Change in osmo-bts[master]: debian: create -doc subpackage with pdf manuals

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osmith gerrit-no-reply at lists.osmocom.org
Wed May 29 10:14:11 UTC 2019 

osmith has uploaded this change for review. ( https://gerrit.osmocom.org/14247


Change subject: debian: create -doc subpackage with pdf manuals
......................................................................

debian: create -doc subpackage with pdf manuals

I have verified, that the resulting debian packages build in my own OBS
namespace (see the -doc packages):
https://download.opensuse.org/repositories/home:/osmith42/Debian_9.0/all/
https://build.opensuse.org/project/show/home:osmith42

Depends: Ib7251cca9116151e473798879375cd5eb48ff3ad (osmo-ci)
Related: OS#3899
Change-Id: I6d7a182d0a668693a5014aca0edc50ada9ac0d0f
---
M include/osmo-bts/bts.h
M include/osmo-bts/gsm_data_shared.h
M src/common/pcu_sock.c
M src/common/rsl.c
M src/common/sysinfo.c
5 files changed, 63 insertions(+), 9 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/47/14247/1

diff --git a/include/osmo-bts/bts.h b/include/osmo-bts/bts.h
index d7c4bbf..970fb1b 100644
--- a/include/osmo-bts/bts.h
+++ b/include/osmo-bts/bts.h
@@ -48,6 +48,7 @@
 		      int is_ag_res);
 
 uint8_t *bts_sysinfo_get(struct gsm_bts *bts, const struct gsm_time *g_time);
+void regenerate_si3_restoctets(struct gsm_bts *bts);
 uint8_t *lchan_sacch_get(struct gsm_lchan *lchan);
 int lchan_init_lapdm(struct gsm_lchan *lchan);
 
diff --git a/include/osmo-bts/gsm_data_shared.h b/include/osmo-bts/gsm_data_shared.h
index 415e6bc..90772e2 100644
--- a/include/osmo-bts/gsm_data_shared.h
+++ b/include/osmo-bts/gsm_data_shared.h
@@ -15,6 +15,7 @@
 #include <osmocom/gsm/rxlev_stat.h>
 #include <osmocom/gsm/sysinfo.h>
 #include <osmocom/gsm/meas_rep.h>
+#include <osmocom/gsm/gsm48_rest_octets.h>
 #include <osmocom/gsm/protocol/gsm_04_08.h>
 #include <osmocom/gsm/protocol/gsm_08_58.h>
 #include <osmocom/gsm/protocol/gsm_12_21.h>
@@ -620,6 +621,10 @@
 	/* offsets used while generating SI2quater */
 	size_t e_offset;
 	size_t u_offset;
+	/* decoded SI3 rest octets - *unmodified* as received from BSC */
+	struct osmo_gsm48_si_ro_info si3_ro_decoded;
+	/* is SI3 GPRS Indicator currently disabled due to lack of PCU connection? */
+	bool si3_gprs_ind_disabled;
 
 	/* ip.accesss Unit ID's have Site/BTS/TRX layout */
 	union {
diff --git a/src/common/pcu_sock.c b/src/common/pcu_sock.c
index e4f2d66..39b4568 100644
--- a/src/common/pcu_sock.c
+++ b/src/common/pcu_sock.c
@@ -1,6 +1,6 @@
 /* pcu_sock.c: Connect from PCU via unix domain socket */
 
-/* (C) 2008-2010 by Harald Welte <laforge at gnumonks.org>
+/* (C) 2008-2019 by Harald Welte <laforge at gnumonks.org>
  * (C) 2009-2012 by Andreas Eversberg <jolly at eversberg.eu>
  * (C) 2012 by Holger Hans Peter Freyther
  * All Rights Reserved
@@ -598,6 +598,9 @@
 		oml_tx_failure_event_rep(&bts->gprs.cell.mo, NM_SEVER_CEASED, OSMO_EVT_PCU_VERS, txt->text);
 		osmo_strlcpy(bts->pcu_version, txt->text, MAX_VERSION_LENGTH);
 
+		/* patch SI3 to advertise GPRS, *if* the SI3 sent by BSC said so */
+		regenerate_si3_restoctets(bts);
+
 		if (GSM_BTS_HAS_SI(bts, SYSINFO_TYPE_13))
 			return pcu_tx_si13(bts, true);
 
@@ -741,6 +744,9 @@
 	bfd->fd = -1;
 	osmo_fd_unregister(bfd);
 
+	/* patch SI3 to remove GPRS indicator */
+	regenerate_si3_restoctets(bts);
+
 	/* re-enable the generation of ACCEPT for new connections */
 	state->listen_bfd.when |= BSC_FD_READ;
 
diff --git a/src/common/rsl.c b/src/common/rsl.c
index f76a006..b96182f 100644
--- a/src/common/rsl.c
+++ b/src/common/rsl.c
@@ -1,7 +1,7 @@
 /* GSM TS 08.58 RSL, BTS Side */
 
 /* (C) 2011 by Andreas Eversberg <jolly at eversberg.eu>
- * (C) 2011-2017 by Harald Welte <laforge at gnumonks.org>
+ * (C) 2011-2019 by Harald Welte <laforge at gnumonks.org>
  *
  * All Rights Reserved
  *
@@ -360,12 +360,18 @@
 
 		bts->si_valid |= (1 << osmo_si);
 
-		if (SYSINFO_TYPE_3 == osmo_si && trx->nr == 0 &&
-		    num_agch(trx, "RSL") != 1) {
-			lchan_deactivate(&trx->bts->c0->ts[0].lchan[CCCH_LCHAN]);
-			/* will be reactivated by sapi_deactivate_cb() */
-			trx->bts->c0->ts[0].lchan[CCCH_LCHAN].rel_act_kind =
-				LCHAN_REL_ACT_REACT;
+		if (SYSINFO_TYPE_3 == osmo_si) {
+			if (trx->nr == 0 && num_agch(trx, "RSL") != 1) {
+				lchan_deactivate(&trx->bts->c0->ts[0].lchan[CCCH_LCHAN]);
+				/* will be reactivated by sapi_deactivate_cb() */
+				trx->bts->c0->ts[0].lchan[CCCH_LCHAN].rel_act_kind =
+					LCHAN_REL_ACT_REACT;
+			}
+			/* decode original SI3 Rest Octets as sent by BSC */
+			osmo_gsm48_rest_octets_si3_decode(&bts->si3_ro_decoded, GSM_BTS_SI(bts, osmo_si));
+			/* patch out GPRS indicator from binary if PCU is not connected; will be enabled
+			 * after PCU connects */
+			regenerate_si3_restoctets(bts);
 		}
 
 		if (SYSINFO_TYPE_13 == osmo_si)
@@ -387,6 +393,8 @@
 			get_value_string(osmo_sitype_strs, osmo_si));
 		if (SYSINFO_TYPE_13 == osmo_si)
 			pcu_tx_si13(trx->bts, false);
+		if (SYSINFO_TYPE_3 == osmo_si)
+			memset(&bts->si3_ro_decoded, 0, sizeof(bts->si3_ro_decoded));
 	}
 	osmo_signal_dispatch(SS_GLOBAL, S_NEW_SYSINFO, bts);
 
diff --git a/src/common/sysinfo.c b/src/common/sysinfo.c
index e4a05c8..c41f9d6 100644
--- a/src/common/sysinfo.c
+++ b/src/common/sysinfo.c
@@ -1,4 +1,4 @@
-/* (C) 2011 by Harald Welte <laforge at gnumonks.org>
+/* (C) 2011-2019 by Harald Welte <laforge at gnumonks.org>
  *
  * All Rights Reserved
  *
@@ -24,6 +24,7 @@
 
 #include <osmo-bts/logging.h>
 #include <osmo-bts/gsm_data.h>
+#include <osmo-bts/pcu_if.h>
 
 /* properly increment SI2q index and return SI2q data for scheduling */
 static inline uint8_t *get_si2q_inc_index(struct gsm_bts *bts)
@@ -175,3 +176,36 @@
 	LOGPLCHAN(lchan, DL1P, LOGL_NOTICE, "SACCH no SI available\n");
 	return NULL;
 }
+
+/* re-generate SI3 restoctets with GPRS indicator depending on the PCU socket connection state */
+void regenerate_si3_restoctets(struct gsm_bts *bts)
+{
+	uint8_t *si3_buf = GSM_BTS_SI(bts, SYSINFO_TYPE_3);
+	size_t si3_size = offsetof(struct gsm48_system_information_type_3, rest_octets);
+	struct osmo_gsm48_si_ro_info si3ro_tmp;
+
+	/* If BSC has never set SI3, there's nothing to patch */
+	if (!GSM_BTS_HAS_SI(bts, SYSINFO_TYPE_3))
+		return;
+
+	/* If SI3 from BSC doesn't have a GPRS indicator, we won't have anything to patch */
+	if (!bts->si3_ro_decoded.gprs_ind.present)
+		return;
+
+	/* Create a temporary copy and patch that, if no PCU is around */
+	si3ro_tmp = bts->si3_ro_decoded;
+	if (!pcu_connected()) {
+		if (!bts->si3_gprs_ind_disabled)
+			LOGP(DPCU, LOGL_NOTICE, "Disabling GPRS Indicator in SI3 (No PCU connected)\n");
+		bts->si3_gprs_ind_disabled = true;
+		si3ro_tmp.gprs_ind.present = 0;
+	} else {
+		if (bts->si3_gprs_ind_disabled)
+			LOGP(DPCU, LOGL_NOTICE, "Enabling GPRS Indicator in SI3 (PCU connected)\n");
+		bts->si3_gprs_ind_disabled = false;
+		si3ro_tmp.gprs_ind.present = 1; /* is a no-op as we copy from bts->si3_ro_decoded */
+	}
+
+	/* re-generate the binary SI3 rest octets */
+	osmo_gsm48_rest_octets_si3_encode(si3_buf + si3_size, &si3ro_tmp);
+}

-- 
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I6d7a182d0a668693a5014aca0edc50ada9ac0d0f
Gerrit-Change-Number: 14247
Gerrit-PatchSet: 1
Gerrit-Owner: osmith <osmith at sysmocom.de>
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