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_CLOSING, 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 */ 42 struct 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 struct sock_msg_q { 54 struct iucv_path *path; 55 struct iucv_message msg; 56 struct list_head list; 57 spinlock_t lock; 58 }; 59 60 #define iucv_sk(__sk) ((struct iucv_sock *) __sk) 61 62 struct iucv_sock { 63 struct sock sk; 64 char src_user_id[8]; 65 char src_name[8]; 66 char dst_user_id[8]; 67 char dst_name[8]; 68 struct list_head accept_q; 69 spinlock_t accept_q_lock; 70 struct sock *parent; 71 struct iucv_path *path; 72 struct sk_buff_head send_skb_q; 73 struct sk_buff_head backlog_skb_q; 74 struct sock_msg_q message_q; 75 unsigned int send_tag; 76 }; 77 78 struct iucv_sock_list { 79 struct hlist_head head; 80 rwlock_t lock; 81 atomic_t autobind_name; 82 }; 83 84 unsigned int iucv_sock_poll(struct file *file, struct socket *sock, 85 poll_table *wait); 86 void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); 87 void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); 88 int iucv_sock_wait_state(struct sock *sk, int state, int state2, 89 unsigned long timeo); 90 int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo); 91 void iucv_accept_enqueue(struct sock *parent, struct sock *sk); 92 void iucv_accept_unlink(struct sock *sk); 93 struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock); 94 95 #endif /* __IUCV_H */ 96