diff options
Diffstat (limited to 'include/net/9p/9p.h')
| -rw-r--r-- | include/net/9p/9p.h | 682 |
1 files changed, 420 insertions, 262 deletions
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 585eb449699..27dfe85772b 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -27,44 +27,147 @@ #ifndef NET_9P_H #define NET_9P_H -#ifdef CONFIG_NET_9P_DEBUG +/** + * enum p9_debug_flags - bits for mount time debug parameter + * @P9_DEBUG_ERROR: more verbose error messages including original error string + * @P9_DEBUG_9P: 9P protocol tracing + * @P9_DEBUG_VFS: VFS API tracing + * @P9_DEBUG_CONV: protocol conversion tracing + * @P9_DEBUG_MUX: trace management of concurrent transactions + * @P9_DEBUG_TRANS: transport tracing + * @P9_DEBUG_SLABS: memory management tracing + * @P9_DEBUG_FCALL: verbose dump of protocol messages + * @P9_DEBUG_FID: fid allocation/deallocation tracking + * @P9_DEBUG_PKT: packet marshalling/unmarshalling + * @P9_DEBUG_FSC: FS-cache tracing + * @P9_DEBUG_VPKT: Verbose packet debugging (full packet dump) + * + * These flags are passed at mount time to turn on various levels of + * verbosity and tracing which will be output to the system logs. + */ -#define P9_DEBUG_ERROR (1<<0) -#define P9_DEBUG_9P (1<<2) -#define P9_DEBUG_VFS (1<<3) -#define P9_DEBUG_CONV (1<<4) -#define P9_DEBUG_MUX (1<<5) -#define P9_DEBUG_TRANS (1<<6) -#define P9_DEBUG_SLABS (1<<7) -#define P9_DEBUG_FCALL (1<<8) +enum p9_debug_flags { + P9_DEBUG_ERROR = (1<<0), + P9_DEBUG_9P = (1<<2), + P9_DEBUG_VFS = (1<<3), + P9_DEBUG_CONV = (1<<4), + P9_DEBUG_MUX = (1<<5), + P9_DEBUG_TRANS = (1<<6), + P9_DEBUG_SLABS = (1<<7), + P9_DEBUG_FCALL = (1<<8), + P9_DEBUG_FID = (1<<9), + P9_DEBUG_PKT = (1<<10), + P9_DEBUG_FSC = (1<<11), + P9_DEBUG_VPKT = (1<<12), +}; +#ifdef CONFIG_NET_9P_DEBUG extern unsigned int p9_debug_level; - -#define P9_DPRINTK(level, format, arg...) \ -do { \ - if ((p9_debug_level & level) == level) \ - printk(KERN_NOTICE "-- %s (%d): " \ - format , __FUNCTION__, task_pid_nr(current) , ## arg); \ -} while (0) - -#define PRINT_FCALL_ERROR(s, fcall) P9_DPRINTK(P9_DEBUG_ERROR, \ - "%s: %.*s\n", s, fcall?fcall->params.rerror.error.len:0, \ - fcall?fcall->params.rerror.error.str:""); - +__printf(3, 4) +void _p9_debug(enum p9_debug_flags level, const char *func, + const char *fmt, ...); +#define p9_debug(level, fmt, ...) \ + _p9_debug(level, __func__, fmt, ##__VA_ARGS__) #else -#define P9_DPRINTK(level, format, arg...) do { } while (0) -#define PRINT_FCALL_ERROR(s, fcall) do { } while (0) +#define p9_debug(level, fmt, ...) \ + no_printk(fmt, ##__VA_ARGS__) #endif -#define P9_EPRINTK(level, format, arg...) \ -do { \ - printk(level "9p: %s (%d): " \ - format , __FUNCTION__, task_pid_nr(current), ## arg); \ -} while (0) - +/** + * enum p9_msg_t - 9P message types + * @P9_TLERROR: not used + * @P9_RLERROR: response for any failed request for 9P2000.L + * @P9_TSTATFS: file system status request + * @P9_RSTATFS: file system status response + * @P9_TSYMLINK: make symlink request + * @P9_RSYMLINK: make symlink response + * @P9_TMKNOD: create a special file object request + * @P9_RMKNOD: create a special file object response + * @P9_TLCREATE: prepare a handle for I/O on an new file for 9P2000.L + * @P9_RLCREATE: response with file access information for 9P2000.L + * @P9_TRENAME: rename request + * @P9_RRENAME: rename response + * @P9_TMKDIR: create a directory request + * @P9_RMKDIR: create a directory response + * @P9_TVERSION: version handshake request + * @P9_RVERSION: version handshake response + * @P9_TAUTH: request to establish authentication channel + * @P9_RAUTH: response with authentication information + * @P9_TATTACH: establish user access to file service + * @P9_RATTACH: response with top level handle to file hierarchy + * @P9_TERROR: not used + * @P9_RERROR: response for any failed request + * @P9_TFLUSH: request to abort a previous request + * @P9_RFLUSH: response when previous request has been cancelled + * @P9_TWALK: descend a directory hierarchy + * @P9_RWALK: response with new handle for position within hierarchy + * @P9_TOPEN: prepare a handle for I/O on an existing file + * @P9_ROPEN: response with file access information + * @P9_TCREATE: prepare a handle for I/O on a new file + * @P9_RCREATE: response with file access information + * @P9_TREAD: request to transfer data from a file or directory + * @P9_RREAD: response with data requested + * @P9_TWRITE: reuqest to transfer data to a file + * @P9_RWRITE: response with out much data was transferred to file + * @P9_TCLUNK: forget about a handle to an entity within the file system + * @P9_RCLUNK: response when server has forgotten about the handle + * @P9_TREMOVE: request to remove an entity from the hierarchy + * @P9_RREMOVE: response when server has removed the entity + * @P9_TSTAT: request file entity attributes + * @P9_RSTAT: response with file entity attributes + * @P9_TWSTAT: request to update file entity attributes + * @P9_RWSTAT: response when file entity attributes are updated + * + * There are 14 basic operations in 9P2000, paired as + * requests and responses. The one special case is ERROR + * as there is no @P9_TERROR request for clients to transmit to + * the server, but the server may respond to any other request + * with an @P9_RERROR. + * + * See Also: http://plan9.bell-labs.com/sys/man/5/INDEX.html + */ -/* Message Types */ -enum { +enum p9_msg_t { + P9_TLERROR = 6, + P9_RLERROR, + P9_TSTATFS = 8, + P9_RSTATFS, + P9_TLOPEN = 12, + P9_RLOPEN, + P9_TLCREATE = 14, + P9_RLCREATE, + P9_TSYMLINK = 16, + P9_RSYMLINK, + P9_TMKNOD = 18, + P9_RMKNOD, + P9_TRENAME = 20, + P9_RRENAME, + P9_TREADLINK = 22, + P9_RREADLINK, + P9_TGETATTR = 24, + P9_RGETATTR, + P9_TSETATTR = 26, + P9_RSETATTR, + P9_TXATTRWALK = 30, + P9_RXATTRWALK, + P9_TXATTRCREATE = 32, + P9_RXATTRCREATE, + P9_TREADDIR = 40, + P9_RREADDIR, + P9_TFSYNC = 50, + P9_RFSYNC, + P9_TLOCK = 52, + P9_RLOCK, + P9_TGETLOCK = 54, + P9_RGETLOCK, + P9_TLINK = 70, + P9_RLINK, + P9_TMKDIR = 72, + P9_RMKDIR, + P9_TRENAMEAT = 74, + P9_RRENAMEAT, + P9_TUNLINKAT = 76, + P9_RUNLINKAT, P9_TVERSION = 100, P9_RVERSION, P9_TAUTH = 102, @@ -95,30 +198,71 @@ enum { P9_RWSTAT, }; -/* open modes */ -enum { +/** + * enum p9_open_mode_t - 9P open modes + * @P9_OREAD: open file for reading only + * @P9_OWRITE: open file for writing only + * @P9_ORDWR: open file for reading or writing + * @P9_OEXEC: open file for execution + * @P9_OTRUNC: truncate file to zero-length before opening it + * @P9_OREXEC: close the file when an exec(2) system call is made + * @P9_ORCLOSE: remove the file when the file is closed + * @P9_OAPPEND: open the file and seek to the end + * @P9_OEXCL: only create a file, do not open it + * + * 9P open modes differ slightly from Posix standard modes. + * In particular, there are extra modes which specify different + * semantic behaviors than may be available on standard Posix + * systems. For example, @P9_OREXEC and @P9_ORCLOSE are modes that + * most likely will not be issued from the Linux VFS client, but may + * be supported by servers. + * + * See Also: http://plan9.bell-labs.com/magic/man2html/2/open + */ + +enum p9_open_mode_t { P9_OREAD = 0x00, P9_OWRITE = 0x01, P9_ORDWR = 0x02, P9_OEXEC = 0x03, - P9_OEXCL = 0x04, P9_OTRUNC = 0x10, P9_OREXEC = 0x20, P9_ORCLOSE = 0x40, P9_OAPPEND = 0x80, -}; - -/* permissions */ -enum { + P9_OEXCL = 0x1000, +}; + +/** + * enum p9_perm_t - 9P permissions + * @P9_DMDIR: mode bit for directories + * @P9_DMAPPEND: mode bit for is append-only + * @P9_DMEXCL: mode bit for excluse use (only one open handle allowed) + * @P9_DMMOUNT: mode bit for mount points + * @P9_DMAUTH: mode bit for authentication file + * @P9_DMTMP: mode bit for non-backed-up files + * @P9_DMSYMLINK: mode bit for symbolic links (9P2000.u) + * @P9_DMLINK: mode bit for hard-link (9P2000.u) + * @P9_DMDEVICE: mode bit for device files (9P2000.u) + * @P9_DMNAMEDPIPE: mode bit for named pipe (9P2000.u) + * @P9_DMSOCKET: mode bit for socket (9P2000.u) + * @P9_DMSETUID: mode bit for setuid (9P2000.u) + * @P9_DMSETGID: mode bit for setgid (9P2000.u) + * @P9_DMSETVTX: mode bit for sticky bit (9P2000.u) + * + * 9P permissions differ slightly from Posix standard modes. + * + * See Also: http://plan9.bell-labs.com/magic/man2html/2/stat + */ +enum p9_perm_t { P9_DMDIR = 0x80000000, P9_DMAPPEND = 0x40000000, P9_DMEXCL = 0x20000000, P9_DMMOUNT = 0x10000000, P9_DMAUTH = 0x08000000, P9_DMTMP = 0x04000000, +/* 9P2000.u extensions */ P9_DMSYMLINK = 0x02000000, P9_DMLINK = 0x01000000, - /* 9P2000.u extensions */ P9_DMDEVICE = 0x00800000, P9_DMNAMEDPIPE = 0x00200000, P9_DMSOCKET = 0x00100000, @@ -127,8 +271,55 @@ enum { P9_DMSETVTX = 0x00010000, }; -/* qid.types */ -enum { +/* 9p2000.L open flags */ +#define P9_DOTL_RDONLY 00000000 +#define P9_DOTL_WRONLY 00000001 +#define P9_DOTL_RDWR 00000002 +#define P9_DOTL_NOACCESS 00000003 +#define P9_DOTL_CREATE 00000100 +#define P9_DOTL_EXCL 00000200 +#define P9_DOTL_NOCTTY 00000400 +#define P9_DOTL_TRUNC 00001000 +#define P9_DOTL_APPEND 00002000 +#define P9_DOTL_NONBLOCK 00004000 +#define P9_DOTL_DSYNC 00010000 +#define P9_DOTL_FASYNC 00020000 +#define P9_DOTL_DIRECT 00040000 +#define P9_DOTL_LARGEFILE 00100000 +#define P9_DOTL_DIRECTORY 00200000 +#define P9_DOTL_NOFOLLOW 00400000 +#define P9_DOTL_NOATIME 01000000 +#define P9_DOTL_CLOEXEC 02000000 +#define P9_DOTL_SYNC 04000000 + +/* 9p2000.L at flags */ +#define P9_DOTL_AT_REMOVEDIR 0x200 + +/* 9p2000.L lock type */ +#define P9_LOCK_TYPE_RDLCK 0 +#define P9_LOCK_TYPE_WRLCK 1 +#define P9_LOCK_TYPE_UNLCK 2 + +/** + * enum p9_qid_t - QID types + * @P9_QTDIR: directory + * @P9_QTAPPEND: append-only + * @P9_QTEXCL: excluse use (only one open handle allowed) + * @P9_QTMOUNT: mount points + * @P9_QTAUTH: authentication file + * @P9_QTTMP: non-backed-up files + * @P9_QTSYMLINK: symbolic links (9P2000.u) + * @P9_QTLINK: hard-link (9P2000.u) + * @P9_QTFILE: normal files + * + * QID types are a subset of permissions - they are primarily + * used to differentiate semantics for a file system entity via + * a jump-table. Their value is also the most significant 16 bits + * of the permission_t + * + * See Also: http://plan9.bell-labs.com/magic/man2html/2/stat + */ +enum p9_qid_t { P9_QTDIR = 0x80, P9_QTAPPEND = 0x40, P9_QTEXCL = 0x20, @@ -140,6 +331,7 @@ enum { P9_QTFILE = 0x00, }; +/* 9P Magic Numbers */ #define P9_NOTAG (u16)(~0) #define P9_NOFID (u32)(~0) #define P9_MAXWELEM 16 @@ -147,42 +339,60 @@ enum { /* ample room for Twrite/Rread header */ #define P9_IOHDRSZ 24 -struct p9_str { - u16 len; - char *str; -}; +/* Room for readdir header */ +#define P9_READDIRHDRSZ 24 + +/* size of header for zero copy read/write */ +#define P9_ZC_HDR_SZ 4096 + +/** + * struct p9_qid - file system entity information + * @type: 8-bit type &p9_qid_t + * @version: 16-bit monotonically incrementing version number + * @path: 64-bit per-server-unique ID for a file system element + * + * qids are identifiers used by 9P servers to track file system + * entities. The type is used to differentiate semantics for operations + * on the entity (ie. read means something different on a directory than + * on a file). The path provides a server unique index for an entity + * (roughly analogous to an inode number), while the version is updated + * every time a file is modified and can be used to maintain cache + * coherency between clients and serves. + * Servers will often differentiate purely synthetic entities by setting + * their version to 0, signaling that they should never be cached and + * should be accessed synchronously. + * + * See Also://plan9.bell-labs.com/magic/man2html/2/stat + */ -/* qids are the unique ID for a file (like an inode */ struct p9_qid { u8 type; u32 version; u64 path; }; -/* Plan 9 file metadata (stat) structure */ -struct p9_stat { - u16 size; - u16 type; - u32 dev; - struct p9_qid qid; - u32 mode; - u32 atime; - u32 mtime; - u64 length; - struct p9_str name; - struct p9_str uid; - struct p9_str gid; - struct p9_str muid; - struct p9_str extension; /* 9p2000.u extensions */ - u32 n_uid; /* 9p2000.u extensions */ - u32 n_gid; /* 9p2000.u extensions */ - u32 n_muid; /* 9p2000.u extensions */ -}; +/** + * struct p9_wstat - file system metadata information + * @size: length prefix for this stat structure instance + * @type: the type of the server (equivalent to a major number) + * @dev: the sub-type of the server (equivalent to a minor number) + * @qid: unique id from the server of type &p9_qid + * @mode: Plan 9 format permissions of type &p9_perm_t + * @atime: Last access/read time + * @mtime: Last modify/write time + * @length: file length + * @name: last element of path (aka filename) + * @uid: owner name + * @gid: group owner + * @muid: last modifier + * @extension: area used to encode extended UNIX support + * @n_uid: numeric user id of owner (part of 9p2000.u extension) + * @n_gid: numeric group id (part of 9p2000.u extension) + * @n_muid: numeric user id of laster modifier (part of 9p2000.u extension) + * + * See Also: http://plan9.bell-labs.com/magic/man2html/2/stat + */ -/* file metadata (stat) structure used to create Twstat message - The is similar to p9_stat, but the strings don't point to - the same memory block and should be freed separately -*/ struct p9_wstat { u16 size; u16 type; @@ -197,215 +407,162 @@ struct p9_wstat { 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 */ + kuid_t n_uid; /* 9p2000.u extensions */ + kgid_t n_gid; /* 9p2000.u extensions */ + kuid_t n_muid; /* 9p2000.u extensions */ }; -/* Structures for Protocol Operations */ -struct p9_tversion { - u32 msize; - struct p9_str version; -}; - -struct p9_rversion { - u32 msize; - struct p9_str version; -}; - -struct p9_tauth { - u32 afid; - struct p9_str uname; - struct p9_str aname; - u32 n_uname; /* 9P2000.u extensions */ -}; - -struct p9_rauth { +struct p9_stat_dotl { + u64 st_result_mask; struct p9_qid qid; -}; - -struct p9_rerror { - struct p9_str error; - u32 errno; /* 9p2000.u extension */ -}; - -struct p9_tflush { - u16 oldtag; -}; - -struct p9_rflush { -}; - -struct p9_tattach { - u32 fid; - u32 afid; - struct p9_str uname; - struct p9_str aname; - u32 n_uname; /* 9P2000.u extensions */ -}; - -struct p9_rattach { - struct p9_qid qid; -}; - -struct p9_twalk { - u32 fid; - u32 newfid; - u16 nwname; - struct p9_str wnames[16]; -}; - -struct p9_rwalk { - u16 nwqid; - struct p9_qid wqids[16]; -}; - -struct p9_topen { - u32 fid; - u8 mode; -}; - -struct p9_ropen { - struct p9_qid qid; - u32 iounit; -}; - -struct p9_tcreate { - u32 fid; - struct p9_str name; - u32 perm; - u8 mode; - struct p9_str extension; -}; - -struct p9_rcreate { - struct p9_qid qid; - u32 iounit; -}; - -struct p9_tread { - u32 fid; - u64 offset; - u32 count; -}; - -struct p9_rread { - u32 count; - u8 *data; -}; - -struct p9_twrite { - u32 fid; - u64 offset; - u32 count; - u8 *data; -}; - -struct p9_rwrite { - u32 count; -}; - -struct p9_tclunk { - u32 fid; -}; - -struct p9_rclunk { -}; - -struct p9_tremove { - u32 fid; -}; - -struct p9_rremove { -}; - -struct p9_tstat { - u32 fid; -}; + u32 st_mode; + kuid_t st_uid; + kgid_t st_gid; + u64 st_nlink; + u64 st_rdev; + u64 st_size; + u64 st_blksize; + u64 st_blocks; + u64 st_atime_sec; + u64 st_atime_nsec; + u64 st_mtime_sec; + u64 st_mtime_nsec; + u64 st_ctime_sec; + u64 st_ctime_nsec; + u64 st_btime_sec; + u64 st_btime_nsec; + u64 st_gen; + u64 st_data_version; +}; + +#define P9_STATS_MODE 0x00000001ULL +#define P9_STATS_NLINK 0x00000002ULL +#define P9_STATS_UID 0x00000004ULL +#define P9_STATS_GID 0x00000008ULL +#define P9_STATS_RDEV 0x00000010ULL +#define P9_STATS_ATIME 0x00000020ULL +#define P9_STATS_MTIME 0x00000040ULL +#define P9_STATS_CTIME 0x00000080ULL +#define P9_STATS_INO 0x00000100ULL +#define P9_STATS_SIZE 0x00000200ULL +#define P9_STATS_BLOCKS 0x00000400ULL + +#define P9_STATS_BTIME 0x00000800ULL +#define P9_STATS_GEN 0x00001000ULL +#define P9_STATS_DATA_VERSION 0x00002000ULL + +#define P9_STATS_BASIC 0x000007ffULL /* Mask for fields up to BLOCKS */ +#define P9_STATS_ALL 0x00003fffULL /* Mask for All fields above */ + +/** + * struct p9_iattr_dotl - P9 inode attribute for setattr + * @valid: bitfield specifying which fields are valid + * same as in struct iattr + * @mode: File permission bits + * @uid: user id of owner + * @gid: group id + * @size: File size + * @atime_sec: Last access time, seconds + * @atime_nsec: Last access time, nanoseconds + * @mtime_sec: Last modification time, seconds + * @mtime_nsec: Last modification time, nanoseconds + */ -struct p9_rstat { - struct p9_stat stat; -}; +struct p9_iattr_dotl { + u32 valid; + u32 mode; + kuid_t uid; + kgid_t gid; + u64 size; + u64 atime_sec; + u64 atime_nsec; + u64 mtime_sec; + u64 mtime_nsec; +}; + +#define P9_LOCK_SUCCESS 0 +#define P9_LOCK_BLOCKED 1 +#define P9_LOCK_ERROR 2 +#define P9_LOCK_GRACE 3 + +#define P9_LOCK_FLAGS_BLOCK 1 +#define P9_LOCK_FLAGS_RECLAIM 2 + +/* struct p9_flock: POSIX lock structure + * @type - type of lock + * @flags - lock flags + * @start - starting offset of the lock + * @length - number of bytes + * @proc_id - process id which wants to take lock + * @client_id - client id + */ -struct p9_twstat { - u32 fid; - struct p9_stat stat; +struct p9_flock { + u8 type; + u32 flags; + u64 start; + u64 length; + u32 proc_id; + char *client_id; }; -struct p9_rwstat { -}; +/* struct p9_getlock: getlock structure + * @type - type of lock + * @start - starting offset of the lock + * @length - number of bytes + * @proc_id - process id which wants to take lock + * @client_id - client id + */ -/* - * fcall is the primary packet structure - * - */ +struct p9_getlock { + u8 type; + u64 start; + u64 length; + u32 proc_id; + char *client_id; +}; + +struct p9_rstatfs { + u32 type; + u32 bsize; + u64 blocks; + u64 bfree; + u64 bavail; + u64 files; + u64 ffree; + u64 fsid; + u32 namelen; +}; + +/** + * struct p9_fcall - primary packet structure + * @size: prefixed length of the structure + * @id: protocol operating identifier of type &p9_msg_t + * @tag: transaction id of the request + * @offset: used by marshalling routines to track current position in buffer + * @capacity: used by marshalling routines to track total malloc'd capacity + * @sdata: payload + * + * &p9_fcall represents the structure for all 9P RPC + * transactions. Requests are packaged into fcalls, and reponses + * must be extracted from them. + * + * See Also: http://plan9.bell-labs.com/magic/man2html/2/fcall + */ struct p9_fcall { u32 size; u8 id; u16 tag; - void *sdata; - - union { - struct p9_tversion tversion; - struct p9_rversion rversion; - struct p9_tauth tauth; - struct p9_rauth rauth; - struct p9_rerror rerror; - struct p9_tflush tflush; - struct p9_rflush rflush; - struct p9_tattach tattach; - struct p9_rattach rattach; - struct p9_twalk twalk; - struct p9_rwalk rwalk; - struct p9_topen topen; - struct p9_ropen ropen; - struct p9_tcreate tcreate; - struct p9_rcreate rcreate; - struct p9_tread tread; - struct p9_rread rread; - struct p9_twrite twrite; - struct p9_rwrite rwrite; - struct p9_tclunk tclunk; - struct p9_rclunk rclunk; - struct p9_tremove tremove; - struct p9_rremove rremove; - struct p9_tstat tstat; - struct p9_rstat rstat; - struct p9_twstat twstat; - struct p9_rwstat rwstat; - } params; + + size_t offset; + size_t capacity; + + u8 *sdata; }; struct p9_idpool; -int p9_deserialize_stat(void *buf, u32 buflen, struct p9_stat *stat, - int dotu); -int p9_deserialize_fcall(void *buf, u32 buflen, struct p9_fcall *fc, int dotu); -void p9_set_tag(struct p9_fcall *fc, u16 tag); -struct p9_fcall *p9_create_tversion(u32 msize, char *version); -struct p9_fcall *p9_create_tattach(u32 fid, u32 afid, char *uname, - char *aname, u32 n_uname, int dotu); -struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname, - u32 n_uname, int dotu); -struct p9_fcall *p9_create_tflush(u16 oldtag); -struct p9_fcall *p9_create_twalk(u32 fid, u32 newfid, u16 nwname, - char **wnames); -struct p9_fcall *p9_create_topen(u32 fid, u8 mode); -struct p9_fcall *p9_create_tcreate(u32 fid, char *name, u32 perm, u8 mode, - char *extension, int dotu); -struct p9_fcall *p9_create_tread(u32 fid, u64 offset, u32 count); -struct p9_fcall *p9_create_twrite(u32 fid, u64 offset, u32 count, - const char *data); -struct p9_fcall *p9_create_twrite_u(u32 fid, u64 offset, u32 count, - const char __user *data); -struct p9_fcall *p9_create_tclunk(u32 fid); -struct p9_fcall *p9_create_tremove(u32 fid); -struct p9_fcall *p9_create_tstat(u32 fid); -struct p9_fcall *p9_create_twstat(u32 fid, struct p9_wstat *wstat, - int dotu); - -int p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int dotu); int p9_errstr2errno(char *errstr, int len); struct p9_idpool *p9_idpool_create(void); @@ -415,5 +572,6 @@ void p9_idpool_put(int id, struct p9_idpool *p); int p9_idpool_check(int id, struct p9_idpool *p); int p9_error_init(void); -int p9_errstr2errno(char *, int); +int p9_trans_fd_init(void); +void p9_trans_fd_exit(void); #endif /* NET_9P_H */ |