feat(ja4ebpf): add multi-interface TC, LPM_TRIE ignore_src, unit tests, and fix bugs
- Add multi-interface TC attachment (default "any" = all UP interfaces) - Add BPF LPM_TRIE map ignored_src for kernel-side CIDR filtering - Add userspace ignore_src filtering for SSL/accept4 path via net.IPNet.Contains() - Add AcceptCache for fd→SessionKey correlation with TTL and Close() - Add 5 test files covering writer, procutil, dispatcher, accept_cache, and cmd - Fix formatTCPOptions infinite loop on EOL (case 0 break→return) - Fix pseudoOrderToShort panic on empty slice (negative cap) - Fix AcceptCache goroutine leak (add done channel + Close()) - Update config.yml.example with interfaces, listen_ports, ignore_src - Rewrite docs/services/ja4ebpf.md (was massively stale: XDP, RingBuffer, etc.) - Fix stale XDP/RingBuffer references in docs/architecture.md, thesis, tls.go Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@ -1,19 +1,35 @@
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# Configuration de l'agent ja4ebpf
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# Copiez ce fichier en config.yml et adaptez les valeurs.
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# Interface réseau à surveiller (XDP ingress)
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interface: eth0
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# Interfaces réseau à surveiller (TC ingress).
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# "any" = toutes les interfaces UP (sauf loopback).
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# Ou liste explicite : ["eth0", "eth1"]
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interfaces:
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- any
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# Chemin vers libssl pour les uprobes SSL_read/SSL_write
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# Chemin vers libssl pour les uprobes SSL_read/SSL_write/SSL_set_fd
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ssl_lib_path: "/usr/lib64/libssl.so.3"
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# Ports TCP à surveiller (filtrage BPF côté kernel)
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listen_ports:
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- 80
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- 443
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# CIDR/IP sources à ignorer (filtrage BPF LPM_TRIE + filtrage userspace SSL)
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# Le trafic provenant de ces réseaux est ignoré à toutes les couches.
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# ignore_src:
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# - 10.0.0.0/8
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# - 172.16.0.0/12
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# - 192.168.0.0/16
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# - 127.0.0.1
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# Mode debug : dump compteurs BPF + événements consommés toutes les 5s
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# ClickHouse optionnel en mode debug
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debug: false
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# Paramètres de connexion ClickHouse
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clickhouse:
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dsn: "clickhouse://default:@127.0.0.1:9000/ja4_logs"
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dsn: "clickhouse://default:@127.0.0.1:9000/ja4_logs?async_insert=0"
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batch_size: 500
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flush_secs: 1
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@ -25,4 +41,4 @@ correlation:
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# Journalisation
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log:
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level: "info" # debug | info | warn | error
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format: "json" # json | text
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format: "json" # json | text
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