1eac3731bSJennifer Hunt /* 2eac3731bSJennifer Hunt * Copyright 2006 IBM Corporation 3eac3731bSJennifer Hunt * IUCV protocol stack for Linux on zSeries 4eac3731bSJennifer Hunt * Version 1.0 5eac3731bSJennifer Hunt * Author(s): Jennifer Hunt <jenhunt@us.ibm.com> 6eac3731bSJennifer Hunt * 7eac3731bSJennifer Hunt */ 8eac3731bSJennifer Hunt 9eac3731bSJennifer Hunt #ifndef __AFIUCV_H 10eac3731bSJennifer Hunt #define __AFIUCV_H 11eac3731bSJennifer Hunt 12eac3731bSJennifer Hunt #include <asm/types.h> 13eac3731bSJennifer Hunt #include <asm/byteorder.h> 14eac3731bSJennifer Hunt #include <linux/list.h> 15eac3731bSJennifer Hunt #include <linux/poll.h> 16eac3731bSJennifer Hunt #include <linux/socket.h> 17eac3731bSJennifer Hunt 18eac3731bSJennifer Hunt #ifndef AF_IUCV 19eac3731bSJennifer Hunt #define AF_IUCV 32 20eac3731bSJennifer Hunt #define PF_IUCV AF_IUCV 21eac3731bSJennifer Hunt #endif 22eac3731bSJennifer Hunt 23eac3731bSJennifer Hunt /* Connection and socket states */ 24eac3731bSJennifer Hunt enum { 25eac3731bSJennifer Hunt IUCV_CONNECTED = 1, 26eac3731bSJennifer Hunt IUCV_OPEN, 27eac3731bSJennifer Hunt IUCV_BOUND, 28eac3731bSJennifer Hunt IUCV_LISTEN, 29eac3731bSJennifer Hunt IUCV_SEVERED, 30eac3731bSJennifer Hunt IUCV_DISCONN, 31561e0360SJennifer Hunt IUCV_CLOSING, 32eac3731bSJennifer Hunt IUCV_CLOSED 33eac3731bSJennifer Hunt }; 34eac3731bSJennifer Hunt 35eac3731bSJennifer Hunt #define IUCV_QUEUELEN_DEFAULT 65535 36eac3731bSJennifer Hunt #define IUCV_CONN_TIMEOUT (HZ * 40) 37eac3731bSJennifer Hunt #define IUCV_DISCONN_TIMEOUT (HZ * 2) 38eac3731bSJennifer Hunt #define IUCV_CONN_IDLE_TIMEOUT (HZ * 60) 39eac3731bSJennifer Hunt #define IUCV_BUFSIZE_DEFAULT 32768 40eac3731bSJennifer Hunt 41eac3731bSJennifer Hunt /* IUCV socket address */ 42eac3731bSJennifer Hunt struct sockaddr_iucv { 43eac3731bSJennifer Hunt sa_family_t siucv_family; 44eac3731bSJennifer Hunt unsigned short siucv_port; /* Reserved */ 45eac3731bSJennifer Hunt unsigned int siucv_addr; /* Reserved */ 46eac3731bSJennifer Hunt char siucv_nodeid[8]; /* Reserved */ 47eac3731bSJennifer Hunt char siucv_user_id[8]; /* Guest User Id */ 48eac3731bSJennifer Hunt char siucv_name[8]; /* Application Name */ 49eac3731bSJennifer Hunt }; 50eac3731bSJennifer Hunt 51eac3731bSJennifer Hunt 52eac3731bSJennifer Hunt /* Common socket structures and functions */ 53eac3731bSJennifer Hunt 54eac3731bSJennifer Hunt #define iucv_sk(__sk) ((struct iucv_sock *) __sk) 55eac3731bSJennifer Hunt 56eac3731bSJennifer Hunt struct iucv_sock { 57eac3731bSJennifer Hunt struct sock sk; 58eac3731bSJennifer Hunt char src_user_id[8]; 59eac3731bSJennifer Hunt char src_name[8]; 60eac3731bSJennifer Hunt char dst_user_id[8]; 61eac3731bSJennifer Hunt char dst_name[8]; 62eac3731bSJennifer Hunt struct list_head accept_q; 63*febca281SUrsula Braun spinlock_t accept_q_lock; 64eac3731bSJennifer Hunt struct sock *parent; 65eac3731bSJennifer Hunt struct iucv_path *path; 66eac3731bSJennifer Hunt struct sk_buff_head send_skb_q; 67561e0360SJennifer Hunt struct sk_buff_head backlog_skb_q; 68eac3731bSJennifer Hunt unsigned int send_tag; 69eac3731bSJennifer Hunt }; 70eac3731bSJennifer Hunt 71eac3731bSJennifer Hunt struct iucv_sock_list { 72eac3731bSJennifer Hunt struct hlist_head head; 73eac3731bSJennifer Hunt rwlock_t lock; 74eac3731bSJennifer Hunt atomic_t autobind_name; 75eac3731bSJennifer Hunt }; 76eac3731bSJennifer Hunt 77eac3731bSJennifer Hunt static void iucv_sock_destruct(struct sock *sk); 78eac3731bSJennifer Hunt static void iucv_sock_cleanup_listen(struct sock *parent); 79eac3731bSJennifer Hunt static void iucv_sock_kill(struct sock *sk); 80eac3731bSJennifer Hunt static void iucv_sock_close(struct sock *sk); 81eac3731bSJennifer Hunt static int iucv_sock_create(struct socket *sock, int proto); 82eac3731bSJennifer Hunt static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr, 83eac3731bSJennifer Hunt int addr_len); 84eac3731bSJennifer Hunt static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr, 85eac3731bSJennifer Hunt int alen, int flags); 86eac3731bSJennifer Hunt static int iucv_sock_listen(struct socket *sock, int backlog); 87eac3731bSJennifer Hunt static int iucv_sock_accept(struct socket *sock, struct socket *newsock, 88eac3731bSJennifer Hunt int flags); 89eac3731bSJennifer Hunt static int iucv_sock_getname(struct socket *sock, struct sockaddr *addr, 90eac3731bSJennifer Hunt int *len, int peer); 91eac3731bSJennifer Hunt static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock, 92eac3731bSJennifer Hunt struct msghdr *msg, size_t len); 93eac3731bSJennifer Hunt static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock, 94eac3731bSJennifer Hunt struct msghdr *msg, size_t len, int flags); 95eac3731bSJennifer Hunt unsigned int iucv_sock_poll(struct file *file, struct socket *sock, 96eac3731bSJennifer Hunt poll_table *wait); 97eac3731bSJennifer Hunt static int iucv_sock_release(struct socket *sock); 98eac3731bSJennifer Hunt static int iucv_sock_shutdown(struct socket *sock, int how); 99eac3731bSJennifer Hunt 100eac3731bSJennifer Hunt void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); 101eac3731bSJennifer Hunt void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); 102eac3731bSJennifer Hunt int iucv_sock_wait_state(struct sock *sk, int state, int state2, 103eac3731bSJennifer Hunt unsigned long timeo); 104eac3731bSJennifer Hunt int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo); 105eac3731bSJennifer Hunt void iucv_accept_enqueue(struct sock *parent, struct sock *sk); 106eac3731bSJennifer Hunt void iucv_accept_unlink(struct sock *sk); 107eac3731bSJennifer Hunt struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock); 108eac3731bSJennifer Hunt 109eac3731bSJennifer Hunt #endif /* __IUCV_H */ 110