From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/include/linux/sock_diag.h | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/kernel/include/linux/sock_diag.h b/kernel/include/linux/sock_diag.h
index 15fe980..0b9ecd8 100644
--- a/kernel/include/linux/sock_diag.h
+++ b/kernel/include/linux/sock_diag.h
@@ -25,7 +25,19 @@
void sock_diag_register_inet_compat(int (*fn)(struct sk_buff *skb, struct nlmsghdr *nlh));
void sock_diag_unregister_inet_compat(int (*fn)(struct sk_buff *skb, struct nlmsghdr *nlh));
-u64 sock_gen_cookie(struct sock *sk);
+u64 __sock_gen_cookie(struct sock *sk);
+
+static inline u64 sock_gen_cookie(struct sock *sk)
+{
+ u64 cookie;
+
+ preempt_disable();
+ cookie = __sock_gen_cookie(sk);
+ preempt_enable();
+
+ return cookie;
+}
+
int sock_diag_check_cookie(struct sock *sk, const __u32 *cookie);
void sock_diag_save_cookie(struct sock *sk, __u32 *cookie);
--
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