Author: asomers
Date: Thu Sep 18 20:17:42 2014
New Revision: 271809
URL: http://svnweb.freebsd.org/changeset/base/271809
Log:
MFC 263779, except for the ATF test change.
Correct ARP update handling when the routes for network interfaces are
restricted to a single FIB in a multifib system.
Restricting an interface's routes to the FIB to which it is assigned (by
setting net.add_addr_allfibs=0) causes ARP updates to fail with "arpresolve:
can't allocate llinfo for x.x.x.x". This is due to the ARP update code hard
coding it's lookup for existing routing entries to FIB 0.
sys/netinet/in.c:
When dealing with RTM_ADD (add route) requests for an interface, use
the interface's assigned FIB instead of the default (FIB 0).
sys/netinet/if_ether.c:
In arpresolve(), enhance error message generated when an
lla_lookup() fails so that the interface causing the error is
visible in logs.
PR: kern/167947
Modified:
stable/9/sys/netinet/if_ether.c
stable/9/sys/netinet/in.c
Directory Properties:
stable/9/ (props changed)
stable/9/sys/ (props changed)
Modified: stable/9/sys/netinet/if_ether.c
==============================================================================
--- stable/9/sys/netinet/if_ether.c Thu Sep 18 20:17:27 2014
(r271808)
+++ stable/9/sys/netinet/if_ether.c Thu Sep 18 20:17:42 2014
(r271809)
@@ -326,8 +326,8 @@ retry:
if (la == NULL) {
if (flags & LLE_CREATE)
log(LOG_DEBUG,
- "arpresolve: can't allocate llinfo for %s\n",
- inet_ntoa(SIN(dst)->sin_addr));
+ "arpresolve: can't allocate llinfo for %s on %s\n",
+ inet_ntoa(SIN(dst)->sin_addr), ifp->if_xname);
m_freem(m);
return (EINVAL);
}
Modified: stable/9/sys/netinet/in.c
==============================================================================
--- stable/9/sys/netinet/in.c Thu Sep 18 20:17:27 2014 (r271808)
+++ stable/9/sys/netinet/in.c Thu Sep 18 20:17:42 2014 (r271809)
@@ -1366,8 +1366,9 @@ in_lltable_rtcheck(struct ifnet *ifp, u_
KASSERT(l3addr->sa_family == AF_INET,
("sin_family %d", l3addr->sa_family));
- /* XXX rtalloc1 should take a const param */
- rt = rtalloc1(__DECONST(struct sockaddr *, l3addr), 0, 0);
+ /* XXX rtalloc1_fib should take a const param */
+ rt = rtalloc1_fib(__DECONST(struct sockaddr *, l3addr), 0, 0,
+ ifp->if_fib);
if (rt == NULL)
return (EINVAL);
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