summaryrefslogtreecommitdiffstats
path: root/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c')
-rw-r--r--usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c1287
1 files changed, 1287 insertions, 0 deletions
diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c
new file mode 100644
index 0000000..dc22c69
--- /dev/null
+++ b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c
@@ -0,0 +1,1287 @@
+/*-
+ * Copyright (c) 2006 The FreeBSD Project
+ * All rights reserved.
+ *
+ * Author: Shteryana Shopova <syrinx@FreeBSD.org>
+ *
+ * Redistribution of this software and documentation and use in source and
+ * binary forms, with or without modification, are permitted provided that
+ * the following conditions are met:
+ *
+ * 1. Redistributions of source code or documentation must retain the above
+ * copyright notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Textual conventions for OctetStrings
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/queue.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <unistd.h>
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <bsnmp/asn1.h>
+#include <bsnmp/snmp.h>
+#include "bsnmptc.h"
+#include "bsnmptools.h"
+
+/* OctetString, DisplayString */
+static char *snmp_oct2str(uint32_t, char *, char *);
+static char *snmp_str2asn_oid(char *, struct asn_oid *);
+static int parse_octetstring(struct snmp_value *, char *);
+
+/* DateAndTime */
+static char *snmp_octstr2date(uint32_t, char *, char *);
+static char *snmp_date2asn_oid(char * , struct asn_oid *);
+static int parse_dateandtime(struct snmp_value *, char *);
+
+/* PhysAddress */
+static char *snmp_oct2physAddr(uint32_t, char *, char *);
+static char *snmp_addr2asn_oid(char *, struct asn_oid *);
+static int parse_physaddress(struct snmp_value *, char *);
+
+/* NTPTimeStamp */
+static char *snmp_oct2ntp_ts(uint32_t, char *, char *);
+static char *snmp_ntp_ts2asn_oid(char *, struct asn_oid *);
+static int parse_ntp_ts(struct snmp_value *, char *);
+
+/* BridgeId */
+static char *snmp_oct2bridgeid(uint32_t, char *, char *);
+static char *snmp_bridgeid2oct(char *, struct asn_oid *);
+static int parse_bridge_id(struct snmp_value *, char *);
+
+/* BridgePortId */
+static char *snmp_oct2bport_id(uint32_t, char *, char *);
+static char *snmp_bport_id2oct(char *, struct asn_oid *);
+static int parse_bport_id(struct snmp_value *, char *);
+
+/* InetAddress */
+static char *snmp_oct2inetaddr(uint32_t len, char *octets, char *buf);
+static char *snmp_inetaddr2oct(char *str, struct asn_oid *oid);
+static int32_t parse_inetaddr(struct snmp_value *value, char *string);
+
+static char *snmp_oct2bits(uint32_t len, char *octets, char *buf);
+static char *snmp_bits2oct(char *str, struct asn_oid *oid);
+static int32_t parse_bits(struct snmp_value *value, char *string);
+
+struct snmp_text_conv {
+ enum snmp_tc tc;
+ const char *tc_str;
+ int32_t len;
+ snmp_oct2tc_f oct2tc;
+ snmp_tc2oid_f tc2oid;
+ snmp_tc2oct_f tc2oct;
+} text_convs[] = {
+ { SNMP_STRING, "OctetString", SNMP_VAR_STRSZ,
+ snmp_oct2str, snmp_str2asn_oid, parse_octetstring },
+
+ { SNMP_DISPLAYSTRING, "DisplayString" , SNMP_VAR_STRSZ,
+ snmp_oct2str, snmp_str2asn_oid, parse_octetstring },
+
+ { SNMP_DATEANDTIME, "DateAndTime", SNMP_DATETIME_STRSZ,
+ snmp_octstr2date, snmp_date2asn_oid, parse_dateandtime },
+
+ { SNMP_PHYSADDR, "PhysAddress", SNMP_PHYSADDR_STRSZ,
+ snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress },
+
+ { SNMP_ATMESI, "AtmESI", SNMP_PHYSADDR_STRSZ,
+ snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress },
+
+ { SNMP_NTP_TIMESTAMP, "NTPTimeStamp", SNMP_NTP_TS_STRSZ,
+ snmp_oct2ntp_ts, snmp_ntp_ts2asn_oid, parse_ntp_ts },
+
+ { SNMP_MACADDRESS, "MacAddress", SNMP_PHYSADDR_STRSZ,
+ snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress },
+
+ { SNMP_BRIDGE_ID, "BridgeId", SNMP_BRIDGEID_STRSZ,
+ snmp_oct2bridgeid, snmp_bridgeid2oct, parse_bridge_id },
+
+ { SNMP_BPORT_ID, "BridgePortId", SNMP_BPORT_STRSZ,
+ snmp_oct2bport_id, snmp_bport_id2oct, parse_bport_id },
+
+ { SNMP_INETADDRESS, "InetAddress", SNMP_INADDRS_STRSZ,
+ snmp_oct2inetaddr, snmp_inetaddr2oct, parse_inetaddr },
+
+ { SNMP_TC_OWN, "BITS", SNMP_VAR_STRSZ,
+ snmp_oct2bits, snmp_bits2oct, parse_bits },
+
+ { SNMP_UNKNOWN, "Unknown", SNMP_VAR_STRSZ, snmp_oct2str,
+ snmp_str2asn_oid, parse_octetstring } /* keep last */
+};
+
+/* Common API */
+enum snmp_tc
+snmp_get_tc(char *str)
+{
+ int i;
+ for (i = 0; i < SNMP_UNKNOWN; i++) {
+ if (!strncmp(text_convs[i].tc_str, str,
+ strlen(text_convs[i].tc_str)))
+ return (text_convs[i].tc);
+ }
+
+ return (SNMP_STRING);
+}
+
+char *
+snmp_oct2tc(enum snmp_tc tc, uint32_t len, char *octets)
+{
+ uint32_t tc_len;
+ char * buf;
+
+ if (tc < 0 || tc > SNMP_UNKNOWN)
+ tc = SNMP_UNKNOWN;
+
+ if (text_convs[tc].len > 0)
+ tc_len = text_convs[tc].len;
+ else
+ tc_len = 2 * len + 3;
+
+ if ((buf = malloc(tc_len)) == NULL ) {
+ syslog(LOG_ERR, "malloc failed - %s", strerror(errno));
+ return (NULL);
+ }
+
+ memset(buf, 0, tc_len);
+ if (text_convs[tc].oct2tc(len, octets, buf) == NULL) {
+ free(buf);
+ return (NULL);
+ }
+
+ return (buf);
+}
+
+char *
+snmp_tc2oid(enum snmp_tc tc, char *str, struct asn_oid *oid)
+{
+ if (tc < 0 || tc > SNMP_UNKNOWN)
+ tc = SNMP_UNKNOWN;
+
+ return (text_convs[tc].tc2oid(str, oid));
+}
+
+int32_t
+snmp_tc2oct(enum snmp_tc tc, struct snmp_value *value, char *string)
+{
+ if (tc < 0 || tc > SNMP_UNKNOWN)
+ tc = SNMP_UNKNOWN;
+
+ return (text_convs[tc].tc2oct(value, string));
+}
+
+/*****************************************************
+* Basic OctetString type.
+*/
+static char *
+snmp_oct2str(uint32_t len, char *octets, char *buf)
+{
+ uint8_t binary = 0;
+ uint32_t i;
+ char *ptr;
+
+ if (len > MAX_OCTSTRING_LEN || octets == NULL || buf == NULL)
+ return (NULL);
+
+ for (ptr = buf, i = 0; i < len; i++)
+ if (!isprint(octets[i])) {
+ binary = 1;
+ buf += sprintf(buf, "0x");
+ break;
+ }
+
+ for (ptr = buf, i = 0; i < len; i++)
+ if (!binary)
+ ptr += sprintf(ptr, "%c", octets[i]);
+ else
+ ptr += sprintf(ptr, "%2.2x", (u_char)octets[i]);
+
+ return (buf);
+}
+
+static char *
+snmp_str2asn_oid(char *str, struct asn_oid *oid)
+{
+ uint32_t i, len = 0;
+
+ /*
+ * OctetStrings are allowed max length of ASN_MAXOCTETSTRING,
+ * but trying to index an entry with such a long OctetString
+ * will fail anyway.
+ */
+ for (len = 0; len < ASN_MAXOIDLEN; len++) {
+ if (strchr(",]", *(str + len)) != NULL)
+ break;
+ }
+
+ if (len >= ASN_MAXOIDLEN)
+ return (NULL);
+
+ if (snmp_suboid_append(oid, (asn_subid_t) len) < 0)
+ return (NULL);
+
+ for (i = 0; i < len; i++)
+ if (snmp_suboid_append(oid, (asn_subid_t) *(str + i)) < 0)
+ return (NULL);
+
+ return (str + len);
+}
+
+static int32_t
+parse_octetstring(struct snmp_value *value, char *val)
+{
+ size_t len;
+
+ if ((len = strlen(val)) >= MAX_OCTSTRING_LEN) {
+ warnx("Octetstring too long - %d is max allowed",
+ MAX_OCTSTRING_LEN - 1);
+ return (-1);
+ }
+
+ value->v.octetstring.len = len;
+
+ if((value->v.octetstring.octets = malloc(len)) == NULL) {
+ syslog(LOG_ERR,"malloc failed: %s", strerror(errno));
+ return (-1);
+ }
+
+ memcpy(value->v.octetstring.octets, val, len);
+ value->syntax = SNMP_SYNTAX_OCTETSTRING;
+
+ return (0);
+}
+
+/*************************************************************
+ * DateAndTime
+ *************************************************************
+ * rfc 2579 specification:
+ * DateAndTime ::= TEXTUAL-CONVENTION
+ * DISPLAY-HINT "2d-1d-1d,1d:1d:1d.1d,1a1d:1d"
+ * STATUS current
+ * DESCRIPTION
+ * "A date-time specification.
+ *
+ * field octets contents range
+ * ----- ------ -------- -----
+ * 1 1-2 year* 0..65536
+ * 2 3 month 1..12
+ * 3 4 day 1..31
+ * 4 5 hour 0..23
+ * 5 6 minutes 0..59
+ * 6 7 seconds 0..60
+ * (use 60 for leap-second)
+ * 7 8 deci-seconds 0..9
+ * 8 9 direction from UTC '+' / '-'
+ * 9 10 hours from UTC* 0..13
+ * 10 11 minutes from UTC 0..59
+ *
+ * * Notes:
+ * - the value of year is in network-byte order
+ * - daylight saving time in New Zealand is +13
+ *
+ * For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be
+ * displayed as:
+ *
+ * 1992-5-26,13:30:15.0,-4:0
+ */
+static char *
+snmp_octstr2date(uint32_t len, char *octets, char *buf)
+{
+ int year;
+ char *ptr;
+
+ if (len != SNMP_DATETIME_OCTETS || octets == NULL || buf == NULL)
+ return (NULL);
+
+ buf[0]= '\0';
+ year = (octets[0] << 8);
+ year += (octets[1]);
+
+ ptr = buf;
+ ptr += sprintf(ptr, "%4.4d-%.2d-%.2d, ", year, octets[2],octets[3]);
+ ptr += sprintf(ptr, "%2.2d:%2.2d:%2.2d.%.2d, ", octets[4],octets[5],
+ octets[6],octets[7]);
+ ptr += sprintf(ptr, "%c%.2d:%.2d", octets[8],octets[9],octets[10]);
+
+ return (buf);
+}
+
+static char *
+snmp_date2asn_oid(char *str, struct asn_oid *oid)
+{
+ char *endptr, *ptr;
+ uint32_t v;
+ int32_t saved_errno;
+
+ if (snmp_suboid_append(oid, (asn_subid_t) SNMP_DATETIME_OCTETS) < 0)
+ return (NULL);
+
+ /* Read 'YYYY-' and write it in two subs. */
+ ptr = str;
+ saved_errno = errno;
+ errno = 0;
+ v = strtoul(ptr, &endptr, 10);
+ if (v > 0xffff)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != '-')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) ((v & 0xff00) >> 8)) < 0)
+ return (NULL);
+ if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xff)) < 0)
+ return (NULL);
+
+ /* 'MM-' */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != '-')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ /* 'DD,' */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != '-')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ /* 'HH:' */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != ':')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ /* 'MM:' */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != ':')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ /* 'SS.' */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != '.')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ /* 'M(mseconds),' */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != ',')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ /* 'UTC' - optional */
+ ptr = endptr + 1;
+ if (*ptr == 'U' && *(ptr + 1) == 'T' && *(ptr + 1) == 'C')
+ ptr += 3;
+
+ /* '+/-' */
+ if (*ptr == '-' || *ptr == '+') {
+ if (snmp_suboid_append(oid, (asn_subid_t) (*ptr)) < 0)
+ return (NULL);
+ } else
+ goto error1;
+
+ /* 'HH:' */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (*endptr != ':')
+ goto error1;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ /* 'MM' - last one - ignore endptr here. */
+ ptr = endptr + 1;
+ saved_errno = errno;
+ v = strtoul(ptr, &endptr, 10);
+ if (errno != 0)
+ goto error;
+ else
+ errno = saved_errno;
+ if (snmp_suboid_append(oid, (asn_subid_t) v) < 0)
+ return (NULL);
+
+ return (endptr);
+
+ error:
+ errno = saved_errno;
+ error1:
+ warnx("Date value %s not supported", str);
+ return (NULL);
+}
+
+/* Read a DateAndTime string eg. 1992-5-26,13:30:15.0,-4:0. */
+static int32_t
+parse_dateandtime(struct snmp_value *sv, char *val)
+{
+ char *endptr;
+ uint32_t v;
+ 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);
+}
OpenPOWER on IntegriCloud