Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / net / llc.h

diff --git a/include/net/llc.h b/include/net/llc.h
index c9aed2a..f502458 100644 (file)
--- a/include/net/llc.h
+++ b/include/net/llc.h
@@ -17,6 +17,8 @@
 #include <linux/list.h>
 #include <linux/spinlock.h>
 
+#include <asm/atomic.h>
+
 struct net_device;
 struct packet_type;
 struct sk_buff;
@@ -44,9 +46,11 @@ struct llc_sap {
        unsigned char    state;
        unsigned char    p_bit;
        unsigned char    f_bit;
+       atomic_t         refcnt;
        int              (*rcv_func)(struct sk_buff *skb,
                                     struct net_device *dev,
-                                    struct packet_type *pt);
+                                    struct packet_type *pt,
+                                    struct net_device *orig_dev);
        struct llc_addr  laddr;
        struct list_head node;
        struct {
@@ -64,10 +68,10 @@ extern rwlock_t llc_sap_list_lock;
 extern unsigned char llc_station_mac_sa[ETH_ALEN];
 
 extern int llc_rcv(struct sk_buff *skb, struct net_device *dev,
-                  struct packet_type *pt);
+                  struct packet_type *pt, struct net_device *orig_dev);
 
 extern int llc_mac_hdr_init(struct sk_buff *skb,
-                           unsigned char *sa, unsigned char *da);
+                           const unsigned char *sa, const unsigned char *da);
 
 extern void llc_add_pack(int type, void (*handler)(struct llc_sap *sap,
                                                   struct sk_buff *skb));
@@ -78,14 +82,29 @@ extern void llc_set_station_handler(void (*handler)(struct sk_buff *skb));
 extern struct llc_sap *llc_sap_open(unsigned char lsap,
                                    int (*rcv)(struct sk_buff *skb,
                                               struct net_device *dev,
-                                              struct packet_type *pt));
+                                              struct packet_type *pt,
+                                              struct net_device *orig_dev));
+static inline void llc_sap_hold(struct llc_sap *sap)
+{
+       atomic_inc(&sap->refcnt);
+}
+
 extern void llc_sap_close(struct llc_sap *sap);
 
+static inline void llc_sap_put(struct llc_sap *sap)
+{
+       if (atomic_dec_and_test(&sap->refcnt))
+               llc_sap_close(sap);
+}
+
 extern struct llc_sap *llc_sap_find(unsigned char sap_value);
 
 extern int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
                                     unsigned char *dmac, unsigned char dsap);
 
+extern void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb);
+extern void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb);
+
 extern int llc_station_init(void);
 extern void llc_station_exit(void);
 
@@ -96,4 +115,17 @@ extern void llc_proc_exit(void);
 #define llc_proc_init()        (0)
 #define llc_proc_exit()        do { } while(0)
 #endif /* CONFIG_PROC_FS */
+#ifdef CONFIG_SYSCTL
+extern int llc_sysctl_init(void);
+extern void llc_sysctl_exit(void);
+
+extern int sysctl_llc2_ack_timeout;
+extern int sysctl_llc2_busy_timeout;
+extern int sysctl_llc2_p_timeout;
+extern int sysctl_llc2_rej_timeout;
+extern int sysctl_llc_station_ack_timeout;
+#else
+#define llc_sysctl_init() (0)
+#define llc_sysctl_exit() do { } while(0)
+#endif /* CONFIG_SYSCTL */
 #endif /* LLC_H */