Edit File: af_iucv.h
/* * 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> #include <net/iucv/iucv.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_DISCONN, IUCV_CLOSING, IUCV_CLOSED }; #define IUCV_QUEUELEN_DEFAULT 65535 #define IUCV_HIPER_MSGLIM_DEFAULT 128 #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 AF_IUCV_FLAG_ACK 0x1 #define AF_IUCV_FLAG_SYN 0x2 #define AF_IUCV_FLAG_FIN 0x4 #define AF_IUCV_FLAG_WIN 0x8 #define AF_IUCV_FLAG_SHT 0x10 struct af_iucv_trans_hdr { u16 magic; u8 version; u8 flags; u16 window; char destNodeID[8]; char destUserID[8]; char destAppName[16]; char srcNodeID[8]; char srcUserID[8]; char srcAppName[16]; /* => 70 bytes */ struct iucv_message iucv_hdr; /* => 33 bytes */ u8 pad; /* total 104 bytes */ } __packed; enum iucv_tx_notify { /* transmission of skb is completed and was successful */ TX_NOTIFY_OK = 0, /* target is unreachable */ TX_NOTIFY_UNREACHABLE = 1, /* transfer pending queue full */ TX_NOTIFY_TPQFULL = 2, /* general error */ TX_NOTIFY_GENERALERROR = 3, /* transmission of skb is pending - may interleave * with TX_NOTIFY_DELAYED_* */ TX_NOTIFY_PENDING = 4, /* transmission of skb was done successfully (delayed) */ TX_NOTIFY_DELAYED_OK = 5, /* target unreachable (detected delayed) */ TX_NOTIFY_DELAYED_UNREACHABLE = 6, /* general error (detected delayed) */ TX_NOTIFY_DELAYED_GENERALERROR = 7, }; #define iucv_sk(__sk) ((struct iucv_sock *) __sk) #define AF_IUCV_TRANS_IUCV 0 #define AF_IUCV_TRANS_HIPER 1 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 net_device *hs_dev; 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; u16 msglimit_peer; atomic_t msg_sent; atomic_t msg_recv; atomic_t pendings; int transport; void (*sk_txnotify)(struct sk_buff *skb, enum iucv_tx_notify n); }; struct iucv_skb_cb { u32 class; /* target class of message */ u32 tag; /* tag associated with message */ u32 offset; /* offset for skb receival */ }; #define IUCV_SKB_CB(__skb) ((struct iucv_skb_cb *)&((__skb)->cb[0])) /* iucv socket options (SOL_IUCV) */ #define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */ #define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */ #define SO_MSGSIZE 0x0800 /* get maximum msgsize */ /* 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); 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 */