Date: Sat, 6 Feb 2021 02:40:18 GMT From: Cy Schubert <cy@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 344f1083e128 - main - ipfilter: Use the softn (NAT softc) host map size in ip_nat6 calculation. Message-ID: <202102060240.1162eIcl013179@gitrepo.freebsd.org>
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The branch main has been updated by cy: URL: https://cgit.FreeBSD.org/src/commit/?id=344f1083e128d8d41ca31853dac513ca3efd9d1f commit 344f1083e128d8d41ca31853dac513ca3efd9d1f Author: Cy Schubert <cy@FreeBSD.org> AuthorDate: 2021-02-05 14:26:04 +0000 Commit: Cy Schubert <cy@FreeBSD.org> CommitDate: 2021-02-06 02:39:38 +0000 ipfilter: Use the softn (NAT softc) host map size in ip_nat6 calculation. The ipfilter NAT table host map size is a tunable that defaults to a macro value defined at build time. HOSTMAP_SIZE is saved in softn (the ipnat softc) at initialization. It can be tuned (changed) at runtime using the ipf -T command. If the hostmap_size tunable is adjusted the calculation to determine where to put new entries in the table was incorrect. Use the tunable in the NAT softc instead of the static build time value. MFC after: 1 week --- sys/contrib/ipfilter/netinet/ip_nat6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/contrib/ipfilter/netinet/ip_nat6.c b/sys/contrib/ipfilter/netinet/ip_nat6.c index b2713aec812a..13fa6fb6bc30 100644 --- a/sys/contrib/ipfilter/netinet/ip_nat6.c +++ b/sys/contrib/ipfilter/netinet/ip_nat6.c @@ -390,7 +390,7 @@ ipf_nat6_hostmap(softn, np, src, dst, map, port) hv += dst->i6[2]; hv += dst->i6[1]; hv += dst->i6[0]; - hv %= HOSTMAP_SIZE; + hv %= softn->ipf_nat_hostmap_sz; for (hm = softn->ipf_hm_maptable[hv]; hm; hm = hm->hm_next) if (IP6_EQ(&hm->hm_osrc6, src) && IP6_EQ(&hm->hm_odst6, dst) &&
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