value.h File Reference

Boxed value structures and functions to manipulate them. More...

#include <freeradius-devel/build.h>
#include <freeradius-devel/util/dcursor.h>
#include <freeradius-devel/missing.h>
#include <freeradius-devel/util/dbuff.h>
#include <freeradius-devel/util/debug.h>
#include <freeradius-devel/util/dict.h>
#include <freeradius-devel/util/dlist.h>
#include <freeradius-devel/util/inet.h>
#include <freeradius-devel/util/log.h>
#include <freeradius-devel/util/strerror.h>
#include <freeradius-devel/util/table.h>
#include <freeradius-devel/util/time.h>
#include <freeradius-devel/util/token.h>
#include <freeradius-devel/util/types.h>

Include dependency graph for value.h:

Go to the source code of this file.

Data Structures
union	fr_value_box_datum_t
struct	fr_value_box_datum_t.__unnamed153__
union	fr_value_box_datum_t.__unnamed153__.__unnamed155__
struct	value_box_s
	Union containing all data types supported by the server. More...

Macros
#define	_CONST   const
#define	FR_MAX_STRING_LEN   254 /* RFC2138: string 0-253 octets */
#define	fr_value_box_is_safe_for(_box, _safe_for)   (_box->safe_for == (fr_value_box_safe_for_t)_safe_for)
#define	FR_VALUE_BOX_MAGIC   RADIUSD_MAGIC_NUMBER
#define	fr_value_box_mark_safe_for(_box, _safe_for)   _fr_value_box_mark_safe_for(_box, (fr_value_box_safe_for_t)_safe_for)
#define	FR_VALUE_BOX_NET_ERROR   SSIZE_MIN
	Special value to indicate fr_value_box_from_network experienced a general error. More...
#define	FR_VALUE_BOX_NET_MAX   (FR_VALUE_BOX_NET_OOM + 1)
	Special value to ensure other encoding/decoding errors don't overlap. More...
#define	FR_VALUE_BOX_NET_OOM   (FR_VALUE_BOX_NET_ERROR + 1)
	Special value to indicate fr_value_box_from_network hit an out of memory error. More...
#define	FR_VALUE_BOX_TO_NETWORK_RETURN(_dbuff, _value)   FR_DBUFF_RETURN(fr_value_box_to_network, _dbuff, _value)
#define	VALUE_BOX_LIST_VERIFY(_x)   fr_assert(_x)
#define	VALUE_BOX_LIST_VERIFY(_x)   fr_assert(_x)
#define	VALUE_BOX_NDEBUG_INITIALISER   .file = __FILE__, .line = __LINE__, .magic = FR_VALUE_BOX_MAGIC
#define	VALUE_BOX_VERIFY(_x)   fr_assert(_x)
#define	VALUE_BOX_VERIFY(_x)   fr_assert(_x)
#define	vb_should_free(_action)   ((_action & FR_VALUE_BOX_LIST_FREE_BOX) == FR_VALUE_BOX_LIST_FREE_BOX)
#define	vb_should_free_value(_action)   ((_action & FR_VALUE_BOX_LIST_FREE_BOX_VALUE) == FR_VALUE_BOX_LIST_FREE_BOX_VALUE)
#define	vb_should_remove(_action)   ((_action & FR_VALUE_BOX_LIST_REMOVE) == FR_VALUE_BOX_LIST_REMOVE)

Typedefs
typedef struct value_box_s	fr_value_box_t

Enumerations
enum	fr_value_box_list_action_t {   FR_VALUE_BOX_LIST_NONE = 0x00 ,   FR_VALUE_BOX_LIST_REMOVE = 0x01 ,   FR_VALUE_BOX_LIST_FREE_BOX = (0x02 | FR_VALUE_BOX_LIST_REMOVE) ,   FR_VALUE_BOX_LIST_FREE_BOX_VALUE = 0x04 ,   FR_VALUE_BOX_LIST_FREE = (FR_VALUE_BOX_LIST_FREE_BOX | FR_VALUE_BOX_LIST_FREE_BOX_VALUE) }
	Actions to perform when we process a box in a list. More...

Functions
void	_fr_value_box_mark_safe_for (fr_value_box_t *box, fr_value_box_safe_for_t safe_for)
	Mark a value-box as "safe", of a particular type. More...
int	fr_value_box_cast (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_type_t dst_type, fr_dict_attr_t const *dst_enumv, fr_value_box_t const *src))
	Convert one type of fr_value_box_t to another. More...
int	fr_value_box_cast_in_place (TALLOC_CTX *ctx, fr_value_box_t *vb, fr_type_t dst_type, fr_dict_attr_t const *dst_enumv))
	Convert one type of fr_value_box_t to another in place. More...
int8_t	fr_value_box_cmp (fr_value_box_t const *a, fr_value_box_t const *b)
	Compare two values. More...
int	fr_value_box_cmp_op (fr_token_t op, fr_value_box_t const *a, fr_value_box_t const *b)
	Compare two attributes using an operator. More...
static bool	fr_value_box_contains_secret (fr_value_box_t const *box)
ssize_t	fr_value_box_from_network (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_type_t type, fr_dict_attr_t const *enumv, fr_dbuff_t *dbuff, size_t len, bool tainted))
	Decode a fr_value_box_t from serialized binary data. More...
static size_t char fr_sbuff_t size_t char quote int	fr_value_box_hton (fr_value_box_t *dst, fr_value_box_t const *src)
	Performs byte order reversal for types that need it. More...
void	fr_value_box_increment (fr_value_box_t *vb)
	Increment a boxed value. More...
int	fr_value_box_ipaddr (fr_value_box_t *dst, fr_dict_attr_t const *enumv, fr_ipaddr_t const *ipaddr, bool tainted))
	Assign a fr_value_box_t value from an fr_ipaddr_t. More...
static bool	fr_value_box_is_secret (fr_value_box_t const *box)
bool	fr_value_box_is_truthy (fr_value_box_t const *box))
	Check truthiness of values. More...
void	fr_value_box_list_mark_safe_for (fr_value_box_list_t *list, fr_value_box_safe_for_t safe_for)
	Set the escaped flag for all value boxes in a list. More...
void	fr_value_box_list_verify (char const *file, int line, fr_value_box_list_t const *list))
void	fr_value_box_mark_unsafe (fr_value_box_t *box)
	Mark a value-box as "unsafe". More...
size_t	fr_value_box_network_length (fr_value_box_t const *value)
	Get the size of the value held by the fr_value_box_t. More...
static void	fr_value_box_set_secret (fr_value_box_t *box, bool secret)
int	fr_value_box_to_key (uint8_t **out, size_t *outlen, fr_value_box_t const *value)
	Get a key from a value box. More...
ssize_t	fr_value_box_to_network (fr_dbuff_t *dbuff, fr_value_box_t const *value)
	Encode a single value box, serializing its contents in generic network format. More...
void	fr_value_box_verify (char const *file, int line, fr_value_box_t const *vb))
	Validation function to check that a fr_value_box_t is correctly initialised. More...
static size_t	fr_value_str_aunescape (TALLOC_CTX *ctx, char **out, fr_sbuff_t *in, size_t inlen, char quote) static inline size_t fr_value_substr_aunescape(TALLOC_CTX *ctx
size_t	fr_value_str_unescape (fr_sbuff_t *out, fr_sbuff_t *in, size_t inlen, char quote)
	Convert a string value with escape sequences into its binary form. More...
size_t	fr_value_substr_unescape (fr_sbuff_t *out, fr_sbuff_t *in, size_t inlen, char quote)
	Convert a string value with escape sequences into its binary form. More...
int	fr_value_unbox_ipaddr (fr_ipaddr_t *dst, fr_value_box_t *src)
	Unbox an IP address performing a type check. More...

Variables
size_t const	fr_value_box_field_sizes []
	How many bytes wide each of the value data fields are. More...
size_t const	fr_value_box_offsets []
	Where the value starts in the fr_value_box_t. More...
fr_sbuff_escape_rules_t	fr_value_escape_backtick
fr_sbuff_escape_rules_t *	fr_value_escape_by_char [UINT8_MAX+1]
fr_sbuff_escape_rules_t *	fr_value_escape_by_quote [T_TOKEN_LAST]
fr_sbuff_escape_rules_t	fr_value_escape_double
fr_sbuff_escape_rules_t	fr_value_escape_secret
	Escape secret fields by simply mashing all data to '. More...
fr_sbuff_escape_rules_t	fr_value_escape_single
fr_sbuff_escape_rules_t	fr_value_escape_solidus
fr_sbuff_escape_rules_t	fr_value_escape_unprintables
fr_sbuff_unescape_rules_t	fr_value_unescape_backtick
fr_sbuff_unescape_rules_t *	fr_value_unescape_by_char [UINT8_MAX+1]
fr_sbuff_unescape_rules_t *	fr_value_unescape_by_quote [T_TOKEN_LAST]
fr_sbuff_unescape_rules_t	fr_value_unescape_double
fr_sbuff_unescape_rules_t	fr_value_unescape_single
fr_sbuff_unescape_rules_t	fr_value_unescape_solidus
static size_t char fr_sbuff_t *	in
static size_t char fr_sbuff_t size_t	inlen
static size_t char **	out

List and cursor function definitions
#define	fr_value_box_list_foreach(_list_head, _iter)   fr_dlist_foreach(fr_value_box_list_dlist_head(_list_head), fr_value_box_t, _iter)
#define	fr_value_box_list_foreach_safe(_list_head, _iter)   fr_dlist_foreach_safe(fr_value_box_list_dlist_head(_list_head), fr_value_box_t, _iter)

Field accessors for #fr_value_box_t
Use these instead of accessing fields directly to make refactoring easier in future.
#define	vb_bool   datum.boolean
#define	vb_date   datum.date
#define	vb_ether   datum.ether.addr
#define	vb_float32   datum.float32
#define	vb_float64   datum.float64
#define	vb_group   datum.children
#define	vb_ifid   datum.ifid.addr
#define	vb_int16   datum.int16
#define	vb_int32   datum.int32
#define	vb_int64   datum.int64
#define	vb_int8   datum.int8
#define	vb_ip   datum.ip
#define	vb_length   datum.length
#define	vb_octets   datum.octets
#define	vb_size   datum.size
#define	vb_strvalue   datum.strvalue
#define	vb_time_delta   datum.time_delta
#define	vb_timeval   datum.timeval
#define	vb_uint128   datum.uint128
#define	vb_uint16   datum.uint16
#define	vb_uint32   datum.uint32
#define	vb_uint64   datum.uint64
#define	vb_uint8   datum.uint8
#define	vb_void   datum.ptr

Argument boxing macros
These macros allow C types to be passed to functions which take boxed arguments, without needing to declare a fr_value_box_t explicitly on the stack.
#define	_fr_box(_type, _field, _val)   (&(fr_value_box_t){ .type = _type, _field = (_val), VALUE_BOX_NDEBUG_INITIALISER })
#define	_fr_box_with_da(_type, _field, _val, _da)   (&(fr_value_box_t){ .type = _type, _field = (_val), .enumv = (_da) })
#define	_fr_box_with_len(_type, _field, _val, _len)   &(fr_value_box_t){ .type = _type, _field = _val, .vb_length = _len, VALUE_BOX_NDEBUG_INITIALISER }
#define	fr_box(_val)
	Create an ephemeral box. More...
#define	fr_box_bool(_val)   _fr_box(FR_TYPE_BOOL, .vb_bool, _val)
#define	fr_box_date(_val)   _fr_box(FR_TYPE_DATE, .vb_date, _val)
#define	fr_box_ether(_val)   &(fr_value_box_t){ .type = FR_TYPE_ETHERNET, .vb_ether = { _val[0], _val[1], _val[2], _val[3], _val[4], _val[5] } }
#define	fr_box_float32(_val)   _fr_box(FR_TYPE_FLOAT32, .vb_float32, _val)
#define	fr_box_float64(_val)   _fr_box(FR_TYPE_FLOAT64, .vb_float64, _val)
#define	fr_box_ifid(_val)   _fr_box(FR_TYPE_IFID, .vb_ifid, _val)
#define	fr_box_int16(_val)   _fr_box(FR_TYPE_INT16, .vb_int16, _val)
#define	fr_box_int32(_val)   _fr_box(FR_TYPE_INT32, .vb_int32, _val)
#define	fr_box_int64(_val)   _fr_box(FR_TYPE_INT64, .vb_int64, _val)
#define	fr_box_int8(_val)   _fr_box(FR_TYPE_INT8, .vb_int8, _val)
#define	fr_box_ipaddr(_val)
#define	fr_box_ipv4addr(_val)   _fr_box(FR_TYPE_IPV4_ADDR, .vb_ip, _val)
#define	fr_box_ipv4prefix(_val)   _fr_box(FR_TYPE_IPV4_PREFIX, .vb_ip, _val)
#define	fr_box_ipv6addr(_val)   _fr_box(FR_TYPE_IPV6_ADDR, .vb_ip, _val)
#define	fr_box_ipv6prefix(_val)   _fr_box(FR_TYPE_IPV6_PREFIX, .vb_ip, _val)
#define	fr_box_len(_val, _len)
	Create an ephemeral boxed value with a variable length. More...
#define	fr_box_octets(_val, _len)   _fr_box_with_len(FR_TYPE_OCTETS, .vb_octets, _val, _len)
#define	fr_box_octets_buffer(_val)   _fr_box_with_len(FR_TYPE_OCTETS, .vb_octets, _val, talloc_array_length(_val))
#define	fr_box_size(_val)   _fr_box(FR_TYPE_SIZE, .vb_size, _val)
#define	fr_box_strvalue(_val)   _fr_box_with_len(FR_TYPE_STRING, .vb_strvalue, _val, strlen(_val))
#define	fr_box_strvalue_buffer(_val)   _fr_box_with_len(FR_TYPE_STRING, .vb_strvalue, _val, talloc_array_length(_val) - 1)
#define	fr_box_strvalue_len(_val, _len)   _fr_box_with_len(FR_TYPE_STRING, .vb_strvalue, _val, _len)
#define	fr_box_time(_val)   _fr_box(FR_TYPE_DATE, .vb_date, fr_time_to_unix_time(_val))
#define	fr_box_time_delta(_val)   fr_box_time_delta_with_res((_val), FR_TIME_RES_SEC)
#define	fr_box_time_delta_msec(_val)   fr_box_time_delta_with_res((_val), FR_TIME_RES_MSEC)
#define	fr_box_time_delta_nsec(_val)   fr_box_time_delta_with_res((_val), FR_TIME_RES_NSEC)
#define	fr_box_time_delta_sec(_val)   fr_box_time_delta_with_res((_val), FR_TIME_RES_SEC)
#define	fr_box_time_delta_usec(_val)   fr_box_time_delta_with_res((_val), FR_TIME_RES_USEC)
#define	fr_box_time_delta_with_res(_val, _res)
#define	fr_box_uint128(_val)   _fr_box(FR_TYPE_UINT128, .vb_uint128, _val)
#define	fr_box_uint16(_val)   _fr_box(FR_TYPE_UINT16, .vb_uint16, _val)
#define	fr_box_uint32(_val)   _fr_box(FR_TYPE_UINT32, .vb_uint32, _val)
#define	fr_box_uint64(_val)   _fr_box(FR_TYPE_UINT64, .vb_uint64, _val)
#define	fr_box_uint8(_val)   _fr_box(FR_TYPE_UINT8, .vb_uint8, _val)

Type checking macros
Convenience macros for checking if a box is a specific type.
#define	fr_box_is_bool(_x)   fr_type_is_bool((_x)->type)
#define	fr_box_is_combo_ipaddr(_x)   fr_type_is_combo_ipaddr((_x)->type)
#define	fr_box_is_combo_ipprefix(_x)   fr_type_is_combo_ipprefix((_x)->type)
#define	fr_box_is_date(_x)   fr_type_is_date((_x)->type)
#define	fr_box_is_ethernet(_x)   fr_type_is_ethernet((_x)->type)
#define	fr_box_is_fixed_size(_x)   fr_type_is_fixed_size((_x)->type)
#define	fr_box_is_float32(_x)   fr_type_is_float32((_x)->type)
#define	fr_box_is_float64(_x)   fr_type_is_float64((_x)->type)
#define	fr_box_is_group(_x)   fr_type_is_group((_x)->type)
#define	fr_box_is_ifid(_x)   fr_type_is_ifid((_x)->type)
#define	fr_box_is_int16(_x)   fr_type_is_int16((_x)->type)
#define	fr_box_is_int32(_x)   fr_type_is_int32((_x)->type)
#define	fr_box_is_int64(_x)   fr_type_is_int64((_x)->type)
#define	fr_box_is_int8(_x)   fr_type_is_int8((_x)->type)
#define	fr_box_is_integer(_x)   fr_type_is_integer((_x)->type)
#define	fr_box_is_integer_except_bool(_x)   fr_type_is_integer_except_bool((_x)->type)
#define	fr_box_is_ip(_x)   fr_type_is_ip((_x)->type)
#define	fr_box_is_ipv4addr(_x)   fr_type_is_ipv4addr((_x)->type)
#define	fr_box_is_ipv4prefix(_x)   fr_type_is_ipv4prefix((_x)->type)
#define	fr_box_is_ipv6addr(_x)   fr_type_is_ipv6addr((_x)->type)
#define	fr_box_is_ipv6prefix(_x)   fr_type_is_ipv6prefix((_x)->type)
#define	fr_box_is_non_value(_x)   fr_type_is_non_value((_x)->type)
#define	fr_box_is_null(_x)   fr_type_is_null((_x)->type)
#define	fr_box_is_numeric(_x)   fr_type_is_numeric((_x)->type)
#define	fr_box_is_octets(_x)   fr_type_is_octets((_x)->type)
#define	fr_box_is_quoted(_x)   fr_type_is_quoted((_x)->type)
#define	fr_box_is_size(_x)   fr_type_is_size((_x)->type)
#define	fr_box_is_string(_x)   fr_type_is_string((_x)->type)
#define	fr_box_is_struct(_x)   fr_type_is_struct((_x)->type)
#define	fr_box_is_structural(_x)   fr_type_is_structural((_x)->type)
#define	fr_box_is_structural_except_vsa(_x)   fr_type_is_structural_except_vsa((_x)->type)
#define	fr_box_is_time_delta(_x)   fr_type_is_time_delta((_x)->type)
#define	fr_box_is_tlv(_x)   fr_type_is_tlv((_x)->type)
#define	fr_box_is_uint16(_x)   fr_type_is_uint16((_x)->type)
#define	fr_box_is_uint32(_x)   fr_type_is_uint32((_x)->type)
#define	fr_box_is_uint64(_x)   fr_type_is_uint64((_x)->type)
#define	fr_box_is_uint8(_x)   fr_type_is_uint8((_x)->type)
#define	fr_box_is_value(_x)   fr_type_is_value((_x)->type)
#define	fr_box_is_value_box(_x)   fr_type_is_value_box((_x)->type)
#define	fr_box_is_variable_size(_x)   fr_type_is_variable_size((_x)->type)
#define	fr_box_is_vendor(_x)   fr_type_is_vendor((_x)->type)
#define	fr_box_is_void(_x)   fr_type_is_void((_x)->type)
#define	fr_box_is_vsa(_x)   fr_type_is_vsa((_x)->type)

Allocation and initialisation functions
These macros and inline functions simplify working with lists of value boxes.
static fr_value_box_t *	_fr_value_box_alloc (NDEBUG_LOCATION_ARGS TALLOC_CTX *ctx, fr_type_t type, fr_dict_attr_t const *enumv)
static always_inline void	_fr_value_box_init (NDEBUG_LOCATION_ARGS fr_value_box_t *vb, fr_type_t type, fr_dict_attr_t const *enumv, bool tainted)
#define	fr_value_box_alloc(_ctx, _type, _enumv)   _fr_value_box_alloc(NDEBUG_LOCATION_EXP _ctx, _type, _enumv)
	Allocate a value box of a specific type. More...
#define	fr_value_box_alloc_null(_ctx)   _fr_value_box_alloc(NDEBUG_LOCATION_EXP _ctx, FR_TYPE_NULL, NULL)
	Allocate a value box for later use with a value assignment function. More...
#define	fr_value_box_init(_vb, _type, _enumv, _tainted)   _fr_value_box_init(NDEBUG_LOCATION_EXP _vb, _type, _enumv, _tainted)
	Initialise a fr_value_box_t. More...
#define	fr_value_box_init_null(_vb)   _fr_value_box_init(NDEBUG_LOCATION_EXP _vb, FR_TYPE_NULL, NULL, false)
	Initialise an empty/null box that will be filled later. More...
#define	FR_VALUE_BOX_INITIALISER(_vb, _type, _field, _val)
	A static initialiser for stack/globally allocated boxes. More...
#define	FR_VALUE_BOX_INITIALISER_NULL(_vb)
	A static initialiser for stack/globally allocated boxes. More...

Value box assignment functions
These functions allow C values to be assigned to value boxes. They will work with uninitialised/stack allocated memory.
#define	DEF_BOXING_FUNC(_ctype, _field, _type)
#define	DEF_UNBOXING_FUNC(_ctype, _field, _type)
#define	fr_value_box(_box, _var, _tainted)
	Automagically fill in a box, determining the value type from the type of the C variable. More...
static always_inline int	fr_value_box_ethernet_addr (fr_value_box_t *dst, fr_dict_attr_t const *enumv, fr_ethernet_t const *src, bool tainted)
#define	fr_value_box_len(_ctx, _box, _var, _len, _tainted)
	Automagically fill in a box, for types with length. More...
static int	fr_value_box_memcpy_in (fr_value_box_t *vb, void const *in)
	Copy a C value value to a value box. More...
static int	fr_value_box_memcpy_out (void *out, fr_value_box_t const *vb)
	Copy the value of a value box to a field in a C struct. More...
static uint8_t *	fr_value_box_raw (fr_value_box_t const *vb, fr_type_t type)
	Return a pointer to the "raw" value from a value-box. More...
static int	fr_value_unbox_ethernet_addr (fr_ethernet_t *dst, fr_value_box_t *src)
	Unbox an ethernet value (6 bytes, network byte order) More...
#define	fr_value_unbox_shallow(_var, _box)
	Unbox simple types performing type checks. More...

List and cursor type definitions
typedef uintptr_t	fr_value_box_safe_for_t
	Escaping that's been applied to a value box. More...

Escape functions
Apply a transformation to a value box or list of value boxes.
int	fr_value_box_escape_in_place (fr_value_box_t *vb, fr_value_box_escape_t escape, fr_value_box_safe_for_t escaped, void *uctx))
	Escape a single value box in place. More...
typedef int(*	fr_value_box_escape_t) (fr_value_box_t *vb, void *uctx)
	Escape a value box. More...
int	fr_value_box_list_escape_in_place (fr_value_box_list_t *list, fr_value_box_escape_t escape, fr_value_box_safe_for_t escaped, void *uctx))
	Escape a list of value boxes in place. More...

Parsing rules for various types of string
fr_sbuff_parse_rules_t const *	value_parse_rules_3quoted [T_TOKEN_LAST]
fr_sbuff_parse_rules_t const	value_parse_rules_backtick_3quoted
fr_sbuff_parse_rules_t const	value_parse_rules_backtick_quoted
fr_sbuff_parse_rules_t const	value_parse_rules_backtick_unquoted
fr_sbuff_parse_rules_t const	value_parse_rules_bareword_quoted
fr_sbuff_parse_rules_t const	value_parse_rules_bareword_unquoted
	Default formatting rules. More...
fr_sbuff_parse_rules_t const	value_parse_rules_double_3quoted
fr_sbuff_parse_rules_t const	value_parse_rules_double_quoted
fr_sbuff_parse_rules_t const	value_parse_rules_double_unquoted
fr_sbuff_parse_rules_t const *	value_parse_rules_quoted [T_TOKEN_LAST]
	Parse rules for quoted strings. More...
fr_sbuff_parse_rules_t const *	value_parse_rules_quoted_char [UINT8_MAX]
fr_sbuff_parse_rules_t const	value_parse_rules_single_3quoted
fr_sbuff_parse_rules_t const	value_parse_rules_single_quoted
fr_sbuff_parse_rules_t const	value_parse_rules_single_unquoted
fr_sbuff_parse_rules_t const	value_parse_rules_solidus_3quoted
fr_sbuff_parse_rules_t const	value_parse_rules_solidus_quoted
fr_sbuff_parse_rules_t const	value_parse_rules_solidus_unquoted
fr_sbuff_parse_rules_t const *	value_parse_rules_unquoted [T_TOKEN_LAST]
	Parse rules for non-quoted strings. More...
fr_sbuff_parse_rules_t const *	value_parse_rules_unquoted_char [UINT8_MAX]

Print the value of a value box as a string
static fr_slen_t	data
static fr_slen_t	fr_value_box_aprint (TALLOC_CTX *ctx, char **out, fr_value_box_t const *data, fr_sbuff_escape_rules_t const *e_rules) 1(fr_value_box_print
static fr_slen_t static e_rules fr_slen_t	fr_value_box_aprint_quoted (TALLOC_CTX *ctx, char **out, fr_value_box_t const *data, fr_token_t quote) 1(fr_value_box_print_quoted
ssize_t	fr_value_box_print (fr_sbuff_t *out, fr_value_box_t const *data, fr_sbuff_escape_rules_t const *e_rules))
	Print one boxed value to a string. More...
ssize_t	fr_value_box_print_quoted (fr_sbuff_t *out, fr_value_box_t const *data, fr_token_t quote)
	Print one boxed value to a string with quotes (where needed) More...

Convenience functions
These macros and inline functions simplify working with lists of value boxes.
static bool	fr_value_box_list_len_min (fr_value_box_list_t const *list, unsigned int min)
	Determines whether a list contains the number of boxes required. More...

Box to box copying
static fr_value_box_t *	fr_value_box_acopy (TALLOC_CTX *ctx, fr_value_box_t const *src)
	Copy an existing box, allocating a new box to hold its contents. More...
void	fr_value_box_clear (fr_value_box_t *data))
	Clear/free any existing value and metadata. More...
void	fr_value_box_clear_value (fr_value_box_t *data))
	Clear/free any existing value. More...
int	fr_value_box_copy (TALLOC_CTX *ctx, fr_value_box_t *dst, const fr_value_box_t *src))
	Copy value data verbatim duplicating any buffers. More...
void	fr_value_box_copy_shallow (TALLOC_CTX *ctx, fr_value_box_t *dst, const fr_value_box_t *src))
	Perform a shallow copy of a value_box. More...
int	fr_value_box_steal (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_value_box_t *src))
	Copy value data verbatim moving any buffers to the specified context. More...

Assign and manipulate binary-unsafe C strings
int	format (printf, 5, 0))
int	fr_value_box_asprintf (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, bool tainted, char const *fmt,...)
int	fr_value_box_strdup (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, char const *src, bool tainted))
	Copy a nul terminated string to a fr_value_box_t. More...
void	fr_value_box_strdup_shallow (fr_value_box_t *dst, fr_dict_attr_t const *enumv, char const *src, bool tainted))
	Assign a buffer containing a nul terminated string to a box, but don't copy it. More...
void	fr_value_box_strdup_shallow_replace (fr_value_box_t *vb, char const *src, ssize_t len)
	Free the existing buffer (if talloced) associated with the valuebox, and replace it with a new one. More...
int	fr_value_box_strtrim (TALLOC_CTX *ctx, fr_value_box_t *vb))
	Trim the length of the string buffer to match the length of the C string. More...
int	fr_value_box_vasprintf (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, bool tainted, char const *fmt, va_list ap)
int	nonnull (2, 5))

Assign and manipulate binary-safe strings
int	fr_value_box_bstr_alloc (TALLOC_CTX *ctx, char **out, fr_value_box_t *dst, fr_dict_attr_t const *enumv, size_t len, bool tainted))
	Alloc and assign an empty \0 terminated string to a fr_value_box_t. More...
int	fr_value_box_bstr_append_buffer (TALLOC_CTX *ctx, fr_value_box_t *dst, char const *src, bool tainted))
	Append a talloced buffer to an existing fr_value_box_t. More...
int	fr_value_box_bstr_realloc (TALLOC_CTX *ctx, char **out, fr_value_box_t *dst, size_t len))
	Change the length of a buffer already allocated to a value box. More...
int	fr_value_box_bstrdup_buffer (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, char const *src, bool tainted))
	Copy a nul terminated talloced buffer to a fr_value_box_t. More...
int	fr_value_box_bstrdup_buffer_shallow (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, char const *src, bool tainted))
	Assign a talloced buffer containing a nul terminated string to a box, but don't copy it. More...
int	fr_value_box_bstrn_append (TALLOC_CTX *ctx, fr_value_box_t *dst, char const *src, size_t len, bool tainted))
	Append bytes from a buffer to an existing fr_value_box_t. More...
int	fr_value_box_bstrndup (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, char const *src, size_t len, bool tainted))
	Copy a string to to a fr_value_box_t. More...
int	fr_value_box_bstrndup_dbuff (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, fr_dbuff_t *dbuff, size_t len, bool tainted))
void	fr_value_box_bstrndup_shallow (fr_value_box_t *dst, fr_dict_attr_t const *enumv, char const *src, size_t len, bool tainted))
	Assign a string to to a fr_value_box_t. More...

Assign and manipulate octets strings
int	fr_value_box_mem_alloc (TALLOC_CTX *ctx, uint8_t **out, fr_value_box_t *dst, fr_dict_attr_t const *enumv, size_t len, bool tainted))
	Pre-allocate an octets buffer for filling by the caller. More...
int	fr_value_box_mem_append (TALLOC_CTX *ctx, fr_value_box_t *dst, uint8_t const *src, size_t len, bool tainted))
	Append data to an existing fr_value_box_t. More...
int	fr_value_box_mem_append_buffer (TALLOC_CTX *ctx, fr_value_box_t *dst, uint8_t const *src, bool tainted))
	Append a talloc buffer to an existing fr_value_box_t. More...
int	fr_value_box_mem_realloc (TALLOC_CTX *ctx, uint8_t **out, fr_value_box_t *dst, size_t len))
	Change the length of a buffer already allocated to a value box. More...
int	fr_value_box_memdup (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, uint8_t const *src, size_t len, bool tainted))
	Copy a buffer to a fr_value_box_t. More...
int	fr_value_box_memdup_buffer (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, uint8_t const *src, bool tainted))
	Copy a talloced buffer to a fr_value_box_t. More...
void	fr_value_box_memdup_buffer_shallow (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, uint8_t const *src, bool tainted))
	Assign a talloced buffer to a box, but don't copy it. More...
int	fr_value_box_memdup_dbuff (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_dict_attr_t const *enumv, fr_dbuff_t *dbuff, size_t len, bool tainted))
void	fr_value_box_memdup_shallow (fr_value_box_t *dst, fr_dict_attr_t const *enumv, uint8_t const *src, size_t len, bool tainted))
	Assign a buffer to a box, but don't copy it. More...

Parsing
ssize_t	fr_value_box_from_str (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_type_t dst_type, fr_dict_attr_t const *dst_enumv, char const *in, size_t inlen, fr_sbuff_unescape_rules_t const *erules, bool tainted))
ssize_t	fr_value_box_from_substr (TALLOC_CTX *ctx, fr_value_box_t *dst, fr_type_t dst_type, fr_dict_attr_t const *dst_enumv, fr_sbuff_t *in, fr_sbuff_parse_rules_t const *rules, bool tainted))
	Convert string value to a fr_value_box_t type. More...

Work with lists of boxed values
void	fr_value_box_flatten (TALLOC_CTX *ctx, fr_value_box_list_t *list, bool steal, bool free))
	Removes a single layer of nesting, moving all children into the parent list. More...
int	fr_value_box_list_acopy (TALLOC_CTX *ctx, fr_value_box_list_t *out, fr_value_box_list_t const *in))
	Do a full copy of a list of value boxes. More...
char *	fr_value_box_list_aprint (TALLOC_CTX *ctx, fr_value_box_list_t const *list, char const *delim, fr_sbuff_escape_rules_t const *e_rules))
	Concatenate the string representations of a list of value boxes together. More...
char *	fr_value_box_list_aprint_secure (TALLOC_CTX *ctx, fr_value_box_list_t const *list, char const *delim, fr_sbuff_escape_rules_t const *e_rules))
	Concatenate the string representations of a list of value boxes together hiding "secret" values. More...
ssize_t	fr_value_box_list_concat_as_octets (bool *tainted, bool *secret, fr_dbuff_t *dbuff, fr_value_box_list_t *list, uint8_t const *sep, size_t sep_len, fr_value_box_list_action_t proc_action, bool flatten))
	Concatenate a list of value boxes together. More...
ssize_t	fr_value_box_list_concat_as_string (bool *tainted, bool *secret, fr_sbuff_t *sbuff, fr_value_box_list_t *list, char const *sep, size_t sep_len, fr_sbuff_escape_rules_t const *e_rules, fr_value_box_list_action_t proc_action, fr_value_box_safe_for_t safe_for, bool flatten))
	Concatenate a list of value boxes together. More...
int	fr_value_box_list_concat_in_place (TALLOC_CTX *ctx, fr_value_box_t *out, fr_value_box_list_t *list, fr_type_t type, fr_value_box_list_action_t proc_action, bool flatten, size_t max_size))
	Concatenate a list of value boxes. More...
void	fr_value_box_list_taint (fr_value_box_list_t *head))
	Taint every list member (and their children) More...
bool	fr_value_box_list_tainted (fr_value_box_list_t const *head))
	Check to see if any list members (or their children) are tainted. More...
void	fr_value_box_list_untaint (fr_value_box_list_t *head))
	Untaint every list member (and their children) More...

Hashing
uint32_t	fr_value_box_hash (fr_value_box_t const *vb)
	Hash the contents of a value box. More...

Debug functions
void	fr_value_box_debug (fr_value_box_t const *vb)
	Print the value of a box as info messages. More...
void	fr_value_box_list_debug (fr_value_box_list_t const *head)
	Print a list of value boxes as info messages. More...

Detailed Description

Boxed value structures and functions to manipulate them.

Copyright

2015-2018 Arran Cudbard-Bell (a.cud.nosp@m.bard.nosp@m.b@fre.nosp@m.erad.nosp@m.ius.o.nosp@m.rg)

Definition in file value.h.

---

Data Structure Documentation

fr_value_box_datum_t

union fr_value_box_datum_t

Definition at line 101 of file value.h.

Collaboration diagram for fr_value_box_datum_t:

Data Fields
struct fr_value_box_datum_t	__unnamed__
bool	boolean	A truth value.
fr_value_box_list_t	children	for groups
fr_unix_time_t	date	Date internal format in nanoseconds.
fr_ethernet_t	ether	Ethernet (MAC) address.
float	float32	Single precision float.
double	float64	Double precision float.
fr_ifid_t	ifid	IPv6 interface ID.
int16_t	int16	16bit signed integer.
int32_t	int32	32bit signed integer.
int64_t	int64	64bit signed integer;
int8_t	int8	8bit signed integer.
fr_ipaddr_t	ip	IPv4/6 address/prefix.
size_t	size	System specific file/memory size.
fr_time_delta_t	time_delta	a delta time in nanoseconds
uint128_t	uint128	128bit unsigned integer.
uint16_t	uint16	16bit unsigned integer.
uint32_t	uint32	32bit unsigned integer.
uint64_t	uint64	64bit unsigned integer.
uint8_t	uint8	8bit unsigned integer.

fr_value_box_datum_t.__unnamed153__

struct fr_value_box_datum_t.__unnamed153__

Definition at line 105 of file value.h.

Data Fields
__unnamed153__	__unnamed__
size_t	length	Only these types are variable length.

fr_value_box_datum_t.__unnamed153__.__unnamed155__

union fr_value_box_datum_t.__unnamed153__.__unnamed155__

Definition at line 106 of file value.h.

Data Fields
uint8_t const *_CONST	octets	Pointer to binary string.
void *_CONST	ptr	generic pointer.
char const *_CONST	strvalue	Pointer to UTF-8 string.

value_box_s

struct value_box_s

Union containing all data types supported by the server.

This union contains all data types that can be represented by fr_pair_ts. It may also be used in other parts of the server where values of different types need to be stored.

fr_type_t should be an enumeration of the values in this union.

Don't change the order of the fields below without checking that the output of radsize doesn't change.

The first few fields (before safe_for) are reused in the fr_pair_t. This allows structural data types to have vp->vp_type, and to also use / set the various flags defined below. Do NOT change the order of the fields!

Definition at line 170 of file value.h.

Collaboration diagram for value_box_s:

Data Fields
fr_value_box_datum_t	datum	The value held by the value box. Should appear last for packing efficiency.
unsigned int	edit: 1	to control foreach / edits
fr_value_box_entry_t	entry	Doubly linked list entry.
fr_dict_attr_t const *	enumv	Enumeration values.
char const *	file	File where the box was allocated or initialised.
unsigned int	immutable: 1	once set, the value cannot be changed
int	line	Line where the box was allocated or initialised.
uint64_t	magic	Value to verify that the structure was allocated or initialised properly.
fr_value_box_safe_for_t _CONST	safe_for	A unique value to indicate if that value box is safe for consumption by a particular module for a particular purpose. e.g. LDAP, SQL, etc. Usually set by the xlat framework on behalf of an xlat escaping function, and checked by a fr_value_box_escape_t to see if it needs to operate.
unsigned int	secret: 1	Same as fr_dict_attr_flags_t secret.
unsigned int	tainted: 1	i.e. did it come from an untrusted source
unsigned int	talloced: 1	Talloced, not stack or text allocated.
fr_type_t _CONST	type	Type and flags should appear together for packing efficiency. Type of this value-box, at the start, see pair.h

Macro Definition Documentation

_CONST

#define _CONST   const

Definition at line 64 of file value.h.

_fr_box

#define _fr_box	(		_type,
			_field,
			_val
	)		(&(fr_value_box_t){ .type = _type, _field = (_val), VALUE_BOX_NDEBUG_INITIALISER })

Definition at line 292 of file value.h.

_fr_box_with_da

#define _fr_box_with_da	(		_type,
			_field,
			_val,
			_da
	)		(&(fr_value_box_t){ .type = _type, _field = (_val), .enumv = (_da) })

Definition at line 330 of file value.h.

_fr_box_with_len

#define _fr_box_with_len	(		_type,
			_field,
			_val,
			_len
	)		&(fr_value_box_t){ .type = _type, _field = _val, .vb_length = _len, VALUE_BOX_NDEBUG_INITIALISER }

Definition at line 283 of file value.h.

DEF_BOXING_FUNC

#define DEF_BOXING_FUNC	(		_ctype,
			_field,
			_type
	)

Value:

static inline , always_inline) \
int fr_value_box_##_field(fr_value_box_t *dst, fr_dict_attr_t const *enumv, \
                          _ctype const value, bool tainted) { \
        fr_value_box_init(dst, _type, enumv, tainted); \
        dst->vb_##_field = value; \
        return 0; \
}

Definition at line 831 of file value.h.

DEF_UNBOXING_FUNC

#define DEF_UNBOXING_FUNC	(		_ctype,
			_field,
			_type
	)

Value:

static inline   \
int fr_value_unbox_##_field(_ctype *var, fr_value_box_t const *src) { \
        if (unlikely(src->type != _type)) { \
                fr_strerror_printf("Unboxing failed.  Needed type %s, had type %s", \
                                   fr_type_to_str(_type), \
                                   fr_type_to_str(src->type)); \
                return -1; \
        } \
        *var = src->vb_##_field; \
        return 0; \
}

Definition at line 927 of file value.h.

fr_box

#define fr_box

(

_val

)

Value:

        _Generic((_val), \
        fr_ipaddr_t *           : fr_box_ipaddr, \
        fr_ipaddr_t const *     : fr_box_ipaddr, \
        fr_ethernet_t *         : fr_box_ether, \
        fr_ethernet_t const *   : fr_box_ether, \
        bool                    : fr_box_bool, \
        int8_t                  : fr_box_int8, \
        int16_t                 : fr_box_int16, \
        int32_t                 : fr_box_int32, \
        int64_t                 : fr_box_int16, \
        uint8_t                 : fr_box_uint8, \
        uint16_t                : fr_box_uint16, \
        uint32_t                : fr_box_uint32, \
        uint64_t                : fr_box_uint64, \
        size_t                  : fr_box_size, \
        float                   : fr_box_float32, \
        double                  : fr_box_float64 \
)(_val)

Create an ephemeral box.

Note

This likely shouldn't be used for variable width integers like 'int' as it obscures the underlying type.

Parameters

[in]

_val

to box.

Definition at line 360 of file value.h.

fr_box_bool

#define fr_box_bool

(

_val

)

_fr_box(FR_TYPE_BOOL, .vb_bool, _val)

Definition at line 308 of file value.h.

fr_box_date

#define fr_box_date

(

_val

)

_fr_box(FR_TYPE_DATE, .vb_date, _val)

Definition at line 324 of file value.h.

fr_box_ether

#define fr_box_ether

(

_val

)

&(fr_value_box_t){ .type = FR_TYPE_ETHERNET, .vb_ether = { _val[0], _val[1], _val[2], _val[3], _val[4], _val[5] } }

Definition at line 306 of file value.h.

fr_box_float32

#define fr_box_float32

(

_val

)

_fr_box(FR_TYPE_FLOAT32, .vb_float32, _val)

Definition at line 321 of file value.h.

fr_box_float64

#define fr_box_float64

(

_val

)

_fr_box(FR_TYPE_FLOAT64, .vb_float64, _val)

Definition at line 322 of file value.h.

fr_box_ifid

#define fr_box_ifid

(

_val

)

_fr_box(FR_TYPE_IFID, .vb_ifid, _val)

Definition at line 305 of file value.h.

fr_box_int16

#define fr_box_int16

(

_val

)

_fr_box(FR_TYPE_INT16, .vb_int16, _val)

Definition at line 317 of file value.h.

fr_box_int32

#define fr_box_int32

(

_val

)

_fr_box(FR_TYPE_INT32, .vb_int32, _val)

Definition at line 318 of file value.h.

fr_box_int64

#define fr_box_int64

(

_val

)

_fr_box(FR_TYPE_INT64, .vb_int64, _val)

Definition at line 319 of file value.h.

fr_box_int8

#define fr_box_int8

(

_val

)

_fr_box(FR_TYPE_INT8, .vb_int8, _val)

Definition at line 316 of file value.h.

fr_box_ipaddr

#define fr_box_ipaddr

(

_val

)

Value:

                                                        _fr_box((((_val).af == AF_INET) ? \
                                                        (((_val).prefix == 32) ?        FR_TYPE_IPV4_ADDR : \
                                                                                FR_TYPE_IPV4_PREFIX) : \
                                                        (((_val).prefix == 128) ?       FR_TYPE_IPV6_ADDR : \
                                                                                FR_TYPE_IPV6_PREFIX)), \
                                                .vb_ip, _val)

Definition at line 294 of file value.h.

fr_box_ipv4addr

#define fr_box_ipv4addr

(

_val

)

_fr_box(FR_TYPE_IPV4_ADDR, .vb_ip, _val)

Definition at line 300 of file value.h.

fr_box_ipv4prefix

#define fr_box_ipv4prefix

(

_val

)

_fr_box(FR_TYPE_IPV4_PREFIX, .vb_ip, _val)

Definition at line 301 of file value.h.

fr_box_ipv6addr

#define fr_box_ipv6addr

(

_val

)

_fr_box(FR_TYPE_IPV6_ADDR, .vb_ip, _val)

Definition at line 302 of file value.h.

fr_box_ipv6prefix

#define fr_box_ipv6prefix

(

_val

)

_fr_box(FR_TYPE_IPV6_PREFIX, .vb_ip, _val)

Definition at line 303 of file value.h.

fr_box_is_bool

#define fr_box_is_bool

(

_x

)

fr_type_is_bool((_x)->type)

Definition at line 412 of file value.h.

fr_box_is_combo_ipaddr

#define fr_box_is_combo_ipaddr

(

_x

)

fr_type_is_combo_ipaddr((_x)->type)

Definition at line 409 of file value.h.

fr_box_is_combo_ipprefix

#define fr_box_is_combo_ipprefix

(

_x

)

fr_type_is_combo_ipprefix((_x)->type)

Definition at line 410 of file value.h.

fr_box_is_date

#define fr_box_is_date

(

_x

)

fr_type_is_date((_x)->type)

Definition at line 423 of file value.h.

fr_box_is_ethernet

#define fr_box_is_ethernet

(

_x

)

fr_type_is_ethernet((_x)->type)

Definition at line 411 of file value.h.

fr_box_is_fixed_size

#define fr_box_is_fixed_size

(

_x

)

fr_type_is_fixed_size((_x)->type)

Definition at line 440 of file value.h.

fr_box_is_float32

#define fr_box_is_float32

(

_x

)

fr_type_is_float32((_x)->type)

Definition at line 421 of file value.h.

fr_box_is_float64

#define fr_box_is_float64

(

_x

)

fr_type_is_float64((_x)->type)

Definition at line 422 of file value.h.

fr_box_is_group

#define fr_box_is_group

(

_x

)

fr_type_is_group((_x)->type)

Definition at line 430 of file value.h.

fr_box_is_ifid

#define fr_box_is_ifid

(

_x

)

fr_type_is_ifid((_x)->type)

Definition at line 408 of file value.h.

fr_box_is_int16

#define fr_box_is_int16

(

_x

)

fr_type_is_int16((_x)->type)

Definition at line 418 of file value.h.

fr_box_is_int32

#define fr_box_is_int32

(

_x

)

fr_type_is_int32((_x)->type)

Definition at line 419 of file value.h.

fr_box_is_int64

#define fr_box_is_int64

(

_x

)

fr_type_is_int64((_x)->type)

Definition at line 420 of file value.h.

fr_box_is_int8

#define fr_box_is_int8

(

_x

)

fr_type_is_int8((_x)->type)

Definition at line 417 of file value.h.

fr_box_is_integer

#define fr_box_is_integer

(

_x

)

fr_type_is_integer((_x)->type)

Definition at line 435 of file value.h.

fr_box_is_integer_except_bool

#define fr_box_is_integer_except_bool

(

_x

)

fr_type_is_integer_except_bool((_x)->type)

Definition at line 434 of file value.h.

fr_box_is_ip

#define fr_box_is_ip

(

_x

)

fr_type_is_ip((_x)->type)

Definition at line 438 of file value.h.

fr_box_is_ipv4addr

#define fr_box_is_ipv4addr

(

_x

)

fr_type_is_ipv4addr((_x)->type)

Definition at line 404 of file value.h.

fr_box_is_ipv4prefix

#define fr_box_is_ipv4prefix

(

_x

)

fr_type_is_ipv4prefix((_x)->type)

Definition at line 405 of file value.h.

fr_box_is_ipv6addr

#define fr_box_is_ipv6addr

(

_x

)

fr_type_is_ipv6addr((_x)->type)

Definition at line 406 of file value.h.

fr_box_is_ipv6prefix

#define fr_box_is_ipv6prefix

(

_x

)

fr_type_is_ipv6prefix((_x)->type)

Definition at line 407 of file value.h.

fr_box_is_non_value

#define fr_box_is_non_value

(

_x

)

fr_type_is_non_value((_x)->type)

Definition at line 447 of file value.h.

fr_box_is_null

#define fr_box_is_null

(

_x

)

fr_type_is_null((_x)->type)

Definition at line 401 of file value.h.

fr_box_is_numeric

#define fr_box_is_numeric

(

_x

)

fr_type_is_numeric((_x)->type)

Definition at line 436 of file value.h.

fr_box_is_octets

#define fr_box_is_octets

(

_x

)

fr_type_is_octets((_x)->type)

Definition at line 403 of file value.h.

fr_box_is_quoted

#define fr_box_is_quoted

(

_x

)

fr_type_is_quoted((_x)->type)

Definition at line 443 of file value.h.

fr_box_is_size

#define fr_box_is_size

(

_x

)

fr_type_is_size((_x)->type)

Definition at line 425 of file value.h.

fr_box_is_string

#define fr_box_is_string

(

_x

)

fr_type_is_string((_x)->type)

Definition at line 402 of file value.h.

fr_box_is_struct

#define fr_box_is_struct

(

_x

)

fr_type_is_struct((_x)->type)

Definition at line 427 of file value.h.

fr_box_is_structural

#define fr_box_is_structural

(

_x

)

fr_type_is_structural((_x)->type)

Definition at line 446 of file value.h.

fr_box_is_structural_except_vsa

#define fr_box_is_structural_except_vsa

(

_x

)

fr_type_is_structural_except_vsa((_x)->type)

Definition at line 445 of file value.h.

fr_box_is_time_delta

#define fr_box_is_time_delta

(

_x

)

fr_type_is_time_delta((_x)->type)

Definition at line 424 of file value.h.

fr_box_is_tlv

#define fr_box_is_tlv

(

_x

)

fr_type_is_tlv((_x)->type)

Definition at line 426 of file value.h.

fr_box_is_uint16

#define fr_box_is_uint16

(

_x

)

fr_type_is_uint16((_x)->type)

Definition at line 414 of file value.h.

fr_box_is_uint32

#define fr_box_is_uint32

(

_x

)

fr_type_is_uint32((_x)->type)

Definition at line 415 of file value.h.

fr_box_is_uint64

#define fr_box_is_uint64

(

_x

)

fr_type_is_uint64((_x)->type)

Definition at line 416 of file value.h.

fr_box_is_uint8

#define fr_box_is_uint8

(

_x

)

fr_type_is_uint8((_x)->type)

Definition at line 413 of file value.h.

fr_box_is_value

#define fr_box_is_value

(

_x

)

fr_type_is_value((_x)->type)

Definition at line 442 of file value.h.

fr_box_is_value_box

#define fr_box_is_value_box

(

_x

)

fr_type_is_value_box((_x)->type)

Definition at line 431 of file value.h.

fr_box_is_variable_size

#define fr_box_is_variable_size

(

_x

)

fr_type_is_variable_size((_x)->type)

Definition at line 441 of file value.h.

fr_box_is_vendor

#define fr_box_is_vendor

(

_x

)

fr_type_is_vendor((_x)->type)

Definition at line 429 of file value.h.

fr_box_is_void

#define fr_box_is_void

(

_x

)

fr_type_is_void((_x)->type)

Definition at line 432 of file value.h.

fr_box_is_vsa

#define fr_box_is_vsa

(

_x

)

fr_type_is_vsa((_x)->type)

Definition at line 428 of file value.h.

fr_box_len

#define fr_box_len	(		_val,
			_len
	)

Value:

_Generic((_val), \
        char *                  : fr_box_strvalue_len, \
        char const *            : fr_box_strvalue_len, \
        uint8_t *               : fr_box_octets, \
        uint8_t const *         : fr_box_octets \
)(_val, _len)

Create an ephemeral boxed value with a variable length.

Parameters

[in]	_val	C variable to assign value from.
[in]	_len	of C variable.

Definition at line 384 of file value.h.

fr_box_octets

#define fr_box_octets	(		_val,
			_len
	)		_fr_box_with_len(FR_TYPE_OCTETS, .vb_octets, _val, _len)

Definition at line 288 of file value.h.

fr_box_octets_buffer

#define fr_box_octets_buffer

(

_val

)

_fr_box_with_len(FR_TYPE_OCTETS, .vb_octets, _val, talloc_array_length(_val))

Definition at line 290 of file value.h.

fr_box_size

#define fr_box_size

(

_val

)

_fr_box(FR_TYPE_SIZE, .vb_size, _val)

Definition at line 328 of file value.h.

fr_box_strvalue

#define fr_box_strvalue

(

_val

)

_fr_box_with_len(FR_TYPE_STRING, .vb_strvalue, _val, strlen(_val))

Definition at line 285 of file value.h.

fr_box_strvalue_buffer

#define fr_box_strvalue_buffer

(

_val

)

_fr_box_with_len(FR_TYPE_STRING, .vb_strvalue, _val, talloc_array_length(_val) - 1)

Definition at line 289 of file value.h.

fr_box_strvalue_len

#define fr_box_strvalue_len	(		_val,
			_len
	)		_fr_box_with_len(FR_TYPE_STRING, .vb_strvalue, _val, _len)

Definition at line 286 of file value.h.

fr_box_time

#define fr_box_time

(

_val

)

_fr_box(FR_TYPE_DATE, .vb_date, fr_time_to_unix_time(_val))

Definition at line 326 of file value.h.

fr_box_time_delta

#define fr_box_time_delta

(

_val

)

fr_box_time_delta_with_res((_val), FR_TIME_RES_SEC)

Definition at line 343 of file value.h.

fr_box_time_delta_msec

#define fr_box_time_delta_msec

(

_val

)

fr_box_time_delta_with_res((_val), FR_TIME_RES_MSEC)

Definition at line 347 of file value.h.

fr_box_time_delta_nsec

#define fr_box_time_delta_nsec

(

_val

)

fr_box_time_delta_with_res((_val), FR_TIME_RES_NSEC)

Definition at line 349 of file value.h.

fr_box_time_delta_sec

#define fr_box_time_delta_sec

(

_val

)

fr_box_time_delta_with_res((_val), FR_TIME_RES_SEC)

Definition at line 345 of file value.h.

fr_box_time_delta_usec

#define fr_box_time_delta_usec

(

_val

)

fr_box_time_delta_with_res((_val), FR_TIME_RES_USEC)

Definition at line 351 of file value.h.

fr_box_time_delta_with_res

#define fr_box_time_delta_with_res	(		_val,
			_res
	)

Value:

                                                                _fr_box_with_da(FR_TYPE_TIME_DELTA, \
                                                                .vb_time_delta, \
                                                                (_val), \
                                                                (&(fr_dict_attr_t){ \
                                                                        .name = NULL, \
                                                                        .type = FR_TYPE_TIME_DELTA, \
                                                                        .flags = { \
                                                                                .type_size = _res \
                                                                        } \
                                                                }))

Definition at line 332 of file value.h.

fr_box_uint128

#define fr_box_uint128

(

_val

)

_fr_box(FR_TYPE_UINT128, .vb_uint128, _val)

Definition at line 314 of file value.h.

fr_box_uint16

#define fr_box_uint16

(

_val

)

_fr_box(FR_TYPE_UINT16, .vb_uint16, _val)

Definition at line 311 of file value.h.

fr_box_uint32

#define fr_box_uint32

(

_val

)

_fr_box(FR_TYPE_UINT32, .vb_uint32, _val)

Definition at line 312 of file value.h.

fr_box_uint64

#define fr_box_uint64

(

_val

)

_fr_box(FR_TYPE_UINT64, .vb_uint64, _val)

Definition at line 313 of file value.h.

fr_box_uint8

#define fr_box_uint8

(

_val

)

_fr_box(FR_TYPE_UINT8, .vb_uint8, _val)

Definition at line 310 of file value.h.

FR_MAX_STRING_LEN

#define FR_MAX_STRING_LEN   254 /* RFC2138: string 0-253 octets */

Definition at line 30 of file value.h.

fr_value_box

#define fr_value_box	(		_box,
			_var,
			_tainted
	)

Value:

_Generic((_var), \
        fr_ipaddr_t *           : fr_value_box_ipaddr, \
        fr_ipaddr_t const *     : fr_value_box_ipaddr, \
        fr_ethernet_t *         : fr_value_box_ethernet_addr, \
        fr_ethernet_t const *   : fr_value_box_ethernet_addr, \
        bool                    : fr_value_box_bool, \
        uint8_t                 : fr_value_box_uint8, \
        uint16_t                : fr_value_box_uint16, \
        uint32_t                : fr_value_box_uint32, \
        uint64_t                : fr_value_box_uint64, \
        int8_t                  : fr_value_box_int8, \
        int16_t                 : fr_value_box_int16, \
        int32_t                 : fr_value_box_int32, \
        int64_t                 : fr_value_box_int64, \
        float                   : fr_value_box_float32, \
        double                  : fr_value_box_float64 \
)(_box, NULL, _var, _tainted)

Automagically fill in a box, determining the value type from the type of the C variable.

Simplify boxing for simple C types using the _Generic macro to emit code that fills in the value box based on the type of _var provided.

Note

Will not set the box value to tainted. You should do this manually if required.

Will not work for all box types. Will default to the 'simpler' box type, if the mapping between C type and box type is ambiguous.

Parameters

[in]	_box	to assign value to.
[in]	_var	C variable to assign value from.
[in]	_tainted	Whether the value came from an untrusted source.

Definition at line 871 of file value.h.

fr_value_box_alloc

#define fr_value_box_alloc	(		_ctx,
			_type,
			_enumv
	)		_fr_value_box_alloc(NDEBUG_LOCATION_EXP _ctx, _type, _enumv)

Allocate a value box of a specific type.

Allocates memory for the box, and sets the length of the value for fixed length types.

Parameters

[in]	_ctx	to allocate the value_box in.
[in]	_type	of value.
[in]	_enumv	Enumeration values.

Returns

• A new fr_value_box_t.
• NULL on error.

Definition at line 621 of file value.h.

fr_value_box_alloc_null

#define fr_value_box_alloc_null

(

_ctx

)

_fr_value_box_alloc(NDEBUG_LOCATION_EXP _ctx, FR_TYPE_NULL, NULL)

Allocate a value box for later use with a value assignment function.

Parameters

[in]

_ctx

to allocate the value_box in.

Returns

• A new fr_value_box_t.
• NULL on error.

Definition at line 632 of file value.h.

fr_value_box_init

#define fr_value_box_init	(		_vb,
			_type,
			_enumv,
			_tainted
	)		_fr_value_box_init(NDEBUG_LOCATION_EXP _vb, _type, _enumv, _tainted)

Initialise a fr_value_box_t.

The value should be set later with one of the fr_value_box_* functions.

Parameters

[in]	_vb	to initialise.
[in]	_type	to set.
[in]	_enumv	Enumeration values.
[in]	_tainted	Whether data will come from an untrusted source.

Definition at line 587 of file value.h.

fr_value_box_init_null

#define fr_value_box_init_null

(

_vb

)

_fr_value_box_init(NDEBUG_LOCATION_EXP _vb, FR_TYPE_NULL, NULL, false)

Initialise an empty/null box that will be filled later.

Parameters

[in]

_vb

to initialise.

Definition at line 593 of file value.h.

FR_VALUE_BOX_INITIALISER

#define FR_VALUE_BOX_INITIALISER	(		_vb,
			_type,
			_field,
			_val
	)

Value:

        { \
                .type = _type, \
                .datum = { \
                        _field = _val, \
                }, \
                .entry = { \
                        .entry = FR_DLIST_ENTRY_INITIALISER((_vb).entry.entry) \
                }, \
                VALUE_BOX_NDEBUG_INITIALISER \
        }

A static initialiser for stack/globally allocated boxes.

Definition at line 500 of file value.h.

FR_VALUE_BOX_INITIALISER_NULL

#define FR_VALUE_BOX_INITIALISER_NULL

(

_vb

)

Value:

        { \
                .type = FR_TYPE_NULL, \
                .entry = { \
                        .entry = FR_DLIST_ENTRY_INITIALISER((_vb).entry.entry) \
                }, \
                VALUE_BOX_NDEBUG_INITIALISER \
        }

A static initialiser for stack/globally allocated boxes.

We can only safely initialise a null box, as many other type need special initialisation

Definition at line 488 of file value.h.

fr_value_box_is_safe_for

#define fr_value_box_is_safe_for	(		_box,
			_safe_for
	)		(_box->safe_for == (fr_value_box_safe_for_t)_safe_for)

Definition at line 1055 of file value.h.

fr_value_box_len

#define fr_value_box_len	(		_ctx,
			_box,
			_var,
			_len,
			_tainted
	)

Value:

_Generic((_var), \
        char *                  : fr_value_box_bstrndup, \
        char const *            : fr_value_box_bstrndup, \
        uint8_t *               : fr_value_box_memdup, \
        uint8_t const *         : fr_value_box_memdup \
)(_ctx, _box, NULL, _var, _len, _tainted)

Automagically fill in a box, for types with length.

Parameters

[in]	_ctx	to allocate value in.
[in]	_box	to assign value to.
[in]	_var	C variable to assign value from.
[in]	_len	of C variable.
[in]	_tainted	Whether the value came from an untrusted source.

Definition at line 898 of file value.h.

fr_value_box_list_foreach

#define fr_value_box_list_foreach	(		_list_head,
			_iter
	)		fr_dlist_foreach(fr_value_box_list_dlist_head(_list_head), fr_value_box_t, _iter)

Definition at line 206 of file value.h.

fr_value_box_list_foreach_safe

#define fr_value_box_list_foreach_safe	(		_list_head,
			_iter
	)		fr_dlist_foreach_safe(fr_value_box_list_dlist_head(_list_head), fr_value_box_t, _iter)

Definition at line 207 of file value.h.

FR_VALUE_BOX_MAGIC

#define FR_VALUE_BOX_MAGIC   RADIUSD_MAGIC_NUMBER

Definition at line 91 of file value.h.

fr_value_box_mark_safe_for

#define fr_value_box_mark_safe_for	(		_box,
			_safe_for
	)		_fr_value_box_mark_safe_for(_box, (fr_value_box_safe_for_t)_safe_for)

Definition at line 1048 of file value.h.

FR_VALUE_BOX_NET_ERROR

#define FR_VALUE_BOX_NET_ERROR   SSIZE_MIN

Special value to indicate fr_value_box_from_network experienced a general error.

Definition at line 1014 of file value.h.

FR_VALUE_BOX_NET_MAX

#define FR_VALUE_BOX_NET_MAX   (FR_VALUE_BOX_NET_OOM + 1)

Special value to ensure other encoding/decoding errors don't overlap.

Definition at line 1022 of file value.h.

FR_VALUE_BOX_NET_OOM

#define FR_VALUE_BOX_NET_OOM   (FR_VALUE_BOX_NET_ERROR + 1)

Special value to indicate fr_value_box_from_network hit an out of memory error.

Definition at line 1018 of file value.h.

FR_VALUE_BOX_TO_NETWORK_RETURN

#define FR_VALUE_BOX_TO_NETWORK_RETURN	(		_dbuff,
			_value
	)		FR_DBUFF_RETURN(fr_value_box_to_network, _dbuff, _value)

Definition at line 1007 of file value.h.

fr_value_unbox_shallow

#define fr_value_unbox_shallow	(		_var,
			_box
	)

Value:

_Generic((_var), \
        uint8_t *               : fr_value_unbox_uint8, \
        uint16_t *              : fr_value_unbox_uint16, \
        uint32_t *              : fr_value_unbox_uint32, \
        uint64_t *              : fr_value_unbox_uint64, \
        int8_t *                : fr_value_unbox_int8, \
        int16_t *               : fr_value_unbox_int16, \
        int32_t *               : fr_value_unbox_int32, \
        int64_t *               : fr_value_unbox_int64, \
        float *                 : fr_value_unbox_float32, \
        double *                : fr_value_unbox_float64 \
)(_var, _box)

Unbox simple types performing type checks.

Parameters

[out]	_var	to write to.
[in]	_box	to unbox.

Definition at line 960 of file value.h.

VALUE_BOX_LIST_VERIFY [1/2]

#define VALUE_BOX_LIST_VERIFY

(

_x

)

fr_assert(_x)

Definition at line 1298 of file value.h.

VALUE_BOX_LIST_VERIFY [2/2]

#define VALUE_BOX_LIST_VERIFY

(

_x

)

fr_assert(_x)

Definition at line 1298 of file value.h.

VALUE_BOX_NDEBUG_INITIALISER

#define VALUE_BOX_NDEBUG_INITIALISER   .file = __FILE__, .line = __LINE__, .magic = FR_VALUE_BOX_MAGIC

Definition at line 229 of file value.h.

VALUE_BOX_VERIFY [1/2]

#define VALUE_BOX_VERIFY

(

_x

)

fr_assert(_x)

Definition at line 1297 of file value.h.

VALUE_BOX_VERIFY [2/2]

#define VALUE_BOX_VERIFY

(

_x

)

fr_assert(_x)

Definition at line 1297 of file value.h.

vb_bool

#define vb_bool   datum.boolean

Definition at line 251 of file value.h.

vb_date

#define vb_date   datum.date

Definition at line 266 of file value.h.

vb_ether

#define vb_ether   datum.ether.addr

Definition at line 249 of file value.h.

vb_float32

#define vb_float32   datum.float32

Definition at line 263 of file value.h.

vb_float64

#define vb_float64   datum.float64

Definition at line 264 of file value.h.

vb_group

#define vb_group   datum.children

Definition at line 244 of file value.h.

vb_ifid

#define vb_ifid   datum.ifid.addr

Definition at line 248 of file value.h.

vb_int16

#define vb_int16   datum.int16

Definition at line 259 of file value.h.

vb_int32

#define vb_int32   datum.int32

Definition at line 260 of file value.h.

vb_int64

#define vb_int64   datum.int64

Definition at line 261 of file value.h.

vb_int8

#define vb_int8   datum.int8

Definition at line 258 of file value.h.

vb_ip

#define vb_ip   datum.ip

Definition at line 246 of file value.h.

vb_length

#define vb_length   datum.length

Definition at line 272 of file value.h.

vb_octets

#define vb_octets   datum.octets

Definition at line 242 of file value.h.

vb_should_free

#define vb_should_free

(

_action

)

((_action & FR_VALUE_BOX_LIST_FREE_BOX) == FR_VALUE_BOX_LIST_FREE_BOX)

Definition at line 224 of file value.h.

vb_should_free_value

#define vb_should_free_value

(

_action

)

((_action & FR_VALUE_BOX_LIST_FREE_BOX_VALUE) == FR_VALUE_BOX_LIST_FREE_BOX_VALUE)

Definition at line 225 of file value.h.

vb_should_remove

#define vb_should_remove

(

_action

)

((_action & FR_VALUE_BOX_LIST_REMOVE) == FR_VALUE_BOX_LIST_REMOVE)

Definition at line 226 of file value.h.

vb_size

#define vb_size   datum.size

Definition at line 268 of file value.h.

vb_strvalue

#define vb_strvalue   datum.strvalue

Definition at line 241 of file value.h.

vb_time_delta

#define vb_time_delta   datum.time_delta

Definition at line 270 of file value.h.

vb_timeval

#define vb_timeval   datum.timeval

Definition at line 269 of file value.h.

vb_uint128

#define vb_uint128   datum.uint128

Definition at line 256 of file value.h.

vb_uint16

#define vb_uint16   datum.uint16

Definition at line 253 of file value.h.

vb_uint32

#define vb_uint32   datum.uint32

Definition at line 254 of file value.h.

vb_uint64

#define vb_uint64   datum.uint64

Definition at line 255 of file value.h.

vb_uint8

#define vb_uint8   datum.uint8

Definition at line 252 of file value.h.

vb_void

#define vb_void   datum.ptr

Definition at line 243 of file value.h.

Typedef Documentation

fr_value_box_escape_t

typedef int(* fr_value_box_escape_t) (fr_value_box_t *vb, void *uctx)

Escape a value box.

Parameters

[in]	vb	to escape.
[in]	uctx	user context to pass to the escape function.

Returns

• 0 on success.
• -1 on failure.

Definition at line 651 of file value.h.

fr_value_box_safe_for_t

typedef uintptr_t fr_value_box_safe_for_t

Escaping that's been applied to a value box.

This should be a unique value for each dialect being escaped. If the value is 0, then the box is not escaped. If the escaped value matches the escaped value of the function performing the escaping then it should not be re-escaped.

Definition at line 155 of file value.h.

fr_value_box_t

typedef struct value_box_s fr_value_box_t

Definition at line 1 of file value.h.

Enumeration Type Documentation

fr_value_box_list_action_t

enum fr_value_box_list_action_t

Actions to perform when we process a box in a list.

Enumerator
FR_VALUE_BOX_LIST_NONE	Do nothing to processed boxes.
FR_VALUE_BOX_LIST_REMOVE	Remove the box from the input list.
FR_VALUE_BOX_LIST_FREE_BOX	Free each processed box.
FR_VALUE_BOX_LIST_FREE_BOX_VALUE	Explicitly free any value buffers associated with a box.
FR_VALUE_BOX_LIST_FREE

Definition at line 215 of file value.h.

Function Documentation

_fr_value_box_alloc()

static fr_value_box_t* _fr_value_box_alloc ( NDEBUG_LOCATION_ARGS TALLOC_CTX *  ctx, fr_type_t  type, fr_dict_attr_t const *  enumv  )

inlinestatic

Definition at line 596 of file value.h.

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_fr_value_box_init()

static always_inline void _fr_value_box_init ( NDEBUG_LOCATION_ARGS fr_value_box_t *  vb, fr_type_t  type, fr_dict_attr_t const *  enumv, bool  tainted  )

inlinestatic

Definition at line 513 of file value.h.

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_fr_value_box_mark_safe_for()

void _fr_value_box_mark_safe_for	(	fr_value_box_t *	box,
		fr_value_box_safe_for_t	safe_for
	)

Mark a value-box as "safe", of a particular type.

Definition at line 6292 of file value.c.

format()

int format	(	printf	,
		5	,
		0
	)

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fr_value_box_acopy()

static fr_value_box_t* fr_value_box_acopy ( TALLOC_CTX *  ctx, fr_value_box_t const *  src  )

inlinestatic

Copy an existing box, allocating a new box to hold its contents.

Parameters

[in]	ctx	to allocate new box in.
[in]	src	box to copy.

Definition at line 711 of file value.h.

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fr_value_box_aprint()

static fr_slen_t fr_value_box_aprint ( TALLOC_CTX *  ctx, char **  out, fr_value_box_t const *  data, fr_sbuff_escape_rules_t const *  e_rules  )

inlinestatic

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fr_value_box_aprint_quoted()

static fr_slen_t static e_rules fr_slen_t fr_value_box_aprint_quoted ( TALLOC_CTX *  ctx, char **  out, fr_value_box_t const *  data, fr_token_t  quote  )

inlinestatic

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fr_value_box_asprintf()

int fr_value_box_asprintf	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		bool	tainted,
		char const *	fmt,
			...
	)

fr_value_box_bstr_alloc()

int fr_value_box_bstr_alloc	(	TALLOC_CTX *	ctx,
		char **	out,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		size_t	len,
		bool	tainted
	)

Alloc and assign an empty \0 terminated string to a fr_value_box_t.

Parameters

[in]	ctx	to allocate any new buffers in.
[out]	out	if non-null where to write a pointer to the new buffer.
[in]	dst	to assign new buffer to.
[in]	enumv	Aliases for values.
[in]	len	of buffer to allocate.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4071 of file value.c.

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fr_value_box_bstr_append_buffer()

int fr_value_box_bstr_append_buffer	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		char const *	src,
		bool	tainted
	)

Append a talloced buffer to an existing fr_value_box_t.

Parameters

[in]	ctx	Where to allocate any talloc buffers required.
[in]	dst	value box to append to.
[in]	src	string data to append.
[in]	tainted	Whether src is tainted.

Returns

• 0 on success.
  • -1 on failure.

Definition at line 4337 of file value.c.

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fr_value_box_bstr_realloc()

int fr_value_box_bstr_realloc	(	TALLOC_CTX *	ctx,
		char **	out,
		fr_value_box_t *	dst,
		size_t	len
	)

Change the length of a buffer already allocated to a value box.

Note

Do not use on an uninitialised box.

Parameters

[in]	ctx	to realloc buffer in.
[out]	out	if non-null where to write a pointer to the new buffer.
[in]	dst	to realloc buffer for.
[in]	len	to realloc to (don't include nul byte).

Returns

• 0 on success.
  • -1 on failure.

Definition at line 4104 of file value.c.

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fr_value_box_bstrdup_buffer()

int fr_value_box_bstrdup_buffer	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		char const *	src,
		bool	tainted
	)

Copy a nul terminated talloced buffer to a fr_value_box_t.

Copy a talloced nul terminated buffer, setting fields in the dst value box appropriately.

The buffer must be \0 terminated, or an error will be returned.

Parameters

[in]	ctx	to allocate any new buffers in.
[in]	dst	to assign new buffer to.
[in]	enumv	Aliases for values.
[in]	src	a talloced nul terminated buffer.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4208 of file value.c.

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fr_value_box_bstrdup_buffer_shallow()

int fr_value_box_bstrdup_buffer_shallow	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		char const *	src,
		bool	tainted
	)

Assign a talloced buffer containing a nul terminated string to a box, but don't copy it.

Adds a reference to the src buffer so that it cannot be freed until the ctx is freed.

Parameters

[in]	ctx	to add reference from. If NULL no reference will be added.
[in]	dst	to assign string to.
[in]	enumv	Aliases for values.
[in]	src	to copy string from.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4253 of file value.c.

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fr_value_box_bstrn_append()

int fr_value_box_bstrn_append	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		char const *	src,
		size_t	len,
		bool	tainted
	)

Append bytes from a buffer to an existing fr_value_box_t.

Parameters

[in]	ctx	Where to allocate any talloc buffers required.
[in]	dst	value box to append to.
[in]	src	octets data to append.
[in]	len	length of octets data.
[in]	tainted	Whether src is tainted.

Returns

• 0 on success.
  • -1 on failure.

Definition at line 4284 of file value.c.

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fr_value_box_bstrndup()

int fr_value_box_bstrndup	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		char const *	src,
		size_t	len,
		bool	tainted
	)

Copy a string to to a fr_value_box_t.

Parameters

[in]	ctx	to allocate any new buffers in.
[in]	dst	to assign buffer to.
[in]	enumv	Aliases for values.
[in]	src	a string. May be NULL only if len == 0.
[in]	len	of src.
[in]	tainted	Whether the value came from a trusted source.

Definition at line 4148 of file value.c.

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fr_value_box_bstrndup_dbuff()

int fr_value_box_bstrndup_dbuff	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		fr_dbuff_t *	dbuff,
		size_t	len,
		bool	tainted
	)

Definition at line 4172 of file value.c.

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fr_value_box_bstrndup_shallow()

void fr_value_box_bstrndup_shallow	(	fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		char const *	src,
		size_t	len,
		bool	tainted
	)

Assign a string to to a fr_value_box_t.

Parameters

[in]	dst	to assign new buffer to.
[in]	enumv	Aliases for values.
[in]	src	a string.
[in]	len	of src.
[in]	tainted	Whether the value came from a trusted source.

Definition at line 4232 of file value.c.

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fr_value_box_cast()

int fr_value_box_cast	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_type_t	dst_type,
		fr_dict_attr_t const *	dst_enumv,
		fr_value_box_t const *	src
	)

Convert one type of fr_value_box_t to another.

This should be the canonical function used to convert between INTERNAL data formats.

If you want to convert from PRESENTATION format, use fr_value_box_from_substr.

Note

src and dst must not be the same box. We do not support casting in place.

Parameters

ctx	to allocate buffers in (usually the same as dst)
dst	Where to write result of casting.
dst_type	to cast to.
dst_enumv	Aliases for values contained within this fr_value_box_t. If fr_value_box_t is passed to fr_value_box_aprint names will be printed instead of actual value.
src	Input data.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3352 of file value.c.

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fr_value_box_cast_in_place()

int fr_value_box_cast_in_place	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	vb,
		fr_type_t	dst_type,
		fr_dict_attr_t const *	dst_enumv
	)

Convert one type of fr_value_box_t to another in place.

This should be the canonical function used to convert between INTERNAL data formats.

If you want to convert from PRESENTATION format, use fr_value_box_from_substr.

Parameters

ctx	to allocate buffers in (usually the same as dst)
vb	to cast.
dst_type	to cast to.
dst_enumv	Aliases for values contained within this fr_value_box_t. If fr_value_box_t is passed to fr_value_box_aprint names will be printed instead of actual value.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3572 of file value.c.

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fr_value_box_clear()

void fr_value_box_clear

(

fr_value_box_t *

data

)

Clear/free any existing value and metadata.

Note

Do not use on uninitialised memory.

Parameters

[in]

data

to clear.

Definition at line 3723 of file value.c.

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fr_value_box_clear_value()

void fr_value_box_clear_value

(

fr_value_box_t *

data

)

Clear/free any existing value.

Note

Do not use on uninitialised memory.

Parameters

[in]

data

to clear.

Definition at line 3681 of file value.c.

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fr_value_box_cmp()

int8_t fr_value_box_cmp	(	fr_value_box_t const *	a,
		fr_value_box_t const *	b
	)

Compare two values.

Parameters

[in]	a	Value to compare.
[in]	b	Value to compare.

Returns

• -1 if a is less than b.
• 0 if both are equal.
• 1 if a is more than b.
• < -1 on failure.

Definition at line 676 of file value.c.

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fr_value_box_cmp_op()

int fr_value_box_cmp_op	(	fr_token_t	op,
		fr_value_box_t const *	a,
		fr_value_box_t const *	b
	)

Compare two attributes using an operator.

Parameters

[in]	op	to use in comparison.
[in]	a	Value to compare.
[in]	b	Value to compare.

Returns

• 1 if true
• 0 if false
• -1 on failure.

Definition at line 929 of file value.c.

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fr_value_box_contains_secret()

static bool fr_value_box_contains_secret ( fr_value_box_t const *  box )

inlinestatic

Definition at line 1066 of file value.h.

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fr_value_box_copy()

int fr_value_box_copy	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		const fr_value_box_t *	src
	)

Copy value data verbatim duplicating any buffers.

Note

Will free any exiting buffers associated with the dst fr_value_box_t.

Parameters

ctx	To allocate buffers in.
dst	Where to copy value_box to.
src	Where to copy value_box from.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3740 of file value.c.

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fr_value_box_copy_shallow()

void fr_value_box_copy_shallow	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_value_box_t const *	src
	)

Perform a shallow copy of a value_box.

Like fr_value_box_copy, but does not duplicate the buffers of the src value_box.

For FR_TYPE_STRING and FR_TYPE_OCTETS adds a reference from ctx so that the buffer cannot be freed until the ctx is freed.

Parameters

[in]	ctx	to add reference from. If NULL no reference will be added.
[in]	dst	to copy value to.
[in]	src	to copy value from.

Definition at line 3834 of file value.c.

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fr_value_box_debug()

void fr_value_box_debug

(

fr_value_box_t const *

vb

)

Print the value of a box as info messages.

Note

Call directly from the debugger

Definition at line 6403 of file value.c.

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fr_value_box_escape_in_place()

int fr_value_box_escape_in_place	(	fr_value_box_t *	vb,
		fr_value_box_escape_t	escape,
		fr_value_box_safe_for_t	safe_for,
		void *	uctx
	)

Escape a single value box in place.

Note

Applies recursively to the children of group boxes.

Parameters

[in]	vb	to escape.
[in]	escape	function to apply to the value box.
[in]	safe_for	the escaped value to check value boxes again. box has an escaped value that matches, it will not be re-escaped.
[in]	uctx	user context to pass to the escape function.

Returns

• 0 on success.
• -1 on failure.

Definition at line 5945 of file value.c.

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fr_value_box_ethernet_addr()

static always_inline int fr_value_box_ethernet_addr ( fr_value_box_t *  dst, fr_dict_attr_t const *  enumv, fr_ethernet_t const *  src, bool  tainted  )

inlinestatic

Definition at line 823 of file value.h.

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fr_value_box_flatten()

void fr_value_box_flatten	(	TALLOC_CTX *	ctx,
		fr_value_box_list_t *	list,
		bool	steal,
		bool	free
	)

Removes a single layer of nesting, moving all children into the parent list.

Parameters

[in]	ctx	to reparent children in if steal is true.
[in]	list	to flatten.
[in]	steal	whether to change the talloc ctx of children.
[in]	free	whether to free any group boxes which have had their children removed.

Definition at line 6003 of file value.c.

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fr_value_box_from_network()

ssize_t fr_value_box_from_network	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_type_t	type,
		fr_dict_attr_t const *	enumv,
		fr_dbuff_t *	dbuff,
		size_t	len,
		bool	tainted
	)

Decode a fr_value_box_t from serialized binary data.

The general deserialization rules are:

• Octets are decoded in binary form (not hex).
• Strings are decoded without the trailing \0 byte. Strings must consist only of valid UTF8 chars.
• Integers are decoded big-endian.
• Bools are decoded using one byte, with value 0x00 (false) or 0x01 (true).
• Signed integers are decoded two's complement, with the MSB as the sign bit. Byte order is big-endian.
• Network addresses are decoded big-endian.
• IPv4 prefixes are decoded with 1 byte for the prefix, then 4 bytes of address.
• IPv6 prefixes are decoded with 1 byte for the scope_id, 1 byte for the prefix, and 16 bytes of address.
• Floats are decoded in IEEE-754 format with a big-endian byte order. We rely on the fact that the C standards require floats to be represented in IEEE-754 format in memory.

• Dates are decoded as 32bit unsigned UNIX timestamps.

  All of the dictionary rules are respected. string/octets can have a fixed length, or can have an 8/16-bit "length" prefix. If the enumv is not an array, then the input # len MUST be the correct size (not too large or small), otherwise an error is returned.

  If the enumv is an array, then the input must have the minimum length, and the number of bytes decoded is capped at the maximum length allowed to be decoded. This behavior allows the caller to decode an array of values simply by calling this function in a loop.

Parameters

[in]	ctx	Where to allocate any talloc buffers required.
[out]	dst	value_box to write the result to.
[in]	type	to decode data to.
[in]	enumv	Aliases for values.
[in]	dbuff	Binary data to decode.
[in]	len	Length of data to decode. For fixed length types we only decode complete values.
[in]	tainted	Whether the value came from a trusted source.

Returns

• >= 0 The number of bytes consumed.
• <0 - The negative offset where the error occurred.
• FR_VALUE_BOX_NET_OOM (negative value) - Out of memory.

Definition at line 1754 of file value.c.

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fr_value_box_from_str()

ssize_t fr_value_box_from_str	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_type_t	dst_type,
		fr_dict_attr_t const *	dst_enumv,
		char const *	in,
		size_t	inlen,
		fr_sbuff_unescape_rules_t const *	erules,
		bool	tainted
	)

Definition at line 5315 of file value.c.

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fr_value_box_from_substr()

ssize_t fr_value_box_from_substr	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_type_t	dst_type,
		fr_dict_attr_t const *	dst_enumv,
		fr_sbuff_t *	in,
		fr_sbuff_parse_rules_t const *	rules,
		bool	tainted
	)

Convert string value to a fr_value_box_t type.

Parameters

[in]	ctx	to alloc strings in.
[out]	dst	where to write parsed value.
[in,out]	dst_type	of value data to create/dst_type of value created.
[in]	dst_enumv	fr_dict_attr_t with string names for uint32 values.
[in]	in	sbuff to read data from.
[in]	rules	unescape and termination rules.
[in]	tainted	Whether the value came from a trusted source.

Returns

• >0 on success.
• <= 0 on parse error.

Definition at line 4802 of file value.c.

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fr_value_box_hash()

uint32_t fr_value_box_hash

(

fr_value_box_t const *

vb

)

Hash the contents of a value box.

Definition at line 6129 of file value.c.

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fr_value_box_hton()

static size_t char fr_sbuff_t size_t char quote int fr_value_box_hton	(	fr_value_box_t *	dst,
		fr_value_box_t const *	src
	)

Performs byte order reversal for types that need it.

Parameters

[in]	dst	Where to write the result. May be the same as src.
[in]	src	fr_value_box_t containing an uint32 value.

Returns

• 0 on success.
• -1 on failure.

Definition at line 1231 of file value.c.

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fr_value_box_increment()

void fr_value_box_increment

(

fr_value_box_t *

vb

)

Increment a boxed value.

Implements safe integer overflow.

Parameters

[in]

vb

to increment.

Definition at line 4648 of file value.c.

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fr_value_box_ipaddr()

int fr_value_box_ipaddr	(	fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		fr_ipaddr_t const *	ipaddr,
		bool	tainted
	)

Assign a fr_value_box_t value from an fr_ipaddr_t.

Automatically determines the type of the value box from the ipaddr address family and the length of the prefix field.

Parameters

[in]	dst	to assign ipaddr to.
[in]	enumv	Aliases for values.
[in]	ipaddr	to copy address from.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3630 of file value.c.

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fr_value_box_is_secret()

static bool fr_value_box_is_secret ( fr_value_box_t const *  box )

inlinestatic

Definition at line 1060 of file value.h.

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fr_value_box_is_truthy()

bool fr_value_box_is_truthy

(

fr_value_box_t const *

in

)

Check truthiness of values.

The casting rules for expressions / conditions are slightly
different than fr_value_box_cast().  Largely because that
function is used to parse configuration files, and parses "yes
/ no" and "true / false" strings, even if there's no
fr_dict_attr_t passed to it.

Definition at line 6326 of file value.c.

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fr_value_box_list_acopy()

int fr_value_box_list_acopy	(	TALLOC_CTX *	ctx,
		fr_value_box_list_t *	out,
		fr_value_box_list_t const *	in
	)

Do a full copy of a list of value boxes.

Parameters

[in]	ctx	to allocate boxes in.
[out]	out	Where to write the head of the new list.
[in]	in	boxes to copy.

Returns

• A duplicate list of value boxes, allocated in the context of 'ctx'
• NULL on error, or empty input list.

Definition at line 6158 of file value.c.

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fr_value_box_list_aprint()

char* fr_value_box_list_aprint	(	TALLOC_CTX *	ctx,
		fr_value_box_list_t const *	list,
		char const *	delim,
		fr_sbuff_escape_rules_t const *	e_rules
	)

Concatenate the string representations of a list of value boxes together.

Parameters

[in]	ctx	to allocate the buffer in.
[in]	list	of value boxes.
[in]	delim	to insert between value box values.
[in]	e_rules	to control escaping of the concatenated elements.

Returns

• NULL on error.
• The concatenation of the string values of the value box list on success.

Definition at line 6028 of file value.c.

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fr_value_box_list_aprint_secure()

char* fr_value_box_list_aprint_secure	(	TALLOC_CTX *	ctx,
		fr_value_box_list_t const *	list,
		char const *	delim,
		fr_sbuff_escape_rules_t const *	e_rules
	)

Concatenate the string representations of a list of value boxes together hiding "secret" values.

Parameters

[in]	ctx	to allocate the buffer in.
[in]	list	of value boxes.
[in]	delim	to insert between value box values.
[in]	e_rules	to control escaping of the concatenated elements.

Returns

• NULL on error.
• The concatenation of the string values of the value box list on success.

Definition at line 6078 of file value.c.

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fr_value_box_list_concat_as_octets()

ssize_t fr_value_box_list_concat_as_octets	(	bool *	tainted,
		bool *	secret,
		fr_dbuff_t *	dbuff,
		fr_value_box_list_t *	list,
		uint8_t const *	sep,
		size_t	sep_len,
		fr_value_box_list_action_t	proc_action,
		bool	flatten
	)

Concatenate a list of value boxes together.

All boxes will be removed from the list.

Parameters

[out]	tainted	If nonnull, will be set to true if any input boxes are tainted. bool pointed to must be initialised.
[out]	secret	If nonnull, will be set to true if any input boxes are secret.
[out]	dbuff	to write the result of the concatenation to.
[in]	list	to concatenate.
[in]	sep	Insert a separator between the values.
[in]	sep_len	Length of the separator.
[in]	proc_action	What to do with the boxes in the list once they've been processed.
[in]	flatten	If true and we encounter a FR_TYPE_GROUP, we concat the contents of its children together. If false, the contents will be cast to FR_TYPE_OCTETS.

Returns

• >=0 the number of bytes written to the sbuff.
• <0 how many additional bytes we would have needed to concat the next box.

Definition at line 5677 of file value.c.

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fr_value_box_list_concat_as_string()

ssize_t fr_value_box_list_concat_as_string	(	bool *	tainted,
		bool *	secret,
		fr_sbuff_t *	sbuff,
		fr_value_box_list_t *	list,
		char const *	sep,
		size_t	sep_len,
		fr_sbuff_escape_rules_t const *	e_rules,
		fr_value_box_list_action_t	proc_action,
		fr_value_box_safe_for_t	safe_for,
		bool	flatten
	)

Concatenate a list of value boxes together.

All boxes will be removed from the list.

Parameters

[out]	tainted	If nonnull, will be set to true if any input boxes are tainted. bool pointed to must be initialised.
[out]	secret	If nonnull, will be set to true if any input boxes are secret.
[out]	sbuff	to write the result of the concatenation to.
[in]	list	to concatenate.
[in]	sep	Insert a separator between the values.
[in]	sep_len	Length of the separator.
[in]	e_rules	To apply to FR_TYPE_STRING types. Is not currently applied to any other box type.
[in]	proc_action	What to do with the boxes in the list once they've been processed.
[in]	safe_for	if value has this safe_for value, don't apply the escape rules.
[in]	flatten	If true and we encounter a FR_TYPE_GROUP, we concat the contents of its children together. If false, the contents will be cast to FR_TYPE_STRING.

Returns

• >=0 the number of bytes written to the sbuff.
• <0 how many additional bytes we would have needed to concat the next box.

Definition at line 5584 of file value.c.

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fr_value_box_list_concat_in_place()

int fr_value_box_list_concat_in_place	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	out,
		fr_value_box_list_t *	list,
		fr_type_t	type,
		fr_value_box_list_action_t	proc_action,
		bool	flatten,
		size_t	max_size
	)

Concatenate a list of value boxes.

Note

Will automatically cast all fr_value_box_t to type specified.

Parameters

[in]	ctx	to allocate new value buffer in.
[out]	out	Where to write the resulting box.
[in]	list	to concatenate together.
[in]	type	May be FR_TYPE_STRING or FR_TYPE_OCTETS, no other types are supported.
[in]	proc_action	What to do with the boxes in the list once they've been processed.
[in]	flatten	If true and we encounter a FR_TYPE_GROUP, we concat the contents of its children together. If false, the contents will be cast to the given type.
[in]	max_size	of the value.

Returns

• 0 on success.
• -1 on failure.

Definition at line 5777 of file value.c.

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fr_value_box_list_debug()

void fr_value_box_list_debug

(

fr_value_box_list_t const *

head

)

Print a list of value boxes as info messages.

Note

Call directly from the debugger

Definition at line 6376 of file value.c.

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fr_value_box_list_escape_in_place()

int fr_value_box_list_escape_in_place	(	fr_value_box_list_t *	list,
		fr_value_box_escape_t	escape,
		fr_value_box_safe_for_t	safe_for,
		void *	uctx
	)

Escape a list of value boxes in place.

Note

Applies recursively to the children of group boxes.

on error, the list may be left in an inconsistent/partially escaped state.

Parameters

[in]	list	to escape.
[in]	escape	function to apply to the value box.
[in]	safe_for	the escaped value to check value boxes again. box has an escaped value that matches, it will not be re-escaped.
[in]	uctx	user context to pass to the escape function.

Returns

• 0 on success.
• -1 on failure.

Definition at line 5982 of file value.c.

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fr_value_box_list_len_min()

static bool fr_value_box_list_len_min ( fr_value_box_list_t const *  list, unsigned int  min  )

inlinestatic

Determines whether a list contains the number of boxes required.

Parameters

[in]	list	of value boxes.
[in]	min	The number of boxes required to return true.

Returns

• true if the list has at least min boxes.
• false if the list has fewer than min boxes.

Definition at line 677 of file value.h.

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fr_value_box_list_mark_safe_for()

void fr_value_box_list_mark_safe_for	(	fr_value_box_list_t *	list,
		fr_value_box_safe_for_t	safe_for
	)

Set the escaped flag for all value boxes in a list.

Note

Only operates on a single level.

Parameters

[in]	list	to operate on.
[in]	safe_for	value to set.

Definition at line 6313 of file value.c.

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fr_value_box_list_taint()

void fr_value_box_list_taint

(

fr_value_box_list_t *

head

)

Taint every list member (and their children)

Parameters

[in]

head

of list.

Definition at line 6202 of file value.c.

fr_value_box_list_tainted()

bool fr_value_box_list_tainted

(

fr_value_box_list_t const *

head

)

Check to see if any list members (or their children) are tainted.

Parameters

[in]

head

of list to check.

Returns

• true if a list member is tainted.
• false if no list members are tainted.

Definition at line 6186 of file value.c.

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fr_value_box_list_untaint()

void fr_value_box_list_untaint

(

fr_value_box_list_t *

head

)

Untaint every list member (and their children)

Parameters

[in]

head

of list.

Definition at line 6216 of file value.c.

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fr_value_box_list_verify()

void fr_value_box_list_verify	(	char const *	file,
		int	line,
		fr_value_box_list_t const *	list
	)

Definition at line 6284 of file value.c.

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fr_value_box_mark_unsafe()

void fr_value_box_mark_unsafe

(

fr_value_box_t *

vb

)

Mark a value-box as "unsafe".

This always succeeds, and there are no side effects.

Definition at line 6301 of file value.c.

fr_value_box_mem_alloc()

int fr_value_box_mem_alloc	(	TALLOC_CTX *	ctx,
		uint8_t **	out,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		size_t	len,
		bool	tainted
	)

Pre-allocate an octets buffer for filling by the caller.

Note

Buffer will not be zeroed, as it's assumed the caller will be filling it.

Parameters

[in]	ctx	to allocate any new buffers in.
[out]	out	If non-null will be filled with a pointer to the new buffer.
[in]	dst	to assign new buffer to.
[in]	enumv	Aliases for values.
[in]	len	of data in the buffer. If 0, a zero length talloc buffer will be alloced. dst->vb_octets will NOT be NULL. You should use the length field of the box to determine if any value is assigned.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4371 of file value.c.

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fr_value_box_mem_append()

int fr_value_box_mem_append	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		uint8_t const *	src,
		size_t	len,
		bool	tainted
	)

Append data to an existing fr_value_box_t.

Parameters

[in]	ctx	Where to allocate any talloc buffers required.
[in]	dst	value box to append to.
[in]	src	octets data to append.
[in]	len	length of octets data.
[in]	tainted	Whether src is tainted.

Returns

• 0 on success.
  • -1 on failure.

Definition at line 4587 of file value.c.

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fr_value_box_mem_append_buffer()

int fr_value_box_mem_append_buffer	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		uint8_t const *	src,
		bool	tainted
	)

Append a talloc buffer to an existing fr_value_box_t.

Parameters

[in]	ctx	Where to allocate any talloc buffers required.
[in]	dst	value box to append to.
[in]	src	octets data to append.
[in]	tainted	Whether src is tainted.

Returns

• 0 on success.
  • -1 on failure.

Definition at line 4637 of file value.c.

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fr_value_box_mem_realloc()

int fr_value_box_mem_realloc	(	TALLOC_CTX *	ctx,
		uint8_t **	out,
		fr_value_box_t *	dst,
		size_t	len
	)

Change the length of a buffer already allocated to a value box.

Note

Do not use on an uninitialised box.

Parameters

[in]	ctx	to realloc buffer in.
[out]	out	if non-null where to write a pointer to the new buffer.
[in]	dst	to realloc buffer for.
[in]	len	to realloc to.

Returns

• 0 on success.
  • -1 on failure.

Definition at line 4404 of file value.c.

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fr_value_box_memcpy_in()

static int fr_value_box_memcpy_in ( fr_value_box_t *  vb, void const *  in  )

inlinestatic

Copy a C value value to a value box.

This is useful when interacting with 3rd party libraries, and doing configuration parsing as it allows us to use standard parsing and casting functions and then emit the result as a C value.

The field pointed to by in must be of the same type as we use to represent the value boxe's value in its datum union, or at least the same size.

No checks are done to ensure this is the case, so if you get this wrong it'll lead to silent memory corruption.

Parameters

[in]	vb	destination value box, MUST already be initialized
[out]	in	C variable to read from

Returns

• 0 on success.
• -1 on failure.

Definition at line 798 of file value.h.

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fr_value_box_memcpy_out()

static int fr_value_box_memcpy_out ( void *  out, fr_value_box_t const *  vb  )

inlinestatic

Copy the value of a value box to a field in a C struct.

This is useful when interacting with 3rd party libraries, and doing configuration parsing as it allows us to use standard parsing and casting functions and then emit the result as a C value.

The field pointed to by out must be of the same type as we use to represent the value boxe's value in its datum union, or at least the same size.

No checks are done to ensure this is the case, so if you get this wrong it'll lead to silent memory corruption.

Parameters

[out]	out	Field in struct to write variable to.
[in]	vb	to copy value from.

Returns

• 0 on success.
• -1 on failure.

Definition at line 764 of file value.h.

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fr_value_box_memdup()

int fr_value_box_memdup	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		uint8_t const *	src,
		size_t	len,
		bool	tainted
	)

Copy a buffer to a fr_value_box_t.

Copy a buffer containing binary data, setting fields in the dst value box appropriately.

Parameters

[in]	ctx	to allocate any new buffers in.
[in]	dst	to assign new buffer to.
[in]	enumv	Aliases for values.
[in]	src	a buffer.
[in]	len	of data in the buffer. If 0, a zero length talloc buffer will be alloced. dst->vb_octets will NOT be NULL. You should use the length field of the box to determine if any value is assigned.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4468 of file value.c.

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fr_value_box_memdup_buffer()

int fr_value_box_memdup_buffer	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		uint8_t const *	src,
		bool	tainted
	)

Copy a talloced buffer to a fr_value_box_t.

Copy a buffer containing binary data, setting fields in the dst value box appropriately.

Parameters

[in]	ctx	to allocate any new buffers in.
[in]	dst	to assign new buffer to.
[in]	enumv	Aliases for values.
[in]	src	a buffer.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 4526 of file value.c.

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fr_value_box_memdup_buffer_shallow()

void fr_value_box_memdup_buffer_shallow	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		uint8_t const *	src,
		bool	tainted
	)

Assign a talloced buffer to a box, but don't copy it.

Adds a reference to the src buffer so that it cannot be freed until the ctx is freed.

Parameters

[in]	ctx	to allocate any new buffers in.
[in]	dst	to assign buffer to.
[in]	enumv	Aliases for values.
[in]	src	a talloced buffer.
[in]	tainted	Whether the value came from a trusted source.

Definition at line 4566 of file value.c.

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fr_value_box_memdup_dbuff()

int fr_value_box_memdup_dbuff	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		fr_dbuff_t *	dbuff,
		size_t	len,
		bool	tainted
	)

Definition at line 4493 of file value.c.

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fr_value_box_memdup_shallow()

void fr_value_box_memdup_shallow	(	fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		uint8_t const *	src,
		size_t	len,
		bool	tainted
	)

Assign a buffer to a box, but don't copy it.

Adds a reference to the src buffer so that it cannot be freed until the ctx is freed.

Caller should set dst->taint = true, where the value was acquired from an untrusted source.

Note

Will free any exiting buffers associated with the value box.

Parameters

[in]	dst	to assign buffer to.
[in]	enumv	Aliases for values.
[in]	src	a talloced buffer.
[in]	len	of buffer.
[in]	tainted	Whether the value came from a trusted source.

Definition at line 4548 of file value.c.

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fr_value_box_network_length()

size_t fr_value_box_network_length

(

fr_value_box_t const *

value

)

Get the size of the value held by the fr_value_box_t.

This is the length of the NETWORK presentation

Definition at line 1325 of file value.c.

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fr_value_box_print()

ssize_t fr_value_box_print	(	fr_sbuff_t *	out,
		fr_value_box_t const *	data,
		fr_sbuff_escape_rules_t const *	e_rules
	)

Print one boxed value to a string.

This function should primarily be used when a fr_value_box_t is being serialized in some non-standard way, i.e. as a value for a field in a database, in all other instances it's better to use fr_value_box_print_quoted.

Note

- this function does NOT respect tainting! The escaping rules are ONLY for escaping quotation characters, CR, LF, etc.

Parameters

[in]	out	Where to write the printed string.
[in]	data	Value box to print.
[in]	e_rules	To apply to FR_TYPE_STRING types, for escaping quotation characters only. Is not currently applied to any other box type.

Definition at line 5352 of file value.c.

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fr_value_box_print_quoted()

ssize_t fr_value_box_print_quoted	(	fr_sbuff_t *	out,
		fr_value_box_t const *	data,
		fr_token_t	quote
	)

Print one boxed value to a string with quotes (where needed)

Parameters

[in]	out	Where to write the printed string.
[in]	data	Value box to print.
[in]	quote	To apply to FR_TYPE_STRING types. Is not currently applied to any other box type.

Definition at line 5540 of file value.c.

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fr_value_box_raw()

static uint8_t* fr_value_box_raw ( fr_value_box_t const *  vb, fr_type_t  type  )

inlinestatic

Return a pointer to the "raw" value from a value-box.

This has "const" input and "unconst" output because sometimes it's used to copy out of, and sometimes in to, a value-box. We rely on the caller to know the correct uses of it.

Definition at line 740 of file value.h.

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fr_value_box_set_secret()

static void fr_value_box_set_secret ( fr_value_box_t *  box, bool  secret  )

inlinestatic

Definition at line 1080 of file value.h.

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fr_value_box_steal()

int fr_value_box_steal	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_value_box_t *	src
	)

Copy value data verbatim moving any buffers to the specified context.

Parameters

[in]	ctx	to allocate any new buffers in.
[in]	dst	to copy value to.
[in]	src	to copy value from.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3858 of file value.c.

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fr_value_box_strdup()

int fr_value_box_strdup	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		char const *	src,
		bool	tainted
	)

Copy a nul terminated string to a fr_value_box_t.

Parameters

[in]	ctx	to allocate any new buffers in.
[in]	dst	to assign new buffer to.
[in]	enumv	Aliases for values.
[in]	src	a nul terminated buffer.
[in]	tainted	Whether the value came from a trusted source.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3927 of file value.c.

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fr_value_box_strdup_shallow()

void fr_value_box_strdup_shallow	(	fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		char const *	src,
		bool	tainted
	)

Assign a buffer containing a nul terminated string to a box, but don't copy it.

Note

Input string will not be duplicated.

Parameters

[in]	dst	to assign string to.
[in]	enumv	Aliases for values.
[in]	src	to copy string from.
[in]	tainted	Whether the value came from a trusted source.

Definition at line 4036 of file value.c.

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fr_value_box_strdup_shallow_replace()

void fr_value_box_strdup_shallow_replace	(	fr_value_box_t *	vb,
		char const *	src,
		ssize_t	len
	)

Free the existing buffer (if talloced) associated with the valuebox, and replace it with a new one.

Note

Input string will not be duplicated.

Parameters

[in]	vb	to replace string in.
[in]	src	to assign string from.
[in]	len	of src.

Definition at line 4052 of file value.c.

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fr_value_box_strtrim()

int fr_value_box_strtrim	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	vb
	)

Trim the length of the string buffer to match the length of the C string.

Parameters

[in]	ctx	to re-alloc the buffer in.
[in,out]	vb	to trim.

Returns

• 0 on success.
• -1 on failure.

Definition at line 3953 of file value.c.

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fr_value_box_to_key()

int fr_value_box_to_key	(	uint8_t **	out,
		size_t *	outlen,
		fr_value_box_t const *	value
	)

Get a key from a value box.

Parameters

[in,out]	out	- set to a small buffer on input. If the callback has more data than is available here, the callback can update "out" to point elsewhere
[in,out]	outlen	The number of bits available in the initial buffer. On output, the number of bits available in the key
[in]	value	the value box which contains the key

Returns

• <0 on error
• 0 on success

Definition at line 2084 of file value.c.

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fr_value_box_to_network()

ssize_t fr_value_box_to_network	(	fr_dbuff_t *	dbuff,
		fr_value_box_t const *	value
	)

Encode a single value box, serializing its contents in generic network format.

The serialized form of fr_value_box_t may not match the requirements of your protocol completely. In cases where they do not, you should overload specific types in the function calling fr_value_box_to_network.

The general serialization rules are:

• Octets are encoded in binary form (not hex).
• Strings are encoded without the trailing \0 byte.
• Integers are encoded big-endian.
• Bools are encoded using one byte, with value 0x00 (false) or 0x01 (true).
• Signed integers are encoded two's complement, with the MSB as the sign bit. Byte order is big-endian.
• Network addresses are encoded big-endian.
• IPv4 prefixes are encoded with 1 byte for the prefix, then 4 bytes of address.
• IPv6 prefixes are encoded with 1 byte for the scope_id, 1 byte for the prefix, and 16 bytes of address.
• Floats are encoded in IEEE-754 format with a big-endian byte order. We rely on the fact that the C standards require floats to be represented in IEEE-754 format in memory.
• Dates are encoded as 16/32/64-bit unsigned UNIX timestamps.
• time_deltas are encoded as 16/32/64-bit signed integers.

FR_TYPE_SIZE is not encodable, as it is system specific.

This function will not encode structural types (TLVs, VSAs etc...). These are usually specific to the protocol anyway.

All of the dictionary rules are respected. string/octets can have a fixed length (which is zero-padded if necessary), or can have an 8/16-bit "length" prefix.

Parameters

[out]	dbuff	Where to write serialized data.
[in]	value	to encode.

Returns

• 0 no bytes were written.
• >0 the number of bytes written to out.
• <0 the number of bytes we'd need in dbuff to complete the operation.

Definition at line 1404 of file value.c.

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fr_value_box_vasprintf()

int fr_value_box_vasprintf	(	TALLOC_CTX *	ctx,
		fr_value_box_t *	dst,
		fr_dict_attr_t const *	enumv,
		bool	tainted,
		char const *	fmt,
		va_list	ap
	)

fr_value_box_verify()

void fr_value_box_verify	(	char const *	file,
		int	line,
		fr_value_box_t const *	vb
	)

Validation function to check that a fr_value_box_t is correctly initialised.

Definition at line 6229 of file value.c.

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fr_value_str_aunescape()

static size_t fr_value_str_aunescape ( TALLOC_CTX *  ctx, char **  out, fr_sbuff_t *  in, size_t  inlen, char  quote  )

inlinestatic

fr_value_str_unescape()

size_t fr_value_str_unescape	(	fr_sbuff_t *	out,
		fr_sbuff_t *	in,
		size_t	inlen,
		char	quote
	)

Convert a string value with escape sequences into its binary form.

The quote character determines the escape sequences recognised.

• Literal mode ("'" quote char) will unescape:

    - \\        - Literal backslash.
    - \<quote>  - The quotation char.
  

• Expanded mode ('"' quote char) will also unescape:

    - \a        - Alert.
    - \b        - Backspace.
    - \e        - Escape character i.e. (\‍)
    - \r        - Carriage return.
    - \n        - Newline.
    - \t        - Tab.
    - \v        - Vertical tab
    - \<oct>    - An octal escape sequence.
    - \x<hex>   - A hex escape sequence.
  

• Backtick mode ('‘’ quote char) identical to expanded mode.
• Regex mode ('/') identical to expanded mode but two successive backslashes will be interpreted as an escape sequence, but not unescaped, so that they will be passed to the underlying regex library.
• Verbatim mode ('\0' quote char) copies in to out verbatim.

Note

The resulting output may contain embedded \0s.

Unrecognised escape sequences will be copied verbatim.

In and out may point to the same underlying buffer.

Copying will stop early if an unescaped instance of the quoting char is found in the input buffer.

Parameters

[out]	out	Where to write the unescaped string.
[in]	in	The string to unescape.
[in]	inlen	Length of input string. Pass SIZE_MAX to copy all data in the input buffer.
[in]	quote	Character around the string, determines unescaping mode.

Returns

• 0 if input string was empty.
• >0 the number of bytes written to out.

Definition at line 1128 of file value.c.

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fr_value_substr_unescape()

size_t fr_value_substr_unescape	(	fr_sbuff_t *	out,
		fr_sbuff_t *	in,
		size_t	inlen,
		char	quote
	)

Convert a string value with escape sequences into its binary form.

The quote character determines the escape sequences recognised.

• Literal mode ("'" quote char) will unescape:

    - \\        - Literal backslash.
    - \<quote>  - The quotation char.
  

• Expanded mode ('"' quote char) will also unescape:

    - \a        - Alert.
    - \b        - Backspace.
    - \e        - Escape character i.e. (\‍)
    - \r        - Carriage return.
    - \n        - Newline.
    - \t        - Tab.
    - \v        - Vertical tab
    - \<oct>    - An octal escape sequence.
    - \x<hex>   - A hex escape sequence.
  

• Backtick mode ('‘’ quote char) identical to expanded mode.
• Regex mode ('/') identical to expanded mode but two successive backslashes will be interpreted as an escape sequence, but not unescaped, so that they will be passed to the underlying regex library.
• Verbatim mode ('\0' quote char) copies in to out verbatim.

Note

The resulting output may contain embedded \0s.

Unrecognised escape sequences will be copied verbatim.

In and out may point to the same underlying buffer.

Copying will stop early if an unescaped instance of the quoting char is found in the input buffer.

Parameters

[out]	out	Where to write the unescaped string.
[in]	in	The string to unescape.
[in]	inlen	Length of input string. Pass SIZE_MAX to copy all data in the input buffer.
[in]	quote	Character around the string, determines unescaping mode.

Returns

• 0 if input string was empty.
• >0 the number of bytes written to out.

Definition at line 1201 of file value.c.

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fr_value_unbox_ethernet_addr()

static int fr_value_unbox_ethernet_addr ( fr_ethernet_t *  dst, fr_value_box_t *  src  )

inlinestatic

Unbox an ethernet value (6 bytes, network byte order)

Parameters

[in]	dst	Where to copy the ethernet address to.
[in]	src	Where to copy the ethernet address from.

Returns

• 0 on success.
• -1 on type mismatch.

Definition at line 915 of file value.h.

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fr_value_unbox_ipaddr()

int fr_value_unbox_ipaddr	(	fr_ipaddr_t *	dst,
		fr_value_box_t *	src
	)

Unbox an IP address performing a type check.

Parameters

[out]	dst	Where to copy the IP address to.
[in]	src	Where to copy the IP address from.

Returns

• 0 on success.
• -1 on type mismatch.

Definition at line 3662 of file value.c.

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nonnull()

int nonnull	(	2	,
		5
	)

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Variable Documentation

data

static fr_slen_t static e_rules fr_slen_t data

Definition at line 1265 of file value.h.

fr_value_box_field_sizes

size_t const fr_value_box_field_sizes[]

extern

How many bytes wide each of the value data fields are.

This is useful when copying a value from a fr_value_box_t to a memory location passed as a void *.

Definition at line 149 of file value.c.

fr_value_box_offsets

size_t const fr_value_box_offsets[]

extern

Where the value starts in the fr_value_box_t.

Definition at line 189 of file value.c.

fr_value_escape_backtick

fr_sbuff_escape_rules_t fr_value_escape_backtick

extern

Definition at line 419 of file value.c.

fr_value_escape_by_char

fr_sbuff_escape_rules_t* fr_value_escape_by_char[UINT8_MAX+1]

extern

Definition at line 448 of file value.c.

fr_value_escape_by_quote

fr_sbuff_escape_rules_t* fr_value_escape_by_quote[T_TOKEN_LAST]

extern

Definition at line 441 of file value.c.

fr_value_escape_double

fr_sbuff_escape_rules_t fr_value_escape_double

extern

Definition at line 350 of file value.c.

fr_value_escape_secret

fr_sbuff_escape_rules_t fr_value_escape_secret

extern

Escape secret fields by simply mashing all data to '.

'

The length of the secret still leaks, but that is likely fine. Fixing that is more work.

Definition at line 381 of file value.c.

fr_value_escape_single

fr_sbuff_escape_rules_t fr_value_escape_single

extern

Definition at line 388 of file value.c.

fr_value_escape_solidus

fr_sbuff_escape_rules_t fr_value_escape_solidus

extern

Definition at line 398 of file value.c.

fr_value_escape_unprintables

fr_sbuff_escape_rules_t fr_value_escape_unprintables

extern

Definition at line 455 of file value.c.

fr_value_unescape_backtick

fr_sbuff_unescape_rules_t fr_value_unescape_backtick

extern

Definition at line 317 of file value.c.

fr_value_unescape_by_char

fr_sbuff_unescape_rules_t* fr_value_unescape_by_char[UINT8_MAX+1]

extern

Definition at line 343 of file value.c.

fr_value_unescape_by_quote

fr_sbuff_unescape_rules_t* fr_value_unescape_by_quote[T_TOKEN_LAST]

extern

Definition at line 336 of file value.c.

fr_value_unescape_double

fr_sbuff_unescape_rules_t fr_value_unescape_double

extern

Definition at line 266 of file value.c.

fr_value_unescape_single

fr_sbuff_unescape_rules_t fr_value_unescape_single

extern

Definition at line 285 of file value.c.

fr_value_unescape_solidus

fr_sbuff_unescape_rules_t fr_value_unescape_solidus

extern

Definition at line 296 of file value.c.

in

size_t char fr_sbuff_t* in

Definition at line 997 of file value.h.

inlen

size_t char fr_sbuff_t size_t inlen

Definition at line 997 of file value.h.

out

size_t char** out

Definition at line 997 of file value.h.

value_parse_rules_3quoted

fr_sbuff_parse_rules_t const* value_parse_rules_3quoted[T_TOKEN_LAST]

extern

Definition at line 622 of file value.c.

value_parse_rules_backtick_3quoted

fr_sbuff_parse_rules_t const value_parse_rules_backtick_3quoted

extern

Definition at line 592 of file value.c.

value_parse_rules_backtick_quoted

fr_sbuff_parse_rules_t const value_parse_rules_backtick_quoted

extern

Definition at line 565 of file value.c.

value_parse_rules_backtick_unquoted

fr_sbuff_parse_rules_t const value_parse_rules_backtick_unquoted

extern

Definition at line 496 of file value.c.

value_parse_rules_bareword_quoted

fr_sbuff_parse_rules_t const value_parse_rules_bareword_quoted

extern

Definition at line 524 of file value.c.

value_parse_rules_bareword_unquoted

fr_sbuff_parse_rules_t const value_parse_rules_bareword_unquoted

extern

Default formatting rules.

Control token termination, escaping and how the tmpl is printed.

Definition at line 480 of file value.c.

value_parse_rules_double_3quoted

fr_sbuff_parse_rules_t const value_parse_rules_double_3quoted

extern

Definition at line 574 of file value.c.

value_parse_rules_double_quoted

fr_sbuff_parse_rules_t const value_parse_rules_double_quoted

extern

Definition at line 547 of file value.c.

value_parse_rules_double_unquoted

fr_sbuff_parse_rules_t const value_parse_rules_double_unquoted

extern

Definition at line 484 of file value.c.

value_parse_rules_quoted

fr_sbuff_parse_rules_t const* value_parse_rules_quoted[T_TOKEN_LAST]

extern

Parse rules for quoted strings.

These parse rules should be used for internal parsing functions that are working with configuration files.

They include appropriate quote terminals to force functions parsing quoted strings to return when they reach a quote character.

Definition at line 606 of file value.c.

value_parse_rules_quoted_char

fr_sbuff_parse_rules_t const* value_parse_rules_quoted_char[UINT8_MAX]

extern

Definition at line 614 of file value.c.

value_parse_rules_single_3quoted

fr_sbuff_parse_rules_t const value_parse_rules_single_3quoted

extern

Definition at line 580 of file value.c.

value_parse_rules_single_quoted

fr_sbuff_parse_rules_t const value_parse_rules_single_quoted

extern

Definition at line 553 of file value.c.

value_parse_rules_single_unquoted

fr_sbuff_parse_rules_t const value_parse_rules_single_unquoted

extern

Definition at line 488 of file value.c.

value_parse_rules_solidus_3quoted

fr_sbuff_parse_rules_t const value_parse_rules_solidus_3quoted

extern

Definition at line 586 of file value.c.

value_parse_rules_solidus_quoted

fr_sbuff_parse_rules_t const value_parse_rules_solidus_quoted

extern

Definition at line 559 of file value.c.

value_parse_rules_solidus_unquoted

fr_sbuff_parse_rules_t const value_parse_rules_solidus_unquoted

extern

Definition at line 492 of file value.c.

value_parse_rules_unquoted

fr_sbuff_parse_rules_t const* value_parse_rules_unquoted[T_TOKEN_LAST]

extern

Parse rules for non-quoted strings.

These parse rules should be used for processing escape sequences in data from external data sources like SQL databases and REST APIs.

They do not include terminals to stop parsing as it assumes the values are discrete, and not wrapped in quotes.

Definition at line 508 of file value.c.

value_parse_rules_unquoted_char

fr_sbuff_parse_rules_t const* value_parse_rules_unquoted_char[UINT8_MAX]

extern

Definition at line 516 of file value.c.