[AX25]: Make ax2asc thread-proof

[linux-2.6] / include / net / ax25.h

diff --git a/include/net/ax25.h b/include/net/ax25.h
index fb95ecb6fe0357de875dd66896b4d48a731927d4..364b046e9f478b545316236d592bf29039c3fad2 100644 (file)
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -139,11 +139,25 @@ enum {
 #define AX25_DEF_DS_TIMEOUT    (3 * 60 * HZ)           /* DAMA timeout 3 minutes */
 
 typedef struct ax25_uid_assoc {
-       struct ax25_uid_assoc   *next;
+       struct hlist_node       uid_node;
+       atomic_t                refcount;
        uid_t                   uid;
        ax25_address            call;
 } ax25_uid_assoc;
 
+#define ax25_uid_for_each(__ax25, node, list) \
+       hlist_for_each_entry(__ax25, node, list, uid_node)
+
+#define ax25_uid_hold(ax25) \
+       atomic_inc(&((ax25)->refcount))
+
+static inline void ax25_uid_put(ax25_uid_assoc *assoc)
+{
+       if (atomic_dec_and_test(&assoc->refcount)) {
+               kfree(assoc);
+       }
+}
+
 typedef struct {
        ax25_address            calls[AX25_MAX_DIGIS];
        unsigned char           repeated[AX25_MAX_DIGIS];
@@ -220,6 +234,14 @@ static __inline__ void ax25_cb_put(ax25_cb *ax25)
        }
 }
 
+static inline __be16 ax25_type_trans(struct sk_buff *skb, struct net_device *dev)
+{
+       skb->dev      = dev;
+       skb->pkt_type = PACKET_HOST;
+       skb->mac.raw  = skb->data;
+       return htons(ETH_P_AX25);
+}
+
 /* af_ax25.c */
 extern struct hlist_head ax25_list;
 extern spinlock_t ax25_list_lock;
@@ -235,7 +257,7 @@ extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *);
 
 /* ax25_addr.c */
 extern ax25_address null_ax25_address;
-extern char *ax2asc(ax25_address *);
+extern char *ax2asc(char *buf, ax25_address *);
 extern ax25_address *asc2ax(char *);
 extern int  ax25cmp(ax25_address *, ax25_address *);
 extern int  ax25digicmp(ax25_digi *, ax25_digi *);
@@ -294,7 +316,7 @@ extern int  ax25_protocol_is_registered(unsigned int);
 
 /* ax25_in.c */
 extern int  ax25_rx_iframe(ax25_cb *, struct sk_buff *);
-extern int  ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *);
+extern int  ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
 
 /* ax25_ip.c */
 extern int  ax25_encapsulate(struct sk_buff *, struct net_device *, unsigned short, void *, void *, unsigned int);
@@ -305,7 +327,7 @@ extern ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_addr
 extern void ax25_output(ax25_cb *, int, struct sk_buff *);
 extern void ax25_kick(ax25_cb *);
 extern void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int);
-extern void ax25_queue_xmit(struct sk_buff *);
+extern void ax25_queue_xmit(struct sk_buff *skb, struct net_device *dev);
 extern int  ax25_check_iframes_acked(ax25_cb *, unsigned short);
 
 /* ax25_route.c */
@@ -368,7 +390,7 @@ extern unsigned long ax25_display_timer(struct timer_list *);
 
 /* ax25_uid.c */
 extern int  ax25_uid_policy;
-extern ax25_address *ax25_findbyuid(uid_t);
+extern ax25_uid_assoc *ax25_findbyuid(uid_t);
 extern int  ax25_uid_ioctl(int, struct sockaddr_ax25 *);
 extern struct file_operations ax25_uid_fops;
 extern void ax25_uid_free(void);