util.h File Reference

#include <stdint.h>
#include <stdlib.h>
#include <alloca.h>
#include <byteswap.h>
#include <string.h>

Go to the source code of this file.

Macros
#define	le16_to_cpu(val)   (val)
#define	le32_to_cpu(val)   (val)
#define	le64_to_cpu(val)   (val)
#define	cpu_to_le16(val)   (val)
#define	cpu_to_le32(val)   (val)
#define	cpu_to_le64(val)   (val)
#define	be16_to_cpu(val)   bswap_16(val)
#define	be32_to_cpu(val)   bswap_32(val)
#define	be64_to_cpu(val)   bswap_64(val)
#define	cpu_to_be16(val)   bswap_16(val)
#define	cpu_to_be32(val)   bswap_32(val)
#define	cpu_to_be64(val)   bswap_64(val)
#define	get_unaligned(ptr)
#define	put_unaligned(val, ptr)
#define	PTR_TO_UINT(p)   ((unsigned int) ((uintptr_t) (p)))
#define	UINT_TO_PTR(u)   ((void *) ((uintptr_t) (u)))
#define	PTR_TO_INT(p)   ((int) ((intptr_t) (p)))
#define	INT_TO_PTR(u)   ((void *) ((intptr_t) (u)))
#define	new0(t, n)   ((t*) calloc((n), sizeof(t)))
#define	newa(t, n)   ((t*) alloca(sizeof(t)*(n)))
#define	malloc0(n)   (calloc((n), 1))

Typedefs
typedef void(*	util_debug_func_t )(const char *str, void *user_data)

Functions
void	util_debug (util_debug_func_t function, void *user_data, const char *format,...) __attribute__((format(printf
void void	util_hexdump (const char dir, const unsigned char *buf, size_t len, util_debug_func_t function, void *user_data)
unsigned char	util_get_dt (const char *parent, const char *name)
uint8_t	util_get_uid (unsigned int *bitmap, uint8_t max)
void	util_clear_uid (unsigned int *bitmap, uint8_t id)
static uint16_t	get_le16 (const void *ptr)
static uint16_t	get_be16 (const void *ptr)
static uint32_t	get_le32 (const void *ptr)
static uint32_t	get_be32 (const void *ptr)
static uint64_t	get_le64 (const void *ptr)
static uint64_t	get_be64 (const void *ptr)
static void	put_le16 (uint16_t val, void *dst)
static void	put_be16 (uint16_t val, const void *ptr)
static void	put_le32 (uint32_t val, void *dst)
static void	put_be32 (uint32_t val, void *dst)
static void	put_le64 (uint64_t val, void *dst)
static void	put_be64 (uint64_t val, void *dst)

Macro Definition Documentation

#define be16_to_cpu

(

val

)

bswap_16(val)

Definition at line 37 of file util.h.

Referenced by get_be16().

#define be32_to_cpu

(

val

)

bswap_32(val)

Definition at line 38 of file util.h.

Referenced by get_be32().

#define be64_to_cpu

(

val

)

bswap_64(val)

Definition at line 39 of file util.h.

Referenced by get_be64().

#define cpu_to_be16

(

val

)

bswap_16(val)

Definition at line 40 of file util.h.

Referenced by put_be16().

#define cpu_to_be32

(

val

)

bswap_32(val)

Definition at line 41 of file util.h.

Referenced by put_be32().

#define cpu_to_be64

(

val

)

bswap_64(val)

Definition at line 42 of file util.h.

Referenced by put_be64().

#define cpu_to_le16

(

val

)

(val)

Definition at line 34 of file util.h.

Referenced by put_le16().

#define cpu_to_le32

(

val

)

(val)

Definition at line 35 of file util.h.

Referenced by put_le32().

#define cpu_to_le64

(

val

)

(val)

Definition at line 36 of file util.h.

Referenced by put_le64().

#define get_unaligned

(

ptr

)

Value:

__extension__ ({                \
    struct __attribute__((packed)) {    \
        __typeof__(*(ptr)) __v;     \
    } *__p = (__typeof__(__p)) (ptr);   \
    __p->__v;               \
})

Definition at line 60 of file util.h.

Referenced by get_be16(), get_be32(), get_be64(), get_le16(), get_le32(), and get_le64().

#define INT_TO_PTR

(

u

)

((void *) ((intptr_t) (u)))

Definition at line 80 of file util.h.

Referenced by disconnect_cb().

#define le16_to_cpu

(

val

)

(val)

Definition at line 31 of file util.h.

Referenced by get_le16().

#define le32_to_cpu

(

val

)

(val)

Definition at line 32 of file util.h.

Referenced by get_le32().

#define le64_to_cpu

(

val

)

(val)

Definition at line 33 of file util.h.

Referenced by get_le64().

#define malloc0

(

n

)

(calloc((n), 1))

Definition at line 84 of file util.h.

Referenced by new_attribute().

#define new0	(		t,
			n
	)		((t*) calloc((n), sizeof(t)))

Definition at line 82 of file util.h.

Referenced by bt_att_new(), bt_att_register(), bt_att_register_disconnect(), bt_crypto_new(), bt_gatt_client_new(), bt_gatt_client_read_long_value(), bt_gatt_client_read_multiple(), bt_gatt_client_read_value(), bt_gatt_client_write_execute(), bt_gatt_client_write_long_value(), bt_gatt_client_write_value(), bt_gatt_discover_characteristics(), bt_gatt_discover_descriptors(), bt_gatt_discover_included_services(), bt_gatt_exchange_mtu(), bt_gatt_read_by_type(), can_write_data(), client_create(), create_att_send_op(), discover_chrcs_cb(), discover_services(), discovery_op_create(), gatt_db_attribute_read(), gatt_db_attribute_write(), gatt_db_new(), gatt_db_register(), gatt_db_service_create(), get_reliable_request(), io_new(), new_attribute(), new_read_included(), notify_chrc_create(), queue_entry_new(), queue_new(), register_notify(), request_create(), result_create(), service_changed_cb(), and sign_set_key().

#define newa	(		t,
			n
	)		((t*) alloca(sizeof(t)*(n)))

Definition at line 83 of file util.h.

#define PTR_TO_INT

(

p

)

((int) ((intptr_t) (p)))

Definition at line 79 of file util.h.

Referenced by disconn_handler().

#define PTR_TO_UINT

(

p

)

((unsigned int) ((uintptr_t) (p)))

Definition at line 76 of file util.h.

Referenced by find_pending(), find_service_for_handle(), match_disconn_id(), match_notify_chrc_value_handle(), match_notify_data_id(), match_notify_id(), match_op_id(), and match_req_id().

#define put_unaligned	(		val,
			ptr
	)

Value:

do {                        \
    struct __attribute__((packed)) {    \
        __typeof__(*(ptr)) __v;     \
    } *__p = (__typeof__(__p)) (ptr);   \
    __p->__v = (val);           \
} while (0)

Definition at line 68 of file util.h.

Referenced by put_be16(), put_be32(), put_be64(), put_le16(), put_le32(), and put_le64().

#define UINT_TO_PTR

(

u

)

((void *) ((uintptr_t) (u)))

Definition at line 77 of file util.h.

Referenced by bt_att_cancel(), bt_att_unregister(), bt_att_unregister_disconnect(), bt_gatt_client_cancel(), bt_gatt_client_unregister_notify(), bt_gatt_client_write_execute(), gatt_db_attribute_read_result(), gatt_db_attribute_write_result(), gatt_db_get_attribute(), gatt_db_unregister(), get_reliable_request(), and register_notify().

Typedef Documentation

typedef void(* util_debug_func_t)(const char *str, void *user_data)

Definition at line 86 of file util.h.

Function Documentation

static uint16_t get_be16 ( const void *  ptr )

inlinestatic

Definition at line 105 of file util.h.

References be16_to_cpu, and get_unaligned.

static uint32_t get_be32 ( const void *  ptr )

inlinestatic

Definition at line 115 of file util.h.

References be32_to_cpu, and get_unaligned.

static uint64_t get_be64 ( const void *  ptr )

inlinestatic

Definition at line 125 of file util.h.

References be64_to_cpu, and get_unaligned.

static uint16_t get_le16 ( const void *  ptr )

inlinestatic

Definition at line 100 of file util.h.

References get_unaligned, and le16_to_cpu.

Referenced by bt_gatt_iter_next_characteristic(), bt_gatt_iter_next_descriptor(), bt_gatt_iter_next_included_service(), bt_gatt_iter_next_read_by_type(), bt_gatt_iter_next_service(), discover_chrcs_cb(), discover_descs_cb(), discover_included_cb(), find_by_type_val_cb(), gatt_db_attribute_get_char_data(), gatt_db_attribute_get_incl_data(), gatt_db_attribute_get_service_uuid(), le_to_uuid(), mtu_cb(), notify_handler(), prepare_write_cb(), read_by_grp_type_cb(), read_by_type_cb(), read_included_cb(), and service_changed_cb().

static uint32_t get_le32 ( const void *  ptr )

inlinestatic

Definition at line 110 of file util.h.

References get_unaligned, and le32_to_cpu.

Referenced by bt_crypto_g2(), handle_signed(), and le_to_uuid().

static uint64_t get_le64 ( const void *  ptr )

inlinestatic

Definition at line 120 of file util.h.

References get_unaligned, and le64_to_cpu.

static void put_be16 ( uint16_t  val, const void *  ptr  )

inlinestatic

Definition at line 135 of file util.h.

References cpu_to_be16, and put_unaligned.

static void put_be32 ( uint32_t  val, void *  dst  )

inlinestatic

Definition at line 145 of file util.h.

References cpu_to_be32, and put_unaligned.

Referenced by bt_crypto_sign_att().

static void put_be64 ( uint64_t  val, void *  dst  )

inlinestatic

Definition at line 155 of file util.h.

References cpu_to_be64, and put_unaligned.

static void put_le16 ( uint16_t  val, void *  dst  )

inlinestatic

Definition at line 130 of file util.h.

References cpu_to_le16, and put_unaligned.

Referenced by bt_att_send_error_rsp(), bt_gatt_client_prepare_write(), bt_gatt_client_read_long_value(), bt_gatt_client_read_multiple(), bt_gatt_client_read_value(), bt_gatt_client_write_long_value(), bt_gatt_client_write_value(), bt_gatt_client_write_without_response(), bt_gatt_discover_characteristics(), bt_gatt_discover_descriptors(), bt_gatt_discover_included_services(), bt_gatt_exchange_mtu(), bt_gatt_read_by_type(), discover_chrcs_cb(), discover_descs_cb(), discover_included_cb(), discover_services(), find_by_type_val_cb(), gatt_db_service_add_included(), handle_next_prep_write(), notify_data_write_ccc(), read_by_grp_type_cb(), read_by_type_cb(), read_included_cb(), read_long_cb(), service_insert_characteristic(), and uuid_to_le().

static void put_le32 ( uint32_t  val, void *  dst  )

inlinestatic

Definition at line 140 of file util.h.

References cpu_to_le32, and put_unaligned.

Referenced by bt_crypto_sign_att().

static void put_le64 ( uint64_t  val, void *  dst  )

inlinestatic

Definition at line 150 of file util.h.

References cpu_to_le64, and put_unaligned.

void util_clear_uid	(	unsigned int *	bitmap,
		uint8_t	id
	)

Clear id bit in bitmap

Parameters

bitmap	map of bits
id	bit rank to clear

Definition at line 172 of file util.c.

void util_debug	(	util_debug_func_t	function,
		void *	user_data,
		const char *	format,
			...
	)

unsigned char util_get_dt	(	const char *	parent,
		const char *	name
	)

Helper for getting the dirent type in case readdir

Parameters

parent	prefix to build full path
name	suffix to builld full path

Returns

DT_UNKNOWN or DT_DIR if parent/name is a DIR

Definition at line 130 of file util.c.

uint8_t util_get_uid	(	unsigned int *	bitmap,
		uint8_t	max
	)

Helpers for bitfield operations

Find unique id in range from 1 to max but no bigger then sizeof(int) * 8. ffs() is used since it is POSIX standard

Parameters

bitmap	map of bits
max	max bit position

Returns

Definition at line 152 of file util.c.

void void util_hexdump	(	const char	dir,
		const unsigned char *	buf,
		size_t	len,
		util_debug_func_t	function,
		void *	user_data
	)

hexadecimal dump utility: create the str hex string and then call function(str,user_data)

Parameters

dir	first char of str
buf	buffer to convert to hex (str)
len	size of buffer (should be less than or equal to 16)
function	function to call with (str,user_data)
user_data	pointer to pass to function

Definition at line 81 of file util.c.

References timeout_data::user_data.

Referenced by can_read_data(), and can_write_data().