| 1 | --- a/include/linux/kobject.h |
| 2 | +++ b/include/linux/kobject.h |
| 3 | @@ -31,6 +31,8 @@ |
| 4 | #define UEVENT_NUM_ENVP 32 /* number of env pointers */ |
| 5 | #define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */ |
| 6 | |
| 7 | +struct sk_buff; |
| 8 | + |
| 9 | /* path to the userspace helper executed on an event */ |
| 10 | extern char uevent_helper[]; |
| 11 | |
| 12 | @@ -213,6 +215,10 @@ int add_uevent_var(struct kobj_uevent_en |
| 13 | |
| 14 | int kobject_action_type(const char *buf, size_t count, |
| 15 | enum kobject_action *type); |
| 16 | + |
| 17 | +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, |
| 18 | + gfp_t allocation); |
| 19 | + |
| 20 | #else |
| 21 | static inline int kobject_uevent(struct kobject *kobj, |
| 22 | enum kobject_action action) |
| 23 | @@ -229,6 +235,16 @@ int add_uevent_var(struct kobj_uevent_en |
| 24 | static inline int kobject_action_type(const char *buf, size_t count, |
| 25 | enum kobject_action *type) |
| 26 | { return -EINVAL; } |
| 27 | + |
| 28 | +void kfree_skb(struct sk_buff *); |
| 29 | + |
| 30 | +static inline int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, |
| 31 | + gfp_t allocation) |
| 32 | +{ |
| 33 | + kfree_skb(skb); |
| 34 | + return 0; |
| 35 | +} |
| 36 | + |
| 37 | #endif |
| 38 | |
| 39 | #endif /* _KOBJECT_H_ */ |
| 40 | --- a/lib/kobject_uevent.c |
| 41 | +++ b/lib/kobject_uevent.c |
| 42 | @@ -380,6 +380,43 @@ int add_uevent_var(struct kobj_uevent_en |
| 43 | EXPORT_SYMBOL_GPL(add_uevent_var); |
| 44 | |
| 45 | #if defined(CONFIG_NET) |
| 46 | +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, |
| 47 | + gfp_t allocation) |
| 48 | +{ |
| 49 | + struct uevent_sock *ue_sk; |
| 50 | + int err = 0; |
| 51 | + |
| 52 | + /* send netlink message */ |
| 53 | + mutex_lock(&uevent_sock_mutex); |
| 54 | + list_for_each_entry(ue_sk, &uevent_sock_list, list) { |
| 55 | + struct sock *uevent_sock = ue_sk->sk; |
| 56 | + struct sk_buff *skb2; |
| 57 | + |
| 58 | + skb2 = skb_clone(skb, allocation); |
| 59 | + if (!skb2) |
| 60 | + break; |
| 61 | + |
| 62 | + err = netlink_broadcast(uevent_sock, skb2, pid, group, |
| 63 | + allocation); |
| 64 | + if (err) |
| 65 | + break; |
| 66 | + } |
| 67 | + mutex_unlock(&uevent_sock_mutex); |
| 68 | + |
| 69 | + kfree_skb(skb); |
| 70 | + return err; |
| 71 | +} |
| 72 | +#else |
| 73 | +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, |
| 74 | + gfp_t allocation) |
| 75 | +{ |
| 76 | + kfree_skb(skb); |
| 77 | + return 0; |
| 78 | +} |
| 79 | +#endif |
| 80 | +EXPORT_SYMBOL_GPL(broadcast_uevent); |
| 81 | + |
| 82 | +#if defined(CONFIG_NET) |
| 83 | static int uevent_net_init(struct net *net) |
| 84 | { |
| 85 | struct uevent_sock *ue_sk; |
| 86 | |
