1 /*****************************************************************************
2 * input_vlan.c: vlan management library
3 *****************************************************************************
4 * Copyright (C) 1999, 2000 VideoLAN
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public
19 * License along with this program; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <errno.h> /* ENOMEM */
28 #include <stdio.h> /* sprintf() */
29 #include <unistd.h> /* close() */
30 #include <string.h> /* strerror(), bzero() */
31 #include <stdlib.h> /* free() */
33 #if defined(SYS_BSD) || defined(SYS_BEOS)
34 #include <netinet/in.h> /* struct in_addr */
35 #include <sys/socket.h> /* struct sockaddr */
38 #if defined(SYS_LINUX) || defined(SYS_BSD) || defined(SYS_GNU)
39 #include <arpa/inet.h> /* inet_ntoa(), inet_aton() */
43 #include <sys/ioctl.h> /* ioctl() */
44 #include <net/if.h> /* interface (arch-dependent) */
52 #include "input_vlan.h"
56 /*****************************************************************************
57 * input_vlan_t: vlan library data
58 *****************************************************************************
59 * Store global vlan library data.
60 *****************************************************************************/
61 typedef struct input_vlan_s
63 int i_vlan_id; /* current vlan number */
64 mtime_t last_change; /* last change date */
67 /*****************************************************************************
69 *****************************************************************************/
70 static int ZeTrucMucheFunction( int Channel );
72 /*****************************************************************************
73 * input_VlanCreate: initialize global vlan method data
74 *****************************************************************************
75 * Initialize vlan input method global data. This function should be called
76 * once before any input thread is created or any call to other input_Vlan*()
77 * function is attempted.
78 *****************************************************************************/
79 int input_VlanCreate( void )
82 intf_ErrMsg( "error: vlans are not supported under beos\n" );
85 /* Allocate structure */
86 p_main->p_vlan = malloc( sizeof( input_vlan_t ) );
87 if( p_main->p_vlan == NULL )
89 intf_ErrMsg("error: %s\n", strerror(ENOMEM));
93 /* Initialize structure */
94 p_main->p_vlan->i_vlan_id = 0;
95 p_main->p_vlan->last_change = 0;
97 intf_Msg("VLANs initialized\n");
102 /*****************************************************************************
103 * input_VlanDestroy: free global vlan method data
104 *****************************************************************************
105 * Free resources allocated by input_VlanMethodInit. This function should be
106 * called at the end of the program.
107 *****************************************************************************/
108 void input_VlanDestroy( void )
110 /* Return to default vlan */
111 if( p_main->p_vlan->i_vlan_id != 0 )
117 free( p_main->p_vlan );
120 /*****************************************************************************
121 * input_VlanJoin: join a vlan
122 *****************************************************************************
123 * This function will try to join a vlan. If the relevant interface is already
124 * on the good vlan, nothing will be done. Else, and if possible (if the
125 * interface is not locked), the vlan server will be contacted and a change will
126 * be requested. The function will block until the change is effective. Note
127 * that once a vlan is no more used, it's interface should be unlocked using
129 * Non 0 will be returned in case of error.
130 *****************************************************************************/
131 int input_VlanJoin( int i_vlan_id )
136 /* If last change is too recent, wait a while */
137 if( mdate() - p_main->p_vlan->last_change < INPUT_VLAN_CHANGE_DELAY )
139 intf_Msg("Waiting before changing VLAN...\n");
140 mwait( p_main->p_vlan->last_change + INPUT_VLAN_CHANGE_DELAY );
142 p_main->p_vlan->last_change = mdate();
143 p_main->p_vlan->i_vlan_id = i_vlan_id;
145 intf_Msg("Joining VLAN %d (channel %d)\n", i_vlan_id + 2, i_vlan_id );
146 return( ZeTrucMucheFunction( i_vlan_id ) ); /* FIXME: join vlan ?? */
147 #endif /* SYS_BEOS */
150 /*****************************************************************************
151 * input_VlanLeave: leave a vlan
152 *****************************************************************************
153 * This function tells the vlan library that the designed interface is no more
154 * locked and than vlan changes can occur.
155 *****************************************************************************/
156 void input_VlanLeave( int i_vlan_id )
161 /* following functions are local */
163 static int ZeTrucMucheFunction( int Channel)
168 struct ifreq interface;
169 struct sockaddr_in sa_server;
170 struct sockaddr_in sa_client;
174 *Looking for informations about the eth0 interface
177 interface.ifr_addr.sa_family = AF_INET;
178 strcpy( interface.ifr_name, main_GetPszVariable( INPUT_IFACE_VAR, INPUT_IFACE_DEFAULT ) );
180 i_socket = socket( AF_INET, SOCK_DGRAM, 0 );
182 /* Looking for the interface IP address */
183 ioctl( i_socket, SIOCGIFDSTADDR, &interface );
184 ipaddr = inet_ntoa((*(struct sockaddr_in *)(&(interface.ifr_addr))).sin_addr );
186 /* Looking for the interface MAC address */
187 ioctl( i_socket, SIOCGIFHWADDR, &interface );
191 * Getting address, port, ... of the server
195 bzero( &sa_server, sizeof(struct sockaddr_in) );
196 /* sin_family is ALWAYS set to AF_INET (see in man 7 ip)*/
197 sa_server.sin_family = AF_INET;
198 /* Giving port on to connect after having convert it*/
199 sa_server.sin_port = htons ( main_GetIntVariable( INPUT_VLAN_PORT_VAR, INPUT_VLAN_PORT_DEFAULT ));
200 /* Giving address after having convert it into binary data*/
201 inet_aton( main_GetPszVariable( INPUT_VLAN_SERVER_VAR, INPUT_VLAN_SERVER_DEFAULT ), &(sa_server.sin_addr) );
204 * Getting address, port, ... of the client
208 bzero( &sa_client, sizeof(struct sockaddr_in) );
209 /* sin_family is ALWAYS set to AF_INET (see in man 7 ip)*/
210 sa_client.sin_family = AF_INET;
211 /* Giving port on to connect after having convert it*/
212 sa_client.sin_port = htons( 0 );
213 /* Giving address after having convert it into binary data*/
214 inet_aton( ipaddr, &(sa_client.sin_addr) );
216 /* Initialization of the socket */
217 i_socket = socket(AF_INET, SOCK_DGRAM, 17 ); /* XXX?? UDP */
218 /* SOCK_DGRAM because here we use DATAGRAM
219 * Sachant qu'il y a un #define AF_INET = PF_INET dans sys/socket.h et que PF_INET est le IP protocol family ...
220 * Protocol is in #define, should be 17 for udp */
222 /* Elaborate the message to send */
223 sprintf( mess , "%d %s %2.2x%2.2x%2.2x%2.2x%2.2x%2.2x %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x \n",
225 interface.ifr_hwaddr.sa_data[0] & 0xff,
226 interface.ifr_hwaddr.sa_data[1] & 0xff,
227 interface.ifr_hwaddr.sa_data[2] & 0xff,
228 interface.ifr_hwaddr.sa_data[3] & 0xff,
229 interface.ifr_hwaddr.sa_data[4] & 0xff,
230 interface.ifr_hwaddr.sa_data[5] & 0xff,
231 interface.ifr_hwaddr.sa_data[0] & 0xff,
232 interface.ifr_hwaddr.sa_data[1] & 0xff,
233 interface.ifr_hwaddr.sa_data[2] & 0xff,
234 interface.ifr_hwaddr.sa_data[3] & 0xff,
235 interface.ifr_hwaddr.sa_data[4] & 0xff,
236 interface.ifr_hwaddr.sa_data[5] & 0xff
239 /* Send the message */
240 intf_DbgMsg("%s\n", mess);
241 sendto(i_socket,mess,80,0,(struct sockaddr *)&sa_server,sizeof(struct sockaddr));
243 /*Close the socket */