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authorgreg@kroah.com <greg@kroah.com>2003-12-03 18:33:58 -0800
committerGreg KH <gregkh@suse.de>2005-04-26 21:13:05 -0700
commit61219c756ad0ad622decaf81b92a558ba2a1bc59 (patch)
tree89ef5f166351de968a61e445ec90eb624e5fe04d
parent206d3623c6454b6f34002d0d27e9aa2d00e4de06 (diff)
[PATCH] fix permission handling logic
Now we can handle wildcards properly within the permission file.
-rw-r--r--namedev.c129
-rw-r--r--namedev.h10
-rw-r--r--namedev_parse.c57
-rw-r--r--test/udev.permissions2
4 files changed, 103 insertions, 95 deletions
diff --git a/namedev.c b/namedev.c
index f4c263f5bc..4e0476c6e3 100644
--- a/namedev.c
+++ b/namedev.c
@@ -39,6 +39,7 @@
#include "klibc_fixups.h"
LIST_HEAD(config_device_list);
+LIST_HEAD(perm_device_list);
/* compare string with pattern (supports * ? [0-9] [!A-Z]) */
static int strcmp_pattern(const char *p, const char *s)
@@ -113,7 +114,6 @@ int add_config_dev(struct config_device *new_dev)
if (strncmp(dev->bus, new_dev->bus, sizeof(dev->name)))
continue;
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);
@@ -121,8 +121,6 @@ int add_config_dev(struct config_device *new_dev)
copy_string(dev, new_dev, place);
copy_string(dev, new_dev, kernel_name);
copy_string(dev, new_dev, exec_program);
- copy_string(dev, new_dev, owner);
- copy_string(dev, new_dev, group);
return 0;
}
@@ -136,6 +134,46 @@ int add_config_dev(struct config_device *new_dev)
return 0;
}
+int add_perm_dev(struct perm_device *new_dev)
+{
+ struct list_head *tmp;
+ struct perm_device *tmp_dev;
+
+ /* update the values if we already have the device */
+ list_for_each(tmp, &perm_device_list) {
+ struct perm_device *dev = list_entry(tmp, struct perm_device, node);
+ if (strcmp_pattern(new_dev->name, dev->name))
+ continue;
+ copy_var(dev, new_dev, mode);
+ copy_string(dev, new_dev, owner);
+ copy_string(dev, new_dev, group);
+ return 0;
+ }
+
+ /* not found, add new structure to the perm list */
+ tmp_dev = malloc(sizeof(*tmp_dev));
+ if (!tmp_dev)
+ return -ENOMEM;
+ memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
+ list_add_tail(&tmp_dev->node, &perm_device_list);
+ //dump_perm_dev(tmp_dev);
+ return 0;
+}
+
+static struct perm_device *find_perm(char *name)
+{
+ struct list_head *tmp;
+ struct perm_device *perm = NULL;
+
+ list_for_each(tmp, &perm_device_list) {
+ perm = list_entry(tmp, struct perm_device, node);
+ if (strcmp_pattern(perm->name, name))
+ continue;
+ return perm;
+ }
+ return NULL;
+}
+
static mode_t get_default_mode(struct sysfs_class_device *class_dev)
{
mode_t mode = 0600; /* default to owner rw only */
@@ -328,15 +366,8 @@ static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev
if (strcmp_pattern(dev->id, udev->callout_value) != 0)
continue;
strfieldcpy(udev->name, dev->name);
- if (dev->mode != 0) {
- udev->mode = dev->mode;
- strfieldcpy(udev->owner, dev->owner);
- strfieldcpy(udev->group, dev->group);
- }
- dbg("callout returned matching value '%s', '%s' becomes '%s'"
- " - owner='%s', group='%s', mode=%#o",
- dev->id, class_dev->name, udev->name,
- dev->owner, dev->group, dev->mode);
+ dbg("callout returned matching value '%s', '%s' becomes '%s'",
+ dev->id, class_dev->name, udev->name);
return 0;
}
return -ENODEV;
@@ -382,15 +413,8 @@ label_found:
continue;
strfieldcpy(udev->name, dev->name);
- if (dev->mode != 0) {
- udev->mode = dev->mode;
- strfieldcpy(udev->owner, dev->owner);
- strfieldcpy(udev->group, dev->group);
- }
- dbg("found matching attribute '%s', '%s' becomes '%s' "
- "- owner='%s', group='%s', mode=%#o",
- dev->sysfs_file, class_dev->name, udev->name,
- dev->owner, dev->group, dev->mode);
+ dbg("found matching attribute '%s', '%s' becomes '%s' ",
+ dev->sysfs_file, class_dev->name, udev->name);
return 0;
}
@@ -434,15 +458,8 @@ static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev,
if (!found)
continue;
strfieldcpy(udev->name, dev->name);
- if (dev->mode != 0) {
- udev->mode = dev->mode;
- strfieldcpy(udev->owner, dev->owner);
- strfieldcpy(udev->group, dev->group);
- }
- dbg("found matching id '%s', '%s' becomes '%s'"
- " - owner='%s', group ='%s', mode=%#o",
- dev->id, class_dev->name, udev->name,
- dev->owner, dev->group, dev->mode);
+ dbg("found matching id '%s', '%s' becomes '%s'",
+ dev->id, class_dev->name, udev->name);
return 0;
}
return -ENODEV;
@@ -486,15 +503,8 @@ static int do_topology(struct sysfs_class_device *class_dev, struct udevice *ude
continue;
strfieldcpy(udev->name, dev->name);
- if (dev->mode != 0) {
- udev->mode = dev->mode;
- strfieldcpy(udev->owner, dev->owner);
- strfieldcpy(udev->group, dev->group);
- }
- dbg("found matching place '%s', '%s' becomes '%s'"
- " - owner='%s', group ='%s', mode=%#o",
- dev->place, class_dev->name, udev->name,
- dev->owner, dev->group, dev->mode);
+ dbg("found matching place '%s', '%s' becomes '%s'",
+ dev->place, class_dev->name, udev->name);
return 0;
}
return -ENODEV;
@@ -515,15 +525,7 @@ static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev
continue;
strfieldcpy(udev->name, dev->name);
- if (dev->mode != 0) {
- udev->mode = dev->mode;
- strfieldcpy(udev->owner, dev->owner);
- strfieldcpy(udev->group, dev->group);
- }
- dbg("found name, '%s' becomes '%s'"
- " - owner='%s', group='%s', mode = %#o",
- dev->kernel_name, udev->name,
- dev->owner, dev->group, dev->mode);
+ dbg("found name, '%s' becomes '%s'", dev->kernel_name, udev->name);
return 0;
}
@@ -532,24 +534,8 @@ static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev
static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev)
{
- struct config_device *dev;
- struct list_head *tmp;
- int len;
-
+ /* heh, this is pretty simple... */
strfieldcpy(udev->name, class_dev->name);
- /* look for permissions */
- list_for_each(tmp, &config_device_list) {
- dev = list_entry(tmp, struct config_device, node);
- len = strlen(dev->name);
- if (strcmp_pattern(dev->name, class_dev->name))
- continue;
- if (dev->mode != 0) {
- dbg("found permissions for '%s'", class_dev->name);
- udev->mode = dev->mode;
- strfieldcpy(udev->owner, dev->owner);
- strfieldcpy(udev->group, dev->group);
- }
- }
}
int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *udev)
@@ -558,6 +544,7 @@ int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *ud
struct sysfs_class_device *class_dev_parent = NULL;
int retval = 0;
char *temp = NULL;
+ struct perm_device *perm;
udev->mode = 0;
@@ -632,12 +619,19 @@ found:
apply_format(udev, udev->name);
done:
- /* mode was never set above */
- if (!udev->mode) {
+ perm = find_perm(udev->name);
+ if (perm) {
+ udev->mode = perm->mode;
+ strfieldcpy(udev->owner, perm->owner);
+ strfieldcpy(udev->group, perm->group);
+ } else {
+ /* no matching perms found :( */
udev->mode = get_default_mode(class_dev);
udev->owner[0] = 0x00;
udev->group[0] = 0x00;
}
+ dbg("name, '%s' is going to have owner='%s', group='%s', mode = %#o",
+ udev->name, udev->owner, udev->group, udev->mode);
if (class_dev_parent)
sysfs_close_class_device(class_dev_parent);
@@ -658,5 +652,6 @@ int namedev_init(void)
return retval;
dump_config_dev_list();
+ dump_perm_dev_list();
return retval;
}
diff --git a/namedev.h b/namedev.h
index 94fdf4ac91..f7b8a67667 100644
--- a/namedev.h
+++ b/namedev.h
@@ -62,8 +62,12 @@ struct config_device {
char place[PLACE_SIZE];
char kernel_name[NAME_SIZE];
char exec_program[FILE_SIZE];
+ char name[NAME_SIZE];
+};
+
+struct perm_device {
+ struct list_head node;
- /* what to set the device to */
char name[NAME_SIZE];
char owner[OWNER_SIZE];
char group[GROUP_SIZE];
@@ -71,6 +75,7 @@ struct config_device {
};
extern struct list_head config_device_list;
+extern struct list_head perm_device_list;
extern int namedev_init(void);
extern int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *dev);
@@ -78,8 +83,11 @@ extern int namedev_init_permissions(void);
extern int namedev_init_rules(void);
extern int add_config_dev(struct config_device *new_dev);
+extern int add_perm_dev(struct perm_device *new_dev);
extern void dump_config_dev(struct config_device *dev);
extern void dump_config_dev_list(void);
+extern void dump_perm_dev(struct perm_device *dev);
+extern void dump_perm_dev_list(void);
extern int get_pair(char **orig_string, char **left, char **right);
diff --git a/namedev_parse.c b/namedev_parse.c
index a6a7d4b62e..5cb3a3eb1d 100644
--- a/namedev_parse.c
+++ b/namedev_parse.c
@@ -88,39 +88,27 @@ void dump_config_dev(struct config_device *dev)
{
switch (dev->type) {
case KERNEL_NAME:
- dbg_parse("KERNEL name='%s' ,"
- "owner='%s', group='%s', mode=%#o",
- dev->name, dev->owner, dev->group, dev->mode);
+ dbg_parse("KERNEL name='%s'", dev->name);
break;
case LABEL:
- dbg_parse("LABEL name='%s', bus='%s', sysfs_file='%s', sysfs_value='%s', "
- "owner='%s', group='%s', mode=%#o",
- dev->name, dev->bus, dev->sysfs_file, dev->sysfs_value,
- dev->owner, dev->group, dev->mode);
+ dbg_parse("LABEL name='%s', bus='%s', sysfs_file='%s', sysfs_value='%s'",
+ dev->name, dev->bus, dev->sysfs_file, dev->sysfs_value);
break;
case NUMBER:
- dbg_parse("NUMBER name='%s', bus='%s', id='%s', "
- "owner='%s', group='%s', mode=%#o",
- dev->name, dev->bus, dev->id,
- dev->owner, dev->group, dev->mode);
+ dbg_parse("NUMBER name='%s', bus='%s', id='%s'",
+ dev->name, dev->bus, dev->id);
break;
case TOPOLOGY:
- dbg_parse("TOPOLOGY name='%s', bus='%s', place='%s', "
- "owner='%s', group='%s', mode=%#o",
- dev->name, dev->bus, dev->place,
- dev->owner, dev->group, dev->mode);
+ dbg_parse("TOPOLOGY name='%s', bus='%s', place='%s'",
+ dev->name, dev->bus, dev->place);
break;
case REPLACE:
- dbg_parse("REPLACE name=%s, kernel_name=%s, "
- "owner='%s', group='%s', mode=%#o",
- dev->name, dev->kernel_name,
- dev->owner, dev->group, dev->mode);
+ dbg_parse("REPLACE name=%s, kernel_name=%s",
+ dev->name, dev->kernel_name);
break;
case CALLOUT:
- dbg_parse("CALLOUT name='%s', bus='%s', program='%s', id='%s', "
- "owner='%s', group='%s', mode=%#o",
- dev->name, dev->bus, dev->exec_program, dev->id,
- dev->owner, dev->group, dev->mode);
+ dbg_parse("CALLOUT name='%s', bus='%s', program='%s', id='%s'",
+ dev->name, dev->bus, dev->exec_program, dev->id);
break;
default:
dbg_parse("unknown type of method");
@@ -136,7 +124,24 @@ void dump_config_dev_list(void)
dump_config_dev(dev);
}
}
-
+
+void dump_perm_dev(struct perm_device *dev)
+{
+ dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
+ dev->name, dev->owner, dev->group, dev->mode);
+}
+
+void dump_perm_dev_list(void)
+{
+ struct list_head *tmp;
+
+ list_for_each(tmp, &perm_device_list) {
+ struct perm_device *dev = list_entry(tmp, struct perm_device, node);
+ dump_perm_dev(dev);
+ }
+}
+
+
int namedev_init_rules(void)
{
char line[255];
@@ -344,7 +349,7 @@ int namedev_init_permissions(void)
char *temp2;
FILE *fd;
int retval = 0;
- struct config_device dev;
+ struct perm_device dev;
fd = fopen(udev_permissions_filename, "r");
if (fd != NULL) {
@@ -407,7 +412,7 @@ int namedev_init_permissions(void)
dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
dev.name, dev.owner, dev.group,
dev.mode);
- retval = add_config_dev(&dev);
+ retval = add_perm_dev(&dev);
if (retval) {
dbg("add_config_dev returned with error %d", retval);
goto exit;
diff --git a/test/udev.permissions b/test/udev.permissions
index d14082ac05..44ef3d43e5 100644
--- a/test/udev.permissions
+++ b/test/udev.permissions
@@ -3,4 +3,4 @@ ttyUSB0:root:uucp:0660
ttyUSB1:root:uucp:0666
visor:500:500:0666
dsp1:::0666
-
+boot_disk?:::0666