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* ospf6_area.c
* ospf6_area_config_write(): write filter-list, import-list and
export-list lines
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This essentially merges the fix available from Debian build of Quagga.
* ospf6_area.c
* area_filter_list(): use correct argv indices
* no_area_filter_list(): idem
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This change is based on Xavier Beaudouin's patch (which fixes detection
of 3 config.h macros on FreeBSD without any impact to Linux build of
Quagga) and FreeBSD port patch (which fixes 5 config.h macros, but
breaks the Linux build), it fixes 5 macros and works for both FreeBSD 8
and Linux.
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* isis_pdu.c: Divide hello interval by three, depending if we are DIS or
not.
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The crash is due to threads accessing data that gets destroyed
during the removal of the configuration.
* isis_circuit.c: Destroy adjacencies to stop adjacency expiry thread.
Stop PSNP threads.
* isisd.c: Change state of circuit back to INIT and reassign the
circuit structure to isis->init_circ_list rather than destroying
the circuit data structure. Stop SPF threads. Stop LSP generation
threads.
* isisd.h: Add pointers to LSP threads into area structure in order to
stop them in isisd.c
* isis_lsp.c: Store pointer to LSP thread in area structure.
* isis_pdu.c: Stop PDU generation for a circuit with a removed area.
* isis_pfpacket.c: Stop processing received PDUs for a circuit with a
removed area.
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Recent versions of libc on Linux (Debian Testing) create lots of
compile warnings about direct usage of libutil.h
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* rt_netlink.c
* netlink_route_change(): fetch metric information like
netlink_routing_table() does and pass it further
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* ospf_route.c: Function ospf_asbr_route_cmp is called uniquely from
ospf_route_cmp() when the flag OSPF_RFC1583_COMPATIBLE is not set.
Therefore, the check that the flag is set doesn't make sense at all
and it can consequently be removed without doing any harm.
Signed-off-by: Alexandre Chappuis <alc@open.ch>
Signed-off-by: Roman Hoog Antink <rha@open.ch>
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* ospfd.texi: Adjust meaning of the rfc1583compatibility option in
order to match the RFC specification and the actual source code.
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This vulnerability (CERT-FI #514840) was reported by CROSS project.
ospf6d processes IPv6 prefix structures in incoming packets without
verifying that the declared prefix length is valid. This leads to a
crash
caused by out of bounds memory access.
* ospf6_abr.h: new macros for size/alignment validation
* ospf6_asbr.h: idem
* ospf6_intra.h: idem
* ospf6_lsa.h: idem
* ospf6_message.h: idem
* ospf6_proto.h: idem
* ospf6_message.c
* ospf6_packet_minlen: helper array for ospf6_packet_examin()
* ospf6_lsa_minlen: helper array for ospf6_lsa_examin()
* ospf6_hello_recv(): do not call ospf6_header_examin(), let upper
layer verify the input data
* ospf6_dbdesc_recv(): idem
* ospf6_lsreq_recv(): idem
* ospf6_lsupdate_recv(): idem
* ospf6_lsack_recv(): idem
* ospf6_prefixes_examin(): new function, implements A.4.1
* ospf6_lsa_examin(): new function, implements A.4
* ospf6_lsaseq_examin(): new function, an interface to above
* ospf6_packet_examin(): new function, implements A.3
* ospf6_rxpacket_examin(): new function, replaces
ospf6_header_examin()
* ospf6_header_examin(): sayonara
* ospf6_receive(): perform passive interface check earliest possible,
employ ospf6_rxpacket_examin()
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This vulnerability (CERT-FI #514839) was reported by CROSS project.
When Database Description LSA header list contains trailing zero octets,
ospf6d tries to process this data as an LSA header. This triggers an
assertion in the code and ospf6d shuts down.
* ospf6_lsa.c
* ospf6_lsa_is_changed(): handle header-only argument(s)
appropriately, do not treat LSA length underrun as a fatal error.
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This vulnerability (CERT-FI #514838) was reported by CROSS project.
The error is reproducible only when ospfd debugging is enabled:
* debug ospf packet all
* debug ospf zebra
When incoming packet header type field is set to 0x0a, ospfd will crash.
* ospf_packet.c
* ospf_verify_header(): add type field check
* ospf_read(): perform input checks early
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This vulnerability (CERT-FI #514838) was reported by CROSS project.
When only 14 first bytes of a Hello packet is delivered, ospfd crashes.
* ospf_packet.c
* ospf_read(): add size check
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This vulnerability (CERT-FI #514837) was reported by CROSS project.
They have also suggested a fix to the problem, which was found
acceptable.
Quagga ospfd does not seem to handle unknown LSA types in a Link State
Update message correctly. If LSA type is something else than one
supported
by Quagga, the default handling of unknown types leads to an error.
* ospf_flood.c
* ospf_flood(): check return value of ospf_lsa_install()
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This vulnerability (CERT-FI #513254) was reported by CROSS project.
They have also suggested a fix to the problem, which was found
acceptable.
The problem occurs when bgpd receives an UPDATE message containing
255 unknown AS_PATH attributes in Path Attribute Extended Communities.
This causes a buffer overlow in bgpd.
* bgp_ecommunity.c
* ecommunity_ecom2str(): perform size check earlier
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Two extern declarations in ospf6_abr.h are based on struct ospf6_route,
which may not be available at the time ospf6_abr.h is included. This may
lead to warnings after including ospf6_abr.h just for the structures
defined in it.
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* ospf6_abr.c
* ospf6_abr_examin_summary(): only fill "buf" when it is used
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Contains BGP fixes:
- set extcommunity crash: tihs patch tries to make the refcounting more robust
but does not fully solve the problem, sadly.
- BGP attribute error handling: Little testing.
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"mtu-ignore" is an option ospfd used to mimic from the vendor's
implementation, now ospf6d will also implement it.
* ospf6_interface.h: extend ospf6_interface structure by one flag
* ospf6_interface.c: (ipv6_ospf6_mtu_ignore, no_ipv6_ospf6_mtu_ignore):
new declarations; (ospf6_interface_create): show initial value for
consistency; (ospf6_interface_show): print flag status
* ospf6_message.c: (ospf6_dbdesc_recv): consider interface-specific flag
when checking MTU
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* zebra_routemap.c: (route_set_src) get rid of the dummy family variable.
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* bgp_aspath.c: (assegments_parse) just bail early if length doesn't match
and fix the formatting.
* bgp_network.c: add include needed for set_nonblocking
* bgp_packet.c: formatting
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* ospf_apiserver.{c,h}: (ospf_apiserver_lsa_refresher) refreshers must now
return the refreshed LSA.
* ospf_te.{c,h}: (ospf_mpls_te_lsa_refresh) ditto
* ospf_api.c: trivial compiler warning fix
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* ospf6_zebra.c: (ospf6_zebra_if_state_update) zebra_interface_state_read
may return NULL, if it can't find an interface, deal with it.
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* ospf6_zebra.c: (ospf6_zebra_if_state_update) zebra_interface_state_read
may return NULL, if it can't find an interface, deal with it.
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* bgp_routemap.c: (route_set_community_delete) When deleting a
community in a route-map the old community was being orphaned. Like
the description of the same code in route_set_community, this is a
hack, not a true fix.
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This reverts commit 2c9fd7e07283b8904ef20030c9dadb032e999b12.
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* doc/Makefile.am: pdf target needs to depend on all the input files.
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* bgp_attr.c: (attrhash_key_make) 98e30f should have changed jhash2 to jhash.
These kinds of merge errors would be reduced and life would be easier if
people would submit fully-formed fixes that could be chucked directly into
git-am.
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* bgpd.h: Add error code for setting GTSM on iBGP
* bgpd.c: (peer_ttl_security_hops_set) use previous error code and signal
incompatibility of GTSM+iBGP to vty.
Consider the session state when setting GTSM, and reset Open/Active peers
to let them pick up new TTL from start.
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In deciding whether to default ospfapi to on or off, use the same rule
for opaque-lsa as earlier: != no rather than = yes, so that not having
set it implies yes.
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* sockunion.c: (sockopt_minttl) Add IPv6 support for min hop count.
The kernel support is Linux kernel 2.6.35 or later.
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* bgp_vty.c: (peer_ebgp_multihop_{un,}set_vty) tail-call cleanup.
({no_,}neighbor_ttl_security) ditto.
* bgpd.c: (peer_ttl_security_hops_set) Peer group checks and TTL set only
need to be done on transition.
* sockunion.c: (sockopt_minttl) remove always-on debug and improve readability.
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* bgpd: Add support for RFC 5082 GTSM, which allows the TTL field to be used
to verify that incoming packets have been sent from neighbours no more
than X IP hops away. In other words, this allows packets that were sent from
further away (i.e. not by the neighbour with known distance, and so possibly
a miscreant) to be filtered out.
* lib/sockunion.{c,h}: (sockopt_minttl) new function, to set a minimum TTL
using the IP_MINTTL socket opt.
* bgpd.h: (BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK) define for command
error for minttl.
(struct peer) add a config variable, to store the configured minttl.
(peer_ttl_security_hops_{set,unset}) configuration handlers
* bgpd.c: (peer_group_get) init gtsm_hops
(peer_ebgp_multihop_{un,}set) check for conflicts with GTSM. Multihop and
GTSM can't both be active for a peer at the same time.
(peer_ttl_security_hops_set) set minttl, taking care to avoid conflicts with
ebgp_multihop.
(bgp_config_write_peer) write out minttl as "neighbor .. ttl-security hops X".
* bgp_vty.c: (bgp_vty_return) message for
BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
(peer_ebgp_multihop_{un,}set_vty)
* bgp_network.c: (bgp_accept) set minttl on accepted sockets if appropriate.
(bgp_connect) ditto for outbound.
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* bgp_route.c: ({no_,}ipv6_bgp_network_ttl_cmd) depends on ipv6_bgp_network
which is HAVE_IPV6, so these should be too.
(bgp_route_init) and the installs should be similarly ifdefed
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The following patch was also neccessary to compile.
* command.c: (config_logmsg_cmd) use "%s" format spec
* if.c: (connected_log) ditto
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* bgp_attr.c; (attrhash_key_make) s6_addr is only member of in6_addr
guaranteed to be available - s6_addr32 isn't. Fix to be more portable, and
thus allow compilation on BSD again.
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* ospfd: Refresher logic cleanup broke OSPF opaque, which does its own thing
with regard to refresher logic and which also, in the protocol, requires
implementations to keep state of which OI an LSA is received on (rather
than providing information in the LSA to allow it to be looked up - as
other LSAs requiring such assocation were careful to do).
* ospf_lsa.h: (struct ospf_interface) Add back the pointer to oi, but only
for type-9 now.
* ospf_nsm.c: (ospf_db_summary_add) check the oi actually exists first -
doesn't obviate the need for opaque to ensure oi pointers get cleaned up
when ospf_interfaces disappear.
* ospf_opaque.{c,h}: (ospf_opaque_functab,ospf_opaque_lsa_refresh) Refresher
LSA functions now need to return the LSA to the general refresh logic,
to indicate whether the LSA was refreshed.
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* configure.ac: (AC_ARG_ENABLE({ospf-te,opaque-lsa})) reverse the sense to
--disable
(enable_{opaque_lsa,ospf_te}) treat as enabled unless explicitly disabled.
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