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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_asn1.h')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_asn1.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_asn1.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_asn1.h new file mode 100644 index 0000000..ec50d8c --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_asn1.h @@ -0,0 +1,108 @@ +/** + * @file + * Abstract Syntax Notation One (ISO 8824, 8825) codec. + */ + +/* + * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. + * Copyright (c) 2016 Elias Oenal. + * All rights reserved. + * + * 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. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. + * + * Author: Christiaan Simons <christiaan.simons@axon.tv> + * Martin Hentschel <info@cl-soft.de> + * Elias Oenal <lwip@eliasoenal.com> + */ + +#ifndef LWIP_HDR_APPS_SNMP_ASN1_H +#define LWIP_HDR_APPS_SNMP_ASN1_H + +#include "lwip/apps/snmp_opts.h" + +#if LWIP_SNMP + +#include "lwip/err.h" +#include "lwip/apps/snmp_core.h" +#include "snmp_pbuf_stream.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define SNMP_ASN1_TLV_INDEFINITE_LENGTH 0x80 + +#define SNMP_ASN1_CLASS_MASK 0xC0 +#define SNMP_ASN1_CONTENTTYPE_MASK 0x20 +#define SNMP_ASN1_DATATYPE_MASK 0x1F +#define SNMP_ASN1_DATATYPE_EXTENDED 0x1F /* DataType indicating that datatype is encoded in following bytes */ + +/* context specific (SNMP) tags (from SNMP spec. RFC1157) */ +#define SNMP_ASN1_CONTEXT_PDU_GET_REQ 0 +#define SNMP_ASN1_CONTEXT_PDU_GET_NEXT_REQ 1 +#define SNMP_ASN1_CONTEXT_PDU_GET_RESP 2 +#define SNMP_ASN1_CONTEXT_PDU_SET_REQ 3 +#define SNMP_ASN1_CONTEXT_PDU_TRAP 4 +#define SNMP_ASN1_CONTEXT_PDU_GET_BULK_REQ 5 + +#define SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_OBJECT 0 +#define SNMP_ASN1_CONTEXT_VARBIND_END_OF_MIB_VIEW 2 + +struct snmp_asn1_tlv +{ + u8_t type; /* only U8 because extended types are not specified by SNMP */ + u8_t type_len; /* encoded length of 'type' field (normally 1) */ + u8_t length_len; /* indicates how many bytes are required to encode the 'value_len' field */ + u16_t value_len; /* encoded length of the value */ +}; +#define SNMP_ASN1_TLV_HDR_LENGTH(tlv) ((tlv).type_len + (tlv).length_len) +#define SNMP_ASN1_TLV_LENGTH(tlv) ((tlv).type_len + (tlv).length_len + (tlv).value_len) +#define SNMP_ASN1_SET_TLV_PARAMS(tlv, type_, length_len_, value_len_) do { (tlv).type = (type_); (tlv).type_len = 0; (tlv).length_len = (length_len_); (tlv).value_len = (value_len_); } while (0); + +err_t snmp_asn1_dec_tlv(struct snmp_pbuf_stream* pbuf_stream, struct snmp_asn1_tlv* tlv); +err_t snmp_asn1_dec_u32t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t *value); +err_t snmp_asn1_dec_u64t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t *value); +err_t snmp_asn1_dec_s32t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, s32_t *value); +err_t snmp_asn1_dec_oid(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t* oid, u8_t* oid_len, u8_t oid_max_len); +err_t snmp_asn1_dec_raw(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u8_t *buf, u16_t* buf_len, u16_t buf_max_len); + +err_t snmp_ans1_enc_tlv(struct snmp_pbuf_stream* pbuf_stream, struct snmp_asn1_tlv* tlv); + +void snmp_asn1_enc_length_cnt(u16_t length, u8_t *octets_needed); +void snmp_asn1_enc_u32t_cnt(u32_t value, u16_t *octets_needed); +void snmp_asn1_enc_u64t_cnt(const u32_t *value, u16_t *octets_needed); +void snmp_asn1_enc_s32t_cnt(s32_t value, u16_t *octets_needed); +void snmp_asn1_enc_oid_cnt(const u32_t *oid, u16_t oid_len, u16_t *octets_needed); +err_t snmp_asn1_enc_oid(struct snmp_pbuf_stream* pbuf_stream, const u32_t *oid, u16_t oid_len); +err_t snmp_asn1_enc_s32t(struct snmp_pbuf_stream* pbuf_stream, u16_t octets_needed, s32_t value); +err_t snmp_asn1_enc_u32t(struct snmp_pbuf_stream* pbuf_stream, u16_t octets_needed, u32_t value); +err_t snmp_asn1_enc_u64t(struct snmp_pbuf_stream* pbuf_stream, u16_t octets_needed, const u32_t* value); +err_t snmp_asn1_enc_raw(struct snmp_pbuf_stream* pbuf_stream, const u8_t *raw, u16_t raw_len); + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_SNMP */ + +#endif /* LWIP_HDR_APPS_SNMP_ASN1_H */ |