2 * Copyright 2006 IBM Corporation
3 * IUCV protocol stack for Linux on zSeries
5 * Author(s): Jennifer Hunt <jenhunt@us.ibm.com>
12 #include <asm/types.h>
13 #include <asm/byteorder.h>
14 #include <linux/list.h>
15 #include <linux/poll.h>
16 #include <linux/socket.h>
20 #define PF_IUCV AF_IUCV
23 /* Connection and socket states */
35 #define IUCV_QUEUELEN_DEFAULT 65535
36 #define IUCV_CONN_TIMEOUT (HZ * 40)
37 #define IUCV_DISCONN_TIMEOUT (HZ * 2)
38 #define IUCV_CONN_IDLE_TIMEOUT (HZ * 60)
39 #define IUCV_BUFSIZE_DEFAULT 32768
41 /* IUCV socket address */
42 struct sockaddr_iucv {
43 sa_family_t siucv_family;
44 unsigned short siucv_port; /* Reserved */
45 unsigned int siucv_addr; /* Reserved */
46 char siucv_nodeid[8]; /* Reserved */
47 char siucv_user_id[8]; /* Guest User Id */
48 char siucv_name[8]; /* Application Name */
52 /* Common socket structures and functions */
54 #define iucv_sk(__sk) ((struct iucv_sock *) __sk)
62 struct list_head accept_q;
64 struct iucv_path *path;
65 struct sk_buff_head send_skb_q;
66 struct sk_buff_head backlog_skb_q;
67 unsigned int send_tag;
70 struct iucv_sock_list {
71 struct hlist_head head;
73 atomic_t autobind_name;
76 static void iucv_sock_destruct(struct sock *sk);
77 static void iucv_sock_cleanup_listen(struct sock *parent);
78 static void iucv_sock_kill(struct sock *sk);
79 static void iucv_sock_close(struct sock *sk);
80 static int iucv_sock_create(struct socket *sock, int proto);
81 static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr,
83 static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr,
85 static int iucv_sock_listen(struct socket *sock, int backlog);
86 static int iucv_sock_accept(struct socket *sock, struct socket *newsock,
88 static int iucv_sock_getname(struct socket *sock, struct sockaddr *addr,
90 static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
91 struct msghdr *msg, size_t len);
92 static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
93 struct msghdr *msg, size_t len, int flags);
94 unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
96 static int iucv_sock_release(struct socket *sock);
97 static int iucv_sock_shutdown(struct socket *sock, int how);
99 void iucv_sock_link(struct iucv_sock_list *l, struct sock *s);
100 void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s);
101 int iucv_sock_wait_state(struct sock *sk, int state, int state2,
102 unsigned long timeo);
103 int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo);
104 void iucv_accept_enqueue(struct sock *parent, struct sock *sk);
105 void iucv_accept_unlink(struct sock *sk);
106 struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock);
108 #endif /* __IUCV_H */