gprs_bssgp: add handling for BSSGP RIM primitives
Receive and forward RIM messages to bssgp_prim_cb()
Change-Id: Idfd0a65872a2cc6089885afd8d31b0b029d85d47
Related: SYS#5103
diff --git a/include/osmocom/gprs/gprs_bssgp.h b/include/osmocom/gprs/gprs_bssgp.h
index 7077044..d228c53 100644
--- a/include/osmocom/gprs/gprs_bssgp.h
+++ b/include/osmocom/gprs/gprs_bssgp.h
@@ -56,6 +56,8 @@
PRIM_NM_BVC_BLOCK,
PRIM_NM_BVC_UNBLOCK,
PRIM_NM_STATUS,
+
+ PRIM_BSSGP_RIM_PDU_TRANSFER,
};
struct osmo_bssgp_prim {
diff --git a/include/osmocom/gsm/prim.h b/include/osmocom/gsm/prim.h
index e7a60e3..045e353 100644
--- a/include/osmocom/gsm/prim.h
+++ b/include/osmocom/gsm/prim.h
@@ -16,4 +16,6 @@
SAP_BSSGP_PFM,
SAP_NS,
+
+ SAP_BSSGP_RIM,
};
diff --git a/src/gb/gprs_bssgp.c b/src/gb/gprs_bssgp.c
index 09f6373..fd2a48c 100644
--- a/src/gb/gprs_bssgp.c
+++ b/src/gb/gprs_bssgp.c
@@ -734,6 +734,39 @@
return bssgp_prim_cb(&nmp.oph, NULL);
}
+static int bssgp_rx_rim(struct msgb *msg, struct tlv_parsed *tp, uint16_t bvci)
+{
+ struct osmo_bssgp_prim nmp;
+ uint16_t nsei = msgb_nsei(msg);
+ struct bssgp_normal_hdr *bgph = (struct bssgp_normal_hdr *)msgb_bssgph(msg);
+ enum bssgp_prim prim;
+
+ DEBUGP(DLBSSGP, "BSSGP BVCI=%u Rx RIM-PDU:%s\n", bvci, bssgp_pdu_str(bgph->pdu_type));
+
+ /* Specify PRIM type based on the RIM PDU */
+ switch (bgph->pdu_type) {
+ case BSSGP_PDUT_RAN_INFO:
+ case BSSGP_PDUT_RAN_INFO_REQ:
+ case BSSGP_PDUT_RAN_INFO_ACK:
+ case BSSGP_PDUT_RAN_INFO_ERROR:
+ case BSSGP_PDUT_RAN_INFO_APP_ERROR:
+ prim = PRIM_BSSGP_RIM_PDU_TRANSFER;
+ break;
+ default:
+ /* Caller already makes sure that this can't happen. */
+ OSMO_ASSERT(false);
+ }
+
+ /* Send BSSGP RIM indication to NM */
+ memset(&nmp, 0, sizeof(nmp));
+ nmp.nsei = nsei;
+ nmp.bvci = bvci;
+ nmp.tp = tp;
+ osmo_prim_init(&nmp.oph, SAP_BSSGP_RIM, prim, PRIM_OP_INDICATION, msg);
+ bssgp_prim_cb(&nmp.oph, NULL);
+
+ return 0;
+}
/* One element (msgb) in a BSSGP Flow Control queue */
struct bssgp_fc_queue_element {
@@ -1159,6 +1192,15 @@
case BSSGP_PDUT_STATUS:
/* This is already handled in bssgp_rcvmsg() */
break;
+
+ case BSSGP_PDUT_RAN_INFO:
+ case BSSGP_PDUT_RAN_INFO_REQ:
+ case BSSGP_PDUT_RAN_INFO_ACK:
+ case BSSGP_PDUT_RAN_INFO_ERROR:
+ case BSSGP_PDUT_RAN_INFO_APP_ERROR:
+ bssgp_rx_rim(msg, tp, bvci);
+ break;
+
/* those only exist in the SGSN -> BSS direction */
case BSSGP_PDUT_PAGING_PS:
case BSSGP_PDUT_PAGING_CS: