1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 55 static int 56 val2snmp_truth(uint8_t val) 57 { 58 if (val == 0) 59 return (2); 60 61 return (1); 62 } 63 64 static int 65 snmp_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 75 int 76 op_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