1/*
2 * Copyright (C) 2012 by Darren Reed.
3 *
4 * See the IPFILTER.LICENCE file for details on licencing.
5 *
6 */
7
8#include <sys/param.h>
9#include <sys/systm.h>
10#include <sys/conf.h>
11#include <sys/proc.h>
12#include <sys/ioctl.h>
13#include <sys/kernel.h>
14#include <sys/mbuf.h>
15#include <sys/exec.h>
16#include <sys/socket.h>
17#include <net/if.h>
18#include <netinet/in_systm.h>
19#include <netinet/in.h>
20#include <netinet/ip.h>
21#include <net/route.h>
22#include <netinet/ip_var.h>
23#include <netinet/tcp.h>
24#include <netinet/tcpip.h>
25#include <sys/lkm.h>
26#include "ip_compat.h"
27#include "ip_fil.h"
28#include "ip_rules.h"
29
30
31static int ipfruleaction __P((struct lkm_table *, int));
32
33#ifdef IPFILTER_LKM
34# if NetBSD >= 199706
35int	ipfrule_lkmentry __P((struct lkm_table *, int, int));
36# else
37int	xxxinit __P((struct lkm_table *, int, int));
38# endif
39
40
41MOD_MISC("IPFilter Rules");
42
43# if NetBSD >= 199706
44int ipfrule_lkmentry(lkmtp, cmd, ver)
45# else
46int xxxinit(lkmtp, cmd, ver)
47# endif
48	struct lkm_table *lkmtp;
49	int cmd, ver;
50{
51	DISPATCH(lkmtp, cmd, ver, ipfruleaction, ipfruleaction, ipfruleaction);
52}
53
54static int ipfruleaction(lkmtp, cmd)
55	struct lkm_table *lkmtp;
56	int cmd;
57{
58	int err = 0;
59
60	switch (cmd)
61	{
62	case LKM_E_LOAD :
63		if (lkmexists(lkmtp))
64			return EEXIST;
65
66		err = ipfrule_add();
67		if (!err)
68			ipf_refcnt++;
69		break;
70	case LKM_E_UNLOAD :
71		err = ipfrule_remove();
72		if (!err)
73			ipf_refcnt--;
74		break;
75	case LKM_E_STAT :
76		break;
77	default:
78		err = EIO;
79		break;
80	}
81	return err;
82}
83#endif /* IPFILTER_LKM */
84