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/* This is part of um-ViewOS
* The user-mode implementation of OSVIEW -- A Process with a View
*
* UMNETNATIVE: Virtual Native Network
* Copyright (C) 2008 Renzo Davoli <renzo@cs.unibo.it>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* 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.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <linux/net.h>
#include <linux/net.h>
#include <linux/sockios.h>
#include <linux/if.h>
#include "umnet.h"
static int umnetnative_ioctlparms(int fd, int req, struct umnet *nethandle)
{
switch (req) {
case FIONREAD:
return sizeof(int) | IOCTL_W;
case FIONBIO:
return sizeof(int) | IOCTL_R;
case SIOCGIFCONF:
return sizeof(struct ifconf) | IOCTL_R | IOCTL_W;
case SIOCGSTAMP:
return sizeof(struct timeval) | IOCTL_W;
case SIOCGIFTXQLEN:
return sizeof(struct ifreq) | IOCTL_R | IOCTL_W;
case SIOCGIFFLAGS:
case SIOCGIFADDR:
case SIOCGIFDSTADDR:
case SIOCGIFBRDADDR:
case SIOCGIFNETMASK:
case SIOCGIFMETRIC:
case SIOCGIFMEM:
case SIOCGIFMTU:
case SIOCGIFHWADDR:
case SIOCGIFINDEX:
return sizeof(struct ifreq) | IOCTL_R | IOCTL_W;
case SIOCSIFFLAGS:
case SIOCSIFADDR:
case SIOCSIFDSTADDR:
case SIOCSIFBRDADDR:
case SIOCSIFNETMASK:
case SIOCSIFMETRIC:
case SIOCSIFMEM:
case SIOCSIFMTU:
case SIOCSIFHWADDR:
return sizeof(struct ifreq) | IOCTL_R;
default:
return 0;
}
}
int umnetnative_msocket (int domain, int type, int protocol,
struct umnet *nethandle){
return msocket(NULL,domain, type, protocol);
}
int umnetnative_init (char *source, char *mountpoint, unsigned long flags, char *args, struct umnet *nethandle) {
return 0;
}
int umnetnative_fini (struct umnet *nethandle){
return 0;
}
int um_mod_event_subscribe(void (* cb)(), void *arg, int fd, int how);
static int umnetnative_ioctl(int d, int request, void *arg)
{
if (request == SIOCGIFCONF) {
int rv;
void *save;
struct ifconf *ifc=(struct ifconf *)arg;
save=ifc->ifc_buf;
ioctl(d,request,arg);
ifc->ifc_buf=malloc(ifc->ifc_len);
um_mod_umoven((long) save,ifc->ifc_len,ifc->ifc_buf);
rv=ioctl(d,request,arg);
if (rv>=0)
um_mod_ustoren((long) save,ifc->ifc_len,ifc->ifc_buf);
free(ifc->ifc_buf);
ifc->ifc_buf=save;
return rv;
}
return ioctl(d,request,arg);
}
struct umnet_operations umnet_ops={
.msocket=umnetnative_msocket,
.bind=bind,
.connect=connect,
.listen=listen,
.accept=accept,
.getsockname=getsockname,
.getpeername=getpeername,
.send=send,
.sendto=sendto,
.recvfrom=recvfrom,
.sendmsg=sendmsg,
.recvmsg=recvmsg,
.getsockopt=getsockopt,
.setsockopt=setsockopt,
.read=read,
.write=write,
.ioctl=umnetnative_ioctl,
.close=close,
.fcntl=(void *)fcntl,
.ioctlparms=umnetnative_ioctlparms,
.init=umnetnative_init,
.fini=umnetnative_fini,
.event_subscribe=um_mod_event_subscribe
};
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