/* XXX - aliases on IRIX don't show up in SIOCGIFCONF */
static int
_intf_get_aliases(intf_t *intf, struct intf_entry *entry)
{
struct dnet_ifaliasreq ifra;
struct addr *ap, *lap;
strlcpy(ifra.ifra_name, entry->intf_name, sizeof(ifra.ifra_name));
addr_ntos(&entry->intf_addr, &ifra.ifra_addr);
addr_btos(entry->intf_addr.addr_bits, &ifra.ifra_mask);
memset(&ifra.ifra_brdaddr, 0, sizeof(ifra.ifra_brdaddr));
ifra.ifra_cookie = 1;
ap = entry->intf_alias_addrs;
lap = (struct addr *)((u_char *)entry + entry->intf_len);
while (ioctl(intf->fd, SIOCLIFADDR, &ifra) == 0 &&
ifra.ifra_cookie > 0 && (ap + 1) < lap) {
if (addr_ston(&ifra.ifra_addr, ap) < 0)
break;
ap++, entry->intf_alias_num++;
}
entry->intf_len = (u_char *)ap - (u_char *)entry;
return (0);
}
static int
_intf_add_aliases(intf_t *intf, const struct intf_entry *entry)
{
int i;
#ifdef SIOCAIFADDR
struct dnet_ifaliasreq ifra;
struct addr bcast;
memset(&ifra, 0, sizeof(ifra));
strlcpy(ifra.ifra_name, entry->intf_name, sizeof(ifra.ifra_name));
for (i = 0; i < (int)entry->intf_alias_num; i++) {
if (entry->intf_alias_addrs[i].addr_type != ADDR_TYPE_IP)
continue;
if (addr_ntos(&entry->intf_alias_addrs[i],
&ifra.ifra_addr) < 0)
return (-1);
addr_bcast(&entry->intf_alias_addrs[i], &bcast);
addr_ntos(&bcast, &ifra.ifra_brdaddr);
addr_btos(entry->intf_alias_addrs[i].addr_bits,
&ifra.ifra_mask);
if (ioctl(intf->fd, SIOCAIFADDR, &ifra) < 0)
return (-1);
}
#else
struct ifreq ifr;
int n = 1;
for (i = 0; i < entry->intf_alias_num; i++) {
if (entry->intf_alias_addrs[i].addr_type != ADDR_TYPE_IP)
continue;
snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s:%d",
entry->intf_name, n++);
# ifdef SIOCLIFADDIF
if (ioctl(intf->fd, SIOCLIFADDIF, &ifr) < 0)
return (-1);
# endif
if (addr_ntos(&entry->intf_alias_addrs[i], &ifr.ifr_addr) < 0)
return (-1);
if (ioctl(intf->fd, SIOCSIFADDR, &ifr) < 0)
return (-1);
}
strlcpy(ifr.ifr_name, entry->intf_name, sizeof(ifr.ifr_name));
#endif
return (0);
}
int
route_delete(route_t *r, const struct route_entry *entry)
{
struct rtentry rt;
struct addr dst;
memset(&rt, 0, sizeof(rt));
rt.rt_flags = RTF_UP;
if (ADDR_ISHOST(&entry->route_dst)) {
rt.rt_flags |= RTF_HOST;
memcpy(&dst, &entry->route_dst, sizeof(dst));
} else
addr_net(&entry->route_dst, &dst);
if (addr_ntos(&dst, &rt.rt_dst) < 0 ||
addr_btos(entry->route_dst.addr_bits, &rt.rt_genmask) < 0)
return (-1);
return (ioctl(r->fd, SIOCDELRT, &rt));
}
int
intf_set(intf_t *intf, const struct intf_entry *entry)
{
struct ifreq ifr;
struct intf_entry *orig;
struct addr bcast;
u_char buf[BUFSIZ];
orig = (struct intf_entry *)buf;
orig->intf_len = sizeof(buf);
strcpy(orig->intf_name, entry->intf_name);
if (intf_get(intf, orig) < 0)
return (-1);
/* Delete any existing aliases. */
if (_intf_delete_aliases(intf, orig) < 0)
return (-1);
/* Delete any existing addrs. */
if (_intf_delete_addrs(intf, orig) < 0)
return (-1);
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, entry->intf_name, sizeof(ifr.ifr_name));
/* Set interface MTU. */
if (entry->intf_mtu != 0) {
ifr.ifr_mtu = entry->intf_mtu;
#ifdef SIOCSIFMTU
if (ioctl(intf->fd, SIOCSIFMTU, &ifr) < 0)
#endif
return (-1);
}
/* Set interface address. */
if (entry->intf_addr.addr_type == ADDR_TYPE_IP) {
#ifdef BSD
/* XXX - why must this happen before SIOCSIFADDR? */
if (addr_btos(entry->intf_addr.addr_bits,
&ifr.ifr_addr) == 0) {
if (ioctl(intf->fd, SIOCSIFNETMASK, &ifr) < 0)
return (-1);
}
#endif
if (addr_ntos(&entry->intf_addr, &ifr.ifr_addr) < 0)
return (-1);
if (ioctl(intf->fd, SIOCSIFADDR, &ifr) < 0 && errno != EEXIST)
return (-1);
if (addr_btos(entry->intf_addr.addr_bits, &ifr.ifr_addr) == 0
#ifdef __linux__
&& entry->intf_addr.addr_ip != 0
#endif
) {
if (ioctl(intf->fd, SIOCSIFNETMASK, &ifr) < 0)
return (-1);
}
if (addr_bcast(&entry->intf_addr, &bcast) == 0) {
if (addr_ntos(&bcast, &ifr.ifr_broadaddr) == 0) {
/* XXX - ignore error from non-broadcast ifs */
ioctl(intf->fd, SIOCSIFBRDADDR, &ifr);
}
}
}
/* Set link-level address. */
if (entry->intf_link_addr.addr_type == ADDR_TYPE_ETH &&
addr_cmp(&entry->intf_link_addr, &orig->intf_link_addr) != 0) {
#if defined(SIOCSIFHWADDR)
if (addr_ntos(&entry->intf_link_addr, &ifr.ifr_hwaddr) < 0)
return (-1);
if (ioctl(intf->fd, SIOCSIFHWADDR, &ifr) < 0)
return (-1);
#elif defined (SIOCSIFLLADDR)
memcpy(ifr.ifr_addr.sa_data, &entry->intf_link_addr.addr_eth,
ETH_ADDR_LEN);
ifr.ifr_addr.sa_len = ETH_ADDR_LEN;
if (ioctl(intf->fd, SIOCSIFLLADDR, &ifr) < 0)
return (-1);
#else
eth_t *eth;
if ((eth = eth_open(entry->intf_name)) == NULL)
return (-1);
if (eth_set(eth, &entry->intf_link_addr.addr_eth) < 0) {
eth_close(eth);
return (-1);
}
eth_close(eth);
#endif
}
/* Set point-to-point destination. */
if (entry->intf_dst_addr.addr_type == ADDR_TYPE_IP) {
if (addr_ntos(&entry->intf_dst_addr, &ifr.ifr_dstaddr) < 0)
return (-1);
if (ioctl(intf->fd, SIOCSIFDSTADDR, &ifr) < 0 &&
errno != EEXIST)
return (-1);
}
/* Add aliases. */
if (_intf_add_aliases(intf, entry) < 0)
return (-1);
/* Set interface flags. */
if (ioctl(intf->fd, SIOCGIFFLAGS, &ifr) < 0)
return (-1);
ifr.ifr_flags = intf_flags_to_iff(entry->intf_flags, ifr.ifr_flags);
if (ioctl(intf->fd, SIOCSIFFLAGS, &ifr) < 0)
return (-1);
return (0);
}
static int
route_msg(route_t *r, int type, struct addr *dst, struct addr *gw)
{
struct addr net;
struct rt_msghdr *rtm;
struct sockaddr *sa;
u_char buf[BUFSIZ];
pid_t pid;
int len;
memset(buf, 0, sizeof(buf));
rtm = (struct rt_msghdr *)buf;
rtm->rtm_version = RTM_VERSION;
if ((rtm->rtm_type = type) != RTM_DELETE)
rtm->rtm_flags = RTF_UP;
rtm->rtm_addrs = RTA_DST;
rtm->rtm_seq = ++r->seq;
/* Destination */
sa = (struct sockaddr *)(rtm + 1);
if (addr_net(dst, &net) < 0 || addr_ntos(&net, sa) < 0)
return (-1);
sa = NEXTSA(sa);
/* Gateway */
if (gw != NULL && type != RTM_GET) {
rtm->rtm_flags |= RTF_GATEWAY;
rtm->rtm_addrs |= RTA_GATEWAY;
if (addr_ntos(gw, sa) < 0)
return (-1);
sa = NEXTSA(sa);
}
/* Netmask */
if (dst->addr_ip == IP_ADDR_ANY || dst->addr_bits < IP_ADDR_BITS) {
rtm->rtm_addrs |= RTA_NETMASK;
if (addr_btos(dst->addr_bits, sa) < 0)
return (-1);
sa = NEXTSA(sa);
} else
rtm->rtm_flags |= RTF_HOST;
rtm->rtm_msglen = (u_char *)sa - buf;
#ifdef DEBUG
route_msg_print(rtm);
#endif
#ifdef HAVE_STREAMS_ROUTE
if (ioctl(r->fd, RTSTR_SEND, rtm) < 0)
return (-1);
#else
if (write(r->fd, buf, rtm->rtm_msglen) < 0)
return (-1);
pid = getpid();
while (type == RTM_GET && (len = read(r->fd, buf, sizeof(buf))) > 0) {
if (len < (int)sizeof(*rtm)) {
return (-1);
}
if (rtm->rtm_type == type && rtm->rtm_pid == pid &&
rtm->rtm_seq == r->seq) {
if (rtm->rtm_errno) {
errno = rtm->rtm_errno;
return (-1);
}
break;
}
}
#endif
if (type == RTM_GET && (rtm->rtm_addrs & (RTA_DST|RTA_GATEWAY)) ==
(RTA_DST|RTA_GATEWAY)) {
sa = (struct sockaddr *)(rtm + 1);
sa = NEXTSA(sa);
if (addr_ston(sa, gw) < 0 || gw->addr_type != ADDR_TYPE_IP) {
errno = ESRCH;
return (-1);
}
}
return (0);
}