summaryrefslogtreecommitdiff
path: root/vm.scm
diff options
context:
space:
mode:
authorW. Kosior <koszko@koszko.org>2024-05-18 01:00:12 +0200
committerW. Kosior <koszko@koszko.org>2024-05-18 01:00:22 +0200
commit2b55cf92033ed02cabd545540241585e05f1fbb0 (patch)
tree9da86016dea518287552b56aaf457da970d4220f /vm.scm
downloadAGH-ctf-course-2024-2b55cf92033ed02cabd545540241585e05f1fbb0.tar.gz
AGH-ctf-course-2024-2b55cf92033ed02cabd545540241585e05f1fbb0.zip
Initial commit.
Diffstat (limited to 'vm.scm')
-rw-r--r--vm.scm364
1 files changed, 364 insertions, 0 deletions
diff --git a/vm.scm b/vm.scm
new file mode 100644
index 0000000..aeae035
--- /dev/null
+++ b/vm.scm
@@ -0,0 +1,364 @@
+(use-modules ((srfi srfi-26) #:select (cut))
+
+ ((ice-9 match) #:select (match))
+ ((ice-9 popen) #:select (open-pipe* close-pipe))
+ ((ice-9 ports) #:select (OPEN_READ))
+ ((ice-9 regex) #:select (match:substring string-match))
+ ((ice-9 textual-ports) #:select (get-string-all))
+
+ ((gnu bootloader) #:select (bootloader-configuration))
+ ((gnu bootloader grub) #:select (grub-bootloader))
+ ((gnu packages) #:select (specifications->packages))
+ ((gnu packages admin) #:select (shadow))
+ ((gnu packages autotools) #:select
+ (autoconf automake lawrence-boilerplate))
+ ((gnu packages base) #:select (coreutils))
+ ((gnu packages guile) #:select (guile-3.0))
+ ((gnu packages guile-xyz) #:select (guile-cantius guile-lib))
+ ((gnu packages pkg-config) #:select (pkg-config))
+ ((gnu packages tls) #:select (openssl))
+ ((gnu packages web) #:select (httpd))
+ ((gnu services) #:select
+ (activation-service-type modify-services service-extension
+ service-type simple-service))
+ ((gnu services base) #:select
+ (guix-service-type guix-extension %base-services))
+ ((gnu services ldap) #:select
+ (backend-userroot-configuration
+ directory-server-instance-configuration
+ directory-server-service-type slapd-configuration))
+ ((gnu services mcron) #:prefix mc:)
+ ((gnu services networking) #:select (dhcp-client-service-type))
+ ((gnu services shepherd) #:select
+ (shepherd-root-service-type shepherd-service))
+ ((gnu services ssh) #:select
+ (openssh-service-type openssh-configuration))
+ ((gnu services web) #:prefix web:)
+ ((gnu system) #:select
+ (operating-system %base-packages))
+ ((gnu system accounts) #:select
+ (user-account user-extra-groups user-group))
+ ((gnu system file-systems) #:prefix fs:)
+ ((gnu system keyboard) #:select (keyboard-layout))
+ ((gnu system shadow) #:select (%base-groups %base-user-accounts))
+ ((guix build-system gnu)
+ #:select (%gnu-build-system-modules gnu-build-system))
+ ((guix gexp) #:select
+ (file-append gexp local-file with-imported-modules))
+ ((guix licenses) #:prefix license:)
+ ((guix packages) #:select (package)))
+
+(define %here (dirname (current-filename)))
+
+(define 389-ds-base
+ (load (string-append %here "/good-dirsrv.scm")))
+
+(define %ctftilde-phases
+ (with-imported-modules '((guix build guile-build-system))
+ #~(modify-phases %standard-phases
+ (add-after 'install 'patch-executable
+ (lambda* (#:key inputs #:allow-other-keys)
+ (use-modules ((guix build guile-build-system) #:select
+ (target-guile-effective-version)))
+
+ (define* (find-subdirs subdir #:optional
+ (dirs (cons #$output (map cdr inputs))))
+ (filter-map (lambda (pkg)
+ (let ((path (string-append pkg subdir)))
+ (and (file-exists? path) path)))
+ dirs))
+
+ (let* ((gver (target-guile-effective-version))
+ (scmdir (format #f "/share/guile/site/~a" gver))
+ (gobjdir (format #f "/lib/guile/~a/site-ccache" gver))
+ (executable (format #f "~a/bin/ctftilde" #$output))
+ (bin-pkgs (map (cut assoc-ref inputs <>)
+ '("coreutils" "guile" "openssl")))
+ (sbin-pkgs (list (assoc-ref inputs "shadow")))
+ (path (append (find-subdirs "/bin" bin-pkgs)
+ (find-subdirs "/sbin" sbin-pkgs)))
+ (load-path (find-subdirs scmdir))
+ (compiled-path (find-subdirs gobjdir)))
+
+ (patch-shebang executable)
+
+ (wrap-program executable
+ (list "PATH" 'prefix path)
+ (list "GUILE_LOAD_PATH" 'prefix load-path)
+ (list "GUILE_LOAD_COMPILED_PATH" 'prefix compiled-path)))))
+
+ (delete 'strip))))
+
+(define ctftilde
+ (package
+ (name "ctftilde")
+ (version "current")
+ (source (local-file (string-append %here "/ctftilde")
+ #:recursive? #t))
+ (build-system gnu-build-system)
+ (arguments
+ (list #:modules (cons* '(srfi srfi-1)
+ '(srfi srfi-26)
+ %gnu-build-system-modules)
+ #:phases %ctftilde-phases))
+ (native-inputs
+ (list autoconf
+ automake
+ guile-3.0
+ pkg-config
+ lawrence-boilerplate))
+ (inputs
+ (list coreutils guile-3.0 openssl shadow))
+ (propagated-inputs
+ (list guile-cantius guile-lib))
+ (home-page "https://ctftilde.koszko.org/")
+ (synopsis "Ctftilde website and user management.")
+ (description "Simple users management tool and website and built with
+Cantius, part of a CTF competition VM.")
+ (license license:cc0)))
+
+(define %services
+ %base-services)
+
+(define-syntax-rule (prepend list item)
+ (define list
+ (cons item list)))
+
+(prepend %services
+ (service dhcp-client-service-type))
+
+(define ds-root-password-hash
+ (let* ((password (call-with-input-file "ds-389.password" get-string-all))
+ (path (string-split (getenv "PATH") #\:))
+ (has-pwdhash? (search-path path "pwdhash"))
+ (command (list "pwdhash" "-s" "SHA256" password))
+ (command* (if has-pwdhash?
+ command
+ (cons* "guix" "shell" "389-ds-base" "--" command)))
+ (pipe (apply open-pipe* OPEN_READ command*))
+ (hash (get-string-all pipe)))
+ (close-pipe pipe)
+ (string-trim-right hash #\newline)))
+
+(format #t "directory server root password hash: ~A~%" ds-root-password-hash)
+
+(prepend %services
+ (simple-service 'cert-access-ctftilde activation-service-type
+ #~(let ((access-gid (group:gid (getgrnam "cert-ctftilde"))))
+ (for-each (lambda (file mode)
+ (let ((full-path (string-append "/etc/cert-ctftilde" file)))
+ (chown full-path 0 access-gid)
+ (chmod full-path mode)))
+ '("" "/fullchain.pem" "/privkey.pem")
+ '(#o750 #o640 #o640)))))
+
+(prepend %services
+ (service directory-server-service-type
+ (directory-server-instance-configuration
+ (package 389-ds-base)
+ (full-machine-name "ctftilde.koszko.org")
+ (slapd (slapd-configuration
+ (instance-name "ctftilde")
+ (root-dn "cn=CTF Manager")
+ (root-password ds-root-password-hash)
+ (run-dir "/var/run/dirsrv")))
+ (backend-userroot ((@@ (gnu services ldap) backend-userroot-configuration)
+ ;;(create-suffix-entry? #f)
+ (suffix "dc=ctftilde,dc=koszko,dc=org"))))))
+
+(prepend %services
+ (simple-service 'gemini-main-server-directory activation-service-type
+ #~(begin
+ (false-if-exception (delete-file "/srv/gemini"))
+ (symlink #$(local-file (string-append %here "/gemini")
+ #:recursive? #t)
+ "/srv/gemini"))))
+
+(prepend %services
+ (simple-service 'gemini-users-directory activation-service-type
+ #~(mkdir-p "/srv/gemini-users")))
+
+(prepend %services
+ (service web:gmnisrv-service-type
+ (web:gmnisrv-configuration
+ (config-file (local-file "gmnisrv.ini")))))
+
+(prepend %services
+ (simple-service 'guix-authorize-key guix-service-type
+ (guix-extension
+ (authorized-keys (list (local-file "guix-signing-key.pub"))))))
+
+(prepend %services
+ (simple-service 'http-users-directory activation-service-type
+ #~(mkdir-p "/srv/http-users")))
+
+(prepend %services
+ (service web:httpd-service-type
+ (web:httpd-configuration
+ (config
+ (web:httpd-config-file
+ (server-name "ctftilde.koszko.org")
+ (listen '("80" "443"))
+ (error-log "/var/log/httpd/error.log")
+ (modules (append
+ (map (lambda (name)
+ (let ((filename (format #f "/modules/mod_~a.so" name)))
+ (web:httpd-module
+ (name (string-append name "_module"))
+ (file (file-append httpd filename)))))
+ (list "cgid"
+ "headers"
+ "logio"
+ "proxy"
+ "proxy_http"
+ "rewrite"
+ "ssl"
+ "userdir"))
+ web:%default-httpd-modules))
+ (extra-config
+ (list "\
+ LogFormat \"%>s %u %t \\\"%r\\\" %I in %O out \
+\\\"%{Referer}i\\\" \\\"%{User-Agent}i\\\"\" combined
+ CustomLog /var/log/httpd/access.log combined
+ ScriptSock /var/run/cgid.sock
+ ")))))))
+
+(prepend %services
+ (simple-service 'http-virtualhost-ctftilde web:httpd-service-type
+ (map (lambda (port)
+ (web:httpd-virtualhost
+ (format #f "*:~a" port)
+ `("\
+ ServerName ctftilde.koszko.org
+ ServerAlias www.ctftilde.koszko.org
+ ServerAdmin webmaster@ctftilde.koszko.org
+
+ UserDir /srv/http-users
+
+ ProxyPassMatch ^/(([^~].*)?)$ http://127.0.0.1:8080/$1
+ ProxyPassReverse / http://127.0.0.1:8080/
+ "
+ . ,(if (= port 443)
+ '("\
+ SSLEngine on
+ SSLCertificateFile /etc/cert-ctftilde/fullchain.pem
+ SSLCertificateKeyFile /etc/cert-ctftilde/privkey.pem
+ ")
+ '()))))
+ '(80 443))))
+
+(prepend %services
+ (service mc:mcron-service-type
+ (mc:mcron-configuration
+ (/var-tabs? #t))))
+
+(prepend %services
+ (service openssh-service-type
+ (openssh-configuration
+ (permit-root-login 'prohibit-password)
+ (authorized-keys `(("root" ,(local-file "owner.pub"))))
+ (port-number 22))))
+
+(define %ctftilde-accounts
+ (list (user-group (name "ctftilde") (system? #t))
+ (user-account
+ (name "ctftilde")
+ (group "ctftilde")
+ (system? #t)
+ (comment "ctftilde http website server user")
+ (home-directory "/var/run/ctftilde")
+ (shell (file-append shadow "/sbin/nologin")))))
+
+(define %ctftilde-activation
+ #~(begin
+ (mkdir-p "/var/db")
+
+ (let ((old-umask (umask)))
+ (dynamic-wind
+
+ noop
+
+ (lambda _
+ (umask #o077)
+ (mkdir-p "/var/db/ctftilde/users")
+ (mkdir-p "/var/db/ctftilde/users-to-delete"))
+
+ (lambda _
+ (umask old-umask))))
+
+ (system* (string-append #$ctftilde "/bin/ctftilde") "--users-recreate"
+ "--log-file" "/var/log/ctftilde")))
+
+(define %ctftilde-shepherd-services
+ (list (shepherd-service
+ (requirement '(networking))
+ (provision '(ctftilde))
+ (start #~(make-forkexec-constructor
+ (list #$(file-append ctftilde "/bin/ctftilde")
+ "--site-host" "--log-file" "/var/log/ctftilde")))
+ (stop #~(make-kill-destructor))
+ (documentation
+ "ctftilde server daemon (user management & http site)."))))
+
+(define ctftile-service-type
+ (service-type (name 'ctftilde)
+ (description "Host ctftilde main website and manage users.")
+ (extensions
+ (list (service-extension account-service-type
+ (const %ctftilde-accounts))
+ (service-extension activation-service-type
+ (const %ctftilde-activation))
+ (service-extension shepherd-root-service-type
+ (const %ctftilde-shepherd-services))))
+ (default-value #f)))
+
+(prepend %services
+ (service ctftile-service-type))
+
+(define bootloader-target
+ (or (getenv "CTFTILDE_DISK_DEV") "/dev/sda"))
+
+(format #t "bootloader target: ~A~%" bootloader-target)
+
+(operating-system
+ (host-name "ctftilde")
+ (timezone "Europe/Warsaw")
+ (locale "en_US.utf8")
+
+ (keyboard-layout (keyboard-layout "pl"))
+
+ (bootloader (bootloader-configuration
+ (bootloader grub-bootloader)
+ (targets (list bootloader-target))))
+
+ (users %base-user-accounts)
+
+ (groups (cons* (user-group (name "cert-ctftilde") (system? #t))
+ (user-group (name "hackers"))
+ %base-groups))
+
+ (extra-groups (list (user-extra-groups
+ (user "httpd")
+ (groups '("cert-ctftilde")))))
+
+ (file-systems (cons* (fs:file-system
+ (device (fs:file-system-label "ctftilde-root"))
+ (mount-point "/")
+ (type "ext4"))
+ fs:%base-file-systems))
+
+ (packages (append (specifications->packages
+ '("file"
+ "net-tools"
+ "man-pages-posix"
+ "emacs"))
+ (list ctftilde
+ 389-ds-base)
+ %base-packages))
+
+ (services %services))
+
+;;; Local Variables:
+;;; eval: (put 'prepend 'scheme-indent-function 1)
+;;; eval: (put 'simple-service 'scheme-indent-function 2)
+;;; End: