80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
#ifndef ETHERLIB_CBD_TABLE_H
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#define ETHERLIB_CBD_TABLE_H
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#include <stdint.h>
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#include "connection_block.h"
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#define CBD_LOWEST_DESCRIPTOR (4)
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/**
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* Custom type for connection block descriptor.
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*/
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typedef uint8_t cbd;
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#define CBDT_ERR ((cbd)(~0))
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/**
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* Connection block descriptor table
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*/
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typedef struct {
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cbd maxEntries; ///< Maximum number of entries
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cbd level; ///< Fill level
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ConnBlock cbs[]; ///< Array of connection blocks
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} CbdTable;
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/**
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* Create new connecion block table.
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* @param size number of maximum entries
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* @return pointer to newly created connection block descriptor table
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*/
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CbdTable * cbdt_new(uint8_t size);
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/**
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* Allocate new connection block
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* @param cbdt pointer to CBDT
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* @return connection block descriptor OR CBDT_ERR
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*/
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cbd cbdt_alloc_new(CbdTable * cbdt, const ConnBlock * connBlock);
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/**
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* Release connection block.
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* @param cbdt pointer to CBDT
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* @param d CBD value
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*/
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void cbdt_release(CbdTable * cbdt, cbd d);
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/**
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* Get connection block
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* @param cbdt pointer to CBDT
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* @param d CBD value
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* @param connBlock pointer to connection block where the results will be written
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* @return indicates that fetch was successful or not
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*/
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bool cbdt_get_connection_block(CbdTable * cbdt, cbd d, ConnBlock * connBlock);
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/**
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* Set connection block sieve tag.
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* @param cbdt pointer to CBDT
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* @param d CBD value
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* @param tag tag getting stored
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* @return operation successful (d was valid)
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*/
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bool cbdt_set_tag(CbdTable * cbdt, cbd d, PcktSieveLayerTag tag);
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/**
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* Retrieve connection block sieve tag.
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* @param cbdt pointer to CBDT
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* @param d CBD value
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* @param tag pointer to area where tag is written
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* @return operation successful (d was valid)
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*/
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bool cbdt_get_tag(CbdTable * cbdt, cbd d, PcktSieveLayerTag * tag);
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/**
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* Print report on connection block descriptors.
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* @param cbdt pointer to CBD table
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*/
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void cbdt_report(const CbdTable * cbdt);
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#endif //ETHERLIB_CBD_TABLE_H
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