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git.proxmox.com Git - mirror_iproute2.git/blob - include/libnetlink.h
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);
37 extern int rtnl_send_check(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 struct rtattr
*addattr_nest(struct nlmsghdr
*n
, int maxlen
, int type
);
43 extern int addattr_nest_end(struct nlmsghdr
*n
, struct rtattr
*nest
);
44 extern struct rtattr
*addattr_nest_compat(struct nlmsghdr
*n
, int maxlen
, int type
, const void *data
, int len
);
45 extern int addattr_nest_compat_end(struct nlmsghdr
*n
, struct rtattr
*nest
);
46 extern int rta_addattr32(struct rtattr
*rta
, int maxlen
, int type
, __u32 data
);
47 extern int rta_addattr_l(struct rtattr
*rta
, int maxlen
, int type
, const void *data
, int alen
);
49 extern int parse_rtattr(struct rtattr
*tb
[], int max
, struct rtattr
*rta
, int len
);
50 extern int parse_rtattr_byindex(struct rtattr
*tb
[], int max
, struct rtattr
*rta
, int len
);
51 extern int __parse_rtattr_nested_compat(struct rtattr
*tb
[], int max
, struct rtattr
*rta
, int len
);
53 #define parse_rtattr_nested(tb, max, rta) \
54 (parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)))
56 #define parse_rtattr_nested_compat(tb, max, rta, data, len) \
57 ({ data = RTA_PAYLOAD(rta) >= len ? RTA_DATA(rta) : NULL; \
58 __parse_rtattr_nested_compat(tb, max, rta, len); })
60 extern int rtnl_listen(struct rtnl_handle
*, rtnl_filter_t handler
,
62 extern int rtnl_from_file(FILE *, rtnl_filter_t handler
,
65 #define NLMSG_TAIL(nmsg) \
66 ((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
70 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
73 #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
78 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
81 #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
86 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg))))
89 #define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg))
94 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndtmsg))))
97 #define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg))
100 #endif /* __LIBNETLINK_H__ */