… | |
… | |
85 | rsachallenge chg; |
85 | rsachallenge chg; |
86 | }; |
86 | }; |
87 | |
87 | |
88 | struct rsa_cache : list<rsa_entry> |
88 | struct rsa_cache : list<rsa_entry> |
89 | { |
89 | { |
90 | void cleaner_cb (tstamp &ts); time_watcher cleaner; |
90 | void cleaner_cb (time_watcher &w); time_watcher cleaner; |
91 | |
91 | |
92 | bool find (const rsaid &id, rsachallenge &chg) |
92 | bool find (const rsaid &id, rsachallenge &chg) |
93 | { |
93 | { |
94 | for (iterator i = begin (); i != end (); ++i) |
94 | for (iterator i = begin (); i != end (); ++i) |
95 | { |
95 | { |
… | |
… | |
129 | : cleaner (this, &rsa_cache::cleaner_cb) |
129 | : cleaner (this, &rsa_cache::cleaner_cb) |
130 | { } |
130 | { } |
131 | |
131 | |
132 | } rsa_cache; |
132 | } rsa_cache; |
133 | |
133 | |
134 | void rsa_cache::cleaner_cb (tstamp &ts) |
134 | void rsa_cache::cleaner_cb (time_watcher &w) |
135 | { |
135 | { |
136 | if (empty ()) |
136 | if (empty ()) |
137 | ts = TSTAMP_CANCEL; |
137 | w.at = TSTAMP_CANCEL; |
138 | else |
138 | else |
139 | { |
139 | { |
140 | ts = NOW + RSA_TTL; |
140 | w.at = NOW + RSA_TTL; |
141 | |
141 | |
142 | for (iterator i = begin (); i != end (); ) |
142 | for (iterator i = begin (); i != end (); ) |
143 | if (i->expire <= NOW) |
143 | if (i->expire <= NOW) |
144 | i = erase (i); |
144 | i = erase (i); |
145 | else |
145 | else |
… | |
… | |
197 | // only do action once every x seconds per host whole allowing bursts. |
197 | // only do action once every x seconds per host whole allowing bursts. |
198 | // this implementation ("splay list" ;) is inefficient, |
198 | // this implementation ("splay list" ;) is inefficient, |
199 | // but low on resources. |
199 | // but low on resources. |
200 | struct net_rate_limiter : list<net_rateinfo> |
200 | struct net_rate_limiter : list<net_rateinfo> |
201 | { |
201 | { |
202 | static const double ALPHA = 1. - 1. / 90.; // allow bursts |
202 | static const double ALPHA = 1. - 1. / 180.; // allow bursts |
203 | static const double CUTOFF = 20.; // one event every CUTOFF seconds |
203 | static const double CUTOFF = 10.; // one event every CUTOFF seconds |
204 | static const double EXPIRE = CUTOFF * 30.; // expire entries after this time |
204 | static const double EXPIRE = CUTOFF * 30.; // expire entries after this time |
205 | |
205 | |
206 | bool can (const sockinfo &si) { return can((u32)si.host); } |
206 | bool can (const sockinfo &si) { return can((u32)si.host); } |
207 | bool can (u32 host); |
207 | bool can (u32 host); |
208 | }; |
208 | }; |
209 | |
209 | |
… | |
… | |
285 | hmac_gen (ctx); |
285 | hmac_gen (ctx); |
286 | |
286 | |
287 | return !memcmp (hmac, hmac_digest, HMACLENGTH); |
287 | return !memcmp (hmac, hmac_digest, HMACLENGTH); |
288 | } |
288 | } |
289 | |
289 | |
290 | void vpn_packet::set_hdr (ptype type, unsigned int dst) |
290 | void vpn_packet::set_hdr (ptype type_, unsigned int dst) |
291 | { |
291 | { |
292 | this->type = type; |
292 | type = type_; |
293 | |
293 | |
294 | int src = THISNODE->id; |
294 | int src = THISNODE->id; |
295 | |
295 | |
296 | src1 = src; |
296 | src1 = src; |
297 | srcdst = ((src >> 8) << 4) | (dst >> 8); |
297 | srcdst = ((src >> 8) << 4) | (dst >> 8); |
… | |
… | |
546 | }; |
546 | }; |
547 | |
547 | |
548 | ///////////////////////////////////////////////////////////////////////////// |
548 | ///////////////////////////////////////////////////////////////////////////// |
549 | |
549 | |
550 | void |
550 | void |
551 | connection::reset_dstaddr () |
551 | connection::reset_si () |
552 | { |
552 | { |
553 | si.set (conf); |
|
|
554 | } |
|
|
555 | |
|
|
556 | void |
|
|
557 | connection::send_ping (const sockinfo &si, u8 pong) |
|
|
558 | { |
|
|
559 | ping_packet *pkt = new ping_packet; |
|
|
560 | |
|
|
561 | pkt->setup (conf->id, pong ? ping_packet::PT_PONG : ping_packet::PT_PING); |
|
|
562 | send_vpn_packet (pkt, si, IPTOS_LOWDELAY); |
|
|
563 | |
|
|
564 | delete pkt; |
|
|
565 | } |
|
|
566 | |
|
|
567 | void |
|
|
568 | connection::send_reset (const sockinfo &si) |
|
|
569 | { |
|
|
570 | if (reset_rate_limiter.can (si) && connectmode != conf_node::C_DISABLED) |
|
|
571 | { |
|
|
572 | config_packet *pkt = new config_packet; |
|
|
573 | |
|
|
574 | pkt->setup (vpn_packet::PT_RESET, conf->id); |
|
|
575 | send_vpn_packet (pkt, si, IPTOS_MINCOST); |
|
|
576 | |
|
|
577 | delete pkt; |
|
|
578 | } |
|
|
579 | } |
|
|
580 | |
|
|
581 | void |
|
|
582 | connection::send_auth_request (const sockinfo &si, bool initiate) |
|
|
583 | { |
|
|
584 | auth_req_packet *pkt = new auth_req_packet (conf->id, initiate, THISNODE->protocols); |
|
|
585 | |
|
|
586 | protocol = best_protocol (THISNODE->protocols & conf->protocols); |
553 | protocol = best_protocol (THISNODE->protocols & conf->protocols); |
587 | |
554 | |
588 | // mask out protocols we cannot establish |
555 | // mask out protocols we cannot establish |
589 | if (!conf->udp_port) protocol &= ~PROT_UDPv4; |
556 | if (!conf->udp_port) protocol &= ~PROT_UDPv4; |
590 | if (!conf->tcp_port) protocol &= ~PROT_TCPv4; |
557 | if (!conf->tcp_port) protocol &= ~PROT_TCPv4; |
591 | |
558 | |
592 | if (protocol) |
559 | si.set (conf, protocol); |
|
|
560 | } |
|
|
561 | |
|
|
562 | // ensure sockinfo is valid, forward if necessary |
|
|
563 | const sockinfo & |
|
|
564 | connection::forward_si (const sockinfo &si) const |
|
|
565 | { |
|
|
566 | if (!si.valid ()) |
|
|
567 | { |
|
|
568 | connection *r = vpn->find_router (); |
|
|
569 | |
|
|
570 | if (r) |
|
|
571 | { |
|
|
572 | slog (L_DEBUG, _("%s: no common protocol, trying indirectly through %s"), |
|
|
573 | conf->nodename, r->conf->nodename); |
|
|
574 | return r->si; |
|
|
575 | } |
|
|
576 | else |
|
|
577 | slog (L_DEBUG, _("%s: node unreachable, no common protocol"), |
|
|
578 | conf->nodename); |
593 | { |
579 | } |
594 | rsachallenge chg; |
|
|
595 | |
580 | |
596 | rsa_cache.gen (pkt->id, chg); |
581 | return si; |
|
|
582 | } |
597 | |
583 | |
598 | if (0 > RSA_public_encrypt (sizeof chg, |
584 | void |
599 | (unsigned char *)&chg, (unsigned char *)&pkt->encr, |
585 | connection::send_ping (const sockinfo &si, u8 pong) |
600 | conf->rsa_key, RSA_PKCS1_OAEP_PADDING)) |
586 | { |
601 | fatal ("RSA_public_encrypt error"); |
587 | ping_packet *pkt = new ping_packet; |
602 | |
588 | |
603 | slog (L_TRACE, ">>%d PT_AUTH_REQ [%s]", conf->id, (const char *)si); |
589 | pkt->setup (conf->id, pong ? ping_packet::PT_PONG : ping_packet::PT_PING); |
|
|
590 | vpn->send_vpn_packet (pkt, si, IPTOS_LOWDELAY); |
604 | |
591 | |
605 | send_vpn_packet (pkt, si, IPTOS_RELIABILITY); // rsa is very very costly |
592 | delete pkt; |
|
|
593 | } |
|
|
594 | |
|
|
595 | void |
|
|
596 | connection::send_reset (const sockinfo &si) |
|
|
597 | { |
|
|
598 | if (reset_rate_limiter.can (si) && connectmode != conf_node::C_DISABLED) |
|
|
599 | { |
|
|
600 | config_packet *pkt = new config_packet; |
|
|
601 | |
|
|
602 | pkt->setup (vpn_packet::PT_RESET, conf->id); |
|
|
603 | vpn->send_vpn_packet (pkt, si, IPTOS_MINCOST); |
606 | |
604 | |
607 | delete pkt; |
605 | delete pkt; |
608 | } |
606 | } |
609 | else |
607 | } |
610 | ; // silently fail |
608 | |
|
|
609 | void |
|
|
610 | connection::send_auth_request (const sockinfo &si, bool initiate) |
|
|
611 | { |
|
|
612 | auth_req_packet *pkt = new auth_req_packet (conf->id, initiate, THISNODE->protocols); |
|
|
613 | |
|
|
614 | rsachallenge chg; |
|
|
615 | |
|
|
616 | rsa_cache.gen (pkt->id, chg); |
|
|
617 | |
|
|
618 | if (0 > RSA_public_encrypt (sizeof chg, |
|
|
619 | (unsigned char *)&chg, (unsigned char *)&pkt->encr, |
|
|
620 | conf->rsa_key, RSA_PKCS1_OAEP_PADDING)) |
|
|
621 | fatal ("RSA_public_encrypt error"); |
|
|
622 | |
|
|
623 | slog (L_TRACE, ">>%d PT_AUTH_REQ [%s]", conf->id, (const char *)si); |
|
|
624 | |
|
|
625 | vpn->send_vpn_packet (pkt, si, IPTOS_RELIABILITY | IPTOS_LOWDELAY); // rsa is very very costly |
|
|
626 | |
|
|
627 | delete pkt; |
611 | } |
628 | } |
612 | |
629 | |
613 | void |
630 | void |
614 | connection::send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg) |
631 | connection::send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg) |
615 | { |
632 | { |
… | |
… | |
621 | |
638 | |
622 | pkt->hmac_set (octx); |
639 | pkt->hmac_set (octx); |
623 | |
640 | |
624 | slog (L_TRACE, ">>%d PT_AUTH_RES [%s]", conf->id, (const char *)si); |
641 | slog (L_TRACE, ">>%d PT_AUTH_RES [%s]", conf->id, (const char *)si); |
625 | |
642 | |
626 | send_vpn_packet (pkt, si, IPTOS_RELIABILITY); // rsa is very very costly |
643 | vpn->send_vpn_packet (pkt, si, IPTOS_RELIABILITY); // rsa is very very costly |
627 | |
644 | |
628 | delete pkt; |
645 | delete pkt; |
629 | } |
646 | } |
630 | |
647 | |
631 | void |
648 | void |
… | |
… | |
635 | conf->id, rid, (const char *)rsi); |
652 | conf->id, rid, (const char *)rsi); |
636 | |
653 | |
637 | connect_info_packet *r = new connect_info_packet (conf->id, rid, rsi, rprotocols); |
654 | connect_info_packet *r = new connect_info_packet (conf->id, rid, rsi, rprotocols); |
638 | |
655 | |
639 | r->hmac_set (octx); |
656 | r->hmac_set (octx); |
640 | send_vpn_packet (r, si); |
657 | vpn->send_vpn_packet (r, si); |
641 | |
658 | |
642 | delete r; |
659 | delete r; |
643 | } |
660 | } |
644 | |
661 | |
645 | void |
662 | void |
646 | connection::establish_connection_cb (tstamp &ts) |
663 | connection::establish_connection_cb (time_watcher &w) |
647 | { |
664 | { |
648 | if (ictx || conf == THISNODE |
665 | if (ictx || conf == THISNODE |
649 | || connectmode == conf_node::C_NEVER |
666 | || connectmode == conf_node::C_NEVER |
650 | || connectmode == conf_node::C_DISABLED) |
667 | || connectmode == conf_node::C_DISABLED) |
651 | ts = TSTAMP_CANCEL; |
668 | w.at = TSTAMP_CANCEL; |
652 | else if (ts <= NOW) |
669 | else if (w.at <= NOW) |
653 | { |
670 | { |
654 | double retry_int = double (retry_cnt & 3 ? (retry_cnt & 3) : 1 << (retry_cnt >> 2)) * 0.6; |
671 | double retry_int = double (retry_cnt & 3 ? (retry_cnt & 3) : 1 << (retry_cnt >> 2)) * 0.6; |
655 | |
672 | |
656 | if (retry_int < 3600 * 8) |
673 | if (retry_int < 3600 * 8) |
657 | retry_cnt++; |
674 | retry_cnt++; |
658 | |
675 | |
659 | ts = NOW + retry_int; |
676 | w.at = NOW + retry_int; |
660 | |
677 | |
661 | if (conf->hostname) |
678 | reset_si (); |
|
|
679 | |
|
|
680 | if (si.prot && !si.host) |
|
|
681 | vpn->connect_request (conf->id); |
|
|
682 | else |
662 | { |
683 | { |
663 | reset_dstaddr (); |
684 | const sockinfo &dsi = forward_si (si); |
|
|
685 | |
664 | if (si.host && auth_rate_limiter.can (si)) |
686 | if (dsi.valid () && auth_rate_limiter.can (dsi)) |
665 | { |
687 | { |
666 | if (retry_cnt < 4) |
688 | if (retry_cnt < 4) |
667 | send_auth_request (si, true); |
689 | send_auth_request (dsi, true); |
668 | else |
690 | else |
669 | send_ping (si, 0); |
691 | send_ping (dsi, 0); |
670 | } |
692 | } |
671 | } |
693 | } |
672 | else |
|
|
673 | vpn->connect_request (conf->id); |
|
|
674 | } |
694 | } |
675 | } |
695 | } |
676 | |
696 | |
677 | void |
697 | void |
678 | connection::reset_connection () |
698 | connection::reset_connection () |
… | |
… | |
707 | |
727 | |
708 | reset_connection (); |
728 | reset_connection (); |
709 | } |
729 | } |
710 | |
730 | |
711 | void |
731 | void |
712 | connection::rekey_cb (tstamp &ts) |
732 | connection::rekey_cb (time_watcher &w) |
713 | { |
733 | { |
714 | ts = TSTAMP_CANCEL; |
734 | w.at = TSTAMP_CANCEL; |
715 | |
735 | |
716 | reset_connection (); |
736 | reset_connection (); |
717 | establish_connection (); |
737 | establish_connection (); |
718 | } |
738 | } |
719 | |
739 | |
… | |
… | |
727 | && (*pkt)[12] == 0x08 && (*pkt)[13] == 0x00 // IP |
747 | && (*pkt)[12] == 0x08 && (*pkt)[13] == 0x00 // IP |
728 | && ((*pkt)[14] & 0xf0) == 0x40) // IPv4 |
748 | && ((*pkt)[14] & 0xf0) == 0x40) // IPv4 |
729 | tos = (*pkt)[15] & IPTOS_TOS_MASK; |
749 | tos = (*pkt)[15] & IPTOS_TOS_MASK; |
730 | |
750 | |
731 | p->setup (this, broadcast ? 0 : conf->id, &((*pkt)[6 + 6]), pkt->len - 6 - 6, ++oseqno); // skip 2 macs |
751 | p->setup (this, broadcast ? 0 : conf->id, &((*pkt)[6 + 6]), pkt->len - 6 - 6, ++oseqno); // skip 2 macs |
732 | send_vpn_packet (p, si, tos); |
752 | vpn->send_vpn_packet (p, si, tos); |
733 | |
753 | |
734 | delete p; |
754 | delete p; |
735 | |
755 | |
736 | if (oseqno > MAX_SEQNO) |
756 | if (oseqno > MAX_SEQNO) |
737 | rekey (); |
757 | rekey (); |
… | |
… | |
747 | if (!broadcast)//DDDD |
767 | if (!broadcast)//DDDD |
748 | queue.put (new tap_packet (*pkt)); |
768 | queue.put (new tap_packet (*pkt)); |
749 | |
769 | |
750 | establish_connection (); |
770 | establish_connection (); |
751 | } |
771 | } |
|
|
772 | } |
|
|
773 | |
|
|
774 | void connection::inject_vpn_packet (vpn_packet *pkt, int tos) |
|
|
775 | { |
|
|
776 | if (ictx && octx) |
|
|
777 | vpn->send_vpn_packet (pkt, si, tos); |
|
|
778 | else |
|
|
779 | establish_connection (); |
752 | } |
780 | } |
753 | |
781 | |
754 | void |
782 | void |
755 | connection::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
783 | connection::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
756 | { |
784 | { |
… | |
… | |
820 | slog (L_ERR, _("%s(%s): challenge illegal or corrupted"), |
848 | slog (L_ERR, _("%s(%s): challenge illegal or corrupted"), |
821 | conf->nodename, (const char *)rsi); |
849 | conf->nodename, (const char *)rsi); |
822 | else |
850 | else |
823 | { |
851 | { |
824 | retry_cnt = 0; |
852 | retry_cnt = 0; |
825 | establish_connection.set (NOW + 8); //? ;) |
853 | establish_connection.start (NOW + 8); //? ;) |
826 | keepalive.reset (); |
854 | keepalive.reset (); |
827 | rekey.reset (); |
855 | rekey.reset (); |
828 | |
856 | |
829 | delete ictx; |
857 | delete ictx; |
830 | ictx = 0; |
858 | ictx = 0; |
… | |
… | |
885 | delete ictx; ictx = cctx; |
913 | delete ictx; ictx = cctx; |
886 | |
914 | |
887 | iseqno.reset (ntohl (*(u32 *)&chg[CHG_SEQNO]) & 0x7fffffff); // at least 2**31 sequence numbers are valid |
915 | iseqno.reset (ntohl (*(u32 *)&chg[CHG_SEQNO]) & 0x7fffffff); // at least 2**31 sequence numbers are valid |
888 | |
916 | |
889 | si = rsi; |
917 | si = rsi; |
|
|
918 | protocol = rsi.prot; |
890 | |
919 | |
891 | rekey.set (NOW + ::conf.rekey); |
920 | rekey.start (NOW + ::conf.rekey); |
892 | keepalive.set (NOW + ::conf.keepalive); |
921 | keepalive.start (NOW + ::conf.keepalive); |
893 | |
922 | |
894 | // send queued packets |
923 | // send queued packets |
895 | while (tap_packet *p = queue.get ()) |
924 | while (tap_packet *p = queue.get ()) |
896 | { |
925 | { |
897 | send_data_packet (p); |
926 | send_data_packet (p); |
898 | delete p; |
927 | delete p; |
899 | } |
928 | } |
900 | |
929 | |
901 | connectmode = conf->connectmode; |
930 | connectmode = conf->connectmode; |
902 | |
931 | |
903 | slog (L_INFO, _("%s(%s): %s connection established, protocol version %d.%d"), |
932 | slog (L_INFO, _("%s(%s): connection established, protocol version %d.%d"), |
904 | conf->nodename, (const char *)rsi, |
933 | conf->nodename, (const char *)rsi, |
905 | strprotocol (protocol), |
|
|
906 | p->prot_major, p->prot_minor); |
934 | p->prot_major, p->prot_minor); |
907 | |
935 | |
908 | if (::conf.script_node_up) |
936 | if (::conf.script_node_up) |
909 | run_script (run_script_cb (this, &connection::script_node_up), false); |
937 | run_script (run_script_cb (this, &connection::script_node_up), false); |
910 | |
938 | |
… | |
… | |
976 | if (ictx && octx && rsi == si && pkt->hmac_chk (ictx)) |
1004 | if (ictx && octx && rsi == si && pkt->hmac_chk (ictx)) |
977 | { |
1005 | { |
978 | connect_req_packet *p = (connect_req_packet *) pkt; |
1006 | connect_req_packet *p = (connect_req_packet *) pkt; |
979 | |
1007 | |
980 | assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything |
1008 | assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything |
|
|
1009 | connection *c = vpn->conns[p->id - 1]; |
981 | conf->protocols = p->protocols; |
1010 | conf->protocols = p->protocols; |
982 | connection *c = vpn->conns[p->id - 1]; |
|
|
983 | |
1011 | |
984 | slog (L_TRACE, "<<%d PT_CONNECT_REQ(%d) [%d]\n", |
1012 | slog (L_TRACE, "<<%d PT_CONNECT_REQ(%d) [%d]\n", |
985 | conf->id, p->id, c->ictx && c->octx); |
1013 | conf->id, p->id, c->ictx && c->octx); |
986 | |
1014 | |
987 | if (c->ictx && c->octx) |
1015 | if (c->ictx && c->octx) |
… | |
… | |
999 | if (ictx && octx && rsi == si && pkt->hmac_chk (ictx)) |
1027 | if (ictx && octx && rsi == si && pkt->hmac_chk (ictx)) |
1000 | { |
1028 | { |
1001 | connect_info_packet *p = (connect_info_packet *) pkt; |
1029 | connect_info_packet *p = (connect_info_packet *) pkt; |
1002 | |
1030 | |
1003 | assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything |
1031 | assert (p->id > 0 && p->id <= vpn->conns.size ()); // hmac-auth does not mean we accept anything |
1004 | conf->protocols = p->protocols; |
1032 | |
1005 | connection *c = vpn->conns[p->id - 1]; |
1033 | connection *c = vpn->conns[p->id - 1]; |
|
|
1034 | |
|
|
1035 | c->conf->protocols = p->protocols; |
|
|
1036 | protocol = best_protocol (c->conf->protocols & THISNODE->protocols & p->si.supported_protocols (c->conf)); |
|
|
1037 | p->si.upgrade_protocol (protocol, c->conf); |
1006 | |
1038 | |
1007 | slog (L_TRACE, "<<%d PT_CONNECT_INFO(%d,%s) (%d)", |
1039 | slog (L_TRACE, "<<%d PT_CONNECT_INFO(%d,%s) (%d)", |
1008 | conf->id, p->id, (const char *)p->si, !c->ictx && !c->octx); |
1040 | conf->id, p->id, (const char *)p->si, !c->ictx && !c->octx); |
1009 | |
1041 | |
|
|
1042 | const sockinfo &dsi = forward_si (p->si); |
|
|
1043 | |
|
|
1044 | if (dsi.valid ()) |
1010 | c->send_auth_request (p->si, true); |
1045 | c->send_auth_request (dsi, true); |
1011 | } |
1046 | } |
1012 | |
1047 | |
1013 | break; |
1048 | break; |
1014 | |
1049 | |
1015 | default: |
1050 | default: |
1016 | send_reset (rsi); |
1051 | send_reset (rsi); |
1017 | break; |
1052 | break; |
1018 | } |
1053 | } |
1019 | } |
1054 | } |
1020 | |
1055 | |
1021 | void connection::keepalive_cb (tstamp &ts) |
1056 | void connection::keepalive_cb (time_watcher &w) |
1022 | { |
1057 | { |
1023 | if (NOW >= last_activity + ::conf.keepalive + 30) |
1058 | if (NOW >= last_activity + ::conf.keepalive + 30) |
1024 | { |
1059 | { |
1025 | reset_connection (); |
1060 | reset_connection (); |
1026 | establish_connection (); |
1061 | establish_connection (); |
1027 | } |
1062 | } |
1028 | else if (NOW < last_activity + ::conf.keepalive) |
1063 | else if (NOW < last_activity + ::conf.keepalive) |
1029 | ts = last_activity + ::conf.keepalive; |
1064 | w.at = last_activity + ::conf.keepalive; |
1030 | else if (conf->connectmode != conf_node::C_ONDEMAND |
1065 | else if (conf->connectmode != conf_node::C_ONDEMAND |
1031 | || THISNODE->connectmode != conf_node::C_ONDEMAND) |
1066 | || THISNODE->connectmode != conf_node::C_ONDEMAND) |
1032 | { |
1067 | { |
1033 | send_ping (si); |
1068 | send_ping (si); |
1034 | ts = NOW + 5; |
1069 | w.at = NOW + 5; |
1035 | } |
1070 | } |
1036 | else |
1071 | else |
1037 | reset_connection (); |
1072 | reset_connection (); |
1038 | } |
1073 | } |
1039 | |
1074 | |
… | |
… | |
1041 | { |
1076 | { |
1042 | connect_req_packet *p = new connect_req_packet (conf->id, id, conf->protocols); |
1077 | connect_req_packet *p = new connect_req_packet (conf->id, id, conf->protocols); |
1043 | |
1078 | |
1044 | slog (L_TRACE, ">>%d PT_CONNECT_REQ(%d)", conf->id, id); |
1079 | slog (L_TRACE, ">>%d PT_CONNECT_REQ(%d)", conf->id, id); |
1045 | p->hmac_set (octx); |
1080 | p->hmac_set (octx); |
1046 | send_vpn_packet (p, si); |
1081 | vpn->send_vpn_packet (p, si); |
1047 | |
1082 | |
1048 | delete p; |
1083 | delete p; |
1049 | } |
1084 | } |
1050 | |
1085 | |
1051 | void connection::script_node () |
1086 | void connection::script_node () |
… | |
… | |
1075 | putenv ("STATE=down"); |
1110 | putenv ("STATE=down"); |
1076 | |
1111 | |
1077 | return ::conf.script_node_up ? ::conf.script_node_down : "node-down"; |
1112 | return ::conf.script_node_up ? ::conf.script_node_down : "node-down"; |
1078 | } |
1113 | } |
1079 | |
1114 | |
1080 | // send a vpn packet out to other hosts |
|
|
1081 | void |
|
|
1082 | connection::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
|
|
1083 | { |
|
|
1084 | switch (protocol) |
|
|
1085 | { |
|
|
1086 | case PROT_IPv4: |
|
|
1087 | vpn->send_ipv4_packet (pkt, si, tos); |
|
|
1088 | break; |
|
|
1089 | |
|
|
1090 | case PROT_UDPv4: |
|
|
1091 | vpn->send_udpv4_packet (pkt, si, tos); |
|
|
1092 | break; |
|
|
1093 | |
|
|
1094 | case PROT_TCPv4: |
|
|
1095 | vpn->send_tcpv4_packet (pkt, si, tos); |
|
|
1096 | break; |
|
|
1097 | } |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | connection::connection(struct vpn *vpn_) |
1115 | connection::connection(struct vpn *vpn_) |
1101 | : vpn(vpn_) |
1116 | : vpn(vpn_) |
1102 | , rekey (this, &connection::rekey_cb) |
1117 | , rekey (this, &connection::rekey_cb) |
1103 | , keepalive (this, &connection::keepalive_cb) |
1118 | , keepalive (this, &connection::keepalive_cb) |
1104 | , establish_connection (this, &connection::establish_connection_cb) |
1119 | , establish_connection (this, &connection::establish_connection_cb) |