BIRD, Route Source and BSD

[Jean-Baptiste COUPIAC]

Hello list,

I'm a new in Bird word :).

I'm working on a Bird mock-up. I'm actually blocked on OSPF filters.

OSPF conf for First Router:
*protocol ospf OSPF {*
*        import filter NFRANCE_OSPF_IN;*
*        export filter NFRANCE_OSPF_OUT;*
*        rfc1583compat yes;*
*        area 0 {*
*                interface "xn1" {*
*                        type broadcast;*
*                };*
*                interface "xn2" {*
*                        stub;*
*                };*
*        };*
*};*


OSPF conf for Second Router:
*protocol ospf OSPF {*
*        import filter NFRANCE_OSPF_IN;*
*        export filter NFRANCE_OSPF_OUT;*
*        rfc1583compat yes;*
*        area 0 {*
*                interface "xn1" {*
*                        type broadcast;*
*                };*
*                interface "xn2" {*
*                        stub;*
*                };*
*        };*
*};*


Filters:
*filter NFRANCE_OSPF_IN {*

*                if  net ~ [80.247.224.0/20{24,32}
<http://80.247.224.0/20{24,32}>] && (source ~ [ RTS_OSPF_EXT1,
RTS_OSPF_EXT2 ])*
*                        then*
*                                {*
*                                print net, " is accepted => OSPF_IN Public
Nfrance";*
*                                accept;*
*                                }*
*                if  net ~ [0.0.0.0/0{30,30} <http://0.0.0.0/0{30,30}>] &&
(source ~ [ RTS_OSPF_EXT1, RTS_OSPF_EXT2 ])*
*                        then*
*                                {*
*                                print net, " is accepted => OSPF_IN
Interco /30";*
*                                accept;*
*                                }*
*                else*
*                                {*
*                                print net, " is rejected => non OSPF_IN
compliant";*
*                                reject;*
*                                }*
*                }*


80.247.227.2/24 is installed on Router 1, xn2 interface,
Export network 80.247.227.0/24 on router 1 is ok but Import on the another
router is KO.

Indeed,

If I use the condition:             *if  net ~ [80.247.224.0/20{24,32}
<http://80.247.224.0/20{24,32}>] && (source ~ [ RTS_OSPF_EXT1,
RTS_OSPF_EXT2 ])*
80.247.227.0/24 is rejected by the OSPF neighbor filter rule*
NFRANCE_OSPF_IN*
2016-11-25 16:31:28 <INFO> 80.247.227.0/24 is rejected => non OSPF_IN
compliant

If I use the condition:              *if  net ~ [80.247.224.0/20{24,32}
<http://80.247.224.0/20{24,32}>] *without *&& (source ~ [ RTS_OSPF_EXT1,
RTS_OSPF_EXT2 ])*
80.247.227.0/24 is accepted by the OSPF neighbor filter rule*
NFRANCE_OSPF_IN*
2016-11-25 16:42:18 <INFO> 80.247.227.0/24 is accepted => OSPF_IN Public
Nfrance

And when I check the bird route when network is accepted, I can see "OSPF"
bird> show  route
0.0.0.0/0          via 192.168.0.254 on xn0 [kernel1 16:35:00] * (10)
192.168.0.221/32   dev lo0 [kernel1 16:35:00] * (10)
*80.247.227.0/24 <http://80.247.227.0/24>    via 172.16.51.4 on xn1 [OSPF
16:42:18] * I (150/20) [192.168.0.223]*
172.16.51.1/32     dev lo0 [kernel1 16:35:00] * (10)
bird>

So I don't understand why *&& (source ~ [ RTS_OSPF_EXT1, RTS_OSPF_EXT2 ]) *does
not match when the rule is added to my filter ?

I use FreeBSD 10, Is there an issue on FBSD  regarding RTS_* ?

__

*Jean-Baptiste COUPIAC*
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