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netfilter: nft_quota: dump consumed quota

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Add a new attribute NFTA_QUOTA_CONSUMED that displays the amount of
quota that has been already consumed. This allows us to restore the
internal state of the quota object between reboots as well as to monitor
how wasted it is.

This patch changes the logic to account for the consumed bytes, instead
of the bytes that remain to be consumed.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso
2016-11-28 00:05:52 +01:00
parent c97d22e68b
commit 795595f68d
2 changed files with 18 additions and 5 deletions
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2
include/uapi/linux/netfilter/nf_tables.h
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@@ -988,12 +988,14 @@ enum nft_quota_flags {
*
* @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16)
* @NFTA_QUOTA_FLAGS: flags (NLA_U32)
* @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64)
*/
enum nft_quota_attributes {
NFTA_QUOTA_UNSPEC,
NFTA_QUOTA_BYTES,
NFTA_QUOTA_FLAGS,
NFTA_QUOTA_PAD,
NFTA_QUOTA_CONSUMED,
__NFTA_QUOTA_MAX
};
#define NFTA_QUOTA_MAX (__NFTA_QUOTA_MAX - 1)