Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __NET_RTNH_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __NET_RTNH_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/rtnetlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <net/netlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) static inline int rtnh_ok(const struct rtnexthop *rtnh, int remaining)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	return remaining >= (int)sizeof(*rtnh) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	       rtnh->rtnh_len >= sizeof(*rtnh) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	       rtnh->rtnh_len <= remaining;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static inline struct rtnexthop *rtnh_next(const struct rtnexthop *rtnh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)                                          int *remaining)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	int totlen = NLA_ALIGN(rtnh->rtnh_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	*remaining -= totlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	return (struct rtnexthop *) ((char *) rtnh + totlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static inline struct nlattr *rtnh_attrs(const struct rtnexthop *rtnh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	return (struct nlattr *) ((char *) rtnh + NLA_ALIGN(sizeof(*rtnh)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static inline int rtnh_attrlen(const struct rtnexthop *rtnh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	return rtnh->rtnh_len - NLA_ALIGN(sizeof(*rtnh));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #endif