eap_pwd.h File Reference

#include <freeradius-devel/eap/base.h>
#include <freeradius-devel/tls/openssl_user_macros.h>
#include <openssl/bn.h>
#include <openssl/sha.h>
#include <openssl/ec.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>

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Data Structures
struct	pwd_hdr
	copyright holder grants permission for redistribution and use in source and binary forms, with or without modification, provided that the following conditions are met: More...
struct	pwd_id_packet_t
struct	pwd_session_t

Macros
#define	EAP_PWD_DEF_PRF   1
#define	EAP_PWD_DEF_RAND_FUN   1
#define	EAP_PWD_EXCH_COMMIT   2
#define	EAP_PWD_EXCH_CONFIRM   3
#define	EAP_PWD_EXCH_ID   1
#define	EAP_PWD_GET_EXCHANGE(x)   ((x)->lm_exchange & 0x3f)
#define	EAP_PWD_GET_LENGTH_BIT(x)   ((x)->lm_exchange & 0x80)
#define	EAP_PWD_GET_MORE_BIT(x)   ((x)->lm_exchange & 0x40)
#define	EAP_PWD_PREP_MS   1
#define	EAP_PWD_PREP_NONE   0
#define	EAP_PWD_PREP_SASL   2
#define	EAP_PWD_SET_EXCHANGE(x, y)   ((x)->lm_exchange |= (y))
#define	EAP_PWD_SET_LENGTH_BIT(x)   ((x)->lm_exchange |= 0x80)
#define	EAP_PWD_SET_MORE_BIT(x)   ((x)->lm_exchange |= 0x40)
#define	PWD_STATE_COMMIT   2
#define	PWD_STATE_CONFIRM   3
#define	PWD_STATE_ID_REQ   1

Functions
int	compute_keys (request_t *request, pwd_session_t *sess, uint8_t *peer_confirm, uint8_t *msk, uint8_t *emsk)
int	compute_password_element (request_t *request, pwd_session_t *sess, uint16_t grp_num, char const *password, int password_len, char const *id_server, int id_server_len, char const *id_peer, int id_peer_len, uint32_t *token, BN_CTX *bnctx)
int	compute_peer_confirm (request_t *request, pwd_session_t *sess, uint8_t *out, BN_CTX *bnctx)
int	compute_scalar_element (request_t *request, pwd_session_t *sess, BN_CTX *bnctx)
int	compute_server_confirm (request_t *request, pwd_session_t *sess, uint8_t *out, BN_CTX *bnctx)
int	process_peer_commit (request_t *request, pwd_session_t *sess, uint8_t *in, size_t in_len, BN_CTX *bnctx)

---

Data Structure Documentation

pwd_hdr

struct pwd_hdr

copyright holder grants permission for redistribution and use in source and binary forms, with or without modification, provided that the following conditions are met:

1. Redistribution of source code must retain the above copyright notice, this list of conditions, and the following disclaimer in all source files.
2. Redistribution in binary form must retain the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution.

"DISCLAIMER OF LIABILITY

THIS SOFTWARE IS PROVIDED BY DAN HARKINS `‘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 INDUSTRIAL LOUNGE 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."

This license and distribution terms cannot be changed. In other words, this code cannot simply be copied and put under a different distribution license (including the GNU public license).

Copyright

(c) Dan Harkins, 2012

Definition at line 44 of file eap_pwd.h.

Data Fields
uint8_t	data[]
uint8_t	lm_exchange

pwd_id_packet_t

struct pwd_id_packet_t

Definition at line 60 of file eap_pwd.h.

Data Fields
uint16_t	group_num
char	identity[]
uint8_t	prep
uint8_t	prf
uint8_t	random_function
uint8_t	token[4]

pwd_session_t

struct pwd_session_t

Definition at line 74 of file eap_pwd.h.

Data Fields
uint32_t	ciphersuite
EC_GROUP *	group
uint16_t	group_num
uint8_t *	in
size_t	in_len
size_t	in_pos
BIGNUM *	k
size_t	mtu
uint8_t	my_confirm[SHA256_DIGEST_LENGTH]
EC_POINT *	my_element
BIGNUM *	my_scalar
BIGNUM *	order
uint8_t *	out
size_t	out_len
size_t	out_pos
EC_POINT *	peer_element
char	peer_id[FR_MAX_STRING_LEN]
size_t	peer_id_len
BIGNUM *	peer_scalar
BIGNUM *	prime
BIGNUM *	private_value
EC_POINT *	pwe
uint16_t	state
uint32_t	token

Macro Definition Documentation

EAP_PWD_DEF_PRF

#define EAP_PWD_DEF_PRF   1

Definition at line 65 of file eap_pwd.h.

EAP_PWD_DEF_RAND_FUN

#define EAP_PWD_DEF_RAND_FUN   1

Definition at line 63 of file eap_pwd.h.

EAP_PWD_EXCH_COMMIT

#define EAP_PWD_EXCH_COMMIT   2

Definition at line 47 of file eap_pwd.h.

EAP_PWD_EXCH_CONFIRM

#define EAP_PWD_EXCH_CONFIRM   3

Definition at line 48 of file eap_pwd.h.

EAP_PWD_EXCH_ID

#define EAP_PWD_EXCH_ID   1

Definition at line 46 of file eap_pwd.h.

EAP_PWD_GET_EXCHANGE

#define EAP_PWD_GET_EXCHANGE

(

x

)

((x)->lm_exchange & 0x3f)

Definition at line 57 of file eap_pwd.h.

EAP_PWD_GET_LENGTH_BIT

#define EAP_PWD_GET_LENGTH_BIT

(

x

)

((x)->lm_exchange & 0x80)

Definition at line 53 of file eap_pwd.h.

EAP_PWD_GET_MORE_BIT

#define EAP_PWD_GET_MORE_BIT

(

x

)

((x)->lm_exchange & 0x40)

Definition at line 55 of file eap_pwd.h.

EAP_PWD_PREP_MS

#define EAP_PWD_PREP_MS   1

Definition at line 69 of file eap_pwd.h.

EAP_PWD_PREP_NONE

#define EAP_PWD_PREP_NONE   0

Definition at line 68 of file eap_pwd.h.

EAP_PWD_PREP_SASL

#define EAP_PWD_PREP_SASL   2

Definition at line 70 of file eap_pwd.h.

EAP_PWD_SET_EXCHANGE

#define EAP_PWD_SET_EXCHANGE	(		x,
			y
	)		((x)->lm_exchange |= (y))

Definition at line 58 of file eap_pwd.h.

EAP_PWD_SET_LENGTH_BIT

#define EAP_PWD_SET_LENGTH_BIT

(

x

)

((x)->lm_exchange |= 0x80)

Definition at line 54 of file eap_pwd.h.

EAP_PWD_SET_MORE_BIT

#define EAP_PWD_SET_MORE_BIT

(

x

)

((x)->lm_exchange |= 0x40)

Definition at line 56 of file eap_pwd.h.

PWD_STATE_COMMIT

#define PWD_STATE_COMMIT   2

Definition at line 77 of file eap_pwd.h.

PWD_STATE_CONFIRM

#define PWD_STATE_CONFIRM   3

Definition at line 78 of file eap_pwd.h.

PWD_STATE_ID_REQ

#define PWD_STATE_ID_REQ   1

Definition at line 76 of file eap_pwd.h.

Function Documentation

compute_keys()

int compute_keys	(	request_t *	request,
		pwd_session_t *	sess,
		uint8_t *	peer_confirm,
		uint8_t *	msk,
		uint8_t *	emsk
	)

compute_password_element()

int compute_password_element	(	request_t *	request,
		pwd_session_t *	sess,
		uint16_t	grp_num,
		char const *	password,
		int	password_len,
		char const *	id_server,
		int	id_server_len,
		char const *	id_peer,
		int	id_peer_len,
		uint32_t *	token,
		BN_CTX *	bnctx
	)

Definition at line 253 of file eap_pwd.c.

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compute_peer_confirm()

int compute_peer_confirm	(	request_t *	request,
		pwd_session_t *	sess,
		uint8_t *	out,
		BN_CTX *	bnctx
	)

Definition at line 787 of file eap_pwd.c.

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compute_scalar_element()

int compute_scalar_element	(	request_t *	request,
		pwd_session_t *	sess,
		BN_CTX *	bnctx
	)

Definition at line 518 of file eap_pwd.c.

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compute_server_confirm()

int compute_server_confirm	(	request_t *	request,
		pwd_session_t *	sess,
		uint8_t *	out,
		BN_CTX *	bnctx
	)

Definition at line 684 of file eap_pwd.c.

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process_peer_commit()

int process_peer_commit	(	request_t *	request,
		pwd_session_t *	sess,
		uint8_t *	in,
		size_t	in_len,
		BN_CTX *	bnctx
	)

Definition at line 558 of file eap_pwd.c.

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