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Tunnels: Periodically use 5-slot TBMs

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to provide cover for 4-hop tunnels
This commit is contained in:
zzz
2026-08-03 18:13:15 -04:00
parent ff5c4d8833
commit 92e9d2d657
1 changed files with 6 additions and 5 deletions
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router/java/src/net/i2p/router/tunnel/pool/BuildRequestor.java
+6 -5
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@@ -445,12 +445,14 @@ abstract class BuildRequestor {
// populate and encrypt the message
TunnelBuildMessage msg;
List<Integer> order;
int clen = cfg.getLength();
if (useShortTBM) {
int len;
if (cfg.getLength() <= SHORT_RECORDS) {
// periodically send 5-slot message instead
if (clen <= SHORT_RECORDS && ctx.random().nextInt(16) != 0) {
len = SHORT_RECORDS;
order = new ArrayList<Integer>(SHORT_ORDER);
} else if (cfg.getLength() <= MEDIUM_RECORDS) {
} else if (clen <= MEDIUM_RECORDS) {
len = MEDIUM_RECORDS;
order = new ArrayList<Integer>(MEDIUM_ORDER);
} else {
@@ -459,7 +461,7 @@ abstract class BuildRequestor {
}
msg = new ShortTunnelBuildMessage(ctx, len);
} else if (useVariable) {
if (cfg.getLength() <= SHORT_RECORDS) {
if (clen <= SHORT_RECORDS) {
msg = new VariableTunnelBuildMessage(ctx, SHORT_RECORDS);
order = new ArrayList<Integer>(SHORT_ORDER);
} else {
@@ -472,8 +474,7 @@ abstract class BuildRequestor {
}
if (!useShortTBM) {
int len = cfg.getLength();
for (int i = 0; i < len; i++) {
for (int i = 0; i < clen; i++) {
HopConfig hop = cfg.getConfig(i);
// set IV/Layer keys (formerly in TunnelPool.configureNewTunnel())
hop.setIVKey(ctx.keyGenerator().generateSessionKey());