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/*
* SYSCALL_DEFINE5(add_key, const char __user *, _type,
const char __user *, _description,
const void __user *, _payload,
size_t, plen,
key_serial_t, ringid)
*
* On success add_key() returns the serial number of the key it created or updated.
* On error, the value -1 will be returned and errno will have been set to an appropriate error.
*/
#include <linux/keyctl.h>
#include "random.h"
#include "sanitise.h"
static const char *keytypes[] = {
"user", "keyring", "big_key",
};
static void sanitise_add_key(struct syscallrecord *rec)
{
rec->a1 = (unsigned long) RAND_ARRAY(keytypes);
}
static unsigned long addkey_ringids[] = {
KEY_SPEC_THREAD_KEYRING,
KEY_SPEC_PROCESS_KEYRING,
KEY_SPEC_SESSION_KEYRING,
KEY_SPEC_USER_KEYRING,
KEY_SPEC_USER_SESSION_KEYRING,
KEY_SPEC_GROUP_KEYRING,
KEY_SPEC_REQKEY_AUTH_KEY,
KEY_SPEC_REQUESTOR_KEYRING,
};
struct syscallentry syscall_add_key = {
.name = "add_key",
.num_args = 5,
.arg1name = "_type",
.arg1type = ARG_ADDRESS,
.arg2name = "_description",
.arg2type = ARG_ADDRESS,
.arg3name = "_payload",
.arg3type = ARG_ADDRESS,
.arg4name = "plen",
.arg4type = ARG_LEN,
.arg5name = "ringid",
.arg5type = ARG_OP,
.arg5list = ARGLIST(addkey_ringids),
.rettype = RET_KEY_SERIAL_T,
.sanitise = sanitise_add_key,
};
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