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path: root/sysdep/unix/io.c
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2017-12-07Merge commit '7b2c5f3d2826e3175bf31b1c36056c9efc587a2b' into int-newOndrej Zajicek (work)
2017-12-07Timers: Revert temporary names and remove old timer.hOndrej Zajicek (work)
2017-12-07Timers: Fix TBF and some last remainsOndrej Zajicek (work)
2017-12-07Sysdep: Remove old timer codeOndrej Zajicek (work)
2017-12-07Timers: Add typecast to unit-converting macrosOndrej Zajicek (work)
2017-12-07Timers: Parse and format functions for microsecond timesOndrej Zajicek (work)
Date/time output (e.g. in logs, show commands) can use %f to specify subsecond time. By default, millisecond precision is used in output.
2017-12-07Timers: Replace old timers with microsecond timersOndrej Zajicek (work)
The old timer interface is still kept, but implemented by new timers. The plan is to switch from the old inteface to the new interface, then clean it up.
2017-12-07Timers: Integrate microsecond timers to the main loopOndrej Zajicek (work)
2017-12-07Timers: Split microsecond timers from BFD code to libOndrej Zajicek (work)
2017-09-06Basic VRF supportOndrej Zajicek (work)
Add basic VRF (virtual routing and forwarding) support. Protocols can be associated with VRFs, such protocols will be restricted to interfaces assigned to the VRF (as reported by Linux kernel) and will use sockets bound to the VRF. E.g., different multihop BGP instances can use diffent kernel routing tables to handle BGP TCP connections. The VRF support is preliminary, currently there are several limitations: - Recent Linux kernels (4.11) do not handle correctly sockets bound to interaces that are part of VRF, so most protocols other than multihop BGP do not work. This will be fixed by future kernel versions. - Neighbor cache ignores VRFs. Breaks config with the same prefix on local interfaces in different VRFs. Not much problem as single hop protocols do not work anyways. - Olock code ignores VRFs. Breaks config with multiple BGP peers with the same IP address in different VRFs. - Incoming BGP connections are not dispatched according to VRFs. Breaks config with multiple BGP peers with the same IP address in different VRFs. Perhaps we would need some kernel API to read VRF of incoming connection? Or probably use multiple listening sockets in int-new branch. - We should handle master VRF interface up/down events and perhaps disable associated protocols when VRF goes down. Or at least disable associated interfaces. - Also we should check if the master iface is really VRF iface and not some other kind of master iface. - BFD session request dispatch should be aware of VRFs. - Perhaps kernel protocol should read default kernel table ID from VRF iface so it is not necessary to configure it. - Perhaps we should have per-VRF default table.
2017-05-23Minor cleanups and fixesOndrej Zajicek (work)
2017-05-16Minor autoconf cleanup and documentation updateOndrej Zajicek (work)
2017-05-09Merge branch 'master' into int-newOndrej Zajicek (work)
2017-05-09Minor autoconf cleanup and documentation updateOndrej Zajicek (work)
2017-02-08Merge branch 'master' into int-newOndrej Zajicek (work)
2016-12-20Netlink: fix occasional netlink hangs on busy machinesJan Moskyto Matejka
2016-12-07Merge branch 'int-new-rpki-squashed' (early part) into int-newJan Moskyto Matejka
2016-12-07BGP redesignOndrej Zajicek (work)
Integrated and extensible BGP with generalized AFI handling, support for IPv4+IPv6 AFI and unicast+multicast SAFI.
2016-12-07LibSSH may be switched off together with RPKIJan Moskyto Matejka
2016-12-07SSH: Commented quirk based on undocumented behavior of LibSSHJan Moskyto Matejka
2016-12-07RPKI protocol with one cache server per protocolPavel Tvrdík
The RPKI protocol (RFC 6810) using the RTRLib (http://rpki.realmv6.org/) that is integrated inside the BIRD's code. Implemeted transports are: - unprotected transport over TCP - secure transport over SSHv2 Example configuration of bird.conf: ... roa4 table r4; roa6 table r6; protocol rpki { debug all; # Import both IPv4 and IPv6 ROAs roa4 { table r4; }; roa6 { table r6; }; # Set cache server (validator) address, # overwrite default port 323 remote "rpki-validator.realmv6.org" port 8282; # Overwrite default time intervals retry 10; # Default 600 seconds refresh 60; # Default 3600 seconds expire 600; # Default 7200 seconds } protocol rpki { debug all; # Import only IPv4 routes roa4 { table r4; }; # Set cache server address to localhost, # use default ports tcp => 323 or ssh => 22 remote 127.0.0.1; # Use SSH transport instead of unprotected transport over TCP ssh encryption { bird private key "/home/birdgeek/.ssh/id_rsa"; remote public key "/home/birdgeek/.ssh/known_hosts"; user "birdgeek"; }; } ...
2016-11-08Merge branch 'master' into int-newOndrej Zajicek (work)
2016-11-08Minor code cleanupsOndrej Zajicek (work)
2016-11-08Merge tag 'v1.6.2' into int-newOndrej Zajicek (work)
2016-11-01Build: switch on -Wextra, get rid of most of the warningsJan Moskyto Matejka
There are several unresolved -Wmissing-field-initializers on older versions of GCC than 5.1, all of them false positive.
2016-09-29Kernel socket missing err_hook fixJan Moskyto Matejka
Thanks to Tim Weippert for bugreport.
2016-08-16whitespace fixesOndřej Surý
2016-06-08Fix declaration of shared global variables async_*Pavel Tvrdik
In a header file write it with extern keyword. And in one of the *.c file declare it without extern keyword.
2016-05-30Unix IO: Tried to fix strange behavior after POLLHUP or POLLERR.Jan Moskyto Matejka
2016-05-24After-master-merge simple fixes.Jan Moskyto Matejka
BSD lib/setkey.h and lib/sysio.h #include fixes. OpenBSD's flex needs -o param without space. V6ONLY for SK_IP fix.
2016-05-17IO: Minor changes in socket AF handingOndrej Zajicek (work)
AF can be specified implicitly by saddr or daddr, flags SKF_V4ONLY and SKF_V6ONLY are to be removed.
2016-05-12Merge remote-tracking branch 'origin/master' into int-newOndrej Zajicek (work)
2016-05-12Miscellaneous minor fixesOndrej Zajicek (work)
2016-05-12Prog Doc: Complete several missing parametersPavel Tvrdik
2016-05-10Merge branch 'int-new' into int-new-mergedJan Moskyto Matejka
2016-05-10Build system reworked to one global Makefile with includes and no nestingJan Moskyto Matejka
Also removed the lib-dir merging with sysdep. Updated #include's accordingly. Fixed make doc on recent Debian together with moving generated doc into objdir. Moved Makefile.in into root dir Retired all.o and birdlib.a Linking the final binaries directly from all the .o files.
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)
2016-04-13BSD: 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.
2016-04-08Merge branch 'master' into int-new-channelsJan Moskyto Matejka
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.
2016-03-30IO/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.
2016-03-18Unix: 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().
2016-03-15Poll: 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.
2016-01-27io.c: fix reads from uninitialized memoryPavel Tvrdík
2016-01-11Hidden AF_INET* inside sysdep/Jan Moskyto Matejka
2015-12-22Better fix of missing AF_INET6? definition in lib/socket.hJan Moskyto Matejka
Moved the code to sysdep.
2015-12-19Removed BITS_PER_IP_ADDRESS, MAX_PREFIX_LENGTH, BIRD_AFJan Moskyto Matejka
Explicit setting of AF_INET(6|) in IP socket creation. BFD set to listen on v6, without setting the V6ONLY flag to catch both v4 and v6 traffic. Squashing and minor changes by Ondrej Santiago Zajicek
2015-11-03IO: Fix the previous bugfixOndrej Zajicek (work)
I should check it after making some trivial changes. The original patch from Alexander has it right.