<p>daniel has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/osmo-sgsn/+/22252">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">gbproxy: Use IMSI cache to handle PAGING_PS_REJECT<br><br>Change-Id: I7d91d9ecfba757dc81edcf05efb7a2158348099d<br>Related: OS#4472, OS#4951<br>---<br>M src/gbproxy/gb_proxy.c<br>1 file changed, 23 insertions(+), 0 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/52/22252/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/gbproxy/gb_proxy.c b/src/gbproxy/gb_proxy.c</span><br><span>index 9db009c..6f8d0e0 100644</span><br><span>--- a/src/gbproxy/gb_proxy.c</span><br><span>+++ b/src/gbproxy/gb_proxy.c</span><br><span>@@ -934,6 +934,20 @@</span><br><span>                       goto err_no_bvc;</span><br><span>             gbprox_bss2sgsn_tlli(from_bvc->cell, msg, &tlli, true);</span><br><span>               break;</span><br><span style="color: hsl(120, 100%, 40%);">+        case BSSGP_PDUT_PAGING_PS_REJECT:</span><br><span style="color: hsl(120, 100%, 40%);">+     {</span><br><span style="color: hsl(120, 100%, 40%);">+             /* Route according to IMSI<->NSE cache entry */</span><br><span style="color: hsl(120, 100%, 40%);">+         struct osmo_mobile_identity mi;</span><br><span style="color: hsl(120, 100%, 40%);">+               const uint8_t *mi_data = TLVP_VAL(&tp, BSSGP_IE_IMSI);</span><br><span style="color: hsl(120, 100%, 40%);">+            uint8_t mi_len = TLVP_LEN(&tp, BSSGP_IE_IMSI);</span><br><span style="color: hsl(120, 100%, 40%);">+            osmo_mobile_identity_decode(&mi, mi_data, mi_len, false);</span><br><span style="color: hsl(120, 100%, 40%);">+         nse = gbproxy_nse_by_imsi(nse->cfg, mi.imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+              if (!nse) {</span><br><span style="color: hsl(120, 100%, 40%);">+                   return bssgp_tx_status(BSSGP_CAUSE_INV_MAND_INF, NULL, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+          }</span><br><span style="color: hsl(120, 100%, 40%);">+             rc = gbprox_relay2nse(msg, nse, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+           break;</span><br><span style="color: hsl(120, 100%, 40%);">+        }</span><br><span>    default:</span><br><span>             LOGPNSE(nse, LOGL_ERROR, "Rx %s: Implementation missing\n", pdut_name);</span><br><span>            break;</span><br><span>@@ -1135,6 +1149,15 @@</span><br><span>                      rc = gbprox_relay2peer(msg, sgsn_bvc->cell->bss_bvc, ns_bvci);</span><br><span>                 break;</span><br><span>       case BSSGP_PDUT_PAGING_PS:</span><br><span style="color: hsl(120, 100%, 40%);">+    {</span><br><span style="color: hsl(120, 100%, 40%);">+             /* Cache the IMSI<->NSE to route PAGING REJECT */</span><br><span style="color: hsl(120, 100%, 40%);">+               struct osmo_mobile_identity mi;</span><br><span style="color: hsl(120, 100%, 40%);">+               const uint8_t *mi_data = TLVP_VAL(&tp, BSSGP_IE_IMSI);</span><br><span style="color: hsl(120, 100%, 40%);">+            uint8_t mi_len = TLVP_LEN(&tp, BSSGP_IE_IMSI);</span><br><span style="color: hsl(120, 100%, 40%);">+            osmo_mobile_identity_decode(&mi, mi_data, mi_len, false);</span><br><span style="color: hsl(120, 100%, 40%);">+         gbproxy_imsi_cache_update(nse, mi.imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+              /* fall through */</span><br><span style="color: hsl(120, 100%, 40%);">+    }</span><br><span>    case BSSGP_PDUT_PAGING_CS:</span><br><span>           /* process the paging request (LAI/RAI lookup) */</span><br><span>            rc = gbprox_rx_paging(nse, msg, pdut_name, &tp, ns_bvci);</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/osmo-sgsn/+/22252">change 22252</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/c/osmo-sgsn/+/22252"/><meta itemprop="name" content="View Change"/></div></div>

<div style="display:none"> Gerrit-Project: osmo-sgsn </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: I7d91d9ecfba757dc81edcf05efb7a2158348099d </div>
<div style="display:none"> Gerrit-Change-Number: 22252 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: daniel <dwillmann@sysmocom.de> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>