[Openswan Users] Getting "resource temporarily unavailable" error

[Marcus Leech]

I've been playing with roadwarrior configuration with modecfg, and got 
it working fairly
  well from the gateway end, but I'm running into problems on the 
roadwarrior end.

Here's the RW configuration file:

version 2
config setup
    interfaces=%defaultroute
    #nat_traversal=yes

conn %default
    keyingtries=2
    compress=yes
    authby=rsasig
    leftrsasigkey=%cert
    rightrsasigkey=%cert

conn roadwarrior-net
    leftsubnet=47.0.0.0/255.0.0.0
    also=roadwarrior

conn roadwarrior
    left=192.168.0.222
    modecfgpull=yes
    rightmodecfgclient=yes
    leftmodecfgserver=yes
    right=%defaultroute
    leftid="C=CA, ST=Ontario, L=Ottawa, O=Nortel, OU=Internet & Security Ser
vices, CN=localhost.localdomain, E=root at localhost.localdomain"
    rightcert=mleech at nortel.com.pem
    auto=add
    pfs=yes

#Disable OE
include /etc/ipsec.d/examples/no_oe.conf


I use "ipsec auto --up roadwarrior-net" to bring it up and
  "ipsec auto --down roadwarrior-net" to bring it down.

Once the connection is up, I can happily pass traffic.

But when I bring it down, and then back up again, I get "resource 
temporarily unavailable"
  when I try to pass traffic to 47.XX.XX.XX.

The following messages in the log seemed relevant to this problem:

Feb 23 16:01:23 localhost pluto[31039]: ERROR: netlink 
XFRM_MSG_DELPOLICY response for flow int.0 at 0.0.0.0 included errno 2: No 
such file or directory
Feb 23 16:13:50 localhost pluto[31039]: "roadwarrior-net": ERROR: 
netlink XFRM_MSG_DELPOLICY response for flow int.0 at 0.0.0.0 included 
errno 2: No such file or directory
Feb 24 14:57:42 localhost pluto[6457]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 14:58:16 localhost pluto[6457]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 14:58:39 localhost pluto[6457]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 14:59:55 localhost pluto[6457]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 15:01:50 localhost pluto[7069]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 15:03:25 localhost pluto[7069]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 15:06:48 localhost pluto[7558]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 15:20:50 localhost pluto[7558]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 15:21:48 localhost pluto[7558]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory
Feb 24 15:24:22 localhost pluto[8100]: ERROR: netlink XFRM_MSG_DELPOLICY 
response for flow int.0 at 0.0.0.0 included errno 2: No such file or directory


I can cure this problem by restarting OpenSwan on the warrior machine, 
and re-establishing "roadwarrior-net".

I'm using 2.3.1dr3

with NETKEY on a 2.6.10-1.766_FC3 kernel