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Recover from failed OCSP download. #96448

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merged 2 commits into from
Jan 10, 2024
Merged

Recover from failed OCSP download. #96448

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783f8a5
Recover from failed OCSP check.
rzikm Jan 3, 2024
aa4f9ed
Add 5s back-off after failed OCSP querry
rzikm Jan 4, 2024
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11 changes: 10 additions & 1 deletion ...ibraries/System.Net.Security/src/System/Net/Security/SslStreamCertificateContext.Linux.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -247,7 +247,6 @@ partial void AddRootCertificate(X509Certificate2? rootCertificate, ref bool tran
_ocspResponse = ret;
_ocspExpiration = expiration;
_nextDownload = nextCheckA < nextCheckB ? nextCheckA : nextCheckB;
_pendingDownload = null;
break;
}
}
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Expand All @@ -256,6 +255,16 @@ partial void AddRootCertificate(X509Certificate2? rootCertificate, ref bool tran
ArrayPool<char>.Shared.Return(rentedChars.Array!);
GC.KeepAlive(TargetCertificate);
GC.KeepAlive(caCert);

_pendingDownload = null;
if (ret == null)
{
// all download attempts failed, don't try again for 5 seconds.
// Note that if server does not send OCSP staples, clients may still
// contact OCSP responders directly.
_nextDownload = DateTimeOffset.UtcNow.AddSeconds(5);
_ocspExpiration = _nextDownload;
}
return ret;
}
}
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