mirror of
https://github.com/openvswitch/ovs
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aca40d4f49
Throughout the years, changes in netdev vport have removed the need for some of the headers, like shash, hmap, and many others. With the recent split of push/pop code, less headers are needed in each of the two modules. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com> Signed-off-by: Jesse Gross <jesse@kernel.org>
110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/*
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* Copyright (c) 2010, 2011, 2013, 2015 Nicira, Inc.
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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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#ifndef NETDEV_VPORT_NATIVE_TNL_H
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#define NETDEV_VPORT_NATIVE_TNL_H 1
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#include <stdbool.h>
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#include <stddef.h>
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#include "compiler.h"
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#include "dp-packet.h"
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#include "packets.h"
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#include "unixctl.h"
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struct netdev;
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struct ovs_action_push_tnl;
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struct netdev_tnl_build_header_params;
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int
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netdev_gre_build_header(const struct netdev *netdev,
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struct ovs_action_push_tnl *data,
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const struct netdev_tnl_build_header_params *params);
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void
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netdev_gre_push_header(struct dp_packet *packet,
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const struct ovs_action_push_tnl *data);
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struct dp_packet *
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netdev_gre_pop_header(struct dp_packet *packet);
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void
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netdev_tnl_push_udp_header(struct dp_packet *packet,
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const struct ovs_action_push_tnl *data);
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int
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netdev_geneve_build_header(const struct netdev *netdev,
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struct ovs_action_push_tnl *data,
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const struct netdev_tnl_build_header_params *params);
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struct dp_packet *
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netdev_geneve_pop_header(struct dp_packet *packet);
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int
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netdev_vxlan_build_header(const struct netdev *netdev,
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struct ovs_action_push_tnl *data,
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const struct netdev_tnl_build_header_params *params);
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struct dp_packet *
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netdev_vxlan_pop_header(struct dp_packet *packet);
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static inline bool
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netdev_tnl_is_header_ipv6(const void *header)
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{
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const struct eth_header *eth;
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eth = header;
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return eth->eth_type == htons(ETH_TYPE_IPV6);
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}
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static inline struct ip_header *
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netdev_tnl_ip_hdr(void *eth)
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{
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return (void *)((char *)eth + sizeof (struct eth_header));
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}
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static inline struct ovs_16aligned_ip6_hdr *
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netdev_tnl_ipv6_hdr(void *eth)
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{
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return (void *)((char *)eth + sizeof (struct eth_header));
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}
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void *
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netdev_tnl_ip_build_header(struct ovs_action_push_tnl *data,
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const struct netdev_tnl_build_header_params *params,
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uint8_t next_proto);
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extern uint16_t tnl_udp_port_min;
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extern uint16_t tnl_udp_port_max;
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static inline ovs_be16
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netdev_tnl_get_src_port(struct dp_packet *packet)
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{
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uint32_t hash;
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hash = dp_packet_get_rss_hash(packet);
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return htons((((uint64_t) hash * (tnl_udp_port_max - tnl_udp_port_min)) >> 32) +
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tnl_udp_port_min);
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}
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void *
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netdev_tnl_ip_extract_tnl_md(struct dp_packet *packet, struct flow_tnl *tnl,
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unsigned int *hlen);
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void *
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netdev_tnl_push_ip_header(struct dp_packet *packet,
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const void *header, int size, int *ip_tot_size);
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void
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netdev_tnl_egress_port_range(struct unixctl_conn *conn, int argc,
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const char *argv[], void *aux OVS_UNUSED);
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#endif
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