Date: Thu, 2 Apr 2020 20:06:37 +0000 (UTC) From: "Alexander V. Chernikov" <melifaro@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r359580 - head/sys/netinet Message-ID: <202004022006.032K6bOb043396@repo.freebsd.org>
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Author: melifaro Date: Thu Apr 2 20:06:37 2020 New Revision: 359580 URL: https://svnweb.freebsd.org/changeset/base/359580 Log: Use interface fib for proxyarp checks. Before the change, proxyarp checks for src and dst addresses were performed using default fib, breaking multi-fib scenario. PR: 245181 Submitted by: Scott Aitken (original version) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D24244 Modified: head/sys/netinet/if_ether.c Modified: head/sys/netinet/if_ether.c ============================================================================== --- head/sys/netinet/if_ether.c Thu Apr 2 20:02:33 2020 (r359579) +++ head/sys/netinet/if_ether.c Thu Apr 2 20:06:37 2020 (r359580) @@ -1044,7 +1044,11 @@ reply: (void)memcpy(ar_tha(ah), ar_sha(ah), ah->ar_hln); (void)memcpy(ar_sha(ah), enaddr, ah->ar_hln); } else { - struct llentry *lle = NULL; + /* + * Destination address is not ours. Check if + * proxyarp entry exists or proxyarp is turned on globally. + */ + struct llentry *lle; sin.sin_addr = itaddr; lle = lla_lookup(LLTABLE(ifp), 0, (struct sockaddr *)&sin); @@ -1061,8 +1065,8 @@ reply: if (!V_arp_proxyall) goto drop; - /* XXX MRT use table 0 for arp reply */ - if (fib4_lookup_nh_basic(0, itaddr, 0, 0, &nh4) != 0) + if (fib4_lookup_nh_basic(ifp->if_fib, itaddr, 0, 0, + &nh4) != 0) goto drop; /* @@ -1083,8 +1087,8 @@ reply: * wrong network. */ - /* XXX MRT use table 0 for arp checks */ - if (fib4_lookup_nh_basic(0, isaddr, 0, 0, &nh4) != 0) + if (fib4_lookup_nh_basic(ifp->if_fib, isaddr, 0, 0, + &nh4) != 0) goto drop; if (nh4.nh_ifp != ifp) { ARP_LOG(LOG_INFO, "proxy: ignoring request"
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