[bug #46187] grub_net_tcp_accept always sends SYN-ACK packets to all-zero mac

[Ignat Korchagin]

URL:
  <http://savannah.gnu.org/bugs/?46187>

                 Summary: grub_net_tcp_accept always sends SYN-ACK packets to
all-zero mac
                 Project: GNU GRUB
            Submitted by: ignat
            Submitted on: Mon 12 Oct 2015 15:40:39 GMT
                Category: Network
                Severity: Major
                Priority: 5 - Normal
              Item Group: Software Error
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Ignat Korchagin
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Git master
         Reproducibility: Every Time
         Planned Release: None

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Details:

When using GRUB TCP in "server mode" there is no code to actually initialize
remote mac address for the socket structure. This ends up GRUB sending SYN-ACK
packets on all-zero mac in the socket structure and connection never gets
accepted, since remote party never receives the SYN-ACK.
Since GRUB TCP client resolves remote link address on open, similar code was
added to grub_net_tcp_accept.



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File Attachments:


-------------------------------------------------------
Date: Mon 12 Oct 2015 15:40:39 GMT  Name: grub2.patch  Size: 810B   By: ignat

<http://savannah.gnu.org/bugs/download.php?file_id=35169>

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