include/net/9p/client.h

   1 /*
   2  * include/net/9p/client.h
   3  *
   4  * 9P Client Definitions
   5  *
   6  *  Copyright (C) 2007 by Latchesar Ionkov <lucho@ionkov.net>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2
  10  *  as published by the Free Software Foundation.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to:
  19  *  Free Software Foundation
  20  *  51 Franklin Street, Fifth Floor
  21  *  Boston, MA  02111-1301  USA
  22  *
  23  */
  24
  25 #ifndef NET_9P_CLIENT_H
  26 #define NET_9P_CLIENT_H
  27
  28 struct p9_client {
  29         spinlock_t lock; /* protect client structure */
  30         int msize;
  31         unsigned char dotu;
  32         struct p9_trans *trans;
  33         struct p9_conn *conn;
  34
  35         struct p9_idpool *fidpool;
  36         struct list_head fidlist;
  37 };
  38
  39 struct p9_fid {
  40         struct p9_client *clnt;
  41         u32 fid;
  42         int mode;
  43         struct p9_qid qid;
  44         u32 iounit;
  45         uid_t uid;
  46         void *aux;
  47
  48         int rdir_fpos;
  49         int rdir_pos;
  50         struct p9_fcall *rdir_fcall;
  51         struct list_head flist;
  52         struct list_head dlist; /* list of all fids attached to a dentry */
  53 };
  54
  55 struct p9_client *p9_client_create(struct p9_trans *trans, int msize,
  56                                                                 int dotu);
  57 void p9_client_destroy(struct p9_client *clnt);
  58 void p9_client_disconnect(struct p9_client *clnt);
  59 struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
  60                                         char *uname, u32 n_uname, char *aname);
  61 struct p9_fid *p9_client_auth(struct p9_client *clnt, char *uname,
  62                                                 u32 n_uname, char *aname);
  63 struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
  64                                                                 int clone);
  65 int p9_client_open(struct p9_fid *fid, int mode);
  66 int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
  67                                                         char *extension);
  68 int p9_client_clunk(struct p9_fid *fid);
  69 int p9_client_remove(struct p9_fid *fid);
  70 int p9_client_read(struct p9_fid *fid, char *data, u64 offset, u32 count);
  71 int p9_client_readn(struct p9_fid *fid, char *data, u64 offset, u32 count);
  72 int p9_client_write(struct p9_fid *fid, char *data, u64 offset, u32 count);
  73 int p9_client_uread(struct p9_fid *fid, char __user *data, u64 offset,
  74                                                                 u32 count);
  75 int p9_client_uwrite(struct p9_fid *fid, const char __user *data, u64 offset,
  76                                                                 u32 count);
  77 struct p9_stat *p9_client_stat(struct p9_fid *fid);
  78 int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst);
  79 struct p9_stat *p9_client_dirread(struct p9_fid *fid, u64 offset);
  80
  81 #endif /* NET_9P_CLIENT_H */