[331] | 1 | /*
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| 2 | * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <openssl/crypto.h>
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| 11 |
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| 12 | #if !defined(OPENSSL_THREADS) || defined(CRYPTO_TDEBUG)
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| 13 |
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| 14 | CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
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| 15 | {
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| 16 | CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(unsigned int));
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| 17 | if (lock == NULL)
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| 18 | return NULL;
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| 19 |
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| 20 | *(unsigned int *)lock = 1;
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| 21 |
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| 22 | return lock;
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| 23 | }
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| 24 |
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| 25 | int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
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| 26 | {
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| 27 | OPENSSL_assert(*(unsigned int *)lock == 1);
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| 28 | return 1;
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| 29 | }
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| 30 |
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| 31 | int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
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| 32 | {
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| 33 | OPENSSL_assert(*(unsigned int *)lock == 1);
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| 34 | return 1;
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| 35 | }
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| 36 |
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| 37 | int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
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| 38 | {
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| 39 | OPENSSL_assert(*(unsigned int *)lock == 1);
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| 40 | return 1;
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| 41 | }
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| 42 |
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| 43 | void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) {
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| 44 | if (lock == NULL)
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| 45 | return;
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| 46 |
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| 47 | *(unsigned int *)lock = 0;
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| 48 | OPENSSL_free(lock);
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| 49 |
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| 50 | return;
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| 51 | }
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| 52 |
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| 53 | int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
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| 54 | {
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| 55 | if (*once != 0)
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| 56 | return 1;
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| 57 |
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| 58 | init();
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| 59 | *once = 1;
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| 60 |
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| 61 | return 1;
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| 62 | }
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| 63 |
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| 64 | #define OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX 256
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| 65 |
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| 66 | static void *thread_local_storage[OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX];
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| 67 |
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| 68 | int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))
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| 69 | {
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| 70 | static unsigned int thread_local_key = 0;
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| 71 |
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| 72 | if (thread_local_key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
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| 73 | return 0;
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| 74 |
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| 75 | *key = thread_local_key++;
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| 76 |
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| 77 | thread_local_storage[*key] = NULL;
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| 78 |
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| 79 | return 1;
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| 80 | }
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| 81 |
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| 82 | void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)
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| 83 | {
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| 84 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
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| 85 | return NULL;
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| 86 |
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| 87 | return thread_local_storage[*key];
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| 88 | }
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| 89 |
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| 90 | int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)
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| 91 | {
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| 92 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
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| 93 | return 0;
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| 94 |
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| 95 | thread_local_storage[*key] = val;
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| 96 |
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| 97 | return 1;
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| 98 | }
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| 99 |
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| 100 | int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key)
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| 101 | {
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| 102 | *key = OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX + 1;
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| 103 | return 1;
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| 104 | }
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| 105 |
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| 106 | CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void)
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| 107 | {
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| 108 | return 0;
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| 109 | }
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| 110 |
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| 111 | int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
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| 112 | {
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| 113 | return (a == b);
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| 114 | }
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| 115 |
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| 116 | int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
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| 117 | {
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| 118 | *val += amount;
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| 119 | *ret = *val;
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| 120 |
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| 121 | return 1;
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| 122 | }
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| 123 |
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| 124 | #endif
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