From 4bd931f96d75d3e71b73a06e67f84ffdcab9caf6 Mon Sep 17 00:00:00 2001 From: Holger Hans Peter Freyther Date: Thu, 23 Apr 2015 11:50:41 -0400 Subject: sgsn: Handle different levels of QoS If QoS is only three bytes it does not include the allocation/ retention policy. Otherwise it does. Copy it depending on that. We should have a macro for the clamping to reduce code duplication. The insanity does come from the MAP data and this seems to be the easiest in terms of complexity. It is an array of bytes that is transported from MAPProxy to the SGSN and then simply forwarded. The case of more than three bytes is neither unit nor manually tested so far. --- openbsc/src/gprs/sgsn_libgtp.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c index dd02457ff..eee3ef21c 100644 --- a/openbsc/src/gprs/sgsn_libgtp.c +++ b/openbsc/src/gprs/sgsn_libgtp.c @@ -199,11 +199,18 @@ struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn, 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); - pdp->qos_req.v[0] = 0; /* Allocation/Retention policy */ - memcpy(&pdp->qos_req.v[1], qos, pdp->qos_req.l - 1); + if (qos_len <= 3) { + 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); + pdp->qos_req.v[0] = 0; /* Allocation/Retention policy */ + memcpy(&pdp->qos_req.v[1], qos, pdp->qos_req.l - 1); + } else { + pdp->qos_req.l = qos_len; + if (pdp->qos_req.l > sizeof(pdp->qos_req.v)) + pdp->qos_req.l = sizeof(pdp->qos_req.v); + memcpy(pdp->qos_req.v, qos, pdp->qos_req.l); + } /* SGSN address for control plane */ pdp->gsnlc.l = sizeof(sgsn->cfg.gtp_listenaddr.sin_addr); -- cgit v1.2.3