS (OFPPC_NO_RECV | OFPPC_NO_RECV_STP | \
- OFPPC_NO_FWD | OFPPC_NO_FLOOD)
- if (mask & REVALIDATE_BITS) {
- COVERAGE_INC(ofproto_costly_flags);
- port->opp.config ^= mask & REVALIDATE_BITS;
- p->need_revalidate = true;
- }
-#undef REVALIDATE_BITS
- if (mask & OFPPC_NO_PACKET_IN) {
- port->opp.config ^= OFPPC_NO_PACKET_IN;
- }
-}
-
-static int
-handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh)
-{
- struct ofproto *p = ofconn_get_ofproto(ofconn);
- const struct ofp_port_mod *opm = (const struct ofp_port_mod *) oh;
- struct ofport *port;
- int error;
-
- error = reject_slave_controller(ofconn, "OFPT_PORT_MOD");
- if (error) {
- return error;
- }
-
- port = get_port(p, ofp_port_to_odp_port(ntohs(opm->port_no)));