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SSU2: Shorten token expiration based on cache size

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zzz
2022-07-19 11:55:59 -04:00
parent 02cd83187b
commit 5355ee7740
1 changed files with 8 additions and 4 deletions
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12
router/java/src/net/i2p/router/transport/udp/EstablishmentManager.java
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@@ -168,7 +168,7 @@ class EstablishmentManager {
// SSU 2
private static final int MAX_TOKENS = 512;
public static final long IB_TOKEN_EXPIRATION = 60*60*1000L;
public static final long IB_TOKEN_EXPIRATION = 2*60*60*1000L;
private static final long MAX_SKEW = 2*60*1000;
private static final String TOKEN_FILE = "ssu2tokens.txt";
@@ -2553,10 +2553,14 @@ class EstablishmentManager {
do {
token = _context.random().nextLong();
} while (token == 0);
// TODO shorten expiration based on _inboundTokens size
long expires = _context.clock().now() + expiration;
Token tok = new Token(token, expires);
long now = _context.clock().now();
Token tok;
synchronized(_inboundTokens) {
// shorten expiration based on _inboundTokens size
if (expiration > 2*60*1000 && _inboundTokens.size() > MAX_TOKENS / 2)
expiration /= 2;
long expires = now + expiration;
tok = new Token(token, expires);
_inboundTokens.put(peer, tok);
}
return tok;