Luiz Angelo Daros de Luca 1af6ee6468 dhcp6: implement vendor class support ...

Implement the OT_DHCP6_VENDOR option type to properly handle the
DHCPv6 Vendor Class option (code 16) according to RFC 3315.

Previously, this option was marked as OT_INTERNAL, causing dnsmasq
to fail immediately if configured by name. Bypassing this block by
using the numerical option format (option6:16) caused the payload
to be formatted with an unintended string-length prefix. This broke
compliance because the RFC requires a fixed 4-byte Enterprise ID
at the beginning of the option, followed by data blocks.

This byte misalignment broke features like UEFI HTTP IPv6 Boot

This patch removes the OT_INTERNAL restriction and moves the formatting
logic to the parser phase, correctly assembling the wire-format layout
(4-byte ID + 2-byte chunk length + string) so it can be injected
directly into the network buffer.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>

2026-06-11 15:29:35 +01:00

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Fix some issues with the swedish manual page, some causing lintian warnings

2025-12-05 15:13:54 +00:00

dnsmasq.8

dhcp6: implement vendor class support

2026-06-11 15:29:35 +01:00