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[dtls] fix DTLS connection issues (#8168)

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This commit fixes two DTLS session issues on Posix:
- Fix the issue that UDP connect would cause the kernel socket to bind
  to an address that might be different from the address used by the
  Commissioner.
- Set the socket address to avoid kernel selecting an incorrect source
  address.
This commit is contained in:
Simon Lin
2022-09-15 20:55:01 -07:00
committed by GitHub
parent b5ea9c8106
commit 0756d1ea8f
1 changed files with 1 additions and 7 deletions
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src/core/meshcop/dtls.cpp
+1 -7
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@@ -184,17 +184,11 @@ void Dtls::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageI
ExitNow(); ExitNow();
case Dtls::kStateOpen: case Dtls::kStateOpen:
IgnoreError(mSocket.Connect(Ip6::SockAddr(aMessageInfo.GetPeerAddr(), aMessageInfo.GetPeerPort())));
mMessageInfo.SetPeerAddr(aMessageInfo.GetPeerAddr()); mMessageInfo.SetPeerAddr(aMessageInfo.GetPeerAddr());
mMessageInfo.SetPeerPort(aMessageInfo.GetPeerPort()); mMessageInfo.SetPeerPort(aMessageInfo.GetPeerPort());
mMessageInfo.SetIsHostInterface(aMessageInfo.IsHostInterface()); mMessageInfo.SetIsHostInterface(aMessageInfo.IsHostInterface());
if (Get<ThreadNetif>().HasUnicastAddress(aMessageInfo.GetSockAddr())) mMessageInfo.SetSockAddr(aMessageInfo.GetSockAddr());
{
mMessageInfo.SetSockAddr(aMessageInfo.GetSockAddr());
}
mMessageInfo.SetSockPort(aMessageInfo.GetSockPort()); mMessageInfo.SetSockPort(aMessageInfo.GetSockPort());
SuccessOrExit(Setup(false)); SuccessOrExit(Setup(false));