44 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
50 #if 0 /* UNUSED */
60 #if CHAP_SUPPORT
78 #if 0 /* UNUSED */
83 #if 0 /* UNUSED */
89 #if 0 /* UNUSED */
90 #if PPP_LCP_ADAPTIVE
91 bool	lcp_echo_adaptive = 0;	/* request echo only if the link was idle */
97 #if PPP_OPTIONS
107 #if PPP_OPTIONS
175 #if PPP_LCP_ADAPTIVE
177       "Suppress LCP echo requests if traffic was received", 1 },
270 #if PRINTPKT_SUPPORT
284 #if PRINTPKT_SUPPORT
287 #if PPP_DATAINPUT
290 #if PRINTPKT_SUPPORT
294 #if PPP_OPTIONS
298 #if DEMAND_SUPPORT
310 #if CHAP_SUPPORT
314 #if LQR_SUPPORT
322 #if PPP_OPTIONS
342     if (str_to_epdisc(&lcp_wantoptions[0].endpoint, *argv)) {
386 #if CHAP_SUPPORT  in lcp_init()
390 #if PAP_SUPPORT  in lcp_init()
393 #if EAP_SUPPORT  in lcp_init()
411     if (wo->passive)  in lcp_open()
413     if (wo->silent)  in lcp_open()
426     if (pcb->phase != PPP_PHASE_DEAD  in lcp_close()
433     if (f->flags & DELAYED_UP) {  in lcp_close()
440     if (oldstate == PPP_FSM_STOPPED && (f->flags & (OPT_PASSIVE|OPT_SILENT|DELAYED_UP))) {  in lcp_close()
443 	 * but it does mean that the program terminates if you do a  in lcp_close()
463      * if we are going to ask for A/C and protocol compression.  in lcp_lowerup()
465     if (ppp_send_config(pcb, PPP_MRU, 0xffffffff, 0, 0) < 0  in lcp_lowerup()
471     if (pcb->settings.listen_time != 0) {  in lcp_lowerup()
485     if (f->flags & DELAYED_UP) {  in lcp_lowerdown()
499     if (f->flags & DELAYED_UP) {  in lcp_delayed_up()
512     if (f->flags & DELAYED_UP) {  in lcp_input()
534 	if (f->state != PPP_FSM_OPENED)  in lcp_extcode()
566 #if PPP_PROTOCOLNAME  in lcp_rprotrej()
570     if (len < 2) {  in lcp_rprotrej()
581     if( f->state != PPP_FSM_OPENED ){  in lcp_rprotrej()
586 #if PPP_PROTOCOLNAME  in lcp_rprotrej()
594 	if (protp->protocol == prot) {  in lcp_rprotrej()
595 #if PPP_PROTOCOLNAME  in lcp_rprotrej()
596 	    if (pname != NULL)  in lcp_rprotrej()
606 #if PPP_PROTOCOLNAME  in lcp_rprotrej()
607     if (pname != NULL)  in lcp_rprotrej()
611 #endif /* #if PPP_PROTOCOLNAME */  in lcp_rprotrej()
636      * rejected packet.  We only get here if LCP is in the OPENED state.  in lcp_sprotrej()
638 #if 0  in lcp_sprotrej()
657 #if PPP_AUTH_SUPPORT  in lcp_resetci()
660     if (pcb->settings.user && pcb->settings.passwd) {  in lcp_resetci()
661 #if PAP_SUPPORT  in lcp_resetci()
662       if (pcb->settings.refuse_pap) {  in lcp_resetci()
666 #if CHAP_SUPPORT  in lcp_resetci()
667       if (pcb->settings.refuse_chap) {  in lcp_resetci()
670 #if MSCHAP_SUPPORT  in lcp_resetci()
671       if (pcb->settings.refuse_mschap) {  in lcp_resetci()
674       if (pcb->settings.refuse_mschap_v2) {  in lcp_resetci()
680 #if EAP_SUPPORT  in lcp_resetci()
681       if (pcb->settings.refuse_eap) {  in lcp_resetci()
686 #if PPP_SERVER  in lcp_resetci()
688       if (pcb->settings.auth_required) {  in lcp_resetci()
689 #if PAP_SUPPORT  in lcp_resetci()
690         if (!pcb->settings.refuse_pap) {  in lcp_resetci()
694 #if CHAP_SUPPORT  in lcp_resetci()
695         if (!pcb->settings.refuse_chap) {  in lcp_resetci()
698 #if MSCHAP_SUPPORT  in lcp_resetci()
699         if (!pcb->settings.refuse_mschap) {  in lcp_resetci()
702         if (!pcb->settings.refuse_mschap_v2) {  in lcp_resetci()
708 #if EAP_SUPPORT  in lcp_resetci()
709         if (!pcb->settings.refuse_eap) {  in lcp_resetci()
717 #if PAP_SUPPORT  in lcp_resetci()
720 #if CHAP_SUPPORT  in lcp_resetci()
724 #if EAP_SUPPORT  in lcp_resetci()
730 #if PAP_SUPPORT  in lcp_resetci()
733 #if CHAP_SUPPORT  in lcp_resetci()
735 #if MSCHAP_SUPPORT  in lcp_resetci()
739 #if EAP_SUPPORT  in lcp_resetci()
750     if (!multilink) {  in lcp_resetci()
758     if (pcb->settings.noendpoint)  in lcp_resetci()
761 #if 0 /* UNUSED */  in lcp_resetci()
775 #if CHAP_SUPPORT  in lcp_cilen()
780 #if LQR_SUPPORT  in lcp_cilen()
785      * NB: we only ask for one of CHAP, UPAP, or EAP, even if we will  in lcp_cilen()
791 #if EAP_SUPPORT  in lcp_cilen()
794 #if CHAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portabl…  in lcp_cilen()
795 #if EAP_SUPPORT  in lcp_cilen()
798 #if !EAP_SUPPORT  in lcp_cilen()
802 #if PAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable…  in lcp_cilen()
803 #if EAP_SUPPORT && CHAP_SUPPORT  in lcp_cilen()
806 #if EAP_SUPPORT && !CHAP_SUPPORT  in lcp_cilen()
809 #if !EAP_SUPPORT && CHAP_SUPPORT  in lcp_cilen()
812 #if !EAP_SUPPORT && !CHAP_SUPPORT  in lcp_cilen()
816 #if LQR_SUPPORT  in lcp_cilen()
840     if (neg) { \  in lcp_addci()
845     if (neg) { \  in lcp_addci()
850 #if CHAP_SUPPORT  in lcp_addci()
852     if (neg) { \  in lcp_addci()
860     if (neg) { \  in lcp_addci()
865 #if LQR_SUPPORT  in lcp_addci()
867     if (neg) { \  in lcp_addci()
875     if (neg) { \  in lcp_addci()
881     if (neg) { \  in lcp_addci()
893 #if EAP_SUPPORT  in lcp_addci()
896 #if CHAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portabl…  in lcp_addci()
897 #if EAP_SUPPORT  in lcp_addci()
900 #if !EAP_SUPPORT  in lcp_addci()
904 #if PAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable…  in lcp_addci()
905 #if EAP_SUPPORT && CHAP_SUPPORT  in lcp_addci()
908 #if EAP_SUPPORT && !CHAP_SUPPORT  in lcp_addci()
911 #if !EAP_SUPPORT && CHAP_SUPPORT  in lcp_addci()
914 #if !EAP_SUPPORT && !CHAP_SUPPORT  in lcp_addci()
918 #if LQR_SUPPORT  in lcp_addci()
932     if (ucp - start_ucp != *lenp) {  in lcp_addci()
941  * This should not modify any state if the Ack is bad.
957      * If we find any deviations, then this packet is bad.  in lcp_ackci()
960     if (neg) { \  in lcp_ackci()
961 	if ((len -= CILEN_VOID) < 0) \  in lcp_ackci()
965 	if (cilen != CILEN_VOID || \  in lcp_ackci()
970     if (neg) { \  in lcp_ackci()
971 	if ((len -= CILEN_SHORT) < 0) \  in lcp_ackci()
975 	if (cilen != CILEN_SHORT || \  in lcp_ackci()
979 	if (cishort != val) \  in lcp_ackci()
983     if (neg) { \  in lcp_ackci()
984 	if ((len -= CILEN_CHAR) < 0) \  in lcp_ackci()
988 	if (cilen != CILEN_CHAR || \  in lcp_ackci()
992 	if (cichar != val) \  in lcp_ackci()
995 #if CHAP_SUPPORT  in lcp_ackci()
997     if (neg) { \  in lcp_ackci()
998 	if ((len -= CILEN_CHAP) < 0) \  in lcp_ackci()
1002 	if (cilen != CILEN_CHAP || \  in lcp_ackci()
1006 	if (cishort != PPP_CHAP) \  in lcp_ackci()
1009 	if (cichar != (CHAP_DIGEST(val))) \  in lcp_ackci()
1014     if (neg) { \  in lcp_ackci()
1015 	if ((len -= CILEN_LONG) < 0) \  in lcp_ackci()
1019 	if (cilen != CILEN_LONG || \  in lcp_ackci()
1023 	if (cilong != val) \  in lcp_ackci()
1026 #if LQR_SUPPORT  in lcp_ackci()
1028     if (neg) { \  in lcp_ackci()
1029 	if ((len -= CILEN_LQR) < 0) \  in lcp_ackci()
1033 	if (cilen != CILEN_LQR || \  in lcp_ackci()
1037 	if (cishort != PPP_LQR) \  in lcp_ackci()
1040 	if (cilong != val) \  in lcp_ackci()
1045     if (neg) { \  in lcp_ackci()
1047 	if ((len -= CILEN_CHAR + vlen) < 0) \  in lcp_ackci()
1051 	if (cilen != CILEN_CHAR + vlen || \  in lcp_ackci()
1055 	if (cichar != class) \  in lcp_ackci()
1059 	    if (cichar != val[i]) \  in lcp_ackci()
1067 #if EAP_SUPPORT  in lcp_ackci()
1070 #if CHAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portabl…  in lcp_ackci()
1071 #if EAP_SUPPORT  in lcp_ackci()
1074 #if !EAP_SUPPORT  in lcp_ackci()
1078 #if PAP_SUPPORT /* cannot be improved, embedding a directive within macro arguments is not portable…  in lcp_ackci()
1079 #if EAP_SUPPORT && CHAP_SUPPORT  in lcp_ackci()
1082 #if EAP_SUPPORT && !CHAP_SUPPORT  in lcp_ackci()
1085 #if !EAP_SUPPORT && CHAP_SUPPORT  in lcp_ackci()
1088 #if !EAP_SUPPORT && !CHAP_SUPPORT  in lcp_ackci()
1092 #if LQR_SUPPORT  in lcp_ackci()
1107      * If there are any remaining CIs, then this packet is bad.  in lcp_ackci()
1109     if (len != 0)  in lcp_ackci()
1120  * This should not modify any state if the Nak is bad
1121  * or if LCP is in the OPENED state.
1145      * If we find any deviations, then this packet is bad.  in lcp_nakci()
1148     if (go->neg && \  in lcp_nakci()
1157 #if CHAP_SUPPORT  in lcp_nakci()
1159     if (go->neg && \  in lcp_nakci()
1172     if (go->neg && \  in lcp_nakci()
1183     if (go->neg && \  in lcp_nakci()
1194     if (go->neg && \  in lcp_nakci()
1204 #if LQR_SUPPORT  in lcp_nakci()
1206     if (go->neg && \  in lcp_nakci()
1219     if (go->neg && \  in lcp_nakci()
1235      * We don't care if they want to send us smaller packets than  in lcp_nakci()
1238      * If they send us a bigger MRU than what we asked, accept it, up to  in lcp_nakci()
1239      * the limit of the default MRU we'd get if we didn't negotiate.  in lcp_nakci()
1241     if (go->neg_mru && go->mru != PPP_DEFMRU) {  in lcp_nakci()
1243 		   if (cishort <= wo->mru || cishort <= PPP_DEFMRU)  in lcp_nakci()
1251     if (go->neg_asyncmap && go->asyncmap != 0xFFFFFFFF) {  in lcp_nakci()
1258      * If they've nak'd our authentication-protocol, check whether  in lcp_nakci()
1262     if ((0  in lcp_nakci()
1263 #if CHAP_SUPPORT  in lcp_nakci()
1266 #if PAP_SUPPORT  in lcp_nakci()
1269 #if EAP_SUPPORT  in lcp_nakci()
1277 #if CHAP_SUPPORT  in lcp_nakci()
1280 #if PAP_SUPPORT  in lcp_nakci()
1283 #if EAP_SUPPORT  in lcp_nakci()
1289 #if PAP_SUPPORT  in lcp_nakci()
1290 	if (cishort == PPP_PAP && cilen == CILEN_SHORT) {  in lcp_nakci()
1291 #if EAP_SUPPORT  in lcp_nakci()
1292 	    /* If we were asking for EAP, then we need to stop that. */  in lcp_nakci()
1293 	    if (go->neg_eap)  in lcp_nakci()
1298 #if CHAP_SUPPORT  in lcp_nakci()
1299 	    /* If we were asking for CHAP, then we need to stop that. */  in lcp_nakci()
1300 	    if (go->neg_chap)  in lcp_nakci()
1306 	     * If we weren't asking for CHAP or EAP, then we were asking for  in lcp_nakci()
1313 #if CHAP_SUPPORT  in lcp_nakci()
1314 	if (cishort == PPP_CHAP && cilen == CILEN_CHAP) {  in lcp_nakci()
1316 #if EAP_SUPPORT  in lcp_nakci()
1317 	    /* Stop asking for EAP, if we were. */  in lcp_nakci()
1318 	    if (go->neg_eap) {  in lcp_nakci()
1320 		/* Try to set up to use their suggestion, if possible */  in lcp_nakci()
1321 		if (CHAP_CANDIGEST(go->chap_mdtype, cichar))  in lcp_nakci()
1325 	    if (go->neg_chap) {  in lcp_nakci()
1330 		if (cichar != CHAP_DIGEST(go->chap_mdtype)) {  in lcp_nakci()
1331 		    if (CHAP_CANDIGEST(go->chap_mdtype, cichar)) {  in lcp_nakci()
1332 			/* Use their suggestion if we support it ... */  in lcp_nakci()
1337 			if (try_.chap_mdtype == MDTYPE_NONE) /* out of algos */  in lcp_nakci()
1349 		 * Stop asking for PAP if we were asking for it.  in lcp_nakci()
1351 #if PAP_SUPPORT  in lcp_nakci()
1360 #if EAP_SUPPORT  in lcp_nakci()
1362 	     * If we were asking for EAP, and they're Conf-Naking EAP,  in lcp_nakci()
1365 	    if (cishort == PPP_EAP && cilen == CILEN_SHORT && go->neg_eap)  in lcp_nakci()
1372 	    if (go->neg_eap)  in lcp_nakci()
1377 #if CHAP_SUPPORT  in lcp_nakci()
1378 	    if (go->neg_chap)  in lcp_nakci()
1383 #if PAP_SUPPORT  in lcp_nakci()
1384 	    if(1)  in lcp_nakci()
1394 #if LQR_SUPPORT  in lcp_nakci()
1396      * If they can't cope with our link quality protocol, we'll have  in lcp_nakci()
1398      * If they Nak the reporting period, take their value XXX ?  in lcp_nakci()
1401 	     if (cishort != PPP_LQR)  in lcp_nakci()
1413 …(void)cichar; /* if CHAP support is not compiled, cichar is set but not used, which makes some com…  in lcp_nakci()
1427      * a Reject instead.  If they send a Nak, treat it as a Reject.  in lcp_nakci()
1434      * Nak for MRRU option - accept their value if it is smaller  in lcp_nakci()
1437     if (go->neg_mrru) {  in lcp_nakci()
1439 		   if (treat_as_reject)  in lcp_nakci()
1441 		   else if (cishort <= wo->mrru)  in lcp_nakci()
1462      * There may be remaining CIs, if the peer is requesting negotiation  in lcp_nakci()
1464      * If we see an option that we requested, or one we've already seen  in lcp_nakci()
1466      * If we wanted to respond by starting to negotiate on the requested  in lcp_nakci()
1468      * authentication type and quality protocol, if we are not negotiating  in lcp_nakci()
1473      * reports', but if we didn't ask for them, we don't want them.  in lcp_nakci()
1480 	if (cilen < CILEN_VOID || (len -= cilen) < 0)  in lcp_nakci()
1486 	    if ((go->neg_mru && go->mru != PPP_DEFMRU)  in lcp_nakci()
1490 	    if (cishort < PPP_DEFMRU) {  in lcp_nakci()
1496 	    if ((go->neg_asyncmap && go->asyncmap != 0xFFFFFFFF)  in lcp_nakci()
1501 	    if (0  in lcp_nakci()
1502 #if CHAP_SUPPORT  in lcp_nakci()
1505 #if PAP_SUPPORT  in lcp_nakci()
1508 #if EAP_SUPPORT  in lcp_nakci()
1515 	    if (go->neg_magicnumber || no.neg_magicnumber ||  in lcp_nakci()
1520 	    if (go->neg_pcompression || no.neg_pcompression  in lcp_nakci()
1525 	    if (go->neg_accompression || no.neg_accompression  in lcp_nakci()
1529 #if LQR_SUPPORT  in lcp_nakci()
1531 	    if (go->neg_lqr || no.neg_lqr || cilen != CILEN_LQR)  in lcp_nakci()
1537 	    if (go->neg_mrru || no.neg_mrru || cilen != CILEN_SHORT)  in lcp_nakci()
1542 	    if (go->neg_ssnhf || no.neg_ssnhf || cilen != CILEN_VOID)  in lcp_nakci()
1547 	    if (go->neg_endpoint || no.neg_endpoint || cilen < CILEN_CHAR)  in lcp_nakci()
1558      * If there are any options left we ignore them.  in lcp_nakci()
1560     if (f->state != PPP_FSM_OPENED) {  in lcp_nakci()
1561 	if (looped_back) {  in lcp_nakci()
1562 	    if (++try_.numloops >= pcb->settings.lcp_loopbackfail) {  in lcp_nakci()
1582  * This should not modify any state if the Reject is bad
1583  * or if LCP is in the OPENED state.
1602      * If we find any deviations, then this packet is bad.  in lcp_rejci()
1605     if (go->neg && \  in lcp_rejci()
1614     if (go->neg && \  in lcp_rejci()
1622 	if (cishort != val) \  in lcp_rejci()
1627 #if CHAP_SUPPORT && EAP_SUPPORT && PAP_SUPPORT  in lcp_rejci()
1629     if (go->neg && \  in lcp_rejci()
1638 	if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \  in lcp_rejci()
1645 #if CHAP_SUPPORT && !EAP_SUPPORT && PAP_SUPPORT  in lcp_rejci()
1647     if (go->neg && \  in lcp_rejci()
1656 	if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \  in lcp_rejci()
1663 #if CHAP_SUPPORT && EAP_SUPPORT && !PAP_SUPPORT  in lcp_rejci()
1665     if (go->neg && \  in lcp_rejci()
1674 	if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \  in lcp_rejci()
1681 #if CHAP_SUPPORT && !EAP_SUPPORT && !PAP_SUPPORT  in lcp_rejci()
1683     if (go->neg && \  in lcp_rejci()
1692 	if ((cishort != PPP_CHAP) || (cichar != (CHAP_DIGEST(val)))) \  in lcp_rejci()
1699     if (go->neg && \  in lcp_rejci()
1707 	if (cilong != val) \  in lcp_rejci()
1711 #if LQR_SUPPORT  in lcp_rejci()
1713     if (go->neg && \  in lcp_rejci()
1722 	if (cishort != PPP_LQR || cilong != val) \  in lcp_rejci()
1728     if (go->neg && \  in lcp_rejci()
1736 	if (cichar != val) \  in lcp_rejci()
1741     if (go->neg && \  in lcp_rejci()
1749 	if (cichar != class) \  in lcp_rejci()
1753 	    if (cichar != val[i]) \  in lcp_rejci()
1761 #if EAP_SUPPORT  in lcp_rejci()
1763     if (!go->neg_eap) {  in lcp_rejci()
1765 #if CHAP_SUPPORT  in lcp_rejci()
1767 	if (!go->neg_chap) {  in lcp_rejci()
1769 #if PAP_SUPPORT  in lcp_rejci()
1772 #if CHAP_SUPPORT  in lcp_rejci()
1775 #if EAP_SUPPORT  in lcp_rejci()
1778 #if LQR_SUPPORT  in lcp_rejci()
1793      * If there are any remaining CIs, then this packet is bad.  in lcp_rejci()
1795     if (len != 0)  in lcp_rejci()
1800     if (f->state != PPP_FSM_OPENED)  in lcp_rejci()
1814  * appropriately.  If reject_if_disagree is non-zero, doesn't return
1815  * CONFNAK; returns CONFREJ if it can't return CONFACK.
1847     if(NULL == nakp)  in lcp_reqci()
1849     if(nakp->tot_len != nakp->len) {  in lcp_reqci()
1859 	if (l < 2 ||			/* Not enough data for CI header or */  in lcp_reqci()
1876 	    if (!ao->neg_mru ||		/* Allow option? */  in lcp_reqci()
1885 	     * No need to check a maximum.  If he sends a large number,  in lcp_reqci()
1888 	    if (cishort < PPP_MINMRU) {  in lcp_reqci()
1900 	    if (!ao->neg_asyncmap ||  in lcp_reqci()
1911 	    if ((ao->asyncmap & ~cilong) != 0) {  in lcp_reqci()
1923 	    if (cilen < CILEN_SHORT ||  in lcp_reqci()
1925 #if PAP_SUPPORT  in lcp_reqci()
1928 #if CHAP_SUPPORT  in lcp_reqci()
1931 #if EAP_SUPPORT  in lcp_reqci()
1936 		 * Reject the option if we're not willing to authenticate.  in lcp_reqci()
1947 	     * Note: if more than one of ao->neg_upap, ao->neg_chap, and  in lcp_reqci()
1955 #if PAP_SUPPORT  in lcp_reqci()
1956 	    if (cishort == PPP_PAP) {  in lcp_reqci()
1958 		if (0  in lcp_reqci()
1959 #if CHAP_SUPPORT  in lcp_reqci()
1962 #if EAP_SUPPORT  in lcp_reqci()
1970 		if (!ao->neg_upap) {	/* we don't want to do PAP */  in lcp_reqci()
1973 #if EAP_SUPPORT  in lcp_reqci()
1974 		    if (ao->neg_eap) {  in lcp_reqci()
1979 #if CHAP_SUPPORT  in lcp_reqci()
1984 #if EAP_SUPPORT  in lcp_reqci()
1993 #if CHAP_SUPPORT  in lcp_reqci()
1994 	    if (cishort == PPP_CHAP) {  in lcp_reqci()
1996 		if (  in lcp_reqci()
1997 #if PAP_SUPPORT  in lcp_reqci()
2000 #if EAP_SUPPORT  in lcp_reqci()
2008 		if (!ao->neg_chap) {	/* we don't want to do CHAP */  in lcp_reqci()
2012 #if EAP_SUPPORT  in lcp_reqci()
2013 		    if (ao->neg_eap) {  in lcp_reqci()
2017 #if PAP_SUPPORT  in lcp_reqci()
2018 		    if(1) {  in lcp_reqci()
2027 		if (!(CHAP_CANDIGEST(ao->chap_mdtype, cichar))) {  in lcp_reqci()
2044 #if EAP_SUPPORT  in lcp_reqci()
2045 	    if (cishort == PPP_EAP) {  in lcp_reqci()
2047 		if (  in lcp_reqci()
2048 #if CHAP_SUPPORT  in lcp_reqci()
2051 #if PAP_SUPPORT  in lcp_reqci()
2059 		if (!ao->neg_eap) {	/* we don't want to do EAP */  in lcp_reqci()
2062 #if CHAP_SUPPORT  in lcp_reqci()
2063 		    if (ao->neg_chap) {  in lcp_reqci()
2069 #if PAP_SUPPORT  in lcp_reqci()
2070 		    if(1) {  in lcp_reqci()
2092 #if EAP_SUPPORT  in lcp_reqci()
2093 	    if (ao->neg_eap) {  in lcp_reqci()
2098 #if CHAP_SUPPORT  in lcp_reqci()
2099 	    if (ao->neg_chap) {  in lcp_reqci()
2105 #if PAP_SUPPORT  in lcp_reqci()
2106 	    if(1) {  in lcp_reqci()
2114 #if LQR_SUPPORT  in lcp_reqci()
2116 	    if (!ao->neg_lqr ||  in lcp_reqci()
2129 	    if (cishort != PPP_LQR) {  in lcp_reqci()
2141 	    if (!(ao->neg_magicnumber || go->neg_magicnumber) ||  in lcp_reqci()
2151 	    if (go->neg_magicnumber &&  in lcp_reqci()
2166 	    if (!ao->neg_pcompression ||  in lcp_reqci()
2175 	    if (!ao->neg_accompression ||  in lcp_reqci()
2185 	    if (!ao->neg_mrru  in lcp_reqci()
2200 	    if (!ao->neg_ssnhf  in lcp_reqci()
2212 	    if (!ao->neg_endpoint ||  in lcp_reqci()
2234 	if (orc == CONFACK &&		/* Good CI */  in lcp_reqci()
2238 	if (orc == CONFNAK) {		/* Nak this CI? */  in lcp_reqci()
2239 	    if (reject_if_disagree	/* Getting fed up with sending NAKs? */  in lcp_reqci()
2241 		orc = CONFREJ;		/* Get tough if so */  in lcp_reqci()
2243 		if (rc == CONFREJ)	/* Rejecting prior CI? */  in lcp_reqci()
2248 	if (orc == CONFREJ) {		/* Reject this CI */  in lcp_reqci()
2250 	    if (cip != rejp)		/* Need to move rejected CI? */  in lcp_reqci()
2257      * If we wanted to send additional NAKs (for unsent CIs), the  in lcp_reqci()
2298     if (!go->neg_magicnumber)  in lcp_up()
2300     if (!ho->neg_magicnumber)  in lcp_up()
2305      * the MRU our peer wanted.  If we negotiated an MRU,  in lcp_up()
2315     if (!(multilink && go->neg_mrru && ho->neg_mrru))  in lcp_up()
2325     if (ho->neg_mru)  in lcp_up()
2373 #if PRINTPKT_SUPPORT
2391     if (plen < HEADERLEN)  in lcp_printpkt()
2397     if (len < HEADERLEN || len > plen)  in lcp_printpkt()
2400    if (code >= 1 && code <= (int)LWIP_ARRAYSIZE(lcp_codenames))  in lcp_printpkt()
2416 	    if (olen < 2 || olen > len) {  in lcp_printpkt()
2424 		if (olen == CILEN_SHORT) {  in lcp_printpkt()
2431 		if (olen == CILEN_LONG) {  in lcp_printpkt()
2438 		if (olen >= CILEN_SHORT) {  in lcp_printpkt()
2443 #if PAP_SUPPORT  in lcp_printpkt()
2448 #if CHAP_SUPPORT  in lcp_printpkt()
2451 			if (p < optend) {  in lcp_printpkt()
2457 #if MSCHAP_SUPPORT  in lcp_printpkt()
2474 #if EAP_SUPPORT  in lcp_printpkt()
2484 #if LQR_SUPPORT  in lcp_printpkt()
2486 		if (olen >= CILEN_SHORT) {  in lcp_printpkt()
2501 		if (olen >= CILEN_CHAR) {  in lcp_printpkt()
2515 		if (olen == CILEN_LONG) {  in lcp_printpkt()
2522 		if (olen == CILEN_VOID) {  in lcp_printpkt()
2528 		if (olen == CILEN_VOID) {  in lcp_printpkt()
2534 		if (olen == CILEN_SHORT) {  in lcp_printpkt()
2541 		if (olen == CILEN_VOID) {  in lcp_printpkt()
2548 		if (olen >= CILEN_CHAR) {  in lcp_printpkt()
2553 		    if (epd.length > MAX_ENDP_LEN)  in lcp_printpkt()
2555 		    if (epd.length > 0) {  in lcp_printpkt()
2578 	if (len > 0 && *p >= ' ' && *p < 0x7f) {  in lcp_printpkt()
2589 	if (len >= 4) {  in lcp_printpkt()
2598 	if (len >= 4) {  in lcp_printpkt()
2603 	if (code == TIMEREM) {  in lcp_printpkt()
2604 	    if (len < 4)  in lcp_printpkt()
2610 	if (len > 0) {  in lcp_printpkt()
2626     if (i < len) {  in lcp_printpkt()
2641     if (f->state == PPP_FSM_OPENED) {  in LcpLinkFailure()
2657     if (f->state != PPP_FSM_OPENED)  in LcpEchoCheck()
2663     if (pcb->lcp_echo_timer_running)  in LcpEchoCheck()
2676     if (pcb->lcp_echo_timer_running != 0) {  in LcpEchoTimeout()
2693     if (len < 4) {  in lcp_received_echo_reply()
2698     if (go->neg_magicnumber  in lcp_received_echo_reply()
2721     if (pcb->settings.lcp_echo_fails != 0) {  in LcpSendEchoRequest()
2722         if (pcb->lcp_echos_pending >= pcb->settings.lcp_echo_fails) {  in LcpSendEchoRequest()
2728 #if PPP_LCP_ADAPTIVE  in LcpSendEchoRequest()
2730      * If adaptive echos have been enabled, only send the echo request if  in LcpSendEchoRequest()
2733     if (pcb->settings.lcp_echo_adaptive) {  in LcpSendEchoRequest()
2736 #if PPP_STATS_SUPPORT  in LcpSendEchoRequest()
2741 	if (link_stats.pkts_in != last_pkts_in) {  in LcpSendEchoRequest()
2751     if (f->state == PPP_FSM_OPENED) {  in LcpSendEchoRequest()
2772     /* If a timeout interval is specified then start the timer */  in lcp_echo_lowerup()
2773     if (pcb->settings.lcp_echo_interval != 0)  in lcp_echo_lowerup()
2784     if (pcb->lcp_echo_timer_running != 0) {  in lcp_echo_lowerdown()