msgb.h File Reference

#include <stdint.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/bits.h>
#include <osmocom/core/defs.h>
#include <osmocom/core/panic.h>

Go to the source code of this file.

Data Structures
struct	msgb
	Osmocom message buffer. More...

Macros
#define	MSGB_DEBUG
#define	MSGB_ABORT(msg, fmt, args ...)
#define	msgb_l1(m)   ((void *)(m->l1h))
	obtain L1 header of msgb More...
#define	msgb_l2(m)   ((void *)(m->l2h))
	obtain L2 header of msgb More...
#define	msgb_l3(m)   ((void *)(m->l3h))
	obtain L3 header of msgb More...
#define	msgb_sms(m)   ((void *)(m->l4h))
	obtain SMS header of msgb More...

Functions
struct msgb *	msgb_alloc (uint16_t size, const char *name)
	Allocate a new message buffer. More...
void	msgb_free (struct msgb *m)
	Release given message buffer. More...
void	msgb_enqueue (struct llist_head *queue, struct msgb *msg)
	Enqueue message buffer to tail of a queue. More...
struct msgb *	msgb_dequeue (struct llist_head *queue)
	Dequeue message buffer from head of queue. More...
void	msgb_reset (struct msgb *msg)
	Re-set all message buffer pointers. More...
uint16_t	msgb_length (const struct msgb *msg)
	get length of message buffer More...
const char *	msgb_hexdump (const struct msgb *msg)
	Return a (static) buffer containing a hexdump of the msg. More...
int	msgb_resize_area (struct msgb *msg, uint8_t *area, int old_size, int new_size)
	Resize an area within an msgb. More...
struct msgb *	msgb_copy (const struct msgb *msg, const char *name)
	Copy an msgb. More...
static int	msgb_test_invariant (const struct msgb *msg)
	Check a message buffer for consistency. More...
static void	msgb_queue_free (struct llist_head *queue)
	Free all msgbs from a queue built with msgb_enqueue(). More...
static unsigned int	msgb_l1len (const struct msgb *msgb)
	determine length of L1 message More...
static unsigned int	msgb_l2len (const struct msgb *msgb)
	determine length of L2 message More...
static unsigned int	msgb_l3len (const struct msgb *msgb)
	determine length of L3 message More...
static unsigned int	msgb_headlen (const struct msgb *msgb)
	determine the length of the header More...
static int	msgb_tailroom (const struct msgb *msgb)
	determine how much tail room is left in msgb More...
static int	msgb_headroom (const struct msgb *msgb)
	determine the amount of headroom in msgb More...
static unsigned char *	msgb_put (struct msgb *msgb, unsigned int len)
	append data to end of message buffer More...
static void	msgb_put_u8 (struct msgb *msgb, uint8_t word)
	append a uint8 value to the end of the message More...
static void	msgb_put_u16 (struct msgb *msgb, uint16_t word)
	append a uint16 value to the end of the message More...
static void	msgb_put_u32 (struct msgb *msgb, uint32_t word)
	append a uint32 value to the end of the message More...
static unsigned char *	msgb_get (struct msgb *msgb, unsigned int len)
	remove data from end of message More...
static uint8_t	msgb_get_u8 (struct msgb *msgb)
	remove uint8 from end of message More...
static uint16_t	msgb_get_u16 (struct msgb *msgb)
	remove uint16 from end of message More...
static uint32_t	msgb_get_u32 (struct msgb *msgb)
	remove uint32 from end of message More...
static unsigned char *	msgb_push (struct msgb *msgb, unsigned int len)
	prepend (push) some data to start of message More...
static void	msgb_push_u8 (struct msgb *msg, uint8_t word)
	prepend a uint8 value to the head of the message More...
static void	msgb_push_u16 (struct msgb *msg, uint16_t word)
	prepend a uint16 value to the head of the message More...
static void	msgb_push_u32 (struct msgb *msg, uint32_t word)
	prepend a uint32 value to the head of the message More...
static unsigned char *	msgb_pull (struct msgb *msgb, unsigned int len)
	remove (pull) a header from the front of the message buffer More...
static unsigned char *	msgb_pull_to_l3 (struct msgb *msg)
	remove (pull) all headers in front of l3h from the message buffer. More...
static unsigned char *	msgb_pull_to_l2 (struct msgb *msg)
	remove (pull) all headers in front of l2h from the message buffer. More...
static uint8_t	msgb_pull_u8 (struct msgb *msgb)
	remove uint8 from front of message More...
static uint16_t	msgb_pull_u16 (struct msgb *msgb)
	remove uint16 from front of message More...
static uint32_t	msgb_pull_u32 (struct msgb *msgb)
	remove uint32 from front of message More...
static void	msgb_reserve (struct msgb *msg, int len)
	Increase headroom of empty msgb, reducing the tailroom. More...
static int	msgb_trim (struct msgb *msg, int len)
	Trim the msgb to a given absolute length. More...
static int	msgb_l3trim (struct msgb *msg, int l3len)
	Trim the msgb to a given layer3 length. More...
static struct msgb *	msgb_alloc_headroom (int size, int headroom, const char *name)
	Allocate message buffer with specified headroom. More...
uint8_t *	msgb_data (const struct msgb *msg)
	get pointer to data section of message buffer More...
void *	msgb_talloc_ctx_init (void *root_ctx, unsigned int pool_size)
	Initialize a msgb talloc context for msgb_alloc. More...
void	msgb_set_talloc_ctx (void *ctx)
	Set the talloc context for msgb_alloc Deprecated, use msgb_talloc_ctx_init() instead. More...
int	msgb_printf (struct msgb *msgb, const char *format,...)
	Print a string to the end of message buffer. More...
static const char *	msgb_hexdump_l2 (const struct msgb *msg)
static const char *	msgb_hexdump_l3 (const struct msgb *msg)