1 files changed, 0 insertions, 320 deletions
diff --git a/src/libbsc/bsc_msc.c b/src/libbsc/bsc_msc.c
deleted file mode 100644
index 82a572dbe..000000000
--- a/src/libbsc/bsc_msc.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/* Routines to talk to the MSC using the IPA Protocol */
-/*
- * (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/bsc_msc.h>
-#include <openbsc/debug.h>
-#include <osmocom/abis/ipaccess.h>
-
-#include <osmocom/core/write_queue.h>
-#include <osmocom/core/talloc.h>
-
-#include <osmocom/gsm/tlv.h>
-
-#include <arpa/inet.h>
-#include <sys/socket.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-static void connection_loss(struct bsc_msc_connection *con)
-{
-	struct osmo_fd *fd;
-
-	fd = &con->write_queue.bfd;
-
-	if (con->pending_msg) {
-		LOGP(DMSC, LOGL_ERROR,
-		     "MSC(%s) dropping incomplete message.\n", con->name);
-		msgb_free(con->pending_msg);
-		con->pending_msg = NULL;
-	}
-
-	close(fd->fd);
-	fd->fd = -1;
-	fd->cb = osmo_wqueue_bfd_cb;
-	fd->when = 0;
-
-	con->is_connected = 0;
-	con->first_contact = 0;
-	con->connection_loss(con);
-}
-
-static void msc_con_timeout(void *_con)
-{
-	struct bsc_msc_connection *con = _con;
-
-	LOGP(DMSC, LOGL_ERROR,
-		"MSC(%s) Connection timeout.\n", con->name);
-	bsc_msc_lost(con);
-}
-
-/* called in the case of a non blocking connect */
-static int msc_connection_connect(struct osmo_fd *fd, unsigned int what)
-{
-	int rc;
-	int val;
-	struct bsc_msc_connection *con;
-	struct osmo_wqueue *queue;
-
-	socklen_t len = sizeof(val);
-
-	queue = container_of(fd, struct osmo_wqueue, bfd);
-	con = container_of(queue, struct bsc_msc_connection, write_queue);
-
-	if ((what & BSC_FD_WRITE) == 0) {
-		LOGP(DMSC, LOGL_ERROR,
-			"MSC(%s) Callback but not writable.\n", con->name);
-		return -1;
-	}
-
-	/* From here on we will either be connected or reconnect */
-	osmo_timer_del(&con->timeout_timer);
-
-	/* check the socket state */
-	rc = getsockopt(fd->fd, SOL_SOCKET, SO_ERROR, &val, &len);
-	if (rc != 0) {
-		LOGP(DMSC, LOGL_ERROR,
-			"getsockopt for the MSC(%s) socket failed.\n", con->name);
-		goto error;
-	}
-	if (val != 0) {
-		LOGP(DMSC, LOGL_ERROR,
-			"Not connected to the MSC(%s): %d\n",
-			con->name, val);
-		goto error;
-	}
-
-
-	/* go to full operation */
-	fd->cb = osmo_wqueue_bfd_cb;
-	fd->when = BSC_FD_READ | BSC_FD_EXCEPT;
-
-	con->is_connected = 1;
-	LOGP(DMSC, LOGL_NOTICE,
-		"(Re)Connected to the MSC(%s).\n", con->name);
-	if (con->connected)
-		con->connected(con);
-	return 0;
-
-error:
-	osmo_fd_unregister(fd);
-	connection_loss(con);
-	return -1;
-}
-static void setnonblocking(struct osmo_fd *fd)
-{
-	int flags;
-
-	flags = fcntl(fd->fd, F_GETFL);
-	if (flags < 0) {
-		perror("fcntl get failed");
-		close(fd->fd);
-		fd->fd = -1;
-		return;
-	}
-
-	flags |= O_NONBLOCK;
-	flags = fcntl(fd->fd, F_SETFL, flags);
-	if (flags < 0) {
-		perror("fcntl get failed");
-		close(fd->fd);
-		fd->fd = -1;
-		return;
-	}
-}
-
-int bsc_msc_connect(struct bsc_msc_connection *con)
-{
-	struct bsc_msc_dest *dest;
-	struct osmo_fd *fd;
-	struct sockaddr_in sin;
-	int on = 1, ret;
-
-	if (llist_empty(con->dests)) {
-		LOGP(DMSC, LOGL_ERROR,
-			"No MSC(%s) connections configured.\n",
-			con->name);
-		connection_loss(con);
-		return -1;
-	}
-
-	/* TODO: Why are we not using the libosmocore soecket
-	 * abstraction, or libosmo-netif? */
-
-	/* move to the next connection */
-	dest = (struct bsc_msc_dest *) con->dests->next;
-	llist_del(&dest->list);
-	llist_add_tail(&dest->list, con->dests);
-
-	LOGP(DMSC, LOGL_NOTICE,
-		"Attempting to connect MSC(%s) at %s:%d\n",
-		con->name, dest->ip, dest->port);
-
-	con->is_connected = 0;
-
-	msgb_free(con->pending_msg);
-	con->pending_msg = NULL;
-
-	fd = &con->write_queue.bfd;
-	fd->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
-	fd->priv_nr = 1;
-
-	if (fd->fd < 0) {
-		perror("Creating TCP socket failed");
-		return fd->fd;
-	}
-
-	/* make it non blocking */
-	setnonblocking(fd);
-
-	/* set the socket priority */
-	ret = setsockopt(fd->fd, IPPROTO_IP, IP_TOS,
-			 &dest->dscp, sizeof(dest->dscp));
-	if (ret != 0)
-		LOGP(DMSC, LOGL_ERROR,
-			"Failed to set DSCP to %d on MSC(%s). %s\n",
-			dest->dscp, con->name, strerror(errno));
-
-	memset(&sin, 0, sizeof(sin));
-	sin.sin_family = AF_INET;
-	sin.sin_port = htons(dest->port);
-	inet_aton(dest->ip, &sin.sin_addr);
-
-	ret = setsockopt(fd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-	if (ret != 0)
-		LOGP(DMSC, LOGL_ERROR,
-		     "Failed to set SO_REUSEADDR socket option\n");
-	ret = connect(fd->fd, (struct sockaddr *) &sin, sizeof(sin));
-
-	if (ret == -1 && errno == EINPROGRESS) {
-		LOGP(DMSC, LOGL_ERROR,
-			"MSC(%s) Connection in progress\n", con->name);
-		fd->when = BSC_FD_WRITE;
-		fd->cb = msc_connection_connect;
-		osmo_timer_setup(&con->timeout_timer, msc_con_timeout, con);
-		osmo_timer_schedule(&con->timeout_timer, 20, 0);
-	} else if (ret < 0) {
-		perror("Connection failed");
-		connection_loss(con);
-		return ret;
-	} else {
-		fd->when = BSC_FD_READ | BSC_FD_EXCEPT;
-		fd->cb = osmo_wqueue_bfd_cb;
-		con->is_connected = 1;
-		if (con->connected)
-			con->connected(con);
-	}
-
-	ret = osmo_fd_register(fd);
-	if (ret < 0) {
-		perror("Registering the fd failed");
-		close(fd->fd);
-		return ret;
-	}
-
-	return ret;
-}
-
-struct bsc_msc_connection *bsc_msc_create(void *ctx, struct llist_head *dests)
-{
-	struct bsc_msc_connection *con;
-
-	con = talloc_zero(NULL, struct bsc_msc_connection);
-	if (!con) {
-		LOGP(DMSC, LOGL_FATAL, "Failed to create the MSC connection.\n");
-		return NULL;
-	}
-
-	con->dests = dests;
-	con->write_queue.bfd.fd = -1;
-	con->name = "";
-	osmo_wqueue_init(&con->write_queue, 100);
-	return con;
-}
-
-void bsc_msc_lost(struct bsc_msc_connection *con)
-{
-	osmo_wqueue_clear(&con->write_queue);
-	osmo_timer_del(&con->timeout_timer);
-	osmo_timer_del(&con->reconnect_timer);
-
-	if (con->write_queue.bfd.fd >= 0)
-		osmo_fd_unregister(&con->write_queue.bfd);
-	connection_loss(con);
-}
-
-static void reconnect_msc(void *_msc)
-{
-	struct bsc_msc_connection *con = _msc;
-
-	LOGP(DMSC, LOGL_NOTICE,
-		"Attempting to reconnect to the MSC(%s).\n", con->name);
-	bsc_msc_connect(con);
-}
-
-void bsc_msc_schedule_connect(struct bsc_msc_connection *con)
-{
-	LOGP(DMSC, LOGL_NOTICE,
-		"Attempting to reconnect to the MSC(%s)\n", con->name);
-	osmo_timer_setup(&con->reconnect_timer, reconnect_msc, con);
-	osmo_timer_schedule(&con->reconnect_timer, 5, 0);
-}
-
-struct msgb *bsc_msc_id_get_resp(int fixed, const char *token, const uint8_t *res, int len)
-{
-	struct msgb *msg;
-
-	if (!token) {
-		LOGP(DMSC, LOGL_ERROR, "No token specified.\n");
-		return NULL;
-	}
-
-	msg = msgb_alloc_headroom(4096, 128, "id resp");
-	if (!msg) {
-		LOGP(DMSC, LOGL_ERROR, "Failed to create the message.\n");
-		return NULL;
-	}
-
-	/*
-	 * The situation is bizarre. The encoding doesn't follow the
-	 * TLV structure. It is more like a LV and old versions had
-	 * it wrong but we want new versions to old servers so we
-	 * introduce the quirk here.
-	 */
-	msg->l2h = msgb_v_put(msg, IPAC_MSGT_ID_RESP);
-	if (fixed) {
-		msgb_put_u8(msg, 0);
-		msgb_put_u8(msg, strlen(token) + 2);
-		msgb_tv_fixed_put(msg, IPAC_IDTAG_UNITNAME, strlen(token) + 1, (uint8_t *) token);
-		if (len > 0) {
-			msgb_put_u8(msg, 0);
-			msgb_put_u8(msg, len + 1);
-			msgb_tv_fixed_put(msg, 0x24, len, res);
-		}
-	} else {
-		msgb_l16tv_put(msg, strlen(token) + 1,
-			IPAC_IDTAG_UNITNAME, (uint8_t *) token);
-	}
-
-	return msg;
-}