// SPDX-License-Identifier: GPL-2.0-or-later/* miscellaneous bits * * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #include <linux/kernel.h>#include <linux/module.h>#include <linux/errno.h>#include <crypto/krb5.h>#include "internal.h"#include "afs_fs.h"#include "protocol_uae.h" /* * convert an AFS abort code to a Linux error number */int afs_abort_to_error(u32 abort_code){	switch (abort_code) {		/* Low errno codes inserted into abort namespace */	case 13:		return -EACCES;	case 27:		return -EFBIG;	case 30:		return -EROFS; 		/* VICE "special error" codes; 101 - 111 */	case VSALVAGE:		return -EIO;	case VNOVNODE:		return -ENOENT;	case VNOVOL:		return -ENOMEDIUM;	case VVOLEXISTS:	return -EEXIST;	case VNOSERVICE:	return -EIO;	case VOFFLINE:		return -ENOENT;	case VONLINE:		return -EEXIST;	case VDISKFULL:		return -ENOSPC;	case VOVERQUOTA:	return -EDQUOT;	case VBUSY:		return -EBUSY;	case VMOVED:		return -ENXIO; 		/* Volume Location server errors */	case AFSVL_IDEXIST:		return -EEXIST;	case AFSVL_IO:			return -EREMOTEIO;	case AFSVL_NAMEEXIST:		return -EEXIST;	case AFSVL_CREATEFAIL:		return -EREMOTEIO;	case AFSVL_NOENT:		return -ENOMEDIUM;	case AFSVL_EMPTY:		return -ENOMEDIUM;	case AFSVL_ENTDELETED:		return -ENOMEDIUM;	case AFSVL_BADNAME:		return -EINVAL;	case AFSVL_BADINDEX:		return -EINVAL;	case AFSVL_BADVOLTYPE:		return -EINVAL;	case AFSVL_BADSERVER:		return -EINVAL;	case AFSVL_BADPARTITION:	return -EINVAL;	case AFSVL_REPSFULL:		return -EFBIG;	case AFSVL_NOREPSERVER:		return -ENOENT;	case AFSVL_DUPREPSERVER:	return -EEXIST;	case AFSVL_RWNOTFOUND:		return -ENOENT;	case AFSVL_BADREFCOUNT:		return -EINVAL;	case AFSVL_SIZEEXCEEDED:	return -EINVAL;	case AFSVL_BADENTRY:		return -EINVAL;	case AFSVL_BADVOLIDBUMP:	return -EINVAL;	case AFSVL_IDALREADYHASHED:	return -EINVAL;	case AFSVL_ENTRYLOCKED:		return -EBUSY;	case AFSVL_BADVOLOPER:		return -EBADRQC;	case AFSVL_BADRELLOCKTYPE:	return -EINVAL;	case AFSVL_RERELEASE:		return -EREMOTEIO;	case AFSVL_BADSERVERFLAG:	return -EINVAL;	case AFSVL_PERM:		return -EACCES;	case AFSVL_NOMEM:		return -EREMOTEIO; 		/* Unified AFS error table */	case UAEPERM:			return -EPERM;	case UAENOENT:			return -ENOENT;	case UAEAGAIN:			return -EAGAIN;	case UAEACCES:			return -EACCES;	case UAEBUSY:			return -EBUSY;	case UAEEXIST:			return -EEXIST;	case UAENOTDIR:			return -ENOTDIR;	case UAEISDIR:			return -EISDIR;	case UAEFBIG:			return -EFBIG;	case UAENOSPC:			return -ENOSPC;	case UAEROFS:			return -EROFS;	case UAEMLINK:			return -EMLINK;	case UAEDEADLK:			return -EDEADLK;	case UAENAMETOOLONG:		return -ENAMETOOLONG;	case UAENOLCK:			return -ENOLCK;	case UAENOTEMPTY:		return -ENOTEMPTY;	case UAELOOP:			return -ELOOP;	case UAEOVERFLOW:		return -EOVERFLOW;	case UAENOMEDIUM:		return -ENOMEDIUM;	case UAEDQUOT:			return -EDQUOT; 		/* RXKAD abort codes; from include/rxrpc/packet.h.  ET "RXK" == 0x1260B00 */	case RXKADINCONSISTENCY: return -EPROTO;	case RXKADPACKETSHORT:	return -EPROTO;	case RXKADLEVELFAIL:	return -EKEYREJECTED;	case RXKADTICKETLEN:	return -EKEYREJECTED;	case RXKADOUTOFSEQUENCE: return -EPROTO;	case RXKADNOAUTH:	return -EKEYREJECTED;	case RXKADBADKEY:	return -EKEYREJECTED;	case RXKADBADTICKET:	return -EKEYREJECTED;	case RXKADUNKNOWNKEY:	return -EKEYREJECTED;	case RXKADEXPIRED:	return -EKEYEXPIRED;	case RXKADSEALEDINCON:	return -EKEYREJECTED;	case RXKADDATALEN:	return -EKEYREJECTED;	case RXKADILLEGALLEVEL:	return -EKEYREJECTED; 	case RXGK_INCONSISTENCY:	return -EPROTO;	case RXGK_PACKETSHORT:		return -EPROTO;	case RXGK_BADCHALLENGE:		return -EPROTO;	case RXGK_SEALEDINCON:		return -EKEYREJECTED;	case RXGK_NOTAUTH:		return -EKEYREJECTED;	case RXGK_EXPIRED:		return -EKEYEXPIRED;	case RXGK_BADLEVEL:		return -EKEYREJECTED;	case RXGK_BADKEYNO:		return -EKEYREJECTED;	case RXGK_NOTRXGK:		return -EKEYREJECTED;	case RXGK_UNSUPPORTED:		return -EKEYREJECTED;	case RXGK_GSSERROR:		return -EKEYREJECTED;#ifdef RXGK_BADETYPE	case RXGK_BADETYPE:		return -ENOPKG;#endif#ifdef RXGK_BADTOKEN	case RXGK_BADTOKEN:		return -EKEYREJECTED;#endif#ifdef RXGK_BADETYPE	case RXGK_DATALEN:		return -EPROTO;#endif#ifdef RXGK_BADQOP	case RXGK_BADQOP:		return -EKEYREJECTED;#endif 	case KRB5_PROG_KEYTYPE_NOSUPP:	return -ENOPKG; 	case RXGEN_OPCODE:	return -ENOTSUPP;	case RX_INVALID_OPERATION:	return -ENOTSUPP; 	default:		return -EREMOTEIO;	}} /* * Select the error to report from a set of errors. */void afs_prioritise_error(struct afs_error *e, int error, u32 abort_code){	switch (error) {	case 0:		e->aborted = false;		e->error = 0;		return;	default:		if (e->error == -ETIMEDOUT ||		    e->error == -ETIME)			return;		fallthrough;	case -ETIMEDOUT:	case -ETIME:		if (e->error == -ENOMEM ||		    e->error == -ENONET)			return;		fallthrough;	case -ENOMEM:	case -ENONET:		if (e->error == -ERFKILL)			return;		fallthrough;	case -ERFKILL:		if (e->error == -EADDRNOTAVAIL)			return;		fallthrough;	case -EADDRNOTAVAIL:		if (e->error == -ENETUNREACH)			return;		fallthrough;	case -ENETUNREACH:		if (e->error == -EHOSTUNREACH)			return;		fallthrough;	case -EHOSTUNREACH:		if (e->error == -EHOSTDOWN)			return;		fallthrough;	case -EHOSTDOWN:		if (e->error == -ECONNREFUSED)			return;		fallthrough;	case -ECONNREFUSED:		if (e->error == -ECONNRESET)			return;		fallthrough;	case -ECONNRESET: /* Responded, but call expired. */		if (e->responded)			return;		e->error = error;		e->aborted = false;		return; 	case -ECONNABORTED:		e->error = afs_abort_to_error(abort_code);		e->aborted = true;		e->responded = true;		return;	case -ENETRESET: /* Responded, but we seem to have changed address */		e->aborted = false;		e->responded = true;		e->error = error;		return;	}}