From 09e52d51264080fab7062a1b4a405e526f299bc7 Mon Sep 17 00:00:00 2001 From: "kay.sievers@vrfy.org" Date: Wed, 19 Nov 2003 06:19:06 -0800 Subject: [PATCH] [PATCH] apply permissions.conf support for wildcard and default name Permissions given in udev.permissions are not applied if no METHOD from udev.config is found. I've added do_kernelname() to scan for known permissions if we only use the default method. Simple support for wildcards is also added: #name:user:group:mode hdb*:2702:2702:0660 results in: drwxr-xr-x 2 root root 240 Nov 19 03:45 . drwxr-xr-x 23 root root 528 Nov 17 03:36 .. brw-r--r-- 1 root root 3, 0 Nov 19 03:45 hda brw-r--r-- 1 root root 3, 1 Nov 19 03:45 hda1 brw-r--r-- 1 root root 3, 2 Nov 19 03:45 hda2 brw-r--r-- 1 root root 3, 4 Nov 19 03:45 hda4 brw-r----- 1 kay kay 3, 64 Nov 19 03:45 hdb brw-r----- 1 kay kay 3, 65 Nov 19 03:45 hdb1 brw-r--r-- 1 root root 22, 0 Nov 19 03:45 hdc crw-r--r-- 1 root root 81, 0 Nov 19 03:34 webcam0 --- namedev.c | 78 +++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 56 insertions(+), 22 deletions(-) diff --git a/namedev.c b/namedev.c index ccc67506..223fd6de 100644 --- a/namedev.c +++ b/namedev.c @@ -105,24 +105,30 @@ static int add_dev(struct config_device *new_dev) struct list_head *tmp; struct config_device *tmp_dev; - /* loop through the whole list of devices to see if we already have - * this one... */ + /* update the values if we already have the device */ list_for_each(tmp, &config_device_list) { struct config_device *dev = list_entry(tmp, struct config_device, node); - if (strcmp(dev->name, new_dev->name) == 0) { - /* the same, copy the new info into this structure */ - copy_var(dev, new_dev, type); - copy_var(dev, new_dev, mode); - copy_string(dev, new_dev, bus); - copy_string(dev, new_dev, sysfs_file); - copy_string(dev, new_dev, sysfs_value); - copy_string(dev, new_dev, id); - copy_string(dev, new_dev, place); - copy_string(dev, new_dev, kernel_name); - copy_string(dev, new_dev, owner); - copy_string(dev, new_dev, group); - return 0; + int len = strlen(new_dev->name); + if (new_dev->name[len-1] == '*') { + len--; + if (strncmp(dev->name, new_dev->name, len)) + continue; + } else { + if (strcmp(dev->name, new_dev->name)) + continue; } + /* the same, copy the new info into this structure */ + copy_var(dev, new_dev, type); + copy_var(dev, new_dev, mode); + copy_string(dev, new_dev, bus); + copy_string(dev, new_dev, sysfs_file); + copy_string(dev, new_dev, sysfs_value); + copy_string(dev, new_dev, id); + copy_string(dev, new_dev, place); + copy_string(dev, new_dev, kernel_name); + copy_string(dev, new_dev, owner); + copy_string(dev, new_dev, group); + return 0; } /* not found, lets create a new structure, and add it to the list */ @@ -743,6 +749,32 @@ static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev return -ENODEV; } +static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev) +{ + struct config_device *dev; + struct list_head *tmp; + + strfieldcpy(udev->name, class_dev->name); + list_for_each(tmp, &config_device_list) { + dev = list_entry(tmp, struct config_device, node); + int len = strlen(dev->name); + if (dev->name[len-1] == '*') { + len--; + if (strncmp(dev->name, class_dev->name, len)) + continue; + } else { + if (strcmp(dev->name, class_dev->name)) + continue; + } + if (dev->mode != 0) { + dbg_parse("found permissions from config for '%s'", class_dev->name); + udev->mode = dev->mode; + strfieldcpy(udev->owner, dev->owner); + strfieldcpy(udev->group, dev->group); + } + } +} + static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev) { struct sysfs_device *sysfs_device = NULL; @@ -793,27 +825,28 @@ static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev) /* rules are looked at in priority order */ retval = do_callout(class_dev, udev); if (retval == 0) - goto done; + goto found; retval = do_label(class_dev, udev, sysfs_device); if (retval == 0) - goto done; + goto found; retval = do_number(class_dev, udev, sysfs_device); if (retval == 0) - goto done; + goto found; retval = do_topology(class_dev, udev, sysfs_device); if (retval == 0) - goto done; + goto found; retval = do_replace(class_dev, udev); if (retval == 0) - goto done; + goto found; - strfieldcpy(udev->name, class_dev->name); + do_kernelname(class_dev, udev); + goto done; -done: +found: /* substitute placeholder in NAME */ while (1) { char *pos = strchr(udev->name, '%'); @@ -854,6 +887,7 @@ done: break; } +done: /* mode was never set above */ if (!udev->mode) { udev->mode = get_default_mode(class_dev); -- 2.39.5