This patch attempts to do a better job of cleaning up after detecting errors on the transport. This should also improve error reporting on broken connections to servers. Signed-off-by: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
		
			
				
	
	
		
			179 lines
		
	
	
		
			6.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			179 lines
		
	
	
		
			6.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * linux/fs/9p/error.h
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 *
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 * Huge Nasty Error Table
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 *
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 * Plan 9 uses error strings, Unix uses error numbers.  This table tries to
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 * match UNIX strings and Plan 9 strings to unix error numbers.  It is used
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 * to preload the dynamic error table which can also track user-specific error
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 * strings.
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 *
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 *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
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 *  Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to:
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 *  Free Software Foundation
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 *  51 Franklin Street, Fifth Floor
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 *  Boston, MA  02111-1301  USA
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 *
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 */
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#include <linux/errno.h>
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#include <asm/errno.h>
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struct errormap {
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	char *name;
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	int val;
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	struct hlist_node list;
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};
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#define ERRHASHSZ		32
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static struct hlist_head hash_errmap[ERRHASHSZ];
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/* FixMe - reduce to a reasonable size */
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static struct errormap errmap[] = {
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	{"Operation not permitted", EPERM},
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	{"wstat prohibited", EPERM},
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	{"No such file or directory", ENOENT},
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	{"directory entry not found", ENOENT},
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	{"file not found", ENOENT},
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	{"Interrupted system call", EINTR},
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	{"Input/output error", EIO},
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	{"No such device or address", ENXIO},
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	{"Argument list too long", E2BIG},
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	{"Bad file descriptor", EBADF},
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	{"Resource temporarily unavailable", EAGAIN},
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	{"Cannot allocate memory", ENOMEM},
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	{"Permission denied", EACCES},
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	{"Bad address", EFAULT},
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	{"Block device required", ENOTBLK},
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	{"Device or resource busy", EBUSY},
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	{"File exists", EEXIST},
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	{"Invalid cross-device link", EXDEV},
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	{"No such device", ENODEV},
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	{"Not a directory", ENOTDIR},
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	{"Is a directory", EISDIR},
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	{"Invalid argument", EINVAL},
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	{"Too many open files in system", ENFILE},
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	{"Too many open files", EMFILE},
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	{"Text file busy", ETXTBSY},
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	{"File too large", EFBIG},
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	{"No space left on device", ENOSPC},
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	{"Illegal seek", ESPIPE},
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	{"Read-only file system", EROFS},
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	{"Too many links", EMLINK},
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	{"Broken pipe", EPIPE},
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	{"Numerical argument out of domain", EDOM},
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	{"Numerical result out of range", ERANGE},
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	{"Resource deadlock avoided", EDEADLK},
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	{"File name too long", ENAMETOOLONG},
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	{"No locks available", ENOLCK},
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	{"Function not implemented", ENOSYS},
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	{"Directory not empty", ENOTEMPTY},
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	{"Too many levels of symbolic links", ELOOP},
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	{"No message of desired type", ENOMSG},
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	{"Identifier removed", EIDRM},
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	{"No data available", ENODATA},
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	{"Machine is not on the network", ENONET},
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	{"Package not installed", ENOPKG},
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	{"Object is remote", EREMOTE},
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	{"Link has been severed", ENOLINK},
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	{"Communication error on send", ECOMM},
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	{"Protocol error", EPROTO},
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	{"Bad message", EBADMSG},
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	{"File descriptor in bad state", EBADFD},
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	{"Streams pipe error", ESTRPIPE},
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	{"Too many users", EUSERS},
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	{"Socket operation on non-socket", ENOTSOCK},
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	{"Message too long", EMSGSIZE},
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	{"Protocol not available", ENOPROTOOPT},
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	{"Protocol not supported", EPROTONOSUPPORT},
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	{"Socket type not supported", ESOCKTNOSUPPORT},
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	{"Operation not supported", EOPNOTSUPP},
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	{"Protocol family not supported", EPFNOSUPPORT},
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	{"Network is down", ENETDOWN},
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	{"Network is unreachable", ENETUNREACH},
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	{"Network dropped connection on reset", ENETRESET},
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	{"Software caused connection abort", ECONNABORTED},
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	{"Connection reset by peer", ECONNRESET},
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	{"No buffer space available", ENOBUFS},
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	{"Transport endpoint is already connected", EISCONN},
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	{"Transport endpoint is not connected", ENOTCONN},
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	{"Cannot send after transport endpoint shutdown", ESHUTDOWN},
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	{"Connection timed out", ETIMEDOUT},
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	{"Connection refused", ECONNREFUSED},
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	{"Host is down", EHOSTDOWN},
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	{"No route to host", EHOSTUNREACH},
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	{"Operation already in progress", EALREADY},
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	{"Operation now in progress", EINPROGRESS},
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	{"Is a named type file", EISNAM},
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	{"Remote I/O error", EREMOTEIO},
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	{"Disk quota exceeded", EDQUOT},
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/* errors from fossil, vacfs, and u9fs */
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	{"fid unknown or out of range", EBADF},
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	{"permission denied", EACCES},
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	{"file does not exist", ENOENT},
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	{"authentication failed", ECONNREFUSED},
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	{"bad offset in directory read", ESPIPE},
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	{"bad use of fid", EBADF},
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	{"wstat can't convert between files and directories", EPERM},
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	{"directory is not empty", ENOTEMPTY},
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	{"file exists", EEXIST},
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	{"file already exists", EEXIST},
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	{"file or directory already exists", EEXIST},
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	{"fid already in use", EBADF},
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	{"file in use", ETXTBSY},
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	{"i/o error", EIO},
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	{"file already open for I/O", ETXTBSY},
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	{"illegal mode", EINVAL},
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	{"illegal name", ENAMETOOLONG},
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	{"not a directory", ENOTDIR},
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	{"not a member of proposed group", EPERM},
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	{"not owner", EACCES},
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	{"only owner can change group in wstat", EACCES},
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	{"read only file system", EROFS},
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	{"no access to special file", EPERM},
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	{"i/o count too large", EIO},
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	{"unknown group", EINVAL},
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	{"unknown user", EINVAL},
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	{"bogus wstat buffer", EPROTO},
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	{"exclusive use file already open", EAGAIN},
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	{"corrupted directory entry", EIO},
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	{"corrupted file entry", EIO},
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	{"corrupted block label", EIO},
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	{"corrupted meta data", EIO},
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	{"illegal offset", EINVAL},
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	{"illegal path element", ENOENT},
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	{"root of file system is corrupted", EIO},
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	{"corrupted super block", EIO},
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	{"protocol botch", EPROTO},
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	{"file system is full", ENOSPC},
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	{"file is in use", EAGAIN},
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	{"directory entry is not allocated", ENOENT},
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	{"file is read only", EROFS},
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	{"file has been removed", EIDRM},
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	{"only support truncation to zero length", EPERM},
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	{"cannot remove root", EPERM},
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	{"file too big", EFBIG},
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	{"venti i/o error", EIO},
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	/* these are not errors */
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	{"u9fs rhostsauth: no authentication required", 0},
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	{"u9fs authnone: no authentication required", 0},
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	{NULL, -1}
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};
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extern int v9fs_error_init(void);
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extern int v9fs_errstr2errno(char *errstr);
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