| Jennifer Hunt | eac3731 | 2007-02-08 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 */ |
| 24 | enum { |
| 25 | IUCV_CONNECTED = 1, |
| 26 | IUCV_OPEN, |
| 27 | IUCV_BOUND, |
| 28 | IUCV_LISTEN, |
| 29 | IUCV_SEVERED, |
| 30 | IUCV_DISCONN, |
| 31 | IUCV_CLOSED |
| 32 | }; |
| 33 | |
| 34 | #define IUCV_QUEUELEN_DEFAULT 65535 |
| 35 | #define IUCV_CONN_TIMEOUT (HZ * 40) |
| 36 | #define IUCV_DISCONN_TIMEOUT (HZ * 2) |
| 37 | #define IUCV_CONN_IDLE_TIMEOUT (HZ * 60) |
| 38 | #define IUCV_BUFSIZE_DEFAULT 32768 |
| 39 | |
| 40 | /* IUCV socket address */ |
| 41 | struct sockaddr_iucv { |
| 42 | sa_family_t siucv_family; |
| 43 | unsigned short siucv_port; /* Reserved */ |
| 44 | unsigned int siucv_addr; /* Reserved */ |
| 45 | char siucv_nodeid[8]; /* Reserved */ |
| 46 | char siucv_user_id[8]; /* Guest User Id */ |
| 47 | char siucv_name[8]; /* Application Name */ |
| 48 | }; |
| 49 | |
| 50 | |
| 51 | /* Common socket structures and functions */ |
| 52 | |
| 53 | #define iucv_sk(__sk) ((struct iucv_sock *) __sk) |
| 54 | |
| 55 | struct iucv_sock { |
| 56 | struct sock sk; |
| 57 | char src_user_id[8]; |
| 58 | char src_name[8]; |
| 59 | char dst_user_id[8]; |
| 60 | char dst_name[8]; |
| 61 | struct list_head accept_q; |
| 62 | struct sock *parent; |
| 63 | struct iucv_path *path; |
| 64 | struct sk_buff_head send_skb_q; |
| 65 | unsigned int send_tag; |
| 66 | }; |
| 67 | |
| 68 | struct iucv_sock_list { |
| 69 | struct hlist_head head; |
| 70 | rwlock_t lock; |
| 71 | atomic_t autobind_name; |
| 72 | }; |
| 73 | |
| 74 | static void iucv_sock_destruct(struct sock *sk); |
| 75 | static void iucv_sock_cleanup_listen(struct sock *parent); |
| 76 | static void iucv_sock_kill(struct sock *sk); |
| 77 | static void iucv_sock_close(struct sock *sk); |
| 78 | static int iucv_sock_create(struct socket *sock, int proto); |
| 79 | static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr, |
| 80 | int addr_len); |
| 81 | static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr, |
| 82 | int alen, int flags); |
| 83 | static int iucv_sock_listen(struct socket *sock, int backlog); |
| 84 | static int iucv_sock_accept(struct socket *sock, struct socket *newsock, |
| 85 | int flags); |
| 86 | static int iucv_sock_getname(struct socket *sock, struct sockaddr *addr, |
| 87 | int *len, int peer); |
| 88 | static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
| 89 | struct msghdr *msg, size_t len); |
| 90 | static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock, |
| 91 | struct msghdr *msg, size_t len, int flags); |
| 92 | unsigned int iucv_sock_poll(struct file *file, struct socket *sock, |
| 93 | poll_table *wait); |
| 94 | static int iucv_sock_release(struct socket *sock); |
| 95 | static int iucv_sock_shutdown(struct socket *sock, int how); |
| 96 | |
| 97 | void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); |
| 98 | void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); |
| 99 | int iucv_sock_wait_state(struct sock *sk, int state, int state2, |
| 100 | unsigned long timeo); |
| 101 | int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo); |
| 102 | void iucv_accept_enqueue(struct sock *parent, struct sock *sk); |
| 103 | void iucv_accept_unlink(struct sock *sk); |
| 104 | struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock); |
| 105 | |
| 106 | #endif /* __IUCV_H */ |