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      1 /*
      2  * Copyright 1999 Internet Business Solutions Ltd., Switzerland
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     24  * SUCH DAMAGE.
     25  *
     26  * $FreeBSD: src/usr.sbin/ppp/radius.h,v 1.22.14.1 2010/12/21 17:10:29 kensmith Exp $
     27  */
     28 
     29 #define	MPPE_POLICY_ALLOWED	1
     30 #define	MPPE_POLICY_REQUIRED	2
     31 
     32 #define	MPPE_TYPE_40BIT		2
     33 #define	MPPE_TYPE_128BIT	4
     34 
     35 #define	RPI_DEFAULT		1
     36 #define	RPI_PID			2
     37 #define	RPI_IFNUM		3
     38 #define	RPI_TUNNUM		4
     39 
     40 struct radius {
     41   struct fdescriptor desc;	/* We're a sort of (selectable) fdescriptor */
     42   struct {
     43     int fd;			/* We're selecting on this */
     44     struct rad_handle *rad;	/* Using this to talk to our lib */
     45     struct pppTimer timer;	/* for this long */
     46     struct authinfo *auth;	/* Tell this about success/failure */
     47   } cx;
     48   unsigned valid : 1;           /* Is this structure valid ? */
     49   unsigned vj : 1;              /* FRAMED Compression */
     50   struct in_addr ip;            /* FRAMED IP */
     51   struct in_addr mask;          /* FRAMED Netmask */
     52   unsigned long mtu;            /* FRAMED MTU */
     53   unsigned long sessiontime;    /* Session-Timeout */
     54   char *filterid;		/* FRAMED Filter Id */
     55   struct sticky_route *routes;  /* FRAMED Routes */
     56   char *msrepstr;		/* MS-CHAP2-Response */
     57   char *repstr;			/* Reply-Message */
     58   char *errstr;			/* Error-Message */
     59 #ifndef NOINET6
     60   uint8_t *ipv6prefix;		/* FRAMED IPv6 Prefix */
     61   struct sticky_route *ipv6routes;  /* FRAMED IPv6 Routes */
     62 #endif
     63   struct {
     64     int policy;			/* MPPE_POLICY_* */
     65     int types;			/* MPPE_TYPE_*BIT bitmask */
     66     char *recvkey;
     67     size_t recvkeylen;
     68     char *sendkey;
     69     size_t sendkeylen;
     70   } mppe;
     71   struct {
     72     char file[PATH_MAX];	/* Radius config file */
     73   } cfg;
     74   struct {
     75     struct pppTimer timer;	/* for this long */
     76     int interval;
     77   } alive;
     78   short unsigned int port_id_type;
     79 };
     80 
     81 struct radacct {
     82   struct radius *rad_parent;	/* "Parent" struct radius stored in bundle */
     83   char user_name[AUTHLEN];	/* Session User-Name */
     84   char session_id[256];		/* Unique session ID */
     85   char multi_session_id[51];	/* Unique MP session ID */
     86   int  authentic;		/* How the session has been authenticated */
     87   u_short proto;		/* Protocol number */
     88   union {
     89     struct {
     90       struct in_addr addr;
     91       struct in_addr mask;
     92     } ip;
     93 #ifndef NOINET6
     94     struct {
     95       u_char ifid[8];
     96     } ipv6;
     97 #endif
     98   } peer;
     99 };
    100 
    101 #define descriptor2radius(d) \
    102   ((d)->type == RADIUS_DESCRIPTOR ? (struct radius *)(d) : NULL)
    103 
    104 struct bundle;
    105 
    106 extern void radius_Flush(struct radius *);
    107 extern void radius_Init(struct radius *);
    108 extern void radius_Destroy(struct radius *);
    109 
    110 extern void radius_Show(struct radius *, struct prompt *);
    111 extern void radius_StartTimer(struct bundle *);
    112 extern void radius_StopTimer(struct radius *);
    113 extern int radius_Authenticate(struct radius *, struct authinfo *,
    114                                const char *, const char *, int,
    115                                const char *, int);
    116 extern void radius_Account_Set_Ip(struct radacct *, struct in_addr *,
    117 				  struct in_addr *);
    118 #ifndef NOINET6
    119 extern void radius_Account_Set_Ipv6(struct radacct *, u_char *);
    120 #endif
    121 extern void radius_Account(struct radius *, struct radacct *,
    122                            struct datalink *, int, struct pppThroughput *);
    123 
    124 /* An (int) parameter to radius_Account, from radlib.h */
    125 #if !defined(RAD_START)
    126 #define RAD_START	1
    127 #define RAD_STOP	2
    128 #endif
    129 
    130 #define RAD_ALIVE	3
    131 
    132 /* Get address from NAS pool */
    133 #define RADIUS_INADDR_POOL	htonl(0xfffffffe)	/* 255.255.255.254 */
    134