libosmogsm 0.9.6-23.20170220git32ee5af8.fc42
Osmocom GSM library
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tlv.h File Reference
#include <stdint.h>
#include <string.h>
#include <osmocom/core/msgb.h>

Go to the source code of this file.

Data Structures

struct  tlv_p_entry
 Entry in a TLV parser array. More...
 
struct  tlv_def
 Definition of a single IE (Information Element) More...
 
struct  tlv_definition
 Definition of All 256 IE / TLV. More...
 
struct  tlv_parsed
 result of the TLV parser More...
 

Macros

#define LV_GROSS_LEN(x)
 gross length of a LV type field
 
#define TLV_GROSS_LEN(x)
 gross length of a TLV type field
 
#define TLV16_GROSS_LEN(x)
 gross length of a TLV16 type field
 
#define TL16V_GROSS_LEN(x)
 gross length of a TL16V type field
 
#define L16TV_GROSS_LEN(x)
 gross length of a L16TV type field
 
#define TVLV_MAX_ONEBYTE   0x7f
 maximum length of TLV of one byte length
 
#define TLVP_PRESENT(x, y)
 
#define TLVP_LEN(x, y)
 
#define TLVP_VAL(x, y)
 
#define TLVP_PRES_LEN(tp, tag, min_len)
 

Enumerations

enum  tlv_type {
  TLV_TYPE_NONE , TLV_TYPE_FIXED , TLV_TYPE_T , TLV_TYPE_TV ,
  TLV_TYPE_TLV , TLV_TYPE_TL16V , TLV_TYPE_TvLV , TLV_TYPE_SINGLE_TV ,
  TLV_TYPE_vTvLV_GAN
}
 TLV type. More...
 

Functions

static uint16_t TVLV_GROSS_LEN (uint16_t len)
 gross length of a TVLV type field
 
static uint16_t VTVL_GAN_GROSS_LEN (uint16_t tag, uint16_t len)
 gross length of vTvL header (tag+len)
 
static uint16_t VTVLV_GAN_GROSS_LEN (uint16_t tag, uint16_t len)
 gross length of vTvLV (tag+len+val)
 
static uint8_t * lv_put (uint8_t *buf, uint8_t len, const uint8_t *val)
 put (append) a LV field
 
static uint8_t * tlv_put (uint8_t *buf, uint8_t tag, uint8_t len, const uint8_t *val)
 put (append) a TLV field
 
static uint8_t * tlv16_put (uint8_t *buf, uint8_t tag, uint8_t len, const uint16_t *val)
 put (append) a TLV16 field
 
static uint8_t * tl16v_put (uint8_t *buf, uint8_t tag, uint16_t len, const uint8_t *val)
 put (append) a TL16V field
 
static uint8_t * tvlv_put (uint8_t *buf, uint8_t tag, uint16_t len, const uint8_t *val)
 put (append) a TvLV field
 
static uint8_t * vt_gan_put (uint8_t *buf, uint16_t tag)
 put (append) a variable-length tag or variable-length length *
 
static uint8_t * vtvl_gan_put (uint8_t *buf, uint16_t tag, uint16_t len)
 
static uint8_t * vtvlv_gan_put (uint8_t *buf, uint16_t tag, uint16_t len, const uint8_t *val)
 
static uint8_t * msgb_tlv16_put (struct msgb *msg, uint8_t tag, uint8_t len, const uint16_t *val)
 put (append) a TLV16 field to msgb
 
static uint8_t * msgb_tl16v_put (struct msgb *msg, uint8_t tag, uint16_t len, const uint8_t *val)
 put (append) a TL16V field to msgb
 
static uint8_t * msgb_tvlv_put (struct msgb *msg, uint8_t tag, uint16_t len, const uint8_t *val)
 put (append) a TvLV field to msgb
 
static uint8_t * msgb_vtvlv_gan_put (struct msgb *msg, uint16_t tag, uint16_t len, const uint8_t *val)
 put (append) a vTvLV field to msgb
 
static uint8_t * msgb_l16tv_put (struct msgb *msg, uint16_t len, uint8_t tag, const uint8_t *val)
 put (append) a L16TV field to msgb
 
static uint8_t * v_put (uint8_t *buf, uint8_t val)
 put (append) a V field
 
static uint8_t * tv_put (uint8_t *buf, uint8_t tag, uint8_t val)
 put (append) a TV field
 
static uint8_t * tv_fixed_put (uint8_t *buf, uint8_t tag, unsigned int len, const uint8_t *val)
 put (append) a TVfixed field
 
static uint8_t * tv16_put (uint8_t *buf, uint8_t tag, uint16_t val)
 put (append) a TV16 field
 
static uint8_t * msgb_lv_put (struct msgb *msg, uint8_t len, const uint8_t *val)
 put (append) a LV field to a msgb
 
static uint8_t * msgb_tlv_put (struct msgb *msg, uint8_t tag, uint8_t len, const uint8_t *val)
 put (append) a TLV field to a msgb
 
static uint8_t * msgb_tv_put (struct msgb *msg, uint8_t tag, uint8_t val)
 put (append) a TV field to a msgb
 
static uint8_t * msgb_tv_fixed_put (struct msgb *msg, uint8_t tag, unsigned int len, const uint8_t *val)
 put (append) a TVfixed field to a msgb
 
static uint8_t * msgb_v_put (struct msgb *msg, uint8_t val)
 put (append) a V field to a msgb
 
static uint8_t * msgb_tv16_put (struct msgb *msg, uint8_t tag, uint16_t val)
 put (append) a TV16 field to a msgb
 
static uint8_t * msgb_tlv_push (struct msgb *msg, uint8_t tag, uint8_t len, const uint8_t *val)
 push (prepend) a TLV field to a msgb
 
static uint8_t * msgb_tv_push (struct msgb *msg, uint8_t tag, uint8_t val)
 push (prepend) a TV field to a msgb
 
static uint8_t * msgb_tv16_push (struct msgb *msg, uint8_t tag, uint16_t val)
 push (prepend) a TV16 field to a msgb
 
static uint8_t * msgb_tvlv_push (struct msgb *msg, uint8_t tag, uint16_t len, const uint8_t *val)
 push (prepend) a TvLV field to a msgb
 
static uint8_t * msgb_vtvl_gan_push (struct msgb *msg, uint16_t tag, uint16_t len)
 
static uint8_t * msgb_vtvlv_gan_push (struct msgb *msg, uint16_t tag, uint16_t len, const uint8_t *val)
 
int tlv_parse_one (uint8_t *o_tag, uint16_t *o_len, const uint8_t **o_val, const struct tlv_definition *def, const uint8_t *buf, int buf_len)
 Parse a single TLV encoded IE.
 
int tlv_parse (struct tlv_parsed *dec, const struct tlv_definition *def, const uint8_t *buf, int buf_len, uint8_t lv_tag, uint8_t lv_tag2)
 Parse an entire buffer of TLV encoded Information Elements.
 
void tlv_def_patch (struct tlv_definition *dst, const struct tlv_definition *src)
 take a master (src) tlvdev and fill up all empty slots in 'dst'
 
static uint16_t tlvp_val16_unal (const struct tlv_parsed *tp, int pos)
 Align given TLV element with 16 bit value to an even address.
 
static uint32_t tlvp_val32_unal (const struct tlv_parsed *tp, int pos)
 Align given TLV element with 32 bit value to an address that is a multiple of 4.
 
struct tlv_parsedosmo_tlvp_copy (const struct tlv_parsed *tp_orig, void *ctx)
 Copy tlv_parsed using given talloc context.
 
int osmo_tlvp_merge (struct tlv_parsed *dst, const struct tlv_parsed *src)
 Merge all tlv_parsed attributes of 'src' into 'dst'.
 
int osmo_shift_v_fixed (uint8_t **data, size_t *data_len, size_t len, uint8_t **value)
 
int osmo_match_shift_tv_fixed (uint8_t **data, size_t *data_len, uint8_t tag, size_t len, uint8_t **value)
 
int osmo_shift_tlv (uint8_t **data, size_t *data_len, uint8_t *tag, uint8_t **value, size_t *value_len)
 
int osmo_match_shift_tlv (uint8_t **data, size_t *data_len, uint8_t tag, uint8_t **value, size_t *value_len)
 
int osmo_shift_lv (uint8_t **data, size_t *data_len, uint8_t **value, size_t *value_len)
 

Variables

struct tlv_definition tvlv_att_def
 
struct tlv_definition vtvlv_gan_att_def