0
0
mirror of https://gitlab.nic.cz/labs/bird.git synced 2024-12-23 02:01:55 +00:00
bird/sysdep/unix/krt-set.c
Martin Mares 7de45ba4a0 Kernel route syncer supports multiple tables.
The changes are just too extensive for lazy me to list them
there, but see the comment at the top of sysdep/unix/krt.c.
The code got a bit more ifdeffy than I'd like, though.

Also fixed a bunch of FIXME's and added a couple of others. :)
1999-08-03 19:33:22 +00:00

110 lines
2.2 KiB
C

/*
* BIRD -- Unix Routing Table Syncing
*
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <net/route.h>
#define LOCAL_DEBUG
#include "nest/bird.h"
#include "nest/iface.h"
#include "nest/route.h"
#include "nest/protocol.h"
#include "lib/unix.h"
#include "lib/krt.h"
int
krt_capable(rte *e)
{
rta *a = e->attrs;
#ifdef CONFIG_AUTO_ROUTES
if (a->source == RTS_DEVICE)
return 0;
#endif
return
a->cast == RTC_UNICAST &&
(a->dest == RTD_ROUTER
|| a->dest == RTD_DEVICE
#ifdef RTF_REJECT
|| a->dest == RTD_UNREACHABLE
#endif
);
}
static void
krt_ioctl(int ioc, rte *e, char *name)
{
net *net = e->net;
struct rtentry re;
rta *a = e->attrs;
bzero(&re, sizeof(re));
fill_in_sockaddr((struct sockaddr_in *) &re.rt_dst, net->n.prefix, 0);
fill_in_sockaddr((struct sockaddr_in *) &re.rt_genmask, ipa_mkmask(net->n.pxlen), 0);
re.rt_flags = RTF_UP;
if (net->n.pxlen == 32)
re.rt_flags |= RTF_HOST;
switch (a->dest)
{
case RTD_ROUTER:
fill_in_sockaddr((struct sockaddr_in *) &re.rt_gateway, a->gw, 0);
re.rt_flags |= RTF_GATEWAY;
break;
case RTD_DEVICE:
re.rt_dev = a->iface->name;
break;
#ifdef RTF_REJECT
case RTD_UNREACHABLE:
re.rt_flags |= RTF_REJECT;
break;
#endif
default:
bug("krt set: unknown flags, but not filtered");
}
if (ioctl(if_scan_sock, ioc, &re) < 0)
log(L_ERR "%s(%I/%d): %m", name, net->n.prefix, net->n.pxlen);
}
void
krt_set_notify(struct krt_proto *p, net *net, rte *new, rte *old)
{
if (old)
{
DBG("krt_remove_route(%I/%d)\n", net->n.prefix, net->n.pxlen);
krt_ioctl(SIOCDELRT, old, "SIOCDELRT");
}
if (new)
{
DBG("krt_add_route(%I/%d)\n", net->n.prefix, net->n.pxlen);
krt_ioctl(SIOCADDRT, new, "SIOCADDRT");
}
}
void
krt_set_start(struct krt_proto *x, int first)
{
if (if_scan_sock < 0)
bug("krt set: missing socket");
}
void
krt_set_construct(struct krt_config *c)
{
}
void
krt_set_shutdown(struct krt_proto *x, int last)
{
}