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Elsukov" Subject: git: 613eb8ee9cb2 - stable/14 - ipv6: don't complain when deleting an address with prefix length of 128 List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: ae X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: 613eb8ee9cb269205cdf168e02b4b093ae1c9a62 Auto-Submitted: auto-generated The branch stable/14 has been updated by ae: URL: https://cgit.FreeBSD.org/src/commit/?id=613eb8ee9cb269205cdf168e02b4b093ae1c9a62 commit 613eb8ee9cb269205cdf168e02b4b093ae1c9a62 Author: Andrey V. Elsukov AuthorDate: 2025-10-07 13:08:15 +0000 Commit: Andrey V. Elsukov CommitDate: 2025-10-15 14:06:43 +0000 ipv6: don't complain when deleting an address with prefix length of 128 Save prefix length in unused field in6_ifaddr->ia_plen, then on remove check if an address has 128 prefix length, and if so, we don't need to complain that there is none of related prefixes. Reviewed by: kp Obtained from: Yandex LLC Sponsored by: Yandex LLC Differential Revision: https://reviews.freebsd.org/D52952 (cherry picked from commit c4cce0a3e94e3b22f874508d1a9cd81442648238) --- sys/netinet6/in6.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c index 8d43ae18969a..b2b3c64d0a77 100644 --- a/sys/netinet6/in6.c +++ b/sys/netinet6/in6.c @@ -1288,8 +1288,8 @@ in6_addifaddr(struct ifnet *ifp, struct in6_aliasreq *ifra, struct in6_ifaddr *i */ bzero(&pr0, sizeof(pr0)); pr0.ndpr_ifp = ifp; - pr0.ndpr_plen = in6_mask2len(&ifra->ifra_prefixmask.sin6_addr, - NULL); + pr0.ndpr_plen = ia->ia_plen = + in6_mask2len(&ifra->ifra_prefixmask.sin6_addr, NULL); if (pr0.ndpr_plen == 128) { /* we don't need to install a host route. */ goto aifaddr_out; @@ -1483,16 +1483,16 @@ in6_unlink_ifa(struct in6_ifaddr *ia, struct ifnet *ifp) * positive reference. */ remove_lle = 0; - if (ia->ia6_ndpr == NULL) { - nd6log((LOG_NOTICE, - "in6_unlink_ifa: autoconf'ed address " - "%s has no prefix\n", ip6_sprintf(ip6buf, IA6_IN6(ia)))); - } else { + if (ia->ia6_ndpr != NULL) { ia->ia6_ndpr->ndpr_addrcnt--; /* Do not delete lles within prefix if refcont != 0 */ if (ia->ia6_ndpr->ndpr_addrcnt == 0) remove_lle = 1; ia->ia6_ndpr = NULL; + } else if (ia->ia_plen < 128) { + nd6log((LOG_NOTICE, + "in6_unlink_ifa: autoconf'ed address " + "%s has no prefix\n", ip6_sprintf(ip6buf, IA6_IN6(ia)))); } nd6_rem_ifa_lle(ia, remove_lle);