| Commit message (Collapse) | Author | Age | Files | Lines |
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Add translation for Hop-By-Hop header to nftables. Hbh options are not
supported yet in nft.
$ sudo ip6tables-translate -t filter -A INPUT -m hbh --hbh-len 22
nft add rule ip6 filter INPUT hbh hdrlength 22 counter
$ sudo ip6tables-translate -t filter -A INPUT -m hbh ! --hbh-len 22
nft add rule ip6 filter INPUT hbh hdrlength != 22 counter
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The order of mask and mark in the output is wrong. This has been pointed
out: http://git.netfilter.org/iptables/commit/?id=8548dd253833027c68ac6400c3118ef788fabe5d
by Liping Zhang <liping.zhang@spreadtrum.com>.
This patch fixes the same issue with connmark.
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation of ipcomp to nftables.
First value of the parameter 'ipcompspi' will be translated to 'cpi'
parameter in nftables. Parameter 'compres' is not supported in nftables.
Examples:
$ sudo iptables-translate -t filter -A INPUT -m ipcomp --ipcompspi 0x12 -j ACCEPT
nft add rule ip filter INPUT comp cpi 18 counter accept
$ sudo iptables-translate -t filter -A INPUT -m ipcomp ! --ipcompspi 0x12 -j ACCEPT
nft add rule ip filter INPUT comp cpi != 18 counter accept
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The mask and mark's order is reversed, so when we specify the mask, we will
get the wrong translation result:
# iptables-translate -A INPUT -m mark --mark 0x1/0xff
nft add rule ip filter INPUT mark and 0x1 == 0xff counter
Apply this patch, translation will become:
# iptables-translate -A INPUT -m mark --mark 0x1/0xff
nft add rule ip filter INPUT mark and 0xff == 0x1 counter
Cc: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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NETMAP .print function doesn't insert the ' ' character needed to seperate
earlier output from the target network, i.e. iptables -L prints
something like
2.2.2.5-2.2.2.103.3.3.64/28
instead of
2.2.2.5-2.2.2.10 3.3.3.64/28
Add a ' to:' prefix just like we do for S/DNAT targets.
Closes https://bugzilla.netfilter.org/show_bug.cgi?id=1070.
Signed-off-by: Florian Westphal <fw@strlen.de>
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The default burst value is 5 in iptables limit extension while it is 0 in
nft limit expression, if the burst value is default, it will not be
displayed when we dump the rules. But when we do translation from iptables
rules to nft rules, we should keep the limit burst value unchanged, even if
it is not displayed in iptables rules.
And now, if the limit-burst value in the iptables rule is 5 or 0, they are
all translated to nft rule without burst, this is wrong:
$ sudo iptables-translate -A INPUT -m limit --limit 10/s --limit-burst 5
nft add rule ip filter INPUT limit rate 10/second counter
$ sudo iptables-translate -A INPUT -m limit --limit 10/s --limit-burst 0
nft add rule ip filter INPUT limit rate 10/second burst 0 packets counter
Apply this patch, translation will become:
$ sudo iptables-translate -A INPUT -m limit --limit 10/s --limit-burst 5
nft add rule ip filter INPUT limit rate 10/second burst 5 packets counter
$ sudo iptables-translate -A INPUT -m limit --limit 10/s --limit-burst 0
nft add rule ip filter INPUT limit rate 10/second counter
Fixes: a8dfbe3a3acb ("extensions: libxt_limit: Add translation to nft")
Cc: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add missing tests for NFQUEUE.
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Remove the stacking of older version into the newer one by adding the
appropriate code corresponding to each version.
Suggested-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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NFQUEUE had a bug with the ordering of fanout and bypass options which
was arising due to same and odd values for flags and bypass when used
together. Because of this, during bitwise ANDing of flags and
NFQ_FLAG_CPU_FANOUT, the value always evaluated to false (since
NFQ_FLAG_CPU_FANOUT=0x02) and led to skipping of fanout option
whenever it was used before bypass because then flags would be 1.
Before this patch,
$ sudo iptables -A FORWARD -j NFQUEUE -p TCP --sport 80 --queue-balance 0:3 --queue-cpu-fanout --queue-bypass
Chain FORWARD (policy ACCEPT)
target prot opt source destination
NFQUEUE tcp -- anywhere anywhere tcp spt:http NFQUEUE balance 0:3 bypass
After this patch,
Chain FORWARD (policy ACCEPT)
target prot opt source destination
NFQUEUE tcp -- anywhere anywhere tcp spt:http NFQUEUE balance 0:3 bypass cpu-fanout
Closes bugzilla entry: http://bugzilla.netfilter.org/show_bug.cgi?id=939
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The iptables command:
-m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE
should translate to:
tcp flags & fin|syn|rst|psh|ack|urg == 0x0
instead of:
tcp flags & fin|syn|rst|psh|ack|urg == none
Reported-by: Vadim A. Misbakh-Soloviov <netfilter@mva.name>
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Tested-by: Vadim A. Misbakh-Soloviov <netfilter@mva.name>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for TEE target to nft. However, there is a
problem with the output when using ip6tables-translate. I couldn't find a fix
for that.
Examples:
$ iptables-translate -t mangle -A PREROUTING \
-j TEE --gateway 192.168.0.2 --oif eth0
nft add rule ip mangle PREROUTING counter dup to 192.168.0.2 device eth0
$ iptables-translate -t mangle -A PREROUTING \
-j TEE --gateway 192.168.0.2
nft add rule ip mangle PREROUTING counter dup to 192.168.0.2
$ ip6tables-translate -t mangle -A PREROUTING \
-j TEE --gateway ab12:00a1:1112:acba::
nft add rule ip6 mangle PREROUTING counter dup to ab12:a1:1112:acba::
$ ip6tables-translate -t mangle -A PREROUTING \
-j TEE --gateway ab12:00a1:1112:acba:: --oif eth0
nft add rule ip6 mangle PREROUTING counter dup to ab12:a1:1112:acba:: device eth0
Signed-off-by: Roberto García <rodanber@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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the translation
Avoid to print the reject with value in the translation when the value
is the default.
Before this patch:
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT
nft add rule ip6 filter FORWARD tcp dport 22 counter reject with icmpv6 type port-unreachable
After this patch:
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT
nft add rule ip6 filter FORWARD tcp dport 22 counter reject
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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the translation
Avoid to print the reject with value in the translation when the value is the default.
Before this patch:
$ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT
nft add rule ip filter FORWARD tcp dport 22 counter reject with icmp type port-unreachable
After this patch:
$ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT
nft add rule ip filter FORWARD tcp dport 22 counter reject
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for icmp to nftables. Not supported icmp codes in nftables
are: network-unreachable, host-unreachable, protocol-unreachable,
port-unreachable, fragmentation-needed, source-route-failed,
network-unknown, host-unknown, network-prohibited, host-prohibited,
TOS-network-unreachable, TOS-host-unreachable, communication-prohibited,
host-precedence-violation, precedence-cutoff, network-redirect,
host-redirect, TOS-network-redirect, TOS-host-redirect,
ttl-zero-during-transit, ttl-zero-during-reassembly, ip-header-bad and required-option-missing.
Examples:
$ sudo iptables-translate -t filter -A INPUT -m icmp --icmp-type echo-reply -j ACCEPT
nft add rule ip filter INPUT icmp type echo-reply counter accept
$ sudo iptables-translate -t filter -A INPUT -m icmp --icmp-type 3 -j ACCEPT
nft add rule ip filter INPUT icmp type destination-unreachable counter accept
$ sudo iptables-translate -t filter -A INPUT -m icmp ! --icmp-type 3 -j ACCEPT
nft add rule ip filter INPUT icmp type != destination-unreachable counter accept
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Remove the log level when default is used
Before:
$ sudo iptables-translate -I INPUT -j LOG
nft add rule filter INPUT log level warning
After:
$ sudo iptables-translate -I INPUT -j LOG
nft add rule filter INPUT counter log
Signed-off-by: Roberto García <rodanber@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Avoid to print the log level in the translation when the level is the
default value.
Example:
$ sudo iptables-translate -t filter -A INPUT -m icmp ! --icmp-type 10 -j LOG
nft add rule ip filter INPUT icmp type != router-solicitation counter log
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
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Reported by Debian lintian tool.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
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The multiport match needs it, this basically leaves ->xlate() indirection
with almost the same interface as ->print().
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for icmpv6 to nftables.
Not supported icmp codes in nftables are: no-route,
communication-prohibited, beyond-scope, address-unreachable,
port-unreachable, failed-policy, reject-route, ttl-zero-during-transit,
ttl-zero-during-reassembly, bad-header, unknown-header-type and
unknown-option.
Examples:
$ ip6tables-translate -t filter -A INPUT -m icmp6 --icmpv6-type 1 -j LOG
nft add rule ip6 filter INPUT icmpv6 type destination-unreachable counter log level warn
$ ip6tables-translate -t filter -A INPUT -m icmp6 --icmpv6-type neighbour-advertisement -j LOG
nft add rule ip6 filter INPUT icmpv6 type nd-neighbor-advert counter log level warn
$ ip6tables-translate -t filter -A INPUT -m icmp6 ! --icmpv6-type packet-too-big -j LOG
nft add rule ip6 filter INPUT icmpv6 type != packet-too-big counter log level warn
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for rt for options --rt-type, --rt-segsleft and --rt-len.
Examples:
$ sudo ip6tables-translate -A INPUT -m rt --rt-type 0 -j DROP
nft add rule ip6 filter INPUT rt type 0 counter drop
$ sudo ip6tables-translate -A INPUT -m rt ! --rt-len 22 -j DROP
nft add rule ip6 filter INPUT rt hdrlength != 22 counter drop
$ sudo ip6tables-translate -A INPUT -m rt --rt-segsleft 26 -j ACCEPT
nft add rule ip6 filter INPUT rt seg-left 26 counter accept
The xlate function returns 0 for other options.
Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for dccp to nftables.
Full translation of this match awaits the support for --dccp-option.
Examples:
$ sudo iptables-translate -A INPUT -p dccp -m dccp --sport 100
nft add rule ip filter INPUT dccp sport 100 counter
$ sudo iptables-translate -A INPUT -p dccp -m dccp --dport 100:200
nft add rule ip filter INPUT dccp dport 100-200 counter
$ sudo iptables-translate -A INPUT -p dccp -m dccp ! --dport 100
nft add rule ip filter INPUT dccp dport != 100 counter
$ sudo iptables-translate -A INPUT -p dccp -m dccp --dport 100 --dccp-types REQUEST,RESPONSE,DATA,ACK,DATAACK,CLOSEREQ,CLOSE,SYNC,SYNCACK
nft add rule ip filter INPUT dccp dport 100 dccp type {request, response, data, ack, dataack, closereq, close, sync, syncack} counter
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for sctp to nftables.
Full translation of this match awaits the support for --chunk-types
option.
Examples:
$ sudo iptables-translate -A INPUT -p sctp --dport 80 -j DROP
nft add rule ip filter INPUT sctp dport 80 counter drop
$ sudo iptables-translate -A INPUT -p sctp ! --sport 80:100 -j ACCEPT
nft add rule ip filter INPUT sctp sport != 80-100 counter accept
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for module owner to nftables.
Full translation of this match awaits the support for --socket-exists
option.
Examples:
$ sudo iptables-translate -t nat -A OUTPUT -p tcp --dport 80 -m owner --uid-owner root -j ACCEPT
nft add rule ip nat OUTPUT tcp dport 80 skuid 0 counter accept
$ sudo iptables-translate -t nat -A OUTPUT -p tcp --dport 80 -m owner --gid-owner 0-10 -j ACCEPT
nft add rule ip nat OUTPUT tcp dport 80 skgid 0-10 counter accept
$ sudo iptables-translate -t nat -A OUTPUT -p tcp --dport 80 -m owner ! --uid-owner shivani -j ACCEPT
nft add rule ip nat OUTPUT tcp dport 80 skuid != 1000 counter accept
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for mobility header to nftables.
Examples:
$ sudo ip6tables-translate -A INPUT -p mh --mh-type 1 -j ACCEPT
nft add rule ip6 filter INPUT meta l4proto mobility-header mh type 1 counter accept
$ sudo ip6tables-translate -A INPUT -p mh --mh-type 1:3 -j ACCEPT
nft add rule ip6 filter INPUT meta l4proto mobility-header mh type 1-3 counter accept
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for masquerade to nftables.
Examples:
$ sudo ip6tables-translate -t nat -A POSTROUTING -j MASQUERADE
nft add rule ip6 nat POSTROUTING counter masquerade
$ sudo ip6tables-translate -t nat -A POSTROUTING -p tcp -j MASQUERADE --to-ports 10
nft add rule ip6 nat POSTROUTING ip6 nexthdr tcp counter masquerade to :10
$ sudo ip6tables-translate -t nat -A POSTROUTING -p tcp -j MASQUERADE --to-ports 10-20 --random
nft add rule ip6 nat POSTROUTING ip6 nexthdr tcp counter masquerade to :10-20 random
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for masquerade to nftables.
Examples:
$ sudo iptables-translate -t nat -A POSTROUTING -j MASQUERADE
nft add rule ip nat POSTROUTING counter masquerade
$ sudo iptables-translate -t nat -A POSTROUTING -p tcp -j MASQUERADE --to-ports 10
nft add rule ip nat POSTROUTING ip protocol tcp counter masquerade to :10
$ sudo iptables-translate -t nat -A POSTROUTING -p tcp -j MASQUERADE --to-ports 10-20 --random
nft add rule ip nat POSTROUTING ip protocol tcp counter masquerade to :10-20 random
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add missing constants for libxt_TCPOPTSTRIP.c, in case they are not defined.
(Original patch from VoidLinux)
Signed-off-by: Loganaden Velvindron <logan@hackers.mu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for match comment to nftables.
This patch also adds the relevant infrastructure for carrying out
the translation.
Example:
$ sudo iptables-translate -A INPUT -s 192.168.0.0 -m comment --comment "A privatized IP block"
nft add rule ip filter INPUT ip saddr 192.168.0.0 counter comment \"A privatized IP block\"
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for NF queue to nftables.
Examples:
$ sudo iptables-translate -t nat -A PREROUTING -p tcp --dport 80 -j NFQUEUE --queue-num 30
nft add rule ip nat PREROUTING tcp dport 80 counter queue num 30
$ sudo iptables-translate -A FORWARD -j NFQUEUE --queue-num 0 --queue-bypass -p TCP --sport 80
nft add rule ip filter FORWARD tcp sport 80 counter queue num 0 bypass
$ sudo iptables-translate -A FORWARD -j NFQUEUE --queue-bypass -p TCP --sport 80 --queue-balance 0:3 --queue-cpu-fanout
nft add rule ip filter FORWARD tcp sport 80 counter queue num 0-3 bypass,fanout
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Use a more generic name for this object to prepare the introduction of
other translation specific fields.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for REDIRECT target to nftables.
Examples:
$ sudo ip6tables-translate -t nat -A prerouting -p tcp --dport 80 -j REDIRECT --to-ports 8080
nft add rule ip6 nat prerouting tcp dport 80 counter redirect to 8080
$ sudo ip6tables-translate -t nat -A prerouting -p tcp --dport 80 -j REDIRECT --to-ports 8080 --random
nft add rule ip6 nat prerouting tcp dport 80 counter redirect to 8080 random
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for target REDIRECT to nftables.
Examples:
$ sudo iptables-translate -t nat -A prerouting -p tcp --dport 80 -j REDIRECT --to-ports 8080
nft add rule ip nat prerouting tcp dport 80 counter redirect to 8080
$ sudo iptables-translate -t nat -A prerouting -p tcp --dport 80 -j REDIRECT --to-ports 8080 --random
nft add rule ip nat prerouting tcp dport 80 counter redirect to 8080 random
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for hop limit to nftables.
Examples:
$ sudo ip6tables-translate -t nat -A postrouting -m hl --hl-gt 3
nft add rule ip6 nat postrouting ip6 hoplimit gt 3 counter
$ sudo ip6tables-translate -t nat -A postrouting -m hl ! --hl-eq 3
nft add rule ip6 nat postrouting ip6 hoplimit != 3 counter
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for options log-level and log-prefix of LOG target
to nftables.
Full translation of this target awaits the support for the options
log-tcp-sequence, log-tcp-options, log-ip-options, log-uid and
log-macdecode in nftables
Examples:
$ sudo ip6tables-translate -A FORWARD -p tcp -j LOG --log-level debug
nft add rule ip6 filter FORWARD ip6 nexthdr tcp counter log level debug
$ sudo ip6tables-translate -A FORWARD -p tcp -j LOG --log-prefix "Checking log"
nft add rule ip6 filter FORWARD ip6 nexthdr tcp counter log prefix \"Checking log\" level warn
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for options log-level and log-prefix of LOG target
to nftables.
Full translation of this target awaits the support for the options
log-tcp-sequence, log-tcp-options, log-ip-options, log-uid and
log-macdecode in nftables.
Examples:
$ sudo iptables-translate -A FORWARD -p tcp -j LOG --log-level error
nft add rule ip filter FORWARD ip protocol tcp counter log level err
$ sudo iptables-translate -A FORWARD -p tcp -j LOG --log-prefix "Random prefix"
nft add rule ip filter FORWARD ip protocol tcp counter log prefix \"Random prefix\" level warn
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for target REJECT to nftables.
Examples:
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with icmp6-reject-route
nft add rule ip6 filter FORWARD tcp dport 22 counter reject with icmpv6 type reject-route
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with tcp-reset
nft add rule ip6 filter FORWARD tcp dport 22 counter reject with tcp reset
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for module ttl to nftables.
Examples:
$ sudo iptables-translate -A INPUT -m ttl --ttl-eq 3 -j ACCEPT
nft add rule ip filter INPUT ip ttl 3 counter accept
$ sudo iptables-translate -A INPUT -m ttl --ttl-gt 5 -j ACCEPT
nft add rule ip filter INPUT ip ttl gt 5 counter accept
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for AH to nftables.
Examples:
$ sudo ip6tables-translate -A INPUT -m ah --ahspi 500 -j DROP
nft add rule ip6 filter INPUT ah spi 500 counter drop
$ sudo ip6tables-translate -A INPUT -m ah --ahspi 500:550 -j DROP
nft add rule ip6 filter INPUT ah spi 500-550 counter drop
$ sudo ip6tables-translate -A INPUT -m ah ! --ahlen 120
nft add rule ip6 filter INPUT ah hdrlength != 120 counter
$ sudo ip6tables-translate -A INPUT -m ah --ahres
nft add rule ip6 filter INPUT ah reserved 1 counter
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for module length to nftables.
Examples:
$ sudo iptables-translate -A INPUT -p icmp -m length --length 86:0xffff -j DROP
nft add rule ip filter INPUT ip protocol icmp meta length 86-65535 counter drop
$ sudo iptables-translate -A INPUT -p udp -m length --length :400
nft add rule ip filter INPUT ip protocol udp meta length 0-400 counter
$ sudo iptables-translate -A INPUT -p udp -m length --length 40
nft add rule ip filter INPUT ip protocol udp meta length 40 counter
$ sudo iptables-translate -A INPUT -p udp -m length ! --length 40
nft add rule ip filter INPUT ip protocol udp meta length != 40 counter
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for SNAT target to nftables.
Examples:
$ sudo ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:80
nft add rule ip6 nat postrouting oifname eth0 ip6 nexthdr tcp counter snat fec0::1234 :80
$ sudo ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:1-20
nft add rule ip6 nat postrouting oifname eth0 ip6 nexthdr tcp counter snat fec0::1234 :1-20
$ sudo ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:123 --random
nft add rule ip6 nat postrouting oifname eth0 ip6 nexthdr tcp counter snat fec0::1234 :123 random
$ sudo ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:123 --random-fully --persistent
nft add rule ip6 nat postrouting oifname eth0 ip6 nexthdr tcp counter snat fec0::1234 :123 fully-random,persistent
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for target DNAT to nftables.
Examples:
$ sudo ip6tables-translate -t nat -A prerouting -i eth1 -p tcp --dport 8080 -j DNAT --to-destination [fec0::1234]:80
nft add rule ip6 nat prerouting iifname eth1 tcp dport 8080 counter dnat fec0::1234 :80
$ sudo ip6tables-translate -t nat -A prerouting -p tcp -j DNAT --to-destination [fec0::1234]:1-20
nft add rule ip6 nat prerouting ip6 nexthdr tcp counter dnat fec0::1234 :1-20
$ sudo ip6tables-translate -t nat -A prerouting -p tcp -j DNAT --to-destination [fec0::1234]:80 --persistent
nft add rule ip6 nat prerouting ip6 nexthdr tcp counter dnat fec0::1234 :80 persistent
$ sudo ip6tables-translate -t nat -A prerouting -p tcp -j DNAT --to-destination [fec0::1234]:80 --random --persistent
nft add rule ip6 nat prerouting ip6 nexthdr tcp counter dnat fec0::1234 :80 random,persistent
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for target DNAT to nftables.
Examples:
$ sudo iptables-translate -t nat -A prerouting -p tcp -o eth0 -j DNAT --to-destination 1.2.3.4
nft add rule ip nat prerouting oifname eth0 ip protocol tcp counter dnat 1.2.3.4
$ sudo iptables-translate -t nat -A prerouting -p tcp -d 15.45.23.67 --dport 80 -j DNAT --to-destination 192.168.1.1-192.168.1.10
nft add rule ip nat prerouting ip daddr 15.45.23.67 tcp dport 80 counter dnat 192.168.1.1-192.168.1.10
$ sudo iptables-translate -t nat -A prerouting -p tcp -o eth0 -j DNAT --to-destination 1.2.3.4:1-1023
nft add rule ip nat prerouting oifname eth0 ip protocol tcp counter dnat 1.2.3.4:1-1023
$ sudo iptables-translate -t nat -A prerouting -p tcp -o eth0 -j DNAT --to-destination 1.2.3.4 --random
nft add rule ip nat prerouting oifname eth0 ip protocol tcp counter dnat 1.2.3.4 random
$ sudo iptables-translate -t nat -A prerouting -p tcp -o eth0 -j DNAT --to-destination 1.2.3.4 --random --persistent
nft add rule ip nat prerouting oifname eth0 ip protocol tcp counter dnat 1.2.3.4 random,persistent
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for target SNAT to nftables.
Examples:
$ sudo iptables-translate -t nat -A postrouting -o eth0 -j SNAT --to 1.2.3.4
nft add rule ip nat postrouting oifname eth0 counter snat 1.2.3.4
$ sudo iptables-translate -t nat -A postrouting -o eth0 -j SNAT --to 1.2.3.4-1.2.3.6
nft add rule ip nat postrouting oifname eth0 counter snat 1.2.3.4-1.2.3.6
$ sudo iptables-translate -t nat -A postrouting -p tcp -o eth0 -j SNAT --to 1.2.3.4:1-1023
nft add rule ip nat postrouting oifname eth0 ip protocol tcp counter snat 1.2.3.4:1-1023
$ sudo iptables-translate -t nat -A postrouting -o eth0 -j SNAT --to 1.2.3.4 --random
nft add rule ip nat postrouting oifname eth0 counter snat 1.2.3.4 random
$ sudo iptables-translate -t nat -A postrouting -o eth0 -j SNAT --to 1.2.3.4 --random --persistent
nft add rule ip nat postrouting oifname eth0 counter snat 1.2.3.4 random,persistent
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for routing realm to nftables.
Examples:
$ sudo iptables-translate -A PREROUTING -m realm --realm 4
nft add rule ip filter PREROUTING rtclassid 0x4 counter
$ sudo iptables-translate -A PREROUTING -m realm --realm 5/5
nft add rule ip filter PREROUTING rtclassid and 0x5 == 0x5 counter
$ sudo iptables-translate -A PREROUTING -m realm ! --realm 50
nft add rule ip filter PREROUTING rtclassid != 0x32 counter
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for target REJECT to nftables.
Examples:
$ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT
nft add rule ip filter FORWARD tcp dport 22 counter reject with icmp type port-unreachable
$ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with icmp-net-unreachable
nft add rule ip filter FORWARD tcp dport 22 counter reject with icmp type net-unreachable
$ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with tcp-reset
nft add rule ip filter FORWARD tcp dport 22 counter reject with tcp reset
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for packet type to nftables.
Examples:
$ sudo iptables-translate -A INPUT -m pkttype --pkt-type broadcast -j DROP
nft add rule ip filter INPUT pkttype broadcast counter drop
$ sudo iptables-translate -A INPUT -m pkttype ! --pkt-type unicast -j DROP
nft add rule ip filter INPUT pkttype != unicast counter drop
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for connmark to nftables.
Examples:
$ sudo iptables-translate -A INPUT -m connmark --mark 2 -j ACCEPT
nft add rule ip filter INPUT ct mark 0x2 counter accept
$ sudo iptables-translate -A INPUT -m connmark ! --mark 2 -j ACCEPT
nft add rule ip filter INPUT ct mark != 0x2 counter accept
$ sudo iptables-translate -A INPUT -m connmark --mark 10/10 -j ACCEPT
nft add rule ip filter INPUT ct mark and 0xa == 0xa counter accept
$ sudo iptables-translate -A INPUT -m connmark ! --mark 10/10 -j ACCEPT
nft add rule ip filter INPUT ct mark and 0xa != 0xa counter accept
$ sudo iptables-translate -t mangle -A PREROUTING -p tcp --dport 40 -m
connmark --mark 0x40
nft add rule ip mangle PREROUTING tcp dport 40 ct mark 0x40 counter
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for Authentication Header to nftables.
Examples:
$ sudo iptables-translate -A INPUT -p 51 -m ah --ahspi 500 -j DROP
nft add rule ip filter INPUT ah spi 500 counter drop
$ sudo iptables-translate -A INPUT -p 51 -m ah --ahspi 500:600 -j DROP
nft add rule ip filter INPUT ah spi 500-600 counter drop
$ sudo iptables-translate -A INPUT -p 51 -m ah ! --ahspi 50 -j DROP
nft add rule ip filter INPUT ah spi != 50 counter drop
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for module cpu to nftables.
Examples:
$ sudo iptables-translate -A INPUT -p tcp --dport 80 -m cpu --cpu 0 -j ACCEPT
nft add rule ip filter INPUT tcp dport 80 cpu 0 counter accept
$ sudo iptables-translate -A INPUT -p tcp --dport 80 -m cpu ! --cpu 1 -j ACCEPT
nft add rule ip filter INPUT tcp dport 80 cpu != 1 counter accept
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add translation for device group to nftables.
Examples:
$ sudo iptables-translate -A FORWARD -m devgroup --src-group 0x2 -j ACCEPT
nft add rule ip filter FORWARD iifgroup 0x2 counter accept
$ sudo iptables-translate -A FORWARD -m devgroup --dst-group 0xc/0xc -j ACCEPT
nft add rule ip filter FORWARD oifgroup and 0xc == 0xc counter accept
$ sudo iptables-translate -t mangle -A PREROUTING -p tcp --dport 46000 -m devgroup --src-group 23 -j ACCEPT
nft add rule ip mangle PREROUTING tcp dport 46000 iifgroup 0x17 counter accept
$ sudo iptables-translate -A FORWARD -m devgroup ! --dst-group 0xc/0xc -j ACCEPT
nft add rule ip filter FORWARD oifgroup and 0xc != 0xc counter accept
$ sudo iptables-translate -A FORWARD -m devgroup ! --src-group 0x2 -j ACCEPT
nft add rule ip filter FORWARD iifgroup != 0x2 counter accept
Signed-off-by : Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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