lib/netlink-conntrack.h

   1 /*
   2  * Copyright (c) 2015 Nicira, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef NETLINK_CONNTRACK_H
  18 #define NETLINK_CONNTRACK_H
  19
  20 #include <linux/netfilter/nfnetlink_cttimeout.h>
  21
  22 #include "byte-order.h"
  23 #include "compiler.h"
  24 #include "ct-dpif.h"
  25 #include "openvswitch/dynamic-string.h"
  26 #include "openvswitch/hmap.h"
  27 #include "openvswitch/ofpbuf.h"
  28 #include "timeval.h"
  29 #include "unixctl.h"
  30 #include "util.h"
  31
  32 enum nl_ct_event_type {
  33     NL_CT_EVENT_NEW    = 1 << 0,
  34     NL_CT_EVENT_UPDATE = 1 << 1,
  35     NL_CT_EVENT_DELETE = 1 << 2,
  36 };
  37
  38 #define NL_CT_TIMEOUT_POLICY_MAX_ATTR (CTA_TIMEOUT_TCP_MAX + 1)
  39
  40 struct nl_ct_timeout_policy {
  41     char        name[CTNL_TIMEOUT_NAME_MAX];
  42     uint16_t    l3num;
  43     uint8_t     l4num;
  44     uint32_t    attrs[NL_CT_TIMEOUT_POLICY_MAX_ATTR];
  45     uint32_t    present;
  46 };
  47
  48 struct nl_ct_dump_state;
  49 struct nl_ct_timeout_policy_dump_state;
  50
  51 int nl_ct_dump_start(struct nl_ct_dump_state **, const uint16_t *zone,
  52                      int *ptot_bkts);
  53 int nl_ct_dump_next(struct nl_ct_dump_state *, struct ct_dpif_entry *);
  54 int nl_ct_dump_done(struct nl_ct_dump_state *);
  55
  56 int nl_ct_flush(void);
  57 int nl_ct_flush_zone(uint16_t zone);
  58 int nl_ct_flush_tuple(const struct ct_dpif_tuple *, uint16_t zone);
  59
  60 int nl_ct_set_timeout_policy(const struct nl_ct_timeout_policy *nl_tp);
  61 int nl_ct_get_timeout_policy(const char *tp_name,
  62                              struct nl_ct_timeout_policy *nl_tp);
  63 int nl_ct_del_timeout_policy(const char *tp_name);
  64 int nl_ct_timeout_policy_dump_start(
  65     struct nl_ct_timeout_policy_dump_state **statep);
  66 int nl_ct_timeout_policy_dump_next(
  67     struct nl_ct_timeout_policy_dump_state *state,
  68     struct nl_ct_timeout_policy *nl_tp);
  69 int nl_ct_timeout_policy_dump_done(
  70     struct nl_ct_timeout_policy_dump_state *state);
  71
  72 bool nl_ct_parse_entry(struct ofpbuf *, struct ct_dpif_entry *,
  73                        enum nl_ct_event_type *);
  74 void nl_ct_format_event_entry(const struct ct_dpif_entry *,
  75                               enum nl_ct_event_type, struct ds *,
  76                               bool verbose, bool print_stats);
  77
  78 #endif /* NETLINK_CONNTRACK_H */