compat.c 3.2 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /* 32-bit compatibility syscall for 64-bit systems
  3. *
  4. * Copyright (C) 2004-5 Red Hat, Inc. All Rights Reserved.
  5. * Written by David Howells (dhowells@redhat.com)
  6. */
  7. #include <linux/syscalls.h>
  8. #include <linux/keyctl.h>
  9. #include <linux/compat.h>
  10. #include <linux/slab.h>
  11. #include "internal.h"
  12. /*
  13. * The key control system call, 32-bit compatibility version for 64-bit archs
  14. */
  15. COMPAT_SYSCALL_DEFINE5(keyctl, u32, option,
  16. u32, arg2, u32, arg3, u32, arg4, u32, arg5)
  17. {
  18. switch (option) {
  19. case KEYCTL_GET_KEYRING_ID:
  20. return keyctl_get_keyring_ID(arg2, arg3);
  21. case KEYCTL_JOIN_SESSION_KEYRING:
  22. return keyctl_join_session_keyring(compat_ptr(arg2));
  23. case KEYCTL_UPDATE:
  24. return keyctl_update_key(arg2, compat_ptr(arg3), arg4);
  25. case KEYCTL_REVOKE:
  26. return keyctl_revoke_key(arg2);
  27. case KEYCTL_DESCRIBE:
  28. return keyctl_describe_key(arg2, compat_ptr(arg3), arg4);
  29. case KEYCTL_CLEAR:
  30. return keyctl_keyring_clear(arg2);
  31. case KEYCTL_LINK:
  32. return keyctl_keyring_link(arg2, arg3);
  33. case KEYCTL_UNLINK:
  34. return keyctl_keyring_unlink(arg2, arg3);
  35. case KEYCTL_SEARCH:
  36. return keyctl_keyring_search(arg2, compat_ptr(arg3),
  37. compat_ptr(arg4), arg5);
  38. case KEYCTL_READ:
  39. return keyctl_read_key(arg2, compat_ptr(arg3), arg4);
  40. case KEYCTL_CHOWN:
  41. return keyctl_chown_key(arg2, arg3, arg4);
  42. case KEYCTL_SETPERM:
  43. return keyctl_setperm_key(arg2, arg3);
  44. case KEYCTL_INSTANTIATE:
  45. return keyctl_instantiate_key(arg2, compat_ptr(arg3), arg4,
  46. arg5);
  47. case KEYCTL_NEGATE:
  48. return keyctl_negate_key(arg2, arg3, arg4);
  49. case KEYCTL_SET_REQKEY_KEYRING:
  50. return keyctl_set_reqkey_keyring(arg2);
  51. case KEYCTL_SET_TIMEOUT:
  52. return keyctl_set_timeout(arg2, arg3);
  53. case KEYCTL_ASSUME_AUTHORITY:
  54. return keyctl_assume_authority(arg2);
  55. case KEYCTL_GET_SECURITY:
  56. return keyctl_get_security(arg2, compat_ptr(arg3), arg4);
  57. case KEYCTL_SESSION_TO_PARENT:
  58. return keyctl_session_to_parent();
  59. case KEYCTL_REJECT:
  60. return keyctl_reject_key(arg2, arg3, arg4, arg5);
  61. case KEYCTL_INSTANTIATE_IOV:
  62. return keyctl_instantiate_key_iov(arg2, compat_ptr(arg3), arg4,
  63. arg5);
  64. case KEYCTL_INVALIDATE:
  65. return keyctl_invalidate_key(arg2);
  66. case KEYCTL_GET_PERSISTENT:
  67. return keyctl_get_persistent(arg2, arg3);
  68. case KEYCTL_DH_COMPUTE:
  69. return compat_keyctl_dh_compute(compat_ptr(arg2),
  70. compat_ptr(arg3),
  71. arg4, compat_ptr(arg5));
  72. case KEYCTL_RESTRICT_KEYRING:
  73. return keyctl_restrict_keyring(arg2, compat_ptr(arg3),
  74. compat_ptr(arg4));
  75. case KEYCTL_PKEY_QUERY:
  76. if (arg3 != 0)
  77. return -EINVAL;
  78. return keyctl_pkey_query(arg2,
  79. compat_ptr(arg4),
  80. compat_ptr(arg5));
  81. case KEYCTL_PKEY_ENCRYPT:
  82. case KEYCTL_PKEY_DECRYPT:
  83. case KEYCTL_PKEY_SIGN:
  84. return keyctl_pkey_e_d_s(option,
  85. compat_ptr(arg2), compat_ptr(arg3),
  86. compat_ptr(arg4), compat_ptr(arg5));
  87. case KEYCTL_PKEY_VERIFY:
  88. return keyctl_pkey_verify(compat_ptr(arg2), compat_ptr(arg3),
  89. compat_ptr(arg4), compat_ptr(arg5));
  90. case KEYCTL_MOVE:
  91. return keyctl_keyring_move(arg2, arg3, arg4, arg5);
  92. case KEYCTL_CAPABILITIES:
  93. return keyctl_capabilities(compat_ptr(arg2), arg3);
  94. case KEYCTL_WATCH_KEY:
  95. return keyctl_watch_key(arg2, arg3, arg4);
  96. default:
  97. return -EOPNOTSUPP;
  98. }
  99. }