settings: Vendor from OUI helper function

3 files changed, 51 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index 708f966e..219e6701 100644
--- a/configure.ac
+++ b/configure.ac
@@ -88,7 +88,7 @@ dnl Requires for the input helper
 PKG_CHECK_MODULES(INPUT, gdk-3.0 gtk+-3.0)
 
 dnl Requires for the public library
-PKG_CHECK_MODULES(LIBGNOMEBT, gmodule-2.0 gio-unix-2.0 gtk+-3.0)
+PKG_CHECK_MODULES(LIBGNOMEBT, gmodule-2.0 gio-unix-2.0 gtk+-3.0 libudev)
 
 GDBUS_CODEGEN="gdbus-codegen"
 AC_SUBST(GDBUS_CODEGEN)
diff --git a/lib/pin.c b/lib/pin.c
index 390b4971..74e6c87c 100644
--- a/lib/pin.c
+++ b/lib/pin.c
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <glib.h>
+#include <libudev.h>
 #include <bluetooth-enums.h>
 #include <bluetooth-utils.h>
 
@@ -36,6 +37,54 @@
 #define PIN_CODE_DB "pin-code-database.xml"
 #define MAX_DIGITS_PIN_PREFIX "max:"
 
+char *
+oui_to_vendor (const char *oui)
+{
+	struct udev *udev;
+	struct udev_hwdb *hwdb;
+	struct udev_list_entry *list, *l;
+	char *modalias;
+	char *vendor = NULL;
+
+	if (oui == NULL ||
+	    strlen (oui) < 8)
+		return NULL;
+
+	udev = udev_new ();
+	if (udev == NULL)
+		goto bail;
+
+	hwdb = udev_hwdb_new (udev);
+	if (hwdb == NULL)
+		goto bail;
+
+	modalias = g_strdup_printf ("OUI:%c%c%c%c%c%c",
+				    g_ascii_toupper (oui[0]),
+				    g_ascii_toupper (oui[1]),
+				    g_ascii_toupper (oui[3]),
+				    g_ascii_toupper (oui[4]),
+				    g_ascii_toupper (oui[6]),
+				    g_ascii_toupper (oui[7]));
+
+	list = udev_hwdb_get_properties_list_entry (hwdb, modalias, 0);
+
+	udev_list_entry_foreach (l, list) {
+		const char *name = udev_list_entry_get_name (l);
+
+		if (g_strcmp0 (name, "ID_OUI_FROM_DATABASE") == 0) {
+			vendor = g_strdup (udev_list_entry_get_value (l));
+			break;
+		}
+	}
+
+bail:
+	g_clear_pointer (&modalias, g_free);
+	g_clear_pointer (&hwdb, udev_hwdb_unref);
+	g_clear_pointer (&udev, udev_unref);
+
+	return vendor;
+}
+
 #define TYPE_IS(x, r) {				\
 	if (g_str_equal(type, x)) return r;	\
 }
diff --git a/lib/pin.h b/lib/pin.h
index 815969dd..db7d3234 100644
--- a/lib/pin.h
+++ b/lib/pin.h
@@ -25,6 +25,7 @@
 
 #define PIN_NUM_DIGITS 6
 
+char *oui_to_vendor (const char *oui);
 char *get_pincode_for_device (guint       type,
 			      const char *address,
 			      const char *name,