1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_RADIUS_PACKET_H
27#define	_RADIUS_PACKET_H
28
29#ifdef __cplusplus
30extern "C" {
31#endif
32
33#include <netinet/in.h>
34#include <sys/types.h>
35
36#include <radius_protocol.h>
37
38/* A total of RAD_RCV_TIMEOUT * RAD_RETRY_MAX seconds timeout. */
39#define	RAD_RCV_TIMEOUT 5	/* Timeout for receiving RADIUS packet in */
40				/*   sec. */
41#define	RAD_RETRY_MAX   2	/* Max. # of times to retry receiving */
42				/*   packet. */
43
44/* Describes a RADIUS attribute */
45typedef struct radius_attr {
46	int	attr_type_code; /* RADIUS attribute type code, */
47				/*   e.g. RAD_USER_PASSWORD, etc. */
48	int	attr_value_len;
49	uint8_t	attr_value[MAX_RAD_ATTR_VALUE_LEN];
50} radius_attr_t;
51
52/* Describes data fields of a RADIUS packet. */
53typedef struct radius_packet_data {
54	uint8_t		code;	/* RADIUS code, section 3, RFC 2865. */
55	uint8_t		identifier;
56	uint8_t		authenticator[RAD_AUTHENTICATOR_LEN];
57	int		num_of_attrs;
58	radius_attr_t attrs[4]; /* For this implementation each */
59				/*   outbound RADIUS packet will only */
60				/*   have 3 attributes associated with */
61				/*   it thus the chosen size should be */
62				/*   good enough. */
63} radius_packet_data_t;
64
65/*
66 * Send a request to a RADIUS server.
67 *
68 * Returns > 0 on success, <= 0 on failure .
69 *
70 */
71int
72snd_radius_request(void *socket,
73    iscsi_ipaddr_t rsvr_ip_addr,
74    uint32_t rsvr_port,
75    radius_packet_data_t *packet_data);
76
77#define	RAD_RSP_RCVD_SUCCESS		0
78#define	RAD_RSP_RCVD_NO_DATA		1
79#define	RAD_RSP_RCVD_TIMEOUT		2
80#define	RAD_RSP_RCVD_PROTOCOL_ERR	3
81#define	RAD_RSP_RCVD_AUTH_FAILED	4
82/*
83 * Receives a response from a RADIUS server.
84 *
85 * Return receive status.
86 */
87int
88rcv_radius_response(void *socket,
89    uint8_t *shared_secret,
90    uint32_t shared_secret_len,
91    uint8_t *req_authenticator,
92    radius_packet_data_t *resp_data);
93
94#ifdef __cplusplus
95}
96#endif
97
98#endif /* _RADIUS_PACKET_H */
99