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2006-08-25 Paul Jakma <paul.jakma@sun.com>
* (general) Bug #134. Be more robust to backward time changes,
use the newly added libzebra time functions.
In most cases: recent_time -> recent_relative_time()
gettimeofday -> quagga_gettime (QUAGGA_CLK_MONOTONIC, ..)
time -> quagga_time.
(ospf_make_md5_digest) time() call deliberately not changed.
(ospf_external_lsa_refresh) remove useless gettimeofday, LSA
tv_orig time was already set in ospf_lsa_new, called via
ospf_external_lsa_new.
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2006-05-11 Paul Jakma <paul.jakma@sun.com>
* ospf_route.c: (ospf_route_delete_same_ext) Fix deref before
NULL check by moving into check-protected block, fix CID #49.
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2006-04-24 Paul Jakma <paul.jakma@sun.com>
* (general) More Virtual-link fixes, again with much help in
testing / debug from Juergen Kammer. Primarily in SPF.
* ospf_spf.h: Add guard. ospf_interface.h will include this
header.
* ospf_interface.h: Modify ospf_vl_lookup definition to take
struct ospf as argument, so as to allow for NULL area
argument.
(struct ospf_vl_data) Remove out_oi, instead add a struct
vertex_nexthop, to use as initial nexthop for backbone paths
through a vlink.
* ospf_interface.c: (ospf_vl_lookup) Modified to allow
NULL area to be passed to indicate "any" (first) area.
Add extra debug.
(ospf_vl_set_params) vl_oi -> nexthop. Add extra debug.
(ospf_vl_up_check) Fix debug, inet_ntoa returns a static
buffer..
* ospf_route.c: (ospf_intra_add_router) Vlinks dont go through
backbone, don't bother checking.
* ospf_spf.c: (static struct list vertex_list) Record vertices
that will need to be freed.
(cmp) Order network before router vertices, as required,
wasn't implemented.
(vertex_nexthop_free) Mild additional robustness check.
(vertex_parent_free) Take void argument, as this function
is passed as list deconstructor for vertex parent list.
(ospf_vertex_new) More debug. Set deconstructor for parent
list. Track allocated vertices on the vertex_list.
(ospf_vertex_free) Get rid of the tricky recursive cleanup of
vertices. Now frees only the given vertex.
(ospf_vertex_add_parent) Fix assert.
(ospf_nexthop_calculation) Fix calculation of nexthop for
VLink vertices, lookup the vl_data and use its previously
recorded nexthop information.
(ospf_spf_calculate) Vertices are freed simply by deleting
vertex_list nodes and letting ospf_vertex_free as deconstructor
work per-node.
(ospf_spf_calculate_timer) Trivial optimisation, leave
backbone SPF calculation till last to reduce SPF churn on
VLink updates.
* ospf_vty.c: (ospf_find_vl_data) update call to ospf_vl_lookup
(no_ospf_area_vlink_cmd) ditto.
(show_ip_ospf_interface_sub) For Vlinks, the peer address is
more interesting than the output interface.
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* (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.
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* (general) SPF memory management cleanup and fix for rare
double-free bug.
* ospf_spf.h: (struct vertex_parent) New struct to hold parent
specific data, eg the backlink and the parent vertex pointer,
and point to the appropriate general struct vertex_nexthop.
(struct vertex_nexthop) remove parent vertex pointer, so
this struct can be shared across vertices.
(struct vertex) rename list child to list children. Remove
list of nexthops, replace with list of vertex_parents.
* ospf_spf.c: (update_stat) trivial, remove cast from void *.
(vertex_nexthop_new) remove init of parent - field is gone
from struct vertex_nexthop.
(ospf_canonical_nexthops_free) Remove the canonical
vertex_nexthop memory objects. These are the vertex_nexthops
attached to the first level of router vertices from the root.
(vertex_parent_new) new function, create a vertex_parent.
(vertex_parent_free) ditto, but free it.
(ospf_vertex_new) Update to match changes to struct vertex.
(ospf_vertex_free) Recursively free a struct vertex and its
children. The parent list is used as a reference count.
vertex_nexthops must be free seperately, if required.
(ospf_vertex_dump) update to match struct vertex changes.
Print out backlink of parents too.
(ospf_vertex_add_parent) ditto.
(ospf_lsa_has_link) update comment.
(ospf_nexthop_add_unique) removed, not needed anymore.
(ospf_nexthop_merge) ditto.
(ospf_spf_consider_nexthop) renamed to ospf_spf_add_parent.
Simplified to just create vertex_parent and add it.
(ospf_spf_flush_parents) new function, flush out the parent
list.
(ospf_nexthop_calculation) Take the relevant route_lsa_link
as an argument, which simplifies things and removes the need
for the hack in ospf_nexthop_add_unique - ospf_spf_next
already knew exactly which link the cost calculated was for.
Update to match struct vertex changes too.
(ospf_spf_next) Don't create a vertex for W unnecessarily, if
it's there's a vertex already created for W, use it, and
hence there's no need to free it either.
Update some manipulation/comparisons of distance to match.
Flush the parent list if a lower cost path is found.
(ospf_spf_route_free) unused, removed.
(ospf_spf_dump) match the struct vertex changes, and dump the
ifname if possible.
(ospf_spf_calculate) At end of SPF, free the canonical nexthops
and call ospf_vertex_free on the root vertex to free the
entire tree.
* ospf_interface.c: (ospf_vl_set_params) match struct vertex
changes.
* ospf_route.c: (ospf_intra_route_add) ditto
(ospf_route_copy_nexthops_from_vertex) ditto
* memtypes.c: (memory_list_ospf) Add MTYPE_OSPF_VERTEX_PARENT.
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* (general) extern and static qualifiers added.
unspecified arguments in definitions fixed, typically they should
be 'void'.
function casts added for callbacks.
Guards added to headers which lacked them.
Proper headers included rather than relying on incomplete
definitions.
gcc noreturn function attribute where appropriate.
* ospf_opaque.c: remove the private definition of ospf_lsa's
ospf_lsa_refresh_delay.
* ospf_lsa.h: export ospf_lsa_refresh_delay
* ospf_packet.c: (ospf_make_md5_digest) make *auth_key const,
correct thing to do - removes need for the casts later.
* ospf_vty.c: Use vty.h's VTY_GET_INTEGER rather than ospf_vty's
home-brewed versions, shuts up several warnings.
* ospf_vty.h: remove VTY_GET_UINT32. VTY_GET_IPV4_ADDRESS and
VTY_GET_IPV4_PREFIX moved to lib/vty.h.
* ospf_zebra.c: (ospf_distribute_list_update_timer) hacky
overloading of the THREAD_ARG pointer should at least use
uintptr_t.
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* (global): Fix up list loops to match changes in lib/linklist,
and some basic auditing of usage.
* configure.ac: define QUAGGA_NO_DEPRECATED_INTERFACES
* HACKING: Add notes about deprecating interfaces and commands.
* lib/linklist.h: Add usage comments.
Rename getdata macro to listgetdata.
Rename nextnode to listnextnode and fix its odd behaviour to be
less dangerous.
Make listgetdata macro assert node is not null, NULL list entries
should be bug condition.
ALL_LIST_ELEMENTS, new macro, forward-referencing macro for use
with for loop, Suggested by Jim Carlson of Sun.
Add ALL_LIST_ELEMENTS_RO for cases which obviously do not need the
"safety" of previous macro.
LISTNODE_ADD and DELETE macros renamed to ATTACH, DETACH, to
distinguish from the similarly named functions, and reflect their
effect better.
Add a QUAGGA_NO_DEPRECATED_INTERFACES define guarded section
with the old defines which were modified above,
for backwards compatibility - guarded to prevent Quagga using it..
* lib/linklist.c: fix up for linklist.h changes.
* ospf6d/ospf6_abr.c: (ospf6_abr_examin_brouter) change to a single
scan of the area list, rather than scanning all areas first for
INTER_ROUTER and then again for INTER_NETWORK. According to
16.2, the scan should be area specific anyway, and further
ospf6d does not seem to implement 16.3 anyway.
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* *.c: Change level of debug messages to LOG_DEBUG.
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support of more significant changes not in this commit. The last item
in the ChangeLog below may be needed for p2mp to work correctly.
2004-08-31 David Wiggins <dwiggins@bbn.com>
* hash.c (hash_iterate): Save next pointer before calling
procedure, so that iteration works even if the called procedure
deletes the hash backet.
* linklist.h (listtail): new macro, not yet used.
2004-08-31 David Wiggins <dwiggins@bbn.com>
* ospf_spf.c (ospf_spf_calculate): Many more comments and debug
print statements. New function ospf_vertex_dump used in debugging.
2004-08-31 David Wiggins <dwiggins@bbn.com>
* ospf_spf.h (struct vertex): Comments for flags and structure members.
2004-08-31 David Wiggins <dwiggins@bbn.com>
* ospf_route.c: When finding an alternate route, log cost as well.
2004-08-31 David Wiggins <dwiggins@bbn.com>
* ospf_interface.c (ospf_lookup_if_params): Initialize af in
struct prefix allocated on stack.
2004-08-31 David Wiggins <dwiggins@bbn.com>
* ospf_packet.c (ospf_ls_ack_send_delayed): In p2mp mode, send
acks to AllSPFRouters, rather than All-DR.
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from vtysh ([quagga-dev 932]).
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* ospfd/ospf_route.c: Fixup extraneous list_delete which was causing
SEGVs of ospfd.
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* Add missing 'i' to getopts, short form of --pid_file.
see http://bugzilla.quagga.net/show_bug.cgi?id=25
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* ospf_route.c: delete routes generated from AS-External routes if
there is a inter/intra route. Adds ospf_route_delete_same_ext()
which prunes external routes, which is called from
ospf_route_install() when new route table is installed.
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