drbd: Preparing the connector interface to operator on connections

Up to now it only operated on minor numbers. Now it can work also
on named connections.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

1 files changed, 15 insertions, 4 deletions

diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index 70a688b92c1b..7683b4ab6583 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -155,6 +155,7 @@ enum drbd_ret_code {
         ERR_CONG_NOT_PROTO_A    = 155,
         ERR_PIC_AFTER_DEP       = 156,
         ERR_PIC_PEER_DEP        = 157,
+        ERR_CONN_NOT_KNOWN      = 158,
 
         /* insert new ones above this line */
         AFTER_LAST_ERR_CODE
@@ -347,8 +348,11 @@ enum drbd_timeout_flag {
 
 /* Start of the new netlink/connector stuff */
 
-#define DRBD_NL_CREATE_DEVICE 0x01
-#define DRBD_NL_SET_DEFAULTS  0x02
+enum drbd_ncr_flags {
+        DRBD_NL_CREATE_DEVICE = 0x01,
+        DRBD_NL_SET_DEFAULTS =  0x02,
+};
+#define DRBD_NL_OBJ_NAME_LEN 32
 
 
 /* For searching a vacant cn_idx value */
@@ -356,8 +360,15 @@ enum drbd_timeout_flag {
 
 struct drbd_nl_cfg_req {
         int packet_type;
-        unsigned int drbd_minor;
-        int flags;
+        union {
+                struct {
+                        unsigned int drbd_minor;
+                        enum drbd_ncr_flags flags;
+                };
+                struct {
+                        char obj_name[DRBD_NL_OBJ_NAME_LEN];
+                };
+        };
         unsigned short tag_list[];
 };