/*****************************************************************************
* netutils.c: various network functions
*****************************************************************************
- * Copyright (C) 1999, 2000, 2001 VideoLAN
+ * Copyright (C) 1999-2001 VideoLAN
+ * $Id: netutils.c,v 1.73 2002/07/31 20:56:53 sam Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Benoit Steiner <benny@via.ecp.fr>
* Henri Fallon <henri@videolan.org>
+ * Xavier Marchesini <xav@alarue.net>
+ * Christophe Massiot <massiot@via.ecp.fr>
+ * Samuel Hocevar <sam@via.ecp.fr>
*
* 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
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include "defs.h"
-
-#include <netdb.h> /* gethostbyname() */
#include <stdlib.h> /* free(), realloc(), atoi() */
#include <errno.h> /* errno() */
-#include <string.h> /* bzero(), bcopy() */
-#include <unistd.h> /* gethostname() */
+#include <string.h> /* memset() */
+
+#include <vlc/vlc.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h> /* gethostname() */
+#elif defined( _MSC_VER ) && defined( _WIN32 )
+# include <io.h>
+#endif
+
+#if !defined( _MSC_VER )
+#include <sys/time.h> /* gettimeofday */
+#endif
+
+#ifdef WIN32
+# include <winsock2.h>
+#else
+# include <netdb.h> /* hostent ... */
+# include <sys/socket.h> /* BSD: struct sockaddr */
+# include <netinet/in.h> /* BSD: struct in_addr */
+# ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h> /* inet_ntoa(), inet_aton() */
+# endif
+#endif
+
+#ifdef SYS_LINUX
+#include <sys/ioctl.h> /* ioctl() */
+#endif
-#include <netinet/in.h> /* BSD: struct in_addr */
-#include <sys/socket.h> /* BSD: struct sockaddr */
-#ifdef HAVE_ARPA_INET_H
-#include <arpa/inet.h> /* inet_ntoa(), inet_aton() */
+#if defined( WIN32 ) /* tools to get the MAC adress from */
+#include <windows.h> /* the interface under Windows */
+#include <stdio.h>
+#include <nb30.h>
#endif
-#if defined (HAVE_NET_IF_H)
+#ifdef HAVE_NET_IF_H
#include <net/if.h> /* interface (arch-dependent) */
#endif
#include <sys/sockio.h>
#endif
-#include "config.h"
-#include "common.h"
-#include "mtime.h"
-#include "threads.h"
+#include "netutils.h"
+#include "vlc_playlist.h"
-#include "intf_msg.h"
+#include "network.h"
-#if !defined( SYS_BEOS ) && !defined( SYS_NTO )
+/*****************************************************************************
+ * input_channel_t: channel library data
+ *****************************************************************************
+ * Store global channel library data.
+ * The part of the code concerning the channel changing process is unstable
+ * as it depends on the VideoLAN channel server, which isn't frozen for
+ * the time being.
+ *****************************************************************************/
+struct input_channel_t
+{
+ int i_channel; /* current channel number */
+ mtime_t last_change; /* last change date */
+};
-#include "netutils.h"
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int GetMacAddress ( vlc_object_t *, int i_fd, char *psz_mac );
+#ifdef WIN32
+static int GetAdapterInfo ( int i_adapter, char *psz_string );
+#endif
/*****************************************************************************
- * input_BuildLocalAddr : fill a sockaddr_in structure for local binding
+ * network_ChannelCreate: initialize global channel method data
+ *****************************************************************************
+ * Initialize channel input method global data. This function should be called
+ * once before any input thread is created or any call to other
+ * input_Channel*() function is attempted.
*****************************************************************************/
-int network_BuildLocalAddr( struct sockaddr_in * p_socket, int i_port,
- boolean_t b_broadcast )
+int __network_ChannelCreate( vlc_object_t *p_this )
{
- char psz_hostname[INPUT_MAX_SOURCE_LENGTH];
- struct hostent * p_hostent;
-
- /* Reset struct */
- memset( p_socket, 0, sizeof( struct sockaddr_in ) );
- p_socket->sin_family = AF_INET; /* family */
- p_socket->sin_port = htons( i_port );
- if( !b_broadcast )
- {
- /* Try to get our own IP */
- if( gethostname( psz_hostname, sizeof(psz_hostname) ) )
- {
- intf_ErrMsg( "BuildLocalAddr : unable to resolve local name : %s",
- strerror( errno ) );
- return( -1 );
- }
+#if !defined( SYS_LINUX ) && !defined( WIN32 )
+ msg_Err( p_this, "VLAN-based channels are not supported "
+ "on this architecture" );
+#endif
+ /* Allocate structure */
+ p_this->p_vlc->p_channel = malloc( sizeof( input_channel_t ) );
+ if( p_this->p_vlc->p_channel == NULL )
+ {
+ msg_Err( p_this, "out of memory" );
+ return( -1 );
+ }
+
+ /* Initialize structure */
+ p_this->p_vlc->p_channel->i_channel = 0;
+ p_this->p_vlc->p_channel->last_change = 0;
+
+ msg_Dbg( p_this, "channels initialized" );
+ return( 0 );
+}
+
+/*****************************************************************************
+ * network_ChannelJoin: join a channel
+ *****************************************************************************
+ * This function will try to join a channel. If the relevant interface is
+ * already on the good channel, nothing will be done. Else, and if possible
+ * (if the interface is not locked), the channel server will be contacted
+ * and a change will be requested. The function will block until the change
+ * is effective. Note that once a channel is no more used, its interface
+ * should be unlocked using input_ChannelLeave().
+ * Non 0 will be returned in case of error.
+ *****************************************************************************/
+int __network_ChannelJoin( vlc_object_t *p_this, int i_channel )
+{
+#define VLCS_VERSION 13
+#define MESSAGE_LENGTH 256
+
+ module_t * p_network;
+ char * psz_network = NULL;
+ network_socket_t socket_desc;
+ char psz_mess[ MESSAGE_LENGTH ];
+ char psz_mac[ 40 ];
+ int i_fd, i_port;
+ char *psz_vlcs;
+ struct timeval delay;
+ fd_set fds;
+
+ if( p_this->p_vlc->p_channel->i_channel == i_channel )
+ {
+ return 0;
+ }
+
+ if( !config_GetInt( p_this, "network-channel" ) )
+ {
+ msg_Err( p_this, "channels disabled, to enable them, use the"
+ " --channels option" );
+ return -1;
+ }
+
+ if( config_GetInt( p_this, "ipv4" ) )
+ {
+ psz_network = "ipv4";
+ }
+ if( config_GetInt( p_this, "ipv6" ) )
+ {
+ psz_network = "ipv6";
+ }
+
+ /* Getting information about the channel server */
+ if( !(psz_vlcs = config_GetPsz( p_this, "channel-server" )) )
+ {
+ msg_Err( p_this, "configuration variable channel-server empty" );
+ return -1;
+ }
+
+ i_port = config_GetInt( p_this, "channel-port" );
+
+ msg_Dbg( p_this, "connecting to %s:%d", psz_vlcs, i_port );
+
+ /* Prepare the network_socket_t structure */
+ socket_desc.i_type = NETWORK_UDP;
+ socket_desc.psz_bind_addr = "";
+ socket_desc.i_bind_port = 4321;
+ socket_desc.psz_server_addr = psz_vlcs;
+ socket_desc.i_server_port = i_port;
+
+ /* Find an appropriate network module */
+ p_network = module_Need( p_this, "network", psz_network/*, &socket_desc*/ );
+ if( p_network == NULL )
+ {
+ return( -1 );
+ }
+ module_Unneed( p_this, p_network );
+
+ free( psz_vlcs ); /* Do we really need this ? -- Meuuh */
+ i_fd = socket_desc.i_handle;
+
+ /* Look for the interface MAC address */
+ if( GetMacAddress( p_this, i_fd, psz_mac ) )
+ {
+ msg_Err( p_this, "failed getting MAC address" );
+ close( i_fd );
+ return -1;
+ }
+
+ msg_Dbg( p_this, "MAC address is %s", psz_mac );
+
+ /* Build the message */
+ sprintf( psz_mess, "%d %u %lu %s \n", i_channel, VLCS_VERSION,
+ (unsigned long)(mdate() / (u64)1000000),
+ psz_mac );
+
+ /* Send the message */
+ send( i_fd, psz_mess, MESSAGE_LENGTH, 0 );
+
+ msg_Dbg( p_this, "attempting to join channel %d", i_channel );
+
+ /* We have changed channels ! (or at least, we tried) */
+ p_this->p_vlc->p_channel->last_change = mdate();
+ p_this->p_vlc->p_channel->i_channel = i_channel;
+
+ /* Wait 5 sec for an answer from the server */
+ delay.tv_sec = 5;
+ delay.tv_usec = 0;
+ FD_ZERO( &fds );
+ FD_SET( i_fd, &fds );
+
+ switch( select( i_fd + 1, &fds, NULL, NULL, &delay ) )
+ {
+ case 0:
+ msg_Err( p_this, "no answer from vlcs" );
+ close( i_fd );
+ return -1;
+
+ case -1:
+ msg_Err( p_this, "error while listening to vlcs" );
+ close( i_fd );
+ return -1;
+ }
+
+ recv( i_fd, psz_mess, MESSAGE_LENGTH, 0 );
+ psz_mess[ MESSAGE_LENGTH - 1 ] = '\0';
+
+ if( !strncasecmp( psz_mess, "E:", 2 ) )
+ {
+ msg_Err( p_this, "vlcs said '%s'", psz_mess + 2 );
+ close( i_fd );
+ return -1;
+ }
+ else if( !strncasecmp( psz_mess, "I:", 2 ) )
+ {
+ msg_Dbg( p_this, "vlcs said '%s'", psz_mess + 2 );
}
else
{
- /* Instead of trying to find the broadcast address using non-portable
- * ioctl, let's bind INADDR_ANY */
- strncpy(psz_hostname,"0.0.0.0",sizeof(psz_hostname));
+ /* We got something to play ! */
+ playlist_t *p_playlist;
+ p_playlist = vlc_object_find( p_this, VLC_OBJECT_PLAYLIST,
+ FIND_ANYWHERE );
+ if( p_playlist != NULL )
+ {
+ playlist_Add( p_playlist, psz_mess,
+ PLAYLIST_APPEND | PLAYLIST_GO, PLAYLIST_END );
+ vlc_object_release( p_playlist );
+ }
}
- /* Try to convert address directly from in_addr - this will work if
- * psz_in_addr is dotted decimal. */
-#ifdef HAVE_ARPA_INET_H
- if( !inet_aton( psz_hostname, &p_socket->sin_addr) )
+ /* Close the socket and return nicely */
+#ifndef WIN32
+ close( i_fd );
#else
- if( (p_socket->sin_addr.s_addr = inet_addr( psz_hostname )) == -1 )
+ closesocket( i_fd );
#endif
+
+ return 0;
+}
+
+/* Following functions are local */
+
+/*****************************************************************************
+ * GetMacAddress: extract the MAC Address
+ *****************************************************************************/
+static int GetMacAddress( vlc_object_t *p_this, int i_fd, char *psz_mac )
+{
+#if defined( SYS_LINUX )
+ struct ifreq interface;
+ int i_ret;
+ char *psz_interface;
+
+ /*
+ * Looking for information about the eth0 interface
+ */
+ interface.ifr_addr.sa_family = AF_INET;
+ if( !(psz_interface = config_GetPsz( p_this, "iface" )) )
+ {
+ msg_Err( p_this, "configuration variable iface empty" );
+ return -1;
+ }
+ strcpy( interface.ifr_name, psz_interface );
+ free( psz_interface );
+
+ i_ret = ioctl( i_fd, SIOCGIFHWADDR, &interface );
+
+ if( i_ret )
+ {
+ msg_Err( p_this, "ioctl SIOCGIFHWADDR failed" );
+ return( i_ret );
+ }
+
+ sprintf( psz_mac, "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
+ interface.ifr_hwaddr.sa_data[0] & 0xff,
+ interface.ifr_hwaddr.sa_data[1] & 0xff,
+ interface.ifr_hwaddr.sa_data[2] & 0xff,
+ interface.ifr_hwaddr.sa_data[3] & 0xff,
+ interface.ifr_hwaddr.sa_data[4] & 0xff,
+ interface.ifr_hwaddr.sa_data[5] & 0xff );
+
+ return( 0 );
+
+#elif defined( WIN32 )
+ int i, i_ret = -1;
+
+ /* Get adapter list - support for more than one adapter */
+ LANA_ENUM AdapterList;
+ NCB Ncb;
+
+ msg_Dbg( p_this, "looking for MAC address" );
+
+ memset( &Ncb, 0, sizeof( NCB ) );
+ Ncb.ncb_command = NCBENUM;
+ Ncb.ncb_buffer = (unsigned char *)&AdapterList;
+ Ncb.ncb_length = sizeof( AdapterList );
+ Netbios( &Ncb );
+
+ /* Get all of the local ethernet addresses */
+ for ( i = 0; i < AdapterList.length ; ++i )
{
- /* We have a fqdn, try to find its address */
- if ( (p_hostent = gethostbyname( psz_hostname )) == NULL )
+ if ( GetAdapterInfo ( AdapterList.lana[ i ], psz_mac ) == 0 )
{
- intf_ErrMsg( "BuildLocalAddr: unknown host %s", psz_hostname );
- return( -1 );
+ i_ret = 0;
}
-
- /* Copy the first address of the host in the socket address */
- memcpy( &p_socket->sin_addr, p_hostent->h_addr_list[0],
- p_hostent->h_length );
}
+
+ return( i_ret );
+
+#else
+ strcpy( psz_mac, "00:00:00:00:00:00" );
return( 0 );
+
+#endif
}
+#ifdef WIN32
/*****************************************************************************
- * input_BuildRemoteAddr : fill a sockaddr_in structure for remote host
+ * GetAdapterInfo : gets some informations about the interface using NETBIOS
*****************************************************************************/
-int network_BuildRemoteAddr( struct sockaddr_in * p_socket, char * psz_server )
+static int GetAdapterInfo( int i_adapter, char *psz_string )
{
- struct hostent * p_hostent;
-
- /* Reset structure */
- memset( p_socket, 0, sizeof( struct sockaddr_in ) );
- p_socket->sin_family = AF_INET; /* family */
- p_socket->sin_port = htons( 0 ); /* This is for remote end */
-
- /* Try to convert address directly from in_addr - this will work if
- * psz_in_addr is dotted decimal. */
-
-#ifdef HAVE_ARPA_INET_H
- if( !inet_aton( psz_server, &p_socket->sin_addr) )
-#else
- if( (p_socket->sin_addr.s_addr = inet_addr( psz_server )) == -1 )
-#endif
+ struct ASTAT
{
- /* We have a fqdn, try to find its address */
- if ( (p_hostent = gethostbyname(psz_server)) == NULL )
- {
- intf_ErrMsg( "BuildRemoteAddr: unknown host %s",
- psz_server );
- return( -1 );
- }
-
- /* Copy the first address of the host in the socket address */
- memcpy( &p_socket->sin_addr, p_hostent->h_addr_list[0],
- p_hostent->h_length );
+ ADAPTER_STATUS adapt;
+ NAME_BUFFER psz_name[30];
+ } Adapter;
+
+ /* Reset the LAN adapter so that we can begin querying it */
+ NCB Ncb;
+ memset( &Ncb, 0, sizeof ( Ncb ) );
+ Ncb.ncb_command = NCBRESET;
+ Ncb.ncb_lana_num = i_adapter;
+
+ if( Netbios( &Ncb ) != NRC_GOODRET )
+ {
+//X intf_ErrMsg( "network error: reset returned %i", Ncb.ncb_retcode );
+ return -1;
+ }
+
+ /* Prepare to get the adapter status block */
+ memset( &Ncb, 0, sizeof( Ncb ) ) ; /* Initialization */
+ Ncb.ncb_command = NCBASTAT;
+ Ncb.ncb_lana_num = i_adapter;
+
+ strcpy( (char *)Ncb.ncb_callname, "*" );
+
+ memset( &Adapter, 0, sizeof ( Adapter ) );
+ Ncb.ncb_buffer = ( unsigned char * ) &Adapter;
+ Ncb.ncb_length = sizeof ( Adapter );
+
+ /* Get the adapter's info and, if this works, return it in standard,
+ * colon-delimited form. */
+ if ( Netbios( &Ncb ) == 0 )
+ {
+ sprintf ( psz_string, "%02X:%02X:%02X:%02X:%02X:%02X",
+ (int) ( Adapter.adapt.adapter_address[0] ),
+ (int) ( Adapter.adapt.adapter_address[1] ),
+ (int) ( Adapter.adapt.adapter_address[2] ),
+ (int) ( Adapter.adapt.adapter_address[3] ),
+ (int) ( Adapter.adapt.adapter_address[4] ),
+ (int) ( Adapter.adapt.adapter_address[5] ) );
+
+//X intf_WarnMsg( 2, "network: found MAC address %s", psz_string );
+
+ return 0;
+ }
+ else
+ {
+//X intf_ErrMsg( "network error: ASTAT returned %i", Ncb.ncb_retcode );
+ return -1;
}
- return( 0 );
}
-#endif
+#endif /* WIN32 */
projects / vlc / blobdiff