]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
eac3731b JH |
2 | /* |
3 | * Copyright 2006 IBM Corporation | |
4 | * IUCV protocol stack for Linux on zSeries | |
5 | * Version 1.0 | |
6 | * Author(s): Jennifer Hunt <jenhunt@us.ibm.com> | |
7 | * | |
8 | */ | |
9 | ||
10 | #ifndef __AFIUCV_H | |
11 | #define __AFIUCV_H | |
12 | ||
13 | #include <asm/types.h> | |
14 | #include <asm/byteorder.h> | |
15 | #include <linux/list.h> | |
16 | #include <linux/poll.h> | |
17 | #include <linux/socket.h> | |
3881ac44 | 18 | #include <net/iucv/iucv.h> |
eac3731b JH |
19 | |
20 | #ifndef AF_IUCV | |
21 | #define AF_IUCV 32 | |
22 | #define PF_IUCV AF_IUCV | |
23 | #endif | |
24 | ||
25 | /* Connection and socket states */ | |
26 | enum { | |
27 | IUCV_CONNECTED = 1, | |
28 | IUCV_OPEN, | |
29 | IUCV_BOUND, | |
30 | IUCV_LISTEN, | |
eac3731b | 31 | IUCV_DISCONN, |
561e0360 | 32 | IUCV_CLOSING, |
eac3731b JH |
33 | IUCV_CLOSED |
34 | }; | |
35 | ||
36 | #define IUCV_QUEUELEN_DEFAULT 65535 | |
3881ac44 | 37 | #define IUCV_HIPER_MSGLIM_DEFAULT 128 |
eac3731b JH |
38 | #define IUCV_CONN_TIMEOUT (HZ * 40) |
39 | #define IUCV_DISCONN_TIMEOUT (HZ * 2) | |
40 | #define IUCV_CONN_IDLE_TIMEOUT (HZ * 60) | |
41 | #define IUCV_BUFSIZE_DEFAULT 32768 | |
42 | ||
43 | /* IUCV socket address */ | |
44 | struct sockaddr_iucv { | |
45 | sa_family_t siucv_family; | |
46 | unsigned short siucv_port; /* Reserved */ | |
47 | unsigned int siucv_addr; /* Reserved */ | |
48 | char siucv_nodeid[8]; /* Reserved */ | |
49 | char siucv_user_id[8]; /* Guest User Id */ | |
50 | char siucv_name[8]; /* Application Name */ | |
51 | }; | |
52 | ||
53 | ||
54 | /* Common socket structures and functions */ | |
f0703c80 UB |
55 | struct sock_msg_q { |
56 | struct iucv_path *path; | |
57 | struct iucv_message msg; | |
58 | struct list_head list; | |
59 | spinlock_t lock; | |
60 | }; | |
eac3731b | 61 | |
3881ac44 UB |
62 | #define AF_IUCV_FLAG_ACK 0x1 |
63 | #define AF_IUCV_FLAG_SYN 0x2 | |
64 | #define AF_IUCV_FLAG_FIN 0x4 | |
65 | #define AF_IUCV_FLAG_WIN 0x8 | |
82492a35 | 66 | #define AF_IUCV_FLAG_SHT 0x10 |
3881ac44 UB |
67 | |
68 | struct af_iucv_trans_hdr { | |
69 | u16 magic; | |
70 | u8 version; | |
71 | u8 flags; | |
72 | u16 window; | |
73 | char destNodeID[8]; | |
74 | char destUserID[8]; | |
75 | char destAppName[16]; | |
76 | char srcNodeID[8]; | |
77 | char srcUserID[8]; | |
78 | char srcAppName[16]; /* => 70 bytes */ | |
79 | struct iucv_message iucv_hdr; /* => 33 bytes */ | |
80 | u8 pad; /* total 104 bytes */ | |
81 | } __packed; | |
82 | ||
83 | enum iucv_tx_notify { | |
84 | /* transmission of skb is completed and was successful */ | |
85 | TX_NOTIFY_OK = 0, | |
86 | /* target is unreachable */ | |
87 | TX_NOTIFY_UNREACHABLE = 1, | |
88 | /* transfer pending queue full */ | |
89 | TX_NOTIFY_TPQFULL = 2, | |
90 | /* general error */ | |
91 | TX_NOTIFY_GENERALERROR = 3, | |
92 | /* transmission of skb is pending - may interleave | |
93 | * with TX_NOTIFY_DELAYED_* */ | |
94 | TX_NOTIFY_PENDING = 4, | |
95 | /* transmission of skb was done successfully (delayed) */ | |
96 | TX_NOTIFY_DELAYED_OK = 5, | |
97 | /* target unreachable (detected delayed) */ | |
98 | TX_NOTIFY_DELAYED_UNREACHABLE = 6, | |
99 | /* general error (detected delayed) */ | |
100 | TX_NOTIFY_DELAYED_GENERALERROR = 7, | |
101 | }; | |
102 | ||
eac3731b JH |
103 | #define iucv_sk(__sk) ((struct iucv_sock *) __sk) |
104 | ||
3881ac44 UB |
105 | #define AF_IUCV_TRANS_IUCV 0 |
106 | #define AF_IUCV_TRANS_HIPER 1 | |
107 | ||
eac3731b JH |
108 | struct iucv_sock { |
109 | struct sock sk; | |
110 | char src_user_id[8]; | |
111 | char src_name[8]; | |
112 | char dst_user_id[8]; | |
113 | char dst_name[8]; | |
114 | struct list_head accept_q; | |
febca281 | 115 | spinlock_t accept_q_lock; |
eac3731b JH |
116 | struct sock *parent; |
117 | struct iucv_path *path; | |
800c5eb7 | 118 | struct net_device *hs_dev; |
eac3731b | 119 | struct sk_buff_head send_skb_q; |
561e0360 | 120 | struct sk_buff_head backlog_skb_q; |
f0703c80 | 121 | struct sock_msg_q message_q; |
eac3731b | 122 | unsigned int send_tag; |
9d5c5d8f | 123 | u8 flags; |
09488e2e | 124 | u16 msglimit; |
3881ac44 UB |
125 | u16 msglimit_peer; |
126 | atomic_t msg_sent; | |
127 | atomic_t msg_recv; | |
128 | atomic_t pendings; | |
129 | int transport; | |
130 | void (*sk_txnotify)(struct sk_buff *skb, | |
131 | enum iucv_tx_notify n); | |
eac3731b JH |
132 | }; |
133 | ||
f9c41a62 UB |
134 | struct iucv_skb_cb { |
135 | u32 class; /* target class of message */ | |
136 | u32 tag; /* tag associated with message */ | |
137 | u32 offset; /* offset for skb receival */ | |
138 | }; | |
139 | ||
140 | #define IUCV_SKB_CB(__skb) ((struct iucv_skb_cb *)&((__skb)->cb[0])) | |
141 | ||
9d5c5d8f HB |
142 | /* iucv socket options (SOL_IUCV) */ |
143 | #define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */ | |
09488e2e | 144 | #define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */ |
51363b87 | 145 | #define SO_MSGSIZE 0x0800 /* get maximum msgsize */ |
9d5c5d8f | 146 | |
44b1e6b5 HB |
147 | /* iucv related control messages (scm) */ |
148 | #define SCM_IUCV_TRGCLS 0x0001 /* target class control message */ | |
149 | ||
eac3731b JH |
150 | struct iucv_sock_list { |
151 | struct hlist_head head; | |
152 | rwlock_t lock; | |
153 | atomic_t autobind_name; | |
154 | }; | |
155 | ||
eac3731b JH |
156 | unsigned int iucv_sock_poll(struct file *file, struct socket *sock, |
157 | poll_table *wait); | |
eac3731b JH |
158 | void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); |
159 | void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); | |
eac3731b JH |
160 | void iucv_accept_enqueue(struct sock *parent, struct sock *sk); |
161 | void iucv_accept_unlink(struct sock *sk); | |
162 | struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock); | |
163 | ||
164 | #endif /* __IUCV_H */ |