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Commit | Line | Data |
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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 */ |
55 | unsigned char *rxbuf; /* Storage for reply to current request */ | |
1da177e4 LT |
56 | |
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; | |
65 | ||
66 | /* info for packet signing */ | |
67 | int sign_wanted; /* 1=Server needs signed packets */ | |
68 | int sign_active; /* 0=don't do signing, 1=do */ | |
69 | char sign_root[8]; /* generated from password and encr. key */ | |
70 | char sign_last[16]; | |
71 | ||
72 | /* Authentication info: NDS or BINDERY, username */ | |
73 | struct { | |
74 | int auth_type; | |
75 | size_t object_name_len; | |
76 | void* object_name; | |
77 | int object_type; | |
78 | } auth; | |
79 | /* Password info */ | |
80 | struct { | |
81 | size_t len; | |
82 | void* data; | |
83 | } priv; | |
84 | ||
85 | /* nls info: codepage for volume and charset for I/O */ | |
86 | struct nls_table *nls_vol; | |
87 | struct nls_table *nls_io; | |
88 | ||
89 | /* maximum age in jiffies */ | |
90 | int dentry_ttl; | |
91 | ||
92 | /* miscellaneous */ | |
93 | unsigned int flags; | |
94 | ||
95 | spinlock_t requests_lock; /* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */ | |
96 | ||
97 | void (*data_ready)(struct sock* sk, int len); | |
98 | void (*error_report)(struct sock* sk); | |
99 | void (*write_space)(struct sock* sk); /* STREAM mode only */ | |
100 | struct { | |
101 | struct work_struct tq; /* STREAM/DGRAM: data/error ready */ | |
102 | struct ncp_request_reply* creq; /* STREAM/DGRAM: awaiting reply from this request */ | |
8e3f9045 | 103 | struct mutex creq_mutex; /* DGRAM only: lock accesses to rcv.creq */ |
1da177e4 LT |
104 | |
105 | unsigned int state; /* STREAM only: receiver state */ | |
106 | struct { | |
bc10502d ED |
107 | __u32 magic __packed; |
108 | __u32 len __packed; | |
109 | __u16 type __packed; | |
110 | __u16 p1 __packed; | |
111 | __u16 p2 __packed; | |
112 | __u16 p3 __packed; | |
113 | __u16 type2 __packed; | |
1da177e4 LT |
114 | } buf; /* STREAM only: temporary buffer */ |
115 | unsigned char* ptr; /* STREAM only: pointer to data */ | |
116 | size_t len; /* STREAM only: length of data to receive */ | |
117 | } rcv; | |
118 | struct { | |
119 | struct list_head requests; /* STREAM only: queued requests */ | |
120 | struct work_struct tq; /* STREAM only: transmitter ready */ | |
121 | struct ncp_request_reply* creq; /* STREAM only: currently transmitted entry */ | |
122 | } tx; | |
123 | struct timer_list timeout_tm; /* DGRAM only: timeout timer */ | |
124 | struct work_struct timeout_tq; /* DGRAM only: associated queue, we run timers from process context */ | |
125 | int timeout_last; /* DGRAM only: current timeout length */ | |
126 | int timeout_retries; /* DGRAM only: retries left */ | |
127 | struct { | |
128 | size_t len; | |
129 | __u8 data[128]; | |
130 | } unexpected_packet; | |
f1970c73 | 131 | struct backing_dev_info bdi; |
1da177e4 LT |
132 | }; |
133 | ||
c4028958 DH |
134 | extern void ncp_tcp_rcv_proc(struct work_struct *work); |
135 | extern void ncp_tcp_tx_proc(struct work_struct *work); | |
136 | extern void ncpdgram_rcv_proc(struct work_struct *work); | |
137 | extern void ncpdgram_timeout_proc(struct work_struct *work); | |
1da177e4 LT |
138 | extern void ncpdgram_timeout_call(unsigned long server); |
139 | extern void ncp_tcp_data_ready(struct sock* sk, int len); | |
140 | extern void ncp_tcp_write_space(struct sock* sk); | |
141 | extern void ncp_tcp_error_report(struct sock* sk); | |
142 | ||
143 | #define NCP_FLAG_UTF8 1 | |
144 | ||
145 | #define NCP_CLR_FLAG(server, flag) ((server)->flags &= ~(flag)) | |
146 | #define NCP_SET_FLAG(server, flag) ((server)->flags |= (flag)) | |
147 | #define NCP_IS_FLAG(server, flag) ((server)->flags & (flag)) | |
148 | ||
149 | static inline int ncp_conn_valid(struct ncp_server *server) | |
150 | { | |
151 | return ((server->conn_status & 0x11) == 0); | |
152 | } | |
153 | ||
154 | static inline void ncp_invalidate_conn(struct ncp_server *server) | |
155 | { | |
156 | server->conn_status |= 0x01; | |
157 | } | |
158 | ||
159 | #endif /* __KERNEL__ */ | |
160 | ||
161 | #endif | |
162 |