Import amt.h

Impor amt.h uapi from last kernel sync point

Signed-off-by: David Ahern <dsahern@kernel.org>

diff --git a/include/uapi/linux/amt.h b/include/uapi/linux/amt.h
new file mode 100644 (file)
index 0000000..32aa2a0
--- /dev/null
+++ b/include/uapi/linux/amt.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
+/*
+ * Copyright (c) 2021 Taehee Yoo <ap420073@gmail.com>
+ */
+#ifndef _AMT_H_
+#define _AMT_H_
+
+enum ifla_amt_mode {
+       /* AMT interface works as Gateway mode.
+        * The Gateway mode encapsulates IGMP/MLD traffic and decapsulates
+        * multicast traffic.
+        */
+       AMT_MODE_GATEWAY = 0,
+       /* AMT interface works as Relay mode.
+        * The Relay mode encapsulates multicast traffic and decapsulates
+        * IGMP/MLD traffic.
+        */
+       AMT_MODE_RELAY,
+       __AMT_MODE_MAX,
+};
+
+#define AMT_MODE_MAX (__AMT_MODE_MAX - 1)
+
+enum {
+       IFLA_AMT_UNSPEC,
+       /* This attribute specify mode etier Gateway or Relay. */
+       IFLA_AMT_MODE,
+       /* This attribute specify Relay port.
+        * AMT interface is created as Gateway mode, this attribute is used
+        * to specify relay(remote) port.
+        * AMT interface is created as Relay mode, this attribute is used
+        * as local port.
+        */
+       IFLA_AMT_RELAY_PORT,
+       /* This attribute specify Gateway port.
+        * AMT interface is created as Gateway mode, this attribute is used
+        * as local port.
+        * AMT interface is created as Relay mode, this attribute is not used.
+        */
+       IFLA_AMT_GATEWAY_PORT,
+       /* This attribute specify physical device */
+       IFLA_AMT_LINK,
+       /* This attribute specify local ip address */
+       IFLA_AMT_LOCAL_IP,
+       /* This attribute specify Relay ip address.
+        * So, this is not used by Relay.
+        */
+       IFLA_AMT_REMOTE_IP,
+       /* This attribute specify Discovery ip address.
+        * When Gateway get started, it send discovery message to find the
+        * Relay's ip address.
+        * So, this is not used by Relay.
+        */
+       IFLA_AMT_DISCOVERY_IP,
+       /* This attribute specify number of maximum tunnel. */
+       IFLA_AMT_MAX_TUNNELS,
+       __IFLA_AMT_MAX,
+};
+
+#define IFLA_AMT_MAX (__IFLA_AMT_MAX - 1)
+
+#endif /* _AMT_H_ */