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/*
* Copyright 2006 IBM Corporation
* IUCV protocol stack for Linux on zSeries
* Version 1.0
* Author(s): Jennifer Hunt <jenhunt@us.ibm.com>
*
*/
#ifndef __AFIUCV_H
#define __AFIUCV_H
#include <asm/types.h>
#include <asm/byteorder.h>
#include <linux/list.h>
#include <linux/poll.h>
#include <linux/socket.h>
#ifndef AF_IUCV
#define AF_IUCV 32
#define PF_IUCV AF_IUCV
#endif
/* Connection and socket states */
enum {
IUCV_CONNECTED = 1,
IUCV_OPEN,
IUCV_BOUND,
IUCV_LISTEN,
IUCV_SEVERED,
IUCV_DISCONN,
IUCV_CLOSING,
IUCV_CLOSED
};
#define IUCV_QUEUELEN_DEFAULT 65535
#define IUCV_CONN_TIMEOUT (HZ * 40)
#define IUCV_DISCONN_TIMEOUT (HZ * 2)
#define IUCV_CONN_IDLE_TIMEOUT (HZ * 60)
#define IUCV_BUFSIZE_DEFAULT 32768
/* IUCV socket address */
struct sockaddr_iucv {
sa_family_t siucv_family;
unsigned short siucv_port; /* Reserved */
unsigned int siucv_addr; /* Reserved */
char siucv_nodeid[8]; /* Reserved */
char siucv_user_id[8]; /* Guest User Id */
char siucv_name[8]; /* Application Name */
};
/* Common socket structures and functions */
struct sock_msg_q {
struct iucv_path *path;
struct iucv_message msg;
struct list_head list;
spinlock_t lock;
};
#define iucv_sk(__sk) ((struct iucv_sock *) __sk)
struct iucv_sock {
struct sock sk;
char src_user_id[8];
char src_name[8];
char dst_user_id[8];
char dst_name[8];
struct list_head accept_q;
spinlock_t accept_q_lock;
struct sock *parent;
struct iucv_path *path;
struct sk_buff_head send_skb_q;
struct sk_buff_head backlog_skb_q;
struct sock_msg_q message_q;
unsigned int send_tag;
u8 flags;
u16 msglimit;
};
/* iucv socket options (SOL_IUCV) */
#define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */
#define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */
/* iucv related control messages (scm) */
#define SCM_IUCV_TRGCLS 0x0001 /* target class control message */
struct iucv_sock_list {
struct hlist_head head;
rwlock_t lock;
atomic_t autobind_name;
};
unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
poll_table *wait);
void iucv_sock_link(struct iucv_sock_list *l, struct sock *s);
void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s);
int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo);
void iucv_accept_enqueue(struct sock *parent, struct sock *sk);
void iucv_accept_unlink(struct sock *sk);
struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock);
#endif /* __IUCV_H */
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