(define-module (metznet system base-system) #:use-module (guix gexp) #:use-module (metznet golang) #:use-module (gnu bootloader) #:use-module (gnu bootloader grub) #:use-module (gnu system accounts) #:use-module (gnu system shadow) #:use-module (gnu system setuid) #:use-module (gnu services configuration) #:use-module (gnu system file-systems) #:use-module (gnu system) #:use-module (gnu system nss) #:use-module (gnu services kerberos) #:use-module (metznet services sssd) #:use-module (gnu services base) #:use-module (gnu services sddm) #:use-module (gnu services xorg) #:use-module (gnu services) #:use-module (gnu services desktop) #:use-module (gnu services networking) #:use-module (gnu services ssh) #:use-module (gnu services vpn) #:use-module (gnu system pam) #:use-module (gnu services dbus) #:use-module (gnu system keyboard) #:use-module (gnu packages admin) #:use-module (metznet packages slapd) #:use-module (gnu packages linux) #:use-module (gnu packages shells) #:use-module (gnu packages gnome) #:use-module (gnu packages ssh) #:use-module (gnu packages dns) #:use-module (gnu packages version-control) #:use-module (gnu packages vim) #:use-module (gnu packages certs) #:use-module (gnu packages kerberos) #:use-module (gnu packages vpn) #:use-module (gnu packages wm) #:use-module (gnu packages suckless) #:use-module (gnu packages terminals) #:use-module (gnu packages gnuzilla) #:export (%metznet-base-user-accounts) #:export (%metznet-base-groups) #:export (%metznet-desktop-packages) #:export (%metznet-base-packages) #:export (%kvm-udev-rule) #:export (%usb-udev-rule) #:export (%tun-udev-rule) #:export (%metznet-desktop-services) #:export (%metznet-server-services) #:export (metznet-service-type) #:export (metznet-system-configuration) #:export (%metznet-base-server-system) #:export (%metznet-base-desktop-system)) (define %domain-realm "METZNET.CA") (define %domain-name "metznet.ca") (define %domain-kadmin (string-append "kerberos." %domain-name)) (define %domain-kdc (string-append "kerberos." %domain-name)) (define %metznet-base-user-accounts (append (list (user-account (name "root") (group "root") (uid 0) (password (let ((env-pw (getenv "GUIX_ROOT_PW"))) (if env-pw (crypt env-pw "$6$salt") "!"))) (shell (file-append zsh "/bin/zsh")))) %base-user-accounts)) (define %metznet-base-groups (append (list (user-group (system? #t) (name "realtime")) (user-group (system? #t) (name "usb"))) %base-groups)) (define %metznet-base-packages (append (list openssh openldap-slapd strace git neovim zsh le-certs nss-certs mit-krb5) %base-packages)) (define %metznet-desktop-packages (append (list i3-wm i3status dmenu kitty icecat) %metznet-base-packages)) (define %desktop-setuid-programs (append (list (setuid-program (program #~(string-append #$openvpn "/sbin/openvpn"))) (setuid-program (program #~(string-append #$openresolv "/sbin/resolvconf")))) %setuid-programs)) (define %metznet-krb5-config (krb5-configuration (default-realm %domain-realm) (allow-weak-crypto? #t) (rdns? #f) (realms (list (krb5-realm (name %domain-realm) (admin-server %domain-kadmin) (kdc %domain-kdc)))))) (define %default-keyboard-layout (keyboard-layout "us")) (define %kvm-udev-rule (udev-rule "65-kvm.rules" "KERNEL==\"KVM\", GROUP=\"libvirt\", MODE=\"0660\"")) (define %usb-udev-rule (udev-rule "51-usb.rules" (string-append "SUBSYSTEM==\"usb\", GROUP=\"usb\"\n" "SUBSYSTEM==\"usbmisc\", GROUP=\"usb\""))) (define %tun-udev-rule (udev-rule "90-tun.rules" "KERNEL==\"tun\", GROUP=\"netdev\", MODE=\"0660\", OPTIONS+=\"static_node=net/tun\"")) (define %backlight-udev-rule (udev-rule "55-backlight.rules" "RUN+=\"/bin/chgrp video /sys/class/backlight/intel_backlight/brightness\"")) (define %metznet-name-service-switch (let ((services (list (name-service (name "sss")) (name-service (name "files"))))) (name-service-switch (password services) (shadow services) (group services)))) (define list-of-strings? (list-of string?)) (define-maybe/no-serialization string) (define (file-like-pair? val) (let ((name (car val)) (file (cdr val))) (and (string? name) (file-like? file)))) (define alist-of-file-like? (list-of file-like-pair?)) (define-maybe file-like) (define-configuration/no-serialization metznet-system-configuration (certs (file-like le-certs) "certificate package") (user-shells (alist-of-file-like (list (cons "/bin/zsh" zsh))) "user shells to link") (pam-services (list-of-strings (list "su" "sddm" "login" "sshd" "passwd")) "list of pam services to configure")) (define (pam-mkhomedir-service configuration) (pam-extension (transformer (lambda (pam) (if (member (pam-service-name pam) (metznet-system-configuration-pam-services configuration)) (let ((required (pam-entry (control "required") (module "pam_mkhomedir.so")))) (pam-service (inherit pam) (session (cons required (pam-service-account pam))))) pam))))) (define (pam-mkhomedir-services configuration) (list (pam-mkhomedir-service configuration))) (define (shell-paths configuration) (map car (metznet-system-configuration-user-shells configuration))) (define (shell-packages configuration) (map cdr (metznet-system-configuration-user-shells configuration))) (define (metznet-activation configuration) #~(begin (let ((root (getpw "root"))) (mkdir-p/perms "/var/lib/openvpn" root 448)) (for-each (lambda (path package) (unless (access? path F_OK) (symlink (string-append package path) path))) (list #$@(shell-paths configuration)) (list #$@(shell-packages configuration))))) (define-public metznet-service-type (service-type (name 'metznet-service) (description "MetzNet Services") (extensions (list (service-extension activation-service-type metznet-activation) (service-extension profile-service-type (compose list metznet-system-configuration-certs)) (service-extension pam-root-service-type pam-mkhomedir-services))) (default-value (metznet-system-configuration)))) (define %metznet-sssd-configuration (sssd-configuration (domains (list (cons "metznet.ca" (sssd-domain-configuration (id_provider "ldap") (debug_level "10") (auth_provider "ldap") (cache_credentials #t) (ldap_group_member "member") (ldap_group_object_class "posixGroupAux") (ldap_uri "ldaps://ldap.metznet.ca") (ldap_tls_reqcert "never") (ldap_tls_cacertdir "/etc/ssl/certs") (ldap_search_base "dc=metznet,dc=ca") (ldap_default_bind_dn (or (getenv "LDAP_BIND_DN") "uid=guix,ou=system,ou=accounts,dc=metznet,dc=ca")) (ldap_default_authtok_type (or (getenv "LDAP_AUTHTOK_TYPE") "password")) (ldap_default_authtok (or (getenv "LDAP_AUTHTOK") %unset-value)))))))) (define pubkey-command (program-file "pubkey-command" (with-imported-modules '((guix build utils)) #~(begin (use-modules (guix build utils) (ice-9 format) (ice-9 popen) (ice-9 textual-ports)) (define* (shell-command-to-string cmd) (catch 'shell-command-error (lambda () (let* ((port (open-pipe cmd OPEN_READ)) (str (get-string-all port)) (wtpd (close-pipe port)) (xval (status:exit-val wtpd))) (if (or (eqv? xval #f) (> xval 0)) (throw 'shell-command-error cmd str)) str)) (lambda (key cmd str) (simple-format #t "ERROR: in command ~a\nstring: ~a\n" cmd str) (throw 'error-in-shell-command-to-string cmd str)))) (display (shell-command-to-string (string-join (list #$ (file-append metznet-pubkey "/bin/pubkey") "ldaps://ldap.metznet.ca" "uid=guix,ou=system,ou=accounts,dc=metznet,dc=ca" #$ (or (getenv "LDAP_AUTHTOK") "") "dc=metznet,dc=ca" (list-ref (command-line) 1)) " "))))))) (define %metznet-services (list (service openssh-service-type (openssh-configuration (password-authentication? #f) (extra-content #~(string-join (list "AuthorizedKeysCommandUser root" (string-append "AuthorizedKeysCommand " #$pubkey-command) "KerberosAuthentication yes") "\n")))) (service krb5-service-type %metznet-krb5-config) (service pam-krb5-service-type (pam-krb5-configuration (pam-krb5 pam-krb5) (minimum-uid 1000))) (service sssd-service-type %metznet-sssd-configuration) (service metznet-service-type))) (define %metznet-nscd-configuration (nscd-configuration (caches (append (list (nscd-cache (database 'passwd) (positive-time-to-live (* 3600 12)) (negative-time-to-live 20) (persistent? #t)) (nscd-cache (database 'group) (positive-time-to-live (* 3600 12)) (negative-time-to-live 20) (persistent? #t))) %nscd-default-caches)))) (define %metznet-desktop-services (append %metznet-services (list (service sddm-service-type (sddm-configuration))) (modify-services %desktop-services (delete gdm-service-type) (nscd-service-type config => %metznet-nscd-configuration) (network-manager-service-type config => (network-manager-configuration (inherit config) (vpn-plugins (list network-manager-openvpn))))))) (define %base-services-nscd (modify-services %base-services (nscd-service-type config => %metznet-nscd-configuration))) (define %server-services (append %metznet-services (list (service dbus-root-service-type) (service dhcp-client-service-type) (service openvpn-client-service-type (openvpn-client-configuration (ca "/var/lib/openvpn/ca.crt") (cert "/var/lib/openvpn/client.crt") (key "/var/lib/openvpn/client.key") (tls-auth "/var/lib/openvpn/ta.key") (persist-key? #f) (remote (list (openvpn-remote-configuration (name "vpn.metznet.ca"))))))))) (define %metznet-server-services (append %server-services %base-services-nscd)) (define %metznet-base-server-system (operating-system (host-name "metznet-base-server") (timezone "America/Edmonton") (locale "en_CA.utf8") (keyboard-layout %default-keyboard-layout) (name-service-switch %metznet-name-service-switch) (kernel-arguments (append '("console=ttyS0") %default-kernel-arguments)) (bootloader (bootloader-configuration (bootloader grub-efi-bootloader) (targets '("/boot/efi")) (keyboard-layout keyboard-layout))) (file-systems (cons* (file-system (mount-point "/") (device (file-system-label "guix-data")) (type "ext4") (check? #f)) (file-system (mount-point "/boot/efi") (device (file-system-label "guix-boot")) (type "fat32") (check? #f)) %base-file-systems)) (users %metznet-base-user-accounts) (groups %metznet-base-groups) (packages %metznet-base-packages) (services %metznet-server-services))) (define %metznet-base-desktop-system (operating-system (inherit %metznet-base-server-system) (host-name "metznet-base-desktop") (setuid-programs %desktop-setuid-programs) (packages %metznet-desktop-packages) (services %metznet-desktop-services)))