From a68e72a6c2b25218009a42cf088b66b9307a2111 Mon Sep 17 00:00:00 2001 From: laforge Date: Mon, 29 Jul 2002 16:39:07 +0000 Subject: current development state of libnfnetlink/libctnetlink (incomplete) --- libnfnetlink.h | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 libnfnetlink.h (limited to 'libnfnetlink.h') diff --git a/libnfnetlink.h b/libnfnetlink.h new file mode 100644 index 0000000..0c9bd42 --- /dev/null +++ b/libnfnetlink.h @@ -0,0 +1,56 @@ +/* libnfnetlink.h: Header file for generic netfilter netlink interface + * + * (C) 2002 Harald Welte + */ + +#ifndef __LIBNFNETLINK_H +#define __LIBNFNETLINK_H + +#include +#include +#include + +#define NFNL_BUFFSIZE 8192 + +struct nfnl_handle { + int fd; + struct sockaddr_nl local; + struct sockaddr_nl peer; + u_int8_t subsys_id; + u_int32_t seq; + u_int32_t dump; +}; + +/* get a new library handle */ +extern int nfnl_open(struct nfnl_handle *nfnlh, u_int8_t subsys_id, + unsigned int subscriptions); +extern int nfnl_close(struct nfnl_handle *nfnlh); + +int nfnl_send(struct nfnl_handle *nfnlh, struct nlmsghdr *n); + + +void nfnl_fill_hdr(struct nfnl_handle *nfnlh, + struct nlmsghdr *nlh, int len, + u_int8_t family, + u_int16_t msg_type, + u_int16_t msg_flags); + +int nfnl_listen(struct nfnl_handle *nfnlh, + int (*handler)(struct sockaddr_nl *, struct nlmsghdr *n, + void *), void *jarg); + + + + +/* nfnl attribute handling functions */ +int nfnl_addattr_l(struct nlmsghdr *n, int maxlen, int type, void *data, + int alen); +int nfnl_addattr32(struct nlmsghdr *n, int maxlen, int type, + u_int32_t data); +int nfnl_nfa_addattr_l(struct nfattr *nfa, int maxlen, int type, void *data, + int alen); +int nfnl_nfa_addattr32(struct nfattr *nfa, int maxlen, int type, + u_int32_t data); +int nfnl_parse_attr(struct nfattr *tb[], int max, struct nfattr *nfa, int len); + +#endif /* __LIBNFNETLINK_H */ -- cgit v1.2.3