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* zebra/zserv.c
- zread_ipv4_delete(): Pass a null 'gate' parameter to
rib_delete_ipv4() if the route being deleted does not specify a
next hop IP address. We were previously passing a pointer to a
cleared out IP address.
- zread_ipv4_add(): Fix indentation.
From: Subbaiah Venkata <svenkata@google.com>
Signed-off-by: Avneesh Sachdev <avneesh@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@diac24.net>
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* zebra/rt_netlink.c:
- Pick up the hardware address of an interface when we receive a
netlink link change message. Extract code for parsing the
link-layer hardware address into a new function so we can reuse
it.
- netlink_routing_table(): Update to handle multipath routes.
- netlink_route_change(): Update to handle multipath routes. Fix
problem where the metric was not being read out.
* zebra/zebra_rib.[ch]: Extern nexthop_ipv4_ifindex_add() -- it is
now called from the netlink code.
From: Josh Bailey <joshb@google.com>
Signed-off-by: Avneesh Sachdev <avneesh@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@diac24.net>
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* lib/stream.[ch]:
- Add stream_set_endp(). This can be used to trim data (for
example, padding) at the end of a stream.
- Fix swapped 'getp' and 'endp' parameters in STREAM_WARN_OFFSETS.
From: Subbaiah Venkata <svenkata@google.com>
Signed-off-by: Avneesh Sachdev <avneesh@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@diac24.net>
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* lib/md5.[ch] Add implementation of HMAC-MD5 from RFC 2104.
From: Josh Bailey <joshb@google.com>
Signed-off-by: Avneesh Sachdev <avneesh@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@diac24.net>
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* lib/linklist.h
- Change the listnextnode, listhead and listtail macros so that
they allow the list pointer to be NULL.
- Modify the ALL_LIST_ELEMENTS* macros such that they clear the
data pointer at the beginning and end of the loop.
From: Josh Bailey <joshb@google.com>
Signed-off-by: Avneesh Sachdev <avneesh@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@diac24.net>
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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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* bgp_packet.c: (bgp_write) On BGP write, use TCP_CORK to provide hints to
kernel about TCP buffering. This will cause BGP packets to occur in
bigger chunks (full size MTU), improving performance and getting rid of
one of the problems reported in the UNH BGP conformance test.
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* sockunion.{c,h}: (sockopt_cork) wrapper for TCP_CORK socket option for
those platforms that provide it. For other platforms, it is just a nop.
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* bgpd: Rather than toggling socket in/out of non-block mode, just leave it
in nonblocking mode.
One exception is in bgp_notify which only happens just before close.
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* bgp_community.[ch]: (community_lookup) New helper function to look
up a community list in the hash table.
* bgp_routemap.c: A new community structure was being allocated for
every BGP update which matched a route map which set a community.
This behavior led to rapid growth in the memory consumed by bgpd.
Adding the communities to the hash table addresses the memory
growth, but may introduce a problem in modifying or deleting the
'set community' statement in the route map.
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Many show commands do not have support for multiple views and do not
treat different address families uniformly. The following changes add
a number of commands with support for views and rationalized treatment
of IPv4 v IPv6 and unicast v multicast (such as in JUNOS, IOS XR and
more recent versions of IOS).
* bgp_route.c: (bgp_show_community) Inserted a new second argument (the
name of the view) and the code to look up that name in the BGP structure.
The NULL argument in the call to bgp_show (indicating the default view)
was replaced by the specified view. The existing calls to
bgp_show_community had a NULL second argument inserted to make clear
that they refer to the default view.
(top level) Added new functions via the DEFUN and/or ALIAS macros (and
the associated command table entries) to add the commands
show bgp ipv4 (unicast|multicast)
show bgp ipv4 (unicast|multicast) A.B.C.D
show bgp ipv4 (unicast|multicast) A.B.C.D/M
show bgp ipv6 (unicast|multicast)
show bgp ipv6 (unicast|multicast) X:X::X:X
show bgp ipv6 (unicast|multicast) X:X::X:X/M
These show either the full BGP table or the specified route or
prefix for the given address family.
show bgp view WORD (ipv4|ipv6) (unicast|multicast) community
show bgp view WORD (ipv4|ipv6) (unicast|multicast) community \
(AA:NN|local-AS|no-advertise|no-export){1,4}
For the specified view and address family, these show entries
matching any community or the specified communit(y)(ies).
show bgp view WORD (ipv4|ipv6) (unicast|multicast) neighbors \
(A.B.C.D|X:X::X:X) (advertised-routes|received-routes)
For the specified view and address family, show the routes
advertised to or received from the given BGP neighbor.
show bgp [view WORD] ipv4 (unicast|multicast) \
rsclient (A.B.C.D|X:X::X:X)
show bgp [view WORD] ipv4 (unicast|multicast) \
rsclient (A.B.C.D|X:X::X:X) A.B.C.D
show bgp [view WORD] ipv4 (unicast|multicast) \
rsclient (A.B.C.D|X:X::X:X) A.B.C.D/M
show bgp [view WORD] ipv6 (unicast|multicast) \
rsclient (A.B.C.D|X:X::X:X)
show bgp [view WORD] ipv6 (unicast|multicast) \
rsclient (A.B.C.D|X:X::X:X) X:X::X:X
show bgp [view WORD] ipv6 (unicast|multicast) \
rsclient (A.B.C.D|X:X::X:X) X:X::X:X/M
For the specifed (optional) view and address family, show either
the full BGP table or the specified route or prefix for the given
route server client peer.
* bgp_vty.c: (top level) Added new functions via the DEFUN and/or ALIAS
macros (and the associated command table entries) to add the commands
show bgp [view WORD] (ipv4|ipv6) (unicast|multicast) summary
show bgp [view WORD] (ipv4|ipv6) (unicast|multicast) rsclient summary
For the specified (optional) view and address family, display
either the normal summary table for BGP peers, or the route server
client table showing the import and export policies.
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* configure.ac: Bump to 0.99.18
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* draft-ietf-idr-as-pathlimit doesn't seem to have gone anywhere, and its
author does not think it will make progress in IDR. Remove all support
introduced for it, but leave stubs for the commands to avoid breaking
any configurations.
Basically reverts cecab5e9725792e60a5e4b473e238a14cd85815d.
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* bgp_attr.c: (bgp_attr_ext_communities) Certain extended-community attrs
can leave attr->flag indicating ext-community is present, even though no
extended-community object has been attached to the attr structure. Thus a
null-pointer dereference can occur later.
(bgp_attr_community) No bug fixed here, but tidy up flow so it has same
form as previous.
Problem and fix thanks to anonymous reporter.
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* ospf6_route.c ([no_]debug_ospf6_route) Include memory as a debug
option. This allows ospf6 route memory debugging to be enabled or
disabled interactively or from a config file.
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* ospf6_route.c: (ospf6_route_best_next) Allows unlock route, even
when there's no next route. This is consistent with how
ospf6_route_next() behaves.
* ospf6_intra.c: (ospf6_intra_prefix_lsa_remove) Make sure the last
route considered is always unlocked. This is needed when the for
loop terminates because ospf6_route_is_prefix() returns zero.
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A clean exit makes it easier to use memory debuggers.
* ospf6_asbr.c: (ospf6_asbr_terminate) Add a function to do route map
cleanup.
* ospf6_lsa.c: (ospf6_lsa_terminate) Add a function to cleanup the lsa
handler vector.
* ospf6_main.c: (ospf6_exit) Add an function that causes ospf6d to
gracefully exit.
* ospf6_message.c: (ospf6_message_terminate) Add a function that frees
the send and receive buffers.
* ospf6_top.c: (ospf6_delete) Enable the ospf6_delete() function.
Disable ospf6 before freeing everything.
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* ospf6_area.c: (ospf6_area_delete) Get rid of unused code that refers
to a nonexistent function and structure member.
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* ospf6_area.c: Call ospf6_spf_table_finish() before deleting the spf
table. This ensures that the associated ospf6_vertex structures
are also freed.
* ospf6_spf.c: Only allocate a priority queue when a spf calculation
is actually performed. Also defer calling ospf6_spf_table_finish().
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* log.c: (closezlog) Also free the dynamically allocated filename when
a log is closed.
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if.c: (if_terminate) This adds a cleanup function that can be called
when a daemon exits, similar to vty_terminate().
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* bgp_attr.c: I observed while doing some debugging that even for simple
tests there was a lot of hash collisions for BGP attributes. Switch to
using Jhash rather than additive hashing. Probably overkill, but the
function is fast and available.
({attrhash,cluster,transit}_hask_key_make) convert to Jenkins hash,
instead of additive hash.
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* hash.{h,c}: (string_hash_make) Hash optimised for strings, current
implementation using Bernstein hash, which offers a good compromise
between distribution and performance.
* distribute.c: (distribute_hash_make) use previous instead of additive
string hash.
* if_rmap.c: (if_rmap_hash_make) ditto
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If the radix tree creates an extra interior node in bgp_node_get(),
it locks the interior node even though this node is not returned to
the caller, so it may never be unlocked. The lock prevents this node
from being deleted.
* bgpd/bgp_table.c: (bgp_node_get) Remove lock on interior node which
prevents proper node deletion
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* bgp_route.c: (route_vty_out*) The local prefix, metric and weight values
are all stored as uint32_t. Change the format to %u so that large values
are not displayed as negative integers.
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