4 * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
5 * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to:
18 * Free Software Foundation
19 * 51 Franklin Street, Fifth Floor
20 * Boston, MA 02111-1301 USA
25 * Idpool structure provides lock and id management
30 struct semaphore lock;
35 * Session structure provides information for an opened session
39 struct v9fs_session_info {
42 unsigned char extended; /* set to 1 if we are using UNIX extensions */
43 unsigned char nodev; /* set to 1 if no disable device mapping */
44 unsigned short port; /* port to connect to */
45 unsigned short debug; /* debug level */
46 unsigned short proto; /* protocol to use */
47 unsigned int afid; /* authentication fid */
48 unsigned int rfdno; /* read file descriptor number */
49 unsigned int wfdno; /* write file descriptor number */
50 unsigned int cache; /* cache mode */
52 char *name; /* user name to mount as */
53 char *remotename; /* name of remote hierarchy being mounted */
54 unsigned int uid; /* default uid/muid for legacy support */
55 unsigned int gid; /* default gid for legacy support */
58 struct v9fs_idpool fidpool; /* The FID pool for file descriptors */
60 struct v9fs_transport *transport;
61 struct v9fs_mux_data *mux;
63 int inprogress; /* session in progress => true */
64 int shutdown; /* session shutting down. no more attaches. */
65 unsigned char session_hung;
66 struct dentry *debugfs_dir;
69 /* possible values of ->proto */
76 /* possible values of ->cache */
77 /* eventually support loose, tight, time, session, default always none */
79 CACHE_NONE, /* default */
80 CACHE_LOOSE, /* no consistency */
83 extern struct dentry *v9fs_debugfs_root;
85 int v9fs_session_init(struct v9fs_session_info *, const char *, char *);
86 struct v9fs_session_info *v9fs_inode2v9ses(struct inode *);
87 void v9fs_session_close(struct v9fs_session_info *v9ses);
88 int v9fs_get_idpool(struct v9fs_idpool *p);
89 void v9fs_put_idpool(int id, struct v9fs_idpool *p);
90 int v9fs_check_idpool(int id, struct v9fs_idpool *p);
91 void v9fs_session_cancel(struct v9fs_session_info *v9ses);
93 #define V9FS_MAGIC 0x01021997
95 /* other default globals */
97 #define V9FS_DEFUSER "nobody"
98 #define V9FS_DEFANAME ""