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add-radius-vendor

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Add or extend vendor VSA parsing and response enhancement (TR-F005). Use when ToughRADIUS must recognize a vendor's request VSAs, or emit that vendor's proprietary attributes in Access-Accept.

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Skill: Add Vendor VSA Parsing / Response Enhancement

Feature ID: TR-F005 | Milestone: M5

When to use

When ToughRADIUS must recognize a vendor's request VSAs, or emit that vendor's specific attributes in Access-Accept.

Pre-research (read before writing)

grep_search "VendorCode" --include internal/radiusd/**
file_search "internal/radiusd/plugins/vendorparsers/parsers/*_parser.go"
file_search "internal/radiusd/plugins/auth/enhancers/*_enhancer.go"
view internal/radiusd/plugins/vendorparsers/parsers/init.go      # registration point
view internal/radiusd/vendors/<existing-vendor>/                 # dictionary & constants

Key insight: a dictionary != a parser. A dictionary only describes attributes; without a parser they are never extracted.

Implementation steps

  1. Constants / dictionary: define the VendorCode and VSA constants under internal/radiusd/vendors/<vendor>/ (reference huawei). If the vendors package lacks the Code<Vendor> constant, add it first.
  2. Parser: implement the parser at internal/radiusd/plugins/vendorparsers/parsers/<vendor>_parser.go, mirroring huawei_parser.go's interface and field extraction.
  3. Register the parser: in parsers/init.go's init(), call vendors.Register(&vendors.VendorInfo{Code: vendors.Code<Vendor>, ...Parser: &<Vendor>Parser{}}).
  4. Enhancer (if emitting response attributes): implement internal/radiusd/plugins/auth/enhancers/<vendor>_enhancer.go, mirroring huawei_enhancer.go (rate, VLAN, etc.).
  5. Sample-based tests: add <vendor>_parser_test.go / <vendor>_enhancer_test.go covering parsing and emission with real attribute samples.

Conventions

  • Vendor bandwidth-unit differences and binary-vs-decimal conversions must carry inline comments explaining the "why".
  • Rate / VLAN / MAC-binding behavior must be semantically consistent with existing vendors.

Acceptance

  • go test ./internal/radiusd/... passes
  • golangci-lint run reports no new issues
  • Both new vendor parsing and response have sample test coverage
  • PR references TR-F005 and the milestone ID