38 lines
1.3 KiB
Text
38 lines
1.3 KiB
Text
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Copyright © 2018-2019 Hugo Levy-Falk <hugo@klafyvel.me>
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# Table checkmac, à bas le spoof d'ips.
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table inet firewall {
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set ip_mac {
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type ipv4_addr . ether_addr
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}
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chain checkmac {
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meta iifname $if_adherent ip saddr . ether saddr != @ip_mac drop
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meta iifname $if_aloes ip saddr . ether saddr != @ip_mac drop
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}
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}
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# Note :
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# - On pourra afficher le set checkmac comme ceci :
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# nft list set firewall ip_mac
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#
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# - On pourra ajouter des éléments comme ceci :
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# nft add element firewall ip_mac { 10.69.6.91 . aa:bb:cc:dd:ee:ff }
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#
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# - En retirer :
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# nft delete element firewall ip_mac { 10.69.6.91 . aa:bb:cc:dd:ee:ff }
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#
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# Le tout à la volée :)
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