[linux.git] / include / net / nexthop.h

#ifndef __NET_NEXTHOP_H
#define __NET_NEXTHOP_H

#include <linux/rtnetlink.h>
#include <net/netlink.h>

static inline int rtnh_ok(const struct rtnexthop *rtnh, int remaining)
{
	return remaining >= sizeof(*rtnh) &&
	       rtnh->rtnh_len >= sizeof(*rtnh) &&
	       rtnh->rtnh_len <= remaining;
}

static inline struct rtnexthop *rtnh_next(const struct rtnexthop *rtnh,
                                         int *remaining)
{
	int totlen = NLA_ALIGN(rtnh->rtnh_len);

	*remaining -= totlen;
	return (struct rtnexthop *) ((char *) rtnh + totlen);
}

static inline struct nlattr *rtnh_attrs(const struct rtnexthop *rtnh)
{
	return (struct nlattr *) ((char *) rtnh + NLA_ALIGN(sizeof(*rtnh)));
}

static inline int rtnh_attrlen(const struct rtnexthop *rtnh)
{
	return rtnh->rtnh_len - NLA_ALIGN(sizeof(*rtnh));
}

#endif
Commit	Line	Data
4e902c57 TG	1	#ifndef __NET_NEXTHOP_H
	2	#define __NET_NEXTHOP_H
	3
	4	#include <linux/rtnetlink.h>
	5	#include <net/netlink.h>
	6
	7	static 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
	14	static 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
	23	static inline struct nlattr rtnh_attrs(const struct rtnexthop rtnh)
	24	{
	25	return (struct nlattr ) ((char ) rtnh + NLA_ALIGN(sizeof(*rtnh)));
	26	}
	27
	28	static inline int rtnh_attrlen(const struct rtnexthop *rtnh)
	29	{
	30	return rtnh->rtnh_len - NLA_ALIGN(sizeof(*rtnh));
	31	}
	32
	33	#endif