preflight: Check platform before attempting to preflight

1 files changed, 25 insertions, 7 deletions

diff --git a/src/preflight.c b/src/preflight.c
index e58a2d6..6a303c2 100644
--- a/src/preflight.c
+++ b/src/preflight.c
@@ -148,6 +148,7 @@ static void* preflight_worker_handle_device_add(void* userdata)
 
         plist_t value = NULL;
         char* version_str = NULL;
+        char* platform_str = NULL;
 
         usbmuxd_log(LL_INFO, "%s: Starting preflight on device %s...", __func__, _dev->udid);
 
@@ -220,16 +221,35 @@ retry:
         if (value && plist_get_node_type(value) == PLIST_STRING) {
                 plist_get_string_val(value, &version_str);
         }
+        plist_free(value);
 
         if (!version_str) {
                 usbmuxd_log(LL_ERROR, "%s: Could not get ProductVersion string from device %s handle %d", __func__, _dev->udid, (int)(long)_dev->conn_data);
                 goto leave;
         }
 
+        lerr = lockdownd_get_value(lockdown, NULL, "ProductName", &value);
+        if (lerr != LOCKDOWN_E_SUCCESS) {
+                usbmuxd_log(LL_ERROR, "%s: ERROR: Could not get ProductName from device %s, lockdown error %d", __func__, _dev->udid, lerr);
+                goto leave;
+        }
+        if (value && plist_get_node_type(value) == PLIST_STRING) {
+                plist_get_string_val(value, &platform_str);
+        }
+        plist_free(value);
+
+        if (!platform_str) {
+                usbmuxd_log(LL_ERROR, "%s: Could not get ProductName string from device %s handle %d", __func__, _dev->udid, (int)(long)_dev->conn_data);
+                goto leave;
+        }
+
         int version_major = strtol(version_str, NULL, 10);
-        if (version_major >= 7) {
-                /* iOS 7.0 and later */
-                usbmuxd_log(LL_INFO, "%s: Found ProductVersion %s device %s", __func__, version_str, _dev->udid);
+        if ((!strcmp(platform_str, "iPhone OS") && version_major >= 7)
+            || ((!strcmp(platform_str, "watchOS") || !strcmp(platform_str, "Watch OS")) && version_major >= 2)
+            || (!strcmp(platform_str, "Apple TVOS") && version_major >= 9)
+        ) {
+                /* iOS 7.0 / watchOS 2.0 / tvOS 9.0 and later */
+                usbmuxd_log(LL_INFO, "%s: Found %s %s device %s", __func__, platform_str, version_str, _dev->udid);
 
                 lockdownd_set_untrusted_host_buid(lockdown);
 
@@ -336,10 +356,8 @@ retry:
         }
 
 leave:
-        if (value)
-                plist_free(value);
-        if (version_str)
-                free(version_str);
+        free(platform_str);
+        free(version_str);
         if (lockdown)
                 lockdownd_client_free(lockdown);
         if (dev)