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() */
33 #include <sys/time.h> /* timeval */
35 #if defined(SYS_BSD) || defined(SYS_BEOS)
36 #include <netinet/in.h> /* struct in_addr */
37 #include <sys/socket.h> /* struct sockaddr */
40 #if defined(SYS_LINUX) || defined(SYS_BSD) || defined(SYS_GNU)
41 #include <arpa/inet.h> /* inet_ntoa(), inet_aton() */
45 #include <sys/ioctl.h> /* ioctl() */
46 #include <net/if.h> /* interface (arch-dependent) */
54 #include "input_vlan.h"
58 /*****************************************************************************
59 * input_vlan_t: vlan library data
60 *****************************************************************************
61 * Store global vlan library data.
62 *****************************************************************************/
63 typedef struct input_vlan_s
65 int i_vlan_id; /* current vlan number */
66 mtime_t last_change; /* last change date */
69 /*****************************************************************************
71 *****************************************************************************/
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_VlanLeave: leave a vlan
123 *****************************************************************************
124 * This function tells the vlan library that the designed interface is no more
125 * locked and than vlan changes can occur.
126 *****************************************************************************/
127 void input_VlanLeave( int i_vlan_id )
132 /*****************************************************************************
133 * input_VlanJoin: join a vlan
134 *****************************************************************************
135 * This function will try to join a vlan. If the relevant interface is already
136 * on the good vlan, nothing will be done. Else, and if possible (if the
137 * interface is not locked), the vlan server will be contacted and a change will
138 * be requested. The function will block until the change is effective. Note
139 * that once a vlan is no more used, it's interface should be unlocked using
141 * Non 0 will be returned in case of error.
142 *****************************************************************************/
143 int input_VlanJoin( int i_vlan_id )
149 #define SERVER "138.195.130.90"
150 #define INTERFACE "eth0"
151 /* default server port */
152 #define VLANSERVER_PORT 6010
156 struct ifreq interface;
157 struct sockaddr_in sa_server;
158 struct sockaddr_in sa_client;
159 unsigned int version = 12;
161 struct timeval *date_cl;
163 long unsigned int date;
168 /* If last change is too recent, wait a while */
169 if( mdate() - p_main->p_vlan->last_change < INPUT_VLAN_CHANGE_DELAY )
171 intf_Msg("Waiting before changing VLAN...\n");
172 mwait( p_main->p_vlan->last_change + INPUT_VLAN_CHANGE_DELAY );
174 p_main->p_vlan->last_change = mdate();
175 p_main->p_vlan->i_vlan_id = i_vlan_id;
177 intf_Msg("Joining VLAN %d (channel %d)\n", i_vlan_id + 2, i_vlan_id );
180 *Looking for informations about the eth0 interface
182 interface.ifr_addr.sa_family = AF_INET;
183 strcpy( interface.ifr_name, INTERFACE );
187 * Initialysing the socket
189 socket_cl = socket( AF_INET, SOCK_DGRAM, 0 );
190 intf_DbgMsg( "socket %d\n", socket_cl );
194 * Getting the server's information
196 bzero (&sa_server, sizeof (struct sockaddr_in));
197 sa_server.sin_family = AF_INET;
198 sa_server.sin_port = htons (VLANSERVER_PORT);
199 inet_aton (SERVER, &(sa_server.sin_addr));
202 * Looking for the interface MAC address
204 ioctl( socket_cl, SIOCGIFHWADDR, &interface );
205 intf_DbgMsg( "macaddr == %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
206 interface.ifr_hwaddr.sa_data[0] & 0xff,
207 interface.ifr_hwaddr.sa_data[1] & 0xff,
208 interface.ifr_hwaddr.sa_data[2] & 0xff,
209 interface.ifr_hwaddr.sa_data[3] & 0xff,
210 interface.ifr_hwaddr.sa_data[4] & 0xff,
211 interface.ifr_hwaddr.sa_data[5] & 0xff );
214 * Getting date of the client
216 date_cl = malloc (sizeof (struct timeval));
217 if (gettimeofday (date_cl, 0) == -1)
221 date = date_cl->tv_sec;
222 intf_DbgMsg ("date %lu\n", date);
226 * Build of the message
228 sprintf (mess, "%d %u %lu %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x \n",
229 i_vlan_id, version, date,
230 interface.ifr_hwaddr.sa_data[0] & 0xff,
231 interface.ifr_hwaddr.sa_data[1] & 0xff,
232 interface.ifr_hwaddr.sa_data[2] & 0xff,
233 interface.ifr_hwaddr.sa_data[3] & 0xff,
234 interface.ifr_hwaddr.sa_data[4] & 0xff,
235 interface.ifr_hwaddr.sa_data[5] & 0xff);
236 intf_DbgMsg ("The message is %s\n", mess);
242 bzero (&sa_client, sizeof (struct sockaddr_in));
243 sa_client.sin_family = AF_INET;
244 sa_client.sin_port = htons( 4312 );
245 sa_client.sin_addr.s_addr = INADDR_ANY;
246 intf_DbgMsg ("socket %d\n", socket_cl = socket( AF_INET, SOCK_DGRAM, 0 ));
247 fromlen = sizeof (struct sockaddr);
248 intf_DbgMsg( "bind %i\n", bind( socket_cl, (struct sockaddr *)(&sa_client), sizeof( struct sockaddr )));
254 sendto (socket_cl, mess, 80, 0, (struct sockaddr *)(&sa_server), sizeof (struct sockaddr ));
259 do {z++;} while (mess[z]!=':');
260 do {z++;} while (mess[z]!='e');
261 printf("meuuh %d %d\n",(unsigned)mess[z+3],(unsigned)mess[z+4]);
267 * Waiting 5 sec for one answer from the server
272 FD_SET( socket_cl, &rfds );
273 nbanswer = select( socket_cl + 1, &rfds, NULL, NULL, &time);
276 intf_DbgMsg( "no answer\n" );
278 else if( nbanswer == -1 )
280 intf_DbgMsg( "I couldn't recieve the answer\n" );
284 recvfrom (socket_cl, &answer, sizeof( char ), 0, (struct sockaddr *)(&sa_client), &fromlen);
285 intf_DbgMsg( "the answer : %hhd\n", answer );
288 intf_DbgMsg( "The server doesn't succed to create the thread\n" );
290 else if( answer == 0 )
292 intf_DbgMsg( "The server try to change the channel\n" );
296 intf_DbgMsg( "I don't know what is this answer !\n" );