diff options
Diffstat (limited to 'src/gsm/gsm0808.c')
| -rw-r--r-- | src/gsm/gsm0808.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c index 02288e6c..788f6c3c 100644 --- a/src/gsm/gsm0808.c +++ b/src/gsm/gsm0808.c @@ -1654,6 +1654,22 @@ const char *gsm0808_cause_name(enum gsm0808_cause cause) return get_value_string(gsm0808_cause_names, cause); } +enum gsm0808_cause gsm0808_get_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]; +} + const struct value_string gsm0808_lcls_config_names[] = { { GSM0808_LCLS_CFG_BOTH_WAY, "Connect both-way" }, { GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL, |