#include <sys/un.h>
#include <log/log.h>
+#include <types/types.h>
#include <talloc/talloc.h>
#include <waiter/waiter.h>
#include <system/system.h>
#include "pb-discover.h"
#include "device-handler.h"
-#if defined(DEBUG)
-#define DBG(fmt, args...) pb_log("DBG: " fmt, ## args)
-#define DBGS(fmt, args...) \
- pb_log("DBG:%s:%d: " fmt, __func__, __LINE__, ## args)
-#else
-#define DBG(fmt, args...)
-#define DBGS(fmt, args...)
-#endif
-
struct pb_udev {
struct udev *udev;
struct udev_monitor *monitor;
return 0;
}
-static void print_device_properties(struct udev_device *dev)
+static void udev_setup_device_params(struct udev_device *udev,
+ struct discover_device *dev)
{
struct udev_list_entry *list, *entry;
- assert(dev);
-
- if (1) {
- list = udev_device_get_properties_list_entry(dev);
+ list = udev_device_get_properties_list_entry(udev);
+ if (!list)
+ return;
- assert(list);
-
- udev_list_entry_foreach(entry, list)
- DBG("property: %s - %s\n",
+ udev_list_entry_foreach(entry, list)
+ discover_device_set_param(dev,
udev_list_entry_get_name(entry),
- udev_device_get_property_value(dev,
- udev_list_entry_get_name(entry)));
- }
+ udev_list_entry_get_value(entry));
}
-static int udev_handle_dev_action(struct udev_device *dev, const char *action)
+static int udev_handle_dev_add(struct pb_udev *udev, struct udev_device *dev)
{
- const char *devtype;
- const char *devpath;
- const char *devnode;
- struct pb_udev *udev;
- struct event *event;
- enum event_action eva = 0;
-
- assert(dev);
- assert(action);
-
- devtype = udev_device_get_devtype(dev); /* DEVTYPE */
-
- if (!devtype) {
- pb_log("udev_device_get_devtype failed\n");
+ struct discover_device *ddev;
+ const char *typestr;
+ const char *serial;
+ const char *path;
+ const char *name;
+ const char *prop;
+
+ name = udev_device_get_sysname(dev);
+ if (!name) {
+ pb_debug("udev_device_get_sysname failed\n");
return -1;
}
- devpath = udev_device_get_devpath(dev); /* DEVPATH */
-
- if (!devpath) {
- pb_log("udev_device_get_devpath failed\n");
+ typestr = udev_device_get_devtype(dev);
+ if (!typestr) {
+ pb_debug("udev_device_get_devtype failed\n");
return -1;
}
- devnode = udev_device_get_devnode(dev); /* DEVNAME */
+ if (!(!strcmp(typestr, "disk") || !strcmp(typestr, "partition"))) {
+ pb_debug("SKIP %s: invalid type %s\n", name, typestr);
+ return 0;
+ }
+
+ path = udev_device_get_devpath(dev);
+ if (path && (strstr(path, "virtual/block/loop")
+ || strstr(path, "virtual/block/ram"))) {
+ pb_debug("SKIP: %s: ignored (path=%s)\n", name, path);
+ return 0;
+ }
- if (!devnode) {
- pb_log("udev_device_get_devnode failed\n");
+ /* 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;
}
- print_device_properties(dev);
+ /* we may also see multipath devices; same dev nodes (hence id), but
+ * different serial numbers */
+ serial = udev_device_get_property_value(dev, "ID_SERIAL");
+ if (serial && device_lookup_by_serial(udev->handler, serial))
+ return -1;
- /* Ignore non disk or partition, ram, loop. */
+ ddev = discover_device_create(udev->handler, name);
- if (!(strstr(devtype, "disk") || strstr(devtype, "partition"))
- || strstr(devpath, "virtual/block/loop")
- || strstr(devpath, "virtual/block/ram")) {
- pb_log("SKIP: %s - %s\n", devtype, devnode);
- return 0;
- }
+ ddev->device_path = udev_device_get_devnode(dev);
+ prop = udev_device_get_property_value(dev, "ID_FS_UUID");
+ if (prop)
+ ddev->uuid = talloc_strdup(ddev, prop);
+ prop = udev_device_get_property_value(dev, "ID_FS_LABEL");
+ if (prop)
+ ddev->label = talloc_strdup(ddev, prop);
+ ddev->device->type = DEVICE_TYPE_DISK;
- if (!strcmp(action, "add")) {
- pb_log("ADD: %s - %s\n", devtype, devnode);
- eva = EVENT_ACTION_ADD;
- } else if (!strcmp(action, "remove")) {
- pb_log("REMOVE: %s - %s\n", devtype, devnode);
- eva = EVENT_ACTION_REMOVE;
- } else {
- pb_log("SKIP: %s: %s - %s\n", action, devtype, devnode);
- return 0;
+ udev_setup_device_params(dev, ddev);
+
+ device_handler_discover(udev->handler, ddev);
+
+ return 0;
+}
+
+static int udev_handle_dev_remove(struct pb_udev *udev, struct udev_device *dev)
+{
+ struct discover_device *ddev;
+ const char *name;
+
+ name = udev_device_get_sysname(dev);
+ if (!name) {
+ pb_debug("udev_device_get_sysname failed\n");
+ return -1;
}
- event = talloc(NULL, struct event);
+ ddev = device_lookup_by_id(udev->handler, name);
+ if (!ddev)
+ return 0;
- event->type = EVENT_TYPE_UDEV;
- event->action = eva;
- event->device = devpath;
+ device_handler_remove(udev->handler, ddev);
- event->n_params = 1;
- event->params = talloc(event, struct param);
- event->params->name = "DEVNAME";
- event->params->value = devnode;
+ return 0;
+}
+static int udev_handle_dev_action(struct udev_device *dev, const char *action)
+{
+ struct pb_udev *udev = udev_get_userdata(udev_device_get_udev(dev));
- udev = udev_get_userdata(udev_device_get_udev(dev));
- assert(udev);
+ if (!strcmp(action, "add"))
+ return udev_handle_dev_add(udev, dev);
- device_handler_event(udev->handler, event);
+ else if (!strcmp(action, "remove"))
+ return udev_handle_dev_remove(udev, dev);
- talloc_free(event);
return 0;
}
if (result)
goto fail_monitor;
- waiter_register(waitset, udev_monitor_get_fd(udev->monitor), WAIT_IN,
+ waiter_register_io(waitset, udev_monitor_get_fd(udev->monitor), WAIT_IN,
udev_process, udev->monitor);
- pb_log("%s: waiting on %s\n", __func__, udev_get_sys_path(udev->udev));
+ pb_debug("%s: waiting on udev\n", __func__);
return udev;
projects / petitboot / blobdiff