batman-adv: fix wrong dhcp option list browsing
In is_type_dhcprequest(), while parsing a DHCP message, if the entry we found in the option list is neither a padding nor the dhcp-type, we have to ignore it and jump as many bytes as its length + 1. The "+ 1" byte is given by the subtype field itself that has to be jumped too. Reported-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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