ec: Convert comments to C-style

BUG=b:123686979
TEST=make buildall -j

Change-Id: I1fc49f44c6f1be3bcacb26662862cb68899be299
Signed-off-by: Louis Collard <louiscollard@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2102092
Tested-by: Leo Lai <cylai@google.com>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Commit-Queue: Leo Lai <cylai@google.com>

1 files changed, 52 insertions, 48 deletions

diff --git a/include/u2f.h b/include/u2f.h
index 2bb243dea6..5af23bc773 100644
--- a/include/u2f.h
+++ b/include/u2f.h
@@ -5,7 +5,7 @@
 #ifndef __U2F_H_INCLUDED__
 #define __U2F_H_INCLUDED__
 
-#ifdef _MSC_VER // Windows
+#ifdef _MSC_VER /* Windows */
 typedef unsigned char uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int uint32_t;
@@ -18,62 +18,62 @@ typedef unsigned long int uint64_t;
 extern "C" {
 #endif
 
-// General constants
-
-#define U2F_EC_KEY_SIZE	      32 // EC key size in bytes
-#define U2F_EC_POINT_SIZE     ((U2F_EC_KEY_SIZE * 2) + 1) // Size of EC point
-#define U2F_MAX_KH_SIZE	      128 // Max size of key handle
-#define U2F_MAX_ATT_CERT_SIZE 2048 // Max size of attestation certificate
-#define U2F_MAX_EC_SIG_SIZE   72 // Max size of DER coded EC signature
-#define U2F_CTR_SIZE	      4 // Size of counter field
-#define U2F_APPID_SIZE	      32 // Size of application id
-#define U2F_CHAL_SIZE	      32 // Size of challenge
-#define U2F_MAX_ATTEST_SIZE   256 // Size of largest blob to sign
+/* General constants */
+
+#define U2F_EC_KEY_SIZE	      32 /* EC key size in bytes */
+#define U2F_EC_POINT_SIZE     ((U2F_EC_KEY_SIZE * 2) + 1) /* Size of EC point */
+#define U2F_MAX_KH_SIZE	      128 /* Max size of key handle */
+#define U2F_MAX_ATT_CERT_SIZE 2048 /* Max size of attestation certificate */
+#define U2F_MAX_EC_SIG_SIZE   72 /* Max size of DER coded EC signature */
+#define U2F_CTR_SIZE	      4 /* Size of counter field */
+#define U2F_APPID_SIZE	      32 /* Size of application id */
+#define U2F_CHAL_SIZE	      32 /* Size of challenge */
+#define U2F_MAX_ATTEST_SIZE   256 /* Size of largest blob to sign */
 #define U2F_P256_SIZE	      32
-#define U2F_FIXED_KH_SIZE     64 // Size of fixed size key handles
+#define U2F_FIXED_KH_SIZE     64 /* Size of fixed size key handles */
 
 #define ENC_SIZE(x) ((x + 7) & 0xfff8)
 
-// EC (uncompressed) point
+/* EC (uncompressed) point */
 
-#define U2F_POINT_UNCOMPRESSED 0x04 // Uncompressed point format
+#define U2F_POINT_UNCOMPRESSED 0x04 /* Uncompressed point format */
 
 struct u2f_ec_point {
-	uint8_t pointFormat; // Point type
-	uint8_t x[U2F_EC_KEY_SIZE]; // X-value
-	uint8_t y[U2F_EC_KEY_SIZE]; // Y-value
+	uint8_t pointFormat; /* Point type */
+	uint8_t x[U2F_EC_KEY_SIZE]; /* X-value */
+	uint8_t y[U2F_EC_KEY_SIZE]; /* Y-value */
 };
 
-// Request Flags.
+/* Request Flags. */
 
-#define U2F_AUTH_ENFORCE    0x03 // Enforce user presence and sign
-#define U2F_AUTH_CHECK_ONLY 0x07 // Check only
-#define U2F_AUTH_FLAG_TUP   0x01 // Test of user presence set
+#define U2F_AUTH_ENFORCE    0x03 /* Enforce user presence and sign */
+#define U2F_AUTH_CHECK_ONLY 0x07 /* Check only */
+#define U2F_AUTH_FLAG_TUP   0x01 /* Test of user presence set */
 
-// TODO(louiscollard): Add Descriptions.
+/* TODO(louiscollard): Add Descriptions. */
 
 struct u2f_generate_req {
-	uint8_t appId[U2F_APPID_SIZE]; // Application id
+	uint8_t appId[U2F_APPID_SIZE]; /* Application id */
 	uint8_t userSecret[U2F_P256_SIZE];
 	uint8_t flags;
 };
 
 struct u2f_generate_resp {
-	struct u2f_ec_point pubKey; // Generated public key
-	uint8_t keyHandle[U2F_FIXED_KH_SIZE]; // Key handle
+	struct u2f_ec_point pubKey; /* Generated public key */
+	uint8_t keyHandle[U2F_FIXED_KH_SIZE]; /* Key handle */
 };
 
 struct u2f_sign_req {
-	uint8_t appId[U2F_APPID_SIZE]; // Application id
+	uint8_t appId[U2F_APPID_SIZE]; /* Application id */
 	uint8_t userSecret[U2F_P256_SIZE];
-	uint8_t keyHandle[U2F_FIXED_KH_SIZE]; // Key handle
+	uint8_t keyHandle[U2F_FIXED_KH_SIZE]; /* Key handle */
 	uint8_t hash[U2F_P256_SIZE];
 	uint8_t flags;
 };
 
 struct u2f_sign_resp {
-	uint8_t sig_r[U2F_P256_SIZE]; // Signature
-	uint8_t sig_s[U2F_P256_SIZE]; // Signature
+	uint8_t sig_r[U2F_P256_SIZE]; /* Signature */
+	uint8_t sig_s[U2F_P256_SIZE]; /* Signature */
 };
 
 struct u2f_attest_req {
@@ -88,39 +88,43 @@ struct u2f_attest_resp {
 	uint8_t sig_s[U2F_P256_SIZE];
 };
 
-// Command status responses
+/* Command status responses */
 
-#define U2F_SW_NO_ERROR			0x9000 // SW_NO_ERROR
-#define U2F_SW_WRONG_DATA		0x6A80 // SW_WRONG_DATA
-#define U2F_SW_CONDITIONS_NOT_SATISFIED 0x6985 // SW_CONDITIONS_NOT_SATISFIED
-#define U2F_SW_COMMAND_NOT_ALLOWED	0x6986 // SW_COMMAND_NOT_ALLOWED
-#define U2F_SW_INS_NOT_SUPPORTED	0x6D00 // SW_INS_NOT_SUPPORTED
+#define U2F_SW_NO_ERROR	  0x9000 /* SW_NO_ERROR */
+#define U2F_SW_WRONG_DATA 0x6A80 /* SW_WRONG_DATA */
+#define U2F_SW_CONDITIONS_NOT_SATISFIED       \
+	0x6985 /* SW_CONDITIONS_NOT_SATISFIED \
+		*/
+#define U2F_SW_COMMAND_NOT_ALLOWED 0x6986 /* SW_COMMAND_NOT_ALLOWED */
+#define U2F_SW_INS_NOT_SUPPORTED   0x6D00 /* SW_INS_NOT_SUPPORTED */
 
-// Protocol extensions
+/* Protocol extensions */
 
-// Non-standardized command status responses
+/* Non-standardized command status responses */
 #define U2F_SW_CLA_NOT_SUPPORTED 0x6E00
 #define U2F_SW_WRONG_LENGTH	 0x6700
 #define U2F_SW_WTF		 0x6f00
 
-// Additional flags for P1 field
-#define G2F_ATTEST  0x80 // Fixed attestation key
-#define G2F_CONSUME 0x02 // Consume presence
+/* Additional flags for P1 field */
+#define G2F_ATTEST  0x80 /* Fixed attestation key */
+#define G2F_CONSUME 0x02 /* Consume presence */
 
-// The key handle format was changed when support for user secrets was added.
-// U2F_SIGN requests that specify this flag will first try to validate the
-// key handle as a new format key handle, and if that fails, will fall back
-// to treating it as a legacy key handle (without user secrets).
+/*
+ * The key handle format was changed when support for user secrets was added.
+ * U2F_SIGN requests that specify this flag will first try to validate the key
+ * handle as a new format key handle, and if that fails, will fall back to
+ * treating it as a legacy key handle (without user secrets).
+ */
 #define SIGN_LEGACY_KH 0x40
 
-// U2F Attest format for U2F Register Response.
+/* U2F Attest format for U2F Register Response. */
 #define U2F_ATTEST_FORMAT_REG_RESP 0
 
-// Vendor command to enable/disable the extensions
+/* Vendor command to enable/disable the extensions */
 #define U2F_VENDOR_MODE U2F_VENDOR_LAST
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif // __U2F_H_INCLUDED__
+#endif /* __U2F_H_INCLUDED__ */