0066f1b0e2
When trying to get a file lock on an AFS file, the server may return UAEAGAIN to indicate that the lock is already held. This is currently translated by the default path to -EREMOTEIO. Translate it instead to -EAGAIN so that we know we can retry it. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeffrey E Altman <jaltman@auristor.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org Link: https://lore.kernel.org/r/166075761334.3533338.2591992675160918098.stgit@warthog.procyon.org.uk/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
175 lines
4.8 KiB
C
175 lines
4.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* miscellaneous bits
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*
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* Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include "internal.h"
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#include "afs_fs.h"
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#include "protocol_uae.h"
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/*
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* convert an AFS abort code to a Linux error number
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*/
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int afs_abort_to_error(u32 abort_code)
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{
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switch (abort_code) {
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/* Low errno codes inserted into abort namespace */
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case 13: return -EACCES;
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case 27: return -EFBIG;
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case 30: return -EROFS;
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/* VICE "special error" codes; 101 - 111 */
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case VSALVAGE: return -EIO;
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case VNOVNODE: return -ENOENT;
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case VNOVOL: return -ENOMEDIUM;
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case VVOLEXISTS: return -EEXIST;
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case VNOSERVICE: return -EIO;
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case VOFFLINE: return -ENOENT;
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case VONLINE: return -EEXIST;
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case VDISKFULL: return -ENOSPC;
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case VOVERQUOTA: return -EDQUOT;
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case VBUSY: return -EBUSY;
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case VMOVED: return -ENXIO;
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/* Volume Location server errors */
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case AFSVL_IDEXIST: return -EEXIST;
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case AFSVL_IO: return -EREMOTEIO;
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case AFSVL_NAMEEXIST: return -EEXIST;
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case AFSVL_CREATEFAIL: return -EREMOTEIO;
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case AFSVL_NOENT: return -ENOMEDIUM;
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case AFSVL_EMPTY: return -ENOMEDIUM;
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case AFSVL_ENTDELETED: return -ENOMEDIUM;
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case AFSVL_BADNAME: return -EINVAL;
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case AFSVL_BADINDEX: return -EINVAL;
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case AFSVL_BADVOLTYPE: return -EINVAL;
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case AFSVL_BADSERVER: return -EINVAL;
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case AFSVL_BADPARTITION: return -EINVAL;
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case AFSVL_REPSFULL: return -EFBIG;
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case AFSVL_NOREPSERVER: return -ENOENT;
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case AFSVL_DUPREPSERVER: return -EEXIST;
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case AFSVL_RWNOTFOUND: return -ENOENT;
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case AFSVL_BADREFCOUNT: return -EINVAL;
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case AFSVL_SIZEEXCEEDED: return -EINVAL;
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case AFSVL_BADENTRY: return -EINVAL;
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case AFSVL_BADVOLIDBUMP: return -EINVAL;
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case AFSVL_IDALREADYHASHED: return -EINVAL;
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case AFSVL_ENTRYLOCKED: return -EBUSY;
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case AFSVL_BADVOLOPER: return -EBADRQC;
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case AFSVL_BADRELLOCKTYPE: return -EINVAL;
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case AFSVL_RERELEASE: return -EREMOTEIO;
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case AFSVL_BADSERVERFLAG: return -EINVAL;
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case AFSVL_PERM: return -EACCES;
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case AFSVL_NOMEM: return -EREMOTEIO;
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/* Unified AFS error table */
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case UAEPERM: return -EPERM;
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case UAENOENT: return -ENOENT;
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case UAEAGAIN: return -EAGAIN;
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case UAEACCES: return -EACCES;
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case UAEBUSY: return -EBUSY;
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case UAEEXIST: return -EEXIST;
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case UAENOTDIR: return -ENOTDIR;
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case UAEISDIR: return -EISDIR;
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case UAEFBIG: return -EFBIG;
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case UAENOSPC: return -ENOSPC;
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case UAEROFS: return -EROFS;
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case UAEMLINK: return -EMLINK;
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case UAEDEADLK: return -EDEADLK;
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case UAENAMETOOLONG: return -ENAMETOOLONG;
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case UAENOLCK: return -ENOLCK;
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case UAENOTEMPTY: return -ENOTEMPTY;
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case UAELOOP: return -ELOOP;
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case UAEOVERFLOW: return -EOVERFLOW;
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case UAENOMEDIUM: return -ENOMEDIUM;
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case UAEDQUOT: return -EDQUOT;
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/* RXKAD abort codes; from include/rxrpc/packet.h. ET "RXK" == 0x1260B00 */
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case RXKADINCONSISTENCY: return -EPROTO;
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case RXKADPACKETSHORT: return -EPROTO;
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case RXKADLEVELFAIL: return -EKEYREJECTED;
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case RXKADTICKETLEN: return -EKEYREJECTED;
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case RXKADOUTOFSEQUENCE: return -EPROTO;
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case RXKADNOAUTH: return -EKEYREJECTED;
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case RXKADBADKEY: return -EKEYREJECTED;
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case RXKADBADTICKET: return -EKEYREJECTED;
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case RXKADUNKNOWNKEY: return -EKEYREJECTED;
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case RXKADEXPIRED: return -EKEYEXPIRED;
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case RXKADSEALEDINCON: return -EKEYREJECTED;
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case RXKADDATALEN: return -EKEYREJECTED;
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case RXKADILLEGALLEVEL: return -EKEYREJECTED;
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case RXGEN_OPCODE: return -ENOTSUPP;
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default: return -EREMOTEIO;
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}
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}
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/*
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* Select the error to report from a set of errors.
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*/
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void afs_prioritise_error(struct afs_error *e, int error, u32 abort_code)
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{
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switch (error) {
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case 0:
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return;
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default:
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if (e->error == -ETIMEDOUT ||
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e->error == -ETIME)
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return;
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fallthrough;
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case -ETIMEDOUT:
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case -ETIME:
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if (e->error == -ENOMEM ||
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e->error == -ENONET)
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return;
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fallthrough;
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case -ENOMEM:
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case -ENONET:
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if (e->error == -ERFKILL)
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return;
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fallthrough;
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case -ERFKILL:
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if (e->error == -EADDRNOTAVAIL)
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return;
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fallthrough;
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case -EADDRNOTAVAIL:
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if (e->error == -ENETUNREACH)
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return;
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fallthrough;
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case -ENETUNREACH:
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if (e->error == -EHOSTUNREACH)
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return;
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fallthrough;
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case -EHOSTUNREACH:
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if (e->error == -EHOSTDOWN)
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return;
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fallthrough;
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case -EHOSTDOWN:
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if (e->error == -ECONNREFUSED)
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return;
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fallthrough;
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case -ECONNREFUSED:
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if (e->error == -ECONNRESET)
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return;
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fallthrough;
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case -ECONNRESET: /* Responded, but call expired. */
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if (e->responded)
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return;
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e->error = error;
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return;
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case -ECONNABORTED:
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error = afs_abort_to_error(abort_code);
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fallthrough;
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case -ENETRESET: /* Responded, but we seem to have changed address */
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e->responded = true;
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e->error = error;
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return;
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}
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}
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