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xu-qemu0 host: setup iptables

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This commit is contained in:
tv 2016-02-18 00:50:10 +01:00
parent f7d6e20431
commit 7f1abe50ce
2 changed files with 34 additions and 6 deletions
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18
tv/2configs/xu-qemu0.nix
View File

@ -15,17 +15,23 @@ in
#
# make [install] system=xu-qemu0 target_host=10.56.0.101
# TODO iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
# TODO iptables -A FORWARD -i qemubr0 -s 10.56.0.1/24 -m conntrack --ctstate NEW -j ACCEPT
# TODO iptables -A POSTROUTING -t nat -j MASQUERADE
# TODO iptables -A INPUT -i qemubr0 -p udp -m udp --dport bootps -j ACCEPT
# TODO iptables -A INPUT -i qemubr0 -p udp -m udp --dport domain -j ACCEPT
with config.krebs.lib;
{
networking.dhcpcd.denyInterfaces = [ "qemubr0" ];
tv.iptables.extra = {
nat.POSTROUTING = ["-j MASQUERADE"];
filter.FORWARD = [
"-m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT"
"-i qemubr0 -s 10.56.0.1/24 -m conntrack --ctstate NEW -j ACCEPT"
];
filter.INPUT = [
"-i qemubr0 -p udp -m udp --dport bootps -j ACCEPT"
"-i qemubr0 -p udp -m udp --dport domain -j ACCEPT"
];
};
systemd.network.enable = true;
systemd.services.systemd-networkd-wait-online.enable = false;

22
tv/3modules/iptables.nix
View File

@ -26,6 +26,21 @@ let
type = with types; listOf (either int str);
default = [];
};
extra = {
nat.POSTROUTING = mkOption {
type = with types; listOf str;
default = [];
};
filter.FORWARD = mkOption {
type = with types; listOf str;
default = [];
};
filter.INPUT = mkOption {
type = with types; listOf str;
default = [];
};
};
};
imp = {
@ -57,6 +72,11 @@ let
};
};
formatTable = table:
(concatStringsSep "\n"
(mapAttrsToList
(chain: concatMapStringsSep "\n" (rule: "-A ${chain} ${rule}"))
table));
rules = iptables-version: let
accept-echo-request = {
@ -79,6 +99,7 @@ let
${concatMapStringsSep "\n" (rule: "-A OUTPUT ${rule}") [
"-o lo -p tcp -m tcp --dport 11423 -j REDIRECT --to-ports 22"
]}
${formatTable cfg.extra.nat}
COMMIT
*filter
:INPUT DROP [0:0]
@ -94,6 +115,7 @@ let
++ map accept-new-tcp (unique (map toString cfg.input-internet-accept-new-tcp))
++ ["-i retiolum -j Retiolum"]
)}
${formatTable cfg.extra.filter}
${concatMapStringsSep "\n" (rule: "-A Retiolum ${rule}") ([]
++ optional (cfg.accept-echo-request == "retiolum") accept-echo-request
++ map accept-new-tcp (unique (map toString cfg.input-retiolum-accept-new-tcp))