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[lwip-devel] [bug #53559] IPv4 to IPv6 filtering not freeing PBUFs
From: |
JD Scott |
Subject: |
[lwip-devel] [bug #53559] IPv4 to IPv6 filtering not freeing PBUFs |
Date: |
Wed, 4 Apr 2018 14:31:46 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36 |
URL:
<http://savannah.nongnu.org/bugs/?53559>
Summary: IPv4 to IPv6 filtering not freeing PBUFs
Project: lwIP - A Lightweight TCP/IP stack
Submitted by: jdscott
Submitted on: Wed 04 Apr 2018 06:31:44 PM UTC
Category: IPv6
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: 2.0.2
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Details:
I ran a suite of IPv6 tests using a Maxwell Pro Network Emulator and found
that tests related to filtering IPv4 to IPv6 mapped addresses were passing,
but the PBUF pool was being starved. After digging into it I noticed PBUFs
aren't being freed when this filtering is preformed.
The filtering in question is done in 'src/core/ipv6/ip6.c', starting at line
452.
I've added a call to 'pbuf_free(p)' in my local code and found that the stack
no longer starves.
I also found this error to be in version 2.0.3 of lwIP.
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/bugs/?53559>
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- [lwip-devel] [bug #53559] IPv4 to IPv6 filtering not freeing PBUFs,
JD Scott <=