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298431c68f
ud3tn is available under multiple licenses and we want to reflect this in our source code. But which license information should appear first and how can we manage this efficiently in the future? The Linux Kernel uses SPDX expressions instead of boilerplate sections. This seems to be a great approach, so we do the same here. Signed-off-by: Georg Alexander Murzik <georg.murzik@d3tn.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR Apache-2.0
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#ifndef BUNDLE7_HOPCOUNT_H_INCLUDED
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#define BUNDLE7_HOPCOUNT_H_INCLUDED
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#include "ud3tn/bundle.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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/**
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* Parses the given CBOR-encoded data into a Hop Count structure.
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* This function can be used to parse the payload of an Hop Count
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* bundle extension block.
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*
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* @param buffer CBOR-encoded data
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* @param length CBOR data length
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*/
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bool bundle7_hop_count_parse(struct bundle_hop_count *hop_count,
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const uint8_t *buffer, size_t length);
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/**
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* Maximal length of a CBOR-encoded Hop Count
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*
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* It is calculated as follows:
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*
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* - 1 Byte CBOR array header
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* - 3 Bytes uint16_t limit
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* - 3 Bytes uint16_t count
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*/
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#define BUNDLE7_HOP_COUNT_MAX_ENCODED_SIZE 7
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/**
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* Generates the CBOR-encoded version of the given Hop Count and writes it
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* into the passed buffer. The buffer must be at least be
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* BUNDLE7_HOP_COUNT_MAX_ENCODED_SIZE bytes long
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*
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* @param bundle_hop_count
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* @param buffer Output buffer
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* @param length Buffer length
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* @return Number of bytes written into buffer
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*/
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size_t bundle7_hop_count_serialize(const struct bundle_hop_count *hop_count,
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uint8_t *buffer, size_t length);
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#endif // BUNDLE7_HOPCOUNT_H_INCLUDED
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