keyctl_instantiate_key

Name:Instantiate a key with the specified multipart payload and link the key into* the destination keyring if one is given.* The caller must have the appropriate instantiation permit set for this to* work (see keyctl_assume_authority)

Proto:long keyctl_instantiate_key_iov(key_serial_t id, const struct iovec __user *_payload_iov, unsigned ioc, key_serial_t ringid)

Type:long

Parameter:

Type	Parameter	Name
key_serial_t	id
const struct iovec __user *	_payload_iov
unsigned	ioc
key_serial_t	ringid

1211

iov = iovstack

1215

If Not _payload_iov Then ioc = 0

1218

ret = mport_iovec() - Copy an array of &struct iovec from userspace* into the kernel, check that it is valid, and initialize a new* &struct iov_iter iterator to access it.*@type: One of %READ or %WRITE.*@uvector: Pointer to the userspace array.

1220

If ret < 0 Then Return ret

1222

ret = Instantiate a key with the specified payload and link the key into the* destination keyring if one is given.* The caller must have the appropriate instantiation permit set for this to* work (see keyctl_assume_authority). No other permissions are required.

1223

kfree(iov)

1224

Return ret

**Caller**
Name	Describe
SYSCALL_DEFINE5	The key control system call

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