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Commit | Line | Data |
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62867571 | 1 | /* |
28428130 | 2 | * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved. |
71a04cfc | 3 | * |
0e9725bc | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
71a04cfc AG |
8 | */ |
9 | ||
10 | #include <openssl/crypto.h> | |
5f8dd0f8 | 11 | #include "internal/cryptlib.h" |
71a04cfc AG |
12 | |
13 | #if !defined(OPENSSL_THREADS) || defined(CRYPTO_TDEBUG) | |
14 | ||
84952925 DMSP |
15 | # if defined(OPENSSL_SYS_UNIX) |
16 | # include <sys/types.h> | |
17 | # include <unistd.h> | |
18 | # endif | |
19 | ||
71a04cfc AG |
20 | CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void) |
21 | { | |
7de2b9c4 RS |
22 | CRYPTO_RWLOCK *lock; |
23 | ||
24 | if ((lock = OPENSSL_zalloc(sizeof(unsigned int))) == NULL) { | |
25 | /* Don't set error, to avoid recursion blowup. */ | |
71a04cfc | 26 | return NULL; |
7de2b9c4 | 27 | } |
71a04cfc AG |
28 | |
29 | *(unsigned int *)lock = 1; | |
30 | ||
31 | return lock; | |
32 | } | |
33 | ||
34 | int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock) | |
35 | { | |
fb7621cb MC |
36 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
37 | return 0; | |
71a04cfc AG |
38 | return 1; |
39 | } | |
40 | ||
41 | int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock) | |
42 | { | |
fb7621cb MC |
43 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
44 | return 0; | |
71a04cfc AG |
45 | return 1; |
46 | } | |
47 | ||
48 | int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock) | |
49 | { | |
fb7621cb MC |
50 | if (!ossl_assert(*(unsigned int *)lock == 1)) |
51 | return 0; | |
71a04cfc AG |
52 | return 1; |
53 | } | |
54 | ||
55 | void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) { | |
56 | if (lock == NULL) | |
57 | return; | |
58 | ||
59 | *(unsigned int *)lock = 0; | |
60 | OPENSSL_free(lock); | |
61 | ||
62 | return; | |
63 | } | |
64 | ||
65 | int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void)) | |
66 | { | |
67 | if (*once != 0) | |
68 | return 1; | |
69 | ||
70 | init(); | |
71 | *once = 1; | |
72 | ||
73 | return 1; | |
74 | } | |
75 | ||
76 | #define OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX 256 | |
77 | ||
78 | static void *thread_local_storage[OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX]; | |
79 | ||
80 | int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *)) | |
81 | { | |
82 | static unsigned int thread_local_key = 0; | |
83 | ||
84 | if (thread_local_key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
85 | return 0; | |
86 | ||
87 | *key = thread_local_key++; | |
88 | ||
89 | thread_local_storage[*key] = NULL; | |
90 | ||
91 | return 1; | |
92 | } | |
93 | ||
94 | void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key) | |
95 | { | |
96 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
97 | return NULL; | |
98 | ||
99 | return thread_local_storage[*key]; | |
100 | } | |
101 | ||
102 | int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val) | |
103 | { | |
104 | if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX) | |
105 | return 0; | |
106 | ||
107 | thread_local_storage[*key] = val; | |
108 | ||
109 | return 1; | |
110 | } | |
111 | ||
112 | int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key) | |
113 | { | |
114 | *key = OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX + 1; | |
115 | return 1; | |
116 | } | |
117 | ||
118 | CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void) | |
119 | { | |
120 | return 0; | |
121 | } | |
122 | ||
123 | int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b) | |
124 | { | |
125 | return (a == b); | |
126 | } | |
127 | ||
128 | int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock) | |
129 | { | |
130 | *val += amount; | |
131 | *ret = *val; | |
132 | ||
133 | return 1; | |
134 | } | |
135 | ||
2915fe19 RS |
136 | int openssl_init_fork_handlers(void) |
137 | { | |
138 | return 0; | |
139 | } | |
140 | ||
84952925 DMSP |
141 | int openssl_get_fork_id(void) |
142 | { | |
143 | # if defined(OPENSSL_SYS_UNIX) | |
144 | return getpid(); | |
145 | # else | |
146 | return 0; | |
147 | # endif | |
148 | } | |
71a04cfc | 149 | #endif |