diff options
Diffstat (limited to 'openbsc/src/gprs_bssgp.c')
| -rw-r--r-- | openbsc/src/gprs_bssgp.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/openbsc/src/gprs_bssgp.c b/openbsc/src/gprs_bssgp.c index a2181b124..ab6d1a098 100644 --- a/openbsc/src/gprs_bssgp.c +++ b/openbsc/src/gprs_bssgp.c @@ -138,6 +138,25 @@ int bssgp_tx_status(u_int8_t cause, u_int16_t *bvci, struct msgb *orig_msg) return gprs_ns_sendmsg(bssgp_nsi, msg); } +/* Chapter 8.4 BVC-Reset Procedure */ +static int bssgp_rx_bvc_reset(struct msgb *msg, struct tlv_parsed *tp, + uint16_t ns_bvci) +{ + uint8_t bvci; + int rc; + + bvci = ntohs(*(u_int16_t *)TLVP_VAL(tp, BSSGP_IE_BVCI)); + DEBUGPC(DGPRS, "BVCI=%u, cause=%s\n", bvci, + bssgp_cause_str(*TLVP_VAL(tp, BSSGP_IE_CAUSE))); + + /* When we receive a BVC-RESET PDU (at least of a PTP BVCI), the BSS + * informs us about its RAC + Cell ID, so we can create a mapping */ + + rc = bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_RESET_ACK, + msgb_nsei(msg), bvci, ns_bvci); + return 0; +} + /* Uplink unit-data */ static int bssgp_rx_ul_ud(struct msgb *msg, u_int16_t bvci) { @@ -157,10 +176,12 @@ static int bssgp_rx_ul_ud(struct msgb *msg, u_int16_t bvci) !TLVP_PRESENT(&tp, BSSGP_IE_LLC_PDU)) return -EIO; +#if 0 //FIXME /* Determine the BTS based on the Cell ID */ bts = gsm48_bts_by_ra_id(bsc_gsmnet, TLVP_VAL(&tp, BSSGP_IE_CELL_ID), TLVP_LEN(&tp, BSSGP_IE_CELL_ID)); +#endif if (bts) msg->trx = bts->c0; @@ -229,6 +250,7 @@ static int bssgp_rx_fc_bvc(struct msgb *msg, struct tlv_parsed *tp, return bssgp_tx_fc_bvc_ack(msgb_nsei(msg), *TLVP_VAL(tp, BSSGP_IE_TAG), ns_bvci); } + /* We expect msg->l3h to point to the BSSGP header */ int gprs_bssgp_rcvmsg(struct msgb *msg, u_int16_t ns_bvci) { @@ -311,11 +333,7 @@ int gprs_bssgp_rcvmsg(struct msgb *msg, u_int16_t ns_bvci) if (!TLVP_PRESENT(&tp, BSSGP_IE_BVCI) || !TLVP_PRESENT(&tp, BSSGP_IE_CAUSE)) goto err_mand_ie; - bvci = ntohs(*(u_int16_t *)TLVP_VAL(&tp, BSSGP_IE_BVCI)); - DEBUGPC(DGPRS, "BVCI=%u, cause=%s\n", bvci, - bssgp_cause_str(*TLVP_VAL(&tp, BSSGP_IE_CAUSE))); - rc = bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_RESET_ACK, - msgb_nsei(msg), bvci, ns_bvci); + rc = bssgp_rx_bvc_reset(msg, &tp, ns_bvci); break; case BSSGP_PDUT_STATUS: /* Some exception has occurred */ |