[lwip-devel] [task #7487] ICMP: associate incoming error messages with active pcbs

[Simon Goldschmidt]

URL:
  <http://savannah.nongnu.org/task/?7487>

                 Summary: ICMP: associate incoming error messages with active
pcbs
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Mittwoch 21.11.2007 um 19:02
                Category: None
         Should Start On: Mittwoch 21.11.2007 um 00:00
   Should be Finished on: Mittwoch 21.11.2007 um 00:00
                Priority: 3 - Low
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
                  Effort: 0.00

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Details:

This is only an idea, maybe a lightweight stack doesn't really need it:

- destination unreachable and time exceeded messages could wake up a thread
using select on a socket to wait for an error (see bug #20155 'select() with
errorfd set')
- a kind of path MTU discovery could be implemented by lowering mss of tcp
pcbs (when receiving destination unreachable, fragmentation needed, DF set)

anything more?




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