[net-next-2.6.git] / include / linux / ncp_fs_sb.h

/*
 *  ncp_fs_sb.h
 *
 *  Copyright (C) 1995, 1996 by Volker Lendecke
 *
 */

#ifndef _NCP_FS_SB
#define _NCP_FS_SB

#include <linux/types.h>
#include <linux/ncp_mount.h>
#include <linux/net.h>
#include <linux/mutex.h>
#include <linux/backing-dev.h>

#ifdef __KERNEL__

#include <linux/workqueue.h>

#define NCP_DEFAULT_OPTIONS 0		/* 2 for packet signatures */

struct sock;

struct ncp_server {

	struct ncp_mount_data_kernel m;	/* Nearly all of the mount data is of
					   interest for us later, so we store
					   it completely. */

	__u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];

	struct file *ncp_filp;	/* File pointer to ncp socket */
	struct socket *ncp_sock;/* ncp socket */
	struct file *info_filp;
	struct socket *info_sock;

	u8 sequence;
	u8 task;
	u16 connection;		/* Remote connection number */

	u8 completion;		/* Status message from server */
	u8 conn_status;		/* Bit 4 = 1 ==> Server going down, no
				   requests allowed anymore.
				   Bit 0 = 1 ==> Server is down. */

	int buffer_size;	/* Negotiated bufsize */

	int reply_size;		/* Size of last reply */

	int packet_size;
	unsigned char *packet;	/* Here we prepare requests and
				   receive replies */
	unsigned char *txbuf;	/* Storage for current request */
	unsigned char *rxbuf;	/* Storage for reply to current request */

	int lock;		/* To prevent mismatch in protocols. */
	struct mutex mutex;

	int current_size;	/* for packet preparation */
	int has_subfunction;
	int ncp_reply_size;

	int root_setuped;
	struct mutex root_setup_lock;

	/* info for packet signing */
	int sign_wanted;	/* 1=Server needs signed packets */
	int sign_active;	/* 0=don't do signing, 1=do */
	char sign_root[8];	/* generated from password and encr. key */
	char sign_last[16];	

	/* Authentication info: NDS or BINDERY, username */
	struct {
		int	auth_type;
		size_t	object_name_len;
		void*	object_name;
		int	object_type;
	} auth;
	/* Password info */
	struct {
		size_t	len;
		void*	data;
	} priv;
	struct rw_semaphore auth_rwsem;

	/* nls info: codepage for volume and charset for I/O */
	struct nls_table *nls_vol;
	struct nls_table *nls_io;

	/* maximum age in jiffies */
	atomic_t dentry_ttl;

	/* miscellaneous */
	unsigned int flags;

	spinlock_t requests_lock;	/* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */

	void (*data_ready)(struct sock* sk, int len);
	void (*error_report)(struct sock* sk);
	void (*write_space)(struct sock* sk);	/* STREAM mode only */
	struct {
		struct work_struct tq;		/* STREAM/DGRAM: data/error ready */
		struct ncp_request_reply* creq;	/* STREAM/DGRAM: awaiting reply from this request */
		struct mutex creq_mutex;	/* DGRAM only: lock accesses to rcv.creq */

		unsigned int state;		/* STREAM only: receiver state */
		struct {
			__u32 magic __packed;
			__u32 len __packed;
			__u16 type __packed;
			__u16 p1 __packed;
			__u16 p2 __packed;
			__u16 p3 __packed;
			__u16 type2 __packed;
		} buf;				/* STREAM only: temporary buffer */
		unsigned char* ptr;		/* STREAM only: pointer to data */
		size_t len;			/* STREAM only: length of data to receive */
	} rcv;
	struct {
		struct list_head requests;	/* STREAM only: queued requests */
		struct work_struct tq;		/* STREAM only: transmitter ready */
		struct ncp_request_reply* creq;	/* STREAM only: currently transmitted entry */
	} tx;
	struct timer_list timeout_tm;		/* DGRAM only: timeout timer */
	struct work_struct timeout_tq;		/* DGRAM only: associated queue, we run timers from process context */
	int timeout_last;			/* DGRAM only: current timeout length */
	int timeout_retries;			/* DGRAM only: retries left */
	struct {
		size_t len;
		__u8 data[128];
	} unexpected_packet;
	struct backing_dev_info bdi;
};

extern void ncp_tcp_rcv_proc(struct work_struct *work);
extern void ncp_tcp_tx_proc(struct work_struct *work);
extern void ncpdgram_rcv_proc(struct work_struct *work);
extern void ncpdgram_timeout_proc(struct work_struct *work);
extern void ncpdgram_timeout_call(unsigned long server);
extern void ncp_tcp_data_ready(struct sock* sk, int len);
extern void ncp_tcp_write_space(struct sock* sk);
extern void ncp_tcp_error_report(struct sock* sk);

#define NCP_FLAG_UTF8	1

#define NCP_CLR_FLAG(server, flag)	((server)->flags &= ~(flag))
#define NCP_SET_FLAG(server, flag)	((server)->flags |= (flag))
#define NCP_IS_FLAG(server, flag)	((server)->flags & (flag))

static inline int ncp_conn_valid(struct ncp_server *server)
{
	return ((server->conn_status & 0x11) == 0);
}

static inline void ncp_invalidate_conn(struct ncp_server *server)
{
	server->conn_status |= 0x01;
}

#endif				/* __KERNEL__ */

#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* ncp_fs_sb.h
	3	*
	4	* Copyright (C) 1995, 1996 by Volker Lendecke
	5	*
	6	*/
	7
	8	#ifndef _NCP_FS_SB
	9	#define _NCP_FS_SB
	10
	11	#include <linux/types.h>
	12	#include <linux/ncp_mount.h>
	13	#include <linux/net.h>
8e3f9045	14	#include <linux/mutex.h>
f1970c73	15	#include <linux/backing-dev.h>
1da177e4 LT	16
	17	#ifdef __KERNEL__
	18
	19	#include <linux/workqueue.h>
	20
	21	#define NCP_DEFAULT_OPTIONS 0 /* 2 for packet signatures */
	22
	23	struct sock;
	24
	25	struct ncp_server {
	26
	27	struct ncp_mount_data_kernel m; /* Nearly all of the mount data is of
	28	interest for us later, so we store
	29	it completely. */
	30
	31	__u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];
	32
	33	struct file ncp_filp; / File pointer to ncp socket */
	34	struct socket ncp_sock;/ ncp socket */
	35	struct file *info_filp;
	36	struct socket *info_sock;
	37
	38	u8 sequence;
	39	u8 task;
	40	u16 connection; /* Remote connection number */
	41
	42	u8 completion; /* Status message from server */
	43	u8 conn_status; /* Bit 4 = 1 ==> Server going down, no
	44	requests allowed anymore.
	45	Bit 0 = 1 ==> Server is down. */
	46
	47	int buffer_size; /* Negotiated bufsize */
	48
	49	int reply_size; /* Size of last reply */
	50
	51	int packet_size;
	52	unsigned char packet; / Here we prepare requests and
	53	receive replies */
c5f93cf1 PO	54	unsigned char txbuf; / Storage for current request */
c5f93cf1 PO	55	unsigned char rxbuf; / Storage for reply to current request */
1da177e4 LT	56
1da177e4 LT	57	int lock; /* To prevent mismatch in protocols. */
8e3f9045	58	struct mutex mutex;
1da177e4 LT	59
	60	int current_size; /* for packet preparation */
	61	int has_subfunction;
	62	int ncp_reply_size;
	63
	64	int root_setuped;
2e54eb96	65	struct mutex root_setup_lock;
1da177e4 LT	66
	67	/* info for packet signing */
	68	int sign_wanted; /* 1=Server needs signed packets */
	69	int sign_active; /* 0=don't do signing, 1=do */
	70	char sign_root[8]; /* generated from password and encr. key */
	71	char sign_last[16];
	72
	73	/* Authentication info: NDS or BINDERY, username */
	74	struct {
	75	int auth_type;
	76	size_t object_name_len;
	77	void* object_name;
	78	int object_type;
	79	} auth;
	80	/* Password info */
	81	struct {
	82	size_t len;
	83	void* data;
	84	} priv;
2e54eb96	85	struct rw_semaphore auth_rwsem;
1da177e4 LT	86
	87	/* nls info: codepage for volume and charset for I/O */
	88	struct nls_table *nls_vol;
	89	struct nls_table *nls_io;
	90
	91	/* maximum age in jiffies */
2e54eb96	92	atomic_t dentry_ttl;
1da177e4 LT	93
	94	/* miscellaneous */
	95	unsigned int flags;
	96
	97	spinlock_t requests_lock; /* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */
	98
	99	void (data_ready)(struct sock sk, int len);
	100	void (error_report)(struct sock sk);
	101	void (write_space)(struct sock sk); /* STREAM mode only */
	102	struct {
	103	struct work_struct tq; /* STREAM/DGRAM: data/error ready */
	104	struct ncp_request_reply* creq; /* STREAM/DGRAM: awaiting reply from this request */
8e3f9045	105	struct mutex creq_mutex; /* DGRAM only: lock accesses to rcv.creq */
1da177e4 LT	106
	107	unsigned int state; /* STREAM only: receiver state */
	108	struct {
bc10502d ED	109	__u32 magic __packed;
	110	__u32 len __packed;
	111	__u16 type __packed;
	112	__u16 p1 __packed;
	113	__u16 p2 __packed;
	114	__u16 p3 __packed;
	115	__u16 type2 __packed;
1da177e4 LT	116	} buf; /* STREAM only: temporary buffer */
	117	unsigned char* ptr; /* STREAM only: pointer to data */
	118	size_t len; /* STREAM only: length of data to receive */
	119	} rcv;
	120	struct {
	121	struct list_head requests; /* STREAM only: queued requests */
	122	struct work_struct tq; /* STREAM only: transmitter ready */
	123	struct ncp_request_reply* creq; /* STREAM only: currently transmitted entry */
	124	} tx;
	125	struct timer_list timeout_tm; /* DGRAM only: timeout timer */
	126	struct work_struct timeout_tq; /* DGRAM only: associated queue, we run timers from process context */
	127	int timeout_last; /* DGRAM only: current timeout length */
	128	int timeout_retries; /* DGRAM only: retries left */
	129	struct {
	130	size_t len;
	131	__u8 data[128];
	132	} unexpected_packet;
f1970c73	133	struct backing_dev_info bdi;
1da177e4 LT	134	};
1da177e4 LT	135
c4028958 DH	136	extern void ncp_tcp_rcv_proc(struct work_struct *work);
	137	extern void ncp_tcp_tx_proc(struct work_struct *work);
	138	extern void ncpdgram_rcv_proc(struct work_struct *work);
	139	extern void ncpdgram_timeout_proc(struct work_struct *work);
1da177e4 LT	140	extern void ncpdgram_timeout_call(unsigned long server);
	141	extern void ncp_tcp_data_ready(struct sock* sk, int len);
	142	extern void ncp_tcp_write_space(struct sock* sk);
	143	extern void ncp_tcp_error_report(struct sock* sk);
	144
	145	#define NCP_FLAG_UTF8 1
	146
	147	#define NCP_CLR_FLAG(server, flag) ((server)->flags &= ~(flag))
	148	#define NCP_SET_FLAG(server, flag) ((server)->flags \|= (flag))
	149	#define NCP_IS_FLAG(server, flag) ((server)->flags & (flag))
	150
	151	static inline int ncp_conn_valid(struct ncp_server *server)
	152	{
	153	return ((server->conn_status & 0x11) == 0);
	154	}
	155
	156	static inline void ncp_invalidate_conn(struct ncp_server *server)
	157	{
	158	server->conn_status \|= 0x01;
	159	}
	160
	161	#endif /* __KERNEL__ */
	162
	163	#endif
	164