openais segfaults when correct bindnetaddr is used

[Ryan Steele]

Binary package hint: openais 0.82-3ubuntu2
Ubuntu Version: Hardy Server
Architecture: amd64

The documentation (http://www.openais.org/doku.php?id=faq:configure_openais) says that the bindnetaddr parameter in the totem section of openais.conf should be the result of the system's IP bitwise AND-ed against the netmask. So, for a system with IP 192.168.7.134 and netmask 255.255.255.0 (/24), we should get 192.168.7.0:

11000000 10101000 00000111 10000110 (192.168.7.134)
11111111 11111111 11111111 00000000 (255.255.255.0)
------------------------------------------------------
11000000 10101000 00000111 00000000 (192.168.7.0)

However, when we set that option in openais.conf, the daemon segfaults:

$ cat /etc/ais/openais.conf
# Please read the openais.conf.5 manual page

totem {
   version: 2
   secauth: off
   threads: 0
   rrp_mode: none
   vsftype: none
   interface {
      ringnumber: 0
      bindnetaddr: 192.168.7.0
      mcastaddr: 226.94.1.1
      mcastport: 5405
   }
}

logging {
   fileline: on
   to_stderr: no
   to_file: yes
   logfile: /var/log/openais/openais.log
   debug: on
   timestamp: on
   logger_subsys {
      subsys: AMF
      debug: on
      tags: enter|leave|trace1|trace2|trace3|trace4|trace6
   }
}

amf {
   mode: disabled
}

$ /usr/sbin/aisexec -f
[MAIN ] AIS Executive Service RELEASE 'trunk'
[MAIN ] Copyright (C) 2002-2006 MontaVista Software, Inc and contributors.
[MAIN ] Copyright (C) 2006-2007 Red Hat, Inc.
[MAIN ] AIS Executive Service: started and ready to provide service.
[MAIN ] Successfully read main configuration file '/etc/ais/openais.conf'.
[SERV ] openais component openais_cpg loaded.
[SERV ] Registering service handler 'openais cluster closed process group service v1.01'
[SERV ] openais component openais_cfg loaded.
[SERV ] Registering service handler 'openais configuration service'
[SERV ] openais component openais_msg loaded.
[SERV ] Registering service handler 'openais message service B.01.01'
[SERV ] openais component openais_lck loaded.
[SERV ] Registering service handler 'openais distributed locking service B.01.01'
[SERV ] openais component openais_evt loaded.
[SERV ] Registering service handler 'openais event service B.01.01'
[SERV ] openais component openais_ckpt loaded.
[SERV ] Registering service handler 'openais checkpoint service B.01.01'
[SERV ] openais component openais_amf loaded.
[SERV ] Registering service handler 'openais availability management framework B.01.01'
[SERV ] openais component openais_clm loaded.
[SERV ] Registering service handler 'openais cluster membership service B.01.01'
[SERV ] openais component openais_evs loaded.
[SERV ] Registering service handler 'openais extended virtual synchrony service'
Segmentation fault

[Ryan Steele (ryan-g-steele)]

Fabio - can you please fix the binary arithmetic used here, or whatever it is that's causing the segfault? If we're not supposed to use the result of <IP> & <netmask>, can you please update the documentation accordingly? (Regardless, the daemon should never segfault)