[lwip-commits] [SCM] lwIP - A Lightweight TCPIP stack branch, master, updated. master_at_STABLE-2_0_0-699-g84502e5

[Simon Goldschmidt]

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       via  fb9fabb87ccce7bd9d603b237ce3e7c678560ebc (commit)
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- Log -----------------------------------------------------------------
commit 84502e5ae0d4aac26b41c212ef16af48105e136f
Author: Tim Cussins <address@hidden>
Date:   Mon May 29 14:53:47 2017 +0100

    etharp.c: Ensure etharp_query() allocates adequate pbuf if 
copying/consolidating.
    
    etharp_query() queues packets, instead of sending, if a relevant 
arp-request is
    pending.
    
    Code walks the packet (a pbuf chain) to determine whether any pbufs are 
marked
    'volatile': If so, we cannot simply enqueue the packet, and instead 
allocate a
    new pbuf from RAM, copying the original packet, and enqueueing this new 
pbuf.
    
    The bug here is that the allocation refers to the tot_len field of a temp 
pbuf*,
    'p', instead of the head, 'q'.
    
    In the case where the first pbuf of the chain is non-volatile but the 
second pbuf
    *is* volatile, then we'll request an allocation that uses the tot_len field 
of
    the second pbuf. If the first pbuf is non-zero length, the allocated pbuf 
(chain)
    will be too small to allow the copy.
    
    Signed-off-by: goldsimon <address@hidden>

commit fb9fabb87ccce7bd9d603b237ce3e7c678560ebc
Author: Our Air Quality <address@hidden>
Date:   Thu May 25 13:56:52 2017 +1000

    Initialize the tcp listen pcb netif_idx to NETIF_NO_INDEX.
    
    Signed-off-by: goldsimon <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 src/core/ipv4/etharp.c | 2 +-
 src/core/tcp.c         | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)


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