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PATH: usr / include / linux / netfilter

#ifndef _NFNETLINK_COMPAT_H
#define _NFNETLINK_COMPAT_H

#include <linux/types.h>

/* Old nfnetlink macros for userspace */

/* nfnetlink groups: Up to 32 maximum */
#define NF_NETLINK_CONNTRACK_NEW 		0x00000001
#define NF_NETLINK_CONNTRACK_UPDATE		0x00000002
#define NF_NETLINK_CONNTRACK_DESTROY		0x00000004
#define NF_NETLINK_CONNTRACK_EXP_NEW		0x00000008
#define NF_NETLINK_CONNTRACK_EXP_UPDATE		0x00000010
#define NF_NETLINK_CONNTRACK_EXP_DESTROY	0x00000020

/* Generic structure for encapsulation optional netfilter information.
 * It is reminiscent of sockaddr, but with sa_family replaced
 * with attribute type.
 * ! This should someday be put somewhere generic as now rtnetlink and
 * ! nfnetlink use the same attributes methods. - J. Schulist.
 */

struct nfattr {
	__u16 nfa_len;
	__u16 nfa_type;	/* we use 15 bits for the type, and the highest
				 * bit to indicate whether the payload is nested */
};

/* FIXME: Apart from NFNL_NFA_NESTED shamelessly copy and pasted from
 * rtnetlink.h, it's time to put this in a generic file */

#define NFNL_NFA_NEST	0x8000
#define NFA_TYPE(attr) 	((attr)->nfa_type & 0x7fff)

#define NFA_ALIGNTO     4
#define NFA_ALIGN(len)	(((len) + NFA_ALIGNTO - 1) & ~(NFA_ALIGNTO - 1))
#define NFA_OK(nfa,len)	((len) > 0 && (nfa)->nfa_len >= sizeof(struct nfattr) \
	&& (nfa)->nfa_len <= (len))
#define NFA_NEXT(nfa,attrlen)	((attrlen) -= NFA_ALIGN((nfa)->nfa_len), \
	(struct nfattr *)(((char *)(nfa)) + NFA_ALIGN((nfa)->nfa_len)))
#define NFA_LENGTH(len)	(NFA_ALIGN(sizeof(struct nfattr)) + (len))
#define NFA_SPACE(len)	NFA_ALIGN(NFA_LENGTH(len))
#define NFA_DATA(nfa)   ((void *)(((char *)(nfa)) + NFA_LENGTH(0)))
#define NFA_PAYLOAD(nfa) ((int)((nfa)->nfa_len) - NFA_LENGTH(0))
#define NFA_NEST(skb, type) \
({	struct nfattr *__start = (struct nfattr *)skb_tail_pointer(skb); \
	NFA_PUT(skb, (NFNL_NFA_NEST | type), 0, NULL); \
	__start;  })
#define NFA_NEST_END(skb, start) \
({      (start)->nfa_len = skb_tail_pointer(skb) - (unsigned char *)(start); \
        (skb)->len; })
#define NFA_NEST_CANCEL(skb, start) \
({      if (start) \
                skb_trim(skb, (unsigned char *) (start) - (skb)->data); \
        -1; })

#define NFM_NFA(n)      ((struct nfattr *)(((char *)(n)) \
        + NLMSG_ALIGN(sizeof(struct nfgenmsg))))
#define NFM_PAYLOAD(n)  NLMSG_PAYLOAD(n, sizeof(struct nfgenmsg))

#endif /* _NFNETLINK_COMPAT_H */

[-] xt_helper.h [edit]
[-] xt_HMARK.h [edit]
[-] xt_time.h [edit]
[-] xt_dccp.h [edit]
[-] xt_IDLETIMER.h [edit]
[-] xt_recent.h [edit]
[-] nfnetlink_acct.h [edit]
[-] xt_mac.h [edit]
[-] xt_rateest.h [edit]
[-] x_tables.h [edit]
[-] xt_mark.h [edit]
[-] xt_devgroup.h [edit]
[-] xt_connlimit.h [edit]
[-] nf_conntrack_ftp.h [edit]
[-] nfnetlink_cthelper.h [edit]
[+] ..
[-] xt_u32.h [edit]
[-] xt_rpfilter.h [edit]
[-] nf_tables_compat.h [edit]
[-] xt_policy.h [edit]
[-] xt_CLASSIFY.h [edit]
[-] xt_quota.h [edit]
[-] xt_TCPOPTSTRIP.h [edit]
[-] xt_comment.h [edit]
[-] xt_sctp.h [edit]
[-] xt_tcpudp.h [edit]
[-] xt_tcpmss.h [edit]
[-] xt_nfacct.h [edit]
[-] xt_TCPMSS.h [edit]
[-] xt_length.h [edit]
[-] xt_connlabel.h [edit]
[-] xt_cpu.h [edit]
[-] xt_osf.h [edit]
[-] xt_bpf.h [edit]
[-] xt_hashlimit.h [edit]
[-] xt_NFLOG.h [edit]
[-] nfnetlink_conntrack.h [edit]
[-] xt_AUDIT.h [edit]
[-] xt_pkttype.h [edit]
[-] xt_set.h [edit]
[-] xt_string.h [edit]
[-] xt_ipvs.h [edit]
[-] xt_socket.h [edit]
[-] nf_tables.h [edit]
[-] xt_CONNSECMARK.h [edit]
[-] xt_CONNMARK.h [edit]
[-] xt_NFQUEUE.h [edit]
[-] nf_nat.h [edit]
[-] xt_connbytes.h [edit]
[-] xt_addrtype.h [edit]
[-] nfnetlink_log.h [edit]
[-] xt_LED.h [edit]
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[-] xt_state.h [edit]
[-] xt_realm.h [edit]
[-] xt_SECMARK.h [edit]
[-] xt_ecn.h [edit]
[-] xt_cluster.h [edit]
[+] ipset
[-] xt_connmark.h [edit]
[-] xt_esp.h [edit]
[-] xt_TEE.h [edit]
[-] xt_owner.h [edit]
[-] nfnetlink_compat.h [edit]
[-] xt_cgroup.h [edit]
[-] xt_CHECKSUM.h [edit]
[-] xt_TPROXY.h [edit]
[-] xt_CT.h [edit]
[-] nf_conntrack_tcp.h [edit]
[-] xt_iprange.h [edit]
[-] nf_conntrack_sctp.h [edit]
[-] xt_DSCP.h [edit]
[-] nf_conntrack_common.h [edit]
[-] xt_MARK.h [edit]
[-] nfnetlink.h [edit]
[-] xt_conntrack.h [edit]
[-] nfnetlink_cttimeout.h [edit]
[-] xt_limit.h [edit]
[-] xt_RATEEST.h [edit]
[-] nfnetlink_queue.h [edit]
[-] nf_conntrack_tuple_common.h [edit]
[-] xt_dscp.h [edit]
[-] xt_statistic.h [edit]
[-] xt_multiport.h [edit]