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+- FEATURE: Add comprehensive metrics for capture and TLS parser monitoring +- Capture metrics: packets_received, packets_sent, packets_dropped (atomic counters) +- Parser metrics: retransmit_count, gap_detected_count, buffer_exceeded_count, segment_exceeded_count +- New GetStats() method on Capture interface for capture statistics +- New GetMetrics() method on Parser interface for parser statistics +- Add DefaultMaxHelloSegments constant (100) to prevent memory leaks from fragmented handshakes +- Add Segments field to ConnectionFlow for per-flow segment tracking +- Increase DefaultMaxTrackedFlows from 50000 to 100000 for high-traffic scenarios +- Improve TCP reassembly: better handling of retransmissions and sequence gaps +- Memory leak prevention: limit segments per flow and buffer size +- Aggressive flow cleanup: clean up JA4_DONE flows when approaching flow limit +- Lock ordering fix: release flow.mu before acquiring p.mu to avoid deadlocks +- Exclude IPv6 link-local addresses (fe80::) from local IP detection +- Improve error logging with detailed connection and TLS extension information +- Add capture diagnostics logging (interface, link_type, local_ips, bpf_filter) +- Fix false positive retransmission counter when SYN packet is missed +- Fix gap handling: reset sequence tracking instead of dropping flow +- Fix extractTLSExtensions: return error details with basic TLS info for debugging
58 lines
1.8 KiB
Plaintext
58 lines
1.8 KiB
Plaintext
# Sample configuration file for ja4sentinel
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# Copy to config.yml and adjust as needed
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core:
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# Network interface to capture traffic from
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# "any" captures on all interfaces (default, recommended)
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# Or specify a specific interface (e.g., eth0, ens192, etc.)
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interface: any
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# TCP ports to monitor for TLS handshakes
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listen_ports:
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- 443
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- 8443
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# Optional BPF filter (leave empty for auto-generated filter based on listen_ports and local_ips)
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bpf_filter: ""
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# Local IP addresses to monitor (traffic destined to these IPs will be captured)
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# Leave empty for auto-detection (recommended) - excludes loopback addresses
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# Or specify manually: ["192.168.1.10", "10.0.0.5", "2001:db8::1"]
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local_ips: []
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# Source IP addresses or CIDR ranges to exclude from capture
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# Useful for filtering out internal traffic, health checks, or monitoring systems
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# Examples: ["10.0.0.0/8", "192.168.1.1", "172.16.0.0/12"]
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exclude_source_ips: []
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# Timeout in seconds for TLS handshake extraction (default: 30)
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flow_timeout_sec: 30
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# Buffer size for packet channel (default: 1000, increase for high-traffic environments)
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packet_buffer_size: 1000
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# Log level: debug, info, warn, error (default: info)
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# Can be overridden by JA4SENTINEL_LOG_LEVEL environment variable
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log_level: info
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outputs:
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# Output to UNIX socket (for systemd/journald or other consumers)
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# Only JSON LogRecord data is sent - no diagnostic logs
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- type: unix_socket
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enabled: true
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params:
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socket_path: /var/run/logcorrelator/network.socket
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# Output to stdout (JSON lines)
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# Diagnostic logs (error, debug, warning) should go here
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# - type: stdout
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# enabled: false
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# params: {}
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# Output to file
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# Only JSON LogRecord data is sent - no diagnostic logs
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# - type: file
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# enabled: false
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# params:
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# path: /var/log/ja4sentinel/ja4.log
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