Declare relay/dirauth subsystem levels in a header.

This way, we can't get out of sync between the two declarations.

3 files changed, 10 insertions, 2 deletions

diff --git a/src/feature/dirauth/dirauth_stub.c b/src/feature/dirauth/dirauth_stub.c
index b0b4f987f2..d902d56d2b 100644
--- a/src/feature/dirauth/dirauth_stub.c
+++ b/src/feature/dirauth/dirauth_stub.c
@@ -27,7 +27,7 @@ static const config_format_t dirauth_options_stub_fmt = {
 const struct subsys_fns_t sys_dirauth = {
   .name = "dirauth",
   .supported = false,
-  .level = 70,
+  .level = DIRAUTH_SUBSYS_LEVEL,
 
   .options_format = &dirauth_options_stub_fmt
 };
diff --git a/src/feature/dirauth/dirauth_sys.c b/src/feature/dirauth/dirauth_sys.c
index 8a4b1abaab..6ec25681e7 100644
--- a/src/feature/dirauth/dirauth_sys.c
+++ b/src/feature/dirauth/dirauth_sys.c
@@ -60,7 +60,7 @@ dirauth_set_options(void *arg)
 const struct subsys_fns_t sys_dirauth = {
   .name = "dirauth",
   .supported = true,
-  .level = 70,
+  .level = DIRAUTH_SUBSYS_LEVEL,
   .initialize = subsys_dirauth_initialize,
   .shutdown = subsys_dirauth_shutdown,
 
diff --git a/src/feature/dirauth/dirauth_sys.h b/src/feature/dirauth/dirauth_sys.h
index 4c09ff64f9..6f116855df 100644
--- a/src/feature/dirauth/dirauth_sys.h
+++ b/src/feature/dirauth/dirauth_sys.h
@@ -17,4 +17,12 @@ const struct dirauth_options_t *dirauth_get_options(void);
 
 extern const struct subsys_fns_t sys_dirauth;
 
+/**
+ * Subsystem level for the directory-authority system.
+ *
+ * Defined here so that it can be shared between the real and stub
+ * definitions.
+ **/
+#define DIRAUTH_SUBSYS_LEVEL 70
+
 #endif /* !defined(DIRAUTH_SYS_H) */