void
route_Change(struct bundle *bundle, struct sticky_route *r,
const struct ncpaddr *me, const struct ncpaddr *peer)
{
struct ncpaddr dst;
for (; r; r = r->next) {
ncprange_getaddr(&r->dst, &dst);
if (ncpaddr_family(me) == AF_INET) {
if ((r->type & ROUTE_DSTMYADDR) && !ncpaddr_equal(&dst, me)) {
rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
ncprange_sethost(&r->dst, me);
if (r->type & ROUTE_GWHISADDR)
ncpaddr_copy(&r->gw, peer);
} else if ((r->type & ROUTE_DSTHISADDR) && !ncpaddr_equal(&dst, peer)) {
rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
ncprange_sethost(&r->dst, peer);
if (r->type & ROUTE_GWHISADDR)
ncpaddr_copy(&r->gw, peer);
} else if ((r->type & ROUTE_DSTDNS0) && !ncpaddr_equal(&dst, peer)) {
if (bundle->ncp.ipcp.ns.dns[0].s_addr == INADDR_NONE)
continue;
rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
if (r->type & ROUTE_GWHISADDR)
ncpaddr_copy(&r->gw, peer);
} else if ((r->type & ROUTE_DSTDNS1) && !ncpaddr_equal(&dst, peer)) {
if (bundle->ncp.ipcp.ns.dns[1].s_addr == INADDR_NONE)
continue;
rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
if (r->type & ROUTE_GWHISADDR)
ncpaddr_copy(&r->gw, peer);
} else if ((r->type & ROUTE_GWHISADDR) && !ncpaddr_equal(&r->gw, peer))
ncpaddr_copy(&r->gw, peer);
#ifndef NOINET6
} else if (ncpaddr_family(me) == AF_INET6) {
if ((r->type & ROUTE_DSTMYADDR6) && !ncpaddr_equal(&dst, me)) {
rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
ncprange_sethost(&r->dst, me);
if (r->type & ROUTE_GWHISADDR)
ncpaddr_copy(&r->gw, peer);
} else if ((r->type & ROUTE_DSTHISADDR6) && !ncpaddr_equal(&dst, peer)) {
rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
ncprange_sethost(&r->dst, peer);
if (r->type & ROUTE_GWHISADDR)
ncpaddr_copy(&r->gw, peer);
} else if ((r->type & ROUTE_GWHISADDR6) && !ncpaddr_equal(&r->gw, peer))
ncpaddr_copy(&r->gw, peer);
#endif
}
rt_Set(bundle, RTM_ADD, &r->dst, &r->gw, 1, 0);
}
}
/*
* Delete routes associated with our interface
*/
void
route_IfDelete(struct bundle *bundle, int all)
{
struct rt_msghdr *rtm;
struct sockaddr *sa[RTAX_MAX];
struct ncprange range;
int pass;
size_t needed;
char *sp, *cp, *ep;
int mib[6];
log_Printf(LogDEBUG, "route_IfDelete (%d)\n", bundle->iface->index);
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = 0;
mib[4] = NET_RT_DUMP;
mib[5] = 0;
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
log_Printf(LogERROR, "route_IfDelete: sysctl: estimate: %s\n",
strerror(errno));
return;
}
sp = malloc(needed);
if (sp == NULL)
return;
if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
log_Printf(LogERROR, "route_IfDelete: sysctl: getroute: %s\n",
strerror(errno));
free(sp);
return;
}
ep = sp + needed;
for (pass = 0; pass < 2; pass++) {
/*
* We do 2 passes. The first deletes all cloned routes. The second
* deletes all non-cloned routes. This is done to avoid
* potential errors from trying to delete route X after route Y where
* route X was cloned from route Y (and is no longer there 'cos it
* may have gone with route Y).
*/
if (RTF_WASCLONED == 0 && pass == 0)
/* So we can't tell ! */
continue;
for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
rtm = (struct rt_msghdr *)cp;
route_ParseHdr(rtm, sa);
if (rtm->rtm_index == bundle->iface->index &&
sa[RTAX_DST] && sa[RTAX_GATEWAY] &&
(sa[RTAX_DST]->sa_family == AF_INET
#ifndef NOINET6
|| sa[RTAX_DST]->sa_family == AF_INET6
#endif
) &&
(all || (rtm->rtm_flags & RTF_GATEWAY))) {
if (log_IsKept(LogDEBUG)) {
char gwstr[41];
struct ncpaddr gw;
ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]);
ncpaddr_setsa(&gw, sa[RTAX_GATEWAY]);
snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(&gw));
log_Printf(LogDEBUG, "Found %s %s\n", ncprange_ntoa(&range), gwstr);
}
if (sa[RTAX_GATEWAY]->sa_family == AF_INET ||
#ifndef NOINET6
sa[RTAX_GATEWAY]->sa_family == AF_INET6 ||
#endif
sa[RTAX_GATEWAY]->sa_family == AF_LINK) {
if ((pass == 0 && (rtm->rtm_flags & RTF_WASCLONED)) ||
(pass == 1 && !(rtm->rtm_flags & RTF_WASCLONED))) {
ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]);
rt_Set(bundle, RTM_DELETE, &range, NULL, 0, 0);
} else
log_Printf(LogDEBUG, "route_IfDelete: Skip it (pass %d)\n", pass);
} else
log_Printf(LogDEBUG,
"route_IfDelete: Can't remove routes for family %d\n",
sa[RTAX_GATEWAY]->sa_family);
}
}
}
free(sp);
}
static int
ipcp_SetIPv6address(struct ipv6cp *ipv6cp, u_char *myifid, u_char *hisifid)
{
struct bundle *bundle = ipv6cp->fsm.bundle;
struct in6_addr myaddr, hisaddr;
struct ncprange myrange, range;
struct ncpaddr addr;
struct sockaddr_storage ssdst, ssgw, ssmask;
struct sockaddr *sadst, *sagw, *samask;
sadst = (struct sockaddr *)&ssdst;
sagw = (struct sockaddr *)&ssgw;
samask = (struct sockaddr *)&ssmask;
memset(&myaddr, '\0', sizeof myaddr);
memset(&hisaddr, '\0', sizeof hisaddr);
myaddr.s6_addr[0] = 0xfe;
myaddr.s6_addr[1] = 0x80;
memcpy(&myaddr.s6_addr[8], myifid, IPV6CP_IFIDLEN);
#if 0
myaddr.s6_addr[8] |= 0x02; /* set 'universal' bit */
#endif
hisaddr.s6_addr[0] = 0xfe;
hisaddr.s6_addr[1] = 0x80;
memcpy(&hisaddr.s6_addr[8], hisifid, IPV6CP_IFIDLEN);
#if 0
hisaddr.s6_addr[8] |= 0x02; /* set 'universal' bit */
#endif
ncpaddr_setip6(&ipv6cp->myaddr, &myaddr);
ncpaddr_setip6(&ipv6cp->hisaddr, &hisaddr);
ncprange_set(&myrange, &ipv6cp->myaddr, 64);
if (!iface_Add(bundle->iface, &bundle->ncp, &myrange, &ipv6cp->hisaddr,
IFACE_ADD_FIRST|IFACE_FORCE_ADD|IFACE_SYSTEM))
return 0;
if (!Enabled(bundle, OPT_IFACEALIAS))
iface_Clear(bundle->iface, &bundle->ncp, AF_INET6,
IFACE_CLEAR_ALIASES|IFACE_SYSTEM);
ncpaddr_setip6(&addr, &in6addr_linklocal_mcast);
ncprange_set(&range, &addr, 32);
rt_Set(bundle, RTM_ADD, &range, &ipv6cp->myaddr, 1, 0);
if (bundle->ncp.cfg.sendpipe > 0 || bundle->ncp.cfg.recvpipe > 0) {
ncprange_getsa(&myrange, &ssgw, &ssmask);
if (ncpaddr_isset(&ipv6cp->hisaddr))
ncpaddr_getsa(&ipv6cp->hisaddr, &ssdst);
else
sadst = NULL;
rt_Update(bundle, sadst, sagw, samask, NULL, NULL);
}
if (Enabled(bundle, OPT_SROUTES))
route_Change(bundle, bundle->ncp.route, &ipv6cp->myaddr, &ipv6cp->hisaddr);
#ifndef NORADIUS
if (bundle->radius.valid)
route_Change(bundle, bundle->radius.ipv6routes, &ipv6cp->myaddr,
&ipv6cp->hisaddr);
#endif
return 1; /* Ok */
}
