ios - IOS 7.0 中 CFStream Socket 发送数据包不完整

Question

我使用 CFStream Socket 向主机发送数据。第一次发送是工作。但是首先，主机接收到的数据总是被分离。例如:

第一次发送:

Sender:  <11223344 55667788>
Recver:  <11223344 55667788> 

还不错

第二次，第三次...

Sender:  <11223344 55667788>
Recver:  <11>
Recver:  <223344 55667788> 

此症状仅出现在 IOS 7.0 中。6.0、5.0...都没有这个症状

enter code here
CFReadStreamRef inputStream;
CFWriteStreamRef outputStream;
CFStreamCreatePairWithSocketToHost(NULL, (__bridge CFStringRef)_owner.ip, _owner.port, &inputStream, &outputStream);
NSDictionary *sslSettings = @{(id)kCFStreamSSLValidatesCertificateChain: (id)kCFBooleanFalse};
CFReadStreamSetProperty(inputStream, kCFStreamPropertySocketSecurityLevel, kCFStreamSocketSecurityLevelTLSv1);
CFReadStreamSetProperty(inputStream, kCFStreamPropertySSLSettings, (__bridge CFTypeRef)(sslSettings));
CFWriteStreamSetProperty(outputStream, kCFStreamPropertySocketSecurityLevel, kCFStreamSocketSecurityLevelTLSv1);
CFWriteStreamSetProperty(outputStream, kCFStreamPropertySSLSettings, (__bridge CFTypeRef)(sslSettings));
_inputStream = (__bridge_transfer NSInputStream *)inputStream;
[_inputStream setDelegate:self];
[_inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];

_outputStream = (__bridge_transfer NSOutputStream *)outputStream;
[_outputStream setDelegate:self];
[_outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];

[_inputStream open];
[_outputStream open];

谢谢

Answer 1

这似乎是减轻 BEAST 攻击的 1/n-1 split 技术。 http://threatpost.com/apple-turns-on-safari-beast-attack-mitigation-by-default-in-os-x-mavericks/102804

您的服务器可能只支持 TLS 1.0。如果您升级您的服务器以支持 TLS 1.2，我相信 iOS 将停止这样做。