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netfilter: nfnetlink_acct: Adding quota support to accounting framework

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nfacct objects already support accounting at the byte and packet
level.  As such it is a natural extension to add the possiblity to
define a ceiling limit for both metrics.

All the support for quotas itself is added to nfnetlink acctounting
framework to stay coherent with current accounting object management.
Quota limit checks are implemented in xt_nfacct filter where
statistic collection is already done.

Pablo Neira Ayuso has also contributed to this feature.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Mathieu Poirier
2014-04-20 18:57:36 -06:00
committed by Pablo Neira Ayuso
parent 1404c3ab98
commit 683399eddb
5 changed files with 107 additions and 2 deletions
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2
include/uapi/linux/netfilter/nfnetlink.h
View File

@@ -20,6 +20,8 @@ enum nfnetlink_groups {
#define NFNLGRP_CONNTRACK_EXP_DESTROY NFNLGRP_CONNTRACK_EXP_DESTROY
NFNLGRP_NFTABLES,
#define NFNLGRP_NFTABLES NFNLGRP_NFTABLES
NFNLGRP_ACCT_QUOTA,
#define NFNLGRP_ACCT_QUOTA NFNLGRP_ACCT_QUOTA
__NFNLGRP_MAX,
};
#define NFNLGRP_MAX (__NFNLGRP_MAX - 1)

9
include/uapi/linux/netfilter/nfnetlink_acct.h
View File

@@ -10,15 +10,24 @@ enum nfnl_acct_msg_types {
NFNL_MSG_ACCT_GET,
NFNL_MSG_ACCT_GET_CTRZERO,
NFNL_MSG_ACCT_DEL,
NFNL_MSG_ACCT_OVERQUOTA,
NFNL_MSG_ACCT_MAX
};
enum nfnl_acct_flags {
NFACCT_F_QUOTA_PKTS = (1 << 0),
NFACCT_F_QUOTA_BYTES = (1 << 1),
NFACCT_F_OVERQUOTA = (1 << 2), /* can't be set from userspace */
};
enum nfnl_acct_type {
NFACCT_UNSPEC,
NFACCT_NAME,
NFACCT_PKTS,
NFACCT_BYTES,
NFACCT_USE,
NFACCT_FLAGS,
NFACCT_QUOTA,
__NFACCT_MAX
};
#define NFACCT_MAX (__NFACCT_MAX - 1)