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dhcpcd: Respect IPV6_PREFERRED_ONLY flag regardless of state #307

Merged
merged 1 commit into from
Apr 2, 2024
Merged

dhcpcd: Respect IPV6_PREFERRED_ONLY flag regardless of state #307

merged 1 commit into from
Apr 2, 2024

Commits on Apr 2, 2024

  1. Respect IPV6_PREFERRED_ONLY flag on DHS_NONE state 

    Current IPv6_PREFERRED_ONLY (option 108) handling code is only effective
when current state is DHS_DISCOVER and DHS_REBOOT. However, when we
receive multiple ACKs upon our REQUEST, the first ACK will trigger the
use_v6only code path and dhcp_drop() us into DHS_NONE state, as a result
the option 108 on the second ACK won't be handled correctly and we'll
bind to the lease instead.

This patch fixes the issue by adding DHS_NONE as a state to respect
option 108 as well.
    @taoyl-g
    taoyl-g committed Apr 2, 2024
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