/* SPDX-License-Identifier: GPL-2.0 */
/*
* 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 0 x1
#define AF_IUCV_FLAG_SYN 0 x2
#define AF_IUCV_FLAG_FIN 0 x4
#define AF_IUCV_FLAG_WIN 0 x8
#define AF_IUCV_FLAG_SHT 0 x10
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;
static inline struct af_iucv_trans_hdr *iucv_trans_hdr(struct sk_buff *skb)
{
return (struct af_iucv_trans_hdr *)skb_network_header(skb);
}
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;
struct_group(init,
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 skbs_in_xmit;
atomic_t msg_sent;
atomic_t msg_recv;
atomic_t pendings;
int transport;
void (*sk_txnotify)(struct sock *sk,
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 0 x0080 /* send/recv IPRM_DATA msgs */
#define SO_MSGLIMIT 0 x1000 /* get/set IUCV MSGLIMIT */
#define SO_MSGSIZE 0 x0800 /* get maximum msgsize */
/* iucv related control messages (scm) */
#define SCM_IUCV_TRGCLS 0 x0001 /* target class control message */
struct iucv_sock_list {
struct hlist_head head;
rwlock_t lock;
atomic_t autobind_name;
};
#endif /* __IUCV_H */
Messung V0.5 in Prozent C=94 H=94 G=93
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-07)
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