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;
+}