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authoretobi <git@e-tobi.net>2013-09-03 09:48:41 +0200
committeretobi <git@e-tobi.net>2013-09-03 09:48:41 +0200
commitab959d7b4194715870128e616b8e29d4a101e488 (patch)
tree61a746231d30817be73416a7d67763fd677a1042 /lib/libdvbapi/dvbnet.c
parent6b350466c4902c5b137e0efaf1d189128a7f18f5 (diff)
downloadlinux-dvb-apps-ab959d7b4194715870128e616b8e29d4a101e488.tar.gz
Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207
Diffstat (limited to 'lib/libdvbapi/dvbnet.c')
-rw-r--r--lib/libdvbapi/dvbnet.c104
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);
+}