[mirror_iproute2.git] / include / libnetlink.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LIBNETLINK_H__
#define __LIBNETLINK_H__ 1

#include <stdio.h>
#include <string.h>
#include <asm/types.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/if_addr.h>
#include <linux/neighbour.h>
#include <linux/netconf.h>
#include <arpa/inet.h>

struct rtnl_handle {
	int			fd;
	struct sockaddr_nl	local;
	struct sockaddr_nl	peer;
	__u32			seq;
	__u32			dump;
	int			proto;
	FILE		       *dump_fp;
#define RTNL_HANDLE_F_LISTEN_ALL_NSID		0x01
#define RTNL_HANDLE_F_SUPPRESS_NLERR		0x02
	int			flags;
};

struct nlmsg_list {
	struct nlmsg_list *next;
	struct nlmsghdr   h;
};

struct nlmsg_chain {
	struct nlmsg_list *head;
	struct nlmsg_list *tail;
};

extern int rcvbuf;

int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions)
	__attribute__((warn_unused_result));

int rtnl_open_byproto(struct rtnl_handle *rth, unsigned int subscriptions,
			     int protocol)
	__attribute__((warn_unused_result));

void rtnl_close(struct rtnl_handle *rth);

int rtnl_addrdump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_addrlbldump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_routedump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_ruledump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_neighdump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_neightbldump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_mdbdump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_netconfdump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));
int rtnl_nsiddump_req(struct rtnl_handle *rth, int family)
	__attribute__((warn_unused_result));

int rtnl_linkdump_req(struct rtnl_handle *rth, int fam)
	__attribute__((warn_unused_result));
int rtnl_linkdump_req_filter(struct rtnl_handle *rth, int fam, __u32 filt_mask)
	__attribute__((warn_unused_result));

typedef int (*req_filter_fn_t)(struct nlmsghdr *nlh, int reqlen);

int rtnl_linkdump_req_filter_fn(struct rtnl_handle *rth, int fam,
				req_filter_fn_t fn)
	__attribute__((warn_unused_result));
int rtnl_wilddump_stats_req_filter(struct rtnl_handle *rth, int fam, int type,
				   __u32 filt_mask)
	__attribute__((warn_unused_result));
int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req,
			     int len)
	__attribute__((warn_unused_result));
int rtnl_dump_request_n(struct rtnl_handle *rth, struct nlmsghdr *n)
	__attribute__((warn_unused_result));

struct rtnl_ctrl_data {
	int	nsid;
};

typedef int (*rtnl_filter_t)(const struct sockaddr_nl *,
			     struct nlmsghdr *n, void *);

typedef int (*rtnl_listen_filter_t)(const struct sockaddr_nl *,
				    struct rtnl_ctrl_data *,
				    struct nlmsghdr *n, void *);

typedef int (*nl_ext_ack_fn_t)(const char *errmsg, uint32_t off,
			       const struct nlmsghdr *inner_nlh);

struct rtnl_dump_filter_arg {
	rtnl_filter_t filter;
	void *arg1;
	__u16 nc_flags;
};

int rtnl_dump_filter_l(struct rtnl_handle *rth,
			      const struct rtnl_dump_filter_arg *arg);
int rtnl_dump_filter_nc(struct rtnl_handle *rth,
			rtnl_filter_t filter,
			void *arg, __u16 nc_flags);
#define rtnl_dump_filter(rth, filter, arg) \
	rtnl_dump_filter_nc(rth, filter, arg, 0)
int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
	      struct nlmsghdr **answer)
	__attribute__((warn_unused_result));
int rtnl_talk_iov(struct rtnl_handle *rtnl, struct iovec *iovec, size_t iovlen,
		  struct nlmsghdr **answer)
	__attribute__((warn_unused_result));
int rtnl_talk_extack(struct rtnl_handle *rtnl, struct nlmsghdr *n,
	      struct nlmsghdr **answer, nl_ext_ack_fn_t errfn)
	__attribute__((warn_unused_result));
int rtnl_talk_suppress_rtnl_errmsg(struct rtnl_handle *rtnl, struct nlmsghdr *n,
				   struct nlmsghdr **answer)
	__attribute__((warn_unused_result));
int rtnl_send(struct rtnl_handle *rth, const void *buf, int)
	__attribute__((warn_unused_result));
int rtnl_send_check(struct rtnl_handle *rth, const void *buf, int)
	__attribute__((warn_unused_result));
int nl_dump_ext_ack(const struct nlmsghdr *nlh, nl_ext_ack_fn_t errfn);

int addattr(struct nlmsghdr *n, int maxlen, int type);
int addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data);
int addattr16(struct nlmsghdr *n, int maxlen, int type, __u16 data);
int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data);
int addattr64(struct nlmsghdr *n, int maxlen, int type, __u64 data);
int addattrstrz(struct nlmsghdr *n, int maxlen, int type, const char *data);

int addattr_l(struct nlmsghdr *n, int maxlen, int type,
	      const void *data, int alen);
int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len);
struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type);
int addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest);
struct rtattr *addattr_nest_compat(struct nlmsghdr *n, int maxlen, int type,
				   const void *data, int len);
int addattr_nest_compat_end(struct nlmsghdr *n, struct rtattr *nest);
int rta_addattr8(struct rtattr *rta, int maxlen, int type, __u8 data);
int rta_addattr16(struct rtattr *rta, int maxlen, int type, __u16 data);
int rta_addattr32(struct rtattr *rta, int maxlen, int type, __u32 data);
int rta_addattr64(struct rtattr *rta, int maxlen, int type, __u64 data);
int rta_addattr_l(struct rtattr *rta, int maxlen, int type,
		  const void *data, int alen);

int parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len);
int parse_rtattr_flags(struct rtattr *tb[], int max, struct rtattr *rta,
			      int len, unsigned short flags);
int parse_rtattr_byindex(struct rtattr *tb[], int max,
			 struct rtattr *rta, int len);
struct rtattr *parse_rtattr_one(int type, struct rtattr *rta, int len);
int __parse_rtattr_nested_compat(struct rtattr *tb[], int max, struct rtattr *rta, int len);

struct rtattr *rta_nest(struct rtattr *rta, int maxlen, int type);
int rta_nest_end(struct rtattr *rta, struct rtattr *nest);

#define RTA_TAIL(rta) \
		((struct rtattr *) (((void *) (rta)) + \
				    RTA_ALIGN((rta)->rta_len)))

#define parse_rtattr_nested(tb, max, rta) \
	(parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)))

#define parse_rtattr_one_nested(type, rta) \
	(parse_rtattr_one(type, RTA_DATA(rta), RTA_PAYLOAD(rta)))

#define parse_rtattr_nested_compat(tb, max, rta, data, len) \
	({ data = RTA_PAYLOAD(rta) >= len ? RTA_DATA(rta) : NULL;	\
		__parse_rtattr_nested_compat(tb, max, rta, len); })

static inline __u8 rta_getattr_u8(const struct rtattr *rta)
{
	return *(__u8 *)RTA_DATA(rta);
}
static inline __u16 rta_getattr_u16(const struct rtattr *rta)
{
	return *(__u16 *)RTA_DATA(rta);
}
static inline __be16 rta_getattr_be16(const struct rtattr *rta)
{
	return ntohs(rta_getattr_u16(rta));
}
static inline __u32 rta_getattr_u32(const struct rtattr *rta)
{
	return *(__u32 *)RTA_DATA(rta);
}
static inline __be32 rta_getattr_be32(const struct rtattr *rta)
{
	return ntohl(rta_getattr_u32(rta));
}
static inline __u64 rta_getattr_u64(const struct rtattr *rta)
{
	__u64 tmp;

	memcpy(&tmp, RTA_DATA(rta), sizeof(__u64));
	return tmp;
}
static inline const char *rta_getattr_str(const struct rtattr *rta)
{
	return (const char *)RTA_DATA(rta);
}

int rtnl_listen_all_nsid(struct rtnl_handle *);
int rtnl_listen(struct rtnl_handle *, rtnl_listen_filter_t handler,
		void *jarg);
int rtnl_from_file(FILE *, rtnl_listen_filter_t handler,
		   void *jarg);

#define NLMSG_TAIL(nmsg) \
	((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))

#ifndef IFA_RTA
#define IFA_RTA(r) \
	((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
#endif
#ifndef IFA_PAYLOAD
#define IFA_PAYLOAD(n)	NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg))
#endif

#ifndef IFLA_RTA
#define IFLA_RTA(r) \
	((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
#endif
#ifndef IFLA_PAYLOAD
#define IFLA_PAYLOAD(n)	NLMSG_PAYLOAD(n, sizeof(struct ifinfomsg))
#endif

#ifndef NDA_RTA
#define NDA_RTA(r) \
	((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg))))
#endif
#ifndef NDA_PAYLOAD
#define NDA_PAYLOAD(n)	NLMSG_PAYLOAD(n, sizeof(struct ndmsg))
#endif

#ifndef NDTA_RTA
#define NDTA_RTA(r) \
	((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ndtmsg))))
#endif
#ifndef NDTA_PAYLOAD
#define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ndtmsg))
#endif

#ifndef NETNS_RTA
#define NETNS_RTA(r) \
	((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct rtgenmsg))))
#endif
#ifndef NETNS_PAYLOAD
#define NETNS_PAYLOAD(n)	NLMSG_PAYLOAD(n, sizeof(struct rtgenmsg))
#endif

#ifndef IFLA_STATS_RTA
#define IFLA_STATS_RTA(r) \
	((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct if_stats_msg))))
#endif

/* User defined nlmsg_type which is used mostly for logging netlink
 * messages from dump file */
#define NLMSG_TSTAMP	15

#endif /* __LIBNETLINK_H__ */
Commit	Line	Data
	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	#ifndef __LIBNETLINK_H__
	3	#define __LIBNETLINK_H__ 1
	4
	5	#include <stdio.h>
	6	#include <string.h>
	7	#include <asm/types.h>
	8	#include <linux/netlink.h>
	9	#include <linux/rtnetlink.h>
	10	#include <linux/if_link.h>
	11	#include <linux/if_addr.h>
	12	#include <linux/neighbour.h>
	13	#include <linux/netconf.h>
	14	#include <arpa/inet.h>
	15
	16	struct rtnl_handle {
	17	int fd;
	18	struct sockaddr_nl local;
	19	struct sockaddr_nl peer;
	20	__u32 seq;
	21	__u32 dump;
	22	int proto;
	23	FILE *dump_fp;
	24	#define RTNL_HANDLE_F_LISTEN_ALL_NSID 0x01
	25	#define RTNL_HANDLE_F_SUPPRESS_NLERR 0x02
	26	int flags;
	27	};
	28
	29	struct nlmsg_list {
	30	struct nlmsg_list *next;
	31	struct nlmsghdr h;
	32	};
	33
	34	struct nlmsg_chain {
	35	struct nlmsg_list *head;
	36	struct nlmsg_list *tail;
	37	};
	38
	39	extern int rcvbuf;
	40
	41	int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions)
	42	__attribute__((warn_unused_result));
	43
	44	int rtnl_open_byproto(struct rtnl_handle *rth, unsigned int subscriptions,
	45	int protocol)
	46	__attribute__((warn_unused_result));
	47
	48	void rtnl_close(struct rtnl_handle *rth);
	49
	50	int rtnl_addrdump_req(struct rtnl_handle *rth, int family)
	51	__attribute__((warn_unused_result));
	52	int rtnl_addrlbldump_req(struct rtnl_handle *rth, int family)
	53	__attribute__((warn_unused_result));
	54	int rtnl_routedump_req(struct rtnl_handle *rth, int family)
	55	__attribute__((warn_unused_result));
	56	int rtnl_ruledump_req(struct rtnl_handle *rth, int family)
	57	__attribute__((warn_unused_result));
	58	int rtnl_neighdump_req(struct rtnl_handle *rth, int family)
	59	__attribute__((warn_unused_result));
	60	int rtnl_neightbldump_req(struct rtnl_handle *rth, int family)
	61	__attribute__((warn_unused_result));
	62	int rtnl_mdbdump_req(struct rtnl_handle *rth, int family)
	63	__attribute__((warn_unused_result));
	64	int rtnl_netconfdump_req(struct rtnl_handle *rth, int family)
	65	__attribute__((warn_unused_result));
	66	int rtnl_nsiddump_req(struct rtnl_handle *rth, int family)
	67	__attribute__((warn_unused_result));
	68
	69	int rtnl_linkdump_req(struct rtnl_handle *rth, int fam)
	70	__attribute__((warn_unused_result));
	71	int rtnl_linkdump_req_filter(struct rtnl_handle *rth, int fam, __u32 filt_mask)
	72	__attribute__((warn_unused_result));
	73
	74	typedef int (req_filter_fn_t)(struct nlmsghdr nlh, int reqlen);
	75
	76	int rtnl_linkdump_req_filter_fn(struct rtnl_handle *rth, int fam,
	77	req_filter_fn_t fn)
	78	__attribute__((warn_unused_result));
	79	int rtnl_wilddump_stats_req_filter(struct rtnl_handle *rth, int fam, int type,
	80	__u32 filt_mask)
	81	__attribute__((warn_unused_result));
	82	int rtnl_dump_request(struct rtnl_handle rth, int type, void req,
	83	int len)
	84	__attribute__((warn_unused_result));
	85	int rtnl_dump_request_n(struct rtnl_handle rth, struct nlmsghdr n)
	86	__attribute__((warn_unused_result));
	87
	88	struct rtnl_ctrl_data {
	89	int nsid;
	90	};
	91
	92	typedef int (rtnl_filter_t)(const struct sockaddr_nl ,
	93	struct nlmsghdr n, void );
	94
	95	typedef int (rtnl_listen_filter_t)(const struct sockaddr_nl ,
	96	struct rtnl_ctrl_data *,
	97	struct nlmsghdr n, void );
	98
	99	typedef int (nl_ext_ack_fn_t)(const char errmsg, uint32_t off,
	100	const struct nlmsghdr *inner_nlh);
	101
	102	struct rtnl_dump_filter_arg {
	103	rtnl_filter_t filter;
	104	void *arg1;
	105	__u16 nc_flags;
	106	};
	107
	108	int rtnl_dump_filter_l(struct rtnl_handle *rth,
	109	const struct rtnl_dump_filter_arg *arg);
	110	int rtnl_dump_filter_nc(struct rtnl_handle *rth,
	111	rtnl_filter_t filter,
	112	void *arg, __u16 nc_flags);
	113	#define rtnl_dump_filter(rth, filter, arg) \
	114	rtnl_dump_filter_nc(rth, filter, arg, 0)
	115	int rtnl_talk(struct rtnl_handle rtnl, struct nlmsghdr n,
	116	struct nlmsghdr **answer)
	117	__attribute__((warn_unused_result));
	118	int rtnl_talk_iov(struct rtnl_handle rtnl, struct iovec iovec, size_t iovlen,
	119	struct nlmsghdr **answer)
	120	__attribute__((warn_unused_result));
	121	int rtnl_talk_extack(struct rtnl_handle rtnl, struct nlmsghdr n,
	122	struct nlmsghdr **answer, nl_ext_ack_fn_t errfn)
	123	__attribute__((warn_unused_result));
	124	int rtnl_talk_suppress_rtnl_errmsg(struct rtnl_handle rtnl, struct nlmsghdr n,
	125	struct nlmsghdr **answer)
	126	__attribute__((warn_unused_result));
	127	int rtnl_send(struct rtnl_handle rth, const void buf, int)
	128	__attribute__((warn_unused_result));
	129	int rtnl_send_check(struct rtnl_handle rth, const void buf, int)
	130	__attribute__((warn_unused_result));
	131	int nl_dump_ext_ack(const struct nlmsghdr *nlh, nl_ext_ack_fn_t errfn);
	132
	133	int addattr(struct nlmsghdr *n, int maxlen, int type);
	134	int addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data);
	135	int addattr16(struct nlmsghdr *n, int maxlen, int type, __u16 data);
	136	int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data);
	137	int addattr64(struct nlmsghdr *n, int maxlen, int type, __u64 data);
	138	int addattrstrz(struct nlmsghdr n, int maxlen, int type, const char data);
	139
	140	int addattr_l(struct nlmsghdr *n, int maxlen, int type,
	141	const void *data, int alen);
	142	int addraw_l(struct nlmsghdr n, int maxlen, const void data, int len);
	143	struct rtattr addattr_nest(struct nlmsghdr n, int maxlen, int type);
	144	int addattr_nest_end(struct nlmsghdr n, struct rtattr nest);
	145	struct rtattr addattr_nest_compat(struct nlmsghdr n, int maxlen, int type,
	146	const void *data, int len);
	147	int addattr_nest_compat_end(struct nlmsghdr n, struct rtattr nest);
	148	int rta_addattr8(struct rtattr *rta, int maxlen, int type, __u8 data);
	149	int rta_addattr16(struct rtattr *rta, int maxlen, int type, __u16 data);
	150	int rta_addattr32(struct rtattr *rta, int maxlen, int type, __u32 data);
	151	int rta_addattr64(struct rtattr *rta, int maxlen, int type, __u64 data);
	152	int rta_addattr_l(struct rtattr *rta, int maxlen, int type,
	153	const void *data, int alen);
	154
	155	int parse_rtattr(struct rtattr tb[], int max, struct rtattr rta, int len);
	156	int parse_rtattr_flags(struct rtattr tb[], int max, struct rtattr rta,
	157	int len, unsigned short flags);
	158	int parse_rtattr_byindex(struct rtattr *tb[], int max,
	159	struct rtattr *rta, int len);
	160	struct rtattr parse_rtattr_one(int type, struct rtattr rta, int len);
	161	int __parse_rtattr_nested_compat(struct rtattr tb[], int max, struct rtattr rta, int len);
	162
	163	struct rtattr rta_nest(struct rtattr rta, int maxlen, int type);
	164	int rta_nest_end(struct rtattr rta, struct rtattr nest);
	165
	166	#define RTA_TAIL(rta) \
	167	((struct rtattr ) (((void ) (rta)) + \
	168	RTA_ALIGN((rta)->rta_len)))
	169
	170	#define parse_rtattr_nested(tb, max, rta) \
	171	(parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)))
	172
	173	#define parse_rtattr_one_nested(type, rta) \
	174	(parse_rtattr_one(type, RTA_DATA(rta), RTA_PAYLOAD(rta)))
	175
	176	#define parse_rtattr_nested_compat(tb, max, rta, data, len) \
	177	({ data = RTA_PAYLOAD(rta) >= len ? RTA_DATA(rta) : NULL; \
	178	__parse_rtattr_nested_compat(tb, max, rta, len); })
	179
	180	static inline __u8 rta_getattr_u8(const struct rtattr *rta)
	181	{
	182	return (__u8 )RTA_DATA(rta);
	183	}
	184	static inline __u16 rta_getattr_u16(const struct rtattr *rta)
	185	{
	186	return (__u16 )RTA_DATA(rta);
	187	}
	188	static inline __be16 rta_getattr_be16(const struct rtattr *rta)
	189	{
	190	return ntohs(rta_getattr_u16(rta));
	191	}
	192	static inline __u32 rta_getattr_u32(const struct rtattr *rta)
	193	{
	194	return (__u32 )RTA_DATA(rta);
	195	}
	196	static inline __be32 rta_getattr_be32(const struct rtattr *rta)
	197	{
	198	return ntohl(rta_getattr_u32(rta));
	199	}
	200	static inline __u64 rta_getattr_u64(const struct rtattr *rta)
	201	{
	202	__u64 tmp;
	203
	204	memcpy(&tmp, RTA_DATA(rta), sizeof(__u64));
	205	return tmp;
	206	}
	207	static inline const char rta_getattr_str(const struct rtattr rta)
	208	{
	209	return (const char *)RTA_DATA(rta);
	210	}
	211
	212	int rtnl_listen_all_nsid(struct rtnl_handle *);
	213	int rtnl_listen(struct rtnl_handle *, rtnl_listen_filter_t handler,
	214	void *jarg);
	215	int rtnl_from_file(FILE *, rtnl_listen_filter_t handler,
	216	void *jarg);
	217
	218	#define NLMSG_TAIL(nmsg) \
	219	((struct rtattr ) (((void ) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
	220
	221	#ifndef IFA_RTA
	222	#define IFA_RTA(r) \
	223	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
	224	#endif
	225	#ifndef IFA_PAYLOAD
	226	#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg))
	227	#endif
	228
	229	#ifndef IFLA_RTA
	230	#define IFLA_RTA(r) \
	231	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
	232	#endif
	233	#ifndef IFLA_PAYLOAD
	234	#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ifinfomsg))
	235	#endif
	236
	237	#ifndef NDA_RTA
	238	#define NDA_RTA(r) \
	239	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct ndmsg))))
	240	#endif
	241	#ifndef NDA_PAYLOAD
	242	#define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ndmsg))
	243	#endif
	244
	245	#ifndef NDTA_RTA
	246	#define NDTA_RTA(r) \
	247	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct ndtmsg))))
	248	#endif
	249	#ifndef NDTA_PAYLOAD
	250	#define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ndtmsg))
	251	#endif
	252
	253	#ifndef NETNS_RTA
	254	#define NETNS_RTA(r) \
	255	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct rtgenmsg))))
	256	#endif
	257	#ifndef NETNS_PAYLOAD
	258	#define NETNS_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct rtgenmsg))
	259	#endif
	260
	261	#ifndef IFLA_STATS_RTA
	262	#define IFLA_STATS_RTA(r) \
	263	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct if_stats_msg))))
	264	#endif
	265
	266	/* User defined nlmsg_type which is used mostly for logging netlink
	267	* messages from dump file */
	268	#define NLMSG_TSTAMP 15
	269
	270	#endif /* __LIBNETLINK_H__ */