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      1 /*
      2  * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License 2.0 (the "License").  You may not use
      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
      8  */
      9 
     10 #include <openssl/aes.h>
     11 #include "prov/ciphercommon.h"
     12 #include "prov/ciphercommon_gcm.h"
     13 #include "crypto/aes_platform.h"
     14 
     15 typedef struct prov_aes_gcm_ctx_st {
     16     PROV_GCM_CTX base;          /* must be first entry in struct */
     17     union {
     18         OSSL_UNION_ALIGN;
     19         AES_KEY ks;
     20     } ks;                       /* AES key schedule to use */
     21 
     22     /* Platform specific data */
     23     union {
     24         int dummy;
     25 #if defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
     26         struct {
     27             union {
     28                 OSSL_UNION_ALIGN;
     29                 S390X_KMA_PARAMS kma;
     30             } param;
     31             unsigned int fc;
     32             unsigned int hsflag;    /* hash subkey set flag */
     33             unsigned char ares[16];
     34             unsigned char mres[16];
     35             unsigned char kres[16];
     36             int areslen;
     37             int mreslen;
     38             int kreslen;
     39             int res;
     40         } s390x;
     41 #endif /* defined(OPENSSL_CPUID_OBJ) && defined(__s390__) */
     42     } plat;
     43 } PROV_AES_GCM_CTX;
     44 
     45 const PROV_GCM_HW *ossl_prov_aes_hw_gcm(size_t keybits);
     46