hsl: Remove the support for the HSL bts from OpenBSC

The support has been implemented for an old model, we were told that
newer versions would be made incompatible with OpenBSC. Ther are
various warnings in the code and coverity has found some new ones.

Just remove the code as we don't know of anyone using this code.

1 files changed, 0 insertions, 309 deletions

diff --git a/openbsc/src/libbsc/bts_hsl_femtocell.c b/openbsc/src/libbsc/bts_hsl_femtocell.c
deleted file mode 100644
index 1ce3eaaa1..000000000
--- a/openbsc/src/libbsc/bts_hsl_femtocell.c
+++ /dev/null
@@ -1,309 +0,0 @@
-/* OpenBSC support code for HSL Femtocell */
-
-/* (C) 2011 by Harald Welte <laforge@gnumonks.org>
- * (C) 2011 by OnWaves
- *
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <inttypes.h>
-
-#include <arpa/inet.h>
-
-#include <osmocom/gsm/tlv.h>
-#include <openbsc/gsm_data.h>
-#include <openbsc/abis_nm.h>
-#include <openbsc/abis_rsl.h>
-#include <openbsc/signal.h>
-#include <openbsc/debug.h>
-#include <osmocom/core/logging.h>
-#include <osmocom/abis/e1_input.h>
-#include <osmocom/abis/ipaccess.h>
-
-static int bts_model_hslfemto_start(struct gsm_network *net);
-static void bts_model_hslfemto_e1line_bind_ops(struct e1inp_line *line);
-
-static struct gsm_bts_model model_hslfemto = {
-	.type = GSM_BTS_TYPE_HSL_FEMTO,
-	.start = bts_model_hslfemto_start,
-	.e1line_bind_ops = &bts_model_hslfemto_e1line_bind_ops,
-	.nm_att_tlvdef = {
-		.def = {
-			/* no HSL specific OML attributes that we know of */
-		},
-	},
-};
-
-
-static const uint8_t l1_msg[] = {
-#ifdef HSL_SR_1_0
-	0x80, 0x8a,
-#else
-	0x81, 0x8a,
-#endif
-		0xC4, 0x0b,
-};
-
-static const uint8_t conn_trau_msg[] = {
-#ifdef HSL_SR_1_0
-	0x80, 0x81,
-#else
-	0x81, 0x81,
-#endif
-		0xC1, 16,
-			0x02, 0x00, 0x00, 0x00, 0xC0, 0xA8, 0xEA, 0x01,
-			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-static const uint8_t conn_trau_msg2[] = {
-#ifdef HSL_SR_1_0
-	0x80, 0x81,
-#else
-	0x81, 0x81,
-#endif
-		0xC1, 16,
-			0x02, 0x00, 0xd4, 0x07, 0xC0, 0xA8, 0xEA, 0x01,
-			0x38, 0xA4, 0x45, 0x00, 0x04, 0x59, 0x40, 0x00
-};
-
-static uint8_t oml_arfcn_bsic[] = {
-#ifdef HSL_SR_1_0
-	0x81, 0x80, 0x00, 10,
-#else
-	0x80, 0x80, 0x00, 10,
-#endif
-		NM_MT_SET_BTS_ATTR, NM_OC_BTS, 0xff, 0xff, 0xff,
-			NM_ATT_BCCH_ARFCN, 0x03, 0x67,
-			NM_ATT_BSIC, 0x00
-};
-
-static inline struct msgb *hsl_alloc_msgb(void)
-{
-	return msgb_alloc_headroom(1024, 127, "HSL");
-}
-
-static int hslfemto_bootstrap_om(struct gsm_bts *bts)
-{
-	struct msgb *msg;
-
-	msg = hsl_alloc_msgb();
-	msgb_put(msg, sizeof(l1_msg));
-	memcpy(msg->data, l1_msg, sizeof(l1_msg));
-	msg->dst = bts->c0->rsl_link;
-	abis_rsl_sendmsg(msg);
-
-#if 1
-	msg = hsl_alloc_msgb();
-	msgb_put(msg, sizeof(conn_trau_msg));
-	memcpy(msg->data, conn_trau_msg, sizeof(conn_trau_msg));
-	msg->dst = bts->c0->rsl_link;
-	abis_rsl_sendmsg(msg);
-#endif
-	msg = hsl_alloc_msgb();
-	msgb_put(msg, sizeof(conn_trau_msg2));
-	memcpy(msg->data, conn_trau_msg2, sizeof(conn_trau_msg2));
-	msg->dst = bts->c0->rsl_link;
-	abis_rsl_sendmsg(msg);
-
-	*((uint16_t *)oml_arfcn_bsic+10) = htons(bts->c0->arfcn);
-	oml_arfcn_bsic[13] = bts->bsic;
-
-	msg = hsl_alloc_msgb();
-	msgb_put(msg, sizeof(oml_arfcn_bsic));
-	memcpy(msg->data, oml_arfcn_bsic, sizeof(oml_arfcn_bsic));
-	msg->dst = bts->c0->rsl_link;
-	abis_sendmsg(msg);
-
-	/* Delay the OPSTART until after SI have been set via RSL */
-	//abis_nm_opstart(bts, NM_OC_BTS, 255, 255, 255);
-
-	return 0;
-}
-
-/* Callback function to be called every time we receive a signal from INPUT */
-static int inp_sig_cb(unsigned int subsys, unsigned int signal,
-		      void *handler_data, void *signal_data)
-{
-	struct input_signal_data *isd = signal_data;
-
-	if (subsys != SS_L_INPUT)
-		return 0;
-
-	switch (signal) {
-	case S_L_INP_TEI_UP:
-		switch (isd->link_type) {
-		case E1INP_SIGN_OML:
-			if (isd->trx->bts->type == GSM_BTS_TYPE_HSL_FEMTO)
-				hslfemto_bootstrap_om(isd->trx->bts);
-			break;
-		}
-	}
-
-	return 0;
-}
-
-static struct gsm_network *hsl_gsmnet;
-
-static int bts_model_hslfemto_start(struct gsm_network *net)
-{
-	model_hslfemto.features.data = &model_hslfemto._features_data[0];
-	model_hslfemto.features.data_len = sizeof(model_hslfemto._features_data);
-
-	gsm_btsmodel_set_feature(&model_hslfemto, BTS_FEAT_GPRS);
-	gsm_btsmodel_set_feature(&model_hslfemto, BTS_FEAT_EGPRS);
-
-	osmo_signal_register_handler(SS_L_INPUT, inp_sig_cb, NULL);
-
-	hsl_gsmnet = net;
-	return 0;
-}
-
-int bts_model_hslfemto_init(void)
-{
-	return gsm_bts_model_register(&model_hslfemto);
-}
-
-#define OML_UP		0x0001
-#define RSL_UP		0x0002
-
-struct gsm_bts *find_bts_by_serno(struct gsm_network *net, uint64_t serno)
-{
-	struct gsm_bts *bts;
-
-	llist_for_each_entry(bts, &net->bts_list, list) {
-		if (bts->type != GSM_BTS_TYPE_HSL_FEMTO)
-			continue;
-
-		if (serno == bts->hsl.serno)
-			return bts;
-	}
-	return NULL;
-}
-
-/* This function is called once the OML/RSL link becomes up. */
-static struct e1inp_sign_link *
-hsl_sign_link_up(void *unit_data, struct e1inp_line *line,
-		 enum e1inp_sign_type type)
-{
-	struct hsl_unit *dev = unit_data;
-	struct gsm_bts *bts;
-
-	bts = find_bts_by_serno(hsl_gsmnet, dev->serno);
-	if (!bts) {
-		LOGP(DLINP, LOGL_ERROR, "Unable to find BTS config for "
-				"serial number %"PRIx64"\n", dev->serno);
-		return NULL;
-	}
-	DEBUGP(DLINP, "Identified HSL BTS Serial Number %"PRIx64"\n", dev->serno);
-
-	/* we shouldn't hardcode it, but HSL femto also hardcodes it... */
-	bts->oml_tei = 255;
-	bts->c0->rsl_tei = 0;
-	bts->oml_link = e1inp_sign_link_create(&line->ts[E1INP_SIGN_OML-1],
-					       E1INP_SIGN_OML, bts->c0,
-					       bts->oml_tei, 0);
-	bts->c0->rsl_link = e1inp_sign_link_create(&line->ts[E1INP_SIGN_OML-1],
-						   E1INP_SIGN_RSL, bts->c0,
-						   bts->c0->rsl_tei, 0);
-	e1inp_event(&line->ts[E1INP_SIGN_OML-1], S_L_INP_TEI_UP, 255, 0);
-	e1inp_event(&line->ts[E1INP_SIGN_OML-1], S_L_INP_TEI_UP, 0, 0);
-	bts->ip_access.flags |= OML_UP;
-	bts->ip_access.flags |= (RSL_UP << 0);
-
-	return bts->oml_link;
-}
-
-void hsl_drop_oml(struct gsm_bts *bts)
-{
-	if (!bts->oml_link)
-		return;
-
-	e1inp_sign_link_destroy(bts->oml_link);
-	bts->oml_link = NULL;
-
-	e1inp_sign_link_destroy(bts->c0->rsl_link);
-	bts->c0->rsl_link = NULL;
-
-	bts->ip_access.flags = 0;
-}
-
-static void hsl_sign_link_down(struct e1inp_line *line)
-{
-	/* No matter what link went down, we close both signal links. */
-	struct e1inp_ts *ts = &line->ts[E1INP_SIGN_OML-1];
-	struct e1inp_sign_link *link;
-
-	llist_for_each_entry(link, &ts->sign.sign_links, list) {
-		struct gsm_bts *bts = link->trx->bts;
-
-		hsl_drop_oml(bts);
-		/* Yes, we only use the first element of the list. */
-		break;
-       }
-}
-
-/* This function is called if we receive one OML/RSL message. */
-static int hsl_sign_link(struct msgb *msg)
-{
-	int ret = 0;
-	struct e1inp_sign_link *link = msg->dst;
-	struct e1inp_ts *e1i_ts = link->ts;
-
-	switch (link->type) {
-	case E1INP_SIGN_OML:
-		if (!(link->trx->bts->ip_access.flags & OML_UP)) {
-			e1inp_event(e1i_ts, S_L_INP_TEI_UP,
-					link->tei, link->sapi);
-			link->trx->bts->ip_access.flags |= OML_UP;
-		}
-		ret = abis_nm_rcvmsg(msg);
-		break;
-	case E1INP_SIGN_RSL:
-		if (!(link->trx->bts->ip_access.flags &
-			(RSL_UP << link->trx->nr))) {
-			e1inp_event(e1i_ts, S_L_INP_TEI_UP,
-					link->tei, link->sapi);
-			link->trx->bts->ip_access.flags |=
-					(RSL_UP << link->trx->nr);
-		}
-		ret = abis_rsl_rcvmsg(msg);
-		break;
-	default:
-		LOGP(DLINP, LOGL_ERROR, "Unknown signal link type %d\n",
-			link->type);
-		msgb_free(msg);
-	break;
-	}
-	return ret;
-}
-
-static struct e1inp_line_ops hsl_e1inp_line_ops = {
-	.cfg = {
-		.ipa = {
-			.addr	= "0.0.0.0",
-			.role	= E1INP_LINE_R_BSC,
-		},
-	},
-       .sign_link_up	= hsl_sign_link_up,
-       .sign_link_down	= hsl_sign_link_down,
-       .sign_link	= hsl_sign_link,
-};
-
-static void bts_model_hslfemto_e1line_bind_ops(struct e1inp_line *line)
-{
-	e1inp_line_bind_ops(line, &hsl_e1inp_line_ops);
-}