xnu-4570.1.46.tar.gz

[apple/xnu.git] / EXTERNAL_HEADERS / corecrypto / cchmac.h

diff --git a/EXTERNAL_HEADERS/corecrypto/cchmac.h b/EXTERNAL_HEADERS/corecrypto/cchmac.h
index c3427eaab4d6e903bf768074523be3d77e8be331..81c1ab835a5cff83249e9ba872c2d5ef2830db9f 100644 (file)
--- a/EXTERNAL_HEADERS/corecrypto/cchmac.h
+++ b/EXTERNAL_HEADERS/corecrypto/cchmac.h
@@ -19,10 +19,14 @@ struct cchmac_ctx {
     uint8_t b[8];
 } CC_ALIGNED(8);
 
+#if CORECRYPTO_USE_TRANSPARENT_UNION
 typedef union {
     struct cchmac_ctx *hdr;
     ccdigest_ctx_t digest;
 } cchmac_ctx_t __attribute__((transparent_union));
+#else
+typedef struct cchmac_ctx* cchmac_ctx_t;
+#endif
 
 #define cchmac_ctx_size(STATE_SIZE, BLOCK_SIZE)  (ccdigest_ctx_size(STATE_SIZE, BLOCK_SIZE) + (STATE_SIZE))
 #define cchmac_di_size(_di_)  (cchmac_ctx_size((_di_)->state_size, (_di_)->block_size))
@@ -35,24 +39,43 @@ typedef union {
 #define cchmac_di_clear(_di_, _name_) cchmac_ctx_clear((_di_)->state_size, (_di_)->block_size, _name_)
 
 /* Return a ccdigest_ctx_t which can be accesed with the macros in ccdigest.h */
+#if CORECRYPTO_USE_TRANSPARENT_UNION
 #define cchmac_digest_ctx(_di_, HC)    (((cchmac_ctx_t)(HC)).digest)
+#else
+#define cchmac_digest_ctx(_di_, HC)    ((ccdigest_ctx_t)(HC))
+#endif
 
 /* Accesors for ostate fields, this is all cchmac_ctx_t adds to the ccdigest_ctx_t. */
+#if CORECRYPTO_USE_TRANSPARENT_UNION
 #define cchmac_ostate(_di_, HC)    ((struct ccdigest_state *)(((cchmac_ctx_t)(HC)).hdr->b + ccdigest_di_size(_di_)))
+#else
+#define cchmac_ostate(_di_, HC)    ((struct ccdigest_state *)(((cchmac_ctx_t)(HC))->b + ccdigest_di_size(_di_)))
+#endif
 #define cchmac_ostate8(_di_, HC)   (ccdigest_u8(cchmac_ostate(_di_, HC)))
 #define cchmac_ostate32(_di_, HC)  (ccdigest_u32(cchmac_ostate(_di_, HC)))
 #define cchmac_ostate64(_di_, HC)  (ccdigest_u64(cchmac_ostate(_di_, HC)))
 #define cchmac_ostateccn(_di_, HC) (ccdigest_ccn(cchmac_ostate(_di_, HC)))
 
 /* Convenience accessors for ccdigest_ctx_t fields. */
+#if CORECRYPTO_USE_TRANSPARENT_UNION
 #define cchmac_istate(_di_, HC)    ccdigest_state(_di_, ((cchmac_ctx_t)(HC)).digest)
+#else
+#define cchmac_istate(_di_, HC)    ccdigest_state(_di_, ((ccdigest_ctx_t)(HC)))
+#endif
 #define cchmac_istate8(_di_, HC)   ccdigest_u8(cchmac_istate(_di_, HC))
 #define cchmac_istate32(_di_, HC)  ccdigest_u32(cchmac_istate(_di_, HC))
 #define cchmac_istate64(_di_, HC)  ccdigest_u64(cchmac_istate(_di_, HC))
 #define cchmac_istateccn(_di_, HC) ccdigest_ccn(cchmac_istate(_di_, HC))
+
+#if CORECRYPTO_USE_TRANSPARENT_UNION
 #define cchmac_data(_di_, HC)      ccdigest_data(_di_, ((cchmac_ctx_t)(HC)).digest)
 #define cchmac_num(_di_, HC)       ccdigest_num(_di_, ((cchmac_ctx_t)(HC)).digest)
 #define cchmac_nbits(_di_, HC)     ccdigest_nbits(_di_, ((cchmac_ctx_t)(HC)).digest)
+#else
+#define cchmac_data(_di_, HC)      ccdigest_data(_di_, ((ccdigest_ctx_t)(HC)))
+#define cchmac_num(_di_, HC)       ccdigest_num(_di_, ((ccdigest_ctx_t)(HC)))
+#define cchmac_nbits(_di_, HC)     ccdigest_nbits(_di_, ((ccdigest_ctx_t)(HC)))
+#endif
 
 void cchmac_init(const struct ccdigest_info *di, cchmac_ctx_t ctx,
                  size_t key_len, const void *key);