| #ifndef _NFNETLINK_H |
| #define _NFNETLINK_H |
| |
| |
| #include <linux/netlink.h> |
| #include <linux/capability.h> |
| #include <net/netlink.h> |
| #include <uapi/linux/netfilter/nfnetlink.h> |
| |
| struct nfnl_callback { |
| int (*call)(struct sock *nl, struct sk_buff *skb, |
| const struct nlmsghdr *nlh, |
| const struct nlattr * const cda[]); |
| int (*call_rcu)(struct sock *nl, struct sk_buff *skb, |
| const struct nlmsghdr *nlh, |
| const struct nlattr * const cda[]); |
| int (*call_batch)(struct sock *nl, struct sk_buff *skb, |
| const struct nlmsghdr *nlh, |
| const struct nlattr * const cda[]); |
| const struct nla_policy *policy; /* netlink attribute policy */ |
| const u_int16_t attr_count; /* number of nlattr's */ |
| }; |
| |
| struct nfnetlink_subsystem { |
| const char *name; |
| __u8 subsys_id; /* nfnetlink subsystem ID */ |
| __u8 cb_count; /* number of callbacks */ |
| const struct nfnl_callback *cb; /* callback for individual types */ |
| int (*commit)(struct sk_buff *skb); |
| int (*abort)(struct sk_buff *skb); |
| }; |
| |
| int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n); |
| int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n); |
| |
| int nfnetlink_has_listeners(struct net *net, unsigned int group); |
| struct sk_buff *nfnetlink_alloc_skb(struct net *net, unsigned int size, |
| u32 dst_portid, gfp_t gfp_mask); |
| int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 portid, |
| unsigned int group, int echo, gfp_t flags); |
| int nfnetlink_set_err(struct net *net, u32 portid, u32 group, int error); |
| int nfnetlink_unicast(struct sk_buff *skb, struct net *net, u32 portid, |
| int flags); |
| |
| void nfnl_lock(__u8 subsys_id); |
| void nfnl_unlock(__u8 subsys_id); |
| |
| #define MODULE_ALIAS_NFNL_SUBSYS(subsys) \ |
| MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys)) |
| |
| #endif /* _NFNETLINK_H */ |