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author | W. Kosior <koszko@koszko.org> | 2024-05-18 01:00:12 +0200 |
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committer | W. Kosior <koszko@koszko.org> | 2024-05-18 01:00:22 +0200 |
commit | 2b55cf92033ed02cabd545540241585e05f1fbb0 (patch) | |
tree | 9da86016dea518287552b56aaf457da970d4220f /vm.scm | |
download | AGH-ctf-course-2024-2b55cf92033ed02cabd545540241585e05f1fbb0.tar.gz AGH-ctf-course-2024-2b55cf92033ed02cabd545540241585e05f1fbb0.zip |
Initial commit.
Diffstat (limited to 'vm.scm')
-rw-r--r-- | vm.scm | 364 |
1 files changed, 364 insertions, 0 deletions
@@ -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: |