LXR linux-old/include/linux/smb_fs

   1/*
   2 *  smb_fs_sb.h
   3 *
   4 *  Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
   5 *  Copyright (C) 1997 by Volker Lendecke
   6 *
   7 */
   8
   9#ifndef _SMB_FS_SB
  10#define _SMB_FS_SB
  11
  12#ifdef __KERNEL__
  13
  14#include <linux/types.h>
  15#include <linux/smb.h>
  16
  17/* structure access macros */
  18#define server_from_inode(inode) (&(inode)->i_sb->u.smbfs_sb)
  19#define server_from_dentry(dentry) (&(dentry)->d_sb->u.smbfs_sb)
  20#define SB_of(server) ((struct super_block *) ((char *)(server) - \
  21        (unsigned long)(&((struct super_block *)0)->u.smbfs_sb)))
  22
  23struct smb_sb_info {
  24        enum smb_conn_state state;
  25        struct file * sock_file;
  26
  27        struct smb_mount_data_kernel *mnt;
  28        unsigned char *temp_buf;
  29
  30        /* Connections are counted. Each time a new socket arrives,
  31         * generation is incremented.
  32         */
  33        unsigned int generation;
  34        pid_t conn_pid;
  35        struct smb_conn_opt opt;
  36
  37        struct semaphore sem;
  38        wait_queue_head_t wait;
  39
  40        __u32              packet_size;
  41        unsigned char *    packet;
  42        unsigned short     rcls; /* The error codes we received */
  43        unsigned short     err;
  44
  45        /* We use our own data_ready callback, but need the original one */
  46        void *data_ready;
  47
  48        /* nls pointers for codepage conversions */
  49        struct nls_table *remote_nls;
  50        struct nls_table *local_nls;
  51
  52        /* utf8 can make strings longer so we can't do in-place conversion.
  53           This is a buffer for temporary stuff. We only need one so no need
  54           to put it on the stack. This points to temp_buf space. */
  55        char *name_buf;
  56
  57        struct smb_ops *ops;
  58};
  59
  60
  61static inline void
  62smb_lock_server(struct smb_sb_info *server)
  63{
  64        down(&(server->sem));
  65}
  66
  67static inline void
  68smb_unlock_server(struct smb_sb_info *server)
  69{
  70        up(&(server->sem));
  71}
  72
  73#endif /* __KERNEL__ */
  74
  75#endif
  76