msgb Struct Reference

Osmocom message buffer. More...

#include <msgb.h>

Data Structures
union	[union].__unnamed0__

Data Fields
struct llist_head	list
	linked list header
union
struct gsm_lchan *	lchan
	logical channel
unsigned char *	l1h
	pointer to Layer1 header (if any)
unsigned char *	l2h
	pointer to A-bis layer 2 header: OML, RSL(RLL), NS
unsigned char *	l3h
	pointer to Layer 3 header.
unsigned char *	l4h
	pointer to layer 4 header
unsigned long	cb [5]
	control buffer
uint16_t	data_len
	length of underlying data array
uint16_t	len
	length of bytes used in msgb
unsigned char *	head
	start of underlying memory buffer
unsigned char *	tail
	end of message in buffer
unsigned char *	data
	start of message in buffer
unsigned char	_data [0]
	optional immediate data array

Detailed Description

Osmocom message buffer.

Field Documentation

@012166303262211364234031122111105342271206353063

union msgb::[union].__unnamed0__ msgb

_data

unsigned char msgb::_data[0]

optional immediate data array

Referenced by msgb_copy_resize_c(), msgb_push(), and msgb_put().

cb

unsigned long msgb::cb[5]

control buffer

data

unsigned char* msgb::data

start of message in buffer

Referenced by msgb_copy_resize_c(), msgb_headroom(), msgb_pull(), and msgb_push().

data_len

uint16_t msgb::data_len

length of underlying data array

Referenced by msgb_headlen(), msgb_push(), msgb_put(), and msgb_tailroom().

head

unsigned char* msgb::head

start of underlying memory buffer

Referenced by msgb_copy_resize_c(), msgb_headroom(), msgb_push(), msgb_put(), and msgb_tailroom().

l1h

unsigned char* msgb::l1h

pointer to Layer1 header (if any)

Referenced by msgb_copy_resize_c(), and msgb_l1len().

l2h

unsigned char* msgb::l2h

pointer to A-bis layer 2 header: OML, RSL(RLL), NS

Referenced by msgb_copy_resize_c(), and msgb_l2len().

l3h

unsigned char* msgb::l3h

pointer to Layer 3 header.

For OML: FOM; RSL: 04.08; GPRS: BSSGP

Referenced by msgb_copy_resize_c(), and msgb_l3len().

l4h

unsigned char* msgb::l4h

pointer to layer 4 header

Referenced by msgb_copy_resize_c(), and msgb_l4len().

lchan

struct gsm_lchan* msgb::lchan

logical channel

len

uint16_t msgb::len

length of bytes used in msgb

Referenced by msgb_copy_resize_c(), msgb_get(), msgb_headlen(), msgb_pull(), msgb_push(), msgb_push_tl(), and msgb_put().

list

struct llist_head msgb::list

linked list header

tail

unsigned char* msgb::tail

end of message in buffer

Referenced by iofd_poll_ofd_cb_recvmsg_sendmsg(), msgb_copy_resize_c(), msgb_get(), msgb_l1len(), msgb_l2len(), msgb_l3len(), msgb_l4len(), msgb_printf(), msgb_put(), and msgb_tailroom().

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The documentation for this struct was generated from the following file:

• include/osmocom/core/msgb.h