include/net/9p/client.h

   1 /*
   2  * include/net/9p/client.h
   3  *
   4  * 9P Client Definitions
   5  *
   6  *  Copyright (C) 2008 by Eric Van Hensbergen <ericvh@gmail.com>
   7  *  Copyright (C) 2007 by Latchesar Ionkov <lucho@ionkov.net>
   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_CLIENT_H
  27 #define NET_9P_CLIENT_H
  28
  29 struct p9_client {
  30         spinlock_t lock; /* protect client structure */
  31         int msize;
  32         unsigned char dotu;
  33         struct p9_trans_module *trans_mod;
  34         struct p9_trans *trans;
  35         struct p9_conn *conn;
  36
  37         struct p9_idpool *fidpool;
  38         struct list_head fidlist;
  39 };
  40
  41 struct p9_fid {
  42         struct p9_client *clnt;
  43         u32 fid;
  44         int mode;
  45         struct p9_qid qid;
  46         u32 iounit;
  47         uid_t uid;
  48         void *aux;
  49
  50         int rdir_fpos;
  51         int rdir_pos;
  52         struct p9_fcall *rdir_fcall;
  53         struct list_head flist;
  54         struct list_head dlist; /* list of all fids attached to a dentry */
  55 };
  56
  57 struct p9_client *p9_client_create(const char *dev_name, char *options);
  58 void p9_client_destroy(struct p9_client *clnt);
  59 void p9_client_disconnect(struct p9_client *clnt);
  60 struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
  61                                         char *uname, u32 n_uname, char *aname);
  62 struct p9_fid *p9_client_auth(struct p9_client *clnt, char *uname,
  63                                                 u32 n_uname, char *aname);
  64 struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
  65                                                                 int clone);
  66 int p9_client_open(struct p9_fid *fid, int mode);
  67 int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
  68                                                         char *extension);
  69 int p9_client_clunk(struct p9_fid *fid);
  70 int p9_client_remove(struct p9_fid *fid);
  71 int p9_client_read(struct p9_fid *fid, char *data, u64 offset, u32 count);
  72 int p9_client_readn(struct p9_fid *fid, char *data, u64 offset, u32 count);
  73 int p9_client_write(struct p9_fid *fid, char *data, u64 offset, u32 count);
  74 int p9_client_uread(struct p9_fid *fid, char __user *data, u64 offset,
  75                                                                 u32 count);
  76 int p9_client_uwrite(struct p9_fid *fid, const char __user *data, u64 offset,
  77                                                                 u32 count);
  78 struct p9_stat *p9_client_stat(struct p9_fid *fid);
  79 int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst);
  80 struct p9_stat *p9_client_dirread(struct p9_fid *fid, u64 offset);
  81
  82 #endif /* NET_9P_CLIENT_H */