2 * Copyright 2006 IBM Corporation
3 * IUCV protocol stack for Linux on zSeries
5 * Author(s): Jennifer Hunt <jenhunt@us.ibm.com>
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 #include <net/iucv/iucv.h>
21 #define PF_IUCV AF_IUCV
24 /* Connection and socket states */
35 #define IUCV_QUEUELEN_DEFAULT 65535
36 #define IUCV_HIPER_MSGLIM_DEFAULT 128
37 #define IUCV_CONN_TIMEOUT (HZ * 40)
38 #define IUCV_DISCONN_TIMEOUT (HZ * 2)
39 #define IUCV_CONN_IDLE_TIMEOUT (HZ * 60)
40 #define IUCV_BUFSIZE_DEFAULT 32768
42 /* IUCV socket address */
43 struct sockaddr_iucv
{
44 sa_family_t siucv_family
;
45 unsigned short siucv_port
; /* Reserved */
46 unsigned int siucv_addr
; /* Reserved */
47 char siucv_nodeid
[8]; /* Reserved */
48 char siucv_user_id
[8]; /* Guest User Id */
49 char siucv_name
[8]; /* Application Name */
53 /* Common socket structures and functions */
55 struct iucv_path
*path
;
56 struct iucv_message msg
;
57 struct list_head list
;
61 #define AF_IUCV_FLAG_ACK 0x1
62 #define AF_IUCV_FLAG_SYN 0x2
63 #define AF_IUCV_FLAG_FIN 0x4
64 #define AF_IUCV_FLAG_WIN 0x8
66 struct af_iucv_trans_hdr
{
76 char srcAppName
[16]; /* => 70 bytes */
77 struct iucv_message iucv_hdr
; /* => 33 bytes */
78 u8 pad
; /* total 104 bytes */
82 /* transmission of skb is completed and was successful */
84 /* target is unreachable */
85 TX_NOTIFY_UNREACHABLE
= 1,
86 /* transfer pending queue full */
87 TX_NOTIFY_TPQFULL
= 2,
89 TX_NOTIFY_GENERALERROR
= 3,
90 /* transmission of skb is pending - may interleave
91 * with TX_NOTIFY_DELAYED_* */
92 TX_NOTIFY_PENDING
= 4,
93 /* transmission of skb was done successfully (delayed) */
94 TX_NOTIFY_DELAYED_OK
= 5,
95 /* target unreachable (detected delayed) */
96 TX_NOTIFY_DELAYED_UNREACHABLE
= 6,
97 /* general error (detected delayed) */
98 TX_NOTIFY_DELAYED_GENERALERROR
= 7,
101 #define iucv_sk(__sk) ((struct iucv_sock *) __sk)
103 #define AF_IUCV_TRANS_IUCV 0
104 #define AF_IUCV_TRANS_HIPER 1
112 struct list_head accept_q
;
113 spinlock_t accept_q_lock
;
115 struct iucv_path
*path
;
116 struct sk_buff_head send_skb_q
;
117 struct sk_buff_head backlog_skb_q
;
118 struct sock_msg_q message_q
;
119 unsigned int send_tag
;
127 void (*sk_txnotify
)(struct sk_buff
*skb
,
128 enum iucv_tx_notify n
);
131 /* iucv socket options (SOL_IUCV) */
132 #define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */
133 #define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */
135 /* iucv related control messages (scm) */
136 #define SCM_IUCV_TRGCLS 0x0001 /* target class control message */
138 struct iucv_sock_list
{
139 struct hlist_head head
;
141 atomic_t autobind_name
;
144 unsigned int iucv_sock_poll(struct file
*file
, struct socket
*sock
,
146 void iucv_sock_link(struct iucv_sock_list
*l
, struct sock
*s
);
147 void iucv_sock_unlink(struct iucv_sock_list
*l
, struct sock
*s
);
148 void iucv_accept_enqueue(struct sock
*parent
, struct sock
*sk
);
149 void iucv_accept_unlink(struct sock
*sk
);
150 struct sock
*iucv_accept_dequeue(struct sock
*parent
, struct socket
*newsock
);
152 #endif /* __IUCV_H */