tmpl_tokenize.c File Reference

fr_pair_t template functions More...

#include <freeradius-devel/server/tmpl.h>
#include <freeradius-devel/server/base.h>
#include <freeradius-devel/protocol/freeradius/freeradius.internal.h>
#include <freeradius-devel/util/debug.h>
#include <freeradius-devel/util/base16.h>
#include <freeradius-devel/util/misc.h>
#include <freeradius-devel/util/sbuff.h>
#include <freeradius-devel/util/value.h>
#include <ctype.h>

Include dependency graph for tmpl_tokenize.c:

Go to the source code of this file.

Macros
#define	_TMPL_PRIVATE   1
#define	DEFAULT_RULES   tmpl_rules_t const default_rules = { .attr = { .list_def = request_attr_request }}
	Default parser rules. More...
#define	RESOLVED_SET(_flags)   (*(_flags) = (*(_flags) & ~TMPL_FLAG_UNRESOLVED))
#define	return_P(_x)   fr_strerror_const(_x);goto return_p
#define	TMPL_REQUEST_REF_DEF(_name, _ref)
	Define a global variable for specifying a default request reference. More...
#define	UNRESOLVED_SET(_flags)   (*(_flags) = (*(_flags) | TMPL_FLAG_UNRESOLVED))

Functions
ssize_t	tmpl_afrom_attr_str (TALLOC_CTX *ctx, tmpl_attr_error_t *err, tmpl_t **out, char const *name, tmpl_rules_t const *t_rules)
	Parse a string into a TMPL_TYPE_ATTR_* type tmpl_t. More...
ssize_t	tmpl_afrom_attr_substr (TALLOC_CTX *ctx, tmpl_attr_error_t *err, tmpl_t **out, fr_sbuff_t *name, fr_sbuff_parse_rules_t const *p_rules, tmpl_rules_t const *t_rules)
	Parse a string into a TMPL_TYPE_ATTR_* type tmpl_t. More...
static fr_slen_t	tmpl_afrom_bool_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
	Parse a truth value. More...
static ssize_t	tmpl_afrom_enum (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules, tmpl_rules_t const *t_rules)
static ssize_t	tmpl_afrom_ether_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
	Try and parse signed or unsigned integers. More...
static ssize_t	tmpl_afrom_float_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
static fr_slen_t	tmpl_afrom_integer_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
	Try and parse signed or unsigned integers. More...
static fr_slen_t	tmpl_afrom_ipv4_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
	Parse bareword as an IPv4 address or prefix. More...
static fr_slen_t	tmpl_afrom_ipv6_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
	Parse bareword as an IPv6 address or prefix. More...
static fr_slen_t	tmpl_afrom_octets_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
	Parse bareword as an octet string. More...
fr_slen_t	tmpl_afrom_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_token_t quote, fr_sbuff_parse_rules_t const *p_rules, tmpl_rules_t const *t_rules)
	Convert an arbitrary string into a tmpl_t. More...
static ssize_t	tmpl_afrom_time_delta (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
static fr_slen_t	tmpl_afrom_value_substr (TALLOC_CTX *ctx, tmpl_t **out, fr_sbuff_t *in, fr_token_t quote, tmpl_rules_t const *t_rules, bool allow_enum, fr_sbuff_parse_rules_t const *p_rules)
	Create TMPL_TYPE_DATA from a string. More...
bool	tmpl_async_required (tmpl_t const *vpt)
	Return whether or not async is required for this tmpl. More...
static int	tmpl_attr_afrom_attr_substr (TALLOC_CTX *ctx, tmpl_attr_error_t *err, tmpl_t *vpt, fr_dict_attr_t const *parent, fr_dict_attr_t const *namespace, fr_sbuff_t *name, fr_sbuff_parse_rules_t const *p_rules, tmpl_attr_rules_t const *at_rules, unsigned int depth)
	Parse an attribute reference, either an OID or attribute name. More...
void	tmpl_attr_debug (tmpl_t const *vpt)
static void	tmpl_attr_insert (tmpl_t *vpt, tmpl_attr_t *ar)
	Insert an attribute reference into a tmpl. More...
static fr_slen_t	tmpl_attr_parse_filter (tmpl_attr_error_t *err, tmpl_attr_t *ar, fr_sbuff_t *name, tmpl_attr_rules_t const *at_rules)
	Parse array subscript and in future other filters. More...
static fr_slen_t	tmpl_attr_ref_afrom_unresolved_substr (TALLOC_CTX *ctx, tmpl_attr_error_t *err, tmpl_t *vpt, fr_dict_attr_t const *parent, fr_dict_attr_t const *namespace, fr_sbuff_t *name, tmpl_attr_rules_t const *at_rules)
	Parse an unresolved attribute, i.e. More...
void	tmpl_attr_ref_debug (const tmpl_attr_t *ar, int i)
static void	tmpl_attr_ref_fixup (TALLOC_CTX *ctx, tmpl_t *vpt, fr_dict_attr_t const *da, fr_dict_attr_t const *parent)
static fr_slen_t	tmpl_attr_ref_from_unspecified_substr (tmpl_attr_t *ar, tmpl_attr_error_t *err, tmpl_t *vpt, fr_sbuff_t *name, tmpl_attr_rules_t const *at_rules)
void	tmpl_attr_ref_list_debug (FR_DLIST_HEAD(tmpl_attr_list) const *ar_head)
static void	tmpl_attr_rules_debug (tmpl_attr_rules_t const *at_rules)
ssize_t	tmpl_cast_from_substr (tmpl_rules_t *rules, fr_sbuff_t *in)
	Parse a cast specifier. More...
int	tmpl_cast_set (tmpl_t *vpt, fr_type_t dst_type)
	Set a cast for a tmpl. More...
tmpl_t *	tmpl_copy (TALLOC_CTX *ctx, tmpl_t const *in)
	Copy a tmpl. More...
void	tmpl_debug (tmpl_t const *vpt)
ssize_t	tmpl_preparse (char const **out, size_t *outlen, char const *in, size_t inlen, fr_token_t *type)
	Preparse a string in preparation for passing it to tmpl_afrom_substr() More...
	TMPL_REQUEST_REF_DEF (tmpl_request_def_current, REQUEST_CURRENT)
	Use the current request as the default. More...
	TMPL_REQUEST_REF_DEF (tmpl_request_def_outer, REQUEST_OUTER)
	Use the outer request as the default. More...
	TMPL_REQUEST_REF_DEF (tmpl_request_def_parent, REQUEST_PARENT)
	Use the parent request as the default. More...
void	tmpl_rules_child_init (TALLOC_CTX *ctx, tmpl_rules_t *out, tmpl_rules_t const *parent, tmpl_t *vpt)
	Initialize a set of rules from a parent set of rules, and a parsed tmpl_t. More...
void	tmpl_rules_debug (tmpl_rules_t const *rules)
static bool	tmpl_substr_terminal_check (fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules)
	Verify, after skipping whitespace, that a substring ends in a terminal char, or ends without further chars. More...

Variables
static fr_table_num_sorted_t const	attr_num_table []
	Special attribute reference indexes. More...
static size_t	attr_num_table_len = NUM_ELEMENTS(attr_num_table)
static fr_table_num_ordered_t const	attr_table []
	Attr ref types. More...
static size_t	attr_table_len = NUM_ELEMENTS(attr_table)
fr_dict_attr_t const *	tmpl_attr_unspec
	Placeholder attribute for uses of unspecified attribute references. More...
fr_table_num_sorted_t const	tmpl_request_ref_table []
	Map keywords to tmpl_request_ref_t values. More...
size_t	tmpl_request_ref_table_len = NUM_ELEMENTS(tmpl_request_ref_table)
bool	tmpl_require_enum_prefix = false
fr_table_num_ordered_t const	tmpl_type_table []
	Map tmpl_type_t values to descriptive strings. More...
size_t	tmpl_type_table_len = NUM_ELEMENTS(tmpl_type_table)

Change a #tmpl_t type, usually by casting or resolving a reference
tmpl_cast_in_place can be used to convert TMPL_TYPE_DATA_UNRESOLVED to a TMPL_TYPE_DATA of a specified fr_type_t. tmpl_attr_unknown_add converts a TMPL_TYPE_ATTR with an unknown fr_dict_attr_t to a TMPL_TYPE_ATTR with a known fr_dict_attr_t, by adding the unknown fr_dict_attr_t to the main dictionary, and updating the tmpl_attr_tail_da pointer.
static void	attr_to_raw (tmpl_t *vpt, tmpl_attr_t *ref)
static int	tmpl_attr_resolve (tmpl_t *vpt, tmpl_res_rules_t const *tr_rules)
	Resolve an unresolved attribute. More...
int	tmpl_attr_tail_unresolved_add (fr_dict_t *dict_def, tmpl_t *vpt, fr_type_t type, fr_dict_attr_flags_t const *flags)
	Add an unresolved fr_dict_attr_t specified by a tmpl_t to the main dictionary. More...
void	tmpl_attr_to_raw (tmpl_t *vpt)
	Convert the leaf attribute of a tmpl to a unknown/raw type. More...
int	tmpl_attr_to_xlat (TALLOC_CTX *ctx, tmpl_t **vpt_p)
	Convert an attribute reference to an xlat expansion. More...
int	tmpl_attr_unknown_add (tmpl_t *vpt)
	Add an unknown fr_dict_attr_t specified by a tmpl_t to the main dictionary. More...
int	tmpl_cast_in_place (tmpl_t *vpt, fr_type_t type, fr_dict_attr_t const *enumv)
	Convert tmpl_t of type TMPL_TYPE_DATA_UNRESOLVED or TMPL_TYPE_DATA to TMPL_TYPE_DATA of type specified. More...
static fr_token_t	tmpl_cast_quote (fr_token_t existing_quote, fr_type_t type, fr_dict_attr_t const *enumv, char const *unescaped, size_t unescaped_len)
	Determine the correct quoting after a cast. More...
int	tmpl_resolve (tmpl_t *vpt, tmpl_res_rules_t const *tr_rules)
	Attempt to resolve functions and attributes in xlats and attribute references. More...
void	tmpl_unresolve (tmpl_t *vpt)
	Reset the tmpl, leaving only the name in place. More...
static int	tmpl_xlat_resolve (tmpl_t *vpt, tmpl_res_rules_t const *tr_rules)
	Resolve an unresolved xlat, i.e. More...

Parse list and request qualifiers to #fr_pair_list_t and #tmpl_request_ref_t values
These functions also resolve fr_pair_list_t and tmpl_request_ref_t values to request_t structs and the head of fr_pair_t lists in those structs. For adding new fr_pair_t to the lists, the tmpl_list_ctx function can be used to obtain the appropriate TALLOC_CTX pointer. Note These don't really have much to do with tmpl_t. They're in the same file as they're used almost exclusively by the tmpl_* functions.
fr_slen_t	tmpl_attr_list_from_substr (fr_dict_attr_t const **da_p, fr_sbuff_t *in)
	Parse one a single list reference. More...
static void	tmpl_request_ref_list_acopy (TALLOC_CTX *ctx, FR_DLIST_HEAD(tmpl_request_list) **out, FR_DLIST_HEAD(tmpl_request_list) const *in)
	Allocate a new request reference list and copy request references into it. More...
fr_slen_t	tmpl_request_ref_list_afrom_substr (TALLOC_CTX *ctx, tmpl_attr_error_t *err, FR_DLIST_HEAD(tmpl_request_list) **out, fr_sbuff_t *in)
	Parse one or more request references, allocing a new list and adding the references to it. More...
int8_t	tmpl_request_ref_list_cmp (FR_DLIST_HEAD(tmpl_request_list) const *a, FR_DLIST_HEAD(tmpl_request_list) const *b)
	Compare a list of request qualifiers. More...
static void	tmpl_request_ref_list_copy (TALLOC_CTX *ctx, FR_DLIST_HEAD(tmpl_request_list) *out, FR_DLIST_HEAD(tmpl_request_list) const *in)
	Allocate a new request reference and add it to the end of the attribute reference list. More...
void	tmpl_request_ref_list_debug (FR_DLIST_HEAD(tmpl_request_list) const *rql)
	Dump a request list to stderr. More...
static fr_slen_t	tmpl_request_ref_list_from_substr (TALLOC_CTX *ctx, tmpl_attr_error_t *err, FR_DLIST_HEAD(tmpl_request_list) *out, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *p_rules, tmpl_rules_t const *t_rules, fr_dict_attr_t const **namespace)
	Parse one or more request references, writing the list to out. More...

Alloc or initialise #tmpl_t
Note Should not usually be called outside of tmpl_* functions, use one of the tmpl_*from_* functions instead.
tmpl_t *	tmpl_alloc (TALLOC_CTX *ctx, tmpl_type_t type, fr_token_t quote, char const *name, ssize_t len)
	Create a new heap allocated tmpl_t. More...
static tmpl_t *	tmpl_alloc_null (TALLOC_CTX *ctx)
	Create a new heap allocated tmpl_t. More...
tmpl_t *	tmpl_init (tmpl_t *vpt, tmpl_type_t type, fr_token_t quote, char const *name, ssize_t len, tmpl_rules_t const *t_rules)
	Initialise a tmpl using a literal string to create the name. More...
tmpl_t *	tmpl_init_printf (tmpl_t *vpt, tmpl_type_t type, fr_token_t quote, char const *fmt,...)
	Initialise a tmpl using a format string to create the name. More...
tmpl_t *	tmpl_init_shallow (tmpl_t *vpt, tmpl_type_t type, fr_token_t quote, char const *name, ssize_t len, tmpl_rules_t const *t_rules)
	Initialise a tmpl without copying the input name string. More...
void	tmpl_set_dict_def (tmpl_t *vpt, fr_dict_t const *dict)
	Change the default dictionary in the tmpl's resolution rules. More...
void	tmpl_set_escape (tmpl_t *vpt, tmpl_escape_t const *escape)
	Set escape parameters for the tmpl output. More...
void	tmpl_set_name (tmpl_t *vpt, fr_token_t quote, char const *name, ssize_t len)
	Set the name on a pre-initialised tmpl. More...
void	tmpl_set_name_printf (tmpl_t *vpt, fr_token_t quote, char const *fmt,...)
	Set the name on a pre-initialised tmpl. More...
void	tmpl_set_name_shallow (tmpl_t *vpt, fr_token_t quote, char const *name, ssize_t len)
	Set the name on a pre-initialised tmpl. More...
void	tmpl_set_xlat (tmpl_t *vpt, xlat_exp_head_t *xlat)
	Change the default dictionary in the tmpl's resolution rules. More...
static void	tmpl_type_init (tmpl_t *vpt, tmpl_type_t type)
	Initialise fields inside a tmpl depending on its type. More...

Create new #tmpl_t from a string
int	tmpl_afrom_value_box (TALLOC_CTX *ctx, tmpl_t **out, fr_value_box_t *data, bool steal)
	Create a tmpl_t from a fr_value_box_t. More...
static tmpl_attr_t *	tmpl_attr_add (tmpl_t *vpt, tmpl_attr_type_t type)
	Allocate a new attribute reference and add it to the end of the attribute reference list. More...
int	tmpl_attr_afrom_list (TALLOC_CTX *ctx, tmpl_t **out, tmpl_t const *list, fr_dict_attr_t const *da)
	Create a new tmpl from a list tmpl and a da. More...
int	tmpl_attr_copy (tmpl_t *dst, tmpl_t const *src)
	Copy a list of attribute and request references from one tmpl to another. More...
void	tmpl_attr_rewrite_leaf_num (tmpl_t *vpt, int16_t to)
	Rewrite the leaf's instance number. More...
int	tmpl_attr_set_da (tmpl_t *vpt, fr_dict_attr_t const *da)
	Replace the current attribute reference. More...
int	tmpl_attr_set_leaf_da (tmpl_t *vpt, fr_dict_attr_t const *da)
	Replace the leaf attribute only. More...
void	tmpl_attr_set_list (tmpl_t *vpt, fr_dict_attr_t const *list)
void	tmpl_attr_set_request_ref (tmpl_t *vpt, FR_DLIST_HEAD(tmpl_request_list) const *request_def)
	Set the request for an attribute ref. More...

Print the contents of a #tmpl_t
fr_slen_t	tmpl_attr_print (fr_sbuff_t *out, tmpl_t const *vpt, tmpl_attr_prefix_t ar_prefix)
	Print an attribute or list tmpl_t to a string. More...
fr_slen_t	tmpl_print (fr_sbuff_t *out, tmpl_t const *vpt, tmpl_attr_prefix_t ar_prefix, fr_sbuff_escape_rules_t const *e_rules)
	Print a tmpl_t to a string. More...
fr_slen_t	tmpl_print_quoted (fr_sbuff_t *out, tmpl_t const *vpt, tmpl_attr_prefix_t ar_prefix)
	Print a tmpl_t to a string with quotes. More...
fr_slen_t	tmpl_request_ref_list_print (fr_sbuff_t *out, FR_DLIST_HEAD(tmpl_request_list) const *rql)

Detailed Description

fr_pair_t template functions

Id

b8c6088f9d9f4341e692cee4b322c16ccbb5f59f

Copyright

2014-2020 The FreeRADIUS server project

Definition in file tmpl_tokenize.c.

Macro Definition Documentation

_TMPL_PRIVATE

#define _TMPL_PRIVATE   1

Definition at line 29 of file tmpl_tokenize.c.

DEFAULT_RULES

#define DEFAULT_RULES   tmpl_rules_t const default_rules = { .attr = { .list_def = request_attr_request }}

Default parser rules.

Because this is getting to be a ridiculous number of parsing rules to pass in via arguments.

Defaults are used if a NULL rules pointer is passed to the parsing function.

Definition at line 106 of file tmpl_tokenize.c.

RESOLVED_SET

#define RESOLVED_SET

(

_flags

)

(*(_flags) = (*(_flags) & ~TMPL_FLAG_UNRESOLVED))

Definition at line 172 of file tmpl_tokenize.c.

return_P

#define return_P

(

_x

)

fr_strerror_const(_x);goto return_p

Definition at line 5328 of file tmpl_tokenize.c.

TMPL_REQUEST_REF_DEF

#define TMPL_REQUEST_REF_DEF	(		_name,
			_ref
	)

Value:

static tmpl_request_t _name ## _entry = { \
        .entry = { \
                .entry = { \
                        .next = &_name.head.entry, \
                        .prev = &_name.head.entry \
                } \
        }, \
        .request = _ref \
}; \
FR_DLIST_HEAD(tmpl_request_list) _name = { \
        .head = { \
                .offset = offsetof(tmpl_request_t, entry), \
                .entry = { \
                        .next = &_name ## _entry.entry.entry, \
                        .prev = &_name ## _entry.entry.entry, \
                }, \
                .num_elements = 1, \
        } \
}

Define a global variable for specifying a default request reference.

Parameters

[in]	_name	what the global variable should be called.
[in]	_ref	one of the values of tmpl_request_ref_t REQUEST_CURRENT REQUEST_OUTER, REQUEST_PARENT, REQUEST_UNKNOWN

Definition at line 60 of file tmpl_tokenize.c.

UNRESOLVED_SET

#define UNRESOLVED_SET

(

_flags

)

(*(_flags) = (*(_flags) | TMPL_FLAG_UNRESOLVED))

Definition at line 171 of file tmpl_tokenize.c.

Function Documentation

attr_to_raw()

static void attr_to_raw ( tmpl_t *  vpt, tmpl_attr_t *  ref  )

static

Definition at line 4370 of file tmpl_tokenize.c.

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tmpl_afrom_attr_str()

ssize_t tmpl_afrom_attr_str	(	TALLOC_CTX *	ctx,
		tmpl_attr_error_t *	err,
		tmpl_t **	out,
		char const *	name,
		tmpl_rules_t const *	t_rules
	)

Parse a string into a TMPL_TYPE_ATTR_* type tmpl_t.

Parameters

[in,out]	ctx	to allocate tmpl_t in.
[out]	err	May be NULL. Provides the exact error that the parser hit when processing the attribute ref.
[out]	out	Where to write pointer to new tmpl_t.
[in]	name	of attribute including tmpl_request_ref_t and fr_pair_list_t qualifiers.
[in]	t_rules	Rules which control parsing. See tmpl_afrom_attr_substr() for details.

Note

Unlike tmpl_afrom_attr_substr this function will error out if the entire name string isn't parsed.

Definition at line 2475 of file tmpl_tokenize.c.

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tmpl_afrom_attr_substr()

ssize_t tmpl_afrom_attr_substr	(	TALLOC_CTX *	ctx,
		tmpl_attr_error_t *	err,
		tmpl_t **	out,
		fr_sbuff_t *	name,
		fr_sbuff_parse_rules_t const *	p_rules,
		tmpl_rules_t const *	t_rules
	)

Parse a string into a TMPL_TYPE_ATTR_* type tmpl_t.

Parameters

[in,out]	ctx	to allocate tmpl_t in.
[out]	err	May be NULL. Provides the exact error that the parser hit when processing the attribute ref.
[out]	out	Where to write pointer to new tmpl_t.
[in]	name	of attribute including tmpl_request_ref_t and fr_pair_list_t qualifiers.
[in]	p_rules	Formatting rules used to check for trailing garbage.
[in]	t_rules	Rules which control parsing: dict_def The default dictionary to use if attributes are unqualified. request_def The default request_t to set if no tmpl_request_ref_t qualifiers are found in name. list_def The default list to set if no fr_pair_list_t qualifiers are found in the name. allow_unknown If true attributes in the format accepted by fr_dict_attr_unknown_afrom_oid_substr will be allowed, even if they're not in the main dictionaries. If an unknown attribute is found a TMPL_TYPE_ATTR tmpl_t will be produced. If tmpl_afrom_attr_substr is being called on startup, the tmpl_t may be passed to tmpl_attr_unknown_add to add the unknown attribute to the main dictionary. If the unknown attribute is not added to the main dictionary the tmpl_t cannot be used to search for a fr_pair_t in a request_t. allow_unresolved If true, we don't generate a parse error on unknown attributes. If an unknown attribute is found a TMPL_TYPE_ATTR_UNRESOLVED tmpl_t will be produced. allow_foreign If true, allow attribute names to be qualified with a protocol outside of the passed dict_def. disallow_filters

See also

REMARKER to produce pretty error markers from the return value.

Returns

• <= 0 on error (offset as negative integer)
• > 0 on success (number of bytes parsed).

Definition at line 2211 of file tmpl_tokenize.c.

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tmpl_afrom_bool_substr()

static fr_slen_t tmpl_afrom_bool_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Parse a truth value.

Parameters

[in]	ctx	to allocate tmpl to.
[out]	out	where to write tmpl.
[in]	in	sbuff to parse.
[in]	p_rules	formatting rules.

Returns

• < 0 sbuff does not contain a boolean value.
• > 0 how many bytes were parsed.

Definition at line 2564 of file tmpl_tokenize.c.

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tmpl_afrom_enum()

static ssize_t tmpl_afrom_enum ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules, tmpl_rules_t const *  t_rules  )

static

Definition at line 3063 of file tmpl_tokenize.c.

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tmpl_afrom_ether_substr()

static ssize_t tmpl_afrom_ether_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Try and parse signed or unsigned integers.

Parameters

[in]	ctx	to allocate tmpl to.
[out]	out	where to write tmpl.
[in]	in	sbuff to parse.
[in]	p_rules	formatting rules.

Returns

• < 0 sbuff does not contain a mac address.
• > 0 how many bytes were parsed.

Definition at line 2847 of file tmpl_tokenize.c.

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tmpl_afrom_float_substr()

static ssize_t tmpl_afrom_float_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Definition at line 2990 of file tmpl_tokenize.c.

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tmpl_afrom_integer_substr()

static fr_slen_t tmpl_afrom_integer_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Try and parse signed or unsigned integers.

Parameters

[in]	ctx	to allocate tmpl to.
[out]	out	where to write tmpl.
[in]	in	sbuff to parse.
[in]	p_rules	formatting rules.

Returns

• < 0 sbuff does not contain an integer.
• > 0 how many bytes were parsed.

Definition at line 2914 of file tmpl_tokenize.c.

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tmpl_afrom_ipv4_substr()

static fr_slen_t tmpl_afrom_ipv4_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Parse bareword as an IPv4 address or prefix.

Parameters

[in]	ctx	to allocate tmpl to.
[out]	out	where to write tmpl.
[in]	in	sbuff to parse.
[in]	p_rules	formatting rules.

Returns

• < 0 sbuff does not contain an IPv4 address or prefix.
• > 0 how many bytes were parsed.

Definition at line 2661 of file tmpl_tokenize.c.

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tmpl_afrom_ipv6_substr()

static fr_slen_t tmpl_afrom_ipv6_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Parse bareword as an IPv6 address or prefix.

Parameters

[in]	ctx	to allocate tmpl to.
[out]	out	where to write tmpl.
[in]	in	sbuff to parse.
[in]	p_rules	formatting rules.

Returns

• < 0 sbuff does not contain an IPv4 address or prefix.
• > 0 how many bytes were parsed.

Definition at line 2729 of file tmpl_tokenize.c.

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tmpl_afrom_octets_substr()

static fr_slen_t tmpl_afrom_octets_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Parse bareword as an octet string.

Parameters

[in]	ctx	to allocate tmpl to.
[out]	out	where to write tmpl.
[in]	in	sbuff to parse.
[in]	p_rules	formatting rules.

Returns

• < 0 negative offset where parse error occurred.
• 0 sbuff does not contain a hex string.
• > 0 how many bytes were parsed.

Definition at line 2602 of file tmpl_tokenize.c.

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tmpl_afrom_substr()

fr_slen_t tmpl_afrom_substr	(	TALLOC_CTX *	ctx,
		tmpl_t **	out,
		fr_sbuff_t *	in,
		fr_token_t	quote,
		fr_sbuff_parse_rules_t const *	p_rules,
		tmpl_rules_t const *	t_rules
	)

Convert an arbitrary string into a tmpl_t.

Note

Unlike tmpl_afrom_attr_str return code 0 doesn't necessarily indicate failure, may just mean a 0 length string was parsed. Check to see if the function emitted a tmpl_t in *out.

xlats and regexes are left uncompiled. This is to support the two pass parsing done by the modcall code. Compilation on pass1 of that code could fail, as attributes or xlat functions registered by modules may not be available (yet).

For details of attribute parsing see tmpl_afrom_attr_substr.

Parameters

[in,out]	ctx	To allocate tmpl_t in.
[out]	out	Where to write the pointer to the new tmpl_t.
[in]	in	String to parse.
[in]	quote	Quoting around the tmpl. Determines what we attempt to parse the string as.
[in]	p_rules	Formatting rules for the tmpl.
[in]	t_rules	Validation rules for attribute references.

Returns

• < 0 on error (offset as negative integer)
• >= 0 on success (number of bytes parsed).

See also

REMARKER to produce pretty error markers from the return value.

tmpl_afrom_attr_substr

Definition at line 3177 of file tmpl_tokenize.c.

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tmpl_afrom_time_delta()

static ssize_t tmpl_afrom_time_delta ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

static

Definition at line 3018 of file tmpl_tokenize.c.

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tmpl_afrom_value_box()

int tmpl_afrom_value_box	(	TALLOC_CTX *	ctx,
		tmpl_t **	out,
		fr_value_box_t *	data,
		bool	steal
	)

Create a tmpl_t from a fr_value_box_t.

Parameters

[in,out]	ctx	to allocate tmpl_t in.
[out]	out	Where to write pointer to new tmpl_t.
[in]	data	to convert.
[in]	steal	If true, any buffers are moved to the new ctx instead of being duplicated.

Returns

• 0 on success.
• -1 on failure.

Definition at line 1006 of file tmpl_tokenize.c.

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tmpl_afrom_value_substr()

static fr_slen_t tmpl_afrom_value_substr ( TALLOC_CTX *  ctx, tmpl_t **  out, fr_sbuff_t *  in, fr_token_t  quote, tmpl_rules_t const *  t_rules, bool  allow_enum, fr_sbuff_parse_rules_t const *  p_rules  )

static

Create TMPL_TYPE_DATA from a string.

Parameters

[in]	ctx	to allocate tmpl to.
[out]	out	where to write tmpl.
[in]	in	sbuff to parse.
[in]	quote	surrounding the operand to parse.
[in]	t_rules	specifying the cast and any enumeration values.
[in]	allow_enum	Whether parsing the value as an enum should be allowed.
[in]	p_rules	formatting rules.

Returns

• <0 on error
• >=0 on success.

Definition at line 2514 of file tmpl_tokenize.c.

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tmpl_alloc()

tmpl_t* tmpl_alloc	(	TALLOC_CTX *	ctx,
		tmpl_type_t	type,
		fr_token_t	quote,
		char const *	name,
		ssize_t	len
	)

Create a new heap allocated tmpl_t.

Parameters

[in,out]	ctx	to allocate in.
[in]	type	to set in the tmpl_t.
[in]	name	of the tmpl_t (will be copied to a new talloc buffer parented by the tmpl_t).
[in]	len	The length of the buffer (or a substring of the buffer) pointed to by name. If < 0 strlen will be used to determine the length.
[in]	quote	The type of quoting around the template name.

Returns

the newly allocated tmpl_t.

Definition at line 949 of file tmpl_tokenize.c.

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tmpl_alloc_null()

static tmpl_t* tmpl_alloc_null ( TALLOC_CTX *  ctx )

inlinestatic

Create a new heap allocated tmpl_t.

Must be later initialised with a tmpl_init_* function.

This function is provided to allow tmpls to be pre-allocated for talloc purposes before their name is known.

Definition at line 923 of file tmpl_tokenize.c.

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tmpl_async_required()

bool tmpl_async_required

(

tmpl_t const *

vpt

)

Return whether or not async is required for this tmpl.

If the tmpl is needs_async, then it is async
If the tmpl is not needs_async, then it will not yield

If the tmpl yields, then async is required.

Definition at line 5751 of file tmpl_tokenize.c.

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tmpl_attr_add()

static tmpl_attr_t* tmpl_attr_add ( tmpl_t *  vpt, tmpl_attr_type_t  type  )

static

Allocate a new attribute reference and add it to the end of the attribute reference list.

Definition at line 971 of file tmpl_tokenize.c.

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tmpl_attr_afrom_attr_substr()

static int tmpl_attr_afrom_attr_substr ( TALLOC_CTX *  ctx, tmpl_attr_error_t *  err, tmpl_t *  vpt, fr_dict_attr_t const *  parent, fr_dict_attr_t const *  namespace, fr_sbuff_t *  name, fr_sbuff_parse_rules_t const *  p_rules, tmpl_attr_rules_t const *  at_rules, unsigned int  depth  )

inlinestatic

Parse an attribute reference, either an OID or attribute name.

Note

Do not call directly.

Parameters

[in]	ctx	to allocate new attribute reference in.
[out]	err	Parse error.
[in,out]	vpt	to append this reference to.
[in]	parent	Parent where the attribute will be placed (group, struct, tlv, etc).
[in]	namespace	Where the child attribute will be parsed from (dict root, struct member, TLV child, etc)
[in]	name	to parse.
[in]	p_rules	Formatting rules used to check for trailing garbage.
[in]	at_rules	which places constraints on attribute reference parsing. Rules interpreted by this function is: allow_unknown - If false unknown OID components result in a parse error. allow_unresolved - If false unknown attribute names result in a parse error. allow_foreign - If an attribute resolves in a dictionary that does not match the parent (exception being FR_TYPE_GROUP) then that results in a parse error.
[in]	depth	How deep we are. Used to check for maximum nesting level.

Returns

• <0 on error.
• 0 on success.

Definition at line 1762 of file tmpl_tokenize.c.

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tmpl_attr_afrom_list()

int tmpl_attr_afrom_list	(	TALLOC_CTX *	ctx,
		tmpl_t **	out,
		tmpl_t const *	list,
		fr_dict_attr_t const *	da
	)

Create a new tmpl from a list tmpl and a da.

Definition at line 1239 of file tmpl_tokenize.c.

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tmpl_attr_copy()

int tmpl_attr_copy	(	tmpl_t *	dst,
		tmpl_t const *	src
	)

Copy a list of attribute and request references from one tmpl to another.

Definition at line 1036 of file tmpl_tokenize.c.

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tmpl_attr_debug()

void tmpl_attr_debug

(

tmpl_t const *

vpt

)

Definition at line 273 of file tmpl_tokenize.c.

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tmpl_attr_insert()

static void tmpl_attr_insert ( tmpl_t *  vpt, tmpl_attr_t *  ar  )

inlinestatic

Insert an attribute reference into a tmpl.

Not all attribute references can be used to create new attributes, for example those accessing instance > 0 or those that resolve to special indexes.

We mark up these references and their parents as resolve only meaning that if any code needs to use a reference chain to build out a pair tree, it bails out early.

Parameters

[in]	vpt	containing the reference list.
[in]	ar	to insert and check.

Definition at line 1303 of file tmpl_tokenize.c.

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tmpl_attr_list_from_substr()

fr_slen_t tmpl_attr_list_from_substr	(	fr_dict_attr_t const **	da_p,
		fr_sbuff_t *	in
	)

Parse one a single list reference.

Parameters

[out]	da_p	attribute representing a list.
[in]	in	Sbuff to read request references from.

Returns

• > 0 the number of bytes parsed.
• 0 no list qualifier found.

Definition at line 401 of file tmpl_tokenize.c.

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tmpl_attr_parse_filter()

static fr_slen_t tmpl_attr_parse_filter ( tmpl_attr_error_t *  err, tmpl_attr_t *  ar, fr_sbuff_t *  name, tmpl_attr_rules_t const *  at_rules  )

static

Parse array subscript and in future other filters.

Parameters

[out]	err	Parse error code.
[in]	ar	to populate filter for.
[in]	name	containing more attribute ref data.
[in]	at_rules	see tmpl_attr_afrom_attr_substr.

Returns

• >0 if a filter was parsed.
• 0 if no filter was available.
• <0 on filter parse error.

Definition at line 1333 of file tmpl_tokenize.c.

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tmpl_attr_print()

fr_slen_t tmpl_attr_print	(	fr_sbuff_t *	out,
		tmpl_t const *	vpt,
		tmpl_attr_prefix_t	ar_prefix
	)

Print an attribute or list tmpl_t to a string.

This function is the direct counterpart to tmpl_afrom_attr_substr.

Parameters

[in]	out	Where to write the presentation format tmpl_t string.
[in]	vpt	to print.
[in]	ar_prefix	Whether to print the '&' at the beginning of attribute references. TMPL_ATTR_REF_PREFIX_YES - always print. TMPL_ATTR_REF_PREFIX_NO - never print. TMPL_ATTR_REF_PREFIX_AUTO - print if the original tmpl was prefixed.

Returns

• >0 the number of bytes written to the out buffer.
• 0 invalid argument.
• <0 the number of bytes we would have needed to complete the print.

Definition at line 4625 of file tmpl_tokenize.c.

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tmpl_attr_ref_afrom_unresolved_substr()

static fr_slen_t tmpl_attr_ref_afrom_unresolved_substr ( TALLOC_CTX *  ctx, tmpl_attr_error_t *  err, tmpl_t *  vpt, fr_dict_attr_t const *  parent, fr_dict_attr_t const *  namespace, fr_sbuff_t *  name, tmpl_attr_rules_t const *  at_rules  )

inlinestatic

Parse an unresolved attribute, i.e.

one which can't be found in the current dictionary

This function calls itself recursively to process additional OID components once we've failed to resolve one component.

Note

Do not call directly.

Parameters

[in]	ctx	to allocate new attribute reference in.
[out]	err	Parse error.
[in,out]	vpt	to append this reference to.
[in]	parent	Last known parent.
[in]	namespace	in which the attribute will be resolved.
[in]	name	to parse.
[in]	at_rules	see tmpl_attr_afrom_attr_substr.

Returns

• <0 on error.
• 0 on success.

Definition at line 1641 of file tmpl_tokenize.c.

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tmpl_attr_ref_debug()

void tmpl_attr_ref_debug	(	const tmpl_attr_t *	ar,
		int	i
	)

Definition at line 198 of file tmpl_tokenize.c.

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tmpl_attr_ref_fixup()

static void tmpl_attr_ref_fixup ( TALLOC_CTX *  ctx, tmpl_t *  vpt, fr_dict_attr_t const *  da, fr_dict_attr_t const *  parent  )

static

Definition at line 1717 of file tmpl_tokenize.c.

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tmpl_attr_ref_from_unspecified_substr()

static fr_slen_t tmpl_attr_ref_from_unspecified_substr ( tmpl_attr_t *  ar, tmpl_attr_error_t *  err, tmpl_t *  vpt, fr_sbuff_t *  name, tmpl_attr_rules_t const *  at_rules  )

inlinestatic

Definition at line 1588 of file tmpl_tokenize.c.

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tmpl_attr_ref_list_debug()

void tmpl_attr_ref_list_debug

(

FR_DLIST_HEAD(tmpl_attr_list) const *

ar_head

)

Definition at line 258 of file tmpl_tokenize.c.

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tmpl_attr_resolve()

static int tmpl_attr_resolve ( tmpl_t *  vpt, tmpl_res_rules_t const *  tr_rules  )

inlinestatic

Resolve an unresolved attribute.

Multi-pass parsing fixups for attribute references.

Parameters

[in]	vpt	to resolve.
[in]	tr_rules	Combined with the original parse rules for additional resolution passes.

Returns

• 0 if all references were resolved.
• -1 if there are unknown attributes which need adding to the global dictionary first.
• -2 if there are attributes we couldn't resolve.

Definition at line 3969 of file tmpl_tokenize.c.

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tmpl_attr_rewrite_leaf_num()

void tmpl_attr_rewrite_leaf_num	(	tmpl_t *	vpt,
		int16_t	to
	)

Rewrite the leaf's instance number.

This function is only called from the compiler, for "update" and "foreach" keywords. In those cases, the user historically did "&foo-bar", but really meant "&foo-bar[*]". We silently update that for "update" sections, and complain about it in "foreach" sections.

As the server now supports multiple types of leaf references, we do the rewrite only from "none" (no filter), OR where it's a numerical index, AND the index hasn't been specified.

Definition at line 1187 of file tmpl_tokenize.c.

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tmpl_attr_rules_debug()

static void tmpl_attr_rules_debug ( tmpl_attr_rules_t const *  at_rules )

static

Definition at line 5829 of file tmpl_tokenize.c.

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tmpl_attr_set_da()

int tmpl_attr_set_da	(	tmpl_t *	vpt,
		fr_dict_attr_t const *	da
	)

Replace the current attribute reference.

Definition at line 1087 of file tmpl_tokenize.c.

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tmpl_attr_set_leaf_da()

int tmpl_attr_set_leaf_da	(	tmpl_t *	vpt,
		fr_dict_attr_t const *	da
	)

Replace the leaf attribute only.

Definition at line 1120 of file tmpl_tokenize.c.

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tmpl_attr_set_list()

void tmpl_attr_set_list	(	tmpl_t *	vpt,
		fr_dict_attr_t const *	list
	)

Definition at line 1228 of file tmpl_tokenize.c.

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tmpl_attr_set_request_ref()

void tmpl_attr_set_request_ref	(	tmpl_t *	vpt,
		FR_DLIST_HEAD(tmpl_request_list) const *	request_def
	)

Set the request for an attribute ref.

Definition at line 1214 of file tmpl_tokenize.c.

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tmpl_attr_tail_unresolved_add()

int tmpl_attr_tail_unresolved_add	(	fr_dict_t *	dict_def,
		tmpl_t *	vpt,
		fr_type_t	type,
		fr_dict_attr_flags_t const *	flags
	)

Add an unresolved fr_dict_attr_t specified by a tmpl_t to the main dictionary.

Note

fr_dict_attr_add will not return an error if the attribute already exists meaning that multiple tmpl_t specifying the same attribute can be passed to this function to be fixed up, so long as the type and flags are identical.

Parameters

[in]	dict_def	Default dictionary to use if none is specified by the tmpl_attr_tail_unresolved.
[in]	vpt	specifying unresolved attribute to add. tmpl_attr_tail_da pointer will be updated to point to the fr_dict_attr_t inserted into the dictionary. Lists and requests will be preserved.
[in]	type	to define unresolved attribute as.
[in]	flags	to define unresolved attribute with.

Returns

• 1 noop (did nothing) - Not possible to convert tmpl.
• 0 on success.
• -1 on failure.

Definition at line 4519 of file tmpl_tokenize.c.

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tmpl_attr_to_raw()

void tmpl_attr_to_raw

(

tmpl_t *

vpt

)

Convert the leaf attribute of a tmpl to a unknown/raw type.

Definition at line 4403 of file tmpl_tokenize.c.

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tmpl_attr_to_xlat()

int tmpl_attr_to_xlat	(	TALLOC_CTX *	ctx,
		tmpl_t **	vpt_p
	)

Convert an attribute reference to an xlat expansion.

This is where a user attempts to use an attribute reference which is actually a virtual attribute.

Parameters

[in]	ctx	to convert new tmpl in.
[in,out]	vpt_p	pointer to tmpl_t of TMPL_TYPE_ATTR | TMPL_TYPE_ATTR_UNPARSED.

Definition at line 4343 of file tmpl_tokenize.c.

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tmpl_attr_unknown_add()

int tmpl_attr_unknown_add

(

tmpl_t *

vpt

)

Add an unknown fr_dict_attr_t specified by a tmpl_t to the main dictionary.

Parameters

vpt	to add. tmpl_attr_tail_da pointer will be updated to point to the fr_dict_attr_t inserted into the dictionary.

Returns

• 1 noop (did nothing) - Not possible to convert tmpl.
• 0 on success.
• -1 on failure.

Definition at line 4417 of file tmpl_tokenize.c.

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tmpl_cast_from_substr()

ssize_t tmpl_cast_from_substr	(	tmpl_rules_t *	rules,
		fr_sbuff_t *	in
	)

Parse a cast specifier.

Note that casts are

(foo)

and NOT

( foo )

Not for any particular reason, but to emphasize a bit that they're not mathematical expressions.

Parameters

[out]	rules	to set the cast type in.
[in]	in	String containing the cast marker.

Returns

• 0 no cast specifier found.
• >0 the number of bytes parsed.
• <0 offset of parse error.

Definition at line 3622 of file tmpl_tokenize.c.

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tmpl_cast_in_place()

int tmpl_cast_in_place	(	tmpl_t *	vpt,
		fr_type_t	type,
		fr_dict_attr_t const *	enumv
	)

Convert tmpl_t of type TMPL_TYPE_DATA_UNRESOLVED or TMPL_TYPE_DATA to TMPL_TYPE_DATA of type specified.

Note

Conversion is done in place.

Irrespective of whether the tmpl_t was TMPL_TYPE_DATA_UNRESOLVED or TMPL_TYPE_DATA, on successful cast it will be TMPL_TYPE_DATA.

Parameters

[in,out]	vpt	The template to modify. Must be of type TMPL_TYPE_DATA_UNRESOLVED or TMPL_TYPE_DATA.
[in]	type	to cast to.
[in]	enumv	Enumerated dictionary values associated with a fr_dict_attr_t.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3855 of file tmpl_tokenize.c.

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tmpl_cast_quote()

static fr_token_t tmpl_cast_quote ( fr_token_t  existing_quote, fr_type_t  type, fr_dict_attr_t const *  enumv, char const *  unescaped, size_t  unescaped_len  )

inlinestatic

Determine the correct quoting after a cast.

Parameters

[in]	existing_quote	Exiting quotation type.
[in]	type	Cast type.
[in]	enumv	Enumeration values.
[in]	unescaped	The unescaped value of an enumeration.
[in]	unescaped_len	Length of unescaped.

Definition at line 3817 of file tmpl_tokenize.c.

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tmpl_cast_set()

int tmpl_cast_set	(	tmpl_t *	vpt,
		fr_type_t	dst_type
	)

Set a cast for a tmpl.

Parameters

[in,out]	vpt	to set cast for.
[in]	dst_type	to set.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3668 of file tmpl_tokenize.c.

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tmpl_copy()

tmpl_t* tmpl_copy	(	TALLOC_CTX *	ctx,
		tmpl_t const *	in
	)

Copy a tmpl.

Fully duplicates the contents of a tmpl including any nested attribute references.

Parameters

[in]	ctx	to perform allocations under.
[in]	in	tmpl to duplicate.

Returns

• NULL on error.
• A new tmpl on success.

Definition at line 3541 of file tmpl_tokenize.c.

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tmpl_debug()

void tmpl_debug

(

tmpl_t const *

vpt

)

Definition at line 312 of file tmpl_tokenize.c.

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tmpl_init()

tmpl_t* tmpl_init	(	tmpl_t *	vpt,
		tmpl_type_t	type,
		fr_token_t	quote,
		char const *	name,
		ssize_t	len,
		tmpl_rules_t const *	t_rules
	)

Initialise a tmpl using a literal string to create the name.

Parameters

[in]	vpt	to initialise.
[in]	type	of tmpl to initialise.
[in]	quote	Original quoting around the name.
[in]	name	to set for the tmpl.
[in]	len	Name length. If < 0 strlen will be used to determine the name.
[in]	t_rules	used during parsing.

Returns

A pointer to the newly initialised tmpl.

Definition at line 905 of file tmpl_tokenize.c.

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tmpl_init_printf()

tmpl_t* tmpl_init_printf	(	tmpl_t *	vpt,
		tmpl_type_t	type,
		fr_token_t	quote,
		char const *	fmt,
			...
	)

Initialise a tmpl using a format string to create the name.

Parameters

[in]	vpt	to initialise.
[in]	type	of tmpl to initialise.
[in]	quote	Original quoting around the name.
[in]	fmt	string.
[in]	...	format arguments.

Returns

A pointer to the newly initialised tmpl.

Definition at line 853 of file tmpl_tokenize.c.

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tmpl_init_shallow()

tmpl_t* tmpl_init_shallow	(	tmpl_t *	vpt,
		tmpl_type_t	type,
		fr_token_t	quote,
		char const *	name,
		ssize_t	len,
		tmpl_rules_t const *	t_rules
	)

Initialise a tmpl without copying the input name string.

Note

Name is not talloc_strdup'd or memcpy'd so must be available, and must not change for the lifetime of the tmpl_t.

Parameters

[out]	vpt	to initialise.
[in]	type	to set in the tmpl_t.
[in]	quote	The type of quoting around the template name.
[in]	name	of the tmpl_t.
[in]	len	The length of the buffer (or a substring of the buffer) pointed to by name. If < 0 strlen will be used to determine the length.
[in]	t_rules	used during parsing.

Returns

a pointer to the initialised tmpl_t. The same value as vpt.

Definition at line 883 of file tmpl_tokenize.c.

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tmpl_preparse()

ssize_t tmpl_preparse	(	char const **	out,
		size_t *	outlen,
		char const *	in,
		size_t	inlen,
		fr_token_t *	type
	)

Preparse a string in preparation for passing it to tmpl_afrom_substr()

Note that the input string is not modified, which means that the tmpl_afrom_substr() function MUST un-escape it.

The caller should pass 'out' and 'outlen' to tmpl_afrom_substr() as 'in' and 'inlen'. The caller should also pass 'type'. The caller should also pass do_unescape=true.

Parameters

[out]	out	start of the string to parse
[out]	outlen	length of the string to parse
	in	where we start looking for the string
	inlen	length of the input string
[out]	type	token type of the string.

Returns

• > 0, amount of parsed string to skip, to get to the next token
• <=0, -offset in 'start' where the parse error was located

Definition at line 5348 of file tmpl_tokenize.c.

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tmpl_print()

fr_slen_t tmpl_print	(	fr_sbuff_t *	out,
		tmpl_t const *	vpt,
		tmpl_attr_prefix_t	ar_prefix,
		fr_sbuff_escape_rules_t const *	e_rules
	)

Print a tmpl_t to a string.

This function should primarily be used for regenerating vpt->name when the contents of the tmpl_t is changed programmatically, or when the tmpl_t is being serialized in some non-standard way, i.e. as a value for a field in a database.

This function is the direct counterpart to tmpl_afrom_substr.

Note

Does not print flags for regular expressions, as the quoting char is needed to separate the elements of the expression. Call regex_flags_print to write the flags values to the output buffer.

Parameters

[out]	out	Where to write the presentation format tmpl_t string.
[in]	vpt	to print.
[in]	ar_prefix	Whether to print the '&' at the beginning of attribute references. TMPL_ATTR_REF_PREFIX_YES - always print. TMPL_ATTR_REF_PREFIX_NO - never print. TMPL_ATTR_REF_PREFIX_AUTO - print if the original tmpl was prefixed.
[in]	e_rules	Escaping rules used to print strings.

Returns

• >0 the number of bytes written to the out buffer.
• 0 invalid argument.
• <0 the number of bytes we would have needed to complete the print.

Definition at line 4833 of file tmpl_tokenize.c.

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tmpl_print_quoted()

fr_slen_t tmpl_print_quoted	(	fr_sbuff_t *	out,
		tmpl_t const *	vpt,
		tmpl_attr_prefix_t	ar_prefix
	)

Print a tmpl_t to a string with quotes.

This function should be used when the tmpl is embedded in some other construct in the server's configuration.

It adds standard quoting around tmpl's used as operands in expressions and applies the correct escaping rules.

Parameters

[out]	out	Where to write the presentation format tmpl_t string.
[in]	vpt	to print.
[in]	ar_prefix	Whether to print the '&' at the beginning of attribute references. TMPL_ATTR_REF_PREFIX_YES - always print. TMPL_ATTR_REF_PREFIX_NO - never print. TMPL_ATTR_REF_PREFIX_AUTO - print if the original tmpl was prefixed.

Returns

• >0 the number of bytes written to the out buffer.
• 0 invalid argument.
• <0 the number of bytes we would have needed to complete the print.

Definition at line 4915 of file tmpl_tokenize.c.

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TMPL_REQUEST_REF_DEF() [1/3]

TMPL_REQUEST_REF_DEF	(	tmpl_request_def_current	,
		REQUEST_CURRENT
	)

Use the current request as the default.

Used as .attr.request_def = &tmpl_request_def_current;

TMPL_REQUEST_REF_DEF() [2/3]

TMPL_REQUEST_REF_DEF	(	tmpl_request_def_outer	,
		REQUEST_OUTER
	)

Use the outer request as the default.

Used as .attr.request_def = &tmpl_request_def_outer;

TMPL_REQUEST_REF_DEF() [3/3]

TMPL_REQUEST_REF_DEF	(	tmpl_request_def_parent	,
		REQUEST_PARENT
	)

Use the parent request as the default.

Used as .attr.request_def = &tmpl_request_def_parent;

tmpl_request_ref_list_acopy()

static void tmpl_request_ref_list_acopy ( TALLOC_CTX *  ctx, FR_DLIST_HEAD(tmpl_request_list) **  out, FR_DLIST_HEAD(tmpl_request_list) const *  in  )

inlinestatic

Allocate a new request reference list and copy request references into it.

Definition at line 449 of file tmpl_tokenize.c.

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tmpl_request_ref_list_afrom_substr()

fr_slen_t tmpl_request_ref_list_afrom_substr	(	TALLOC_CTX *	ctx,
		tmpl_attr_error_t *	err,
		FR_DLIST_HEAD(tmpl_request_list) **	out,
		fr_sbuff_t *	in
	)

Parse one or more request references, allocing a new list and adding the references to it.

This can be used to create request ref lists for rules and for tmpls.

Parameters

[in]	ctx	to allocate request refs in.
[out]	err	If !NULL where to write the parsing error.
[out]	out	The new list.
[in]	in	Sbuff to read request references from.

Returns

• >= 0 the number of bytes parsed.
• <0 negative offset for where the error occurred

Definition at line 694 of file tmpl_tokenize.c.

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tmpl_request_ref_list_cmp()

int8_t tmpl_request_ref_list_cmp	(	FR_DLIST_HEAD(tmpl_request_list) const *	a,
		FR_DLIST_HEAD(tmpl_request_list) const *	b
	)

Compare a list of request qualifiers.

Parameters

[in]	a	first list. If NULL tmpl_request_def_current will be used.
[in]	b	second list. If NULL tmpl_request_def_current will be used.

Returns

• >0 a > b
• 0 a == b
• <0 a < b

Definition at line 485 of file tmpl_tokenize.c.

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tmpl_request_ref_list_copy()

static void tmpl_request_ref_list_copy ( TALLOC_CTX *  ctx, FR_DLIST_HEAD(tmpl_request_list) *  out, FR_DLIST_HEAD(tmpl_request_list) const *  in  )

inlinestatic

Allocate a new request reference and add it to the end of the attribute reference list.

Definition at line 426 of file tmpl_tokenize.c.

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tmpl_request_ref_list_debug()

void tmpl_request_ref_list_debug

(

FR_DLIST_HEAD(tmpl_request_list) const *

rql

)

Dump a request list to stderr.

Definition at line 465 of file tmpl_tokenize.c.

tmpl_request_ref_list_from_substr()

static fr_slen_t tmpl_request_ref_list_from_substr ( TALLOC_CTX *  ctx, tmpl_attr_error_t *  err, FR_DLIST_HEAD(tmpl_request_list) *  out, fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules, tmpl_rules_t const *  t_rules, fr_dict_attr_t const **  namespace  )

static

Parse one or more request references, writing the list to out.

Parameters

[in]	ctx	to allocate request refs in.
[out]	err	If !NULL where to write the parsing error.
[in]	out	The list to write to.
[in]	in	Sbuff to read request references from.
[in]	p_rules	Parse rules.
[in]	t_rules	Default list and other rules.
[out]	namespace	the namespace to use

Returns

• >= 0 the number of bytes parsed.
• <0 negative offset for where the error occurred

Definition at line 527 of file tmpl_tokenize.c.

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tmpl_request_ref_list_print()

fr_slen_t tmpl_request_ref_list_print	(	fr_sbuff_t *	out,
		FR_DLIST_HEAD(tmpl_request_list) const *	rql
	)

Definition at line 4591 of file tmpl_tokenize.c.

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tmpl_resolve()

int tmpl_resolve	(	tmpl_t *	vpt,
		tmpl_res_rules_t const *	tr_rules
	)

Attempt to resolve functions and attributes in xlats and attribute references.

Note

If resolution is successful, the rules->attr.dict_def field will be modified to reflect the dictionary resolution was successful in.

Parameters

[in,out]	vpt	to resolve. Should be of type TMPL_TYPE_XLAT_UNRESOLVED or TMPL_TYPE_ATTR_UNRESOLVED. All other types will be noops.
[in]	tr_rules	Combined with the original parse rules for additional resolution passes.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4163 of file tmpl_tokenize.c.

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tmpl_rules_child_init()

void tmpl_rules_child_init	(	TALLOC_CTX *	ctx,
		tmpl_rules_t *	out,
		tmpl_rules_t const *	parent,
		tmpl_t *	vpt
	)

Initialize a set of rules from a parent set of rules, and a parsed tmpl_t.

Definition at line 5773 of file tmpl_tokenize.c.

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tmpl_rules_debug()

void tmpl_rules_debug

(

tmpl_rules_t const *

rules

)

Definition at line 5844 of file tmpl_tokenize.c.

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tmpl_set_dict_def()

void tmpl_set_dict_def	(	tmpl_t *	vpt,
		fr_dict_t const *	dict
	)

Change the default dictionary in the tmpl's resolution rules.

Parameters

[in]	vpt	to alter.
[in]	dict	to set.

Definition at line 816 of file tmpl_tokenize.c.

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tmpl_set_escape()

void tmpl_set_escape	(	tmpl_t *	vpt,
		tmpl_escape_t const *	escape
	)

Set escape parameters for the tmpl output.

Parameters

[in]	vpt	to alter.
[in]	escape	to set.

Definition at line 826 of file tmpl_tokenize.c.

tmpl_set_name()

void tmpl_set_name	(	tmpl_t *	vpt,
		fr_token_t	quote,
		char const *	name,
		ssize_t	len
	)

Set the name on a pre-initialised tmpl.

Parameters

[in]	vpt	to set the name for.
[in]	quote	Original quoting around the name.
[in]	name	of the tmpl_t.
[in]	len	The length of the buffer (or a substring of the buffer) pointed to by name. If < 0 strlen will be used to determine the length.

Definition at line 800 of file tmpl_tokenize.c.

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tmpl_set_name_printf()

void tmpl_set_name_printf	(	tmpl_t *	vpt,
		fr_token_t	quote,
		char const *	fmt,
			...
	)

Set the name on a pre-initialised tmpl.

Parameters

[in]	vpt	to set the name for.
[in]	quote	Original quoting around the name.
[in]	fmt	string.
[in]	...	format arguments.

Definition at line 759 of file tmpl_tokenize.c.

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tmpl_set_name_shallow()

void tmpl_set_name_shallow	(	tmpl_t *	vpt,
		fr_token_t	quote,
		char const *	name,
		ssize_t	len
	)

Set the name on a pre-initialised tmpl.

Parameters

[in]	vpt	to set the name for.
[in]	quote	Original quoting around the name.
[in]	name	of the tmpl_t.
[in]	len	The length of the buffer (or a substring of the buffer) pointed to by name. If < 0 strlen will be used to determine the length.

Definition at line 783 of file tmpl_tokenize.c.

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tmpl_set_xlat()

void tmpl_set_xlat	(	tmpl_t *	vpt,
		xlat_exp_head_t *	xlat
	)

Change the default dictionary in the tmpl's resolution rules.

Parameters

[in]	vpt	to alter.
[in]	xlat	to set.

Definition at line 836 of file tmpl_tokenize.c.

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tmpl_substr_terminal_check()

static bool tmpl_substr_terminal_check ( fr_sbuff_t *  in, fr_sbuff_parse_rules_t const *  p_rules  )

inlinestatic

Verify, after skipping whitespace, that a substring ends in a terminal char, or ends without further chars.

Parameters

[in]	in	the sbuff to check.
[in]	p_rules	to use terminals from.

Returns

• true if substr is terminated correctly.
• false if subst is not terminated correctly.

Definition at line 182 of file tmpl_tokenize.c.

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tmpl_type_init()

static void tmpl_type_init ( tmpl_t *  vpt, tmpl_type_t  type  )

inlinestatic

Initialise fields inside a tmpl depending on its type.

Definition at line 727 of file tmpl_tokenize.c.

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tmpl_unresolve()

void tmpl_unresolve

(

tmpl_t *

vpt

)

Reset the tmpl, leaving only the name in place.

After calling this function, the tmpl type will revert to TMPL_TYPE_DATA_UNRESOLVED and only the name and quoting will be preserved.

Parameters

[in]

vpt

to reset.

Definition at line 4278 of file tmpl_tokenize.c.

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tmpl_xlat_resolve()

static int tmpl_xlat_resolve ( tmpl_t *  vpt, tmpl_res_rules_t const *  tr_rules  )

inlinestatic

Resolve an unresolved xlat, i.e.

one containing unresolved attribute references or xlat functions

Multi-pass parsing fixups for attribute references.

Works for base types:

• TMPL_TYPE_XLAT
• TMPL_TYPE_EXEC
• TMPL_TYPE_REGEX_XLAT

Parameters

[in]	vpt	Containing the xlat expansion to resolve.
[in]	tr_rules	Combined with the original parse rules for additional resolution passes.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4133 of file tmpl_tokenize.c.

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Variable Documentation

attr_num_table

fr_table_num_sorted_t const attr_num_table[]

static

Initial value:

= {
        { L("*"),               NUM_ALL                         },
        { L("#"),               NUM_COUNT                       },
        { L("u"),               NUM_UNSPEC                      },
        { L("n"),               NUM_LAST                        }
}

Special attribute reference indexes.

Definition at line 157 of file tmpl_tokenize.c.

attr_num_table_len

size_t attr_num_table_len = NUM_ELEMENTS(attr_num_table)

static

Definition at line 163 of file tmpl_tokenize.c.

attr_table

fr_table_num_ordered_t const attr_table[]

static

Initial value:

= {
        { L("normal"),          TMPL_ATTR_TYPE_NORMAL           },
        { L("unspecified"),     TMPL_ATTR_TYPE_UNSPEC   },
        { L("unknown"),         TMPL_ATTR_TYPE_UNKNOWN          },
        { L("unresolved"),      TMPL_ATTR_TYPE_UNRESOLVED       }
}

Attr ref types.

Definition at line 137 of file tmpl_tokenize.c.

attr_table_len

size_t attr_table_len = NUM_ELEMENTS(attr_table)

static

Definition at line 143 of file tmpl_tokenize.c.

tmpl_attr_unspec

fr_dict_attr_t const* tmpl_attr_unspec

extern

Placeholder attribute for uses of unspecified attribute references.

Definition at line 61 of file tmpl_eval.c.

tmpl_request_ref_table

fr_table_num_sorted_t const tmpl_request_ref_table[]

Initial value:

= {
        { L("current"),         REQUEST_CURRENT                 },
        { L("outer"),           REQUEST_OUTER                   },
        { L("parent"),          REQUEST_PARENT                  },
}

Map keywords to tmpl_request_ref_t values.

Definition at line 147 of file tmpl_tokenize.c.

tmpl_request_ref_table_len

size_t tmpl_request_ref_table_len = NUM_ELEMENTS(tmpl_request_ref_table)

Definition at line 152 of file tmpl_tokenize.c.

tmpl_require_enum_prefix

bool tmpl_require_enum_prefix = false

Definition at line 49 of file tmpl_tokenize.c.

tmpl_type_table

fr_table_num_ordered_t const tmpl_type_table[]

Initial value:

= {
        { L("uninitialised"),           TMPL_TYPE_UNINITIALISED         },
 
        { L("null"),                    TMPL_TYPE_NULL                  },
        { L("data"),                    TMPL_TYPE_DATA                  },
 
        { L("attr"),                    TMPL_TYPE_ATTR                  },
 
        { L("exec"),                    TMPL_TYPE_EXEC                  },
        { L("xlat"),                    TMPL_TYPE_XLAT                  },
 
        { L("regex"),                   TMPL_TYPE_REGEX                 },
        { L("regex-uncompiled"),        TMPL_TYPE_REGEX_UNCOMPILED      },
        { L("regex-xlat"),              TMPL_TYPE_REGEX_XLAT            },
 
        { L("data-unresolved"),         TMPL_TYPE_DATA_UNRESOLVED       },
        { L("attr-unresolved"),         TMPL_TYPE_ATTR_UNRESOLVED       },
        { L("exec-unresolved"),         TMPL_TYPE_EXEC_UNRESOLVED       },
        { L("xlat-unresolved"),         TMPL_TYPE_XLAT_UNRESOLVED       },
        { L("regex-unresolved"),        TMPL_TYPE_REGEX_XLAT_UNRESOLVED }
}

Map tmpl_type_t values to descriptive strings.

Definition at line 112 of file tmpl_tokenize.c.

tmpl_type_table_len

size_t tmpl_type_table_len = NUM_ELEMENTS(tmpl_type_table)

Definition at line 133 of file tmpl_tokenize.c.