inet_common.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _INET_COMMON_H
 3#define _INET_COMMON_H
 4
 5#include <linux/indirect_call_wrapper.h>
 6#include <linux/net.h>
 7#include <linux/netdev_features.h>
 8#include <linux/types.h>
 9#include <net/sock.h>
10
11extern const struct proto_ops inet_stream_ops;
12extern const struct proto_ops inet_dgram_ops;
13
14/*
15 *	INET4 prototypes used by INET6
16 */
17
18struct msghdr;
19struct net;
20struct page;
21struct sock;
22struct socket;
23
24int inet_release(struct socket *sock);
25int inet_stream_connect(struct socket *sock, struct sockaddr_unsized *uaddr,
26			int addr_len, int flags);
27int __inet_stream_connect(struct socket *sock, struct sockaddr_unsized *uaddr,
28			  int addr_len, int flags, int is_sendmsg);
29int inet_dgram_connect(struct socket *sock, struct sockaddr_unsized *uaddr,
30		       int addr_len, int flags);
31int inet_accept(struct socket *sock, struct socket *newsock,
32		struct proto_accept_arg *arg);
33void __inet_accept(struct socket *sock, struct socket *newsock,
34		   struct sock *newsk);
35int inet_send_prepare(struct sock *sk);
36int inet_sendmsg(struct socket *sock, struct msghdr *msg, size_t size);
37void inet_splice_eof(struct socket *sock);
38int inet_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
39		 int flags);
40int inet_shutdown(struct socket *sock, int how);
41int inet_listen(struct socket *sock, int backlog);
42int __inet_listen_sk(struct sock *sk, int backlog);
43void inet_sock_destruct(struct sock *sk);
44int inet_bind(struct socket *sock, struct sockaddr_unsized *uaddr, int addr_len);
45int inet_bind_sk(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len);
46/* Don't allocate port at this moment, defer to connect. */
47#define BIND_FORCE_ADDRESS_NO_PORT	(1 << 0)
48/* Grab and release socket lock. */
49#define BIND_WITH_LOCK			(1 << 1)
50/* Called from BPF program. */
51#define BIND_FROM_BPF			(1 << 2)
52/* Skip CAP_NET_BIND_SERVICE check. */
53#define BIND_NO_CAP_NET_BIND_SERVICE	(1 << 3)
54int __inet_bind(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len,
55		u32 flags);
56int inet_getname(struct socket *sock, struct sockaddr *uaddr,
57		 int peer);
58int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
59int inet_ctl_sock_create(struct sock **sk, unsigned short family,
60			 unsigned short type, unsigned char protocol,
61			 struct net *net);
62int inet_recv_error(struct sock *sk, struct msghdr *msg, int len,
63		    int *addr_len);
64
65struct sk_buff *inet_gro_receive(struct list_head *head, struct sk_buff *skb);
66int inet_gro_complete(struct sk_buff *skb, int nhoff);
67struct sk_buff *inet_gso_segment(struct sk_buff *skb,
68				 netdev_features_t features);
69
70static inline void inet_ctl_sock_destroy(struct sock *sk)
71{
72	if (sk)
73		sock_release(sk->sk_socket);
74}
75
76#define indirect_call_gro_receive(f2, f1, cb, head, skb)	\
77({								\
78	unlikely(gro_recursion_inc_test(skb)) ?			\
79		NAPI_GRO_CB(skb)->flush |= 1, NULL :		\
80		INDIRECT_CALL_2(cb, f2, f1, head, skb);		\
81})
82
83#endif