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/*
* Copyright (c) 2013, 2014 Alexandru Copot <alex.mihai.c@gmail.com>, with support from IXIA.
* Copyright (c) 2013, 2014 Daniel Baluta <dbaluta@ixiacom.com>
* Copyright (c) 2014, 2015, 2016 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include "bundles.h"
#include "coverage.h"
#include "fail-open.h"
#include "in-band.h"
#include "odp-util.h"
#include "ofproto-provider.h"
#include "openvswitch/ofp-actions.h"
#include "openvswitch/ofp-msgs.h"
#include "openvswitch/ofpbuf.h"
#include "openvswitch/vconn.h"
#include "openvswitch/vlog.h"
#include "pinsched.h"
#include "openvswitch/poll-loop.h"
#include "openvswitch/rconn.h"
#include "openvswitch/shash.h"
#include "simap.h"
#include "stream.h"
#include "timeval.h"
VLOG_DEFINE_THIS_MODULE(bundles);
static struct ofp_bundle *
ofp_bundle_create(uint32_t id, uint16_t flags, const struct ofp_header *oh)
{
struct ofp_bundle *bundle;
bundle = xmalloc(sizeof(*bundle));
bundle->used = time_msec();
bundle->id = id;
bundle->flags = flags;
bundle->state = BS_OPEN;
bundle->msg = xmemdup(oh, ntohs(oh->length));
ovs_list_init(&bundle->msg_list);
return bundle;
}
void
ofp_bundle_remove__(struct ofconn *ofconn, struct ofp_bundle *bundle)
{
struct ofp_bundle_entry *msg;
LIST_FOR_EACH_POP (msg, node, &bundle->msg_list) {
ofp_bundle_entry_free(msg);
}
ofconn_remove_bundle(ofconn, bundle);
free(bundle->msg);
free(bundle);
}
enum ofperr
ofp_bundle_open(struct ofconn *ofconn, uint32_t id, uint16_t flags,
const struct ofp_header *oh)
{
struct ofp_bundle *bundle;
bundle = ofconn_get_bundle(ofconn, id);
if (bundle) {
VLOG_INFO("Bundle %x already exists.", id);
ofp_bundle_remove__(ofconn, bundle);
return OFPERR_OFPBFC_BAD_ID;
}
bundle = ofp_bundle_create(id, flags, oh);
ofconn_insert_bundle(ofconn, bundle);
return 0;
}
enum ofperr
ofp_bundle_close(struct ofconn *ofconn, uint32_t id, uint16_t flags)
{
struct ofp_bundle *bundle;
bundle = ofconn_get_bundle(ofconn, id);
if (!bundle) {
return OFPERR_OFPBFC_BAD_ID;
}
if (bundle->state == BS_CLOSED) {
ofp_bundle_remove__(ofconn, bundle);
return OFPERR_OFPBFC_BUNDLE_CLOSED;
}
if (bundle->flags != flags) {
ofp_bundle_remove__(ofconn, bundle);
return OFPERR_OFPBFC_BAD_FLAGS;
}
bundle->used = time_msec();
bundle->state = BS_CLOSED;
return 0;
}
enum ofperr
ofp_bundle_discard(struct ofconn *ofconn, uint32_t id)
{
struct ofp_bundle *bundle;
bundle = ofconn_get_bundle(ofconn, id);
if (!bundle) {
return OFPERR_OFPBFC_BAD_ID;
}
ofp_bundle_remove__(ofconn, bundle);
return 0;
}
enum ofperr
ofp_bundle_add_message(struct ofconn *ofconn, uint32_t id, uint16_t flags,
struct ofp_bundle_entry *bmsg,
const struct ofp_header *oh)
{
struct ofp_bundle *bundle;
bundle = ofconn_get_bundle(ofconn, id);
if (!bundle) {
bundle = ofp_bundle_create(id, flags, oh);
ofconn_insert_bundle(ofconn, bundle);
} else if (bundle->state == BS_CLOSED) {
ofp_bundle_remove__(ofconn, bundle);
return OFPERR_OFPBFC_BUNDLE_CLOSED;
} else if (flags != bundle->flags) {
ofp_bundle_remove__(ofconn, bundle);
return OFPERR_OFPBFC_BAD_FLAGS;
}
bundle->used = time_msec();
ovs_list_push_back(&bundle->msg_list, &bmsg->node);
return 0;
}
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