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/*
* Copyright (C) 2000 Lennert Buytenhek
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/fcntl.h>
#include <linux/sockios.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include "libbridge.h"
#include "libbridge_private.h"
int br_device_ioctl(const struct bridge *br, unsigned long arg0,
unsigned long arg1, unsigned long arg2, unsigned long arg3)
{
unsigned long args[4];
struct ifreq ifr;
args[0] = arg0;
args[1] = arg1;
args[2] = arg2;
args[3] = arg3;
strncpy(ifr.ifr_name, br->ifname, IFNAMSIZ);
((unsigned long *)(&ifr.ifr_data))[0] = (unsigned long)args;
#ifdef SIOCBRDEV
/* New interface which allows 32bit/64 bit compatiability to work. */
{ int err = ioctl(br_socket_fd, SIOCBRDEV, &ifr);
if (err >= 0)
return err;
}
#endif
/* Old fall back */
return ioctl(br_socket_fd, SIOCDEVPRIVATE, &ifr);
}
int br_add_interface(struct bridge *br, int ifindex)
{
if (br_device_ioctl(br, BRCTL_ADD_IF, ifindex, 0, 0) < 0)
return errno;
return 0;
}
int br_del_interface(struct bridge *br, int ifindex)
{
if (br_device_ioctl(br, BRCTL_DEL_IF, ifindex, 0, 0) < 0)
return errno;
return 0;
}
int br_set_bridge_forward_delay(struct bridge *br, struct timeval *tv)
{
unsigned long jif = __tv_to_jiffies(tv);
if (br_device_ioctl(br, BRCTL_SET_BRIDGE_FORWARD_DELAY,
jif, 0, 0) < 0)
return errno;
return 0;
}
int br_set_bridge_hello_time(struct bridge *br, struct timeval *tv)
{
unsigned long jif = __tv_to_jiffies(tv);
if (br_device_ioctl(br, BRCTL_SET_BRIDGE_HELLO_TIME, jif, 0, 0) < 0)
return errno;
return 0;
}
int br_set_bridge_max_age(struct bridge *br, struct timeval *tv)
{
unsigned long jif = __tv_to_jiffies(tv);
if (br_device_ioctl(br, BRCTL_SET_BRIDGE_MAX_AGE, jif, 0, 0) < 0)
return errno;
return 0;
}
int br_set_ageing_time(struct bridge *br, struct timeval *tv)
{
unsigned long jif = __tv_to_jiffies(tv);
if (br_device_ioctl(br, BRCTL_SET_AGEING_TIME, jif, 0, 0) < 0)
return errno;
return 0;
}
int br_set_gc_interval(struct bridge *br, struct timeval *tv)
{
return 0;
}
int br_set_stp_state(struct bridge *br, int stp_state)
{
if (br_device_ioctl(br, BRCTL_SET_BRIDGE_STP_STATE, stp_state,
0, 0) < 0)
return errno;
return 0;
}
int br_set_bridge_priority(struct bridge *br, int bridge_priority)
{
if (br_device_ioctl(br, BRCTL_SET_BRIDGE_PRIORITY, bridge_priority,
0, 0) < 0)
return errno;
return 0;
}
int br_set_port_priority(struct port *p, int port_priority)
{
if (br_device_ioctl(p->parent, BRCTL_SET_PORT_PRIORITY, p->index,
port_priority, 0) < 0)
return errno;
return 0;
}
int br_set_path_cost(struct port *p, int path_cost)
{
if (br_device_ioctl(p->parent, BRCTL_SET_PATH_COST, p->index,
path_cost, 0) < 0)
return errno;
return 0;
}
static void __copy_fdb(struct fdb_entry *ent, const struct __fdb_entry *f)
{
memcpy(ent->mac_addr, f->mac_addr, 6);
ent->port_no = f->port_no;
ent->is_local = f->is_local;
__jiffies_to_tv(&ent->ageing_timer_value, f->ageing_timer_value);
}
int br_read_fdb(struct bridge *br, struct fdb_entry *fdbs, int offset, int num)
{
struct __fdb_entry f[num];
int i;
int numread;
again:
numread = br_device_ioctl(br, BRCTL_GET_FDB_ENTRIES,
(unsigned long)f, num, offset);
if (numread < 0) {
if (errno == EAGAIN)
goto again;
return -errno;
}
for (i=0;i<numread;i++)
__copy_fdb(fdbs+i, f+i);
return numread;
}
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