<p>dexter has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/osmo-bsc/+/21084">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">abis_rsl: parse cm3 and indicate ACCH repetition cap to BTS<br><br>In order to activate FACCH/SACCH repetition on the BTS, the classmark 3<br>IE in the CLASSMARK CHANGE message must be parsed and depending on the<br>Repeated ACCH Capability bit the RSL_IE_OSMO_REP_ACCH_CAP is added to<br>the RSL CHAN ACT und RSL CHAN MODE MODIFY. Since<br>RSL_IE_OSMO_REP_ACCH_CAP is a propritary IE, it may only be added for<br>BTS type osmo-bts.<br><br>Change-Id: I39ae439d05562b35b2e47774dc92f8789fea1a57<br>Depends: libosmocore Ic8b2bfd00330235f5bed00771e421588abfaac1f<br>Related: OS#4796 SYS#5114<br>---<br>M include/osmocom/bsc/gsm_data.h<br>M src/osmo-bsc/abis_rsl.c<br>M src/osmo-bsc/gsm_08_08.c<br>3 files changed, 33 insertions(+), 0 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/84/21084/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/include/osmocom/bsc/gsm_data.h b/include/osmocom/bsc/gsm_data.h</span><br><span>index ed40e36..d75cb50 100644</span><br><span>--- a/include/osmocom/bsc/gsm_data.h</span><br><span>+++ b/include/osmocom/bsc/gsm_data.h</span><br><span>@@ -322,6 +322,10 @@</span><br><span> enum subscr_sccp_state state;</span><br><span> } lb;</span><br><span> } lcs;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Set to true when Repeated ACCH Capability bit in Classmark 3 is set.</span><br><span style="color: hsl(120, 100%, 40%);">+ * see also: 3GPP TS 24.008, section 10.5.1.7 */</span><br><span style="color: hsl(120, 100%, 40%);">+ bool repeated_acch_capability;</span><br><span> };</span><br><span> </span><br><span> </span><br><span>diff --git a/src/osmo-bsc/abis_rsl.c b/src/osmo-bsc/abis_rsl.c</span><br><span>index 858c683..6bcacdf 100644</span><br><span>--- a/src/osmo-bsc/abis_rsl.c</span><br><span>+++ b/src/osmo-bsc/abis_rsl.c</span><br><span>@@ -457,6 +457,22 @@</span><br><span> lchan->mr_bts_lv + 1);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+/* indicate FACCH/SACCH Repetition to be performed by BTS,</span><br><span style="color: hsl(120, 100%, 40%);">+ * see also: 3GPP TS 44.006, section 10 and 11 */</span><br><span style="color: hsl(120, 100%, 40%);">+static void put_rsl_ie_osmo_rep_acch_cap(struct gsm_lchan *lchan, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!lchan->conn)</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* The RSL_IE_OSMO_REP_ACCH_CAP IE is a propritary IE, that can only</span><br><span style="color: hsl(120, 100%, 40%);">+ * be used with osmo-bts type BTSs */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (conn_get_bts(lchan->conn)->model->type != GSM_BTS_TYPE_OSMOBTS)</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (lchan->conn && lchan->conn->repeated_acch_capability)</span><br><span style="color: hsl(120, 100%, 40%);">+ msgb_tv_fixed_put(msg, RSL_IE_OSMO_REP_ACCH_CAP, 0, NULL);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> /* Chapter 8.4.1 */</span><br><span> int rsl_tx_chan_activ(struct gsm_lchan *lchan, uint8_t act_type, uint8_t ho_ref)</span><br><span> {</span><br><span>@@ -552,6 +568,7 @@</span><br><span> better skip sending it unless we know for sure what each expects. */</span><br><span> </span><br><span> mr_config_for_bts(lchan, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ put_rsl_ie_osmo_rep_acch_cap(lchan, msg);</span><br><span> </span><br><span> msg->dst = trx->rsl_link;</span><br><span> </span><br><span>@@ -590,6 +607,7 @@</span><br><span> }</span><br><span> </span><br><span> mr_config_for_bts(lchan, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ put_rsl_ie_osmo_rep_acch_cap(lchan, msg);</span><br><span> </span><br><span> msg->dst = lchan->ts->trx->rsl_link;</span><br><span> </span><br><span>diff --git a/src/osmo-bsc/gsm_08_08.c b/src/osmo-bsc/gsm_08_08.c</span><br><span>index 2c51c95..3547972 100644</span><br><span>--- a/src/osmo-bsc/gsm_08_08.c</span><br><span>+++ b/src/osmo-bsc/gsm_08_08.c</span><br><span>@@ -34,6 +34,7 @@</span><br><span> #include <osmocom/bsc/lcs_loc_req.h></span><br><span> </span><br><span> #include <osmocom/gsm/protocol/gsm_08_08.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/protocol/gsm_04_08.h></span><br><span> #include <osmocom/gsm/gsm0808.h></span><br><span> #include <osmocom/gsm/mncc.h></span><br><span> #include <osmocom/gsm/gsm48.h></span><br><span>@@ -582,6 +583,7 @@</span><br><span> const uint8_t *cm3, uint8_t cm3_len)</span><br><span> {</span><br><span> struct gsm48_classmark2 *cm2_parsed = (struct gsm48_classmark2 *)cm2;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_classmark3 cm3_parsed;</span><br><span> int8_t rc8;</span><br><span> int rc;</span><br><span> struct msgb *resp;</span><br><span>@@ -602,6 +604,15 @@</span><br><span> }</span><br><span> conn_update_ms_power_class(conn, rc8);</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ rc = gsm48_decode_classmark3(&cm3_parsed, cm3, cm3_len);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc < 0) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMSC, LOGL_NOTICE, "Unable to decode classmark3 during CM Update.\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ } else {</span><br><span style="color: hsl(120, 100%, 40%);">+ conn->repeated_acch_capability = false;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (cm3_parsed.repeated_acch_capability)</span><br><span style="color: hsl(120, 100%, 40%);">+ conn->repeated_acch_capability = true;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> if (!msc_connected(conn))</span><br><span> return;</span><br><span> </span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/osmo-bsc/+/21084">change 21084</a>. 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<div style="display:none"> Gerrit-Project: osmo-bsc </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: I39ae439d05562b35b2e47774dc92f8789fea1a57 </div>
<div style="display:none"> Gerrit-Change-Number: 21084 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: dexter <pmaier@sysmocom.de> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>