xref: /dragonfly/sbin/ipfw3/ipfw3log.c (revision 73b5ca6b)
1 /*
2  * Copyright (c) 2014 - 2018 The DragonFly Project.  All rights reserved.
3  *
4  * This code is derived from software contributed to The DragonFly Project
5  * by Bill Yuan <bycn82@dragonflybsd.org>
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  *
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in
15  *    the documentation and/or other materials provided with the
16  *    distribution.
17  * 3. Neither the name of The DragonFly Project nor the names of its
18  *    contributors may be used to endorse or promote products derived
19  *    from this software without specific, prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #include <sys/param.h>
36 #include <sys/mbuf.h>
37 #include <sys/socket.h>
38 #include <sys/sockio.h>
39 #include <sys/sysctl.h>
40 #include <sys/time.h>
41 #include <sys/wait.h>
42 
43 #include <arpa/inet.h>
44 #include <ctype.h>
45 #include <dlfcn.h>
46 #include <err.h>
47 #include <errno.h>
48 #include <grp.h>
49 #include <limits.h>
50 #include <netdb.h>
51 #include <pwd.h>
52 #include <sysexits.h>
53 #include <signal.h>
54 #include <stdio.h>
55 #include <stdlib.h>
56 #include <stdarg.h>
57 #include <string.h>
58 #include <timeconv.h>
59 #include <unistd.h>
60 
61 #include <netinet/in.h>
62 #include <netinet/in_systm.h>
63 #include <netinet/ip.h>
64 #include <netinet/ip_icmp.h>
65 #include <netinet/tcp.h>
66 #include <net/if.h>
67 #include <net/if_dl.h>
68 #include <net/route.h>
69 #include <net/ethernet.h>
70 
71 #include <net/ipfw3/ip_fw3.h>
72 #include <net/ipfw3_basic/ip_fw3_table.h>
73 #include <net/ipfw3_basic/ip_fw3_sync.h>
74 #include <net/ipfw3_basic/ip_fw3_basic.h>
75 #include <net/ipfw3_nat/ip_fw3_nat.h>
76 #include <net/dummynet3/ip_dummynet3.h>
77 
78 #include "ipfw3.h"
79 #include "ipfw3log.h"
80 
81 extern int	fw3_socket;
82 extern int	do_quiet;
83 
84 
85 void
86 resetlog(int ac, char *av[])
87 {
88 	int rulenum;
89 	int failed = EX_OK;
90 
91 	NEXT_ARG;
92 
93 	if (!ac) {
94 		/* clear all entries */
95 		if (setsockopt(fw3_socket, IPPROTO_IP,
96 					IP_FW_RESETLOG, NULL, 0) < 0)
97 			err(EX_UNAVAILABLE, "setsockopt(IP_FW_RESETLOG)");
98 		if (!do_quiet)
99 			printf("Logging counts reset.\n");
100 
101 		return;
102 	}
103 
104 	while (ac) {
105 		/* Rule number */
106 		if (isdigit(**av)) {
107 			rulenum = atoi(*av);
108 			NEXT_ARG;
109 			if (setsockopt(fw3_socket, IPPROTO_IP,
110 				IP_FW_RESETLOG, &rulenum, sizeof rulenum)) {
111 				warn("rule %u: setsockopt(IP_FW_RESETLOG)",
112 						rulenum);
113 				failed = EX_UNAVAILABLE;
114 			} else if (!do_quiet)
115 				printf("Entry %d logging count reset\n",
116 						rulenum);
117 		} else {
118 			errx(EX_DATAERR, "invalid rule number ``%s''", *av);
119 		}
120 	}
121 	if (failed != EX_OK)
122 		exit(failed);
123 }
124 
125 void
126 log_main(int ac, char **av)
127 {
128 	if (!strncmp(*av, "reset", strlen(*av))) {
129 		resetlog(ac, av);
130 	} else if (!strncmp(*av, "off", strlen(*av))) {
131 
132 	} else if (!strncmp(*av, "on", strlen(*av))) {
133 
134 	} else {
135 		errx(EX_USAGE, "bad command `%s'", *av);
136 	}
137 }
138 
139