1 files changed, 104 insertions, 0 deletions
diff --git a/lib/libdvbapi/dvbnet.c b/lib/libdvbapi/dvbnet.c
new file mode 100644
index 0000000..f0f08f9
--- /dev/null
+++ b/lib/libdvbapi/dvbnet.c
@@ -0,0 +1,104 @@
+/*
+ * libdvbnet - a DVB network support library
+ *
+ * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/param.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <linux/dvb/net.h>
+#include <errno.h>
+#include "dvbnet.h"
+
+int dvbnet_open(int adapter, int netdeviceid)
+{
+	char filename[PATH_MAX+1];
+	int fd;
+
+	sprintf(filename, "/dev/dvb/adapter%i/net%i", adapter, netdeviceid);
+	if ((fd = open(filename, O_RDWR)) < 0) {
+		// if that failed, try a flat /dev structure
+		sprintf(filename, "/dev/dvb%i.net%i", adapter, netdeviceid);
+		fd = open(filename, O_RDWR);
+	}
+
+	return fd;
+}
+
+int dvbnet_add_interface(int fd, uint16_t pid, enum dvbnet_encap encapsulation)
+{
+	struct dvb_net_if params;
+	int status;
+
+	memset(&params, 0, sizeof(params));
+	params.pid = pid;
+
+	switch(encapsulation) {
+	case DVBNET_ENCAP_MPE:
+		params.feedtype = DVB_NET_FEEDTYPE_MPE;
+		break;
+
+	case DVBNET_ENCAP_ULE:
+		params.feedtype = DVB_NET_FEEDTYPE_ULE;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	status = ioctl(fd, NET_ADD_IF, &params);
+	if (status < 0)
+		return status;
+	return params.if_num;
+}
+
+int dvbnet_get_interface(int fd, int ifnum, uint16_t *pid, enum dvbnet_encap *encapsulation)
+{
+	struct dvb_net_if info;
+	int res;
+
+	memset(&info, 0, sizeof(struct dvb_net_if));
+	info.if_num = ifnum;
+
+	if ((res = ioctl(fd, NET_GET_IF, &info)) < 0)
+		return res;
+
+	*pid = info.pid;
+	switch(info.feedtype) {
+	case DVB_NET_FEEDTYPE_MPE:
+		*encapsulation = DVBNET_ENCAP_MPE;
+		break;
+
+	case DVB_NET_FEEDTYPE_ULE:
+		*encapsulation = DVBNET_ENCAP_ULE;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int dvbnet_remove_interface(int fd, int ifnum)
+{
+	return ioctl(fd, NET_REMOVE_IF, ifnum);
+}