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 */ 53f0703c80SUrsula Braun struct sock_msg_q { 54f0703c80SUrsula Braun struct iucv_path *path; 55f0703c80SUrsula Braun struct iucv_message msg; 56f0703c80SUrsula Braun struct list_head list; 57f0703c80SUrsula Braun spinlock_t lock; 58f0703c80SUrsula Braun }; 59eac3731bSJennifer Hunt 60eac3731bSJennifer Hunt #define iucv_sk(__sk) ((struct iucv_sock *) __sk) 61eac3731bSJennifer Hunt 62eac3731bSJennifer Hunt struct iucv_sock { 63eac3731bSJennifer Hunt struct sock sk; 64eac3731bSJennifer Hunt char src_user_id[8]; 65eac3731bSJennifer Hunt char src_name[8]; 66eac3731bSJennifer Hunt char dst_user_id[8]; 67eac3731bSJennifer Hunt char dst_name[8]; 68eac3731bSJennifer Hunt struct list_head accept_q; 69febca281SUrsula Braun spinlock_t accept_q_lock; 70eac3731bSJennifer Hunt struct sock *parent; 71eac3731bSJennifer Hunt struct iucv_path *path; 72eac3731bSJennifer Hunt struct sk_buff_head send_skb_q; 73561e0360SJennifer Hunt struct sk_buff_head backlog_skb_q; 74f0703c80SUrsula Braun struct sock_msg_q message_q; 75eac3731bSJennifer Hunt unsigned int send_tag; 769d5c5d8fSHendrik Brueckner u8 flags; 77eac3731bSJennifer Hunt }; 78eac3731bSJennifer Hunt 799d5c5d8fSHendrik Brueckner /* iucv socket options (SOL_IUCV) */ 809d5c5d8fSHendrik Brueckner #define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */ 819d5c5d8fSHendrik Brueckner 82*44b1e6b5SHendrik Brueckner /* iucv related control messages (scm) */ 83*44b1e6b5SHendrik Brueckner #define SCM_IUCV_TRGCLS 0x0001 /* target class control message */ 84*44b1e6b5SHendrik Brueckner 85eac3731bSJennifer Hunt struct iucv_sock_list { 86eac3731bSJennifer Hunt struct hlist_head head; 87eac3731bSJennifer Hunt rwlock_t lock; 88eac3731bSJennifer Hunt atomic_t autobind_name; 89eac3731bSJennifer Hunt }; 90eac3731bSJennifer Hunt 91eac3731bSJennifer Hunt unsigned int iucv_sock_poll(struct file *file, struct socket *sock, 92eac3731bSJennifer Hunt poll_table *wait); 93eac3731bSJennifer Hunt void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); 94eac3731bSJennifer Hunt void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); 95eac3731bSJennifer Hunt int iucv_sock_wait_state(struct sock *sk, int state, int state2, 96eac3731bSJennifer Hunt unsigned long timeo); 97eac3731bSJennifer Hunt int iucv_sock_wait_cnt(struct sock *sk, unsigned long timeo); 98eac3731bSJennifer Hunt void iucv_accept_enqueue(struct sock *parent, struct sock *sk); 99eac3731bSJennifer Hunt void iucv_accept_unlink(struct sock *sk); 100eac3731bSJennifer Hunt struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock); 101eac3731bSJennifer Hunt 102eac3731bSJennifer Hunt #endif /* __IUCV_H */ 103