brp_secured_send_frm()

BRP_LIB brp_errcode brp_secured_send_frm	(	brp_protocol	protocol,
		int	security_level,
		int	sec_mode,
		brp_sec_key	key,
		brp_sec_iv	iv,
		int	cmd_code,
		brp_buf	param_buf,
		size_t	param_len,
		brp_time	cmd_timeout,
		int	mode
	)

Sends an encrypted command.

This command is only for low-level usage. Instead of using it, it is recommended to use the high-level wrapper brp_create_secure_channel()

Parameters

protocol	device against which the library shall authenticate
security_level	security level that shall be authenticated
sec_mode	see BRP_SECMODE_ constants. By default BRP_SECMODE_STD
key	the key that shall be used to establish a secure channel.
iv	next IV (has to be initialized to 00 ... 00 00). Is only relevant if BRP_SECMODE_STATELESS is not set (otherwise may be NULL). ATTENTION: This value will change and the changed value has to be passed to next brp_secured_recv_frm()!!!
cmd_code	A 16bit code identifiying the exact command to run (bits 0-7 are "command code", bits 8-15 are "device code")
param_buf	A buffer where command parameter are stored in serialized form. If NULL, it will be ignored.
param_len	Length of 'param_buf' in bytes.
cmd_timeout	Maximum time to wait until command is executed. If the command is not run within this time a BRP_ERR_CMD_TIMEOUT is returned.
mode	has to be one of the BRP_MODE_* constants. by default BRP_MODE_STD could be used.