THOUGHTS.txt

@@ -168,6 +168,9 @@ Tue Sep 27 16:14:18 BST 2022
 TODO list is getting both longer and shorter, though longer on
 average.
 
+DONE 1) rename config.environment as .filesystem. and add module
+types for it
+
 2) perhaps we shouldn't use process-based services like [ou]dhcp as
 queryable endpoint for interface addresses (e.g. when adding routes).
 Instead have a separate service for interface address that depends on
@@ -183,8 +186,14 @@ creates the interface instead of using an existing unconfigured one
 
 5) write a test for udhcp
 
+DONE 6) squashfs size is ~ 14MB for a configuration with not much in it,
+look for obvious wastes of space
+
 7) some of the pppoe config should be moved into a ppp service
 
+8) some of configuration.nix (e.g. defining routes) should be moved into
+tools
+
 11) haven't done (overlayfs) overlays at all
 
 13) upgrade ppp to something with an ipv6-up-script option, move ppp and pppoe derivations into their own files
@@ -194,16 +203,19 @@ creates the interface instead of using an existing unconfigured one
 15) "ip address add" seems to magically recognise v4 vs v6 but
 is that specified or fluke?
 
-19) ship logs somehow to log collection system
+DONE 18) maybe stop suffixing all the service names with .service
 
-21) dhcp, dns, hostap service for lan
+19) syslogd - use busybox or s6? the only thing (so far) using it is pppd.
+Maybe we could LD_PRELOAD it to use stderr instead
+
+
+DONE 20) The option currently called defaultPackages needs a better name as
+it doesn't have the same semantics as nixos
+environment.defaultPackages.  maybe call it packagesInProfile or
+packagesOnPath. or defaultProfile.packages
 
-22) support real hardware
 
 Tue Sep 27 22:00:36 BST 2022
 
 Found the cause of huge image size: rp-pppoe ships with scripts that
 reference build-time packages, so we have x86-64 glibc in there
-
-We don't need syslog just to accommodate ppp, there's an underdocumented
-option for it to log to a file descriptor

pkgs/liminix-tools/networking/pppoe.nix

@@ -17,7 +17,7 @@ interface: {
 let
   name = "${interface.device}.pppoe";
   ip-up = writeAshScript "ip-up" {} ''
-    outputs=/run/service-state/${name}/
+    outputs=/run/service-state/${name}.service/
     mkdir -p $outputs
     (cd $outputs
     echo $1 > ifname
@@ -32,7 +32,6 @@ let
     "ip-up-script" ip-up
     "ipparam" name
     "nodetach"
-    "logfd" "2"
   ];
 
 in

pkgs/liminix-tools/networking/udhcpc.nix

@@ -14,7 +14,7 @@ action=$1
 
 set_address() {
     ip address replace $ip/$mask dev $interface
-    dir=/run/service-state/${name}/
+    dir=/run/service-state/${name}.service/
     mkdir -p $dir
     for i in lease mask ip router siaddr dns serverid subnet opt53 interface ; do
         echo ''${!i} > $dir/$i

tests/pppoe/configuration.nix

@@ -25,6 +25,11 @@ in rec {
     "PPP_SYNC_TTY" = "y";
   };
 
+  services.syslogd = longrun {
+    name = "syslogd";
+    run = "${pkgs.busybox}/bin/syslogd -n -O /run/syslog";
+  };
+
   services.pppoe =
     let iface = interface { type = "hardware"; device = "eth0"; };
     in pppoe iface {
@@ -59,6 +64,7 @@ in rec {
       loopback
       defaultroute4
       packet_forwarding
+      syslogd
     ];
   };