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author | Patrick McHardy <kaber@trash.net> | 2007-12-04 12:02:19 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-01-28 22:56:03 (GMT) |
commit | 50c164a81f1c0dfad056f99e5685537fdd0f07dd (patch) | |
tree | 8f1383e3bdff0de1969dc280faf11b3e4bf01ef8 /include | |
parent | 5859034d7eb8793d3d78d3af515c4175e7b9d03a (diff) | |
download | linux-50c164a81f1c0dfad056f99e5685537fdd0f07dd.tar.xz |
[NETFILTER]: x_tables: add rateest match
Add rate estimator match. The rate estimator match can match on
estimated rates by the RATEEST target. It supports matching on
absolute bps/pps values, comparing two rate estimators and matching
on the difference between two rate estimators.
This is what I use to route outgoing data connections from a FTP
server over two lines based on the available bandwidth:
# estimate outgoing rates
iptables -t mangle -A POSTROUTING -o eth0 -j RATEEST --rateest-name eth0 \
--rateest-interval 250ms \
--rateest-ewma 0.5s
iptables -t mangle -A POSTROUTING -o ppp0 -j RATEEST --rateest-name ppp0 \
--rateest-interval 250ms \
--rateest-ewma 0.5s
# mark based on available bandwidth
iptables -t mangle -A BALANCE -m state --state NEW \
-m helper --helper ftp \
-m rateest --rateest-delta \
--rateest1 eth0 \
--rateest-bps1 2.5mbit \
--rateest-gt \
--rateest2 ppp0 \
--rateest-bps2 2mbit \
-j CONNMARK --set-mark 0x1
iptables -t mangle -A BALANCE -m state --state NEW \
-m helper --helper ftp \
-m rateest --rateest-delta \
--rateest1 ppp0 \
--rateest-bps1 2mbit \
--rateest-gt \
--rateest2 eth0 \
--rateest-bps2 2.5mbit \
-j CONNMARK --set-mark 0x2
iptables -t mangle -A BALANCE -j CONNMARK --restore-mark
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/netfilter/Kbuild | 1 | ||||
-rw-r--r-- | include/linux/netfilter/xt_rateest.h | 33 |
2 files changed, 34 insertions, 0 deletions
diff --git a/include/linux/netfilter/Kbuild b/include/linux/netfilter/Kbuild index 707a158..ac9e642 100644 --- a/include/linux/netfilter/Kbuild +++ b/include/linux/netfilter/Kbuild @@ -30,6 +30,7 @@ header-y += xt_multiport.h header-y += xt_owner.h header-y += xt_pkttype.h header-y += xt_policy.h +header-y += xt_rateest.h header-y += xt_realm.h header-y += xt_sctp.h header-y += xt_state.h diff --git a/include/linux/netfilter/xt_rateest.h b/include/linux/netfilter/xt_rateest.h new file mode 100644 index 0000000..51948e1 --- /dev/null +++ b/include/linux/netfilter/xt_rateest.h @@ -0,0 +1,33 @@ +#ifndef _XT_RATEEST_MATCH_H +#define _XT_RATEEST_MATCH_H + +enum xt_rateest_match_flags { + XT_RATEEST_MATCH_INVERT = 1<<0, + XT_RATEEST_MATCH_ABS = 1<<1, + XT_RATEEST_MATCH_REL = 1<<2, + XT_RATEEST_MATCH_DELTA = 1<<3, + XT_RATEEST_MATCH_BPS = 1<<4, + XT_RATEEST_MATCH_PPS = 1<<5, +}; + +enum xt_rateest_match_mode { + XT_RATEEST_MATCH_NONE, + XT_RATEEST_MATCH_EQ, + XT_RATEEST_MATCH_LT, + XT_RATEEST_MATCH_GT, +}; + +struct xt_rateest_match_info { + char name1[IFNAMSIZ]; + char name2[IFNAMSIZ]; + u_int16_t flags; + u_int16_t mode; + u_int32_t bps1; + u_int32_t pps1; + u_int32_t bps2; + u_int32_t pps2; + struct xt_rateest *est1 __attribute__((aligned(8))); + struct xt_rateest *est2 __attribute__((aligned(8))); +}; + +#endif /* _XT_RATEEST_MATCH_H */ |