Date: Thu, 11 Mar 2021 08:25:58 GMT From: "Alexander V. Chernikov" <melifaro@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: dba80ca2cfb0 - releng/13.0 - Make in_localip_more() fib-aware. Message-ID: <202103110825.12B8Pw09025894@gitrepo.freebsd.org>
next in thread | raw e-mail | index | archive | help
The branch releng/13.0 has been updated by melifaro: URL: https://cgit.FreeBSD.org/src/commit/?id=dba80ca2cfb0b0c1447269e8a6a3545f428c51e6 commit dba80ca2cfb0b0c1447269e8a6a3545f428c51e6 Author: Alexander V. Chernikov <melifaro@FreeBSD.org> AuthorDate: 2021-02-16 20:00:46 +0000 Commit: Alexander V. Chernikov <melifaro@FreeBSD.org> CommitDate: 2021-03-11 08:23:07 +0000 Make in_localip_more() fib-aware. It fixes loopback route installation for the interfaces in the different fibs using the same prefix. Reviewed By: donner PR: 189088 Approved by: re(gjb) Differential Revision: https://reviews.freebsd.org/D28673 (cherry picked from commit f67641675958cb566b0ae50dc6942017d42393fe) --- sys/netinet/in.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/sys/netinet/in.c b/sys/netinet/in.c index eb58c3453cfc..bcf071a81e0e 100644 --- a/sys/netinet/in.c +++ b/sys/netinet/in.c @@ -163,18 +163,23 @@ in_ifhasaddr(struct ifnet *ifp, struct in_addr in) * the supplied one but with same IP address value. */ static struct in_ifaddr * -in_localip_more(struct in_ifaddr *ia) +in_localip_more(struct in_ifaddr *original_ia) { struct rm_priotracker in_ifa_tracker; - in_addr_t in = IA_SIN(ia)->sin_addr.s_addr; - struct in_ifaddr *it; + in_addr_t original_addr = IA_SIN(original_ia)->sin_addr.s_addr; + uint32_t original_fib = original_ia->ia_ifa.ifa_ifp->if_fib; + struct in_ifaddr *ia; IN_IFADDR_RLOCK(&in_ifa_tracker); - LIST_FOREACH(it, INADDR_HASH(in), ia_hash) { - if (it != ia && IA_SIN(it)->sin_addr.s_addr == in) { - ifa_ref(&it->ia_ifa); + LIST_FOREACH(ia, INADDR_HASH(original_addr), ia_hash) { + in_addr_t addr = IA_SIN(ia)->sin_addr.s_addr; + uint32_t fib = ia->ia_ifa.ifa_ifp->if_fib; + if (!V_rt_add_addr_allfibs && (original_fib != fib)) + continue; + if ((original_ia != ia) && (original_addr == addr)) { + ifa_ref(&ia->ia_ifa); IN_IFADDR_RUNLOCK(&in_ifa_tracker); - return (it); + return (ia); } } IN_IFADDR_RUNLOCK(&in_ifa_tracker); @@ -1007,11 +1012,6 @@ in_scrubprefix(struct in_ifaddr *target, u_int flags) if (ia_need_loopback_route(target) && (flags & LLE_STATIC)) { struct in_ifaddr *eia; - /* - * XXXME: add fib-aware in_localip. - * We definitely don't want to switch between - * prefixes in different fibs. - */ eia = in_localip_more(target); if (eia != NULL) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202103110825.12B8Pw09025894>