1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 Shteryana Shopova <syrinx@FreeBSD.org>
5 * All rights reserved.
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 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * Bridge MIB implementation for SNMPd.
29 * Bridge pfil controls.
30 *
31 * $FreeBSD$
32 */
33
34#include <sys/types.h>
35#include <sys/sysctl.h>
36#include <sys/socket.h>
37
38#include <net/ethernet.h>
39#include <net/if.h>
40#include <net/if_mib.h>
41#include <net/if_types.h>
42
43#include <errno.h>
44#include <string.h>
45#include <stdlib.h>
46#include <syslog.h>
47
48#include <bsnmp/snmpmod.h>
49#include <bsnmp/snmp_mibII.h>
50
51#define	SNMPTREE_TYPES
52#include "bridge_tree.h"
53#include "bridge_snmp.h"
54
55static int
56val2snmp_truth(uint8_t val)
57{
58	if (val == 0)
59		return (2);
60
61	return (1);
62}
63
64static int
65snmp_truth2val(int32_t truth)
66{
67	if (truth == 2)
68		return (0);
69	else if (truth == 1)
70		return (1);
71
72	return (-1);
73}
74
75int
76op_begemot_bridge_pf(struct snmp_context *ctx, struct snmp_value *val,
77	uint sub, uint iidx __unused, enum snmp_op op)
78{
79	int k_val;
80
81	if (val->var.subs[sub - 1] > LEAF_begemotBridgeLayer2PfStatus)
82		return (SNMP_ERR_NOSUCHNAME);
83
84	switch (op) {
85		case SNMP_OP_GETNEXT:
86			abort();
87		case SNMP_OP_ROLLBACK:
88			bridge_do_pfctl(val->var.subs[sub - 1] - 1,
89			    op, &(ctx->scratch->int1));
90				return (SNMP_ERR_NOERROR);
91
92		case SNMP_OP_COMMIT:
93			return (SNMP_ERR_NOERROR);
94
95		case SNMP_OP_SET:
96			ctx->scratch->int1 =
97			    bridge_get_pfval(val->var.subs[sub - 1]);
98
99			if ((k_val = snmp_truth2val(val->v.integer)) < 0)
100				return (SNMP_ERR_BADVALUE);
101			return (SNMP_ERR_NOERROR);
102
103		case SNMP_OP_GET:
104			switch (val->var.subs[sub - 1]) {
105			    case LEAF_begemotBridgePfilStatus:
106			    case LEAF_begemotBridgePfilMembers:
107			    case LEAF_begemotBridgePfilIpOnly:
108			    case LEAF_begemotBridgeLayer2PfStatus:
109				if (bridge_do_pfctl(val->var.subs[sub - 1] - 1,
110				    op, &k_val) < 0)
111					return (SNMP_ERR_GENERR);
112				val->v.integer = val2snmp_truth(k_val);
113				return (SNMP_ERR_NOERROR);
114			}
115			abort();
116	}
117
118	abort();
119}
120