[settings] Add "hexraw" setting type

Originally-implemented-by: Jeppe Toustrup <ipxe@tenzer.dk>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/core/settings.c

 	return format_hex_setting ( raw, raw_len, buf, len, "-" );
 }
 
+/**
+ * Parse hex string setting value (using no delimiter)
+ *
+ * @v value		Formatted setting value
+ * @v buf		Buffer to contain raw value
+ * @v len		Length of buffer
+ * @v size		Integer size, in bytes
+ * @ret len		Length of raw value, or negative error
+ */
+static int parse_hex_raw_setting ( const char *value, void *buf,
+				   size_t len ) {
+	return hex_decode ( value, 0, buf, len );
+}
+
+/**
+ * Format hex string setting value (using no delimiter)
+ *
+ * @v raw		Raw setting value
+ * @v raw_len		Length of raw setting value
+ * @v buf		Buffer to contain formatted value
+ * @v len		Length of buffer
+ * @ret len		Length of formatted value, or negative error
+ */
+static int format_hex_raw_setting ( const void *raw, size_t raw_len,
+				    char *buf, size_t len ) {
+	return format_hex_setting ( raw, raw_len, buf, len, "" );
+}
+
 /** A hex-string setting (colon-delimited) */
 struct setting_type setting_type_hex __setting_type = {
 	.name = "hex",
 	.format = format_hex_hyphen_setting,
 };
 
+/** A hex-string setting (non-delimited) */
+struct setting_type setting_type_hexraw __setting_type = {
+	.name = "hexraw",
+	.parse = parse_hex_raw_setting,
+	.format = format_hex_raw_setting,
+};
+
 /**
  * Parse UUID setting value
  *

src/include/ipxe/settings.h

 extern struct setting_type setting_type_uint32 __setting_type;
 extern struct setting_type setting_type_hex __setting_type;
 extern struct setting_type setting_type_hexhyp __setting_type;
+extern struct setting_type setting_type_hexraw __setting_type;
 extern struct setting_type setting_type_uuid __setting_type;
 
 extern struct setting ip_setting __setting ( SETTING_IPv4 );

src/tests/settings_test.c

 	.type = &setting_type_hexhyp,
 };
 
+/** Test raw hex string setting type */
+static struct setting test_hexraw_setting = {
+	.name = "test_hexraw",
+	.type = &setting_type_hexraw,
+};
+
 /** Test UUID setting type */
 static struct setting test_uuid_setting = {
 	.name = "test_uuid",
 			  0x09, 0x6c, 0x66, 0x13, 0xc1, 0xa8, 0xec, 0x27 ),
 		    "9f-e5-6d-fb-24-3a-4c-bb-a9-09-6c-66-13-c1-a8-ec-27" );
 
+	/* "hexraw" setting type */
+	storef_ok ( &test_settings, &test_hexraw_setting,
+		    "012345abcdef", RAW ( 0x01, 0x23, 0x45, 0xab, 0xcd, 0xef ));
+	fetchf_ok ( &test_settings, &test_hexraw_setting,
+		    RAW ( 0x9e, 0x4b, 0x6e, 0xef, 0x36, 0xb6, 0x46, 0xfe, 0x8f,
+			  0x17, 0x06, 0x39, 0x6b, 0xf4, 0x48, 0x4e ),
+		    "9e4b6eef36b646fe8f1706396bf4484e" );
+
 	/* "uuid" setting type (no store capability) */
 	fetchf_ok ( &test_settings, &test_uuid_setting,
 		    RAW ( 0x1a, 0x6a, 0x74, 0x9d, 0x0e, 0xda, 0x46, 0x1a,0xa8,