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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#include <net/iucv/iucv.h>
18
19#ifndef AF_IUCV
20#define AF_IUCV 32
21#define PF_IUCV AF_IUCV
22#endif
23
24/* Connection and socket states */
25enum {
26 IUCV_CONNECTED = 1,
27 IUCV_OPEN,
28 IUCV_BOUND,
29 IUCV_LISTEN,
30 IUCV_DISCONN,
31 IUCV_CLOSING,
32 IUCV_CLOSED
33};
34
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
41
42/* IUCV socket address */
43struct 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 */
50};
51
52
53/* Common socket structures and functions */
54struct sock_msg_q {
55 struct iucv_path *path;
56 struct iucv_message msg;
57 struct list_head list;
58 spinlock_t lock;
59};
60
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
65#define AF_IUCV_FLAG_SHT 0x10
66
67struct af_iucv_trans_hdr {
68 u16 magic;
69 u8 version;
70 u8 flags;
71 u16 window;
72 char destNodeID[8];
73 char destUserID[8];
74 char destAppName[16];
75 char srcNodeID[8];
76 char srcUserID[8];
77 char srcAppName[16]; /* => 70 bytes */
78 struct iucv_message iucv_hdr; /* => 33 bytes */
79 u8 pad; /* total 104 bytes */
80} __packed;
81
82enum iucv_tx_notify {
83 /* transmission of skb is completed and was successful */
84 TX_NOTIFY_OK = 0,
85 /* target is unreachable */
86 TX_NOTIFY_UNREACHABLE = 1,
87 /* transfer pending queue full */
88 TX_NOTIFY_TPQFULL = 2,
89 /* general error */
90 TX_NOTIFY_GENERALERROR = 3,
91 /* transmission of skb is pending - may interleave
92 * with TX_NOTIFY_DELAYED_* */
93 TX_NOTIFY_PENDING = 4,
94 /* transmission of skb was done successfully (delayed) */
95 TX_NOTIFY_DELAYED_OK = 5,
96 /* target unreachable (detected delayed) */
97 TX_NOTIFY_DELAYED_UNREACHABLE = 6,
98 /* general error (detected delayed) */
99 TX_NOTIFY_DELAYED_GENERALERROR = 7,
100};
101
102#define iucv_sk(__sk) ((struct iucv_sock *) __sk)
103
104#define AF_IUCV_TRANS_IUCV 0
105#define AF_IUCV_TRANS_HIPER 1
106
107struct iucv_sock {
108 struct sock sk;
109 char src_user_id[8];
110 char src_name[8];
111 char dst_user_id[8];
112 char dst_name[8];
113 struct list_head accept_q;
114 spinlock_t accept_q_lock;
115 struct sock *parent;
116 struct iucv_path *path;
117 struct net_device *hs_dev;
118 struct sk_buff_head send_skb_q;
119 struct sk_buff_head backlog_skb_q;
120 struct sock_msg_q message_q;
121 unsigned int send_tag;
122 u8 flags;
123 u16 msglimit;
124 u16 msglimit_peer;
125 atomic_t msg_sent;
126 atomic_t msg_recv;
127 atomic_t pendings;
128 int transport;
129 void (*sk_txnotify)(struct sk_buff *skb,
130 enum iucv_tx_notify n);
131};
132
133struct iucv_skb_cb {
134 u32 class; /* target class of message */
135 u32 tag; /* tag associated with message */
136 u32 offset; /* offset for skb receival */
137};
138
139#define IUCV_SKB_CB(__skb) ((struct iucv_skb_cb *)&((__skb)->cb[0]))
140
141/* iucv socket options (SOL_IUCV) */
142#define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */
143#define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */
144#define SO_MSGSIZE 0x0800 /* get maximum msgsize */
145
146/* iucv related control messages (scm) */
147#define SCM_IUCV_TRGCLS 0x0001 /* target class control message */
148
149struct iucv_sock_list {
150 struct hlist_head head;
151 rwlock_t lock;
152 atomic_t autobind_name;
153};
154
155unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
156 poll_table *wait);
157void iucv_sock_link(struct iucv_sock_list *l, struct sock *s);
158void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s);
159void iucv_accept_enqueue(struct sock *parent, struct sock *sk);
160void iucv_accept_unlink(struct sock *sk);
161struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock);
162
163#endif /* __IUCV_H */
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#include <net/iucv/iucv.h>
18
19#ifndef AF_IUCV
20#define AF_IUCV 32
21#define PF_IUCV AF_IUCV
22#endif
23
24/* Connection and socket states */
25enum {
26 IUCV_CONNECTED = 1,
27 IUCV_OPEN,
28 IUCV_BOUND,
29 IUCV_LISTEN,
30 IUCV_DISCONN,
31 IUCV_CLOSING,
32 IUCV_CLOSED
33};
34
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
41
42/* IUCV socket address */
43struct 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 */
50};
51
52
53/* Common socket structures and functions */
54struct sock_msg_q {
55 struct iucv_path *path;
56 struct iucv_message msg;
57 struct list_head list;
58 spinlock_t lock;
59};
60
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
65#define AF_IUCV_FLAG_SHT 0x10
66
67struct af_iucv_trans_hdr {
68 u16 magic;
69 u8 version;
70 u8 flags;
71 u16 window;
72 char destNodeID[8];
73 char destUserID[8];
74 char destAppName[16];
75 char srcNodeID[8];
76 char srcUserID[8];
77 char srcAppName[16]; /* => 70 bytes */
78 struct iucv_message iucv_hdr; /* => 33 bytes */
79 u8 pad; /* total 104 bytes */
80} __packed;
81
82enum iucv_tx_notify {
83 /* transmission of skb is completed and was successful */
84 TX_NOTIFY_OK = 0,
85 /* target is unreachable */
86 TX_NOTIFY_UNREACHABLE = 1,
87 /* transfer pending queue full */
88 TX_NOTIFY_TPQFULL = 2,
89 /* general error */
90 TX_NOTIFY_GENERALERROR = 3,
91 /* transmission of skb is pending - may interleave
92 * with TX_NOTIFY_DELAYED_* */
93 TX_NOTIFY_PENDING = 4,
94 /* transmission of skb was done successfully (delayed) */
95 TX_NOTIFY_DELAYED_OK = 5,
96 /* target unreachable (detected delayed) */
97 TX_NOTIFY_DELAYED_UNREACHABLE = 6,
98 /* general error (detected delayed) */
99 TX_NOTIFY_DELAYED_GENERALERROR = 7,
100};
101
102#define iucv_sk(__sk) ((struct iucv_sock *) __sk)
103
104#define AF_IUCV_TRANS_IUCV 0
105#define AF_IUCV_TRANS_HIPER 1
106
107struct iucv_sock {
108 struct sock sk;
109 char src_user_id[8];
110 char src_name[8];
111 char dst_user_id[8];
112 char dst_name[8];
113 struct list_head accept_q;
114 spinlock_t accept_q_lock;
115 struct sock *parent;
116 struct iucv_path *path;
117 struct net_device *hs_dev;
118 struct sk_buff_head send_skb_q;
119 struct sk_buff_head backlog_skb_q;
120 struct sock_msg_q message_q;
121 unsigned int send_tag;
122 u8 flags;
123 u16 msglimit;
124 u16 msglimit_peer;
125 atomic_t msg_sent;
126 atomic_t msg_recv;
127 atomic_t pendings;
128 int transport;
129 void (*sk_txnotify)(struct sk_buff *skb,
130 enum iucv_tx_notify n);
131};
132
133struct iucv_skb_cb {
134 u32 class; /* target class of message */
135 u32 tag; /* tag associated with message */
136 u32 offset; /* offset for skb receival */
137};
138
139#define IUCV_SKB_CB(__skb) ((struct iucv_skb_cb *)&((__skb)->cb[0]))
140
141/* iucv socket options (SOL_IUCV) */
142#define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */
143#define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */
144#define SO_MSGSIZE 0x0800 /* get maximum msgsize */
145
146/* iucv related control messages (scm) */
147#define SCM_IUCV_TRGCLS 0x0001 /* target class control message */
148
149struct iucv_sock_list {
150 struct hlist_head head;
151 rwlock_t lock;
152 atomic_t autobind_name;
153};
154
155unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
156 poll_table *wait);
157void iucv_sock_link(struct iucv_sock_list *l, struct sock *s);
158void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s);
159void iucv_accept_enqueue(struct sock *parent, struct sock *sk);
160void iucv_accept_unlink(struct sock *sk);
161struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock);
162
163#endif /* __IUCV_H */