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* if.c: (if_dump) loop that doesn't do anything, wants to be
before the zlog of what it's meant to print out so all the connected
addresses get printed out. Trival: just a debug function
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* (general) Move functions in headers into files, to be compiled into
shared object files. Remove inline qualifier from functions. Let the
compiler do the work.
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...otherwise 4294967295 is not a valid value on 32bit systems
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IPV4_ADDR_SAME() wasn't passed the right union member, this could cause
a bug due to strict-aliasing. IPV6_ADDR_SAME() case got its fix before
the error could be created by macro upgrade.
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* lib/prefix.h
* IPV4_CLASS_DE(): make consistent with counterpart macros
* bgp_packet.c
* bgp_open_receive(): test using macro instead of ">="
* bgp_route.c
* bgp_update_rsclient(): idem
* bgp_update_main(): idem
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ZEBRA_HELLO message is used by routing daemons to inform zebra
what type of routes daemon will be announcing to zebra. Also
zebra uses route_type_oaths array to track which daemon announces
which protocol. Zebra mops up routes if daemon didn't for some
reason.
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ip_masklen() was likely to return incorrect results after being compiled
with -fstrict-aliasing (-O2, -O3, -Os)
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The new implementation makes use of a 64KB mapping table, which makes it
possible to compute masklen faster and with constant execution time. The
map also allows for additional version of the function, which can detect
errors in input argument.
The previous implementation had a variable cost of execution, which
depended on masklen in a non-linear manner, and at its worst (/31) was
4 times slower, than the new implementation. The only case of old
function just slightly outperforming the new one is /0, which is of
little practical interest.
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Experience with IPv4 counterpart of this function suggests, that
this way of type-punning is likely to cause errors.
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(This patch was modified to leave calls to stream_getl() in place, they
are necessary for the stream's internal pointer to advance to the
correct position. -- Denis)
Signed-off-by: Denis Ovsienko <infrastation@yandex.ru>
Fix gcc warnings about varables that are set but never used.
* bgpd/bgp_attr.c
* cluster_unintern(): ret
* transit_unintern(): ret
* bgp_attr_default_intern(): attre
* bgp_mp_reach_parse(): rd_high, rd_low
* bgpd/bgp_route.c
* bgp_announce_check_rsclient(): bgp
* bgpd/bgp_zebra.c
* zebra_read_ipv4(): ifindex
* zebra_read_ipv6(): ifindex
* bgpd/bgpd.c
* bgp_config_write_peer(): filter
* lib/distribute.c
* distribute_list_all(): dist
* distribute_list(): dist
* distribute_list_prefix_all(): dist
* distribute_list_prefix(): dist
* lib/if_rmap.c
* if_rmap(): if_rmap
* lib/vty.c
* vty_accept(): vty
* lib/zclient.c
* zclient_read(): ret
* zebra/irdp_interface.c
* if_group(): zi
* zebra/rt_netlink.c
* kernel_read(): ret, sock
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getaddrinfo returns a list of socket parameters for listening. it
will contain both IPv4 and IPv6 listening sockets. unless we use
IPV6_V6ONLY on the IPv6 ones, only the socket listed first will
work. if the IPv4 one came first, the IPv6 one would get an
"Address in use" error.
this functionality was already present for bgpd and its listening
sockets. as it is needed for vtys as well, make it a common helper.
Conflicts:
lib/sockunion.c
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this replaces most occurences of routing protocol lists by preprocessor
defines from route_types.h. the latter is autogenerated from
route_types.txt by a perl script (previously awk). adding a routing
protocol now is mostly a matter of changing route_types.txt and log.c.
Conflicts:
lib/route_types.awk
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lib/zclient.c: using of HAVE_TCP_ZEBRA in zclient_socket_*
definitions extended by else clause.
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All daemons modified to support custom path to zserv
socket.
lib: generalize a zclient connection
zclient_socket_connect added. zclient_socket and
zclient_socket_un were hidden under static expression.
"zclient_serv_path_set" modified.
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Make progname a string, and cast when calling asn1.
Remove variable set but never used.
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The if_dump code had empty loop, that caused set-never-used warning.
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If the vty_serv_sock_addrinfo is being used, then vty_serv_sock_family
is unsed. Fix by adjusting ifdef/else/endif
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Change sockunion_log() to not use strdup(). This fixes a small memory
leak that occurs on every failed connect(), and is simpler/cleaner.
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The delete_hook was being run after calling access list delete function.
This would cause ospf to dereference a NULL, in ospf_filter_update
because 'access->name' was already freed.
See also:
https://bugzilla.vyatta.com/show_bug.cgi?id=7654
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prefix2sockunion converts a struct prefix* to a union sockunion *;
prefix_common_bits counts the number of common bits in the prefix's
address part.
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IPv6 supports the same concept of differentiated service for routing
protocols as IPv4, but like too many things, the standards committee
decided that having two names for the same thing wasn't good enough and
introduced a third more generic term transport class.
The socket option to set transport class works the same as IPv4, but the
arguments are different.
* lib/sockopt.[ch]
* setsockopt_ipv6_tclass(): new function
* bgpd/bgp_network.c
* bgp_connect(): set socket option
* bgp_listener(): set socket option
* ospf6d/ospf6_network.c
* ospf6_set_transport_class(): new function
* ospf6_serv_sock(): set socket option
* ripngd/ripngd.c
* ripng_make_socket(): set socket option
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* lib/prefix.h
* IPV4_CLASS_DE(): new helper macro
* bgp_attr.c
* bgp_attr_nexthop(): add check for "partial" bit, refresh flag error
reporting, explain meaning of RFC4271 section 6.3 and implement it
Conflicts:
bgpd/bgp_attr.c
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- SAFI value 3 is reserved. It was assigned by RFC 2858 for a use
that was never fully implemented, so it is deprecated by this
document.
* zebra.h: rename macro
* bgp_fsm.c: (bgp_graceful_restart_timer_expire,
bgp_graceful_stale_timer_expire, bgp_stop, bgp_establish): update
* bgpd.c: (peer_nsf_stop): update
* bgp_open.c: (bgp_capability_vty_out): SAFI 3 isn't a recognized case
any more
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* log.[ch]
* mes_lookup: add a parameter with the name of the message list, print
the name in case of failure.
* LOOKUP macro: pass the name of the message list.
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(This commit is based on the patch from BZ#420, and should fix that bug.)
* configure.ac: detect availability of that API
* sockopt.c (setsockopt_ipv4_multicast): use it for join/leave IPv4
multicast groups
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* sockopt.c (setsockopt_ipv4_multicast): check for wrong optname with
assert(), rather than return an error.
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* sockopt.c (setsockopt_ipv4_multicast_if): fix missed line in
the previous commit.
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* sockopt.[ch] (setsockopt_ipv4_multicast): ifindex is now mandatory (all
non-ancient OSes can use it anyway), and if_addr parameter (the address
of the interface) is now gone. (setsockopt_ipv4_multicast_if):
IP_MULTICAST_IF processing moved to this new function
* ospf_network.c (ospf_if_add_allspfrouters, ospf_if_drop_allspfrouters,
ospf_if_add_alldrouters, ospf_if_drop_alldrouters, ospf_if_ipmulticast),
rip_interface.c (ipv4_multicast_join, ipv4_multicast_leave,
rip_interface_new): adapt to the new interface
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* sockopt.c (getsockopt_ifindex): "ifindex" was never used
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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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* 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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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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* 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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* 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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* 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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* bgpd: Connected table locks were being locked but not unlocked, such that
eventually a lock would exceed 2^31 and become negative, thus triggering
an assert later on.
* bgp_main.c: (bgp_exit) delete connected elements along with ifp's.
* bgp_nexthop.c: (bgp_nexthop_lookup{,_ipv6}) add missing unlocks
(bgp_multiaccess_check_v4) ditto
(bgp_connected_{add,delete}) Use a distinct memtype for bgp_connected_ref.
(bgp_scan_finish) reset the nexthop cache to clean it up when bgpd exits
* bgp_route.c: fix missing bgp_node unlocks
* lib/memtype.c: (memory_list_bgp) add MTYPE_BGP_CONN
* testing: has been tested for almost 2 months now.
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* lib/memory.c: (zrealloc) If is called with NULL pointer then it should
increment allocations because it behaves the same as zmalloc.
(zfree) is called with NULL pointer, it does nothing therefore allocation
count should not change.
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* lib/table.c: (route_node_match) fix overshoot that was causing this
function to go 1 bit too far and thus reading past end of prefix.
(route_node_lookup) be defensive - don't assume others will clean up
leaves when removing info.
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