[linux-block.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>

#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;

	/* 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;

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

	/* maximum age in jiffies */
	int 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 __attribute__((packed));
			__u32 len __attribute__((packed));
			__u16 type __attribute__((packed));
			__u16 p1 __attribute__((packed));
			__u16 p2 __attribute__((packed));
			__u16 p3 __attribute__((packed));
			__u16 type2 __attribute__((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;
};

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