Re: AW: [B.A.T.M.A.N.] wrong ip rules / tunnel crashes

Marek Lindner schrieb: Sorry, my fault - I should open my eyes: at first look i thought batmand deleted the "from all to 104.0.0.0/8 lookup olsr" set. ok ;) after a small&dirty hack in batman-startscript olsrd+batman+gatewaytunnel working: --- 8< --- # policy-routing workaround for olsr ip-rules if [ "$gw_choose" != 0 -o -n "$gw_tunnel" ] && [ "$(nvram get ff_policyrt)" = 1 ]; then echo -e "\nWorkaround to prevent conflicts between olsrd/batmand" # eval $(/usr/bin/netparam) # allready done for dev in WIFI LAN WAN; do # needs consistent '$dev_proto=olsr' for olsr-devices # (unfortunately not any more in ff-v1.6.x) if [ "$(eval 'echo ${'$dev'OLSR}')" = 1 ]; then OLSRNET="$(eval 'echo ${'$dev'NET}')/$(eval 'echo ${'$dev'PRE}')" echo "* deleting all batmand ip rules 'from $OLSRNET lookup 68'" while ip rule del from $OLSRNET lookup 68 2>/dev/null; do :; done echo "* set ip rule 'from $OLSRNET lookup olsr prio 6800'" ip rule add from $OLSRNET lookup olsr prio 6800 echo "ip rule del from $OLSRNET lookup olsr prio 6800" >> $IF_LOCK fi done echo fi --- >8 --- but i noticed that the gatewaytunnel crashes somtimes if a package with wrong source-adress comes along: (client) root@17-3:~# tcpdump -ni gate0 tcpdump: WARNING: arptype 65534 not supported by libpcap - falling back to cooked socket tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on gate0, link-type LINUX_SLL (Linux cooked), capture size 96 bytes 01:31:01.584874 IP 169.254.0.2.1024 > 88.198.178.18.53: 43979+[|domain] 01:31:01.670353 IP 88.198.178.18.53 > 169.254.0.2.1024: 43979[|domain] 01:32:01.580469 IP 169.254.0.2.1024 > 88.198.178.18.53: 62407+[|domain] 01:32:01.641472 IP 88.198.178.18.53 > 169.254.0.2.1024: 62407[|domain] 01:32:20.330535 IP 104.61.17.3.41155 > 134.109.133.25.143: P 4242585185:4242585222(37) ack 1209814060 win 2003 <nop,nop,timestamp 165019315 636115595> 01:32:20.331694 IP 104.61.17.3.41156 > 134.109.133.25.143: P 4243816576:4243816613(37) ack 373738705 win 1413 <nop,nop,timestamp 165019315 636115598> 01:32:20.334014 IP 104.61.17.3.49819 > 88.198.44.10.993: P 4250143974:4250144011(37) ack 2087267410 win 2003 <nop,nop,timestamp 165019316 1323419075> tcpdump: pcap_loop: recvfrom: Network is down 30 packets captured 63 packets received by filter 0 packets dropped by kernel (gateway) root@17-35:~# batmand -cd3 [...] Gateway - assigned 169.254.0.2 to client: 105.61.17.3 Gateway - assigned 169.254.0.2 to client: 105.61.17.3 Gateway - assigned 169.254.0.2 to client: 105.61.17.3 Deleting route to 105.61.17.32/32 via 105.61.89.90 (table 66 - vlan1:bat) Adding route to 105.61.17.32/32 via 105.61.89.92 (table 66 - vlan1:bat) Deleting route to 105.61.17.17/32 via 105.61.89.90 (table 66 - vlan1:bat) Adding route to 105.61.17.17/32 via 105.61.89.92 (table 66 - vlan1:bat) Gateway - assigned 169.254.0.1 to client: 105.61.89.90 Deleting route to 105.61.17.17/32 via 105.61.89.92 (table 66 - vlan1:bat) Adding route to 105.61.17.17/32 via 105.61.89.90 (table 66 - vlan1:bat) Gateway - assigned 169.254.0.1 to client: 105.61.89.90 Deleting route to 105.61.17.19/32 via 105.61.89.90 (table 66 - vlan1:bat) Adding route to 105.61.17.19/32 via 105.61.89.92 (table 66 - vlan1:bat) Deleting route to 105.61.17.19/32 via 105.61.89.92 (table 66 - vlan1:bat) Adding route to 105.61.17.19/32 via 105.61.89.90 (table 66 - vlan1:bat) Gateway - assigned 169.254.0.2 to client: 105.61.17.3 Deleting route to 105.61.17.32/32 via 105.61.89.92 (table 66 - vlan1:bat) Adding route to 105.61.17.32/32 via 105.61.89.90 (table 66 - vlan1:bat) Gateway - assigned 169.254.0.1 to client: 105.61.89.90 Gateway - assigned 169.254.0.1 to client: 105.61.89.90 Gateway - assigned 169.254.0.1 to client: 105.61.89.90 Gateway - assigned 169.254.0.1 to client: 105.61.89.90 Unix socket: got connection Unix client closed connection ... root@17-35:~# logread [...] Nov 14 15:35:37 (none) daemon.err batmand[30596]: Error - can't delete route to 105.61.17.17/32 via 105.61.89.90 (table 66): No such process Nov 14 15:38:14 (none) daemon.err batmand[30596]: Error - can't delete route to 105.61.17.32/32 via 105.61.89.90 (table 66): No such process Nov 14 15:40:09 (none) daemon.err batmand[30604]: Error - got packet from unknown client: 105.61.17.3 (virtual ip 104.61.17.3) Nov 14 15:40:09 (none) daemon.err batmand[30604]: Error - got packet from unknown client: 105.61.17.3 (virtual ip 104.61.17.3) Nov 14 15:40:10 (none) daemon.err batmand[30604]: Error - got packet from unknown client: 105.61.17.3 (virtual ip 104.61.17.3) Nov 14 15:40:11 (none) daemon.err batmand[30604]: Error - got packet from unknown client: 105.61.17.3 (virtual ip 104.61.17.3) Regards tetzlav