diff options
Diffstat (limited to 'pimd/mtracebis_netlink.h')
| -rw-r--r-- | pimd/mtracebis_netlink.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/pimd/mtracebis_netlink.h b/pimd/mtracebis_netlink.h new file mode 100644 index 0000000..46e176e --- /dev/null +++ b/pimd/mtracebis_netlink.h @@ -0,0 +1,136 @@ +/* + * libnetlink.c RTnetlink service routines. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> + * + */ + +#ifdef __linux__ + +#ifndef __LIBNETLINK_H__ +#define __LIBNETLINK_H__ 1 + +#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> + +struct rtnl_handle { + int fd; + struct sockaddr_nl local; + struct sockaddr_nl peer; + __u32 seq; + __u32 dump; +}; + +extern int rcvbuf; + +extern int rtnl_open(struct rtnl_handle *rth, unsigned subscriptions); +extern int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions, + int protocol); +extern void rtnl_close(struct rtnl_handle *rth); +extern int rtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type); +extern int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, + int len); + +typedef int (*rtnl_filter_t)(const struct sockaddr_nl *, struct nlmsghdr *n, + void *); + +struct rtnl_dump_filter_arg { + rtnl_filter_t filter; + void *arg1; + rtnl_filter_t junk; + void *arg2; +}; + +extern int rtnl_dump_filter_l(struct rtnl_handle *rth, + const struct rtnl_dump_filter_arg *arg); +extern int rtnl_dump_filter(struct rtnl_handle *rth, rtnl_filter_t filter, + void *arg1, rtnl_filter_t junk, void *arg2); + +extern int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer, + unsigned groups, struct nlmsghdr *answer, + rtnl_filter_t junk, void *jarg); +extern int rtnl_send(struct rtnl_handle *rth, const char *buf, int); +extern int rtnl_send_check(struct rtnl_handle *rth, const char *buf, int); + +extern int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data); +extern int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, + int alen); +extern int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len); +extern struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type); +extern int addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest); +extern struct rtattr *addattr_nest_compat(struct nlmsghdr *n, int maxlen, + int type, const void *data, int len); +extern int addattr_nest_compat_end(struct nlmsghdr *n, struct rtattr *nest); +extern int rta_addattr32(struct rtattr *rta, int maxlen, int type, __u32 data); +extern int rta_addattr_l(struct rtattr *rta, int maxlen, int type, + const void *data, int alen); + +extern int parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, + int len); +extern int parse_rtattr_byindex(struct rtattr *tb[], int max, + struct rtattr *rta, int len); +extern int __parse_rtattr_nested_compat(struct rtattr *tb[], int max, + struct rtattr *rta, int len); + +#define parse_rtattr_nested(tb, max, rta) \ + (parse_rtattr((tb), (max), 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); \ + }) + +extern int rtnl_listen(struct rtnl_handle *, rtnl_filter_t handler, void *jarg); +extern int rtnl_from_file(FILE *, rtnl_filter_t handler, void *jarg); + +#define NLMSG_TAIL(nmsg) \ + ((struct rtattr *)(((uint8_t *)(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 + +#endif /* __LIBNETLINK_H__ */ + +#endif /* __linux__ */ |