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emtpy table
2006-10-15 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_table_stats_walker) NULL deref if table is
empty, bgp_table_top may return NULL, Coverity CID#73.
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2006-09-14 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_process_queue_init) process queue hold time
too high, adds extra memory load. Change to be much lower,
until such time as it's made configurable.
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2006-09-14 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_table_stats_walker) Address space announced
should only count top-level unaggregateable prefixes, to
avoid falling afoul of anti-dodgy-accounting regulations
in various jurisdictions.. ;)
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2006-09-14 Paul Jakma <paul.jakma@sun.com>
* (general) Fix some niggly issues around 'shutdown' and clearing
by adding a Clearing FSM wait-state and a hidden 'Deleted'
FSM state, to allow deleted peers to 'cool off' and hit 0
references. This introduces a slow memory leak of struct peer,
however that's more a testament to the fragility of the
reference counting than a bug in this patch, cleanup of
reference counting to fix this is to follow.
* bgpd.h: Add Clearing, Deleted states and Clearing_Completed
and event.
* bgp_debug.c: (bgp_status_msg[]) Add strings for Clearing and
Deleted.
* bgp_fsm.h: Don't allow timer/event threads to set anything
for Deleted peers.
* bgp_fsm.c: (bgp_timer_set) Add Clearing and Deleted. Deleted
needs to stop everything.
(bgp_stop) Remove explicit fsm_change_status call, the
general framework handles the transition.
(bgp_start) Log a warning if a start is attempted on a peer
that should stay down, trying to start a peer.
(struct .. FSM) Add Clearing_Completed
events, has little influence except when in state
Clearing to signal wait-state can end.
Add Clearing and Deleted states, former is a wait-state,
latter is a placeholder state to allow peers to disappear
quietly once refcounts settle.
(bgp_event) Try reduce verbosity of FSM state-change debug,
changes to same state are not interesting (Established->Established)
Allow NULL action functions in FSM.
* bgp_packet.c: (bgp_write) Use FSM events, rather than trying
to twiddle directly with FSM state behind the back of FSM.
(bgp_write_notify) ditto.
(bgp_read) Remove the vague ACCEPT_PEER peer_unlock, or else
this patch crashes, now it leaks instead.
* bgp_route.c: (bgp_clear_node_complete) Clearing_Completed
event, to end clearing.
(bgp_clear_route) See extensive comments.
* bgpd.c: (peer_free) should only be called while in Deleted,
peer refcounting controls when peer_free is called.
bgp_sync_delete should be here, not in peer_delete.
(peer_delete) Initiate delete.
Transition to Deleted state manually.
When removing peer from indices that provide visibility of it,
take great care to be idempotent wrt the reference counting
of struct peer through those indices.
Use bgp_timer_set, rather than replicating.
Call to bgp_sync_delete isn't appropriate here, sync can be
referenced while shutting down and finishing deletion.
(peer_group_bind) Take care to be idempotent wrt list references
indexing peers.
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2006-09-13 Paul Jakma <paul.jakma@sun.com>
* bgp_aspath.c: (aspath_highest) new, return highest ASN in an
aspath.
* bgp_route.c: (bgp_peer_count_walker) new, do the walk done
in bgp_peer_counts as a thread.
(bgp_peer_counts) move walk to previous and call it via
thread_execute so this RIB walk shows up in thread stats.
(bgp_table_stats) New, gather some statistics for a given
RIB.
(bgp_table_stats_walker) New, RIB walker thread for former.
(bgp_table_stats_vty) Parsing front-end for 'show bgp ...',
useful model for future rationalisation of 'show ... bgp'.
(bgp_route_init) Add new RIB stats commands.
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2006-09-06 Paul Jakma <paul.jakma@sun.com>
* (general) Squash any and all prefix-count issues by
abstracting route flag changes, and maintaining count as and
when flags are modified (rather than relying on explicit
modifications of count being sprinkled in just the right
places throughout the code).
* bgp_route.c: (bgp_pcount_{dec,inc}rement) removed.
(bgp_pcount_adjust) new, update prefix count as
needed for a given route.
(bgp_info_{uns,s}et_flag) set/unset a BGP_INFO route status
flag, calling previous function when appropriate.
(general) Update all set/unsets of flags to use previous.
Remove pcount_{dec,inc}rement calls.
No need to unset BGP_INFO_VALID in places where
bgp_info_delete is called, it does that anyway.
* bgp_{damp,nexthop}.c: Update to use bgp_info_{un,}set_flag.
* bgp_route.h: Export bgp_info_{un,}set_flag.
Add a 'meta' BGP_INFO flag, BGP_INFO_UNUSEABLE.
Move BGP_INFO_HOLDDOWN macro to here from bgpd.h
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2006-09-03 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: Add 'show ... bgp ... <neighbour> prefix-count'
commands, to provide detailed counts of prefixes for a peer.
Informative, and should help pin down to pfxcnt drift
problems.
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2006-05-12 Paul Jakma <paul.jakma@sun.com>
* bgp_aspath.{c,h}: (aspath_print_vty) take a format string,
so as to reduce burden on callers, all in bgp_route.c
* bgp_route.c: (route_vty_out{,tmp}) Update to match
aspath_print_vty, simplifying checks needed to get spacing
right. CID #4,#5.
({damp,flap}_route_vty_out) Ditto, CID #9, #10
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2006-05-12 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_static_update_rsclient) Remove useless NULL
check, code already assumes bgp_static can not be NULL,
fixes CID #6.
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2006-05-12 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_static_update_main) Remove useless NULL
check, code already assumes bgp_static can not be NULL,
fixes CID #7.
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2006-05-08 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_afi_node_get) given table should never be
NULL, check/assert this.
(bgp_static_update) Bug #240. Rsclients should only be passed
the static update if they are configured for the afi,safi.
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2006-05-04 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (general) Fix logical bug in clearing, noted
by Chris Caputo in [quagga-users 6728] - clearing depended on
at least one route being added to workqueue, in order for
workqueue completion function to restart FSM. However, if no
routes are cleared, then the completion function never is
called, it needs to be called manually if the workqueue
didn't get scheduled.
Finally, clearing is per-peer-session, not per AFI/SAFI, so
the FSM synchronisation should be in bgp_clear_route_table.
(bgp_clear_route_table) Wrong place for FSM/clearing
synchronisation, move to..
(bgp_clear_route) FSM/clearing synchronisation should be
here.
If no routes were cleared, no workqueue scheduled, call
the completion func to ensure FSM kicks off again.
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2006-03-03 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_clear_node_complete) Doh. When clearing
is complete we need to kick off FSM again.
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2006-02-21 Paul Jakma <paul.jakma@sun.com>
* bgpd.h: move the clear_node_queue to be peer specific.
Add a new peer status flag, PEER_STATUS_CLEARING.
* bgp_table.h: (struct bgp_table) Add fields to record afi,
safi of the table.
(bgp_table_init) Take afi and safi to create table for.
* bgp_table.c: (bgp_table_init) record the afi and safi.
* bgp_nexthop.c: Update all calls to bgp_table_init.
* bgp_vty.c: ditto.
* bgpd.c: ditto.
* bgp_fsm.c: (bgp_timer_set) dont bring up a session which is
clearing.
* bgp_route.c: (general) Update all bgp_table_init calls.
(bgp_process_{rsclient,main}) clear_node is serialised
via PEER_STATUS_CLEARING and fsm now.
(struct bgp_clear_node_queue) can be removed. struct bgp_node
can be the queue item data directly, as struct peer can be
kept in the new wq global user data and afi/safi can be
retrieved via bgp_node -> bgp_table.
(bgp_clear_route_node) fix to get peer via wq->spec.data,
afi/safi via bgp_node->bgp_table.
(bgp_clear_node_queue_del) no more item data to delete, only
unlock the bgp_node.
(bgp_clear_node_complete) only need to unset CLEARING flag
and unlock struct peer.
(bgp_clear_node_queue_init) queue attaches to struct peer
now. record peer name as queue name.
(bgp_clear_route_table) If queue transitions to active,
serialise clearing by setting PEER_STATUS_CLEARING rather
than plugging process queue, and lock peer while queue
active.
Update to pass only bgp_node as per-queue-item specific data.
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2006-02-18 Paul Jakma <paul.jakma@sun.com>
* bgp_route.c: (bgp_announce_check) trivial, move declaration
of two local variables into the only block where they are
used, to aid the reader.
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2006-02-05 Paul Jakma <paul.jakma@sun.com>
* bgp_route.h: Add BGP_INFO_COUNTED to track whether
prefix has been counted or not.
* bgp_route.c: (bgp_pcount_{inc,dec}rement) new helpers, to
centralise inc/dec of prefix-count,
(bgp_rib_remove) Remove pcount decrement, use helper.
(bgp_rib_withdraw) ditto, additionally use previous function
too.
(bgp_update_main) Use pcount helpers.
(bgp_clear_route_node) ditto, aslo REMOVED routes don't need
clearing.
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2006-02-02 Paul Jakma <paul.jakma@sun.com>
* workqueue.h: (struct work_queue) Remove the delay field.
It served no purpose and just introduced bad behaviour.
Should be excised before its allowed to escape into 1.0.
This removes need for the 'flood' and runs_since_clear
fields.
* workqueue.c: (general) excise delay factor between queue
runs, hence the 'flood' crap too.. See above.
* bgp_route.c: (bgp_{clear_node,process}_queue_init) delay
field is removed from workqueue spec.
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2006-01-19 Paul Jakma <paul.jakma@sun.com>
* (general) various miscellaneous compiler warning fixes.
Remove redundant break statements from switch clauses
which return.
return from main, not exit, cause it annoys SOS.
Remove stray semi-colons which cause empty-statement
warnings.
* zebra/main.c: (sighup) remove private declaration of external
function.
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* zebra_rib.c: (rib_process) convert to new workqueue specs and
shut up gcc, which complains about cast from void via
function parameters, for some dumb reason. Do the cast
inside the function instead.
(rib_queue_qnode_del) ditto.
(rib_queue_init) no need for the casts anymore.
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* Makefile.am: bgpd shouldn't list libgp's sources as its own.
Use LDADD.
* bgp_aspath.h:
(struct assegment) New struct, abstract representation of a
list of AS_PATH segments and the contained ASNs.
(struct aspath) Remove the raw-data related
fields, reference the abstract struct assegment instead.
Remove several other computed fields, it's just a
headache to maintain them and they're cheap to compute from
struct assegment.
(aspath_parse) parse a stream, not a pointer to raw data.
(aspath_count_{hops,confeds,size}) helpers to access
information formerly directly contained in struct aspath.
(aspath_snmp_pathseg) Helper for SNMP, BGP MIB wants
to be able to output hex representation of raw data.
* bgp_aspath.c: (general) partial-rewrite. Store aspath data
as an abstract singly-linked list of abstract segments,
rather than storing the raw data, and parsing it each and
every time. Remove several count/size fields which are cheap
to compute from the abstract segment structure.
(global) Include stream.h, needed for aspath_parse, and
others. Couple of helper macros added.
(struct assegment_header) Just the header, and only the
header.
(assegment_data_{new,free}) convenience functions for
AS_SEG_DATA allocation, the dynamic, per-segment array of
ASNs.
(assegment_{new,free,free_all,dup,dup_all}) convenience
functions for creating struct assegments. The _all forms will
follow the entire chain of segments from the given segment.
(assegment_prepend_asns) new function, prepend an ASN N times
to segment.
(assegment_append_asns) Append a list (array) of ASNs to
segment.
(int_cmp) convenience function for the aspath hash.
(assegment_normalise) new function. Normalise the given
segment chain to meet expectations of Quagga, and to
eliminate differing raw representations of the same paths.
Merge 'runs' of SEQUENCEs into one segment as our internal
segment is not limited by the protocol AS_PATH segment
length. Sort ASNs in SETs.
(aspath_new) Take void argument to quell warnings. Use the
assegment convenience functions.
(assegment_count_{asns,confeds,hops}) new functions to
compute at runtime values previously held in struct aspath.
(aspath_size) ditto.
(aspath_make_str_count) rewritten to stringify new
representation, and to be slightly easier to understand
hopefully.
(aspath_str_update) convenience function, update the aspath
str. Should investigate removing maintained string from
struct aspath, just run-time compute it, as per other fields.
It's just a maintenance headache, would save noticeable
amount of RAM with possibly not much extra run-time cost.
(aspath_dup) use the assegment dup functions.
(aspath_hash_alloc) Take void * argument to satisfy gcc. Use
the proper helper functions to dup data.
(assegments_parse) new function. parse raw AS_PATH data into
struct assegments. Normalise and return the head of the list.
(aspath_parse) Parse a stream, not pointer to raw data and
use assegments_parse to do it.
(assegment_data_put) Write out a single segment data in protocol
form to stream.
(assegment_header_put) ditto but for segment header.
(aspath_put) new function. As per previous but for an entire
struct aspath.
(aspath_snmp_pathseg) wrapper around aspath_put for
bgp_snmp.c. Uses a static buffer sadly.
(aspath_aggregate_as_set_add) rewritten to use assegments.
(aspath_aggregate) ditto
(aspath_{firstas,loop,private_as}_check) ditto
(aspath_{merge,prepend,add_one_as}) ditto
(aspath_cmp_left{_confed}) ditto
(aspath_delete_confed_seq) ditto, plus fixed to properly
delete all leading confed segments.
(aspath_as_add) Just use assegment_append_asns.
(aspath_segment_add) updated to use assegments.
(enum as_token) Add values for confeds
(aspath_gettoken) Add support for confeds
(aspath_str2aspath) ditto
(aspath_key_make) updated to use as_segments. Also, add
segment type into the hash value as appropriate.
(aspath_cmp) updated to use as_segments.
(aspath_print) don't segfault on NULL argument.
* bgp_attr.c: (bgp_attr_aspath) aspath_parse wants the stream
now. No need for manual forwarding of stream.
(bgp_packet_attribute) empty aspath is now denoted by NULL
segment field, length is gone.
Use aspath_size() to determine size.
(bgp_attr_init) Fix declaration, explicitely specify void
arg.
(bgp_dump_routes_attr) Use aspath_size() to determine size.
* bgp_route.c: (bgp_info_cmp) use the aspath_count_* functions.
(bgp_rib_withdraw) remove unused variable. Use
aspath_count_hops.
* bgp_snmp.c: (bgp4PathAttrTable) raw data is gone, use
aspath_snmp_pathseg to get the representation.
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introduced long time ago with route server patch. Hopefully
it's last case to fix - route-server client not in peer group.
[backport candidate]
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* bgp_route.h: (struct bgp_info) add a new flag, BGP_INFO_REMOVED.
BGP_INFO_VALID is already overloaded, don't care to do same thing
to STALE or HISTORY.
* bgpd.h: (BGP_INFO_HOLDDOWN) Add INFO_REMOVED to the macro, as a
route which should generally be ignored.
* bgp_route.c: (bgp_info_delete) Just set the REMOVE flag, rather
than doing actual work, so that bgp_process (called directly,
or indirectly via the scanner) can catch withdrawn routes.
(bgp_info_reap) Actually remove the route, what bgp_info_delete
used to do, only for use by bgp_process.
(bgp_best_selection) reap any REMOVED routes, other than the old
selected route.
(bgp_process_rsclient) reap the old-selected route, if appropriate
(bgp_process_main) ditto
(bgp_rib_withdraw, bgp_rib_remove) make them more consistent with
each other. Don't play games with the VALID flag, bgp_process
is async now, so it didn't make a difference anyway.
Remove the 'force' argument from bgp_rib_withdraw, withdraw+force
is equivalent to bgp_rib_remove. Update all its callers.
(bgp_update_rsclient) bgp_rib_withdraw and force set is same as
bgp_rib_remove.
(route_vty_short_status_out) new helper to print the leading
route-status string used in many command outputs. Consolidate.
(route_vty_out, route_vty_out_tag, damp_route_vty_out,
flap_route_vty_out) use route_vty_short_status_out rather than
duplicate.
(route_vty_out_detail) print state of REMOVED flag.
(BGP_SHOW_SCODE_HEADER) update for Removed flag.
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* (global) The great bgpd extern and static'ification.
* bgp_routemap.c: remove unused ROUTE_MATCH_ASPATH_OLD code
(route_set_metric_compile) fix u_int32_t to ULONG_MAX comparison
warnings.
* bgp_route.h: (bgp_process, bgp_withdraw, bgp_update) export these
used by various files which had their own private declarations,
in the case of mplsvpn - incorrect.
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* bgpd/(general) refcount struct peer and bgp_info, hence allowing us
add work_queues for bgp_process.
* bgpd/bgp_route.h: (struct bgp_info) Add 'lock' field for refcount.
Add bgp_info_{lock,unlock} helper functions.
Add bgp_info_{add,delete} helpers, to remove need for
users managing locking/freeing of bgp_info and bgp_node's.
* bgpd/bgp_table.h: (struct bgp_node) Add a flags field, and
BGP_NODE_PROCESS_SCHEDULED to merge redundant processing of
nodes.
* bgpd/bgp_fsm.h: Make the ON/OFF/ADD/REMOVE macros lock and unlock
peer reference as appropriate.
* bgpd/bgp_damp.c: Remove its internal prototypes for
bgp_info_delete/free. Just use bgp_info_delete.
* bgpd/bgpd.h: (struct bgp_master) Add work_queue pointers.
(struct peer) Add reference count 'lock'
(peer_lock,peer_unlock) New helpers to take/release reference
on struct peer.
* bgpd/bgp_advertise.c: (general) Add peer and bgp_info refcounting
and balance how references are taken and released.
(bgp_advertise_free) release bgp_info reference, if appropriate
(bgp_adj_out_free) unlock peer
(bgp_advertise_clean) leave the adv references alone, or else
call bgp_advertise_free cant unlock them.
(bgp_adj_out_set) lock the peer on new adj's, leave the reference
alone otherwise. lock the new bgp_info reference.
(bgp_adj_in_set) lock the peer reference
(bgp_adj_in_remove) and unlock it here
(bgp_sync_delete) make hash_free on peer conditional, just in
case.
* bgpd/bgp_fsm.c: (general) document that the timers depend on
bgp_event to release a peer reference.
(bgp_fsm_change_status) moved up the file, unchanged.
(bgp_stop) Decrement peer lock as many times as cancel_event
canceled - shouldnt be needed but just in case.
stream_fifo_clean of obuf made conditional, just in case.
(bgp_event) always unlock the peer, regardless of return value
of bgp_fsm_change_status.
* bgpd/bgp_packet.c: (general) change several bgp_stop's to BGP_EVENT's.
(bgp_read) Add a mysterious extra peer_unlock for ACCEPT_PEERs
along with a comment on it.
* bgpd/bgp_route.c: (general) Add refcounting of bgp_info, cleanup
some of the resource management around bgp_info. Refcount peer.
Add workqueues for bgp_process and clear_table.
(bgp_info_new) make static
(bgp_info_free) Ditto, and unlock the peer reference.
(bgp_info_lock,bgp_info_unlock) new exported functions
(bgp_info_add) Add a bgp_info to a bgp_node in correct fashion,
taking care of reference counts.
(bgp_info_delete) do the opposite of bgp_info_add.
(bgp_process_rsclient) Converted into a work_queue work function.
(bgp_process_main) ditto.
(bgp_processq_del) process work queue item deconstructor
(bgp_process_queue_init) process work queue init
(bgp_process) call init function if required, set up queue item
and add to queue, rather than calling process functions directly.
(bgp_rib_remove) let bgp_info_delete manage bgp_info refcounts
(bgp_rib_withdraw) ditto
(bgp_update_rsclient) let bgp_info_add manage refcounts
(bgp_update_main) ditto
(bgp_clear_route_node) clear_node_queue work function, does
per-node aspects of what bgp_clear_route_table did previously
(bgp_clear_node_queue_del) clear_node_queue item delete function
(bgp_clear_node_complete) clear_node_queue completion function,
it unplugs the process queues, which have to be blocked while
clear_node_queue is being processed to prevent a race.
(bgp_clear_node_queue_init) init function for clear_node_queue
work queues
(bgp_clear_route_table) Sets up items onto a workqueue now, rather
than clearing each node directly. Plugs both process queues to
avoid potential race.
(bgp_static_withdraw_rsclient) let bgp_info_{add,delete} manage
bgp_info refcounts.
(bgp_static_update_rsclient) ditto
(bgp_static_update_main) ditto
(bgp_static_update_vpnv4) ditto, remove unneeded cast.
(bgp_static_withdraw) see bgp_static_withdraw_rsclient
(bgp_static_withdraw_vpnv4) ditto
(bgp_aggregate_{route,add,delete}) ditto
(bgp_redistribute_{add,delete,withdraw}) ditto
* bgpd/bgp_vty.c: (peer_rsclient_set_vty) lock rsclient list peer
reference
(peer_rsclient_unset_vty) ditto, but unlock same reference
* bgpd/bgpd.c: (peer_free) handle frees of info to be kept for lifetime
of struct peer.
(peer_lock,peer_unlock) peer refcount helpers
(peer_new) add initial refcounts
(peer_create,peer_create_accept) lock peer as appropriate
(peer_delete) unlock as appropriate, move out some free's to
peer_free.
(peer_group_bind,peer_group_unbind) peer refcounting as
appropriate.
(bgp_create) check CALLOC return value.
(bgp_terminate) free workqueues too.
* lib/memtypes.c: Add MTYPE_BGP_PROCESS_QUEUE and
MTYPE_BGP_CLEAR_NODE_QUEUE
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* bgp_aspath.[ch], bgp_route.c, bgp_vty.c, bgpd.[ch]: Allow to enable
the length of confederation path segments to be included during the
as-path length check in the best path decision.
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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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no particular afi/safi configured.
[backport candidate]
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work again.
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community-list cleanup.
[merge from GNU Zebra]
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-> "disable-connected-check".
[merge from GNU Zebra]
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bgpd.[ch]: Add BGP_INFO_STALE flag and end-of-rib support. "bgp
graceful-restart" commands added. Show numbers of individual
messages in "show ip bgp neighbor" command. Final pieces of graceful
restart.
[merge from GNU Zebra]
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maximum-prefix limit" feature support.
[merge from GNU Zebra]
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* buffer.h: Fix comment on buffer_getstr to reflect that it now
uses XMALLOC.
* buffer.c: (buffer_getstr) Use XMALLOC(MTYPE_TMP) instead of malloc.
* filter.c: (access_list_remark,ipv6_access_list_remark) Use
argv_concat instead of buffer_getstr.
* if.c: (interface_desc) Use argv_concat instead of buffer_getstr.
* plist.c: (ip_prefix_list_description,ipv6_prefix_list_description)
Use argv_concat instead of buffer_getstr.
* bgp_filter.c: (ip_as_path,no_ip_as_path) Use argv_concat instead
of buffer_getstr.
* bgp_route.c: (bgp_show_regexp) Fix memory leak: need to free string
returned by buffer_getstr.
(bgp_show_community) Must use XFREE instead of free on string
returned by buffer_getstr.
* bgp_routemap.c: (set_community) Must use XFREE instead of free
on string returned by buffer_getstr.
* bgp_vty.c: (neighbor_description) Use argv_concat instead of
buffer_getstr.
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if old one is flaged as BGP_INFO_ATTR_CHANGED.
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configured or not. Being not configured is even better reason to
do it.
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* *.c: Change level of debug messages to LOG_DEBUG.
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* vty.h: Remove fields in struct vty that were related to VTY_CONTINUE
capabilities (that were used only in bgpd/bgp_route.c and are now
removed). Also remove some other fields that were not being
used at all.
* vty.c: (vty_execute) Do not test for obsolete status values VTY_START
and VTY_CONTINUE.
(vty_read) Remove calls to vty->output_func since that was part
of the VTY_CONTINUE infrastructure that has been removed.
(vty_flush) Remove code to support VTY_START and VTY_CONTINUE.
(vty_close) Remove code to cancel vty->t_output thread, since that
thread was never actually used.
* bgp_route.c: Remove all code related to VTY_CONTINUE; this feature
is deprecated because the output did not represent a single point
in time. All output needs to be generated inline and buffered
by the library code.
(route_vty_out,route_vty_out_tag,damp_route_vty_out,
flap_route_vty_out) Remove code to count number of lines of output,
since this was only useful for VTY_CONTINUE behavior.
(bgp_show_callback) Removed.
(bgp_show_table) Remove hooks for VTY_CONTINUE callback support.
As a result, there's a new output_arg argument to this function.
Make function static.
(bgp_show) Make function static and add a new output_arg argument.
Change all functions that call bgp_show or bgp_show_table to
pass the new output_arg argument (that used to be passed inside
vty->output_arg).
* bgp_mplsvpn.c: Remove declarations of functions defined in
bgp_route.c; these declarations belong in bgp_route.h.
* bgp_route.h: Declare 3 global functions used in both bgp_route.c
and in bgp_mplsvpn.c.
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* (global) more const'ification and fixups of types to clean up code.
* bgp_mplsvpn.{c,h}: (str2tag) fix abuse. Still not perfect,
should use something like the VTY_GET_INTEGER macro, but without
the vty_out bits..
* bgp_routemap.c: (set_aggregator_as) use VTY_GET_INTEGER_RANGE
(no_set_aggregator_as) ditto.
* bgpd.c: (peer_uptime) fix unlikely bug, where no buffer is
returned, add comments about troublesome return value.
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(at Technical University of Madrid as part of Euro6ix Project)
Enhanced Route Server functionality and Route-Maps:
* bgpd/bgpd.h: Modified 'struct peer' and 'struct bgp_filter' to
support rs-clients. A 'struct bgp_table *rib' has been added to the
first (to mantain a separated RIB for each rs-client) and two new
route-maps have been added to the last (for import/export policies).
Added the following #defines: RMAP_{IN|OUT|IMPORT|EXPORT|MAX},
PEER_RMAP_TYPE_{IMPORT|EXPORT} and BGP_CLEAR_SOFT_RSCLIENT.
* bgpd/bgpd.c: Modified the functions that create/delete/etc peers in
order to consider the new fields included in 'struct peer' for
supporting rs-clients, i.e. the import/export route-maps and the
'struct bgp_table'.
* bgpd/bgp_route.{ch}: Modified several functions related with
receiving/sending announces in order to support the new Route Server
capabilities.
Function 'bgp_process' has been reorganized, creating an auxiliar
function for best path selection ('bgp_best_selection').
Modified 'bgp_show' and 'bgp_show_route' for displaying information
about any RIB (and not only the main bgp RIB).
Added commands for displaying information about RS-clients RIBs:
'show bgp rsclient (A.B.C.D|X:X::X:X)', 'show bgp rsclient
(A.B.C.D|X:X::X:X) X:X::X:X/M', etc
* bgpd/bgp_table.{ch}: The structure 'struct bgp_table' now has two
new fields: type (which can take the values BGP_TABLE_{MAIN|RSCLIENT})
and 'void *owner' which points to 'struct bgp' or 'struct peer' which
owns the table.
When creating a new bgp_table by default 'type=BGP_TABLE_MAIN' is set.
* bgpd/bgp_vty.c: The commands 'neighbor ... route-server-client' and
'no neighbor ... route-server-client' now not only set/unset the flag
PEER_FLAG_RSERVER_CLIENT, but they create/destroy the 'struct
bgp_table' of the peer. Special actions are taken for peer_groups.
Command 'neighbor ... route-map WORD (in|out)' now also supports two
new kinds of route-map: 'import' and 'export'.
Added commands 'clear bgp * rsclient', etc. These commands allow a new
kind of soft_reconfig which affects only the RIB of the specified
RS-client.
Added commands 'show bgp rsclient summary', etc which display a
summary of the rs-clients configured for the corresponding address
family.
* bgpd/bgp_routemap.c: A new match statement is available,
'match peer (A.B.C.D|X:X::X:X)'. This statement can only be used in
import/export route-maps, and it matches when the peer who announces
(when used in an import route-map) or is going to receive (when used
in an export route-map) the route is the same than the one specified
in the statement.
For peer-groups the statement matches if the specified peer is member
of the peer-group.
A special version of the command, 'match peer local', matches with
routes originated by the Route Server (defined with 'network ...',
redistributed routes and default-originate).
* lib/routemap.{ch}: Added a new clause 'call NAME' for use in
route-maps. It jumps into the specified route-map and when it returns
the first route-map ends if the called RM returns DENY_MATCH, or
continues in other case.
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* bgp_packet.c: (bgp_collision_detect) Send NOTIFY on new socket
if that is connection we're closing.
(bgp_read) invalid marker check applies to KEEPALIVE too.
* bgp_route.c: Ignore multicast NRLI, dont send NOTIFY.
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* type mismatch fixes
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* bgp_route.c: fix UNH IOL BGP-4.1.12f
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* Revert the attempted clean-up of the dummy peer hack, reverts
patchsets 435 (see 2004-02-17 below) and 456.
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* bgpd.h: update cease subcodes to draft-ietf-idr-cease-subcode-05
* bgpd.h, bgpd.c, bgp_route.c, bgp_route.h: fix UNH IOL BGP-4.1.6a
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* bgpd.h: (bgp_peer) add fd_local and fd_accept
file descriptor's, fd becomes a pointer to one of these.
* bgpd.c: (global) adjust for fact that fd is now a pointer.
(peer_create_accept) removed.
* bgp_route.c: (global) adjust for change of peer fd to pointer
* bgp_packet.c: (bgp_collision_detect) adjust and remove the
"replace with other peer" hack.
* bgp_network.c: (bgp_accept) Remove the dummy peer hack.
Update peer->fd_accept instead.
(global) Adjust fd references - now a pointer.
* bgp_fsm.c: (global) adjust peer fd to pointer.
(bgp_connection_stop) new function, to stop connection.
(global) adjust everything which closed peer fd to use
bgp_connection_stop().
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* bgpd/bgp_route.c: Delete some extraneous whitespace. Credit to
a person on #quagga whose name I unfortunately can not recall.
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* Better 'show bgp' support for views (eg ipv6), see [quagga-dev 238]
* bgpd/bgp_route.c: (bgp_show) Take a struct bgp argument instead of
view string.
(bgp_show_neighbor_route) Take a struct peer argument instead of
ip string.
(peer_adj_routes) ditto
(show_adj_routes) ditto
(peer_lookup_in_view) new function to return appropriate struct
peer for a given view string.
(misc) Fixup all calls to above to reflect new calling arguments,
and use peer_lookup_in_view as needed. Additional commands
installed to use expanded functionality above, existing commands
modified to suit as well.
* bgpd/bgp_vty.c: 2 new aliases.
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* lib/zebra.h: define UINT32_MAX for those systems which do not
provide it.
* bgp_attr.h: define BGP_MED_MAX.
* bgp_route.c: update defines/constants to BGP_MED_MAX.
* bgp_routemap.c: ditto. clean up route_match_metric_compile
slightly to avoid unneccesary XMALLOC.
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* bgpd/bgp_route.c: Unrevert the revert of the possible first fix
for maximum-prefix.
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