modem_key_mgmt_write()

int modem_key_mgmt_write	(	nrf_sec_tag_t	sec_tag,
		enum modem_key_mgmt_cred_type	cred_type,
		const void *	buf,
		size_t	len
	)

#include <include/modem/modem_key_mgmt.h>

Write or update a credential in persistent storage.

Store the credential and associate it with the given security tag, which can later be used to access it.

Note

If used when the LTE link is active, the function will return an error and the key will not be written.

Parameters

[in]	sec_tag	Security tag to associate with this credential.
[in]	cred_type	The credential type.
[in]	buf	Buffer containing the credential data.
[in]	len	Length of the buffer.

Return values

0	On success.
-EINVAL	Invalid parameters.
-ENOMEM	Not enough memory to store the credential.
-ENOENT	The security tag sec_tag is invalid.
-EACCES	Access to credential not allowed.
-EALREADY	Credential already exists (and can't be overwritten).
-EPERM	Not permitted when the LTE link is active.
-ECANCELED	Canceled because voltage is low (power off warning).