From 2e9512292e83ed5d2c9aae84b7cef08ab8e39937 Mon Sep 17 00:00:00 2001
From: Michael Hamburg <mike@shiftleft.org>
Date: Fri, 29 Jan 2016 15:18:51 -0800
Subject: [PATCH] template curve_data

---
 Makefile                        |  2 +-
 src/per_curve/crypto.tmpl.c     |  5 +++--
 src/per_curve/curve_data.tmpl.h | 34 ---------------------------------
 src/per_curve/decaf.tmpl.c      | 20 +++++++++++++++++--
 4 files changed, 22 insertions(+), 39 deletions(-)
 delete mode 100644 src/per_curve/curve_data.tmpl.h

diff --git a/Makefile b/Makefile
index 9d28e30..cfb1e7e 100644
--- a/Makefile
+++ b/Makefile
@@ -169,7 +169,7 @@ define define_curve
 
 LIBCOMPONENTS += $$(BUILD_OBJ)/$(1)/decaf.o $$(BUILD_OBJ)/$(1)/crypto.o $$(BUILD_OBJ)/$(1)/decaf_tables.o
 PER_OBJ_DIRS += $$(BUILD_OBJ)/$(1)
-HEADERS_OF_$(1) = $$(HEADERS_OF_$(2)) $$(BUILD_H)/$(1)/curve_data.h
+HEADERS_OF_$(1) = $$(HEADERS_OF_$(2))
 
 $$(BUILD_C)/$(1)/%.c: src/per_curve/%.tmpl.c src/gen_headers/* $$(HEADERS_OF_$(2))
 	python -B src/gen_headers/template.py --per=curve --item=$(1) --guard=$(1)/`basename $$@` -o $$@ $$<
diff --git a/src/per_curve/crypto.tmpl.c b/src/per_curve/crypto.tmpl.c
index 4e46d7d..a2697a7 100644
--- a/src/per_curve/crypto.tmpl.c
+++ b/src/per_curve/crypto.tmpl.c
@@ -7,8 +7,9 @@
 #include <decaf/crypto.h>
 #include <string.h>
 
-#define DECAF_JUST_API
-#include "curve_data.h"
+#define API_NAME "$(c_ns)"
+#define API_NS(_id) $(c_ns)_##_id
+#define SCALAR_BITS $(C_NS)_SCALAR_BITS
 #define SCALAR_BYTES ((SCALAR_BITS + 7)/8)
 
  /* TODO: canonicalize and freeze the STROBE constants in this file
diff --git a/src/per_curve/curve_data.tmpl.h b/src/per_curve/curve_data.tmpl.h
deleted file mode 100644
index dc1ba49..0000000
--- a/src/per_curve/curve_data.tmpl.h
+++ /dev/null
@@ -1,34 +0,0 @@
-#define API_NAME "$(c_ns)"
-#define API_NS(_id) $(c_ns)_##_id
-
-#define SCALAR_BITS $(C_NS)_SCALAR_BITS
-
-#ifndef DECAF_JUST_API
-
-#define SCALAR_LIMBS $(C_NS)_SCALAR_LIMBS
-#define scalar_t API_NS(scalar_t)
-#define point_t API_NS(point_t)
-#define precomputed_s API_NS(precomputed_s)
-#define IMAGINE_TWIST $(imagine_twist)
-#define COFACTOR $(cofactor)
-
-static const int EDWARDS_D = $(d);
-
-static const scalar_t sc_p = {{{
-    $(scalar_p)
-}}};
-
-#ifdef GEN_TABLES
-/* Not exported, but used by pregen tool. */
-static const unsigned char base_point_ser_for_pregen[SER_BYTES] = {
-    $(decaf_base)
-};
-#endif
-
-#if COFACTOR==8
-    static const gf SQRT_ONE_MINUS_D = {FIELD_LITERAL(
-        $(sqrt_one_minus_d)
-    )};
-#endif
-
-#endif /* DECAF_JUST_API */
diff --git a/src/per_curve/decaf.tmpl.c b/src/per_curve/decaf.tmpl.c
index 14fe348..bd81b2b 100644
--- a/src/per_curve/decaf.tmpl.c
+++ b/src/per_curve/decaf.tmpl.c
@@ -10,8 +10,24 @@
 
 #include <decaf.h>
 
-/* Include the curve data here */
-#include "curve_data.h"
+#define API_NS(_id) $(c_ns)_##_id
+#define SCALAR_BITS $(C_NS)_SCALAR_BITS
+#define SCALAR_LIMBS $(C_NS)_SCALAR_LIMBS
+#define scalar_t API_NS(scalar_t)
+#define point_t API_NS(point_t)
+#define precomputed_s API_NS(precomputed_s)
+#define IMAGINE_TWIST $(imagine_twist)
+#define COFACTOR $(cofactor)
+
+static const int EDWARDS_D = $(d);
+static const scalar_t sc_p = {{{ $(scalar_p) }}};
+
+#if COFACTOR==8
+    static const gf SQRT_ONE_MINUS_D = {FIELD_LITERAL(
+        $(sqrt_one_minus_d)
+    )};
+#endif
+
 
 #if (COFACTOR == 8) && !IMAGINE_TWIST
 /* FUTURE: Curve41417 doesn't have these properties. */