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udev: consider the device a CDROM when ID_CDROM=1

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Some CDROM devices are reported by udev to have an ID_TYPE="generic"
thus it is necessary to check if ID_CDROM is present.

As a side effect, treating ID_TYPE="generic" as a missing ID_TYPE will
enable checks for ID_DRIVE_FLASH_SD and ID_DRIVE_FLOPPY and the
udevKludgeStorageType heuristic.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2014-04-23 12:42:01 +02:00 committed by Eric Blake
parent 16c19ec162
commit 2c054ca176
1 changed files with 15 additions and 8 deletions
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23
src/node_device/node_device_udev.c
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@ -1,7 +1,7 @@
/*
* node_device_udev.c: node device enumeration - libudev implementation
*
* Copyright (C) 2009-2013 Red Hat, Inc.
* Copyright (C) 2009-2014 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -1093,20 +1093,27 @@ static int udevProcessStorage(struct udev_device *device,
if (udevGetStringProperty(device,
"ID_TYPE",
&data->storage.drive_type) != PROPERTY_FOUND) {
&data->storage.drive_type) != PROPERTY_FOUND ||
STREQ(def->caps->data.storage.drive_type, "generic")) {
int tmp_int = 0;
/* All floppy drives have the ID_DRIVE_FLOPPY prop. This is
* needed since legacy floppies don't have a drive_type */
if ((udevGetIntProperty(device, "ID_DRIVE_FLOPPY",
&tmp_int, 0) == PROPERTY_FOUND) &&
(tmp_int == 1)) {
if (udevGetIntProperty(device, "ID_DRIVE_FLOPPY",
&tmp_int, 0) == PROPERTY_FOUND &&
tmp_int == 1) {
if (VIR_STRDUP(data->storage.drive_type, "floppy") < 0)
goto out;
} else if ((udevGetIntProperty(device, "ID_DRIVE_FLASH_SD",
&tmp_int, 0) == PROPERTY_FOUND) &&
(tmp_int == 1)) {
} else if (udevGetIntProperty(device, "ID_CDROM",
&tmp_int, 0) == PROPERTY_FOUND &&
tmp_int == 1) {
if (VIR_STRDUP(data->storage.drive_type, "cd") < 0)
goto out;
} else if (udevGetIntProperty(device, "ID_DRIVE_FLASH_SD",
&tmp_int, 0) == PROPERTY_FOUND &&
tmp_int == 1) {
if (VIR_STRDUP(data->storage.drive_type, "sd") < 0)
goto out;