bridge_pf.c revision 164410
1/*- 2 * Copyright (c) 2006 Shteryana Shopova <syrinx@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * Bridge MIB implementation for SNMPd. 27 * Bridge pfil controls. 28 * 29 * $FreeBSD: head/usr.sbin/bsnmpd/modules/snmp_bridge/bridge_pf.c 164410 2006-11-19 15:42:48Z syrinx $ 30 */ 31 32#include <sys/types.h> 33#include <sys/sysctl.h> 34#include <sys/socket.h> 35 36#include <net/ethernet.h> 37#include <net/if.h> 38#include <net/if_mib.h> 39#include <net/if_types.h> 40 41#include <errno.h> 42#include <string.h> 43#include <stdlib.h> 44#include <syslog.h> 45 46#include <bsnmp/snmpmod.h> 47#include <bsnmp/snmp_mibII.h> 48 49#include "bridge_tree.h" 50#include "bridge_snmp.h" 51 52static int 53val2snmp_truth(uint8_t val) 54{ 55 if (val == 0) 56 return (2); 57 58 return (1); 59} 60 61static int 62snmp_truth2val(int32_t truth) 63{ 64 if (truth == 2) 65 return (0); 66 else if (truth == 1) 67 return (1); 68 69 return (-1); 70} 71 72int 73op_begemot_bridge_pf(struct snmp_context *ctx, struct snmp_value *val, 74 uint sub, uint iidx __unused, enum snmp_op op) 75{ 76 int k_val; 77 78 if (val->var.subs[sub - 1] > LEAF_begemotBridgeLayer2PfStatus) 79 return (SNMP_ERR_NOSUCHNAME); 80 81 switch (op) { 82 case SNMP_OP_GETNEXT: 83 abort(); 84 case SNMP_OP_ROLLBACK: 85 bridge_do_pfctl(val->var.subs[sub - 1] - 1, 86 op, &(ctx->scratch->int1)); 87 return (SNMP_ERR_NOERROR); 88 89 case SNMP_OP_COMMIT: 90 return (SNMP_ERR_NOERROR); 91 92 case SNMP_OP_SET: 93 ctx->scratch->int1 = 94 bridge_get_pfval(val->var.subs[sub - 1]); 95 96 if ((k_val = snmp_truth2val(val->v.integer)) < 0) 97 return (SNMP_ERR_BADVALUE); 98 99 case SNMP_OP_GET: 100 break; 101 } 102 103 switch (val->var.subs[sub - 1]) { 104 case LEAF_begemotBridgePfilStatus: 105 case LEAF_begemotBridgePfilMembers: 106 case LEAF_begemotBridgePfilIpOnly: 107 case LEAF_begemotBridgeLayer2PfStatus: 108 if (bridge_do_pfctl(val->var.subs[sub - 1] - 1, 109 op, &k_val) < 0) 110 return (SNMP_ERR_GENERR); 111 val->v.integer = val2snmp_truth(k_val); 112 break; 113 abort(); 114 } 115 116 return (SNMP_ERR_NOERROR); 117} 118