| .. | .. |
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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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| 1 | 2 | /* miscellaneous bits |
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| 2 | 3 | * |
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| 3 | 4 | * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
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| 4 | 5 | * Written by David Howells (dhowells@redhat.com) |
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| 5 | | - * |
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| 6 | | - * This program is free software; you can redistribute it and/or |
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| 7 | | - * modify it under the terms of the GNU General Public License |
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| 8 | | - * as published by the Free Software Foundation; either version |
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| 9 | | - * 2 of the License, or (at your option) any later version. |
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| 10 | 6 | */ |
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| 11 | 7 | |
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| 12 | 8 | #include <linux/kernel.h> |
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| .. | .. |
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| 14 | 10 | #include <linux/errno.h> |
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| 15 | 11 | #include "internal.h" |
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| 16 | 12 | #include "afs_fs.h" |
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| 13 | +#include "protocol_uae.h" |
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| 17 | 14 | |
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| 18 | 15 | /* |
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| 19 | 16 | * convert an AFS abort code to a Linux error number |
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| .. | .. |
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| 69 | 66 | case AFSVL_PERM: return -EACCES; |
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| 70 | 67 | case AFSVL_NOMEM: return -EREMOTEIO; |
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| 71 | 68 | |
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| 72 | | - /* Unified AFS error table; ET "uae" == 0x2f6df00 */ |
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| 73 | | - case 0x2f6df00: return -EPERM; |
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| 74 | | - case 0x2f6df01: return -ENOENT; |
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| 75 | | - case 0x2f6df04: return -EIO; |
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| 76 | | - case 0x2f6df0a: return -EAGAIN; |
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| 77 | | - case 0x2f6df0b: return -ENOMEM; |
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| 78 | | - case 0x2f6df0c: return -EACCES; |
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| 79 | | - case 0x2f6df0f: return -EBUSY; |
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| 80 | | - case 0x2f6df10: return -EEXIST; |
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| 81 | | - case 0x2f6df11: return -EXDEV; |
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| 82 | | - case 0x2f6df12: return -ENODEV; |
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| 83 | | - case 0x2f6df13: return -ENOTDIR; |
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| 84 | | - case 0x2f6df14: return -EISDIR; |
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| 85 | | - case 0x2f6df15: return -EINVAL; |
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| 86 | | - case 0x2f6df1a: return -EFBIG; |
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| 87 | | - case 0x2f6df1b: return -ENOSPC; |
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| 88 | | - case 0x2f6df1d: return -EROFS; |
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| 89 | | - case 0x2f6df1e: return -EMLINK; |
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| 90 | | - case 0x2f6df20: return -EDOM; |
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| 91 | | - case 0x2f6df21: return -ERANGE; |
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| 92 | | - case 0x2f6df22: return -EDEADLK; |
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| 93 | | - case 0x2f6df23: return -ENAMETOOLONG; |
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| 94 | | - case 0x2f6df24: return -ENOLCK; |
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| 95 | | - case 0x2f6df26: return -ENOTEMPTY; |
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| 96 | | - case 0x2f6df28: return -EWOULDBLOCK; |
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| 97 | | - case 0x2f6df69: return -ENOTCONN; |
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| 98 | | - case 0x2f6df6c: return -ETIMEDOUT; |
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| 99 | | - case 0x2f6df78: return -EDQUOT; |
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| 69 | + /* Unified AFS error table */ |
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| 70 | + case UAEPERM: return -EPERM; |
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| 71 | + case UAENOENT: return -ENOENT; |
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| 72 | + case UAEAGAIN: return -EAGAIN; |
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| 73 | + case UAEACCES: return -EACCES; |
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| 74 | + case UAEBUSY: return -EBUSY; |
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| 75 | + case UAEEXIST: return -EEXIST; |
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| 76 | + case UAENOTDIR: return -ENOTDIR; |
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| 77 | + case UAEISDIR: return -EISDIR; |
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| 78 | + case UAEFBIG: return -EFBIG; |
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| 79 | + case UAENOSPC: return -ENOSPC; |
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| 80 | + case UAEROFS: return -EROFS; |
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| 81 | + case UAEMLINK: return -EMLINK; |
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| 82 | + case UAEDEADLK: return -EDEADLK; |
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| 83 | + case UAENAMETOOLONG: return -ENAMETOOLONG; |
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| 84 | + case UAENOLCK: return -ENOLCK; |
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| 85 | + case UAENOTEMPTY: return -ENOTEMPTY; |
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| 86 | + case UAELOOP: return -ELOOP; |
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| 87 | + case UAEOVERFLOW: return -EOVERFLOW; |
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| 88 | + case UAENOMEDIUM: return -ENOMEDIUM; |
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| 89 | + case UAEDQUOT: return -EDQUOT; |
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| 100 | 90 | |
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| 101 | 91 | /* RXKAD abort codes; from include/rxrpc/packet.h. ET "RXK" == 0x1260B00 */ |
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| 102 | 92 | case RXKADINCONSISTENCY: return -EPROTO; |
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| .. | .. |
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| 118 | 108 | default: return -EREMOTEIO; |
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| 119 | 109 | } |
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| 120 | 110 | } |
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| 111 | + |
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| 112 | +/* |
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| 113 | + * Select the error to report from a set of errors. |
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| 114 | + */ |
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| 115 | +void afs_prioritise_error(struct afs_error *e, int error, u32 abort_code) |
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| 116 | +{ |
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| 117 | + switch (error) { |
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| 118 | + case 0: |
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| 119 | + return; |
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| 120 | + default: |
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| 121 | + if (e->error == -ETIMEDOUT || |
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| 122 | + e->error == -ETIME) |
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| 123 | + return; |
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| 124 | + fallthrough; |
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| 125 | + case -ETIMEDOUT: |
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| 126 | + case -ETIME: |
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| 127 | + if (e->error == -ENOMEM || |
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| 128 | + e->error == -ENONET) |
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| 129 | + return; |
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| 130 | + fallthrough; |
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| 131 | + case -ENOMEM: |
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| 132 | + case -ENONET: |
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| 133 | + if (e->error == -ERFKILL) |
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| 134 | + return; |
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| 135 | + fallthrough; |
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| 136 | + case -ERFKILL: |
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| 137 | + if (e->error == -EADDRNOTAVAIL) |
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| 138 | + return; |
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| 139 | + fallthrough; |
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| 140 | + case -EADDRNOTAVAIL: |
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| 141 | + if (e->error == -ENETUNREACH) |
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| 142 | + return; |
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| 143 | + fallthrough; |
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| 144 | + case -ENETUNREACH: |
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| 145 | + if (e->error == -EHOSTUNREACH) |
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| 146 | + return; |
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| 147 | + fallthrough; |
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| 148 | + case -EHOSTUNREACH: |
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| 149 | + if (e->error == -EHOSTDOWN) |
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| 150 | + return; |
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| 151 | + fallthrough; |
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| 152 | + case -EHOSTDOWN: |
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| 153 | + if (e->error == -ECONNREFUSED) |
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| 154 | + return; |
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| 155 | + fallthrough; |
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| 156 | + case -ECONNREFUSED: |
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| 157 | + if (e->error == -ECONNRESET) |
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| 158 | + return; |
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| 159 | + fallthrough; |
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| 160 | + case -ECONNRESET: /* Responded, but call expired. */ |
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| 161 | + if (e->responded) |
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| 162 | + return; |
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| 163 | + e->error = error; |
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| 164 | + return; |
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| 165 | + |
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| 166 | + case -ECONNABORTED: |
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| 167 | + e->responded = true; |
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| 168 | + e->error = afs_abort_to_error(abort_code); |
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| 169 | + return; |
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| 170 | + } |
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| 171 | +} |
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