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-rw-r--r--discover/udev.c47
1 files changed, 33 insertions, 14 deletions
diff --git a/discover/udev.c b/discover/udev.c
index 3127ec2..e3495e9 100644
--- a/discover/udev.c
+++ b/discover/udev.c
@@ -60,23 +60,17 @@ static void udev_setup_device_params(struct udev_device *udev,
udev_list_entry_get_value(entry));
}
-static int udev_handle_dev_add(struct pb_udev *udev, struct udev_device *dev)
+static int udev_handle_block_add(struct pb_udev *udev, struct udev_device *dev,
+ const char *name)
{
struct discover_device *ddev;
const char *typestr;
const char *uuid;
const char *path;
- const char *name;
const char *node;
const char *prop;
bool cdrom;
- name = udev_device_get_sysname(dev);
- if (!name) {
- pb_debug("udev_device_get_sysname failed\n");
- return -1;
- }
-
typestr = udev_device_get_devtype(dev);
if (!typestr) {
pb_debug("udev_device_get_devtype failed\n");
@@ -107,12 +101,6 @@ static int udev_handle_dev_add(struct pb_udev *udev, struct udev_device *dev)
}
}
- /* We have enough info to create the device and start discovery */
- ddev = device_lookup_by_id(udev->handler, name);
- if (ddev) {
- pb_debug("device %s is already present?\n", name);
- return -1;
- }
/* We may see multipath devices; they'll have the same uuid as an
* existing device, so only parse the first. */
@@ -144,6 +132,37 @@ static int udev_handle_dev_add(struct pb_udev *udev, struct udev_device *dev)
return 0;
}
+static int udev_handle_dev_add(struct pb_udev *udev, struct udev_device *dev)
+{
+ const char *subsys;
+ const char *name;
+
+ name = udev_device_get_sysname(dev);
+ if (!name) {
+ pb_debug("udev_device_get_sysname failed\n");
+ return -1;
+ }
+
+ subsys = udev_device_get_subsystem(dev);
+ if (!subsys) {
+ pb_debug("udev_device_get_subsystem failed\n");
+ return -1;
+ }
+
+ if (device_lookup_by_id(udev->handler, name)) {
+ pb_debug("device %s is already present?\n", name);
+ return -1;
+ }
+
+ if (!strcmp(subsys, "block")) {
+ return udev_handle_block_add(udev, dev, name);
+ }
+
+ pb_debug("SKIP %s: unknown subsystem %s\n", name, subsys);
+ return -1;
+}
+
+
static int udev_handle_dev_remove(struct pb_udev *udev, struct udev_device *dev)
{
struct discover_device *ddev;
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