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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_RTNH_H
#define __NET_RTNH_H
#include <linux/rtnetlink.h>
#include <net/netlink.h>
static inline int rtnh_ok(const struct rtnexthop *rtnh, int remaining)
{
return remaining >= (int)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