include/libnetlink.h

   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>
   7
   8 struct rtnl_handle
   9 {
  10         int                     fd;
  11         struct sockaddr_nl      local;
  12         struct sockaddr_nl      peer;
  13         __u32                   seq;
  14         __u32                   dump;
  15 };
  16
  17 extern int rtnl_open(struct rtnl_handle *rth, unsigned subscriptions);
  18 extern int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions, int protocol);
  19 extern void rtnl_close(struct rtnl_handle *rth);
  20 extern int rtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type);
  21 extern int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len);
  22
  23 typedef int (*rtnl_filter_t)(const struct sockaddr_nl *, const struct nlmsghdr *n, void *);
  24 extern int rtnl_dump_filter(struct rtnl_handle *rth, rtnl_filter_t filter,
  25                             void *arg1,
  26                             rtnl_filter_t junk,
  27                             void *arg2);
  28 extern int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
  29                      unsigned groups, struct nlmsghdr *answer,
  30                      rtnl_filter_t junk,
  31                      void *jarg);
  32 extern int rtnl_send(struct rtnl_handle *rth, const char *buf, int);
  33
  34
  35 extern int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data);
  36 extern int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen);
  37 extern int rta_addattr32(struct rtattr *rta, int maxlen, int type, __u32 data);
  38 extern int rta_addattr_l(struct rtattr *rta, int maxlen, int type, const void *data, int alen);
  39
  40 extern int parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len);
  41 extern int parse_rtattr_byindex(struct rtattr *tb[], int max, struct rtattr *rta, int len);
  42
  43 extern int rtnl_listen(struct rtnl_handle *, rtnl_filter_t handler,
  44                        void *jarg);
  45 extern int rtnl_from_file(FILE *, rtnl_filter_t handler,
  46                        void *jarg);
  47
  48 #endif /* __LIBNETLINK_H__ */
  49