# This is not part of Liminix per se. This is my "scratchpad" # configuration for the device I'm testing with. # # Parts of it do do things that Liminix eventually needs to do, but # don't look in here for solutions - just for identifying the # problems. { config, pkgs, lib, ... } : let secrets = import ./rotuer-secrets.nix; inherit (pkgs.liminix.networking) address dnsmasq hostapd interface pppoe route; inherit (pkgs.liminix.services) oneshot longrun bundle target; inherit (pkgs) dropbear ifwait serviceFns; in rec { services.loopback = let iface = interface { type = "loopback"; device = "lo";}; in bundle { name = "loopback"; contents = [ (address iface { family = "inet4"; address ="127.0.0.1"; prefixLength = 8;}) (address iface { family = "inet6"; address ="::1"; prefixLength = 128;}) ]; }; boot = { tftp = { enable = true; serverip = "10.0.0.1"; ipaddr = "10.0.0.8"; }; }; imports = [ ./modules/wlan.nix ./modules/tftpboot.nix # ./modules/flashable.nix ]; kernel = { config = { PPP = "y"; PPP_BSDCOMP = "y"; PPP_DEFLATE = "y"; PPP_ASYNC = "y"; PPP_SYNC_TTY = "y"; BRIDGE = "y"; NETFILTER_XT_MATCH_CONNTRACK = "y"; IP6_NF_IPTABLES= "y"; # do we still need these IP_NF_IPTABLES= "y"; # if using nftables directly IP_NF_NAT = "y"; IP_NF_TARGET_MASQUERADE = "y"; NETFILTER = "y"; NETFILTER_ADVANCED = "y"; NETFILTER_XTABLES = "y"; NFT_COMPAT = "y"; NFT_CT = "y"; NFT_LOG = "y"; NFT_MASQ = "y"; NFT_NAT = "y"; NFT_REJECT = "y"; NFT_REJECT_INET = "y"; NF_CONNTRACK = "y"; NF_NAT = "y"; NF_NAT_MASQUERADE = "y"; NF_TABLES= "y"; NF_TABLES_INET = "y"; NF_TABLES_IPV4 = "y"; NF_TABLES_IPV6 = "y"; }; }; services.hostap = hostapd (config.hardware.networkInterfaces.wlan_24) { params = { ssid = "liminix"; country_code = "GB"; hw_mode="g"; channel = "2"; wmm_enabled = 1; ieee80211n = 1; inherit (secrets) wpa_passphrase; auth_algs = 1; # 1=wpa2, 2=wep, 3=both wpa = 2; # 1=wpa, 2=wpa2, 3=both wpa_key_mgmt = "WPA-PSK"; wpa_pairwise = "TKIP CCMP"; # auth for wpa (may not need this?) rsn_pairwise = "CCMP"; # auth for wpa2 }; }; services.hostap5 = hostapd (config.hardware.networkInterfaces.wlan_5) { params = rec { ssid = "liminix_5"; country_code = "GB"; hw_mode="a"; channel = 36; ht_capab = "[HT40+]"; vht_oper_chwidth = 1; vht_oper_centr_freq_seg0_idx = channel + 6; ieee80211ac = 1; wmm_enabled = 1; inherit (secrets) wpa_passphrase; auth_algs = 1; # 1=wpa2, 2=wep, 3=both wpa = 2; # 1=wpa, 2=wpa2, 3=both wpa_key_mgmt = "WPA-PSK"; wpa_pairwise = "TKIP CCMP"; # auth for wpa (may not need this?) rsn_pairwise = "CCMP"; # auth for wpa2 }; }; services.int = let iface = interface { type = "bridge"; device = "int"; }; in address iface { family = "inet4"; address ="10.8.0.1"; prefixLength = 16; }; services.bridge = let primary = services.int; addif = dev: oneshot { name = "add-${dev.device}-to-bridge"; up = "${ifwait}/bin/ifwait -v ${dev.device} running && ip link set dev ${dev.device} master ${primary.device}"; down = "ip link set dev ${dev} nomaster"; dependencies = [ primary dev ]; }; in bundle { name = "bridge-members"; contents = with config.hardware.networkInterfaces; map addif [ wlan_24 lan wlan_5 ]; }; services.sshd = longrun { name = "sshd"; run = '' mkdir -p /run/dropbear ${dropbear}/bin/dropbear -E -P /run/dropbear.pid -R -F ''; }; users.dnsmasq = { uid = 51; gid= 51; gecos = "DNS/DHCP service user"; dir = "/run/dnsmasq"; shell = "/bin/false"; }; users.root.passwd = lib.mkForce secrets.root_password; groups.dnsmasq = { gid = 51; usernames = ["dnsmasq"]; }; groups.system.usernames = ["dnsmasq"]; services.dns = dnsmasq { resolvconf = services.resolvconf; interface = services.int; ranges = ["10.8.0.10,10.8.0.240"]; domain = "fake.liminix.org"; }; services.wan = let iface = config.hardware.networkInterfaces.wan; in pppoe iface { ppp-options = [ "debug" "+ipv6" "noauth" "name" secrets.l2tp.name "password" secrets.l2tp.password ]; }; services.resolvconf = oneshot rec { dependencies = [ services.wan ]; name = "resolvconf"; up = '' . ${serviceFns} ( in_outputs ${name} echo "nameserver $(output ${services.wan} ns1)" > resolv.conf echo "nameserver $(output ${services.wan} ns2)" >> resolv.conf ) ''; down = '' rm -rf /run/service-state/${name}/ ''; }; services.defaultroute4 = route { name = "defaultroute"; via = "$(output ${services.wan} address)"; target = "default"; dependencies = [ services.wan ]; }; services.packet_forwarding = let filename = "/proc/sys/net/ipv4/conf/all/forwarding"; in oneshot { name = "let-the-ip-flow"; up = '' ${pkgs.nftables}/bin/nft -f ${./nat.nft} echo 1 > ${filename} ''; down = "echo 0 > ${filename}"; }; services.default = target { name = "default"; contents = with services; [ loopback config.hardware.networkInterfaces.lan int bridge hostap hostap5 defaultroute4 packet_forwarding dns resolvconf sshd ]; }; defaultProfile.packages = with pkgs; [ nftables strace tcpdump ] ; }