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Add RFC 8955/8956 BGP Flow Specification parsing support #233

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Merged
digizeph merged 4 commits into from
Aug 6, 2025
Merged

Add RFC 8955/8956 BGP Flow Specification parsing support #233

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5ba29c3
feat: add RFC 8955/8956 BGP Flow Specification parsing support
digizeph Aug 5, 2025
72c168b
test: add Flow-Spec test coverage for missed code paths
digizeph Aug 5, 2025
b319365
docs: update README.md from lib.rs documentation
digizeph Aug 5, 2025
554d83e
fix clippy issues
digizeph Aug 5, 2025
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9 changes: 9 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -14,6 +14,15 @@ All notable changes to this project will be documented in this file.

### Code improvements

* added BGP Flow-Spec parsing support following RFC 8955 and RFC 8956
* implemented complete Flow-Spec NLRI parsing for IPv4 and IPv6 Flow Specification rules
* added support for all Flow-Spec component types (destination/source prefix, protocol, ports, ICMP, TCP flags, packet length, DSCP, fragment, flow label)
* implemented Flow-Spec operator parsing for numeric and bitmask operations with proper semantics
* added Flow-Spec Extended Communities for Traffic Rate, Traffic Action, Redirect, and Traffic Marking (RFC 8955)
* created structured data model with `FlowSpecNlri`, `FlowSpecComponent`, and operator types
* added support for IPv6-specific components including Flow Label and prefix offset encoding
* includes test coverage with RFC example validation and round-trip encoding/decoding
* maintains backward compatibility with existing NLRI and Extended Community parsing infrastructure
* added BGP Tunnel Encapsulation attribute parsing support following RFC 9012, RFC 5640, and RFC 8365
* implemented complete TLV-based parsing system for BGP Tunnel Encapsulation attribute (type 23)
* added support for all IANA-defined tunnel types (VXLAN, NVGRE, GRE, SR Policy, Geneve, etc.)
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