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Add FreeRTOS-Plus directory.
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Richard Barry
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6798 changed files with 134949 additions and 19 deletions
253
FreeRTOS/Demo/Common/ethernet/lwIP/include/lwip/snmp_structs.h
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FreeRTOS/Demo/Common/ethernet/lwIP/include/lwip/snmp_structs.h
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/**
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* @file
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* Generic MIB tree structures.
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*
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* @todo namespace prefixes
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*/
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/*
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* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Christiaan Simons <christiaan.simons@axon.tv>
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*/
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#ifndef __LWIP_SNMP_STRUCTS_H__
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#define __LWIP_SNMP_STRUCTS_H__
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#include "lwip/opt.h"
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#if LWIP_SNMP
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#include "arch/cc.h"
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#include "lwip/snmp.h"
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#if SNMP_PRIVATE_MIB
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#include "private_mib.h"
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#endif
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/* MIB object instance */
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#define MIB_OBJECT_NONE 0
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#define MIB_OBJECT_SCALAR 1
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#define MIB_OBJECT_TAB 2
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/* MIB object access */
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#define MIB_OBJECT_READ_ONLY 0
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#define MIB_OBJECT_READ_WRITE 1
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#define MIB_OBJECT_WRITE_ONLY 2
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#define MIB_OBJECT_NOT_ACCESSIBLE 3
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/** object definition returned by (get_object_def)() */
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struct obj_def
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{
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/* MIB_OBJECT_NONE (0), MIB_OBJECT_SCALAR (1), MIB_OBJECT_TAB (2) */
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u8_t instance;
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/* 0 read-only, 1 read-write, 2 write-only, 3 not-accessible */
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u8_t access;
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/* ASN type for this object */
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u8_t asn_type;
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/* value length (host length) */
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u16_t v_len;
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/* length of instance part of supplied object identifier */
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u8_t id_inst_len;
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/* instance part of supplied object identifier */
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s32_t *id_inst_ptr;
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};
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struct snmp_name_ptr
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{
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u8_t ident_len;
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s32_t *ident;
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};
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/** MIB const scalar (.0) node */
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#define MIB_NODE_SC 0x01
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/** MIB const array node */
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#define MIB_NODE_AR 0x02
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/** MIB array node (mem_malloced from RAM) */
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#define MIB_NODE_RA 0x03
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/** MIB list root node (mem_malloced from RAM) */
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#define MIB_NODE_LR 0x04
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/** MIB node for external objects */
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#define MIB_NODE_EX 0x05
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/** node "base class" layout, the mandatory fields for a node */
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struct mib_node
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{
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/** returns struct obj_def for the given object identifier */
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void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
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/** returns object value for the given object identifier,
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@note the caller must allocate at least len bytes for the value */
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void (*get_value)(struct obj_def *od, u16_t len, void *value);
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/** tests length and/or range BEFORE setting */
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u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
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/** sets object value, only to be called when set_test() */
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void (*set_value)(struct obj_def *od, u16_t len, void *value);
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/** One out of MIB_NODE_AR, MIB_NODE_LR or MIB_NODE_EX */
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const u8_t node_type;
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/* array or max list length */
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const u16_t maxlength;
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};
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/** derived node for scalars .0 index */
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typedef struct mib_node mib_scalar_node;
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/** derived node, points to a fixed size const array
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of sub-identifiers plus a 'child' pointer */
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struct mib_array_node
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{
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/* inherited "base class" members */
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void (* const get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
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void (* const get_value)(struct obj_def *od, u16_t len, void *value);
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u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
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void (*set_value)(struct obj_def *od, u16_t len, void *value);
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const u8_t node_type;
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const u16_t maxlength;
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/* aditional struct members */
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const s32_t *objid;
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struct mib_node* const *nptr;
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};
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/** derived node, points to a fixed size mem_malloced array
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of sub-identifiers plus a 'child' pointer */
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struct mib_ram_array_node
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{
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/* inherited "base class" members */
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void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
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void (*get_value)(struct obj_def *od, u16_t len, void *value);
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u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
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void (*set_value)(struct obj_def *od, u16_t len, void *value);
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u8_t node_type;
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u16_t maxlength;
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/* aditional struct members */
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s32_t *objid;
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struct mib_node **nptr;
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};
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struct mib_list_node
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{
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struct mib_list_node *prev;
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struct mib_list_node *next;
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s32_t objid;
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struct mib_node *nptr;
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};
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/** derived node, points to a doubly linked list
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of sub-identifiers plus a 'child' pointer */
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struct mib_list_rootnode
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{
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/* inherited "base class" members */
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void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
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void (*get_value)(struct obj_def *od, u16_t len, void *value);
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u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
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void (*set_value)(struct obj_def *od, u16_t len, void *value);
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u8_t node_type;
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u16_t maxlength;
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/* aditional struct members */
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struct mib_list_node *head;
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struct mib_list_node *tail;
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/* counts list nodes in list */
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u16_t count;
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};
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/** derived node, has access functions for mib object in external memory or device
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using 'tree_level' and 'idx', with a range 0 .. (level_length() - 1) */
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struct mib_external_node
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{
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/* inherited "base class" members */
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void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
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void (*get_value)(struct obj_def *od, u16_t len, void *value);
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u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
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void (*set_value)(struct obj_def *od, u16_t len, void *value);
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u8_t node_type;
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u16_t maxlength;
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/* aditional struct members */
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/** points to an extenal (in memory) record of some sort of addressing
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information, passed to and interpreted by the funtions below */
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void* addr_inf;
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/** tree levels under this node */
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u8_t tree_levels;
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/** number of objects at this level */
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u16_t (*level_length)(void* addr_inf, u8_t level);
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/** compares object sub identifier with external id
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return zero when equal, nonzero when unequal */
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s32_t (*ident_cmp)(void* addr_inf, u8_t level, u16_t idx, s32_t sub_id);
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void (*get_objid)(void* addr_inf, u8_t level, u16_t idx, s32_t *sub_id);
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/** async Questions */
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void (*get_object_def_q)(void* addr_inf, u8_t rid, u8_t ident_len, s32_t *ident);
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void (*get_value_q)(u8_t rid, struct obj_def *od);
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void (*set_test_q)(u8_t rid, struct obj_def *od);
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void (*set_value_q)(u8_t rid, struct obj_def *od, u16_t len, void *value);
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/** async Answers */
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void (*get_object_def_a)(u8_t rid, u8_t ident_len, s32_t *ident, struct obj_def *od);
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void (*get_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
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u8_t (*set_test_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
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void (*set_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
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/** async Panic Close (agent returns error reply,
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e.g. used for external transaction cleanup) */
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void (*get_object_def_pc)(u8_t rid, u8_t ident_len, s32_t *ident);
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void (*get_value_pc)(u8_t rid, struct obj_def *od);
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void (*set_test_pc)(u8_t rid, struct obj_def *od);
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void (*set_value_pc)(u8_t rid, struct obj_def *od);
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};
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/** export MIB tree from mib2.c */
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extern const struct mib_array_node internet;
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/** dummy function pointers for non-leaf MIB nodes from mib2.c */
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void noleafs_get_object_def(u8_t ident_len, s32_t *ident, struct obj_def *od);
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void noleafs_get_value(struct obj_def *od, u16_t len, void *value);
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u8_t noleafs_set_test(struct obj_def *od, u16_t len, void *value);
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void noleafs_set_value(struct obj_def *od, u16_t len, void *value);
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void snmp_oidtoip(s32_t *ident, struct ip_addr *ip);
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void snmp_iptooid(struct ip_addr *ip, s32_t *ident);
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void snmp_ifindextonetif(s32_t ifindex, struct netif **netif);
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void snmp_netiftoifindex(struct netif *netif, s32_t *ifidx);
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struct mib_list_node* snmp_mib_ln_alloc(s32_t id);
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void snmp_mib_ln_free(struct mib_list_node *ln);
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struct mib_list_rootnode* snmp_mib_lrn_alloc(void);
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void snmp_mib_lrn_free(struct mib_list_rootnode *lrn);
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s8_t snmp_mib_node_insert(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **insn);
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s8_t snmp_mib_node_find(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **fn);
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struct mib_list_rootnode *snmp_mib_node_delete(struct mib_list_rootnode *rn, struct mib_list_node *n);
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struct mib_node* snmp_search_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_name_ptr *np);
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struct mib_node* snmp_expand_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
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u8_t snmp_iso_prefix_tst(u8_t ident_len, s32_t *ident);
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u8_t snmp_iso_prefix_expand(u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
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#endif /* LWIP_SNMP */
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#endif
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