1 files changed, 53 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/ctr.h b/security/nss/lib/freebl/ctr.h
new file mode 100644
index 000000000..a97da144e
--- /dev/null
+++ b/security/nss/lib/freebl/ctr.h
@@ -0,0 +1,53 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef CTR_H
+#define CTR_H 1
+
+#include "blapii.h"
+
+/* This structure is defined in this header because both ctr.c and gcm.c
+ * need it. */
+struct CTRContextStr {
+    freeblCipherFunc cipher;
+    void *context;
+    unsigned char counter[MAX_BLOCK_SIZE];
+    unsigned char buffer[MAX_BLOCK_SIZE];
+    unsigned char counterFirst[MAX_BLOCK_SIZE]; /* counter overlfow value */
+    PRBool checkWrap;                           /*check for counter overflow*/
+    unsigned long counterBits;
+    unsigned int bufPtr;
+};
+
+typedef struct CTRContextStr CTRContext;
+
+SECStatus CTR_InitContext(CTRContext *ctr, void *context,
+                          freeblCipherFunc cipher, const unsigned char *param,
+                          unsigned int blocksize);
+
+/*
+ * The context argument is the inner cipher context to use with cipher. The
+ * CTRContext does not own context. context needs to remain valid for as long
+ * as the CTRContext is valid.
+ *
+ * The cipher argument is a block cipher in the ECB encrypt mode.
+ */
+CTRContext *CTR_CreateContext(void *context, freeblCipherFunc cipher,
+                              const unsigned char *param, unsigned int blocksize);
+
+void CTR_DestroyContext(CTRContext *ctr, PRBool freeit);
+
+SECStatus CTR_Update(CTRContext *ctr, unsigned char *outbuf,
+                     unsigned int *outlen, unsigned int maxout,
+                     const unsigned char *inbuf, unsigned int inlen,
+                     unsigned int blocksize);
+
+#ifdef USE_HW_AES
+SECStatus CTR_Update_HW_AES(CTRContext *ctr, unsigned char *outbuf,
+                            unsigned int *outlen, unsigned int maxout,
+                            const unsigned char *inbuf, unsigned int inlen,
+                            unsigned int blocksize);
+#endif
+
+#endif