diff options
| author | Philipp Maier <pmaier@sysmocom.de> | 2019-02-04 16:42:28 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2019-02-05 15:11:36 +0000 |
| commit | 74c4c4e91a4270f19cdb20164101fc1bd99eda37 (patch) | |
| tree | 1d99cb76ea814114ef9383d5815bad2ab2405d4f | |
| parent | b0708d3e769851093ef633844d894b683a3c0341 (diff) | |
gsm0808: Add CSFB indication IE to BSSMAP CLEAR COMMAND
When a call that was established in a CSFB context ends the CLEAR
COMMAND that is send from the BSC to the MSC should contain a CSFB
indication IE, which consists of just the IE byte itsslef. This
additional IE tells the BSC to include other CSFB related IEs into the
RR Release message.
Change-Id: Id8a75e1da2d5f520064666e4ee413d1c91da6ae3
Related: OS#3778
| -rw-r--r-- | include/osmocom/gsm/gsm0808.h | 1 | ||||
| -rw-r--r-- | src/gsm/gsm0808.c | 16 | ||||
| -rw-r--r-- | src/gsm/libosmogsm.map | 1 |
3 files changed, 18 insertions, 0 deletions
diff --git a/include/osmocom/gsm/gsm0808.h b/include/osmocom/gsm/gsm0808.h index 6d14e13e..35e7a8e3 100644 --- a/include/osmocom/gsm/gsm0808.h +++ b/include/osmocom/gsm/gsm0808.h @@ -49,6 +49,7 @@ struct msgb *gsm0808_create_layer3_2(const struct msgb *msg_l3, const struct osm struct msgb *gsm0808_create_reset(void); struct msgb *gsm0808_create_reset_ack(void); struct msgb *gsm0808_create_clear_command(uint8_t cause); +struct msgb *gsm0808_create_clear_command2(uint8_t cause, bool csfb_ind); struct msgb *gsm0808_create_clear_complete(void); struct msgb *gsm0808_create_cipher(const struct gsm0808_encrypt_info *ei, const uint8_t *cipher_response_mode); diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c index fce8e0a8..29072551 100644 --- a/src/gsm/gsm0808.c +++ b/src/gsm/gsm0808.c @@ -195,6 +195,22 @@ struct msgb *gsm0808_create_clear_command(uint8_t cause) return msg; } +/*! Create BSSMAP Clear Command message. + * \param[in] cause TS 08.08 cause value. + * \param[in] csfb_ind indicate that the call was established in an CSFB context. + * \returns callee-allocated msgb with BSSMAP Clear Command message. */ +struct msgb *gsm0808_create_clear_command2(uint8_t cause, bool csfb_ind) +{ + struct msgb *msg = gsm0808_create_clear_command(cause); + if (!msg) + return NULL; + + if (csfb_ind) + msgb_v_put(msg, GSM0808_IE_CSFB_INDICATION); + + return msg; +} + /*! Create BSSMAP Cipher Mode Command message * \param[in] ei Mandatory Encryption Information * \param[in] cipher_response_mode optional 1-byte Cipher Response Mode diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map index 3cfe6a7c..602c7a63 100644 --- a/src/gsm/libosmogsm.map +++ b/src/gsm/libosmogsm.map @@ -164,6 +164,7 @@ gsm0808_get_cipher_reject_cause; gsm0808_create_classmark_request; gsm0808_create_classmark_update; gsm0808_create_clear_command; +gsm0808_create_clear_command2; gsm0808_create_clear_complete; gsm0808_create_clear_rqst; gsm0808_create_paging; |