This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / fs / 9p / v9fs.h

diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
new file mode 100644 (file)
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+++ b/fs/9p/v9fs.h
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+/*
+ * V9FS definitions.
+ *
+ *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ *  Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to:
+ *  Free Software Foundation
+ *  51 Franklin Street, Fifth Floor
+ *  Boston, MA  02111-1301  USA
+ *
+ */
+
+/*
+  * Idpool structure provides lock and id management
+  *
+  */
+
+struct v9fs_idpool {
+       struct semaphore lock;
+       struct idr pool;
+};
+
+/*
+  * Session structure provides information for an opened session
+  *
+  */
+
+struct v9fs_session_info {
+       /* options */
+       unsigned int maxdata;
+       unsigned char extended; /* set to 1 if we are using UNIX extensions */
+       unsigned char nodev;    /* set to 1 if no disable device mapping */
+       unsigned short port;    /* port to connect to */
+       unsigned short debug;   /* debug level */
+       unsigned short proto;   /* protocol to use */
+       unsigned int afid;      /* authentication fid */
+       unsigned int rfdno;     /* read file descriptor number */
+       unsigned int wfdno;     /* write file descriptor number */
+
+
+       char *name;             /* user name to mount as */
+       char *remotename;       /* name of remote hierarchy being mounted */
+       unsigned int uid;       /* default uid/muid for legacy support */
+       unsigned int gid;       /* default gid for legacy support */
+
+       /* book keeping */
+       struct v9fs_idpool fidpool;     /* The FID pool for file descriptors */
+
+       struct v9fs_transport *transport;
+       struct v9fs_mux_data *mux;
+
+       int inprogress;         /* session in progress => true */
+       int shutdown;           /* session shutting down. no more attaches. */
+       unsigned char session_hung;
+       struct dentry *debugfs_dir;
+};
+
+/* possible values of ->proto */
+enum {
+       PROTO_TCP,
+       PROTO_UNIX,
+       PROTO_FD,
+};
+
+extern struct dentry *v9fs_debugfs_root;
+
+int v9fs_session_init(struct v9fs_session_info *, const char *, char *);
+struct v9fs_session_info *v9fs_inode2v9ses(struct inode *);
+void v9fs_session_close(struct v9fs_session_info *v9ses);
+int v9fs_get_idpool(struct v9fs_idpool *p);
+void v9fs_put_idpool(int id, struct v9fs_idpool *p);
+int v9fs_check_idpool(int id, struct v9fs_idpool *p);
+void v9fs_session_cancel(struct v9fs_session_info *v9ses);
+
+#define V9FS_MAGIC 0x01021997
+
+/* other default globals */
+#define V9FS_PORT              564
+#define V9FS_DEFUSER   "nobody"
+#define V9FS_DEFANAME  ""
+