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Fix IPv6 local link address resolve issue with LWIP latest version #12396
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andy31415
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praveenCY:topic/pucn_update_lwipnodesupport
Dec 1, 2021
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Fix IPv6 local link address resolve issue with LWIP latest version #12396
andy31415
merged 1 commit into
project-chip:master
from
praveenCY:topic/pucn_update_lwipnodesupport
Dec 1, 2021
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@andy31415 @tcarmelveilleux @kpschoedel : please review |
PR #12396: Size comparison from 02bd2c7 to 51fd28c Increases (4 builds for efr32, p6)
Full report (38 builds for efr32, esp32, k32w, linux, mbed, nrfconnect, p6, qpg, telink)
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andy31415
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Problem
IPv6 Local link address resolve is failing with LWIP version tag 2.1.2 and above.
Reason:
Sigma2 UDP Packet is dropped in nd6_send_ns function as it is comparing zones for these addresses (ip6_addr_netcmp_zone).
IPv6 address is not initialized properly in IPAddress.cpp resulting in random values populated in zone variable.
Change overview
Testing
Verify Commissioning with P6 using CHIPTOOL
P6-LOCK_APP_CHIPTOOL_LOG.txt
#11998