include/linux/ncp_fs_sb.h

   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_BUFSIZE 1024
  17 #define NCP_DEFAULT_OPTIONS 0           /* 2 for packet signatures */
  18
  19 struct ncp_server {
  20
  21         struct ncp_mount_data_kernel m; /* Nearly all of the mount data is of
  22                                            interest for us later, so we store
  23                                            it completely. */
  24
  25         __u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];
  26
  27         struct file *ncp_filp;  /* File pointer to ncp socket */
  28
  29         u8 sequence;
  30         u8 task;
  31         u16 connection;         /* Remote connection number */
  32
  33         u8 completion;          /* Status message from server */
  34         u8 conn_status;         /* Bit 4 = 1 ==> Server going down, no
  35                                    requests allowed anymore.
  36                                    Bit 0 = 1 ==> Server is down. */
  37
  38         int buffer_size;        /* Negotiated bufsize */
  39
  40         int reply_size;         /* Size of last reply */
  41
  42         int packet_size;
  43         unsigned char *packet;  /* Here we prepare requests and
  44                                    receive replies */
  45
  46         int lock;               /* To prevent mismatch in protocols. */
  47         struct semaphore sem;
  48
  49         int current_size;       /* for packet preparation */
  50         int has_subfunction;
  51         int ncp_reply_size;
  52
  53         int root_setuped;
  54
  55         /* info for packet signing */
  56         int sign_wanted;        /* 1=Server needs signed packets */
  57         int sign_active;        /* 0=don't do signing, 1=do */
  58         char sign_root[8];      /* generated from password and encr. key */
  59         char sign_last[16];
  60
  61         /* Authentication info: NDS or BINDERY, username */
  62         struct {
  63                 int     auth_type;
  64                 size_t  object_name_len;
  65                 void*   object_name;
  66                 int     object_type;
  67         } auth;
  68         /* Password info */
  69         struct {
  70                 size_t  len;
  71                 void*   data;
  72         } priv;
  73
  74         /* nls info: codepage for volume and charset for I/O */
  75         struct nls_table *nls_vol;
  76         struct nls_table *nls_io;
  77
  78         /* maximum age in jiffies */
  79         int dentry_ttl;
  80
  81         /* miscellaneous */
  82         unsigned int flags;
  83 };
  84
  85 #define ncp_sb_info     ncp_server
  86
  87 #define NCP_FLAG_UTF8   1
  88
  89 #define NCP_CLR_FLAG(server, flag)      ((server)->flags &= ~(flag))
  90 #define NCP_SET_FLAG(server, flag)      ((server)->flags |= (flag))
  91 #define NCP_IS_FLAG(server, flag)       ((server)->flags & (flag))
  92
  93 static inline int ncp_conn_valid(struct ncp_server *server)
  94 {
  95         return ((server->conn_status & 0x11) == 0);
  96 }
  97
  98 static inline void ncp_invalidate_conn(struct ncp_server *server)
  99 {
 100         server->conn_status |= 0x01;
 101 }
 102
 103 #endif                          /* __KERNEL__ */
 104
 105 #endif
 106