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authorHolger Hans Peter Freyther <holger@moiji-mobile.com>2015-04-23 11:33:35 -0400
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2015-05-05 21:11:16 +0200
commit8cedded88c9a0c4c486f987b818ccba57e96421e (patch)
treeec655590774847918a31c7a0c2584ebde759d9c7 /openbsc/src/gprs/sgsn_libgtp.c
parent9ba273d365ac731a9c3ff285821062c346724390 (diff)
sgsn: Store subscribed QoS and attempt to use it
sgsn_create_pdp_ctx should use the subscribed QoS. When selecting the PDP context we inject the QoS to be used into the TLV structure and use it during the request. Assume a "qos-Subscribed" structure only with three bytes and prepend the Allocation/Retention policy to the request.
Diffstat (limited to 'openbsc/src/gprs/sgsn_libgtp.c')
-rw-r--r--openbsc/src/gprs/sgsn_libgtp.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c
index 25b30d0fd..dd02457ff 100644
--- a/openbsc/src/gprs/sgsn_libgtp.c
+++ b/openbsc/src/gprs/sgsn_libgtp.c
@@ -123,6 +123,8 @@ struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn,
struct sgsn_pdp_ctx *pctx;
struct pdp_t *pdp;
uint64_t imsi_ui64;
+ size_t qos_len;
+ const uint8_t *qos;
int rc;
LOGP(DGPRS, LOGL_ERROR, "Create PDP Context\n");
@@ -188,12 +190,20 @@ struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn,
memcpy(pdp->pco_req.v, TLVP_VAL(tp, GSM48_IE_GSM_PROTO_CONF_OPT),
pdp->pco_req.l);
- /* QoS options from GMM */
- pdp->qos_req.l = TLVP_LEN(tp, OSMO_IE_GSM_REQ_QOS);
+ /* QoS options from GMM or remote */
+ if (TLVP_LEN(tp, OSMO_IE_GSM_SUB_QOS) > 0) {
+ qos_len = TLVP_LEN(tp, OSMO_IE_GSM_SUB_QOS);
+ qos = TLVP_VAL(tp, OSMO_IE_GSM_SUB_QOS);
+ } else {
+ qos_len = TLVP_LEN(tp, OSMO_IE_GSM_REQ_QOS);
+ qos = TLVP_VAL(tp, OSMO_IE_GSM_REQ_QOS);
+ }
+
+ pdp->qos_req.l = qos_len + 1;
if (pdp->qos_req.l > sizeof(pdp->qos_req.v))
pdp->qos_req.l = sizeof(pdp->qos_req.v);
- memcpy(pdp->qos_req.v, TLVP_VAL(tp, OSMO_IE_GSM_REQ_QOS),
- pdp->qos_req.l);
+ pdp->qos_req.v[0] = 0; /* Allocation/Retention policy */
+ memcpy(&pdp->qos_req.v[1], qos, pdp->qos_req.l - 1);
/* SGSN address for control plane */
pdp->gsnlc.l = sizeof(sgsn->cfg.gtp_listenaddr.sin_addr);