/* * 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 */ 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; struct dentry *debugfs_dir; }; /* possible values of ->proto */ enum { PROTO_TCP, PROTO_UNIX, PROTO_FD, }; /* possible values of ->cache */ /* eventually support loose, tight, time, session, default always none */ enum { CACHE_NONE, /* default */ CACHE_LOOSE, /* no consistency */ }; 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 ""