Simple implementation of experimental radius client. More...

Files
file	radius.c
	Simple radius client implementation.

Data Structures
struct	radius_packet
	Radius Packet. More...

struct	radius_session
	Radius session. More...

struct	radius_connection
	Radius connection. More...

struct	radius_server
	Radius Server. More...

Macros
#define	RAD_AUTH_HDR_LEN 20
	Authentification header length. More...

#define	RAD_AUTH_PACKET_LEN 4096
	Auth packet length. More...

#define	RAD_AUTH_TOKEN_LEN 16
	Auth token length. More...

#define	RAD_MAX_PASS_LEN 128
	Auth max password length. More...

#define	RAD_ATTR_USER_NAME 1 /string/
	Radius attribute username. More...

#define	RAD_ATTR_USER_PASSWORD 2 /passwd/
	Radius attribute password. More...

#define	RAD_ATTR_NAS_IP_ADDR 4 /ip/
	Radius attribute server IP. More...

#define	RAD_ATTR_NAS_PORT 5 /int/
	Radius attribute server port. More...

#define	RAD_ATTR_SERVICE_TYPE 6 /int/
	Radius attribute service type. More...

#define	RAD_ATTR_ACCTID 44
	Radius attribute account id. More...

#define	RAD_ATTR_PORT_TYPE 61 /int/
	Radius attribute port type. More...

#define	RAD_ATTR_EAP 79 /oct/
	Radius attribute EAP. More...

#define	RAD_ATTR_MESSAGE 80 /oct/
	Radius attribute message. More...

Typedefs
typedef struct radius_packet	radius_packet
	Forward decleration of structure. More...

typedef void(*	radius_cb )(struct radius_packet , void )
	Callback to call when response arrives. More...

Enumerations
enum	RADIUS_CODE { RAD_CODE_AUTHREQUEST = 1, RAD_CODE_AUTHACCEPT = 2, RAD_CODE_AUTHREJECT = 3, RAD_CODE_ACCTREQUEST = 4, RAD_CODE_ACCTRESPONSE = 5, RAD_CODE_AUTHCHALLENGE = 11 }
	Radius packet codes. More...

Functions
void	addradattrint (struct radius_packet *packet, char type, unsigned int val)
	Add a integer attribute too the packet. More...

void	addradattrip (struct radius_packet packet, char type, char ipaddr)
	Add a integer attribute too the packet. More...

void	addradattrstr (struct radius_packet packet, char type, char str)
	Add a integer attribute too the packet. More...

struct radius_packet *	new_radpacket (unsigned char code)
	Create a new radius packet. More...

void	add_radserver (const char ipaddr, const char auth, const char acct, const char secret, int timeout)
	Add new radius server to list of servers. More...

int	send_radpacket (struct radius_packet packet, const char userpass, radius_cb read_cb, void *cb_data)
	Send radius packet. More...

unsigned char *	radius_attr_first (struct radius_packet *packet)
	Return first packet attribute. More...

unsigned char *	radius_attr_next (struct radius_packet packet, unsigned char attr)
	Return next packet attribute. More...

Detailed Description

Simple implementation of experimental radius client.

 * User password crypt function from the freeradius project (addattrpasswd)
 * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 The FreeRADIUS Server Project

Macro Definition Documentation

#define RAD_ATTR_ACCTID 44

Radius attribute account id.

Definition at line 556 of file dtsapp.h.

#define RAD_ATTR_EAP 79 /*oct*/

Radius attribute EAP.

Definition at line 562 of file dtsapp.h.

#define RAD_ATTR_MESSAGE 80 /*oct*/

Radius attribute message.

Definition at line 565 of file dtsapp.h.

#define RAD_ATTR_NAS_IP_ADDR 4 /*ip*/

Radius attribute server IP.

Definition at line 547 of file dtsapp.h.

#define RAD_ATTR_NAS_PORT 5 /*int*/

Radius attribute server port.

Definition at line 550 of file dtsapp.h.

#define RAD_ATTR_PORT_TYPE 61 /*int*/

Radius attribute port type.

Definition at line 559 of file dtsapp.h.

#define RAD_ATTR_SERVICE_TYPE 6 /*int*/

Radius attribute service type.

Definition at line 553 of file dtsapp.h.

#define RAD_ATTR_USER_NAME 1 /*string*/

Radius attribute username.

Definition at line 541 of file dtsapp.h.

#define RAD_ATTR_USER_PASSWORD 2 /*passwd*/

Radius attribute password.

Definition at line 544 of file dtsapp.h.

#define RAD_AUTH_HDR_LEN 20

Authentification header length.

Definition at line 529 of file dtsapp.h.

Referenced by new_radpacket(), and radius_attr_next().

#define RAD_AUTH_PACKET_LEN 4096

Auth packet length.

Definition at line 532 of file dtsapp.h.

#define RAD_AUTH_TOKEN_LEN 16

Auth token length.

Definition at line 535 of file dtsapp.h.

Referenced by new_radpacket().

#define RAD_MAX_PASS_LEN 128

Auth max password length.

Definition at line 538 of file dtsapp.h.

Typedef Documentation

typedef void(* radius_cb)(struct radius_packet *, void *)

Callback to call when response arrives.

Parameters

packet	Reference to radius packet.
data	Reference to userdata.

Definition at line 306 of file dtsapp.h.

typedef struct radius_packet radius_packet

Forward decleration of structure.

Definition at line 193 of file dtsapp.h.

Enumeration Type Documentation

enum RADIUS_CODE

Radius packet codes.

Enumerator
RAD_CODE_AUTHREQUEST	Radius auth request.
RAD_CODE_AUTHACCEPT	Radius auth accept.
RAD_CODE_AUTHREJECT	Radius auth reject.
RAD_CODE_ACCTREQUEST	Radius accounting request.
RAD_CODE_ACCTRESPONSE	Radius accounting response.
RAD_CODE_AUTHCHALLENGE	Radius auth challenge.

Definition at line 568 of file dtsapp.h.

                  {
     RAD_CODE_AUTHREQUEST    =   1,
     RAD_CODE_AUTHACCEPT =   2,
     RAD_CODE_AUTHREJECT =   3,
     RAD_CODE_ACCTREQUEST    =   4,
     RAD_CODE_ACCTRESPONSE   =   5,
     RAD_CODE_AUTHCHALLENGE  =   11
 };

Function Documentation

void add_radserver	(	const char *	ipaddr,
		const char *	auth,
		const char *	acct,
		const char *	secret,
		int	timeout
	)

Add new radius server to list of servers.

Parameters

ipaddr	IP address or hostname of server.
auth	Athentification port.
acct	Accounting port.
secret	Shared secret.
timeout	Time to take offline on failure.

Definition at line 289 of file radius.c.

References radius_server::acctport, addtobucket(), ALLOC_CONST, radius_server::authport, bucket_list_cnt(), create_bucketlist(), radius_server::id, radius_server::name, objalloc(), objunref(), radius_server::secret, radius_server::service, and radius_server::timeout.

                                                                                                                    {
     struct radius_server *server;
 
     if ((server = objalloc(sizeof(*server), del_radserver))) {
         ALLOC_CONST(server->name, ipaddr);
         ALLOC_CONST(server->authport, auth);
         ALLOC_CONST(server->acctport, acct);
         ALLOC_CONST(server->secret, secret);
         if (!servers) {
             servers = create_bucketlist(0, hash_server);
         }
         server->id = bucket_list_cnt(servers);
         server->timeout = timeout;
         gettimeofday(&server->service, NULL);
         addtobucket(servers, server);
     }
 
     objunref(server);
 }

void addradattrint	(	struct radius_packet *	packet,
		char	type,
		unsigned int	val
	)

Add a integer attribute too the packet.

Parameters

packet	Radius packet to add too.
type	Attribute been added.
val	Value to add.

Definition at line 149 of file radius.c.

                                                                                      {
     unsigned int tval;
 
     tval = htonl(val);
     addradattr(packet, type, (unsigned char *)&tval, sizeof(tval));
 }

void addradattrip	(	struct radius_packet *	packet,
		char	type,
		char *	ipaddr
	)

Add a integer attribute too the packet.

Parameters

packet	Radius packet to add too.
type	Attribute been added.
ipaddr	IP to add.

Definition at line 160 of file radius.c.

                                                                                 {
     unsigned int tval;
 
     tval = inet_addr(ipaddr);
     addradattr(packet, type, (unsigned char *)&tval, sizeof(tval));
 }

void addradattrstr	(	struct radius_packet *	packet,
		char	type,
		char *	str
	)

Add a integer attribute too the packet.

Parameters

packet	Radius packet to add too.
type	Attribute been added.
str	Value to add.

Definition at line 171 of file radius.c.

                                                                               {
     addradattr(packet, type, (unsigned char *)str, strlen(str));
 }

struct radius_packet* new_radpacket ( unsigned char code )

Create a new radius packet.

See Also: RADIUS_CODE

Parameters

code	Radius packet type.

Returns: reference to new radius packet of specified type.

Definition at line 221 of file radius.c.

References radius_packet::code, genrand(), radius_packet::len, RAD_AUTH_HDR_LEN, RAD_AUTH_TOKEN_LEN, and radius_packet::token.

                                                                {
     struct radius_packet *packet;
 
     if ((packet = malloc(sizeof(*packet)))) {
         memset(packet, 0, sizeof(*packet));
         packet->len = RAD_AUTH_HDR_LEN;
         packet->code = code;
         genrand(&packet->token, RAD_AUTH_TOKEN_LEN);
     }
     return (packet);
 }

unsigned char* radius_attr_first ( struct radius_packet * packet )

Return first packet attribute.

Used with radius_attr_next() to iterate through attributes.

Parameters

packet Radius packet.

Returns: Pointer to next attribute

Definition at line 627 of file radius.c.

References radius_packet::attrs.

                                                                       {
     return (packet->attrs);
 }

unsigned char* radius_attr_next	(	struct radius_packet *	packet,
		unsigned char *	attr
	)

Return next packet attribute.

Parameters

packet	Radius packet.
attr	Last attribute.

Returns: Pointer to next attribute.

Definition at line 635 of file radius.c.

References radius_packet::attrs, radius_packet::len, and RAD_AUTH_HDR_LEN.

                                                                                           {
     int offset = (packet->len - RAD_AUTH_HDR_LEN) - (attr - packet->attrs);
 
     if (!(offset - attr[1])) {
         return NULL;
     }
 
     return (attr + attr[1]);
 }

int send_radpacket	(	struct radius_packet *	packet,
		const char *	userpass,
		radius_cb	read_cb,
		void *	cb_data
	)

Send radius packet.

Parameters

packet	Radius packet to send.
userpass	Userpassword if required (added last requires special processing)
read_cb	Callback to call when response arrives.
cb_data	Reference to pass to callback.

Returns: 0 on success.

Definition at line 452 of file radius.c.

                                                                                                                 {
     return (_send_radpacket(packet, userpass, NULL, read_cb, cb_data));
 }

Files

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation