19e82cf6aSEric Van Hensbergen /* 29e82cf6aSEric Van Hensbergen * V9FS definitions. 39e82cf6aSEric Van Hensbergen * 49e82cf6aSEric Van Hensbergen * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com> 59e82cf6aSEric Van Hensbergen * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov> 69e82cf6aSEric Van Hensbergen * 79e82cf6aSEric Van Hensbergen * This program is free software; you can redistribute it and/or modify 842e8c509SEric Van Hensbergen * it under the terms of the GNU General Public License version 2 942e8c509SEric Van Hensbergen * as published by the Free Software Foundation. 109e82cf6aSEric Van Hensbergen * 119e82cf6aSEric Van Hensbergen * This program is distributed in the hope that it will be useful, 129e82cf6aSEric Van Hensbergen * but WITHOUT ANY WARRANTY; without even the implied warranty of 139e82cf6aSEric Van Hensbergen * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 149e82cf6aSEric Van Hensbergen * GNU General Public License for more details. 159e82cf6aSEric Van Hensbergen * 169e82cf6aSEric Van Hensbergen * You should have received a copy of the GNU General Public License 179e82cf6aSEric Van Hensbergen * along with this program; if not, write to: 189e82cf6aSEric Van Hensbergen * Free Software Foundation 199e82cf6aSEric Van Hensbergen * 51 Franklin Street, Fifth Floor 209e82cf6aSEric Van Hensbergen * Boston, MA 02111-1301 USA 219e82cf6aSEric Van Hensbergen * 229e82cf6aSEric Van Hensbergen */ 239e82cf6aSEric Van Hensbergen 249e82cf6aSEric Van Hensbergen /* 259e82cf6aSEric Van Hensbergen * Session structure provides information for an opened session 269e82cf6aSEric Van Hensbergen * 279e82cf6aSEric Van Hensbergen */ 289e82cf6aSEric Van Hensbergen 299e82cf6aSEric Van Hensbergen struct v9fs_session_info { 309e82cf6aSEric Van Hensbergen /* options */ 319e82cf6aSEric Van Hensbergen unsigned int maxdata; 329e82cf6aSEric Van Hensbergen unsigned char extended; /* set to 1 if we are using UNIX extensions */ 339e82cf6aSEric Van Hensbergen unsigned char nodev; /* set to 1 if no disable device mapping */ 349e82cf6aSEric Van Hensbergen unsigned short port; /* port to connect to */ 359e82cf6aSEric Van Hensbergen unsigned short debug; /* debug level */ 369e82cf6aSEric Van Hensbergen unsigned short proto; /* protocol to use */ 379e82cf6aSEric Van Hensbergen unsigned int afid; /* authentication fid */ 389e82cf6aSEric Van Hensbergen unsigned int rfdno; /* read file descriptor number */ 399e82cf6aSEric Van Hensbergen unsigned int wfdno; /* write file descriptor number */ 40e03abc0cSEric Van Hensbergen unsigned int cache; /* cache mode */ 419e82cf6aSEric Van Hensbergen 429e82cf6aSEric Van Hensbergen char *name; /* user name to mount as */ 439e82cf6aSEric Van Hensbergen char *remotename; /* name of remote hierarchy being mounted */ 449e82cf6aSEric Van Hensbergen unsigned int uid; /* default uid/muid for legacy support */ 459e82cf6aSEric Van Hensbergen unsigned int gid; /* default gid for legacy support */ 469e82cf6aSEric Van Hensbergen 47bd238fb4SLatchesar Ionkov struct p9_client *clnt; /* 9p client */ 483cf6429aSLatchesar Ionkov struct dentry *debugfs_dir; 499e82cf6aSEric Van Hensbergen }; 509e82cf6aSEric Van Hensbergen 519e82cf6aSEric Van Hensbergen /* possible values of ->proto */ 529e82cf6aSEric Van Hensbergen enum { 539e82cf6aSEric Van Hensbergen PROTO_TCP, 549e82cf6aSEric Van Hensbergen PROTO_UNIX, 559e82cf6aSEric Van Hensbergen PROTO_FD, 56bd238fb4SLatchesar Ionkov PROTO_PCI, 579e82cf6aSEric Van Hensbergen }; 589e82cf6aSEric Van Hensbergen 59e03abc0cSEric Van Hensbergen /* possible values of ->cache */ 60e03abc0cSEric Van Hensbergen /* eventually support loose, tight, time, session, default always none */ 61e03abc0cSEric Van Hensbergen enum { 62e03abc0cSEric Van Hensbergen CACHE_NONE, /* default */ 63e03abc0cSEric Van Hensbergen CACHE_LOOSE, /* no consistency */ 64e03abc0cSEric Van Hensbergen }; 65e03abc0cSEric Van Hensbergen 663cf6429aSLatchesar Ionkov extern struct dentry *v9fs_debugfs_root; 673cf6429aSLatchesar Ionkov 68bd238fb4SLatchesar Ionkov struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *, 69bd238fb4SLatchesar Ionkov char *); 709e82cf6aSEric Van Hensbergen void v9fs_session_close(struct v9fs_session_info *v9ses); 71322b329aSEric Van Hensbergen void v9fs_session_cancel(struct v9fs_session_info *v9ses); 729e82cf6aSEric Van Hensbergen 739e82cf6aSEric Van Hensbergen #define V9FS_MAGIC 0x01021997 749e82cf6aSEric Van Hensbergen 759e82cf6aSEric Van Hensbergen /* other default globals */ 769e82cf6aSEric Van Hensbergen #define V9FS_PORT 564 779e82cf6aSEric Van Hensbergen #define V9FS_DEFUSER "nobody" 789e82cf6aSEric Van Hensbergen #define V9FS_DEFANAME "" 799e82cf6aSEric Van Hensbergen 80bd238fb4SLatchesar Ionkov static inline struct v9fs_session_info *v9fs_inode2v9ses(struct inode *inode) 81bd238fb4SLatchesar Ionkov { 82bd238fb4SLatchesar Ionkov return (inode->i_sb->s_fs_info); 83bd238fb4SLatchesar Ionkov } 84