Rust implementation of dtn bundle protocol 7 draft https://tools.ietf.org/html/draft-ietf-dtn-bpbis-13
This library only handles encoding and decoding of bundles, not transmission or other processing of the data.
This is more or less a port of the dtn7 golang implementation: https://github.com/dtn7/dtn7
This code is not production ready!
A simple benchmark is shipped with the library. It (de)serializes Bundles with a primary block, bundle age block and a payload block with the contents (b"ABC"). This benchmark can be used to compare the rust implementation to the golang, python or java implementations.
cargo run --release --example benchmark
Finished release [optimized] target(s) in 0.29s
Running `target/release/examples/benchmark`
Creating 100000 bundles with CRC_NO: 206964 bundles/second
Creating 100000 bundles with CRC_16: 172704 bundles/second
Creating 100000 bundles with CRC_32: 174935 bundles/second
Encoding 100000 bundles with CRC_NO: 356908 bundles/second
Encoding 100000 bundles with CRC_16: 259877 bundles/second
Encoding 100000 bundles with CRC_32: 261549 bundles/second
Loading 100000 bundles with CRC_NO: 598800 bundles/second
Loading 100000 bundles with CRC_16: 500347 bundles/second
Loading 100000 bundles with CRC_32: 497460 bundles/second
These numbers were generated on a MBP 13" 2018 with i5 CPU and 16GB of ram.
For debugging a small helper tool is shipped:
```
$ cargo install bp7
[...]
$ bp7
usage "bp7"
$ bp7 decode 9f8907000182016b6e6f6465332f696e626f7882016b6e6f6465332f696e626f7882016b6e6f6465332f696e626f78821a247966ba001ad693a4004225b686010000014341424342237186080100010042dbccff
[src/main.rs:17] &bndl = Bundle { primary: PrimaryBlock { version: 7, bundlecontrolflags: 0, crctype: 1, destination: Dtn( 1, "node3/inbox" ), source: Dtn( 1, "node3/inbox" ), reportto: Dtn( 1, "node3/inbox" ), creationtimestamp: CreationTimestamp( 611935930, 0 ), lifetime: 3600000000, fragmentationoffset: 0, totaldatalength: 0, crc: [ 37, 182 ] }, canonicals: [ CanonicalBlock { blocktype: 1, blocknumber: 0, blockcontrolflags: 0, crctype: 1, data: Data( [ 65, 66, 67 ] ), crc: [ 35, 113 ] }, CanonicalBlock { blocktype: 8, blocknumber: 1, blockcontrolflags: 0, crctype: 1, data: BundleAge( 0 ), crc: [ 219, 204 ] } ] } ```
The generated hex string can also be directly discplayed as raw cbor on the awesome cbor.me website, e.g. http://cbor.me/?bytes=9f8907000182016b6e6f6465332f696e626f7882016b6e6f6465332f696e626f7882016b6e6f6465332f696e626f78821a247966ba001ad693a4004225b686010000014341424342237186080100010042dbccff