projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 9e82cf6a EVH |
1 | /* |
| 2 | * V9FS definitions. | |
| 3 | * | |
| 4 | * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com> | |
| 5 | * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to: | |
| 19 | * Free Software Foundation | |
| 20 | * 51 Franklin Street, Fifth Floor | |
| 21 | * Boston, MA 02111-1301 USA | |
| 22 | * | |
| 23 | */ | |
| 24 | ||
| 25 | /* | |
| 26 | * Idpool structure provides lock and id management | |
| 27 | * | |
| 28 | */ | |
| 29 | ||
| 30 | struct v9fs_idpool { | |
| 31 | struct semaphore lock; | |
| 32 | struct idr pool; | |
| 33 | }; | |
| 34 | ||
| 35 | /* | |
| 36 | * Session structure provides information for an opened session | |
| 37 | * | |
| 38 | */ | |
| 39 | ||
| 40 | struct v9fs_session_info { | |
| 41 | /* options */ | |
| 42 | unsigned int maxdata; | |
| 43 | unsigned char extended; /* set to 1 if we are using UNIX extensions */ | |
| 44 | unsigned char nodev; /* set to 1 if no disable device mapping */ | |
| 45 | unsigned short port; /* port to connect to */ | |
| 46 | unsigned short debug; /* debug level */ | |
| 47 | unsigned short proto; /* protocol to use */ | |
| 48 | unsigned int afid; /* authentication fid */ | |
| 49 | unsigned int rfdno; /* read file descriptor number */ | |
| 50 | unsigned int wfdno; /* write file descriptor number */ | |
| 51 | ||
| 52 | ||
| 53 | char *name; /* user name to mount as */ | |
| 54 | char *remotename; /* name of remote hierarchy being mounted */ | |
| 55 | unsigned int uid; /* default uid/muid for legacy support */ | |
| 56 | unsigned int gid; /* default gid for legacy support */ | |
| 57 | ||
| 58 | /* book keeping */ | |
| 59 | struct v9fs_idpool fidpool; /* The FID pool for file descriptors */ | |
| 9e82cf6a | 60 | |
| 9e82cf6a | 61 | struct v9fs_transport *transport; |
| 3cf6429a | 62 | struct v9fs_mux_data *mux; |
| 9e82cf6a EVH |
63 | |
| 64 | int inprogress; /* session in progress => true */ | |
| 65 | int shutdown; /* session shutting down. no more attaches. */ | |
| 66 | unsigned char session_hung; | |
| 3cf6429a | 67 | struct dentry *debugfs_dir; |
| 9e82cf6a EVH |
68 | }; |
| 69 | ||
| 70 | /* possible values of ->proto */ | |
| 71 | enum { | |
| 72 | PROTO_TCP, | |
| 73 | PROTO_UNIX, | |
| 74 | PROTO_FD, | |
| 75 | }; | |
| 76 | ||
| 3cf6429a LI |
77 | extern struct dentry *v9fs_debugfs_root; |
| 78 | ||
| 9e82cf6a EVH |
79 | int v9fs_session_init(struct v9fs_session_info *, const char *, char *); |
| 80 | struct v9fs_session_info *v9fs_inode2v9ses(struct inode *); | |
| 81 | void v9fs_session_close(struct v9fs_session_info *v9ses); | |
| 82 | int v9fs_get_idpool(struct v9fs_idpool *p); | |
| 83 | void v9fs_put_idpool(int id, struct v9fs_idpool *p); | |
| 3cf6429a | 84 | int v9fs_check_idpool(int id, struct v9fs_idpool *p); |
| 322b329a | 85 | void v9fs_session_cancel(struct v9fs_session_info *v9ses); |
| 9e82cf6a EVH |
86 | |
| 87 | #define V9FS_MAGIC 0x01021997 | |
| 88 | ||
| 89 | /* other default globals */ | |
| 90 | #define V9FS_PORT 564 | |
| 91 | #define V9FS_DEFUSER "nobody" | |
| 92 | #define V9FS_DEFANAME "" | |
| 93 | ||
| 94 | /* inital pool sizes for fids and tags */ | |
| 95 | #define V9FS_START_FIDS 8192 | |
| 96 | #define V9FS_START_TIDS 256 |