The sysctls that describe available jail parameters don't always have a
type that sysctl(8) understands. In particular, the boolean parameters
are given a sysctl type of "B", and sysctl(8) will ignore them.
These aren't useful sysctls in any normal way - they never have a
meaningful value. The exist only so their types and sizes can be
determined by jail(8) and jail(3).
As per the jail(8) man page, you can use "sysctl -d" to show sysctl
descriptions without the value. Since it's only the values that
sysctl(8) doesn't understand, such parameters as allow.sock_af will then
show up.
Or, in a short answer to your last question: this isn't a tunable in the
normal sysctl way, just a jail parameter.
- Jamie
On 05/25/10 11:54, Glen Barber wrote:
The jail(8) man page has an entry under 'allow.*', allow.socket_af, which
states to allow access to protocol stacks that have not had jail functionality
added to them.
However, though socket_af exists in sys/kern/kern_jail.c, the sysctl itself
does not exist on my system:
orion# sysctl -a | grep socket
kern.ipc.maxsockets: 25600
kern.ipc.numopensockets: 35
security.jail.allow_raw_sockets: 0
security.jail.socket_unixiproute_only: 1
Is this sysctl missing, or is it not a tunable?
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