remodeler wrote:
I am having the same problem as Nikos I am trying to implement a vnet-enabled
service jail on FreeBSD 8.0 HEAD. I have thoroughly studied the "Network stack
virtualization" document written by Marko. I received troubleshooting help
over several days last from Julian Elischer when I raised the issue in this
thread on the freebsd-net list. I am running a GENERIC kernel on amd64, with
the additional options vimage, netgraph, ng_ether, and ng_eiface.
please recap with a script that fails
i.e. a script I can try run, and show how the output differs from what
you would expect.
(I don't have your previous emails at hand)
I successfully applied the patch Bjoern provided:
http://people.freebsd.org/~bz/20090901-10-vimage-jailed_no_vnet.diff
I tested with this patch, and also the lines in the other patch Bjoern
provided that are not in HEAD:
http://people.freebsd.org/~bz/20090906-01-V_llatbl.diff
i.e.,
+#include <sys/jail.h>
+ CURVNET_RESTORE();
+ CURVNET_SET_QUIET(TD_TO_VNET(curthread));
+vnet_lltable_init(const void *unused __unused)
+{
+
+ /* Manually do what SLIST_HEAD_INITIALIZER would do. */
+ V_lltables.slh_first = NULL;
+}
+
+VNET_SYSINIT(vnet_lltable_init, SI_SUB_PSEUDO, SI_ORDER_ANY, vnet_lltable_init,
+ NULL);
Trying to apply a ruleset after mounting devfs in a jail, I get:
devfs -m /jail/j/ns/dev rule -s 8 applyset
devfs rule: ioctl DEVFSIO_SAPPLY: No such process
Attempting to apply a default route to the ngeth0 interface bound to the jail,
I get:
route: writing to routing socket: Network is unreachable
add net default: gateway 00:23:54:08:2b:f7: Network is unreachable
netstat -r gives:
netstat: kvm not available: /dev/mem: Permission denied
Routing tables
rt_tables: symbol not in namelist
I have /dev/mem mounted in the jail. I've seen reference to mem not being
accessible in the jail, in some of the discussions on running x-server in the
jail. Julian mentioned that it looked like I need to make /dev/mem accessible
in the jail. I do not know how to do that; it also seems that if I had a
routing socket, I could live without reading memory for netstat output. I
understand each jail has its own FIB. I thought jails opened a routing socket
during their creation by default.
I need to add a default route to use the jail:
vimage ns route add default -link 00:0a:0b:0c:2b:f7
But no combination I've tried succeeds. Any help appreciated :->
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