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9b21f6a909
Add the ability to set/clear labels assigned to a conntrack via ctnetlink. To allow userspace to only alter specific bits, Pablo suggested to add a new CTA_LABELS_MASK attribute: The new set of active labels is then determined via active = (active & ~mask) ^ changeset i.e., the mask selects those bits in the existing set that should be changed. This follows the same method already used by MARK and CONNMARK targets. Omitting CTA_LABELS_MASK is the same as setting all bits in CTA_LABELS_MASK to 1: The existing set is replaced by the one from userspace. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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