[LTP] [PATCH 08/10] Add landlock04 test

[Li Wang]

I got some failures when this test was performed with exfat FS, but haven't
figured out the reason, FYI:

# uname -r
6.9.6-200.fc40.aarch64

# LTP_SINGLE_FS_TYPE=exfat ./landlock04
...
tst_test.c:1694: TINFO: === Testing on exfat ===
tst_test.c:1106: TINFO: Formatting /dev/loop0 with exfat opts='' extra
opts=''
tst_test.c:1120: TINFO: Mounting /dev/loop0 to /tmp/LTP_lantEvE2G/sandbox
fstyp=exfat flags=0
landlock_common.h:30: TINFO: Landlock ABI v4
landlock04.c:98: TINFO: Testing LANDLOCK_ACCESS_FS_MAKE_CHAR
landlock_tester.h:237: TINFO: Test normal or special files creation
landlock_tester.h:240: TFAIL: mknod(path, type | 0400, dev) failed: EPERM
(1)
landlock_tester.h:120: TINFO: Test binary execution
landlock_tester.h:131: TPASS: execve(FILE_EXEC, args, NULL) : EACCES (13)
landlock_tester.h:146: TINFO: Test writing file
landlock_tester.h:151: TPASS: open(FILE_WRITE, O_WRONLY, PERM_MODE) :
EACCES (13)
landlock_tester.h:159: TINFO: Test reading file
...
tst_test.c:1694: TINFO: === Testing on exfat ===
tst_test.c:1106: TINFO: Formatting /dev/loop0 with exfat opts='' extra
opts=''
tst_test.c:1120: TINFO: Mounting /dev/loop0 to /tmp/LTP_lantEvE2G/sandbox
fstyp=exfat flags=0
landlock_common.h:30: TINFO: Landlock ABI v4
landlock04.c:98: TINFO: Testing LANDLOCK_ACCESS_FS_MAKE_BLOCK
landlock_tester.h:237: TINFO: Test normal or special files creation
landlock_tester.h:240: TFAIL: mknod(path, type | 0400, dev) failed: EPERM
(1)
...
tst_test.c:1694: TINFO: === Testing on exfat ===
tst_test.c:1106: TINFO: Formatting /dev/loop0 with exfat opts='' extra
opts=''
tst_test.c:1120: TINFO: Mounting /dev/loop0 to /tmp/LTP_lantEvE2G/sandbox
fstyp=exfat flags=0
landlock_common.h:30: TINFO: Landlock ABI v4
landlock04.c:98: TINFO: Testing LANDLOCK_ACCESS_FS_MAKE_SOCK
landlock_tester.h:237: TINFO: Test normal or special files creation
landlock_tester.h:240: TFAIL: mknod(path, type | 0400, dev) failed: EPERM
(1)
...


Regard,
Li Wang