[PATCH][2.6.0-test9] prevent catch-all USB aliases in modules.alias
From: Andrey Borzenkov
Date: Mon Nov 03 2003 - 11:56:12 EST
visor.c defines one empty slot in USB ids table that can be filled in at
runtime using module parameters. file2alias generates catch-all alias for it:
alias usb:v*p*dl*dh*dc*dsc*dp*ic*isc*ip* visor
patch adds the same sanity check as in depmod to scripts/file2alias.
regards
-andrey
--- ../tmp/linux-2.6.0-test9/scripts/file2alias.c 2003-07-27 22:29:49.000000000 +0400
+++ linux-2.6.0-test9/scripts/file2alias.c 2003-11-03 19:40:47.744746456 +0300
@@ -52,6 +52,13 @@ static int do_usb_entry(const char *file
id->bcdDevice_lo = TO_NATIVE(id->bcdDevice_lo);
id->bcdDevice_hi = TO_NATIVE(id->bcdDevice_hi);
+ /*
+ * Some modules (visor) have empty slots as placeholder for
+ * run-time specification that results in catch-all alias
+ */
+ if (!(id->idVendor | id->bDeviceClass | id->bInterfaceClass))
+ return 1;
+
strcpy(alias, "usb:");
ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR,
id->idVendor);