shaba/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2024-10-28 11:55:44 +03:00
Code

store ENV{key}="value" exported keys in the database

Browse Source 
Just like the IMPORT values are stored in the udev database the
exported keys are stored in the udev database. The database is also
imported on a remove event before the rules are matched. So it
is possible to do:
  ACTION=="add", KERNEL=="sda", ENV{MY_DEVICE}="1234", RUN+="/bin/logger add $devpath"
  ACTION=="remove", ENV{MY_DEVICE}=="1234", RUN+="/bin/logger remove $devpath"

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
This commit is contained in:
Kay Sievers 2005-08-26 21:38:18 +02:00
parent c4ef16f92c
commit 8f847bb845
2 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
udev_event.c
View File

@ -91,15 +91,21 @@ int udev_process_event(struct udev_rules *rules, struct udevice *udev)
}
sysfs_close_class_device(class_dev);
} else if (strcmp(udev->action, "remove") == 0) {
struct name_entry *name_loop;
/* get data from db, remove db-entry, delete node */
dbg("node remove");
retval = udev_remove_device(udev);
/* restore stored persistent data */
list_for_each_entry(name_loop, &udev->env_list, node)
putenv(name_loop->name);
udev_rules_get_run(rules, udev, NULL, NULL);
if (udev->ignore_device) {
dbg("device event will be ignored");
return -1;
}
/* get name from db, remove db-entry, delete node */
retval = udev_remove_device(udev);
}
/* export name of device node or netif */

1
udev_rules.c
View File

@ -859,6 +859,7 @@ try_parent:
const char *key_name = key_pair_name(rule, pair);
const char *value = key_val(rule, &pair->key);
name_list_key_add(&udev->env_list, key_name, value);
setenv(key_name, value, 1);
dbg("export ENV '%s=%s'", key_name, value);
}