[AX.25]: Fix default address and broadcast address initialization.

Only the callsign but not the SSID part of an AX.25 address is ASCII
based but Linux by initializes the SSID which should be just a 4-bit
number from ASCII anyway.

Fix that and convert the code to use a shared constant for both default
addresses.  While at it, use the same style for null_ax25_address also.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 files changed, 31 insertions, 71 deletions

diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 92420f007b97..760d04a671f9 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -325,11 +325,6 @@ static int sp_rebuild_header(struct sk_buff *skb)
 
 static void sp_setup(struct net_device *dev)
 {
-        static char ax25_bcast[AX25_ADDR_LEN] =
-                {'Q'<<1,'S'<<1,'T'<<1,' '<<1,' '<<1,' '<<1,'0'<<1};
-        static char ax25_test[AX25_ADDR_LEN] =
-                {'L'<<1,'I'<<1,'N'<<1,'U'<<1,'X'<<1,' '<<1,'1'<<1};
-
         /* Finish setting up the DEVICE info. */
         dev->mtu                = SIXP_MTU;
         dev->hard_start_xmit    = sp_xmit;
@@ -347,8 +342,8 @@ static void sp_setup(struct net_device *dev)
         dev->tx_timeout         = NULL;
 
         /* Only activated in AX.25 mode */
-        memcpy(dev->broadcast, ax25_bcast, AX25_ADDR_LEN);
-        memcpy(dev->dev_addr, ax25_test, AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
+        memcpy(dev->dev_addr, &ax25_defaddr, AX25_ADDR_LEN);
 
         SET_MODULE_OWNER(dev);
 
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index 3c33d6f6a6a6..8a83db0fb3b7 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c
@@ -1141,12 +1141,6 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
  */
 static void baycom_probe(struct net_device *dev)
 {
-        static char ax25_bcast[AX25_ADDR_LEN] = {
-                'Q' << 1, 'S' << 1, 'T' << 1, ' ' << 1, ' ' << 1, ' ' << 1, '0' << 1
-        };
-        static char ax25_nocall[AX25_ADDR_LEN] = {
-                'L' << 1, 'I' << 1, 'N' << 1, 'U' << 1, 'X' << 1, ' ' << 1, '1' << 1
-        };
         const struct hdlcdrv_channel_params dflt_ch_params = { 
                 20, 2, 10, 40, 0 
         };
@@ -1182,8 +1176,8 @@ static void baycom_probe(struct net_device *dev)
         dev->hard_header_len = AX25_MAX_HEADER_LEN + AX25_BPQ_HEADER_LEN;
         dev->mtu = AX25_DEF_PACLEN;        /* eth_mtu is the default */
         dev->addr_len = AX25_ADDR_LEN;     /* sizeof an ax.25 address */
-        memcpy(dev->broadcast, ax25_bcast, AX25_ADDR_LEN);
-        memcpy(dev->dev_addr, ax25_nocall, AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
+        memcpy(dev->dev_addr, &ax25_nocall, AX25_ADDR_LEN);
         dev->tx_queue_len = 16;
 
         /* New style flags */
diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index 889f338132fa..5b788d84011f 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -88,11 +88,6 @@
 
 static char banner[] __initdata = KERN_INFO "AX.25: bpqether driver version 004\n";
 
-static unsigned char ax25_bcast[AX25_ADDR_LEN] =
-        {'Q' << 1, 'S' << 1, 'T' << 1, ' ' << 1, ' ' << 1, ' ' << 1, '0' << 1};
-static unsigned char ax25_defaddr[AX25_ADDR_LEN] =
-        {'L' << 1, 'I' << 1, 'N' << 1, 'U' << 1, 'X' << 1, ' ' << 1, '1' << 1};
-
 static char bcast_addr[6]={0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
 
 static char bpq_eth_addr[6];
@@ -487,8 +482,8 @@ static void bpq_setup(struct net_device *dev)
         dev->do_ioctl        = bpq_ioctl;
         dev->destructor      = free_netdev;
 
-        memcpy(dev->broadcast, ax25_bcast, AX25_ADDR_LEN);
-        memcpy(dev->dev_addr,  ax25_defaddr, AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
+        memcpy(dev->dev_addr,  &ax25_defaddr, AX25_ADDR_LEN);
 
         dev->flags      = 0;
 
diff --git a/drivers/net/hamradio/dmascc.c b/drivers/net/hamradio/dmascc.c
index e6e721aff6f6..0fbb414b5a4d 100644
--- a/drivers/net/hamradio/dmascc.c
+++ b/drivers/net/hamradio/dmascc.c
@@ -264,12 +264,6 @@ static int io[MAX_NUM_DEVS] __initdata = { 0, };
 
 /* Beware! hw[] is also used in cleanup_module(). */
 static struct scc_hardware hw[NUM_TYPES] __initdata_or_module = HARDWARE;
-static char ax25_broadcast[7] __initdata =
-    { 'Q' << 1, 'S' << 1, 'T' << 1, ' ' << 1, ' ' << 1, ' ' << 1,
-'0' << 1 };
-static char ax25_test[7] __initdata =
-    { 'L' << 1, 'I' << 1, 'N' << 1, 'U' << 1, 'X' << 1, ' ' << 1,
-'1' << 1 };
 
 
 /* Global variables */
@@ -443,8 +437,8 @@ static void __init dev_setup(struct net_device *dev)
         dev->mtu = 1500;
         dev->addr_len = AX25_ADDR_LEN;
         dev->tx_queue_len = 64;
-        memcpy(dev->broadcast, ax25_broadcast, AX25_ADDR_LEN);
-        memcpy(dev->dev_addr, ax25_test, AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
+        memcpy(dev->dev_addr, &ax25_defaddr, AX25_ADDR_LEN);
 }
 
 static int __init setup_adapter(int card_base, int type, int n)
diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c
index dacc7687b97f..452873e7c68f 100644
--- a/drivers/net/hamradio/hdlcdrv.c
+++ b/drivers/net/hamradio/hdlcdrv.c
@@ -63,18 +63,6 @@
 
 /* --------------------------------------------------------------------- */
 
-/*
- * The name of the card. Is used for messages and in the requests for
- * io regions, irqs and dma channels
- */
-
-static char ax25_bcast[AX25_ADDR_LEN] =
-{'Q' << 1, 'S' << 1, 'T' << 1, ' ' << 1, ' ' << 1, ' ' << 1, '0' << 1};
-static char ax25_nocall[AX25_ADDR_LEN] =
-{'L' << 1, 'I' << 1, 'N' << 1, 'U' << 1, 'X' << 1, ' ' << 1, '1' << 1};
-
-/* --------------------------------------------------------------------- */
-
 #define KISS_VERBOSE
 
 /* --------------------------------------------------------------------- */
@@ -709,8 +697,8 @@ static void hdlcdrv_setup(struct net_device *dev)
         dev->hard_header_len = AX25_MAX_HEADER_LEN + AX25_BPQ_HEADER_LEN;
         dev->mtu = AX25_DEF_PACLEN;        /* eth_mtu is the default */
         dev->addr_len = AX25_ADDR_LEN;     /* sizeof an ax.25 address */
-        memcpy(dev->broadcast, ax25_bcast, AX25_ADDR_LEN);
-        memcpy(dev->dev_addr, ax25_nocall, AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
+        memcpy(dev->dev_addr, &ax25_defaddr, AX25_ADDR_LEN);
         dev->tx_queue_len = 16;
 }
 
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index d8715b200c17..d08fbc396648 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -672,11 +672,6 @@ static struct net_device_stats *ax_get_stats(struct net_device *dev)
 
 static void ax_setup(struct net_device *dev)
 {
-        static char ax25_bcast[AX25_ADDR_LEN] =
-                {'Q'<<1,'S'<<1,'T'<<1,' '<<1,' '<<1,' '<<1,'0'<<1};
-        static char ax25_test[AX25_ADDR_LEN] =
-                {'L'<<1,'I'<<1,'N'<<1,'U'<<1,'X'<<1,' '<<1,'1'<<1};
-
         /* Finish setting up the DEVICE info. */
         dev->mtu             = AX_MTU;
         dev->hard_start_xmit = ax_xmit;
@@ -691,8 +686,8 @@ static void ax_setup(struct net_device *dev)
         dev->hard_header     = ax_header;
         dev->rebuild_header  = ax_rebuild_header;
 
-        memcpy(dev->broadcast, ax25_bcast, AX25_ADDR_LEN);
-        memcpy(dev->dev_addr,  ax25_test,  AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
+        memcpy(dev->dev_addr,  &ax25_defaddr,  AX25_ADDR_LEN);
 
         dev->flags      = IFF_BROADCAST | IFF_MULTICAST;
 }
diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c
index ec9b6d9b6f05..2ce047e9d262 100644
--- a/drivers/net/hamradio/scc.c
+++ b/drivers/net/hamradio/scc.c
@@ -1540,11 +1540,6 @@ static int scc_net_alloc(const char *name, struct scc_channel *scc)
 /* *                        Network driver methods                    * */
 /* ******************************************************************** */
 
-static unsigned char ax25_bcast[AX25_ADDR_LEN] =
-{'Q' << 1, 'S' << 1, 'T' << 1, ' ' << 1, ' ' << 1, ' ' << 1, '0' << 1};
-static unsigned char ax25_nocall[AX25_ADDR_LEN] =
-{'L' << 1, 'I' << 1, 'N' << 1, 'U' << 1, 'X' << 1, ' ' << 1, '1' << 1};
-
 /* ----> Initialize device <----- */
 
 static void scc_net_setup(struct net_device *dev)
@@ -1562,8 +1557,8 @@ static void scc_net_setup(struct net_device *dev)
         dev->do_ioctl        = scc_net_ioctl;
         dev->tx_timeout      = NULL;
 
-        memcpy(dev->broadcast, ax25_bcast,  AX25_ADDR_LEN);
-        memcpy(dev->dev_addr,  ax25_nocall, AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast,  AX25_ADDR_LEN);
+        memcpy(dev->dev_addr,  &ax25_defaddr, AX25_ADDR_LEN);
  
         dev->flags      = 0;
 
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 3c4455bd466d..6d74f08720d5 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -156,11 +156,6 @@ static struct net_device *yam_devs[NR_PORTS];
 
 static struct yam_mcs *yam_data;
 
-static char ax25_bcast[7] =
-{'Q' << 1, 'S' << 1, 'T' << 1, ' ' << 1, ' ' << 1, ' ' << 1, '0' << 1};
-static char ax25_test[7] =
-{'L' << 1, 'I' << 1, 'N' << 1, 'U' << 1, 'X' << 1, ' ' << 1, '1' << 1};
-
 static DEFINE_TIMER(yam_timer, NULL, 0, 0);
 
 /* --------------------------------------------------------------------- */
@@ -1115,8 +1110,8 @@ static void yam_setup(struct net_device *dev)
         dev->hard_header_len = AX25_MAX_HEADER_LEN;
         dev->mtu = AX25_MTU;
         dev->addr_len = AX25_ADDR_LEN;
-        memcpy(dev->broadcast, ax25_bcast, AX25_ADDR_LEN);
-        memcpy(dev->dev_addr, ax25_test, AX25_ADDR_LEN);
+        memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
+        memcpy(dev->dev_addr, &ax25_defaddr, AX25_ADDR_LEN);
 }
 
 static int __init yam_init_driver(void)
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 41acb093caae..e1d116f11923 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -282,9 +282,9 @@ extern void ax25_fillin_cb(ax25_cb *, ax25_dev *);
 extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *);
 
 /* ax25_addr.c */
-extern ax25_address null_ax25_address;
-extern char *ax2asc(char *buf, const ax25_address *);
-extern void asc2ax(ax25_address *addr, const char *callsign);
+extern const ax25_address ax25_bcast;
+extern const ax25_address ax25_defaddr;
+extern const ax25_address null_ax25_address;
 extern int ax25cmp(const ax25_address *, const ax25_address *);
 extern int ax25digicmp(const ax25_digi *, const ax25_digi *);
 extern const unsigned char *ax25_addr_parse(const unsigned char *, int,
diff --git a/net/ax25/ax25_addr.c b/net/ax25/ax25_addr.c
index 5524f9cb7b83..21a0616152fc 100644
--- a/net/ax25/ax25_addr.c
+++ b/net/ax25/ax25_addr.c
@@ -29,11 +29,20 @@
 #include <linux/interrupt.h>
 
 /*
- *      The null address is defined as a callsign of all spaces with an
- *      SSID of zero.
+ * The default broadcast address of an interface is QST-0; the default address
+ * is LINUX-1.  The null address is defined as a callsign of all spaces with
+ * an SSID of zero.
  */
-ax25_address null_ax25_address = {{0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x00}};
 
+const ax25_address ax25_bcast =
+        {{'Q' << 1, 'S' << 1, 'T' << 1, ' ' << 1, ' ' << 1, ' ' << 1, 0 << 1}};
+const ax25_address ax25_defaddr =
+        {{'L' << 1, 'I' << 1, 'N' << 1, 'U' << 1, 'X' << 1, ' ' << 1, 1 << 1}};
+const ax25_address null_ax25_address =
+        {{' ' << 1, ' ' << 1, ' ' << 1, ' ' << 1, ' ' << 1, ' ' << 1, 0 << 1}};
+
+EXPORT_SYMBOL_GPL(ax25_bcast);
+EXPORT_SYMBOL_GPL(ax25_defaddr);
 EXPORT_SYMBOL(null_ax25_address);
 
 /*