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Commit 5859034d authored by Patrick McHardy's avatar Patrick McHardy Committed by David S. Miller
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[NETFILTER]: x_tables: add RATEEST target 



Add new rate estimator target (using gen_estimator). In combination with
the rateest match (next patch) this can be used for load-based multipath
routing.

Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cb76c6a5

include/linux/netfilter/Kbuild

+1 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ header-y += xt_DSCP.h 
header-y += xt_MARK.h

header-y += xt_NFLOG.h

header-y += xt_NFQUEUE.h

header-y += xt_RATEEST.h

header-y += xt_SECMARK.h

header-y += xt_TCPMSS.h

header-y += xt_comment.h

include/linux/netfilter/xt_RATEEST.h

0 → 100644
+11 −0
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#ifndef _XT_RATEEST_TARGET_H

#define _XT_RATEEST_TARGET_H



struct xt_rateest_target_info {

	char			name[IFNAMSIZ];

	int8_t			interval;

	u_int8_t		ewma_log;

	struct xt_rateest	*est __attribute__((aligned(8)));

};



#endif /* _XT_RATEEST_TARGET_H */

include/net/netfilter/xt_rateest.h

0 → 100644
+17 −0
Original line number Diff line number Diff line 
#ifndef _XT_RATEEST_H

#define _XT_RATEEST_H



struct xt_rateest {

	struct hlist_node		list;

	char				name[IFNAMSIZ];

	unsigned int			refcnt;

	spinlock_t			lock;

	struct gnet_estimator		params;

	struct gnet_stats_rate_est	rstats;

	struct gnet_stats_basic		bstats;

};



extern struct xt_rateest *xt_rateest_lookup(const char *name);

extern void xt_rateest_put(struct xt_rateest *est);



#endif /* _XT_RATEEST_H */

net/netfilter/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -357,6 +357,16 @@ config NETFILTER_XT_TARGET_NOTRACK 
	  If you want to compile it as a module, say M here and read

	  <file:Documentation/kbuild/modules.txt>.  If unsure, say `N'.



config NETFILTER_XT_TARGET_RATEEST

	tristate '"RATEEST" target support'

	depends on NETFILTER_XTABLES

	help

	  This option adds a `RATEEST' target, which allows to measure

	  rates similar to TC estimators. The `rateest' match can be

	  used to match on the measured rates.



	  To compile it as a module, choose M here.  If unsure, say N.



config NETFILTER_XT_TARGET_TRACE

	tristate  '"TRACE" target support'

	depends on NETFILTER_XTABLES

net/netfilter/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_MARK) += xt_MARK.o 
obj-$(CONFIG_NETFILTER_XT_TARGET_NFLOG) += xt_NFLOG.o

obj-$(CONFIG_NETFILTER_XT_TARGET_NFQUEUE) += xt_NFQUEUE.o

obj-$(CONFIG_NETFILTER_XT_TARGET_NOTRACK) += xt_NOTRACK.o

obj-$(CONFIG_NETFILTER_XT_TARGET_RATEEST) += xt_RATEEST.o

obj-$(CONFIG_NETFILTER_XT_TARGET_SECMARK) += xt_SECMARK.o

obj-$(CONFIG_NETFILTER_XT_TARGET_TCPMSS) += xt_TCPMSS.o

obj-$(CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP) += xt_TCPOPTSTRIP.o