summaryrefslogblamecommitdiff
path: root/include/net/rtnh.h
blob: aa2cfc508f7c237dc47b68f0de751b5d06c702e6 (plain) (tree) 
b24413180f56 ^

3c618c1dbb88 ^


4e902c57417c ^






b1993a2de12c ^

4e902c57417c ^
























1

2
3

4
5
6
7
8
9

10

11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

                                      

                    





                                                                      
                                                 























                                                                            
/* 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