radius.c File Reference

RADIUS message processing. More...

#include "utils/includes.h"
#include "utils/common.h"
#include "utils/wpabuf.h"
#include "crypto/md5.h"
#include "crypto/crypto.h"
#include "radius.h"

Data Structures
struct	radius_msg
	RADIUS message structure for new and parsed messages. More...
struct	radius_attr_type
struct	radius_tunnel_attrs

Macros
#define	RADIUS_ATTRS   ARRAY_SIZE(radius_attrs)

Functions
struct radius_hdr *	radius_msg_get_hdr (struct radius_msg *msg)
struct wpabuf *	radius_msg_get_buf (struct radius_msg *msg)
struct radius_msg *	radius_msg_new (u8 code, u8 identifier)
	Create a new RADIUS message. More...
void	radius_msg_free (struct radius_msg *msg)
	Free a RADIUS message. More...
void	radius_msg_dump (struct radius_msg *msg)
int	radius_msg_finish (struct radius_msg *msg, const u8 *secret, size_t secret_len)
int	radius_msg_finish_srv (struct radius_msg *msg, const u8 *secret, size_t secret_len, const u8 *req_authenticator)
int	radius_msg_finish_das_resp (struct radius_msg *msg, const u8 *secret, size_t secret_len, const struct radius_hdr *req_hdr)
void	radius_msg_finish_acct (struct radius_msg *msg, const u8 *secret, size_t secret_len)
void	radius_msg_finish_acct_resp (struct radius_msg *msg, const u8 *secret, size_t secret_len, const u8 *req_authenticator)
int	radius_msg_verify_acct_req (struct radius_msg *msg, const u8 *secret, size_t secret_len)
int	radius_msg_verify_das_req (struct radius_msg *msg, const u8 *secret, size_t secret_len)
struct radius_attr_hdr *	radius_msg_add_attr (struct radius_msg *msg, u8 type, const u8 *data, size_t data_len)
struct radius_msg *	radius_msg_parse (const u8 *data, size_t len)
	Parse a RADIUS message. More...
int	radius_msg_add_eap (struct radius_msg *msg, const u8 *data, size_t data_len)
struct wpabuf *	radius_msg_get_eap (struct radius_msg *msg)
int	radius_msg_verify_msg_auth (struct radius_msg *msg, const u8 *secret, size_t secret_len, const u8 *req_auth)
int	radius_msg_verify (struct radius_msg *msg, const u8 *secret, size_t secret_len, struct radius_msg *sent_msg, int auth)
int	radius_msg_copy_attr (struct radius_msg *dst, struct radius_msg *src, u8 type)
void	radius_msg_make_authenticator (struct radius_msg *msg, const u8 *data, size_t len)
struct radius_ms_mppe_keys *	radius_msg_get_ms_keys (struct radius_msg *msg, struct radius_msg *sent_msg, const u8 *secret, size_t secret_len)
struct radius_ms_mppe_keys *	radius_msg_get_cisco_keys (struct radius_msg *msg, struct radius_msg *sent_msg, const u8 *secret, size_t secret_len)
int	radius_msg_add_mppe_keys (struct radius_msg *msg, const u8 *req_authenticator, const u8 *secret, size_t secret_len, const u8 *send_key, size_t send_key_len, const u8 *recv_key, size_t recv_key_len)
int	radius_msg_add_wfa (struct radius_msg *msg, u8 subtype, const u8 *data, size_t len)
int	radius_user_password_hide (struct radius_msg *msg, const u8 *data, size_t data_len, const u8 *secret, size_t secret_len, u8 *buf, size_t buf_len)
struct radius_attr_hdr *	radius_msg_add_attr_user_password (struct radius_msg *msg, const u8 *data, size_t data_len, const u8 *secret, size_t secret_len)
int	radius_msg_get_attr (struct radius_msg *msg, u8 type, u8 *buf, size_t len)
int	radius_msg_get_attr_ptr (struct radius_msg *msg, u8 type, u8 **buf, size_t *len, const u8 *start)
int	radius_msg_count_attr (struct radius_msg *msg, u8 type, int min_len)
int	radius_msg_get_vlanid (struct radius_msg *msg)
	Parse RADIUS attributes for VLAN tunnel information. More...
char *	radius_msg_get_tunnel_password (struct radius_msg *msg, int *keylen, const u8 *secret, size_t secret_len, struct radius_msg *sent_msg, size_t n)
	Parse RADIUS attribute Tunnel-Password. More...
void	radius_free_class (struct radius_class_data *c)
int	radius_copy_class (struct radius_class_data *dst, const struct radius_class_data *src)
u8	radius_msg_find_unlisted_attr (struct radius_msg *msg, u8 *attrs)

Detailed Description

RADIUS message processing.

Function Documentation

void radius_msg_free

(

struct radius_msg *

msg

)

Free a RADIUS message.

Parameters

msg	RADIUS message from radius_msg_new() or radius_msg_parse()

char* radius_msg_get_tunnel_password	(	struct radius_msg *	msg,
		int *	keylen,
		const u8 *	secret,
		size_t	secret_len,
		struct radius_msg *	sent_msg,
		size_t	n
	)

Parse RADIUS attribute Tunnel-Password.

Parameters

msg	Received RADIUS message
keylen	Length of returned password
secret	RADIUS shared secret
secret_len	Length of secret
sent_msg	Sent RADIUS message
n	Number of password attribute to return (starting with 0)

Returns

Pointer to n-th password (free with os_free) or NULL

int radius_msg_get_vlanid

(

struct radius_msg *

msg

)

Parse RADIUS attributes for VLAN tunnel information.

Parameters

msg	RADIUS message

Returns

VLAN ID for the first tunnel configuration or 0 if none is found

struct radius_msg* radius_msg_new	(	u8	code,
		u8	identifier
	)

Create a new RADIUS message.

Parameters

code	Code for RADIUS header
identifier	Identifier for RADIUS header

Returns

Context for RADIUS message or NULL on failure

The caller is responsible for freeing the returned data with radius_msg_free().

struct radius_msg* radius_msg_parse	(	const u8 *	data,
		size_t	len
	)

Parse a RADIUS message.

Parameters

data	RADIUS message to be parsed
len	Length of data buffer in octets

Returns

Parsed RADIUS message or NULL on failure

This parses a RADIUS message and makes a copy of its data. The caller is responsible for freeing the returned data with radius_msg_free().