a08b636a9d
Instead of copy-pasting the string literal for "UTC" 3 times and using strlen, use a static char[3] buffer and sizeof(..). MFC after: 3 days X-MFC with: r298507 Submitted by: kib Sponsored by: EMC / Isilon Storage Division
1289 lines
30 KiB
C
1289 lines
30 KiB
C
/*-
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* Copyright (c) 2006 The FreeBSD Project
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* All rights reserved.
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*
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* Author: Shteryana Shopova <syrinx@FreeBSD.org>
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*
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* Redistribution of this software and documentation and use in source and
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* binary forms, with or without modification, are permitted provided that
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* the following conditions are met:
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*
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* 1. Redistributions of source code or documentation must retain the above
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* copyright notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Textual conventions for OctetStrings
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <syslog.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <bsnmp/asn1.h>
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#include <bsnmp/snmp.h>
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#include "bsnmptc.h"
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#include "bsnmptools.h"
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/* OctetString, DisplayString */
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static char *snmp_oct2str(uint32_t, char *, char *);
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static char *snmp_str2asn_oid(char *, struct asn_oid *);
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static int parse_octetstring(struct snmp_value *, char *);
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/* DateAndTime */
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static char *snmp_octstr2date(uint32_t, char *, char *);
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static char *snmp_date2asn_oid(char * , struct asn_oid *);
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static int parse_dateandtime(struct snmp_value *, char *);
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/* PhysAddress */
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static char *snmp_oct2physAddr(uint32_t, char *, char *);
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static char *snmp_addr2asn_oid(char *, struct asn_oid *);
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static int parse_physaddress(struct snmp_value *, char *);
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/* NTPTimeStamp */
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static char *snmp_oct2ntp_ts(uint32_t, char *, char *);
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static char *snmp_ntp_ts2asn_oid(char *, struct asn_oid *);
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static int parse_ntp_ts(struct snmp_value *, char *);
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/* BridgeId */
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static char *snmp_oct2bridgeid(uint32_t, char *, char *);
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static char *snmp_bridgeid2oct(char *, struct asn_oid *);
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static int parse_bridge_id(struct snmp_value *, char *);
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/* BridgePortId */
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static char *snmp_oct2bport_id(uint32_t, char *, char *);
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static char *snmp_bport_id2oct(char *, struct asn_oid *);
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static int parse_bport_id(struct snmp_value *, char *);
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/* InetAddress */
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static char *snmp_oct2inetaddr(uint32_t len, char *octets, char *buf);
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static char *snmp_inetaddr2oct(char *str, struct asn_oid *oid);
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static int32_t parse_inetaddr(struct snmp_value *value, char *string);
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static char *snmp_oct2bits(uint32_t len, char *octets, char *buf);
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static char *snmp_bits2oct(char *str, struct asn_oid *oid);
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static int32_t parse_bits(struct snmp_value *value, char *string);
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struct snmp_text_conv {
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enum snmp_tc tc;
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const char *tc_str;
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int32_t len;
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snmp_oct2tc_f oct2tc;
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snmp_tc2oid_f tc2oid;
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snmp_tc2oct_f tc2oct;
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} text_convs[] = {
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{ SNMP_STRING, "OctetString", SNMP_VAR_STRSZ,
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snmp_oct2str, snmp_str2asn_oid, parse_octetstring },
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{ SNMP_DISPLAYSTRING, "DisplayString" , SNMP_VAR_STRSZ,
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snmp_oct2str, snmp_str2asn_oid, parse_octetstring },
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{ SNMP_DATEANDTIME, "DateAndTime", SNMP_DATETIME_STRSZ,
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snmp_octstr2date, snmp_date2asn_oid, parse_dateandtime },
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{ SNMP_PHYSADDR, "PhysAddress", SNMP_PHYSADDR_STRSZ,
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snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress },
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{ SNMP_ATMESI, "AtmESI", SNMP_PHYSADDR_STRSZ,
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snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress },
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{ SNMP_NTP_TIMESTAMP, "NTPTimeStamp", SNMP_NTP_TS_STRSZ,
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snmp_oct2ntp_ts, snmp_ntp_ts2asn_oid, parse_ntp_ts },
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{ SNMP_MACADDRESS, "MacAddress", SNMP_PHYSADDR_STRSZ,
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snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress },
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{ SNMP_BRIDGE_ID, "BridgeId", SNMP_BRIDGEID_STRSZ,
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snmp_oct2bridgeid, snmp_bridgeid2oct, parse_bridge_id },
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{ SNMP_BPORT_ID, "BridgePortId", SNMP_BPORT_STRSZ,
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snmp_oct2bport_id, snmp_bport_id2oct, parse_bport_id },
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{ SNMP_INETADDRESS, "InetAddress", SNMP_INADDRS_STRSZ,
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snmp_oct2inetaddr, snmp_inetaddr2oct, parse_inetaddr },
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{ SNMP_TC_OWN, "BITS", SNMP_VAR_STRSZ,
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snmp_oct2bits, snmp_bits2oct, parse_bits },
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{ SNMP_UNKNOWN, "Unknown", SNMP_VAR_STRSZ, snmp_oct2str,
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snmp_str2asn_oid, parse_octetstring } /* keep last */
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};
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/* Common API */
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enum snmp_tc
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snmp_get_tc(char *str)
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{
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int i;
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for (i = 0; i < SNMP_UNKNOWN; i++) {
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if (!strncmp(text_convs[i].tc_str, str,
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strlen(text_convs[i].tc_str)))
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return (text_convs[i].tc);
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}
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return (SNMP_STRING);
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}
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char *
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snmp_oct2tc(enum snmp_tc tc, uint32_t len, char *octets)
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{
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uint32_t tc_len;
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char * buf;
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if (tc < 0 || tc > SNMP_UNKNOWN)
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tc = SNMP_UNKNOWN;
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if (text_convs[tc].len > 0)
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tc_len = text_convs[tc].len;
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else
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tc_len = 2 * len + 3;
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if ((buf = malloc(tc_len)) == NULL ) {
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syslog(LOG_ERR, "malloc failed - %s", strerror(errno));
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return (NULL);
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}
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memset(buf, 0, tc_len);
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if (text_convs[tc].oct2tc(len, octets, buf) == NULL) {
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free(buf);
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return (NULL);
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}
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return (buf);
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}
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char *
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snmp_tc2oid(enum snmp_tc tc, char *str, struct asn_oid *oid)
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{
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if (tc < 0 || tc > SNMP_UNKNOWN)
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tc = SNMP_UNKNOWN;
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return (text_convs[tc].tc2oid(str, oid));
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}
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int32_t
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snmp_tc2oct(enum snmp_tc tc, struct snmp_value *value, char *string)
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{
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if (tc < 0 || tc > SNMP_UNKNOWN)
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tc = SNMP_UNKNOWN;
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return (text_convs[tc].tc2oct(value, string));
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}
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/*****************************************************
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* Basic OctetString type.
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*/
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static char *
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snmp_oct2str(uint32_t len, char *octets, char *buf)
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{
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uint8_t binary = 0;
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uint32_t i;
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char *ptr;
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if (len > MAX_OCTSTRING_LEN || octets == NULL || buf == NULL)
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return (NULL);
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for (ptr = buf, i = 0; i < len; i++)
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if (!isprint(octets[i])) {
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binary = 1;
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buf += sprintf(buf, "0x");
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break;
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}
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for (ptr = buf, i = 0; i < len; i++)
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if (!binary)
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ptr += sprintf(ptr, "%c", octets[i]);
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else
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ptr += sprintf(ptr, "%2.2x", (u_char)octets[i]);
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return (buf);
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}
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static char *
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snmp_str2asn_oid(char *str, struct asn_oid *oid)
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{
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uint32_t i, len = 0;
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/*
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* OctetStrings are allowed max length of ASN_MAXOCTETSTRING,
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* but trying to index an entry with such a long OctetString
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* will fail anyway.
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*/
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for (len = 0; len < ASN_MAXOIDLEN; len++) {
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if (strchr(",]", *(str + len)) != NULL)
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break;
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}
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if (len >= ASN_MAXOIDLEN)
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return (NULL);
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if (snmp_suboid_append(oid, (asn_subid_t) len) < 0)
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return (NULL);
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for (i = 0; i < len; i++)
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if (snmp_suboid_append(oid, (asn_subid_t) *(str + i)) < 0)
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return (NULL);
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return (str + len);
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}
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static int32_t
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parse_octetstring(struct snmp_value *value, char *val)
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{
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size_t len;
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if ((len = strlen(val)) >= MAX_OCTSTRING_LEN) {
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warnx("Octetstring too long - %d is max allowed",
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MAX_OCTSTRING_LEN - 1);
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return (-1);
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}
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value->v.octetstring.len = len;
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if((value->v.octetstring.octets = malloc(len)) == NULL) {
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syslog(LOG_ERR,"malloc failed: %s", strerror(errno));
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return (-1);
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}
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memcpy(value->v.octetstring.octets, val, len);
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value->syntax = SNMP_SYNTAX_OCTETSTRING;
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return (0);
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}
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/*************************************************************
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* DateAndTime
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*************************************************************
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* rfc 2579 specification:
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* DateAndTime ::= TEXTUAL-CONVENTION
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* DISPLAY-HINT "2d-1d-1d,1d:1d:1d.1d,1a1d:1d"
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* STATUS current
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* DESCRIPTION
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* "A date-time specification.
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*
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* field octets contents range
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* ----- ------ -------- -----
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* 1 1-2 year* 0..65536
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* 2 3 month 1..12
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* 3 4 day 1..31
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* 4 5 hour 0..23
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* 5 6 minutes 0..59
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* 6 7 seconds 0..60
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* (use 60 for leap-second)
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* 7 8 deci-seconds 0..9
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* 8 9 direction from UTC '+' / '-'
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* 9 10 hours from UTC* 0..13
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* 10 11 minutes from UTC 0..59
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*
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* * Notes:
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* - the value of year is in network-byte order
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* - daylight saving time in New Zealand is +13
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*
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* For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be
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* displayed as:
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*
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* 1992-5-26,13:30:15.0,-4:0
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*/
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static char *
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snmp_octstr2date(uint32_t len, char *octets, char *buf)
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{
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int year;
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char *ptr;
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if (len != SNMP_DATETIME_OCTETS || octets == NULL || buf == NULL)
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return (NULL);
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buf[0]= '\0';
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year = (octets[0] << 8);
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year += (octets[1]);
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ptr = buf;
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ptr += sprintf(ptr, "%4.4d-%.2d-%.2d, ", year, octets[2],octets[3]);
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ptr += sprintf(ptr, "%2.2d:%2.2d:%2.2d.%.2d, ", octets[4],octets[5],
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octets[6],octets[7]);
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ptr += sprintf(ptr, "%c%.2d:%.2d", octets[8],octets[9],octets[10]);
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return (buf);
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}
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static char *
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snmp_date2asn_oid(char *str, struct asn_oid *oid)
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{
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char *endptr, *ptr;
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static const char UTC[3] = "UTC";
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int32_t saved_errno;
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uint32_t v;
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if (snmp_suboid_append(oid, (asn_subid_t) SNMP_DATETIME_OCTETS) < 0)
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return (NULL);
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/* Read 'YYYY-' and write it in two subs. */
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ptr = str;
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saved_errno = errno;
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errno = 0;
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v = strtoul(ptr, &endptr, 10);
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if (v > 0xffff)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != '-')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) ((v & 0xff00) >> 8)) < 0)
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return (NULL);
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if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xff)) < 0)
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return (NULL);
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/* 'MM-' */
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ptr = endptr + 1;
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saved_errno = errno;
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != '-')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
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/* 'DD,' */
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ptr = endptr + 1;
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saved_errno = errno;
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != '-')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
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/* 'HH:' */
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ptr = endptr + 1;
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saved_errno = errno;
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != ':')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
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|
|
/* 'MM:' */
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ptr = endptr + 1;
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saved_errno = errno;
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != ':')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
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|
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/* 'SS.' */
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ptr = endptr + 1;
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saved_errno = errno;
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != '.')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
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|
|
|
/* 'M(mseconds),' */
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ptr = endptr + 1;
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saved_errno = errno;
|
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != ',')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
|
|
|
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/* 'UTC' - optional */
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ptr = endptr + 1;
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if (strncmp(ptr, UTC, sizeof(UTC)) == 0)
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ptr += sizeof(UTC);
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|
|
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/* '+/-' */
|
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if (*ptr == '-' || *ptr == '+') {
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if (snmp_suboid_append(oid, (asn_subid_t) (*ptr)) < 0)
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return (NULL);
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} else
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goto error1;
|
|
|
|
/* 'HH:' */
|
|
ptr = endptr + 1;
|
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saved_errno = errno;
|
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (*endptr != ':')
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goto error1;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
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|
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/* 'MM' - last one - ignore endptr here. */
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ptr = endptr + 1;
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saved_errno = errno;
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v = strtoul(ptr, &endptr, 10);
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if (errno != 0)
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goto error;
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else
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errno = saved_errno;
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if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
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return (NULL);
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|
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return (endptr);
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|
|
error:
|
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errno = saved_errno;
|
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error1:
|
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warnx("Date value %s not supported", str);
|
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return (NULL);
|
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}
|
|
|
|
/* Read a DateAndTime string eg. 1992-5-26,13:30:15.0,-4:0. */
|
|
static int32_t
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parse_dateandtime(struct snmp_value *sv, char *val)
|
|
{
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char *endptr;
|
|
uint32_t v;
|
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uint8_t date[SNMP_DATETIME_OCTETS];
|
|
|
|
/* 'YYYY-' */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v > 0xffff || *endptr != '-')
|
|
goto error;
|
|
date[0] = ((v & 0xff00) >> 8);
|
|
date[1] = (v & 0xff);
|
|
val = endptr + 1;
|
|
|
|
/* 'MM-' */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v == 0 || v > 12 || *endptr != '-')
|
|
goto error;
|
|
date[2] = v;
|
|
val = endptr + 1;
|
|
|
|
/* 'DD,' */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v == 0 || v > 31 || *endptr != ',')
|
|
goto error;
|
|
date[3] = v;
|
|
val = endptr + 1;
|
|
|
|
/* 'HH:' */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v > 23 || *endptr != ':')
|
|
goto error;
|
|
date[4] = v;
|
|
val = endptr + 1;
|
|
|
|
/* 'MM:' */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v > 59 || *endptr != ':')
|
|
goto error;
|
|
date[5] = v;
|
|
val = endptr + 1;
|
|
|
|
/* 'SS.' */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v > 60 || *endptr != '.')
|
|
goto error;
|
|
date[6] = v;
|
|
val = endptr + 1;
|
|
|
|
/* '(deci-)s,' */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v > 9 || *endptr != ',')
|
|
goto error;
|
|
date[7] = v;
|
|
val = endptr + 1;
|
|
|
|
/* offset - '+/-' */
|
|
if (*val != '-' && *val != '+')
|
|
goto error;
|
|
date[8] = (uint8_t) *val;
|
|
val = endptr + 1;
|
|
|
|
/* 'HH:' - offset from UTC */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v > 13 || *endptr != ':')
|
|
goto error;
|
|
date[9] = v;
|
|
val = endptr + 1;
|
|
|
|
/* 'MM'\0'' offset from UTC */
|
|
v = strtoul(val, &endptr, 10);
|
|
if (v > 59 || *endptr != '\0')
|
|
goto error;
|
|
date[10] = v;
|
|
|
|
if ((sv->v.octetstring.octets = malloc(SNMP_DATETIME_OCTETS)) == NULL) {
|
|
warnx("malloc() failed - %s", strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
sv->v.octetstring.len = SNMP_DATETIME_OCTETS;
|
|
memcpy(sv->v.octetstring.octets, date, SNMP_DATETIME_OCTETS);
|
|
sv->syntax = SNMP_SYNTAX_OCTETSTRING;
|
|
return (1);
|
|
|
|
error:
|
|
warnx("Date value %s not supported", val);
|
|
return (-1);
|
|
}
|
|
|
|
/**************************************************************
|
|
* PhysAddress
|
|
*/
|
|
static char *
|
|
snmp_oct2physAddr(uint32_t len, char *octets, char *buf)
|
|
{
|
|
char *ptr;
|
|
uint32_t i;
|
|
|
|
if (len != SNMP_PHYSADDR_OCTETS || octets == NULL || buf == NULL)
|
|
return (NULL);
|
|
|
|
buf[0]= '\0';
|
|
|
|
ptr = buf;
|
|
ptr += sprintf(ptr, "%2.2x", octets[0]);
|
|
for (i = 1; i < 6; i++)
|
|
ptr += sprintf(ptr, ":%2.2x", octets[i]);
|
|
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
snmp_addr2asn_oid(char *str, struct asn_oid *oid)
|
|
{
|
|
char *endptr, *ptr;
|
|
uint32_t v, i;
|
|
int saved_errno;
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) SNMP_PHYSADDR_OCTETS) < 0)
|
|
return (NULL);
|
|
|
|
ptr = str;
|
|
for (i = 0; i < 5; i++) {
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 16);
|
|
errno = saved_errno;
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", str);
|
|
return (NULL);
|
|
}
|
|
if (*endptr != ':') {
|
|
warnx("Failed adding oid - %s",str);
|
|
return (NULL);
|
|
}
|
|
if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
|
|
return (NULL);
|
|
ptr = endptr + 1;
|
|
}
|
|
|
|
/* The last one - don't check the ending char here. */
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 16);
|
|
errno = saved_errno;
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", str);
|
|
return (NULL);
|
|
}
|
|
if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
|
|
return (NULL);
|
|
|
|
return (endptr);
|
|
}
|
|
|
|
static int32_t
|
|
parse_physaddress(struct snmp_value *sv, char *val)
|
|
{
|
|
char *endptr;
|
|
int32_t i;
|
|
uint32_t v;
|
|
uint8_t phys_addr[SNMP_PHYSADDR_OCTETS];
|
|
|
|
for (i = 0; i < 5; i++) {
|
|
v = strtoul(val, &endptr, 16);
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", val);
|
|
return (-1);
|
|
}
|
|
if(*endptr != ':') {
|
|
warnx("Failed reading octet - %s", val);
|
|
return (-1);
|
|
}
|
|
phys_addr[i] = v;
|
|
val = endptr + 1;
|
|
}
|
|
|
|
/* The last one - don't check the ending char here. */
|
|
v = strtoul(val, &endptr, 16);
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", val);
|
|
return (-1);
|
|
}
|
|
phys_addr[5] = v;
|
|
|
|
if ((sv->v.octetstring.octets = malloc(SNMP_PHYSADDR_OCTETS)) == NULL) {
|
|
syslog(LOG_ERR,"malloc failed: %s", strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
sv->v.octetstring.len = SNMP_PHYSADDR_OCTETS;
|
|
memcpy(sv->v.octetstring.octets, phys_addr, SNMP_PHYSADDR_OCTETS);
|
|
sv->syntax = SNMP_SYNTAX_OCTETSTRING;
|
|
return (1);
|
|
}
|
|
|
|
/**************************************************************
|
|
* NTPTimeStamp
|
|
**************************************************************
|
|
* NTP MIB, Revision 0.2, 7/25/97:
|
|
* NTPTimeStamp ::= TEXTUAL-CONVENTION
|
|
* DISPLAY-HINT "4x.4x"
|
|
* STATUS current
|
|
* DESCRIPTION
|
|
* ""
|
|
* SYNTAX OCTET STRING (SIZE(8))
|
|
*/
|
|
static char *
|
|
snmp_oct2ntp_ts(uint32_t len, char *octets, char *buf)
|
|
{
|
|
char *ptr;
|
|
uint32_t i;
|
|
|
|
if (len != SNMP_NTP_TS_OCTETS || octets == NULL || buf == NULL)
|
|
return (NULL);
|
|
|
|
buf[0]= '\0';
|
|
|
|
ptr = buf;
|
|
i = octets[0] * 1000 + octets[1] * 100 + octets[2] * 10 + octets[3];
|
|
ptr += sprintf(ptr, "%4.4d", i);
|
|
i = octets[4] * 1000 + octets[5] * 100 + octets[6] * 10 + octets[7];
|
|
ptr += sprintf(ptr, ".%4.4d", i);
|
|
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
snmp_ntp_ts2asn_oid(char *str, struct asn_oid *oid)
|
|
{
|
|
char *endptr, *ptr;
|
|
uint32_t v, i, d;
|
|
struct asn_oid suboid;
|
|
int saved_errno;
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) SNMP_NTP_TS_OCTETS) < 0)
|
|
return (NULL);
|
|
|
|
ptr = str;
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 10);
|
|
if (errno != 0 || (v / 1000) > 9) {
|
|
warnx("Integer value %s not supported", str);
|
|
errno = saved_errno;
|
|
return (NULL);
|
|
} else
|
|
errno = saved_errno;
|
|
|
|
if (*endptr != '.') {
|
|
warnx("Failed adding oid - %s",str);
|
|
return (NULL);
|
|
}
|
|
|
|
memset(&suboid, 0, sizeof(struct asn_oid));
|
|
suboid.len = SNMP_NTP_TS_OCTETS;
|
|
|
|
for (i = 0, d = 1000; i < 4; i++) {
|
|
suboid.subs[i] = v / d;
|
|
v = v % d;
|
|
d = d / 10;
|
|
}
|
|
|
|
ptr = endptr + 1;
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 10);
|
|
if (errno != 0 || (v / 1000) > 9) {
|
|
warnx("Integer value %s not supported", str);
|
|
errno = saved_errno;
|
|
return (NULL);
|
|
} else
|
|
errno = saved_errno;
|
|
|
|
for (i = 0, d = 1000; i < 4; i++) {
|
|
suboid.subs[i + 4] = v / d;
|
|
v = v % d;
|
|
d = d / 10;
|
|
}
|
|
|
|
asn_append_oid(oid, &suboid);
|
|
return (endptr);
|
|
}
|
|
|
|
static int32_t
|
|
parse_ntp_ts(struct snmp_value *sv, char *val)
|
|
{
|
|
char *endptr;
|
|
int32_t i, d, saved_errno;
|
|
uint32_t v;
|
|
uint8_t ntp_ts[SNMP_NTP_TS_OCTETS];
|
|
|
|
saved_errno = errno;
|
|
v = strtoul(val, &endptr, 10);
|
|
if (errno != 0 || (v / 1000) > 9) {
|
|
saved_errno = errno;
|
|
warnx("Integer value %s not supported", val);
|
|
return (-1);
|
|
} else
|
|
saved_errno = errno;
|
|
|
|
if (*endptr != '.') {
|
|
warnx("Failed reading octet - %s", val);
|
|
return (-1);
|
|
}
|
|
|
|
for (i = 0, d = 1000; i < 4; i++) {
|
|
ntp_ts[i] = v / d;
|
|
v = v % d;
|
|
d = d / 10;
|
|
}
|
|
val = endptr + 1;
|
|
|
|
saved_errno = errno;
|
|
v = strtoul(val, &endptr, 10);
|
|
if (errno != 0 || (v / 1000) > 9) {
|
|
saved_errno = errno;
|
|
warnx("Integer value %s not supported", val);
|
|
return (-1);
|
|
} else
|
|
saved_errno = errno;
|
|
|
|
for (i = 0, d = 1000; i < 4; i++) {
|
|
ntp_ts[i + 4] = v / d;
|
|
v = v % d;
|
|
d = d / 10;
|
|
}
|
|
|
|
if ((sv->v.octetstring.octets = malloc(SNMP_NTP_TS_OCTETS)) == NULL) {
|
|
syslog(LOG_ERR,"malloc failed: %s", strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
sv->v.octetstring.len = SNMP_NTP_TS_OCTETS;
|
|
memcpy(sv->v.octetstring.octets, ntp_ts, SNMP_NTP_TS_OCTETS);
|
|
sv->syntax = SNMP_SYNTAX_OCTETSTRING;
|
|
return (1);
|
|
}
|
|
|
|
/**************************************************************
|
|
* BridgeId
|
|
**************************************************************
|
|
* BRIDGE-MIB, REVISION "200509190000Z"
|
|
* BridgeId ::= TEXTUAL-CONVENTION
|
|
* STATUS current
|
|
* DESCRIPTION
|
|
* "The Bridge-Identifier, as used in the Spanning Tree
|
|
* Protocol, to uniquely identify a bridge. Its first two
|
|
* octets (in network byte order) contain a priority value,
|
|
* and its last 6 octets contain the MAC address used to
|
|
* refer to a bridge in a unique fashion (typically, the
|
|
* numerically smallest MAC address of all ports on the
|
|
* bridge)."
|
|
* SYNTAX OCTET STRING (SIZE (8))
|
|
*/
|
|
static char *
|
|
snmp_oct2bridgeid(uint32_t len, char *octets, char *buf)
|
|
{
|
|
char *ptr;
|
|
uint32_t i, priority;
|
|
|
|
if (len != SNMP_BRIDGEID_OCTETS || octets == NULL || buf == NULL)
|
|
return (NULL);
|
|
|
|
buf[0]= '\0';
|
|
ptr = buf;
|
|
|
|
priority = octets[0] << 8;
|
|
priority += octets[1];
|
|
if (priority > SNMP_MAX_BRIDGE_PRIORITY) {
|
|
warnx("Invalid bridge priority %d", priority);
|
|
return (NULL);
|
|
} else
|
|
ptr += sprintf(ptr, "%d.", octets[0]);
|
|
|
|
ptr += sprintf(ptr, "%2.2x", octets[2]);
|
|
|
|
for (i = 1; i < 6; i++)
|
|
ptr += sprintf(ptr, ":%2.2x", octets[i + 2]);
|
|
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
snmp_bridgeid2oct(char *str, struct asn_oid *oid)
|
|
{
|
|
char *endptr, *ptr;
|
|
uint32_t v, i;
|
|
int32_t saved_errno;
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) SNMP_BRIDGEID_OCTETS) < 0)
|
|
return (NULL);
|
|
|
|
ptr = str;
|
|
/* Read the priority. */
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 10);
|
|
errno = 0;
|
|
|
|
if (v > SNMP_MAX_BRIDGE_PRIORITY || errno != 0 || *endptr != '.') {
|
|
errno = saved_errno;
|
|
warnx("Bad bridge priority value %d", v);
|
|
return (NULL);
|
|
}
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xff00)) < 0)
|
|
return (NULL);
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xff)) < 0)
|
|
return (NULL);
|
|
|
|
ptr = endptr + 1;
|
|
for (i = 0; i < 5; i++) {
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 16);
|
|
errno = saved_errno;
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", str);
|
|
return (NULL);
|
|
}
|
|
if (*endptr != ':') {
|
|
warnx("Failed adding oid - %s",str);
|
|
return (NULL);
|
|
}
|
|
if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
|
|
return (NULL);
|
|
ptr = endptr + 1;
|
|
}
|
|
|
|
/* The last one - don't check the ending char here. */
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 16);
|
|
errno = saved_errno;
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", str);
|
|
return (NULL);
|
|
}
|
|
if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
|
|
return (NULL);
|
|
|
|
return (endptr);
|
|
}
|
|
|
|
static int32_t
|
|
parse_bridge_id(struct snmp_value *sv, char *string)
|
|
{
|
|
char *ptr, *endptr;
|
|
int32_t i, saved_errno;
|
|
uint32_t v;
|
|
uint8_t bridge_id[SNMP_BRIDGEID_OCTETS];
|
|
|
|
ptr = string;
|
|
/* Read the priority. */
|
|
saved_errno = errno;
|
|
errno = 0;
|
|
v = strtoul(string, &endptr, 10);
|
|
errno = saved_errno;
|
|
|
|
if (v > SNMP_MAX_BRIDGE_PRIORITY || errno != 0 || *endptr != '.') {
|
|
errno = saved_errno;
|
|
warnx("Bad bridge priority value %d", v);
|
|
return (-1);
|
|
}
|
|
|
|
bridge_id[0] = (v & 0xff00);
|
|
bridge_id[1] = (v & 0xff);
|
|
|
|
string = endptr + 1;
|
|
|
|
for (i = 0; i < 5; i++) {
|
|
v = strtoul(string, &endptr, 16);
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", string);
|
|
return (-1);
|
|
}
|
|
if(*endptr != ':') {
|
|
warnx("Failed reading octet - %s", string);
|
|
return (-1);
|
|
}
|
|
bridge_id[i + 2] = v;
|
|
string = endptr + 1;
|
|
}
|
|
|
|
/* The last one - don't check the ending char here. */
|
|
v = strtoul(string, &endptr, 16);
|
|
if (v > 0xff) {
|
|
warnx("Integer value %s not supported", string);
|
|
return (-1);
|
|
}
|
|
bridge_id[7] = v;
|
|
|
|
if ((sv->v.octetstring.octets = malloc(SNMP_BRIDGEID_OCTETS)) == NULL) {
|
|
syslog(LOG_ERR,"malloc failed: %s", strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
sv->v.octetstring.len = SNMP_BRIDGEID_OCTETS;
|
|
memcpy(sv->v.octetstring.octets, bridge_id, SNMP_BRIDGEID_OCTETS);
|
|
sv->syntax = SNMP_SYNTAX_OCTETSTRING;
|
|
return (1);
|
|
}
|
|
|
|
/**************************************************************
|
|
* BridgePortId
|
|
**************************************************************
|
|
* BEGEMOT-BRIDGE-MIB, LAST-UPDATED "200608100000Z"
|
|
* BridgePortId ::= TEXTUAL-CONVENTION
|
|
* DISPLAY-HINT "1x.1x"
|
|
* STATUS current
|
|
* DESCRIPTION
|
|
* "A port identifier that contains a bridge port's STP priority
|
|
* in the first octet and the port number in the second octet."
|
|
* SYNTAX OCTET STRING (SIZE(2))
|
|
*/
|
|
static char *
|
|
snmp_oct2bport_id(uint32_t len, char *octets, char *buf)
|
|
{
|
|
char *ptr;
|
|
|
|
if (len != SNMP_BPORT_OCTETS || octets == NULL || buf == NULL)
|
|
return (NULL);
|
|
|
|
buf[0]= '\0';
|
|
ptr = buf;
|
|
|
|
ptr += sprintf(ptr, "%d.", octets[0]);
|
|
ptr += sprintf(ptr, "%d", octets[1]);
|
|
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
snmp_bport_id2oct(char *str, struct asn_oid *oid)
|
|
{
|
|
char *endptr, *ptr;
|
|
uint32_t v;
|
|
int saved_errno;
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) SNMP_BPORT_OCTETS) < 0)
|
|
return (NULL);
|
|
|
|
ptr = str;
|
|
/* Read the priority. */
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 10);
|
|
errno = 0;
|
|
|
|
if (v > SNMP_MAX_BPORT_PRIORITY || errno != 0 || *endptr != '.') {
|
|
errno = saved_errno;
|
|
warnx("Bad bridge port priority value %d", v);
|
|
return (NULL);
|
|
}
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
|
|
return (NULL);
|
|
|
|
saved_errno = errno;
|
|
v = strtoul(ptr, &endptr, 16);
|
|
errno = saved_errno;
|
|
|
|
if (v > 0xff) {
|
|
warnx("Bad port number - %d", v);
|
|
return (NULL);
|
|
}
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
|
|
return (NULL);
|
|
|
|
return (endptr);
|
|
}
|
|
|
|
static int32_t
|
|
parse_bport_id(struct snmp_value *value, char *string)
|
|
{
|
|
char *ptr, *endptr;
|
|
int saved_errno;
|
|
uint32_t v;
|
|
uint8_t bport_id[SNMP_BPORT_OCTETS];
|
|
|
|
ptr = string;
|
|
/* Read the priority. */
|
|
saved_errno = errno;
|
|
errno = 0;
|
|
v = strtoul(string, &endptr, 10);
|
|
errno = saved_errno;
|
|
|
|
if (v > SNMP_MAX_BPORT_PRIORITY || errno != 0 || *endptr != '.') {
|
|
errno = saved_errno;
|
|
warnx("Bad bridge port priority value %d", v);
|
|
return (-1);
|
|
}
|
|
|
|
bport_id[0] = v;
|
|
|
|
string = endptr + 1;
|
|
v = strtoul(string, &endptr, 16);
|
|
if (v > 0xff) {
|
|
warnx("Bad port number - %d", v);
|
|
return (-1);
|
|
}
|
|
|
|
bport_id[1] = v;
|
|
|
|
if ((value->v.octetstring.octets = malloc(SNMP_BPORT_OCTETS)) == NULL) {
|
|
syslog(LOG_ERR,"malloc failed: %s", strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
value->v.octetstring.len = SNMP_BPORT_OCTETS;
|
|
memcpy(value->v.octetstring.octets, bport_id, SNMP_BPORT_OCTETS);
|
|
value->syntax = SNMP_SYNTAX_OCTETSTRING;
|
|
return (1);
|
|
}
|
|
/**************************************************************
|
|
* InetAddress
|
|
**************************************************************
|
|
* INET-ADDRESS-MIB, REVISION "200502040000Z"
|
|
* InetAddress ::= TEXTUAL-CONVENTION
|
|
* STATUS current
|
|
* DESCRIPTION
|
|
* "Denotes a generic Internet address.
|
|
*
|
|
* An InetAddress value is always interpreted within the context
|
|
* of an InetAddressType value. Every usage of the InetAddress
|
|
* textual convention is required to specify the InetAddressType
|
|
* object that provides the context. It is suggested that the
|
|
* InetAddressType object be logically registered before the
|
|
* object(s) that use the InetAddress textual convention, if
|
|
* they appear in the same logical row.
|
|
*
|
|
* The value of an InetAddress object must always be
|
|
* consistent with the value of the associated InetAddressType
|
|
* object. Attempts to set an InetAddress object to a value
|
|
* inconsistent with the associated InetAddressType
|
|
* must fail with an inconsistentValue error.
|
|
*
|
|
* When this textual convention is used as the syntax of an
|
|
* index object, there may be issues with the limit of 128
|
|
* sub-identifiers specified in SMIv2, STD 58. In this case,
|
|
* the object definition MUST include a 'SIZE' clause to
|
|
* limit the number of potential instance sub-identifiers;
|
|
* otherwise the applicable constraints MUST be stated in
|
|
* the appropriate conceptual row DESCRIPTION clauses, or
|
|
* in the surrounding documentation if there is no single
|
|
* DESCRIPTION clause that is appropriate."
|
|
* SYNTAX OCTET STRING (SIZE (0..255))
|
|
**************************************************************
|
|
* TODO: FIXME!!! syrinx: Since we do not support checking the
|
|
* consistency of a varbinding based on the value of a previous
|
|
* one, try to guess the type of address based on the
|
|
* OctetString SIZE - 4 for IPv4, 16 for IPv6, others currently
|
|
* not supported.
|
|
*/
|
|
static char *
|
|
snmp_oct2inetaddr(uint32_t len, char *octets, char *buf)
|
|
{
|
|
int af;
|
|
void *ip;
|
|
struct in_addr ipv4;
|
|
struct in6_addr ipv6;
|
|
|
|
if (len > MAX_OCTSTRING_LEN || octets == NULL || buf == NULL)
|
|
return (NULL);
|
|
|
|
switch (len) {
|
|
/* XXX: FIXME - IPv4*/
|
|
case 4:
|
|
memcpy(&ipv4.s_addr, octets, sizeof(ipv4.s_addr));
|
|
af = AF_INET;
|
|
ip = &ipv4;
|
|
break;
|
|
|
|
/* XXX: FIXME - IPv4*/
|
|
case 16:
|
|
memcpy(ipv6.s6_addr, octets, sizeof(ipv6.s6_addr));
|
|
af = AF_INET6;
|
|
ip = &ipv6;
|
|
break;
|
|
|
|
default:
|
|
return (NULL);
|
|
}
|
|
|
|
if (inet_ntop(af, ip, buf, SNMP_INADDRS_STRSZ) == NULL) {
|
|
warnx("inet_ntop failed - %s", strerror(errno));
|
|
return (NULL);
|
|
}
|
|
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
snmp_inetaddr2oct(char *str, struct asn_oid *oid)
|
|
{
|
|
return (NULL);
|
|
}
|
|
|
|
static int32_t
|
|
parse_inetaddr(struct snmp_value *value, char *string)
|
|
{
|
|
return (-1);
|
|
}
|
|
|
|
/**************************************************************
|
|
* SNMP BITS type - XXX: FIXME
|
|
**************************************************************/
|
|
static char *
|
|
snmp_oct2bits(uint32_t len, char *octets, char *buf)
|
|
{
|
|
int i, bits;
|
|
uint64_t value;
|
|
|
|
if (len > sizeof(value) || octets == NULL || buf == NULL)
|
|
return (NULL);
|
|
|
|
for (i = len, value = 0, bits = 0; i > 0; i--, bits += 8)
|
|
value += octets[i] << bits;
|
|
|
|
buf[0]= '\0';
|
|
sprintf(buf, "0x%llx.",(long long unsigned) value);
|
|
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
snmp_bits2oct(char *str, struct asn_oid *oid)
|
|
{
|
|
char *endptr;
|
|
int i, size, bits, saved_errno;
|
|
uint64_t v, mask = 0xFF00000000000000;
|
|
|
|
saved_errno = errno;
|
|
errno = 0;
|
|
|
|
v = strtoull(str, &endptr, 16);
|
|
if (errno != 0) {
|
|
warnx("Bad BITS value %s - %s", str, strerror(errno));
|
|
errno = saved_errno;
|
|
return (NULL);
|
|
}
|
|
|
|
bits = 8;
|
|
/* Determine length - up to 8 octets supported so far. */
|
|
for (size = sizeof(v); size > 0; size--) {
|
|
if ((v & mask) != 0)
|
|
break;
|
|
mask = mask >> bits;
|
|
}
|
|
|
|
if (size == 0)
|
|
size = 1;
|
|
|
|
if (snmp_suboid_append(oid, (asn_subid_t) size) < 0)
|
|
return (NULL);
|
|
|
|
for (i = 0, bits = 0; i < size; i++, bits += 8)
|
|
if (snmp_suboid_append(oid,
|
|
(asn_subid_t)((v & mask) >> bits)) < 0)
|
|
return (NULL);
|
|
|
|
return (endptr);
|
|
}
|
|
|
|
static int32_t
|
|
parse_bits(struct snmp_value *value, char *string)
|
|
{
|
|
char *endptr;
|
|
int i, size, bits, saved_errno;
|
|
uint64_t v, mask = 0xFF00000000000000;
|
|
|
|
saved_errno = errno;
|
|
errno = 0;
|
|
|
|
v = strtoull(string, &endptr, 16);
|
|
|
|
if (errno != 0) {
|
|
warnx("Bad BITS value %s - %s", string, strerror(errno));
|
|
errno = saved_errno;
|
|
return (-1);
|
|
}
|
|
|
|
bits = 8;
|
|
/* Determine length - up to 8 octets supported so far. */
|
|
for (size = sizeof(v); size > 0; size--) {
|
|
if ((v & mask) != 0)
|
|
break;
|
|
mask = mask >> bits;
|
|
}
|
|
|
|
if (size == 0)
|
|
size = 1;
|
|
|
|
if ((value->v.octetstring.octets = malloc(size)) == NULL) {
|
|
syslog(LOG_ERR, "malloc failed: %s", strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
value->v.octetstring.len = size;
|
|
for (i = 0, bits = 0; i < size; i++, bits += 8)
|
|
value->v.octetstring.octets[i] = (v & mask) >> bits;
|
|
value->syntax = SNMP_SYNTAX_OCTETSTRING;
|
|
return (1);
|
|
}
|