diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gsm/gsm0808.c | 24 | ||||
| -rw-r--r-- | src/gsm/gsm0808_utils.c | 16 | ||||
| -rw-r--r-- | src/gsm/libosmogsm.map | 2 |
3 files changed, 42 insertions, 0 deletions
diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c index c413688c..a84e717d 100644 --- a/src/gsm/gsm0808.c +++ b/src/gsm/gsm0808.c @@ -283,6 +283,30 @@ struct msgb *gsm0808_create_cipher_reject(enum gsm0808_cause cause) return msg; } +/*! Create BSSMAP Cipher Mode Reject message + * \param[in] class 3GPP TS 08.08 §3.2.2.5 cause's class + * \param[in] ext 3GPP TS 08.08 §3.2.2.5 cause value (national application extension) + * \returns callee-allocated msgb with BSSMAP Cipher Mode Reject message */ +struct msgb *gsm0808_create_cipher_reject_ext(enum gsm0808_cause_class class, uint8_t ext) +{ + uint8_t c[2]; + struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, + "bssmap: cipher mode reject"); + if (!msg) + return NULL; + + c[0] = 0x80 | (class << 4); /* set the high bit to indicate extended cause */ + c[1] = ext; + + msgb_v_put(msg, BSS_MAP_MSG_CIPHER_MODE_REJECT); + + msgb_tlv_put(msg, GSM0808_IE_CAUSE, 2, c); + + msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); + + return msg; +} + /*! Create BSSMAP LCLS CONNECT CONTROL message (TS 48.008 3.2.1.91). * \param[in] config LCLS Configuration * \param[in] control LCLS Connection Status Control 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(). diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map index 32e4ce95..217dcc39 100644 --- a/src/gsm/libosmogsm.map +++ b/src/gsm/libosmogsm.map @@ -157,6 +157,8 @@ gsm0808_create_ass_fail; gsm0808_create_cipher; gsm0808_create_cipher_complete; gsm0808_create_cipher_reject; +gsm0808_create_cipher_reject_ext; +gsm0808_get_cipher_reject_cause; gsm0808_create_classmark_request; gsm0808_create_classmark_update; gsm0808_create_clear_command; |