include/net/9p/transport.h

   1 /*
   2  * include/net/9p/transport.h
   3  *
   4  * Transport Definition
   5  *
   6  *  Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net>
   7  *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License version 2
  11  *  as published by the Free Software Foundation.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to:
  20  *  Free Software Foundation
  21  *  51 Franklin Street, Fifth Floor
  22  *  Boston, MA  02111-1301  USA
  23  *
  24  */
  25
  26 #ifndef NET_9P_TRANSPORT_H
  27 #define NET_9P_TRANSPORT_H
  28
  29 enum p9_trans_status {
  30         Connected,
  31         Disconnected,
  32         Hung,
  33 };
  34
  35 struct p9_trans {
  36         enum p9_trans_status status;
  37         void *priv;
  38         int (*write) (struct p9_trans *, void *, int);
  39         int (*read) (struct p9_trans *, void *, int);
  40         void (*close) (struct p9_trans *);
  41         unsigned int (*poll)(struct p9_trans *, struct poll_table_struct *);
  42 };
  43
  44 struct p9_trans_module {
  45         struct list_head list;
  46         char *name;             /* name of transport */
  47         int maxsize;            /* max message size of transport */
  48         int def;                /* this transport should be default */
  49         struct p9_trans * (*create)(const char *devname, char *options);
  50 };
  51
  52 void v9fs_register_trans(struct p9_trans_module *m);
  53 struct p9_trans_module *v9fs_match_trans(const substring_t *name);
  54 struct p9_trans_module *v9fs_default_trans(void);
  55
  56 #endif /* NET_9P_TRANSPORT_H */