;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-syscalls)
+ #:use-module (guix utils)
#:use-module (guix build syscalls)
+ #:use-module (gnu build linux-container)
#:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-26)
#:use-module (srfi srfi-64)
+ #:use-module (system foreign)
+ #:use-module ((ice-9 ftw) #:select (scandir))
#:use-module (ice-9 match))
;; Test the (guix build syscalls) module, although there's not much that can
;; actually be tested without being root.
+(define temp-file
+ (string-append "t-utils-" (number->string (getpid))))
+
+\f
(test-begin "syscalls")
(test-equal "mount, ENOENT"
(memv (system-error-errno args) (list EPERM ENOENT)))))
(test-assert "mount-points"
- (member "/" (mount-points)))
+ ;; Reportedly "/" is not always listed as a mount point, so check a few
+ ;; others (see <http://bugs.gnu.org/20261>.)
+ (any (cute member <> (mount-points))
+ '("/" "/proc" "/sys" "/dev")))
+
+(false-if-exception (delete-file temp-file))
+(test-equal "utime with AT_SYMLINK_NOFOLLOW"
+ '(0 0)
+ (begin
+ ;; Test libguile's utime with AT_SYMLINK_NOFOLLOW, which libguile does not
+ ;; define as of Guile 2.2.4.
+ (symlink "/nowhere" temp-file)
+ (utime temp-file 0 0 0 0 AT_SYMLINK_NOFOLLOW)
+ (let ((st (lstat temp-file)))
+ (delete-file temp-file)
+ ;; Note: 'utimensat' does not change 'ctime'.
+ (list (stat:mtime st) (stat:atime st)))))
(test-assert "swapon, ENOENT/EPERM"
(catch 'system-error
(lambda args
(memv (system-error-errno args) (list EPERM EINVAL ENOENT)))))
-(test-assert "all-network-interfaces"
- (match (all-network-interfaces)
+(test-assert "mkdtemp!"
+ (let* ((tmp (or (getenv "TMPDIR") "/tmp"))
+ (dir (mkdtemp! (string-append tmp "/guix-test-XXXXXX"))))
+ (and (file-exists? dir)
+ (begin
+ (rmdir dir)
+ #t))))
+
+(test-equal "statfs, ENOENT"
+ ENOENT
+ (catch 'system-error
+ (lambda ()
+ (statfs "/does-not-exist"))
+ (compose system-error-errno list)))
+
+(test-assert "statfs"
+ (let ((fs (statfs "/")))
+ (and (file-system? fs)
+ (> (file-system-block-size fs) 0)
+ (>= (file-system-blocks-available fs) 0)
+ (>= (file-system-blocks-free fs)
+ (file-system-blocks-available fs)))))
+
+(define (user-namespace pid)
+ (string-append "/proc/" (number->string pid) "/ns/user"))
+
+(define perform-container-tests?
+ (and (user-namespace-supported?)
+ (unprivileged-user-namespace-supported?)))
+
+(unless perform-container-tests?
+ (test-skip 1))
+(test-assert "clone"
+ (match (clone (logior CLONE_NEWUSER SIGCHLD))
+ (0 (primitive-exit 42))
+ (pid
+ ;; Check if user namespaces are different.
+ (and (not (equal? (readlink (user-namespace pid))
+ (readlink (user-namespace (getpid)))))
+ (match (waitpid pid)
+ ((_ . status)
+ (= 42 (status:exit-val status))))))))
+
+(unless perform-container-tests?
+ (test-skip 1))
+(test-assert "setns"
+ (match (clone (logior CLONE_NEWUSER SIGCHLD))
+ (0 (primitive-exit 0))
+ (clone-pid
+ (match (pipe)
+ ((in . out)
+ (match (primitive-fork)
+ (0
+ (close in)
+ ;; Join the user namespace.
+ (call-with-input-file (user-namespace clone-pid)
+ (lambda (port)
+ (setns (port->fdes port) 0)))
+ (write 'done out)
+ (close out)
+ (primitive-exit 0))
+ (fork-pid
+ (close out)
+ ;; Wait for the child process to join the namespace.
+ (read in)
+ (let ((result (and (equal? (readlink (user-namespace clone-pid))
+ (readlink (user-namespace fork-pid))))))
+ ;; Clean up.
+ (waitpid clone-pid)
+ (waitpid fork-pid)
+ result))))))))
+
+;; XXX: Skip this test when running Linux > 4.7.5 to work around
+;; <https://bugzilla.kernel.org/show_bug.cgi?id=183461>.
+(when (or (not perform-container-tests?)
+ (version>? (utsname:release (uname)) "4.7.5")
+
+ ;; Skip on Ubuntu's 4.4 kernels, which contain a backport of the
+ ;; faulty code: <https://bugs.gnu.org/25476>.
+ (member (utsname:release (uname))
+ '("4.4.0-21-generic" "4.4.0-59-generic"
+ "4.4.0-116-generic")))
+ (test-skip 1))
+(test-equal "pivot-root"
+ #t
+ (match (pipe)
+ ((in . out)
+ (match (clone (logior CLONE_NEWUSER CLONE_NEWNS SIGCHLD))
+ (0
+ (dynamic-wind
+ (const #t)
+ (lambda ()
+ (close in)
+ (call-with-temporary-directory
+ (lambda (root)
+ (let ((put-old (string-append root "/real-root")))
+ (mount "none" root "tmpfs")
+ (mkdir put-old)
+ (call-with-output-file (string-append root "/test")
+ (lambda (port)
+ (display "testing\n" port)))
+ (pivot-root root put-old)
+ ;; The test file should now be located inside the root directory.
+ (write (file-exists? "/test") out)
+ (close out)))))
+ (lambda ()
+ (primitive-exit 0))))
+ (pid
+ (close out)
+ (let ((result (read in)))
+ (close in)
+ (and (zero? (match (waitpid pid)
+ ((_ . status)
+ (status:exit-val status))))
+ (eq? #t result))))))))
+
+(test-equal "scandir*, ENOENT"
+ ENOENT
+ (catch 'system-error
+ (lambda ()
+ (scandir* "/does/not/exist"))
+ (lambda args
+ (system-error-errno args))))
+
+(test-equal "scandir*, ASCII file names"
+ (scandir (dirname (search-path %load-path "guix/base32.scm"))
+ (const #t) string<?)
+ (match (scandir* (dirname (search-path %load-path "guix/base32.scm")))
+ (((names . properties) ...)
+ names)))
+
+(test-equal "scandir*, UTF-8 file names"
+ '("." ".." "α" "λ")
+ (call-with-temporary-directory
+ (lambda (directory)
+ ;; Wrap 'creat' to make sure that we really pass a UTF-8-encoded file
+ ;; name to the system call.
+ (let ((creat (pointer->procedure int
+ (dynamic-func "creat" (dynamic-link))
+ (list '* int))))
+ (creat (string->pointer (string-append directory "/α")
+ "UTF-8")
+ #o644)
+ (creat (string->pointer (string-append directory "/λ")
+ "UTF-8")
+ #o644)
+ (let ((locale (setlocale LC_ALL)))
+ (dynamic-wind
+ (lambda ()
+ ;; Make sure that even in a C locale we get the right result.
+ (setlocale LC_ALL "C"))
+ (lambda ()
+ (match (scandir* directory)
+ (((names . properties) ...)
+ names)))
+ (lambda ()
+ (setlocale LC_ALL locale))))))))
+
+(test-assert "scandir*, properties"
+ (let ((directory (dirname (search-path %load-path "guix/base32.scm"))))
+ (every (lambda (entry name)
+ (match entry
+ ((name2 . properties)
+ (and (string=? name2 name)
+ (let* ((full (string-append directory "/" name))
+ (stat (lstat full))
+ (inode (assoc-ref properties 'inode))
+ (type (assoc-ref properties 'type)))
+ (and (= inode (stat:ino stat))
+ (or (eq? type 'unknown)
+ (eq? type (stat:type stat)))))))))
+ (scandir* directory)
+ (scandir directory (const #t) string<?))))
+
+(false-if-exception (delete-file temp-file))
+(test-equal "fcntl-flock wait"
+ 42 ; the child's exit status
+ (let ((file (open-file temp-file "w0b")))
+ ;; Acquire an exclusive lock.
+ (fcntl-flock file 'write-lock)
+ (match (primitive-fork)
+ (0
+ (dynamic-wind
+ (const #t)
+ (lambda ()
+ ;; Reopen FILE read-only so we can have a read lock.
+ (let ((file (open-file temp-file "r0b")))
+ ;; Wait until we can acquire the lock.
+ (fcntl-flock file 'read-lock)
+ (primitive-exit (read file)))
+ (primitive-exit 1))
+ (lambda ()
+ (primitive-exit 2))))
+ (pid
+ ;; Write garbage and wait.
+ (display "hello, world!" file)
+ (force-output file)
+ (sleep 1)
+
+ ;; Write the real answer.
+ (seek file 0 SEEK_SET)
+ (truncate-file file 0)
+ (write 42 file)
+ (force-output file)
+
+ ;; Unlock, which should let the child continue.
+ (fcntl-flock file 'unlock)
+
+ (match (waitpid pid)
+ ((_ . status)
+ (let ((result (status:exit-val status)))
+ (close-port file)
+ result)))))))
+
+(test-equal "fcntl-flock non-blocking"
+ EAGAIN ; the child's exit status
+ (match (pipe)
+ ((input . output)
+ (match (primitive-fork)
+ (0
+ (dynamic-wind
+ (const #t)
+ (lambda ()
+ (close-port output)
+
+ ;; Wait for the green light.
+ (read-char input)
+
+ ;; Open FILE read-only so we can have a read lock.
+ (let ((file (open-file temp-file "w0")))
+ (catch 'flock-error
+ (lambda ()
+ ;; This attempt should throw EAGAIN.
+ (fcntl-flock file 'write-lock #:wait? #f))
+ (lambda (key errno)
+ (primitive-exit (pk 'errno errno)))))
+ (primitive-exit -1))
+ (lambda ()
+ (primitive-exit -2))))
+ (pid
+ (close-port input)
+ (let ((file (open-file temp-file "w0")))
+ ;; Acquire an exclusive lock.
+ (fcntl-flock file 'write-lock)
+
+ ;; Tell the child to continue.
+ (write 'green-light output)
+ (force-output output)
+
+ (match (waitpid pid)
+ ((_ . status)
+ (let ((result (status:exit-val status)))
+ (fcntl-flock file 'unlock)
+ (close-port file)
+ result)))))))))
+
+(test-equal "set-thread-name"
+ "Syscall Test"
+ (let ((name (thread-name)))
+ (set-thread-name "Syscall Test")
+ (let ((new-name (thread-name)))
+ (set-thread-name name)
+ new-name)))
+
+(test-assert "all-network-interface-names"
+ (match (all-network-interface-names)
(((? string? names) ..1)
(member "lo" names))))
-(test-assert "network-interfaces"
- (match (network-interfaces)
+(test-assert "network-interface-names"
+ (match (network-interface-names)
(((? string? names) ..1)
- (lset<= string=? names (all-network-interfaces)))))
+ (lset<= string=? names (all-network-interface-names)))))
(test-assert "network-interface-flags"
(let* ((sock (socket AF_INET SOCK_STREAM 0))
(lambda args
(system-error-errno args)))))
+(test-equal "loopback-network-interface-running?"
+ ENODEV
+ (and (network-interface-running? "lo")
+ (catch 'system-error
+ (lambda ()
+ (network-interface-running? "nonexistent")
+ #f)
+ (lambda args
+ (system-error-errno args)))))
+
(test-skip (if (zero? (getuid)) 1 0))
-(test-equal "set-network-interface-flags"
- EPERM
+(test-assert "set-network-interface-flags"
(let ((sock (socket AF_INET SOCK_STREAM 0)))
(catch 'system-error
(lambda ()
(set-network-interface-flags sock "lo" IFF_UP))
(lambda args
(close-port sock)
- (system-error-errno args)))))
+ ;; We get EPERM with Linux 3.18ish and EACCES with 2.6.32.
+ (memv (system-error-errno args) (list EPERM EACCES))))))
(test-equal "network-interface-address lo"
(make-socket-address AF_INET (inet-pton AF_INET "127.0.0.1") 0)
(close-port sock)
addr))
-(test-equal "set-network-interface-address"
- EPERM
+(test-skip (if (zero? (getuid)) 1 0))
+(test-assert "set-network-interface-address"
(let ((sock (socket AF_INET SOCK_STREAM 0)))
(catch 'system-error
(lambda ()
0)))
(lambda args
(close-port sock)
- (system-error-errno args)))))
+ ;; We get EPERM with Linux 3.18ish and EACCES with 2.6.32.
+ (memv (system-error-errno args) (list EPERM EACCES))))))
+
+(test-equal "network-interface-netmask lo"
+ (make-socket-address AF_INET (inet-pton AF_INET "255.0.0.0") 0)
+ (let* ((sock (socket AF_INET SOCK_STREAM 0))
+ (addr (network-interface-netmask sock "lo")))
+ (close-port sock)
+ addr))
+
+(test-skip (if (zero? (getuid)) 1 0))
+(test-assert "set-network-interface-netmask"
+ (let ((sock (socket AF_INET SOCK_STREAM 0)))
+ (catch 'system-error
+ (lambda ()
+ (set-network-interface-netmask sock "nonexistent"
+ (make-socket-address
+ AF_INET
+ (inet-pton AF_INET "255.0.0.0")
+ 0)))
+ (lambda args
+ (close-port sock)
+ (memv (system-error-errno args) (list EPERM EACCES))))))
+
+(test-equal "network-interfaces returns one or more interfaces"
+ '(#t #t #t)
+ (match (network-interfaces)
+ ((interfaces ..1)
+ (list (every interface? interfaces)
+ (every string? (map interface-name interfaces))
+ (every (lambda (sockaddr)
+ ;; Sometimes interfaces have no associated address.
+ (or (vector? sockaddr)
+ (not sockaddr)))
+ (map interface-address interfaces))))))
+
+(test-equal "network-interfaces returns \"lo\""
+ (list #t (make-socket-address AF_INET (inet-pton AF_INET "127.0.0.1") 0))
+ (match (filter (lambda (interface)
+ (string=? "lo" (interface-name interface)))
+ (network-interfaces))
+ ((loopbacks ..1)
+ (list (every (lambda (lo)
+ (not (zero? (logand IFF_LOOPBACK (interface-flags lo)))))
+ loopbacks)
+ (match (find (lambda (lo)
+ (= AF_INET (sockaddr:fam (interface-address lo))))
+ loopbacks)
+ (#f #f)
+ (lo (interface-address lo)))))))
+
+(test-skip (if (zero? (getuid)) 1 0))
+(test-assert "add-network-route/gateway"
+ (let ((sock (socket AF_INET SOCK_STREAM 0))
+ (gateway (make-socket-address AF_INET
+ (inet-pton AF_INET "192.168.0.1")
+ 0)))
+ (catch 'system-error
+ (lambda ()
+ (add-network-route/gateway sock gateway))
+ (lambda args
+ (close-port sock)
+ (memv (system-error-errno args) (list EPERM EACCES))))))
+
+(test-skip (if (zero? (getuid)) 1 0))
+(test-assert "delete-network-route"
+ (let ((sock (socket AF_INET SOCK_STREAM 0))
+ (destination (make-socket-address AF_INET INADDR_ANY 0)))
+ (catch 'system-error
+ (lambda ()
+ (delete-network-route sock destination))
+ (lambda args
+ (close-port sock)
+ (memv (system-error-errno args) (list EPERM EACCES))))))
+
+(test-equal "tcgetattr ENOTTY"
+ ENOTTY
+ (catch 'system-error
+ (lambda ()
+ (call-with-input-file "/dev/null"
+ (lambda (port)
+ (tcgetattr (fileno port)))))
+ (compose system-error-errno list)))
+
+(test-skip (if (and (file-exists? "/proc/self/fd/0")
+ (string-prefix? "/dev/pts/" (readlink "/proc/self/fd/0")))
+ 0
+ 2))
+
+(test-assert "tcgetattr"
+ (let ((termios (tcgetattr 0)))
+ (and (termios? termios)
+ (> (termios-input-speed termios) 0)
+ (> (termios-output-speed termios) 0))))
+
+(test-assert "tcsetattr"
+ (let ((first (tcgetattr 0)))
+ (tcsetattr 0 (tcsetattr-action TCSANOW) first)
+ (equal? first (tcgetattr 0))))
+
+(test-assert "terminal-window-size ENOTTY"
+ (call-with-input-file "/dev/null"
+ (lambda (port)
+ (catch 'system-error
+ (lambda ()
+ (terminal-window-size port))
+ (lambda args
+ ;; Accept EINVAL, which some old Linux versions might return.
+ (memv (system-error-errno args)
+ (list ENOTTY EINVAL)))))))
+
+(test-assert "terminal-columns"
+ (> (terminal-columns) 0))
+
+(test-assert "terminal-columns non-file port"
+ (> (terminal-columns (open-input-string "Join us now, share the software!"))
+ 0))
+
+(test-assert "terminal-rows"
+ (> (terminal-rows) 0))
+
+(test-assert "utmpx-entries"
+ (match (utmpx-entries)
+ (((? utmpx? entries) ...)
+ (every (lambda (entry)
+ (match (utmpx-user entry)
+ ((? string?)
+ ;; Ensure we have a valid PID for those entries where it
+ ;; makes sense.
+ (or (not (memv (utmpx-login-type entry)
+ (list (login-type INIT_PROCESS)
+ (login-type LOGIN_PROCESS)
+ (login-type USER_PROCESS))))
+ (> (utmpx-pid entry) 0)))
+ (#f ;might be DEAD_PROCESS
+ #t)))
+ entries))))
+
+(test-assert "read-utmpx, EOF"
+ (eof-object? (read-utmpx (%make-void-port "r"))))
+
+(unless (access? "/var/run/utmpx" O_RDONLY)
+ (test-skip 1))
+(test-assert "read-utmpx"
+ (let ((result (call-with-input-file "/var/run/utmpx" read-utmpx)))
+ (or (utmpx? result) (eof-object? result))))
+
+(when (zero? (getuid))
+ (test-skip 1))
+(test-equal "add-to-entropy-count"
+ EPERM
+ (call-with-output-file "/dev/urandom"
+ (lambda (port)
+ (catch 'system-error
+ (lambda ()
+ (add-to-entropy-count port 77)
+ #f)
+ (lambda args
+ (system-error-errno args))))))
(test-end)
-\f
-(exit (= (test-runner-fail-count (test-runner-current)) 0))
+(false-if-exception (delete-file temp-file))
HCoop / jackhill / guix / guix.git / blobdiff