rlm_chap.c File Reference

Process chap authentication requests. More...

#include <freeradius-devel/server/base.h>
#include <freeradius-devel/server/password.h>
#include <freeradius-devel/server/module_rlm.h>
#include <freeradius-devel/server/cf_parse.h>
#include <freeradius-devel/util/chap.h>
#include <freeradius-devel/unlang/xlat_func.h>
#include <freeradius-devel/unlang/call_env.h>

Include dependency graph for rlm_chap.c:

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Data Structures
struct	chap_auth_call_env_t
struct	chap_autz_call_env_t
struct	chap_xlat_call_env_t
struct	rlm_chap_t

Macros
#define	LOG_PREFIX   mctx->mi->name

Functions
static unlang_action_t	mod_authenticate (unlang_result_t *p_result, module_ctx_t const *mctx, request_t *request)
static unlang_action_t	mod_authorize (unlang_result_t *p_result, module_ctx_t const *mctx, request_t *request)
static int	mod_bootstrap (module_inst_ctx_t const *mctx)
static int	mod_instantiate (module_inst_ctx_t const *mctx)
static xlat_action_t	xlat_func_chap_password (TALLOC_CTX *ctx, fr_dcursor_t *out, xlat_ctx_t const *xctx, request_t *request, fr_value_box_list_t *in)
	Produce a CHAP-Password hash value.

Variables
static fr_dict_attr_t const *	attr_auth_type
static fr_dict_attr_t const *	attr_cleartext_password
static const call_env_method_t	chap_auth_method_env
static const call_env_method_t	chap_autz_method_env
static const call_env_method_t	chap_xlat_method_env
static fr_dict_t const *	dict_freeradius
static const conf_parser_t	module_config []
module_rlm_t	rlm_chap
fr_dict_autoload_t	rlm_chap_dict []
fr_dict_attr_autoload_t	rlm_chap_dict_attr []
static xlat_arg_parser_t const	xlat_func_chap_password_args []

Detailed Description

Process chap authentication requests.

Id

d4793609c541c6ddb5d3e64ee71df5ab514363e7

Copyright

2001,2006 The FreeRADIUS server project

Definition in file rlm_chap.c.

---

Data Structure Documentation

chap_auth_call_env_t

struct chap_auth_call_env_t

Definition at line 82 of file rlm_chap.c.

Collaboration diagram for chap_auth_call_env_t:

Data Fields
fr_value_box_t	chap_challenge
fr_value_box_t	chap_password
fr_value_box_t	username

chap_autz_call_env_t

struct chap_autz_call_env_t

Definition at line 61 of file rlm_chap.c.

Collaboration diagram for chap_autz_call_env_t:

Data Fields
fr_value_box_t	chap_challenge
tmpl_t *	chap_challenge_tmpl
fr_value_box_t	chap_password

chap_xlat_call_env_t

struct chap_xlat_call_env_t

Definition at line 46 of file rlm_chap.c.

Collaboration diagram for chap_xlat_call_env_t:

Data Fields
fr_value_box_t	chap_challenge

rlm_chap_t

struct rlm_chap_t

Definition at line 36 of file rlm_chap.c.

Collaboration diagram for rlm_chap_t:

Data Fields
fr_dict_enum_value_t const *	auth_type
size_t	min_challenge_len

Macro Definition Documentation

LOG_PREFIX

#define LOG_PREFIX   mctx->mi->name

Definition at line 26 of file rlm_chap.c.

Function Documentation

mod_authenticate()

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

static

Definition at line 228 of file rlm_chap.c.

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mod_authorize()

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

static

Definition at line 176 of file rlm_chap.c.

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mod_bootstrap()

static int mod_bootstrap ( module_inst_ctx_t const *  mctx )

static

Definition at line 360 of file rlm_chap.c.

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mod_instantiate()

static int mod_instantiate ( module_inst_ctx_t const *  mctx )

static

Definition at line 347 of file rlm_chap.c.

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Variable Documentation

attr_auth_type

fr_dict_attr_t const* attr_auth_type

static

Definition at line 115 of file rlm_chap.c.

attr_cleartext_password

fr_dict_attr_t const* attr_cleartext_password

static

Definition at line 116 of file rlm_chap.c.

chap_auth_method_env

const call_env_method_t chap_auth_method_env

static

Initial value:

= { 
        FR_CALL_ENV_METHOD_OUT(chap_auth_call_env_t),
        .env = (call_env_parser_t[]){
                { FR_CALL_ENV_OFFSET("username", FR_TYPE_STRING,
                                     CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_REQUIRED,
                                     chap_auth_call_env_t, username),
                                     .pair.dflt = "User-Name", .pair.dflt_quote = T_BARE_WORD },
                { FR_CALL_ENV_OFFSET("chap_password", FR_TYPE_OCTETS,
                                     CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_REQUIRED | CALL_ENV_FLAG_NULLABLE,
                                     chap_auth_call_env_t, chap_password),
                                     .pair.dflt = "Chap-Password", .pair.dflt_quote = T_BARE_WORD },
                { FR_CALL_ENV_OFFSET("chap_challenge", FR_TYPE_OCTETS,
                                     CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_REQUIRED | CALL_ENV_FLAG_NULLABLE,
                                     chap_auth_call_env_t, chap_challenge),
                                     .pair.dflt = "Chap-Challenge", .pair.dflt_quote = T_BARE_WORD },
                CALL_ENV_TERMINATOR
        }
}

Definition at line 88 of file rlm_chap.c.

chap_autz_method_env

const call_env_method_t chap_autz_method_env

static

Initial value:

= { 
        FR_CALL_ENV_METHOD_OUT(chap_autz_call_env_t),
        .env = (call_env_parser_t[]){
                { FR_CALL_ENV_OFFSET("chap_password", FR_TYPE_OCTETS,
                                     CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_REQUIRED | CALL_ENV_FLAG_NULLABLE,
                                     chap_autz_call_env_t, chap_password),
                                     .pair.dflt = "Chap-Password", .pair.dflt_quote = T_BARE_WORD },
                { FR_CALL_ENV_PARSE_OFFSET("chap_challenge", FR_TYPE_OCTETS,
                                          CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_REQUIRED | CALL_ENV_FLAG_NULLABLE,
                                          chap_autz_call_env_t, chap_challenge, chap_challenge_tmpl),
                                          .pair.dflt = "Chap-Challenge", .pair.dflt_quote = T_BARE_WORD },
                CALL_ENV_TERMINATOR
        }
}

Definition at line 67 of file rlm_chap.c.

chap_xlat_method_env

const call_env_method_t chap_xlat_method_env

static

Initial value:

= { 
        FR_CALL_ENV_METHOD_OUT(chap_xlat_call_env_t),
        .env = (call_env_parser_t[]){
                { FR_CALL_ENV_OFFSET("chap_challenge", FR_TYPE_OCTETS,
                                     CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_REQUIRED | CALL_ENV_FLAG_NULLABLE,
                                     chap_xlat_call_env_t,
                                     chap_challenge), .pair.dflt = "Chap-Challenge", .pair.dflt_quote = T_BARE_WORD },
                CALL_ENV_TERMINATOR
        }
}

Definition at line 50 of file rlm_chap.c.

dict_freeradius

fr_dict_t const* dict_freeradius

static

Definition at line 107 of file rlm_chap.c.

module_config

const conf_parser_t module_config[]

static

Initial value:

= {
        { FR_CONF_OFFSET_TYPE_FLAGS("min_challenge_len", FR_TYPE_SIZE, 0, rlm_chap_t, min_challenge_len), .dflt = "16" },
        CONF_PARSER_TERMINATOR
}

Definition at line 41 of file rlm_chap.c.

rlm_chap

module_rlm_t rlm_chap

Initial value:

= {
        .common = {
                .magic          = MODULE_MAGIC_INIT,
                .name           = "chap",
                .inst_size      = sizeof(rlm_chap_t),
                .bootstrap      = mod_bootstrap,
                .config         = module_config,
                .instantiate    = mod_instantiate
        },
        .method_group = {
                .bindings = (module_method_binding_t[]){
                        { .section = SECTION_NAME("authenticate", CF_IDENT_ANY), .method = mod_authenticate, .method_env = &chap_auth_method_env },
                        { .section = SECTION_NAME("recv", "Access-Request"), .method = mod_authorize, .method_env = &chap_autz_method_env },
                        MODULE_BINDING_TERMINATOR
                }
        }
}

Definition at line 382 of file rlm_chap.c.

rlm_chap_dict

fr_dict_autoload_t rlm_chap_dict

Initial value:

= {
        { .out = &dict_freeradius, .proto = "freeradius" },
        DICT_AUTOLOAD_TERMINATOR
}

Definition at line 110 of file rlm_chap.c.

rlm_chap_dict_attr

fr_dict_attr_autoload_t rlm_chap_dict_attr

Initial value:

= {
        { .out = &attr_auth_type, .name = "Auth-Type", .type = FR_TYPE_UINT32, .dict = &dict_freeradius },
        { .out = &attr_cleartext_password, .name = "Password.Cleartext", .type = FR_TYPE_STRING, .dict = &dict_freeradius },
 
        DICT_AUTOLOAD_TERMINATOR
}

Definition at line 119 of file rlm_chap.c.

xlat_func_chap_password_args

xlat_arg_parser_t const xlat_func_chap_password_args[]

static

Initial value:

= {
        { .required = true, .single = true, .type = FR_TYPE_STRING },
        XLAT_ARG_PARSER_TERMINATOR
}

Definition at line 126 of file rlm_chap.c.