Illumos #2762: zpool command should have better support for feature flags

[zfs.git] / lib / libzfs / libzfs_status.c

diff --git a/lib/libzfs/libzfs_status.c b/lib/libzfs/libzfs_status.c
index ef6a641..e6e9230 100644 (file)
--- a/lib/libzfs/libzfs_status.c
+++ b/lib/libzfs/libzfs_status.c
@@ -44,6 +44,7 @@
 #include <string.h>
 #include <unistd.h>
 #include "libzfs_impl.h"
+#include "zfeature_common.h"
 
 /*
  * Message ID table.  This must be kept in sync with the ZPOOL_STATUS_* defines
@@ -320,6 +321,30 @@ check_status(nvlist_t *config, boolean_t isimport)
        if (SPA_VERSION_IS_SUPPORTED(version) && version != SPA_VERSION)
                return (ZPOOL_STATUS_VERSION_OLDER);
 
+       /*
+        * Usable pool with disabled features
+        */
+       if (version >= SPA_VERSION_FEATURES) {
+               int i;
+               nvlist_t *feat;
+
+               if (isimport) {
+                       feat = fnvlist_lookup_nvlist(config,
+                           ZPOOL_CONFIG_LOAD_INFO);
+                       feat = fnvlist_lookup_nvlist(feat,
+                           ZPOOL_CONFIG_ENABLED_FEAT);
+               } else {
+                       feat = fnvlist_lookup_nvlist(config,
+                           ZPOOL_CONFIG_FEATURE_STATS);
+               }
+
+               for (i = 0; i < SPA_FEATURES; i++) {
+                       zfeature_info_t *fi = &spa_feature_table[i];
+                       if (!nvlist_exists(feat, fi->fi_guid))
+                               return (ZPOOL_STATUS_FEAT_DISABLED);
+               }
+       }
+
        return (ZPOOL_STATUS_OK);
 }