cisagov/icsnpp-c1222
Dec 2024 – Jun 2025
7 Months active
Languages Used
C++SpicyZeekCMakeMarkdownPythonShell
Technical Skills
Data ParsingEvent HandlingLog Framework DevelopmentNetwork Protocol AnalysisNetwork SecurityProtocol Analysis
WalmartDeli
PROFILE
Walmartdeli
Payton Harmon developed and maintained the cisagov/icsnpp-c1222 repository, delivering a robust C12.22 protocol analysis and logging system for Zeek. Over seven months, Payton incrementally built out core protocol parsing, modular logging, and comprehensive test suites, focusing on maintainability and observability. Using Zeek scripting, Python, and CMake, Payton refactored code for clarity, introduced configurable logging levels, and expanded test coverage to include IPv6 and diverse service baselines. The work included packet generation with Scapy, enhanced error handling, and detailed documentation, resulting in a maintainable analyzer that supports faster incident response, reliable deployments, and improved auditability for network security operations.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
56Total
Bugs
4
Commits
56
Features
12
Lines of code
6,169
Activity Months7
Your Network
4 peopleShared Repositories
4
Work History
June 2025
10 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for cisagov/icsnpp-c1222: Delivered substantial enhancements to the C12.22 Analyzer Test Suite, expanding IPv6 data coverage, stabilizing Btest workflows, and broadening service baselines. The work strengthens validation of the analyzer, improves test reliability, and increases confidence in deployments. Key deliverables include IPv6 test data integration, new Btest scripts for the c1222 analyzer, expanded baselines across services, and updated test execution guidance and documentation. This aligns with CI readiness and reduces risk by surfacing issues earlier in the development cycle.
10 Commits • 1 Features
Jun 1, 2025June 2025 performance summary for cisagov/icsnpp-c1222: Delivered substantial enhancements to the C12.22 Analyzer Test Suite, expanding IPv6 data coverage, stabilizing Btest workflows, and broadening service baselines. The work strengthens validation of the analyzer, improves test reliability, and increases confidence in deployments. Key deliverables include IPv6 test data integration, new Btest scripts for the c1222 analyzer, expanded baselines across services, and updated test execution guidance and documentation. This aligns with CI readiness and reduces risk by surfacing issues earlier in the development cycle.
June 2025
May 2025
13 Commits • 3 Features
May 1, 2025Concise monthly summary for cisagov/icsnpp-c1222 focusing on delivering reliable read/write service improvements, expanded testing capabilities, and observability enhancements that drive business value and safer deployments.
May 2025
13 Commits • 3 Features
May 1, 2025Concise monthly summary for cisagov/icsnpp-c1222 focusing on delivering reliable read/write service improvements, expanded testing capabilities, and observability enhancements that drive business value and safer deployments.
April 2025
3 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for cisagov/icsnpp-c1222: Delivered a configurable C1222 Logging System across the codebase, refactored logging to enable modular configuration, and updated documentation to improve usability and maintainability. This work establishes a foundation for user-adjustable logging levels and enhanced observability during network traffic analysis, aligning with security operations goals and product quality.
3 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for cisagov/icsnpp-c1222: Delivered a configurable C1222 Logging System across the codebase, refactored logging to enable modular configuration, and updated documentation to improve usability and maintainability. This work establishes a foundation for user-adjustable logging levels and enhanced observability during network traffic analysis, aligning with security operations goals and product quality.
April 2025
March 2025
9 Commits • 1 Features
Mar 1, 2025March 2025 – cisagov/icsnpp-c1222: Delivered a consolidated C12.22 Zeek plugin with enhanced parsing and observability. Highlights include improved ANSI C12.22 field parsing over TCP/UDP, expanded logging coverage (resolve, security, logon, trace, service logs), and comprehensive documentation updates (config, ports, log file locations, and field descriptions). Refactors were applied to produce clearer, more consistent data capture, and security/logon logs were merged to streamline workflows. These changes were implemented via incremental commits, improving reliability and maintainability. Business value: deeper visibility into C12.22 activity, faster detection and troubleshooting, better auditability, and a solid foundation for downstream analytics and automation.
March 2025
9 Commits • 1 Features
Mar 1, 2025March 2025 – cisagov/icsnpp-c1222: Delivered a consolidated C12.22 Zeek plugin with enhanced parsing and observability. Highlights include improved ANSI C12.22 field parsing over TCP/UDP, expanded logging coverage (resolve, security, logon, trace, service logs), and comprehensive documentation updates (config, ports, log file locations, and field descriptions). Refactors were applied to produce clearer, more consistent data capture, and security/logon logs were merged to streamline workflows. These changes were implemented via incremental commits, improving reliability and maintainability. Business value: deeper visibility into C12.22 activity, faster detection and troubleshooting, better auditability, and a solid foundation for downstream analytics and automation.
February 2025
9 Commits • 2 Features
Feb 1, 2025February 2025 - Delivered two core features for cisagov/icsnpp-c1222: Analyzer Build and Dependency Cleanup and C1222 Protocol Logging and Error Handling Enhancements. These changes improved build reliability, observability, and code maintainability, enabling faster iteration and safer releases.
9 Commits • 2 Features
Feb 1, 2025February 2025 - Delivered two core features for cisagov/icsnpp-c1222: Analyzer Build and Dependency Cleanup and C1222 Protocol Logging and Error Handling Enhancements. These changes improved build reliability, observability, and code maintainability, enabling faster iteration and safer releases.
February 2025
January 2025
6 Commits • 1 Features
Jan 1, 2025January 2025: Implemented comprehensive C1222 protocol enhancements in cisagov/icsnpp-c1222, focusing on improved observability, error handling, and protocol processing. Key changes include authentication logging, indirect_reference flag support, centralized end-of-packet log emission, and Identification Service logging, along with formatting and minor fixes to solidify code quality and maintainability.
January 2025
6 Commits • 1 Features
Jan 1, 2025January 2025: Implemented comprehensive C1222 protocol enhancements in cisagov/icsnpp-c1222, focusing on improved observability, error handling, and protocol processing. Key changes include authentication logging, indirect_reference flag support, centralized end-of-packet log emission, and Identification Service logging, along with formatting and minor fixes to solidify code quality and maintainability.
December 2024
6 Commits • 1 Features
Dec 1, 2024December 2024 — cisagov/icsnpp-c1222: C12.22 Protocol Analysis Enhancements and Bug Fixes. Key features delivered: - Core C12.22 protocol parser setup with OID extraction standardization; added parsing for Calling AE Qualifier and Mechanism Name. - Enhanced summary logging and authentication-value logging framework to improve traceability and security. Major bugs fixed: - ResponseNok handling bug: corrected initialization of actualLength and improved export organization in c1222.evt, increasing stability and data clarity. Overall impact and accomplishments: - Increased reliability and completeness of C12.22 protocol analysis, enabling faster, more accurate incident assessment and auditing through standardized data exports. - Clearer event exports and logs support regulatory/compliance reviews and reduce time to resolution for relevant incidents. - Demonstrated progressive, commit-driven development with a series of focused improvements that build toward a robust, maintainable parser and analytics pipeline. Technologies/skills demonstrated: - Protocol parsing design and incremental feature delivery - Advanced logging (summary and authentication-value) for observability and security - OID extraction standardization and data parsing enhancements - Structured data export improvements and maintainable code organization - Git-based collaboration and iterative development
6 Commits • 1 Features
Dec 1, 2024December 2024 — cisagov/icsnpp-c1222: C12.22 Protocol Analysis Enhancements and Bug Fixes. Key features delivered: - Core C12.22 protocol parser setup with OID extraction standardization; added parsing for Calling AE Qualifier and Mechanism Name. - Enhanced summary logging and authentication-value logging framework to improve traceability and security. Major bugs fixed: - ResponseNok handling bug: corrected initialization of actualLength and improved export organization in c1222.evt, increasing stability and data clarity. Overall impact and accomplishments: - Increased reliability and completeness of C12.22 protocol analysis, enabling faster, more accurate incident assessment and auditing through standardized data exports. - Clearer event exports and logs support regulatory/compliance reviews and reduce time to resolution for relevant incidents. - Demonstrated progressive, commit-driven development with a series of focused improvements that build toward a robust, maintainable parser and analytics pipeline. Technologies/skills demonstrated: - Protocol parsing design and incremental feature delivery - Advanced logging (summary and authentication-value) for observability and security - OID extraction standardization and data parsing enhancements - Structured data export improvements and maintainable code organization - Git-based collaboration and iterative development
December 2024
Activity
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Quality Metrics
Correctness87.6%
Maintainability88.2%
Architecture85.4%
Performance80.8%
AI Usage20.4%
Skills & Technologies
Programming Languages
C++CMakeMarkdownPythonShellSpicyZeek
Technical Skills
Baseline ManagementBuild System ConfigurationBuild SystemsCode RefactoringConfiguration ManagementData ModelingData ParsingDebuggingDocumentationEmbedded SystemsEvent HandlingLog AnalysisLog Framework DevelopmentLog ManagementLog Processing
Repositories Contributed To
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