[M] Change in osmo-bsc[master]: ASCI: Add decoding of VGCS/VBS A-interface messages

jolly has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bsc/+/33612 ) Change subject: ASCI: Add decoding of VGCS/VBS A-interface messages ...................................................................... ASCI: Add decoding of VGCS/VBS A-interface messages Change-Id: I77b4d072d76039b1889ae4bba4a602e956405eb8 Related: OS#4852 --- M src/osmo-bsc/osmo_bsc_bssap.c 1 file changed, 125 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/12/33612/1 diff --git a/src/osmo-bsc/osmo_bsc_bssap.c b/src/osmo-bsc/osmo_bsc_bssap.c index 7e82534..c415ede 100644 --- a/src/osmo-bsc/osmo_bsc_bssap.c +++ b/src/osmo-bsc/osmo_bsc_bssap.c @@ -1300,6 +1300,101 @@ return 0; } +/* Handle (VGCS) UPLINK REQUEST ACKNOWLEDGE: + * + * See 3GPP TS 48.008 §3.2.1.58 + */ +static int bssmap_handle_uplink_rqst_acknowledge(struct gsm_subscriber_connection *conn, + struct msgb *msg, unsigned int length) +{ + struct tlv_parsed tp; + + if (osmo_bssap_tlv_parse(&tp, msg->l4h + 1, length - 1) < 0) { + LOGPFSML(conn->fi, LOGL_ERROR, "%s(): tlv_parse() failed\n", __func__); + return -1; + } + + if (conn->vgcs_call.fi) + osmo_fsm_inst_dispatch(conn->vgcs_call.fi, VGCS_EV_MSC_ACK, NULL); + return 0; +} + +/* Handle (VGCS) UPLINK REJECT COMMAND message. + * + * See 3GPP TS 48.008 §3.2.1.61 + */ +static int bssmap_handle_uplink_reject_cmd(struct gsm_subscriber_connection *conn, + struct msgb *msg, unsigned int length) +{ + struct tlv_parsed tp; + + if (osmo_bssap_tlv_parse(&tp, msg->l4h + 1, length - 1) < 0) { + LOGPFSML(conn->fi, LOGL_ERROR, "%s(): tlv_parse() failed\n", __func__); + return -1; + } + + if (conn->vgcs_call.fi) + osmo_fsm_inst_dispatch(conn->vgcs_call.fi, VGCS_EV_MSC_REJECT, NULL); + return 0; +} + +/* Handle (VGCS) UPLINK RELEASE COMMAND message, MSC indicating an error to us: + * + * See 3GPP TS 48.008 §3.2.1.62 + */ +static int bssmap_handle_uplink_release_cmd(struct gsm_subscriber_connection *conn, + struct msgb *msg, unsigned int length) +{ + struct tlv_parsed tp; + + if (osmo_bssap_tlv_parse(&tp, msg->l4h + 1, length - 1) < 0) { + LOGPFSML(conn->fi, LOGL_ERROR, "%s(): tlv_parse() failed\n", __func__); + return -1; + } + + if (conn->vgcs_call.fi) + osmo_fsm_inst_dispatch(conn->vgcs_call.fi, VGCS_EV_MSC_RELEASE, NULL); + return 0; +} + +/* Handle (VGCS) UPLINK SEIZED COMMAND message: + * + * See 3GPP TS 48.008 §3.2.1.63 + */ +static int bssmap_handle_uplink_seized_cmd(struct gsm_subscriber_connection *conn, + struct msgb *msg, unsigned int length) +{ + struct tlv_parsed tp; + + if (osmo_bssap_tlv_parse(&tp, msg->l4h + 1, length - 1) < 0) { + LOGPFSML(conn->fi, LOGL_ERROR, "%s(): tlv_parse() failed\n", __func__); + return -1; + } + + if (conn->vgcs_call.fi) + osmo_fsm_inst_dispatch(conn->vgcs_call.fi, VGCS_EV_MSC_SEIZE, NULL); + return 0; +} + +/* Handle VGCS/VBS ADDITIONAL INFO message: + * + * See 3GPP TS 48.008 §3.2.1.78 + */ +static int bssmap_handle_vgcs_addl_info(struct gsm_subscriber_connection *conn, + struct msgb *msg, unsigned int length) +{ + struct tlv_parsed tp; + + if (osmo_bssap_tlv_parse(&tp, msg->l4h + 1, length - 1) < 0) { + LOGPFSML(conn->fi, LOGL_ERROR, "%s(): tlv_parse() failed\n", __func__); + return -1; + } + + LOGPFSML(conn->fi, LOGL_ERROR, "VGCS ADDITIONAL INFO is not supported.\n"); + + return 0; +} + static int bssmap_rcvmsg_udt(struct bsc_msc_data *msc, struct msgb *msg, unsigned int length) { @@ -1403,6 +1498,26 @@ ret = 0; } break; + case BSS_MAP_MSG_UPLINK_RQST_ACKNOWLEDGE: + rate_ctr_inc(&ctrs[MSC_CTR_BSSMAP_RX_DT1_UPLINK_RQST_ACKNOWLEDGE]); + ret = bssmap_handle_uplink_rqst_acknowledge(conn, msg, length); + break; + case BSS_MAP_MSG_UPLINK_REJECT_CMD: + rate_ctr_inc(&ctrs[MSC_CTR_BSSMAP_RX_DT1_UPLINK_REJECT_CMD]); + ret = bssmap_handle_uplink_reject_cmd(conn, msg, length); + break; + case BSS_MAP_MSG_UPLINK_RELEASE_CMD: + rate_ctr_inc(&ctrs[MSC_CTR_BSSMAP_RX_DT1_UPLINK_RELEASE_CMD]); + ret = bssmap_handle_uplink_release_cmd(conn, msg, length); + break; + case BSS_MAP_MSG_UPLINK_SEIZED_CMD: + rate_ctr_inc(&ctrs[MSC_CTR_BSSMAP_RX_DT1_UPLINK_SEIZED_CMD]); + ret = bssmap_handle_uplink_seized_cmd(conn, msg, length); + break; + case BSS_MAP_MSG_VGCS_ADDL_INFO: + rate_ctr_inc(&ctrs[MSC_CTR_BSSMAP_RX_DT1_VGCS_ADDL_INFO]); + ret = bssmap_handle_vgcs_addl_info(conn, msg, length); + break; default: rate_ctr_inc(&ctrs[MSC_CTR_BSSMAP_RX_DT1_UNKNOWN]); LOGP(DMSC, LOGL_NOTICE, "Unimplemented msg type: %s\n", -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/33612 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-Change-Id: I77b4d072d76039b1889ae4bba4a602e956405eb8 Gerrit-Change-Number: 33612 Gerrit-PatchSet: 1 Gerrit-Owner: jolly &lt;andreas(a)eversberg.eu&gt; Gerrit-MessageType: newchange