mirror of
https://github.com/openvswitch/ovs
synced 2025-08-22 09:58:01 +00:00
c852a8c767
Bad packets were still being validated in software when decapsulating a IP header. Trust decision taken wrt IP checksum offloading (checking dp_packet_hwol_l3_csum_ipv4_ol()) and avoid revalidating a known bad checksum. While at it, add coverage counters so that checksum validation impact can be monitored, and unit tests. Acked-by: Mike Pattrick <mkp@redhat.com> Signed-off-by: David Marchand <david.marchand@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
135 lines
4.4 KiB
C
135 lines
4.4 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(const struct netdev *netdev,
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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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int
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netdev_erspan_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 *p);
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void
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netdev_erspan_push_header(const struct netdev *netdev,
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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_erspan_pop_header(struct dp_packet *packet);
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struct dp_packet *
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netdev_gtpu_pop_header(struct dp_packet *packet);
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void
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netdev_gtpu_push_header(const struct netdev *netdev,
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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_gtpu_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 *p);
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struct dp_packet *netdev_srv6_pop_header(struct dp_packet *);
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void netdev_srv6_push_header(const struct netdev *,
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struct dp_packet *,
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const struct ovs_action_push_tnl *);
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int netdev_srv6_build_header(const struct netdev *,
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struct ovs_action_push_tnl *,
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const struct netdev_tnl_build_header_params *);
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void
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netdev_tnl_push_udp_header(const struct netdev *netdev,
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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, ovs_be32 ipv6_label);
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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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ovs_be16 netdev_tnl_get_src_port(struct dp_packet *);
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void *
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netdev_tnl_push_ip_header(struct dp_packet *packet, const void *header,
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int size, int *ip_tot_size, ovs_be32 ipv6_label);
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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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