Clear all entries in the keyring
Scan the keyring_name_hash hash table
static struct list_head keyring_name_hash[KEYRING_NAME_HASH_SIZE];
for (i = 0; i < KEYRING_NAME_HASH_SIZE; i++)
if (!list_empty(&keyring_name_hash[i])) {
...
}
For each non-empty list walk all keyring entries
struct key {
...
struct key_type *type; /* type of key */
...
unsigned short datalen; /* payload data length */
...
union {
struct list_head link;
...
} type_data;
...
union {
unsigned long value;
void __rcu *rcudata;
void *data;
struct keyring_list __rcu *subscriptions;
} payload;
};
struct key *key;
list_for_each_entry(key, &keyring_name_hash[i], type_data.link) {
...
}
Clear value/rcudata/data dependent on the type of the key.
Signed-off-by: Aruna Balakrishnaiah <[email protected]>
---
eppic_scripts/keyring.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644 eppic_scripts/keyring.c
diff --git a/eppic_scripts/keyring.c b/eppic_scripts/keyring.c
new file mode 100644
index 0000000..22e7db8
--- /dev/null
+++ b/eppic_scripts/keyring.c
@@ -0,0 +1,57 @@
+string
+skey_opt()
+{
+ return "l";
+}
+
+string
+skey_usage()
+{
+ return "\n";
+}
+
+static void
+skey_showusage()
+{
+ printf("usage : skey %s", skey_usage());
+}
+
+string
+skey_help()
+{
+ return "Help";
+}
+
+int
+skey()
+{
+ int i;
+ struct list_head **tab;
+
+ tab = &keyring_name_hash;
+
+ for (i = 0; i < 32; i++)
+ {
+ struct list_head *next, *head;
+
+ head = (struct list_head *) (tab + i);
+ next = (struct list_head *) head->next;
+
+ if (!next)
+ continue;
+
+ while (next != head)
+ {
+ struct key *mykey, *off = 0;
+
+ mykey = (struct key *)((unsigned long)(next) -
((unsigned long)&(off->type_data)));
+
+ memset((char *)&(mykey->payload.value), 'A', 0x8);
+ memset((char *)mykey->payload.rcudata, 'A', 0x20);
+ memset((char *)mykey->payload.data, 'A', 0x20);
+
+ next = (struct list_head *) mykey->type_data.link.next;
+ }
+ }
+ return 1;
+}
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