xnu-6153.11.26.tar.gz

[apple/xnu.git] / libkern / crypto / corecrypto_sha1.c

diff --git a/libkern/crypto/corecrypto_sha1.c b/libkern/crypto/corecrypto_sha1.c
index 1513287da22dea91fd00c7e2b3243b19c749e2df..3b2b57cca803e08eeb101ac77474ac676b1467cc 100644 (file)
--- a/libkern/crypto/corecrypto_sha1.c
+++ b/libkern/crypto/corecrypto_sha1.c
@@ -1,79 +1,87 @@
-
 #include <libkern/crypto/crypto_internal.h>
 #include <libkern/crypto/sha1.h>
 #include <kern/debug.h>
 #include <corecrypto/ccdigest.h>
 
 
-static uint64_t getCount(SHA1_CTX *ctx)
+static uint64_t
+getCount(SHA1_CTX *ctx)
 {
        return ctx->c.b64[0];
 }
 
-static void setCount(SHA1_CTX *ctx, uint64_t count)
+static void
+setCount(SHA1_CTX *ctx, uint64_t count)
 {
-       ctx->c.b64[0]=count;
+       ctx->c.b64[0] = count;
 }
 
 /* Copy a ccdigest ctx into a legacy SHA1 context */
-static void DiToSHA1(const struct ccdigest_info *di, struct ccdigest_ctx *di_ctx, SHA1_CTX *sha1_ctx)
+static void
+DiToSHA1(const struct ccdigest_info *di, struct ccdigest_ctx *di_ctx, SHA1_CTX *sha1_ctx)
 {
-       setCount(sha1_ctx, ccdigest_nbits(di, di_ctx)/8+ccdigest_num(di, di_ctx));
+       setCount(sha1_ctx, ccdigest_nbits(di, di_ctx) / 8 + ccdigest_num(di, di_ctx));
        memcpy(sha1_ctx->m.b8, ccdigest_data(di, di_ctx), di->block_size);
        memcpy(sha1_ctx->h.b8, ccdigest_state_ccn(di, di_ctx), di->state_size);
 }
 
 /* Copy a legacy SHA1 context into a ccdigest ctx  */
-static void SHA1ToDi(const struct ccdigest_info *di, SHA1_CTX *sha1_ctx, struct ccdigest_ctx *di_ctx)
+static void
+SHA1ToDi(const struct ccdigest_info *di, SHA1_CTX *sha1_ctx, struct ccdigest_ctx *di_ctx)
 {
        uint64_t count = getCount(sha1_ctx);
-       
-       ccdigest_num(di, di_ctx)=count%di->block_size;
-       ccdigest_nbits(di, di_ctx)=(count-ccdigest_num(di, di_ctx))*8;
+
+       ccdigest_num(di, di_ctx) = count % di->block_size;
+       ccdigest_nbits(di, di_ctx) = (count - ccdigest_num(di, di_ctx)) * 8;
        memcpy(ccdigest_data(di, di_ctx), sha1_ctx->m.b8, di->block_size);
-       memcpy(ccdigest_state_ccn(di, di_ctx), sha1_ctx->h.b8, di->state_size); 
+       memcpy(ccdigest_state_ccn(di, di_ctx), sha1_ctx->h.b8, di->state_size);
 }
 
-void SHA1Init(SHA1_CTX *ctx)
+void
+SHA1Init(SHA1_CTX *ctx)
 {
-       const struct ccdigest_info *di=g_crypto_funcs->ccsha1_di;
+       const struct ccdigest_info *di = g_crypto_funcs->ccsha1_di;
        ccdigest_di_decl(di, di_ctx);
-       
+
        g_crypto_funcs->ccdigest_init_fn(di, di_ctx);
-       
+
        DiToSHA1(di, di_ctx, ctx);
 }
 
-void SHA1Update(SHA1_CTX *ctx, const void *data, size_t len)
+void
+SHA1Update(SHA1_CTX *ctx, const void *data, size_t len)
 {
-       const struct ccdigest_info *di=g_crypto_funcs->ccsha1_di;
+       const struct ccdigest_info *di = g_crypto_funcs->ccsha1_di;
        ccdigest_di_decl(di, di_ctx);
-       
+
        SHA1ToDi(di, ctx, di_ctx);
-       g_crypto_funcs->ccdigest_update_fn(di, di_ctx, len, data);      
+       g_crypto_funcs->ccdigest_update_fn(di, di_ctx, len, data);
        DiToSHA1(di, di_ctx, ctx);
 }
 
-void SHA1Final(void *digest, SHA1_CTX *ctx)
+void
+SHA1Final(void *digest, SHA1_CTX *ctx)
 {
-       const struct ccdigest_info *di=g_crypto_funcs->ccsha1_di;
+       const struct ccdigest_info *di = g_crypto_funcs->ccsha1_di;
        ccdigest_di_decl(di, di_ctx);
-       
+
        SHA1ToDi(di, ctx, di_ctx);
        ccdigest_final(di, di_ctx, digest);
 }
 
 #ifdef XNU_KERNEL_PRIVATE
-void SHA1UpdateUsePhysicalAddress(SHA1_CTX *ctx, const void *data, size_t len)
+void
+SHA1UpdateUsePhysicalAddress(SHA1_CTX *ctx, const void *data, size_t len)
 {
        //TODO: What the hell ?
        SHA1Update(ctx, data, len);
 }
 #endif
 
-/* This is not publicised in header, but exported in libkern.exports */ 
+/* This is not publicised in header, but exported in libkern.exports */
 void SHA1Final_r(SHA1_CTX *context, void *digest);
-void SHA1Final_r(SHA1_CTX *context, void *digest)
+void
+SHA1Final_r(SHA1_CTX *context, void *digest)
 {
        SHA1Final(digest, context);
 }
@@ -92,17 +100,17 @@ void sha1_hardware_hook(Boolean option, InKernelPerformSHA1Func func, void *ref)
 static void *SHA1Ref;
 static InKernelPerformSHA1Func performSHA1WithinKernelOnly;
 
-void sha1_hardware_hook(Boolean option, InKernelPerformSHA1Func func, void *ref)
+void
+sha1_hardware_hook(Boolean option, InKernelPerformSHA1Func func, void *ref)
 {
-       if(option) {
+       if (option) {
                // Establish the hook. The hardware is ready.
                OSCompareAndSwapPtr((void*)NULL, (void*)ref, (void * volatile*)&SHA1Ref);
 
-               if(!OSCompareAndSwapPtr((void *)NULL, (void *)func, (void * volatile *)&performSHA1WithinKernelOnly)) {
+               if (!OSCompareAndSwapPtr((void *)NULL, (void *)func, (void * volatile *)&performSHA1WithinKernelOnly)) {
                        panic("sha1_hardware_hook: Called twice.. Should never happen\n");
                }
-       }
-       else {
+       } else {
                // The hardware is going away. Tear down the hook.
                performSHA1WithinKernelOnly = NULL;
                SHA1Ref = NULL;