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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-06-07 02:03:45 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-06-07 13:35:54 +0200 |
commit | d6d74ec16c77126c59db264ebfa04d08d5b4c5c0 (patch) | |
tree | 95fded09b6a9d8ce35273d43c3f8e3d960bd0554 /sysdeps/pthread/tst-setuid3.c | |
parent | be22a151f3e2c2e4b9127d4fa30b269f30a7ea2e (diff) | |
download | glibc-d6d74ec16c77126c59db264ebfa04d08d5b4c5c0.tar.gz glibc-d6d74ec16c77126c59db264ebfa04d08d5b4c5c0.tar.xz glibc-d6d74ec16c77126c59db264ebfa04d08d5b4c5c0.zip |
htl: Enable more tests
* htl/Makefile: Remove rules adding libpthread.so and libpthread.a to link lines. * nptl/Makefile: Move rules adding libpthread.so and libpthread.a to link lines to... * sysdeps/pthread/Makefile: ... here. * nptl/eintr.c, tst-align.c tst-align3.c tst-atfork1.c tst-backtrace1.c tst-bad-schedattr.c tst-cancel-self-canceltype.c tst-cancel-self-cleanup.c tst-cancel-self-testcancel.c tst-cancel1.c tst-cancel10.c tst-cancel12.c tst-cancel14.c tst-cancel15.c tst-cancel18.c tst-cancel19.c tst-cancel2.c tst-cancel22.c tst-cancel23.c tst-cancel26.c tst-cancel27.c tst-cancel28.c tst-cancel3.c tst-cancel8.c tst-cancelx1.c tst-cancelx10.c tst-cancelx12.c tst-cancelx14.c tst-cancelx15.c tst-cancelx18.c tst-cancelx2.c tst-cancelx3.c tst-cancelx8.c tst-cleanup0.c tst-cleanup0.expect tst-cleanup1.c tst-cleanup2.c tst-cleanup3.c tst-cleanupx0.c tst-cleanupx0.expect tst-cleanupx1.c tst-cleanupx2.c tst-cleanupx3.c tst-clock1.c tst-create-detached.c tst-detach1.c tst-eintr2.c tst-eintr3.c tst-eintr4.c tst-eintr5.c tst-exec1.c tst-exec2.c tst-exec3.c tst-exit1.c tst-exit2.c tst-exit3.c tst-flock1.c tst-fork1.c tst-fork2.c tst-fork3.c tst-fork4.c tst-getpid3.c tst-kill1.c tst-kill2.c tst-kill3.c tst-kill4.c tst-kill5.c tst-kill6.c tst-locale1.c tst-locale2.c tst-memstream.c tst-popen1.c tst-raise1.c tst-sem5.c tst-setuid3.c tst-signal4.c tst-signal5.c tst-signal6.c tst-signal8.c tst-stack1.c tst-stdio1.c tst-stdio2.c tst-sysconf.c tst-tls1.c tst-tls2.c tst-tsd1.c tst-tsd2.c tst-tsd5.c tst-tsd6.c tst-umask1.c tst-unload.c tst-unwind-thread.c tst-vfork1.c tst-vfork1x.c tst-vfork2.c tst-vfork2x.c: Move tests to... * sysdeps/pthread: ... here. Rename tst-popen1.c -> tst-pt-popen1.c tst-align.c -> tst-pt-align.c tst-align3.c -> tst-pt-align3.c tst-sysconf.c -> tst-pt-sysconf.c tst-tls1.c -> tst-pt-tls1.c tst-tls2.c -> tst-pt-tls2.c tst-vfork1.c -> tst-pt-vfork1.c tst-vfork2.c -> tst-pt-vfork2.c to avoid conflicting with libio/tst-popen1.c, elf/tst-align.c, posix/tst-sysconf.c, elf/tst-tls1.c, elf/tst-tls2.c, posix/tst-vfork1.c, posix/tst-vfork2.c. * nptl/Makefile: Move corresponding tests references and special rules to... * sysdeps/pthread/Makefile: ... here. * sysdeps/pthread/tst-stack1.c (do_test): Do not clamp stack size to PTHREAD_STACK_MIN if not defined. Tested on linux-x86_64 and hurd-i386
Diffstat (limited to 'sysdeps/pthread/tst-setuid3.c')
-rw-r--r-- | sysdeps/pthread/tst-setuid3.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-setuid3.c b/sysdeps/pthread/tst-setuid3.c new file mode 100644 index 0000000000..261c265664 --- /dev/null +++ b/sysdeps/pthread/tst-setuid3.c @@ -0,0 +1,118 @@ +/* Copyright (C) 2014-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <stdio.h> +#include <errno.h> +#include <pthread.h> +#include <stdbool.h> +#include <unistd.h> + +/* The test must run under a non-privileged user ID. */ +static const uid_t test_uid = 1; + +static pthread_barrier_t barrier1; +static pthread_barrier_t barrier2; + +#define FAIL(fmt, ...) \ + do { printf ("FAIL: " fmt "\n", __VA_ARGS__); _exit (1); } while (0) + +#define FAIL_ERR(fmt, ...) \ + do { printf ("FAIL: " fmt ": %m\n", __VA_ARGS__); _exit (1); } while (0) + +/* True if x is not a successful return code from pthread_barrier_wait. */ +static inline bool +is_invalid_barrier_ret (int x) +{ + return x != 0 && x != PTHREAD_BARRIER_SERIAL_THREAD; +} + +static void * +thread_func (void *ctx __attribute__ ((unused))) +{ + int ret = pthread_barrier_wait (&barrier1); + if (is_invalid_barrier_ret (ret)) + FAIL ("pthread_barrier_wait (barrier1) (on thread): %d", ret); + ret = pthread_barrier_wait (&barrier2); + if (is_invalid_barrier_ret (ret)) + FAIL ("pthread_barrier_wait (barrier2) (on thread): %d", ret); + return NULL; +} + +static void +setuid_failure (int phase) +{ + int ret = setuid (0); + switch (ret) + { + case 0: + FAIL ("setuid succeeded unexpectedly in phase %d", phase); + case -1: + if (errno != EPERM) + FAIL_ERR ("setuid phase %d", phase); + break; + default: + FAIL ("invalid setuid return value in phase %d: %d", phase, ret); + } +} + +static int +do_test (void) +{ + if (getuid () == 0) + if (setuid (test_uid) != 0) + FAIL_ERR ("setuid (%u)", (unsigned) test_uid); + if (setuid (getuid ())) + FAIL_ERR ("setuid (%s)", "getuid ()"); + setuid_failure (1); + + int ret = pthread_barrier_init (&barrier1, NULL, 2); + if (ret != 0) + FAIL ("pthread_barrier_init (barrier1): %d", ret); + ret = pthread_barrier_init (&barrier2, NULL, 2); + if (ret != 0) + FAIL ("pthread_barrier_init (barrier2): %d", ret); + + pthread_t thread; + ret = pthread_create (&thread, NULL, thread_func, NULL); + if (ret != 0) + FAIL ("pthread_create: %d", ret); + + /* Ensure that the thread is running properly. */ + ret = pthread_barrier_wait (&barrier1); + if (is_invalid_barrier_ret (ret)) + FAIL ("pthread_barrier_wait (barrier1): %d", ret); + + setuid_failure (2); + + /* Check success case. */ + if (setuid (getuid ()) != 0) + FAIL_ERR ("setuid (%s)", "getuid ()"); + + /* Shutdown. */ + ret = pthread_barrier_wait (&barrier2); + if (is_invalid_barrier_ret (ret)) + FAIL ("pthread_barrier_wait (barrier2): %d", ret); + + ret = pthread_join (thread, NULL); + if (ret != 0) + FAIL ("pthread_join: %d", ret); + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |