4 * Copyright (C) 1995, 1996 by Volker Lendecke
11 #include <linux/types.h>
12 #include <linux/ncp_mount.h>
13 #include <linux/net.h>
14 #include <linux/mutex.h>
18 #include <linux/workqueue.h>
20 #define NCP_DEFAULT_OPTIONS 0 /* 2 for packet signatures */
26 struct ncp_mount_data_kernel m
; /* Nearly all of the mount data is of
27 interest for us later, so we store
30 __u8 name_space
[NCP_NUMBER_OF_VOLUMES
+ 2];
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
;
39 u16 connection
; /* Remote connection number */
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. */
46 int buffer_size
; /* Negotiated bufsize */
48 int reply_size
; /* Size of last reply */
51 unsigned char *packet
; /* Here we prepare requests and
53 unsigned char *txbuf
; /* Storage for current request */
54 unsigned char *rxbuf
; /* Storage for reply to current request */
56 int lock
; /* To prevent mismatch in protocols. */
59 int current_size
; /* for packet preparation */
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 */
71 /* Authentication info: NDS or BINDERY, username */
74 size_t object_name_len
;
84 /* nls info: codepage for volume and charset for I/O */
85 struct nls_table
*nls_vol
;
86 struct nls_table
*nls_io
;
88 /* maximum age in jiffies */
94 spinlock_t requests_lock
; /* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */
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 */
100 struct work_struct tq
; /* STREAM/DGRAM: data/error ready */
101 struct ncp_request_reply
* creq
; /* STREAM/DGRAM: awaiting reply from this request */
102 struct mutex creq_mutex
; /* DGRAM only: lock accesses to rcv.creq */
104 unsigned int state
; /* STREAM only: receiver state */
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 */
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 */
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 */
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
);
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
);
141 #define NCP_FLAG_UTF8 1
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))
147 static inline int ncp_conn_valid(struct ncp_server
*server
)
149 return ((server
->conn_status
& 0x11) == 0);
152 static inline void ncp_invalidate_conn(struct ncp_server
*server
)
154 server
->conn_status
|= 0x01;
157 #endif /* __KERNEL__ */
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