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| author | Ryan Stone <rstone@FreeBSD.org> | 2018-02-21 19:13:23 +0000 |
|---|---|---|
| committer | Ryan Stone <rstone@FreeBSD.org> | 2018-02-21 19:13:23 +0000 |
| commit | b3b6ff23e70ef5c1551941463a561447654402cb (patch) | |
| tree | 3684e9a3fe51aba028fdfc1b1f4279358f0e38f9 /sys | |
| parent | 81ad57b1b86a564140a59992e4d7a04a9090df32 (diff) | |
| download | src-b3b6ff23e70ef5c1551941463a561447654402cb.tar.gz src-b3b6ff23e70ef5c1551941463a561447654402cb.zip | |
Allow route change requests to not specify the gateway.
Only require a gateway to be specified on a route add request. On
a route change request that does not specify the gateway, the
gateway will remain the same. This allows changing other route
parameters without having to re-specifying the gateway, like in
"route change 10.0.0.0/8 -mtu 9000".
Update the route(8) manpage to explicitly call out this usage
as being supported.
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon
Reviewed By: eugen (rtsock.c change), rgrimes
Differential Revision: https://reviews.freebsd.org/D14291
Notes
Notes:
svn path=/head/; revision=329743
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/net/rtsock.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 26b888f21532..e21af57b40de 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -674,12 +674,15 @@ route_output(struct mbuf *m, struct socket *so, ...) case RTM_ADD: case RTM_CHANGE: - if (info.rti_info[RTAX_GATEWAY] == NULL) - senderr(EINVAL); + if (rtm->rtm_type == RTM_ADD) { + if (info.rti_info[RTAX_GATEWAY] == NULL) + senderr(EINVAL); + } saved_nrt = NULL; /* support for new ARP code */ - if (info.rti_info[RTAX_GATEWAY]->sa_family == AF_LINK && + if (info.rti_info[RTAX_GATEWAY] != NULL && + info.rti_info[RTAX_GATEWAY]->sa_family == AF_LINK && (rtm->rtm_flags & RTF_LLDATA) != 0) { error = lla_rt_output(rtm, &info); #ifdef INET6 |