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;
}
int
rt_Set(struct bundle *bundle, int cmd, const struct ncprange *dst,
const struct ncpaddr *gw, int bang, int quiet)
{
struct rtmsg rtmes;
int s, nb, wb;
char *cp;
const char *cmdstr;
struct sockaddr_storage sadst, samask, sagw;
int result = 1;
if (bang)
cmdstr = (cmd == RTM_ADD ? "Add!" : "Delete!");
else
cmdstr = (cmd == RTM_ADD ? "Add" : "Delete");
s = ID0socket(PF_ROUTE, SOCK_RAW, 0);
if (s < 0) {
log_Printf(LogERROR, "rt_Set: socket(): %s\n", strerror(errno));
return result;
}
memset(&rtmes, '\0', sizeof rtmes);
rtmes.m_rtm.rtm_version = RTM_VERSION;
rtmes.m_rtm.rtm_type = cmd;
rtmes.m_rtm.rtm_addrs = RTA_DST;
rtmes.m_rtm.rtm_seq = ++bundle->routing_seq;
rtmes.m_rtm.rtm_pid = getpid();
rtmes.m_rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC;
if (cmd == RTM_ADD) {
if (bundle->ncp.cfg.sendpipe > 0) {
rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.cfg.sendpipe;
rtmes.m_rtm.rtm_inits |= RTV_SPIPE;
}
if (bundle->ncp.cfg.recvpipe > 0) {
rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.cfg.recvpipe;
rtmes.m_rtm.rtm_inits |= RTV_RPIPE;
}
}
ncprange_getsa(dst, &sadst, &samask);
#if defined(__KAME__) && !defined(NOINET6)
add_scope((struct sockaddr *)&sadst, bundle->iface->index);
#endif
cp = rtmes.m_space;
cp += memcpy_roundup(cp, &sadst, sadst.ss_len);
if (cmd == RTM_ADD) {
if (gw == NULL) {
log_Printf(LogERROR, "rt_Set: Program error\n");
close(s);
return result;
}
ncpaddr_getsa(gw, &sagw);
#if defined(__KAME__) && !defined(NOINET6)
add_scope((struct sockaddr *)&sagw, bundle->iface->index);
#endif
if (ncpaddr_isdefault(gw)) {
if (!quiet)
log_Printf(LogERROR, "rt_Set: Cannot add a route with"
" gateway 0.0.0.0\n");
close(s);
return result;
} else {
cp += memcpy_roundup(cp, &sagw, sagw.ss_len);
rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY;
}
}
if (!ncprange_ishost(dst)) {
cp += memcpy_roundup(cp, &samask, samask.ss_len);
rtmes.m_rtm.rtm_addrs |= RTA_NETMASK;
}
nb = cp - (char *)&rtmes;
rtmes.m_rtm.rtm_msglen = nb;
wb = ID0write(s, &rtmes, nb);
if (wb < 0) {
log_Printf(LogTCPIP, "rt_Set failure:\n");
log_Printf(LogTCPIP, "rt_Set: Cmd = %s\n", cmdstr);
log_Printf(LogTCPIP, "rt_Set: Dst = %s\n", ncprange_ntoa(dst));
if (gw != NULL)
log_Printf(LogTCPIP, "rt_Set: Gateway = %s\n", ncpaddr_ntoa(gw));
failed:
if (cmd == RTM_ADD && (rtmes.m_rtm.rtm_errno == EEXIST ||
(rtmes.m_rtm.rtm_errno == 0 && errno == EEXIST))) {
if (!bang) {
log_Printf(LogWARN, "Add route failed: %s already exists\n",
ncprange_ntoa(dst));
result = 0; /* Don't add to our dynamic list */
} else {
rtmes.m_rtm.rtm_type = cmd = RTM_CHANGE;
if ((wb = ID0write(s, &rtmes, nb)) < 0)
goto failed;
}
} else if (cmd == RTM_DELETE &&
(rtmes.m_rtm.rtm_errno == ESRCH ||
(rtmes.m_rtm.rtm_errno == 0 && errno == ESRCH))) {
if (!bang)
log_Printf(LogWARN, "Del route failed: %s: Non-existent\n",
ncprange_ntoa(dst));
} else if (rtmes.m_rtm.rtm_errno == 0) {
if (!quiet || errno != ENETUNREACH)
log_Printf(LogWARN, "%s route failed: %s: errno: %s\n", cmdstr,
ncprange_ntoa(dst), strerror(errno));
} else
log_Printf(LogWARN, "%s route failed: %s: %s\n",
cmdstr, ncprange_ntoa(dst), strerror(rtmes.m_rtm.rtm_errno));
}
if (log_IsKept(LogDEBUG)) {
char gwstr[40];
if (gw)
snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(gw));
else
snprintf(gwstr, sizeof gwstr, "<none>");
log_Printf(LogDEBUG, "wrote %d: cmd = %s, dst = %s, gateway = %s\n",
wb, cmdstr, ncprange_ntoa(dst), gwstr);
}
close(s);
return result;
}
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 */
}
