Oap

Osmocom Authentication Protocol. More...

Functions
int	osmo_oap_decode (struct osmo_oap_message *oap_msg, const uint8_t *const_data, size_t data_len)
	Decode OAP message data. More...
void	osmo_oap_encode (struct msgb *msg, const struct osmo_oap_message *oap_msg)
	Compose OAP message data. More...

Detailed Description

Osmocom Authentication Protocol.

Function Documentation

int osmo_oap_decode	(	struct osmo_oap_message *	oap_msg,
		const uint8_t *	const_data,
		size_t	data_len
	)

Decode OAP message data.

Parameters

[out]	oap_msg	Parsed data is written to this instance.
[in]	data	Pointer to the data buffer containing the OAP message.
[in]	data_len	Length of the OAP message data.

Returns

0 on success, a negative cause value on failure.

References osmo_oap_message::autn, osmo_oap_message::autn_present, osmo_oap_message::auts, osmo_oap_message::auts_present, osmo_oap_message::cause, osmo_oap_message::client_id, data, DLOAP, GMM_CAUSE_INV_MAND_INFO, GMM_CAUSE_PROTO_ERR_UNSPEC, iei, LOGL_ERROR, LOGL_NOTICE, LOGP, osmo_oap_message::message_type, OAP_AUTN_IE, OAP_AUTS_IE, OAP_CAUSE_IE, OAP_CLIENT_ID_IE, OAP_RAND_IE, OAP_XRES_IE, osmo_decode_big_endian(), osmo_shift_tlv(), osmo_shift_v_fixed(), osmo_oap_message::rand, osmo_oap_message::rand_present, osmo_oap_message::xres, and osmo_oap_message::xres_present.

void osmo_oap_encode	(	struct msgb *	msg,
		const struct osmo_oap_message *	oap_msg
	)

Compose OAP message data.

Parameters

[out]	msg	OAP message data is appended to this message buffer.
[in]	oap_msg	Elements to encode in the message data.

References osmo_oap_message::autn, osmo_oap_message::autn_present, osmo_oap_message::auts, osmo_oap_message::auts_present, osmo_oap_message::cause, osmo_oap_message::client_id, msgb::data, msgb::l2h, osmo_oap_message::message_type, msgb_tlv_put(), msgb_v_put(), OAP_AUTN_IE, OAP_AUTS_IE, OAP_CAUSE_IE, OAP_CLIENT_ID_IE, OAP_RAND_IE, OAP_XRES_IE, OSMO_ASSERT, osmo_encode_big_endian(), osmo_oap_message::rand, osmo_oap_message::rand_present, osmo_oap_message::xres, and osmo_oap_message::xres_present.