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/*
* usvc.c - User-space services (mainly netlink) replacement for tcsim
*
* Written 2001-2003 by Werner Almesberger
* Copyright 2001 EPFL-ICA, Network Robots
* Copyright 2002 Bivio Networks, Werner Almesberger
* Copyright 2003 Werner Almesberger
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/uio.h>
#include <netinet/in.h>
#include <linux/types.h>
#include <linux/rtnetlink.h>
#include <linux/netlink.h>
#include <memutil.h>
#include "libnetlink.h"
#include "tcsim.h"
/*
* Everything here comes straight from iproute2/lib/libnetlink.c
*/
int rtnl_open(struct rtnl_handle *rth, unsigned subscriptions)
{
memset(&rth->local,0,sizeof(rth->local));
rth->seq = 0;
return 1; /* stdin ;-) */
}
void rtnl_close(struct rtnl_handle *rth)
{
/* do nothing */
}
int librtnl_sendto(int s,const void *msg,int len,unsigned int flags,
const struct sockaddr *to,int tolen); /* extern in ulib */
int librtnl_sendto(int s,const void *msg,int len,unsigned int flags,
const struct sockaddr *to,int tolen)
{
(void) pseudo_netlink_to_kernel(msg,len);
return len;
}
int librtnl_sendmsg(int s,const struct msghdr *msg,unsigned int flags);
/* extern in ulib */
int librtnl_sendmsg(int s,const struct msghdr *msg,unsigned int flags)
{
int i,len = 0;
unsigned char *buf;
int ret;
for (i = 0; i < msg->msg_iovlen; i++) len += msg->msg_iov[i].iov_len;
buf = alloc(len);
len = 0;
for (i = 0; i < msg->msg_iovlen; i++) {
memcpy(buf+len,msg->msg_iov[i].iov_base,msg->msg_iov[i].iov_len);
len += msg->msg_iov[i].iov_len;
}
ret = librtnl_sendto(s,buf,len,0,NULL,0);
free(buf);
return ret;
}
int librtnl_recvmsg(int s,const struct msghdr *msg,unsigned int flags);
/* extern in ulib */
int librtnl_recvmsg(int s,const struct msghdr *msg,unsigned int flags)
{
int ret;
ret = pseudo_netlink_from_kernel(msg->msg_iov[0].iov_base,
msg->msg_iov[0].iov_len);
if (ret > 0) msg->msg_iov[0].iov_len = ret;
return ret;
}
int ll_init_map(struct rtnl_handle *rth);
/* extern in ulib */
int ll_init_map(struct rtnl_handle *rth)
{
return 0;
}
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