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
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
28 #include <errno.h> /* ENOMEM */
29 #include <stdio.h> /* sprintf() */
30 #include <unistd.h> /* close() */
31 #include <string.h> /* strerror(), bzero() */
32 #include <stdlib.h> /* free() */
34 #if defined(SYS_BSD) || defined(SYS_BEOS)
35 #include <netinet/in.h> /* struct in_addr */
36 #include <sys/socket.h> /* struct sockaddr */
39 #if defined(SYS_LINUX) || defined(SYS_BSD) || defined(SYS_GNU)
40 #include <arpa/inet.h> /* inet_ntoa(), inet_aton() */
44 #include <sys/ioctl.h> /* ioctl() */
45 #include <net/if.h> /* interface (arch-dependent) */
53 #include "input_vlan.h"
57 /*****************************************************************************
58 * input_vlan_t: vlan library data
59 *****************************************************************************
60 * Store global vlan library data.
61 *****************************************************************************/
62 typedef struct input_vlan_s
64 int i_vlan_id; /* current vlan number */
65 mtime_t last_change; /* last change date */
68 /*****************************************************************************
70 *****************************************************************************/
71 static int ZeTrucMucheFunction( int Channel );
73 /*****************************************************************************
74 * input_VlanCreate: initialize global vlan method data
75 *****************************************************************************
76 * Initialize vlan input method global data. This function should be called
77 * once before any input thread is created or any call to other input_Vlan*()
78 * function is attempted.
79 *****************************************************************************/
80 int input_VlanCreate( void )
83 intf_ErrMsg( "error: vlans are not supported under beos\n" );
86 /* Allocate structure */
87 p_main->p_vlan = malloc( sizeof( input_vlan_t ) );
88 if( p_main->p_vlan == NULL )
90 intf_ErrMsg("error: %s\n", strerror(ENOMEM));
94 /* Initialize structure */
95 p_main->p_vlan->i_vlan_id = 0;
96 p_main->p_vlan->last_change = 0;
98 intf_Msg("VLANs initialized\n");
100 #endif /* SYS_BEOS */
103 /*****************************************************************************
104 * input_VlanDestroy: free global vlan method data
105 *****************************************************************************
106 * Free resources allocated by input_VlanMethodInit. This function should be
107 * called at the end of the program.
108 *****************************************************************************/
109 void input_VlanDestroy( void )
111 /* Return to default vlan */
112 if( p_main->p_vlan->i_vlan_id != 0 )
118 free( p_main->p_vlan );
121 /*****************************************************************************
122 * input_VlanJoin: join a vlan
123 *****************************************************************************
124 * This function will try to join a vlan. If the relevant interface is already
125 * on the good vlan, nothing will be done. Else, and if possible (if the
126 * interface is not locked), the vlan server will be contacted and a change will
127 * be requested. The function will block until the change is effective. Note
128 * that once a vlan is no more used, it's interface should be unlocked using
130 * Non 0 will be returned in case of error.
131 *****************************************************************************/
132 int input_VlanJoin( int i_vlan_id )
137 /* If last change is too recent, wait a while */
138 if( mdate() - p_main->p_vlan->last_change < INPUT_VLAN_CHANGE_DELAY )
140 intf_Msg("Waiting before changing VLAN...\n");
141 mwait( p_main->p_vlan->last_change + INPUT_VLAN_CHANGE_DELAY );
143 p_main->p_vlan->last_change = mdate();
144 p_main->p_vlan->i_vlan_id = i_vlan_id;
146 intf_Msg("Joining VLAN %d (channel %d)\n", i_vlan_id + 2, i_vlan_id );
147 return( ZeTrucMucheFunction( i_vlan_id ) ); /* FIXME: join vlan ?? */
148 #endif /* SYS_BEOS */
151 /*****************************************************************************
152 * input_VlanLeave: leave a vlan
153 *****************************************************************************
154 * This function tells the vlan library that the designed interface is no more
155 * locked and than vlan changes can occur.
156 *****************************************************************************/
157 void input_VlanLeave( int i_vlan_id )
162 /* following functions are local */
164 static int ZeTrucMucheFunction( int Channel)
169 struct ifreq interface;
170 struct sockaddr_in sa_server;
171 struct sockaddr_in sa_client;
175 *Looking for informations about the eth0 interface
178 interface.ifr_addr.sa_family = AF_INET;
179 strcpy( interface.ifr_name, main_GetPszVariable( INPUT_IFACE_VAR, INPUT_IFACE_DEFAULT ) );
181 i_socket = socket( AF_INET, SOCK_DGRAM, 0 );
183 /* Looking for the interface IP address */
184 ioctl( i_socket, SIOCGIFDSTADDR, &interface );
185 ipaddr = inet_ntoa((*(struct sockaddr_in *)(&(interface.ifr_addr))).sin_addr );
187 /* Looking for the interface MAC address */
188 ioctl( i_socket, SIOCGIFHWADDR, &interface );
192 * Getting address, port, ... of the server
196 bzero( &sa_server, sizeof(struct sockaddr_in) );
197 /* sin_family is ALWAYS set to AF_INET (see in man 7 ip)*/
198 sa_server.sin_family = AF_INET;
199 /* Giving port on to connect after having convert it*/
200 sa_server.sin_port = htons ( main_GetIntVariable( INPUT_VLAN_PORT_VAR, INPUT_VLAN_PORT_DEFAULT ));
201 /* Giving address after having convert it into binary data*/
202 inet_aton( main_GetPszVariable( INPUT_VLAN_SERVER_VAR, INPUT_VLAN_SERVER_DEFAULT ), &(sa_server.sin_addr) );
205 * Getting address, port, ... of the client
209 bzero( &sa_client, sizeof(struct sockaddr_in) );
210 /* sin_family is ALWAYS set to AF_INET (see in man 7 ip)*/
211 sa_client.sin_family = AF_INET;
212 /* Giving port on to connect after having convert it*/
213 sa_client.sin_port = htons( 0 );
214 /* Giving address after having convert it into binary data*/
215 inet_aton( ipaddr, &(sa_client.sin_addr) );
217 /* Initialization of the socket */
218 i_socket = socket(AF_INET, SOCK_DGRAM, 17 ); /* XXX?? UDP */
219 /* SOCK_DGRAM because here we use DATAGRAM
220 * Sachant qu'il y a un #define AF_INET = PF_INET dans sys/socket.h et que PF_INET est le IP protocol family ...
221 * Protocol is in #define, should be 17 for udp */
223 /* Elaborate the message to send */
224 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",
226 interface.ifr_hwaddr.sa_data[0] & 0xff,
227 interface.ifr_hwaddr.sa_data[1] & 0xff,
228 interface.ifr_hwaddr.sa_data[2] & 0xff,
229 interface.ifr_hwaddr.sa_data[3] & 0xff,
230 interface.ifr_hwaddr.sa_data[4] & 0xff,
231 interface.ifr_hwaddr.sa_data[5] & 0xff,
232 interface.ifr_hwaddr.sa_data[0] & 0xff,
233 interface.ifr_hwaddr.sa_data[1] & 0xff,
234 interface.ifr_hwaddr.sa_data[2] & 0xff,
235 interface.ifr_hwaddr.sa_data[3] & 0xff,
236 interface.ifr_hwaddr.sa_data[4] & 0xff,
237 interface.ifr_hwaddr.sa_data[5] & 0xff
240 /* Send the message */
241 intf_DbgMsg("%s\n", mess);
242 sendto(i_socket,mess,80,0,(struct sockaddr *)&sa_server,sizeof(struct sockaddr));
244 /*Close the socket */