blob: 3334dbfa5aa4b45ff76338fbd85819e85a7efe8c [file] [log] [blame]
Thomas Graf4e902c52006-08-17 18:14:52 -07001#ifndef __NET_NEXTHOP_H
2#define __NET_NEXTHOP_H
3
4#include <linux/rtnetlink.h>
5#include <net/netlink.h>
6
7static inline int rtnh_ok(const struct rtnexthop *rtnh, int remaining)
8{
9 return remaining >= sizeof(*rtnh) &&
10 rtnh->rtnh_len >= sizeof(*rtnh) &&
11 rtnh->rtnh_len <= remaining;
12}
13
14static inline struct rtnexthop *rtnh_next(const struct rtnexthop *rtnh,
15 int *remaining)
16{
17 int totlen = NLA_ALIGN(rtnh->rtnh_len);
18
19 *remaining -= totlen;
20 return (struct rtnexthop *) ((char *) rtnh + totlen);
21}
22
23static inline struct nlattr *rtnh_attrs(const struct rtnexthop *rtnh)
24{
25 return (struct nlattr *) ((char *) rtnh + NLA_ALIGN(sizeof(*rtnh)));
26}
27
28static inline int rtnh_attrlen(const struct rtnexthop *rtnh)
29{
30 return rtnh->rtnh_len - NLA_ALIGN(sizeof(*rtnh));
31}
32
33#endif