| Age | Commit message (Collapse) | Author |
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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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2006-06-15 Paul Jakma <paul.jakma@sun.com>
* Reported by Milan Koci
* ospf_interface.h: (struct ospf_if_info) Add reference counts
for multicast group memberships. Add various macros to help
manipulate/check membership state.
* ospf_interface.c: (ospf_if_set_multicast) Maintain the
ospf_if_info reference counts, and only actually drop
memberships if it hits 0, to avoid losing membership when
OSPF is disabled on an interface with multiple active OSPF
interfaces.
* ospf_packet.c: (ospf_{hello,read}) Use the new macros to
check/set
multicast membership.
* ospf_vty.c: (show_ip_ospf_interface_sub) ditto.
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2006-05-12 Paul Jakma <paul.jakma@sun.com>
* ospf_interface.c: (ospf_if_exists) Fix missing NULL return
check on ospf_lookup, CID #27.
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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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2006-04-03 Paul Jakma <paul.jakma@sun.com>
* (general) Fix issues with handling of Vlinks and entries
in the nbrs route-table which were highlighted by the
nsm/nbr_self fixes from bug #234. Many thanks to Juergen
Kammer for his help and efforts in testing out debug patches to
pinpoint the issue.
* ospf_interface.c: (ospf_vl_new) Add nbr_self for Vlink.
* ospf_neighbor.c: (ospf_nbr_key) new static function, helper
to create key in nbrs table for a given nbr.
(ospf_nbr_delete) Use ospf_nbr_key. Add an assert() to
document an expected state.
(ospf_nbr_add_self) Ditto.
(ospf_nbr_lookup_by_addr) Add an assert.
* ospf_nsm.c: (nsm_kill_nbr) Can never kill the nbr_self
psuedo-neighbour.
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2006-03-25 Paul Jakma <paul.jakma@sun.com>
* ospf_interface.c: (ospf_if_lookup_recv_if) Ignore loopbacks,
we can never ever receive packets on those. Should fix
case where CARP is run with address in same subnet as real
interface. Problem report and diagnosis thanks to:
Landon Fuller <landonf@opendarwin.org>.
However, ospf_read() still can't deal deterministically with
multiple interfaces in same subnet.
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2006-01-10 Len Sorensen <lennartsorensen@ruggedcom.com>
* (general) Bug #234, see also [quagga-dev 3902].
Fix problem with nbr_self not being properly reinitialised
when an interface comes up, after having been down.
Some re-arrangement done by Paul Jakma, any bugs introduced
on top of Len's suggested changes are his.
* ospf_neighbor.c: (ospf_nbr_add_self) centralise
initialisation of nbr_self parameters here.
* ospf_interface.c: (ospf_if_new) deleting initialisation of
parameters of nbr_self, just rely on call to
ospf_nbr_add_self.
(ospf_if_cleanup) ditto.
* ospfd.c: (ospf_network_run) ditto.
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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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* (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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* ospfd/ospf_vty.c: forece default route LSA to be re_issued whenever
cost is changed ( [no] ip ospf area XXX default-cost YYY)
Support ignore-mtu option
* ospfd/ospfd.h: define OSPF_MTU_IGNORE_DEFAULT
* ospfd/ospf_packet.c: support ignore-mtu option
* ospfd/ospf_interface.h: field added for skipping MTU check
* ospfd/ospf_interface.c: fix memory leak in ospf_crypt_key_delete()
Set mtu_ignore field to default value
* ospfd/ospf_abr.[ch]: export ospf_abr_announce_network_to_area()
* ospfd/ospf_ism.h: add MACRO to convert internal ISM status into SNMP
correct values
* ospfd/ospf_snmp.c: add sanity check on LSA type in lsdb_lookup_next()
convert OSPFIFSTATE internal status into SNMP values
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* ospf_interface.c: (ospf_if_table_lookup) Fix a serious bug
a less serious one.
1: this function is supposed to lookup
entries in the oifs ospf_interface route_table and return either
an existing oi or NULL to indicate not found, its caller depends
on this, yet this function uses route_node_get which /always/
returns a route_node - one is created if none exists. Use
route_node_lookup instead. This should fix root cause of the
reports of the (ospf_add_to_if) assert being hit.
2: oi's are inserted into this table with prefixlength set to
/32 (indeed, it should be a hash table, not a route_table),
however prefixlength to lookup was not changed, if no valid entry
can be inserted other than /32, then nothng but /32 should be
looked up. This possibly only worked by fluke..
Fix confirmed by 2 reporters (one list, one IRC), definitely a
backport candidate once it has been incubated in HEAD for a while.
Thanks to Patrick Friedel and Ivan Warren for testing.
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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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* if.h: (if_lookup_by_name_len, if_get_by_name_len) New functions.
* if.c: (if_lookup_by_name_len, if_get_by_name_len) New functions.
(if_get_by_name) Tighten up code.
(interface) Use new function if_get_by_name_len.
* zclient.c: (zebra_interface_add_read) Use new if_get_by_name_len
function.
(zebra_interface_state_read) Use new if_lookup_by_name_len function.
* kernel_socket.c: (ifm_read) Use new if_lookup_by_name_len function
to save a memcpy.
* if_ioctl_solaris.c: (interface_list_ioctl) Fix subtle bug with new
if_get_by_name_len function.
* ospf_interface.c: (ospf_vl_new) Use strnlen to fix call to if_create.
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* rt_netlink.c: (netlink_link_change) If the status of an
operative interface changes (e.g. MTU changes), the client
daemons should be notified by calling zebra_interface_up_update.
Previously, the information was being updated in zebra's
interface structure, but the clients were not notified of
changes to an operative interface.
* ospf_zebra.c: (ospf_interface_state_up) If the MTU of an operative
interface changes, print a debug message and call ospf_if_reset()
to simulate down/up on the interface.
* ospf_interface.h: Declare new function ospf_if_reset().
* ospf_interface.c: (ospf_if_reset) New function to call ospf_if_down
and ospf_if_up for all ospf interfaces attached to an interface.
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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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* ospf_interface.h: Declare new function ospf_default_iftype.
* ospf_interface.c: (ospf_default_iftype) New function to centralize
this logic in one place.
* ospf_zebra.c: (ospf_interface_add) Use new function
ospf_default_iftype.
* ospf_vty.c: (no_ip_ospf_network,config_write_interface) Fix logic
by using new function ospf_default_iftype.
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* *.c: Change level of debug messages to LOG_DEBUG.
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ripd might need some more testing though.
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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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* ospf_interface.c: (ospf_vl_set_params) Catch changes of interface
address for either end of a virtual-link, and hence potential cost
changes.
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* ospf_spf.h: Add backlink field to struct vertex
* ospf_spf.h: (ospf_vertex_new) initialise backlink
(ospf_lsa_has_link) return index of link back to
vertex V from candidate vertex W, or -1 if no link exists.
(ospf_spf_next) save backlink index for candidate vertex
* ospf_interface.c: (ospf_vl_set_params) Use the backlink index
to determine correct address for virtual-link peers. Fall back
to older "pick first link" method if no backlink index exists.
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* ospf_zebra.c: (ospf_interface_delete) Do not delete the interface
params, nor the interface structure, if an interface delete
message is received from zebra.
* ospf_interface.c: (ospf_if_delete_hook) Delete the interface
params and interface, ie that which was previously removed in
(ospf_interface_delete) above.
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more. I'm not sure if this read should be attempted at all, but I'm trying
to keep code safe AND stable.
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* ospfd/ospf_interface.c: (ospf_if_table_lookup) grab reference to
rn->info /before/ calling route_unlock_node() as some systems
may deliberately poison freed memory, eg FreeBSD 5.1.
see [quagga-dev 417].
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* ospfd/ospf_interface: (ospf_if_lookup_table) fix compile errors
from previous patch. doh.
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* ospfd/ospf_interface: (ospf_if_lookup_table) new function to
lookup oi for a given prefix in a given interfaces table of oi's.
(ospf_if_new) use ospf_if_lookup_table to deal with zebra
reporting new interface multiple times.
NB: This patch is a complete plaster-band of a hack. First, why is
zebra reporting interface events multiple times? Second, why does
ospfd maintain so many damn lists and tables relating to oi's -
these should be reconciled into one or two tables.
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* lib/if.c: (if_cmp_func) new function, compare interface names in
alphabetical order.
(if_create) Take name as argument and add interface in sorted order.
(if_get_by_name),(interface_cmd) fixup calls to if_create - see
above.
(if_init) register list comparison function.
* lib/if.h: Add comparison function, modify if_create prototype.
* lib/zclient.c: Modify call to if_create.
* ospfd/ospf_interface.c: (ospf_vl_new) modify call to if_create.
change sprintf to snprintf.
* zebra/kernel_socket.c: (ifm_read) modify call to if_create.
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* ospf_interface.c (ospf_vl_set_params): new router LSA is not
generated when the cost of the routing entry for the virtual
link endpoint has changed. If the cost to reach the virtual link's
endpoint has changed, add router LSA timer for the backbone area.
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* Revert Cougar's sort interface names patch, causes problems with
enabling of interfaces for OSPF in ospfd.
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Subject: [zebra 19263] Another memory leak!! is zebra OSPF
This memory leak gets into picture whenever any interface goes down.
Problem found and desctription: Whenever the interface goes down, the
"def_params" (member of ospf_if_info) structure memory is not freed.
Fix made: added the following line to free the "def_params" memory of
ospf_if_info before calling the "XFREE(MTYPE_OSPF_IF_INFO, ifp->info);"
The added line is:
ospf_del_if_params ((struct ospf_if_params *) IF_DEF_PARAMS (ifp));
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Subject: [zebra 19262] Re: Memory leak in OSPF
Fix applied for Kamatchi's original report was to remove the auth_crypt
initialisation from the wrong function. This should fix that.
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Subject: [zebra 19259] Memory leak in OSPF
The detail of the memory leak follows:
File name: ospf_interface.c
Function name: ospf_if_new_hook().
Type of leak: Overwriting the already allocated memory.
Problem found and description:
The ospf_new_if_params() fn allocates a memory for "auth_crypt" which
is overwritten, down in the fn (ospf_if_new_hook) by explicitely allocating
a memory for the same "auth_crypt".
Fix: remove allocation from ospf_new_if_params()
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* ospf_interface.c(ospf_if_lookup_recv_if): Use the most specific
match for interface lookup.
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Subject: [zebra 18767] possible SIGSEGV
Fix incorrect memset
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* Sync to Zebra CVS
* Fix lib/thread.h leak
* Fix small Opaque LSA leak
* Do not configure OSPF interfaces for secondary addresses
* vtysh fixes from Hasso
* Dave Watson's missing ntohs fix
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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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may return an existing node. (if the code wants a /new/ node why not use
route_node_set? if it doesnt mind - then the assert is wrong).
this bug is in zebra.org CVS. (must be an extremely rare/unlikely bug
though).
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[zebra 16681] OSPF NSSA Patches
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