Author: thj Date: Fri Oct 5 12:51:30 2018 New Revision: 339195 URL: https://svnweb.freebsd.org/changeset/base/339195
Log: Convert UDP length to host byte order When getting the number of bytes to checksum make sure to convert the UDP length to host byte order when the entire header is not in the first mbuf. Reviewed by: jtl, tuexen, ae Approved by: re (gjb), jtl (mentor) Differential Revision: https://reviews.freebsd.org/D17357 Modified: head/sys/netinet/ip_output.c Modified: head/sys/netinet/ip_output.c ============================================================================== --- head/sys/netinet/ip_output.c Fri Oct 5 12:08:32 2018 (r339194) +++ head/sys/netinet/ip_output.c Fri Oct 5 12:51:30 2018 (r339195) @@ -932,10 +932,11 @@ in_delayed_cksum(struct mbuf *m) if (m->m_pkthdr.csum_flags & CSUM_UDP) { /* if udp header is not in the first mbuf copy udplen */ - if (offset + sizeof(struct udphdr) > m->m_len) + if (offset + sizeof(struct udphdr) > m->m_len) { m_copydata(m, offset + offsetof(struct udphdr, uh_ulen), sizeof(cklen), (caddr_t)&cklen); - else { + cklen = ntohs(cklen); + } else { uh = (struct udphdr *)mtodo(m, offset); cklen = ntohs(uh->uh_ulen); } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
