Pavel Emelyanov wrote:
The main thing that I want from the kobj mapper is to add
the mode_t on the struct kobj_map that reflects with
permissions are associated with this particular map. This
mode is to be returned via the kobj_lookup.
I use the FMODE_XXX flags to handle the permissions bits,
as I will compare these ones to the file->f_mode later.
By default all bits are set (for the initial container).
The additional things I need are kobj_remap() to change
that permission and kobj_iterate() to walk the map.
The kobj_map_fini() is the roll-back for the kobj_map_init().
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
...
@@ -153,3 +237,21 @@ struct kobj_map *kobj_map_init(kobj_probe_t *base_probe, struct mutex *lock)
p->lock = lock;
return p;
}
+
+void kobj_map_fini(struct kobj_map *map)
+{
+ int i;
+ struct probe *p, *next;
+
+ for (i = 0; i < 256; i++) {
This should be 255, shouldn't it?
+ p = map->probes[i];
+ while (p->next != NULL) {
+ next = p->next;
+ kfree(p);
+ p = next;
+ }
+ }
+
+ kfree(p);
+ kfree(map);
+}
diff --git a/include/linux/kobj_map.h b/include/linux/kobj_map.h
index bafe178..ecfe772 100644
--- a/include/linux/kobj_map.h
+++ b/include/linux/kobj_map.h
@@ -7,8 +7,13 @@ struct kobj_map;
int kobj_map(struct kobj_map *, dev_t, unsigned long, struct module *,
kobj_probe_t *, int (*)(dev_t, void *), void *);
+int kobj_remap(struct kobj_map *, dev_t, mode_t, unsigned long, struct module *,
+ kobj_probe_t *, int (*)(dev_t, void *), void *);
void kobj_unmap(struct kobj_map *, dev_t, unsigned long);
-struct kobject *kobj_lookup(struct kobj_map *, dev_t, int *);
+struct kobject *kobj_lookup(struct kobj_map *, dev_t, mode_t *, int *);
+void kobj_map_iterate(struct kobj_map *, int (*fn)(dev_t, int, mode_t, void *),
+ void *);
struct kobj_map *kobj_map_init(kobj_probe_t *, struct mutex *);
+void kobj_map_fini(struct kobj_map *);
#endif
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--
Daniel Hokka Zakrisson
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