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71 lines
2.7 KiB
71 lines
2.7 KiB
/* |
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* Copyright (C) 2017 The Android Open Source Project |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <keyutils.h> |
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#include <stdarg.h> |
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#include <sys/syscall.h> |
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#include <unistd.h> |
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// Deliberately not exposed. Callers should use the typed APIs instead. |
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static long keyctl(int cmd, ...) { |
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va_list va; |
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va_start(va, cmd); |
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unsigned long arg2 = va_arg(va, unsigned long); |
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unsigned long arg3 = va_arg(va, unsigned long); |
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unsigned long arg4 = va_arg(va, unsigned long); |
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unsigned long arg5 = va_arg(va, unsigned long); |
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va_end(va); |
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return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5); |
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} |
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key_serial_t add_key(const char* type, const char* description, const void* payload, |
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size_t payload_length, key_serial_t ring_id) { |
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return syscall(__NR_add_key, type, description, payload, payload_length, ring_id); |
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} |
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key_serial_t keyctl_get_keyring_ID(key_serial_t id, int create) { |
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return keyctl(KEYCTL_GET_KEYRING_ID, id, create); |
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} |
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long keyctl_revoke(key_serial_t id) { |
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return keyctl(KEYCTL_REVOKE, id); |
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} |
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long keyctl_search(key_serial_t ring_id, const char* type, const char* description, |
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key_serial_t dest_ring_id) { |
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return keyctl(KEYCTL_SEARCH, ring_id, type, description, dest_ring_id); |
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} |
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long keyctl_setperm(key_serial_t id, int permissions) { |
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return keyctl(KEYCTL_SETPERM, id, permissions); |
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} |
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long keyctl_unlink(key_serial_t key, key_serial_t keyring) { |
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return keyctl(KEYCTL_UNLINK, key, keyring); |
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}
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