path: root/include
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authorPablo Neira Ayuso <>2012-04-13 13:13:34 +0200
committerPablo Neira Ayuso <>2012-05-26 16:10:34 +0200
commit95b3bf6576165e1bbe23d55d5f15b7ebf9c98dc4 (patch)
treec1df552ea77057aaf83ca7b0f00504d0cdaf7d0d /include
parenta84175b8c3b167bf0e18a9ce1f6bb48a62c64127 (diff)
conntrack: add new API to build/parse ctnetlink messages using libmnl
This patch adds support to build and to parse netlink messages from/to one user-space nf_conntrack object. It uses libmnl, thus libnetfilter_conntrack now depends on this library. This is the first patch in the direction of removing the dependency on the veteran libnfnetlink. I have decided to update LIBVERSION in this patch. I know it's recommended to do this before releasing the software. I prefer to do this so snapshot packages get the correct LIBVERSION. Signed-off-by: Pablo Neira Ayuso <>
Diffstat (limited to 'include')
1 files changed, 6 insertions, 0 deletions
diff --git a/include/libnetfilter_conntrack/libnetfilter_conntrack.h b/include/libnetfilter_conntrack/libnetfilter_conntrack.h
index 5518418..87c73a3 100644
--- a/include/libnetfilter_conntrack/libnetfilter_conntrack.h
+++ b/include/libnetfilter_conntrack/libnetfilter_conntrack.h
@@ -533,6 +533,12 @@ int nfct_build_query(struct nfnl_subsys_handle *ssh,
void *req,
unsigned int size);
+/* New low level API: netlink functions */
+extern int nfct_nlmsg_build(struct nlmsghdr *nlh, const struct nf_conntrack *ct);
+extern int nfct_nlmsg_parse(const struct nlmsghdr *nlh, struct nf_conntrack *ct);
+extern int nfct_payload_parse(const void *payload, size_t payload_len, uint16_t l3num, struct nf_conntrack *ct);
* NEW expectation API