[CAN]: Allocate protocol numbers for PF_CAN

This patch adds a protocol/address family number, ARP hardware type,
ethernet packet type, and a line discipline number for the SocketCAN
implementation.

Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 11 insertions, 4 deletions

diff --git a/include/linux/if.h b/include/linux/if.h
index 32bf419351f1..186070d5c544 100644
--- a/include/linux/if.h
+++ b/include/linux/if.h
@@ -50,7 +50,9 @@
 #define IFF_LOWER_UP    0x10000         /* driver signals L1 up         */
 #define IFF_DORMANT     0x20000         /* driver signals dormant       */
 
-#define IFF_VOLATILE    (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|\
+#define IFF_ECHO        0x40000         /* echo sent packets            */
+
+#define IFF_VOLATILE    (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
                 IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
 
 /* Private (from user) interface flags (netdevice->priv_flags). */
diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h
index ed7b93c3083a..296e8e86e91d 100644
--- a/include/linux/if_arp.h
+++ b/include/linux/if_arp.h
@@ -52,6 +52,7 @@
 #define ARPHRD_ROSE     270
 #define ARPHRD_X25      271             /* CCITT X.25                   */
 #define ARPHRD_HWX25    272             /* Boards with X.25 in firmware */
+#define ARPHRD_CAN      280             /* Controller Area Network      */
 #define ARPHRD_PPP      512
 #define ARPHRD_CISCO    513             /* Cisco HDLC                   */
 #define ARPHRD_HDLC     ARPHRD_CISCO
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index 5f9297793661..cc002cbbdc26 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -90,6 +90,7 @@
 #define ETH_P_WAN_PPP   0x0007          /* Dummy type for WAN PPP frames*/
 #define ETH_P_PPP_MP    0x0008          /* Dummy type for PPP MP frames */
 #define ETH_P_LOCALTALK 0x0009          /* Localtalk pseudo type        */
+#define ETH_P_CAN       0x000C          /* Controller Area Network      */
 #define ETH_P_PPPTALK   0x0010          /* Dummy type for Atalk over PPP*/
 #define ETH_P_TR_802_2  0x0011          /* 802.2 frames                 */
 #define ETH_P_MOBITEX   0x0015          /* Mobitex (kaz@cafe.net)       */
diff --git a/include/linux/socket.h b/include/linux/socket.h
index c22ef1c1afb8..eb5bdd59a644 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -185,6 +185,7 @@ struct ucred {
 #define AF_PPPOX        24      /* PPPoX sockets                */
 #define AF_WANPIPE      25      /* Wanpipe API Sockets */
 #define AF_LLC          26      /* Linux LLC                    */
+#define AF_CAN          29      /* Controller Area Network      */
 #define AF_TIPC         30      /* TIPC sockets                 */
 #define AF_BLUETOOTH    31      /* Bluetooth sockets            */
 #define AF_IUCV         32      /* IUCV sockets                 */
@@ -220,6 +221,7 @@ struct ucred {
 #define PF_PPPOX        AF_PPPOX
 #define PF_WANPIPE      AF_WANPIPE
 #define PF_LLC          AF_LLC
+#define PF_CAN          AF_CAN
 #define PF_TIPC         AF_TIPC
 #define PF_BLUETOOTH    AF_BLUETOOTH
 #define PF_IUCV         AF_IUCV
diff --git a/include/linux/tty.h b/include/linux/tty.h
index defd2ab72449..402de892b3ed 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -23,7 +23,7 @@
  */
 #define NR_UNIX98_PTY_DEFAULT   4096      /* Default maximum for Unix98 ptys */
 #define NR_UNIX98_PTY_MAX       (1 << MINORBITS) /* Absolute limit */
-#define NR_LDISCS               17
+#define NR_LDISCS               18
 
 /* line disciplines */
 #define N_TTY           0
@@ -44,6 +44,7 @@
 #define N_SYNC_PPP      14      /* synchronous PPP */
 #define N_HCI           15      /* Bluetooth HCI UART */
 #define N_GIGASET_M101  16      /* Siemens Gigaset M101 serial DECT adapter */
+#define N_SLCAN         17      /* Serial / USB serial CAN Adaptors */
 
 /*
  * This character is the same as _POSIX_VDISABLE: it cannot be used as
diff --git a/net/core/sock.c b/net/core/sock.c
index 98b243a5b323..c9305a861760 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -154,7 +154,7 @@ static const char *af_family_key_strings[AF_MAX+1] = {
   "sk_lock-AF_ASH"   , "sk_lock-AF_ECONET"   , "sk_lock-AF_ATMSVC"   ,
   "sk_lock-21"       , "sk_lock-AF_SNA"      , "sk_lock-AF_IRDA"     ,
   "sk_lock-AF_PPPOX" , "sk_lock-AF_WANPIPE"  , "sk_lock-AF_LLC"      ,
-  "sk_lock-27"       , "sk_lock-28"          , "sk_lock-29"          ,
+  "sk_lock-27"       , "sk_lock-28"          , "sk_lock-AF_CAN"      ,
   "sk_lock-AF_TIPC"  , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV"        ,
   "sk_lock-AF_RXRPC" , "sk_lock-AF_MAX"
 };
@@ -168,7 +168,7 @@ static const char *af_family_slock_key_strings[AF_MAX+1] = {
   "slock-AF_ASH"   , "slock-AF_ECONET"   , "slock-AF_ATMSVC"   ,
   "slock-21"       , "slock-AF_SNA"      , "slock-AF_IRDA"     ,
   "slock-AF_PPPOX" , "slock-AF_WANPIPE"  , "slock-AF_LLC"      ,
-  "slock-27"       , "slock-28"          , "slock-29"          ,
+  "slock-27"       , "slock-28"          , "slock-AF_CAN"      ,
   "slock-AF_TIPC"  , "slock-AF_BLUETOOTH", "slock-AF_IUCV"     ,
   "slock-AF_RXRPC" , "slock-AF_MAX"
 };