diff options
Diffstat (limited to 'include/netlink.h')
| -rw-r--r-- | include/netlink.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/netlink.h b/include/netlink.h new file mode 100644 index 0000000..0df0cbb --- /dev/null +++ b/include/netlink.h @@ -0,0 +1,33 @@ +#ifndef _NETLINK_H_ +#define _NETLINK_H_ + +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> + +struct nf_conntrack; +struct nfct_handle; + +struct nfct_handle *nl_init_event_handler(void); +struct nlif_handle *nl_init_interface_handler(void); + +int nl_send_resync(struct nfct_handle *h); +void nl_resize_socket_buffer(struct nfct_handle *h); +int nl_dump_conntrack_table(struct nfct_handle *h); +int nl_flush_conntrack_table(struct nfct_handle *h); +int nl_get_conntrack(struct nfct_handle *h, const struct nf_conntrack *ct); +int nl_create_conntrack(struct nfct_handle *h, const struct nf_conntrack *ct, int timeout); +int nl_update_conntrack(struct nfct_handle *h, const struct nf_conntrack *ct, int timeout); +int nl_destroy_conntrack(struct nfct_handle *h, const struct nf_conntrack *ct); + +static inline int ct_is_related(const struct nf_conntrack *ct) +{ + return (nfct_attr_is_set(ct, ATTR_MASTER_L3PROTO) && + nfct_attr_is_set(ct, ATTR_MASTER_L4PROTO) && + ((nfct_attr_is_set(ct, ATTR_MASTER_IPV4_SRC) && + nfct_attr_is_set(ct, ATTR_MASTER_IPV4_DST)) || + (nfct_attr_is_set(ct, ATTR_MASTER_IPV6_SRC) && + nfct_attr_is_set(ct, ATTR_MASTER_IPV6_DST))) && + nfct_attr_is_set(ct, ATTR_MASTER_PORT_SRC) && + nfct_attr_is_set(ct, ATTR_MASTER_PORT_DST)); +} + +#endif |