You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
2.0 KiB
77 lines
2.0 KiB
7 years ago
|
From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Felix Fietkau <nbd@nbd.name>
|
||
|
|
Date: Sun, 16 Jul 2017 16:56:10 +0200
|
||
|
|
Subject: lib: add uevent_next_seqnum()
|
||
|
|
|
||
|
|
Signed-off-by: Felix Fietkau <nbd@nbd.name>
|
||
|
|
---
|
||
|
|
include/linux/kobject.h | 5 +++++
|
||
|
|
lib/kobject_uevent.c | 37 +++++++++++++++++++++++++++++++++++++
|
||
|
|
2 files changed, 42 insertions(+)
|
||
|
|
|
||
|
|
--- a/include/linux/kobject.h
|
||
|
|
+++ b/include/linux/kobject.h
|
||
|
|
@@ -32,6 +32,8 @@
|
||
|
|
#define UEVENT_NUM_ENVP 32 /* number of env pointers */
|
||
|
|
#define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */
|
||
|
|
|
||
|
|
+struct sk_buff;
|
||
|
|
+
|
||
|
|
#ifdef CONFIG_UEVENT_HELPER
|
||
|
|
/* path to the userspace helper executed on an event */
|
||
|
|
extern char uevent_helper[];
|
||
|
|
@@ -224,4 +226,7 @@ int kobject_synth_uevent(struct kobject
|
||
|
|
__printf(2, 3)
|
||
|
|
int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...);
|
||
|
|
|
||
|
|
+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
|
||
|
|
+ gfp_t allocation);
|
||
|
|
+
|
||
|
|
#endif /* _KOBJECT_H_ */
|
||
|
|
--- a/lib/kobject_uevent.c
|
||
|
|
+++ b/lib/kobject_uevent.c
|
||
|
|
@@ -599,6 +599,43 @@ 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;
|