lwIP - A Lightweight TCP/IP stack - Bugs: bug #57018, lwip_select and lwip_connect can...
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bug #57018: lwip_select and lwip_connect can not detect "refuse connection request packet"
Submitter: | Hunkar Ciplak <chunkar> | ||
Submitted: | Mon 07 Oct 2019 10:01:55 PM UTC | ||
Category: | TCP | Severity: | 3 - Normal |
Item Group: | Faulty Behaviour | Status: | None |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Open | Planned Release: | None |
lwIP version: | 2.1.1 |
Tue 08 Oct 2019 07:58:18 PM UTC, comment #2: |
Hunkar Ciplak <chunkar> |
Tue 08 Oct 2019 07:42:44 PM UTC, comment #1: Is this a duplicate to bug #56964 you sent about a week ago? If not, what's the difference? |
Simon Goldschmidt <goldsimon> |
Mon 07 Oct 2019 10:01:55 PM UTC, original submission:
I came across an issue while trying to connect to remote TCP server by using non-blocking socket.After sending the connection request by lwip_connect i am checking the "writability of the socket by lwip_select and also i am checking the errno.
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Hunkar Ciplak <chunkar> |
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Corresponding source code
Hi Simon,
Actually this is the original one but i couldnt delete the previous one (56964).
As to the meaning of "refuse packet", yes ıt ıs not clear you are rıght: I mean "Reset", in another words [R.] flagged packet in tcpdump. It means, server will not be establishing your connection request, so server refuses your connection request.