| Message ID | 20191209160227.16125-1-zlang@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] syscalls/newmount: new test case for new mount API | expand |
On Tue, Dec 10, 2019 at 12:02:27AM +0800, Zorro Lang wrote: > Linux supports new mount syscalls from 5.2, so add new test cases > to cover these new API. This newmount01 case make sure new API - > fsopen(), fsconfig(), fsmount() and move_mount() can mount a > filesystem, then can be unmounted. > > Signed-off-by: Zorro Lang <zlang@redhat.com> > --- > > Hi, > > V3 test passed on ext2/3/4 and xfs[1], on upstream mainline kernel. Thanks > all your review points:) > But I have a question, how to test other filesystems, likes nfs, cifs? Ping. It's been several weeks passed. Is there more review points? Thanks, Zorro > > Thanks, > Zorro > > configure.ac | 1 + > include/lapi/newmount.h | 95 +++++++++++++++ > include/lapi/syscalls/aarch64.in | 4 + > include/lapi/syscalls/powerpc64.in | 4 + > include/lapi/syscalls/s390x.in | 4 + > include/lapi/syscalls/x86_64.in | 4 + > m4/ltp-newmount.m4 | 10 ++ > runtest/syscalls | 2 + > testcases/kernel/syscalls/newmount/.gitignore | 1 + > testcases/kernel/syscalls/newmount/Makefile | 9 ++ > .../kernel/syscalls/newmount/newmount01.c | 114 ++++++++++++++++++ > 11 files changed, 248 insertions(+) > create mode 100644 include/lapi/newmount.h > create mode 100644 m4/ltp-newmount.m4 > create mode 100644 testcases/kernel/syscalls/newmount/.gitignore > create mode 100644 testcases/kernel/syscalls/newmount/Makefile > create mode 100644 testcases/kernel/syscalls/newmount/newmount01.c > > diff --git a/configure.ac b/configure.ac > index 50d14967d..28f840c51 100644 > --- a/configure.ac > +++ b/configure.ac > @@ -229,6 +229,7 @@ LTP_CHECK_MADVISE > LTP_CHECK_MKDTEMP > LTP_CHECK_MMSGHDR > LTP_CHECK_MREMAP_FIXED > +LTP_CHECK_NEWMOUNT > LTP_CHECK_NOMMU_LINUX > LTP_CHECK_PERF_EVENT > LTP_CHECK_PRCTL_SUPPORT > diff --git a/include/lapi/newmount.h b/include/lapi/newmount.h > new file mode 100644 > index 000000000..13f9fbb9c > --- /dev/null > +++ b/include/lapi/newmount.h > @@ -0,0 +1,95 @@ > +// SPDX-License-Identifier: GPL-2.0-or-later > +/* > + * Copyright (C) 2019 Red Hat, Inc. All rights reserved. > + * Author: Zorro Lang <zlang@redhat.com> > + */ > + > +#ifndef NEWMOUNT_H__ > +#define NEWMOUNT_H__ > + > +#include <stdint.h> > +#include <unistd.h> > +#include "config.h" > +#include "lapi/syscalls.h" > + > +#if !defined(HAVE_FSOPEN) > +static inline int fsopen(const char *fs_name, unsigned int flags) > +{ > + return tst_syscall(__NR_fsopen, fs_name, flags); > +} > + > +/* > + * fsopen() flags. > + */ > +#define FSOPEN_CLOEXEC 0x00000001 > +#endif /* HAVE_FSOPEN */ > + > +#if !defined(HAVE_FSCONFIG) > +static inline int fsconfig(int fsfd, unsigned int cmd, > + const char *key, const void *val, int aux) > +{ > + return tst_syscall(__NR_fsconfig, fsfd, cmd, key, val, aux); > +} > + > +/* > + * The type of fsconfig() call made. > + */ > +enum fsconfig_command { > + FSCONFIG_SET_FLAG = 0, /* Set parameter, supplying no value */ > + FSCONFIG_SET_STRING = 1, /* Set parameter, supplying a string value */ > + FSCONFIG_SET_BINARY = 2, /* Set parameter, supplying a binary blob value */ > + FSCONFIG_SET_PATH = 3, /* Set parameter, supplying an object by path */ > + FSCONFIG_SET_PATH_EMPTY = 4, /* Set parameter, supplying an object by (empty) path */ > + FSCONFIG_SET_FD = 5, /* Set parameter, supplying an object by fd */ > + FSCONFIG_CMD_CREATE = 6, /* Invoke superblock creation */ > + FSCONFIG_CMD_RECONFIGURE = 7, /* Invoke superblock reconfiguration */ > +}; > +#endif /* HAVE_FSCONFIG */ > + > +#if !defined(HAVE_FSMOUNT) > +static inline int fsmount(int fsfd, unsigned int flags, unsigned int ms_flags) > +{ > + return tst_syscall(__NR_fsmount, fsfd, flags, ms_flags); > +} > + > +/* > + * fsmount() flags. > + */ > +#define FSMOUNT_CLOEXEC 0x00000001 > + > +/* > + * Mount attributes. > + */ > +#define MOUNT_ATTR_RDONLY 0x00000001 /* Mount read-only */ > +#define MOUNT_ATTR_NOSUID 0x00000002 /* Ignore suid and sgid bits */ > +#define MOUNT_ATTR_NODEV 0x00000004 /* Disallow access to device special files */ > +#define MOUNT_ATTR_NOEXEC 0x00000008 /* Disallow program execution */ > +#define MOUNT_ATTR__ATIME 0x00000070 /* Setting on how atime should be updated */ > +#define MOUNT_ATTR_RELATIME 0x00000000 /* - Update atime relative to mtime/ctime. */ > +#define MOUNT_ATTR_NOATIME 0x00000010 /* - Do not update access times. */ > +#define MOUNT_ATTR_STRICTATIME 0x00000020 /* - Always perform atime updates */ > +#define MOUNT_ATTR_NODIRATIME 0x00000080 /* Do not update directory access times */ > +#endif /* HAVE_FSMOUNT */ > + > +#if !defined(HAVE_MOVE_MOUNT) > +static inline int move_mount(int from_dfd, const char *from_pathname, > + int to_dfd, const char *to_pathname, > + unsigned int flags) > +{ > + return tst_syscall(__NR_move_mount, from_dfd, from_pathname, to_dfd, > + to_pathname, flags); > +} > + > +/* > + * move_mount() flags. > + */ > +#define MOVE_MOUNT_F_SYMLINKS 0x00000001 /* Follow symlinks on from path */ > +#define MOVE_MOUNT_F_AUTOMOUNTS 0x00000002 /* Follow automounts on from path */ > +#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */ > +#define MOVE_MOUNT_T_SYMLINKS 0x00000010 /* Follow symlinks on to path */ > +#define MOVE_MOUNT_T_AUTOMOUNTS 0x00000020 /* Follow automounts on to path */ > +#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */ > +#define MOVE_MOUNT__MASK 0x00000077 > +#endif /* HAVE_MOVE_MOUNT */ > + > +#endif /* NEWMOUNT_H__ */ > diff --git a/include/lapi/syscalls/aarch64.in b/include/lapi/syscalls/aarch64.in > index 0e00641bc..5b9e1d9a4 100644 > --- a/include/lapi/syscalls/aarch64.in > +++ b/include/lapi/syscalls/aarch64.in > @@ -270,4 +270,8 @@ pkey_mprotect 288 > pkey_alloc 289 > pkey_free 290 > pidfd_send_signal 424 > +move_mount 429 > +fsopen 430 > +fsconfig 431 > +fsmount 432 > _sysctl 1078 > diff --git a/include/lapi/syscalls/powerpc64.in b/include/lapi/syscalls/powerpc64.in > index 660165d7a..3aaed64e0 100644 > --- a/include/lapi/syscalls/powerpc64.in > +++ b/include/lapi/syscalls/powerpc64.in > @@ -359,3 +359,7 @@ pidfd_send_signal 424 > pkey_mprotect 386 > pkey_alloc 384 > pkey_free 385 > +move_mount 429 > +fsopen 430 > +fsconfig 431 > +fsmount 432 > diff --git a/include/lapi/syscalls/s390x.in b/include/lapi/syscalls/s390x.in > index 7d632d1dc..bd427555a 100644 > --- a/include/lapi/syscalls/s390x.in > +++ b/include/lapi/syscalls/s390x.in > @@ -341,3 +341,7 @@ pkey_mprotect 384 > pkey_alloc 385 > pkey_free 386 > pidfd_send_signal 424 > +move_mount 429 > +fsopen 430 > +fsconfig 431 > +fsmount 432 > diff --git a/include/lapi/syscalls/x86_64.in b/include/lapi/syscalls/x86_64.in > index b1cbd4f2f..94f0b562e 100644 > --- a/include/lapi/syscalls/x86_64.in > +++ b/include/lapi/syscalls/x86_64.in > @@ -320,3 +320,7 @@ pkey_alloc 330 > pkey_free 331 > statx 332 > pidfd_send_signal 424 > +move_mount 429 > +fsopen 430 > +fsconfig 431 > +fsmount 432 > diff --git a/m4/ltp-newmount.m4 b/m4/ltp-newmount.m4 > new file mode 100644 > index 000000000..e13a6f0b1 > --- /dev/null > +++ b/m4/ltp-newmount.m4 > @@ -0,0 +1,10 @@ > +dnl SPDX-License-Identifier: GPL-2.0-or-later > +dnl Copyright (C) 2019 Red Hat, Inc. All Rights Reserved. > + > +AC_DEFUN([LTP_CHECK_NEWMOUNT],[ > +AC_CHECK_FUNCS(fsopen,,) > +AC_CHECK_FUNCS(fsconfig,,) > +AC_CHECK_FUNCS(fsmount,,) > +AC_CHECK_FUNCS(move_mount,,) > +AC_CHECK_HEADER(sys/mount.h,,,) > +]) > diff --git a/runtest/syscalls b/runtest/syscalls > index 15dbd9971..fac1c62d2 100644 > --- a/runtest/syscalls > +++ b/runtest/syscalls > @@ -794,6 +794,8 @@ nanosleep01 nanosleep01 > nanosleep02 nanosleep02 > nanosleep04 nanosleep04 > > +newmount01 newmount01 > + > nftw01 nftw01 > nftw6401 nftw6401 > > diff --git a/testcases/kernel/syscalls/newmount/.gitignore b/testcases/kernel/syscalls/newmount/.gitignore > new file mode 100644 > index 000000000..dc78edd5b > --- /dev/null > +++ b/testcases/kernel/syscalls/newmount/.gitignore > @@ -0,0 +1 @@ > +/newmount01 > diff --git a/testcases/kernel/syscalls/newmount/Makefile b/testcases/kernel/syscalls/newmount/Makefile > new file mode 100644 > index 000000000..7d0920df6 > --- /dev/null > +++ b/testcases/kernel/syscalls/newmount/Makefile > @@ -0,0 +1,9 @@ > +# SPDX-License-Identifier: GPL-2.0-or-later > +# > +# Copyright (C) 2019 Red Hat, Inc. All rights reserved. > + > +top_srcdir ?= ../../../.. > + > +include $(top_srcdir)/include/mk/testcases.mk > + > +include $(top_srcdir)/include/mk/generic_leaf_target.mk > diff --git a/testcases/kernel/syscalls/newmount/newmount01.c b/testcases/kernel/syscalls/newmount/newmount01.c > new file mode 100644 > index 000000000..464ecb699 > --- /dev/null > +++ b/testcases/kernel/syscalls/newmount/newmount01.c > @@ -0,0 +1,114 @@ > +// SPDX-License-Identifier: GPL-2.0-or-later > +/* > + * Copyright (C) 2019 Red Hat, Inc. All rights reserved. > + * Author: Zorro Lang <zlang@redhat.com> > + * > + * Use new mount API (fsopen, fsconfig, fsmount, move_mount) to mount > + * a filesystem without any specified mount options. > + */ > + > +#include <stdio.h> > +#include <stdlib.h> > +#include <unistd.h> > +#include <errno.h> > +#include <sys/mount.h> > + > +#include "tst_test.h" > +#include "tst_safe_macros.h" > +#include "lapi/newmount.h" > + > +#define LINELENGTH 256 > +#define MNTPOINT "newmount_point" > +static int sfd, mfd; > +static int is_mounted = 0; > + > +static int ismount(char *mntpoint) > +{ > + int ret = 0; > + FILE *file; > + char line[LINELENGTH]; > + > + file = fopen("/proc/mounts", "r"); > + if (file == NULL) > + tst_brk(TFAIL | TTERRNO, "Open /proc/mounts failed"); > + > + while (fgets(line, LINELENGTH, file) != NULL) { > + if (strstr(line, mntpoint) != NULL) { > + ret = 1; > + break; > + } > + } > + fclose(file); > + return ret; > +} > + > +static void cleanup(void) > +{ > + if (is_mounted) { > + TEST(tst_umount(MNTPOINT)); > + if (TST_RET != 0) > + tst_brk(TFAIL | TTERRNO, "umount failed in cleanup"); > + } > +} > + > +static void test_newmount(void) > +{ > + TEST(fsopen(tst_device->fs_type, FSOPEN_CLOEXEC)); > + if (TST_RET < 0) { > + tst_brk(TFAIL | TTERRNO, > + "fsopen %s", tst_device->fs_type); > + } > + sfd = TST_RET; > + tst_res(TPASS, "fsopen %s", tst_device->fs_type); > + > + TEST(fsconfig(sfd, FSCONFIG_SET_STRING, "source", tst_device->dev, 0)); > + if (TST_RET < 0) { > + tst_brk(TFAIL | TTERRNO, > + "fsconfig set source to %s", tst_device->dev); > + } > + tst_res(TPASS, "fsconfig set source to %s", tst_device->dev); > + > + > + TEST(fsconfig(sfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0)); > + if (TST_RET < 0) { > + tst_brk(TFAIL | TTERRNO, > + "fsconfig create superblock"); > + } > + tst_res(TPASS, "fsconfig create superblock"); > + > + TEST(fsmount(sfd, FSMOUNT_CLOEXEC, 0)); > + if (TST_RET < 0) { > + tst_brk(TFAIL | TTERRNO, "fsmount"); > + } > + mfd = TST_RET; > + tst_res(TPASS, "fsmount"); > + SAFE_CLOSE(sfd); > + > + TEST(move_mount(mfd, "", AT_FDCWD, MNTPOINT, MOVE_MOUNT_F_EMPTY_PATH)); > + if (TST_RET < 0) { > + tst_brk(TFAIL | TTERRNO, "move_mount attach to mount point"); > + } > + is_mounted = 1; > + tst_res(TPASS, "move_mount attach to mount point"); > + SAFE_CLOSE(mfd); > + > + if (ismount(MNTPOINT)) { > + tst_res(TPASS, "new mount works"); > + TEST(tst_umount(MNTPOINT)); > + if (TST_RET != 0) > + tst_brk(TFAIL | TTERRNO, "umount failed"); > + is_mounted = 0; > + } else { > + tst_res(TFAIL, "new mount fails"); > + } > +} > + > +static struct tst_test test = { > + .test_all = test_newmount, > + .cleanup = cleanup, > + .needs_root = 1, > + .mntpoint = MNTPOINT, > + .needs_device = 1, > + .format_device = 1, > + .all_filesystems = 1, > +}; > -- > 2.20.1 > > > -- > Mailing list info: https://lists.linux.it/listinfo/ltp >
Hi Zorro, > > V3 test passed on ext2/3/4 and xfs[1], on upstream mainline kernel. Thanks > > all your review points:) > > But I have a question, how to test other filesystems, likes nfs, cifs? > Ping. > It's been several weeks passed. Is there more review points? Sorry for a delay, that's how it works in open source projects (we're also just contributors). But you could speed up the review yourself, if you have carefully read reviews and address suggestions :). I like you use .all_filesystems = 1 as I suggested in [1], but I warned that it breaks nfs. newmount01.c:58: FAIL: fsopen ntfs: ENODEV (19) Fortunately this does not need any patch for filtering nfs as TST_FS_SKIP_FUSE is enough for it - add this to struct tst_test: .dev_fs_flags = TST_FS_SKIP_FUSE Not sure if just fsopen() is affected, but it probably does not make sense to test just fsopen() and fsconfig(). There are some issues Xu found in v2 [2], which you didn't address: > > +AC_DEFUN([LTP_CHECK_NEWMOUNT],[ > > +AC_CHECK_FUNCS(fsopen,,) > > +AC_CHECK_FUNCS(fsconfig,,) > > +AC_CHECK_FUNCS(fsmount,,) > > +AC_CHECK_FUNCS(move_mount,,) > > +AC_CHECK_HEADER(sys/mount.h,,,) > > +]) > You use m4 to check them. But it seems that you don't use those macros > in your cases. > + I told you in v1 to move AC_CHECK_FUNCS and AC_CHECK_HEADER into configure.ac > (there is sorted list you add things you need), we use m4/ltp-*.m4 files only > for complex checks. > > > +#include "tst_safe_macros.h" > "tst_test.h" has included "tst_safe_macros.h" => simply just remove it. > > +static int sfd, mfd; > > +static int is_mounted = 0; > static int sfd, mfd, is_mounted; (static is always 0). There are also Cyril's suggestions and objections [3]: > > +static void setup(void) > > +{ > > + SAFE_MKFS(tst_device->dev, tst_device->fs_type, NULL, NULL); > > Why aren't we just setting .format_device in the test structure? > > +static void cleanup(void) > > +{ > > + if (mount_flag == 1) { > > + TEST(tst_umount(MNTPOINT)); > > + if (TST_RET != 0) > > + tst_brk(TBROK | TTERRNO, "umount failed"); > > The library already produces TWARN if we fail to umount the device, so I > would say that there is no need to TBROK here, the TBROK will be > converted to TWARN anyways since it's in the cleanup... He also noted, that umount must be done in test: > > + SAFE_CLOSE(mfd); > We have to umount the device here, otherwise it would be mounted for > each test iteration with -i. Another reason for tst_umount() in test is for me that it looks a bit strange for me to perform testing in cleanup function. + his objections against else blocks and struct test_cases (I fully agree with it). [1] https://lists.linux.it/pipermail/ltp/2019-November/014619.html [2] https://lists.linux.it/pipermail/ltp/2019-December/014702.html [3] https://lists.linux.it/pipermail/ltp/2019-December/014654.html Kind regards, Petr
Hi! > Ping. > > It's been several weeks passed. Is there more review points? Just FYI, most of the Europe takes time off starting at mid-December up until New Year due to Christmass and since most of the LTP patch reviewers are located in Europe there is very little review done during that period. As for LTP we are going to produce release soon as well, so I can't promise I can have a look this or even the next week. Please be patient.
diff --git a/configure.ac b/configure.ac index 50d14967d..28f840c51 100644 --- a/configure.ac +++ b/configure.ac @@ -229,6 +229,7 @@ LTP_CHECK_MADVISE LTP_CHECK_MKDTEMP LTP_CHECK_MMSGHDR LTP_CHECK_MREMAP_FIXED +LTP_CHECK_NEWMOUNT LTP_CHECK_NOMMU_LINUX LTP_CHECK_PERF_EVENT LTP_CHECK_PRCTL_SUPPORT diff --git a/include/lapi/newmount.h b/include/lapi/newmount.h new file mode 100644 index 000000000..13f9fbb9c --- /dev/null +++ b/include/lapi/newmount.h @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2019 Red Hat, Inc. All rights reserved. + * Author: Zorro Lang <zlang@redhat.com> + */ + +#ifndef NEWMOUNT_H__ +#define NEWMOUNT_H__ + +#include <stdint.h> +#include <unistd.h> +#include "config.h" +#include "lapi/syscalls.h" + +#if !defined(HAVE_FSOPEN) +static inline int fsopen(const char *fs_name, unsigned int flags) +{ + return tst_syscall(__NR_fsopen, fs_name, flags); +} + +/* + * fsopen() flags. + */ +#define FSOPEN_CLOEXEC 0x00000001 +#endif /* HAVE_FSOPEN */ + +#if !defined(HAVE_FSCONFIG) +static inline int fsconfig(int fsfd, unsigned int cmd, + const char *key, const void *val, int aux) +{ + return tst_syscall(__NR_fsconfig, fsfd, cmd, key, val, aux); +} + +/* + * The type of fsconfig() call made. + */ +enum fsconfig_command { + FSCONFIG_SET_FLAG = 0, /* Set parameter, supplying no value */ + FSCONFIG_SET_STRING = 1, /* Set parameter, supplying a string value */ + FSCONFIG_SET_BINARY = 2, /* Set parameter, supplying a binary blob value */ + FSCONFIG_SET_PATH = 3, /* Set parameter, supplying an object by path */ + FSCONFIG_SET_PATH_EMPTY = 4, /* Set parameter, supplying an object by (empty) path */ + FSCONFIG_SET_FD = 5, /* Set parameter, supplying an object by fd */ + FSCONFIG_CMD_CREATE = 6, /* Invoke superblock creation */ + FSCONFIG_CMD_RECONFIGURE = 7, /* Invoke superblock reconfiguration */ +}; +#endif /* HAVE_FSCONFIG */ + +#if !defined(HAVE_FSMOUNT) +static inline int fsmount(int fsfd, unsigned int flags, unsigned int ms_flags) +{ + return tst_syscall(__NR_fsmount, fsfd, flags, ms_flags); +} + +/* + * fsmount() flags. + */ +#define FSMOUNT_CLOEXEC 0x00000001 + +/* + * Mount attributes. + */ +#define MOUNT_ATTR_RDONLY 0x00000001 /* Mount read-only */ +#define MOUNT_ATTR_NOSUID 0x00000002 /* Ignore suid and sgid bits */ +#define MOUNT_ATTR_NODEV 0x00000004 /* Disallow access to device special files */ +#define MOUNT_ATTR_NOEXEC 0x00000008 /* Disallow program execution */ +#define MOUNT_ATTR__ATIME 0x00000070 /* Setting on how atime should be updated */ +#define MOUNT_ATTR_RELATIME 0x00000000 /* - Update atime relative to mtime/ctime. */ +#define MOUNT_ATTR_NOATIME 0x00000010 /* - Do not update access times. */ +#define MOUNT_ATTR_STRICTATIME 0x00000020 /* - Always perform atime updates */ +#define MOUNT_ATTR_NODIRATIME 0x00000080 /* Do not update directory access times */ +#endif /* HAVE_FSMOUNT */ + +#if !defined(HAVE_MOVE_MOUNT) +static inline int move_mount(int from_dfd, const char *from_pathname, + int to_dfd, const char *to_pathname, + unsigned int flags) +{ + return tst_syscall(__NR_move_mount, from_dfd, from_pathname, to_dfd, + to_pathname, flags); +} + +/* + * move_mount() flags. + */ +#define MOVE_MOUNT_F_SYMLINKS 0x00000001 /* Follow symlinks on from path */ +#define MOVE_MOUNT_F_AUTOMOUNTS 0x00000002 /* Follow automounts on from path */ +#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */ +#define MOVE_MOUNT_T_SYMLINKS 0x00000010 /* Follow symlinks on to path */ +#define MOVE_MOUNT_T_AUTOMOUNTS 0x00000020 /* Follow automounts on to path */ +#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */ +#define MOVE_MOUNT__MASK 0x00000077 +#endif /* HAVE_MOVE_MOUNT */ + +#endif /* NEWMOUNT_H__ */ diff --git a/include/lapi/syscalls/aarch64.in b/include/lapi/syscalls/aarch64.in index 0e00641bc..5b9e1d9a4 100644 --- a/include/lapi/syscalls/aarch64.in +++ b/include/lapi/syscalls/aarch64.in @@ -270,4 +270,8 @@ pkey_mprotect 288 pkey_alloc 289 pkey_free 290 pidfd_send_signal 424 +move_mount 429 +fsopen 430 +fsconfig 431 +fsmount 432 _sysctl 1078 diff --git a/include/lapi/syscalls/powerpc64.in b/include/lapi/syscalls/powerpc64.in index 660165d7a..3aaed64e0 100644 --- a/include/lapi/syscalls/powerpc64.in +++ b/include/lapi/syscalls/powerpc64.in @@ -359,3 +359,7 @@ pidfd_send_signal 424 pkey_mprotect 386 pkey_alloc 384 pkey_free 385 +move_mount 429 +fsopen 430 +fsconfig 431 +fsmount 432 diff --git a/include/lapi/syscalls/s390x.in b/include/lapi/syscalls/s390x.in index 7d632d1dc..bd427555a 100644 --- a/include/lapi/syscalls/s390x.in +++ b/include/lapi/syscalls/s390x.in @@ -341,3 +341,7 @@ pkey_mprotect 384 pkey_alloc 385 pkey_free 386 pidfd_send_signal 424 +move_mount 429 +fsopen 430 +fsconfig 431 +fsmount 432 diff --git a/include/lapi/syscalls/x86_64.in b/include/lapi/syscalls/x86_64.in index b1cbd4f2f..94f0b562e 100644 --- a/include/lapi/syscalls/x86_64.in +++ b/include/lapi/syscalls/x86_64.in @@ -320,3 +320,7 @@ pkey_alloc 330 pkey_free 331 statx 332 pidfd_send_signal 424 +move_mount 429 +fsopen 430 +fsconfig 431 +fsmount 432 diff --git a/m4/ltp-newmount.m4 b/m4/ltp-newmount.m4 new file mode 100644 index 000000000..e13a6f0b1 --- /dev/null +++ b/m4/ltp-newmount.m4 @@ -0,0 +1,10 @@ +dnl SPDX-License-Identifier: GPL-2.0-or-later +dnl Copyright (C) 2019 Red Hat, Inc. All Rights Reserved. + +AC_DEFUN([LTP_CHECK_NEWMOUNT],[ +AC_CHECK_FUNCS(fsopen,,) +AC_CHECK_FUNCS(fsconfig,,) +AC_CHECK_FUNCS(fsmount,,) +AC_CHECK_FUNCS(move_mount,,) +AC_CHECK_HEADER(sys/mount.h,,,) +]) diff --git a/runtest/syscalls b/runtest/syscalls index 15dbd9971..fac1c62d2 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -794,6 +794,8 @@ nanosleep01 nanosleep01 nanosleep02 nanosleep02 nanosleep04 nanosleep04 +newmount01 newmount01 + nftw01 nftw01 nftw6401 nftw6401 diff --git a/testcases/kernel/syscalls/newmount/.gitignore b/testcases/kernel/syscalls/newmount/.gitignore new file mode 100644 index 000000000..dc78edd5b --- /dev/null +++ b/testcases/kernel/syscalls/newmount/.gitignore @@ -0,0 +1 @@ +/newmount01 diff --git a/testcases/kernel/syscalls/newmount/Makefile b/testcases/kernel/syscalls/newmount/Makefile new file mode 100644 index 000000000..7d0920df6 --- /dev/null +++ b/testcases/kernel/syscalls/newmount/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# Copyright (C) 2019 Red Hat, Inc. All rights reserved. + +top_srcdir ?= ../../../.. + +include $(top_srcdir)/include/mk/testcases.mk + +include $(top_srcdir)/include/mk/generic_leaf_target.mk diff --git a/testcases/kernel/syscalls/newmount/newmount01.c b/testcases/kernel/syscalls/newmount/newmount01.c new file mode 100644 index 000000000..464ecb699 --- /dev/null +++ b/testcases/kernel/syscalls/newmount/newmount01.c @@ -0,0 +1,114 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2019 Red Hat, Inc. All rights reserved. + * Author: Zorro Lang <zlang@redhat.com> + * + * Use new mount API (fsopen, fsconfig, fsmount, move_mount) to mount + * a filesystem without any specified mount options. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <sys/mount.h> + +#include "tst_test.h" +#include "tst_safe_macros.h" +#include "lapi/newmount.h" + +#define LINELENGTH 256 +#define MNTPOINT "newmount_point" +static int sfd, mfd; +static int is_mounted = 0; + +static int ismount(char *mntpoint) +{ + int ret = 0; + FILE *file; + char line[LINELENGTH]; + + file = fopen("/proc/mounts", "r"); + if (file == NULL) + tst_brk(TFAIL | TTERRNO, "Open /proc/mounts failed"); + + while (fgets(line, LINELENGTH, file) != NULL) { + if (strstr(line, mntpoint) != NULL) { + ret = 1; + break; + } + } + fclose(file); + return ret; +} + +static void cleanup(void) +{ + if (is_mounted) { + TEST(tst_umount(MNTPOINT)); + if (TST_RET != 0) + tst_brk(TFAIL | TTERRNO, "umount failed in cleanup"); + } +} + +static void test_newmount(void) +{ + TEST(fsopen(tst_device->fs_type, FSOPEN_CLOEXEC)); + if (TST_RET < 0) { + tst_brk(TFAIL | TTERRNO, + "fsopen %s", tst_device->fs_type); + } + sfd = TST_RET; + tst_res(TPASS, "fsopen %s", tst_device->fs_type); + + TEST(fsconfig(sfd, FSCONFIG_SET_STRING, "source", tst_device->dev, 0)); + if (TST_RET < 0) { + tst_brk(TFAIL | TTERRNO, + "fsconfig set source to %s", tst_device->dev); + } + tst_res(TPASS, "fsconfig set source to %s", tst_device->dev); + + + TEST(fsconfig(sfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0)); + if (TST_RET < 0) { + tst_brk(TFAIL | TTERRNO, + "fsconfig create superblock"); + } + tst_res(TPASS, "fsconfig create superblock"); + + TEST(fsmount(sfd, FSMOUNT_CLOEXEC, 0)); + if (TST_RET < 0) { + tst_brk(TFAIL | TTERRNO, "fsmount"); + } + mfd = TST_RET; + tst_res(TPASS, "fsmount"); + SAFE_CLOSE(sfd); + + TEST(move_mount(mfd, "", AT_FDCWD, MNTPOINT, MOVE_MOUNT_F_EMPTY_PATH)); + if (TST_RET < 0) { + tst_brk(TFAIL | TTERRNO, "move_mount attach to mount point"); + } + is_mounted = 1; + tst_res(TPASS, "move_mount attach to mount point"); + SAFE_CLOSE(mfd); + + if (ismount(MNTPOINT)) { + tst_res(TPASS, "new mount works"); + TEST(tst_umount(MNTPOINT)); + if (TST_RET != 0) + tst_brk(TFAIL | TTERRNO, "umount failed"); + is_mounted = 0; + } else { + tst_res(TFAIL, "new mount fails"); + } +} + +static struct tst_test test = { + .test_all = test_newmount, + .cleanup = cleanup, + .needs_root = 1, + .mntpoint = MNTPOINT, + .needs_device = 1, + .format_device = 1, + .all_filesystems = 1, +};
Linux supports new mount syscalls from 5.2, so add new test cases to cover these new API. This newmount01 case make sure new API - fsopen(), fsconfig(), fsmount() and move_mount() can mount a filesystem, then can be unmounted. Signed-off-by: Zorro Lang <zlang@redhat.com> --- Hi, V3 test passed on ext2/3/4 and xfs[1], on upstream mainline kernel. Thanks all your review points:) But I have a question, how to test other filesystems, likes nfs, cifs? Thanks, Zorro configure.ac | 1 + include/lapi/newmount.h | 95 +++++++++++++++ include/lapi/syscalls/aarch64.in | 4 + include/lapi/syscalls/powerpc64.in | 4 + include/lapi/syscalls/s390x.in | 4 + include/lapi/syscalls/x86_64.in | 4 + m4/ltp-newmount.m4 | 10 ++ runtest/syscalls | 2 + testcases/kernel/syscalls/newmount/.gitignore | 1 + testcases/kernel/syscalls/newmount/Makefile | 9 ++ .../kernel/syscalls/newmount/newmount01.c | 114 ++++++++++++++++++ 11 files changed, 248 insertions(+) create mode 100644 include/lapi/newmount.h create mode 100644 m4/ltp-newmount.m4 create mode 100644 testcases/kernel/syscalls/newmount/.gitignore create mode 100644 testcases/kernel/syscalls/newmount/Makefile create mode 100644 testcases/kernel/syscalls/newmount/newmount01.c