osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1 | #ifndef __LIBNETLINK_H__ |
| 2 | #define __LIBNETLINK_H__ 1 |
| 3 | |
| 4 | #include <asm/types.h> |
| 5 | #include <linux/netlink.h> |
| 6 | #include <linux/rtnetlink.h> |
Stephen Hemminger | ead2ba7 | 2006-12-05 09:54:48 -0800 | [diff] [blame] | 7 | #include <linux/if_link.h> |
| 8 | #include <linux/if_addr.h> |
| 9 | #include <linux/neighbour.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 10 | |
| 11 | struct rtnl_handle |
| 12 | { |
| 13 | int fd; |
| 14 | struct sockaddr_nl local; |
| 15 | struct sockaddr_nl peer; |
| 16 | __u32 seq; |
| 17 | __u32 dump; |
| 18 | }; |
| 19 | |
| 20 | extern int rtnl_open(struct rtnl_handle *rth, unsigned subscriptions); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 21 | extern int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions, int protocol); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 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); |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 25 | |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 26 | typedef int (*rtnl_filter_t)(const struct sockaddr_nl *, |
osdl.net!shemminger | 50772dc | 2004-12-07 21:48:29 +0000 | [diff] [blame] | 27 | struct nlmsghdr *n, void *); |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 28 | extern int rtnl_dump_filter(struct rtnl_handle *rth, rtnl_filter_t filter, |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 29 | void *arg1, |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 30 | rtnl_filter_t junk, |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 31 | void *arg2); |
| 32 | extern int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer, |
| 33 | unsigned groups, struct nlmsghdr *answer, |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 34 | rtnl_filter_t junk, |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 35 | void *jarg); |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 36 | extern int rtnl_send(struct rtnl_handle *rth, const char *buf, int); |
Stephen Hemminger | f31a37f | 2008-01-31 21:38:58 -0800 | [diff] [blame] | 37 | extern int rtnl_send_check(struct rtnl_handle *rth, const char *buf, int); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 38 | |
| 39 | extern int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data); |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 40 | extern int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen); |
5!tgraf | a10ab08 | 2005-01-18 13:58:49 +0000 | [diff] [blame] | 41 | extern int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len); |
Patrick McHardy | 2f90c9c | 2007-08-14 11:21:19 -0700 | [diff] [blame] | 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); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 46 | extern int rta_addattr32(struct rtattr *rta, int maxlen, int type, __u32 data); |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 47 | extern int rta_addattr_l(struct rtattr *rta, int maxlen, int type, const void *data, int alen); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 48 | |
| 49 | extern int parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 50 | extern int parse_rtattr_byindex(struct rtattr *tb[], int max, struct rtattr *rta, int len); |
Patrick McHardy | 2f90c9c | 2007-08-14 11:21:19 -0700 | [diff] [blame] | 51 | extern int __parse_rtattr_nested_compat(struct rtattr *tb[], int max, struct rtattr *rta, int len); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 52 | |
5!tgraf | 753fca4 | 2005-01-18 22:11:58 +0000 | [diff] [blame] | 53 | #define parse_rtattr_nested(tb, max, rta) \ |
| 54 | (parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta))) |
| 55 | |
Patrick McHardy | 2f90c9c | 2007-08-14 11:21:19 -0700 | [diff] [blame] | 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); }) |
| 59 | |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 60 | extern int rtnl_listen(struct rtnl_handle *, rtnl_filter_t handler, |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 61 | void *jarg); |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 62 | extern int rtnl_from_file(FILE *, rtnl_filter_t handler, |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 63 | void *jarg); |
| 64 | |
5!tgraf | 370d67b | 2005-01-18 01:24:18 +0000 | [diff] [blame] | 65 | #define NLMSG_TAIL(nmsg) \ |
| 66 | ((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len))) |
| 67 | |
Stephen Hemminger | ead2ba7 | 2006-12-05 09:54:48 -0800 | [diff] [blame] | 68 | #ifndef IFA_RTA |
| 69 | #define IFA_RTA(r) \ |
| 70 | ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) |
| 71 | #endif |
| 72 | #ifndef IFA_PAYLOAD |
| 73 | #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) |
| 74 | #endif |
| 75 | |
| 76 | #ifndef IFLA_RTA |
| 77 | #define IFLA_RTA(r) \ |
| 78 | ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg)))) |
| 79 | #endif |
| 80 | #ifndef IFLA_PAYLOAD |
| 81 | #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg)) |
| 82 | #endif |
| 83 | |
| 84 | #ifndef NDA_RTA |
| 85 | #define NDA_RTA(r) \ |
| 86 | ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg)))) |
| 87 | #endif |
| 88 | #ifndef NDA_PAYLOAD |
| 89 | #define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg)) |
| 90 | #endif |
| 91 | |
| 92 | #ifndef NDTA_RTA |
| 93 | #define NDTA_RTA(r) \ |
| 94 | ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndtmsg)))) |
| 95 | #endif |
| 96 | #ifndef NDTA_PAYLOAD |
| 97 | #define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg)) |
| 98 | #endif |
| 99 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 100 | #endif /* __LIBNETLINK_H__ */ |
| 101 | |