#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/err.h>
+#include <keys/user-type.h>
#include <asm/uaccess.h>
#include "internal.h"
-static int user_instantiate(struct key *key, const void *data, size_t datalen);
-static int user_duplicate(struct key *key, const struct key *source);
-static int user_update(struct key *key, const void *data, size_t datalen);
-static int user_match(const struct key *key, const void *criterion);
-static void user_destroy(struct key *key);
-static void user_describe(const struct key *user, struct seq_file *m);
-static long user_read(const struct key *key,
- char __user *buffer, size_t buflen);
-
/*
* user defined keys take an arbitrary string as the description and an
* arbitrary blob of data as the payload
.read = user_read,
};
-struct user_key_payload {
- struct rcu_head rcu; /* RCU destructor */
- unsigned short datalen; /* length of this data */
- char data[0]; /* actual data */
-};
-
EXPORT_SYMBOL_GPL(key_type_user);
/*****************************************************************************/
/*
* instantiate a user defined key
*/
-static int user_instantiate(struct key *key, const void *data, size_t datalen)
+int user_instantiate(struct key *key, const void *data, size_t datalen)
{
struct user_key_payload *upayload;
int ret;
rcu_assign_pointer(key->payload.data, upayload);
ret = 0;
- error:
+error:
return ret;
} /* end user_instantiate() */
+EXPORT_SYMBOL_GPL(user_instantiate);
+
/*****************************************************************************/
/*
* duplicate a user defined key
* - both keys' semaphores are locked against further modification
* - the new key cannot yet be accessed
*/
-static int user_duplicate(struct key *key, const struct key *source)
+int user_duplicate(struct key *key, const struct key *source)
{
struct user_key_payload *upayload, *spayload;
int ret;
} /* end user_duplicate() */
+EXPORT_SYMBOL_GPL(user_duplicate);
+
/*****************************************************************************/
/*
* dispose of the old data from an updated user defined key
* update a user defined key
* - the key's semaphore is write-locked
*/
-static int user_update(struct key *key, const void *data, size_t datalen)
+int user_update(struct key *key, const void *data, size_t datalen)
{
struct user_key_payload *upayload, *zap;
int ret;
call_rcu(&zap->rcu, user_update_rcu_disposal);
- error:
+error:
return ret;
} /* end user_update() */
+EXPORT_SYMBOL_GPL(user_update);
+
/*****************************************************************************/
/*
* match users on their name
*/
-static int user_match(const struct key *key, const void *description)
+int user_match(const struct key *key, const void *description)
{
return strcmp(key->description, description) == 0;
} /* end user_match() */
+EXPORT_SYMBOL_GPL(user_match);
+
/*****************************************************************************/
/*
* dispose of the data dangling from the corpse of a user
*/
-static void user_destroy(struct key *key)
+void user_destroy(struct key *key)
{
struct user_key_payload *upayload = key->payload.data;
} /* end user_destroy() */
+EXPORT_SYMBOL_GPL(user_destroy);
+
/*****************************************************************************/
/*
* describe the user key
*/
-static void user_describe(const struct key *key, struct seq_file *m)
+void user_describe(const struct key *key, struct seq_file *m)
{
seq_puts(m, key->description);
} /* end user_describe() */
+EXPORT_SYMBOL_GPL(user_describe);
+
/*****************************************************************************/
/*
* read the key data
* - the key's semaphore is read-locked
*/
-static long user_read(const struct key *key,
- char __user *buffer, size_t buflen)
+long user_read(const struct key *key, char __user *buffer, size_t buflen)
{
struct user_key_payload *upayload;
long ret;
return ret;
} /* end user_read() */
+
+EXPORT_SYMBOL_GPL(user_read);