;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2018 Mathieu Othacehe ;;; Copyright © 2019 Ludovic Courtès ;;; ;;; This file is part of GNU Guix. ;;; ;;; GNU Guix is free software; you can redistribute it and/or modify it ;;; under the terms of the GNU General Public License as published by ;;; the Free Software Foundation; either version 3 of the License, or (at ;;; your option) any later version. ;;; ;;; GNU Guix is distributed in the hope that it will be useful, but ;;; WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;;; GNU General Public License for more details. ;;; ;;; You should have received a copy of the GNU General Public License ;;; along with GNU Guix. If not, see . (define-module (gnu installer final) #:use-module (gnu installer newt page) #:use-module (gnu installer steps) #:use-module (gnu installer utils) #:use-module (gnu installer user) #:use-module (gnu services herd) #:use-module (guix build utils) #:use-module (gnu build accounts) #:use-module ((gnu system shadow) #:prefix sys:) #:use-module (rnrs io ports) #:export (install-system)) (define %seed (seed->random-state (logxor (getpid) (car (gettimeofday))))) (define (integer->alphanumeric-char n) "Map N, an integer in the [0..62] range, to an alphanumeric character." (cond ((< n 10) (integer->char (+ (char->integer #\0) n))) ((< n 36) (integer->char (+ (char->integer #\A) (- n 10)))) ((< n 62) (integer->char (+ (char->integer #\a) (- n 36)))) (else (error "integer out of bounds" n)))) (define (random-string len) "Compute a random string of size LEN where each character is alphanumeric." (let loop ((chars '()) (len len)) (if (zero? len) (list->string chars) (let ((n (random 62 %seed))) (loop (cons (integer->alphanumeric-char n) chars) (- len 1)))))) (define (create-user-database users root) "Create /etc/passwd, /etc/shadow, and /etc/group under ROOT for the given USERS." (define etc (string-append root "/etc")) (define (salt) ;; "$6" gives us a SHA512 password hash; the random string must be taken ;; from the './0-9A-Za-z' alphabet (info "(libc) Passphrase Storage"). (string-append "$6$" (random-string 10))) (define users* (map (lambda (user) (define root? (string=? "root" (user-name user))) (sys:user-account (name (user-name user)) (comment (user-real-name user)) (group "users") (uid (if root? 0 #f)) (home-directory (user-home-directory user)) (password (crypt (user-password user) (salt))) ;; We need a string here, not a file-like, hence ;; this choice. (shell "/run/current-system/profile/bin/bash"))) users)) (define-values (group password shadow) (user+group-databases users* sys:%base-groups #:current-passwd '() #:current-groups '() #:current-shadow '())) (mkdir-p etc) (write-group group (string-append etc "/group")) (write-passwd password (string-append etc "/passwd")) (write-shadow shadow (string-append etc "/shadow"))) (define* (install-system locale #:key (users '())) "Create /etc/shadow and /etc/passwd on the installation target for USERS. Start COW-STORE service on target directory and launch guix install command in a subshell. LOCALE must be the locale name under which that command will run, or #f. Return #t on success and #f on failure." (let ((install-command (format #f "guix system init ~a ~a" (%installer-configuration-file) (%installer-target-dir)))) (mkdir-p (%installer-target-dir)) ;; We want to initialize user passwords but we don't want to store them in ;; the config file since the password hashes would end up world-readable ;; in the store. Thus, create /etc/shadow & co. here such that, on the ;; first boot, the activation snippet that creates accounts will reuse the ;; passwords that we've put in there. (create-user-database users (%installer-target-dir)) (start-service 'cow-store (list (%installer-target-dir))) (run-shell-command install-command #:locale locale))) e-manifest.scm?id=8e8d984fd6db77bb5c1bec66369e5e99470d416f'>maint: Actually check for the availablility of system packages....Ludovic Courtès 2020-04-08maint: Adjust release manifest for Guile 3.0 switch....Marius Bakke 2020-04-08maint: Cross-build GUILE-2.2/FIXED....Ludovic Courtès 2020-04-07maint: Remove GCC from the packages to cross-build....Ludovic Courtès 2020-04-04maint: Remove unsupported cross-compilation jobs from 'release-manifest.scm'....Ludovic Courtès 2020-03-13maint: Add 'etc/release-manifest.scm'....Ludovic Courtès