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
54 int lock; /* To prevent mismatch in protocols. */
57 int current_size; /* for packet preparation */
63 /* info for packet signing */
64 int sign_wanted; /* 1=Server needs signed packets */
65 int sign_active; /* 0=don't do signing, 1=do */
66 char sign_root[8]; /* generated from password and encr. key */
69 /* Authentication info: NDS or BINDERY, username */
72 size_t object_name_len;
82 /* nls info: codepage for volume and charset for I/O */
83 struct nls_table *nls_vol;
84 struct nls_table *nls_io;
86 /* maximum age in jiffies */
92 spinlock_t requests_lock; /* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */
94 void (*data_ready)(struct sock* sk, int len);
95 void (*error_report)(struct sock* sk);
96 void (*write_space)(struct sock* sk); /* STREAM mode only */
98 struct work_struct tq; /* STREAM/DGRAM: data/error ready */
99 struct ncp_request_reply* creq; /* STREAM/DGRAM: awaiting reply from this request */
100 struct mutex creq_mutex; /* DGRAM only: lock accesses to rcv.creq */
102 unsigned int state; /* STREAM only: receiver state */
104 __u32 magic __attribute__((packed));
105 __u32 len __attribute__((packed));
106 __u16 type __attribute__((packed));
107 __u16 p1 __attribute__((packed));
108 __u16 p2 __attribute__((packed));
109 __u16 p3 __attribute__((packed));
110 __u16 type2 __attribute__((packed));
111 } buf; /* STREAM only: temporary buffer */
112 unsigned char* ptr; /* STREAM only: pointer to data */
113 size_t len; /* STREAM only: length of data to receive */
116 struct list_head requests; /* STREAM only: queued requests */
117 struct work_struct tq; /* STREAM only: transmitter ready */
118 struct ncp_request_reply* creq; /* STREAM only: currently transmitted entry */
120 struct timer_list timeout_tm; /* DGRAM only: timeout timer */
121 struct work_struct timeout_tq; /* DGRAM only: associated queue, we run timers from process context */
122 int timeout_last; /* DGRAM only: current timeout length */
123 int timeout_retries; /* DGRAM only: retries left */
130 extern void ncp_tcp_rcv_proc(void *server);
131 extern void ncp_tcp_tx_proc(void *server);
132 extern void ncpdgram_rcv_proc(void *server);
133 extern void ncpdgram_timeout_proc(void *server);
134 extern void ncpdgram_timeout_call(unsigned long server);
135 extern void ncp_tcp_data_ready(struct sock* sk, int len);
136 extern void ncp_tcp_write_space(struct sock* sk);
137 extern void ncp_tcp_error_report(struct sock* sk);
139 #define NCP_FLAG_UTF8 1
141 #define NCP_CLR_FLAG(server, flag) ((server)->flags &= ~(flag))
142 #define NCP_SET_FLAG(server, flag) ((server)->flags |= (flag))
143 #define NCP_IS_FLAG(server, flag) ((server)->flags & (flag))
145 static inline int ncp_conn_valid(struct ncp_server *server)
147 return ((server->conn_status & 0x11) == 0);
150 static inline void ncp_invalidate_conn(struct ncp_server *server)
152 server->conn_status |= 0x01;
155 #endif /* __KERNEL__ */