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[udp] return error on source port mismatch in Udp::SendTo() (#3698)

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This commit is contained in:
Jonathan Hui
2019-03-20 03:18:51 -07:00
committed by GitHub
parent b6ef4988f3
commit 4f734fa24f
1 changed files with 4 additions and 0 deletions
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src/core/net/udp6.cpp
+4
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@@ -159,6 +159,9 @@ otError UdpSocket::SendTo(Message &aMessage, const MessageInfo &aMessageInfo)
otError error = OT_ERROR_NONE;
MessageInfo messageInfoLocal;
VerifyOrExit((aMessageInfo.GetSockPort() == 0) || (GetSockName().mPort == aMessageInfo.GetSockPort()),
error = OT_ERROR_INVALID_ARGS);
messageInfoLocal = aMessageInfo;
if (messageInfoLocal.GetPeerAddr().IsUnspecified())
@@ -183,6 +186,7 @@ otError UdpSocket::SendTo(Message &aMessage, const MessageInfo &aMessageInfo)
{
SuccessOrExit(error = Bind(GetSockName()));
}
messageInfoLocal.SetSockPort(GetSockName().mPort);
#if OPENTHREAD_ENABLE_PLATFORM_UDP