include/linux/net.h

51  * @SOCK_STREAM: stream (connection) socket
52  * @SOCK_DGRAM: datagram (conn.less) socket
53  * @SOCK_RAW: raw socket
55  * @SOCK_SEQPACKET: sequential packet socket
56  * @SOCK_DCCP: Datagram Congestion Control Protocol socket
60  * When adding some new socket type please
61  * grep ARCH_HAS_SOCKET_TYPE include/asm-* /socket.h, at least MIPS
79 /* Flags for socket, socketpair, accept4 */
108  *  struct socket - general BSD socket
109  *  @state: socket state (%SS_CONNECTED, etc)
110  *  @type: socket type (%SOCK_STREAM, etc)
111  *  @flags: socket flags (%SOCK_NOSPACE, etc)
112  *  @ops: protocol specific socket operations
114  *  @sk: internal networking protocol agnostic socket representation
117 struct socket {
164 	int		(*release)   (struct socket *sock);
165 	int		(*bind)	     (struct socket *sock,
168 	int		(*connect)   (struct socket *sock,
171 	int		(*socketpair)(struct socket *sock1,
172 				      struct socket *sock2);
173 	int		(*accept)    (struct socket *sock,
174 				      struct socket *newsock, int flags, bool kern);
175 	int		(*getname)   (struct socket *sock,
178 	__poll_t	(*poll)	     (struct file *file, struct socket *sock,
180 	int		(*ioctl)     (struct socket *sock, unsigned int cmd,
183 	int	 	(*compat_ioctl) (struct socket *sock, unsigned int cmd,
186 	int		(*gettstamp) (struct socket *sock, void __user *userstamp,
188 	int		(*listen)    (struct socket *sock, int len);
189 	int		(*shutdown)  (struct socket *sock, int flags);
190 	int		(*setsockopt)(struct socket *sock, int level,
193 	int		(*getsockopt)(struct socket *sock, int level,
195 	void		(*show_fdinfo)(struct seq_file *m, struct socket *sock);
196 	int		(*sendmsg)   (struct socket *sock, struct msghdr *m,
206 	int		(*recvmsg)   (struct socket *sock, struct msghdr *m,
208 	int		(*mmap)	     (struct file *file, struct socket *sock,
210 	ssize_t 	(*splice_read)(struct socket *sock,  loff_t *ppos,
212 	void		(*splice_eof)(struct socket *sock);
214 	int		(*peek_len)(struct socket *sock);
233 	int		(*create)(struct net *net, struct socket *sock,
253 		  struct socket **res, int kern);
254 int sock_create(int family, int type, int proto, struct socket **res);
255 int sock_create_kern(struct net *net, int family, int type, int proto, struct socket **res);
256 int sock_create_lite(int family, int type, int proto, struct socket **res);
257 struct socket *sock_alloc(void);
258 void sock_release(struct socket *sock);
259 int sock_sendmsg(struct socket *sock, struct msghdr *msg);
260 int sock_recvmsg(struct socket *sock, struct msghdr *msg, int flags);
261 struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname);
262 struct socket *sockfd_lookup(int fd, int *err);
263 struct socket *sock_from_file(struct file *file);
323 int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
327 int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
330 int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen);
331 int kernel_listen(struct socket *sock, int backlog);
332 int kernel_accept(struct socket *sock, struct socket **newsock, int flags);
333 int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
335 int kernel_getsockname(struct socket *sock, struct sockaddr *addr);
336 int kernel_getpeername(struct socket *sock, struct sockaddr *addr);
337 int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how);
339 /* Routine returns the IP overhead imposed by a (caller-protected) socket. */