December 2009 - Bird-users

BIRD in OpenWRT - patch
by Ondrej Zajicek 12 Apr '10

12 Apr '10

Hello Here is a patch for building BIRD in OpenWRT buildsystem. I hope it will be merged to OpenWRT soon. (package names are bird4, birdc4, bird6 and birdc6, not just bird). -- Elen sila lumenn' omentielvo Ondrej 'SanTiago' Zajicek (email: santiago(a)crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."

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[patch] kernel protocol learn on FreeBSD 7
by Eugene Perevyazko 02 Mar '10

02 Mar '10

Hello bird-users readers! I'm trying to use bird on PPP access-server running FreeBSD 7. The first problem I've met was bird not learning routes that are added and removed by ppp daemon based on Radius user-data. I've made a simple patch but not sure if it is full and correct. Can anyone review it? Especially I'm not sure what should be marked as KRT_SRC_REDIRECT and what are the consequences of not using this value. --- sysdep/bsd/krt-sock.c.old 2009-11-09 17:42:47.000000000 +0200 +++ sysdep/bsd/krt-sock.c 2009-11-09 17:48:58.000000000 +0200 @@ -269,6 +269,8 @@ int src; int flags = msg->rtm.rtm_flags; int addrs = msg->rtm.rtm_addrs; + pid_t sender_pid = msg->rtm.rtm_pid; + pid_t my_pid; int masklen = -1; if (!(flags & RTF_UP)) @@ -375,6 +377,12 @@ } src = KRT_SRC_UNKNOWN; /* FIXME */ + src = KRT_SRC_ALIEN; + my_pid = getpid(); + if (sender_pid == my_pid) + { + src = KRT_SRC_BIRD; + } e = rte_get_temp(&a); e->net = net; +++ sysdep/cf/bsd.h.old 2009-11-09 18:06:53.000000000 +0200 --- sysdep/cf/bsd.h 2009-11-09 17:38:21.000000000 +0200 @@ -7,7 +7,7 @@ */ #define CONFIG_AUTO_ROUTES -#undef CONFIG_SELF_CONSCIOUS +#define CONFIG_SELF_CONSCIOUS #undef CONFIG_MULTIPLE_TABLES #undef CONFIG_UNIX_IFACE -- Eugene Perevyazko

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New release 1.1.7
by Ondrej Filip 21 Dec '09

21 Dec '09

Hi! New version is ready. Santiago made a great job. This version includes some minor enhancements. Version 1.1.7 (2009-12-20) o Implements BGP Route Refresh (RFC 2918). o Implements route reload command. o Deep changes and bugfixes in pipe protocol. o Bugfix in OSPF premature aging of LSA. o Bugfix in OSPF next hop calculation. o Bugfix in core related to route withdraws. o Several minor bugfixes. All distro packages will follow soon. Ondrej

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bgp soft reconfiguration inbound
by Wolfgang Hennerbichler 16 Dec '09

16 Dec '09

Fellow Bird Users, I thought our bird installation was ready for prime-time as one thing caught my eye which I don't like at all, but hopefully you can help me out - we do bgp connections like this (only necessary stuff displayed): protocol bgp R1120x193_203_0_25 { local as myas; neighbor 193.203.0.25 as 1120; password "xyz"; import filter bgp_in_AS1120x193_203_0_25; export all; table T1120x193_203_0_25; rs client; start delay time 55; } filter bgp_in_AS1120x193_203_0_25 prefix set allnet; { # ... allnet = [ 193.171.255.32/27, 193.171.255.64/27, 192.92.125.0/24, 194.0.0.0/24 ]; if ! (net ~ allnet) then reject; accept; } Now I realized that if I changed the definition for 'allnet' and do a 'configure soft' these routes that are added or removed to 'allnet' are not rejected or added, because it seems that there is no bgp soft reconfiguration taking place (it works if I trigger a soft reconfiguration outbound on the peer router, or if I restart the protocol which causes bgp to flap). I know that nix.cz doesn't need this, as filtering is done in the pipe protocol, but we would really really like to filter at the very border, and if the filters change, I think a bgp soft reconfiguration inbound would be great. Is there a way to do a bgp soft reconfiguration, so that the routes are re-transmitted / re-calculated? Thanks for any help and have a nice weekend; Wolfgang -- www.vix.at | www.aco.net wh(a)univie.ac.at | WH844-RIPE Vienna University Computer Center

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Memory Usage of BIRD
by Wolfgang Hennerbichler 05 Dec '09

05 Dec '09

Hi Folks, I just made a little experiment: * let BIRD peer with a router that has Full Feed * letting BIRD eat Full Feed (and tweet) - memory footprint ~ 130 MB BTW (64 Bit Linux) * shutting the session down on the router-side * BIRD's memory consumption decreased to 128 MB, but was never freed again. So now I don't know if this is 'by design' (routes are marked dirty and overwritten on next usage) or a bug... Thanks for any replies; Wolfgang -- www.vix.at | www.aco.net wh(a)univie.ac.at | WH844-RIPE Vienna University Computer Center

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Howto enable Bird debug messages (DBG)
by Vonlanthen, Elmar 01 Dec '09

01 Dec '09

Hello all How can I enable the debug messages, printed with the macro DBG? I tried with: ./configure --enable-debug and adding: if test "$enable_debug" = yes ; then cat >>confdefs.h <<\_ACEOF #define DEBUGGING 1 + #define LOCAL_DEBUG 1 + #define GLOBAL_DEBUG 1 _ACEOF and starting with: bird -d ... or: bird -d -D /var/log/bird.debug But I never see the messages printed with "DBG". For example: sysdep/unix/main.c: DBG("Initializing.\n"); What do I do wrong? I use bird 1.1.6 on a Gentoo Linux system. Thanks for any help. Best regards Elmar

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