April 2010 - Bird-users - Mailing Lists

how to confirm which capabilities have been negotiated
by Eiichiro Watanabe 24 Oct '11

24 Oct '11

Hello, Do we have an appropriate command to show which BGP capabilities have been negotiated on bird after a peer has been established? Of course, I known I can recognize when I look into packets captured, or confirm it on the neighbor router by using "show ip bgp neighbor x.x.x.x" command (in the case of CiscoIOS). it wouldn't be smart. Thanks, eiichiro -- ################################################### Eiichiro Watanabe Internet Multifeed Co.

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BIRD at MSK-IX
by Mikhail A. Grishin 27 May '11

27 May '11

Hi, We successfully finished the process of adaptation BIRD to MSK-IX network. Currently BIRD is running on both IPv4 Route Servers (version 1.2.0 with some patches from Ondrej Zajicek). Also we modified our public Looking Glass service. It's available via: http://www.msk-ix.ru/eng/lookingglass.html Thank you for help and cooperation! -- Mikhail A. Grishin E-mail: magr(a)ripn.net

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RE: Why filter not work for two cases?
by Владислав Гришин 13 Jul '10

13 Jul '10

Почему лучший маршрут в таблице маршрутизации из протокола статик а не из протокола BGP ? Vladislav Grishin

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BGP Error: No listening socket
by Владислав Гришин 10 Jul '10

10 Jul '10

Hi! I have been forced to change customisations of network interfaces on a server with bird. After modification bird.conf I has checked up availability of BGP neighbors. Everything is all right. ping ok. telnet <ip of bgp neighbor> 179 - ok. After restart bird see error in/var/log/messges May 12 10:03:01 border-t2 bird: Reconfiguring May 12 10:03:01 border-t2 bird: Enabling protocol bgpfiord May 12 10:03:01 border-t2 bird: Enabling protocol bgpabonent May 12 10:03:01 border-t2 bird: Reconfigured May 12 10:03:01 border-t2 bird: sk_open: bind: Cannot assign requested address May 12 10:03:01 border-t2 bird: BGP: Unable to open listening socket May 12 10:03:01 border-t2 bird: sk_open: bind: Cannot assign requested address May 12 10:03:01 border-t2 bird: BGP: Unable to open listening socket OSPF the protocol works perfectly. BGP no. [root@border-t2 etc]# ping 93.191.9.205 PING 93.191.9.205 (93.191.9.205) 56(84) bytes of data. 64 bytes from 93.191.9.205: icmp_seq=1 ttl=64 time=0.799 ms 64 bytes from 93.191.9.205: icmp_seq=2 ttl=64 time=0.824 ms 64 bytes from 93.191.9.205: icmp_seq=3 ttl=64 time=0.836 ms --- 93.191.9.205 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 0.799/0.819/0.836/0.036 ms [root@border-t2 etc]# bird> show protocols myospf name proto table state since info myospf OSPF master up 09:37 Running bird> bird> show protocols bgpabonent name proto table state since info bgpabonent BGP testable down 10:02 Error: No listening socket bird> bird> show protocols bgpfiord name proto table state since info bgpfiord BGP master down 10:02 Error: No listening socket bird> [root@border-t2 ~]# birdc BIRD 1.2.3 ready. bird> show interfaces lo up (index=1) MultiAccess AdminUp LinkUp Loopback Ignored MTU=16436 127.0.0.1/8 (Primary, broadcast 127.255.255.255, scope host) eth0 DOWN (index=2) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 eth1 DOWN (index=3) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 eth2 up (index=4) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 10.16.1.73/24 (Primary, broadcast 10.16.1.255, scope site) eth0.20 up (index=5) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 192.168.20.1/24 (Primary, broadcast 192.168.20.255, scope site) eth0.701 up (index=6) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 93.191.9.206/30 (Primary, broadcast 93.191.9.207, opposite 93.191.9.205, scope univ) <-----FOR bgpfiord eth1.10 up (index=8) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 192.168.10.1/24 (Primary, broadcast 192.168.10.255, scope site) eth1.550 up (index=9) <------FOR OSPF and bgpabonent MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 10.10.1.2/25 (Primary, broadcast 10.10.1.127, scope site) sit0 DOWN (index=10) MultiAccess AdminUp LinkDown MTU=1480 bird> bird> show interfaces summary interface state address lo up 127.0.0.1/8 eth0 DOWN eth1 DOWN eth2 up 10.16.1.73/24 eth0.20 up 192.168.20.1/24 eth0.701 up 93.191.9.206/30 <--for bgpfiord eth1.10 up 192.168.10.1/24 eth1.550 up 10.10.1.2/25 <--for bgpabonent and myospf sit0 DOWN bird> I can not understand in any way that happens? What to check up? Vladislav Grishin

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[PATCH 1/2] flex: Avoid REJECT name conflict.
by Joakim Tjernlund 17 May '10

17 May '10

REJECT is a reserved word in flex and REJECT is also used as %token in bison grammar. Rename REJECT to Reject in bison grammar to avoid name conflict. Same thing for ECHO but that does not seem to cause any conflicts ATM so leave as is. Also delete some dead code in flex output by using the apropiate %option statements. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund(a)transmode.se> --- conf/cf-lex.l | 5 +++-- filter/config.Y | 4 ++-- proto/static/config.Y | 4 ++-- 3 files changed, 7 insertions(+), 6 deletions(-) diff --git a/conf/cf-lex.l b/conf/cf-lex.l index 3fe3c2e..6612d3c 100644 --- a/conf/cf-lex.l +++ b/conf/cf-lex.l @@ -25,7 +25,6 @@ */ %{ -#undef REJECT /* Avoid name clashes */ #include <errno.h> #include <stdlib.h> @@ -71,12 +70,14 @@ linpool *cfg_mem; int (*cf_read_hook)(byte *buf, unsigned int max); #define YY_INPUT(buf,result,max) result = cf_read_hook(buf, max); -#define YY_NO_UNPUT + #define YY_FATAL_ERROR(msg) cf_error(msg) %} %option noyywrap +%option nounput +%option noinput %x COMMENT CCOMM CLI diff --git a/filter/config.Y b/filter/config.Y index 7723658..cab5dbe 100644 --- a/filter/config.Y +++ b/filter/config.Y @@ -28,7 +28,7 @@ static int make_pair(int i1, int i2) CF_DECLS CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN, - ACCEPT, REJECT, ERROR, QUITBIRD, + ACCEPT, Reject, ERROR, QUITBIRD, INT, BOOL, IP, PREFIX, PAIR, QUAD, SET, STRING, BGPMASK, BGPPATH, CLIST, IF, THEN, ELSE, CASE, TRUE, FALSE, @@ -506,7 +506,7 @@ term: break_command: QUITBIRD { $$ = F_QUITBIRD; } | ACCEPT { $$ = F_ACCEPT; } - | REJECT { $$ = F_REJECT; } + | Reject { $$ = F_REJECT; } | ERROR { $$ = F_ERROR; } | PRINT { $$ = F_NOP; } | PRINTN { $$ = F_NONL; } diff --git a/proto/static/config.Y b/proto/static/config.Y index a7e5016..20f07ed 100644 --- a/proto/static/config.Y +++ b/proto/static/config.Y @@ -16,7 +16,7 @@ static struct static_route *this_srt; CF_DECLS -CF_KEYWORDS(STATIC, ROUTE, VIA, DROP, REJECT, PROHIBIT, PREFERENCE) +CF_KEYWORDS(STATIC, ROUTE, VIA, DROP, Reject, PROHIBIT, PREFERENCE) CF_GRAMMAR @@ -54,7 +54,7 @@ stat_route: add_tail(&((struct static_config *) this_proto)->iface_routes, &this_srt->n); } | stat_route0 DROP { this_srt->dest = RTD_BLACKHOLE; } - | stat_route0 REJECT { this_srt->dest = RTD_UNREACHABLE; } + | stat_route0 Reject { this_srt->dest = RTD_UNREACHABLE; } | stat_route0 PROHIBIT { this_srt->dest = RTD_PROHIBIT; } ; -- 1.6.4.4

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Xtonlsab bug
by Joakim Tjernlund 30 Apr '10

30 Apr '10

Ondrej, this looks buggy: +static inline void htonlsab(void *h, void *n, u16 len) { memcpy(n, h, len); }; +static inline void ntohlsab(void *n, void *h, u16 len) { memcpy(h, n, len); }; memcpy is not defined to handle overlapping memory. Best to add: if (n != h) memcpy(...) Might as well do that for these too: +static inline void htonlsah(struct ospf_lsa_header *h, struct ospf_lsa_header *n) { *n = *h; }; +static inline void ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h) { *h = *n; };

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CLI ?
by Joakim Tjernlund 28 Apr '10

28 Apr '10

Tried the CLI(birdc) and I am a bit confused as to whait it can do. I only see this when I press ?: bird> ? configure [soft] ["<file>"] Reload configuration debug ... Control protocol debugging via BIRD logs disable <protocol> | "<pattern>" | all Disable protocol down Shut the daemon down dump ... Dump debugging information echo [all | off | <mask>] [<buffer-size>] Configure echoing of log messages enable <protocol> | "<pattern>" | all Enable protocol exit Exit the client help Description of the help system mrtdump ... Control protocol debugging via MRTdump files quit Quit the client reload <protocol> | "<pattern>" | all Reload protocol restart <protocol> | "<pattern>" | all Restart protocol restrict Restrict current CLI session to safe commands show ... Show status information Not a lot, seems that the CLI only can do very limited configuration or am I missing something here. Jocke

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Patch ping
by Joakim Tjernlund 27 Apr '10

27 Apr '10

Haven't seen any action on this patch, forgotten? http://marc.info/?l=bird-users&m=127200916013140&w=2

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[PATCH] flex: Kill warning
by Joakim Tjernlund 27 Apr '10

27 Apr '10

This kills: cf-lex.c:1874: warning: 'yy_fatal_error' defined but not used Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund(a)transmode.se> --- conf/cf-lex.l | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/conf/cf-lex.l b/conf/cf-lex.l index 6612d3c..82f4c52 100644 --- a/conf/cf-lex.l +++ b/conf/cf-lex.l @@ -71,7 +71,7 @@ int (*cf_read_hook)(byte *buf, unsigned int max); #define YY_INPUT(buf,result,max) result = cf_read_hook(buf, max); -#define YY_FATAL_ERROR(msg) cf_error(msg) +#define YY_FATAL_ERROR(msg) do {cf_error(msg); if(0) yy_fatal_error(msg); } while(0) %} -- 1.6.4.4

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fletcher checksum
by Joakim Tjernlund 27 Apr '10

27 Apr '10

I think I mentioned this in passing but the fletcher checksum impl. is fragile. Try changing "u16 length" to "u32 length" and watch it break for no apparent reason. Jocke

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