[lwip-devel] [bug #54669] while sending icmp_send_response , the iphdr_src is actual destination and iphdr_dst will become source, so it is swaped

[vinu]

URL:
  <https://savannah.nongnu.org/bugs/?54669>

                 Summary: while sending icmp_send_response , the iphdr_src is
actual destination and iphdr_dst will become source, so it is swaped
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: vineeshvinu
            Submitted on: Mon 17 Sep 2018 05:45:30 AM UTC
                Category: IPv4
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: git head

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Details:

i have checked first ticket - 51593 and it is modified in below commit
60dd5188871eb2589ba000368e5cb0c05d27f89b. In this function icmp_send_response
, iphdr->src is should be the destination address for response and iphdr->dest
will be the source. ip4_route_src parameter may go wrong in this case because
in ip4_route_src the destination will become source and source will become
destination. please check once.




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