Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * AEAD: Authenticated Encryption with Associated Data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2007-2015 Herbert Xu <herbert@gondor.apana.org.au>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #ifndef _CRYPTO_INTERNAL_AEAD_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #define _CRYPTO_INTERNAL_AEAD_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <crypto/aead.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <crypto/algapi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/stddef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) struct rtattr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) struct aead_instance {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	void (*free)(struct aead_instance *inst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 		struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 			char head[offsetof(struct aead_alg, base)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 			struct crypto_instance base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 		} s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 		struct aead_alg alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) struct crypto_aead_spawn {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	struct crypto_spawn base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) struct aead_queue {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct crypto_queue base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) static inline void *crypto_aead_ctx(struct crypto_aead *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	return crypto_tfm_ctx(&tfm->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) static inline struct crypto_instance *aead_crypto_instance(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	struct aead_instance *inst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	return container_of(&inst->alg.base, struct crypto_instance, alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) static inline struct aead_instance *aead_instance(struct crypto_instance *inst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	return container_of(&inst->alg, struct aead_instance, alg.base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) static inline struct aead_instance *aead_alg_instance(struct crypto_aead *aead)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	return aead_instance(crypto_tfm_alg_instance(&aead->base));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) static inline void *aead_instance_ctx(struct aead_instance *inst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	return crypto_instance_ctx(aead_crypto_instance(inst));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) static inline void *aead_request_ctx(struct aead_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	return req->__ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) static inline void aead_request_complete(struct aead_request *req, int err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	req->base.complete(&req->base, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) static inline u32 aead_request_flags(struct aead_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	return req->base.flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) static inline struct aead_request *aead_request_cast(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	struct crypto_async_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	return container_of(req, struct aead_request, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) int crypto_grab_aead(struct crypto_aead_spawn *spawn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		     struct crypto_instance *inst,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		     const char *name, u32 type, u32 mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	crypto_drop_spawn(&spawn->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) static inline struct aead_alg *crypto_spawn_aead_alg(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	struct crypto_aead_spawn *spawn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	return container_of(spawn->base.alg, struct aead_alg, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) static inline struct crypto_aead *crypto_spawn_aead(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	struct crypto_aead_spawn *spawn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	return crypto_spawn_tfm2(&spawn->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 					   unsigned int reqsize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	aead->reqsize = reqsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) static inline void aead_init_queue(struct aead_queue *queue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 				   unsigned int max_qlen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	crypto_init_queue(&queue->base, max_qlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static inline int aead_enqueue_request(struct aead_queue *queue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 				       struct aead_request *request)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	return crypto_enqueue_request(&queue->base, &request->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static inline struct aead_request *aead_dequeue_request(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	struct aead_queue *queue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	struct crypto_async_request *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	req = crypto_dequeue_request(&queue->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	return req ? container_of(req, struct aead_request, base) : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static inline struct aead_request *aead_get_backlog(struct aead_queue *queue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	struct crypto_async_request *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	req = crypto_get_backlog(&queue->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	return req ? container_of(req, struct aead_request, base) : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static inline unsigned int crypto_aead_alg_chunksize(struct aead_alg *alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	return alg->chunksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)  * crypto_aead_chunksize() - obtain chunk size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)  * @tfm: cipher handle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)  * The block size is set to one for ciphers such as CCM.  However,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)  * you still need to provide incremental updates in multiples of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)  * the underlying block size as the IV does not have sub-block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)  * granularity.  This is known in this API as the chunk size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)  * Return: chunk size in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) static inline unsigned int crypto_aead_chunksize(struct crypto_aead *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	return crypto_aead_alg_chunksize(crypto_aead_alg(tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) int crypto_register_aead(struct aead_alg *alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) void crypto_unregister_aead(struct aead_alg *alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) int crypto_register_aeads(struct aead_alg *algs, int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) void crypto_unregister_aeads(struct aead_alg *algs, int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int aead_register_instance(struct crypto_template *tmpl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			   struct aead_instance *inst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) #endif	/* _CRYPTO_INTERNAL_AEAD_H */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)