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/*
* dvbnet.c
*
* Copyright (C) 2003 TV Files S.p.A
* L.Y.Mesentsev <lymes@tiscalinet.it>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
*
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
*/
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <linux/dvb/net.h>
#include <version.h>
#ifndef VERSION_INFO
#define VERSION_INFO "1.1.0"
#endif
#define OK 0
#define FAIL -1
#define DVB_NET_DEVICE "/dev/dvb/adapter%d/net%d"
#define DVB_NET_DEVICES_MAX 10
#define IFNAME_DVB "dvb"
enum Mode {
UNKNOWN,
LST_INTERFACE,
ADD_INTERFACE,
DEL_INTERFACE
} op_mode;
static int adapter = 0;
static int netdev = 0;
static struct dvb_net_if net_data;
static void hello(void);
static void usage(char *);
static void parse_args(int, char **);
static int queryInterface(int, int);
static char dvb_net_device[40];
int main(int argc, char **argv)
{
int fd_net;
hello();
parse_args(argc, argv);
sprintf(dvb_net_device, DVB_NET_DEVICE, adapter, netdev);
printf("Device: %s\n", dvb_net_device);
if ((fd_net = open(dvb_net_device, O_RDWR | O_NONBLOCK)) < 0) {
fprintf(stderr, "Error: couldn't open device %s: %d %m\n",
dvb_net_device, errno);
return FAIL;
}
switch (op_mode) {
case DEL_INTERFACE:
if (ioctl(fd_net, NET_REMOVE_IF, net_data.if_num))
fprintf(stderr,
"Error: couldn't remove interface %d: %d %m.\n",
net_data.if_num, errno);
else
printf("Status: device %d removed successfully.\n",
net_data.if_num);
break;
case ADD_INTERFACE:
if (ioctl(fd_net, NET_ADD_IF, &net_data))
fprintf(stderr,
"Error: couldn't add interface for pid %d: %d %m.\n",
net_data.pid, errno);
else
printf
("Status: device dvb%d_%d for pid %d created successfully.\n",
adapter, net_data.if_num, net_data.pid);
break;
case LST_INTERFACE:
queryInterface(fd_net, 0);
break;
default:
usage(argv[0]);
return FAIL;
}
close(fd_net);
return OK;
}
int queryInterface(int fd_net, int dev)
{
struct dvb_net_if data;
int IF, nIFaces = 0, ret = FAIL;
printf("Query DVB network interfaces:\n");
printf("-----------------------------\n");
for (IF = 0; IF < DVB_NET_DEVICES_MAX; IF++) {
data.if_num = IF;
if (ioctl(fd_net, NET_GET_IF, &data))
continue;
if (dev == data.if_num)
ret = OK;
printf("Found device %d: interface dvb%d_%d, "
"listening on PID %d\n",
IF, adapter, data.if_num, data.pid);
nIFaces++;
}
printf("-----------------------------\n");
printf("Found %d interface(s).\n\n", nIFaces);
return ret;
}
void parse_args(int argc, char **argv)
{
char c, *s;
op_mode = UNKNOWN;
while ((c = getopt(argc, argv, "a:n:p:d:lvh")) != EOF) {
switch (c) {
case 'a':
adapter = strtol(optarg, NULL, 0);
break;
case 'n':
netdev = strtol(optarg, NULL, 0);
break;
case 'p':
net_data.pid = strtol(optarg, NULL, 0);
op_mode = ADD_INTERFACE;
break;
case 'd':
net_data.if_num = strtol(optarg, NULL, 0);
op_mode = DEL_INTERFACE;
break;
case 'l':
op_mode = LST_INTERFACE;
break;
case 'v':
exit(OK);
case 'h':
default:
s = strrchr(argv[0], '/') + 1;
usage((s) ? s : argv[0]);
exit(FAIL);
}
}
}
void usage(char *prog_name)
{
fprintf(stderr, "Usage: %s [options]\n", prog_name);
fprintf(stderr, "Where options are:\n");
fprintf(stderr, "\t-a AD : Adapter card AD (default 0)\n");
fprintf(stderr, "\t-n NET : Net demux NET (default 0)\n");
fprintf(stderr, "\t-p PID : Add interface listening on PID\n");
fprintf(stderr, "\t-d NUM : Remove interface dvbAD_NUM\n");
fprintf(stderr,
"\t-l : List currently available interfaces\n");
fprintf(stderr, "\t-v : Print current version\n\n");
}
void hello(void)
{
printf("\nDVB Network Interface Manager\n");
printf("Version %s\n", VERSION_INFO);
printf("Copyright (C) 2003, TV Files S.p.A\n\n");
}
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