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[sourcephile-nix.git] / machines / mermet / networking.nix
1 { pkgs, lib, config, machineName, ipv4, machines, ... }:
2 with builtins;
3 let
4 inherit (builtins.extraBuiltins) pass-to-file;
5 inherit (config) networking users;
6 netIPv4 = ipv4;
7 netIPv4Gateway = "80.67.180.134";
8 #netIPv6 = "2001:912:400:104::35";
9 #netIPv6Gateway = "2001:912:400:104::1";
10 lanIPv4 = "192.168.1.214";
11 lanNet = "192.168.1.0/24";
12 lanIPv4Gateway = "192.168.1.1";
13 in
14 {
15 imports = [
16 networking/nftables.nix
17 ];
18 boot.initrd.network = {
19 enable = true;
20 ssh = {
21 enable = true;
22 # To prevent ssh from freaking out because a different host key is used,
23 # a different port for dropbear is useful
24 # (assuming the same host has also a normal sshd running)
25 port = 2222;
26 authorizedKeys = users.users.root.openssh.authorizedKeys.keys;
27 };
28 # This will automatically load the zfs password prompt on login
29 # and kill the other prompt so boot can continue
30 # The pkill zfs kills the zfs load-key from the console
31 # allowing the boot to continue.
32 postCommands = ''
33 echo >>/root/.profile "zfs load-key -a && pkill zfs"
34 '';
35 };
36
37 /* WARNING: using ipconfig (the ip= kernel parameter) IS NOT RELIABLE:
38 a 91.216.110.35/32 becomes a 91.216.110.35/8
39 boot.kernelParams = map
40 (ip: "ip=${ip.clientIP}:${ip.serverIP}:${ip.gatewayIP}:${ip.netmask}:${ip.hostname}:${ip.device}:${ip.autoconf}")
41 [ { clientIP = netIPv4; serverIP = "";
42 gatewayIP = networking.defaultGateway.address;
43 netmask = "255.255.255.255";
44 hostname = ""; device = networking.defaultGateway.interface;
45 autoconf = "off";
46 }
47 { clientIP = lanIPv4; serverIP = "";
48 gatewayIP = "";
49 netmask = "255.255.255.0";
50 hostname = ""; device = "enp2s0";
51 autoconf = "off";
52 }
53 ];
54 */
55 /* DIY network config, but a right one */
56 boot.initrd.preLVMCommands = ''
57 set -x
58
59 # IPv4 net
60 ip link set enp1s0 up
61 ip address add ${netIPv4}/32 dev enp1s0
62 ip route add ${netIPv4Gateway} dev enp1s0
63 ip route add default via ${netIPv4Gateway} dev enp1s0
64
65 # IPv4 lan
66 ip link set enp2s0 up
67 ip address add ${lanIPv4}/32 dev enp2s0
68 ip route add ${lanIPv4Gateway} dev enp2s0
69 ip route add ${lanNet} dev enp2s0 src ${lanIPv4} proto kernel
70 # NOTE: ${lanIPv4}/24 would not work with initrd's ip, hence ${lanNet}
71
72 # IPv6 net
73 #ip -6 address add ''${netIPv6} dev enp1s0
74 #ip -6 route add ''${netIPv6Gateway} dev enp1s0
75 #ip -6 route add default via ''${netIPv6Gateway} dev enp1s0
76
77 ip -4 address
78 ip -4 route
79 #ip -6 address
80 #ip -6 route
81
82 set +x
83
84 # Since boot.initrd.network's preLVMCommands won't set hasNetwork=1
85 # we have to run the postCommands ourselves.
86 ${config.boot.initrd.network.postCommands}
87 '';
88
89 # Workaround https://github.com/NixOS/nixpkgs/issues/56822
90 #boot.initrd.kernelModules = [ "ipv6" ];
91
92 # Useless without an out-of-band access, and unsecure
93 # (though / may still be encrypted at this point).
94 # boot.kernelParams = [ "boot.shell_on_fail" ];
95
96 # Disable IPv6 entirely until it's available
97 boot.kernel.sysctl = {
98 "net.ipv6.conf.enp1s0.disable_ipv6" = 1;
99 };
100
101 services.knot.extraConfig = lib.mkBefore ''
102 server:
103 listen: ${netIPv4}@53
104 #listen: ::@53
105 '';
106
107 networking = {
108 hostName = machineName;
109 domain = "sourcephile.fr";
110
111 useDHCP = false;
112 defaultGateway = {
113 address = netIPv4Gateway;
114 interface = "enp1s0";
115 };
116 /*
117 defaultGateway6 = {
118 address = netIPv6Gateway;
119 interface = "enp1s0";
120 };
121 */
122 #nameservers = [ ];
123 nftables.ruleset = ''
124 add rule inet filter input iifname "enp1s0" goto net2fw
125 add rule inet filter output oifname "enp1s0" goto fw2net
126 add rule inet filter fw2net ip daddr ${machines.losurdo.extraArgs.ipv4} counter accept comment "losurdo"
127
128 add rule inet filter input iifname "enp2s0" goto lan2fw
129 add rule inet filter output oifname "enp2s0" goto fw2lan
130 '';
131 interfaces.enp1s0 = {
132 useDHCP = false;
133 ipv4.addresses = [ { address = netIPv4; prefixLength = 32; } ];
134 ipv4.routes = [ { address = networking.defaultGateway.address; prefixLength = 32; } ];
135
136 /*
137 ipv6.addresses = [ { address = netIPv6; prefixLength = 64; }
138 { address = "fe80::1"; prefixLength = 10; }
139 ];
140 ipv6.routes = [ { address = networking.defaultGateway6.address; prefixLength = 64; } ];
141 */
142 };
143 interfaces.enp2s0 = {
144 useDHCP = false;
145 ipv4.addresses = [ { address = lanIPv4; prefixLength = 24; } ];
146 /*
147 # FIXME: remove this /1 hack when the machine will be racked at PTT
148 ipv4.routes = [ { address = "0.0.0.0"; prefixLength = 1; via = "192.168.1.1"; }
149 { address = "128.0.0.0"; prefixLength = 1; via = "192.168.1.1"; }
150 ];
151 */
152 /*
153 ipv6.addresses = [ { address = "fe80::1"; prefixLength = 10; } ];
154 ipv6.routes = [ ];
155 */
156 };
157 interfaces.enp3s0 = {
158 useDHCP = false;
159 };
160 };
161 }