core: reuse the same /tmp, /var/tmp and inaccessible dir

All Execs within the service, will get mounted the same
/tmp and /var/tmp directories, if service is configured with
PrivateTmp=yes. Temporary directories are cleaned up by service
itself in addition to systemd-tmpfiles. Directory which is mounted
as inaccessible is created at runtime in /run/systemd.

1 files changed, 10 insertions, 6 deletions

diff --git a/src/core/namespace.h b/src/core/namespace.h
index 5d72ed91fb..7b886b8abf 100644
--- a/src/core/namespace.h
+++ b/src/core/namespace.h
@@ -23,9 +23,13 @@
 
 #include <stdbool.h>
 
-int setup_namespace(
-                char **writable,
-                char **readable,
-                char **inaccessible,
-                bool private_tmp,
-                unsigned long flags);
+typedef struct ExecContext ExecContext;
+
+int setup_tmpdirs(char **tmp_dir, char **var_tmp_dir);
+int setup_namespace(char **read_write_dirs,
+                    char **read_only_dirs,
+                    char **inaccessible_dirs,
+                    char *tmp_dir,
+                    char *var_tmp_dir,
+                    bool private_tmp,
+                    unsigned mount_flags);