Date: Sat, 1 Dec 2018 17:59:42 +0000 (UTC) From: Cy Schubert <cy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r341377 - head/sys/contrib/ipfilter/netinet Message-ID: <201812011759.wB1HxgTL083143@repo.freebsd.org>
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Author: cy Date: Sat Dec 1 17:59:41 2018 New Revision: 341377 URL: https://svnweb.freebsd.org/changeset/base/341377 Log: Restore handling of PMTU discovery, removed through an unifdef(1) following the MFV of r254219 into r255332. In addition the 'FreeBSD' macro was never defined in ipfilter 5.1.2 thus it never would have been enabled in the first place. This work is prompted by a general cleanup of the IP Filter code prompted by working to resolve a PR. More to follow. MFC after: 1 week Modified: head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c Modified: head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c ============================================================================== --- head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c Sat Dec 1 17:48:28 2018 (r341376) +++ head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c Sat Dec 1 17:59:41 2018 (r341377) @@ -85,6 +85,8 @@ static const char rcsid[] = "@(#)$Id$"; #endif extern int ip_optcopy __P((struct ip *, struct ip *)); +VNET_DECLARE(int, path_mtu_discovery); +#define V_path_mtu_discovery VNET(path_mtu_discovery) # ifdef IPFILTER_M_IPFILTER MALLOC_DEFINE(M_IPFILTER, "ipfilter", "IP Filter packet filter data structures"); @@ -477,11 +479,7 @@ ipf_send_ip(fin, m) IP_HL_A(ip, sizeof(*oip) >> 2); ip->ip_tos = oip->ip_tos; ip->ip_id = fin->fin_ip->ip_id; -#if defined(FreeBSD) && (__FreeBSD_version > 460000) - ip->ip_off = htons(path_mtu_discovery ? IP_DF : 0); -#else - ip->ip_off = 0; -#endif + ip->ip_off = htons(V_path_mtu_discovery ? IP_DF : 0); ip->ip_ttl = V_ip_defttl; ip->ip_sum = 0; break;
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