1*eac3731bSJennifer Hunt /* 2*eac3731bSJennifer Hunt * Copyright 2006 IBM Corporation 3*eac3731bSJennifer Hunt * IUCV protocol stack for Linux on zSeries 4*eac3731bSJennifer Hunt * Version 1.0 5*eac3731bSJennifer Hunt * Author(s): Jennifer Hunt <jenhunt@us.ibm.com> 6*eac3731bSJennifer Hunt * 7*eac3731bSJennifer Hunt */ 8*eac3731bSJennifer Hunt 9*eac3731bSJennifer Hunt #ifndef __AFIUCV_H 10*eac3731bSJennifer Hunt #define __AFIUCV_H 11*eac3731bSJennifer Hunt 12*eac3731bSJennifer Hunt #include <asm/types.h> 13*eac3731bSJennifer Hunt #include <asm/byteorder.h> 14*eac3731bSJennifer Hunt #include <linux/list.h> 15*eac3731bSJennifer Hunt #include <linux/poll.h> 16*eac3731bSJennifer Hunt #include <linux/socket.h> 17*eac3731bSJennifer Hunt 18*eac3731bSJennifer Hunt #ifndef AF_IUCV 19*eac3731bSJennifer Hunt #define AF_IUCV 32 20*eac3731bSJennifer Hunt #define PF_IUCV AF_IUCV 21*eac3731bSJennifer Hunt #endif 22*eac3731bSJennifer Hunt 23*eac3731bSJennifer Hunt /* Connection and socket states */ 24*eac3731bSJennifer Hunt enum { 25*eac3731bSJennifer Hunt IUCV_CONNECTED = 1, 26*eac3731bSJennifer Hunt IUCV_OPEN, 27*eac3731bSJennifer Hunt IUCV_BOUND, 28*eac3731bSJennifer Hunt IUCV_LISTEN, 29*eac3731bSJennifer Hunt IUCV_SEVERED, 30*eac3731bSJennifer Hunt IUCV_DISCONN, 31*eac3731bSJennifer Hunt IUCV_CLOSED 32*eac3731bSJennifer Hunt }; 33*eac3731bSJennifer Hunt 34*eac3731bSJennifer Hunt #define IUCV_QUEUELEN_DEFAULT 65535 35*eac3731bSJennifer Hunt #define IUCV_CONN_TIMEOUT (HZ * 40) 36*eac3731bSJennifer Hunt #define IUCV_DISCONN_TIMEOUT (HZ * 2) 37*eac3731bSJennifer Hunt #define IUCV_CONN_IDLE_TIMEOUT (HZ * 60) 38*eac3731bSJennifer Hunt #define IUCV_BUFSIZE_DEFAULT 32768 39*eac3731bSJennifer Hunt 40*eac3731bSJennifer Hunt /* IUCV socket address */ 41*eac3731bSJennifer Hunt struct sockaddr_iucv { 42*eac3731bSJennifer Hunt sa_family_t siucv_family; 43*eac3731bSJennifer Hunt unsigned short siucv_port; /* Reserved */ 44*eac3731bSJennifer Hunt unsigned int siucv_addr; /* Reserved */ 45*eac3731bSJennifer Hunt char siucv_nodeid[8]; /* Reserved */ 46*eac3731bSJennifer Hunt char siucv_user_id[8]; /* Guest User Id */ 47*eac3731bSJennifer Hunt char siucv_name[8]; /* Application Name */ 48*eac3731bSJennifer Hunt }; 49*eac3731bSJennifer Hunt 50*eac3731bSJennifer Hunt 51*eac3731bSJennifer Hunt /* Common socket structures and functions */ 52*eac3731bSJennifer Hunt 53*eac3731bSJennifer Hunt #define iucv_sk(__sk) ((struct iucv_sock *) __sk) 54*eac3731bSJennifer Hunt 55*eac3731bSJennifer Hunt struct iucv_sock { 56*eac3731bSJennifer Hunt struct sock sk; 57*eac3731bSJennifer Hunt char src_user_id[8]; 58*eac3731bSJennifer Hunt char src_name[8]; 59*eac3731bSJennifer Hunt char dst_user_id[8]; 60*eac3731bSJennifer Hunt char dst_name[8]; 61*eac3731bSJennifer Hunt struct list_head accept_q; 62*eac3731bSJennifer Hunt struct sock *parent; 63*eac3731bSJennifer Hunt struct iucv_path *path; 64*eac3731bSJennifer Hunt struct sk_buff_head send_skb_q; 65*eac3731bSJennifer Hunt unsigned int send_tag; 66*eac3731bSJennifer Hunt }; 67*eac3731bSJennifer Hunt 68*eac3731bSJennifer Hunt struct iucv_sock_list { 69*eac3731bSJennifer Hunt struct hlist_head head; 70*eac3731bSJennifer Hunt rwlock_t lock; 71*eac3731bSJennifer Hunt atomic_t autobind_name; 72*eac3731bSJennifer Hunt }; 73*eac3731bSJennifer Hunt 74*eac3731bSJennifer Hunt static void iucv_sock_destruct(struct sock *sk); 75*eac3731bSJennifer Hunt static void iucv_sock_cleanup_listen(struct sock *parent); 76*eac3731bSJennifer Hunt static void iucv_sock_kill(struct sock *sk); 77*eac3731bSJennifer Hunt static void iucv_sock_close(struct sock *sk); 78*eac3731bSJennifer Hunt static int iucv_sock_create(struct socket *sock, int proto); 79*eac3731bSJennifer Hunt static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr, 80*eac3731bSJennifer Hunt int addr_len); 81*eac3731bSJennifer Hunt static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr, 82*eac3731bSJennifer Hunt int alen, int flags); 83*eac3731bSJennifer Hunt static int iucv_sock_listen(struct socket *sock, int backlog); 84*eac3731bSJennifer Hunt static int iucv_sock_accept(struct socket *sock, struct socket *newsock, 85*eac3731bSJennifer Hunt int flags); 86*eac3731bSJennifer Hunt static int iucv_sock_getname(struct socket *sock, struct sockaddr *addr, 87*eac3731bSJennifer Hunt int *len, int peer); 88*eac3731bSJennifer Hunt static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock, 89*eac3731bSJennifer Hunt struct msghdr *msg, size_t len); 90*eac3731bSJennifer Hunt static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock, 91*eac3731bSJennifer Hunt struct msghdr *msg, size_t len, int flags); 92*eac3731bSJennifer Hunt unsigned int iucv_sock_poll(struct file *file, struct socket *sock, 93*eac3731bSJennifer Hunt poll_table *wait); 94*eac3731bSJennifer Hunt static int iucv_sock_release(struct socket *sock); 95*eac3731bSJennifer Hunt static int iucv_sock_shutdown(struct socket *sock, int how); 96*eac3731bSJennifer Hunt 97*eac3731bSJennifer Hunt void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); 98*eac3731bSJennifer Hunt void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); 99*eac3731bSJennifer Hunt int iucv_sock_wait_state(struct sock *sk, int state, int state2, 100*eac3731bSJennifer Hunt unsigned long timeo); 101*eac3731bSJennifer Hunt int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo); 102*eac3731bSJennifer Hunt void iucv_accept_enqueue(struct sock *parent, struct sock *sk); 103*eac3731bSJennifer Hunt void iucv_accept_unlink(struct sock *sk); 104*eac3731bSJennifer Hunt struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock); 105*eac3731bSJennifer Hunt 106*eac3731bSJennifer Hunt #endif /* __IUCV_H */ 107