43 struct gsm_bts_trx *
trx;
71 int old_size,
int new_size);
86 #define MSGB_ABORT(msg, fmt, args ...) do { \ 87 osmo_panic("msgb(%p): " fmt, msg, ## args); \ 90 #define MSGB_ABORT(msg, fmt, args ...) 94 #define msgb_l1(m) ((void *)(m->l1h)) 96 #define msgb_l2(m) ((void *)(m->l2h)) 98 #define msgb_l3(m) ((void *)(m->l3h)) 100 #define msgb_sms(m) ((void *)(m->l4h)) 188 unsigned char *tmp = msgb->
tail;
190 MSGB_ABORT(msgb,
"Not enough tailroom msgb_put (%u < %u)\n",
204 space[0] = word & 0xFF;
234 MSGB_ABORT(msgb,
"msgb too small to get %u (len %u)\n",
286 MSGB_ABORT(msgb,
"Not enough headroom msgb_push (%u < %u)\n",
309 uint16_t *space = (uint16_t *)
msgb_push(msg, 2);
319 uint32_t *space = (uint32_t *)
msgb_push(msg, 4);
335 MSGB_ABORT(msgb,
"msgb too small to pull %u (len %u)\n",
352 msg->
l1h = msg->
l2h = NULL;
426 MSGB_ABORT(msg,
"Negative length is not allowed\n");
473 const unsigned char *lbound;
474 if (!msg || !msg->
data || !msg->
tail ||
483 if (msg->
l1h < lbound)
488 if (msg->
l2h < lbound)
493 if (msg->
l3h < lbound)
498 if (msg->
l4h < lbound)
static unsigned char * msgb_put(struct msgb *msgb, unsigned int len)
append data to end of message buffer
Definition: msgb.h:186
static uint16_t msgb_pull_u16(struct msgb *msgb)
remove uint16 from front of message
Definition: msgb.h:385
static unsigned int msgb_l3len(const struct msgb *msgb)
determine length of L3 message
Definition: msgb.h:133
unsigned long cb[5]
control buffer
Definition: msgb.h:52
#define OSMO_DEPRECATED(text)
Set the deprecated attribute with a message.
Definition: defs.h:41
unsigned char * l3h
pointer to Layer 3 header.
Definition: msgb.h:49
#define msgb_l3(m)
obtain L3 header of msgb
Definition: msgb.h:98
#define msgb_l1(m)
obtain L1 header of msgb
Definition: msgb.h:94
struct msgb * msgb_alloc(uint16_t size, const char *name)
Allocate a new message buffer.
Definition: msgb.c:78
unsigned char * data
start of message in buffer
Definition: msgb.h:59
static const char * msgb_hexdump_l2(const struct msgb *msg)
Definition: msgb.h:514
struct rb_root __attribute__
Definition: conv_acc_generic.c:140
Osmocom message buffer.
Definition: msgb.h:35
void msgb_set_talloc_ctx(void *ctx) OSMO_DEPRECATED("Use msgb_talloc_ctx_init() instead")
Set the talloc context for msgb_alloc Deprecated, use msgb_talloc_ctx_init() instead.
Definition: msgb.c:189
static const char * msgb_hexdump_l3(const struct msgb *msg)
Definition: msgb.h:521
static int msgb_l3trim(struct msgb *msg, int l3len)
Trim the msgb to a given layer3 length.
Definition: msgb.h:441
General definitions that are meant to be included from header files.
static int msgb_trim(struct msgb *msg, int len)
Trim the msgb to a given absolute length.
Definition: msgb.h:423
uint16_t len
length of bytes used in msgb
Definition: msgb.h:55
char name[32]
source file name
Definition: gsmtap.h:124
static unsigned char * msgb_pull_to_l3(struct msgb *msg)
remove (pull) all headers in front of l3h from the message buffer.
Definition: msgb.h:349
#define osmo_static_assert(exp, name)
Definition: utils.h:60
void msgb_free(struct msgb *m)
Release given message buffer.
Definition: msgb.c:104
static int msgb_tailroom(const struct msgb *msgb)
determine how much tail room is left in msgb
Definition: msgb.h:157
unsigned char * l4h
pointer to layer 4 header
Definition: msgb.h:50
static uint16_t osmo_load16be(const void *p)
load unaligned 16-bit integer (big-endian encoding)
Definition: bit16gen.h:89
static unsigned int msgb_l1len(const struct msgb *msgb)
determine length of L1 message
Definition: msgb.h:109
static unsigned char * msgb_get(struct msgb *msgb, unsigned int len)
remove data from end of message
Definition: msgb.h:231
const char * msgb_hexdump(const struct msgb *msg)
Return a (static) buffer containing a hexdump of the msg.
Definition: msgb.c:307
static void msgb_push_u8(struct msgb *msg, uint8_t word)
prepend a uint8 value to the head of the message
Definition: msgb.h:297
struct msgb * msgb_dequeue(struct llist_head *queue)
Dequeue message buffer from head of queue.
Definition: msgb.c:128
static void msgb_queue_free(struct llist_head *queue)
Free all msgbs from a queue built with msgb_enqueue().
Definition: msgb.h:78
void * msgb_talloc_ctx_init(void *root_ctx, unsigned int pool_size)
Initialize a msgb talloc context for msgb_alloc.
Definition: msgb.c:202
int msgb_resize_area(struct msgb *msg, uint8_t *area, int old_size, int new_size)
Resize an area within an msgb.
Definition: msgb.c:262
static uint32_t msgb_pull_u32(struct msgb *msgb)
remove uint32 from front of message
Definition: msgb.h:395
static unsigned int msgb_l2len(const struct msgb *msgb)
determine length of L2 message
Definition: msgb.h:121
static struct msgb * msgb_alloc_headroom(int size, int headroom, const char *name)
Allocate message buffer with specified headroom.
Definition: msgb.h:456
static unsigned char * msgb_push(struct msgb *msgb, unsigned int len)
prepend (push) some data to start of message
Definition: msgb.h:283
Simple doubly linked list implementation.
struct gsm_bts_trx * trx
Definition: msgb.h:43
(double) linked list header structure
Definition: linuxlist.h:46
unsigned char * l1h
pointer to Layer1 header (if any)
Definition: msgb.h:47
static uint8_t msgb_pull_u8(struct msgb *msgb)
remove uint8 from front of message
Definition: msgb.h:375
void msgb_enqueue(struct llist_head *queue, struct msgb *msg)
Enqueue message buffer to tail of a queue.
Definition: msgb.c:116
struct gsm_lchan * lchan
logical channel
Definition: msgb.h:45
void msgb_reset(struct msgb *m)
Re-set all message buffer pointers.
Definition: msgb.c:151
static void msgb_push_u32(struct msgb *msg, uint32_t word)
prepend a uint32 value to the head of the message
Definition: msgb.h:317
static void msgb_reserve(struct msgb *msg, int len)
Increase headroom of empty msgb, reducing the tailroom.
Definition: msgb.h:412
unsigned char * tail
end of message in buffer
Definition: msgb.h:58
int msgb_printf(struct msgb *msgb, const char *format,...)
Print a string to the end of message buffer.
Definition: msgb.c:402
static void msgb_put_u16(struct msgb *msgb, uint16_t word)
append a uint16 value to the end of the message
Definition: msgb.h:211
static uint8_t msgb_get_u8(struct msgb *msgb)
remove uint8 from end of message
Definition: msgb.h:245
unsigned char * l2h
pointer to A-bis layer 2 header: OML, RSL(RLL), NS
Definition: msgb.h:48
struct msgb * msgb_copy(const struct msgb *msg, const char *name)
Copy an msgb.
Definition: msgb.c:220
unsigned char * head
start of underlying memory buffer
Definition: msgb.h:57
static uint32_t msgb_get_u32(struct msgb *msgb)
remove uint32 from end of message
Definition: msgb.h:265
static int msgb_headroom(const struct msgb *msgb)
determine the amount of headroom in msgb
Definition: msgb.h:169
Osmocom bit level support code.
static uint32_t osmo_load32be(const void *p)
load unaligned 32-bit integer (big-endian encoding)
Definition: bit32gen.h:89
uint16_t data_len
length of underlying data array
Definition: msgb.h:54
static void osmo_store16be(uint16_t x, void *p)
store unaligned 16-bit integer (big-endian encoding)
Definition: bit16gen.h:102
#define MSGB_ABORT(msg, fmt, args...)
Definition: msgb.h:86
unsigned char _data[0]
optional immediate data array
Definition: msgb.h:60
struct llist_head list
linked list header
Definition: msgb.h:36
uint8_t * msgb_data(const struct msgb *msg)
get pointer to data section of message buffer
Definition: msgb.c:171
#define msgb_l2(m)
obtain L2 header of msgb
Definition: msgb.h:96
static uint16_t msgb_get_u16(struct msgb *msgb)
remove uint16 from end of message
Definition: msgb.h:255
char * osmo_hexdump(const unsigned char *buf, int len)
Convert binary sequence to hexadecimal ASCII string.
Definition: utils.c:252
void * dst
reference of origin/destination
Definition: msgb.h:42
static unsigned int msgb_headlen(const struct msgb *msgb)
determine the length of the header
Definition: msgb.h:145
uint16_t msgb_length(const struct msgb *msg)
get length of message buffer
Definition: msgb.c:180
static int msgb_test_invariant(const struct msgb *msg) __attribute__((pure))
Check a message buffer for consistency.
Definition: msgb.h:471
static void msgb_put_u32(struct msgb *msgb, uint32_t word)
append a uint32 value to the end of the message
Definition: msgb.h:221
static unsigned char * msgb_pull(struct msgb *msgb, unsigned int len)
remove (pull) a header from the front of the message buffer
Definition: msgb.h:332
static void osmo_store32be(uint32_t x, void *p)
store unaligned 32-bit integer (big-endian encoding)
Definition: bit32gen.h:102
static unsigned char * msgb_pull_to_l2(struct msgb *msg)
remove (pull) all headers in front of l2h from the message buffer.
Definition: msgb.h:364
static void msgb_push_u16(struct msgb *msg, uint16_t word)
prepend a uint16 value to the head of the message
Definition: msgb.h:307
static void msgb_put_u8(struct msgb *msgb, uint8_t word)
append a uint8 value to the end of the message
Definition: msgb.h:201