From 31f4b036ea97d87d3f094d6e5256976a25eac013 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Thu, 16 Oct 2008 11:37:22 +0200 Subject: [PATCH] libudev: device - export properties when values are set --- udev/lib/libudev-device.c | 26 ++++++++++++++++++++------ udev/lib/libudev-monitor.c | 15 +++++++++++---- 2 files changed, 31 insertions(+), 10 deletions(-) diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c index 8afd68cc..acab2637 100644 --- a/udev/lib/libudev-device.c +++ b/udev/lib/libudev-device.c @@ -35,6 +35,7 @@ struct udev_device { int refcount; struct udev *udev; struct udev_device *parent_device; + int parent_set; char *syspath; const char *devpath; char *sysname; @@ -518,12 +519,12 @@ struct udev_device *udev_device_get_parent(struct udev_device *udev_device) { if (udev_device == NULL) return NULL; - - if (udev_device->parent_device != NULL) { - info(udev_device->udev, "returning existing parent %p\n", udev_device->parent_device); - return udev_device->parent_device; + if (!udev_device->parent_set) { + udev_device->parent_set = 1; + udev_device->parent_device = device_new_from_parent(udev_device); } - udev_device->parent_device = device_new_from_parent(udev_device); + if (udev_device->parent_device != NULL) + info(udev_device->udev, "returning existing parent %p\n", udev_device->parent_device); return udev_device->parent_device; } @@ -1016,7 +1017,7 @@ int udev_device_set_action(struct udev_device *udev_device, const char *action) udev_device->action = strdup(action); if (udev_device->action == NULL) return -ENOMEM; - udev_device_add_property(udev_device, "ACTION", action); + udev_device_add_property(udev_device, "ACTION", udev_device->action); return 0; } @@ -1027,6 +1028,7 @@ int udev_device_set_driver(struct udev_device *udev_device, const char *driver) if (udev_device->driver == NULL) return -ENOMEM; udev_device->driver_set = 1; + udev_device_add_property(udev_device, "DRIVER", udev_device->driver); return 0; } @@ -1040,6 +1042,7 @@ int udev_device_set_devpath_old(struct udev_device *udev_device, const char *dev udev_device->devpath_old = strdup(devpath_old); if (udev_device->devpath_old == NULL) return -ENOMEM; + udev_device_add_property(udev_device, "DEVPATH_OLD", udev_device->devpath_old); return 0; } @@ -1081,13 +1084,24 @@ int udev_device_set_event_timeout(struct udev_device *udev_device, int event_tim int udev_device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum) { + char num[32]; + udev_device->seqnum = seqnum; + snprintf(num, sizeof(num), "%llu", seqnum); + udev_device_add_property(udev_device, "SEQNUM", num); return 0; } int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum) { + char num[32]; + udev_device->devnum = devnum; + + snprintf(num, sizeof(num), "%u", major(devnum)); + udev_device_add_property(udev_device, "MAJOR", num); + snprintf(num, sizeof(num), "%u", minor(devnum)); + udev_device_add_property(udev_device, "MINOR", num); return 0; } diff --git a/udev/lib/libudev-monitor.c b/udev/lib/libudev-monitor.c index dd8dfac3..382fbfac 100644 --- a/udev/lib/libudev-monitor.c +++ b/udev/lib/libudev-monitor.c @@ -245,6 +245,8 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito char buf[4096]; size_t bufpos; int devpath_set = 0; + int subsystem_set = 0; + int action_set = 0; int maj = 0; int min = 0; @@ -317,6 +319,7 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito devpath_set = 1; } else if (strncmp(key, "SUBSYSTEM=", 10) == 0) { udev_device_set_subsystem(udev_device, &key[10]); + subsystem_set = 1; } else if (strncmp(key, "DEVNAME=", 8) == 0) { udev_device_set_devnode(udev_device, &key[8]); } else if (strncmp(key, "DEVLINKS=", 9) == 0) { @@ -339,6 +342,7 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito udev_device_set_driver(udev_device, &key[7]); } else if (strncmp(key, "ACTION=", 7) == 0) { udev_device_set_action(udev_device, &key[7]); + action_set = 1; } else if (strncmp(key, "MAJOR=", 6) == 0) { maj = strtoull(&key[6], NULL, 10); } else if (strncmp(key, "MINOR=", 6) == 0) { @@ -351,12 +355,15 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito udev_device_set_seqnum(udev_device, strtoull(&key[7], NULL, 10)); } else if (strncmp(key, "TIMEOUT=", 8) == 0) { udev_device_set_timeout(udev_device, strtoull(&key[8], NULL, 10)); - } - if (strncmp(key, "PHYSDEV", 7) == 0) + } else if (strncmp(key, "PHYSDEV", 7) == 0) { + /* skip deprecated values */ continue; - udev_device_add_property_from_string(udev_device, key); + } else { + udev_device_add_property_from_string(udev_device, key); + } } - if (!devpath_set) { + if (!devpath_set || !subsystem_set || !action_set) { + info(udev_monitor->udev, "missing values, skip\n"); udev_device_unref(udev_device); return NULL; } -- 2.39.5