bsc: Move the osmo_bsc_rf file into the libbsc code and rename

The nitb will provide the RF interface as well.

2 files changed, 1 insertions, 366 deletions

diff --git a/openbsc/src/osmo-bsc/Makefile.am b/openbsc/src/osmo-bsc/Makefile.am
index ea74c7805..8f7d25b82 100644
--- a/openbsc/src/osmo-bsc/Makefile.am
+++ b/openbsc/src/osmo-bsc/Makefile.am
@@ -5,7 +5,7 @@ AM_LDFLAGS = $(COVERAGE_LDFLAGS)
 bin_PROGRAMS = osmo-bsc
 
 
-osmo_bsc_SOURCES = osmo_bsc_main.c osmo_bsc_rf.c osmo_bsc_vty.c osmo_bsc_api.c \
+osmo_bsc_SOURCES = osmo_bsc_main.c osmo_bsc_vty.c osmo_bsc_api.c \
 		   osmo_bsc_grace.c osmo_bsc_msc.c osmo_bsc_sccp.c \
 		   osmo_bsc_filter.c osmo_bsc_bssap.c osmo_bsc_audio.c
 # once again since TRAU uses CC symbol :(
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_rf.c b/openbsc/src/osmo-bsc/osmo_bsc_rf.c
deleted file mode 100644
index e3f4e9972..000000000
--- a/openbsc/src/osmo-bsc/osmo_bsc_rf.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/* RF Ctl handling socket */
-
-/* (C) 2010 by Harald Welte <laforge@gnumonks.org>
- * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2010 by On-Waves
- * 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 <openbsc/osmo_bsc_rf.h>
-#include <openbsc/debug.h>
-#include <openbsc/gsm_data.h>
-#include <openbsc/signal.h>
-#include <openbsc/osmo_msc_data.h>
-#include <openbsc/ipaccess.h>
-
-#include <osmocom/core/talloc.h>
-#include <osmocom/gsm/protocol/gsm_12_21.h>
-
-#include <sys/socket.h>
-#include <sys/un.h>
-
-#include <errno.h>
-#include <unistd.h>
-
-#define RF_CMD_QUERY '?'
-#define RF_CMD_OFF   '0'
-#define RF_CMD_ON    '1'
-#define RF_CMD_D_OFF 'd'
-#define RF_CMD_ON_G  'g'
-
-static int lock_each_trx(struct gsm_network *net, int lock)
-{
-	struct gsm_bts *bts;
-
-	llist_for_each_entry(bts, &net->bts_list, list) {
-		struct gsm_bts_trx *trx;
-		llist_for_each_entry(trx, &bts->trx_list, list) {
-			gsm_trx_lock_rf(trx, lock);
-		}
-	}
-
-	return 0;
-}
-
-static void send_resp(struct osmo_bsc_rf_conn *conn, char send)
-{
-	struct msgb *msg;
-
-	msg = msgb_alloc(10, "RF Query");
-	if (!msg) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to allocate response msg.\n");
-		return;
-	}
-
-	msg->l2h = msgb_put(msg, 1);
-	msg->l2h[0] = send;
-
-	if (osmo_wqueue_enqueue(&conn->queue, msg) != 0) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to enqueue the answer.\n");
-		msgb_free(msg);
-		return;
-	}
-
-	return;
-}
-
-
-/*
- * Send a
- *    'g' when we are in grace mode
- *    '1' when one TRX is online,
- *    '0' otherwise
- */
-static void handle_query(struct osmo_bsc_rf_conn *conn)
-{
-	struct gsm_bts *bts;
-	char send = RF_CMD_OFF;
-
-	if (conn->rf->policy == S_RF_GRACE)
-		return send_resp(conn, RF_CMD_ON_G);
-
-	llist_for_each_entry(bts, &conn->rf->gsm_network->bts_list, list) {
-		struct gsm_bts_trx *trx;
-		llist_for_each_entry(trx, &bts->trx_list, list) {
-			if (trx->mo.nm_state.availability == NM_AVSTATE_OK &&
-			    trx->mo.nm_state.operational != NM_OPSTATE_DISABLED) {
-					send = RF_CMD_ON;
-					break;
-			}
-		}
-	}
-
-	send_resp(conn, send);
-}
-
-static void rf_check_cb(void *_data)
-{
-	struct gsm_bts *bts;
-	struct osmo_bsc_rf *rf = _data;
-
-	llist_for_each_entry(bts, &rf->gsm_network->bts_list, list) {
-		struct gsm_bts_trx *trx;
-
-		/* don't bother to check a booting or missing BTS */
-		if (!bts->oml_link || !is_ipaccess_bts(bts))
-			continue;
-
-		llist_for_each_entry(trx, &bts->trx_list, list) {
-			if (trx->mo.nm_state.availability != NM_AVSTATE_OK ||
-			    trx->mo.nm_state.operational != NM_OPSTATE_ENABLED ||
-			    trx->mo.nm_state.administrative != NM_STATE_UNLOCKED) {
-				LOGP(DNM, LOGL_ERROR, "RF activation failed. Starting again.\n");
-				ipaccess_drop_oml(bts);
-				break;
-			}
-		}
-	}
-}
-
-static void send_signal(struct osmo_bsc_rf *rf, int val)
-{
-	struct rf_signal_data sig;
-	sig.net = rf->gsm_network;
-
-	rf->policy = val;
-	osmo_signal_dispatch(SS_RF, val, &sig);
-}
-
-static int switch_rf_off(struct osmo_bsc_rf *rf)
-{
-	lock_each_trx(rf->gsm_network, 1);
-	send_signal(rf, S_RF_OFF);
-
-	return 0;
-}
-
-static void grace_timeout(void *_data)
-{
-	struct osmo_bsc_rf *rf = (struct osmo_bsc_rf *) _data;
-
-	LOGP(DLINP, LOGL_NOTICE, "Grace timeout. Disabling the TRX.\n");
-	switch_rf_off(rf);
-}
-
-static int enter_grace(struct osmo_bsc_rf *rf)
-{
-	rf->grace_timeout.cb = grace_timeout;
-	rf->grace_timeout.data = rf;
-	osmo_timer_schedule(&rf->grace_timeout, rf->gsm_network->bsc_data->mid_call_timeout, 0);
-	LOGP(DLINP, LOGL_NOTICE, "Going to switch RF off in %d seconds.\n",
-	     rf->gsm_network->bsc_data->mid_call_timeout);
-
-	send_signal(rf, S_RF_GRACE);
-	return 0;
-}
-
-static void rf_delay_cmd_cb(void *data)
-{
-	struct osmo_bsc_rf *rf = data;
-
-	switch (rf->last_request) {
-	case RF_CMD_D_OFF:
-		rf->last_state_command = "RF Direct Off";
-		osmo_timer_del(&rf->rf_check);
-		osmo_timer_del(&rf->grace_timeout);
-		switch_rf_off(rf);
-		break;
-	case RF_CMD_ON:
-		rf->last_state_command = "RF Direct On";
-		osmo_timer_del(&rf->grace_timeout);
-		lock_each_trx(rf->gsm_network, 0);
-		send_signal(rf, S_RF_ON);
-		osmo_timer_schedule(&rf->rf_check, 3, 0);
-		break;
-	case RF_CMD_OFF:
-		rf->last_state_command = "RF Scheduled Off";
-		osmo_timer_del(&rf->rf_check);
-		enter_grace(rf);
-		break;
-	}
-}
-
-static int rf_read_cmd(struct osmo_fd *fd)
-{
-	struct osmo_bsc_rf_conn *conn = fd->data;
-	char buf[1];
-	int rc;
-
-	rc = read(fd->fd, buf, sizeof(buf));
-	if (rc != sizeof(buf)) {
-		LOGP(DLINP, LOGL_ERROR, "Short read %d/%s\n", errno, strerror(errno));
-		osmo_fd_unregister(fd);
-		close(fd->fd);
-		osmo_wqueue_clear(&conn->queue);
-		talloc_free(conn);
-		return -1;
-	}
-
-	switch (buf[0]) {
-	case RF_CMD_QUERY:
-		handle_query(conn);
-		break;
-	case RF_CMD_D_OFF:
-	case RF_CMD_ON:
-	case RF_CMD_OFF:
-		conn->rf->last_request = buf[0];
-		if (!osmo_timer_pending(&conn->rf->delay_cmd))
-			osmo_timer_schedule(&conn->rf->delay_cmd, 1, 0);
-		break;
-	default:
-		conn->rf->last_state_command = "Unknown command";
-		LOGP(DLINP, LOGL_ERROR, "Unknown command %d\n", buf[0]);
-		break;
-	}
-
-	return 0;
-}
-
-static int rf_write_cmd(struct osmo_fd *fd, struct msgb *msg)
-{
-	int rc;
-
-	rc = write(fd->fd, msg->data, msg->len);
-	if (rc != msg->len) {
-		LOGP(DLINP, LOGL_ERROR, "Short write %d/%s\n", errno, strerror(errno));
-		return -1;
-	}
-
-	return 0;
-}
-
-static int rf_ctrl_accept(struct osmo_fd *bfd, unsigned int what)
-{
-	struct osmo_bsc_rf_conn *conn;
-	struct osmo_bsc_rf *rf = bfd->data;
-	struct sockaddr_un addr;
-	socklen_t len = sizeof(addr);
-	int fd;
-
-	fd = accept(bfd->fd, (struct sockaddr *) &addr, &len);
-	if (fd < 0) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to accept. errno: %d/%s\n",
-		     errno, strerror(errno));
-		return -1;
-	}
-
-	conn = talloc_zero(rf, struct osmo_bsc_rf_conn);
-	if (!conn) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to allocate mem.\n");
-		close(fd);
-		return -1;
-	}
-
-	osmo_wqueue_init(&conn->queue, 10);
-	conn->queue.bfd.data = conn;
-	conn->queue.bfd.fd = fd;
-	conn->queue.bfd.when = BSC_FD_READ | BSC_FD_WRITE;
-	conn->queue.read_cb = rf_read_cmd;
-	conn->queue.write_cb = rf_write_cmd;
-	conn->rf = rf;
-
-	if (osmo_fd_register(&conn->queue.bfd) != 0) {
-		close(fd);
-		talloc_free(conn);
-		return -1;
-	}
-
-	return 0;
-}
-
-struct osmo_bsc_rf *osmo_bsc_rf_create(const char *path, struct gsm_network *net)
-{
-	unsigned int namelen;
-	struct sockaddr_un local;
-	struct osmo_fd *bfd;
-	struct osmo_bsc_rf *rf;
-	int rc;
-
-	rf = talloc_zero(NULL, struct osmo_bsc_rf);
-	if (!rf) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to create osmo_bsc_rf.\n");
-		return NULL;
-	}
-
-	bfd = &rf->listen;
-	bfd->fd = socket(AF_UNIX, SOCK_STREAM, 0);
-	if (bfd->fd < 0) {
-		LOGP(DLINP, LOGL_ERROR, "Can not create socket. %d/%s\n",
-		     errno, strerror(errno));
-		return NULL;
-	}
-
-	local.sun_family = AF_UNIX;
-	strncpy(local.sun_path, path, sizeof(local.sun_path));
-	local.sun_path[sizeof(local.sun_path) - 1] = '\0';
-	unlink(local.sun_path);
-
-	/* we use the same magic that X11 uses in Xtranssock.c for
-	 * calculating the proper length of the sockaddr */
-#if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
-	local.sun_len = strlen(local.sun_path);
-#endif
-#if defined(BSD44SOCKETS) || defined(SUN_LEN)
-	namelen = SUN_LEN(&local);
-#else
-	namelen = strlen(local.sun_path) +
-		  offsetof(struct sockaddr_un, sun_path);
-#endif
-
-	rc = bind(bfd->fd, (struct sockaddr *) &local, namelen);
-	if (rc != 0) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to bind '%s' errno: %d/%s\n",
-		     local.sun_path, errno, strerror(errno));
-		close(bfd->fd);
-		talloc_free(rf);
-		return NULL;
-	}
-
-	if (listen(bfd->fd, 0) != 0) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to listen: %d/%s\n", errno, strerror(errno));
-		close(bfd->fd);
-		talloc_free(rf);
-		return NULL;
-	}
-
-	bfd->when = BSC_FD_READ;
-	bfd->cb = rf_ctrl_accept;
-	bfd->data = rf;
-
-	if (osmo_fd_register(bfd) != 0) {
-		LOGP(DLINP, LOGL_ERROR, "Failed to register bfd.\n");
-		close(bfd->fd);
-		talloc_free(rf);
-		return NULL;
-	}
-
-	rf->gsm_network = net;
-	rf->policy = S_RF_ON;
-	rf->last_state_command = "";
-
-	/* check the rf state */
-	rf->rf_check.data = rf;
-	rf->rf_check.cb = rf_check_cb;
-
-	/* delay cmd handling */
-	rf->delay_cmd.data = rf;
-	rf->delay_cmd.cb = rf_delay_cmd_cb;
-
-	return rf;
-}
-