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
iface_Clear(struct iface *iface, struct ncp *ncp, int family, int how)
{
int addrs, af, inskip, in6skip, s4 = -1, s6 = -1, *s;
unsigned n;
if (iface->addrs) {
inskip = in6skip = how == IFACE_CLEAR_ALL ? 0 : 1;
addrs = 0;
for (n = 0; n < iface->addrs; n++) {
af = ncprange_family(&iface->addr[n].ifa);
if (family == 0 || family == af) {
if (!iface->addr[n].system && (how & IFACE_SYSTEM))
continue;
switch (af) {
case AF_INET:
if (inskip) {
inskip = 0;
continue;
}
s = &s4;
break;
#ifndef NOINET6
case AF_INET6:
if (in6skip) {
in6skip = 0;
continue;
}
s = &s6;
break;
#endif
default:
continue;
}
if (*s == -1 && (*s = ID0socket(af, SOCK_DGRAM, 0)) == -1)
log_Printf(LogERROR, "iface_Clear: socket(): %s\n", strerror(errno));
else 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--;
n--;
}
}
}
/* Don't bother realloc()ing - we have little to gain */
if (s4)
close(s4);
if (s6)
close(s6);
}
}
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;
}
