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gerrit-public.fairphone.software / kernel / msm-4.9 / 9bc89cd82d6f88fb0ca39b30445c329a430fd66b / . / include / net / iucv / af_iucv.h
blob: f9bd11be1891539e807120d8e0bb8e0e3cc634d2 [file] [log] [blame]
Jennifer Hunteac37312007-02-08 13:51:54 -0800[diff] [blame]1/*
2 * Copyright 2006 IBM Corporation
3 * IUCV protocol stack for Linux on zSeries
4 * Version 1.0
5 * Author(s): Jennifer Hunt <jenhunt@us.ibm.com>
6 *
7 */
8
9#ifndef __AFIUCV_H
10#define __AFIUCV_H
11
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>
17
18#ifndef AF_IUCV
19#define AF_IUCV 32
20#define PF_IUCV AF_IUCV
21#endif
22
23/* Connection and socket states */
24enum {
25 IUCV_CONNECTED = 1,
26 IUCV_OPEN,
27 IUCV_BOUND,
28 IUCV_LISTEN,
29 IUCV_SEVERED,
30 IUCV_DISCONN,
Jennifer Hunt561e0362007-05-04 12:22:07 -0700[diff] [blame]31 IUCV_CLOSING,
Jennifer Hunteac37312007-02-08 13:51:54 -0800[diff] [blame]32 IUCV_CLOSED
33};
34
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
40
41/* IUCV socket address */
42struct 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 */
49};
50
51
52/* Common socket structures and functions */
53
54#define iucv_sk(__sk) ((struct iucv_sock *) __sk)
55
56struct iucv_sock {
57 struct sock sk;
58 char src_user_id[8];
59 char src_name[8];
60 char dst_user_id[8];
61 char dst_name[8];
62 struct list_head accept_q;
63 struct sock *parent;
64 struct iucv_path *path;
65 struct sk_buff_head send_skb_q;
Jennifer Hunt561e0362007-05-04 12:22:07 -0700[diff] [blame]66 struct sk_buff_head backlog_skb_q;
Jennifer Hunteac37312007-02-08 13:51:54 -0800[diff] [blame]67 unsigned int send_tag;
68};
69
70struct iucv_sock_list {
71 struct hlist_head head;
72 rwlock_t lock;
73 atomic_t autobind_name;
74};
75
76static void iucv_sock_destruct(struct sock *sk);
77static void iucv_sock_cleanup_listen(struct sock *parent);
78static void iucv_sock_kill(struct sock *sk);
79static void iucv_sock_close(struct sock *sk);
80static int iucv_sock_create(struct socket *sock, int proto);
81static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr,
82 int addr_len);
83static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr,
84 int alen, int flags);
85static int iucv_sock_listen(struct socket *sock, int backlog);
86static int iucv_sock_accept(struct socket *sock, struct socket *newsock,
87 int flags);
88static int iucv_sock_getname(struct socket *sock, struct sockaddr *addr,
89 int *len, int peer);
90static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
91 struct msghdr *msg, size_t len);
92static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
93 struct msghdr *msg, size_t len, int flags);
94unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
95 poll_table *wait);
96static int iucv_sock_release(struct socket *sock);
97static int iucv_sock_shutdown(struct socket *sock, int how);
98
99void iucv_sock_link(struct iucv_sock_list *l, struct sock *s);
100void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s);
101int iucv_sock_wait_state(struct sock *sk, int state, int state2,
102 unsigned long timeo);
103int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo);
104void iucv_accept_enqueue(struct sock *parent, struct sock *sk);
105void iucv_accept_unlink(struct sock *sk);
106struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock);
107
108#endif /* __IUCV_H */