diff options
Diffstat (limited to 'libdde-linux26/contrib/include/net/nexthop.h')
-rw-r--r-- | libdde-linux26/contrib/include/net/nexthop.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libdde-linux26/contrib/include/net/nexthop.h b/libdde-linux26/contrib/include/net/nexthop.h new file mode 100644 index 00000000..3334dbfa --- /dev/null +++ b/libdde-linux26/contrib/include/net/nexthop.h @@ -0,0 +1,33 @@ +#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 |