1 /* $NetBSD: mln_rule.c,v 1.1.1.2 2012/07/22 13:44:25 darrenr Exp $ */
2
3 /*
4 * Copyright (C) 2012 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 */
9
10 #include <sys/param.h>
11 #include <sys/systm.h>
12 #include <sys/conf.h>
13 #include <sys/proc.h>
14 #include <sys/ioctl.h>
15 #include <sys/kernel.h>
16 #include <sys/mbuf.h>
17 #include <sys/exec.h>
18 #include <sys/socket.h>
19 #include <net/if.h>
20 #include <netinet/in_systm.h>
21 #include <netinet/in.h>
22 #include <netinet/ip.h>
23 #include <net/route.h>
24 #include <netinet/ip_var.h>
25 #include <netinet/tcp.h>
26 #include <netinet/tcpip.h>
27 #include <sys/lkm.h>
28 #include "ip_compat.h"
29 #include "ip_fil.h"
30 #include "ip_rules.h"
31
32
33 static int ipfruleaction __P((struct lkm_table *, int));
34
35 #ifdef IPFILTER_LKM
36 # if NetBSD >= 199706
37 int ipfrule_lkmentry __P((struct lkm_table *, int, int));
38 # else
39 int xxxinit __P((struct lkm_table *, int, int));
40 # endif
41
42
43 MOD_MISC("IPFilter Rules");
44
45 # if NetBSD >= 199706
ipfrule_lkmentry(lkmtp,cmd,ver)46 int ipfrule_lkmentry(lkmtp, cmd, ver)
47 # else
48 int xxxinit(lkmtp, cmd, ver)
49 # endif
50 struct lkm_table *lkmtp;
51 int cmd, ver;
52 {
53 DISPATCH(lkmtp, cmd, ver, ipfruleaction, ipfruleaction, ipfruleaction);
54 }
55
ipfruleaction(lkmtp,cmd)56 static int ipfruleaction(lkmtp, cmd)
57 struct lkm_table *lkmtp;
58 int cmd;
59 {
60 int err = 0;
61
62 switch (cmd)
63 {
64 case LKM_E_LOAD :
65 if (lkmexists(lkmtp))
66 return EEXIST;
67
68 err = ipfrule_add();
69 if (!err)
70 ipf_refcnt++;
71 break;
72 case LKM_E_UNLOAD :
73 err = ipfrule_remove();
74 if (!err)
75 ipf_refcnt--;
76 break;
77 case LKM_E_STAT :
78 break;
79 default:
80 err = EIO;
81 break;
82 }
83 return err;
84 }
85 #endif /* IPFILTER_LKM */
86