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);
}
}
int
iface_Delete(struct iface *iface, struct ncp *ncp, const struct ncpaddr *del)
{
struct ncpaddr found;
unsigned n;
int res, s;
if ((s = ID0socket(ncpaddr_family(del), SOCK_DGRAM, 0)) == -1) {
log_Printf(LogERROR, "iface_Delete: socket(): %s\n", strerror(errno));
return 0;
}
for (n = res = 0; n < iface->addrs; n++) {
ncprange_getaddr(&iface->addr[n].ifa, &found);
if (ncpaddr_equal(&found, del)) {
if (iface_addr_Zap(iface->name, iface->addr + n, s)) {
ncp_IfaceAddrDeleted(ncp, iface->addr + n);
bcopy(iface->addr + n + 1, iface->addr + n,
(iface->addrs - n - 1) * sizeof *iface->addr);
iface->addrs--;
res = 1;
}
break;
}
}
close(s);
return res;
}
void
filter_AdjustAddr(struct filter *filter, struct ncpaddr *local,
struct ncpaddr *remote, struct in_addr *dns)
{
struct filterent *fp;
int n;
for (fp = filter->rule, n = 0; n < MAXFILTERS; fp++, n++)
if (fp->f_action != A_NONE) {
if (local) {
if (fp->f_srctype == T_MYADDR && ncpaddr_family(local) == AF_INET)
ncprange_sethost(&fp->f_src, local);
if (fp->f_dsttype == T_MYADDR && ncpaddr_family(local) == AF_INET)
ncprange_sethost(&fp->f_dst, local);
#ifndef NOINET6
if (fp->f_srctype == T_MYADDR6 && ncpaddr_family(local) == AF_INET6)
ncprange_sethost(&fp->f_src, local);
if (fp->f_dsttype == T_MYADDR6 && ncpaddr_family(local) == AF_INET6)
ncprange_sethost(&fp->f_dst, local);
#endif
}
if (remote) {
if (fp->f_srctype == T_HISADDR && ncpaddr_family(remote) == AF_INET)
ncprange_sethost(&fp->f_src, remote);
if (fp->f_dsttype == T_HISADDR && ncpaddr_family(remote) == AF_INET)
ncprange_sethost(&fp->f_dst, remote);
#ifndef NOINET6
if (fp->f_srctype == T_HISADDR6 && ncpaddr_family(remote) == AF_INET6)
ncprange_sethost(&fp->f_src, remote);
if (fp->f_dsttype == T_HISADDR6 && ncpaddr_family(remote) == AF_INET6)
ncprange_sethost(&fp->f_dst, remote);
#endif
}
if (dns) {
if (fp->f_srctype == T_DNS0)
ncprange_setip4host(&fp->f_src, dns[0]);
if (fp->f_dsttype == T_DNS0)
ncprange_setip4host(&fp->f_dst, dns[0]);
if (fp->f_srctype == T_DNS1)
ncprange_setip4host(&fp->f_src, dns[1]);
if (fp->f_dsttype == T_DNS1)
ncprange_setip4host(&fp->f_dst, dns[1]);
}
}
}
int
iface_Show(struct cmdargs const *arg)
{
struct ncpaddr ncpaddr;
struct iface *iface = arg->bundle->iface, *current;
unsigned f;
int flags;
#ifndef NOINET6
int scopeid, width;
#endif
struct in_addr mask;
current = iface_Create(iface->name);
flags = iface->flags = current->flags;
iface_Free(current);
prompt_Printf(arg->prompt, "%s (idx %d) <", iface->name, iface->index);
for (f = 0; f < sizeof if_flags / sizeof if_flags[0]; f++)
if ((if_flags[f].flag & flags)) {
prompt_Printf(arg->prompt, "%s%s", flags == iface->flags ? "" : ",",
if_flags[f].value);
flags &= ~if_flags[f].flag;
}
#if 0
if (flags)
prompt_Printf(arg->prompt, "%s0x%x", flags == iface->flags ? "" : ",",
flags);
#endif
prompt_Printf(arg->prompt, "> mtu %lu has %d address%s:\n", iface->mtu,
iface->addrs, iface->addrs == 1 ? "" : "es");
for (f = 0; f < iface->addrs; f++) {
ncprange_getaddr(&iface->addr[f].ifa, &ncpaddr);
switch (ncprange_family(&iface->addr[f].ifa)) {
case AF_INET:
prompt_Printf(arg->prompt, " inet %s --> ", ncpaddr_ntoa(&ncpaddr));
if (ncpaddr_family(&iface->addr[f].peer) == AF_UNSPEC)
prompt_Printf(arg->prompt, "255.255.255.255");
else
prompt_Printf(arg->prompt, "%s", ncpaddr_ntoa(&iface->addr[f].peer));
ncprange_getip4mask(&iface->addr[f].ifa, &mask);
prompt_Printf(arg->prompt, " netmask 0x%08lx", (long)ntohl(mask.s_addr));
break;
#ifndef NOINET6
case AF_INET6:
prompt_Printf(arg->prompt, " inet6 %s", ncpaddr_ntoa(&ncpaddr));
if (ncpaddr_family(&iface->addr[f].peer) != AF_UNSPEC)
prompt_Printf(arg->prompt, " --> %s",
ncpaddr_ntoa(&iface->addr[f].peer));
ncprange_getwidth(&iface->addr[f].ifa, &width);
if (ncpaddr_family(&iface->addr[f].peer) == AF_UNSPEC)
prompt_Printf(arg->prompt, " prefixlen %d", width);
if ((scopeid = ncprange_scopeid(&iface->addr[f].ifa)) != -1)
prompt_Printf(arg->prompt, " scopeid 0x%x", (unsigned)scopeid);
break;
#endif
}
prompt_Printf(arg->prompt, "\n");
}
return 0;
}
static int
iface_addr_Add(const char *name, struct iface_addr *addr, int s)
{
struct ifaliasreq ifra;
#ifndef NOINET6
struct in6_aliasreq ifra6;
#endif
struct sockaddr_in *me4, *msk4, *peer4;
struct sockaddr_storage ssme, sspeer, ssmsk;
int res;
ncprange_getsa(&addr->ifa, &ssme, &ssmsk);
ncpaddr_getsa(&addr->peer, &sspeer);
res = 0;
switch (ncprange_family(&addr->ifa)) {
case AF_INET:
memset(&ifra, '\0', sizeof ifra);
strncpy(ifra.ifra_name, name, sizeof ifra.ifra_name - 1);
me4 = (struct sockaddr_in *)&ifra.ifra_addr;
memcpy(me4, &ssme, sizeof *me4);
msk4 = (struct sockaddr_in *)&ifra.ifra_mask;
memcpy(msk4, &ssmsk, sizeof *msk4);
peer4 = (struct sockaddr_in *)&ifra.ifra_broadaddr;
if (ncpaddr_family(&addr->peer) == AF_UNSPEC) {
peer4->sin_family = AF_INET;
peer4->sin_len = sizeof(*peer4);
peer4->sin_addr.s_addr = INADDR_NONE;
} else
memcpy(peer4, &sspeer, sizeof *peer4);
res = ID0ioctl(s, SIOCAIFADDR, &ifra);
if (log_IsKept(LogDEBUG)) {
char buf[100];
snprintf(buf, sizeof buf, "%s", ncprange_ntoa(&addr->ifa));
log_Printf(LogWARN, "%s: AIFADDR %s -> %s returns %d\n",
ifra.ifra_name, buf, ncpaddr_ntoa(&addr->peer), res);
}
break;
#ifndef NOINET6
case AF_INET6:
memset(&ifra6, '\0', sizeof ifra6);
strncpy(ifra6.ifra_name, name, sizeof ifra6.ifra_name - 1);
memcpy(&ifra6.ifra_addr, &ssme, sizeof ifra6.ifra_addr);
memcpy(&ifra6.ifra_prefixmask, &ssmsk, sizeof ifra6.ifra_prefixmask);
if (ncpaddr_family(&addr->peer) == AF_UNSPEC)
ifra6.ifra_dstaddr.sin6_family = AF_UNSPEC;
else if (memcmp(&((struct sockaddr_in6 *)&ssmsk)->sin6_addr, &in6mask128,
sizeof in6mask128) == 0)
memcpy(&ifra6.ifra_dstaddr, &sspeer, sizeof ifra6.ifra_dstaddr);
ifra6.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME;
ifra6.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME;
res = ID0ioctl(s, SIOCAIFADDR_IN6, &ifra6);
break;
#endif
}
if (res == -1) {
char dst[40];
const char *end =
#ifndef NOINET6
ncprange_family(&addr->ifa) == AF_INET6 ? "_IN6" :
#endif
"";
if (ncpaddr_family(&addr->peer) == AF_UNSPEC)
log_Printf(LogWARN, "iface add: ioctl(SIOCAIFADDR%s, %s): %s\n",
end, ncprange_ntoa(&addr->ifa), strerror(errno));
else {
snprintf(dst, sizeof dst, "%s", ncpaddr_ntoa(&addr->peer));
log_Printf(LogWARN, "iface add: ioctl(SIOCAIFADDR%s, %s -> %s): %s\n",
end, ncprange_ntoa(&addr->ifa), dst, strerror(errno));
}
}
return res != -1;
}