| 1 |
|
| 2 | |
| 3 | * Public Key Signature Algorithm
|
| 4 | *
|
| 5 | * Copyright (c) 2023 Herbert Xu <[email protected]>
|
| 6 |
|
| 7 | #ifndef _CRYPTO_INTERNAL_SIG_H
|
| 8 | #define _CRYPTO_INTERNAL_SIG_H
|
| 9 |
|
| 10 | #include <crypto/algapi.h>
|
| 11 | #include <crypto/sig.h>
|
| 12 |
|
| 13 | struct sig_instance {
|
| 14 | void (*free)(struct sig_instance *inst);
|
| 15 | union {
|
| 16 | struct {
|
| 17 | char head[offsetof(struct sig_alg, base)];
|
| 18 | struct crypto_instance base;
|
| 19 | };
|
| 20 | struct sig_alg alg;
|
| 21 | };
|
| 22 | };
|
| 23 |
|
| 24 | struct crypto_sig_spawn {
|
| 25 | struct crypto_spawn base;
|
| 26 | };
|
| 27 |
|
| 28 | static inline void *crypto_sig_ctx(struct crypto_sig *tfm)
|
| 29 | {
|
| 30 | return crypto_tfm_ctx(&tfm->base);
|
| 31 | }
|
| 32 |
|
| 33 | |
| 34 | * crypto_register_sig() -- Register public key signature algorithm
|
| 35 | *
|
| 36 | * Function registers an implementation of a public key signature algorithm
|
| 37 | *
|
| 38 | * @alg: algorithm definition
|
| 39 | *
|
| 40 | * Return: zero on success; error code in case of error
|
| 41 |
|
| 42 | int crypto_register_sig(struct sig_alg *alg);
|
| 43 |
|
| 44 | |
| 45 | * crypto_unregister_sig() -- Unregister public key signature algorithm
|
| 46 | *
|
| 47 | * Function unregisters an implementation of a public key signature algorithm
|
| 48 | *
|
| 49 | * @alg: algorithm definition
|
| 50 |
|
| 51 | void crypto_unregister_sig(struct sig_alg *alg);
|
| 52 |
|
| 53 | int sig_register_instance(struct crypto_template *tmpl,
|
| 54 | struct sig_instance *inst);
|
| 55 |
|
| 56 | static inline struct sig_instance *sig_instance(struct crypto_instance *inst)
|
| 57 | {
|
| 58 | return container_of(&inst->alg, struct sig_instance, alg.base);
|
| 59 | }
|
| 60 |
|
| 61 | static inline struct sig_instance *sig_alg_instance(struct crypto_sig *tfm)
|
| 62 | {
|
| 63 | return sig_instance(crypto_tfm_alg_instance(&tfm->base));
|
| 64 | }
|
| 65 |
|
| 66 | static inline struct crypto_instance *sig_crypto_instance(struct sig_instance
|
| 67 | *inst)
|
| 68 | {
|
| 69 | return container_of(&inst->alg.base, struct crypto_instance, alg);
|
| 70 | }
|
| 71 |
|
| 72 | static inline void *sig_instance_ctx(struct sig_instance *inst)
|
| 73 | {
|
| 74 | return crypto_instance_ctx(sig_crypto_instance(inst));
|
| 75 | }
|
| 76 |
|
| 77 | int crypto_grab_sig(struct crypto_sig_spawn *spawn,
|
| 78 | struct crypto_instance *inst,
|
| 79 | const char *name, u32 type, u32 mask);
|
| 80 |
|
| 81 | static inline struct crypto_sig *crypto_spawn_sig(struct crypto_sig_spawn
|
| 82 | *spawn)
|
| 83 | {
|
| 84 | return crypto_spawn_tfm2(&spawn->base);
|
| 85 | }
|
| 86 |
|
| 87 | static inline void crypto_drop_sig(struct crypto_sig_spawn *spawn)
|
| 88 | {
|
| 89 | crypto_drop_spawn(&spawn->base);
|
| 90 | }
|
| 91 |
|
| 92 | static inline struct sig_alg *crypto_spawn_sig_alg(struct crypto_sig_spawn
|
| 93 | *spawn)
|
| 94 | {
|
| 95 | return container_of(spawn->base.alg, struct sig_alg, base);
|
| 96 | }
|
| 97 | #endif
|