Date: Tue, 23 Apr 2019 12:23:45 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r346596 - head/sys/netinet6 Message-ID: <201904231223.x3NCNjd9045051@repo.freebsd.org>
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Author: kib Date: Tue Apr 23 12:23:44 2019 New Revision: 346596 URL: https://svnweb.freebsd.org/changeset/base/346596 Log: poib: assign link-local address according to RFC RFC 4391 specifies that the IB interface GID should be re-used as IPv6 link-local address. Since the code in in6_get_hw_ifid() ignored IFT_INFINIBAND case, ibX interfaces ended up with the local address borrowed from some other interface, which is non-compliant. Use lowest eight bytes from GID for filling the link-local address, same as Linux. Reviewed by: bz (previous version), ae, hselasky, slavash, Sponsored by: Mellanox Technologies MFC after: 1 week Differential revision: https://reviews.freebsd.org/D20006 Modified: head/sys/netinet6/in6_ifattach.c Modified: head/sys/netinet6/in6_ifattach.c ============================================================================== --- head/sys/netinet6/in6_ifattach.c Tue Apr 23 10:12:33 2019 (r346595) +++ head/sys/netinet6/in6_ifattach.c Tue Apr 23 12:23:44 2019 (r346596) @@ -328,6 +328,14 @@ found: NET_EPOCH_EXIT(et); return -1; + case IFT_INFINIBAND: + if (addrlen != 20) { + NET_EPOCH_EXIT(et); + return -1; + } + bcopy(addr + 12, &in6->s6_addr[8], 8); + break; + default: NET_EPOCH_EXIT(et); return -1;
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