Bloat » Cerowrt

Running uftpd, killing the process, and then running the client causes a crash followed by a reboot.

root@gw:/tmp# uftp
Killed
root@gw:/tmp# ps 
  PID USER       VSZ STAT COMMAND
    1 root      1656 S    init
    2 root         0 SW   [kthreadd]
    3 root         0 SW   [ksoftirqd/0]
    4 root         0 RW   [kworker/0:0]
    6 root         0 SW   [rcu_kthread]
    7 root         0 SW<  [khelper]
   69 root         0 SW   [sync_supers]
   71 root         0 SW   [bdi-default]
   73 root         0 SW<  [kblockd]
  103 root         0 SW   [kswapd0]
  163 root         0 SW<  [ar71xx-spi]
  176 root         0 SW   [mtdblock0]
  181 root         0 SW   [mtdblock1]
  186 root         0 SW   [mtdblock2]
  191 root         0 SW   [mtdblock3]
  196 root         0 SW   [mtdblock4]
  201 root         0 SW   [mtdblock5]
  247 root         0 SW   [kworker/0:1]
  350 root         0 SW<  [ipolldevd]
  360 root         0 SW   [kworker/u:2]
  394 root         0 SWN  [jffs2_gcd_mtd3]
  416 root         0 SW   [khubd]
  432 root      1684 S    /bin/sh /etc/init.d/rcS S boot
  433 root      1656 S    init
  435 root      1648 S    logger -s -p 6 -t sysinit
  464 root      1660 S    syslogd -C16
  466 root      1640 S    klogd
  492 root       832 S    /sbin/hotplug2 --override --persistent --set-worker
  676 root         0 SW<  [cfg80211]
 1826 root      1660 S    udhcpc -t 0 -i ge00 -b -p /var/run/dhcp-ge00.pid -O
 2612 www-data  3444 S    lighttpd -f /etc/lighttpd/cerowrt.conf
 2636 root      1144 S    /usr/sbin/dropbear -P /var/run/dropbear.1.pid -p 22
 2642 root      3432 S    lighttpd -f /etc/lighttpd/lighttpd.conf
 2830 root      1164 S    radvd -C /var/etc/radvd.conf -m stderr_syslog -p /va
 2841 root      1208 S    xinetd
 2863 bind     12032 S    named -c /etc/bind/conf/named.conf -u bind -t /etc/c
 2871 nobody     936 S    /usr/sbin/dnsmasq -K -D -y -Z -b -E -6 /etc/dnsmasq_
 2872 root       936 S    /usr/sbin/dnsmasq -K -D -y -Z -b -E -6 /etc/dnsmasq_
 2902 root      1156 S    /usr/sbin/babeld -z3 -D -I /var/run/babeld.pid -c /e
 2928 root       764 S    /usr/bin/luci-bwc -d
 2933 root      1652 S    watchdog -t 5 /dev/watchdog
 2938 root      1232 S    /usr/sbin/polipo -c /var/etc/polipo.conf
 2955 root      2692 S    /usr/sbin/ntpd -g -p /var/run/ntpd.pid
 3056 root      1208 S    /usr/sbin/dropbear -P /var/run/dropbear.1.pid -p 22
 3057 root      1664 S    -ash
 3802 root         0 SW   [kworker/u:1]
 4050 root      2508 S <  uftpd -D /tmp/ -L works
 4265 root      1648 R    ps
root@gw:/tmp# ps | grep uftp
 4050 root      2508 S <  uftpd -D /tmp/ -L works
 4283 root      1640 D    grep uftp
root@gw:/tmp# kill 4050
root@gw:/tmp# uftp
Killed
root@gw:/tmp# ps | grep uftp
 4286 root      1640 R    grep uftp
root@gw:/tmp# uftp
uftp [ -U ] [ -R txrate ] [ -W txweight ] [ -m min_time ]
    [ -n ] [ -L logfile ] [ -B udp_buf_size ] [ -Y keytype ] [ -h hashtype ]
    [ -w sigtype ] [ -c ] [ -k key_file ] [ -K new_key_length ] [ -l ] [ -T ]
    [ -A announce_time ] [ -S status_time ] [ -a announce_interval ]
    [ -s status_interval ] [ -r register_interval ] [ -d done_interval ]
    [ -b mtu ] [ -t ttl ] [ -Q dscp ] [ -z | -Z ] [ -I interface ]
    [ -p port ] [ -j proxylist_file ] [ -q ] [ -f ] [ -y ] [ -x log_level ]
    [ -H host[,host...] | -H @hostlist_file | -F restart_file ] [ -o ]
    [ -X exclude_file ] [ -M pub_multicast_addr ] [ -P priv_multicast_addr ]
    [ -C cc_config_file ] [ -D dest_name ] [ -E base_dir[,base_dir... ] ]
    { -i list_file | file [ file... ] }
Killed
root@gw:/tmp# uftp
---ROUTER DISCONNECTS AND REBOOTS HERE---
Write failed: Broken pipe
matt@wontseeme:~/src/bismark_week/uftp-3.5.1$ 

Still a problem? Or was this crash related to attempting to transfer your entire pr0n connection to the router?

What is the correct status of the uftp bug??

I have installed the uftp and uftpd modules on rc4 and ran a simple file exchange between a host and the router experiment in a wired setting.
I also changed the router from server to client(uftp to uftpd) and back and so far it hasn't crashed.

The wireless link, on the other hand, seems to be not functioning. It seems like UFTP doesn't run on the wireless link AT ALL.

did you add multicast routes to the wireless interface?

Yes. I actually got it to work one way (when the host sends the file and the router receives it) but not the other way around. Most probably it's something weird on my MAC that is not allowing it to respond, (it sees the packets I've checked with tcpdump). What can it be? Whatever it is, it wasn't doing it in ATL.

on the plus side, over a single hop, I can get the multicast packets.

on the minus side, over more than one hop, no such luck, and can't change mc_forwarding vis either
sysctl nor /proc

echo 1 > /proc/sys/net/ipv4/conf/se*/mc_forwarding # permission denied

Is also a problem in ubuntu.

d@cruithne:~/src/uftp-3.5.1$ sudo echo 1 > /proc/sys/net/ipv4/conf/eth*/mc_forwarding
bash: /proc/sys/net/ipv4/conf/eth0/mc_forwarding: Permission denied