forked from luck/tmp_suning_uos_patched
34 lines
821 B
C
34 lines
821 B
C
|
#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
|