Commit | Line | Data |
---|---|---|
eac3731b JH |
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> | |
3881ac44 | 17 | #include <net/iucv/iucv.h> |
eac3731b JH |
18 | |
19 | #ifndef AF_IUCV | |
20 | #define AF_IUCV 32 | |
21 | #define PF_IUCV AF_IUCV | |
22 | #endif | |
23 | ||
24 | /* Connection and socket states */ | |
25 | enum { | |
26 | IUCV_CONNECTED = 1, | |
27 | IUCV_OPEN, | |
28 | IUCV_BOUND, | |
29 | IUCV_LISTEN, | |
eac3731b | 30 | IUCV_DISCONN, |
561e0360 | 31 | IUCV_CLOSING, |
eac3731b JH |
32 | IUCV_CLOSED |
33 | }; | |
34 | ||
35 | #define IUCV_QUEUELEN_DEFAULT 65535 | |
3881ac44 | 36 | #define IUCV_HIPER_MSGLIM_DEFAULT 128 |
eac3731b JH |
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 */ | |
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 */ | |
50 | }; | |
51 | ||
52 | ||
53 | /* Common socket structures and functions */ | |
f0703c80 UB |
54 | struct sock_msg_q { |
55 | struct iucv_path *path; | |
56 | struct iucv_message msg; | |
57 | struct list_head list; | |
58 | spinlock_t lock; | |
59 | }; | |
eac3731b | 60 | |
3881ac44 UB |
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 | |
82492a35 | 65 | #define AF_IUCV_FLAG_SHT 0x10 |
3881ac44 UB |
66 | |
67 | struct 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 | ||
82 | enum 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 | ||
eac3731b JH |
102 | #define iucv_sk(__sk) ((struct iucv_sock *) __sk) |
103 | ||
3881ac44 UB |
104 | #define AF_IUCV_TRANS_IUCV 0 |
105 | #define AF_IUCV_TRANS_HIPER 1 | |
106 | ||
eac3731b JH |
107 | struct 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; | |
febca281 | 114 | spinlock_t accept_q_lock; |
eac3731b JH |
115 | struct sock *parent; |
116 | struct iucv_path *path; | |
800c5eb7 | 117 | struct net_device *hs_dev; |
eac3731b | 118 | struct sk_buff_head send_skb_q; |
561e0360 | 119 | struct sk_buff_head backlog_skb_q; |
f0703c80 | 120 | struct sock_msg_q message_q; |
eac3731b | 121 | unsigned int send_tag; |
9d5c5d8f | 122 | u8 flags; |
09488e2e | 123 | u16 msglimit; |
3881ac44 UB |
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); | |
eac3731b JH |
131 | }; |
132 | ||
f9c41a62 UB |
133 | struct 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 | ||
9d5c5d8f HB |
141 | /* iucv socket options (SOL_IUCV) */ |
142 | #define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */ | |
09488e2e | 143 | #define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */ |
51363b87 | 144 | #define SO_MSGSIZE 0x0800 /* get maximum msgsize */ |
9d5c5d8f | 145 | |
44b1e6b5 HB |
146 | /* iucv related control messages (scm) */ |
147 | #define SCM_IUCV_TRGCLS 0x0001 /* target class control message */ | |
148 | ||
eac3731b JH |
149 | struct iucv_sock_list { |
150 | struct hlist_head head; | |
151 | rwlock_t lock; | |
152 | atomic_t autobind_name; | |
153 | }; | |
154 | ||
eac3731b JH |
155 | unsigned int iucv_sock_poll(struct file *file, struct socket *sock, |
156 | poll_table *wait); | |
eac3731b JH |
157 | void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); |
158 | void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); | |
eac3731b JH |
159 | void iucv_accept_enqueue(struct sock *parent, struct sock *sk); |
160 | void iucv_accept_unlink(struct sock *sk); | |
161 | struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock); | |
162 | ||
163 | #endif /* __IUCV_H */ |