prop224: Move service version into config object

It makes more sense to have the version in the configuration object of the
service because it is afterall a torrc option (HiddenServiceVersion).

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

src/or/hs_config.c

@@ -55,7 +55,7 @@ stage_services(smartlist_t *service_list)
    * only >= v3 service. And remember, v2 has a different object type which is
    * shadow copied from an hs_service_t type. */
   SMARTLIST_FOREACH_BEGIN(service_list, hs_service_t *, s) {
-    if (s->version == HS_VERSION_TWO) {
+    if (s->config.version == HS_VERSION_TWO) {
       SMARTLIST_DEL_CURRENT(service_list, s);
       hs_service_free(s);
     }
@@ -157,7 +157,7 @@ config_has_invalid_options(const config_line_t *line_,
   const config_line_t *line;
 
   tor_assert(service);
-  tor_assert(service->version <= HS_VERSION_MAX);
+  tor_assert(service->config.version <= HS_VERSION_MAX);
 
   /* List of options that a v3 service doesn't support thus must exclude from
    * its configuration. */
@@ -178,7 +178,7 @@ config_has_invalid_options(const config_line_t *line_,
     { opts_exclude_v3 }, /* v3. */
   };
 
-  optlist = exclude_lists[service->version].list;
+  optlist = exclude_lists[service->config.version].list;
   if (optlist == NULL) {
     /* No exclude options to look at for this version. */
     goto end;
@@ -193,7 +193,8 @@ config_has_invalid_options(const config_line_t *line_,
       if (!strcasecmp(line->key, opt)) {
         log_warn(LD_CONFIG, "Hidden service option %s is incompatible with "
                             "version %" PRIu32 " of service in %s",
-                 opt, service->version, service->config.directory_path);
+                 opt, service->config.version,
+                 service->config.directory_path);
         ret = 1;
         /* Continue the loop so we can find all possible options. */
         continue;
@@ -342,7 +343,7 @@ config_generic_service(const config_line_t *line_,
     }
     /* Version of the service. */
     if (!strcasecmp(line->key, "HiddenServiceVersion")) {
-      service->version =
+      service->config.version =
         (uint32_t) helper_parse_uint64(line->key, line->value, HS_VERSION_MIN,
                                        HS_VERSION_MAX, &ok);
       if (!ok || have_version) {
@@ -462,7 +463,7 @@ config_service(const config_line_t *line, const or_options_t *options,
   if (config_generic_service(line, options, service) < 0) {
     goto err;
   }
-  tor_assert(service->version <= HS_VERSION_MAX);
+  tor_assert(service->config.version <= HS_VERSION_MAX);
   /* Before we configure the service on a per-version basis, we'll make
    * sure that this set of options for a service are valid that is for
    * instance an option only for v2 is not used for v3. */
@@ -482,7 +483,7 @@ config_service(const config_line_t *line, const or_options_t *options,
   /* Different functions are in charge of specific options for a version. We
    * start just after the service directory line so once we hit another
    * directory line, the function knows that it has to stop parsing. */
-  switch (service->version) {
+  switch (service->config.version) {
   case HS_VERSION_TWO:
     ret = rend_config_service(line->next, options, &service->config);
     break;

src/or/hs_service.c

@@ -250,7 +250,7 @@ close_service_circuits(hs_service_t *service)
   tor_assert(service);
 
   /* Only support for version >= 3. */
-  if (BUG(service->version < HS_VERSION_THREE)) {
+  if (BUG(service->config.version < HS_VERSION_THREE)) {
     return;
   }
   /* Close intro points. */
@@ -492,8 +492,9 @@ load_service_keys(hs_service_t *service)
   ed25519_keypair_free(kp);
 
   /* Build onion address from the newly loaded keys. */
-  tor_assert(service->version <= UINT8_MAX);
+  tor_assert(service->config.version <= UINT8_MAX);
-  hs_build_address(&service->keys.identity_pk, (uint8_t) service->version,
+  hs_build_address(&service->keys.identity_pk,
+                   (uint8_t) service->config.version,
                    service->onion_address);
 
   /* Write onion address to hostname file. */
@@ -572,7 +573,7 @@ hs_service_new(const or_options_t *options)
   /* Set default configuration value. */
   set_service_default_config(&service->config, options);
   /* Set the default service version. */
-  service->version = HS_SERVICE_DEFAULT_VERSION;
+  service->config.version = HS_SERVICE_DEFAULT_VERSION;
   return service;
 }
 

src/or/hs_service.h

@@ -112,6 +112,10 @@ typedef struct hs_service_keys_t {
  * set by the configuration file or by the control port. Nothing else should
  * change those values. */
 typedef struct hs_service_config_t {
+  /* Protocol version of the service. Specified by HiddenServiceVersion
+   * option. */
+  uint32_t version;
+
   /* List of rend_service_port_config_t */
   smartlist_t *ports;
 
@@ -170,9 +174,6 @@ typedef struct hs_service_state_t {
 
 /* Representation of a service running on this tor instance. */
 typedef struct hs_service_t {
-  /* Protocol version of the service. Specified by HiddenServiceVersion. */
-  uint32_t version;
-
   /* Onion address base32 encoded and NUL terminated. We keep it for logging
    * purposes so we don't have to build it everytime. */
   char onion_address[HS_SERVICE_ADDR_LEN_BASE32 + 1];

src/test/test_hs_service.c

@@ -471,7 +471,7 @@ test_load_keys(void *arg)
   tt_assert(!tor_mem_is_zero((char *) s->keys.identity_pk.pubkey,
                              ED25519_PUBKEY_LEN));
   /* Check onion address from identity key. */
-  hs_build_address(&s->keys.identity_pk, s->version, addr);
+  hs_build_address(&s->keys.identity_pk, s->config.version, addr);
   tt_int_op(hs_address_is_valid(addr), OP_EQ, 1);
   tt_str_op(addr, OP_EQ, s->onion_address);