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e6fbd1759c
This follow-up patch completes centralization of kselftest.h and ksefltest_harness.h includes in remaining seltests files, replacing all relative paths with a non-relative paths using shared -I include path in lib.mk Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on riscv, arm64, x86_64 and powerpc arch. [reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h] Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/ Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Günther Noack <gnoack@google.com> Cc: Jakub Kacinski <kuba@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mickael Salaun <mic@digikod.net> Cc: Ming Lei <ming.lei@redhat.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Simon Horman <horms@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright (c) 2025 Chen Linxuan <chenlinxuan@uniontech.com>
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#define _GNU_SOURCE
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <sched.h>
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#include <linux/limits.h>
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#include "kselftest_harness.h"
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#define FUSECTL_MOUNTPOINT "/sys/fs/fuse/connections"
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#define FUSE_MOUNTPOINT "/tmp/fuse_mnt_XXXXXX"
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#define FUSE_DEVICE "/dev/fuse"
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#define FUSECTL_TEST_VALUE "1"
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static void write_file(struct __test_metadata *const _metadata,
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const char *path, const char *val)
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{
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int fd = open(path, O_WRONLY);
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size_t len = strlen(val);
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ASSERT_GE(fd, 0);
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ASSERT_EQ(write(fd, val, len), len);
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ASSERT_EQ(close(fd), 0);
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}
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FIXTURE(fusectl){
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char fuse_mountpoint[sizeof(FUSE_MOUNTPOINT)];
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int connection;
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};
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FIXTURE_SETUP(fusectl)
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{
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const char *fuse_mnt_prog = "./fuse_mnt";
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int status, pid;
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struct stat statbuf;
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uid_t uid = getuid();
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gid_t gid = getgid();
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char buf[32];
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/* Setup userns */
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ASSERT_EQ(unshare(CLONE_NEWNS|CLONE_NEWUSER), 0);
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sprintf(buf, "0 %d 1", uid);
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write_file(_metadata, "/proc/self/uid_map", buf);
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write_file(_metadata, "/proc/self/setgroups", "deny");
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sprintf(buf, "0 %d 1", gid);
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write_file(_metadata, "/proc/self/gid_map", buf);
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ASSERT_EQ(mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL), 0);
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strcpy(self->fuse_mountpoint, FUSE_MOUNTPOINT);
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if (!mkdtemp(self->fuse_mountpoint))
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SKIP(return,
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"Failed to create FUSE mountpoint %s",
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strerror(errno));
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if (access(FUSECTL_MOUNTPOINT, F_OK))
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SKIP(return,
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"FUSE control filesystem not mounted");
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pid = fork();
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if (pid < 0)
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SKIP(return,
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"Failed to fork FUSE daemon process: %s",
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strerror(errno));
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if (pid == 0) {
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execlp(fuse_mnt_prog, fuse_mnt_prog, self->fuse_mountpoint, NULL);
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exit(errno);
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}
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waitpid(pid, &status, 0);
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if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
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SKIP(return,
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"Failed to start FUSE daemon %s",
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strerror(WEXITSTATUS(status)));
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}
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if (stat(self->fuse_mountpoint, &statbuf))
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SKIP(return,
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"Failed to stat FUSE mountpoint %s",
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strerror(errno));
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self->connection = statbuf.st_dev;
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}
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FIXTURE_TEARDOWN(fusectl)
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{
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umount2(self->fuse_mountpoint, MNT_DETACH);
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rmdir(self->fuse_mountpoint);
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}
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TEST_F(fusectl, abort)
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{
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char path_buf[PATH_MAX];
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int abort_fd, test_fd, ret;
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sprintf(path_buf, "/sys/fs/fuse/connections/%d/abort", self->connection);
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ASSERT_EQ(0, access(path_buf, F_OK));
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abort_fd = open(path_buf, O_WRONLY);
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ASSERT_GE(abort_fd, 0);
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sprintf(path_buf, "%s/test", self->fuse_mountpoint);
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test_fd = open(path_buf, O_RDWR);
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ASSERT_GE(test_fd, 0);
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ret = read(test_fd, path_buf, sizeof(path_buf));
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ASSERT_EQ(ret, 0);
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ret = write(test_fd, "test", sizeof("test"));
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ASSERT_EQ(ret, sizeof("test"));
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ret = lseek(test_fd, 0, SEEK_SET);
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ASSERT_GE(ret, 0);
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ret = write(abort_fd, FUSECTL_TEST_VALUE, sizeof(FUSECTL_TEST_VALUE));
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ASSERT_GT(ret, 0);
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close(abort_fd);
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ret = read(test_fd, path_buf, sizeof(path_buf));
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ASSERT_EQ(ret, -1);
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ASSERT_EQ(errno, ENOTCONN);
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}
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TEST_HARNESS_MAIN
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