aliro_uwb_msg_parser.c File Reference

— TLV attribute parser and big-endian reads. More...

#include "aliro_uwb_msg_parser.h"
#include "woz_log.h"

Include dependency graph for aliro_uwb_msg_parser.c:

Functions
struct aliro_uwb_msg_attribute *	aliro_uwb_msg_next_attribute (struct aliro_uwb_msg_parser *parser)
	Parses the next TLV attribute from the message payload; returns NULL if offset exceeds declared message length, clamping to prevent overrun.
static bool	read_be (const struct aliro_uwb_msg_attribute *attr, const char *name, uint8_t width, uint64_t *out)
	Decodes a big-endian fixed-width integer from an attribute; returns false if declared length does not match width or on parse error.
bool	aliro_uwb_msg_read_u8 (const struct aliro_uwb_msg_attribute *attr, const char *name, uint8_t *out)
	Decodes an 8-bit big-endian integer from an attribute; returns false on width mismatch or parse error.
bool	aliro_uwb_msg_read_u16 (const struct aliro_uwb_msg_attribute *attr, const char *name, uint16_t *out)
	Decodes a 16-bit big-endian integer from an attribute; returns false on width mismatch or parse error.
bool	aliro_uwb_msg_read_u32 (const struct aliro_uwb_msg_attribute *attr, const char *name, uint32_t *out)
	Decodes a 32-bit big-endian integer from an attribute; returns false on width mismatch or parse error.
bool	aliro_uwb_msg_read_u64 (const struct aliro_uwb_msg_attribute *attr, const char *name, uint64_t *out)
	Decodes a 64-bit big-endian integer from an attribute.

Detailed Description

— TLV attribute parser and big-endian reads.

Function Documentation

aliro_uwb_msg_next_attribute()

struct aliro_uwb_msg_attribute * aliro_uwb_msg_next_attribute

(

struct aliro_uwb_msg_parser *

parser

)

Parses the next TLV attribute from the message payload; returns NULL if offset exceeds declared message length, clamping to prevent overrun.

Advance to the next attribute; NULL at end-of-payload or on overrun.

Parameters

parser

Parser cursor to advance.

Returns

The next attribute, or NULL at end-of-payload or on overrun.

aliro_uwb_msg_read_u16()

bool aliro_uwb_msg_read_u16	(	const struct aliro_uwb_msg_attribute *	attr,
		const char *	name,
		uint16_t *	out
	)

Decodes a 16-bit big-endian integer from an attribute; returns false on width mismatch or parse error.

Parameters

attr	Attribute whose value bytes are decoded.
name	Attribute name, used for error logging.
out	Destination for the decoded value.

Returns

true on success, false on a size mismatch.

aliro_uwb_msg_read_u32()

bool aliro_uwb_msg_read_u32	(	const struct aliro_uwb_msg_attribute *	attr,
		const char *	name,
		uint32_t *	out
	)

Decodes a 32-bit big-endian integer from an attribute; returns false on width mismatch or parse error.

Parameters

attr	Attribute whose value bytes are decoded.
name	Attribute name, used for error logging.
out	Destination for the decoded value.

Returns

true on success, false on a size mismatch.

aliro_uwb_msg_read_u64()

bool aliro_uwb_msg_read_u64	(	const struct aliro_uwb_msg_attribute *	attr,
		const char *	name,
		uint64_t *	out
	)

Decodes a 64-bit big-endian integer from an attribute.

Parameters

attr	Attribute holding the encoded value.
name	Attribute name, used only in the mismatch log line.
out	Receives the decoded value on success.

Returns

true on success, false on a width mismatch or parse error.

aliro_uwb_msg_read_u8()

bool aliro_uwb_msg_read_u8	(	const struct aliro_uwb_msg_attribute *	attr,
		const char *	name,
		uint8_t *	out
	)

Decodes an 8-bit big-endian integer from an attribute; returns false on width mismatch or parse error.

Parameters

attr	Attribute whose value bytes are decoded.
name	Attribute name, used for error logging.
out	Destination for the decoded value.

Returns

true on success, false on a size mismatch.

read_be()

static bool read_be ( const struct aliro_uwb_msg_attribute *  attr, const char *  name, uint8_t  width, uint64_t *  out  )

static

Decodes a big-endian fixed-width integer from an attribute; returns false if declared length does not match width or on parse error.

Parameters

attr	Attribute whose value bytes are decoded.
name	Attribute name, used for error logging.
width	Expected byte width of the encoded integer.
out	Destination for the decoded value.

Returns

true on success, false if the attribute's declared length does not match width.