diff options
Diffstat (limited to 'tools/testing/selftests/openat2/resolve_test.c')
| -rw-r--r-- | tools/testing/selftests/openat2/resolve_test.c | 523 |
1 files changed, 0 insertions, 523 deletions
diff --git a/tools/testing/selftests/openat2/resolve_test.c b/tools/testing/selftests/openat2/resolve_test.c deleted file mode 100644 index bbafad440893..000000000000 --- a/tools/testing/selftests/openat2/resolve_test.c +++ /dev/null @@ -1,523 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Author: Aleksa Sarai <cyphar@cyphar.com> - * Copyright (C) 2018-2019 SUSE LLC. - */ - -#define _GNU_SOURCE -#include <fcntl.h> -#include <sched.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/mount.h> -#include <stdlib.h> -#include <stdbool.h> -#include <string.h> - -#include "../kselftest.h" -#include "helpers.h" - -/* - * Construct a test directory with the following structure: - * - * root/ - * |-- procexe -> /proc/self/exe - * |-- procroot -> /proc/self/root - * |-- root/ - * |-- mnt/ [mountpoint] - * | |-- self -> ../mnt/ - * | `-- absself -> /mnt/ - * |-- etc/ - * | `-- passwd - * |-- creatlink -> /newfile3 - * |-- reletc -> etc/ - * |-- relsym -> etc/passwd - * |-- absetc -> /etc/ - * |-- abssym -> /etc/passwd - * |-- abscheeky -> /cheeky - * `-- cheeky/ - * |-- absself -> / - * |-- self -> ../../root/ - * |-- garbageself -> /../../root/ - * |-- passwd -> ../cheeky/../cheeky/../etc/../etc/passwd - * |-- abspasswd -> /../cheeky/../cheeky/../etc/../etc/passwd - * |-- dotdotlink -> ../../../../../../../../../../../../../../etc/passwd - * `-- garbagelink -> /../../../../../../../../../../../../../../etc/passwd - */ -int setup_testdir(void) -{ - int dfd, tmpfd; - char dirname[] = "/tmp/ksft-openat2-testdir.XXXXXX"; - - /* Unshare and make /tmp a new directory. */ - E_unshare(CLONE_NEWNS); - E_mount("", "/tmp", "", MS_PRIVATE, ""); - - /* Make the top-level directory. */ - if (!mkdtemp(dirname)) - ksft_exit_fail_msg("setup_testdir: failed to create tmpdir\n"); - dfd = open(dirname, O_PATH | O_DIRECTORY); - if (dfd < 0) - ksft_exit_fail_msg("setup_testdir: failed to open tmpdir\n"); - - /* A sub-directory which is actually used for tests. */ - E_mkdirat(dfd, "root", 0755); - tmpfd = openat(dfd, "root", O_PATH | O_DIRECTORY); - if (tmpfd < 0) - ksft_exit_fail_msg("setup_testdir: failed to open tmpdir\n"); - close(dfd); - dfd = tmpfd; - - E_symlinkat("/proc/self/exe", dfd, "procexe"); - E_symlinkat("/proc/self/root", dfd, "procroot"); - E_mkdirat(dfd, "root", 0755); - - /* There is no mountat(2), so use chdir. */ - E_mkdirat(dfd, "mnt", 0755); - E_fchdir(dfd); - E_mount("tmpfs", "./mnt", "tmpfs", MS_NOSUID | MS_NODEV, ""); - E_symlinkat("../mnt/", dfd, "mnt/self"); - E_symlinkat("/mnt/", dfd, "mnt/absself"); - - E_mkdirat(dfd, "etc", 0755); - E_touchat(dfd, "etc/passwd"); - - E_symlinkat("/newfile3", dfd, "creatlink"); - E_symlinkat("etc/", dfd, "reletc"); - E_symlinkat("etc/passwd", dfd, "relsym"); - E_symlinkat("/etc/", dfd, "absetc"); - E_symlinkat("/etc/passwd", dfd, "abssym"); - E_symlinkat("/cheeky", dfd, "abscheeky"); - - E_mkdirat(dfd, "cheeky", 0755); - - E_symlinkat("/", dfd, "cheeky/absself"); - E_symlinkat("../../root/", dfd, "cheeky/self"); - E_symlinkat("/../../root/", dfd, "cheeky/garbageself"); - - E_symlinkat("../cheeky/../etc/../etc/passwd", dfd, "cheeky/passwd"); - E_symlinkat("/../cheeky/../etc/../etc/passwd", dfd, "cheeky/abspasswd"); - - E_symlinkat("../../../../../../../../../../../../../../etc/passwd", - dfd, "cheeky/dotdotlink"); - E_symlinkat("/../../../../../../../../../../../../../../etc/passwd", - dfd, "cheeky/garbagelink"); - - return dfd; -} - -struct basic_test { - const char *name; - const char *dir; - const char *path; - struct open_how how; - bool pass; - union { - int err; - const char *path; - } out; -}; - -#define NUM_OPENAT2_OPATH_TESTS 88 - -void test_openat2_opath_tests(void) -{ - int rootfd, hardcoded_fd; - char *procselfexe, *hardcoded_fdpath; - - E_asprintf(&procselfexe, "/proc/%d/exe", getpid()); - rootfd = setup_testdir(); - - hardcoded_fd = open("/dev/null", O_RDONLY); - E_assert(hardcoded_fd >= 0, "open fd to hardcode"); - E_asprintf(&hardcoded_fdpath, "self/fd/%d", hardcoded_fd); - - struct basic_test tests[] = { - /** RESOLVE_BENEATH **/ - /* Attempts to cross dirfd should be blocked. */ - { .name = "[beneath] jump to /", - .path = "/", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] absolute link to $root", - .path = "cheeky/absself", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] chained absolute links to $root", - .path = "abscheeky/absself", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] jump outside $root", - .path = "..", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] temporary jump outside $root", - .path = "../root/", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] symlink temporary jump outside $root", - .path = "cheeky/self", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] chained symlink temporary jump outside $root", - .path = "abscheeky/self", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] garbage links to $root", - .path = "cheeky/garbageself", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] chained garbage links to $root", - .path = "abscheeky/garbageself", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - /* Only relative paths that stay inside dirfd should work. */ - { .name = "[beneath] ordinary path to 'root'", - .path = "root", .how.resolve = RESOLVE_BENEATH, - .out.path = "root", .pass = true }, - { .name = "[beneath] ordinary path to 'etc'", - .path = "etc", .how.resolve = RESOLVE_BENEATH, - .out.path = "etc", .pass = true }, - { .name = "[beneath] ordinary path to 'etc/passwd'", - .path = "etc/passwd", .how.resolve = RESOLVE_BENEATH, - .out.path = "etc/passwd", .pass = true }, - { .name = "[beneath] relative symlink inside $root", - .path = "relsym", .how.resolve = RESOLVE_BENEATH, - .out.path = "etc/passwd", .pass = true }, - { .name = "[beneath] chained-'..' relative symlink inside $root", - .path = "cheeky/passwd", .how.resolve = RESOLVE_BENEATH, - .out.path = "etc/passwd", .pass = true }, - { .name = "[beneath] absolute symlink component outside $root", - .path = "abscheeky/passwd", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] absolute symlink target outside $root", - .path = "abssym", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] absolute path outside $root", - .path = "/etc/passwd", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] cheeky absolute path outside $root", - .path = "cheeky/abspasswd", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] chained cheeky absolute path outside $root", - .path = "abscheeky/abspasswd", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - /* Tricky paths should fail. */ - { .name = "[beneath] tricky '..'-chained symlink outside $root", - .path = "cheeky/dotdotlink", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] tricky absolute + '..'-chained symlink outside $root", - .path = "abscheeky/dotdotlink", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] tricky garbage link outside $root", - .path = "cheeky/garbagelink", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - { .name = "[beneath] tricky absolute + garbage link outside $root", - .path = "abscheeky/garbagelink", .how.resolve = RESOLVE_BENEATH, - .out.err = -EXDEV, .pass = false }, - - /** RESOLVE_IN_ROOT **/ - /* All attempts to cross the dirfd will be scoped-to-root. */ - { .name = "[in_root] jump to /", - .path = "/", .how.resolve = RESOLVE_IN_ROOT, - .out.path = NULL, .pass = true }, - { .name = "[in_root] absolute symlink to /root", - .path = "cheeky/absself", .how.resolve = RESOLVE_IN_ROOT, - .out.path = NULL, .pass = true }, - { .name = "[in_root] chained absolute symlinks to /root", - .path = "abscheeky/absself", .how.resolve = RESOLVE_IN_ROOT, - .out.path = NULL, .pass = true }, - { .name = "[in_root] '..' at root", - .path = "..", .how.resolve = RESOLVE_IN_ROOT, - .out.path = NULL, .pass = true }, - { .name = "[in_root] '../root' at root", - .path = "../root/", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "root", .pass = true }, - { .name = "[in_root] relative symlink containing '..' above root", - .path = "cheeky/self", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "root", .pass = true }, - { .name = "[in_root] garbage link to /root", - .path = "cheeky/garbageself", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "root", .pass = true }, - { .name = "[in_root] chained garbage links to /root", - .path = "abscheeky/garbageself", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "root", .pass = true }, - { .name = "[in_root] relative path to 'root'", - .path = "root", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "root", .pass = true }, - { .name = "[in_root] relative path to 'etc'", - .path = "etc", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc", .pass = true }, - { .name = "[in_root] relative path to 'etc/passwd'", - .path = "etc/passwd", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] relative symlink to 'etc/passwd'", - .path = "relsym", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] chained-'..' relative symlink to 'etc/passwd'", - .path = "cheeky/passwd", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] chained-'..' absolute + relative symlink to 'etc/passwd'", - .path = "abscheeky/passwd", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] absolute symlink to 'etc/passwd'", - .path = "abssym", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] absolute path 'etc/passwd'", - .path = "/etc/passwd", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] cheeky absolute path 'etc/passwd'", - .path = "cheeky/abspasswd", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] chained cheeky absolute path 'etc/passwd'", - .path = "abscheeky/abspasswd", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] tricky '..'-chained symlink outside $root", - .path = "cheeky/dotdotlink", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] tricky absolute + '..'-chained symlink outside $root", - .path = "abscheeky/dotdotlink", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] tricky absolute path + absolute + '..'-chained symlink outside $root", - .path = "/../../../../abscheeky/dotdotlink", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] tricky garbage link outside $root", - .path = "cheeky/garbagelink", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] tricky absolute + garbage link outside $root", - .path = "abscheeky/garbagelink", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - { .name = "[in_root] tricky absolute path + absolute + garbage link outside $root", - .path = "/../../../../abscheeky/garbagelink", .how.resolve = RESOLVE_IN_ROOT, - .out.path = "etc/passwd", .pass = true }, - /* O_CREAT should handle trailing symlinks correctly. */ - { .name = "[in_root] O_CREAT of relative path inside $root", - .path = "newfile1", .how.flags = O_CREAT, - .how.mode = 0700, - .how.resolve = RESOLVE_IN_ROOT, - .out.path = "newfile1", .pass = true }, - { .name = "[in_root] O_CREAT of absolute path", - .path = "/newfile2", .how.flags = O_CREAT, - .how.mode = 0700, - .how.resolve = RESOLVE_IN_ROOT, - .out.path = "newfile2", .pass = true }, - { .name = "[in_root] O_CREAT of tricky symlink outside root", - .path = "/creatlink", .how.flags = O_CREAT, - .how.mode = 0700, - .how.resolve = RESOLVE_IN_ROOT, - .out.path = "newfile3", .pass = true }, - - /** RESOLVE_NO_XDEV **/ - /* Crossing *down* into a mountpoint is disallowed. */ - { .name = "[no_xdev] cross into $mnt", - .path = "mnt", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - { .name = "[no_xdev] cross into $mnt/", - .path = "mnt/", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - { .name = "[no_xdev] cross into $mnt/.", - .path = "mnt/.", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - /* Crossing *up* out of a mountpoint is disallowed. */ - { .name = "[no_xdev] goto mountpoint root", - .dir = "mnt", .path = ".", .how.resolve = RESOLVE_NO_XDEV, - .out.path = "mnt", .pass = true }, - { .name = "[no_xdev] cross up through '..'", - .dir = "mnt", .path = "..", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - { .name = "[no_xdev] temporary cross up through '..'", - .dir = "mnt", .path = "../mnt", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - { .name = "[no_xdev] temporary relative symlink cross up", - .dir = "mnt", .path = "self", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - { .name = "[no_xdev] temporary absolute symlink cross up", - .dir = "mnt", .path = "absself", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - /* Jumping to "/" is ok, but later components cannot cross. */ - { .name = "[no_xdev] jump to / directly", - .dir = "mnt", .path = "/", .how.resolve = RESOLVE_NO_XDEV, - .out.path = "/", .pass = true }, - { .name = "[no_xdev] jump to / (from /) directly", - .dir = "/", .path = "/", .how.resolve = RESOLVE_NO_XDEV, - .out.path = "/", .pass = true }, - { .name = "[no_xdev] jump to / then proc", - .path = "/proc/1", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - { .name = "[no_xdev] jump to / then tmp", - .path = "/tmp", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - /* Magic-links are blocked since they can switch vfsmounts. */ - { .name = "[no_xdev] cross through magic-link to self/root", - .dir = "/proc", .path = "self/root", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - { .name = "[no_xdev] cross through magic-link to self/cwd", - .dir = "/proc", .path = "self/cwd", .how.resolve = RESOLVE_NO_XDEV, - .out.err = -EXDEV, .pass = false }, - /* Except magic-link jumps inside the same vfsmount. */ - { .name = "[no_xdev] jump through magic-link to same procfs", - .dir = "/proc", .path = hardcoded_fdpath, .how.resolve = RESOLVE_NO_XDEV, - .out.path = "/proc", .pass = true, }, - - /** RESOLVE_NO_MAGICLINKS **/ - /* Regular symlinks should work. */ - { .name = "[no_magiclinks] ordinary relative symlink", - .path = "relsym", .how.resolve = RESOLVE_NO_MAGICLINKS, - .out.path = "etc/passwd", .pass = true }, - /* Magic-links should not work. */ - { .name = "[no_magiclinks] symlink to magic-link", - .path = "procexe", .how.resolve = RESOLVE_NO_MAGICLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_magiclinks] normal path to magic-link", - .path = "/proc/self/exe", .how.resolve = RESOLVE_NO_MAGICLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_magiclinks] normal path to magic-link with O_NOFOLLOW", - .path = "/proc/self/exe", .how.flags = O_NOFOLLOW, - .how.resolve = RESOLVE_NO_MAGICLINKS, - .out.path = procselfexe, .pass = true }, - { .name = "[no_magiclinks] symlink to magic-link path component", - .path = "procroot/etc", .how.resolve = RESOLVE_NO_MAGICLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_magiclinks] magic-link path component", - .path = "/proc/self/root/etc", .how.resolve = RESOLVE_NO_MAGICLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_magiclinks] magic-link path component with O_NOFOLLOW", - .path = "/proc/self/root/etc", .how.flags = O_NOFOLLOW, - .how.resolve = RESOLVE_NO_MAGICLINKS, - .out.err = -ELOOP, .pass = false }, - - /** RESOLVE_NO_SYMLINKS **/ - /* Normal paths should work. */ - { .name = "[no_symlinks] ordinary path to '.'", - .path = ".", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.path = NULL, .pass = true }, - { .name = "[no_symlinks] ordinary path to 'root'", - .path = "root", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.path = "root", .pass = true }, - { .name = "[no_symlinks] ordinary path to 'etc'", - .path = "etc", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.path = "etc", .pass = true }, - { .name = "[no_symlinks] ordinary path to 'etc/passwd'", - .path = "etc/passwd", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.path = "etc/passwd", .pass = true }, - /* Regular symlinks are blocked. */ - { .name = "[no_symlinks] relative symlink target", - .path = "relsym", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_symlinks] relative symlink component", - .path = "reletc/passwd", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_symlinks] absolute symlink target", - .path = "abssym", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_symlinks] absolute symlink component", - .path = "absetc/passwd", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_symlinks] cheeky garbage link", - .path = "cheeky/garbagelink", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_symlinks] cheeky absolute + garbage link", - .path = "abscheeky/garbagelink", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_symlinks] cheeky absolute + absolute symlink", - .path = "abscheeky/absself", .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - /* Trailing symlinks with NO_FOLLOW. */ - { .name = "[no_symlinks] relative symlink with O_NOFOLLOW", - .path = "relsym", .how.flags = O_NOFOLLOW, - .how.resolve = RESOLVE_NO_SYMLINKS, - .out.path = "relsym", .pass = true }, - { .name = "[no_symlinks] absolute symlink with O_NOFOLLOW", - .path = "abssym", .how.flags = O_NOFOLLOW, - .how.resolve = RESOLVE_NO_SYMLINKS, - .out.path = "abssym", .pass = true }, - { .name = "[no_symlinks] trailing symlink with O_NOFOLLOW", - .path = "cheeky/garbagelink", .how.flags = O_NOFOLLOW, - .how.resolve = RESOLVE_NO_SYMLINKS, - .out.path = "cheeky/garbagelink", .pass = true }, - { .name = "[no_symlinks] multiple symlink components with O_NOFOLLOW", - .path = "abscheeky/absself", .how.flags = O_NOFOLLOW, - .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - { .name = "[no_symlinks] multiple symlink (and garbage link) components with O_NOFOLLOW", - .path = "abscheeky/garbagelink", .how.flags = O_NOFOLLOW, - .how.resolve = RESOLVE_NO_SYMLINKS, - .out.err = -ELOOP, .pass = false }, - }; - - BUILD_BUG_ON(ARRAY_LEN(tests) != NUM_OPENAT2_OPATH_TESTS); - - for (int i = 0; i < ARRAY_LEN(tests); i++) { - int dfd, fd; - char *fdpath = NULL; - bool failed; - void (*resultfn)(const char *msg, ...) = ksft_test_result_pass; - struct basic_test *test = &tests[i]; - - if (!openat2_supported) { - ksft_print_msg("openat2(2) unsupported\n"); - resultfn = ksft_test_result_skip; - goto skip; - } - - /* Auto-set O_PATH. */ - if (!(test->how.flags & O_CREAT)) - test->how.flags |= O_PATH; - - if (test->dir) - dfd = openat(rootfd, test->dir, O_PATH | O_DIRECTORY); - else - dfd = dup(rootfd); - E_assert(dfd, "failed to openat root '%s': %m", test->dir); - - E_dup2(dfd, hardcoded_fd); - - fd = sys_openat2(dfd, test->path, &test->how); - if (test->pass) - failed = (fd < 0 || !fdequal(fd, rootfd, test->out.path)); - else - failed = (fd != test->out.err); - if (fd >= 0) { - fdpath = fdreadlink(fd); - close(fd); - } - close(dfd); - - if (failed) { - resultfn = ksft_test_result_fail; - - ksft_print_msg("openat2 unexpectedly returned "); - if (fdpath) - ksft_print_msg("%d['%s']\n", fd, fdpath); - else - ksft_print_msg("%d (%s)\n", fd, strerror(-fd)); - } - -skip: - if (test->pass) - resultfn("%s gives path '%s'\n", test->name, - test->out.path ?: "."); - else - resultfn("%s fails with %d (%s)\n", test->name, - test->out.err, strerror(-test->out.err)); - - fflush(stdout); - free(fdpath); - } - - free(procselfexe); - close(rootfd); - - free(hardcoded_fdpath); - close(hardcoded_fd); -} - -#define NUM_TESTS NUM_OPENAT2_OPATH_TESTS - -int main(int argc, char **argv) -{ - ksft_print_header(); - ksft_set_plan(NUM_TESTS); - - /* NOTE: We should be checking for CAP_SYS_ADMIN here... */ - if (geteuid() != 0) - ksft_exit_skip("all tests require euid == 0\n"); - - test_openat2_opath_tests(); - - if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0) - ksft_exit_fail(); - else - ksft_exit_pass(); -} |