diff options
Diffstat (limited to 'src/bsnmp')
| -rw-r--r-- | src/bsnmp/Makefile.am | 4 | ||||
| -rw-r--r-- | src/bsnmp/asn1.c | 1000 | ||||
| -rw-r--r-- | src/bsnmp/asn1.h | 183 | ||||
| -rw-r--r-- | src/bsnmp/snmp.c | 1081 | ||||
| -rw-r--r-- | src/bsnmp/snmp.h | 174 | ||||
| -rw-r--r-- | src/bsnmp/snmppriv.h | 45 |
6 files changed, 0 insertions, 2487 deletions
diff --git a/src/bsnmp/Makefile.am b/src/bsnmp/Makefile.am deleted file mode 100644 index 7a7a739..0000000 --- a/src/bsnmp/Makefile.am +++ /dev/null @@ -1,4 +0,0 @@ - -noinst_LIBRARIES = libbsnmp-custom.a -libbsnmp_custom_a_SOURCES = asn1.c asn1.h snmp.c snmp.h snmppriv.h - diff --git a/src/bsnmp/asn1.c b/src/bsnmp/asn1.c deleted file mode 100644 index 8a206ee..0000000 --- a/src/bsnmp/asn1.c +++ /dev/null @@ -1,1000 +0,0 @@ -/* - * Copyright (c) 2001-2003 - * Fraunhofer Institute for Open Communication Systems (FhG Fokus). - * All rights reserved. - * - * Author: Harti Brandt <harti@freebsd.org> - * - * Redistribution 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 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 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 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. - * - * $Begemot: bsnmp/lib/asn1.c,v 1.28 2004/08/06 08:46:49 brandt Exp $ - * - * ASN.1 for SNMP. - */ -#include <sys/types.h> -#include <stdio.h> -#include <stdlib.h> -#include <stdarg.h> -#include <string.h> -#include <stdint.h> -#include <assert.h> -#include "asn1.h" - -static void asn_error_func(const struct asn_buf *, const char *, ...); - -void (*asn_error)(const struct asn_buf *, const char *, ...) = asn_error_func; - -/* - * Read the next header. This reads the tag (note, that only single - * byte tags are supported for now) and the length field. The length field - * is restricted to a 32-bit value. - * All errors of this function stop the decoding. - */ -enum asn_err -asn_get_header(struct asn_buf *b, u_char *type, asn_len_t *len) -{ - u_int length; - - if (b->asn_len == 0) { - asn_error(b, "no identifier for header"); - return (ASN_ERR_EOBUF); - } - *type = *b->asn_cptr; - if ((*type & ASN_TYPE_MASK) > 0x30) { - asn_error(b, "types > 0x30 not supported (%u)", - *type & ASN_TYPE_MASK); - return (ASN_ERR_FAILED); - } - b->asn_cptr++; - b->asn_len--; - if (b->asn_len == 0) { - asn_error(b, "no length field"); - return (ASN_ERR_EOBUF); - } - if (*b->asn_cptr & 0x80) { - length = *b->asn_cptr++ & 0x7f; - b->asn_len--; - if (length == 0) { - asn_error(b, "indefinite length not supported"); - return (ASN_ERR_FAILED); - } - if (length > ASN_MAXLENLEN) { - asn_error(b, "long length too long (%u)", length); - return (ASN_ERR_FAILED); - } - if (length > b->asn_len) { - asn_error(b, "long length truncated"); - return (ASN_ERR_EOBUF); - } - *len = 0; - while (length--) { - *len = (*len << 8) | *b->asn_cptr++; - b->asn_len--; - } - } else { - *len = *b->asn_cptr++; - b->asn_len--; - } - return (ASN_ERR_OK); -} - -/* - * Write a length field (restricted to values < 2^32-1) and return the - * number of bytes this field takes. If ptr is NULL, the length is computed - * but nothing is written. If the length would be too large return 0. - */ -static u_int -asn_put_len(u_char *ptr, asn_len_t len) -{ - u_int lenlen, lenlen1; - asn_len_t tmp; - - if (len > ASN_MAXLEN) { - asn_error(NULL, "encoding length too long: (%u)", len); - return (0); - } - - if (len <= 127) { - if (ptr) - *ptr++ = (u_char)len; - return (1); - } else { - lenlen = 0; - /* compute number of bytes for value (is at least 1) */ - for (tmp = len; tmp != 0; tmp >>= 8) - lenlen++; - if (ptr != NULL) { - *ptr++ = (u_char)lenlen | 0x80; - lenlen1 = lenlen; - while (lenlen1-- > 0) { - ptr[lenlen1] = len & 0xff; - len >>= 8; - } - } - return (lenlen + 1); - } -} - -/* - * Write a header (tag and length fields). - * Tags are restricted to one byte tags (value <= 0x30) and the - * lenght field to 16-bit. All errors stop the encoding. - */ -enum asn_err -asn_put_header(struct asn_buf *b, u_char type, asn_len_t len) -{ - u_int lenlen; - - /* tag field */ - if ((type & ASN_TYPE_MASK) > 0x30) { - asn_error(NULL, "types > 0x30 not supported (%u)", - type & ASN_TYPE_MASK); - return (ASN_ERR_FAILED); - } - if (b->asn_len == 0) - return (ASN_ERR_EOBUF); - - *b->asn_ptr++ = type; - b->asn_len--; - - /* length field */ - if ((lenlen = asn_put_len(NULL, len)) == 0) - return (ASN_ERR_FAILED); - if (b->asn_len < lenlen) - return (ASN_ERR_EOBUF); - - (void)asn_put_len(b->asn_ptr, len); - b->asn_ptr += lenlen; - b->asn_len -= lenlen; - return (ASN_ERR_OK); -} - - -/* - * This constructs a temporary sequence header with space for the maximum - * length field (three byte). Set the pointer that ptr points to to the - * start of the encoded header. This is used for a later call to - * asn_commit_header which will fix-up the length field and move the - * value if needed. All errors should stop the encoding. - */ -#define TEMP_LEN (1 + ASN_MAXLENLEN + 1) -enum asn_err -asn_put_temp_header(struct asn_buf *b, u_char type, u_char **ptr) -{ - int ret; - - if (b->asn_len < TEMP_LEN) - return (ASN_ERR_EOBUF); - *ptr = b->asn_ptr; - if ((ret = asn_put_header(b, type, ASN_MAXLEN)) == ASN_ERR_OK) - assert(b->asn_ptr == *ptr + TEMP_LEN); - return (ret); -} -enum asn_err -asn_commit_header(struct asn_buf *b, u_char *ptr) -{ - asn_len_t len; - u_int lenlen, shift; - - /* compute length of encoded value without header */ - len = b->asn_ptr - (ptr + TEMP_LEN); - - /* insert length. may not fail. */ - lenlen = asn_put_len(ptr + 1, len); - if (lenlen > TEMP_LEN - 1) - return (ASN_ERR_FAILED); - - if (lenlen < TEMP_LEN - 1) { - /* shift value down */ - shift = (TEMP_LEN - 1) - lenlen; - memmove(ptr + 1 + lenlen, ptr + TEMP_LEN, len); - b->asn_ptr -= shift; - b->asn_len += shift; - } - return (ASN_ERR_OK); -} -#undef TEMP_LEN - -/* - * BER integer. This may be used to get a signed 64 bit integer at maximum. - * The maximum length should be checked by the caller. This cannot overflow - * if the caller ensures that len is at maximum 8. - * - * <bytes> - */ -static enum asn_err -asn_get_real_integer(struct asn_buf *b, asn_len_t len, int64_t *vp) -{ - uint64_t val; - int neg = 0; - enum asn_err err; - - if (b->asn_len < len) { - asn_error(b, "truncated integer"); - return (ASN_ERR_EOBUF); - } - if (len == 0) { - asn_error(b, "zero-length integer"); - *vp = 0; - return (ASN_ERR_BADLEN); - } - err = ASN_ERR_OK; - if (len > 8) - err = ASN_ERR_RANGE; - else if (len > 1 && - ((*b->asn_cptr == 0x00 && (b->asn_cptr[1] & 0x80) == 0) || - (*b->asn_cptr == 0xff && (b->asn_cptr[1] & 0x80) == 0x80))) { - asn_error(b, "non-minimal integer"); - err = ASN_ERR_BADLEN; - } - - if (*b->asn_cptr & 0x80) - neg = 1; - val = 0; - while (len--) { - val <<= 8; - val |= neg ? (u_char)~*b->asn_cptr : *b->asn_cptr; - b->asn_len--; - b->asn_cptr++; - } - if (neg) { - *vp = -(int64_t)val - 1; - } else - *vp = (int64_t)val; - return (err); -} - -/* - * Write a signed integer with the given type. The caller has to ensure - * that the actual value is ok for this type. - */ -static enum asn_err -asn_put_real_integer(struct asn_buf *b, u_char type, int64_t ival) -{ - int i, neg = 0; -# define OCTETS 8 - u_char buf[OCTETS]; - uint64_t val; - enum asn_err ret; - - if (ival < 0) { - /* this may fail if |INT64_MIN| > |INT64_MAX| and - * the value is between * INT64_MIN <= ival < -(INT64_MAX+1) */ - val = (uint64_t)-(ival + 1); - neg = 1; - } else - val = (uint64_t)ival; - - /* split the value into octets */ - for (i = OCTETS - 1; i >= 0; i--) { - buf[i] = val & 0xff; - if (neg) - buf[i] = ~buf[i]; - val >>= 8; - } - /* no leading 9 zeroes or ones */ - for (i = 0; i < OCTETS - 1; i++) - if (!((buf[i] == 0xff && (buf[i + 1] & 0x80) != 0) || - (buf[i] == 0x00 && (buf[i + 1] & 0x80) == 0))) - break; - if ((ret = asn_put_header(b, type, OCTETS - i))) - return (ret); - if (OCTETS - (u_int)i > b->asn_len) - return (ASN_ERR_EOBUF); - - while (i < OCTETS) { - *b->asn_ptr++ = buf[i++]; - b->asn_len--; - } - return (ASN_ERR_OK); -# undef OCTETS -} - - -/* - * The same for unsigned 64-bitters. Here we have the problem, that overflow - * can happen, because the value maybe 9 bytes long. In this case the - * first byte must be 0. - */ -static enum asn_err -asn_get_real_unsigned(struct asn_buf *b, asn_len_t len, uint64_t *vp) -{ - enum asn_err err; - - if (b->asn_len < len) { - asn_error(b, "truncated integer"); - return (ASN_ERR_EOBUF); - } - if (len == 0) { - asn_error(b, "zero-length integer"); - *vp = 0; - return (ASN_ERR_BADLEN); - } - err = ASN_ERR_OK; - *vp = 0; - if ((*b->asn_cptr & 0x80) || (len == 9 && *b->asn_cptr != 0)) { - /* negative integer or too larger */ - *vp = 0xffffffffffffffffULL; - err = ASN_ERR_RANGE; - } else if (len > 1 && - *b->asn_cptr == 0x00 && (b->asn_cptr[1] & 0x80) == 0) { - asn_error(b, "non-minimal unsigned"); - err = ASN_ERR_BADLEN; - } - - while (len--) { - *vp = (*vp << 8) | *b->asn_cptr++; - b->asn_len--; - } - return (err); -} - - -/* - * Values with the msb on need 9 octets. - */ -static int -asn_put_real_unsigned(struct asn_buf *b, u_char type, uint64_t val) -{ - int i; -# define OCTETS 9 - u_char buf[OCTETS]; - enum asn_err ret; - - /* split the value into octets */ - for (i = OCTETS - 1; i >= 0; i--) { - buf[i] = val & 0xff; - val >>= 8; - } - /* no leading 9 zeroes */ - for (i = 0; i < OCTETS - 1; i++) - if (!(buf[i] == 0x00 && (buf[i + 1] & 0x80) == 0)) - break; - if ((ret = asn_put_header(b, type, OCTETS - i))) - return (ret); - if (OCTETS - (u_int)i > b->asn_len) - return (ASN_ERR_EOBUF); - - while (i < OCTETS) { - *b->asn_ptr++ = buf[i++]; - b->asn_len--; - } -#undef OCTETS - return (ASN_ERR_OK); -} - -/* - * The ASN.1 INTEGER type is restricted to 32-bit signed by the SMI. - */ -enum asn_err -asn_get_integer_raw(struct asn_buf *b, asn_len_t len, int32_t *vp) -{ - int64_t val; - enum asn_err ret; - - if ((ret = asn_get_real_integer(b, len, &val)) == ASN_ERR_OK) { - if (len > 4) - ret = ASN_ERR_BADLEN; - else if (val > INT32_MAX || val < INT32_MIN) - /* may not happen */ - ret = ASN_ERR_RANGE; - *vp = (int32_t)val; - } - return (ret); -} - -enum asn_err -asn_get_integer(struct asn_buf *b, int32_t *vp) -{ - asn_len_t len; - u_char type; - enum asn_err err; - - if ((err = asn_get_header(b, &type, &len)) != ASN_ERR_OK) - return (err); - if (type != ASN_TYPE_INTEGER) { - asn_error(b, "bad type for integer (%u)", type); - return (ASN_ERR_TAG); - } - - return (asn_get_integer_raw(b, len, vp)); -} - -enum asn_err -asn_put_integer(struct asn_buf *b, int32_t val) -{ - return (asn_put_real_integer(b, ASN_TYPE_INTEGER, val)); -} - -/* - * OCTETSTRING - * - * <0x04> <len> <data ...> - * - * Get an octetstring. noctets must point to the buffer size and on - * return will contain the size of the octetstring, regardless of the - * buffer size. - */ -enum asn_err -asn_get_octetstring_raw(struct asn_buf *b, asn_len_t len, u_char *octets, - u_int *noctets) -{ - enum asn_err err = ASN_ERR_OK; - - if (*noctets < len) { - asn_error(b, "octetstring truncated"); - err = ASN_ERR_RANGE; - } - if (b->asn_len < len) { - asn_error(b, "truncatet octetstring"); - return (ASN_ERR_EOBUF); - } - if (*noctets < len) - memcpy(octets, b->asn_cptr, *noctets); - else - memcpy(octets, b->asn_cptr, len); - *noctets = len; - b->asn_cptr += len; - b->asn_len -= len; - return (err); -} - -enum asn_err -asn_get_octetstring(struct asn_buf *b, u_char *octets, u_int *noctets) -{ - enum asn_err err; - u_char type; - asn_len_t len; - - if ((err = asn_get_header(b, &type, &len)) != ASN_ERR_OK) - return (err); - if (type != ASN_TYPE_OCTETSTRING) { - asn_error(b, "bad type for octetstring (%u)", type); - return (ASN_ERR_TAG); - } - return (asn_get_octetstring_raw(b, len, octets, noctets)); -} - -enum asn_err -asn_put_octetstring(struct asn_buf *b, const u_char *octets, u_int noctets) -{ - enum asn_err ret; - - if ((ret = asn_put_header(b, ASN_TYPE_OCTETSTRING, noctets)) != ASN_ERR_OK) - return (ret); - if (b->asn_len < noctets) - return (ASN_ERR_EOBUF); - - memcpy(b->asn_ptr, octets, noctets); - b->asn_ptr += noctets; - b->asn_len -= noctets; - return (ASN_ERR_OK); -} - -/* - * NULL - * - * <0x05> <0x00> - */ -enum asn_err -asn_get_null_raw(struct asn_buf *b, asn_len_t len) -{ - if (len != 0) { - if (b->asn_len < len) { - asn_error(b, "truncated NULL"); - return (ASN_ERR_EOBUF); - } - asn_error(b, "bad length for NULL (%u)", len); - b->asn_len -= len; - b->asn_ptr += len; - return (ASN_ERR_BADLEN); - } - return (ASN_ERR_OK); -} - -enum asn_err -asn_get_null(struct asn_buf *b) -{ - u_char type; - asn_len_t len; - enum asn_err err; - - if ((err = asn_get_header(b, &type, &len)) != ASN_ERR_OK) - return (err); - if (type != ASN_TYPE_NULL) { - asn_error(b, "bad type for NULL (%u)", type); - return (ASN_ERR_TAG); - } - return (asn_get_null_raw(b, len)); -} - -enum asn_err -asn_put_null(struct asn_buf *b) -{ - return (asn_put_header(b, ASN_TYPE_NULL, 0)); -} - -enum asn_err -asn_put_exception(struct asn_buf *b, u_int except) -{ - return (asn_put_header(b, ASN_CLASS_CONTEXT | except, 0)); -} - -/* - * OBJID - * - * <0x06> <len> <subid...> - */ -enum asn_err -asn_get_objid_raw(struct asn_buf *b, asn_len_t len, struct asn_oid *oid) -{ - asn_subid_t subid; - enum asn_err err; - - if (b->asn_len < len) { - asn_error(b, "truncated OBJID"); - return (ASN_ERR_EOBUF); - } - oid->len = 0; - if (len == 0) { - asn_error(b, "short OBJID"); - oid->subs[oid->len++] = 0; - oid->subs[oid->len++] = 0; - return (ASN_ERR_BADLEN); - } - err = ASN_ERR_OK; - while (len != 0) { - if (oid->len == ASN_MAXOIDLEN) { - asn_error(b, "OID too long (%u)", oid->len); - b->asn_cptr += len; - b->asn_len -= len; - return (ASN_ERR_BADLEN); - } - subid = 0; - do { - if (len == 0) { - asn_error(b, "unterminated subid"); - return (ASN_ERR_EOBUF); - } - if (subid > (ASN_MAXID >> 7)) { - asn_error(b, "OBID subid too larger"); - err = ASN_ERR_RANGE; - } - subid = (subid << 7) | (*b->asn_cptr & 0x7f); - len--; - b->asn_len--; - } while (*b->asn_cptr++ & 0x80); - if (oid->len == 0) { - if (subid < 80) { - oid->subs[oid->len++] = subid / 40; - oid->subs[oid->len++] = subid % 40; - } else { - oid->subs[oid->len++] = 2; - oid->subs[oid->len++] = subid - 80; - } - } else { - oid->subs[oid->len++] = subid; - } - } - return (err); - -} - -enum asn_err -asn_get_objid(struct asn_buf *b, struct asn_oid *oid) -{ - u_char type; - asn_len_t len; - enum asn_err err; - - if ((err = asn_get_header(b, &type, &len)) != ASN_ERR_OK) - return (err); - if (type != ASN_TYPE_OBJID) { - asn_error(b, "bad type for OBJID (%u)", type); - return (ASN_ERR_TAG); - } - return (asn_get_objid_raw(b, len, oid)); -} - -enum asn_err -asn_put_objid(struct asn_buf *b, const struct asn_oid *oid) -{ - asn_subid_t first, sub; - enum asn_err err, err1; - u_int i, oidlen; - asn_len_t len; - - err = ASN_ERR_OK; - if (oid->len == 0) { - /* illegal */ - asn_error(NULL, "short oid"); - err = ASN_ERR_RANGE; - first = 0; - oidlen = 2; - } else if (oid->len == 1) { - /* illegal */ - asn_error(b, "short oid"); - if (oid->subs[0] > 2) - asn_error(NULL, "oid[0] too large (%u)", oid->subs[0]); - err = ASN_ERR_RANGE; - first = oid->subs[0] * 40; - oidlen = 2; - } else { - if (oid->len > ASN_MAXOIDLEN) { - asn_error(NULL, "oid too long %u", oid->len); - err = ASN_ERR_RANGE; - } - if (oid->subs[0] > 2 || - (oid->subs[0] < 2 && oid->subs[0] >= 40)) { - asn_error(NULL, "oid out of range (%u,%u)", - oid->subs[0], oid->subs[1]); - err = ASN_ERR_RANGE; - } - first = 40 * oid->subs[0] + oid->subs[1]; - oidlen = oid->len; - } - len = 0; - for (i = 1; i < oidlen; i++) { - sub = (i == 1) ? first : oid->subs[i]; - if (sub > ASN_MAXID) { - asn_error(NULL, "oid subid too large"); - err = ASN_ERR_RANGE; - } - len += (sub <= 0x7f) ? 1 - : (sub <= 0x3fff) ? 2 - : (sub <= 0x1fffff) ? 3 - : (sub <= 0xfffffff) ? 4 - : 5; - } - if ((err1 = asn_put_header(b, ASN_TYPE_OBJID, len)) != ASN_ERR_OK) - return (err1); - if (b->asn_len < len) - return (ASN_ERR_EOBUF); - - for (i = 1; i < oidlen; i++) { - sub = (i == 1) ? first : oid->subs[i]; - if (sub <= 0x7f) { - *b->asn_ptr++ = sub; - b->asn_len--; - } else if (sub <= 0x3fff) { - *b->asn_ptr++ = (sub >> 7) | 0x80; - *b->asn_ptr++ = sub & 0x7f; - b->asn_len -= 2; - } else if (sub <= 0x1fffff) { - *b->asn_ptr++ = (sub >> 14) | 0x80; - *b->asn_ptr++ = ((sub >> 7) & 0x7f) | 0x80; - *b->asn_ptr++ = sub & 0x7f; - b->asn_len -= 3; - } else if (sub <= 0xfffffff) { - *b->asn_ptr++ = (sub >> 21) | 0x80; - *b->asn_ptr++ = ((sub >> 14) & 0x7f) | 0x80; - *b->asn_ptr++ = ((sub >> 7) & 0x7f) | 0x80; - *b->asn_ptr++ = sub & 0x7f; - b->asn_len -= 4; - } else { - *b->asn_ptr++ = (sub >> 28) | 0x80; - *b->asn_ptr++ = ((sub >> 21) & 0x7f) | 0x80; - *b->asn_ptr++ = ((sub >> 14) & 0x7f) | 0x80; - *b->asn_ptr++ = ((sub >> 7) & 0x7f) | 0x80; - *b->asn_ptr++ = sub & 0x7f; - b->asn_len -= 5; - } - } - return (err); -} -/* - * SEQUENCE header - * - * <0x10|0x20> <len> <data...> - */ -enum asn_err -asn_get_sequence(struct asn_buf *b, asn_len_t *len) -{ - u_char type; - enum asn_err err; - - if ((err = asn_get_header(b, &type, len)) != ASN_ERR_OK) - return (err); - if (type != (ASN_TYPE_SEQUENCE|ASN_TYPE_CONSTRUCTED)) { - asn_error(b, "bad sequence type %u", type); - return (ASN_ERR_TAG); - } - if (*len > b->asn_len) { - asn_error(b, "truncated sequence"); - return (ASN_ERR_EOBUF); - } - return (ASN_ERR_OK); -} - -/* - * Application types - * - * 0x40 4 MSB 2MSB 2LSB LSB - */ -enum asn_err -asn_get_ipaddress_raw(struct asn_buf *b, asn_len_t len, u_char *addr) -{ - u_int i; - - if (b->asn_len < len) { - asn_error(b, "truncated ip-address"); - return (ASN_ERR_EOBUF); - } - if (len < 4) { - asn_error(b, "short length for ip-Address %u", len); - for (i = 0; i < len; i++) - *addr++ = *b->asn_cptr++; - while (i++ < len) - *addr++ = 0; - b->asn_len -= len; - return (ASN_ERR_BADLEN); - } - for (i = 0; i < 4; i++) - *addr++ = *b->asn_cptr++; - b->asn_cptr += len - 4; - b->asn_len -= len; - return (ASN_ERR_OK); -} - -enum asn_err -asn_get_ipaddress(struct asn_buf *b, u_char *addr) -{ - u_char type; - asn_len_t len; - enum asn_err err; - - if ((err = asn_get_header(b, &type, &len)) != ASN_ERR_OK) - return (err); - if (type != (ASN_CLASS_APPLICATION|ASN_APP_IPADDRESS)) { - asn_error(b, "bad type for ip-address %u", type); - return (ASN_ERR_TAG); - } - return (asn_get_ipaddress_raw(b, len, addr)); -} - -enum asn_err -asn_put_ipaddress(struct asn_buf *b, const u_char *addr) -{ - enum asn_err err; - - if ((err = asn_put_header(b, ASN_CLASS_APPLICATION|ASN_APP_IPADDRESS, - 4)) != ASN_ERR_OK) - return (err); - if (b->asn_len < 4) - return (ASN_ERR_EOBUF); - - memcpy(b->asn_ptr, addr, 4); - b->asn_ptr += 4; - b->asn_len -= 4; - return (ASN_ERR_OK); -} - - -/* - * UNSIGNED32 - * - * 0x42|0x41 <len> ... - */ -enum asn_err -asn_get_uint32_raw(struct asn_buf *b, asn_len_t len, uint32_t *vp) -{ - uint64_t v; - enum asn_err err; - - if ((err = asn_get_real_unsigned(b, len, &v)) == ASN_ERR_OK) { - if (len > 5) { - asn_error(b, "uint32 too long %u", len); - err = ASN_ERR_BADLEN; - } else if (v > UINT32_MAX) { - asn_error(b, "uint32 too large %llu", v); - err = ASN_ERR_RANGE; - } - *vp = (uint32_t)v; - } - return (err); -} - -enum asn_err -asn_put_uint32(struct asn_buf *b, u_char type, uint32_t val) -{ - uint64_t v = val; - - return (asn_put_real_unsigned(b, ASN_CLASS_APPLICATION|type, v)); -} - -/* - * COUNTER64 - * 0x46 <len> ... - */ -enum asn_err -asn_get_counter64_raw(struct asn_buf *b, asn_len_t len, uint64_t *vp) -{ - return (asn_get_real_unsigned(b, len, vp)); -} - -enum asn_err -asn_put_counter64(struct asn_buf *b, uint64_t val) -{ - return (asn_put_real_unsigned(b, - ASN_CLASS_APPLICATION | ASN_APP_COUNTER64, val)); -} - -/* - * TimeTicks - * 0x43 <len> ... - */ -enum asn_err -asn_get_timeticks(struct asn_buf *b, uint32_t *vp) -{ - asn_len_t len; - u_char type; - enum asn_err err; - - if ((err = asn_get_header(b, &type, &len)) != ASN_ERR_OK) - return (err); - if (type != (ASN_CLASS_APPLICATION|ASN_APP_TIMETICKS)) { - asn_error(b, "bad type for timeticks %u", type); - return (ASN_ERR_TAG); - } - return (asn_get_uint32_raw(b, len, vp)); -} - -enum asn_err -asn_put_timeticks(struct asn_buf *b, uint32_t val) -{ - uint64_t v = val; - - return (asn_put_real_unsigned(b, - ASN_CLASS_APPLICATION | ASN_APP_TIMETICKS, v)); -} - -/* - * Construct a new OID by taking a range of sub ids of the original oid. - */ -void -asn_slice_oid(struct asn_oid *dest, const struct asn_oid *src, - u_int from, u_int to) -{ - if (from >= to) { - dest->len = 0; - return; - } - dest->len = to - from; - memcpy(dest->subs, &src->subs[from], dest->len * sizeof(dest->subs[0])); -} - -/* - * Append from to to - */ -void -asn_append_oid(struct asn_oid *to, const struct asn_oid *from) -{ - memcpy(&to->subs[to->len], &from->subs[0], - from->len * sizeof(from->subs[0])); - to->len += from->len; -} - -/* - * Skip a value - */ -enum asn_err -asn_skip(struct asn_buf *b, asn_len_t len) -{ - if (b->asn_len < len) - return (ASN_ERR_EOBUF); - b->asn_cptr += len; - b->asn_len -= len; - return (ASN_ERR_OK); -} - -/* - * Compare two OIDs. - * - * o1 < o2 : -1 - * o1 > o2 : +1 - * o1 = o2 : 0 - */ -int -asn_compare_oid(const struct asn_oid *o1, const struct asn_oid *o2) -{ - u_long i; - - for (i = 0; i < o1->len && i < o2->len; i++) { - if (o1->subs[i] < o2->subs[i]) - return (-1); - if (o1->subs[i] > o2->subs[i]) - return (+1); - } - if (o1->len < o2->len) - return (-1); - if (o1->len > o2->len) - return (+1); - return (0); -} - -/* - * Check whether an OID is a sub-string of another OID. - */ -int -asn_is_suboid(const struct asn_oid *o1, const struct asn_oid *o2) -{ - u_long i; - - for (i = 0; i < o1->len; i++) - if (i >= o2->len || o1->subs[i] != o2->subs[i]) - return (0); - return (1); -} - -/* - * Put a string representation of an oid into a user buffer. This buffer - * is assumed to be at least ASN_OIDSTRLEN characters long. - * - * sprintf is assumed not to fail here. - */ -char * -asn_oid2str_r(const struct asn_oid *oid, char *buf) -{ - u_int len, i; - char *ptr; - - if ((len = oid->len) > ASN_MAXOIDLEN) - len = ASN_MAXOIDLEN; - buf[0] = '\0'; - for (i = 0, ptr = buf; i < len; i++) { - if (i > 0) - *ptr++ = '.'; - ptr += sprintf(ptr, "%u", oid->subs[i]); - } - return (buf); -} - -/* - * Make a string from an OID in a private buffer. - */ -char * -asn_oid2str(const struct asn_oid *oid) -{ - static char str[ASN_OIDSTRLEN]; - - return (asn_oid2str_r(oid, str)); -} - - -static void -asn_error_func(const struct asn_buf *b, const char *err, ...) -{ - va_list ap; - u_long i; - - fprintf(stderr, "ASN.1: "); - va_start(ap, err); - vfprintf(stderr, err, ap); - va_end(ap); - - if (b != NULL) { - fprintf(stderr, " at"); - for (i = 0; b->asn_len > i; i++) - fprintf(stderr, " %02x", b->asn_cptr[i]); - } - fprintf(stderr, "\n"); -} diff --git a/src/bsnmp/asn1.h b/src/bsnmp/asn1.h deleted file mode 100644 index 23b7814..0000000 --- a/src/bsnmp/asn1.h +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Copyright (c) 2001-2003 - * Fraunhofer Institute for Open Communication Systems (FhG Fokus). - * All rights reserved. - * - * Author: Harti Brandt <harti@freebsd.org> - * - * Redistribution 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 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 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 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. - * - * $Begemot: bsnmp/lib/asn1.h,v 1.18 2004/08/06 08:46:50 brandt Exp $ - * - * ASN.1 for SNMP - */ -#ifndef asn1_h_ -#define asn1_h_ - -#include <sys/types.h> -#include <stdint.h> - -struct asn_buf { - union { - u_char *ptr; - const u_char *cptr; - } asn_u; - size_t asn_len; -}; -#define asn_cptr asn_u.cptr -#define asn_ptr asn_u.ptr - -/* these restrictions are in the SMI */ -#define ASN_MAXID 0xffffffff -#define ASN_MAXOIDLEN 128 - -/* the string needed for this (with trailing zero) */ -#define ASN_OIDSTRLEN (ASN_MAXOIDLEN * (10 + 1) - 1 + 1) - -/* type of subidentifiers */ -typedef uint32_t asn_subid_t; - -struct asn_oid { - u_int len; - asn_subid_t subs[ASN_MAXOIDLEN]; -}; - -enum asn_err { - /* conversion was ok */ - ASN_ERR_OK = 0, - /* conversion failed and stopped */ - ASN_ERR_FAILED = 1 | 0x1000, - /* length field bad, value skipped */ - ASN_ERR_BADLEN = 2, - /* out of buffer, stopped */ - ASN_ERR_EOBUF = 3 | 0x1000, - /* length ok, but value is out of range */ - ASN_ERR_RANGE = 4, - /* not the expected tag, stopped */ - ASN_ERR_TAG = 5 | 0x1000, -}; -#define ASN_ERR_STOPPED(E) (((E) & 0x1000) != 0) - -/* type for the length field of encoded values. The length is restricted - * to 65535, but using uint16_t would give conversion warnings on gcc */ -typedef uint32_t asn_len_t; /* could be also uint16_t */ - -/* maximal length of a long length field without the length of the length */ -#define ASN_MAXLEN 65535 -#define ASN_MAXLENLEN 2 /* number of bytes in a length */ - -/* maximum size of an octet string as per SMIv2 */ -#define ASN_MAXOCTETSTRING 65535 - -extern void (*asn_error)(const struct asn_buf *, const char *, ...); - -enum asn_err asn_get_header(struct asn_buf *, u_char *, asn_len_t *); -enum asn_err asn_put_header(struct asn_buf *, u_char, asn_len_t); - -enum asn_err asn_put_temp_header(struct asn_buf *, u_char, u_char **); -enum asn_err asn_commit_header(struct asn_buf *, u_char *); - -enum asn_err asn_get_integer_raw(struct asn_buf *, asn_len_t, int32_t *); -enum asn_err asn_get_integer(struct asn_buf *, int32_t *); -enum asn_err asn_put_integer(struct asn_buf *, int32_t); - -enum asn_err asn_get_octetstring_raw(struct asn_buf *, asn_len_t, u_char *, u_int *); -enum asn_err asn_get_octetstring(struct asn_buf *, u_char *, u_int *); -enum asn_err asn_put_octetstring(struct asn_buf *, const u_char *, u_int); - -enum asn_err asn_get_null_raw(struct asn_buf *b, asn_len_t); -enum asn_err asn_get_null(struct asn_buf *); -enum asn_err asn_put_null(struct asn_buf *); - -enum asn_err asn_put_exception(struct asn_buf *, u_int); - -enum asn_err asn_get_objid_raw(struct asn_buf *, asn_len_t, struct asn_oid *); -enum asn_err asn_get_objid(struct asn_buf *, struct asn_oid *); -enum asn_err asn_put_objid(struct asn_buf *, const struct asn_oid *); - -enum asn_err asn_get_sequence(struct asn_buf *, asn_len_t *); - -enum asn_err asn_get_ipaddress_raw(struct asn_buf *, asn_len_t, u_char *); -enum asn_err asn_get_ipaddress(struct asn_buf *, u_char *); -enum asn_err asn_put_ipaddress(struct asn_buf *, const u_char *); - -enum asn_err asn_get_uint32_raw(struct asn_buf *, asn_len_t, uint32_t *); -enum asn_err asn_put_uint32(struct asn_buf *, u_char, uint32_t); - -enum asn_err asn_get_counter64_raw(struct asn_buf *, asn_len_t, uint64_t *); -enum asn_err asn_put_counter64(struct asn_buf *, uint64_t); - -enum asn_err asn_get_timeticks(struct asn_buf *, uint32_t *); -enum asn_err asn_put_timeticks(struct asn_buf *, uint32_t); - -enum asn_err asn_skip(struct asn_buf *, asn_len_t); - -/* - * Utility functions for OIDs - */ -/* get a sub-OID from the middle of another OID */ -void asn_slice_oid(struct asn_oid *, const struct asn_oid *, u_int, u_int); - -/* append an OID to another one */ -void asn_append_oid(struct asn_oid *, const struct asn_oid *); - -/* compare two OIDs */ -int asn_compare_oid(const struct asn_oid *, const struct asn_oid *); - -/* check whether the first is a suboid of the second one */ -int asn_is_suboid(const struct asn_oid *, const struct asn_oid *); - -/* format an OID into a user buffer of size ASN_OIDSTRLEN */ -char *asn_oid2str_r(const struct asn_oid *, char *); - -/* format an OID into a private static buffer */ -char *asn_oid2str(const struct asn_oid *); - -enum { - ASN_TYPE_BOOLEAN = 0x01, - ASN_TYPE_INTEGER = 0x02, - ASN_TYPE_BITSTRING = 0x03, - ASN_TYPE_OCTETSTRING = 0x04, - ASN_TYPE_NULL = 0x05, - ASN_TYPE_OBJID = 0x06, - ASN_TYPE_SEQUENCE = 0x10, - - ASN_TYPE_CONSTRUCTED = 0x20, - ASN_CLASS_UNIVERSAL = 0x00, - ASN_CLASS_APPLICATION = 0x40, - ASN_CLASS_CONTEXT = 0x80, - ASN_CLASS_PRIVATE = 0xc0, - ASN_TYPE_MASK = 0x1f, - - ASN_APP_IPADDRESS = 0x00, - ASN_APP_COUNTER = 0x01, - ASN_APP_GAUGE = 0x02, - ASN_APP_TIMETICKS = 0x03, - ASN_APP_OPAQUE = 0x04, /* not implemented */ - ASN_APP_COUNTER64 = 0x06, - - ASN_EXCEPT_NOSUCHOBJECT = 0x00, - ASN_EXCEPT_NOSUCHINSTANCE = 0x01, - ASN_EXCEPT_ENDOFMIBVIEW = 0x02, -}; - -#endif diff --git a/src/bsnmp/snmp.c b/src/bsnmp/snmp.c deleted file mode 100644 index f758262..0000000 --- a/src/bsnmp/snmp.c +++ /dev/null @@ -1,1081 +0,0 @@ -/* - * Copyright (c) 2001-2003 - * Fraunhofer Institute for Open Communication Systems (FhG Fokus). - * All rights reserved. - * - * Author: Harti Brandt <harti@freebsd.org> - * - * Redistribution 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 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 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 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. - * - * $Begemot: bsnmp/lib/snmp.c,v 1.38 2004/08/06 08:46:53 brandt Exp $ - * - * SNMP - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <stdarg.h> -#include <stdint.h> -#include <string.h> -#include <ctype.h> -#include <netdb.h> -#include <errno.h> - -#include "asn1.h" -#include "snmp.h" -#include "snmppriv.h" - -static void snmp_error_func(const char *, ...); -static void snmp_printf_func(const char *, ...); - -void (*snmp_error)(const char *, ...) = snmp_error_func; -void (*snmp_printf)(const char *, ...) = snmp_printf_func; - -/* - * Get the next variable binding from the list. - * ASN errors on the sequence or the OID are always fatal. - */ -static enum asn_err -get_var_binding(struct asn_buf *b, struct snmp_value *binding) -{ - u_char type; - asn_len_t len, trailer; - enum asn_err err; - - if (asn_get_sequence(b, &len) != ASN_ERR_OK) { - snmp_error("cannot parse varbind header"); - return (ASN_ERR_FAILED); - } - - /* temporary truncate the length so that the parser does not - * eat up bytes behind the sequence in the case the encoding is - * wrong of inner elements. */ - trailer = b->asn_len - len; - b->asn_len = len; - - if (asn_get_objid(b, &binding->var) != ASN_ERR_OK) { - snmp_error("cannot parse binding objid"); - return (ASN_ERR_FAILED); - } - if (asn_get_header(b, &type, &len) != ASN_ERR_OK) { - snmp_error("cannot parse binding value header"); - return (ASN_ERR_FAILED); - } - - switch (type) { - - case ASN_TYPE_NULL: - binding->syntax = SNMP_SYNTAX_NULL; - err = asn_get_null_raw(b, len); - break; - - case ASN_TYPE_INTEGER: - binding->syntax = SNMP_SYNTAX_INTEGER; - err = asn_get_integer_raw(b, len, &binding->v.integer); - break; - - case ASN_TYPE_OCTETSTRING: - binding->syntax = SNMP_SYNTAX_OCTETSTRING; - binding->v.octetstring.octets = malloc(len); - if (binding->v.octetstring.octets == NULL) { - snmp_error("%s", strerror(errno)); - return (ASN_ERR_FAILED); - } - binding->v.octetstring.len = len; - err = asn_get_octetstring_raw(b, len, - binding->v.octetstring.octets, - &binding->v.octetstring.len); - if (ASN_ERR_STOPPED(err)) { - free(binding->v.octetstring.octets); - binding->v.octetstring.octets = NULL; - } - break; - - case ASN_TYPE_OBJID: - binding->syntax = SNMP_SYNTAX_OID; - err = asn_get_objid_raw(b, len, &binding->v.oid); - break; - - case ASN_CLASS_APPLICATION|ASN_APP_IPADDRESS: - binding->syntax = SNMP_SYNTAX_IPADDRESS; - err = asn_get_ipaddress_raw(b, len, binding->v.ipaddress); - break; - - case ASN_CLASS_APPLICATION|ASN_APP_TIMETICKS: - binding->syntax = SNMP_SYNTAX_TIMETICKS; - err = asn_get_uint32_raw(b, len, &binding->v.uint32); - break; - - case ASN_CLASS_APPLICATION|ASN_APP_COUNTER: - binding->syntax = SNMP_SYNTAX_COUNTER; - err = asn_get_uint32_raw(b, len, &binding->v.uint32); - break; - - case ASN_CLASS_APPLICATION|ASN_APP_GAUGE: - binding->syntax = SNMP_SYNTAX_GAUGE; - err = asn_get_uint32_raw(b, len, &binding->v.uint32); - break; - - case ASN_CLASS_APPLICATION|ASN_APP_COUNTER64: - binding->syntax = SNMP_SYNTAX_COUNTER64; - err = asn_get_counter64_raw(b, len, &binding->v.counter64); - break; - - case ASN_CLASS_CONTEXT | ASN_EXCEPT_NOSUCHOBJECT: - binding->syntax = SNMP_SYNTAX_NOSUCHOBJECT; - err = asn_get_null_raw(b, len); - break; - - case ASN_CLASS_CONTEXT | ASN_EXCEPT_NOSUCHINSTANCE: - binding->syntax = SNMP_SYNTAX_NOSUCHINSTANCE; - err = asn_get_null_raw(b, len); - break; - - case ASN_CLASS_CONTEXT | ASN_EXCEPT_ENDOFMIBVIEW: - binding->syntax = SNMP_SYNTAX_ENDOFMIBVIEW; - err = asn_get_null_raw(b, len); - break; - - default: - if ((err = asn_skip(b, len)) == ASN_ERR_OK) - err = ASN_ERR_TAG; - snmp_error("bad binding value type 0x%x", type); - break; - } - - if (ASN_ERR_STOPPED(err)) { - snmp_error("cannot parse binding value"); - return (err); - } - - if (b->asn_len != 0) - snmp_error("ignoring junk at end of binding"); - - b->asn_len = trailer; - - return (err); -} - -/* - * Parse the different PDUs contents. Any ASN error in the outer components - * are fatal. Only errors in variable values may be tolerated. If all - * components can be parsed it returns either ASN_ERR_OK or the first - * error that was found. - */ -enum asn_err -snmp_parse_pdus_hdr(struct asn_buf *b, struct snmp_pdu *pdu, asn_len_t *lenp) -{ - if (pdu->type == SNMP_PDU_TRAP) { - if (asn_get_objid(b, &pdu->enterprise) != ASN_ERR_OK) { - snmp_error("cannot parse trap enterprise"); - return (ASN_ERR_FAILED); - } - if (asn_get_ipaddress(b, pdu->agent_addr) != ASN_ERR_OK) { - snmp_error("cannot parse trap agent address"); - return (ASN_ERR_FAILED); - } - if (asn_get_integer(b, &pdu->generic_trap) != ASN_ERR_OK) { - snmp_error("cannot parse 'generic-trap'"); - return (ASN_ERR_FAILED); - } - if (asn_get_integer(b, &pdu->specific_trap) != ASN_ERR_OK) { - snmp_error("cannot parse 'specific-trap'"); - return (ASN_ERR_FAILED); - } - if (asn_get_timeticks(b, &pdu->time_stamp) != ASN_ERR_OK) { - snmp_error("cannot parse trap 'time-stamp'"); - return (ASN_ERR_FAILED); - } - } else { - if (asn_get_integer(b, &pdu->request_id) != ASN_ERR_OK) { - snmp_error("cannot parse 'request-id'"); - return (ASN_ERR_FAILED); - } - if (asn_get_integer(b, &pdu->error_status) != ASN_ERR_OK) { - snmp_error("cannot parse 'error_status'"); - return (ASN_ERR_FAILED); - } - if (asn_get_integer(b, &pdu->error_index) != ASN_ERR_OK) { - snmp_error("cannot parse 'error_index'"); - return (ASN_ERR_FAILED); - } - } - - if (asn_get_sequence(b, lenp) != ASN_ERR_OK) { - snmp_error("cannot get varlist header"); - return (ASN_ERR_FAILED); - } - - return (ASN_ERR_OK); -} - -static enum asn_err -parse_pdus(struct asn_buf *b, struct snmp_pdu *pdu, int32_t *ip) -{ - asn_len_t len, trailer; - struct snmp_value *v; - enum asn_err err, err1; - - err = snmp_parse_pdus_hdr(b, pdu, &len); - if (ASN_ERR_STOPPED(err)) - return (err); - - trailer = b->asn_len - len; - - v = pdu->bindings; - err = ASN_ERR_OK; - while (b->asn_len != 0) { - if (pdu->nbindings == SNMP_MAX_BINDINGS) { - snmp_error("too many bindings (> %u) in PDU", - SNMP_MAX_BINDINGS); - return (ASN_ERR_FAILED); - } - err1 = get_var_binding(b, v); - if (ASN_ERR_STOPPED(err1)) - return (ASN_ERR_FAILED); - if (err1 != ASN_ERR_OK && err == ASN_ERR_OK) { - err = err1; - *ip = pdu->nbindings + 1; - } - pdu->nbindings++; - v++; - } - - b->asn_len = trailer; - - return (err); -} - -/* - * Parse the outer SEQUENCE value. ASN_ERR_TAG means 'bad version'. - */ -enum asn_err -snmp_parse_message_hdr(struct asn_buf *b, struct snmp_pdu *pdu, asn_len_t *lenp) -{ - int32_t version; - u_char type; - u_int comm_len; - - if (asn_get_integer(b, &version) != ASN_ERR_OK) { - snmp_error("cannot decode version"); - return (ASN_ERR_FAILED); - } - - if (version == 0) { - pdu->version = SNMP_V1; - } else if (version == 1) { - pdu->version = SNMP_V2c; - } else { - pdu->version = SNMP_Verr; - snmp_error("unsupported SNMP version"); - return (ASN_ERR_TAG); - } - - comm_len = SNMP_COMMUNITY_MAXLEN; - if (asn_get_octetstring(b, (u_char *)pdu->community, - &comm_len) != ASN_ERR_OK) { - snmp_error("cannot decode community"); - return (ASN_ERR_FAILED); - } - pdu->community[comm_len] = '\0'; - - if (asn_get_header(b, &type, lenp) != ASN_ERR_OK) { - snmp_error("cannot get pdu header"); - return (ASN_ERR_FAILED); - } - if ((type & ~ASN_TYPE_MASK) != - (ASN_TYPE_CONSTRUCTED | ASN_CLASS_CONTEXT)) { - snmp_error("bad pdu header tag"); - return (ASN_ERR_FAILED); - } - pdu->type = type & ASN_TYPE_MASK; - - switch (pdu->type) { - - case SNMP_PDU_GET: - case SNMP_PDU_GETNEXT: - case SNMP_PDU_RESPONSE: - case SNMP_PDU_SET: - break; - - case SNMP_PDU_TRAP: - if (pdu->version != SNMP_V1) { - snmp_error("bad pdu type %u", pdu->type); - return (ASN_ERR_FAILED); - } - break; - - case SNMP_PDU_GETBULK: - case SNMP_PDU_INFORM: - case SNMP_PDU_TRAP2: - case SNMP_PDU_REPORT: - if (pdu->version == SNMP_V1) { - snmp_error("bad pdu type %u", pdu->type); - return (ASN_ERR_FAILED); - } - break; - - default: - snmp_error("bad pdu type %u", pdu->type); - return (ASN_ERR_FAILED); - } - - - if (*lenp > b->asn_len) { - snmp_error("pdu length too long"); - return (ASN_ERR_FAILED); - } - - return (ASN_ERR_OK); -} - -static enum asn_err -parse_message(struct asn_buf *b, struct snmp_pdu *pdu, int32_t *ip) -{ - enum asn_err err; - asn_len_t len, trailer; - - err = snmp_parse_message_hdr(b, pdu, &len); - if (ASN_ERR_STOPPED(err)) - return (err); - - trailer = b->asn_len - len; - b->asn_len = len; - - err = parse_pdus(b, pdu, ip); - if (ASN_ERR_STOPPED(err)) - return (ASN_ERR_FAILED); - - if (b->asn_len != 0) - snmp_error("ignoring trailing junk after pdu"); - - b->asn_len = trailer; - - return (err); -} - -/* - * Decode the PDU except for the variable bindings itself. - * If decoding fails because of a bad binding, but the rest can be - * decoded, ip points to the index of the failed variable (errors - * OORANGE, BADLEN or BADVERS). - */ -enum snmp_code -snmp_pdu_decode(struct asn_buf *b, struct snmp_pdu *pdu, int32_t *ip) -{ - asn_len_t len; - - memset(pdu, 0, sizeof(*pdu)); - - if (asn_get_sequence(b, &len) != ASN_ERR_OK) { - snmp_error("cannot decode pdu header"); - return (SNMP_CODE_FAILED); - } - if (b->asn_len < len) { - snmp_error("outer sequence value too short"); - return (SNMP_CODE_FAILED); - } - if (b->asn_len != len) { - snmp_error("ignoring trailing junk in message"); - b->asn_len = len; - } - - switch (parse_message(b, pdu, ip)) { - - case ASN_ERR_OK: - return (SNMP_CODE_OK); - - case ASN_ERR_FAILED: - case ASN_ERR_EOBUF: - snmp_pdu_free(pdu); - return (SNMP_CODE_FAILED); - - case ASN_ERR_BADLEN: - return (SNMP_CODE_BADLEN); - - case ASN_ERR_RANGE: - return (SNMP_CODE_OORANGE); - - case ASN_ERR_TAG: - if (pdu->version == SNMP_Verr) - return (SNMP_CODE_BADVERS); - else - return (SNMP_CODE_BADENC); - } - - return (SNMP_CODE_OK); -} - -/* - * Check whether what we have is the complete PDU by snooping at the - * enclosing structure header. This returns: - * -1 if there are ASN.1 errors - * 0 if we need more data - * > 0 the length of this PDU - */ -int -snmp_pdu_snoop(const struct asn_buf *b0) -{ - u_int length; - asn_len_t len; - struct asn_buf b = *b0; - - /* <0x10|0x20> <len> <data...> */ - - if (b.asn_len == 0) - return (0); - if (b.asn_cptr[0] != (ASN_TYPE_SEQUENCE | ASN_TYPE_CONSTRUCTED)) { - asn_error(&b, "bad sequence type %u", b.asn_cptr[0]); - return (-1); - } - b.asn_len--; - b.asn_cptr++; - - if (b.asn_len == 0) - return (0); - - if (*b.asn_cptr & 0x80) { - /* long length */ - length = *b.asn_cptr++ & 0x7f; - b.asn_len--; - if (length == 0) { - asn_error(&b, "indefinite length not supported"); - return (-1); - } - if (length > ASN_MAXLENLEN) { - asn_error(&b, "long length too long (%u)", length); - return (-1); - } - if (length > b.asn_len) - return (0); - len = 0; - while (length--) { - len = (len << 8) | *b.asn_cptr++; - b.asn_len--; - } - } else { - len = *b.asn_cptr++; - b.asn_len--; - } - - if (len > b.asn_len) - return (0); - - return (len + b.asn_cptr - b0->asn_cptr); -} - -/* - * Encode the SNMP PDU without the variable bindings field. - * We do this the rather uneffective way by - * moving things around and assuming that the length field will never - * use more than 2 bytes. - * We need a number of pointers to apply the fixes afterwards. - */ -enum snmp_code -snmp_pdu_encode_header(struct asn_buf *b, struct snmp_pdu *pdu) -{ - enum asn_err err; - - if (asn_put_temp_header(b, (ASN_TYPE_SEQUENCE|ASN_TYPE_CONSTRUCTED), - &pdu->outer_ptr) != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - - if (pdu->version == SNMP_V1) - err = asn_put_integer(b, 0); - else if (pdu->version == SNMP_V2c) - err = asn_put_integer(b, 1); - else - return (SNMP_CODE_BADVERS); - if (err != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - - if (asn_put_octetstring(b, (u_char *)pdu->community, - strlen(pdu->community)) != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - - if (asn_put_temp_header(b, (ASN_TYPE_CONSTRUCTED | ASN_CLASS_CONTEXT | - pdu->type), &pdu->pdu_ptr) != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - - if (pdu->type == SNMP_PDU_TRAP) { - if (pdu->version != SNMP_V1 || - asn_put_objid(b, &pdu->enterprise) != ASN_ERR_OK || - asn_put_ipaddress(b, pdu->agent_addr) != ASN_ERR_OK || - asn_put_integer(b, pdu->generic_trap) != ASN_ERR_OK || - asn_put_integer(b, pdu->specific_trap) != ASN_ERR_OK || - asn_put_timeticks(b, pdu->time_stamp) != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - } else { - if (pdu->version == SNMP_V1 && (pdu->type == SNMP_PDU_GETBULK || - pdu->type == SNMP_PDU_INFORM || - pdu->type == SNMP_PDU_TRAP2 || - pdu->type == SNMP_PDU_REPORT)) - return (SNMP_CODE_FAILED); - - if (asn_put_integer(b, pdu->request_id) != ASN_ERR_OK || - asn_put_integer(b, pdu->error_status) != ASN_ERR_OK || - asn_put_integer(b, pdu->error_index) != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - } - - if (asn_put_temp_header(b, (ASN_TYPE_SEQUENCE|ASN_TYPE_CONSTRUCTED), - &pdu->vars_ptr) != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - - return (SNMP_CODE_OK); -} - -enum snmp_code -snmp_fix_encoding(struct asn_buf *b, const struct snmp_pdu *pdu) -{ - if (asn_commit_header(b, pdu->vars_ptr) != ASN_ERR_OK || - asn_commit_header(b, pdu->pdu_ptr) != ASN_ERR_OK || - asn_commit_header(b, pdu->outer_ptr) != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - return (SNMP_CODE_OK); -} - -/* - * Encode a binding. Caller must ensure, that the syntax is ok for that version. - * Be sure not to cobber b, when something fails. - */ -enum asn_err -snmp_binding_encode(struct asn_buf *b, const struct snmp_value *binding) -{ - u_char *ptr; - enum asn_err err; - struct asn_buf save = *b; - - if ((err = asn_put_temp_header(b, (ASN_TYPE_SEQUENCE | - ASN_TYPE_CONSTRUCTED), &ptr)) != ASN_ERR_OK) { - *b = save; - return (err); - } - - if ((err = asn_put_objid(b, &binding->var)) != ASN_ERR_OK) { - *b = save; - return (err); - } - - switch (binding->syntax) { - - case SNMP_SYNTAX_NULL: - err = asn_put_null(b); - break; - - case SNMP_SYNTAX_INTEGER: - err = asn_put_integer(b, binding->v.integer); - break; - - case SNMP_SYNTAX_OCTETSTRING: - err = asn_put_octetstring(b, binding->v.octetstring.octets, - binding->v.octetstring.len); - break; - - case SNMP_SYNTAX_OID: - err = asn_put_objid(b, &binding->v.oid); - break; - - case SNMP_SYNTAX_IPADDRESS: - err = asn_put_ipaddress(b, binding->v.ipaddress); - break; - - case SNMP_SYNTAX_TIMETICKS: - err = asn_put_uint32(b, ASN_APP_TIMETICKS, binding->v.uint32); - break; - - case SNMP_SYNTAX_COUNTER: - err = asn_put_uint32(b, ASN_APP_COUNTER, binding->v.uint32); - break; - - case SNMP_SYNTAX_GAUGE: - err = asn_put_uint32(b, ASN_APP_GAUGE, binding->v.uint32); - break; - - case SNMP_SYNTAX_COUNTER64: - err = asn_put_counter64(b, binding->v.counter64); - break; - - case SNMP_SYNTAX_NOSUCHOBJECT: - err = asn_put_exception(b, ASN_EXCEPT_NOSUCHOBJECT); - break; - - case SNMP_SYNTAX_NOSUCHINSTANCE: - err = asn_put_exception(b, ASN_EXCEPT_NOSUCHINSTANCE); - break; - - case SNMP_SYNTAX_ENDOFMIBVIEW: - err = asn_put_exception(b, ASN_EXCEPT_ENDOFMIBVIEW); - break; - } - - if (err != ASN_ERR_OK) { - *b = save; - return (err); - } - - err = asn_commit_header(b, ptr); - if (err != ASN_ERR_OK) { - *b = save; - return (err); - } - - return (ASN_ERR_OK); -} - -/* - * Encode an PDU. - */ -enum snmp_code -snmp_pdu_encode(struct snmp_pdu *pdu, struct asn_buf *resp_b) -{ - u_int idx; - enum snmp_code err; - - if ((err = snmp_pdu_encode_header(resp_b, pdu)) != SNMP_CODE_OK) - return (err); - for (idx = 0; idx < pdu->nbindings; idx++) - if ((err = snmp_binding_encode(resp_b, &pdu->bindings[idx])) - != ASN_ERR_OK) - return (SNMP_CODE_FAILED); - - return (snmp_fix_encoding(resp_b, pdu)); -} - -static void -dump_binding(const struct snmp_value *b) -{ - u_int i; - char buf[ASN_OIDSTRLEN]; - - snmp_printf("%s=", asn_oid2str_r(&b->var, buf)); - switch (b->syntax) { - - case SNMP_SYNTAX_NULL: - snmp_printf("NULL"); - break; - - case SNMP_SYNTAX_INTEGER: - snmp_printf("INTEGER %d", b->v.integer); - break; - - case SNMP_SYNTAX_OCTETSTRING: - snmp_printf("OCTET STRING %lu:", b->v.octetstring.len); - for (i = 0; i < b->v.octetstring.len; i++) - snmp_printf(" %02x", b->v.octetstring.octets[i]); - break; - - case SNMP_SYNTAX_OID: - snmp_printf("OID %s", asn_oid2str_r(&b->v.oid, buf)); - break; - - case SNMP_SYNTAX_IPADDRESS: - snmp_printf("IPADDRESS %u.%u.%u.%u", b->v.ipaddress[0], - b->v.ipaddress[1], b->v.ipaddress[2], b->v.ipaddress[3]); - break; - - case SNMP_SYNTAX_COUNTER: - snmp_printf("COUNTER %u", b->v.uint32); - break; - - case SNMP_SYNTAX_GAUGE: - snmp_printf("GAUGE %u", b->v.uint32); - break; - - case SNMP_SYNTAX_TIMETICKS: - snmp_printf("TIMETICKS %u", b->v.uint32); - break; - - case SNMP_SYNTAX_COUNTER64: - snmp_printf("COUNTER64 %lld", b->v.counter64); - break; - - case SNMP_SYNTAX_NOSUCHOBJECT: - snmp_printf("NoSuchObject"); - break; - - case SNMP_SYNTAX_NOSUCHINSTANCE: - snmp_printf("NoSuchInstance"); - break; - - case SNMP_SYNTAX_ENDOFMIBVIEW: - snmp_printf("EndOfMibView"); - break; - - default: - snmp_printf("UNKNOWN SYNTAX %u", b->syntax); - break; - } -} - -static __inline void -dump_bindings(const struct snmp_pdu *pdu) -{ - u_int i; - - for (i = 0; i < pdu->nbindings; i++) { - snmp_printf(" [%u]: ", i); - dump_binding(&pdu->bindings[i]); - snmp_printf("\n"); - } -} - -static __inline void -dump_notrap(const struct snmp_pdu *pdu) -{ - snmp_printf(" request_id=%d", pdu->request_id); - snmp_printf(" error_status=%d", pdu->error_status); - snmp_printf(" error_index=%d\n", pdu->error_index); - dump_bindings(pdu); -} - -void -snmp_pdu_dump(const struct snmp_pdu *pdu) -{ - char buf[ASN_OIDSTRLEN]; - const char *vers; - static const char *types[] = { - [SNMP_PDU_GET] = "GET", - [SNMP_PDU_GETNEXT] = "GETNEXT", - [SNMP_PDU_RESPONSE] = "RESPONSE", - [SNMP_PDU_SET] = "SET", - [SNMP_PDU_TRAP] = "TRAPv1", - [SNMP_PDU_GETBULK] = "GETBULK", - [SNMP_PDU_INFORM] = "INFORM", - [SNMP_PDU_TRAP2] = "TRAPv2", - [SNMP_PDU_REPORT] = "REPORT", - }; - - if (pdu->version == SNMP_V1) - vers = "SNMPv1"; - else if (pdu->version == SNMP_V2c) - vers = "SNMPv2c"; - else - vers = "v?"; - - switch (pdu->type) { - case SNMP_PDU_TRAP: - snmp_printf("%s %s '%s'", types[pdu->type], vers, pdu->community); - snmp_printf(" enterprise=%s", asn_oid2str_r(&pdu->enterprise, buf)); - snmp_printf(" agent_addr=%u.%u.%u.%u", pdu->agent_addr[0], - pdu->agent_addr[1], pdu->agent_addr[2], pdu->agent_addr[3]); - snmp_printf(" generic_trap=%d", pdu->generic_trap); - snmp_printf(" specific_trap=%d", pdu->specific_trap); - snmp_printf(" time-stamp=%u\n", pdu->time_stamp); - dump_bindings(pdu); - break; - - case SNMP_PDU_GET: - case SNMP_PDU_GETNEXT: - case SNMP_PDU_RESPONSE: - case SNMP_PDU_SET: - case SNMP_PDU_GETBULK: - case SNMP_PDU_INFORM: - case SNMP_PDU_TRAP2: - case SNMP_PDU_REPORT: - snmp_printf("%s %s '%s'", types[pdu->type], vers, pdu->community); - dump_notrap(pdu); - break; - - default: - snmp_printf("bad pdu type %u\n", pdu->type); - break; - } -} - -void -snmp_value_free(struct snmp_value *value) -{ - if (value->syntax == SNMP_SYNTAX_OCTETSTRING) - free(value->v.octetstring.octets); - value->syntax = SNMP_SYNTAX_NULL; -} - -int -snmp_value_copy(struct snmp_value *to, const struct snmp_value *from) -{ - to->var = from->var; - to->syntax = from->syntax; - - if (from->syntax == SNMP_SYNTAX_OCTETSTRING) { - if ((to->v.octetstring.len = from->v.octetstring.len) == 0) - to->v.octetstring.octets = NULL; - else { - to->v.octetstring.octets = malloc(to->v.octetstring.len); - if (to->v.octetstring.octets == NULL) - return (-1); - (void)memcpy(to->v.octetstring.octets, - from->v.octetstring.octets, to->v.octetstring.len); - } - } else - to->v = from->v; - return (0); -} - -void -snmp_pdu_free(struct snmp_pdu *pdu) -{ - u_int i; - - for (i = 0; i < pdu->nbindings; i++) - snmp_value_free(&pdu->bindings[i]); -} - -/* - * Parse an ASCII SNMP value into the binary form - */ -int -snmp_value_parse(const char *str, enum snmp_syntax syntax, union snmp_values *v) -{ - char *end; - - switch (syntax) { - - case SNMP_SYNTAX_NULL: - case SNMP_SYNTAX_NOSUCHOBJECT: - case SNMP_SYNTAX_NOSUCHINSTANCE: - case SNMP_SYNTAX_ENDOFMIBVIEW: - if (*str != '\0') - return (-1); - return (0); - - case SNMP_SYNTAX_INTEGER: - v->integer = strtoll(str, &end, 0); - if (*end != '\0') - return (-1); - return (0); - - case SNMP_SYNTAX_OCTETSTRING: - { - u_long len; /* actual length of string */ - u_long alloc; /* allocate length of string */ - u_char *octs; /* actual octets */ - u_long oct; /* actual octet */ - u_char *nocts; /* to avoid memory leak */ - u_char c; /* actual character */ - -# define STUFFC(C) \ - if (alloc == len) { \ - alloc += 100; \ - if ((nocts = realloc(octs, alloc)) == NULL) { \ - free(octs); \ - return (-1); \ - } \ - octs = nocts; \ - } \ - octs[len++] = (C); - - len = alloc = 0; - octs = NULL; - - if (*str == '"') { - str++; - while((c = *str++) != '\0') { - if (c == '"') { - if (*str != '\0') { - free(octs); - return (-1); - } - break; - } - if (c == '\\') { - switch (c = *str++) { - - case '\\': - break; - case 'a': - c = '\a'; - break; - case 'b': - c = '\b'; - break; - case 'f': - c = '\f'; - break; - case 'n': - c = '\n'; - break; - case 'r': - c = '\r'; - break; - case 't': - c = '\t'; - break; - case 'v': - c = '\v'; - break; - case 'x': - c = 0; - if (!isxdigit(*str)) - break; - if (isdigit(*str)) - c = *str++ - '0'; - else if (isupper(*str)) - c = *str++ - 'A' + 10; - else - c = *str++ - 'a' + 10; - if (!isxdigit(*str)) - break; - if (isdigit(*str)) - c += *str++ - '0'; - else if (isupper(*str)) - c += *str++ - 'A' + 10; - else - c += *str++ - 'a' + 10; - break; - case '0': case '1': case '2': - case '3': case '4': case '5': - case '6': case '7': - c = *str++ - '0'; - if (*str < '0' || *str > '7') - break; - c = *str++ - '0'; - if (*str < '0' || *str > '7') - break; - c = *str++ - '0'; - break; - default: - break; - } - } - STUFFC(c); - } - } else { - while (*str != '\0') { - oct = strtoul(str, &end, 16); - str = end; - if (oct > 0xff) { - free(octs); - return (-1); - } - STUFFC(oct); - if (*str == ':') - str++; - else if(*str != '\0') { - free(octs); - return (-1); - } - } - } - v->octetstring.octets = octs; - v->octetstring.len = len; - return (0); -# undef STUFFC - } - - case SNMP_SYNTAX_OID: - { - u_long subid; - - v->oid.len = 0; - - for (;;) { - if (v->oid.len == ASN_MAXOIDLEN) - return (-1); - subid = strtoul(str, &end, 10); - str = end; - if (subid > ASN_MAXID) - return (-1); - v->oid.subs[v->oid.len++] = (asn_subid_t)subid; - if (*str == '\0') - break; - if (*str != '.') - return (-1); - str++; - } - return (0); - } - - case SNMP_SYNTAX_IPADDRESS: - { - struct hostent *he; - u_long ip[4]; - int n; - - if (sscanf(str, "%lu.%lu.%lu.%lu%n", &ip[0], &ip[1], &ip[2], - &ip[3], &n) == 4 && (size_t)n == strlen(str) && - ip[0] <= 0xff && ip[1] <= 0xff && - ip[2] <= 0xff && ip[3] <= 0xff) { - v->ipaddress[0] = (u_char)ip[0]; - v->ipaddress[1] = (u_char)ip[1]; - v->ipaddress[2] = (u_char)ip[2]; - v->ipaddress[3] = (u_char)ip[3]; - return (0); - } - - if ((he = gethostbyname(str)) == NULL) - return (-1); - if (he->h_addrtype != AF_INET) - return (-1); - - v->ipaddress[0] = he->h_addr[0]; - v->ipaddress[1] = he->h_addr[1]; - v->ipaddress[2] = he->h_addr[2]; - v->ipaddress[3] = he->h_addr[3]; - return (0); - } - - case SNMP_SYNTAX_COUNTER: - case SNMP_SYNTAX_GAUGE: - case SNMP_SYNTAX_TIMETICKS: - { - uint64_t sub; - - sub = strtoull(str, &end, 0); - if (*end != '\0' || sub > 0xffffffff) - return (-1); - v->uint32 = (uint32_t)sub; - return (0); - } - - case SNMP_SYNTAX_COUNTER64: - v->counter64 = strtoull(str, &end, 0); - if (*end != '\0') - return (-1); - return (0); - } - abort(); -} - -static void -snmp_error_func(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - fprintf(stderr, "SNMP: "); - vfprintf(stderr, fmt, ap); - fprintf(stderr, "\n"); - va_end(ap); -} - -static void -snmp_printf_func(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - va_end(ap); -} diff --git a/src/bsnmp/snmp.h b/src/bsnmp/snmp.h deleted file mode 100644 index 1ae0775..0000000 --- a/src/bsnmp/snmp.h +++ /dev/null @@ -1,174 +0,0 @@ -/* - * Copyright (c) 2001-2003 - * Fraunhofer Institute for Open Communication Systems (FhG Fokus). - * All rights reserved. - * - * Author: Harti Brandt <harti@freebsd.org> - * - * Redistribution 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 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 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 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. - * - * $Begemot: bsnmp/lib/snmp.h,v 1.30 2004/08/06 08:46:54 brandt Exp $ - * - * Header file for SNMP functions. - */ -#ifndef snmp_h_ -#define snmp_h_ - -#include <sys/types.h> - -#define SNMP_COMMUNITY_MAXLEN 128 -#define SNMP_MAX_BINDINGS 100 - -enum snmp_syntax { - SNMP_SYNTAX_NULL = 0, - SNMP_SYNTAX_INTEGER, /* == INTEGER32 */ - SNMP_SYNTAX_OCTETSTRING, - SNMP_SYNTAX_OID, - SNMP_SYNTAX_IPADDRESS, - SNMP_SYNTAX_COUNTER, - SNMP_SYNTAX_GAUGE, /* == UNSIGNED32 */ - SNMP_SYNTAX_TIMETICKS, - - /* v2 additions */ - SNMP_SYNTAX_COUNTER64, - SNMP_SYNTAX_NOSUCHOBJECT, /* exception */ - SNMP_SYNTAX_NOSUCHINSTANCE, /* exception */ - SNMP_SYNTAX_ENDOFMIBVIEW, /* exception */ -}; - -struct snmp_value { - struct asn_oid var; - enum snmp_syntax syntax; - union snmp_values { - int32_t integer; /* also integer32 */ - struct { - u_int len; - u_char *octets; - } octetstring; - struct asn_oid oid; - u_char ipaddress[4]; - uint32_t uint32; /* also gauge32, counter32, - unsigned32, timeticks */ - uint64_t counter64; - } v; -}; - -enum snmp_version { - SNMP_Verr = 0, - SNMP_V1 = 1, - SNMP_V2c, -}; - -struct snmp_pdu { - char community[SNMP_COMMUNITY_MAXLEN + 1]; - enum snmp_version version; - u_int type; - - /* trap only */ - struct asn_oid enterprise; - u_char agent_addr[4]; - int32_t generic_trap; - int32_t specific_trap; - uint32_t time_stamp; - - /* others */ - int32_t request_id; - int32_t error_status; - int32_t error_index; - - /* fixes for encoding */ - u_char *outer_ptr; - u_char *pdu_ptr; - u_char *vars_ptr; - - struct snmp_value bindings[SNMP_MAX_BINDINGS]; - u_int nbindings; -}; -#define snmp_v1_pdu snmp_pdu - -#define SNMP_PDU_GET 0 -#define SNMP_PDU_GETNEXT 1 -#define SNMP_PDU_RESPONSE 2 -#define SNMP_PDU_SET 3 -#define SNMP_PDU_TRAP 4 /* v1 */ -#define SNMP_PDU_GETBULK 5 /* v2 */ -#define SNMP_PDU_INFORM 6 /* v2 */ -#define SNMP_PDU_TRAP2 7 /* v2 */ -#define SNMP_PDU_REPORT 8 /* v2 */ - -#define SNMP_ERR_NOERROR 0 -#define SNMP_ERR_TOOBIG 1 -#define SNMP_ERR_NOSUCHNAME 2 /* v1 */ -#define SNMP_ERR_BADVALUE 3 /* v1 */ -#define SNMP_ERR_READONLY 4 /* v1 */ -#define SNMP_ERR_GENERR 5 -#define SNMP_ERR_NO_ACCESS 6 /* v2 */ -#define SNMP_ERR_WRONG_TYPE 7 /* v2 */ -#define SNMP_ERR_WRONG_LENGTH 8 /* v2 */ -#define SNMP_ERR_WRONG_ENCODING 9 /* v2 */ -#define SNMP_ERR_WRONG_VALUE 10 /* v2 */ -#define SNMP_ERR_NO_CREATION 11 /* v2 */ -#define SNMP_ERR_INCONS_VALUE 12 /* v2 */ -#define SNMP_ERR_RES_UNAVAIL 13 /* v2 */ -#define SNMP_ERR_COMMIT_FAILED 14 /* v2 */ -#define SNMP_ERR_UNDO_FAILED 15 /* v2 */ -#define SNMP_ERR_AUTH_ERR 16 /* v2 */ -#define SNMP_ERR_NOT_WRITEABLE 17 /* v2 */ -#define SNMP_ERR_INCONS_NAME 18 /* v2 */ - -#define SNMP_TRAP_COLDSTART 0 -#define SNMP_TRAP_WARMSTART 1 -#define SNMP_TRAP_LINKDOWN 2 -#define SNMP_TRAP_LINKUP 3 -#define SNMP_TRAP_AUTHENTICATION_FAILURE 4 -#define SNMP_TRAP_EGP_NEIGHBOR_LOSS 5 -#define SNMP_TRAP_ENTERPRISE 6 - -enum snmp_code { - SNMP_CODE_OK = 0, - SNMP_CODE_FAILED, - SNMP_CODE_BADVERS, - SNMP_CODE_BADLEN, - SNMP_CODE_BADENC, - SNMP_CODE_OORANGE, -}; - -void snmp_value_free(struct snmp_value *); -int snmp_value_parse(const char *, enum snmp_syntax, union snmp_values *); -int snmp_value_copy(struct snmp_value *, const struct snmp_value *); - -void snmp_pdu_free(struct snmp_pdu *); -enum snmp_code snmp_pdu_decode(struct asn_buf *b, struct snmp_pdu *pdu, int32_t *); -enum snmp_code snmp_pdu_encode(struct snmp_pdu *pdu, struct asn_buf *resp_b); - -int snmp_pdu_snoop(const struct asn_buf *); - -void snmp_pdu_dump(const struct snmp_pdu *pdu); - -extern void (*snmp_error)(const char *, ...); -extern void (*snmp_printf)(const char *, ...); - -#define TRUTH_MK(F) ((F) ? 1 : 2) -#define TRUTH_GET(T) (((T) == 1) ? 1 : 0) -#define TRUTH_OK(T) ((T) == 1 || (T) == 2) - -#endif diff --git a/src/bsnmp/snmppriv.h b/src/bsnmp/snmppriv.h deleted file mode 100644 index 87ef60e..0000000 --- a/src/bsnmp/snmppriv.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 2001-2003 - * Fraunhofer Institute for Open Communication Systems (FhG Fokus). - * All rights reserved. - * - * Author: Harti Brandt <harti@freebsd.org> - * - * Redistribution 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 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 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 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. - * - * $Begemot: bsnmp/lib/snmppriv.h,v 1.9 2004/08/06 08:46:58 brandt Exp $ - * - * Private functions. - */ -#include <sys/cdefs.h> - -enum asn_err snmp_binding_encode(struct asn_buf *, const struct snmp_value *); -enum snmp_code snmp_pdu_encode_header(struct asn_buf *, struct snmp_pdu *); -enum snmp_code snmp_fix_encoding(struct asn_buf *, const struct snmp_pdu *); -enum asn_err snmp_parse_message_hdr(struct asn_buf *b, struct snmp_pdu *pdu, - asn_len_t *lenp); -enum asn_err snmp_parse_pdus_hdr(struct asn_buf *b, struct snmp_pdu *pdu, - asn_len_t *lenp); - -#define DEFAULT_HOST "localhost" -#define DEFAULT_PORT "snmp" -#define DEFAULT_LOCAL "/var/run/snmp.sock" |