/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright 1998 Juniper Networks, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _RADLIB_H_
#define _RADLIB_H_

#include <sys/types.h>
#include <netinet/in.h>

/* Limits */
#define RAD_MAX_ATTR_LEN                253

/* Message types */
#define RAD_ACCESS_REQUEST              1
#define RAD_ACCESS_ACCEPT               2
#define RAD_ACCESS_REJECT               3
#define RAD_ACCOUNTING_REQUEST          4
#define RAD_ACCOUNTING_RESPONSE         5
#define RAD_ACCESS_CHALLENGE            11
#define RAD_DISCONNECT_REQUEST          40
#define RAD_DISCONNECT_ACK              41
#define RAD_DISCONNECT_NAK              42
#define RAD_COA_REQUEST                 43
#define RAD_COA_ACK                     44
#define RAD_COA_NAK                     45

/* Attribute types and values */
#define RAD_USER_NAME                   1       /* String */
#define RAD_USER_PASSWORD               2       /* String */
#define RAD_CHAP_PASSWORD               3       /* String */
#define RAD_NAS_IP_ADDRESS              4       /* IP address */
#define RAD_NAS_PORT                    5       /* Integer */
#define RAD_SERVICE_TYPE                6       /* Integer */
        #define RAD_LOGIN                       1
        #define RAD_FRAMED                      2
        #define RAD_CALLBACK_LOGIN              3
        #define RAD_CALLBACK_FRAMED             4
        #define RAD_OUTBOUND                    5
        #define RAD_ADMINISTRATIVE              6
        #define RAD_NAS_PROMPT                  7
        #define RAD_AUTHENTICATE_ONLY           8
        #define RAD_CALLBACK_NAS_PROMPT         9
#define RAD_FRAMED_PROTOCOL             7       /* Integer */
        #define RAD_PPP                         1
        #define RAD_SLIP                        2
        #define RAD_ARAP                        3       /* Appletalk */
        #define RAD_GANDALF                     4
        #define RAD_XYLOGICS                    5
#define RAD_FRAMED_IP_ADDRESS           8       /* IP address */
#define RAD_FRAMED_IP_NETMASK           9       /* IP address */
#define RAD_FRAMED_ROUTING              10      /* Integer */
#define RAD_FILTER_ID                   11      /* String */
#define RAD_FRAMED_MTU                  12      /* Integer */
#define RAD_FRAMED_COMPRESSION          13      /* Integer */
        #define RAD_COMP_NONE                   0
        #define RAD_COMP_VJ                     1
        #define RAD_COMP_IPXHDR                 2
#define RAD_LOGIN_IP_HOST               14      /* IP address */
#define RAD_LOGIN_SERVICE               15      /* Integer */
#define RAD_LOGIN_TCP_PORT              16      /* Integer */
     /* unassiged                       17 */
#define RAD_REPLY_MESSAGE               18      /* String */
#define RAD_CALLBACK_NUMBER             19      /* String */
#define RAD_CALLBACK_ID                 20      /* String */
     /* unassiged                       21 */
#define RAD_FRAMED_ROUTE                22      /* String */
#define RAD_FRAMED_IPX_NETWORK          23      /* IP address */
#define RAD_STATE                       24      /* String */
#define RAD_CLASS                       25      /* Integer */
#define RAD_VENDOR_SPECIFIC             26      /* Integer */
#define RAD_SESSION_TIMEOUT             27      /* Integer */
#define RAD_IDLE_TIMEOUT                28      /* Integer */
#define RAD_TERMINATION_ACTION          29      /* Integer */
#define RAD_CALLED_STATION_ID           30      /* String */
#define RAD_CALLING_STATION_ID          31      /* String */
#define RAD_NAS_IDENTIFIER              32      /* String */
#define RAD_PROXY_STATE                 33      /* Integer */
#define RAD_LOGIN_LAT_SERVICE           34      /* Integer */
#define RAD_LOGIN_LAT_NODE              35      /* Integer */
#define RAD_LOGIN_LAT_GROUP             36      /* Integer */
#define RAD_FRAMED_APPLETALK_LINK       37      /* Integer */
#define RAD_FRAMED_APPLETALK_NETWORK    38      /* Integer */
#define RAD_FRAMED_APPLETALK_ZONE       39      /* Integer */
     /* reserved for accounting         40-59 */
#define RAD_ACCT_INPUT_GIGAWORDS        52
#define RAD_ACCT_OUTPUT_GIGAWORDS       53

#define RAD_CHAP_CHALLENGE              60      /* String */
#define RAD_NAS_PORT_TYPE               61      /* Integer */
        #define RAD_ASYNC                       0
        #define RAD_SYNC                        1
        #define RAD_ISDN_SYNC                   2
        #define RAD_ISDN_ASYNC_V120             3
        #define RAD_ISDN_ASYNC_V110             4
        #define RAD_VIRTUAL                     5
        #define RAD_PIAFS                       6
        #define RAD_HDLC_CLEAR_CHANNEL          7
        #define RAD_X_25                        8
        #define RAD_X_75                        9
        #define RAD_G_3_FAX                     10
        #define RAD_SDSL                        11
        #define RAD_ADSL_CAP                    12
        #define RAD_ADSL_DMT                    13
        #define RAD_IDSL                        14
        #define RAD_ETHERNET                    15
        #define RAD_XDSL                        16
        #define RAD_CABLE                       17
        #define RAD_WIRELESS_OTHER              18
        #define RAD_WIRELESS_IEEE_802_11        19
#define RAD_PORT_LIMIT                  62      /* Integer */
#define RAD_LOGIN_LAT_PORT              63      /* Integer */
#define RAD_CONNECT_INFO                77      /* String */
#define RAD_EAP_MESSAGE                 79      /* Octets */
#define RAD_MESSAGE_AUTHENTIC           80      /* Octets */
#define RAD_ACCT_INTERIM_INTERVAL       85      /* Integer */
#define RAD_NAS_IPV6_ADDRESS            95      /* IPv6 address */
#define RAD_FRAMED_INTERFACE_ID         96      /* 8 octets */
#define RAD_FRAMED_IPV6_PREFIX          97      /* Octets */
#define RAD_LOGIN_IPV6_HOST             98      /* IPv6 address */
#define RAD_FRAMED_IPV6_ROUTE           99      /* String */
#define RAD_FRAMED_IPV6_POOL            100     /* String */

/* Accounting attribute types and values */
#define RAD_ACCT_STATUS_TYPE            40      /* Integer */
        #define RAD_START                       1
        #define RAD_STOP                        2
        #define RAD_UPDATE                      3
        #define RAD_ACCOUNTING_ON               7
        #define RAD_ACCOUNTING_OFF              8
#define RAD_ACCT_DELAY_TIME             41      /* Integer */
#define RAD_ACCT_INPUT_OCTETS           42      /* Integer */
#define RAD_ACCT_OUTPUT_OCTETS          43      /* Integer */
#define RAD_ACCT_SESSION_ID             44      /* String */
#define RAD_ACCT_AUTHENTIC              45      /* Integer */
        #define RAD_AUTH_RADIUS                 1
        #define RAD_AUTH_LOCAL                  2
        #define RAD_AUTH_REMOTE                 3
#define RAD_ACCT_SESSION_TIME           46      /* Integer */
#define RAD_ACCT_INPUT_PACKETS          47      /* Integer */
#define RAD_ACCT_OUTPUT_PACKETS         48      /* Integer */
#define RAD_ACCT_TERMINATE_CAUSE        49      /* Integer */
        #define RAD_TERM_USER_REQUEST           1
        #define RAD_TERM_LOST_CARRIER           2
        #define RAD_TERM_LOST_SERVICE           3
        #define RAD_TERM_IDLE_TIMEOUT           4
        #define RAD_TERM_SESSION_TIMEOUT        5
        #define RAD_TERM_ADMIN_RESET            6
        #define RAD_TERM_ADMIN_REBOOT           7
        #define RAD_TERM_PORT_ERROR             8
        #define RAD_TERM_NAS_ERROR              9
        #define RAD_TERM_NAS_REQUEST            10
        #define RAD_TERM_NAS_REBOOT             11
        #define RAD_TERM_PORT_UNNEEDED          12
        #define RAD_TERM_PORT_PREEMPTED         13
        #define RAD_TERM_PORT_SUSPENDED         14
        #define RAD_TERM_SERVICE_UNAVAILABLE    15
        #define RAD_TERM_CALLBACK               16
        #define RAD_TERM_USER_ERROR             17
        #define RAD_TERM_HOST_REQUEST           18
#define RAD_ACCT_MULTI_SESSION_ID       50      /* String */
#define RAD_ACCT_LINK_COUNT             51      /* Integer */

#define RAD_ERROR_CAUSE                 101     /* Integer */

struct rad_handle;
struct timeval;

__BEGIN_DECLS
struct rad_handle       *rad_acct_open(void);
int                      rad_add_server(struct rad_handle *,
                            const char *, int, const char *, int, int);
int                      rad_add_server_ex(struct rad_handle *,
                            const char *, int, const char *, int, int,
                            int, struct in_addr *);
struct rad_handle       *rad_auth_open(void);
void                     rad_bind_to(struct rad_handle *, in_addr_t);
void                     rad_close(struct rad_handle *);
int                      rad_config(struct rad_handle *, const char *);
int                      rad_continue_send_request(struct rad_handle *, int,
                            int *, struct timeval *);
int                      rad_create_request(struct rad_handle *, int);
int                      rad_create_response(struct rad_handle *, int);
struct in_addr           rad_cvt_addr(const void *);
struct in6_addr          rad_cvt_addr6(const void *);
u_int32_t                rad_cvt_int(const void *);
char                    *rad_cvt_string(const void *, size_t);
int                      rad_get_attr(struct rad_handle *, const void **,
                            size_t *);
int                      rad_init_send_request(struct rad_handle *, int *,
                            struct timeval *);
struct rad_handle       *rad_open(void);  /* Deprecated, == rad_auth_open */
int                      rad_put_addr(struct rad_handle *, int, struct in_addr);
int                      rad_put_addr6(struct rad_handle *, int, struct in6_addr);
int                      rad_put_attr(struct rad_handle *, int,
                            const void *, size_t);
int                      rad_put_int(struct rad_handle *, int, u_int32_t);
int                      rad_put_string(struct rad_handle *, int,
                            const char *);
int                      rad_put_message_authentic(struct rad_handle *);
ssize_t                  rad_request_authenticator(struct rad_handle *, char *,
                            size_t);
int                      rad_receive_request(struct rad_handle *);
int                      rad_send_request(struct rad_handle *);
int                      rad_send_response(struct rad_handle *);
struct rad_handle       *rad_server_open(int fd);
const char              *rad_server_secret(struct rad_handle *);
const char              *rad_strerror(struct rad_handle *);
u_char                  *rad_demangle(struct rad_handle *, const void *,
                            size_t);

__END_DECLS

#endif /* _RADLIB_H_ */