From 87129ef13603ae46c82bcd09eed948acf0506dbb Mon Sep 17 00:00:00 2001 From: Mickaël Salaün Date: Fri, 6 May 2022 18:08:12 +0200 Subject: selftests/landlock: Make tests build with old libc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Replace SYS_ with __NR_. Using the __NR_ notation, provided by UAPI, is useful to build tests on systems without the SYS_ definitions. Replace SYS_pivot_root with __NR_pivot_root, and SYS_move_mount with __NR_move_mount. Define renameat2() and RENAME_EXCHANGE if they are unknown to old build systems. Cc: Shuah Khan Link: https://lore.kernel.org/r/20220506160820.524344-3-mic@digikod.net Cc: stable@vger.kernel.org Signed-off-by: Mickaël Salaün --- tools/testing/selftests/landlock/fs_test.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c index 28b01cb30c78..cc7fa7b17578 100644 --- a/tools/testing/selftests/landlock/fs_test.c +++ b/tools/testing/selftests/landlock/fs_test.c @@ -22,6 +22,19 @@ #include "common.h" +#ifndef renameat2 +int renameat2(int olddirfd, const char *oldpath, int newdirfd, + const char *newpath, unsigned int flags) +{ + return syscall(__NR_renameat2, olddirfd, oldpath, newdirfd, newpath, + flags); +} +#endif + +#ifndef RENAME_EXCHANGE +#define RENAME_EXCHANGE (1 << 1) +#endif + #define TMP_DIR "tmp" #define BINARY_PATH "./true" @@ -1279,7 +1292,7 @@ TEST_F_FORK(layout1, rule_inside_mount_ns) int ruleset_fd; set_cap(_metadata, CAP_SYS_ADMIN); - ASSERT_EQ(0, syscall(SYS_pivot_root, dir_s3d2, dir_s3d3)) + ASSERT_EQ(0, syscall(__NR_pivot_root, dir_s3d2, dir_s3d3)) { TH_LOG("Failed to pivot root: %s", strerror(errno)); }; @@ -1313,7 +1326,7 @@ TEST_F_FORK(layout1, mount_and_pivot) set_cap(_metadata, CAP_SYS_ADMIN); ASSERT_EQ(-1, mount(NULL, dir_s3d2, NULL, MS_RDONLY, NULL)); ASSERT_EQ(EPERM, errno); - ASSERT_EQ(-1, syscall(SYS_pivot_root, dir_s3d2, dir_s3d3)); + ASSERT_EQ(-1, syscall(__NR_pivot_root, dir_s3d2, dir_s3d3)); ASSERT_EQ(EPERM, errno); clear_cap(_metadata, CAP_SYS_ADMIN); } @@ -1332,13 +1345,13 @@ TEST_F_FORK(layout1, move_mount) ASSERT_LE(0, ruleset_fd); set_cap(_metadata, CAP_SYS_ADMIN); - ASSERT_EQ(0, syscall(SYS_move_mount, AT_FDCWD, dir_s3d2, AT_FDCWD, + ASSERT_EQ(0, syscall(__NR_move_mount, AT_FDCWD, dir_s3d2, AT_FDCWD, dir_s1d2, 0)) { TH_LOG("Failed to move mount: %s", strerror(errno)); } - ASSERT_EQ(0, syscall(SYS_move_mount, AT_FDCWD, dir_s1d2, AT_FDCWD, + ASSERT_EQ(0, syscall(__NR_move_mount, AT_FDCWD, dir_s1d2, AT_FDCWD, dir_s3d2, 0)); clear_cap(_metadata, CAP_SYS_ADMIN); @@ -1346,7 +1359,7 @@ TEST_F_FORK(layout1, move_mount) ASSERT_EQ(0, close(ruleset_fd)); set_cap(_metadata, CAP_SYS_ADMIN); - ASSERT_EQ(-1, syscall(SYS_move_mount, AT_FDCWD, dir_s3d2, AT_FDCWD, + ASSERT_EQ(-1, syscall(__NR_move_mount, AT_FDCWD, dir_s3d2, AT_FDCWD, dir_s1d2, 0)); ASSERT_EQ(EPERM, errno); clear_cap(_metadata, CAP_SYS_ADMIN); -- cgit v1.2.3