1 | // SPDX-License-Identifier: GPL-2.0-or-later |
---|---|
2 | /* miscellaneous bits |
3 | * |
4 | * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
5 | * Written by David Howells (dhowells@redhat.com) |
6 | */ |
7 | |
8 | #include <linux/kernel.h> |
9 | #include <linux/module.h> |
10 | #include <linux/errno.h> |
11 | #include "internal.h" |
12 | #include "afs_fs.h" |
13 | #include "protocol_uae.h" |
14 | |
15 | /* |
16 | * convert an AFS abort code to a Linux error number |
17 | */ |
18 | int afs_abort_to_error(u32 abort_code) |
19 | { |
20 | switch (abort_code) { |
21 | /* Low errno codes inserted into abort namespace */ |
22 | case 13: return -EACCES; |
23 | case 27: return -EFBIG; |
24 | case 30: return -EROFS; |
25 | |
26 | /* VICE "special error" codes; 101 - 111 */ |
27 | case VSALVAGE: return -EIO; |
28 | case VNOVNODE: return -ENOENT; |
29 | case VNOVOL: return -ENOMEDIUM; |
30 | case VVOLEXISTS: return -EEXIST; |
31 | case VNOSERVICE: return -EIO; |
32 | case VOFFLINE: return -ENOENT; |
33 | case VONLINE: return -EEXIST; |
34 | case VDISKFULL: return -ENOSPC; |
35 | case VOVERQUOTA: return -EDQUOT; |
36 | case VBUSY: return -EBUSY; |
37 | case VMOVED: return -ENXIO; |
38 | |
39 | /* Volume Location server errors */ |
40 | case AFSVL_IDEXIST: return -EEXIST; |
41 | case AFSVL_IO: return -EREMOTEIO; |
42 | case AFSVL_NAMEEXIST: return -EEXIST; |
43 | case AFSVL_CREATEFAIL: return -EREMOTEIO; |
44 | case AFSVL_NOENT: return -ENOMEDIUM; |
45 | case AFSVL_EMPTY: return -ENOMEDIUM; |
46 | case AFSVL_ENTDELETED: return -ENOMEDIUM; |
47 | case AFSVL_BADNAME: return -EINVAL; |
48 | case AFSVL_BADINDEX: return -EINVAL; |
49 | case AFSVL_BADVOLTYPE: return -EINVAL; |
50 | case AFSVL_BADSERVER: return -EINVAL; |
51 | case AFSVL_BADPARTITION: return -EINVAL; |
52 | case AFSVL_REPSFULL: return -EFBIG; |
53 | case AFSVL_NOREPSERVER: return -ENOENT; |
54 | case AFSVL_DUPREPSERVER: return -EEXIST; |
55 | case AFSVL_RWNOTFOUND: return -ENOENT; |
56 | case AFSVL_BADREFCOUNT: return -EINVAL; |
57 | case AFSVL_SIZEEXCEEDED: return -EINVAL; |
58 | case AFSVL_BADENTRY: return -EINVAL; |
59 | case AFSVL_BADVOLIDBUMP: return -EINVAL; |
60 | case AFSVL_IDALREADYHASHED: return -EINVAL; |
61 | case AFSVL_ENTRYLOCKED: return -EBUSY; |
62 | case AFSVL_BADVOLOPER: return -EBADRQC; |
63 | case AFSVL_BADRELLOCKTYPE: return -EINVAL; |
64 | case AFSVL_RERELEASE: return -EREMOTEIO; |
65 | case AFSVL_BADSERVERFLAG: return -EINVAL; |
66 | case AFSVL_PERM: return -EACCES; |
67 | case AFSVL_NOMEM: return -EREMOTEIO; |
68 | |
69 | /* Unified AFS error table */ |
70 | case UAEPERM: return -EPERM; |
71 | case UAENOENT: return -ENOENT; |
72 | case UAEAGAIN: return -EAGAIN; |
73 | case UAEACCES: return -EACCES; |
74 | case UAEBUSY: return -EBUSY; |
75 | case UAEEXIST: return -EEXIST; |
76 | case UAENOTDIR: return -ENOTDIR; |
77 | case UAEISDIR: return -EISDIR; |
78 | case UAEFBIG: return -EFBIG; |
79 | case UAENOSPC: return -ENOSPC; |
80 | case UAEROFS: return -EROFS; |
81 | case UAEMLINK: return -EMLINK; |
82 | case UAEDEADLK: return -EDEADLK; |
83 | case UAENAMETOOLONG: return -ENAMETOOLONG; |
84 | case UAENOLCK: return -ENOLCK; |
85 | case UAENOTEMPTY: return -ENOTEMPTY; |
86 | case UAELOOP: return -ELOOP; |
87 | case UAEOVERFLOW: return -EOVERFLOW; |
88 | case UAENOMEDIUM: return -ENOMEDIUM; |
89 | case UAEDQUOT: return -EDQUOT; |
90 | |
91 | /* RXKAD abort codes; from include/rxrpc/packet.h. ET "RXK" == 0x1260B00 */ |
92 | case RXKADINCONSISTENCY: return -EPROTO; |
93 | case RXKADPACKETSHORT: return -EPROTO; |
94 | case RXKADLEVELFAIL: return -EKEYREJECTED; |
95 | case RXKADTICKETLEN: return -EKEYREJECTED; |
96 | case RXKADOUTOFSEQUENCE: return -EPROTO; |
97 | case RXKADNOAUTH: return -EKEYREJECTED; |
98 | case RXKADBADKEY: return -EKEYREJECTED; |
99 | case RXKADBADTICKET: return -EKEYREJECTED; |
100 | case RXKADUNKNOWNKEY: return -EKEYREJECTED; |
101 | case RXKADEXPIRED: return -EKEYEXPIRED; |
102 | case RXKADSEALEDINCON: return -EKEYREJECTED; |
103 | case RXKADDATALEN: return -EKEYREJECTED; |
104 | case RXKADILLEGALLEVEL: return -EKEYREJECTED; |
105 | |
106 | case RXGEN_OPCODE: return -ENOTSUPP; |
107 | |
108 | default: return -EREMOTEIO; |
109 | } |
110 | } |
111 | |
112 | /* |
113 | * Select the error to report from a set of errors. |
114 | */ |
115 | void afs_prioritise_error(struct afs_error *e, int error, u32 abort_code) |
116 | { |
117 | switch (error) { |
118 | case 0: |
119 | return; |
120 | default: |
121 | if (e->error == -ETIMEDOUT || |
122 | e->error == -ETIME) |
123 | return; |
124 | fallthrough; |
125 | case -ETIMEDOUT: |
126 | case -ETIME: |
127 | if (e->error == -ENOMEM || |
128 | e->error == -ENONET) |
129 | return; |
130 | fallthrough; |
131 | case -ENOMEM: |
132 | case -ENONET: |
133 | if (e->error == -ERFKILL) |
134 | return; |
135 | fallthrough; |
136 | case -ERFKILL: |
137 | if (e->error == -EADDRNOTAVAIL) |
138 | return; |
139 | fallthrough; |
140 | case -EADDRNOTAVAIL: |
141 | if (e->error == -ENETUNREACH) |
142 | return; |
143 | fallthrough; |
144 | case -ENETUNREACH: |
145 | if (e->error == -EHOSTUNREACH) |
146 | return; |
147 | fallthrough; |
148 | case -EHOSTUNREACH: |
149 | if (e->error == -EHOSTDOWN) |
150 | return; |
151 | fallthrough; |
152 | case -EHOSTDOWN: |
153 | if (e->error == -ECONNREFUSED) |
154 | return; |
155 | fallthrough; |
156 | case -ECONNREFUSED: |
157 | if (e->error == -ECONNRESET) |
158 | return; |
159 | fallthrough; |
160 | case -ECONNRESET: /* Responded, but call expired. */ |
161 | if (e->responded) |
162 | return; |
163 | e->error = error; |
164 | return; |
165 | |
166 | case -ECONNABORTED: |
167 | error = afs_abort_to_error(abort_code); |
168 | fallthrough; |
169 | case -ENETRESET: /* Responded, but we seem to have changed address */ |
170 | e->responded = true; |
171 | e->error = error; |
172 | return; |
173 | } |
174 | } |
175 |