rlm_eap_psk.c File Reference

EAP-PSK (RFC 4764) interface to the EAP module. More...

#include <freeradius-devel/server/base.h>
#include <freeradius-devel/server/module_rlm.h>
#include <freeradius-devel/server/virtual_servers.h>
#include <freeradius-devel/unlang/module.h>
#include <freeradius-devel/unlang/call.h>
#include <freeradius-devel/protocol/eap/psk/freeradius.h>
#include "crypto.h"

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Data Structures
struct	rlm_eap_psk_t

Macros
#define	EAP_PSK_MPPE_KEY_LEN   32

Functions
static unlang_action_t	mod_encode (unlang_result_t *p_result, UNUSED module_ctx_t const *mctx, request_t *request)
	Translate the state machine's reply Packet-Type into an EAP result.
static unlang_action_t	mod_process (unlang_result_t *p_result, module_ctx_t const *mctx, request_t *request)
	Derive the next Packet-Type from the session state, and enter the virtual server.
static unlang_action_t	mod_session_init (unlang_result_t *p_result, module_ctx_t const *mctx, request_t *request)

Variables
static fr_dict_attr_t const *	attr_ms_mppe_recv_key
static fr_dict_attr_t const *	attr_ms_mppe_send_key
static fr_dict_t const *	dict_eap_psk
static fr_dict_t const *	dict_radius
rlm_eap_submodule_t	rlm_eap_psk
fr_dict_autoload_t	rlm_eap_psk_dict []
fr_dict_attr_autoload_t	rlm_eap_psk_dict_attr []
static conf_parser_t	submodule_config []

Detailed Description

EAP-PSK (RFC 4764) interface to the EAP module.

Id

170ddc549833688b444471d7b2a59fb562eb7bfd

The protocol state machine, message parsing, and cryptography all live in the eap_psk process module (src/process/eap_psk). This submodule derives the next Packet-Type from the session state, pushes the request into the configured eap-psk virtual server, and translates the reply Packet-Type back into an EAP result.

Copyright

2026 Network RADIUS SAS (legal.nosp@m.@net.nosp@m.workr.nosp@m.adiu.nosp@m.s.com)

Definition in file rlm_eap_psk.c.

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Data Structure Documentation

rlm_eap_psk_t

struct rlm_eap_psk_t

Definition at line 42 of file rlm_eap_psk.c.

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Data Fields
virtual_server_t *	virtual_server	eap-psk virtual server providing the policy sections for the exchange.

Macro Definition Documentation

EAP_PSK_MPPE_KEY_LEN

#define EAP_PSK_MPPE_KEY_LEN   32

Definition at line 81 of file rlm_eap_psk.c.

Function Documentation

mod_encode()

static unlang_action_t mod_encode ( unlang_result_t *  p_result, UNUSED module_ctx_t const *  mctx, request_t *  request  )

static

Translate the state machine's reply Packet-Type into an EAP result.

Runs after the virtual server (and the eap_psk process module inside of it) finishes with this round.

Definition at line 88 of file rlm_eap_psk.c.

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mod_process()

static unlang_action_t mod_process ( unlang_result_t *  p_result, module_ctx_t const *  mctx, request_t *  request  )

static

Derive the next Packet-Type from the session state, and enter the virtual server.

Definition at line 133 of file rlm_eap_psk.c.

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mod_session_init()

static unlang_action_t mod_session_init ( unlang_result_t *  p_result, module_ctx_t const *  mctx, request_t *  request  )

static

Definition at line 185 of file rlm_eap_psk.c.

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Variable Documentation

attr_ms_mppe_recv_key

fr_dict_attr_t const* attr_ms_mppe_recv_key

static

Definition at line 68 of file rlm_eap_psk.c.

attr_ms_mppe_send_key

fr_dict_attr_t const* attr_ms_mppe_send_key

static

Definition at line 67 of file rlm_eap_psk.c.

dict_eap_psk

fr_dict_t const* dict_eap_psk

static

Definition at line 57 of file rlm_eap_psk.c.

dict_radius

fr_dict_t const* dict_radius

static

Definition at line 58 of file rlm_eap_psk.c.

rlm_eap_psk

rlm_eap_submodule_t rlm_eap_psk

Initial value:

= {
        .common = {
                .magic          = MODULE_MAGIC_INIT,
                .name           = "eap_psk",
                .inst_size      = sizeof(rlm_eap_psk_t),
                .config         = submodule_config,
        },
        .provides       = { FR_EAP_METHOD_PSK },
        .session_init   = mod_session_init,             
        .namespace      = &dict_eap_psk
}

Definition at line 201 of file rlm_eap_psk.c.

rlm_eap_psk_dict

fr_dict_autoload_t rlm_eap_psk_dict

Initial value:

= {
        { .out = &dict_eap_psk, .base_dir = "eap/psk", .proto = "eap-psk" },
        { .out = &dict_radius, .proto = "radius" },
        DICT_AUTOLOAD_TERMINATOR
}

Definition at line 61 of file rlm_eap_psk.c.

rlm_eap_psk_dict_attr

fr_dict_attr_autoload_t rlm_eap_psk_dict_attr

Initial value:

= {
        { .out = &attr_ms_mppe_send_key, .name = "Vendor-Specific.Microsoft.MPPE-Send-Key", .type = FR_TYPE_OCTETS, .dict = &dict_radius },
        { .out = &attr_ms_mppe_recv_key, .name = "Vendor-Specific.Microsoft.MPPE-Recv-Key", .type = FR_TYPE_OCTETS, .dict = &dict_radius },
        DICT_AUTOLOAD_TERMINATOR
}

Definition at line 71 of file rlm_eap_psk.c.

submodule_config

conf_parser_t submodule_config[]

static

Initial value:

= {
        { FR_CONF_OFFSET_TYPE_FLAGS("virtual_server", FR_TYPE_VOID, CONF_FLAG_REQUIRED, rlm_eap_psk_t, virtual_server),
                                    .func = virtual_server_cf_parse,
                                    .uctx = &(virtual_server_cf_parse_uctx_t){
                                            .process_module_name = "eap_psk",
                                    } },
 
        CONF_PARSER_TERMINATOR
}

Definition at line 47 of file rlm_eap_psk.c.