X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2F9p%2Fv9fs.h;h=7d3a1018db5215ec9a410b2d789b1ea5d3e8aab5;hb=1df5a8d004f64b1aa3fb93e0556886ba00ebc979;hp=820bf5ca35d88b8dd2c03ac619b88b16d8ac45c2;hpb=4935361766cc73949fe032cd157d314f288922ba;p=linux-2.6

diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index 820bf5ca35..7d3a1018db 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -1,7 +1,7 @@
 /*
  * V9FS definitions.
  *
- *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ *  Copyright (C) 2004-2008 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
@@ -21,16 +21,6 @@
  *
  */
 
-/*
-  * Idpool structure provides lock and id management
-  *
-  */
-
-struct v9fs_idpool {
-	struct semaphore lock;
-	struct idr pool;
-};
-
 /*
   * Session structure provides information for an opened session
   *
@@ -38,39 +28,30 @@ struct v9fs_idpool {
 
 struct v9fs_session_info {
 	/* options */
-	unsigned int maxdata;
-	unsigned char extended;	/* set to 1 if we are using UNIX extensions */
+	unsigned char flags;	/* session flags */
 	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 */
 	unsigned int cache;	/* cache mode */
 
-	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;
+	char *options;		/* copy of mount options */
+	char *uname;		/* user name to mount as */
+	char *aname;		/* name of remote hierarchy being mounted */
+	unsigned int maxdata;	/* max data for client interface */
+	unsigned int dfltuid;	/* default uid/muid for legacy support */
+	unsigned int dfltgid;	/* default gid for legacy support */
+	u32 uid;		/* if ACCESS_SINGLE, the uid that has access */
+	struct p9_client *clnt;	/* 9p client */
 	struct dentry *debugfs_dir;
 };
 
-/* possible values of ->proto */
+/* session flags */
 enum {
-	PROTO_TCP,
-	PROTO_UNIX,
-	PROTO_FD,
+	V9FS_EXTENDED		= 0x01,	/* 9P2000.u */
+	V9FS_ACCESS_MASK	= 0x06,	/* access mask */
+	V9FS_ACCESS_SINGLE	= 0x02,	/* only one user can access the files */
+	V9FS_ACCESS_USER	= 0x04,	/* attache per user */
+	V9FS_ACCESS_ANY		= 0x06,	/* use the same attach for all users */
 };
 
 /* possible values of ->cache */
@@ -82,18 +63,26 @@ enum {
 
 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 *);
+struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *,
+									char *);
 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_PORT	564
 #define V9FS_DEFUSER	"nobody"
 #define V9FS_DEFANAME	""
+#define V9FS_DEFUID	(-2)
+#define V9FS_DEFGID	(-2)
+
+static inline struct v9fs_session_info *v9fs_inode2v9ses(struct inode *inode)
+{
+	return (inode->i_sb->s_fs_info);
+}
 
+static inline int v9fs_extended(struct v9fs_session_info *v9ses)
+{
+	return v9ses->flags & V9FS_EXTENDED;
+}