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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/net/inet_common.h
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@@ -2,6 +2,8 @@
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 #ifndef _INET_COMMON_H
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 #define _INET_COMMON_H
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+#include <linux/indirect_call_wrapper.h>
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+
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 extern const struct proto_ops inet_stream_ops;
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 extern const struct proto_ops inet_dgram_ops;
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@@ -23,6 +25,7 @@
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 		       int addr_len, int flags);
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 int inet_accept(struct socket *sock, struct socket *newsock, int flags,
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 		bool kern);
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+int inet_send_prepare(struct sock *sk);
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 int inet_sendmsg(struct socket *sock, struct msghdr *msg, size_t size);
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 ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
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 		      size_t size, int flags);
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@@ -32,8 +35,14 @@
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 int inet_listen(struct socket *sock, int backlog);
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 void inet_sock_destruct(struct sock *sk);
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 int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
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+/* Don't allocate port at this moment, defer to connect. */
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+#define BIND_FORCE_ADDRESS_NO_PORT	(1 << 0)
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+/* Grab and release socket lock. */
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+#define BIND_WITH_LOCK			(1 << 1)
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+/* Called from BPF program. */
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+#define BIND_FROM_BPF			(1 << 2)
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 int __inet_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
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-		bool force_bind_address_no_port, bool with_lock);
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+		u32 flags);
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 int inet_getname(struct socket *sock, struct sockaddr *uaddr,
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 		 int peer);
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 int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
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@@ -54,4 +63,11 @@
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 		sock_release(sk->sk_socket);
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 }
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+#define indirect_call_gro_receive(f2, f1, cb, head, skb)	\
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+({								\
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+	unlikely(gro_recursion_inc_test(skb)) ?			\
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+		NAPI_GRO_CB(skb)->flush |= 1, NULL :		\
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+		INDIRECT_CALL_2(cb, f2, f1, head, skb);		\
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+})
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+
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 #endif