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pknock: disallow running peer_gc too early

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It is no longer possible to specify gc_expir_time with a time lower
than its default value (65000 msecs). This is to avoid running
peer_gc() earlier than 1 minute [well, 65 s actually] in the future,
which would otherwise render anti-spoof protection in SPA mode
non-functional.
This commit is contained in:
Jan Rafaj
2009-09-01 19:52:48 +02:00
committed by Jan Engelhardt
parent 1bc7f1be67
commit e0276b4875
2 changed files with 4 additions and 0 deletions
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2
extensions/xt_pknock.c
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@@ -1104,6 +1104,8 @@ static struct xt_match xt_pknock_mt_reg __read_mostly = {
static int __init xt_pknock_mt_init(void)
{
if (gc_expir_time < DEFAULT_GC_EXPIRATION_TIME)
gc_expir_time = DEFAULT_GC_EXPIRATION_TIME;
#ifdef PK_CRYPTO
if (request_module(crypto.algo) < 0) {
printk(KERN_ERR PKNOCK "request_module('%s') error.\n",