call_env.h File Reference

Structures and functions for handling call environments. More...

#include <freeradius-devel/util/dlist.h>
#include <freeradius-devel/util/value.h>
#include <freeradius-devel/unlang/action.h>
#include <freeradius-devel/server/cf_parse.h>
#include <freeradius-devel/server/dl_module.h>
#include <freeradius-devel/server/module.h>
#include <freeradius-devel/server/request.h>
#include <freeradius-devel/server/tmpl.h>

Include dependency graph for call_env.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	call_env_ctx_s
struct	call_env_method_s
struct	call_env_parser_s
	Per method call config. More...
union	call_env_parser_s.__unnamed94__
struct	call_env_parser_s.__unnamed94__.pair
struct	call_env_parser_s.__unnamed94__.pair.parsed
struct	call_env_parser_s.__unnamed94__.section
struct	call_env_s
	Structure containing both a talloc pool, a list of parsed call_env_pairs. More...

Macros
#define	CALL_ENV_FLAGS(_cast_type, _flags, _struct, _field)
#define	CALL_ENV_PARSE_TYPE(_s, _f)
	Where we're specifying a parsing phase output field, determine its type. More...
#define	CALL_ENV_TERMINATOR   { NULL }
#define	FR_CALL_ENV_CONCAT(_c, _ct)
	Only FR_TYPE_STRING and FR_TYPE_OCTETS can be concatenated. More...
#define	FR_CALL_ENV_DST_SIZE(_s, _f)
#define	FR_CALL_ENV_DST_TYPE(_s, _f)
	Mapping from field types to destination type enum. More...
#define	FR_CALL_ENV_METHOD_OUT(_inst)
	Helper macro for populating the size/type fields of a call_env_method_t from the output structure type. More...
#define	FR_CALL_ENV_MULTI(_s, _f)
	Derive whether multi conf pairs are allowed from target field type. More...
#define	FR_CALL_ENV_OFFSET(_name, _cast_type, _flags, _struct, _field)
	Specify a call_env_parser_t which writes out runtime results to the specified field. More...
#define	FR_CALL_ENV_PARSE_OFFSET(_name, _cast_type, _flags, _struct, _field, _parse_field)
	Specify a call_env_parser_t which writes out runtime results and the result of the parsing phase to the fields specified. More...
#define	FR_CALL_ENV_PARSE_ONLY_OFFSET(_name, _cast_type, _flags, _struct, _parse_field)
	Specify a call_env_parser_t which writes out the result of the parsing phase to the field specified. More...
#define	FR_CALL_ENV_RESULT_TYPE_NAME(_s, _f)
#define	FR_CALL_ENV_SINGLE(_s, _f, _c)
	Derive whether tmpl can only emit a single box. More...
#define	FR_CALL_ENV_SUBSECTION(_name, _name2, _flags, _subcs)
	Specify a call_env_parser_t which defines a nested subsection. More...
#define	FR_CALL_ENV_SUBSECTION_FUNC(_name, _name2, _flags, _func)
	Specify a call_env_parser_t which parses a subsection using a callback function. More...

Typedefs
typedef void	_mismatch_flags
	Dummy type used to indicate bad flags. More...
typedef struct call_env_ctx_s	call_env_ctx_t
typedef struct call_env_method_s	call_env_method_t
typedef int(*	call_env_parse_pair_t) (TALLOC_CTX *ctx, void *out, tmpl_rules_t const *t_rules, CONF_ITEM *ci, call_env_ctx_t const *cec, call_env_parser_t const *rule)
	Callback for performing custom parsing of a CONF_PAIR. More...
typedef int(*	call_env_parse_section_t) (TALLOC_CTX *ctx, call_env_parsed_head_t *out, tmpl_rules_t const *t_rules, CONF_ITEM *ci, call_env_ctx_t const *cec, call_env_parser_t const *rule)
	Callback for performing custom parsing of a CONF_SECTION. More...
typedef struct call_env_parsed_s	call_env_parsed_t
typedef struct call_env_parser_s	call_env_parser_t
typedef struct call_env_s	call_env_t

Enumerations
enum	call_env_ctx_type_t {   CALL_ENV_CTX_TYPE_MODULE = 1 ,   CALL_ENV_CTX_TYPE_XLAT }
enum	call_env_flags_t {   CALL_ENV_FLAG_NONE = 0 ,   CALL_ENV_FLAG_REQUIRED = 1 ,   CALL_ENV_FLAG_CONCAT = (1 << 1) ,   CALL_ENV_FLAG_SINGLE = (1 << 2) ,   CALL_ENV_FLAG_MULTI = (1 << 3) ,   CALL_ENV_FLAG_NULLABLE = (1 << 4) ,   CALL_ENV_FLAG_FORCE_QUOTE = (1 << 5) ,   CALL_ENV_FLAG_PARSE_ONLY = (1 << 6) ,   CALL_ENV_FLAG_ATTRIBUTE = (1 << 7) ,   CALL_ENV_FLAG_SUBSECTION = (1 << 8) ,   CALL_ENV_FLAG_PARSE_MISSING = (1 << 9) ,   CALL_ENV_FLAG_SECRET = (1 << 10) }
enum	call_env_parse_type_t {   CALL_ENV_PARSE_TYPE_TMPL = 1 ,   CALL_ENV_PARSE_TYPE_VALUE_BOX ,   CALL_ENV_PARSE_TYPE_VOID }
	What type of structure is produced by the parsing phase. More...
enum	call_env_result_t {   CALL_ENV_SUCCESS = 0 ,   CALL_ENV_MISSING = -1 ,   CALL_ENV_INVALID = -2 }
enum	call_env_result_type_t {   CALL_ENV_RESULT_TYPE_VALUE_BOX = 1 ,   CALL_ENV_RESULT_TYPE_VALUE_BOX_LIST }
	What type of structure is produced by the evaluation phase. More...

#conf_parser_t flags checks
#define	call_env_attribute(_flags)   ((_flags) & CALL_ENV_FLAG_ATTRIBUTE)
#define	call_env_concat(_flags)   ((_flags) & CALL_ENV_FLAG_CONCAT)
#define	call_env_force_quote(_flags)   ((_flags) & CALL_ENV_FLAG_FORCE_QUOTE)
#define	call_env_is_subsection(_flags)   ((_flags) & CALL_ENV_FLAG_SUBSECTION)
#define	call_env_multi(_flags)   ((_flags) & CALL_ENV_FLAG_MULTI)
#define	call_env_nullable(_flags)   ((_flags) & CALL_ENV_FLAG_NULLABLE)
#define	call_env_pair_flags(_flags)   (((_flags) & (CALL_ENV_FLAG_SUBSECTION)) == 0)
	Evaluates to true if flags are valid for a pair. More...
#define	call_env_parse_missing(_flags)   ((_flags) & CALL_ENV_FLAG_PARSE_MISSING)
#define	call_env_parse_only(_flags)   ((_flags) & CALL_ENV_FLAG_PARSE_ONLY)
#define	call_env_required(_flags)   ((_flags) & CALL_ENV_FLAG_REQUIRED)
#define	call_env_secret(_flags)   ((_flags) & CALL_ENV_FLAG_SECRET)
#define	call_env_single(_flags)   ((_flags) & CALL_ENV_FLAG_SINGLE)
#define	call_env_subsection_flags(_flags)   (((_flags) & (CALL_ENV_FLAG_CONCAT | CALL_ENV_FLAG_SINGLE | CALL_ENV_FLAG_MULTI | CALL_ENV_FLAG_NULLABLE | CALL_ENV_FLAG_FORCE_QUOTE | CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_PARSE_MISSING)) == 0)
	Evaluates to true if flags are valid for a subsection. More...

Expand a call_env_t
unlang_action_t	call_env_expand (TALLOC_CTX *ctx, request_t *request, call_env_result_t *result, void **env_data, call_env_t const *call_env)
	Initialise the expansion of a call environment. More...

Functions that implement standard parsing behaviour which can be called by callbacks
int	call_env_parse_pair (TALLOC_CTX *ctx, void *out, tmpl_rules_t const *t_rules, CONF_ITEM *ci, call_env_ctx_t const *cec, call_env_parser_t const *rule)

Functions to be used by the section callbacks to add parsed data.
call_env_parsed_t *	call_env_parsed_add (TALLOC_CTX *ctx, call_env_parsed_head_t *head, call_env_parser_t const *rule)
	Allocate a new call_env_parsed_t structure and add it to the list of parsed call envs. More...
void	call_env_parsed_free (call_env_parsed_head_t *parsed, call_env_parsed_t *ptr)
	Remove a call_env_parsed_t from the list of parsed call envs. More...
void	call_env_parsed_set_data (call_env_parsed_t *parsed, void const *data)
	Assign data to a call_env_parsed_t. More...
void	call_env_parsed_set_multi_index (call_env_parsed_t *parsed, size_t count, size_t index)
	Assign a count and index to a call_env_parsed_t. More...
void	call_env_parsed_set_tmpl (call_env_parsed_t *parsed, tmpl_t const *tmpl)
	Assign a tmpl to a call_env_parsed_t. More...
void	call_env_parsed_set_value (call_env_parsed_t *parsed, fr_value_box_t const *vb)
	Assign a value box to a call_env_parsed_t. More...

Allocate a new call env
call_env_t *	call_env_alloc (TALLOC_CTX *ctx, char const *name, call_env_method_t const *call_env_method, tmpl_rules_t const *rules, CONF_SECTION *cs, call_env_ctx_t const *cec))
	Given a call_env_method, parse all call_env_pair_t in the context of a specific call to an xlat or module method. More...

Detailed Description

Structures and functions for handling call environments.

Id

750c489514607c999a99c7757b277b38dd985872

Copyright

2023 Network RADIUS SAS (legal.nosp@m.@net.nosp@m.workr.nosp@m.adiu.nosp@m.s.com)

Definition in file call_env.h.

---

Data Structure Documentation

call_env_ctx_s

struct call_env_ctx_s

Definition at line 221 of file call_env.h.

Collaboration diagram for call_env_ctx_s:

Data Fields
section_name_t const *	asked	The actual name1/name2 that resolved to a module_method_binding_t.
module_instance_t const *	mi	Module instance that the callenv is registered to. Available for both module methods, and xlats.
call_env_ctx_type_t	type	Type of callenv ctx.

call_env_method_s

struct call_env_method_s

Definition at line 239 of file call_env.h.

Collaboration diagram for call_env_method_s:

Data Fields
call_env_parser_t const *	env	Parsing rules for call method env.
size_t	inst_size	Size of per call env.
char const *	inst_type	Type of per call env.

call_env_parser_s

struct call_env_parser_s

Per method call config.

Similar to a conf_parser_t used to hold details of conf pairs which are evaluated per call for each module method / xlat.

This allows the conf pairs to be evaluated within the appropriate context and use the appropriate dictionaries for where the module is in use.

Definition at line 175 of file call_env.h.

Data Fields
union call_env_parser_s	__unnamed__
call_env_flags_t	flags	Flags controlling parser behaviour.
char const *	name	Of conf pair to pass to tmpl_tokenizer.
void const *	uctx	User context for callback functions.

call_env_parser_s.__unnamed94__

union call_env_parser_s.__unnamed94__

Definition at line 179 of file call_env.h.

Data Fields
__unnamed94__	pair
__unnamed94__	section

call_env_parser_s.__unnamed94__.pair

struct call_env_parser_s.__unnamed94__.pair

Definition at line 180 of file call_env.h.

Data Fields
fr_type_t	cast_type	To cast boxes to. Also contains flags controlling parser behaviour.
char const *	dflt	Default string to pass to the tmpl_tokenizer if no CONF_PAIR found.
fr_token_t	dflt_quote	Quoting for the default string.
tmpl_escape_t	escape	Escape method to use when evaluating tmpl_t.
call_env_parse_pair_t	func	Callback for parsing a CONF_PAIR.
fr_value_box_safe_for_t	literals_safe_for	What safe_for value to assign any literals that are arguments to the tmpl_t.
size_t	offset	Where to write the result of evaluating the tmpl_t produced in the parsing phase.
pair	parsed
size_t	size	Size of structure boxes will be written to.
call_env_result_type_t	type	Type of structure boxes will be written to.
char const *	type_name	Name of structure type boxes will be written to.

call_env_parser_s.__unnamed94__.pair.parsed

struct call_env_parser_s.__unnamed94__.pair.parsed

Definition at line 193 of file call_env.h.

Data Fields
ssize_t	offset	Where to write the result of the parsing phase. This is usually a tmpl_t, but could be other things when a callback function is used to parse the CONF_SECTION or CONF_PAIR.
call_env_parse_type_t	type	What type of output the parsing phase is expected to produce.

call_env_parser_s.__unnamed94__.section

struct call_env_parser_s.__unnamed94__.section

Definition at line 205 of file call_env.h.

Data Fields
call_env_parse_section_t	func	Callback for parsing CONF_SECTION.
char const *	name2	Second identifier for a section.
call_env_parser_t const *	subcs	Nested definitions for subsection.

call_env_s

struct call_env_s

Structure containing both a talloc pool, a list of parsed call_env_pairs.

Definition at line 247 of file call_env.h.

Collaboration diagram for call_env_s:

Data Fields
call_env_method_t const *	method	The method this call env is for.
call_env_parsed_head_t	parsed	The per call parsed call environment.

Macro Definition Documentation

call_env_attribute

#define call_env_attribute

(

_flags

)

((_flags) & CALL_ENV_FLAG_ATTRIBUTE)

Definition at line 125 of file call_env.h.

call_env_concat

#define call_env_concat

(

_flags

)

((_flags) & CALL_ENV_FLAG_CONCAT)

Definition at line 113 of file call_env.h.

CALL_ENV_FLAGS

#define CALL_ENV_FLAGS	(		_cast_type,
			_flags,
			_struct,
			_field
	)

Value:

        (FR_CALL_ENV_CONCAT(((_flags) & CALL_ENV_FLAG_CONCAT), _cast_type) | \
                        FR_CALL_ENV_SINGLE(_struct, _field, ((_flags) & CALL_ENV_FLAG_CONCAT)) | \
                        FR_CALL_ENV_MULTI(_struct, _field) |\
                        ((_flags) & ~CALL_ENV_FLAG_CONCAT)) \

Definition at line 321 of file call_env.h.

call_env_force_quote

#define call_env_force_quote

(

_flags

)

((_flags) & CALL_ENV_FLAG_FORCE_QUOTE)

Definition at line 121 of file call_env.h.

call_env_is_subsection

#define call_env_is_subsection

(

_flags

)

((_flags) & CALL_ENV_FLAG_SUBSECTION)

Definition at line 127 of file call_env.h.

call_env_multi

#define call_env_multi

(

_flags

)

((_flags) & CALL_ENV_FLAG_MULTI)

Definition at line 117 of file call_env.h.

call_env_nullable

#define call_env_nullable

(

_flags

)

((_flags) & CALL_ENV_FLAG_NULLABLE)

Definition at line 119 of file call_env.h.

call_env_pair_flags

#define call_env_pair_flags

(

_flags

)

(((_flags) & (CALL_ENV_FLAG_SUBSECTION)) == 0)

Evaluates to true if flags are valid for a pair.

Parameters

[in]

_flags

to evaluate

Definition at line 103 of file call_env.h.

call_env_parse_missing

#define call_env_parse_missing

(

_flags

)

((_flags) & CALL_ENV_FLAG_PARSE_MISSING)

Definition at line 129 of file call_env.h.

call_env_parse_only

#define call_env_parse_only

(

_flags

)

((_flags) & CALL_ENV_FLAG_PARSE_ONLY)

Definition at line 123 of file call_env.h.

CALL_ENV_PARSE_TYPE

#define CALL_ENV_PARSE_TYPE	(		_s,
			_f
	)

Value:

_Generic((((_s *)NULL)->_f), \
        tmpl_t const *                  : CALL_ENV_PARSE_TYPE_TMPL, \
        tmpl_t *                        : CALL_ENV_PARSE_TYPE_TMPL, \
        fr_value_box_t const *          : CALL_ENV_PARSE_TYPE_VALUE_BOX, \
        fr_value_box_t *                : CALL_ENV_PARSE_TYPE_VALUE_BOX, \
        default                         : CALL_ENV_PARSE_TYPE_VOID \
)

Where we're specifying a parsing phase output field, determine its type.

Definition at line 254 of file call_env.h.

call_env_required

#define call_env_required

(

_flags

)

((_flags) & CALL_ENV_FLAG_REQUIRED)

Definition at line 111 of file call_env.h.

call_env_secret

#define call_env_secret

(

_flags

)

((_flags) & CALL_ENV_FLAG_SECRET)

Definition at line 131 of file call_env.h.

call_env_single

#define call_env_single

(

_flags

)

((_flags) & CALL_ENV_FLAG_SINGLE)

Definition at line 115 of file call_env.h.

call_env_subsection_flags

#define call_env_subsection_flags

(

_flags

)

(((_flags) & (CALL_ENV_FLAG_CONCAT | CALL_ENV_FLAG_SINGLE | CALL_ENV_FLAG_MULTI | CALL_ENV_FLAG_NULLABLE | CALL_ENV_FLAG_FORCE_QUOTE | CALL_ENV_FLAG_ATTRIBUTE | CALL_ENV_FLAG_PARSE_MISSING)) == 0)

Evaluates to true if flags are valid for a subsection.

Parameters

[in]

_flags

to evaluate

Definition at line 109 of file call_env.h.

CALL_ENV_TERMINATOR

#define CALL_ENV_TERMINATOR   { NULL }

Definition at line 231 of file call_env.h.

FR_CALL_ENV_CONCAT

#define FR_CALL_ENV_CONCAT	(		_c,
			_ct
	)

Value:

__builtin_choose_expr(_ct == FR_TYPE_STRING, _c, \
__builtin_choose_expr(_ct == FR_TYPE_OCTETS, _c, \
__builtin_choose_expr(_c, (void)0, false)))

Only FR_TYPE_STRING and FR_TYPE_OCTETS can be concatenated.

Definition at line 286 of file call_env.h.

FR_CALL_ENV_DST_SIZE

#define FR_CALL_ENV_DST_SIZE	(		_s,
			_f
	)

Value:

_Generic((((_s *)NULL)->_f), \
        fr_value_box_t                  : sizeof(fr_value_box_t), \
        fr_value_box_t *                : sizeof(fr_value_box_t), \
        fr_value_box_list_t             : sizeof(fr_value_box_list_t), \
        fr_value_box_list_t *           : sizeof(fr_value_box_list_t), \
        default                         : 0 \
)

Definition at line 301 of file call_env.h.

FR_CALL_ENV_DST_TYPE

#define FR_CALL_ENV_DST_TYPE	(		_s,
			_f
	)

Value:

_Generic((((_s *)NULL)->_f), \
        fr_value_box_t                  : CALL_ENV_RESULT_TYPE_VALUE_BOX, \
        fr_value_box_t *                : CALL_ENV_RESULT_TYPE_VALUE_BOX, \
        fr_value_box_list_t             : CALL_ENV_RESULT_TYPE_VALUE_BOX_LIST, \
        fr_value_box_list_t *           : CALL_ENV_RESULT_TYPE_VALUE_BOX_LIST \
)

Mapping from field types to destination type enum.

Definition at line 293 of file call_env.h.

FR_CALL_ENV_METHOD_OUT

#define FR_CALL_ENV_METHOD_OUT

(

_inst

)

Value:

        .inst_size = sizeof(_inst), \
        .inst_type = STRINGIFY(_inst) \

Helper macro for populating the size/type fields of a call_env_method_t from the output structure type.

Definition at line 235 of file call_env.h.

FR_CALL_ENV_MULTI

#define FR_CALL_ENV_MULTI	(		_s,
			_f
	)

Value:

_Generic((((_s *)NULL)->_f), \
        fr_value_box_t                  : CALL_ENV_FLAG_NONE, \
        fr_value_box_t *                : CALL_ENV_FLAG_MULTI, \
        fr_value_box_list_t             : CALL_ENV_FLAG_NONE, \
        fr_value_box_list_t *           : CALL_ENV_FLAG_MULTI \
)

Derive whether multi conf pairs are allowed from target field type.

Definition at line 276 of file call_env.h.

FR_CALL_ENV_OFFSET

#define FR_CALL_ENV_OFFSET	(		_name,
			_cast_type,
			_flags,
			_struct,
			_field
	)

Value:

        .name = _name, \
        .flags = CALL_ENV_FLAGS(_cast_type, _flags, _struct, _field), \
        .pair = { \
                .cast_type = _cast_type, \
                .type = FR_CALL_ENV_DST_TYPE(_struct, _field), \
                .size = FR_CALL_ENV_DST_SIZE(_struct, _field), \
                .type_name = FR_CALL_ENV_RESULT_TYPE_NAME(_struct, _field), \
                .offset = offsetof(_struct, _field), \
                .parsed = { \
                        .offset = -1, \
                        .type = CALL_ENV_PARSE_TYPE_TMPL \
                } \
        }

Specify a call_env_parser_t which writes out runtime results to the specified field.

Parameters

[in]	_name	of the conf pair to parse.
[in]	_cast_type	Cast any value boxes produced to this type.
[in]	_flags	controlling parser behaviour.
[in]	_struct	which contains the field to write the result of the evaluation phase to.
[in]	_field	where to write the result.

Definition at line 335 of file call_env.h.

FR_CALL_ENV_PARSE_OFFSET

#define FR_CALL_ENV_PARSE_OFFSET	(		_name,
			_cast_type,
			_flags,
			_struct,
			_field,
			_parse_field
	)

Value:

        .name = _name, \
        .flags = CALL_ENV_FLAGS(_cast_type, _flags, _struct, _field), \
        .pair = { \
                .cast_type = _cast_type, \
                .type = FR_CALL_ENV_DST_TYPE(_struct, _field), \
                .size = FR_CALL_ENV_DST_SIZE(_struct, _field), \
                .type_name = FR_CALL_ENV_RESULT_TYPE_NAME(_struct, _field), \
                .offset = offsetof(_struct, _field), \
                .parsed = { \
                        .offset = offsetof(_struct, _parse_field), \
                        .type = CALL_ENV_PARSE_TYPE(_struct, _parse_field) \
                } \
        }

Specify a call_env_parser_t which writes out runtime results and the result of the parsing phase to the fields specified.

Parameters

[in]	_name	of the conf pair to parse.
[in]	_cast_type	Cast any value boxes produced to this type.
[in]	_flags	controlling parser behaviour.
[in]	_struct	which contains the field to write the result of the evaluation phase to.
[in]	_field	where to write the result.
[in]	_parse_field	where to write the result of the parsing phase. This must be a field in the specified _struct.

Definition at line 360 of file call_env.h.

FR_CALL_ENV_PARSE_ONLY_OFFSET

#define FR_CALL_ENV_PARSE_ONLY_OFFSET	(		_name,
			_cast_type,
			_flags,
			_struct,
			_parse_field
	)

Value:

        .name = _name, \
        .flags = (_flags) | CALL_ENV_FLAG_PARSE_ONLY, \
        .pair = { \
                .cast_type = _cast_type, \
                .parsed = { \
                        .offset = offsetof(_struct, _parse_field), \
                        .type = CALL_ENV_PARSE_TYPE(_struct, _parse_field) \
                } \
        }

Specify a call_env_parser_t which writes out the result of the parsing phase to the field specified.

Parameters

[in]	_name	of the conf pair to parse.
[in]	_cast_type	Sets the cast used by the tmpl.
[in]	_flags	controlling parser behaviour.
[in]	_struct	which contains the field to write the result of the evaluation phase to.
[in]	_parse_field	where to write the result of the parsing phase. This must be a field in the specified _struct.

Definition at line 384 of file call_env.h.

FR_CALL_ENV_RESULT_TYPE_NAME

#define FR_CALL_ENV_RESULT_TYPE_NAME	(		_s,
			_f
	)

Value:

_Generic((((_s *)NULL)->_f), \
        fr_value_box_t                  : "fr_value_box_t", \
        fr_value_box_t *                : "fr_value_box_t", \
        fr_value_box_list_t             : "fr_value_box_list_t", \
        fr_value_box_list_t *           : "fr_value_box_list_t", \
        default                         : NULL \
)

Definition at line 310 of file call_env.h.

FR_CALL_ENV_SINGLE

#define FR_CALL_ENV_SINGLE	(		_s,
			_f,
			_c
	)

Value:

_Generic((((_s *)NULL)->_f), \
        fr_value_box_t                  : __builtin_choose_expr(_c, CALL_ENV_FLAG_NONE, CALL_ENV_FLAG_SINGLE), \
        fr_value_box_t *                : __builtin_choose_expr(_c, CALL_ENV_FLAG_NONE, CALL_ENV_FLAG_SINGLE), \
        fr_value_box_list_t             : CALL_ENV_FLAG_NONE, \
        fr_value_box_list_t *           : CALL_ENV_FLAG_NONE, \
        default                         : CALL_ENV_FLAG_NONE \
)

Derive whether tmpl can only emit a single box.

Definition at line 265 of file call_env.h.

FR_CALL_ENV_SUBSECTION

#define FR_CALL_ENV_SUBSECTION	(		_name,
			_name2,
			_flags,
			_subcs
	)

Value:

        .name = _name, \
        .flags = CALL_ENV_FLAG_SUBSECTION | (_flags), \
        .section = { \
                .name2 = _name2, \
                .subcs = _subcs, \
        }

Specify a call_env_parser_t which defines a nested subsection.

Definition at line 397 of file call_env.h.

FR_CALL_ENV_SUBSECTION_FUNC

#define FR_CALL_ENV_SUBSECTION_FUNC	(		_name,
			_name2,
			_flags,
			_func
	)

Value:

        .name = _name, \
        .flags = CALL_ENV_FLAG_SUBSECTION | (_flags), \
        .section = { \
                .name2 = _name2, \
                .func = _func \
        }

Specify a call_env_parser_t which parses a subsection using a callback function.

Definition at line 407 of file call_env.h.

Typedef Documentation

_mismatch_flags

typedef void _mismatch_flags

Dummy type used to indicate bad flags.

Definition at line 319 of file call_env.h.

call_env_ctx_t

typedef struct call_env_ctx_s call_env_ctx_t

Definition at line 1 of file call_env.h.

call_env_method_t

typedef struct call_env_method_s call_env_method_t

Definition at line 1 of file call_env.h.

call_env_parse_pair_t

typedef int(* call_env_parse_pair_t) (TALLOC_CTX *ctx, void *out, tmpl_rules_t const *t_rules, CONF_ITEM *ci, call_env_ctx_t const *cec, call_env_parser_t const *rule)

Callback for performing custom parsing of a CONF_PAIR.

Parameters

[in]	ctx	to allocate any data in.
[out]	out	Where to write the result of parsing.
[in]	t_rules	we're parsing attributes with. Contains the default dictionary and nested 'caller' tmpl_rules_t.
[in]	ci	The CONF_SECTION or CONF_PAIR to parse.
[in]	cec	information about how the call env is being used.
[in]	rule	Parse rules - How the CONF_PAIR or CONF_SECTION should be converted.

Returns

• 0 on success.
• -1 on failure.

Definition at line 146 of file call_env.h.

call_env_parse_section_t

typedef int(* call_env_parse_section_t) (TALLOC_CTX *ctx, call_env_parsed_head_t *out, tmpl_rules_t const *t_rules, CONF_ITEM *ci, call_env_ctx_t const *cec, call_env_parser_t const *rule)

Callback for performing custom parsing of a CONF_SECTION.

The callback function is expected to call call_env_parsed_add to allocate a new call_env_parsed_t, and either call_env_parsed_set_tmpl, or call_env_parsed_set_data to populate the call env_parsed_t structure.

Parameters

[in]	ctx	to allocate any data in.
[out]	out	Where to write the result of parsing.
[in]	t_rules	we're parsing attributes with. Contains the default dictionary and nested 'caller' tmpl_rules_t.
[in]	ci	The CONF_SECTION or CONF_PAIR to parse.
[in]	cec	information about how the call env is being used.
[in]	rule	Parse rules - How the CONF_PAIR or CONF_SECTION should be converted.

Returns

• 0 on success.
• -1 on failure.

Definition at line 164 of file call_env.h.

call_env_parsed_t

typedef struct call_env_parsed_s call_env_parsed_t

Definition at line 1 of file call_env.h.

call_env_parser_t

typedef struct call_env_parser_s call_env_parser_t

Definition at line 1 of file call_env.h.

call_env_t

typedef struct call_env_s call_env_t

Definition at line 1 of file call_env.h.

Enumeration Type Documentation

call_env_ctx_type_t

enum call_env_ctx_type_t

Enumerator
CALL_ENV_CTX_TYPE_MODULE	The callenv is registered to a module method.
CALL_ENV_CTX_TYPE_XLAT	The callenv is registered to an xlat.

Definition at line 216 of file call_env.h.

call_env_flags_t

enum call_env_flags_t

Enumerator
CALL_ENV_FLAG_NONE
CALL_ENV_FLAG_REQUIRED	Associated conf pair or section is required.
CALL_ENV_FLAG_CONCAT	If the tmpl produced multiple boxes they should be concatenated.
CALL_ENV_FLAG_SINGLE	If the tmpl produces more than one box this is an error.
CALL_ENV_FLAG_MULTI	Multiple instances of the conf pairs are allowed. Resulting boxes are stored in an array - one entry per conf pair.
CALL_ENV_FLAG_NULLABLE	Tmpl expansions are allowed to produce no output.
CALL_ENV_FLAG_FORCE_QUOTE	Force quote method when parsing tmpl. This is for corner cases where tmpls should always be parsed with a particular quoting regardless of how they are in the config file. E.g. the program option of rlm_exec should always be parsed as T_BACK_QUOTED_STRING.
CALL_ENV_FLAG_PARSE_ONLY	The result of parsing will not be evaluated at runtime.
CALL_ENV_FLAG_ATTRIBUTE	Tmpl must contain an attribute reference.
CALL_ENV_FLAG_SUBSECTION	This is a subsection.
CALL_ENV_FLAG_PARSE_MISSING	If this subsection is missing, still parse it. Useful for cases where there is a callback which always needs to be run to set up required data structures.
CALL_ENV_FLAG_SECRET	The value is a secret, and should not be logged.

Definition at line 73 of file call_env.h.

call_env_parse_type_t

enum call_env_parse_type_t

What type of structure is produced by the parsing phase.

Enumerator
CALL_ENV_PARSE_TYPE_TMPL	Output of the parsing phase is a tmpl_t.
CALL_ENV_PARSE_TYPE_VALUE_BOX	Output of the parsing phase is a single value box (static data).
CALL_ENV_PARSE_TYPE_VOID	Output of the parsing phase is undefined (a custom structure).

Definition at line 59 of file call_env.h.

call_env_result_t

enum call_env_result_t

Enumerator
CALL_ENV_SUCCESS
CALL_ENV_MISSING
CALL_ENV_INVALID

Definition at line 51 of file call_env.h.

call_env_result_type_t

enum call_env_result_type_t

What type of structure is produced by the evaluation phase.

Enumerator
CALL_ENV_RESULT_TYPE_VALUE_BOX	Output of the evaluation phase is a single value box.
CALL_ENV_RESULT_TYPE_VALUE_BOX_LIST	Output of the evaluation phase is a list of value boxes.

Definition at line 67 of file call_env.h.

Function Documentation

call_env_alloc()

call_env_t* call_env_alloc	(	TALLOC_CTX *	ctx,
		char const *	name,
		call_env_method_t const *	call_env_method,
		tmpl_rules_t const *	t_rules,
		CONF_SECTION *	cs,
		call_env_ctx_t const *	cec
	)

Given a call_env_method, parse all call_env_pair_t in the context of a specific call to an xlat or module method.

Parameters

[in]	ctx	to allocate the call_env_t in.
[in]	name	Module name for error messages.
[in]	call_env_method	containing the call_env_pair_t to evaluate against the specified CONF_SECTION.
[in]	t_rules	that control how call_env_pair_t are parsed.
[in]	cs	to parse in the context of the call.
[in]	cec	information about how the call is being made.

Returns

• A new call_env_t on success.
  • NULL on failure.

Definition at line 736 of file call_env.c.

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call_env_expand()

unlang_action_t call_env_expand	(	TALLOC_CTX *	ctx,
		request_t *	request,
		call_env_result_t *	env_result,
		void **	env_data,
		call_env_t const *	call_env
	)

Initialise the expansion of a call environment.

Parameters

[in]	ctx	in which to allocate destination structure for resulting value boxes.
[in]	request	Current request.
[out]	env_result	Where to write the result of the callenv expansion. May be NULL
[in,out]	env_data	Where the destination structure should be created.
[in]	call_env	Call environment being expanded.

Definition at line 295 of file call_env.c.

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call_env_parse_pair()

int call_env_parse_pair	(	TALLOC_CTX *	ctx,
		void *	out,
		tmpl_rules_t const *	t_rules,
		CONF_ITEM *	ci,
		call_env_ctx_t const *	cec,
		call_env_parser_t const *	rule
	)

call_env_parsed_add()

call_env_parsed_t* call_env_parsed_add	(	TALLOC_CTX *	ctx,
		call_env_parsed_head_t *	head,
		call_env_parser_t const *	rule
	)

Allocate a new call_env_parsed_t structure and add it to the list of parsed call envs.

Note

tmpl_t and void * should be allocated in the context of the call_env_parsed_t

Parameters

[in]	ctx	to allocate the new call_env_parsed_t in.
[out]	head	to add the new call_env_parsed_t to.
[in]	rule	to base call_env_parsed_t around. MUST NOT BE THE RULE PASSED TO THE CALLBACK. The rule passed to the callback describes how to parse a subsection, but the subsection callback is adding rules describing how to parse its children.

Returns

The new call_env_parsed_t.

Definition at line 631 of file call_env.c.

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call_env_parsed_free()

void call_env_parsed_free	(	call_env_parsed_head_t *	parsed,
		call_env_parsed_t *	ptr
	)

Remove a call_env_parsed_t from the list of parsed call envs.

Note

Intended to be used by subsection callbacks to remove a call_env_parsed_t from the list of parsed call envs (typically on error).

Parameters

[in]	parsed	to remove parsed data from.
[in]	ptr	to remove.

Definition at line 718 of file call_env.c.

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call_env_parsed_set_data()

void call_env_parsed_set_data	(	call_env_parsed_t *	parsed,
		void const *	data
	)

Assign data to a call_env_parsed_t.

Note

Intended to be used by subsection callbacks to set arbitrary data to be written out to the result structure.

Parameters

[in]	parsed	to assign the tmpl to.
[in]	data	to assign.

Definition at line 688 of file call_env.c.

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call_env_parsed_set_multi_index()

void call_env_parsed_set_multi_index	(	call_env_parsed_t *	parsed,
		size_t	count,
		size_t	index
	)

Assign a count and index to a call_env_parsed_t.

Note

Intended to be used by subsection callbacks to indicate related call_env_parsed_t.

Parameters

[in]	parsed	to modify metadata of.
[in]	count	to assign.
[in]	index	to assign.

Definition at line 703 of file call_env.c.

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call_env_parsed_set_tmpl()

void call_env_parsed_set_tmpl	(	call_env_parsed_t *	parsed,
		tmpl_t const *	tmpl
	)

Assign a tmpl to a call_env_parsed_t.

Note

Intended to be used by subsection callbacks to add a tmpl to be evaluated during the call.

Parameters

[in]	parsed	to assign the tmpl to.
[in]	tmpl	to assign.

Definition at line 660 of file call_env.c.

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call_env_parsed_set_value()

void call_env_parsed_set_value	(	call_env_parsed_t *	parsed,
		fr_value_box_t const *	vb
	)

Assign a value box to a call_env_parsed_t.

Note

Intended to be used by subsection callbacks to set a static boxed value to be written out to the result structure.

Parameters

[in]	parsed	to assign the tmpl to.
[in]	vb	to assign.

Definition at line 674 of file call_env.c.

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