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