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* ospf_{ism,network}.c: Certain oft-repeated but trivial messages should be
debug log level, not info, to avoid spamming 'terminal monitor'
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* ospf_ism.c (ospf_dr_eligible_routers) should test for priority > 0 instead
of != 0 as ospf_nbr_new () initially sets prio to -1
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2008-08-15 Paul Jakma <paul.jakma@sun.com>
* */*: Fix various problems flagged by Sun Studio compiler.
- '<qualifier> <storage>' obsolescent in declarations
- empty statements (';' after ALIAS definitions)
- implicit declarations (e.g printstack in lib/log.c)
- "\%" in printf string instead of "%%"
- loops that return on the first iteration (legitimately, but
compiler can't really know), e.g. bgp_routemap.c
- internal declarations which mask prototypes.
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2006-07-26 Paul Jakma <paul.jakma@sun.com>
* ospf_lsa.{c,h}: (ospf_lsa_unlock) Change to take a double pointer
to the LSA to be 'unlocked', so that, if the LSA is freed, the
callers pointer to the LSA can be NULLed out, allowing any further
use of that pointer to provoke a crash sooner rather than later.
* ospf_*.c: (general) Adjust callers of ospf_lsa_unlock to match
previous. Try annotate 'locking' somewhat to show which 'locks'
are protecting what LSA reference, if not obvious.
* ospf_opaque.c: (ospf_opaque_lsa_install) Trivial: remove useless
goto, replace with return.
* ospf_packet.c: (ospf_make_ls_ack) Trivial: merge two list loops,
the dual-loop predated the delete-safe list-loop macro.
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2006-05-12 Paul Jakma <paul.jakma@sun.com>
* ospf_ism.c: (ism_change_state) NULL check on oi->area is
useless, it's always valid. Only possibility where it
couldn't be is if there is a race between abr_task and
cleaning up oi's, in which case a NULL check here isn't going
to do anything. Fixes CID #15.
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* (general) OSPF fast, sub-second hello and 1s dead-interval
support. A warning fix. Millisec support for ospf_timer_dump.
Change auto-cost ref-bandwidth to add a comment to write out
of config, rather than printing annoying messages to vty on
startup.
* ospf_dump.c: (ospf_timer_dump) Print out milliseconds too.
Callers typically specify a length of 9, so most see
millisecs unless they specify the additional length.
* ospf_interface.h: (struct ospf_interface) new interface param,
fast_hello.
* ospf_interface.c: (ospf_if_table_lookup) add brackets,
gcc warning fix.
(ospf_new_if_params) Initialise fast_hello param.
(ospf_free_if_params) Check whether fast_hello is configured.
(ospf_if_new_hook) set fast_hello to default.
* ospf_ism.h: Wrap OSPF_ISM_TIMER_ON inside do {} while (0) to
prevent funny side-effects from its if statement when this
macro is used conditionally by other macros.
(OSPF_ISM_TIMER_MSEC_ON) new macro, set in milliseconds.
(OSPF_HELLO_TIMER_ON) new macro to set hello timer according
to whether fast_hello is set.
* ospf_ism.c: Update all setting of the hello timer to use
either OSPF_ISM_TIMER_MSEC_ON or OSPF_HELLO_TIMER_ON. The
former is used when hello is to be sent immediately.
* ospf_nsm.c: ditto
* ospf_packet.c: (ospf_hello) hello-interval is not checked
for mismatch if fast_hello is set.
(ospf_read) Annoying nit, fix "no ospf_interface" to be debug
rather than a warning, as it can be perfectly normal to
receive packets when logical subnets are used.
(ospf_make_hello) Set hello-interval to 0 if fast-hellos are
configured.
* ospf_vty.c: (ospf_auto_cost_reference_bandwidth) annoying
nit, don't vty_out if this command is given, it gets tired
quick.
(show_ip_ospf_interface_sub) Print the hello-interval
according to whether fast-hello is set or not.
Print the extra 5 millisec characters from (ospf_timer_dump)
if fast-hello is configured.
(ospf_vty_dead_interval_set) new function, common to all
forms of dead-interval command, to set dead-interval and
fast-hello correctly. If a dead-interval is given, unset
fast-hello, else if a hello-multiplier is set, set
dead-interval to 1 and fast-hello to given multiplier.
(ip_ospf_dead_interval_addr_cmd) use
ospf_vty_dead_interval_set().
(ip_ospf_dead_interval_minimal_addr_cmd) ditto.
(no_ip_ospf_dead_interval) Unset fast-hello.
(no_ip_ospf_hello_interval) Bug-fix, unset of hello-interval
should set it to OSPF_HELLO_INTERVAL_DEFAULT, not
OSPF_ROUTER_DEAD_INTERVAL_DEFAULT.
(config_write_interface) Write out fast-hello.
(ospf_config_write) Write a comment about
"auto-cost reference-bandwidth" having to be equal on all
routers. Hopefully just as noticeable as old practice of
writing to vty, but less annoying.
(ospf_vty_if_init) install the two new dead-interval
commands.
* ospfd.h: Add defines for OSPF_ROUTER_DEAD_INTERVAL_MINIMAL
and OSPF_FAST_HELLO_DEFAULT.
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* lib/smux.[ch]: allow to retreive global OID (identified by <0
namelen).
* ospf_ism.c: generate SNMP traps on Interface state change
* ospf_nsm.c: generate SNMP traps on Neighbour state change
* ospf_snmp.[ch]: support for SNMP traps for interface and neighbours.
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* ospf_ism.c (ospf_elect_bdr/ospf_elect_dr): Fix DR election bug.
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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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* ospf_interface.h: Improve passive_interface comment. Add new
multicast_memberships bitmask to struct ospf_interface to track
active multicast subscriptions. Declare new function
ospf_if_set_multicast.
* ospf_interface.c: (ospf_if_set_multicast) New function to configure
multicast memberships properly based on the current
multicast_memberships status and the current values of the
ospf_interface state, type, and passive_interface status.
(ospf_if_up) Remove call to ospf_if_add_allspfrouters (this is
now handled by ism_change_state's call to ospf_if_set_multicast).
(ospf_if_down) Remove call to ospf_if_drop_allspfrouters (now
handled by ism_change_state).
* ospf_ism.c: (ospf_dr_election) Remove logic to join or leave
the DRouters multicast group (now handled by ism_change_state's call
to ospf_if_set_multicast).
(ism_change_state) Add call to ospf_if_set_multicast to change
multicast memberships as necessary to reflect the new interface state.
* ospf_packet.c: (ospf_hello) When a Hello packet is received on a
passive interface: 1. Increase the severity of the error message
from LOG_INFO to LOG_WARNING; 2. Add more information to the error
message (packet destination address and interface address);
and 3. If the packet was sent to ospf-all-routers, then try
to fix the multicast group memberships.
(ospf_read) When a packet is received on an interface whose state
is ISM_Down, enhance the warning message to show the packet
destination address, and try to update/fix the multicast group
memberships if the packet was sent to a multicast address.
When a packet is received for ospf-designated-routers, but the
current interface state is not DR or BDR, then increase the
severity level of the error message from LOG_INFO to LOG_WARNING,
and try to fix the multicast group memberships.
* ospf_vty.c: (ospf_passive_interface) Call ospf_if_set_multicast for
any ospf interface that may have changed from active to passive.
(no_ospf_passive_interface) Call ospf_if_set_multicast for
any ospf interface that may have changed from passive to active.
(show_ip_ospf_interface_sub) Show multicast group memberships.
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* *.c: Change level of debug messages to LOG_DEBUG.
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* sync to latest zebra CVS
* spec file: updated and added define for ospf-api/client
NB: OSPF-API has been broken by the zebra.org changes, which
has added struct ospf * as a new arg to many functions
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Date: Fri, 20 Dec 2002 17:58:43 +0900
From: Masahiko Endo <endo@suri.co.jp>
Reply-To: zebra@zebra.org
To: zebra@zebra.org
Cc: kunihiro@zebra.org
Subject: [zebra 16824] [PATCH] nsm_kill_neighbor
[ The following text is in the "ISO-2022-JP" character set. ]
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[ Some characters may be displayed incorrectly. ]
Hi Ishiguro-san,
Here is my problem analysis against the case that the ospfd crashes
when an interface is brought down.
When the ospfd receives a ZEBRA message "ZEBRA_INTERFACE_DOWN" from
zebra daemon, the ospfd performs bunch of ospf-interface cleanup for
the notified zebra-interface.
There are cases that neighbor instance "nbr", which will be removed
afterward, may scheduled in the NSM thread event queue. And when the
NSM event thread is fired, dereference for this already freed "nbr"
pointer causes SIGSEGV.
Please take a look at following timeline of processing sequences.
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