path-util: Change path_is_mount_point() symlink arg from bool to flags

This makes path_is_mount_point() consistent with fd_is_mount_point() wrt.
flags.

13 files changed, 34 insertions, 33 deletions

diff --git a/src/core/automount.c b/src/core/automount.c
index 13f80c2abd..d847dc1629 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -747,7 +747,7 @@ static int automount_start(Unit *u) {
         assert(a);
         assert(a->state == AUTOMOUNT_DEAD || a->state == AUTOMOUNT_FAILED);
 
-        if (path_is_mount_point(a->where, false) > 0) {
+        if (path_is_mount_point(a->where, 0) > 0) {
                 log_unit_error(u, "Path %s is already a mount point, refusing start.", a->where);
                 return -EEXIST;
         }
diff --git a/src/core/machine-id-setup.c b/src/core/machine-id-setup.c
index e083c5b347..b3d22840cf 100644
--- a/src/core/machine-id-setup.c
+++ b/src/core/machine-id-setup.c
@@ -297,7 +297,7 @@ int machine_id_commit(const char *root) {
                 etc_machine_id = path_kill_slashes(x);
         }
 
-        r = path_is_mount_point(etc_machine_id, false);
+        r = path_is_mount_point(etc_machine_id, 0);
         if (r < 0)
                 return log_error_errno(r, "Failed to determine whether %s is a mount point: %m", etc_machine_id);
         if (r == 0) {
diff --git a/src/core/mount-setup.c b/src/core/mount-setup.c
index ba96741e95..c35248eeae 100644
--- a/src/core/mount-setup.c
+++ b/src/core/mount-setup.c
@@ -156,7 +156,7 @@ static int mount_one(const MountPoint *p, bool relabel) {
         if (relabel)
                 label_fix(p->where, true, true);
 
-        r = path_is_mount_point(p->where, true);
+        r = path_is_mount_point(p->where, AT_SYMLINK_FOLLOW);
         if (r < 0 && r != -ENOENT)
                 return r;
         if (r > 0)
diff --git a/src/efi-boot-generator/efi-boot-generator.c b/src/efi-boot-generator/efi-boot-generator.c
index 42b21f57de..e6b15c9bb0 100644
--- a/src/efi-boot-generator/efi-boot-generator.c
+++ b/src/efi-boot-generator/efi-boot-generator.c
@@ -68,7 +68,7 @@ int main(int argc, char *argv[]) {
                 return EXIT_SUCCESS;
         }
 
-        r = path_is_mount_point("/boot", true);
+        r = path_is_mount_point("/boot", AT_SYMLINK_FOLLOW);
         if (r > 0) {
                 log_debug("/boot is already a mount point, exiting.");
                 return EXIT_SUCCESS;
diff --git a/src/gpt-auto-generator/gpt-auto-generator.c b/src/gpt-auto-generator/gpt-auto-generator.c
index b192526186..b46e160888 100644
--- a/src/gpt-auto-generator/gpt-auto-generator.c
+++ b/src/gpt-auto-generator/gpt-auto-generator.c
@@ -297,7 +297,7 @@ static int probe_and_add_mount(
         assert(where);
         assert(description);
 
-        if (path_is_mount_point(where, true) <= 0 &&
+        if (path_is_mount_point(where, AT_SYMLINK_FOLLOW) <= 0 &&
             dir_is_empty(where) <= 0) {
                 log_debug("%s already populated, ignoring.", where);
                 return 0;
diff --git a/src/login/logind-user.c b/src/login/logind-user.c
index 71bff96728..dc3db9abda 100644
--- a/src/login/logind-user.c
+++ b/src/login/logind-user.c
@@ -320,7 +320,7 @@ static int user_mkdir_runtime_path(User *u) {
         } else
                 p = u->runtime_path;
 
-        if (path_is_mount_point(p, false) <= 0) {
+        if (path_is_mount_point(p, 0) <= 0) {
                 _cleanup_free_ char *t = NULL;
 
                 (void) mkdir(p, 0700);
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 23bb959171..de755ce538 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -1099,7 +1099,7 @@ static int mount_all(const char *dest, bool userns) {
                 if (!where)
                         return log_oom();
 
-                r = path_is_mount_point(where, true);
+                r = path_is_mount_point(where, AT_SYMLINK_FOLLOW);
                 if (r < 0 && r != -ENOENT)
                         return log_error_errno(r, "Failed to detect whether %s is a mount point: %m", where);
 
@@ -1298,7 +1298,7 @@ static int mount_cgroup_hierarchy(const char *dest, const char *controller, cons
 
         to = strjoina(dest, "/sys/fs/cgroup/", hierarchy);
 
-        r = path_is_mount_point(to, false);
+        r = path_is_mount_point(to, 0);
         if (r < 0 && r != -ENOENT)
                 return log_error_errno(r, "Failed to determine if %s is mounted already: %m", to);
         if (r > 0)
@@ -2154,7 +2154,7 @@ static int setup_journal(const char *directory) {
         p = strjoina("/var/log/journal/", id);
         q = prefix_roota(directory, p);
 
-        if (path_is_mount_point(p, false) > 0) {
+        if (path_is_mount_point(p, 0) > 0) {
                 if (arg_link_journal != LINK_AUTO) {
                         log_error("%s: already a mount point, refusing to use for journal", p);
                         return -EEXIST;
@@ -2163,7 +2163,7 @@ static int setup_journal(const char *directory) {
                 return 0;
         }
 
-        if (path_is_mount_point(q, false) > 0) {
+        if (path_is_mount_point(q, 0) > 0) {
                 if (arg_link_journal != LINK_AUTO) {
                         log_error("%s: already a mount point, refusing to use for journal", q);
                         return -EEXIST;
@@ -4507,7 +4507,7 @@ int main(int argc, char *argv[]) {
                          * the specified is not a mount point we
                          * create the new snapshot in the parent
                          * directory, just next to it. */
-                        r = path_is_mount_point(arg_directory, false);
+                        r = path_is_mount_point(arg_directory, 0);
                         if (r < 0) {
                                 log_error_errno(r, "Failed to determine whether directory %s is mount point: %m", arg_directory);
                                 goto finish;
diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index c0b0ca4cf2..9988e5c574 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -489,7 +489,7 @@ int cg_get_path(const char *controller, const char *path, const char *suffix, ch
         if (_unlikely_(!good)) {
                 int r;
 
-                r = path_is_mount_point("/sys/fs/cgroup", false);
+                r = path_is_mount_point("/sys/fs/cgroup", 0);
                 if (r < 0)
                         return r;
                 if (r == 0)
diff --git a/src/shared/condition.c b/src/shared/condition.c
index 9f2574c2f6..24871b0dae 100644
--- a/src/shared/condition.c
+++ b/src/shared/condition.c
@@ -349,7 +349,7 @@ static int condition_test_path_is_mount_point(Condition *c) {
         assert(c->parameter);
         assert(c->type == CONDITION_PATH_IS_MOUNT_POINT);
 
-        return path_is_mount_point(c->parameter, true) > 0;
+        return path_is_mount_point(c->parameter, AT_SYMLINK_FOLLOW) > 0;
 }
 
 static int condition_test_path_is_read_write(Condition *c) {
diff --git a/src/shared/machine-pool.c b/src/shared/machine-pool.c
index 9920d150ab..447983fb1b 100644
--- a/src/shared/machine-pool.c
+++ b/src/shared/machine-pool.c
@@ -198,7 +198,7 @@ int setup_machine_directory(uint64_t size, sd_bus_error *error) {
                 return 0;
         }
 
-        if (path_is_mount_point("/var/lib/machines", true) > 0 ||
+        if (path_is_mount_point("/var/lib/machines", AT_SYMLINK_FOLLOW) > 0 ||
             dir_is_empty("/var/lib/machines") == 0)
                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "/var/lib/machines is not a btrfs file system. Operation is not supported on legacy file systems.");
 
diff --git a/src/shared/path-util.c b/src/shared/path-util.c
index 8be479cd7f..be50a1865d 100644
--- a/src/shared/path-util.c
+++ b/src/shared/path-util.c
@@ -637,7 +637,8 @@ fallback_fstat:
         return check_st_dev && (a.st_dev != b.st_dev);
 }
 
-int path_is_mount_point(const char *t, bool allow_symlink) {
+/* flags can be AT_SYMLINK_FOLLOW or 0 */
+int path_is_mount_point(const char *t, int flags) {
         _cleanup_close_ int fd = -1;
         _cleanup_free_ char *parent = NULL;
         int r;
@@ -655,7 +656,7 @@ int path_is_mount_point(const char *t, bool allow_symlink) {
         if (fd < 0)
                 return -errno;
 
-        return fd_is_mount_point(fd, basename(t), (allow_symlink ? AT_SYMLINK_FOLLOW : 0));
+        return fd_is_mount_point(fd, basename(t), flags);
 }
 
 int path_is_read_only_fs(const char *path) {
diff --git a/src/shared/path-util.h b/src/shared/path-util.h
index 38ad799ba0..1eac89c51b 100644
--- a/src/shared/path-util.h
+++ b/src/shared/path-util.h
@@ -54,7 +54,7 @@ char** path_strv_resolve(char **l, const char *prefix);
 char** path_strv_resolve_uniq(char **l, const char *prefix);
 
 int fd_is_mount_point(int fd, const char *filename, int flags);
-int path_is_mount_point(const char *path, bool allow_symlink);
+int path_is_mount_point(const char *path, int flags);
 int path_is_read_only_fs(const char *path);
 int path_is_os_tree(const char *path);
 
diff --git a/src/test/test-path-util.c b/src/test/test-path-util.c
index 80782ff902..0045ae6824 100644
--- a/src/test/test-path-util.c
+++ b/src/test/test-path-util.c
@@ -316,17 +316,17 @@ static void test_path_is_mount_point(void) {
         char tmp_dir[] = "/tmp/test-path-is-mount-point-XXXXXX";
         _cleanup_free_ char *file1 = NULL, *file2 = NULL, *link1 = NULL, *link2 = NULL;
 
-        assert_se(path_is_mount_point("/", true) > 0);
-        assert_se(path_is_mount_point("/", false) > 0);
+        assert_se(path_is_mount_point("/", AT_SYMLINK_FOLLOW) > 0);
+        assert_se(path_is_mount_point("/", 0) > 0);
 
-        assert_se(path_is_mount_point("/proc", true) > 0);
-        assert_se(path_is_mount_point("/proc", false) > 0);
+        assert_se(path_is_mount_point("/proc", AT_SYMLINK_FOLLOW) > 0);
+        assert_se(path_is_mount_point("/proc", 0) > 0);
 
-        assert_se(path_is_mount_point("/proc/1", true) == 0);
-        assert_se(path_is_mount_point("/proc/1", false) == 0);
+        assert_se(path_is_mount_point("/proc/1", AT_SYMLINK_FOLLOW) == 0);
+        assert_se(path_is_mount_point("/proc/1", 0) == 0);
 
-        assert_se(path_is_mount_point("/sys", true) > 0);
-        assert_se(path_is_mount_point("/sys", false) > 0);
+        assert_se(path_is_mount_point("/sys", AT_SYMLINK_FOLLOW) > 0);
+        assert_se(path_is_mount_point("/sys", 0) > 0);
 
         /* file mountpoints */
         assert_se(mkdtemp(tmp_dir) != NULL);
@@ -347,17 +347,17 @@ static void test_path_is_mount_point(void) {
         assert_se(link1);
         assert_se(symlink("file2", link2) == 0);
 
-        assert_se(path_is_mount_point(file1, true) == 0);
-        assert_se(path_is_mount_point(file1, false) == 0);
-        assert_se(path_is_mount_point(link1, true) == 0);
-        assert_se(path_is_mount_point(link1, false) == 0);
+        assert_se(path_is_mount_point(file1, AT_SYMLINK_FOLLOW) == 0);
+        assert_se(path_is_mount_point(file1, 0) == 0);
+        assert_se(path_is_mount_point(link1, AT_SYMLINK_FOLLOW) == 0);
+        assert_se(path_is_mount_point(link1, 0) == 0);
 
         /* this test will only work as root */
         if (mount(file1, file2, NULL, MS_BIND, NULL) >= 0) {
-                rf = path_is_mount_point(file2, false);
-                rt = path_is_mount_point(file2, true);
-                rlf = path_is_mount_point(link2, false);
-                rlt = path_is_mount_point(link2, true);
+                rf = path_is_mount_point(file2, 0);
+                rt = path_is_mount_point(file2, AT_SYMLINK_FOLLOW);
+                rlf = path_is_mount_point(link2, 0);
+                rlt = path_is_mount_point(link2, AT_SYMLINK_FOLLOW);
 
                 assert_se(umount(file2) == 0);