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sys/shell/commands/gnrc_icmpv6_echo: test for ICMPv6 reply corruption #15622

Merged
merged 2 commits into from Aug 11, 2021
Merged

sys/shell/commands/gnrc_icmpv6_echo: test for ICMPv6 reply corruption #15622

merged 2 commits into from Aug 11, 2021

Commits on Aug 11, 2021

  1. shell/gnrc_icmpv6_echo: test for ICMPv6 echo reply corruption 

    The Linux ping utility has the nice feature that fills the ICMPv6 echo
request payload with a pattern `payload_index & 0xFF`.
Then the ICMPv6 echo response payload is checked to verify that the pattern
is still intact.

This way corrupted messages can be detected.
In the past that revealed some 6lo-fragmentation bugs in Linux when
corrupted replies arrived.

This feature is also useful for RIOT, so implement it in RIOTs `ping`
command.
    @benpicco
    benpicco committed Aug 11, 2021
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  2. riotctrl_shell.gnrc: add parser for reply corruption & truncation

    @benpicco
    benpicco committed Aug 11, 2021
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