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Richard Barry 2007-06-05 09:35:13 +00:00
parent 014d7f5b8f
commit 22e434dfaf
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Demo/Common/ethernet/lwIP/include/lwip/snmp_asn1.h
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/**
* @file
* Abstract Syntax Notation One (ISO 8824, 8825) codec.
*/
/*
* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
* 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>
*/
#ifndef __LWIP_SNMP_ASN1_H__
#define __LWIP_SNMP_ASN1_H__
#include "lwip/opt.h"
#include "arch/cc.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/snmp.h"
#define SNMP_ASN1_UNIV (!0x80 | !0x40)
#define SNMP_ASN1_APPLIC (!0x80 | 0x40)
#define SNMP_ASN1_CONTXT ( 0x80 | !0x40)
#define SNMP_ASN1_CONSTR (0x20)
#define SNMP_ASN1_PRIMIT (!0x20)
/* universal tags */
#define SNMP_ASN1_INTEG 2
#define SNMP_ASN1_OC_STR 4
#define SNMP_ASN1_NUL 5
#define SNMP_ASN1_OBJ_ID 6
#define SNMP_ASN1_SEQ 16
/* application specific (SNMP) tags */
#define SNMP_ASN1_IPADDR 0 /* octet string size(4) */
#define SNMP_ASN1_COUNTER 1 /* u32_t */
#define SNMP_ASN1_GAUGE 2 /* u32_t */
#define SNMP_ASN1_TIMETICKS 3 /* u32_t */
#define SNMP_ASN1_OPAQUE 4 /* octet string */
/* context specific (SNMP) tags */
#define SNMP_ASN1_PDU_GET_REQ 0
#define SNMP_ASN1_PDU_GET_NEXT_REQ 1
#define SNMP_ASN1_PDU_GET_RESP 2
#define SNMP_ASN1_PDU_SET_REQ 3
#define SNMP_ASN1_PDU_TRAP 4
err_t snmp_asn1_dec_type(struct pbuf *p, u16_t ofs, u8_t *type);
err_t snmp_asn1_dec_length(struct pbuf *p, u16_t ofs, u8_t *octets_used, u16_t *length);
err_t snmp_asn1_dec_u32t(struct pbuf *p, u16_t ofs, u16_t len, u32_t *value);
err_t snmp_asn1_dec_s32t(struct pbuf *p, u16_t ofs, u16_t len, s32_t *value);
err_t snmp_asn1_dec_oid(struct pbuf *p, u16_t ofs, u16_t len, struct snmp_obj_id *oid);
err_t snmp_asn1_dec_raw(struct pbuf *p, u16_t ofs, u16_t len, u16_t raw_len, u8_t *raw);
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_s32t_cnt(s32_t value, u16_t *octets_needed);
void snmp_asn1_enc_oid_cnt(u8_t ident_len, s32_t *ident, u16_t *octets_needed);
err_t snmp_asn1_enc_type(struct pbuf *p, u16_t ofs, u8_t type);
err_t snmp_asn1_enc_length(struct pbuf *p, u16_t ofs, u16_t length);
err_t snmp_asn1_enc_u32t(struct pbuf *p, u16_t ofs, u8_t octets_needed, u32_t value);
err_t snmp_asn1_enc_s32t(struct pbuf *p, u16_t ofs, u8_t octets_needed, s32_t value);
err_t snmp_asn1_enc_oid(struct pbuf *p, u16_t ofs, u8_t ident_len, s32_t *ident);
err_t snmp_asn1_enc_raw(struct pbuf *p, u16_t ofs, u8_t raw_len, u8_t *raw);
#endif
/**
* @file
* Abstract Syntax Notation One (ISO 8824, 8825) codec.
*/
/*
* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
* 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>
*/
#ifndef __LWIP_SNMP_ASN1_H__
#define __LWIP_SNMP_ASN1_H__
#include "lwip/opt.h"
#include "arch/cc.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/snmp.h"
#define SNMP_ASN1_UNIV (!0x80 | !0x40)
#define SNMP_ASN1_APPLIC (!0x80 | 0x40)
#define SNMP_ASN1_CONTXT ( 0x80 | !0x40)
#define SNMP_ASN1_CONSTR (0x20)
#define SNMP_ASN1_PRIMIT (!0x20)
/* universal tags */
#define SNMP_ASN1_INTEG 2
#define SNMP_ASN1_OC_STR 4
#define SNMP_ASN1_NUL 5
#define SNMP_ASN1_OBJ_ID 6
#define SNMP_ASN1_SEQ 16
/* application specific (SNMP) tags */
#define SNMP_ASN1_IPADDR 0 /* octet string size(4) */
#define SNMP_ASN1_COUNTER 1 /* u32_t */
#define SNMP_ASN1_GAUGE 2 /* u32_t */
#define SNMP_ASN1_TIMETICKS 3 /* u32_t */
#define SNMP_ASN1_OPAQUE 4 /* octet string */
/* context specific (SNMP) tags */
#define SNMP_ASN1_PDU_GET_REQ 0
#define SNMP_ASN1_PDU_GET_NEXT_REQ 1
#define SNMP_ASN1_PDU_GET_RESP 2
#define SNMP_ASN1_PDU_SET_REQ 3
#define SNMP_ASN1_PDU_TRAP 4
err_t snmp_asn1_dec_type(struct pbuf *p, u16_t ofs, u8_t *type);
err_t snmp_asn1_dec_length(struct pbuf *p, u16_t ofs, u8_t *octets_used, u16_t *length);
err_t snmp_asn1_dec_u32t(struct pbuf *p, u16_t ofs, u16_t len, u32_t *value);
err_t snmp_asn1_dec_s32t(struct pbuf *p, u16_t ofs, u16_t len, s32_t *value);
err_t snmp_asn1_dec_oid(struct pbuf *p, u16_t ofs, u16_t len, struct snmp_obj_id *oid);
err_t snmp_asn1_dec_raw(struct pbuf *p, u16_t ofs, u16_t len, u16_t raw_len, u8_t *raw);
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_s32t_cnt(s32_t value, u16_t *octets_needed);
void snmp_asn1_enc_oid_cnt(u8_t ident_len, s32_t *ident, u16_t *octets_needed);
err_t snmp_asn1_enc_type(struct pbuf *p, u16_t ofs, u8_t type);
err_t snmp_asn1_enc_length(struct pbuf *p, u16_t ofs, u16_t length);
err_t snmp_asn1_enc_u32t(struct pbuf *p, u16_t ofs, u8_t octets_needed, u32_t value);
err_t snmp_asn1_enc_s32t(struct pbuf *p, u16_t ofs, u8_t octets_needed, s32_t value);
err_t snmp_asn1_enc_oid(struct pbuf *p, u16_t ofs, u8_t ident_len, s32_t *ident);
err_t snmp_asn1_enc_raw(struct pbuf *p, u16_t ofs, u8_t raw_len, u8_t *raw);
#endif