--- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -31,6 +31,8 @@ #define UEVENT_NUM_ENVP 32 /* number of env pointers */ #define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */ +struct sk_buff; + /* path to the userspace helper executed on an event */ extern char uevent_helper[]; @@ -213,6 +215,10 @@ int add_uevent_var(struct kobj_uevent_en int kobject_action_type(const char *buf, size_t count, enum kobject_action *type); + +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, + gfp_t allocation); + #else static inline int kobject_uevent(struct kobject *kobj, enum kobject_action action) @@ -229,6 +235,16 @@ int add_uevent_var(struct kobj_uevent_en static inline int kobject_action_type(const char *buf, size_t count, enum kobject_action *type) { return -EINVAL; } + +void kfree_skb(struct sk_buff *); + +static inline int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, + gfp_t allocation) +{ + kfree_skb(skb); + return 0; +} + #endif #endif /* _KOBJECT_H_ */ --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -381,6 +381,43 @@ int add_uevent_var(struct kobj_uevent_en EXPORT_SYMBOL_GPL(add_uevent_var); #if defined(CONFIG_NET) +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, + gfp_t allocation) +{ + struct uevent_sock *ue_sk; + int err = 0; + + /* send netlink message */ + mutex_lock(&uevent_sock_mutex); + list_for_each_entry(ue_sk, &uevent_sock_list, list) { + struct sock *uevent_sock = ue_sk->sk; + struct sk_buff *skb2; + + skb2 = skb_clone(skb, allocation); + if (!skb2) + break; + + err = netlink_broadcast(uevent_sock, skb2, pid, group, + allocation); + if (err) + break; + } + mutex_unlock(&uevent_sock_mutex); + + kfree_skb(skb); + return err; +} +#else +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, + gfp_t allocation) +{ + kfree_skb(skb); + return 0; +} +#endif +EXPORT_SYMBOL_GPL(broadcast_uevent); + +#if defined(CONFIG_NET) static int uevent_net_init(struct net *net) { struct uevent_sock *ue_sk;