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