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| author | qingli <qingli@FreeBSD.org> | 2005-06-28 23:32:22 +0000 |
|---|---|---|
| committer | qingli <qingli@FreeBSD.org> | 2005-06-28 23:32:22 +0000 |
| commit | 37efc775b590475026ff6366785a1b78bcb697f5 (patch) | |
| tree | d4adf73bad1444fdc622195906349ade3ca6e145 /sys/net/route.c | |
| parent | 59032ef458fae9ee6d8a1bd23739f5d489a4d467 (diff) | |
| download | FreeBSD-src-37efc775b590475026ff6366785a1b78bcb697f5.zip FreeBSD-src-37efc775b590475026ff6366785a1b78bcb697f5.tar.gz | |
Require gateways for routes to be of the same address family as the
route itself.
It fixes a bug where an IPv4 route for example has an IPv6 gateway
specified:
route add 10.1.1.1 -inet6 fe80::1%fxp0
Destination Gateway Flags Refs Use Netif Expire
10.1.1.1 fe80::1%fxp0 UGHS 0 0 fxp0
The fix rejects these illegal combinations:
route: writing to routing socket: Invalid argument
add host 10.1.1.1: gateway fe80::1%fxp0: Invalid argument
Reviewed by: KAME jinmei@isl.rdc.toshiba.co.jp
Reviewed by: andre (mentor)
Approved by: re
MFC after: 5
Diffstat (limited to 'sys/net/route.c')
| -rw-r--r-- | sys/net/route.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/net/route.c b/sys/net/route.c index 57d0e53..1cb1c1c 100644 --- a/sys/net/route.c +++ b/sys/net/route.c @@ -744,7 +744,10 @@ rtrequest1(int req, struct rt_addrinfo *info, struct rtentry **ret_nrt) case RTM_ADD: if ((flags & RTF_GATEWAY) && !gateway) - panic("rtrequest: GATEWAY but no gateway"); + senderr(EINVAL); + if (dst && gateway && (dst->sa_family != gateway->sa_family) && + (gateway->sa_family != AF_UNSPEC) && (gateway->sa_family != AF_LINK)) + senderr(EINVAL); if (info->rti_ifa == NULL && (error = rt_getifa(info))) senderr(error); |
