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2016-07-19Babel: Send wildcard retractions on shutdown and startupOndrej Zajicek (work)
This makes BIRD send a wildcard retraction on all interfaces before shutting down and right after starting up. This helps ensure that neighbours will discard the announced routes as soon as possible, rather than only after the normal timeout procedures. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19Babel: Rework handling of retractionsOndrej Zajicek (work)
An update with wildcard AE and infinite metric should be treated as a global retraction of all prefixes announced by that neighbour, per section 4.4.9 of the RFC. In addition, router ID and seqno in retraction updates should be ignored. This reworks the handling of retractions and adjusts the parser to handle all this correctly. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19Babel: Documentation updatesOndrej Zajicek (work)
This updates the documentation to correctly mention Babel when protocols are listed, and adds examples and route attribute documentation to the Babel section of the docs. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19Babel: Make sure intervals do not overflowOndrej Zajicek (work)
Intervals are carried as 16-bit centisecond values, but kept internally in 16-bit second values, which causes a potential for overflow. This adds some checks to make sure this does not happen. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-17Prepare for longer interface names - clean up of the code.Ondrej Filip
2016-07-11BGP: Fix extended messagesOndrej Zajicek (work)
Change attribute length limit to handle extended (64 kB) messages. Do not mix updates and withdraws (RFC 7606).
2016-07-11Log: Fix error handling of debug file openOndrej Zajicek (work)
Logging is not yet initialized, we have to use fprintf() here. Thanks to Pavel Tvrdik for noticing and debugging it.
2016-07-01Filter: Fixes reconfiguration with last_nonaggregated operatorOndrej Zajicek (work)
2016-06-29BGP: Skip empty path segments in received AS_PATHOndrej Zajicek (work)
Although RFC 4271 does not forbid empty path segments, they are useless and some implementations consider them invalid. It is clarified in RFC 7606, specifying that AS_PATH with empty segment is considered malformed.
2016-06-27cppcheck: fix va_end() functionsPavel Tvrdík
2016-06-09Filters: Fixes pm_same() w.r.t. ASN ranges and ASN expressionsOndrej Zajicek (work)
This is necessary for proper detection of filter changes during reconfigurations.
2016-06-08Add AS# ranges to bgpmask.Ondrej Filip
2016-06-04Small typo in documentation example, submitted by Felix Eckhofer.Ondrej Filip
2016-05-30Unix IO: Tried to fix strange behavior after POLLHUP or POLLERR.Jan Moskyto Matejka
2016-05-12We don't need bvsnprintf() in BIRD clientOndrej Zajicek (work)
2016-05-12Prog Doc: Complete several missing parametersPavel Tvrdik
2016-05-12User Doc: Fix several typing errorPavel Tvrdik
2016-05-10netlink: update struct msghdrStijn Tintel
The netlink code assumes an order for the members of struct msghdr. This breaks recvmsg and sendmsg with musl libc on mips64. Fix this by using designated initializers instead. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2016-05-03Initialize variable ifr in sk_setup()Pavel Tvrdik
==00:00:00:02.831 2468== Syscall param socketcall.setsockopt(optval) points to uninitialised byte(s) ==00:00:00:02.831 2468== at 0x513BDEA: setsockopt (in /usr/lib/libc-2.23.so) ==00:00:00:02.831 2468== by 0x45C7AF: sk_setup (io.c:1216) ==00:00:00:02.831 2468== by 0x45CDFF: sk_open (io.c:1417) ==00:00:00:02.831 2468== by 0x44B562: rip_open_socket (packets.c:740) ==00:00:00:02.831 2468== by 0x4481A7: rip_iface_locked (rip.c:616) ==00:00:00:02.831 2468== by 0x4133E4: olock_run_event (locks.c:177) ==00:00:00:02.831 2468== by 0x45A6DE: ev_run (event.c:85) ==00:00:00:02.831 2468== by 0x45A7AD: ev_run_list (event.c:142) ==00:00:00:02.831 2468== by 0x45E0FC: io_loop (io.c:2066) ==00:00:00:02.831 2468== by 0x463B56: main (main.c:845) ==00:00:00:02.831 2468== Address 0xffefffd24 is on thread 1's stack ==00:00:00:02.831 2468== in frame #1, created by sk_setup (io.c:1188) ==00:00:00:02.831 2468== Uninitialised value was created by a stack allocation ==00:00:00:02.831 2468== at 0x45C6BB: sk_setup (io.c:1188)
2016-04-29Doc: Minor fixv1.6.0Ondrej Zajicek (work)
2016-04-29NEWS and version updateOndrej Zajicek (work)
2016-04-28Add the Babel routing protocol (RFC 6126)Ondrej Zajicek (work)
This patch implements the IPv6 subset of the Babel routing protocol. Based on the patch from Toke Hoiland-Jorgensen, with some heavy modifications and bugfixes. Thanks to Toke Hoiland-Jorgensen for the original patch.
2016-04-13BSD: Add the IPsec SA/SP database entries controlOndrej Zajicek (work)
Add code for manipulation with TCP-MD5 keys in the IPsec SA/SP database at FreeBSD systems. Now, BGP MD5 authentication (RFC 2385) keys are handled automatically on both Linux and FreeBSD. Based on patches from Pavel Tvrdik.
2016-04-11Documentation updateOndrej Zajicek (work)
2016-04-08Direct: Implement check link for direct protocolOndrej Zajicek (work)
When enabled, direct protocol generates routes only if the underlying link state is up.
2016-04-07Main: Add local optionOndrej Zajicek (work)
Add option that changes default paths for config file and control socket to the current working directory.
2016-04-07Nest: Reset export route counter during graceful restartOndrej Zajicek (work)
Counter exp_routes is increased during initial route feed after GR recovery, so it has to start with zero, otherwise BIRD will end with double value in exp_routes.
2016-04-06IO: Avoid multiple event cycles in one loop cycle.Ondrej Zajicek (work)
Event cycle may took too much time and trigger next timer events, so avoid cycling between timer and event cycles inside the loop cycle.
2016-04-06IO: Replace RX priority heuristic with explicit markOndrej Zajicek (work)
In BIRD, RX has lower priority than TX with the exception of RX from control socket. The patch replaces heuristic based on socket type with explicit mark and uses it for both control socket and BGP session waiting to be established. This should avoid an issue when during heavy load, outgoing connection could connect (TX event), send open, but then failed to receive OPEN / establish in time, not sending notifications between and therefore got hold timer expired error from the neighbor immediately after it finally established the connection.
2016-04-06KRT: Fix route learn scan when route changedOndrej Zajicek (work)
When a kernel route changed, function krt_learn_scan() noticed that and replaced the route in internal kernel FIB, but after that, function krt_learn_prune() failed to propagate the new route to the nest, because it confused the new route with the (removed) old best route and decided that the best route did not changed. Wow, the original code (and the bug) is almost 17 years old.
2016-03-30IO/Poll: fix mistaken variable mergeJan Moskyto Matejka
The events variable is used in the short loop decision. The reasons are not much clear, keeping this to keep the former behaviour.
2016-03-23Birdlib: Modify lists to avoid problems with pointer aliasing rulesJan Moskyto Matejka
The old linked list implementation used some wild typecasts and required GCC option -fno-strict-aliasing to work properly. This patch fixes that. However, we still keep the option due to other potential problems. (Commited by Ondrej Santiago Zajicek)
2016-03-23Birdlib: Do cleanups after remove/freeOndrej Zajicek (work)
To avoid byzantine behavior in case of some errors, linked lists are cleared after rem_node() and resource headers are cleared after rfree().
2016-03-23OSPF: Fix bogus LSA ID collisions between received and originated LSAsOndrej Zajicek (work)
After restart, LSAs locally originated by the previous instance are received from neighbors. They are installed to LSA db and flushed. If export of a route triggers origination of a new external LSA before flush of the received one is complete, the check in ospf_originate_lsa() causes origination to fail (because en->nf is NULL for the old LSA and non-NULL for the new LSA). The patch fixes this by updating the en->nf for LSAs being flushed (as is already done for empty ones). Generally, en->nf field deserves some better description in the code. Thanks to Jigar Mehta for analyzing the problem.
2016-03-23Minor changes in documentationOndrej Zajicek (work)
2016-03-23OSPF: Fix reading from freed memoryOndrej Zajicek (work)
Thanks to Pavel Tvrdik for noticing it.
2016-03-22Merge remote-tracking branch 'origin/poll'Jan Moskyto Matejka
2016-03-18Unix: Substituted select -> poll also in congestion checkerJan Moskyto Matejka
It does strange things when even one fd larger than FD_SETSIZE is passed to select().
2016-03-17RIP: fix typo in configuration at rx length optPavel Tvrdík
2016-03-17BGP: Add documentaion for extended messagesPavel Tvrdík
2016-03-15Poll: Prevent the improbable case of EAGAIN after POLLINJan Moskyto Matejka
2016-03-11Unix: Rework of select-loop to poll-loopJan Moskyto Matejka
This should lift the limit of FD_SETSIZE and allow more than 1024 fd's. FD_SETSIZE limit doesn't matter now when creating new sockets.
2016-02-25Merge branch 'master' of gitlab.labs.nic.cz:labs/birdJan Moskyto Matejka
2016-02-25OSPF: Multicast ability is irrelevant for stub interfacesOndrej Zajicek (work)
2016-02-25All the current pthread implementations are OK and working with us.Jan Moskyto Matejka
No more need to disable pthread for specific BSD's.
2016-02-16Filter: Implement last_nonaggregated operator on bgp_pathOndrej Zajicek (work)
2016-02-11Unix: Fix bug in syslog name handlingOndrej Zajicek (work)
Pointer to current_log_name has to be changed even if the name is the same, because the old one will be invalid/freed after reconfiguration.
2016-02-11BGP: Fix bug in incoming connection handlingOndrej Zajicek (work)
When a BGP session was established by an outgoing connection with Graceful Restart behavior negotiated, a pending incoming connection in OpenSent state, and another incoming connection was received, then the outgoing connection (and whole BGP session) was closed, but the old incoming connection was just overwritten by the new one. That later caused a crash when the hold timer from the old connection fired.
2015-11-25BGP: Update capability number from IANA for extended messagesOndrej Zajicek (work)
2015-11-24MD5: Mormalize naming stylePavel Tvrdík