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libnfnetlink new API #3

RFC New Pablo Neira Ayuso 1 participant 1 message Aug 21, 2006 netfilter

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Pablo Neira Ayuso

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RFC 1/1 libnfnetlink new API #3

Hi,

This patch follows from:
http://patchwork.netfilter.org/netfilter-devel/patch.pl?id=3695

Now we do sequence tracking for queries, I assume that sequence number 0 is only used by events.

Wait for your comments,
Pablo

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The dawn of the fourth age of Linux firewalling is coming; a time of great struggle and heroic deeds -- J.Kadlecsik got inspired by J.Morris
libnfnetlink/libnfnetlink.h +29 -0
Index: include/libnfnetlink/libnfnetlink.h
===================================================================
@@ -98,6 +98,35 @@
 					  const unsigned char *buf,
 					  size_t len);
 
+/* join a certain netlink multicast group */
+extern int nfnl_join(const struct nfnl_handle *nfnlh, unsigned int group);
+
+/* process a netlink message */
+extern int nfnl_process(struct nfnl_handle *h,
+			const unsigned char *buf,
+			size_t len);
+
+/* iterator API */
+
+extern struct nfnl_iterator *
+nfnl_iterator_create(const struct nfnl_handle *h,
+		     const char *buf,
+		     size_t len);
+
+extern void nfnl_iterator_destroy(struct nfnl_iterator *it);
+
+extern int nfnl_iterator_process(struct nfnl_handle *h,
+				 struct nfnl_iterator *it);
+
+extern int nfnl_iterator_next(const struct nfnl_handle *h,
+			      struct nfnl_iterator *it);
+
+/* replacement for nfnl_listen */
+extern int nfnl_catch(struct nfnl_handle *h);
+
+/* replacement for nfnl_talk */
+extern int nfnl_query(struct nfnl_handle *h, struct nlmsghdr *nlh);
+
 #define nfnl_attr_present(tb, attr)			\
 	(tb[attr-1])
libnfnetlink.c +598 -61

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