move openbsc/* to repos root

This is the first step in creating this repository from the legacy openbsc.git.

Like all other Osmocom repositories, keep the autoconf and automake files in
the repository root. openbsc.git has been the sole exception, which ends now.

Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7

1 files changed, 111 insertions, 0 deletions

diff --git a/src/libcommon/socket.c b/src/libcommon/socket.c
new file mode 100644
index 000000000..2a64767f8
--- /dev/null
+++ b/src/libcommon/socket.c
@@ -0,0 +1,111 @@
+/* OpenBSC sokcet code, taken from Abis input driver for ip.access */
+
+/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2010 by Holger Hans Peter Freyther
+ * (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 <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+#include <sys/fcntl.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+
+#include <osmocom/core/select.h>
+#include <osmocom/gsm/tlv.h>
+#include <osmocom/core/msgb.h>
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <osmocom/core/talloc.h>
+
+int make_sock(struct osmo_fd *bfd, int proto,
+	      uint32_t ip, uint16_t port, int priv_nr,
+	      int (*cb)(struct osmo_fd *fd, unsigned int what), void *data)
+{
+	struct sockaddr_in addr;
+	int ret, on = 1;
+	int type = SOCK_STREAM;
+
+	switch (proto) {
+	case IPPROTO_TCP:
+		type = SOCK_STREAM;
+		break;
+	case IPPROTO_UDP:
+		type = SOCK_DGRAM;
+		break;
+#ifdef IPPROTO_GRE
+	case IPPROTO_GRE:
+		type = SOCK_RAW;
+		break;
+#endif
+	default:
+		return -EINVAL;
+	}
+
+	bfd->fd = socket(AF_INET, type, proto);
+	bfd->cb = cb;
+	bfd->when = BSC_FD_READ;
+	bfd->data = data;
+	bfd->priv_nr = priv_nr;
+
+	if (bfd->fd < 0) {
+		LOGP(DLINP, LOGL_ERROR, "could not create socket.\n");
+		return -EIO;
+	}
+
+	memset(&addr, 0, sizeof(addr));
+	addr.sin_family = AF_INET;
+	addr.sin_port = htons(port);
+	if (ip != INADDR_ANY)
+		addr.sin_addr.s_addr = htonl(ip);
+	else
+		addr.sin_addr.s_addr = INADDR_ANY;
+
+	setsockopt(bfd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+
+	ret = bind(bfd->fd, (struct sockaddr *) &addr, sizeof(addr));
+	if (ret < 0) {
+		LOGP(DLINP, LOGL_ERROR, "could not bind socket %s\n",
+			strerror(errno));
+		close(bfd->fd);
+		return -EIO;
+	}
+
+	if (proto == IPPROTO_TCP) {
+		ret = listen(bfd->fd, 1);
+		if (ret < 0) {
+			perror("listen");
+			close(bfd->fd);
+			return ret;
+		}
+	}
+
+	ret = osmo_fd_register(bfd);
+	if (ret < 0) {
+		perror("register_listen_fd");
+		close(bfd->fd);
+		return ret;
+	}
+	return 0;
+}