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feat(core): packet capture per card after Java's Lauscher, measured card by card

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The engine keeps Java's packet capture (capture.ts): per network card
every frame it sent (when it leaves on the cable) or received (also one
for another card), once, with time and number; switches log nothing;
frames the packet loss dropped are kept apart; the capture outlives a
stop and a new start, as in Java, until clearCapture. Per port instead
of per MAC, at most 10,000 frames a card.

expectSameCaptures compares each card's capture with Java's list of that
card in the ARP, WLAN, DNS, TCP, NAT, RIP and single-client DHCP runs.
It found that ScenarioNetwork ignored a switch's learning time (Java ran
300 s, the core the scenarios' 5 s); the oracle sets it now, and the TCP
and DHCP runs are recorded again. A core test found that a new start
numbers frames from 1 again and the capture took them as seen.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
julian.kiedaisch
2026-10-01 08:53:37 +00:00
co-authored by Claude Opus 5.5
parent 65ccd9ddd7
commit 088b62469f
24 changed files with 796 additions and 344 deletions
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tools/java-oracle/src/ScenarioNetwork.java
+7 -3
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@@ -144,10 +144,14 @@ public class ScenarioNetwork {
cable.setAnschluesse(new Port[] { ports.get(link.get("sourcePort")), ports.get(link.get("targetPort")) });
cable.setWireless(Boolean.TRUE.equals(link.get("wireless")));
}
// A switch's SSID, a host's wireless card and the SSID it joins: what the
// editor reads to lay a wireless cable; the simulation does not ask.
// A switch's SSID and learning time; a host's wireless card and the SSID
// it joins. The SSIDs only the editor reads, to lay a wireless cable.
for (Map.Entry<String, Object> entry : map(scenario.getOrDefault("switches", new HashMap<>())).entrySet()) {
((SwitchFirmware) nodes.get(entry.getKey()).getSystemSoftware()).setSSID((String) map(entry.getValue()).get("ssid"));
Map<String, Object> config = map(entry.getValue());
SwitchFirmware firmware = (SwitchFirmware) nodes.get(entry.getKey()).getSystemSoftware();
firmware.setSSID((String) config.get("ssid"));
// How long the switch keeps a learned MAC address (Java's default 300 s).
if (config.containsKey("retention")) firmware.setRetentionTime(((Number) config.get("retention")).longValue());
}
for (Map.Entry<String, Object> entry : map(scenario.getOrDefault("wireless", new HashMap<>())).entrySet()) {
Betriebssystem os = (Betriebssystem) system(nodes.get(entry.getKey()));