zebra/rule_netlink.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Zebra Policy Based Routing (PBR) interaction with the kernel using
   4  * netlink - public definitions and function declarations.
   5  * Copyright (C) 2018 Cumulus Networks, Inc.
   6  */
   7
   8 #ifndef _ZEBRA_RULE_NETLINK_H
   9 #define _ZEBRA_RULE_NETLINK_H
  10
  11 #ifdef HAVE_NETLINK
  12
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif
  16
  17 /*
  18  * Handle netlink notification informing a rule add or delete.
  19  */
  20 extern int netlink_rule_change(struct nlmsghdr *h, ns_id_t ns_id, int startup);
  21
  22 /*
  23  * Get to know existing PBR rules in the kernel - typically called at startup.
  24  */
  25 extern int netlink_rules_read(struct zebra_ns *zns);
  26
  27 extern enum netlink_msg_status
  28 netlink_put_rule_update_msg(struct nl_batch *bth, struct zebra_dplane_ctx *ctx);
  29
  30 #ifdef __cplusplus
  31 }
  32 #endif
  33
  34 #endif /* HAVE_NETLINK */
  35
  36 #endif /* _ZEBRA_RULE_NETLINK_H */