Make help output of relayctl redirect|host|table friendlier.

From Kapetanakis Giannis

OK benno@

Clean up the relayd headers with help of include-what-you-use and some
manual review. Based on common practice, relayd.h now includes the
necessary headers for itself.

OK benno@

spacing

Fix reload support in relayd(8) by reimplementing large parts of the
daemon infrastructure. The previous design made it fairly hard to
reload the complex data structures, especially relays and protocols.
One of the reasons was that the privsep'd relayd processes had two
ways of getting their configuration: 1) from memory after forking from
the parent process and 2) and (partially) via imsgs after reload. The
new implementation first forks the privsep'd children before the
parents loads the configuration and sends it via imsgs to them; so it
is only like 2) before. It is based on an approach that I first
implemented for iked(8) and I also fixed many bugs in the code.

Thanks to many testers including dlg@ sthen@ phessler@
ok pyr@ dlg@ sthen@

move some things around to make intentions clear. not really a functional
change. ok claudio

add "log brief" and "log verbose" to change logging verbosity
like several other things in the tree.

ok reyk@ looks fine claudio@

Don't use [] in function arguments when dealing with arrays
we don't know the size of, otherwise gcc >= 4 will error.

ok markus@ deraadt@

also report routers and their host states in relayctl

ok pyr@, jmc@ for man bits

implement statistics for redirections, like the existing statistics
for relays. they can be viewed with the new "relayctl show redirects"
command.

(uses the previous change to pf_table.c to get the statistics)

looks good pyr@

Rename everything which reffered to services refer to rdr for internals
(for instance: rename struct service to struct rdr), refer to redirects
otherwise (hoststatectl output).
ok reyk@

service -> redirect

ok pyr@

hoststated gets renamed to relayd. easier to type, and actually says
what the daemon does - it is a relayer that pays attention to the status
of pools of hosts; not a status checkers that happens to do some relaying

style(9) for includes

NULL != NONE (but both equal 0)

Add the ability to schedule an immediate check through hoststatectl.
Especially useful when interval is rather long.
I was supposed to commit this before 4.2.

Correct my mail address.

add a "show sessions" command to dump the complete list of running relay
sessions.

teach hoststatectl's parser about reload. the code to handle it is
already there. of course this is a dummy for now.

Add layer 7 functionality to hoststated used for layer 7
loadbalancing, SSL acceleration, general-purpose TCP relaying, and
transparent proxying.

see hoststated.conf(5) and my upcoming article on undeadly.org for
details.

ok to commit deraadt@ pyr@

fix typo.
ok reyk@

add a monitor mode to hoststatectl to continuously report changes in
hoststated.
ok reyk@, "looks nice and clean" niallo@

Add SSL support to hoststated.
with help and OK reyk@
with help and advice by claudio@ and Srebrenko Sehic

Correctly check for missing arguments, as in ospfctl/bgpctl. OK pyr@

adapt to rename

- allow to use host/service/table names instead of Ids in hostatectl.
- minor change of the "hostatectl show" command output
- increase the max service and tag names (max pf tag name size is 64 now!)

thanks to pyr who found a bug in my initial diff

unused variable

knf, spacing

Import hostated, the host status daemon. This daemon will monitor
remote hosts and dynamically alter pf(4) tables and redirection rules
for active server load balancing. The daemon has been written by
Pierre-Yves Ritschard (pyr at spootnik.org) and was formerly known as
"slbd".

The daemon is fully functional but it still needs some work and
cleanup so we don't link it to the build yet. Some TODOs are a
partial rewrite of the check_* routines (use libevent whenever we
can), improvement of the manpages, and general knf and cleanup.

ok deraadt@ claudio@

Clean up the relayd headers with help of include-what-you-use and some
manual review. Based on common practice, relayd.h now includes the
necessary headers for itself.

OK benno@

spacing

Fix reload support in relayd(8) by reimplementing large parts of the
daemon infrastructure. The previous design made it fairly hard to
reload the complex data structures, especially relays and protocols.
One of the reasons was that the privsep'd relayd processes had two
ways of getting their configuration: 1) from memory after forking from
the parent process and 2) and (partially) via imsgs after reload. The
new implementation first forks the privsep'd children before the
parents loads the configuration and sends it via imsgs to them; so it
is only like 2) before. It is based on an approach that I first
implemented for iked(8) and I also fixed many bugs in the code.

Thanks to many testers including dlg@ sthen@ phessler@
ok pyr@ dlg@ sthen@

move some things around to make intentions clear. not really a functional
change. ok claudio

add "log brief" and "log verbose" to change logging verbosity
like several other things in the tree.

ok reyk@ looks fine claudio@

Don't use [] in function arguments when dealing with arrays
we don't know the size of, otherwise gcc >= 4 will error.

ok markus@ deraadt@

also report routers and their host states in relayctl

ok pyr@, jmc@ for man bits

implement statistics for redirections, like the existing statistics
for relays. they can be viewed with the new "relayctl show redirects"
command.

(uses the previous change to pf_table.c to get the statistics)

looks good pyr@

Rename everything which reffered to services refer to rdr for internals
(for instance: rename struct service to struct rdr), refer to redirects
otherwise (hoststatectl output).
ok reyk@

service -> redirect

ok pyr@

hoststated gets renamed to relayd. easier to type, and actually says
what the daemon does - it is a relayer that pays attention to the status
of pools of hosts; not a status checkers that happens to do some relaying

style(9) for includes

NULL != NONE (but both equal 0)

Add the ability to schedule an immediate check through hoststatectl.
Especially useful when interval is rather long.
I was supposed to commit this before 4.2.

Correct my mail address.

add a "show sessions" command to dump the complete list of running relay
sessions.

teach hoststatectl's parser about reload. the code to handle it is
already there. of course this is a dummy for now.

Add layer 7 functionality to hoststated used for layer 7
loadbalancing, SSL acceleration, general-purpose TCP relaying, and
transparent proxying.

see hoststated.conf(5) and my upcoming article on undeadly.org for
details.

ok to commit deraadt@ pyr@

fix typo.
ok reyk@

add a monitor mode to hoststatectl to continuously report changes in
hoststated.
ok reyk@, "looks nice and clean" niallo@

Add SSL support to hoststated.
with help and OK reyk@
with help and advice by claudio@ and Srebrenko Sehic

Correctly check for missing arguments, as in ospfctl/bgpctl. OK pyr@

adapt to rename

- allow to use host/service/table names instead of Ids in hostatectl.
- minor change of the "hostatectl show" command output
- increase the max service and tag names (max pf tag name size is 64 now!)

thanks to pyr who found a bug in my initial diff

unused variable

knf, spacing

Import hostated, the host status daemon. This daemon will monitor
remote hosts and dynamically alter pf(4) tables and redirection rules
for active server load balancing. The daemon has been written by
Pierre-Yves Ritschard (pyr at spootnik.org) and was formerly known as
"slbd".

The daemon is fully functional but it still needs some work and
cleanup so we don't link it to the build yet. Some TODOs are a
partial rewrite of the check_* routines (use libevent whenever we
can), improvement of the manpages, and general knf and cleanup.

ok deraadt@ claudio@