nhrpd/znl.h

   1 /* Netlink helpers for zbuf
   2  * Copyright (c) 2014-2015 Timo Teräs
   3  *
   4  * This file is free software: you may copy, redistribute and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  */
   9
  10 #include "zbuf.h"
  11
  12 #define ZNL_BUFFER_SIZE         8192
  13
  14 void *znl_push(struct zbuf *zb, size_t n);
  15 void *znl_pull(struct zbuf *zb, size_t n);
  16
  17 struct nlmsghdr *znl_nlmsg_push(struct zbuf *zb, uint16_t type, uint16_t flags);
  18 void znl_nlmsg_complete(struct zbuf *zb, struct nlmsghdr *n);
  19 struct nlmsghdr *znl_nlmsg_pull(struct zbuf *zb, struct zbuf *payload);
  20
  21 struct rtattr *znl_rta_push(struct zbuf *zb, uint16_t type, const void *val,
  22                             size_t len);
  23 struct rtattr *znl_rta_push_u32(struct zbuf *zb, uint16_t type, uint32_t val);
  24 struct rtattr *znl_rta_nested_push(struct zbuf *zb, uint16_t type);
  25 void znl_rta_nested_complete(struct zbuf *zb, struct rtattr *rta);
  26
  27 struct rtattr *znl_rta_pull(struct zbuf *zb, struct zbuf *payload);
  28
  29 int znl_open(int protocol, int groups);