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-rw-r--r--include/net/dn_dev.h186
1 files changed, 95 insertions, 91 deletions
diff --git a/include/net/dn_dev.h b/include/net/dn_dev.h
index 5a86e78081b..197886cd7bd 100644
--- a/include/net/dn_dev.h
+++ b/include/net/dn_dev.h
@@ -5,13 +5,14 @@
struct dn_dev;
struct dn_ifaddr {
- struct dn_ifaddr *ifa_next;
+ struct dn_ifaddr __rcu *ifa_next;
struct dn_dev *ifa_dev;
- dn_address ifa_local;
- dn_address ifa_address;
- unsigned char ifa_flags;
- unsigned char ifa_scope;
- char ifa_label[IFNAMSIZ];
+ __le16 ifa_local;
+ __le16 ifa_address;
+ __u32 ifa_flags;
+ __u8 ifa_scope;
+ char ifa_label[IFNAMSIZ];
+ struct rcu_head rcu;
};
#define DN_DEV_S_RU 0 /* Run - working normally */
@@ -75,7 +76,6 @@ struct dn_dev_parms {
unsigned long t3; /* Default value of t3 */
int priority; /* Priority to be a router */
char *name; /* Name for sysctl */
- int ctl_name; /* Index for sysctl */
int (*up)(struct net_device *);
void (*down)(struct net_device *);
void (*timer3)(struct net_device *, struct dn_ifaddr *ifa);
@@ -84,111 +84,115 @@ struct dn_dev_parms {
struct dn_dev {
- struct dn_ifaddr *ifa_list;
+ struct dn_ifaddr __rcu *ifa_list;
struct net_device *dev;
struct dn_dev_parms parms;
char use_long;
struct timer_list timer;
unsigned long t3;
struct neigh_parms *neigh_parms;
- unsigned char addr[ETH_ALEN];
+ __u8 addr[ETH_ALEN];
struct neighbour *router; /* Default router on circuit */
struct neighbour *peer; /* Peer on pointopoint links */
unsigned long uptime; /* Time device went up in jiffies */
};
-struct dn_short_packet
-{
- unsigned char msgflg;
- unsigned short dstnode;
- unsigned short srcnode;
- unsigned char forward;
-} __attribute__((packed));
-
-struct dn_long_packet
-{
- unsigned char msgflg;
- unsigned char d_area;
- unsigned char d_subarea;
- unsigned char d_id[6];
- unsigned char s_area;
- unsigned char s_subarea;
- unsigned char s_id[6];
- unsigned char nl2;
- unsigned char visit_ct;
- unsigned char s_class;
- unsigned char pt;
-} __attribute__((packed));
+struct dn_short_packet {
+ __u8 msgflg;
+ __le16 dstnode;
+ __le16 srcnode;
+ __u8 forward;
+} __packed;
+
+struct dn_long_packet {
+ __u8 msgflg;
+ __u8 d_area;
+ __u8 d_subarea;
+ __u8 d_id[6];
+ __u8 s_area;
+ __u8 s_subarea;
+ __u8 s_id[6];
+ __u8 nl2;
+ __u8 visit_ct;
+ __u8 s_class;
+ __u8 pt;
+} __packed;
/*------------------------- DRP - Routing messages ---------------------*/
-struct endnode_hello_message
-{
- unsigned char msgflg;
- unsigned char tiver[3];
- unsigned char id[6];
- unsigned char iinfo;
- unsigned short blksize;
- unsigned char area;
- unsigned char seed[8];
- unsigned char neighbor[6];
- unsigned short timer;
- unsigned char mpd;
- unsigned char datalen;
- unsigned char data[2];
-} __attribute__((packed));
-
-struct rtnode_hello_message
+struct endnode_hello_message {
+ __u8 msgflg;
+ __u8 tiver[3];
+ __u8 id[6];
+ __u8 iinfo;
+ __le16 blksize;
+ __u8 area;
+ __u8 seed[8];
+ __u8 neighbor[6];
+ __le16 timer;
+ __u8 mpd;
+ __u8 datalen;
+ __u8 data[2];
+} __packed;
+
+struct rtnode_hello_message {
+ __u8 msgflg;
+ __u8 tiver[3];
+ __u8 id[6];
+ __u8 iinfo;
+ __le16 blksize;
+ __u8 priority;
+ __u8 area;
+ __le16 timer;
+ __u8 mpd;
+} __packed;
+
+
+void dn_dev_init(void);
+void dn_dev_cleanup(void);
+
+int dn_dev_ioctl(unsigned int cmd, void __user *arg);
+
+void dn_dev_devices_off(void);
+void dn_dev_devices_on(void);
+
+void dn_dev_init_pkt(struct sk_buff *skb);
+void dn_dev_veri_pkt(struct sk_buff *skb);
+void dn_dev_hello(struct sk_buff *skb);
+
+void dn_dev_up(struct net_device *);
+void dn_dev_down(struct net_device *);
+
+int dn_dev_set_default(struct net_device *dev, int force);
+struct net_device *dn_dev_get_default(void);
+int dn_dev_bind_default(__le16 *addr);
+
+int register_dnaddr_notifier(struct notifier_block *nb);
+int unregister_dnaddr_notifier(struct notifier_block *nb);
+
+static inline int dn_dev_islocal(struct net_device *dev, __le16 addr)
{
- unsigned char msgflg;
- unsigned char tiver[3];
- unsigned char id[6];
- unsigned char iinfo;
- unsigned short blksize;
- unsigned char priority;
- unsigned char area;
- unsigned short timer;
- unsigned char mpd;
-} __attribute__((packed));
-
-
-extern void dn_dev_init(void);
-extern void dn_dev_cleanup(void);
-
-extern int dn_dev_ioctl(unsigned int cmd, void __user *arg);
-
-extern void dn_dev_devices_off(void);
-extern void dn_dev_devices_on(void);
-
-extern void dn_dev_init_pkt(struct sk_buff *skb);
-extern void dn_dev_veri_pkt(struct sk_buff *skb);
-extern void dn_dev_hello(struct sk_buff *skb);
-
-extern void dn_dev_up(struct net_device *);
-extern void dn_dev_down(struct net_device *);
-
-extern int dn_dev_set_default(struct net_device *dev, int force);
-extern struct net_device *dn_dev_get_default(void);
-extern int dn_dev_bind_default(dn_address *addr);
-
-extern int register_dnaddr_notifier(struct notifier_block *nb);
-extern int unregister_dnaddr_notifier(struct notifier_block *nb);
-
-static inline int dn_dev_islocal(struct net_device *dev, dn_address addr)
-{
- struct dn_dev *dn_db = dev->dn_ptr;
+ struct dn_dev *dn_db;
struct dn_ifaddr *ifa;
+ int res = 0;
+ rcu_read_lock();
+ dn_db = rcu_dereference(dev->dn_ptr);
if (dn_db == NULL) {
printk(KERN_DEBUG "dn_dev_islocal: Called for non DECnet device\n");
- return 0;
+ goto out;
}
- for(ifa = dn_db->ifa_list; ifa; ifa = ifa->ifa_next)
- if ((addr ^ ifa->ifa_local) == 0)
- return 1;
-
- return 0;
+ for (ifa = rcu_dereference(dn_db->ifa_list);
+ ifa != NULL;
+ ifa = rcu_dereference(ifa->ifa_next))
+ if ((addr ^ ifa->ifa_local) == 0) {
+ res = 1;
+ break;
+ }
+out:
+ rcu_read_unlock();
+ return res;
}
#endif /* _NET_DN_DEV_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 18:39:17 +0000