Update SMBIOS internal API to be easier to use, and not to require

potentially exorbitant amounts of stack space.

src/arch/i386/include/smbios.h

@@ -6,6 +6,43 @@
  * System Management BIOS
  */
 
-extern int find_smbios_serial ( void *data, size_t len );
+#include <stdint.h>
+
+/** An SMBIOS structure header */
+struct smbios_header {
+	/** Type */
+	uint8_t type;
+	/** Length */
+	uint8_t length;
+	/** Handle */
+	uint16_t handle;
+} __attribute__ (( packed ));
+
+/** SMBIOS system information structure */
+struct smbios_system_information {
+	/** SMBIOS structure header */
+	struct smbios_header header;
+	/** Manufacturer string */
+	uint8_t manufacturer;
+	/** Product string */
+	uint8_t product;
+	/** Version string */
+	uint8_t version;
+	/** Serial number string */
+	uint8_t serial;
+	/** UUID */
+	uint8_t uuid[16];
+} __attribute__ (( packed ));
+
+/** SMBIOS system information structure type */
+#define SMBIOS_TYPE_SYSTEM_INFORMATION 1
+
+struct smbios_strings;
+extern int find_smbios_structure ( unsigned int type,
+				   void *structure, size_t length,
+				   struct smbios_strings *strings );
+extern int find_smbios_string ( struct smbios_strings *strings,
+				unsigned int index,
+				char *buffer, size_t length );
 
 #endif /* _SMBIOS_H */