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postmarketos-config-nftables: allow DNS from wlan* (MR 2448)

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This fixes DNS when a system is connected to a pmOS device as a hotspot.

The rule is in the default set of firewall rules, instead of a
subpackage.. I think this is OK. I don't believe anything should be
listening on port 53 except when the hotspot is running...
This commit is contained in:
Clayton Craft 2021-08-17 17:06:56 -07:00 committed by Dylan Van Assche
parent 2f2976ce7d
commit c1a6a6511b
No known key found for this signature in database
GPG key ID: 8642571587897EA1
2 changed files with 14 additions and 1 deletions
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4
main/postmarketos-config-nftables/APKBUILD
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@ -1,6 +1,6 @@
# Maintainer: Clayton Craft <clayton@craftyguy.net>
pkgname=postmarketos-config-nftables
pkgver=0.4
pkgver=0.5
pkgrel=0
pkgdesc="nftables firewall configuration for postmarketOS"
url="https://gitlab.com/postmarketos"
@ -19,6 +19,7 @@ source="
rules/10_dhcp.nft
rules/50_ssh.nft
rules/51_anbox.nft
rules/51_hotspot.nft
rules/51_usb_inet.nft
rules/60_usb.nft
rules/99_drop_log.nft
@ -71,6 +72,7 @@ sha512sums="
d5a7c7fc47924acfafee42d731e6a0109d83af6278053128deecbf3cf40e37447cb649360ee9ebddd2a5ea276888314b63ce7ef828708b5bf7dd1bface7fbc62 10_dhcp.nft
6b0d0c7c3368dde1ad61d26a0c2e13008f16d5bedaf11fa4a3511b49675505cbbdda8bf8ff158194846b197108f76bdfd66d40a2afb9f4d25c79b02acf5659b7 50_ssh.nft
8322a8a5a5b1e98e1f44e2091b8b3a06db1e8309ebba5b8b6abe9d6fbb009dffb248af55e631f06f01bbced98b23c205462de73cd354b116dbaa7b6c72746bfd 51_anbox.nft
c3c1dba2d10161ca8081f4adcb4dfc6dda4fcd3bc5c473a80d7260e4cdcf071997fc1a28789dcc0f06689c77fc6b477335af5a783ce558192eb897fb27500676 51_hotspot.nft
bceb1a12a9de044daa3a4ba647b0d69b257881151a912fc350d6a00fdf0c0903b51fb58c56cfc73e9a75f529bac841d41d466e0f210b1f516e124e69cbfd1feb 51_usb_inet.nft
0e86974602622c03f0b34acd048e3a31157c0226ab4b5ec093a19696af3fc9637ed84cecf0d190941e4bd3afeb0c76a37245fa850abef46778cd1235ad8106df 60_usb.nft
1532899534d7432a7708620cf1053ab80635fffe038a2352eb890c35fba4247c3b9ab3d0b028da1be765e5feb9b5a5b3a8107f4aa79f790d17930d38535a2288 99_drop_log.nft

11
main/postmarketos-config-nftables/rules/51_hotspot.nft Normal file
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@ -0,0 +1,11 @@
#!/usr/sbin/nft -f
table inet filter {
chain input {
# allow DNS from wlan*
iifname "wlan*" tcp dport 53 accept comment "Accept DNS over TCP on wlan*"
iifname "wlan*" udp dport 53 accept comment "Accept DNS over UDP on wlan*"
}
}