misc.c 4.8 KB

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