diff options
| author | Max <msuraev@sysmocom.de> | 2018-11-07 15:25:05 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-11-19 05:52:28 +0000 |
| commit | ed651d2485a51b57bf6090f4f58fd356118c6835 (patch) | |
| tree | 1929899e80b7606e3211688a395d1cee3fab4705 /src/gsm/gsm0808_utils.c | |
| parent | 84fb5bb6a09a6a358f98c654c84c3b99a0f24eef (diff) | |
Support cipher mode reject with extended cause
* add function to generate cipher mode reject with extended (2-byte)
Cause IE
* add function to get (extended) Cause value
* add corresponding (extended cause) test
* update existing (non-extended cause) test
* use enum as a parameter for existing non-extended version to make
interface more unified
Change-Id: Id5509b94a18180a44f45300caaa02b843c166fa3
Related: OS#3187
Diffstat (limited to 'src/gsm/gsm0808_utils.c')
| -rw-r--r-- | src/gsm/gsm0808_utils.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/gsm/gsm0808_utils.c b/src/gsm/gsm0808_utils.c index 2348105d..c58d8284 100644 --- a/src/gsm/gsm0808_utils.c +++ b/src/gsm/gsm0808_utils.c @@ -1235,6 +1235,22 @@ void gsm48_mr_cfg_from_gsm0808_sc_cfg(struct gsm48_multi_rate_conf *cfg, cfg->icmi = 1; } +int gsm0808_get_cipher_reject_cause(const struct tlv_parsed *tp) +{ + const uint8_t *buf = TLVP_VAL_MINLEN(tp, GSM0808_IE_CAUSE, 1); + + if (!buf) + return -EBADMSG; + + if (TLVP_LEN(tp, GSM0808_IE_CAUSE) > 1) { + if (!gsm0808_cause_ext(buf[0])) + return -EINVAL; + return buf[1]; + } + + return buf[0]; +} + /*! Print a human readable name of the cell identifier to the char buffer. * This is useful both for struct gsm0808_cell_id and struct gsm0808_cell_id_list2. * See also gsm0808_cell_id_name() and gsm0808_cell_id_list_name(). |