2005-10-29 Paul Jakma <paul.jakma@sun.com>
* (general) RFC3137 stub-router support
* ospfd.h: Add OSPF_OUTPUT_COST_INFINITE define.
(struct ospf_master) Add a OSPF_MASTER_SHUTDOWN flag for
options, to allow shutdown to distinguish between complete
shutdown and shutdown of a subset of ospf instances.
(struct ospf)
Add stub_router_{startup,shutdown_}time, configuration of startup
and shutdown time for stub-router.
Add t_graceful_shutdown struct thread, timer for graceful
shutdown, if needed.
(struct ospf_area) Add stub_router_state - run time state of
stub-router for an area. Add flags for ADMIN, IS and WAS
states.
Add t_stub_router, timer thread to resend router-lsa for an
area.
* ospf_lsa.c: (ospf_link_cost) new simple function to spit out
either the given lnks cost or infinite cost if stub-router is
in effect.
(lsa_link_{ptop,broadcast,virtuallink,ptomp}_set) use
previous function for transit-links.
(ospf_stub_router_timer) timer thread for end of startup stub
router. Change state as required for the area and setup
re-origination of router-lsa.
(ospf_stub_router_check) Check/do whether stub-router should be
enabled, and whether it requires timer to be setup.
(ospf_router_lsa_new) call previous function at top.
(ospf_router_lsa_originate) no external callers, made static.
* ospf_lsa.h: (ospf_router_lsa_originate) removed.
* ospf_main.c: (sigint) make static.
remove call to exit, as ospf_terminate now deals with
exiting.
* ospf_route.c: (ospf_terminate) removed, now in ospfd.c.
* ospf_vty.c: (show_ip_ospf_area) print out state of
stub-router, if active.
(show_ip_ospf) print out configuration of stub-router
support, and details of graceful-shutdown if the timer is
active.
((no)?ospf_max_metric_router_lsa_{admin,startup,shutdown}) new
commands to (de-)?configure stub-router support.
(config_write_stub_router) write out config of stub-router.
(ospf_config_write) call previous.
(ospf_vty_init) install the new stub-router commands.
* ospfd.c: various functions made static.
(ospf_new) Set defaults for stub-router. Graceful shutdown
is made to default on, just to be adventerous.
(ospf_graceful_shutdown_finish) new function, final part of
shutdown.
(ospf_graceful_shutdown_timer) timer thread wrapper for
graceful-shutdown.
(ospf_graceful_shutdown_check) check whether to setup timer
for shutdown or proceed directly to final shutdown.
(ospf_terminate) moved here from ospf_route.c, call
ospf_finish for each instance.
(ospf_finish) renamed to ospf_finish_final and made static.
(ospf_finish) new function, exported wrapper around
ospf_graceful_shutdown_check.
(ospf_finish_final) complete shutdown of an instance.
Add missing TIMER_OFF's of two timer threads.
(ospf_area_free) opaque self lsa timer should be turned off.
8 files changed