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2004-07-23  Greg Troxel  <gdt@poblano.ir.bbn.com>
	* */Makefile.am: Use ../dir/libfoo.la, rather than "-L../dir
	-lfoo", to avoid linking against installed libraries from a
	previous version.
	* {lib,ospfd,ospfclient}/Makefile.am: explicitly define the shared
	library version number to be 0.0
	* configure.ac: remove spurious , so extract.pl is chmod'd +x.
	* HACKING: explain shared library versioning rules
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* ospf_network.c: Replace PKTINFO/RECVIF with call to
          setsockopt_pktinfo
        * ospf_packet.c: Use getsockopt_pktinfo_ifindex and
          SOPT_SIZE_CMSG_PKTINFO_IPV4.
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* ospf_packet.c: (ospf_ls_upd_send_queue_event) Partial fix for
          problem reported by Peter Frost amongst others, where function
          will spin indefinitely if update list contains LSAs greater than
          MTU-headers or other condition leading to update list never being
          cleared. Problem of what to do with these LSAs remains.
          (ospf_make_ls_upd) add comment about large LSA problem,
          indentation cleanup.
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libzebra and libospfapiclient are now built shared, and linked shared
with the daemons.  This reduces the memory needed when running
multiple daemons; each daemon is at least 150k smaller.  Static
libraries are still built, and libtool should use them on platforms
which don't have shared libaries.  As with autoconf, the user of a
distribution does not need libtool; one just needs that to build from
CVS.
libospf.a is still a non-shared library, and still installed, not
because that makese sense, but because I don't understand why it is
the way it is now.
Note that the tree was tagged 'libtool-before' just before this commit.
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to read system one.
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* ospf_dump.c,ospf_lsa.c: Fix typos of merge of previous.
          ospf_flood.c: (ospf_process_self_originated_lsa) fix zlog format.
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* ospf_dump.c: (ospf_lsa_header_dump) LOOKUP can return null if
          index is out of range.
          ospf_flood.c: endianness fix
          ospf_lsa.c: Missing ntohl's on (struct lsa *)->data->ls_seqnum
          in various places.
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used in route-map used to filter redistributions.
* Move ospf_prefix_list_update() function from ospfd.c to ospf_zebra.c.
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* bgp_zebra.c: (bgp_interface_address_add) sync to zclient changes
         (bgp_interface_address_delete) ditto.
         (bgp_zebra_announce) ditto.
         (bgp_zebra_withdraw) ditto.
       * isis_zebra.c: Sync with zclient changes.
       * zclient.c (zapi_ipv4_route) Follow Sowmini's lead and describe
         message format.
       * ospf6_zebra.c: Sync to zclient changes
       * ospf_zebra.c: Sync with lib/zclient changes
       * rip_zebra.c: sync with zclient changes.
       * rip_interface.c: ditto.
       * ripng_{interface,zebra}.c: sync with zclient changes
2004-05-08 Sowmini Varadhan <sowmini.varadhan@sun.com>
       * zclient.c: (zapi_ipv4_add) collapsed into zapi_ipv4_route
         (zapi_ipv4_delete) ditto.
         (zapi_ipv4_route) add/delete a route by way of cmd arg.
         (zapi_ipv6_add) collapsed into zapi_ipv6_route.
         (zapi_ipv6_delete) ditto.
         (zapi_ipv6_route) add/delete a route by way of cmd arg.
         (zebra_interface_address_delete_read) collapsed into
         zebra_interface_address_read.
         (zebra_interface_address_delete_read) ditto.
         (zebra_interface_address_read) read address add/delete messages
         by way of type argument. Describe command message format.
         (zebra_interface_add_read) Unconditionally read new ifmtu6 field.
         Describe command message format.
         (zebra_interface_state_read) Unconditionally read new ifmtu6 field.
         (zclient_redistribute_set) Collapsed into zclient_redistribute
         (zclient_redistribute_unset) ditto
         (zclient_redistribute) set/unset redistribution.
         (zclient_redistribute_default_set) Collapsed into
         zclient_redistribute_default.
         (zclient_redistribute_default_unset) ditto.
         (zclient_redistribute_default) Redistribute default set/unset.
       * zclient.h: delete zapi_ipv{4,6}_add, zapi_ipv{4,6}_delete. Add
         zapi_ipv{4,6}_route. delete zclient_redistribute_set/unset. Add
         zclient_redistribute. Ditto for
         zclient_redistribute_default_{set/unset}.
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* ospf_network.c: (ospf_sock_init) Check whether IP_HDRINCL is
          defined. Warn at compile and runtime. Use
          IPTOS_PREC_INTERNETCONTROL otherwise.
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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_packet.c:  (ospf_associate_packet_vl) cleanup, move
          some of the checks up to ospf_read, return either a
          virtual link oi, or NULL.
          (ospf_read) Cleanup, make it responsible for checks. Remove
          the nbr lookup - moved to ospf_neighbor. Adjust all nbr
          lookups to use new wrappers exported by ospf_neighbor.
        * ospf_neighbor.h: Add ospf_neigbour_get and ospf_nbr_lookup.
        * ospf_neighbor.c: (ospf_neigbour_get) Index ospf_interface
          neighbour table by router-id for virtual-link ospf_interfaces,
          not by peer_addr (which breaks for asymmetric vlinks)
          (ospf_nbr_lookup) add a wrapper for nbr lookups to deal with
          above.
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warnings and update documentation.
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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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[quagga-dev 843]
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* (many) reference <lib/version.h> rather than "version.h",
	because version.h is a generated file and not present in the
	source tree when using objdir builds.
(committed by gdt)
works fine with normal builds; didn't try objdir
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from vtysh ([quagga-dev 932]).
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* ospf_abr.c: (ospf_abr_update_aggregate) UNH 3.12b,c, address range
          should be configured with the highest cost path within the range,
          not lowest.
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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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checking.
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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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* tests/test-sig.c: New file, regression test for sigevents.
        * lib/Makefile.am: add sigevent.{c,h}
        * (isis|rip|ripng|ospf|ospf6|bgp)d/\1_main.c: modify for sigevents.
        * zebra/main.c: ditto.
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Use pkginclude_HEADERS rather than include_HEADERS to place includes
in ${prefix}/include/quaggainstead of polluting ${prefix}/include.
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* ospf_packet.c: (ospf_recv_packet) OpenBSD now leaves iph.ip_len
          network byte order. (bugzilla #67).
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* ospfd/ospf_flood.c: (ospf_flood_through_interface) fix compile
	  warning.
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while trying not to change semantics.  Add ifdefed-out code to
	avoid matching ppp interfaces whose destination address does not
	also match the prefix under consideration, to help out people with
	problems due to as-yet-unfixed bugs with p2p interfaces coming and
	going.
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files, defaulting to sysconfdir (matching previous behavior).
This is needed to support (cleanly) NetBSD pkgsrc, which requires that
example config files go in $(prefix)/share/examples/pkgname, rather
than in $(prefix)/etc/pkgname.
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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/ospfd.c: if_is_pointopoint() takes (struct interface *), was
          being called with struct connected. Change to co->ifp.
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* ospfd/ospfd.c: Do not increment act_int for an area, as it is done
          by ospf_ism.c::ism_change_state() - results in incorrect figure
          for active interfaces in an area.
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* configure.ac: Check for fcntl()
        * {bgpd,ospf,ospf6d,ripd,ripngd}/Makefile.am: Install conf file via
          regular automake means, not magic install incantations, see
          bug #38.
        * lib/Makefile.am: install the headers, needed to link libzebra.a
          (and hence libospf.a, OSPF-API, etc.)
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* ospfd/ospf_network.c: (ospf_sock_init) Exit if socket can not be
          created.
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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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* ospf_lsa.h: Add OSPF_LSA_PREMATURE_AGE flag.
	* ospf_lsa.c: added better debug comments. check sequence number in
	  ospf_lsa_install. ospf_maxage_lsa_remover() checks for
 	  OSPF_LSA_PREMATURE_AGE and re-originates the lsa after ls_acks are
	  received.
	* ospf_flood.c: improve debug statement- print ls_seqnum.
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* zebra/connected.c: revert the 'generic PtP' patch as it causes
	far too many problems. People who use FreeSWAN should investigate
	native linux ipsec.
	* zebra/rt_netlink.c: ditto
	* lib/if.c: ditto
	* ripd/ripd.h: ditto
	* ripd/ripd.c: ditto
	* ripd/rip_interface.c: ditto
	* ospfd/ospfd.c: ditto
	* ospfd/ospf_snmp.c: ditto
	* bgpd/bgp_nexthop.c: ditto
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