1 #ifndef __LIBNETLINK_H__
2 #define __LIBNETLINK_H__ 1
5 #include <linux/netlink.h>
6 #include <linux/rtnetlink.h>
7 #include <linux/if_link.h>
8 #include <linux/if_addr.h>
9 #include <linux/neighbour.h>
14 struct sockaddr_nl local;
15 struct sockaddr_nl peer;
20 extern int rtnl_open(struct rtnl_handle *rth, unsigned subscriptions);
21 extern int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions, int protocol);
22 extern void rtnl_close(struct rtnl_handle *rth);
23 extern int rtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type);
24 extern int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len);
26 typedef int (*rtnl_filter_t)(const struct sockaddr_nl *,
27 struct nlmsghdr *n, void *);
28 extern int rtnl_dump_filter(struct rtnl_handle *rth, rtnl_filter_t filter,
32 extern int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
33 unsigned groups, struct nlmsghdr *answer,
36 extern int rtnl_send(struct rtnl_handle *rth, const char *buf, int);
39 extern int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data);
40 extern int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen);
41 extern int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len);
42 extern int rta_addattr32(struct rtattr *rta, int maxlen, int type, __u32 data);
43 extern int rta_addattr_l(struct rtattr *rta, int maxlen, int type, const void *data, int alen);
45 extern int parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len);
46 extern int parse_rtattr_byindex(struct rtattr *tb[], int max, struct rtattr *rta, int len);
48 #define parse_rtattr_nested(tb, max, rta) \
49 (parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)))
51 extern int rtnl_listen(struct rtnl_handle *, rtnl_filter_t handler,
53 extern int rtnl_from_file(FILE *, rtnl_filter_t handler,
56 #define NLMSG_TAIL(nmsg) \
57 ((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
61 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
64 #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
69 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
72 #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
77 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg))))
80 #define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg))
85 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndtmsg))))
88 #define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg))
91 #endif /* __LIBNETLINK_H__ */