Date: Sun, 18 Feb 2018 11:36:46 +0000 (UTC) From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r329518 - stable/11/sys/netinet Message-ID: <201802181136.w1IBakgG099182@repo.freebsd.org>
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Author: ae Date: Sun Feb 18 11:36:46 2018 New Revision: 329518 URL: https://svnweb.freebsd.org/changeset/base/329518 Log: MFC r329101: Reinitialize IP header length after checksum calculation. It is used later by TCP-MD5 code. This fixes the problem with broken TCP-MD5 over IPv4 when NIC has disabled TCP checksum offloading. PR: 223835 Modified: stable/11/sys/netinet/tcp_input.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/netinet/tcp_input.c ============================================================================== --- stable/11/sys/netinet/tcp_input.c Sun Feb 18 11:17:39 2018 (r329517) +++ stable/11/sys/netinet/tcp_input.c Sun Feb 18 11:36:46 2018 (r329518) @@ -706,6 +706,7 @@ tcp_input(struct mbuf **mp, int *offp, int proto) ip->ip_tos = iptos; /* Re-initialization for later version check */ ip->ip_v = IPVERSION; + ip->ip_hl = off0 >> 2; } if (th->th_sum) {
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