1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * Cryptographic API. 3 * Cryptographic API.
4 * 4 *
5 * Copyright (c) 2002 James Morris <jmorris@in 5 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
6 * Copyright (c) 2005 Herbert Xu <herbert@gond 6 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
7 */ 7 */
8 #ifndef _CRYPTO_INTERNAL_H 8 #ifndef _CRYPTO_INTERNAL_H
9 #define _CRYPTO_INTERNAL_H 9 #define _CRYPTO_INTERNAL_H
10 10
11 #include <crypto/algapi.h> 11 #include <crypto/algapi.h>
12 #include <linux/completion.h> 12 #include <linux/completion.h>
13 #include <linux/err.h> <<
14 #include <linux/jump_label.h> <<
15 #include <linux/list.h> 13 #include <linux/list.h>
16 #include <linux/module.h> 14 #include <linux/module.h>
17 #include <linux/notifier.h> 15 #include <linux/notifier.h>
18 #include <linux/numa.h> 16 #include <linux/numa.h>
19 #include <linux/refcount.h> 17 #include <linux/refcount.h>
20 #include <linux/rwsem.h> 18 #include <linux/rwsem.h>
21 #include <linux/scatterlist.h> <<
22 #include <linux/sched.h> 19 #include <linux/sched.h>
23 #include <linux/types.h> 20 #include <linux/types.h>
24 21
25 struct akcipher_request; <<
26 struct crypto_akcipher; <<
27 struct crypto_instance; 22 struct crypto_instance;
28 struct crypto_template; 23 struct crypto_template;
29 24
30 struct crypto_larval { 25 struct crypto_larval {
31 struct crypto_alg alg; 26 struct crypto_alg alg;
32 struct crypto_alg *adult; 27 struct crypto_alg *adult;
33 struct completion completion; 28 struct completion completion;
34 u32 mask; 29 u32 mask;
35 bool test_started; <<
36 }; <<
37 <<
38 struct crypto_akcipher_sync_data { <<
39 struct crypto_akcipher *tfm; <<
40 const void *src; <<
41 void *dst; <<
42 unsigned int slen; <<
43 unsigned int dlen; <<
44 <<
45 struct akcipher_request *req; <<
46 struct crypto_wait cwait; <<
47 struct scatterlist sg; <<
48 u8 *buf; <<
49 }; 30 };
50 31
51 enum { 32 enum {
52 CRYPTOA_UNSPEC, 33 CRYPTOA_UNSPEC,
53 CRYPTOA_ALG, 34 CRYPTOA_ALG,
54 CRYPTOA_TYPE, 35 CRYPTOA_TYPE,
55 __CRYPTOA_MAX, 36 __CRYPTOA_MAX,
56 }; 37 };
57 38
58 #define CRYPTOA_MAX (__CRYPTOA_MAX - 1) 39 #define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
59 40
60 /* Maximum number of (rtattr) parameters for e 41 /* Maximum number of (rtattr) parameters for each template. */
61 #define CRYPTO_MAX_ATTRS 32 42 #define CRYPTO_MAX_ATTRS 32
62 43
63 extern struct list_head crypto_alg_list; 44 extern struct list_head crypto_alg_list;
64 extern struct rw_semaphore crypto_alg_sem; 45 extern struct rw_semaphore crypto_alg_sem;
65 extern struct blocking_notifier_head crypto_ch 46 extern struct blocking_notifier_head crypto_chain;
66 47
67 int alg_test(const char *driver, const char *a <<
68 <<
69 #if !IS_BUILTIN(CONFIG_CRYPTO_ALGAPI) || \ <<
70 IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_T <<
71 static inline bool crypto_boot_test_finished(v <<
72 { <<
73 return true; <<
74 } <<
75 static inline void set_crypto_boot_test_finish <<
76 { <<
77 } <<
78 #else <<
79 DECLARE_STATIC_KEY_FALSE(__crypto_boot_test_fi <<
80 static inline bool crypto_boot_test_finished(v <<
81 { <<
82 return static_branch_likely(&__crypto_ <<
83 } <<
84 static inline void set_crypto_boot_test_finish <<
85 { <<
86 static_branch_enable(&__crypto_boot_te <<
87 } <<
88 #endif /* !IS_BUILTIN(CONFIG_CRYPTO_ALGAPI) || <<
89 * IS_ENABLED(CONFIG_CRYPTO_MANAGER_DIS <<
90 */ <<
91 <<
92 #ifdef CONFIG_PROC_FS 48 #ifdef CONFIG_PROC_FS
93 void __init crypto_init_proc(void); 49 void __init crypto_init_proc(void);
94 void __exit crypto_exit_proc(void); 50 void __exit crypto_exit_proc(void);
95 #else 51 #else
96 static inline void crypto_init_proc(void) 52 static inline void crypto_init_proc(void)
97 { } 53 { }
98 static inline void crypto_exit_proc(void) 54 static inline void crypto_exit_proc(void)
99 { } 55 { }
100 #endif 56 #endif
101 57
102 static inline unsigned int crypto_cipher_ctxsi 58 static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
103 { 59 {
104 return alg->cra_ctxsize; 60 return alg->cra_ctxsize;
105 } 61 }
106 62
107 static inline unsigned int crypto_compress_ctx 63 static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
108 { 64 {
109 return alg->cra_ctxsize; 65 return alg->cra_ctxsize;
110 } 66 }
111 67
112 struct crypto_alg *crypto_mod_get(struct crypt 68 struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
113 struct crypto_alg *crypto_alg_mod_lookup(const 69 struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
114 70
115 struct crypto_larval *crypto_larval_alloc(cons 71 struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
116 void crypto_larval_kill(struct crypto_alg *alg 72 void crypto_larval_kill(struct crypto_alg *alg);
117 void crypto_wait_for_test(struct crypto_larval <<
118 void crypto_alg_tested(const char *name, int e 73 void crypto_alg_tested(const char *name, int err);
119 74
120 void crypto_remove_spawns(struct crypto_alg *a 75 void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
121 struct crypto_alg *n 76 struct crypto_alg *nalg);
122 void crypto_remove_final(struct list_head *lis 77 void crypto_remove_final(struct list_head *list);
123 void crypto_shoot_alg(struct crypto_alg *alg); 78 void crypto_shoot_alg(struct crypto_alg *alg);
124 struct crypto_tfm *__crypto_alloc_tfmgfp(struc <<
125 u32 m <<
126 struct crypto_tfm *__crypto_alloc_tfm(struct c 79 struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
127 u32 mask 80 u32 mask);
128 void *crypto_create_tfm_node(struct crypto_alg 81 void *crypto_create_tfm_node(struct crypto_alg *alg,
129 const struct crypto_ty 82 const struct crypto_type *frontend, int node);
130 void *crypto_clone_tfm(const struct crypto_typ <<
131 struct crypto_tfm *otfm <<
132 <<
133 int crypto_akcipher_sync_prep(struct crypto_ak <<
134 int crypto_akcipher_sync_post(struct crypto_ak <<
135 int crypto_init_akcipher_ops_sig(struct crypto <<
136 83
137 static inline void *crypto_create_tfm(struct c 84 static inline void *crypto_create_tfm(struct crypto_alg *alg,
138 const struct crypto_ty 85 const struct crypto_type *frontend)
139 { 86 {
140 return crypto_create_tfm_node(alg, fro 87 return crypto_create_tfm_node(alg, frontend, NUMA_NO_NODE);
141 } 88 }
142 89
143 struct crypto_alg *crypto_find_alg(const char 90 struct crypto_alg *crypto_find_alg(const char *alg_name,
144 const struc 91 const struct crypto_type *frontend,
145 u32 type, u 92 u32 type, u32 mask);
146 93
147 void *crypto_alloc_tfm_node(const char *alg_na 94 void *crypto_alloc_tfm_node(const char *alg_name,
148 const struct crypto_typ 95 const struct crypto_type *frontend, u32 type, u32 mask,
149 int node); 96 int node);
150 97
151 static inline void *crypto_alloc_tfm(const cha 98 static inline void *crypto_alloc_tfm(const char *alg_name,
152 const struct crypto_typ 99 const struct crypto_type *frontend, u32 type, u32 mask)
153 { 100 {
154 return crypto_alloc_tfm_node(alg_name, 101 return crypto_alloc_tfm_node(alg_name, frontend, type, mask, NUMA_NO_NODE);
155 } 102 }
156 103
157 int crypto_probing_notify(unsigned long val, v 104 int crypto_probing_notify(unsigned long val, void *v);
158 105
159 unsigned int crypto_alg_extsize(struct crypto_ 106 unsigned int crypto_alg_extsize(struct crypto_alg *alg);
160 107
161 int crypto_type_has_alg(const char *name, cons 108 int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
162 u32 type, u32 mask); 109 u32 type, u32 mask);
163 110
164 static inline struct crypto_alg *crypto_alg_ge 111 static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
165 { 112 {
166 refcount_inc(&alg->cra_refcnt); 113 refcount_inc(&alg->cra_refcnt);
167 return alg; 114 return alg;
168 } 115 }
169 116
170 static inline void crypto_alg_put(struct crypt 117 static inline void crypto_alg_put(struct crypto_alg *alg)
171 { 118 {
172 if (refcount_dec_and_test(&alg->cra_re 119 if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
173 alg->cra_destroy(alg); 120 alg->cra_destroy(alg);
174 } 121 }
175 122
176 static inline int crypto_tmpl_get(struct crypt 123 static inline int crypto_tmpl_get(struct crypto_template *tmpl)
177 { 124 {
178 return try_module_get(tmpl->module); 125 return try_module_get(tmpl->module);
179 } 126 }
180 127
181 static inline void crypto_tmpl_put(struct cryp 128 static inline void crypto_tmpl_put(struct crypto_template *tmpl)
182 { 129 {
183 module_put(tmpl->module); 130 module_put(tmpl->module);
184 } 131 }
185 132
186 static inline int crypto_is_larval(struct cryp 133 static inline int crypto_is_larval(struct crypto_alg *alg)
187 { 134 {
188 return alg->cra_flags & CRYPTO_ALG_LAR 135 return alg->cra_flags & CRYPTO_ALG_LARVAL;
189 } 136 }
190 137
191 static inline int crypto_is_dead(struct crypto 138 static inline int crypto_is_dead(struct crypto_alg *alg)
192 { 139 {
193 return alg->cra_flags & CRYPTO_ALG_DEA 140 return alg->cra_flags & CRYPTO_ALG_DEAD;
194 } 141 }
195 142
196 static inline int crypto_is_moribund(struct cr 143 static inline int crypto_is_moribund(struct crypto_alg *alg)
197 { 144 {
198 return alg->cra_flags & (CRYPTO_ALG_DE 145 return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
199 } 146 }
200 147
201 static inline void crypto_notify(unsigned long 148 static inline void crypto_notify(unsigned long val, void *v)
202 { 149 {
203 blocking_notifier_call_chain(&crypto_c 150 blocking_notifier_call_chain(&crypto_chain, val, v);
204 } 151 }
205 152
206 static inline void crypto_yield(u32 flags) 153 static inline void crypto_yield(u32 flags)
207 { 154 {
208 if (flags & CRYPTO_TFM_REQ_MAY_SLEEP) 155 if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
209 cond_resched(); 156 cond_resched();
210 } <<
211 <<
212 static inline int crypto_is_test_larval(struct <<
213 { <<
214 return larval->alg.cra_driver_name[0]; <<
215 } <<
216 <<
217 static inline struct crypto_tfm *crypto_tfm_ge <<
218 { <<
219 return refcount_inc_not_zero(&tfm->ref <<
220 } 157 }
221 158
222 #endif /* _CRYPTO_INTERNAL_H */ 159 #endif /* _CRYPTO_INTERNAL_H */
223 160
224 161
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