[XFRM]: Introduce XFRM_MSG_REPORT.

XFRM_MSG_REPORT is a message as notification of state protocol and
selector from kernel to user-space.

Mobile IPv6 will use it when inbound reject is occurred at route
optimization to make user-space know a binding error requirement.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index 1d8c1f22c12d..4009f4445fa9 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -166,6 +166,10 @@ enum {
 #define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
         XFRM_MSG_GETAE,
 #define XFRM_MSG_GETAE XFRM_MSG_GETAE
+
+        XFRM_MSG_REPORT,
+#define XFRM_MSG_REPORT XFRM_MSG_REPORT
+
         __XFRM_MSG_MAX
 };
 #define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
@@ -325,12 +329,18 @@ struct xfrm_usersa_flush {
         __u8                            proto;
 };
 
+struct xfrm_user_report {
+        __u8                            proto;
+        struct xfrm_selector            sel;
+};
+
 #ifndef __KERNEL__
 /* backwards compatibility for userspace */
 #define XFRMGRP_ACQUIRE         1
 #define XFRMGRP_EXPIRE          2
 #define XFRMGRP_SA              4
 #define XFRMGRP_POLICY          8
+#define XFRMGRP_REPORT          0x10
 #endif
 
 enum xfrm_nlgroups {
@@ -346,6 +356,8 @@ enum xfrm_nlgroups {
 #define XFRMNLGRP_POLICY        XFRMNLGRP_POLICY
         XFRMNLGRP_AEVENTS,
 #define XFRMNLGRP_AEVENTS       XFRMNLGRP_AEVENTS
+        XFRMNLGRP_REPORT,
+#define XFRMNLGRP_REPORT        XFRMNLGRP_REPORT
         __XFRMNLGRP_MAX
 };
 #define XFRMNLGRP_MAX   (__XFRMNLGRP_MAX - 1)