zebra/rule_netlink.h

   1 /*
   2  * Zebra Policy Based Routing (PBR) interaction with the kernel using
   3  * netlink - public definitions and function declarations.
   4  * Copyright (C) 2018 Cumulus Networks, Inc.
   5  *
   6  * This file is part of FRR.
   7  *
   8  * FRR is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2, or (at your option) any
  11  * later version.
  12  *
  13  * FRR is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with FRR; see the file COPYING.  If not, write to the Free
  20  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  21  * 02111-1307, USA.
  22  */
  23
  24 #ifndef _ZEBRA_RULE_NETLINK_H
  25 #define _ZEBRA_RULE_NETLINK_H
  26
  27 #ifdef HAVE_NETLINK
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /*
  34  * Handle netlink notification informing a rule add or delete.
  35  */
  36 extern int netlink_rule_change(struct nlmsghdr *h, ns_id_t ns_id, int startup);
  37
  38 /*
  39  * Get to know existing PBR rules in the kernel - typically called at startup.
  40  */
  41 extern int netlink_rules_read(struct zebra_ns *zns);
  42
  43 extern enum netlink_msg_status
  44 netlink_put_rule_update_msg(struct nl_batch *bth, struct zebra_dplane_ctx *ctx);
  45
  46 #ifdef __cplusplus
  47 }
  48 #endif
  49
  50 #endif /* HAVE_NETLINK */
  51
  52 #endif /* _ZEBRA_RULE_NETLINK_H */