write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/include/net/af_unix.h
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@@ -14,7 +14,7 @@
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 void unix_gc(void);
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 void wait_for_unix_gc(void);
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 struct sock *unix_get_socket(struct file *filp);
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-struct sock *unix_peer_get(struct sock *);
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+struct sock *unix_peer_get(struct sock *sk);
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 #define UNIX_HASH_SIZE	256
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 #define UNIX_HASH_BITS	8
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@@ -27,7 +27,7 @@
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 	refcount_t	refcnt;
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 	int		len;
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 	unsigned int	hash;
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-	struct sockaddr_un name[0];
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+	struct sockaddr_un name[];
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 };
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 struct unix_skb_parms {
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@@ -41,7 +41,11 @@
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 	u32			consumed;
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 } __randomize_layout;
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-#define UNIXCB(skb) 	(*(struct unix_skb_parms *)&((skb)->cb))
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+struct scm_stat {
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+	atomic_t nr_fds;
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+};
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+
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+#define UNIXCB(skb)	(*(struct unix_skb_parms *)&((skb)->cb))
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 #define unix_state_lock(s)	spin_lock(&unix_sk(s)->lock)
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 #define unix_state_unlock(s)	spin_unlock(&unix_sk(s)->lock)
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@@ -53,7 +57,7 @@
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 struct unix_sock {
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 	/* WARNING: sk has to be the first member */
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 	struct sock		sk;
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-	struct unix_address     *addr;
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+	struct unix_address	*addr;
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 	struct path		path;
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 	struct mutex		iolock, bindlock;
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 	struct sock		*peer;
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@@ -64,7 +68,8 @@
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 #define UNIX_GC_CANDIDATE	0
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 #define UNIX_GC_MAYBE_CYCLE	1
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 	struct socket_wq	peer_wq;
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-	wait_queue_entry_t		peer_wake;
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+	wait_queue_entry_t	peer_wake;
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+	struct scm_stat		scm_stat;
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 };
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 static inline struct unix_sock *unix_sk(const struct sock *sk)