wallet_rpc_server: add a get_version RPC

1 files changed, 29 insertions, 0 deletions

diff --git a/src/wallet/wallet_rpc_server_commands_defs.h b/src/wallet/wallet_rpc_server_commands_defs.h
index a0f43c9b9..d44aa459f 100644
--- a/src/wallet/wallet_rpc_server_commands_defs.h
+++ b/src/wallet/wallet_rpc_server_commands_defs.h
@@ -39,6 +39,17 @@
 #undef MONERO_DEFAULT_LOG_CATEGORY
 #define MONERO_DEFAULT_LOG_CATEGORY "wallet.rpc"
 
+// When making *any* change here, bump minor
+// If the change is incompatible, then bump major and set minor to 0
+// This ensures WALLET_RPC_VERSION always increases, that every change
+// has its own version, and that clients can just test major to see
+// whether they can talk to a given wallet without having to know in
+// advance which version they will stop working with
+// Don't go over 32767 for any of these
+#define WALLET_RPC_VERSION_MAJOR 1
+#define WALLET_RPC_VERSION_MINOR 0
+#define MAKE_WALLET_RPC_VERSION(major,minor) (((major)<<16)|(minor))
+#define WALLET_RPC_VERSION MAKE_WALLET_RPC_VERSION(WALLET_RPC_VERSION_MAJOR, WALLET_RPC_VERSION_MINOR)
 namespace tools
 {
 namespace wallet_rpc
@@ -1848,5 +1859,23 @@ namespace wallet_rpc
     };
   };
 
+  struct COMMAND_RPC_GET_VERSION
+  {
+    struct request
+    {
+      BEGIN_KV_SERIALIZE_MAP()
+      END_KV_SERIALIZE_MAP()
+    };
+
+    struct response
+    {
+      uint32_t version;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(version)
+      END_KV_SERIALIZE_MAP()
+    };
+  };
+
 }
 }