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authorStefan Metzmacher <metze@samba.org>2012-05-08 15:57:22 +0200
committerStefan Metzmacher <metze@samba.org>2012-06-25 20:55:05 +0200
commite09806000b31a3653f44ec65eeaf94b961ebef7a (patch)
tree664b8e3535120457d1b1ae5a57a45816d887edfb
parent47ddfe2e59998b3184d6ac5ae8af8c46d58d1a6a (diff)
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s3:librpc/idl/smbXsrv.idl: add smbXsrv_version_* structures
metze
-rw-r--r--source3/librpc/idl/smbXsrv.idl66
1 files changed, 65 insertions, 1 deletions
diff --git a/source3/librpc/idl/smbXsrv.idl b/source3/librpc/idl/smbXsrv.idl
index 5d3be78082..6452084d5c 100644
--- a/source3/librpc/idl/smbXsrv.idl
+++ b/source3/librpc/idl/smbXsrv.idl
@@ -1,5 +1,7 @@
#include "idl_types.h"
+import "server_id.idl";
+
[
uuid("07408340-ae31-11e1-97dc-539f7fddc06f"),
version(0.0),
@@ -8,5 +10,67 @@
]
interface smbXsrv
{
- void smbXsrv_dummy();
+ /*
+ * smbXsrv_version* is designed to allow
+ * rolling code upgrades in future (within a cluster).
+ *
+ * This just adds the infrastructure,
+ * but we does not implement it yet!
+ *
+ * Currently it only prevents that
+ * nodes with a different version numbers
+ * cannot run at the same time.
+ *
+ * Each node checks at startup, if the version
+ * matches the version of all other nodes.
+ * And it exits if the version does not match
+ * to avoid corruption.
+ *
+ * While it would be possible to add versioning
+ * to each of our internal databases it is easier
+ * use a dedicated database "smbXsrv_version_global.tdb"
+ * to hold the global version information.
+ *
+ * This removes extra complexity from the individual
+ * databases and allows that we add/remove databases
+ * or use different indexing keys.
+ *
+ */
+ typedef [v1_enum] enum {
+ /*
+ * NOTE: Version 0 is designed to be unstable and the format
+ * may change during development.
+ */
+ SMBXSRV_VERSION_0 = 0x00000000
+ } smbXsrv_version_values;
+
+ const uint32 SMBXSRV_VERSION_CURRENT = SMBXSRV_VERSION_0;
+
+ typedef struct {
+ server_id server_id;
+ smbXsrv_version_values min_version;
+ smbXsrv_version_values max_version;
+ smbXsrv_version_values current_version;
+ } smbXsrv_version_node0;
+
+ typedef struct {
+ [ignore] db_record *db_rec;
+ [range(1, 1024)] uint32 num_nodes;
+ smbXsrv_version_node0 nodes[num_nodes];
+ } smbXsrv_version_global0;
+
+ typedef union {
+ [case(0)] smbXsrv_version_global0 *info0;
+ [default] hyper *dummy;
+ } smbXsrv_version_globalU;
+
+ typedef [public] struct {
+ smbXsrv_version_values version;
+ uint32 seqnum;
+ [switch_is(version)] smbXsrv_version_globalU info;
+ } smbXsrv_version_globalB;
+
+ void smbXsrv_version_global_decode(
+ [in] smbXsrv_version_globalB blob
+ );
}