diff options
| author | Max <msuraev@sysmocom.de> | 2018-11-08 13:23:59 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-11-19 05:47:25 +0000 |
| commit | 84fb5bb6a09a6a358f98c654c84c3b99a0f24eef (patch) | |
| tree | 6593f409f0af13cee294645946edd7d0316e5891 /include/osmocom | |
| parent | d8d0c3e2d14588f8ae863b36f496f20775777619 (diff) | |
Move msgb_push helpers to public header
The msgb_wrap_with_TL() is generally useful so it make sense to make it
public to facilitate code re-use.
Other helpers can be implemented as trivial wrappers over existing tlv.h
functions. Update headers and code accordingly.
Change-Id: I37e91d031fba28cf1c6735b8069b0265746f55e6
Diffstat (limited to 'include/osmocom')
| -rw-r--r-- | include/osmocom/core/msgb.h | 9 | ||||
| -rw-r--r-- | include/osmocom/gsm/tlv.h | 6 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/osmocom/core/msgb.h b/include/osmocom/core/msgb.h index 8843db01..2449151d 100644 --- a/include/osmocom/core/msgb.h +++ b/include/osmocom/core/msgb.h @@ -366,6 +366,15 @@ static inline void msgb_push_u32(struct msgb *msg, uint32_t word) osmo_store32be(word, space); } +static inline unsigned char *msgb_wrap_with_TL(struct msgb *msgb, uint8_t tag) +{ + uint8_t *data = msgb_push(msgb, 2); + + data[0] = tag; + data[1] = msgb->len - 2; + return data; +} + /*! remove (pull) a header from the front of the message buffer * \param[in] msgb message buffer * \param[in] len number of octets to be pulled diff --git a/include/osmocom/gsm/tlv.h b/include/osmocom/gsm/tlv.h index 84fd511e..1ab964ad 100644 --- a/include/osmocom/gsm/tlv.h +++ b/include/osmocom/gsm/tlv.h @@ -341,6 +341,12 @@ static inline uint8_t *msgb_tlv_push(struct msgb *msg, uint8_t tag, uint8_t len, return buf; } +/*! push 1-byte tagged value */ +static inline uint8_t *msgb_tlv1_push(struct msgb *msg, uint8_t tag, uint8_t val) +{ + return msgb_tlv_push(msg, tag, 1, &val); +} + /*! push (prepend) a TV field to a \ref msgb * \returns pointer to first byte of newly-pushed information */ static inline uint8_t *msgb_tv_push(struct msgb *msg, uint8_t tag, uint8_t val) |