v3 control: Persist ONION_CLIENT_AUTH_ADD client name

3 files changed, 16 insertions, 0 deletions

diff --git a/src/feature/control/control_hs.c b/src/feature/control/control_hs.c
index c8de03b318..54b767cd0d 100644
--- a/src/feature/control/control_hs.c
+++ b/src/feature/control/control_hs.c
@@ -134,6 +134,13 @@ handle_control_onion_client_auth_add(control_connection_t *conn,
         }
       } SMARTLIST_FOREACH_END(flag);
     }
+    if (!strcasecmp(line->key, "ClientName")) {
+      if (strlen(line->value) > REND_CLIENTNAME_MAX_LEN) {
+        control_printf_endreply(conn, 512, "ClientName longer than %d chars",
+                                REND_CLIENTNAME_MAX_LEN);
+      }
+      creds->client_name = tor_strdup(line->value);
+    }
   }
 
   hs_client_register_auth_status_t register_status;
@@ -255,6 +262,10 @@ encode_client_auth_cred_for_control_port(
     }
   }
 
+  if (cred->client_name) {
+    smartlist_add_asprintf(control_line, " ClientName=%s", cred->client_name);
+  }
+
   /* Join all the components into a single string */
   msg_str = smartlist_join_strings(control_line, "", 0, NULL);
 
diff --git a/src/feature/hs/hs_client.c b/src/feature/hs/hs_client.c
index d9c5d8ca1d..fc1fd76efc 100644
--- a/src/feature/hs/hs_client.c
+++ b/src/feature/hs/hs_client.c
@@ -2168,6 +2168,8 @@ client_service_authorization_free_(hs_client_service_authorization_t *auth)
     return;
   }
 
+  tor_free(auth->client_name);
+
   memwipe(auth, 0, sizeof(*auth));
   tor_free(auth);
 }
diff --git a/src/feature/hs/hs_client.h b/src/feature/hs/hs_client.h
index a11caa309f..88dede8126 100644
--- a/src/feature/hs/hs_client.h
+++ b/src/feature/hs/hs_client.h
@@ -71,6 +71,9 @@ typedef struct hs_client_service_authorization_t {
   /** An onion address that is used to connect to the onion service. */
   char onion_address[HS_SERVICE_ADDR_LEN_BASE32+1];
 
+  /** An client name used to connect to the onion service. */
+  char *client_name;
+
   /* Optional flags for this client. */
   int flags;
 } hs_client_service_authorization_t;