mirror of
https://github.com/openvswitch/ovs
synced 2025-10-09 13:49:05 +00:00
659586efcf
Add a tun_id field which contains the ID of the encapsulating tunnel on which a packet was received (0 if not received on a tunnel). Also add an action which allows the tunnel ID to be set for outgoing packets. At this point there aren't any tunnel implementations so these fields don't have any effect. The matching is exposed to OpenFlow by overloading the high 32 bits of the cookie as the tunnel ID. ovs-ofctl is capable of turning on this special behavior using a new "tun-cookie" command but this command is intentially undocumented to avoid it being used without a full understanding of the consequences.
141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/*
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* Copyright (c) 2009, 2010 Nicira Networks.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <config.h>
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#include "odp-util.h"
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#include <inttypes.h>
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#include <stdlib.h>
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#include <string.h>
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#include "coverage.h"
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#include "dynamic-string.h"
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#include "flow.h"
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#include "packets.h"
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#include "timeval.h"
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#include "util.h"
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union odp_action *
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odp_actions_add(struct odp_actions *actions, uint16_t type)
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{
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union odp_action *a;
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if (actions->n_actions < MAX_ODP_ACTIONS) {
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a = &actions->actions[actions->n_actions++];
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} else {
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COVERAGE_INC(odp_overflow);
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actions->n_actions = MAX_ODP_ACTIONS + 1;
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a = &actions->actions[MAX_ODP_ACTIONS - 1];
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}
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memset(a, 0, sizeof *a);
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a->type = type;
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return a;
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}
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void
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format_odp_action(struct ds *ds, const union odp_action *a)
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{
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switch (a->type) {
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case ODPAT_OUTPUT:
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ds_put_format(ds, "%"PRIu16, a->output.port);
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break;
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case ODPAT_OUTPUT_GROUP:
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ds_put_format(ds, "g%"PRIu16, a->output_group.group);
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break;
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case ODPAT_CONTROLLER:
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ds_put_format(ds, "ctl(%"PRIu32")", a->controller.arg);
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break;
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case ODPAT_SET_TUNNEL:
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ds_put_format(ds, "set_tunnel(0x%08"PRIx32")", ntohl(a->tunnel.tun_id));
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break;
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case ODPAT_SET_VLAN_VID:
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ds_put_format(ds, "set_vlan(%"PRIu16")", ntohs(a->vlan_vid.vlan_vid));
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break;
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case ODPAT_SET_VLAN_PCP:
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ds_put_format(ds, "set_vlan_pcp(%"PRIu8")", a->vlan_pcp.vlan_pcp);
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break;
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case ODPAT_STRIP_VLAN:
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ds_put_format(ds, "strip_vlan");
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break;
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case ODPAT_SET_DL_SRC:
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ds_put_format(ds, "set_dl_src("ETH_ADDR_FMT")",
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ETH_ADDR_ARGS(a->dl_addr.dl_addr));
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break;
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case ODPAT_SET_DL_DST:
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ds_put_format(ds, "set_dl_dst("ETH_ADDR_FMT")",
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ETH_ADDR_ARGS(a->dl_addr.dl_addr));
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break;
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case ODPAT_SET_NW_SRC:
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ds_put_format(ds, "set_nw_src("IP_FMT")",
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IP_ARGS(&a->nw_addr.nw_addr));
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break;
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case ODPAT_SET_NW_DST:
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ds_put_format(ds, "set_nw_dst("IP_FMT")",
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IP_ARGS(&a->nw_addr.nw_addr));
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break;
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case ODPAT_SET_NW_TOS:
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ds_put_format(ds, "set_nw_tos(%"PRIu8")", a->nw_tos.nw_tos);
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break;
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case ODPAT_SET_TP_SRC:
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ds_put_format(ds, "set_tp_src(%"PRIu16")", ntohs(a->tp_port.tp_port));
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break;
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case ODPAT_SET_TP_DST:
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ds_put_format(ds, "set_tp_dst(%"PRIu16")", ntohs(a->tp_port.tp_port));
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break;
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default:
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ds_put_format(ds, "***bad action 0x%"PRIx16"***", a->type);
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break;
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}
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}
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void
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format_odp_actions(struct ds *ds, const union odp_action *actions,
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size_t n_actions)
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{
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size_t i;
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for (i = 0; i < n_actions; i++) {
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if (i) {
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ds_put_char(ds, ',');
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}
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format_odp_action(ds, &actions[i]);
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}
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if (!n_actions) {
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ds_put_cstr(ds, "drop");
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}
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}
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void
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format_odp_flow_stats(struct ds *ds, const struct odp_flow_stats *s)
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{
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ds_put_format(ds, "packets:%llu, bytes:%llu, used:",
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(unsigned long long int) s->n_packets,
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(unsigned long long int) s->n_bytes);
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if (s->used_sec) {
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long long int used = s->used_sec * 1000 + s->used_nsec / 1000000;
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ds_put_format(ds, "%.3fs", (time_msec() - used) / 1000.0);
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} else {
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ds_put_format(ds, "never");
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}
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}
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void
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format_odp_flow(struct ds *ds, const struct odp_flow *f)
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{
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flow_format(ds, &f->key);
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ds_put_cstr(ds, ", ");
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format_odp_flow_stats(ds, &f->stats);
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ds_put_cstr(ds, ", actions:");
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format_odp_actions(ds, f->actions, f->n_actions);
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}
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