include/net/inet_common.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _INET_COMMON_H
0003 #define _INET_COMMON_H
0004
0005 #include <linux/indirect_call_wrapper.h>
0006 #include <linux/net.h>
0007 #include <linux/netdev_features.h>
0008 #include <linux/types.h>
0009 #include <net/sock.h>
0010
0011 extern const struct proto_ops inet_stream_ops;
0012 extern const struct proto_ops inet_dgram_ops;
0013
0014 /*
0015  *  INET4 prototypes used by INET6
0016  */
0017
0018 struct msghdr;
0019 struct net;
0020 struct page;
0021 struct sock;
0022 struct sockaddr;
0023 struct socket;
0024
0025 int inet_release(struct socket *sock);
0026 int inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
0027             int addr_len, int flags);
0028 int __inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
0029               int addr_len, int flags, int is_sendmsg);
0030 int inet_dgram_connect(struct socket *sock, struct sockaddr *uaddr,
0031                int addr_len, int flags);
0032 int inet_accept(struct socket *sock, struct socket *newsock, int flags,
0033         bool kern);
0034 int inet_send_prepare(struct sock *sk);
0035 int inet_sendmsg(struct socket *sock, struct msghdr *msg, size_t size);
0036 ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
0037               size_t size, int flags);
0038 int inet_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
0039          int flags);
0040 int inet_shutdown(struct socket *sock, int how);
0041 int inet_listen(struct socket *sock, int backlog);
0042 void inet_sock_destruct(struct sock *sk);
0043 int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
0044 /* Don't allocate port at this moment, defer to connect. */
0045 #define BIND_FORCE_ADDRESS_NO_PORT  (1 << 0)
0046 /* Grab and release socket lock. */
0047 #define BIND_WITH_LOCK          (1 << 1)
0048 /* Called from BPF program. */
0049 #define BIND_FROM_BPF           (1 << 2)
0050 /* Skip CAP_NET_BIND_SERVICE check. */
0051 #define BIND_NO_CAP_NET_BIND_SERVICE    (1 << 3)
0052 int __inet_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
0053         u32 flags);
0054 int inet_getname(struct socket *sock, struct sockaddr *uaddr,
0055          int peer);
0056 int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
0057 int inet_ctl_sock_create(struct sock **sk, unsigned short family,
0058              unsigned short type, unsigned char protocol,
0059              struct net *net);
0060 int inet_recv_error(struct sock *sk, struct msghdr *msg, int len,
0061             int *addr_len);
0062
0063 struct sk_buff *inet_gro_receive(struct list_head *head, struct sk_buff *skb);
0064 int inet_gro_complete(struct sk_buff *skb, int nhoff);
0065 struct sk_buff *inet_gso_segment(struct sk_buff *skb,
0066                  netdev_features_t features);
0067
0068 static inline void inet_ctl_sock_destroy(struct sock *sk)
0069 {
0070     if (sk)
0071         sock_release(sk->sk_socket);
0072 }
0073
0074 #define indirect_call_gro_receive(f2, f1, cb, head, skb)    \
0075 ({                              \
0076     unlikely(gro_recursion_inc_test(skb)) ?         \
0077         NAPI_GRO_CB(skb)->flush |= 1, NULL :        \
0078         INDIRECT_CALL_2(cb, f2, f1, head, skb);     \
0079 })
0080
0081 #endif