void
route_Add(struct sticky_route **rp, int type, const struct ncprange *dst,
const struct ncpaddr *gw)
{
struct sticky_route *r;
int dsttype = type & ROUTE_DSTANY;
r = NULL;
while (*rp) {
if ((dsttype && dsttype == ((*rp)->type & ROUTE_DSTANY)) ||
(!dsttype && ncprange_equal(&(*rp)->dst, dst))) {
/* Oops, we already have this route - unlink it */
free(r); /* impossible really */
r = *rp;
*rp = r->next;
} else
rp = &(*rp)->next;
}
if (!r)
r = (struct sticky_route *)malloc(sizeof(struct sticky_route));
r->type = type;
r->next = NULL;
ncprange_copy(&r->dst, dst);
ncpaddr_copy(&r->gw, gw);
*rp = r;
}
int
iface_Add(struct iface *iface, struct ncp *ncp, const struct ncprange *ifa,
const struct ncpaddr *peer, int how)
{
int af, removed, s;
unsigned n;
struct ncpaddr ncplocal;
struct iface_addr *addr, newaddr;
af = ncprange_family(ifa);
if ((s = ID0socket(af, SOCK_DGRAM, 0)) == -1) {
log_Printf(LogERROR, "iface_Add: socket(): %s\n", strerror(errno));
return 0;
}
ncprange_getaddr(ifa, &ncplocal);
for (n = 0; n < iface->addrs; n++) {
if (ncprange_contains(&iface->addr[n].ifa, &ncplocal) ||
ncpaddr_equal(&iface->addr[n].peer, peer)) {
/* Replace this sockaddr */
if (!(how & IFACE_FORCE_ADD)) {
close(s);
return 0; /* errno = EEXIST; */
}
if (ncprange_equal(&iface->addr[n].ifa, ifa) &&
ncpaddr_equal(&iface->addr[n].peer, peer)) {
close(s);
ncp_IfaceAddrAdded(ncp, iface->addr + n);
return 1; /* Already there */
}
removed = iface_addr_Zap(iface->name, iface->addr + n, s);
if (removed)
ncp_IfaceAddrDeleted(ncp, iface->addr + n);
ncprange_copy(&iface->addr[n].ifa, ifa);
ncpaddr_copy(&iface->addr[n].peer, peer);
if (!iface_addr_Add(iface->name, iface->addr + n, s)) {
if (removed) {
bcopy(iface->addr + n + 1, iface->addr + n,
(iface->addrs - n - 1) * sizeof *iface->addr);
iface->addrs--;
n--;
}
close(s);
return 0;
}
close(s);
ncp_IfaceAddrAdded(ncp, iface->addr + n);
return 1;
}
}
addr = (struct iface_addr *)realloc
(iface->addr, (iface->addrs + 1) * sizeof iface->addr[0]);
if (addr == NULL) {
log_Printf(LogERROR, "iface_inAdd: realloc: %s\n", strerror(errno));
close(s);
return 0;
}
iface->addr = addr;
ncprange_copy(&newaddr.ifa, ifa);
ncpaddr_copy(&newaddr.peer, peer);
newaddr.system = !!(how & IFACE_SYSTEM);
if (!iface_addr_Add(iface->name, &newaddr, s)) {
close(s);
return 0;
}
if (how & IFACE_ADD_FIRST) {
/* Stuff it at the start of our list */
n = 0;
bcopy(iface->addr, iface->addr + 1, iface->addrs * sizeof *iface->addr);
} else
n = iface->addrs;
iface->addrs++;
memcpy(iface->addr + n, &newaddr, sizeof(*iface->addr));
close(s);
ncp_IfaceAddrAdded(ncp, iface->addr + n);
return 1;
}