[RFC 2/3 net] lorawan: Add macro and definition for LoRaWAN class modlue

[Jian-Hong Pan]

This patch add the macro and definition for the implementation of
LoRaWAN protocol.

Signed-off-by: Jian-Hong Pan <starnight@xxxxxxxxxxxx>
---
 include/linux/socket.h              | 5 ++++-
 include/uapi/linux/if_arp.h         | 1 +
 include/uapi/linux/if_ether.h       | 1 +
 net/core/dev.c                      | 4 ++--
 security/selinux/hooks.c            | 4 +++-
 security/selinux/include/classmap.h | 4 +++-
 6 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/include/linux/socket.h b/include/linux/socket.h
index aa1e288b1659..e5c8381fd1aa 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -209,8 +209,9 @@ struct ucred {
 				 */
 #define AF_XDP		44	/* XDP sockets			*/
 #define AF_LORA		45	/* LoRa sockets			*/
+#define AF_LORAWAN	46	/* LoRaWAN sockets			*/
 
-#define AF_MAX		46	/* For now.. */
+#define AF_MAX		47	/* For now.. */
 
 /* Protocol families, same as address families. */
 #define PF_UNSPEC	AF_UNSPEC
@@ -261,6 +262,7 @@ struct ucred {
 #define PF_SMC		AF_SMC
 #define PF_XDP		AF_XDP
 #define PF_LORA		AF_LORA
+#define PF_LORAWAN	AF_LORAWAN
 #define PF_MAX		AF_MAX
 
 /* Maximum queue length specifiable by listen.  */
@@ -343,6 +345,7 @@ struct ucred {
 #define SOL_KCM		281
 #define SOL_TLS		282
 #define SOL_XDP		283
+#define SOL_LORAWAN	284
 
 /* IPX options */
 #define IPX_TYPE	1
diff --git a/include/uapi/linux/if_arp.h b/include/uapi/linux/if_arp.h
index 1ed7cb3f2129..2376f7839355 100644
--- a/include/uapi/linux/if_arp.h
+++ b/include/uapi/linux/if_arp.h
@@ -99,6 +99,7 @@
 #define ARPHRD_6LOWPAN	825		/* IPv6 over LoWPAN             */
 #define ARPHRD_VSOCKMON	826		/* Vsock monitor header		*/
 #define ARPHRD_LORA	827		/* LoRa				*/
+#define ARPHRD_LORAWAN	828		/* LoRaWAN			*/
 
 #define ARPHRD_VOID	  0xFFFF	/* Void type, nothing is known */
 #define ARPHRD_NONE	  0xFFFE	/* zero header length */
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 45644dcf5b39..b1ac70d4a377 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -148,6 +148,7 @@
 					 * aggregation protocol
 					 */
 #define ETH_P_LORA	0x00FA		/* LoRa				*/
+#define ETH_P_LORAWAN	0x00FB		/* LoRaWAN			*/
 
 /*
  *	This is an Ethernet frame header.
diff --git a/net/core/dev.c b/net/core/dev.c
index f68122f0ab02..b95ce79ec5a8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -297,7 +297,7 @@ static const unsigned short netdev_lock_type[] = {
 	 ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
 	 ARPHRD_FCFABRIC, ARPHRD_IEEE80211, ARPHRD_IEEE80211_PRISM,
 	 ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET, ARPHRD_PHONET_PIPE,
-	 ARPHRD_IEEE802154, ARPHRD_VOID, ARPHRD_NONE};
+	 ARPHRD_IEEE802154, ARPHRD_LORAWAN, ARPHRD_VOID, ARPHRD_NONE};
 
 static const char *const netdev_lock_name[] = {
 	"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
@@ -314,7 +314,7 @@ static const char *const netdev_lock_name[] = {
 	"_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
 	"_xmit_FCFABRIC", "_xmit_IEEE80211", "_xmit_IEEE80211_PRISM",
 	"_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET", "_xmit_PHONET_PIPE",
-	"_xmit_IEEE802154", "_xmit_VOID", "_xmit_NONE"};
+	"_xmit_IEEE802154", "_xmit_LORAWAN", "_xmit_VOID", "_xmit_NONE"};
 
 static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
 static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)];
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index aaf520a689d8..0da3a1d69cb8 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1477,7 +1477,9 @@ static inline u16 socket_type_to_security_class(int family, int type, int protoc
 			return SECCLASS_XDP_SOCKET;
 		case PF_LORA:
 			return SECCLASS_LORA_SOCKET;
-#if PF_MAX > 46
+		case PF_LORAWAN:
+			return SECCLASS_LORAWAN_SOCKET;
+#if PF_MAX > 47
 #error New address family defined, please update this function.
 #endif
 		}
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index 060d4bf8385e..fa0151fe6f32 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -244,9 +244,11 @@ struct security_class_mapping secclass_map[] = {
 	  { COMMON_SOCK_PERMS, NULL } },
 	{ "lora_socket",
 	  { COMMON_SOCK_PERMS, NULL } },
+	{ "lorawan_socket",
+	  { COMMON_SOCK_PERMS, NULL } },
 	{ NULL }
   };
 
-#if PF_MAX > 46
+#if PF_MAX > 47
 #error New address family defined, please update secclass_map.
 #endif
-- 
2.18.0