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_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
  92 static inline int ncp_conn_valid(struct ncp_server *server)
  93 {
  94         return ((server->conn_status & 0x11) == 0);
  95 }
  96
  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