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| author | Pradosh Mohapatra <pmohapat@cumulusnetworks.com> | 2014-01-12 18:30:13 +0000 |
|---|---|---|
| committer | Vincent JARDIN <vincent.jardin@6wind.com> | 2014-02-10 09:37:30 +0100 |
| commit | 6ee06fa9ed91412cb745668d462031cdbe2642e0 (patch) | |
| tree | 107e951abc716c2ca15fbcc62bdb0858b35036e8 /lib/prefix.h | |
| parent | a83a1e9c2f035d3152451dcfc97ab13b4ac427b9 (diff) | |
| download | quagga-6ee06fa9ed91412cb745668d462031cdbe2642e0.tar.bz2 quagga-6ee06fa9ed91412cb745668d462031cdbe2642e0.tar.xz | |
bgpd: bgpd-set-v4-nexthop-for-v6-peering.patch
BGP: While advertising v4 prefixes over a v6 session, set the correct v4 nexthop.
ISSUE:
For an IPv6 peer, BGPd sets the local router-id as the next-hop's v4 address.
This is incorrect as the router-id may not be a valid next-hop to be included
in UPDATEs that contain v4 prefixes.
PATCH:
Set the v4 address in the next-hop field based on the interface that the
peering is on (directly connected interface or loopback).
Signed-off-by: Pradosh Mohapatra <pmohapat at cumulusnetworks.com>
Reviewed-by: Scott Feldman <sfeldma at cumulusnetworks.com>
Acked-by: Feng Lu <lu.feng@6wind.com>
Diffstat (limited to 'lib/prefix.h')
| -rw-r--r-- | lib/prefix.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/prefix.h b/lib/prefix.h index 7f0d3607..8c8992e8 100644 --- a/lib/prefix.h +++ b/lib/prefix.h @@ -196,4 +196,14 @@ extern const char *inet6_ntoa (struct in6_addr); extern int all_digit (const char *); +static inline int ipv4_martian (struct in_addr *addr) +{ + in_addr_t ip = addr->s_addr; + + if (IPV4_NET0(ip) || IPV4_NET127(ip) || IPV4_CLASS_DE(ip)) { + return 1; + } + return 0; +} + #endif /* _ZEBRA_PREFIX_H */ |