12 files changed, 366 insertions, 39 deletions

diff --git a/hosts/vidhar/default.nix b/hosts/vidhar/default.nix
index 7f780d9a..5c70c669 100644
--- a/hosts/vidhar/default.nix
+++ b/hosts/vidhar/default.nix
@@ -4,7 +4,7 @@ with lib;
 
 {
   imports = with flake.nixosModules.systemProfiles; [
-    ./zfs.nix ./network ./samba.nix ./dns ./prometheus ./borg ./pgbackrest
+    ./zfs.nix ./network ./samba.nix ./dns ./prometheus ./borg ./pgbackrest ./printing
     tmpfs-root zfs
     initrd-all-crypto-modules default-locale openssh rebuild-machines
     build-server
@@ -82,8 +82,10 @@ with lib;
 
     services.openssh = {
       enable = true;
-      passwordAuthentication = false;
-      kbdInteractiveAuthentication = false;
+      settings = {
+        PasswordAuthentication = false;
+        KbdInteractiveAuthentication = false;
+      };
       extraConfig = ''
         AllowGroups ssh
       '';
diff --git a/hosts/vidhar/dns/default.nix b/hosts/vidhar/dns/default.nix
index ade884e7..f942b3f9 100644
--- a/hosts/vidhar/dns/default.nix
+++ b/hosts/vidhar/dns/default.nix
@@ -20,7 +20,7 @@ in {
       enableRootTrustAnchor = false;
       settings = {
         server = {
-          interface = ["lo" "lan"];
+          interface = ["lo" "lan" "ve-printing"];
           prefer-ip6 = true;
           access-control = ["0.0.0.0/0 allow" "::/0 allow"];
           root-hints = "${pkgs.dns-root-data}/root.hints";
@@ -79,6 +79,10 @@ in {
       };
     };
 
+    systemd.services.unbound = {
+      after = [ "container@printinp.service" ];
+    };
+
     systemd.services.knot = {
       unitConfig.RequiresMountsFor = [ "/var/lib/knot" ];
       serviceConfig.LoadCredential = map ({name, ...}: "${name}.yaml:${config.sops.secrets.${name}.path}") knotKeys;
diff --git a/hosts/vidhar/dns/zones/arpa.in-addr.10.141.soa b/hosts/vidhar/dns/zones/arpa.in-addr.10.141.soa
index 01941df6..5f98034e 100644
--- a/hosts/vidhar/dns/zones/arpa.in-addr.10.141.soa
+++ b/hosts/vidhar/dns/zones/arpa.in-addr.10.141.soa
@@ -1,7 +1,7 @@
 $ORIGIN 141.10.in-addr.arpa.
 $TTL 300
 @ IN SOA vidhar.lan.yggdrasil. hostmaster.yggdrasil.li (
-  2023022700 ; serial
+  2023030402 ; serial
   300        ; refresh
   300        ; retry
   300        ; expire
@@ -11,8 +11,11 @@ $TTL 300
         IN      NS      vidhar.lan.yggdrasil.
 
 1.0     IN      PTR     vidhar.lan.yggdrasil.
-2.0     IN      PTR     printer.lan.yggdrasil.
 
 1.1     IN      PTR     vidhar.mgmt.yggdrasil.
 2.1     IN      PTR     switch01.mgmt.yggdrasil.
 4.1     IN      PTR     ap01.mgmt.yggdrasil.
+
+3.2     IN      PTR     printer.printer.yggdrasil.
+
+1.4     IN      PTR     printing.vidhar.lan.yggdrasil.
diff --git a/hosts/vidhar/dns/zones/arpa.ip6.2.a.0.3.4.0.0.0.0.0.5.2.0.a.d.a.0.0.0.1.soa b/hosts/vidhar/dns/zones/arpa.ip6.2.a.0.3.4.0.0.0.0.0.5.2.0.a.d.a.0.0.0.1.soa
index c1955ec7..bec3fd05 100644
--- a/hosts/vidhar/dns/zones/arpa.ip6.2.a.0.3.4.0.0.0.0.0.5.2.0.a.d.a.0.0.0.1.soa
+++ b/hosts/vidhar/dns/zones/arpa.ip6.2.a.0.3.4.0.0.0.0.0.5.2.0.a.d.a.0.0.0.1.soa
@@ -1,7 +1,7 @@
 $ORIGIN 1.0.0.0.a.d.a.0.2.5.0.0.0.0.0.4.3.0.a.2.ip6.arpa.
 $TTL 300
 @ IN SOA vidhar.lan.yggdrasil. hostmaster.yggdrasil.li (
-  2022031801 ; serial
+  2023030400 ; serial
   300        ; refresh
   300        ; retry
   300        ; expire
@@ -13,3 +13,5 @@ $TTL 300
 0.0.0.0.0.0.0.0.0.0.0.0 IN      PTR     surtr.yggdrasil.
 0.0.0.0.0.0.0.0.0.0.0.1 IN      PTR     vidhar.yggdrasil.
 0.0.0.0.0.0.0.0.0.0.0.2 IN      PTR     sif.yggdrasil.
+
+0.0.0.0.0.4.0.0.0.0.0.1 IN      PTR     printing.vidhar.yggdrasil.
diff --git a/hosts/vidhar/dns/zones/yggdrasil.soa b/hosts/vidhar/dns/zones/yggdrasil.soa
index 49617c80..3d0daaac 100644
--- a/hosts/vidhar/dns/zones/yggdrasil.soa
+++ b/hosts/vidhar/dns/zones/yggdrasil.soa
@@ -1,7 +1,7 @@
 $ORIGIN yggdrasil.
 $TTL 300
 @ IN SOA vidhar.yggdrasil. hostmaster.yggdrasil.li (
-  2023022700 ; serial
+  2023030405 ; serial
   300        ; refresh
   300        ; retry
   300        ; expire
@@ -23,9 +23,13 @@ pgbackrest.surtr	IN	CNAME	surtr.yggdrasil.
 
 
 vidhar.lan      IN      A       10.141.0.1
-printer.lan     IN      A       10.141.0.2
 
 vidhar.mgmt     IN      A       10.141.1.1
 switch01.mgmt   IN      A       10.141.1.2
 dsl01.mgmt      IN      A       10.141.1.3
 ap01.mgmt       IN      A       10.141.1.4
+
+printer.printer IN      A       10.141.3.2
+
+printing.vidhar.lan IN  A       10.141.4.1
+printing.vidhar IN      AAAA    2a03:4000:52:ada:4::1
diff --git a/hosts/vidhar/network/default.nix b/hosts/vidhar/network/default.nix
index ddc5d78d..1d0f5465 100644
--- a/hosts/vidhar/network/default.nix
+++ b/hosts/vidhar/network/default.nix
@@ -24,7 +24,7 @@ with lib;
           { address = "10.141.1.1"; prefixLength = 24; }
         ];
       };
-      interfaces."dmz01" = {
+      interfaces."wifibh" = {
         ipv4.addresses = [
           { address = "10.141.2.1"; prefixLength = 24; }
         ];
@@ -39,7 +39,7 @@ with lib;
           id = 3;
           interface = "eno2";
         };
-        dmz01 = {
+        wifibh = {
           id = 4;
           interface = "eno2";
         };
diff --git a/hosts/vidhar/network/dhcp/default.nix b/hosts/vidhar/network/dhcp/default.nix
index af7a3545..4d8a54ae 100644
--- a/hosts/vidhar/network/dhcp/default.nix
+++ b/hosts/vidhar/network/dhcp/default.nix
@@ -108,10 +108,6 @@ with lib;
                 { hostname = "geri";
                   hw-address = "0e:e6:43:5e:37:7b";
                 }
-                { hostname = "printer";
-                  hw-address = "30:cd:a7:b0:55:8d";
-                  ip-address = "10.141.0.2";
-                }
               ];
             }
             { subnet = "10.141.1.0/24";
@@ -122,6 +118,9 @@ with lib;
                 { name = "broadcast-address";
                   data = "10.141.1.255";
                 }
+                { name = "ntp-servers";
+                  data = "10.141.1.1";
+                }
                 { name = "domain-name";
                   data = "yggdrasil";
                 }
diff --git a/hosts/vidhar/network/dsl.nix b/hosts/vidhar/network/dsl.nix
index 536e0e0d..5b7c5ac7 100644
--- a/hosts/vidhar/network/dsl.nix
+++ b/hosts/vidhar/network/dsl.nix
@@ -97,13 +97,6 @@ in {
             dnssl = [{ domain_names = ["yggdrasil"]; }];
             # other_config = true;
           }
-          { name = "dmz01";
-            advertise = true;
-            verbose = true;
-            prefix = [{ prefix = "::/64"; }];
-            route = [{ prefix = "::/0"; }];
-            rdnss = [{ servers = ["::"]; }];
-          }
         ];
 
         debug = {
@@ -123,11 +116,6 @@ in {
               interface = "lan";
               network = "::/0";
             };
-            dmz01 = {
-              method = "iface";
-              interface = "dmz01";
-              network = "::/0";
-            };
           };
         };
       };
@@ -170,7 +158,7 @@ in {
       '';
 
       postStop = ''
-        for dev in lan dmz01; do
+        for dev in lan; do
           ${pkgs.iproute2}/bin/ip -6 a show dev "''${dev}" scope global | ${pkgs.gnugrep}/bin/grep inet6 | ${pkgs.gawk}/bin/awk '{ print $2; }' | ${pkgs.findutils}/bin/xargs -I '{}' -- ${pkgs.iproute2}/bin/ip addr del '{}' dev "''${dev}"
         done
       '';
@@ -195,7 +183,6 @@ in {
           iaid 1195061668
           ipv6rs                 # enable routing solicitation for WAN adapter
           ia_pd 1 lan/0/64/0     # request a PD and assign it to the LAN
-          ia_pd 1 dmz01/1/64/0   # request a PD and assign it to dmz01
 
           reboot 0
 
diff --git a/hosts/vidhar/network/ruleset.nft b/hosts/vidhar/network/ruleset.nft
index da3a9048..d2c88008 100644
--- a/hosts/vidhar/network/ruleset.nft
+++ b/hosts/vidhar/network/ruleset.nft
@@ -59,6 +59,9 @@ table inet filter {
   counter fw-lo {}
   counter fw-lan {}
   counter fw-dsl {}
+  counter fw-printing {}
+
+  counter fw-cups {}
 
   counter reject-ratelimit-fw {}
   counter reject-fw {}
@@ -137,12 +140,17 @@ table inet filter {
 
     iifname lo counter name fw-lo accept
 
-    oifname { lan, dsl, bifrost } meta l4proto $icmp_protos jump forward_icmp_accept
-
+    oifname { lan, dsl, bifrost, ve-printing } meta l4proto $icmp_protos jump forward_icmp_accept
     iifname lan oifname { dsl, bifrost } counter name fw-lan accept
-    iifname dsl oifname { lan, dmz01 } ct state {established, related} counter name fw-dsl accept
 
 
+    iifname lan oifname ve-printing ip daddr 10.141.4.1 tcp dport 631 counter name fw-cups accept
+    iifname lan oifname ve-printing ip6 daddr 2a03:4000:52:ada:4::1 tcp dport 631 counter name fw-cups accept
+
+
+    iifname ve-printing oifname lan ct state {established, related} counter name fw-printing accept
+    iifname dsl oifname lan ct state {established, related} counter name fw-dsl accept
+
 
     limit name lim_reject log level debug prefix "drop forward: " counter name reject-ratelimit-fw drop
     log level debug prefix "reject forward: " counter name reject-fw
@@ -169,7 +177,7 @@ table inet filter {
     iifname { lan, mgmt, dsl, yggdrasil, bifrost } tcp dport 22 counter name ssh-rx accept
     iifname { lan, mgmt, dsl, yggdrasil, bifrost } udp dport 60000-61000 counter name mosh-rx accept
 
-    iifname { lan, mgmt, dmz01, yggdrasil } meta l4proto { tcp, udp } th dport 53 counter name dns-rx accept
+    iifname { lan, mgmt, wifibh, yggdrasil, ve-printing } meta l4proto { tcp, udp } th dport 53 counter name dns-rx accept
 
     iifname { lan, yggdrasil } tcp dport 2049 counter name nfs-rx accept
 
@@ -179,9 +187,9 @@ table inet filter {
 
     iifname dsl meta protocol ip6 udp dport 546 udp sport 547 counter name ipv6-pd-rx accept
 
-    iifname mgmt udp dport 123 counter name ntp-rx accept
+    iifname { mgmt, ve-printing } udp dport 123 counter name ntp-rx accept
 
-    iifname { lan, mgmt, dmz01 } udp dport 67 counter name dhcp-rx accept
+    iifname { lan, mgmt, wifibh } udp dport 67 counter name dhcp-rx accept
 
     iifname lan udp dport { 137, 138, 3702 } counter name samba-rx accept
     iifname lan tcp dport { 445, 139, 5357 } counter name samba-rx accept
@@ -268,4 +276,4 @@ table ip mss_clamp {
 
     oifname dsl tcp flags & (syn|rst) == syn counter name dsl-mss-clamp tcp option maxseg size set rt mtu
   }
-}
\ No newline at end of file
+}
diff --git a/hosts/vidhar/printing/default.nix b/hosts/vidhar/printing/default.nix
new file mode 100644
index 00000000..0e0dfcf7
--- /dev/null
+++ b/hosts/vidhar/printing/default.nix
@@ -0,0 +1,124 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  containerConfig = config.containers.printing.config;
+in {
+  config = {
+    containers.printing = {
+      privateNetwork = true;
+      ephemeral = true;
+      autoStart = true;
+      hostAddress = "10.141.4.0";
+      hostAddress6 = "2a03:4000:52:ada:4::";
+      localAddress = "10.141.4.1";
+      localAddress6 = "2a03:4000:52:ada:4::1";
+      interfaces = [ "printer" ];
+      config = let
+        hostConfig = config;
+      in { ... }: {
+        config = {
+          services = {
+            kea = {
+              dhcp4 = {
+                enable = true;
+                settings = {
+                  valid-lifetime = 4000;
+                  rebind-timer = 2000;
+                  renew-timer = 1000;
+
+                  interfaces-config = {
+                    interfaces = [ "printer" ];
+                  };
+
+                  lease-database = {
+                    name = "/var/lib/kea/dhcp4.leases";
+                    persist = true;
+                    type = "memfile";
+                  };
+
+                  subnet4 = [
+                    { subnet = "10.141.3.0/24";
+                      option-data = [
+                        { name = "domain-name-servers";
+                          data = "10.141.4.0";
+                        }
+                        { name = "ntp-servers";
+                          data = "10.141.4.0";
+                        }
+                        { name = "broadcast-address";
+                          data = "10.141.3.255";
+                        }
+                        { name = "routers";
+                          data = "10.141.3.1";
+                        }
+                        { name = "domain-name";
+                          data = "yggdrasil";
+                        }
+                        { name = "domain-search";
+                          data = "printer.yggdrasil, yggdrasil";
+                        }
+                      ];
+                      pools = [ { pool = "10.141.3.128 - 10.141.3.254"; } ];
+                      reservations = [
+                        { hostname = "printer";
+                          hw-address = "30:cd:a7:b0:55:8d";
+                          ip-address = "10.141.3.2";
+                        }
+                      ];
+                    }
+                  ];
+                };
+              };
+            };
+
+            printing = {
+              enable = true;
+              listenAddresses = [
+                "*:631"
+              ];
+              allowFrom = [ "all" ];
+              extraConf = ''
+                ServerName printing
+                ServerAlias 10.141.4.1 2a03:4000:52:ada:4::1 printing.vidhar.yggdrasil printing.vidhar.lan.yggdrasil
+              '';
+            };
+
+            resolved.enable = false;
+          };
+
+          networking = {
+            firewall.enable = false;
+            nftables = {
+              enable = true;
+              rulesetFile = ./ruleset.nft;
+            };
+
+            useDHCP = false;
+            useNetworkd = true;
+
+            interfaces."printer" = {
+              ipv4.addresses = [
+                { address = "10.141.3.1"; prefixLength = 24; }
+              ];
+            };
+          };
+
+          environment.etc."resolv.conf".text = ''
+            nameserver ${hostConfig.containers.printing.hostAddress6}
+          '';
+
+          system.stateVersion = hostConfig.system.stateVersion;
+        };
+      };
+    };
+
+    networking = {
+      vlans.printer = {
+        id = 5;
+        interface = "eno2";
+      };
+    };
+  };
+}
diff --git a/hosts/vidhar/printing/ruleset.nft b/hosts/vidhar/printing/ruleset.nft
new file mode 100644
index 00000000..c3027567
--- /dev/null
+++ b/hosts/vidhar/printing/ruleset.nft
@@ -0,0 +1,185 @@
+define icmp_protos = {ipv6-icmp, icmp, igmp}
+
+table arp filter {
+  limit lim_arp {
+    rate over 50 mbytes/second burst 50 mbytes
+  }
+
+  counter arp-rx {}
+  counter arp-tx {}
+
+  counter arp-ratelimit-rx {}
+  counter arp-ratelimit-tx {}
+
+  chain input {
+    type filter hook input priority filter
+    policy accept
+
+    limit name lim_arp counter name arp-ratelimit-rx drop
+
+    counter name arp-rx
+  }
+
+  chain output {
+    type filter hook output priority filter
+    policy accept
+
+    limit name lim_arp counter name arp-ratelimit-tx drop
+
+    counter name arp-tx
+  }
+}
+
+table inet filter {
+  limit lim_reject {
+    rate over 1000/second burst 1000 packets
+  }
+
+  limit lim_icmp {
+    rate over 50 mbytes/second burst 50 mbytes
+  }
+
+  counter invalid-fw {}
+  counter fw-lo {}
+  counter fw-printer {}
+  counter fw-host {}
+
+  counter icmp-ratelimit-fw {}
+
+  counter reject-ratelimit-fw {}
+  counter reject-fw {}
+  counter reject-tcp-fw {}
+  counter reject-icmp-fw {}
+
+  counter drop-fw {}
+
+  counter invalid-rx {}
+
+  counter rx-lo {}
+  counter invalid-local4-rx {}
+  counter invalid-local6-rx {}
+
+  counter icmp-ratelimit-rx {}
+  counter icmp-rx {}
+
+  counter cups-rx {}
+
+  counter established-rx {}
+
+  counter reject-ratelimit-rx {}
+  counter reject-rx {}
+  counter reject-tcp-rx {}
+  counter reject-icmp-rx {}
+
+  counter drop-rx {}
+
+  counter tx-lo {}
+
+  counter icmp-ratelimit-tx {}
+  counter icmp-tx {}
+
+  counter cups-tx {}
+
+  counter tx {}
+
+  chain forward {
+    type filter hook forward priority filter
+    policy drop
+
+
+    ct state invalid log level debug prefix "drop invalid forward: " counter name invalid-fw drop
+
+
+    iifname lo counter name fw-lo accept
+
+
+    meta l4proto $icmp_protos limit name lim_icmp counter name icmp-ratelimit-fw drop
+    meta l4proto $icmp_protos counter name icmp-fw accept
+
+
+    iifname printer oifname eth0 ip daddr 10.141.4.0 meta l4proto . th dport { tcp . 53, udp . 53, udp . 123 } counter fw-printer accept
+    iifname printer oifname eth0 ip6 daddr 2a03:4000:52:ada:4:: meta l4proto . th dport { tcp . 53, udp . 53, udp . 123 } counter fw-printer accept
+    iifname eth0 oifname printer counter fw-host accept
+
+
+    limit name lim_reject log level debug prefix "drop forward: " counter name reject-ratelimit-fw drop
+    log level debug prefix "reject forward: " counter name reject-fw
+    meta l4proto tcp ct state new counter name reject-tcp-fw reject with tcp reset
+    ct state new counter name reject-icmp-fw reject
+
+
+    counter name drop-fw
+  }
+
+  chain input {
+    type filter hook input priority filter
+    policy drop
+
+
+    ct state invalid log level debug prefix "drop invalid input: " counter name invalid-rx drop
+
+
+    iifname lo counter name rx-lo accept
+    iif != lo ip daddr 127.0.0.1/8 counter name invalid-local4-rx reject
+    iif != lo ip6 daddr ::1/128 counter name invalid-local6-rx reject
+
+    meta l4proto $icmp_protos limit name lim_icmp counter name icmp-ratelimit-rx drop
+    meta l4proto $icmp_protos counter name icmp-rx accept
+
+
+    ip6 saddr 2a03:4000:52:ada:4:: tcp dport 631 counter name cups-rx accept
+    ip saddr 10.141.4.0 tcp dport 631 counter name cups-rx accept
+
+    ct state {established, related} counter name established-rx accept
+
+
+    limit name lim_reject log level debug prefix "drop input: " counter name reject-ratelimit-rx drop
+    log level debug prefix "reject input: " counter name reject-rx
+    meta l4proto tcp ct state new counter name reject-tcp-rx reject with tcp reset
+    ct state new counter name reject-icmp-rx reject
+
+
+    counter name drop-rx
+  }
+
+  chain output {
+    type filter hook output priority filter
+    policy accept
+
+
+    oifname lo counter name tx-lo accept
+
+    meta l4proto $icmp_protos limit name lim_icmp counter name icmp-ratelimit-tx drop
+    meta l4proto $icmp_protos counter name icmp-tx accept
+
+
+    tcp sport 631 counter name cups-tx accept
+
+
+    counter name tx
+  }
+}
+
+table ip nat {
+  counter host-nat {}
+
+  chain postrouting {
+    type nat hook postrouting priority srcnat
+    policy accept
+
+
+    oifname eth0 counter name host-nat masquerade
+  }
+}
+
+table ip mss_clamp {
+  counter host-mss-clamp {}
+
+  chain postrouting {
+    type filter hook postrouting priority mangle
+    policy accept
+
+
+    oifname eth0 tcp flags & (syn|rst) == syn counter name host-mss-clamp tcp option maxseg size set rt mtu
+  }
+}
diff --git a/hosts/vidhar/samba.nix b/hosts/vidhar/samba.nix
index 89d9f12e..cbe158a9 100644
--- a/hosts/vidhar/samba.nix
+++ b/hosts/vidhar/samba.nix
@@ -4,19 +4,28 @@
     services.samba = {
       enable = true;
       securityType = "user";
+      package = pkgs.samba4.override {
+        enablePrinting = true;
+      };
       extraConfig = ''
         domain master = yes
         workgroup = WORKGROUP
         load printers = no
-        printing = bsd
-        printcap name = /dev/null
-        disable spoolss = yes
+        printing = cups
+        cups server = 10.141.4.1
         guest account = nobody
         bind interfaces only = yes
         interfaces = lo lan
         server signing = mandatory
         server min protocol = SMB3
         server smb encrypt = required
+
+        [printers]
+        path = /srv/samba-printing
+        browseable = yes
+        printable = yes
+        writable = no
+        create mode = 0700
       '';
       shares = {
         homes = {