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-rw-r--r--fs/9p/9p.h375
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diff --git a/fs/9p/9p.h b/fs/9p/9p.h
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--- a/fs/9p/9p.h
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-/*
- * linux/fs/9p/9p.h
- *
- * 9P protocol definitions.
- *
- * Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net>
- * 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
- *
- */
-
-/* Message Types */
-enum {
- TVERSION = 100,
- RVERSION,
- TAUTH = 102,
- RAUTH,
- TATTACH = 104,
- RATTACH,
- TERROR = 106,
- RERROR,
- TFLUSH = 108,
- RFLUSH,
- TWALK = 110,
- RWALK,
- TOPEN = 112,
- ROPEN,
- TCREATE = 114,
- RCREATE,
- TREAD = 116,
- RREAD,
- TWRITE = 118,
- RWRITE,
- TCLUNK = 120,
- RCLUNK,
- TREMOVE = 122,
- RREMOVE,
- TSTAT = 124,
- RSTAT,
- TWSTAT = 126,
- RWSTAT,
-};
-
-/* modes */
-enum {
- V9FS_OREAD = 0x00,
- V9FS_OWRITE = 0x01,
- V9FS_ORDWR = 0x02,
- V9FS_OEXEC = 0x03,
- V9FS_OEXCL = 0x04,
- V9FS_OTRUNC = 0x10,
- V9FS_OREXEC = 0x20,
- V9FS_ORCLOSE = 0x40,
- V9FS_OAPPEND = 0x80,
-};
-
-/* permissions */
-enum {
- V9FS_DMDIR = 0x80000000,
- V9FS_DMAPPEND = 0x40000000,
- V9FS_DMEXCL = 0x20000000,
- V9FS_DMMOUNT = 0x10000000,
- V9FS_DMAUTH = 0x08000000,
- V9FS_DMTMP = 0x04000000,
- V9FS_DMSYMLINK = 0x02000000,
- V9FS_DMLINK = 0x01000000,
- /* 9P2000.u extensions */
- V9FS_DMDEVICE = 0x00800000,
- V9FS_DMNAMEDPIPE = 0x00200000,
- V9FS_DMSOCKET = 0x00100000,
- V9FS_DMSETUID = 0x00080000,
- V9FS_DMSETGID = 0x00040000,
-};
-
-/* qid.types */
-enum {
- V9FS_QTDIR = 0x80,
- V9FS_QTAPPEND = 0x40,
- V9FS_QTEXCL = 0x20,
- V9FS_QTMOUNT = 0x10,
- V9FS_QTAUTH = 0x08,
- V9FS_QTTMP = 0x04,
- V9FS_QTSYMLINK = 0x02,
- V9FS_QTLINK = 0x01,
- V9FS_QTFILE = 0x00,
-};
-
-#define V9FS_NOTAG (u16)(~0)
-#define V9FS_NOFID (u32)(~0)
-#define V9FS_MAXWELEM 16
-
-/* ample room for Twrite/Rread header (iounit) */
-#define V9FS_IOHDRSZ 24
-
-struct v9fs_str {
- u16 len;
- char *str;
-};
-
-/* qids are the unique ID for a file (like an inode */
-struct v9fs_qid {
- u8 type;
- u32 version;
- u64 path;
-};
-
-/* Plan 9 file metadata (stat) structure */
-struct v9fs_stat {
- u16 size;
- u16 type;
- u32 dev;
- struct v9fs_qid qid;
- u32 mode;
- u32 atime;
- u32 mtime;
- u64 length;
- struct v9fs_str name;
- struct v9fs_str uid;
- struct v9fs_str gid;
- struct v9fs_str muid;
- struct v9fs_str extension; /* 9p2000.u extensions */
- u32 n_uid; /* 9p2000.u extensions */
- u32 n_gid; /* 9p2000.u extensions */
- u32 n_muid; /* 9p2000.u extensions */
-};
-
-/* file metadata (stat) structure used to create Twstat message
- The is similar to v9fs_stat, but the strings don't point to
- the same memory block and should be freed separately
-*/
-struct v9fs_wstat {
- u16 size;
- u16 type;
- u32 dev;
- struct v9fs_qid qid;
- u32 mode;
- u32 atime;
- u32 mtime;
- u64 length;
- char *name;
- char *uid;
- char *gid;
- char *muid;
- char *extension; /* 9p2000.u extensions */
- u32 n_uid; /* 9p2000.u extensions */
- u32 n_gid; /* 9p2000.u extensions */
- u32 n_muid; /* 9p2000.u extensions */
-};
-
-/* Structures for Protocol Operations */
-
-struct Tversion {
- u32 msize;
- struct v9fs_str version;
-};
-
-struct Rversion {
- u32 msize;
- struct v9fs_str version;
-};
-
-struct Tauth {
- u32 afid;
- struct v9fs_str uname;
- struct v9fs_str aname;
-};
-
-struct Rauth {
- struct v9fs_qid qid;
-};
-
-struct Rerror {
- struct v9fs_str error;
- u32 errno; /* 9p2000.u extension */
-};
-
-struct Tflush {
- u16 oldtag;
-};
-
-struct Rflush {
-};
-
-struct Tattach {
- u32 fid;
- u32 afid;
- struct v9fs_str uname;
- struct v9fs_str aname;
-};
-
-struct Rattach {
- struct v9fs_qid qid;
-};
-
-struct Twalk {
- u32 fid;
- u32 newfid;
- u16 nwname;
- struct v9fs_str wnames[16];
-};
-
-struct Rwalk {
- u16 nwqid;
- struct v9fs_qid wqids[16];
-};
-
-struct Topen {
- u32 fid;
- u8 mode;
-};
-
-struct Ropen {
- struct v9fs_qid qid;
- u32 iounit;
-};
-
-struct Tcreate {
- u32 fid;
- struct v9fs_str name;
- u32 perm;
- u8 mode;
- struct v9fs_str extension;
-};
-
-struct Rcreate {
- struct v9fs_qid qid;
- u32 iounit;
-};
-
-struct Tread {
- u32 fid;
- u64 offset;
- u32 count;
-};
-
-struct Rread {
- u32 count;
- u8 *data;
-};
-
-struct Twrite {
- u32 fid;
- u64 offset;
- u32 count;
- u8 *data;
-};
-
-struct Rwrite {
- u32 count;
-};
-
-struct Tclunk {
- u32 fid;
-};
-
-struct Rclunk {
-};
-
-struct Tremove {
- u32 fid;
-};
-
-struct Rremove {
-};
-
-struct Tstat {
- u32 fid;
-};
-
-struct Rstat {
- struct v9fs_stat stat;
-};
-
-struct Twstat {
- u32 fid;
- struct v9fs_stat stat;
-};
-
-struct Rwstat {
-};
-
-/*
- * fcall is the primary packet structure
- *
- */
-
-struct v9fs_fcall {
- u32 size;
- u8 id;
- u16 tag;
- void *sdata;
-
- union {
- struct Tversion tversion;
- struct Rversion rversion;
- struct Tauth tauth;
- struct Rauth rauth;
- struct Rerror rerror;
- struct Tflush tflush;
- struct Rflush rflush;
- struct Tattach tattach;
- struct Rattach rattach;
- struct Twalk twalk;
- struct Rwalk rwalk;
- struct Topen topen;
- struct Ropen ropen;
- struct Tcreate tcreate;
- struct Rcreate rcreate;
- struct Tread tread;
- struct Rread rread;
- struct Twrite twrite;
- struct Rwrite rwrite;
- struct Tclunk tclunk;
- struct Rclunk rclunk;
- struct Tremove tremove;
- struct Rremove rremove;
- struct Tstat tstat;
- struct Rstat rstat;
- struct Twstat twstat;
- struct Rwstat rwstat;
- } params;
-};
-
-#define PRINT_FCALL_ERROR(s, fcall) dprintk(DEBUG_ERROR, "%s: %.*s\n", s, \
- fcall?fcall->params.rerror.error.len:0, \
- fcall?fcall->params.rerror.error.str:"");
-
-int v9fs_t_version(struct v9fs_session_info *v9ses, u32 msize,
- char *version, struct v9fs_fcall **rcall);
-
-int v9fs_t_attach(struct v9fs_session_info *v9ses, char *uname, char *aname,
- u32 fid, u32 afid, struct v9fs_fcall **rcall);
-
-int v9fs_t_clunk(struct v9fs_session_info *v9ses, u32 fid);
-
-int v9fs_t_stat(struct v9fs_session_info *v9ses, u32 fid,
- struct v9fs_fcall **rcall);
-
-int v9fs_t_wstat(struct v9fs_session_info *v9ses, u32 fid,
- struct v9fs_wstat *wstat, struct v9fs_fcall **rcall);
-
-int v9fs_t_walk(struct v9fs_session_info *v9ses, u32 fid, u32 newfid,
- char *name, struct v9fs_fcall **rcall);
-
-int v9fs_t_open(struct v9fs_session_info *v9ses, u32 fid, u8 mode,
- struct v9fs_fcall **rcall);
-
-int v9fs_t_remove(struct v9fs_session_info *v9ses, u32 fid,
- struct v9fs_fcall **rcall);
-
-int v9fs_t_create(struct v9fs_session_info *v9ses, u32 fid, char *name,
- u32 perm, u8 mode, char *extension, struct v9fs_fcall **rcall);
-
-int v9fs_t_read(struct v9fs_session_info *v9ses, u32 fid,
- u64 offset, u32 count, struct v9fs_fcall **rcall);
-
-int v9fs_t_write(struct v9fs_session_info *v9ses, u32 fid, u64 offset,
- u32 count, const char __user * data,
- struct v9fs_fcall **rcall);
-int v9fs_printfcall(char *, int, struct v9fs_fcall *, int);
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