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* Copyright (c) 2011, 2012 Nicira, Inc.
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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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* http://www.apache.org/licenses/LICENSE-2.0
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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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#include "meta-flow.h"
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#include "ofp-actions.h"
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#include "ofp-errors.h"
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#include "openflow/nicira-ext.h"
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VLOG_DEFINE_THIS_MODULE(autopath);
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autopath_parse(struct ofpact_autopath *ap, const char *s_)
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char *id_str, *dst, *save_ptr;
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ofpact_init_AUTOPATH(ap);
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id_str = strtok_r(s, ", ", &save_ptr);
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dst = strtok_r(NULL, ", ", &save_ptr);
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ovs_fatal(0, "%s: not enough arguments to autopath action", s_);
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if (!ofputil_port_from_string(id_str, &port)) {
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ovs_fatal(0, "%s: bad port number", s_);
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mf_parse_subfield(&ap->dst, dst);
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if (ap->dst.n_bits < 16) {
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ovs_fatal(0, "%s: %d-bit destination field has %u possible values, "
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"less than required 65536",
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s_, ap->dst.n_bits, 1u << ap->dst.n_bits);
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autopath_from_openflow(const struct nx_action_autopath *nap,
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struct ofpact_autopath *autopath)
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ofpact_init_AUTOPATH(autopath);
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autopath->dst.field = mf_from_nxm_header(ntohl(nap->dst));
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autopath->dst.ofs = nxm_decode_ofs(nap->ofs_nbits);
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autopath->dst.n_bits = nxm_decode_n_bits(nap->ofs_nbits);
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autopath->port = ntohl(nap->id);
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if (autopath->dst.n_bits < 16) {
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VLOG_WARN("at least 16 bit destination is required for autopath "
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return OFPERR_OFPBAC_BAD_ARGUMENT;
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return autopath_check(autopath, NULL);
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autopath_check(const struct ofpact_autopath *autopath, const struct flow *flow)
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VLOG_WARN_ONCE("The autopath action is deprecated and may be removed in"
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" February 2013. Please email dev@openvswitch.org with"
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return mf_check_dst(&autopath->dst, flow);
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autopath_to_nxast(const struct ofpact_autopath *autopath,
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struct ofpbuf *openflow)
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struct nx_action_autopath *ap;
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ap = ofputil_put_NXAST_AUTOPATH__DEPRECATED(openflow);
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ap->ofs_nbits = nxm_encode_ofs_nbits(autopath->dst.ofs,
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autopath->dst.n_bits);
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ap->dst = htonl(autopath->dst.field->nxm_header);
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ap->id = htonl(autopath->port);