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 */ }
/* * rad_continue_send_request() has given us `got' (non-zero). Deal with it. */ static void radius_Process(struct radius *r, int got) { char *argv[MAXARGS], *nuke; struct bundle *bundle; int argc, addrs, res, width; size_t len; struct ncprange dest; struct ncpaddr gw; const void *data; const char *stype; u_int32_t ipaddr, vendor; struct in_addr ip; #ifndef NOINET6 uint8_t ipv6addr[INET6_ADDRSTRLEN]; struct in6_addr ip6; #endif r->cx.fd = -1; /* Stop select()ing */ stype = r->cx.auth ? "auth" : "acct"; switch (got) { case RAD_ACCESS_ACCEPT: log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, "Radius(%s): ACCEPT received\n", stype); if (!r->cx.auth) { rad_close(r->cx.rad); return; } break; case RAD_ACCESS_REJECT: log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, "Radius(%s): REJECT received\n", stype); if (!r->cx.auth) { rad_close(r->cx.rad); return; } break; case RAD_ACCESS_CHALLENGE: /* we can't deal with this (for now) ! */ log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, "Radius: CHALLENGE received (can't handle yet)\n"); if (r->cx.auth) auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; case RAD_ACCOUNTING_RESPONSE: /* * It's probably not ideal to log this at PHASE level as we'll see * too much stuff going to the log when ``set rad_alive'' is used. * So we differ from older behaviour (ppp version 3.1 and before) * and just log accounting responses to LogRADIUS. */ log_Printf(LogRADIUS, "Radius(%s): Accounting response received\n", stype); if (r->cx.auth) auth_Failure(r->cx.auth); /* unexpected !!! */ /* No further processing for accounting requests, please */ rad_close(r->cx.rad); return; case -1: log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, "radius(%s): %s\n", stype, rad_strerror(r->cx.rad)); if (r->cx.auth) auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; default: log_Printf(LogERROR, "rad_send_request(%s): Failed %d: %s\n", stype, got, rad_strerror(r->cx.rad)); if (r->cx.auth) auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } /* Let's see what we've got in our reply */ r->ip.s_addr = r->mask.s_addr = INADDR_NONE; r->mtu = 0; r->vj = 0; while ((res = rad_get_attr(r->cx.rad, &data, &len)) > 0) { switch (res) { case RAD_FRAMED_IP_ADDRESS: r->ip = rad_cvt_addr(data); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " IP %s\n", inet_ntoa(r->ip)); break; case RAD_FILTER_ID: free(r->filterid); if ((r->filterid = rad_cvt_string(data, len)) == NULL) { log_Printf(LogERROR, "rad_cvt_string: %s\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " Filter \"%s\"\n", r->filterid); break; case RAD_SESSION_TIMEOUT: r->sessiontime = rad_cvt_int(data); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " Session-Timeout %lu\n", r->sessiontime); break; case RAD_FRAMED_IP_NETMASK: r->mask = rad_cvt_addr(data); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " Netmask %s\n", inet_ntoa(r->mask)); break; case RAD_FRAMED_MTU: r->mtu = rad_cvt_int(data); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " MTU %lu\n", r->mtu); break; case RAD_FRAMED_ROUTING: /* Disabled for now - should we automatically set up some filters ? */ /* rad_cvt_int(data); */ /* bit 1 = Send routing packets */ /* bit 2 = Receive routing packets */ break; case RAD_FRAMED_COMPRESSION: r->vj = rad_cvt_int(data) == 1 ? 1 : 0; log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " VJ %sabled\n", r->vj ? "en" : "dis"); break; case RAD_FRAMED_ROUTE: /* * We expect a string of the format ``dest[/bits] gw [metrics]'' * Any specified metrics are ignored. MYADDR and HISADDR are * understood for ``dest'' and ``gw'' and ``0.0.0.0'' is the same * as ``HISADDR''. */ if ((nuke = rad_cvt_string(data, len)) == NULL) { log_Printf(LogERROR, "rad_cvt_string: %s\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " Route: %s\n", nuke); bundle = r->cx.auth->physical->dl->bundle; ip.s_addr = INADDR_ANY; ncpaddr_setip4(&gw, ip); ncprange_setip4host(&dest, ip); argc = command_Interpret(nuke, strlen(nuke), argv); if (argc < 0) log_Printf(LogWARN, "radius: %s: Syntax error\n", argc == 1 ? argv[0] : "\"\""); else if (argc < 2) log_Printf(LogWARN, "radius: %s: Invalid route\n", argc == 1 ? argv[0] : "\"\""); else if ((strcasecmp(argv[0], "default") != 0 && !ncprange_aton(&dest, &bundle->ncp, argv[0])) || !ncpaddr_aton(&gw, &bundle->ncp, argv[1])) log_Printf(LogWARN, "radius: %s %s: Invalid route\n", argv[0], argv[1]); else { ncprange_getwidth(&dest, &width); if (width == 32 && strchr(argv[0], '/') == NULL) { /* No mask specified - use the natural mask */ ncprange_getip4addr(&dest, &ip); ncprange_setip4mask(&dest, addr2mask(ip)); } addrs = 0; if (!strncasecmp(argv[0], "HISADDR", 7)) addrs = ROUTE_DSTHISADDR; else if (!strncasecmp(argv[0], "MYADDR", 6)) addrs = ROUTE_DSTMYADDR; if (ncpaddr_getip4addr(&gw, &ipaddr) && ipaddr == INADDR_ANY) { addrs |= ROUTE_GWHISADDR; ncpaddr_setip4(&gw, bundle->ncp.ipcp.peer_ip); } else if (strcasecmp(argv[1], "HISADDR") == 0) addrs |= ROUTE_GWHISADDR; route_Add(&r->routes, addrs, &dest, &gw); } free(nuke); break; case RAD_REPLY_MESSAGE: free(r->repstr); if ((r->repstr = rad_cvt_string(data, len)) == NULL) { log_Printf(LogERROR, "rad_cvt_string: %s\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " Reply-Message \"%s\"\n", r->repstr); break; #ifndef NOINET6 case RAD_FRAMED_IPV6_PREFIX: free(r->ipv6prefix); if ((r->ipv6prefix = rad_cvt_ipv6prefix(data, len)) == NULL) { log_Printf(LogERROR, "rad_cvt_ipv6prefix: %s\n", "Malformed attribute in response"); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } inet_ntop(AF_INET6, &r->ipv6prefix[2], ipv6addr, sizeof(ipv6addr)); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " IPv6 %s/%d\n", ipv6addr, r->ipv6prefix[1]); break; case RAD_FRAMED_IPV6_ROUTE: /* * We expect a string of the format ``dest[/bits] gw [metrics]'' * Any specified metrics are ignored. MYADDR6 and HISADDR6 are * understood for ``dest'' and ``gw'' and ``::'' is the same * as ``HISADDR6''. */ if ((nuke = rad_cvt_string(data, len)) == NULL) { log_Printf(LogERROR, "rad_cvt_string: %s\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " IPv6 Route: %s\n", nuke); bundle = r->cx.auth->physical->dl->bundle; ncpaddr_setip6(&gw, &in6addr_any); ncprange_set(&dest, &gw, 0); argc = command_Interpret(nuke, strlen(nuke), argv); if (argc < 0) log_Printf(LogWARN, "radius: %s: Syntax error\n", argc == 1 ? argv[0] : "\"\""); else if (argc < 2) log_Printf(LogWARN, "radius: %s: Invalid route\n", argc == 1 ? argv[0] : "\"\""); else if ((strcasecmp(argv[0], "default") != 0 && !ncprange_aton(&dest, &bundle->ncp, argv[0])) || !ncpaddr_aton(&gw, &bundle->ncp, argv[1])) log_Printf(LogWARN, "radius: %s %s: Invalid route\n", argv[0], argv[1]); else { addrs = 0; if (!strncasecmp(argv[0], "HISADDR6", 8)) addrs = ROUTE_DSTHISADDR6; else if (!strncasecmp(argv[0], "MYADDR6", 7)) addrs = ROUTE_DSTMYADDR6; if (ncpaddr_getip6(&gw, &ip6) && IN6_IS_ADDR_UNSPECIFIED(&ip6)) { addrs |= ROUTE_GWHISADDR6; ncpaddr_copy(&gw, &bundle->ncp.ipv6cp.hisaddr); } else if (strcasecmp(argv[1], "HISADDR6") == 0) addrs |= ROUTE_GWHISADDR6; route_Add(&r->ipv6routes, addrs, &dest, &gw); } free(nuke); break; #endif case RAD_VENDOR_SPECIFIC: if ((res = rad_get_vendor_attr(&vendor, &data, &len)) <= 0) { log_Printf(LogERROR, "rad_get_vendor_attr: %s (failing!)\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } switch (vendor) { case RAD_VENDOR_MICROSOFT: switch (res) { #ifndef NODES case RAD_MICROSOFT_MS_CHAP_ERROR: free(r->errstr); if (len == 0) r->errstr = NULL; else { if (len < 3 || ((const char *)data)[1] != '=') { /* * Only point at the String field if we don't think the * peer has misformatted the response. */ data = (const char *)data + 1; len--; } else log_Printf(LogWARN, "Warning: The MS-CHAP-Error " "attribute is mis-formatted. Compensating\n"); if ((r->errstr = rad_cvt_string((const char *)data, len)) == NULL) { log_Printf(LogERROR, "rad_cvt_string: %s\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " MS-CHAP-Error \"%s\"\n", r->errstr); } break; case RAD_MICROSOFT_MS_CHAP2_SUCCESS: free(r->msrepstr); if (len == 0) r->msrepstr = NULL; else { if (len < 3 || ((const char *)data)[1] != '=') { /* * Only point at the String field if we don't think the * peer has misformatted the response. */ data = (const char *)data + 1; len--; } else log_Printf(LogWARN, "Warning: The MS-CHAP2-Success " "attribute is mis-formatted. Compensating\n"); if ((r->msrepstr = rad_cvt_string((const char *)data, len)) == NULL) { log_Printf(LogERROR, "rad_cvt_string: %s\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); rad_close(r->cx.rad); return; } log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " MS-CHAP2-Success \"%s\"\n", r->msrepstr); } break; case RAD_MICROSOFT_MS_MPPE_ENCRYPTION_POLICY: r->mppe.policy = rad_cvt_int(data); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " MS-MPPE-Encryption-Policy %s\n", radius_policyname(r->mppe.policy)); break; case RAD_MICROSOFT_MS_MPPE_ENCRYPTION_TYPES: r->mppe.types = rad_cvt_int(data); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " MS-MPPE-Encryption-Types %s\n", radius_typesname(r->mppe.types)); break; case RAD_MICROSOFT_MS_MPPE_RECV_KEY: free(r->mppe.recvkey); demangle(r, data, len, &r->mppe.recvkey, &r->mppe.recvkeylen); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " MS-MPPE-Recv-Key ********\n"); break; case RAD_MICROSOFT_MS_MPPE_SEND_KEY: demangle(r, data, len, &r->mppe.sendkey, &r->mppe.sendkeylen); log_Printf(log_IsKept(LogRADIUS) ? LogRADIUS : LogPHASE, " MS-MPPE-Send-Key ********\n"); break; #endif default: log_Printf(LogDEBUG, "Dropping MICROSOFT vendor specific " "RADIUS attribute %d\n", res); break; } break; default: log_Printf(LogDEBUG, "Dropping vendor %lu RADIUS attribute %d\n", (unsigned long)vendor, res); break; } break; default: log_Printf(LogDEBUG, "Dropping RADIUS attribute %d\n", res); break; } } if (res == -1) { log_Printf(LogERROR, "rad_get_attr: %s (failing!)\n", rad_strerror(r->cx.rad)); auth_Failure(r->cx.auth); } else if (got == RAD_ACCESS_REJECT) auth_Failure(r->cx.auth); else { r->valid = 1; auth_Success(r->cx.auth); } rad_close(r->cx.rad); }