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https://github.com/openvswitch/ovs
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1f16131837
This patch first defines the dpif interface for a datapath to support adding, deleting, getting and dumping conntrack timeout policy. The timeout policy is identified by a 4 bytes unsigned integer in datapath, and it currently support timeout for TCP, UDP, and ICMP protocols. Moreover, this patch provides the implementation for Linux kernel datapath in dpif-netlink. In Linux kernel, the timeout policy is maintained per L3/L4 protocol, and it is identified by 32 bytes null terminated string. On the other hand, in vswitchd, the timeout policy is a generic one that consists of all the supported L4 protocols. Therefore, one of the main task in dpif-netlink is to break down the generic timeout policy into 6 sub policies (ipv4 tcp, udp, icmp, and ipv6 tcp, udp, icmp), and push down the configuration using the netlink API in netlink-conntrack.c. This patch also adds missing symbols in the windows datapath so that the build on windows can pass. Appveyor CI: * https://ci.appveyor.com/project/YiHungWei/ovs/builds/26387754 Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com> Acked-by: Alin Gabriel Serdean <aserdean@ovn.org> Signed-off-by: Justin Pettit <jpettit@ovn.org>
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/*
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* Copyright (c) 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 NETLINK_CONNTRACK_H
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#define NETLINK_CONNTRACK_H
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#include <linux/netfilter/nfnetlink_cttimeout.h>
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#include "byte-order.h"
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#include "compiler.h"
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#include "ct-dpif.h"
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#include "openvswitch/dynamic-string.h"
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#include "openvswitch/hmap.h"
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#include "openvswitch/ofpbuf.h"
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#include "timeval.h"
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#include "unixctl.h"
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#include "util.h"
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enum nl_ct_event_type {
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NL_CT_EVENT_NEW = 1 << 0,
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NL_CT_EVENT_UPDATE = 1 << 1,
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NL_CT_EVENT_DELETE = 1 << 2,
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};
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#define NL_CT_TIMEOUT_POLICY_MAX_ATTR (CTA_TIMEOUT_TCP_MAX + 1)
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struct nl_ct_timeout_policy {
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char name[CTNL_TIMEOUT_NAME_MAX];
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uint16_t l3num;
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uint8_t l4num;
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uint32_t attrs[NL_CT_TIMEOUT_POLICY_MAX_ATTR];
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uint32_t present;
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};
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struct nl_ct_dump_state;
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struct nl_ct_timeout_policy_dump_state;
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int nl_ct_dump_start(struct nl_ct_dump_state **, const uint16_t *zone,
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int *ptot_bkts);
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int nl_ct_dump_next(struct nl_ct_dump_state *, struct ct_dpif_entry *);
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int nl_ct_dump_done(struct nl_ct_dump_state *);
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int nl_ct_flush(void);
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int nl_ct_flush_zone(uint16_t zone);
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int nl_ct_flush_tuple(const struct ct_dpif_tuple *, uint16_t zone);
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int nl_ct_set_timeout_policy(const struct nl_ct_timeout_policy *nl_tp);
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int nl_ct_get_timeout_policy(const char *tp_name,
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struct nl_ct_timeout_policy *nl_tp);
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int nl_ct_del_timeout_policy(const char *tp_name);
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int nl_ct_timeout_policy_dump_start(
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struct nl_ct_timeout_policy_dump_state **statep);
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int nl_ct_timeout_policy_dump_next(
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struct nl_ct_timeout_policy_dump_state *state,
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struct nl_ct_timeout_policy *nl_tp);
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int nl_ct_timeout_policy_dump_done(
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struct nl_ct_timeout_policy_dump_state *state);
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bool nl_ct_parse_entry(struct ofpbuf *, struct ct_dpif_entry *,
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enum nl_ct_event_type *);
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void nl_ct_format_event_entry(const struct ct_dpif_entry *,
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enum nl_ct_event_type, struct ds *,
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bool verbose, bool print_stats);
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#endif /* NETLINK_CONNTRACK_H */
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