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 
14 #ifdef __KERNEL__
15 
16 #define NCP_DEFAULT_OPTIONS 0		/* 2 for packet signatures */
17 
18 struct ncp_server {
19 
20 	struct ncp_mount_data_kernel m;	/* Nearly all of the mount data is of
21 					   interest for us later, so we store
22 					   it completely. */
23 
24 	__u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];
25 
26 	struct file *ncp_filp;	/* File pointer to ncp socket */
27 
28 	u8 sequence;
29 	u8 task;
30 	u16 connection;		/* Remote connection number */
31 
32 	u8 completion;		/* Status message from server */
33 	u8 conn_status;		/* Bit 4 = 1 ==> Server going down, no
34 				   requests allowed anymore.
35 				   Bit 0 = 1 ==> Server is down. */
36 
37 	int buffer_size;	/* Negotiated bufsize */
38 
39 	int reply_size;		/* Size of last reply */
40 
41 	int packet_size;
42 	unsigned char *packet;	/* Here we prepare requests and
43 				   receive replies */
44 
45 	int lock;		/* To prevent mismatch in protocols. */
46 	struct semaphore sem;
47 
48 	int current_size;	/* for packet preparation */
49 	int has_subfunction;
50 	int ncp_reply_size;
51 
52 	int root_setuped;
53 
54 	/* info for packet signing */
55 	int sign_wanted;	/* 1=Server needs signed packets */
56 	int sign_active;	/* 0=don't do signing, 1=do */
57 	char sign_root[8];	/* generated from password and encr. key */
58 	char sign_last[16];
59 
60 	/* Authentication info: NDS or BINDERY, username */
61 	struct {
62 		int	auth_type;
63 		size_t	object_name_len;
64 		void*	object_name;
65 		int	object_type;
66 	} auth;
67 	/* Password info */
68 	struct {
69 		size_t	len;
70 		void*	data;
71 	} priv;
72 
73 	/* nls info: codepage for volume and charset for I/O */
74 	struct nls_table *nls_vol;
75 	struct nls_table *nls_io;
76 
77 	/* maximum age in jiffies */
78 	int dentry_ttl;
79 
80 	/* miscellaneous */
81 	unsigned int flags;
82 };
83 
84 #define ncp_sb_info	ncp_server
85 
86 #define NCP_FLAG_UTF8	1
87 
88 #define NCP_CLR_FLAG(server, flag)	((server)->flags &= ~(flag))
89 #define NCP_SET_FLAG(server, flag)	((server)->flags |= (flag))
90 #define NCP_IS_FLAG(server, flag)	((server)->flags & (flag))
91 
ncp_conn_valid(struct ncp_server * server)92 static inline int ncp_conn_valid(struct ncp_server *server)
93 {
94 	return ((server->conn_status & 0x11) == 0);
95 }
96 
ncp_invalidate_conn(struct ncp_server * server)97 static inline void ncp_invalidate_conn(struct ncp_server *server)
98 {
99 	server->conn_status |= 0x01;
100 }
101 
102 #endif				/* __KERNEL__ */
103 
104 #endif
105 
106