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Luiz Angelo Daros de Luca
1af6ee6468
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>