rte_crypto_sym.h

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#ifndef _RTE_CRYPTO_SYM_H_
#define _RTE_CRYPTO_SYM_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <string.h>

#include <rte_mbuf.h>
#include <rte_memory.h>
#include <rte_mempool.h>


enum rte_crypto_cipher_algorithm {
        RTE_CRYPTO_CIPHER_NULL = 1,
        RTE_CRYPTO_CIPHER_3DES_CBC,
        RTE_CRYPTO_CIPHER_3DES_CTR,
        RTE_CRYPTO_CIPHER_3DES_ECB,
        RTE_CRYPTO_CIPHER_AES_CBC,
        RTE_CRYPTO_CIPHER_AES_CCM,
        RTE_CRYPTO_CIPHER_AES_CTR,
        RTE_CRYPTO_CIPHER_AES_ECB,
        RTE_CRYPTO_CIPHER_AES_F8,
        RTE_CRYPTO_CIPHER_AES_GCM,
        RTE_CRYPTO_CIPHER_AES_XTS,
        RTE_CRYPTO_CIPHER_ARC4,
        RTE_CRYPTO_CIPHER_KASUMI_F8,
        RTE_CRYPTO_CIPHER_SNOW3G_UEA2,
        RTE_CRYPTO_CIPHER_ZUC_EEA3,
        RTE_CRYPTO_CIPHER_LIST_END
};

enum rte_crypto_cipher_operation {
        RTE_CRYPTO_CIPHER_OP_ENCRYPT,
        RTE_CRYPTO_CIPHER_OP_DECRYPT
};

struct rte_crypto_cipher_xform {
        enum rte_crypto_cipher_operation op;
        enum rte_crypto_cipher_algorithm algo;
        struct {
                uint8_t *data;  
                size_t length;  
        } key;
};

enum rte_crypto_auth_algorithm {
        RTE_CRYPTO_AUTH_NULL = 1,
        RTE_CRYPTO_AUTH_AES_CBC_MAC,
        RTE_CRYPTO_AUTH_AES_CCM,
        RTE_CRYPTO_AUTH_AES_CMAC,
        RTE_CRYPTO_AUTH_AES_GCM,
        RTE_CRYPTO_AUTH_AES_GMAC,
        RTE_CRYPTO_AUTH_AES_XCBC_MAC,
        RTE_CRYPTO_AUTH_KASUMI_F9,
        RTE_CRYPTO_AUTH_MD5,
        RTE_CRYPTO_AUTH_MD5_HMAC,
        RTE_CRYPTO_AUTH_SHA1,
        RTE_CRYPTO_AUTH_SHA1_HMAC,
        RTE_CRYPTO_AUTH_SHA224,
        RTE_CRYPTO_AUTH_SHA224_HMAC,
        RTE_CRYPTO_AUTH_SHA256,
        RTE_CRYPTO_AUTH_SHA256_HMAC,
        RTE_CRYPTO_AUTH_SHA384,
        RTE_CRYPTO_AUTH_SHA384_HMAC,
        RTE_CRYPTO_AUTH_SHA512,
        RTE_CRYPTO_AUTH_SHA512_HMAC,
        RTE_CRYPTO_AUTH_SNOW3G_UIA2,
        RTE_CRYPTO_AUTH_ZUC_EIA3,
        RTE_CRYPTO_AUTH_LIST_END
};

enum rte_crypto_auth_operation {
        RTE_CRYPTO_AUTH_OP_VERIFY,      
        RTE_CRYPTO_AUTH_OP_GENERATE     
};

struct rte_crypto_auth_xform {
        enum rte_crypto_auth_operation op;
        enum rte_crypto_auth_algorithm algo;
        struct {
                uint8_t *data;  
                size_t length;  
        } key;
        uint32_t digest_length;
        uint32_t add_auth_data_length;
};

enum rte_crypto_sym_xform_type {
        RTE_CRYPTO_SYM_XFORM_NOT_SPECIFIED = 0, 
        RTE_CRYPTO_SYM_XFORM_AUTH,              
        RTE_CRYPTO_SYM_XFORM_CIPHER             
};

struct rte_crypto_sym_xform {
        struct rte_crypto_sym_xform *next;
        enum rte_crypto_sym_xform_type type
        ; 
        union {
                struct rte_crypto_auth_xform auth;
                struct rte_crypto_cipher_xform cipher;
        };
};

enum rte_crypto_sym_op_sess_type {
        RTE_CRYPTO_SYM_OP_WITH_SESSION, 
        RTE_CRYPTO_SYM_OP_SESSIONLESS   
};


struct rte_cryptodev_sym_session;

struct rte_crypto_sym_op {
        struct rte_mbuf *m_src; 
        struct rte_mbuf *m_dst; 
        enum rte_crypto_sym_op_sess_type sess_type;

        union {
                struct rte_cryptodev_sym_session *session;
                struct rte_crypto_sym_xform *xform;
        };

        struct {
                struct {
                        uint32_t offset;
                        uint32_t length;
                } data; 
                struct {
                        uint8_t *data;
                        phys_addr_t phys_addr;
                        uint16_t length;
                } iv;   
        } cipher;

        struct {
                struct {
                        uint32_t offset;
                        uint32_t length;
                } data; 
                struct {
                        uint8_t *data;
                        phys_addr_t phys_addr;
                        uint16_t length;
                } digest; 
                struct {
                        uint8_t *data;
                        phys_addr_t phys_addr;  
                        uint16_t length;        
                } aad;
        } auth;
} __rte_cache_aligned;


static inline void
__rte_crypto_sym_op_reset(struct rte_crypto_sym_op *op)
{
        memset(op, 0, sizeof(*op));

        op->sess_type = RTE_CRYPTO_SYM_OP_SESSIONLESS;
}


static inline struct rte_crypto_sym_xform *
__rte_crypto_sym_op_sym_xforms_alloc(struct rte_crypto_sym_op *sym_op,
                void *priv_data, uint8_t nb_xforms)
{
        struct rte_crypto_sym_xform *xform;

        sym_op->xform = xform = (struct rte_crypto_sym_xform *)priv_data;

        do {
                xform->type = RTE_CRYPTO_SYM_XFORM_NOT_SPECIFIED;
                xform = xform->next = --nb_xforms > 0 ? xform + 1 : NULL;
        } while (xform);

        return sym_op->xform;
}


static inline int
__rte_crypto_sym_op_attach_sym_session(struct rte_crypto_sym_op *sym_op,
                struct rte_cryptodev_sym_session *sess)
{
        sym_op->session = sess;
        sym_op->sess_type = RTE_CRYPTO_SYM_OP_WITH_SESSION;

        return 0;
}


#ifdef __cplusplus
}
#endif

#endif /* _RTE_CRYPTO_SYM_H_ */