2007-01-24 Paul Jakma <paul.jakma@sun.com>
* ospf_spf.c: Bug #330: Nexthop calculation sometimes may fail,
and it needs to indicate this result to SPF.
(ospf_spf_add_parent) Flush of parent list needs to be done here,
for simplicity.
(ospf_nexthop_calculation) Caller needs to know whether
nexthop calculation succeeded. Every return statement must
correctly indicate such.
(ospf_spf_next) Queueing/prioritisation of vertices in SPF
must take into account whether nexthop_calculation succeeded,
or SPF may fail to find best paths.
2006-12-12 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* if.h: (struct connected) Add new ZEBRA_IFA_PEER flag indicating
whether a peer address has been configured. Comment now shows
the new interpretation of the destination addr: if ZEBRA_IFA_PEER
is set, then it must contain the destination address, otherwise
it may contain the broadcast address or be NULL.
(CONNECTED_DEST_HOST,CONNECTED_POINTOPOINT_HOST) Remove obsolete
macros that were specific to IPv4 and not fully general.
(CONNECTED_PEER) New macro to check ZEBRA_IFA_PEER flag.
(CONNECTED_PREFIX) New macro giving the prefix to insert into
the RIB: if CONNECTED_PEER, then use the destination (peer) address,
else use the address field.
(CONNECTED_ID) New macro to come up with an identifying address
for the struct connected.
* if.c: (if_lookup_address, connected_lookup_address) Streamline
logic with new CONNECTED_PREFIX macro.
* prefix.h: (PREFIX_COPY_IPV4, PREFIX_COPY_IPV6) New macros
for better performance than the general prefix_copy function.
* zclient.c: (zebra_interface_address_read) For non-null destination
addresses, set prefixlen to equal the address prefixlen. This
is needed to get the new CONNECTED_PREFIX macro to work properly.
* connected.c: (connected_up_ipv4, connected_down_ipv4,
connected_up_ipv6, connected_down_ipv6) Simplify logic using the
new CONNECTED_PREFIX macro.
(connected_add_ipv4) Set prefixlen in destination addresses (required
by the CONNECTED_PREFIX macro). Use CONNECTED_PEER macro instead
of testing for IFF_POINTOPOINT. Delete invalid warning message.
Warn about cases where the ZEBRA_IFA_PEER is set but no
destination address has been supplied (and turn off the flag).
(connected_add_ipv6) Add new flags argument so callers may set
the ZEBRA_IFA_PEER flag. If peer/broadcast address satisfies
IN6_IS_ADDR_UNSPECIFIED, then reject it with a warning.
Set prefixlen in destination address so CONNECTED_PREFIX will work.
* connected.h: (connected_add_ipv6) Add new flags argument so
callers may set the ZEBRA_IFA_PEER flag.
* interface.c: (connected_dump_vty) Use CONNECTED_PEER macro
to decide whether the destination address is a peer or broadcast
address (instead of checking IFF_BROADCAST and IFF_POINTOPOINT).
* if_ioctl.c: (if_getaddrs) Instead of setting a peer address
only when the IFF_POINTOPOINT is set, we now accept a peer
address whenever it is available and not the same as the local
address. Otherwise (no peer address assigned), we check
for a broadcast address (regardless of the IFF_BROADCAST flag).
And must now pass a flags value of ZEBRA_IFA_PEER to
connected_add_ipv4 when a peer address is assigned.
The same new logic is used with the IPv6 code as well (and we
pass the new flags argument to connected_add_ipv6).
(if_get_addr) Do not bother to check IFF_POINTOPOINT: just
issue the SIOCGIFDSTADDR ioctl and see if we get back
a peer address not matching the local address (and set
the ZEBRA_IFA_PEER in that case). If there's no peer address,
try to grab SIOCGIFBRDADDR regardless of whether IFF_BROADCAST is set.
* if_ioctl_solaris.c: (if_get_addr) Just try the SIOCGLIFDSTADDR ioctl
without bothering to check the IFF_POINTOPOINT flag. And if
no peer address was found, just try the SIOCGLIFBRDADDR ioctl
without checking the IFF_BROADCAST flag. Call connected_add_ipv4
and connected_add_ipv6 with appropriate flags.
* if_proc.c: (ifaddr_proc_ipv6) Must pass new flags argument to
connected_add_ipv6.
* kernel_socket.c: (ifam_read) Must pass new flags argument to
connected_add_ipv6.
* rt_netlink.c: (netlink_interface_addr) Copy logic from iproute2
to determine local and possible peer address (so there's no longer
a test for IFF_POINTOPOINT). Set ZEBRA_IFA_PEER flag appropriately.
Pass new flags argument to connected_add_ipv6.
(netlink_address) Test !CONNECTED_PEER instead of if_is_broadcast
to determine whether the connected destination address is a
broadcast address.
* bgp_nexthop.c: (bgp_connected_add, bgp_connected_delete)
Simplify logic by using new CONNECTED_PREFIX macro.
* ospf_interface.c: (ospf_if_is_configured, ospf_if_lookup_by_prefix,
ospf_if_lookup_recv_if) Simplify logic using new CONNECTED_PREFIX
macro.
* ospf_lsa.c: (lsa_link_ptop_set) Using the new CONNECTED_PREFIX
macro, both options collapse into the same code.
* ospf_snmp.c: (ospf_snmp_if_update) Simplify logic using new
CONNECTED_ID macro.
(ospf_snmp_is_if_have_addr) Simplify logic using new CONNECTED_PREFIX
macro.
* ospf_vty.c: (show_ip_ospf_interface_sub) Use new CONNECTED_PEER macro
instead of testing the IFF_POINTOPOINT flag.
* ospfd.c: (ospf_network_match_iface) Use new CONNECTED_PEER macro
instead of testing with if_is_pointopoint. And add commented-out
code to implement alternative (in my opinion) more elegant behavior
that has no special-case treatment for PtP addresses.
(ospf_network_run) Use new CONNECTED_ID macro to simplify logic.
* rip_interface.c: (rip_interface_multicast_set) Use new CONNECTED_ID
macro to simplify logic.
(rip_request_interface_send) Fix minor bug: ipv4_broadcast_addr does
not give a useful result if prefixlen is 32 (we require a peer
address in such cases).
* ripd.c: (rip_update_interface) Fix same bug as above.
2006-12-04 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospfd.c: (ospf_network_run) Remove an offending 'break' statement.
Previously, after creating a single ospf_interface on a given
network interface, the code would skip to the next interface
without considering other connected addresses on the interface.
After removing the 'break', we now consider all connected addresses.
2006-11-30 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_zebra.c: (ospf_router_id_update_zebra,
ospf_interface_address_add, ospf_interface_address_delete)
If (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) is enabled, then
add a debug message about what Zebra is telling us.
(ospf_zebra_add_discard) Add a debug message matching the one
already in ospf_zebra_delete_discard.
2006-11-28 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_vty.c: (ospf_passive_interface_default) Take additional
'newval' arg so we can update ospf->passive_interface_default inside
this function. More importantly, we now call ospf_if_set_multicast
on all ospf_interfaces.
(ospf_passive_interface, no_ospf_passive_interface) Fix bug:
for 'default' case, argv[0] is undefined, so we must test for
(argc == 0) before using argv[0]. And since
ospf_passive_interface_default now calls ospf_if_set_multicast as
needed, we can just return after calling
ospf_passive_interface_default.
2006-10-24 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_zebra.c: (ospf_redistribute_default_set) Fix bug where
a new value for ospf->default_originate was being ignored
if a previous 'default-information originate' command
had already been processed.
2006-10-22 Yar Tikhiy <yar@comp.chem.msu.su>
* (general) Add support for passive-interface default (with
minor edits by Paul Jakma).
* ospf_interface.h: Add OSPF_IF_PASSIVE_STATUS macro, looking
at configured value, or the global 'default' value, as
required.
* ospf_interface.c: (ospf_if_new_hook) Leave passive
unconfigured per default, allowing global 'default' to
take effect for unconfigured interfaces.
* ospf_packet.c: (various) use OSPF_IF_PASSIVE_STATUS
* ospf_vty.c: (ospf_passive_interface_default) new function,
unset passive from all interfaces if default is enabled, as
the per-iface settings become redundant.
(ospf_passive_interface_update) new func, update passive
setting taking global default into account.
({no,}ospf_passive_interface_addr_cmd) Add support for
'default' variant of command.
(show_ip_ospf_interface_sub) Update to take global
default into account when printing passive status.
(ospf_config_write) ditto.
* ospfd.c: (ospf_new) set global passive-interface default.
* ospfd.h: (struct ospf) Add field for global
passive-interface.
2006-10-04 Oliver Hookins <ohookins@gmail.com>
* bgpd/bgp_main.c: Add configuration check option, with
'-C' rather than '-c' for consistency between daemons.
* isisd/isis_main.c: ditto
* ospf6d/ospf6_main.c: ditto
* ospfd/ospf_main.c: ditto
* ripngd/ripng_main.c: ditto
* vtysh/vtysh_main.c: ditto
* ripd/rip_main.c: Change the config check option to
'-C' and tidy up the code.
* zebra/main.c: ditto
2006-10-04 Stergiakis Alexandros <astergiakis@antcor.com>
* ripd/rip_main.c: This trivial patch introduces a new
command-line option '-c', which instructs zebra/ripd
to check its configuration file for validity, print
any error message, and then exit. This is useful when
the configuration file is edited by hand or otherwise,
and you simply want to validate it without any other
effect.
* zebra/main.c: ditto
2006-09-25 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_packet.c: (ospf_packet_dup, ospf_make_md5_digest)
Fix zlog_warn messages to eliminate compiler warnings.
(ospf_hello) Improve warning messages to show why we
are complaining.
2006-08-28 Andy Gay <andy@andynet.net>
* ospf_packet.c: (ospf_make_db_desc) Assert added with More-bit
fixes does not hold up with addition of Ogier DB-Exchange
optimisation, which can empty the db-summary list in between
sent DD packets. Remove assert, update More-bit always when
in Exchange.
2006-08-27 J.J. Krabbendam <jkrabbendam@aimsys.nl>
* ospfd.c: (ospf_finish_final) default redistribute should be
unset too, fixes bug where reconfiguring ospfd completely
can no longer enable default redistribution.
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.
2006-08-03 Paul Jakma <paul.jakma@sun.com>
* ospf_packet.c: (ospf_make_db_desc) Unset the DD More bit
after constructing the packet, if appropriate.
(ospf_db_desc_proc) Speed up Exchange, slave should raise
ExchangeDone earlier, as RFC mandates, by forming its reply
before deciding whether both sides are done, avoids a
needless round of empty DD packet exchanges at the end of
Exchange, hence speeding up ExchangeDone.
(ospf_db_desc) use UNSET_FLAG macro.
2006-08-04 Paul Jakma <paul.jakma@sun.com>
* ospf_lsdb.c: (ospf_lsdb_delete_entry) new function, consolidate
exact same functionality replicated in other functions.
(ospf_lsdb_add) Strip out code by using ospf_lsdb_delete_entry.
(ospf_lsdb_delete) ditto.
(ospf_lsdb_delete_all) ditto.
2006-07-27 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospfd.c: (ospf_router_id_update) Fix and document the algorithm for
selecting the router ID: if there is not a statically configured ID,
then stick to the most recent value to avoid disruptive changes.
This should fix bug #288.
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.
2006-07-25 Paul Jakma <paul.jakma@sun.com>
* ospf_neigbor.h: (struct ospf_neighbor) Add some additional
neighbour state statistics fields, timestamps for progressive
and regressive state changes, and pointer to event string
for the latter state change.
* ospf_nsm.c: (nsm_notice_state_change) Update new state changs
history as required.
* ospf_vty.c: (show_ip_ospf_neighbor_detail_sub) Print out above
new per-neighbour state change stats.
2006-07-10 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (ospf_nsm_event) Record state change timestamp
and event in nbr struct.
* ospf_neighbor.h: (struct ospf_neighbor) Add fields to record
timestamp of last NSM change and event.
* ospf_vty.c: (show_ip_ospf_neighbor_detail_sub) Print
last state change timestamp and event, if available.
2006-07-10 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (nsm_notice_state_changes) Move state change
logging code to new func to declutter nsm_change_state and
ospf_nsm_event.
Log event with AdjChange, it's useful to know.
(nsm_change_state) move adjchange and snmp logging to previous.
(ospf_nsm_event) call nsm_notice_state_changes from here.
Move the debug message to entry of function, so it gets out
even if something goes wrong.
2006-07-10 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (nsm_change_state) call nsm_clear_adj for all
adjacency losses, hence removing need for nsm_reset_nbr.
(nsm_reset_nbr) kill it, clear_adj in previous does fine.
(nsm_kill_nbr,nsm_start) remove nsm_reset_nbr call.
(ospf_nsm_event) Allow NSM function to be NULL, this along with
removal of nsm_reset_nbr, allows a bunch of now useless functiosn
to be removed.
Remove some useless variables.
(nsm_ignore) now useless, remove.
(nsm_bad_ls_req) ditto
(nsm_seq_number_mismatch) "
(nsm_oneway_received) "
(nsm_inactivity_timer) "
(nsm_ll_down) "
(NSM) replace removed action functions with NULL.
2006-07-10 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_packet.c: (ospf_hello) Improve NetworkMask mismatch warning
message to include interface name and conflicting prefix lengths.
2006-07-07 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.h: Add a NSM_Deleted neighbour state, to act as dummy
state indicating the neighbour is to be deleted.
* ospf_nsm.c: (general) Use the NSM_Deleted state to delete
neighbours, thus allowing code to be slightly more obvious
in its flow.
(nsm_timer_set) Add NSM_Deleted. Add another timer the code
missed.
(nsm_kill_nbr) No need for special case call to nsm_change_state
anymore.
Make the assert and error-handling for same case more readable
(Andrew Schorr)
Remove the call to ospf_nbr_delete, nsm_change_state can do
this generally now via NSM_Deleted.
(struct ... NSM) Add the dummy NSM_Deleted state, the 3 events
that can lead to nsm_kill_nbr all now transition the NBR to
NSM_Deleted and the general change_state function can be left
to do the work.
(ospf_nsm_event) Special casing of events and early-return can
be removed now.
On transition into Deleted, delete the nbr.
* ospf_dump.c: (ospf_nsm_state_msg) Add Deleted.
2006-07-06 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (ospf_nsm_event) LLDown event also results in nbr
being deleted, requires early-return too. Likely explains
some crash reports after interface events.
2006-07-04 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (general) Various small cleanups from Andrew's
review of last set of patches.
(nsm_timer_set) Loading, Full and default can share
same code too.
(nsm_should_adj) Can just be one big OR.
(nsm_twoway_received) Collapse into return statement.
2006-07-02 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (nsm_clear_adj) clear adjacency related state for a
neighbour, needed for some state changes from > ExStart down
to ExStart or less, which need not go through nsm_reset_nbr.
(nsm_reset_nbr) move code to former. Should be static.
(ospf_nsm_event) Remove long dead code.
Use nsm_clear_adj for state changes that take down
adjacencies to TwoWay/ExStart.
(nsm_kill_nbr) Oops, action function shouldn't try return
1 for error.
2006-07-02 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (nsm_timer_set) ls_req timer should be OFF in
early states.
Compact several identical sections.
Set inactivity timer to OFF for Down, for documentary purposes.
2006-07-02 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (ospf_nsm_event) Don't allow action functions to
change next_state if the NSM tables do not indicate
next_state is conditional, log warning if one tries -
existing code appears fine though.
2006-07-02 Paul Jakma <paul.jakma@sun.com>
* ospf_nsm.c: (nsm_should_adj) New function, just consolidate the
10.4 adjacency check from nsm_twoway_received/nsm_adj_ok.
(nsm_twoway_received/nsm_adj_ok) Use former.
2006-06-30 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_vty.c: (show_ip_ospf_neighbor_id) Should show all instances
of that neighbor (since it may appear on multiple interfaces)
instead of bailing out after showing the first match.
2006-06-29 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_nsm.c: (nsm_twoway_received) When deciding whether to
change from state Init to ExStart, the test for whether the
neighboring router is DR or BDR should be against the
local router's notion of DR/BDR, not the neighbor's view.
2006-05-23 Paul Jakma <paul.jakma@sun.com>
* ospf_vty.c: (general) Replace in-place route redistribution
command and help strings with the new auto-generated defines
from lib/route_types.h
2006-06-26 Paul Jakma <paul.jakma@sun.com>
* ospf_abr.c: (general) NSSA translate-candidate ABRs need to
be ASBRs, or other routers may rightfully refuse to install
translated type-5s LSAs. reported by dendroot@gmail.com.
(ospf_abr_nssa_check_status) Detect change in translator
state when ABR, and inc/dec redistribute count as when we
leave/enter the disabled state - so that translate-enabled
ABR properly sets ASBR bit on non-NSSA areas.
Run the resulting function through indent to clean it up.
* ospf_lsa.c: (router_lsa_flags) For purposes of ASBR bit,
NSSA area is same as stub area.
2006-06-24 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_snmp.c: (ospfTrapNbrStateChange, ospfTrapIfStateChange) Improve
info log message to indicate why the trap is being sent.
2006-06-24 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_dump.c: (config_write_debug) Fix typo to show debug ospf nsm
status properly (not ism status).
2006-06-17 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ospf_vty.c: ({no_,}ospf_passive_interface) Replace if_lookup_by_name
with a call to if_get_by_name -- if the interface does not exist
already, it should be created. And remove the obsolete warning
message.
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.
2006-05-31 Paul Jakma <paul.jakma@sun.com>
* ospf_lsdb.c: (ospf_lsdb_delete) robustify against NULL arguments,
print warning.
* ospf_lsa.c: (ospf_discard_from_db) ditto.
(ospf_maxage_lsa_remover) Check lsa->lsdb for validity, possible
mitigation (but not solution) for bug #269.
2006-05-30 Paul Jakma <paul.jakma@sun.com>
* ospf_packet.c: (ospf_read) Debug message about packets
received on unenabled interfaces should be conditional on
debug being set.
2006-05-13 Paul Jakma <paul.jakma@sun.com>
* ospf_lsa.c: (ospf_translated_nssa_refresh) fix the sanity
check to match the assert, small error in CID #13 fix.
2006-05-12 Paul Jakma <paul.jakma@sun.com>
* ospf_lsa.c: (ospf_translated_nssa_refresh) Add non-assert
sanity check, in case DEBUG isn't defined. Debug message
when no type7 exists should print the ID from the type5, not
the type7, fixes CID #13.
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.
2006-05-12 Paul Jakma <paul.jakma@sun.com>
* ospf_ia.c: (ospf_update_router_route) ospf->backbone could be
NULL when passed to ospf_find_asbr_route_through_area,
check for NULL first, CID #14.
2006-05-12 Paul Jakma <paul.jakma@sun.com>
* ospf_asbr.c: (ospf_redistribute_withdraw) remove ospf_lookup
call by taking the struct ospf * as argument, which the
caller has, fixing CID #28.
* ospf_asbr.h: (ospf_redistribute_withdraw) update declaration
* ospf_zebra.c: (ospf_redistribute_unset) update call to
ospf_redistribute_withdraw to match.
2006-05-12 Paul Jakma <paul.jakma@sun.com>
* ospf_lsa.c: (ospf_lsa_action) Get rid of the ospf_lookup
call, which is not checked for NULL return, by stripping out
functionality which is never used, hence fixing Coverity CID
#29.
(struct lsa_action) remove unused member.
2006-05-11 Paul Jakma <paul.jakma@sun.com>
* ospf_lsa.c: (ospf_default_originate_timer) Let the thread
take (struct ospf *) as thread argument, rather than (struct
ospf *)->default_originate, thus avoiding having to call
ospf_lookup.
* ospf_zebra.c: (ospf_redistribute_default_set) change setup
of ospf_default_originate_timer thread to match.
* ospfd.c: (ospf_router_id_update) ditto.
2006-05-11 Paul Jakma <paul.jakma@sun.com>
* ospf_abr.c: (ospf_area_range_cost_set) Shouldn't create a new
range, should just lookup to see if one exists, the new range
is just leaked. Fixes CID #46.
