hs: Learn service version by trying to load the keys

In order to switch the default HS version from 2 to 3, we need tor to be smart
and be able to decide on the version by trying to load the service keys during
configuration validation.

Part of #27215

Signed-off-by: David Goulet <dgoulet@torproject.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/feature/rend/rendservice.h b/src/feature/rend/rendservice.h
index 7096789629..7186289fc7 100644
--- a/src/feature/rend/rendservice.h
+++ b/src/feature/rend/rendservice.h
@@ -145,6 +145,7 @@ int rend_config_service(const struct config_line_t *line_,
 void rend_service_prune_list(void);
 void rend_service_free_staging_list(void);
 int rend_service_load_all_keys(const smartlist_t *service_list);
+int rend_service_key_on_disk(const char *directory_path);
 void rend_services_add_filenames_to_lists(smartlist_t *open_lst,
                                           smartlist_t *stat_lst);
 void rend_consider_services_intro_points(time_t now);