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tlv.h: Add msgb_tvlv_put_{16,32}be() 

Those routines are very useful when puzzling together BSSGP messages
with 16-bit and 32bit sized IEs.

Change-Id: I033f9a708c9d7ffad91336178231dc66233e1693
This commit is contained in:
Harald Welte 2020-12-08 20:32:12 +01:00
parent a6f896232e
commit dec201a606
1 changed files with 15 additions and 0 deletions
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15
include/osmocom/gsm/tlv.h
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@ -4,6 +4,7 @@
#include <string.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/byteswap.h>
#include <osmocom/core/bit16gen.h>
#include <osmocom/core/bit32gen.h>
@ -278,6 +279,20 @@ static inline uint8_t *msgb_tvlv_put(struct msgb *msg, uint8_t tag, uint16_t len
return tvlv_put(buf, tag, len, val);
}
/*! put (append) a TvLV field containing a big-endian 16bit value to msgb. */
static inline uint8_t *msgb_tvlv_put_16be(struct msgb *msg, uint8_t tag, uint16_t val)
{
uint16_t val_be = osmo_htons(val);
return msgb_tvlv_put(msg, tag, 2, (const uint8_t *)&val_be);
}
/*! put (append) a TvLV field containing a big-endian 16bit value to msgb. */
static inline uint8_t *msgb_tvlv_put_32be(struct msgb *msg, uint8_t tag, uint32_t val)
{
uint32_t val_be = osmo_htonl(val);
return msgb_tvlv_put(msg, tag, 4, (const uint8_t *)&val_be);
}
/*! put (append) a vTvLV field to \ref msgb */
static inline uint8_t *msgb_vtvlv_gan_put(struct msgb *msg, uint16_t tag,
uint16_t len, const uint8_t *val)